319 files changed, 114254 insertions, 0 deletions

diff --git a/FAQ b/FAQ
new file mode 100644
index 0000000..522e7c8
--- /dev/null
+++ b/FAQ
@@ -0,0 +1,11 @@
+The FAQ is no longer maintained with the sendmail release.  It is
+posted regularly to comp.mail.sendmail, comp.mail.misc, comp.mail.smail,
+comp.answers, and news.answers, and can be obtained via anonymous FTP
+from ftp://rtfm.mit.edu/pub/usenet/news.answers/mail/sendmail-faq/.
+If you do not have access to anonymous FTP, you can retrieve it by
+sending email to mail-server@rtfm.mit.edu with the command "send
+usenet/news.answers/mail/sendmail-faq" in the message.
+
+An HTML version is also available at http://www.sendmail.org/faq/.
+
+				--Eric Allman		19 June 1997
diff --git a/KNOWNBUGS b/KNOWNBUGS
new file mode 100644
index 0000000..c334fa4
--- /dev/null
+++ b/KNOWNBUGS
@@ -0,0 +1,107 @@
+
+
+	     K N O W N   B U G S   I N   S E N D M A I L
+			     (for 8.8.6)
+
+
+The following are bugs or deficiencies in sendmail that I am aware of
+but which have not been fixed in the current release.  You probably
+want to get the most up to date version of this from ftp.sendmail.org	
+in /pub/sendmail/KNOWNBUGS.  For descriptions of bugs that have been
+fixed, see the file RELEASE_NOTES (in the root directory of the sendmail
+distribution).
+
+This list is not guaranteed to be complete.
+
+
+* Null bytes are not handled properly in headers.
+
+  Sendmail should handle full binary data.  As it stands, it handles
+  all values in the body, but only 0x01-0x80 and 0xA0-0xFF in
+  the header.  Notably missing is 0x00, which would require a major
+  restructuring of the code -- for example, almost no C library support
+  could be used to handle strings.
+
+* Duplicate error messages.
+
+  Sometimes identical, duplicate error messages can be generated.  As
+  near as I can tell, this is rare and relatively innocuous.
+
+* $c (hop count) macro improperly set.
+
+  The $c macro is supposed to contain the current hop count, for use
+  when calling a mailer.  This macro is initialized too early, and
+  is always zero (or the value of the -c command line flag, if any).
+  This macro will probably be removed entirely in a future release;
+  I don't believe there are any mailers left that require it.
+
+* If you EXPN a list or user that has a program mailer, the output of
+  EXPN will include ``@local.host.name''.  You can't actually mail to
+  this address.  It's not clear what the right behaviour is in this
+  circumstance.
+
+* \231 considered harmful.
+
+  Header addresses that have the \231 character (and possibly others
+  in the range \201 - \237) behave in odd and usually unexpected ways.
+
+* accept() problem on SVR4.
+
+  Apparently, the sendmail daemon loop (doing accept()s on the network)
+  can get into a wierd state on SVR4; it starts logging ``SYSERR:
+  getrequests: accept: Protocol Error''.  The workaround is to kill
+  and restart the sendmail daemon.  We don't have an SVR4 system at
+  Berkeley that carries more than token mail load, so I can't validate
+  this.  It is likely to be a glitch in the sockets emulation, since
+  "Protocol Error" is not possible error code with Berkeley TCP/IP.
+
+  I've also had someone report the message ``sendmail: accept:
+  SIOCGPGRP failed errno 22'' on an SVR4 system.  This message is
+  not in the sendmail source code, so I assume it is also a bug
+  in the sockets emulation.  (Errno 22 is EINVAL "Invalid Argument"
+  on all the systems I have available, including Solaris 2.x.)
+  Apparently, this problem is due to linking -lc before -lsocket;
+  if you are having this problem, check your Makefile.
+
+* accept() problem on Linux.
+
+  Apparently, the accept() in sendmail daemon loop can return ETIMEDOUT
+  and cause sendmail to sleep for 5 seconds during which time no new
+  connections will be accepted.  An error is reported to syslog:
+
+  Jun  9 17:14:12 hostname sendmail[207]: NOQUEUE: SYSERR(root):
+			getrequests: accept: Connection timed out
+
+  "Connection timed out" is not documented as a valid return from
+  accept(2) and this is believed to be a bug in the Linux kernel.
+
+* Excessive mailing list nesting can run out of file descriptors.
+
+  If you have a mailing list that includes lots of other mailing
+  lists, each of which has a separate owner, you can run out of
+  file descriptors.  Each mailing list with a separate owner uses
+  one open file descriptor (prior to 8.6.6 it was three open
+  file descriptors per list).  This is particularly egregious if
+  you have your connection cache set to be large.
+
+* Connection caching breaks if you pass the port number as an argument.
+
+  If you have a definition such as:
+
+	  Mport,          P=[IPC], F=kmDFMuX, S=11/31, R=21,
+			  M=2100000, T=DNS/RFC822/SMTP,
+			  A=IPC [127.0.0.1] $h
+
+  (i.e., where $h is the port number instead of the host name) the
+  connection caching code will break because it won't notice that
+  two messages addressed to different ports should use different
+  connections.
+
+* ESMTP SIZE underestimates the size of a message
+
+  Sendmail makes no allowance for headers that it adds, nor does it
+  account for the SMTP on-the-wire \r\n expansion.  It probably doesn't
+  allow for 8->7 bit MIME conversions either.
+
+
+(Version 8.25, last updated 6/13/97)
diff --git a/READ_ME b/READ_ME
new file mode 100644
index 0000000..08b5aff
--- /dev/null
+++ b/READ_ME
@@ -0,0 +1,326 @@
+/*-
+ *	@(#)READ_ME	8.32 (Berkeley) 7/6/97
+ */
+
+			SENDMAIL RELEASE 8
+
+This directory has the latest sendmail software from Berkeley.  See
+doc/changes/changes.me for a summary of changes since 5.67.
+
+Report any bugs to sendmail-bugs@sendmail.ORG
+
+There is a web site at http://WWW.Sendmail.ORG -- see that site for
+the latest updates.
+
+******************************************************************
+**  DO NOT USE MAKE to compile sendmail.  Instead, cd src and	**
+**  use the "makesendmail" shell script.  On many environments	**
+**  this will do everything for you, no fuss, no muss.  See	**
+**  src/READ_ME for more details of compilation.  See cf/README	**
+**  for details about building a runtime configuration file.	**
+******************************************************************
+
+
++--------------+
+| MANUAL PAGES |
++--------------+
+
+The sendmail manual pages use contemporary Berkeley troff macros.  If
+your system does not process these manual pages, you can pick up the
+new macros in a BSD Net/2 FTP site (e.g.  on FTP.UU.NET, the files
+/systems/unix/bsd-sources/share/tmac/me/strip.sed and
+/systems/unix/bsd-sources/share/tmac/*).
+
+The strip.sed file is only used in installation.
+
+After installation, edit tmac.doc and tmac.andoc to reflect the
+installation path of the tmac files.  Those files contain pointers to
+/usr/share/tmac/, and those pointers are not changed by the `make
+install` process.  There's also a bug in those files -- make the
+following patch:
+
+*** tmac.an~    Tue Jul 12 14:29:09 1994
+--- tmac.an     Fri Jul 15 13:17:54 1994
+***************
+*** 50,55 ****
+  .de TH
+  .rn TH xX
+  .so /usr/share/lib/tmac/tmac.an.old
+! .TH \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8
+  .rm xX
+  ..
+--- 50,55 ----
+  .de TH
+  .rn TH xX
+  .so /usr/share/lib/tmac/tmac.an.old
+! .TH "\\$1" "\\$2" "\\$3" "\\$4" "\\$5" "\\$6" "\\$7" "\\$8"
+  .rm xX
+  ..
+
+Rename the existing tmac.an to be tmac.an.old, and rename tmac.andoc
+to be tmac.an.
+
+tmac.an will choose between tmac.an.old, your old macros, or tmac.doc,
+which are the new macros, so that both the new man pages and the
+existing man pages will be translated properly.
+
+I'm also told that the groff distribution from MIT has a tmac.doc
+macro set that is compatible with these macros.
+
+
++-----------------------+
+| RELATED DOCUMENTATION |
++-----------------------+
+
+There are other files you should read.  Rooted in this directory are:
+
+  CHANGES-R5-R8
+	Describes changes between Release 5 and Release 8 of sendmail.
+	There are some things that may behave somewhat differently.
+	For example, the rules governing when :include: files will
+	be read have been tightened up for security reasons.
+  FAQ
+	Answers to Frequently Asked Questions.
+  KNOWNBUGS
+	Known bugs in the current release.  I try to keep this up
+	to date -- get the latest version from FTP.CS.Berkeley.EDU
+	in /ucb/sendmail/KNOWNBUGS.
+  RELEASE_NOTES
+	A detailed description of the changes in each version.  This
+	is quite long, but informative.
+  src/READ_ME
+	Details on compiling and installing sendmail.
+  cf/README
+	Details on configuring sendmail.
+  doc/op/op.me
+	The sendmail Installation & Operations Guide.  Be warned: if
+	you are running this off on SunOS or some other system with an
+	old version of -me, you need to add the following macro to the
+	macros:
+
+		.de sm
+		\s-1\\$1\\s0\\$2
+		..
+
+	This sets a word in a smaller pointsize.
+
+
++--------------+
+| RELATED RFCS |
++--------------+
+
+There are several related RFCs that you may wish to read -- they are
+available via anonymous FTP to several sites, including nic.ddn.mil
+(directory rfc), ftp.nisc.sri.com (rfc), nis.nsf.net (RFC),
+nisc.jvnc.net (rfc), venera.isi.edu (in-notes), and wuarchive.wustl.edu
+(info/rfc).  They can also be retrieved via electronic mail by sending
+email to one of:
+
+	mail-server@nisc.sri.com
+		Put "send rfcNNN" in message body
+	nis-info@nis.nsf.net
+		Put "send RFCnnn.TXT-1" in message body
+	sendrfc@jvnc.net
+		Put "RFCnnn" as Subject: line
+
+Important RFCs for electronic mail are:
+
+	RFC821	SMTP protocol
+	RFC822	Mail header format
+	RFC974	MX routing
+	RFC976	UUCP mail format
+	RFC1123	Host requirements (modifies 821, 822, and 974)
+	RFC1413	Identification server
+	RFC1869	SMTP Service Extensions (ESMTP spec)
+	RFC1652	SMTP Service Extension for 8bit-MIMEtransport
+	RFC1870	SMTP Service Extension for Message Size Declaration
+	RFC1521	MIME: Multipurpose Internet Mail Extensions
+	RFC1344	Implications of MIME for Internet Mail Gateways
+	RFC1428	Transition of Internet Mail from Just-Send-8 to
+		8-bit SMTP/MIME
+	RFC1891	SMTP Service Extension for Delivery Status Notifications
+	RFC1892	Multipart/Report Content Type for the Reporting of
+		Mail System Administrative Messages
+	RFC1893	Enhanced Mail System Status Codes
+	RFC1894	An Extensible Message Format for Delivery Status
+		Notifications
+	RFC1985	SMTP Service Extension for Remote Message Queue Starting
+
+Other standards that may be of interest (but which are less directly
+relevant to sendmail) are:
+
+	RFC987	Mapping between RFC822 and X.400
+	RFC1049	Content-Type header field (extension to RFC822)
+
+Warning to AIX users: this version of sendmail does not implement
+MB, MR, or MG DNS resource records, as defined (as experiments) in
+RFC1035.
+
+
++-------------------+
+| DATABASE ROUTINES |
++-------------------+
+
+IF YOU WANT TO RUN THE NEW BERKELEY DB SOFTWARE:  ****  DO NOT  ****
+use the version that was on the Net2 tape -- it has a number of
+nefarious bugs that were bad enough when I got them; you shouldn't have
+to go through the same thing.  Instead, get a new version via the web at
+http://www.sleepycat.com/packages/db.1.85.tar.gz.  This software is
+highly recommended; it gets rid of several stupid limits, it's much
+faster, and the interface is nicer to animals and plants.  You will
+also probably find that you have to add -I/where/you/put/db/include
+to the sendmail makefile to get db.h to work properly.
+
+Be sure you remove ndbm.h and ndbm.o from the db distribution.  These
+will cause problems with sendmail because sendmail already understands
+about NEWDB and NDBM coexisting.
+
+
++--------------------+
+| HOST NAME SERVICES |
++--------------------+
+
+If you are using NIS or /etc/hosts, it is critical that you
+list the long (fully qualified) name somewhere (preferably first) in
+the /etc/hosts file used to build the NIS database.  For example, the
+line should read
+
+	128.32.149.68   mastodon.CS.Berkeley.EDU mastodon
+
+**** NOT ****
+
+	128.32.149.68   mastodon
+
+If you do not include the long name, sendmail will complain loudly
+about ``unable to qualify my own domain name (mastodon) -- using
+short name'' and conclude that your canonical name is the short
+version and use that in messages.  The name "mastodon" doesn't mean
+much outside of Berkeley, and so this creates incorrect and unreplyable
+messages.
+
+
++-------------+
+| USE WITH MH |
++-------------+
+
+This version of sendmail notices and reports certain kinds of SMTP
+protocol violations that were ignored by older versions.  If you
+are running MH you may wish to install the patch in contrib/mh.patch
+that will prevent these warning reports.  This patch also works
+with the old version of sendmail, so it's safe to go ahead and
+install it.
+
+
++----------------+
+| USE WITH IDENT |
++----------------+
+
+Sendmail 8 supports the IDENT protocol, as defined by RFC 1413.
+No ident server is included with this distribution.  I have found
+copies available on:
+
+  ftp.lysator.liu.se		/pub/ident/servers
+  romulus.ucs.uoknor.edu	/networking/ident/servers
+  ftp.cyf-kr.edu.pl		/agh/uciagh/network/ident
+
+If you want to run an IDENT server, I suggest getting a copy from
+one of those sites.  Versions are available for several different
+systems, including Apollo, BSD, NeXT, AIX, TOPS20, and VMS.
+
+
++-----------+
+| MAKEFILES |
++-----------+
+
+The Makefiles in this release use the new Berkeley "make" that is
+available in BSD Net/2 and 4.4BSD.  If you are using this version
+of make, you may notice one or two places where the Makefile includes
+"../../Makefile.inc".  This file is not included with the sendmail
+distribution because it's not part of sendmail.  However, it is,
+in toto:
+
+	#	@(#)Makefile.inc	8.1 (Berkeley) 6/6/93
+
+	BINDIR?=	/usr/sbin
+
+The other directories should all have Makefile.dist files that work
+on the old make, albeit without all the niceties included.
+
+You can also get a new Berkeley make from the Net2 release (available
+on many public FTP archives).  This version should also interpret old
+Makefiles, so you could drop it in as your default make.
+
+For more details, see src/READ_ME.
+
+
++-----------------------+
+| DIRECTORY PERMISSIONS |
++-----------------------+
+
+Sendmail often gets blamed for many problems that are actually the
+result of other problems, such as overly permissive modes on directories.
+For this reason, sendmail checks the modes on system directories and
+files to determine if they have been trusted.  For sendmail to run
+without complaining, you MUST execute the following command:
+
+	chmod go-w / /etc /usr /var /var/spool /var/spool/mqueue
+
+You will probably have to tweak this for your environment (for example,
+some systems put the spool directory into /usr/spool instead of
+/var/spool).  As a general rule, after you have compiled sendmail,
+run the command
+
+	sendmail -v -bi
+
+to initialize the alias database.  If it gives messages such as
+
+	WARNING: writable directory /etc
+	WARNING: writable directory /usr/spool/mqueue
+
+then the directories listed have inappropriate write permissions and
+should be secured to avoid various possible security attacks.
+
+
++---------------------+
+| DIRECTORY STRUCTURE |
++---------------------+
+
+The structure of this directory tree is:
+
+cf		Source for Berkeley configuration files.  These are
+		different than what you've seen before.  They are a
+		fairly dramatic rewrite, requiring the new sendmail
+		(since they use new features).
+contrib		Some contributed tools to help with sendmail.  THESE
+		ARE NOT SUPPORTED by Berkeley -- contact the original
+		authors if you have problems.  (This directory is not
+		on the 4.4BSD tape.)
+doc		Documentation.  If you are getting source, read
+		op.me -- it's long, but worth it.
+mail.local	The source for the local delivery agent used for 4.4BSD.
+		THIS IS NOT PART OF SENDMAIL! and may not compile
+		everywhere, since it depends on some 4.4-isms.  Warning:
+		it does mailbox locking differently than other systems.
+mailstats	Statistics printing program.  It has the pathname of
+		sendmail.st compiled in, so if you've changed that,
+		beware.  This isn't all that useful.
+makemap		A program that creates the keyed maps used by the $( ... $)
+		construct in sendmail.  It is primitive but effective.
+		It takes a very simple input format, so you will probably
+		expect to preprocess must human-convenient formats
+		using sed scripts before this program will like them.
+		But it should be functionally complete.
+praliases	A program to print the DBM or NEWDB version of the
+		aliases file.
+rmail		Source for rmail(8).  This is used as a delivery
+		agent for for UUCP, and could presumably be used by
+		other non-socket oriented mailers.  Older versions of
+		rmail are probably deficient.  RMAIL IS NOT PART OF
+		SENDMAIL!!!  The 4.4BSD source is included for you to
+		look at or try to port to your system.  I know it doesn't
+		compile on {SunOS, HP-UX, OSF/1, other} (pick one).
+smrsh		The "sendmail restricted shell", which can be used as
+		a replacement for /bin/sh in the prog mailer to provide
+		increased security control.  NOT PART OF SENDMAIL!
+src		Source for the sendmail program itself.
+test		Some test scripts (currently only for compilation aids).
diff --git a/RELEASE_NOTES b/RELEASE_NOTES
new file mode 100644
index 0000000..b3e1a8b
--- /dev/null
+++ b/RELEASE_NOTES
@@ -0,0 +1,5718 @@
+			SENDMAIL RELEASE NOTES
+	     @(#)RELEASE_NOTES	8.8.8.4 (Berkeley) 10/24/97
+
+
+This listing shows the version of the sendmail binary, the version
+of the sendmail configuration files, the date of release, and a
+summary of the changes in that release.
+
+8.8.8/8.8.8	97/10/24
+	If the check_relay ruleset failed, the relay= field was logged
+		incorrectly.  Problem noted by Kari Hurtta of the Finnish
+		Meteorological Institute.
+	If /usr/tmp/dead.letter already existed, sendmail could not
+		add additional bounces to it.  Problem noted by Thomas J.
+		Arseneault of SRI International.
+	If an SMTP mailer used a non-standard port number for the outgoing
+		connection, it would be displayed incorrectly in verbose mode.
+		Problem noted by John Kennedy of Cal State University, Chico.
+	Log the ETRN parameter specified by the client before altering them
+		to internal form.  Suggested by Bob Kupiec of GES-Verio.
+	EXPN and VRFY SMTP commands on malformed addresses were logging as
+		User unknown with bogus delay= values.  Change them to log
+		the same as compliant addresses.  Problem noted by Kari E.
+		Hurtta of the Finnish Meteorological Institute.
+	Ignore the debug resolver option unless using sendmail debug trace
+		option for resolver.  Problem noted by Greg Nichols of Wind
+		River Systems.
+	If SingleThreadDelivery was enabled and the remote server returned a
+		protocol error on the DATA command, the connection would be
+		closed but the persistent host status file would not be
+		unlocked so other sendmail processes could not deliver to
+		that host.  Problem noted by Peter Wemm of DIALix.
+	If queueing up a message due to an expensive mailer, don't increment
+		the number of delivery attempts or set the last delivery
+		attempt time so the message will be delivered on the next
+		queue run regardless of MinQueueAge.  Problem noted by
+		Brian J. Coan of the Institute for Global Communications.
+	Authentication warnings of "Processed from queue _directory_" and
+		"Processed by _username_ with -C _filename_" would be logged
+		with the incorrect timestamp.  Problem noted by Kari E. Hurtta
+		of the Finnish Meteorological Institute.
+	Use a better heuristic for detecting GDBM.
+	Log null connections on dropped connections.  Problem noted by
+		Jon Lewis of Florida Digital Turnpike.
+	If class dbm maps are rebuilt, sendmail will now detect this and
+		reopen the map.  Previously, they could give stale
+		results during a single message processing (but would
+		recover when the next message was received).  Fix from
+		Joe Pruett of Q7 Enterprises.
+	Do not log failures such as "User unknown" on -bv or SMTP VRFY
+		requests.  Problem noted by Kari E. Hurtta of the
+		Finnish Meteorological Institute.
+	Do not send a bounce message back to the sender regarding bad
+		recipients if the SMTP connection is dropped before the
+		message is accepted.  Problem noted by Kari E. Hurtta of the
+		Finnish Meteorological Institute.
+	Use "localhost" instead of "[UNIX: localhost]" when connecting to
+		sendmail via a UNIX pipe.  This will allow rulesets using
+		$&{client_name} to process without sending the string through
+		dequote.  Problem noted by Alan Barrett of Internet Africa.
+	A combination of deferred delivery mode, a double bounce situation,
+		and the inability to save a bounce message to
+		/var/tmp/dead.letter would cause sendmail to send a bounce
+		to postmaster but not remove the offending envelope from the
+		queue causing it to create a new bounce message each time the
+		queue was run.  Problem noted by Brad Doctor of Net Daemons
+		Associates.
+	Remove newlines from hostname information returned via DNS.  There are
+		no known security implications of newlines in hostnames as
+		sendmail filters newlines in all vital areas; however, this
+		could cause confusing error messages.
+	Starting with sendmail 8.8.6, mail sent with the '-t' option would be
+		rejected if any of the specified addresses were bad.  This
+		behavior was modified to only reject the bad addresses and not
+		the entire message.  Problem noted by Jozsef Hollosi of
+		SuperNet, Inc.
+	Use Timeout.fileopen when delivering mail to a file.  Suggested by
+		Bryan Costales of InfoBeat, Inc.
+	Display the proper Final-Recipient on DSN messages for non-SMTP
+		mailers.  Problem noted by Kari E. Hurtta of the
+		Finnish Meteorological Institute.
+	An error in calculating the available space in the list of addresses
+		for logging deliveries could cause an address to be silently
+		dropped.
+	Include the initial user environment if sendmail is restarted via
+		a HUP signal.  This will give room for the process title.
+		Problem noted by Jon Lewis of Florida Digital Turnpike.
+	Mail could be delivered without a body if the machine does not
+		support flock locking and runs out of processes during
+		delivery.  Fix from Chuck Lever of the University of Michigan.
+	Drop recipient address from 251 and 551 SMTP responses per RFC 821.
+		Problem noted by Kari E. Hurtta of the Finnish Meteorological
+		Institute.
+	Make sure non-rebuildable database maps are opened before the
+		rebuildable maps (i.e. alias files) in case the database maps
+		are needed for verifying the left hand side of the aliases.
+		Problem noted by Lloyd Parkes of Victoria University.
+	Make sure sender RFC822 source route addresses are alias expanded for
+		bounce messages.  Problem noted by Juergen Georgi of
+		RUS University of Stuttgart.
+	Minor lint fixes.
+	Return a temporary error instead of a permanent error if an LDAP map
+		search returns an error.  This will allow sequenced maps which
+		use other LDAP servers to be checked.  Fix from Booker Bense
+		of Stanford University.
+	When automatically converting from quoted printable to 8bit text do
+		not pad bare linefeeds with a space.  Problem noted by Theo
+		Nolte of the University of Technology Aachen, Germany.
+	Portability:
+		Non-standard C compilers may have had a problem compiling
+			conf.c due to a standard C external declaration of
+			setproctitle().  Problem noted by Ted Roberts of
+			Electronic Data Systems.
+		AUX: has a broken O_EXCL implementation.  Reported by Jim
+			Jagielski of jaguNET Access Services.
+		BSD/OS: didn't compile if HASSETUSERCONTEXT was defined.
+		Digital UNIX: Digital UNIX (and possibly others) moves
+			loader environment variables into the loader memory
+			area.  If one of these environment variables (such as
+			LD_LIBRARY_PATH) was the last environment variable,
+			an invalid memory address would be used by the process
+			title routine causing memory corruption.  Problem
+			noted by Sam Hartman of Mesa Internet Systems.
+		GNU libc: uses an enum for _PC_CHOWN_RESTRICTED which caused
+			chownsafe() to always return 0 even if the OS does
+			not permit file giveaways.  Problem noted by
+			Yasutaka Sumi of The University of Tokyo.
+		IRIX6: Syslog buffer size set to 512 bytes.  Reported by 
+			Gerald Rinske of Siemens Business Services VAS.
+		Linux: Pad process title with NULLs.  Problem noted by
+			Jon Lewis of Florida Digital Turnpike.
+		SCO OpenServer 5.0: SIOCGIFCONF ioctl call returns an
+			incorrect value for the number of interfaces.
+			Problem noted by Chris Loelke of JetStream Internet
+			Services.
+		SINIX: Update for Makefile and syslog buffer size from Gerald
+			Rinske of Siemens Business Services VAS.
+		Solaris: Make sure HASGETUSERSHELL setting for SunOS is not
+			used on a Solaris machine.  Problem noted by
+			Stephen Ma of Jtec Pty Limited.
+		CONFIG: SINIX: Update from Gerald Rinske of Siemens Business
+			Services VAS.
+	MAKEMAP: Use a better heuristic for detecting GDBM.
+	CONTRIB: expn.pl: Updated version from the author, David Muir Sharnoff.
+	OP.ME: Document the F=i mailer flag.  Problem noted by Per Hedeland of
+			Ericsson.
+
+8.8.7/8.8.7	97/08/03
+	If using Berkeley DB on systems without O_EXLOCK (open a file with
+		an exclusive lock already set -- i.e., almost all systems
+		except 4.4-BSD derived systems), the initial attempt at
+		rebuilding aliases file if the database didn't already
+		exist would fail.  Patch from Raymund Will of LST Software
+		GmbH.
+	Bogus incoming SMTP commands would reset the SMTP conversation.
+		Problem noted by Fredrik Jönsson of the Royal Institute
+		of Technology, Stockholm.
+	Since TCP Wrappers includes setenv(), unsetenv(), and putenv(),
+		some environments could give "multiple definitions" for these
+		routines during compilation.  If using TCP Wrappers, assume
+		that these routines are included as though they were in the
+		C library.  Patch from Robert La Ferla.
+	When a NEWDB database map was rebuilt at the same time it was being
+		used by a queue run, the maps could be left locked for the
+		duration of the queue run, causing other processes to hang.
+		Problem noted by Kendall Libby of Shore.NET.
+	In some cases, NoRecipientAction=add-bcc was being ignored, so the
+		mail was passed on without any recipient header.  This could
+		cause problems downstream.  Problem noted by Xander Jansen
+		of SURFnet ExpertiseCentrum.
+	Give error when GDBM is used with sendmail.  GDBM's locking and
+		linking of the .dir and .pag files interferes with sendmail's
+		locking and security checks.  Problems noted by Fyodor
+		Yarochkin of the Kyrgyz Republic FreeNet.
+	Don't fsync qf files if SuperSafe option is not set.
+	Avoid extra calls to gethostbyname for addresses for which a
+		gethostbyaddr found no value.  Also, ignore any returns
+		from gethostbyaddr that look like a dotted quad.
+	If PTR lookup fails when looking up an SMTP peer, don't tag it as
+		"may be forged", since at the network level we pretty much
+		have to assume that the information is good.
+	In some cases, errors during an SMTP session could leave files
+		open or locked.
+	Better handling of missing file descriptors (0, 1, 2) on startup.
+	Better handling of non-setuid binaries -- avoids certain obnoxious
+		errors during testing.
+	Errors in file locking of NEWDB maps had the incorrect file name
+		printed in the error message.
+	If the AllowBogusHELO option were set and an EHLO with a bad or
+		missing parameter were issued, the EHLO behaved like a HELO.
+	Load limiting never kicked in for incoming SMTP transactions if the
+		DeliverMode=background and any recipient was an alias or
+		had a .forward file.  From Nik Conwell of Boston University.
+	On some non-Posix systems, the decision of whether chown(2) permits
+		file giveaway was undefined.  From Tetsu Ushijima of the
+		Tokyo Institute of Technology.
+	Fix race condition that could cause the body of a message to be
+		lost (so only the header was delivered).  This only occurs
+		on systems that do not use flock(2), and only when a queue
+		runner runs during a critical section in another message
+		delivery.  Based on a patch from Steve Schweinhart of
+		Results Computing.
+	If a qf file was found in a mail queue directory that had a problem
+		(wrong ownership, bad format, etc.) and the file name was
+		exactly MAXQFNAME bytes long, then instead of being tried
+		once, it would be tried on every queue run.  Problem noted
+		by Bryan Costales of Mercury Mail.
+	If the system supports an st_gen field in the status structure,
+		include it when reporting that a file has changed after open.
+		This adds a new compile flag, HAS_ST_GEN (0/1 option).
+		This out to be checked as well as reported, since it is
+		theoretically possible for an attacker to remove a file after
+		it is opened and replace it with another file that has the
+		same i-number, but some filesystems (notably AFS) return
+		garbage in this field, and hence always look like the file
+		has changed.  As a practical matter this is not a security
+		problem, since the files can be neither hard nor soft links,
+		and on no filesystem (that I am aware of) is it possible to
+		have two files on the same filesystem with the same i-number
+		simultaneously.
+	Delete the root Makefile from the distribution -- it is only for
+		use internally, and does not work at customer sites.
+	Fix botch that caused the second MAIL FROM: command in a single
+		transaction to clear the entire transaction.  Problem
+		noted by John Kennedy of Cal State University, Chico.
+	Work properly on machines that have _PATH_VARTMP defined without
+		a trailing slash.  (And a pox on vendors that decide to
+		ignore the established conventions!)  Problem noted by
+		Gregory Neil Shapiro of WPI.
+	Internal changes to make it easier to add another protocol family
+		(intended for IPv6).  Patches are from John Kennedy of
+		CSU Chico.
+	In certain cases, 7->8 bit MIME decoding of Base64 text could leave
+		an extra space at the beginning of some lines.  Problem
+		noted by Charles Karney of Princeton University; fix based
+		on a patch from Christophe Wolfhugel.
+	Portability:
+		Allow _PATH_VENDOR_CF to be set in Makefile for consistency
+			with the _Sendmail_ book, 2nd edition.  Note that
+			the book is actually wrong: _PATH_SENDMAILCF should
+			be used instead.
+		AIX 3.x: Include <sys/select.h>.  Patch from Gene Rackow
+			of Argonne National Laboratory.
+		OpenBSD from from Paul DuBois of the University of Wisconsin.
+		RISC/os 4.0 from Paul DuBois of the University of Wisconsin.
+		SunOS: Include <memory.h> to fix warning from util.c.  From
+			James Aldridge of EUnet Ltd.
+		Solaris: Change STDIR (location of status file) to /etc/mail
+			in Makefiles.
+		Linux, Dynix, UNICOS: Remove -DNDBM and -lgdbm from
+			Makefiles.  Use NEWDB on Linux instead.
+		NCR MP-RAS 3.x with STREAMware TCP/IP: SIOCGIFNUM ioctl
+			exists but behaves differently than other OSes.
+			Add SIOCGIFNUM_IS_BROKEN compile flag to get
+			around the problem.  Problem noted by Tom Moore of
+			NCR Corp.
+		HP-UX 9.x: fix compile warnings for old select API.  Problem
+			noted by Tom Smith of Digital Equipment Corp.
+		UnixWare 2.x: compile warnings on offsetof macro.  Problem
+			noted by Tom Good of the Community Access Information
+			Resource Network
+		SCO 4.2: compile problems caused by a change in the type of
+			the "length" parameters passed to accept, getpeername,
+			getsockname, and getsockopt.  Adds new compile flags
+			SOCKADDR_SIZE_T and SOCKOPT_SIZE_T.  Problem reported
+			by Tom Good of St. Vincent's North Richmond Community
+			Mental Health Center Residential Services.
+		AIX 4: Use size_t for SOCKADDR_SIZE_T and SOCKOPT_SIZE_T.
+			Suggested by Brett Hogden of Rochester Gas & Electric
+			Corp.
+		Linux: avoid compile problem for versions of <setjmp.h> that
+			#define both setjmp and longjmp.  Problem pointed out
+			by J.R. Oldroyd of TerraNet.
+		CONFIG: SCO UnixWare 2.1: Support for OSTYPE(sco-uw-2.1)
+			from Christopher Durham of SCO.
+		CONFIG: NEXTSTEP: define confCW_FILE to
+			/etc/sendmail/sendmail.cw to match the usual
+			configuration.  Patch from Dennis Glatting of
+			PlainTalk.
+	CONFIG: MAILER(fax) called a program that hasn't existed for a long
+		time.  Convert to use the HylaFAX 4.0 conventions.  Suggested
+		by Harry Styron.
+	CONFIG: Improve sample anti-spam rulesets in cf/cf/knecht.mc.  These
+		are the rulesets in use on sendmail.org.
+	MAKEMAP: give error on GDBM files.
+	MAIL.LOCAL: Make error messages a bit more explicit, for example,
+		telling more details on what actually changed when "file
+		changed after open".
+	CONTRIB: etrn.pl: Ignore comments in Fw files.  Support multiple Fw
+		files.
+	CONTRIB: passwd-to-alias.pl: Handle 8 bit characters and '-'.
+	NEW FILES:
+		src/Makefiles/Makefile.OpenBSD
+		src/Makefiles/Makefile.RISCos.4_0
+		test/t_exclopen.c
+		cf/ostype/sco-uw-2.1.m4
+	DELETED FILES:
+		Makefile
+
+8.8.6/8.8.6	97/06/14
+	    *************************************************************
+	    * The extensive assistance of Gregory Neil Shapiro of WPI	*
+	    * in preparing this release is gratefully appreciated.	*
+	    * Sun Microsystems has also provided resources toward	*
+	    * continued sendmail development.				*
+	    *************************************************************
+	SECURITY: A few systems allow an open with the O_EXCL|O_CREAT open
+		mode bits set to create a file that is a symbolic link that
+		points nowhere.  This makes it possible to create a root
+		owned file in an arbitrary directory by inserting the symlink
+		into a writable directory after the initial lstat(2) check
+		determined that the file did not exist.  The only verified
+		example of a system having these odd semantics for O_EXCL
+		and symbolic links was HP-UX prior to version 9.07.  Most
+		systems do not have the problem, since a exclusive create
+		of a file disallows symbolic links.  Systems that have been
+		verified to NOT have the problem include AIX 3.x, *BSD,
+		DEC OSF/1, HP-UX 9.07 and higher, Linux, SunOS, Solaris,
+		and Ultrix.  This is a potential exposure on systems that
+		have this bug and which do not have a MAILER-DAEMON alias
+		pointing at a legitimate account, since this will cause old
+		mail to be dropped in /var/tmp/dead.letter.
+	SECURITY: Problems can occur on poorly managed systems, specifically,
+		if maps or alias files are in world writable directories.
+		If your system has alias maps in writable directories, it
+		is potentially possible for an attacker to replace the .db
+		(or .dir and .pag) files by symbolic links pointing at
+		another database; this can be used either to expose
+		information (e.g., by pointing an alias file at /etc/spwd.db
+		and probing for accounts), or as a denial-of-service attack
+		(by trashing the password database).  The fix disallows
+		symbolic links entirely when rebuilding alias files or on
+		maps that are in writable directories, and always warns on
+		writable directories; 8.9 will probably consider writable
+		directories to be fatal errors.  This does not represent an
+		exposure on systems that have alias files in unwritable
+		system directories.
+	SECURITY: disallow .forward or :include: files that are links (hard
+		or soft) if the parent directory (or any directory in the
+		path) is writable by anyone other than the owner.  This is
+		similar to the previous case for user files.  This change
+		should not affect most systems, but is necessary to prevent
+		an attacker who can write the directory from pointing such
+		files at other files that are readable only by the owner.
+	SECURITY: Tighten safechown rules: many systems will say that they
+		have a safe (restricted to root) chown even on files that
+		are mounted from another system that allows owners to give
+		away files.  The new rules are very strict, trusting file
+		ownership only in those few cases where the system has
+		been verified to be at least as paranoid as necessary.
+		However, it is possible to relax the rules to partially
+		trust the ownership if the directory path is not world or
+		group writable.  This might allow someone who has a legitimate
+		:include: file (referenced directly from /etc/aliases) to
+		become another non-root user if the :include: file is in a
+		non-writable directory on an NFS-mounted filesystem where
+		the local system says that giveaway is denied but it is
+		actually permitted.  I believe this to be a very small set
+		of cases.  If in doubt, do not point :include: aliases at
+		NFS-mounted filesystems.
+	SECURITY: When setting a numeric group id using the RunAsUser option
+		(e.g., "O RunAsUser=10:20", the group id would not be set.
+		Implicit group ids (e.g., "O RunAsUser=mailnull") or alpha
+		group ids (e.g., "O RunAsUser=mailuser:mailgrp") worked fine.
+		The user id was still set properly.  Problem noted by Uli
+		Pralle of the Technical University of Berlin.
+	Save the initial gid set for use when checking for if the
+		PrivacyOptions=restrictmailq option is set.  Problem reported
+		by Wolfgang Ley of DFN-CERT.
+	Make 55x reply codes to the SMTP DATA-"." be non-sticky (i.e., a
+		failure on one message won't affect future messages to the
+		same host).
+	IP source route printing had an "off by one" error that would
+		affect any options that came after the route option.  Patch
+		from Theo de Raadt.
+	The "Message is too large" error didn't successfully bounce the error
+		back to the sender.  Problem reported by Stephen More of
+		PSI; patch from Gregory Neil Shapiro of WPI.
+	Change SMTP status code 553 to map into Extended code 5.1.0 (instead
+		of 5.1.3); it apparently gets used in multiple ways.
+		Suggested by John Myers of Portola Communications.
+	Fix possible extra null byte generated during collection if errors
+		occur at the beginning of the stream.  Patch contributed by
+		Andrey A. Chernov and Gregory Neil Shapiro.
+	Code changes to avoid possible reentrant call of malloc/free within
+		a signal handler.  Problem noted by John Beck of Sun
+		Microsystems.
+	Move map initialization to be earlier so that check_relay ruleset
+		will have the latest version of the map data.  Problem noted
+		by Paul Forgey of Metainfo; patch from Gregory Neil Shapiro.
+	If there are fatal errors during the collection phase (e.g., message
+		too large) don't send the bogus message.
+	Avoid "cannot open xfAAA00000" messages when sending to aliases that
+		have errors and have owner- aliases.  Problem noted by Michael
+		Barber of MTU; fix from Gregory Neil Shapiro of WPI.
+	Avoid null pointer dereference on illegal Boundary= parameters in
+		multipart/mixed Content-Type: header.  Problem noted by
+		Richard Muirden of RMIT University.
+	Always print error messages during newaliases (-bi) even if the
+		ErrorMode is not set to "print".  Fix from Gregory Neil
+		Shapiro.
+	Test mode could core dump if you did a /map lookup in an optional map
+		that could not be opened.  Based on a fix from John Beck of
+		Sun Microsystems.
+	If DNS is misconfigured so that the last MX record tried points to
+		a host that does not have an A record, but other MX records
+		pointed to something reasonable, don't bounce the message
+		with a "host unknown" error.  Note that this should really
+		be fixed in the zone file for the domain.  Problem noted by
+		Joe Rhett of Navigist, Inc.
+	If a map fails (e.g., DNS times out) on all recipient addresses, mark
+		the message as having been tried; otherwise the next queue
+		run will not realize that this is a second attempt and will
+		retry immediately.  Problem noted by Bryan Costales of
+		Mercury Mail.
+	If the clock is set backwards, and a MinQueueAge is set, no jobs
+		will be run until the later setting of the clock is reached.
+		"Problem" (I use the term loosely) noted by Eric Hagberg of
+		Morgan Stanley.
+	If the load average rises above the cutoff threshold (above which
+		sendmail will not process the queue at all) during a queue
+		run, abort the queue run immediately.  Problem noted by
+		Bryan Costales of Mercury Mail.
+	The variable queue processing algorithm (based on the message size,
+		number of recipients, message precedence, and job age) was
+		non-functional -- either the entire queue was processed or
+		none of the queue was processed.  The updated algorithm
+		does no queue run if a single recipient zero size job will
+		not be run.
+	If there is a fatal ("panic") message that will cause sendmail to
+		die immediately, never hold the error message for future
+		printing.
+	Force ErrorMode=print in -bt mode so that all errors are printed
+		regardless of the setting of the ErrorMode option in the
+		configuration file.  Patch from Gregory Neil Shapiro.
+	New compile flag HASSTRERROR says that this OS has the strerror(3)
+		routine available in one of the libraries.  Use it in conf.h.
+	The -m (match only) flag now works on host class maps.
+	If class hash or btree maps are rebuilt, sendmail will now detect
+		this and reopen the map.  Previously, they could give
+		erroneous results during a single message processing
+		(but would recover when the next message was received).
+	Don't delete zero length queue files when doing queue runs until the
+		files are at least ten minutes old.  This avoids a potential
+		race condition: the creator creates the qf file, getting back
+		a file descriptor.  The queue runner locks it and deletes it
+		because it is zero length.  The creator then writes the
+		descriptor that is now for a disconnected file, and the
+		job goes away.  Based on a suggestion by Bryan Costales.
+	When determining the "validated" host name ($_ macro), do a forward
+		(A) DNS lookup on the result of the PTR lookup and compare
+		results.  If they differ or if the PTR lookup fails, tag the
+		address as "may be forged".
+	Log null connections (i.e., hosts that connect but do not do any
+		substantive activity on the connection before disconnecting;
+		"substantive" is defined to be MAIL, EXPN, VRFY, or ETRN.
+	Always permit "writes" to /dev/null regardless of the link count.
+		This is safe because /dev/null is special cased, and no open
+		or write is ever actually attempted.  Patch from Villy Kruse
+		of TwinCom.
+	If a message cannot be sent because of a 552 (exceeded storage
+		allocation) response to the MAIL FROM:<>, and a SIZE= parameter
+		was given, don't return the body in the bounce, since there
+		is a very good chance that the message will double-bounce.
+	Fix possible line truncation if a quoted-printable had an =00 escape
+		in the body.  Problem noted by Charles Karney of the Princeton
+		Plasma Physics Laboratory.
+	Notify flags (e.g., -NSUCCESS) were lost on user+detail addresses.
+		Problem noted by Kari Hurtta of the Finnish Meteorological
+		Institute.
+	The MaxDaemonChildren option wasn't applying to queue runs as
+		documented.  Note that this increases the potential denial
+		of service problems with this option: an attacker can
+		connect many times, and thereby lock out queue runs as well
+		as incoming connections.  If you use this option, you should
+		run the "sendmail -bd" and "sendmail -q30m" jobs separately
+		to avoid this attack.  Failure to limit noted by Matthew
+		Dillon of BEST Internet Communications.
+	Always give a message in newaliases if alias files cannot be
+		opened instead of failing silently.  Suggested by Gregory
+		Neil Shapiro.  This change makes the code match the O'Reilly
+		book (2nd edition).
+	Some older versions of the resolver could return with h_errno == -1
+		if no name server could be reached, causing mail to bounce
+		instead of queueing.  Treat this like TRY_AGAIN.  Fix from
+		John Beck of SunSoft.
+	If a :include: file is owned by a user that does not have an entry
+		in the passwd file, sendmail could dereference a null pointer.
+		Problem noted by Satish Mynam of Sun Microsystems.
+	Take precautions to make sure that the SMTP protocol cannot get out
+		of sync if (for example) an alias file cannot be opened.
+	Fix a possible race condition that can cause a SIGALRM to come in
+		immediately after a SIGHUP, causing the new sendmail to die.
+	Avoid possible hang on SVr3 systems when doing child reaping.  Patch
+		from Villy Kruse of TwinCom.
+	Ignore improperly formatted SMTP reply codes.  Previously these were
+		partially processed, which could cause confusing error
+		returns.
+	Fix possible bogus pointer dereference when doing ldapx map lookups
+		on some architectures.
+	Portability:
+		A/UX: from Jim Jagielski of NASA/GSFC.
+		glibc: SOCK_STREAM was changed from a #define to an enum,
+			thus breaking #ifdef SOCK_STREAM.  Only option seems
+			to be to assume SOCK_STREAM if __GNU_LIBRARY__ is
+			defined.  Problem reported by A Sun of the University
+			of Washington.
+		Solaris: use SIOCGIFNUM to get the number of interfaces on
+			the system rather than guessing at compile time.
+			Patch contributed by John Beck of Sun Microsystems.
+		Intel Paragon: from Wendy Lin of Purdue University.
+		GNU Hurd: from Miles Bader of the GNU project.
+		RISC/os 4.50 from Harlan Stenn of PFCS Corporation.
+		ISC Unix: wait never returns if SIGCLD signals are blocked.
+			Unfortunately releasing them opens a race condition,
+			but there appears to be no fix for this.  Patch from
+			Gregory Neil Shapiro.
+		BIND 8.1 for IPv6 compatibility from John Kennedy.
+		Solaris: a bug in strcasecmp caused characters with the
+			high order bit set to apparently randomly match
+			letters -- for example, $| (0233) matches "i" and "I".
+			Problem noted by John Gregson of the University of
+			Cambridge.
+		IRIX 6.x: make Makefile.IRIX.6.2 apply to all 6.x.  From
+			Kari Hurtta.
+		IRIX 6.x: Create Makefiles for systems that claim to be
+			IRIX64 but are 6.2 or higher (so use the regular
+			IRIX Makefile).
+		IRIX 6.x: Fix load average computation on 64 bit kernels.
+			Problem noted by Eric Hagberg of Morgan Stanley.
+	CONFIG: Some canonification was still done for UUCP-like addresses
+		even if FEATURE(nocanonify) was set.  Problem pointed out by
+		Brian Candler.
+	CONFIG: In some cases UUCP mailers wouldn't properly recognize all
+		local names as local.  Problem noted by Jeff Polk of BSDI;
+		fix provided by Gregory Neil Shapiro.
+	CONFIG: The "local:user" syntax entries in mailertables and other
+		"mailer:user" syntax locations returned an incorrect value
+		for the $h macro.  Problem noted by Gregory Neil Shapiro.
+	CONFIG: Retain "+detail" information when forwarding mail to a
+		MAIL_HUB, LUSER_RELAY, or LOCAL_RELAY.  Patch from Philip
+		Guenther of Gustavus Adolphus College.
+	CONFIG: Make sure user+detail works for FEATURE(virtusertable);
+		rules are the same as for aliasing.  Based on a patch from
+		Gregory Neil Shapiro.
+	CONFIG: Break up parsing rules into several pieces; this should
+		have no functional change in this release, but makes it
+		possible to have better anti-spam rulesets in the future.
+	CONFIG: Disallow double dots in host names to avoid having the
+		HostStatusDirectory store status under the wrong name.
+		In some cases this can be used as a denial-of-service attack.
+		Problem noted by Ron Jarrell of Virginia Tech, patch from
+		Gregory Neil Shapiro.
+	CONFIG: Don't use F=m (multiple recipients per invocation) for
+		MAILER(procmail), but do pass F=Pn9 (include Return-Path:,
+		don't include From_, and convert to 8-bit).  Suggestions
+		from Kimmo Suominen and Roderick Schertler.
+	CONFIG: Domains under $=M (specified with MASQUERADE_DOMAIN) where
+		being masqueraded as though FEATURE(masquerade_entire_domain)
+		was specified, even when it wasn't.
+	MAIL.LOCAL: Solaris 2.6 has snprintf.  From John Beck of SunSoft.
+	MAIL.LOCAL: SECURITY: check to make sure that an attacker doesn't
+		"slip in" a symbolic link between the lstat(2) call and the
+		exclusive open.  This is only a problem on System V derived
+		systems that allow an exclusive create on files that are
+		symbolic links pointing nowhere.
+	MAIL.LOCAL: If the final mailbox close() failed, the user id was
+		not reset back to root, which on some systems would cause
+		later mailboxes to fail.  Also, any partial message would
+		not be truncated, which could result in repeated deliveries.
+		Problem noted by Bruce Evans via Peter Wemm (FreeBSD
+		developers).
+	MAKEMAP: Handle cases where O_EXLOCK is #defined to be 0.  A similar
+		change to the sendmail map code was made in 8.8.3.  Problem
+		noted by Gregory Neil Shapiro.
+	MAKEMAP: Give warnings on file problems such as map files that are
+		symbolic links; although makemap is not setuid root, it is
+		often run as root and hence has the potential for the same
+		sorts of problems as alias rebuilds.
+	MAKEMAP: Change compilation so that it will link properly on
+		NEXTSTEP.
+	CONTRIB: etrn.pl: search for Cw as well as Fw lines in sendmail.cf.
+		Accept an optional list of arguments following the server
+		name for the ETRN arguments to use (instead of $=w).  Other
+		miscellaneous bug fixes.  From Christian von Roques via
+		John Beck of Sun Microsystems.
+	CONTRIB: Add passwd-to-alias.pl, contributed by Kari Hurtta.  This
+		Perl script converts GECOS information in the /etc/passwd
+		file into aliases, allowing for faster access to full name
+		lookups; it is also clever about adding aliases (to root)
+		for system accounts.
+	NEW FILES:
+		src/safefile.c
+		cf/ostype/gnuhurd.m4
+		cf/ostype/irix6.m4
+		contrib/passwd-to-alias.pl
+		src/Makefiles/Makefile.IRIX64.6.1
+		src/Makefiles/Makefile.IRIX64.6.x
+	RENAMED FILES:
+		src/Makefiles/Makefile.IRIX.6.2 =>	Makefile.IRIX.6.x
+		src/Makefiles/Makefile.IRIX64 =>	Makefile.IRIX64.6.0
+
+8.8.5/8.8.5	97/01/21
+	SECURITY: Clear out group list during startup.  Without this, sendmail
+		will continue to run with the group permissions of the caller,
+		even if RunAsUser is specified.
+	SECURITY: Make purgestat (-bH) be root-only.  This is not in response
+		to any known attack, but it's best to be conservative.
+		Suggested by Peter Wemm of DIALix.
+	SECURITY: Fix buffer overrun problem in MIME code that has possible
+		security implications.  Patch from Alex Garthwaite of the
+		University of Pennsylvania.
+	Use of a -f flag with a phrase attached (e.g., "-f 'Full Name <addr>'")
+		would truncate the address after "Full".  Although the -f
+		syntax is incorrect (since it is in the envelope, it
+		shouldn't have comments and full names), the failure mode
+		was unnecessarily awful.
+	Fix a possible null pointer dereference when converting 8-bit data
+		to a 7-bit format.  Problem noted by Jim Hutchins of
+		Sandia National Labs and David James of British Telecom.
+	Clear out stale state that affected F=9 on SMTP mailers in queue
+		runs.  Although this really shouldn't be used (F=9 is for
+		final delivery only, and using it on an SMTP mailer makes
+		it possible for a message to be converted from 8->7->8->7
+		bits several times), it shouldn't have failed with a syserr.
+		Problem noted by Eric Hagberg of Morgan Stanley.
+	_Really_ fix the multiple :maildrop code in the user database
+		module.  Patch from Roy Mongiovi of Georgia Tech.
+	Let F lines in the configuration file actually read root-only
+		files if the configuration file is safe.  Based on a
+		patch from Keith Reynolds of SCO.
+	ETRN followed by QUIT would hold the connection open until the queue
+		run completed.  Problem noted by Truck Lewis of TDK
+		Semiconductor Corp.
+	It turns out that despite the documentation, the TCP wrappers library
+		does _not_ log rejected connections.  Do the logging ourselves.
+		Problem noted by Fletcher Mattox of the University of Texas
+		at Austin.
+	If sendmail finds a qf file in its queue directory that is an unknown
+		version (e.g., when backing out to an old version), the
+		error is reported on every queue run.  Change it to only
+		give the error once (and rename the qf => Qf).  Patch from
+		William A. Gianopoulos of Raytheon Company.
+	Start a new session when doing background delivery; currently it
+		ignored signals but didn't start a new signal, that caused
+		some problems if a background process tried to send mail
+		under certain circumstances.  Problem noted by Eric Hagberg
+		of Morgan Stanley; fix from Kari Hurtta.
+	Simplify test for skipping a queue run to just check if the current
+		load average is >= the queueing load average.  Previously
+		the check factored in some other parameters that caused it
+		to essentially never skip the queue run.  Patch from Bryan
+		Costales.
+	If the SMTP server is running in "nullserver" mode (that is, it is
+		rejecting all commands), start sleeping after MAXBADCOMMAND
+		(25) commands; this helps prevent a bad guy from putting
+		you into a tight loop as a denial-of-service attack.  Based
+		on an e-mail conversation with Brad Knowles of AOL.
+	Slow down when too many "light weight" commands have been issued;
+		this helps prevent a class of denial-of-service attacks.
+		The current values and defaults are:
+		    MAXNOOPCOMMANDS	20	NOOP, VERB, ONEX, XUSR
+		    MAXHELOCOMMANDS	3	HELO, EHLO
+		    MAXVRFYCOMMANDS	6	VRFY, EXPN
+		    MAXETRNCOMMANDS	8	ETRN
+		These will probably be configurable in a future release.
+	On systems that have uid_t typedefed to be an unsigned short, programs
+		that had the F=S flag and no U= equate would be invoked with
+		the real uid set to 65535 rather than being left unchanged.
+	In some cases, NOTIFY=NEVER was not being honored.  Problem noted
+		by Steve Hubert of the University of Washington, Seattle.
+	Mail that was Quoted-Printable encoded and had a soft line break on
+		the last line (i.e., an incomplete continuation) had the last
+		line dropped.  Since this appears to be illegal it isn't
+		clear what to do with it, but flushing the last line seems
+		to be a better "fail soft" approach.  Based on a patch from
+		Eric Hagberg.
+	If AllowBogusHELO and PrivacyOptions=needmailhelo are both set, a
+		bogus HELO command still causes the "Polite people say HELO
+		first" error message.  Problem pointed out by Chris Thomas
+		of UCLA; patch from John Beck of SunSoft.
+	Handle "sendmail -bp -qSfoobar" properly if restrictqrun is set
+		 in PrivacyFlags.  The -q shouldn't turn this command off.
+		 Problem noted by Murray Kucherawy of Pacific Bell Internet;
+		 based on a patch from Gregory Neil Shapiro of WPI.
+	Don't consider SMTP reply codes 452 or 552 (exceeded storage allocation)
+		in a DATA transaction to be sticky; these can occur because
+		a message is too large, and smaller messages should still go
+		through.  Problem noted by Matt Dillon of Best Internet
+		Communications.
+	In some cases bounces were saved in /var/tmp/dead.letter even if they
+		had been successfully delivered to the envelope sender.
+		Problem noted Eric Hagberg of Morgan Stanley; solution from
+		Gregory Neil Shapiro of WPI.
+	Give better diagnostics on long alias lines.  Based on code contributed
+		by Patrick Gosling of the University of Cambridge.
+	Increase the number of virtual interfaces that will be probed for
+		alternate names.  Problem noted by Amy Rich of Shore.Net.
+	PORTABILITY:
+		UXP/DS V20L10 for Fujitsu DS/90: Makefile patches from
+			Toshiaki Nomura of Fujitsu Limited.
+		SunOS with LDAP support: compile problems with struct timeval.
+			Patch from Nick Cuccia of TCSI Corporation.
+		SCO: from Keith Reynolds of SCO.
+		Solaris: kstat load average computation wasn't being used.
+			Fixes from Michael Ju. Tokarev of Telecom Service, JSC
+			(Moscow).
+		OpenBSD: from Jason Downs of teeny.org.
+		Altos System V: from Tim Rice.
+		Solaris 2.5: from Alan Perry of SunSoft.
+		Solaris 2.6: from John Beck of SunSoft.
+		Harris Nighthawk PowerUX (mh6000 box): from Bob Miorelli
+			of Pratt & Whitney <miorelli@pweh.com>.
+	CONFIG: It seems that I hadn't gotten the Received: line syntax
+		_just_right_ yet.  Tweak it again.  I'll omit the names
+		of the "contributors" (quantity two) in this one case.
+		As of now, NO MORE DISCUSSION about the syntax of the
+		Received: line.
+	CONFIG: Although FEATURE(nullclient) uses EXPOSED_USER (class $=E),
+		it never inserts that class into the output file.  Fix it
+		so it will honor EXPOSED_USER but will _not_ include root
+		automatically in this class.  Problem noted by Ronan KERYELL
+		of Centre de Recherche en Informatique de l'École Nationale
+		Supérieure des Mines de Paris (CRI-ENSMP).
+	CONFIG: Clean up handling of "local:" syntax in relay specifications
+		such as LUSER_RELAY.  This change permits the following
+		syntaxes:  ``local:'' will send to the same user on the
+		local machine (e.g., in a mailertable entry for "host",
+		``local:'' will cause an address addressed to user@host to
+		go to user on the local machone).  ``local:user'' will send
+		to the named user on the local machine.  ``local:user@host''
+		is equivalent to ``local:user'' (the host is ignored).  In
+		all cases, the original user@host is passed in $@ (i.e., the
+		detail information).  Inspired by a report from Michael Fuhr.
+	CONFIG: Strip quotes from the first word of an "error:" host
+		indication.  This lets you set (for example) the LUSER_RELAY
+		to be ``error:\"5.1.1\" Your Message Here''.  Note the use
+		of the \" so that the resulting string is properly quoted.
+		Problem noted by Gregory Neil Shapiro of WPI.
+	OP.ME: documentation was inconsistent about whether sendmail did a
+		NOOP or a RSET to probe the connection (it does a RSET).
+		Inconsistency noted by Deeran Peethamparam.
+	OP.ME: insert additional blank pages so it will print properly on
+		a duplex printer.  From Matthew Black of Cal State University,
+		Long Beach.
+
+8.8.4/8.8.4	96/12/02
+	SECURITY: under some circumstances, an attacker could get additional
+		permissions by hard linking to files that were group
+		writable by the attacker.  The solution is to disallow any
+		files that have hard links -- this will affect .forward,
+		:include:, and output files.  Problem noted by Terry
+		Kyriacopoulos of Interlog Internet Services.  As a
+		workaround, set UnsafeGroupWrites -- always a good idea.
+	SECURITY: the TryNullMXList (w) option should not be safe -- if it
+		is, it is possible to do a denial-of-service attack on
+		MX hosts that rely on the use of the null MX list.  There
+		is no danger if you have this option turned off (the default).
+		Problem noted by Dan Bernstein.  Also, make the DontInitGroups
+		unsafe.  I know of no specific attack against this, although
+		a denial-of-service attack is probably possible, but in theory
+		you should not be able to safely tweak anything that affects
+		the permissions that are used when mail is delivered.
+	Purgestat could go into an infinite loop if one of the host status
+		directories somehow became empty.  Problem noted by Roy
+		Mongiovi of Georgia Tech.
+	Processes got "lost" when counting children due to a race condition.
+		This caused "proc_list_probe: lost pid" messages to be logged.
+		Problem noted by several people.
+	On systems with System V SIGCLD child signal semantics (notably AIX
+		and HP-UX), mail transactions would print the message "451
+		SMTP-MAIL: lost child: No child processes".  Problem noted
+		by several people.
+	Miscellaneous compiler warnings on picky compilers (or when setting
+		gcc to high warning levels).  From Tom Moore of NCR Corp.
+	SMTP protocol errors, and most errors on MAIL FROM: lines should
+		not be persistent between runs, since they are based on the
+		message rather than the host.  Problem noted by Matt Dillon
+		of Best Internet Communications.
+	The F=7 flag was ignored on SMTP mailers.  Problem noted by Tom Moore
+		of NCR (a.k.a., AT&T Global Information Solutions).
+	Avoid the possibility of having a child daemon run to completion
+		(including closing the SMTP socket) before the parent has
+		had a chance to close the socket; this can cause the parent
+		to hang for a long time waiting for the socket to drain.
+		Patch from Don Lewis of TDK Semiconductor.
+	If the fork() failed in a queue run, the queue runners would not be
+		rescheduled (so queue runs would stop).  Patch from Don Lewis.
+	Some error conditions in ETRN could cause output without an SMTP
+		status code.  Problem noted by Don Lewis.
+	Multiple :maildrop addresses in the user database didn't work properly.
+		Patch from Roy Mongiovi of Georgia Tech.
+	Add ".db" automatically onto any user database spec that does not
+		already have it; this is for consistency with makemap, the
+		K line, and the documentation.  Inconsistency pointed out
+		by Roy Mongiovi.
+	Allow sendmail to be properly called in nohup mode.  Patch from
+		Kyle Jones of UUNET.
+	Change ETRN to ignore but still update host status files; previously
+		it would ignore them and not save the updated status, which
+		caused stale information to be maintained.  Based on a patch
+		from Christopher Davis of Kapor Enterprises Inc.  Also, have
+		ETRN ignore the MinQueueAge option.
+	Patch long term host status to recover more gracefully from an empty
+		host status file condition.  Patch from NAKAMURA Motonori
+		of Kyoto University.
+	Several patches to signal handling code to fix potential race
+		conditions from Don Lewis.
+	Make it possible to compile with -DDAEMON=0 (previously it had some
+		compile errors).  This turns DAEMON, QUEUE, and SMTP into
+		0/1 compilation flags.  Note that DAEMON is an obsolete
+		compile flag; use NETINET instead.  Solution based on a
+		patch from Bryan Costales.
+	PORTABILITY FIXES:
+		AIX4: getpwnam() and getpwuid() do a sequential scan of the
+			/etc/security/passwd file when called as root.  This
+			is very slow on some systems.  To speed it up, use the
+			(undocumented) _getpw{nam,uid}_shadow() routines.
+			Patch from Chris Thomas of UCLA/OAC Systems Group.
+		SCO 5.x: include -lprot in the Makefile.  Patch from Bill
+			Glicker of Burrelle's Information Service.
+		NEWS-OS 4.x: need a definition for MODE_T to compile.  Patch
+			from Makoto MATSUSHITA of Osaka University.
+		SunOS 4.0.3: compile problems.  Patches from Andrew Cole of
+			Leeds University and SASABE Tetsuro of the University
+			of Tokyo.
+		DG/UX 5.4.4.11 from Brian J. Murrell of InterLinx Support
+			Services, Inc.
+		Domain/OS from Don (Truck) Lewis of TDK Semiconductor Corp.
+			I believe this to have only been a problem if you
+			compiled with -DUSE_VENDOR_CF_PATH -- another reason
+			to stick with /etc/sendmail.cf as your One True Path.
+		Digital UNIX (OSF/1 on Alpha) load average computation from
+			Martin Laubach of the Technischen Universität Wien.
+	CONFIG: change default Received: line to be multiple lines rather
+		than one long one.  By popular demand.
+	MAIL.LOCAL: warnings weren't being logged on some systems.  Patch
+		from Jerome Berkman of U.C. Berkeley.
+	MAKEMAP: be sure to zero hinfo to avoid cruft that can cause runs
+		to take a very long time.  Problem noted by Yoshiro YONEYA
+		of NTT Software Corporation.
+	CONTRIB: add etrn.pl, contributed by John Beck.
+	NEW FILES:
+		contrib/etrn.pl
+
+8.8.3/8.8.3	96/11/17
+	SECURITY: it was possible to get a root shell by lying to sendmail
+		about argv[0] and then sending it a signal.  Problem noted
+		by Leshka Zakharoff <leshka@leshka.chuvashia.su> on the
+		best-of-security list.
+	Log sendmail binary version number in "Warning: .cf version level
+		(%d) exceeds program functionality (%d) message" -- this
+		should make it clearer to people that they are running
+		the wrong binary.
+	Fix a problem that occurs when you open an SMTP connection and then
+		do one or more ETRN commands followed by a MAIL command; at
+		the end of the DATA phase sendmail would incorrectly report
+		"451 SMTP-MAIL: lost child: No child processes".  Problem
+		noted by Eric Bishop of Virginia Tech.
+	When doing text-based host canonification (typically /etc/hosts
+		lookup), a null host name would match any /etc/hosts entry
+		with space at the end of the line.  Problem noted by Steve
+		Hubert of the University of Washington, Seattle.
+	7 to 8 bit BASE64 MIME conversions could duplicate bits of text.
+		Problem reported by Tom Smith of Digital Equipment Corp.
+	Increase the size of the DNS answer buffer -- the standard UDP packet
+		size PACKETSZ (512) is not sufficient for some nameserver
+		answers containing very many resource records.  The resolver
+		may also switch to TCP and retry if it detects UDP packet
+		overflow.  Also, allow for the fact that the resolver
+		routines res_query and res_search return the size of the
+		*un*truncated answer in case the supplied answer buffer it
+		not big enough to accommodate the entire answer.  Patch from
+		Eric Wassenaar.
+	Improvements to MaxDaemonChildren code.  If you think you have too
+		many children, probe the ones you have to verify that they
+		are still around.  Suggested by Jared Mauch of CICnet, Inc.
+		Also, do this probe before growing the vector of children
+		pids; this previously caused the vector to grow indefinitely
+		due to a race condition.  Problem reported by Kyle Jones of
+		UUNET.
+	On some architectures, <db.h> (from the Berkeley DB library) defines
+		O_EXLOCK to zero; this fools the map compilation code into
+		thinking that it can avoid race conditions by locking on open.
+		Change it to check for O_EXLOCK non-zero.  Problem noted by
+		Leif Erlingsson of Data Lege.
+	Always call res_init() on startup (if compiled in, of course) to
+		allow the sendmail.cf file to tweak resolver flags; without
+		it, flag tweaks in ResolverOptions are ignored.  Patch from
+		Andrew Sun of Merrill Lynch.
+	Improvements to host status printing code.  Suggested by Steve Hubert
+		of the University of Washington, Seattle.
+	Change MinQueueAge option processing to do the check for the job age
+		when reading the queue file, rather than at the end; this
+		avoids parsing the addresses, which can do DNS lookups.
+		Problem noted by John Beck of InReference, Inc.
+	When MIME was being 7->8 bit decoded, "From " lines weren't being
+		properly escaped.  Problem noted by Peter Nilsson of the
+		University of Linkoping.
+	In some cases, sendmail would retain root permissions during queue
+		runs even if RunAsUser was set.  Problem noted by Mark
+		Thomas of Mark G. Thomas Consulting.
+	If the F=l flag was set on an SMTP mailer to indicate that it is
+		actually local delivery, and NOTIFY=SUCCESS is specified in
+		the envelope, and the receiving SMTP server speaks DSN, then
+		the DSN would be both generated locally and propogated to the
+		other end.
+	The U= mailer field didn't correctly extract the group id if the
+		user id was numeric.  Problem noted by Kenneth Herron of
+		MCI Telecommunications Communications.
+	If a message exceeded the fixed maximum size on input, the body of
+		the message was included in the bounce.  Note that this did
+		not occur if it exceeded the maximum _output_ size.  Problem
+		reported by Kyle Jones of UUNET.
+	PORTABILITY FIXES:
+		AIX4: 4.1 does't have a working setreuid(2); change the
+			AIX4 defines to use seteuid(2) instead, which
+			works on 4.1 as well as 4.2.  Problem noted by
+			Håkan Lindholm of interAF, Sweden.
+		AIX4: use tzname[] vector to determine time zone name.
+			Patch from NAKAMURA Motonori of Kyoto University.
+		MkLinux: add Makefile.Linux.ppc and OSTYPE(mklinux) support.
+			Contributed by Paul DuBois <dubois@primate.wisc.edu>.
+		Solaris: kstat(3k) support for retrieving the load average.
+			This adds the LA_KSTAT definition for LA_TYPE.
+			The outline of the implementation was contributed
+			by Michael Tokarev of Telecom Service, JSC, Moscow.
+		HP-UX 10.0 gripes about the (perfectly legal!) forward
+			declaration of struct rusage at the top of conf.h;
+			change it to only be included if you are using gcc,
+			which is apparently the only compiler that requires
+			it in the first place.  Problem noted by Jeff
+			Earickson of Colby College.
+		IRIX: don't default to using gcc.  IRIX is a civilized
+			operating system that comes with a decent compiler
+			by default.  Problem noted by Barry Bouwsma and
+			Kari Hurtta.
+	CONFIG: specify F=9 as default in FEATURE(local_procmail) for
+		consistency with other local mailers.  Inconsistency
+		pointed out by Teddy Hogeborn <teddy@fukt.hk-r.se>.
+	CONFIG: if the "limited best mx" feature is used (to reduce DNS
+		overhead) as part of the bestmx_is_local feature, the
+		domain part was dropped from the name.  Patch from Steve
+		Hubert of the University of Washington, Seattle.
+	CONFIG: catch addresses of the form "user@.dom.ain"; these could
+		end up being translated to the null host name, which would
+		return any entry in /etc/hosts that had a space at the end
+		of the line.  Problem noted by Steve Hubert of the
+		University of Washington, Seattle.
+	CONFIG: add OSTYPE(aix4).  From Michael Sofka of Rensselaer
+		Polytechnic Institute.
+	MAKEMAP: tweak hash and btree parameters for better performance.
+		Patch from Matt Dillon of Best Internet Communications.
+	NEW FILES:
+		src/Makefiles/Makefile.Linux.ppc
+		cf/ostype/aix4.m4
+		cf/ostype/mklinux.m4
+
+8.8.2/8.8.2	96/10/18
+	SECURITY: fix a botch in the 7-bit MIME patch; the previous patch
+		changed the code but didn't fix the problem.
+	PORTABILITY FIXES:
+		Solaris: Don't use the system getusershell(3); it can
+			apparently corrupt the heap in some circumstances.
+			Problem found by Ken Pizzini of Spry, Inc.
+	OP.ME: document several mailer flags that were accidently omitted
+		from this document.  These flags were F=d, F=j, F=R, and F=9.
+	CONFIG: no changes.
+
+8.8.1/8.8.1	96/10/17
+	SECURITY: unset all environment variables that the resolver will
+		examine during queue runs and daemon mode.  Problem noted
+		by Dan Bernstein of the University of Illinois at Chicago.
+	SECURITY: in some cases an illegal 7-bit MIME-encoded text/plain
+		message could overflow a buffer if it was converted back
+		to 8 bits.  This caused core dumps and has the potential
+		for a remote attack.  Problem first noted by Gregory Shapiro
+		of WPI.
+	Avoid duplicate deliveries of error messages on systems that don't
+		have flock(2) support.  Patch from Motonori Nakamura of
+		Kyoto University.
+	Ignore null FallBackMX (V) options.  If this option is null (as
+		opposed to undefined) it can cause "null signature" syserrs
+		on illegal host names.
+	If a Base64 encoded text/plain message has no trailing newline in
+		the encoded text, conversion back to 8 bits will drop the
+		final line.  Problem noted by Pierre David.
+	If running with a RunAsUser, sendmail would give bogus "cannot
+		setuid" (or seteuid, or setreuid) messages on some systems.
+		Problem pointed out by Jordan Mendelson of Web Services, Inc.
+	Always print error messages in -bv mode -- previously, -bv would
+		be absolutely silent on errors if the error mode was sent
+		to (say) mail-back.  Problem noted by Kyle Jones of UUNET.
+	If -qI/R/S is set (or the ETRN command is used), ignore all long
+		term host status.  This is necessary because it is common
+		to do this when you know a host has just come back up.
+	Disallow duplicate HELO/EHLO commands as required by RFC 1651 section
+		4.2.  Excessive permissiveness noted by Lee Flight of the
+		University of Leicester.
+	If a service (such as NIS) is specified as the last entry in the
+		service switch, but that service is not compiled in, sendmail
+		would return a temporary failure when an entry was not found
+		in the map.  This caused the message to be queued instead of
+		bouncing immediately.  Problem noted by Harry Edmon of the
+		University of Washington.
+	PORTABILITY FIXES:
+		Solaris 2.3 had compilation problems in conf.c.  Several
+			people pointed this out.
+		NetBSD from Charles Hannum of MIT.
+		AIX4 improvements based on info from Steve Bauer of South
+			Dakota School of Mines & Technology.
+	CONFIG: ``error:code message'' syntax was broken in virtusertable.
+		Patch from Gil Kloepfer Jr.
+	CONFIG: if FEATURE(nocanonify) was specified, hosts in $=M (set
+		using MASQUERADE_DOMAIN) were not masqueraded unless they
+		were also in $=w.  Problem noted by Zoltan Basti of
+		Softec.
+	MAIL.LOCAL: patches to compile and link cleanly on AIX.  Based
+		on a patch from Eric Hagberg of Morgan Stanley.
+	MAIL.LOCAL: patches to compile on NEXTSTEP.  From Patrick Nolan
+		of Stanford via Robert La Ferla.
+
+8.8.0/8.8.0	96/09/26
+	Under some circumstances, Bcc: headers would not be properly
+		deleted.  Pointed out by Jonathan Kamens of OpenVision.
+	Log a warning if the sendmail daemon is invoked without a full
+		pathname, which prevents "kill -1" from working.  I was
+		urged to put this in by Andrey A. Chernov of DEMOS (Russia).
+	Fix small buffer overflow.  Since the data in this buffer was not
+		read externally, there was no security problem (and in fact
+		probably wouldn't really overflow on most compilers).  Pointed
+		out by KIZU takashi of Osaka University.
+	Fix problem causing domain literals such as [1.2.3.4] to be ignored
+		if a FallbackMXHost was specified in the configuration file
+		-- all mail would be sent to the fallback even if the original
+		host was accessible.  Pointed out by Munenari Hirayama of
+		NSC (Japan).
+	A message that didn't terminate with a newline would (sometimes) not
+		have the trailing "." added properly in the SMTP dialogue,
+		causing SMTP to hang.  Patch from Per Hedeland of Ericsson.
+	The DaemonPortOptions suboption to bind to a particular address was
+		incorrect and nonfunctional due to a misunderstanding of the
+		semantics of binding on a passive socket.  Patch from
+		NIIBE Yutaka of Mitsubishi Research Institute.
+	Increase the number of MX hosts for a single name to 100 to better
+		handle the truly huge service providers such as AOL, which
+		has 13 at the moment (and climbing).  In order to avoid
+		trashing memory, the buffer for all names has only been
+		slightly increased in size, to 12.8K from 10.2K -- this means
+		that if a single name had 100 MX records, the average size
+		of those records could not exceed 128 bytes.  Requested by
+		Brad Knowles of America On Line.
+	Restore use of IDENT returns where the OSTYPE field equals "OTHER".
+		Urged by Dan Bernstein of U.C. Berkeley.
+	Print q_statdate and q_specificity in address structure debugging
+		printout.
+	Expand MCI structure flag bits for debugging output.
+	Support IPv6-style domain literals, which can have colons between
+		square braces.
+	Log open file descriptors for the "cannot dup" messages in deliver();
+		this is an attempt to track down a bug that one person seems
+		to be having (it may be a Solaris bug!).
+	DSN NOTIFY parameters were not properly propogated across queue runs;
+		this caused the NOTIFY info to sometimes be lost.  Problem
+		pointed out by Claus Assmann of the
+		Christian-Albrechts-University of Kiel.
+	The statistics gathered in the sendmail.st file were too high; in
+		some cases failures (e.g., user unknown or temporary failure)
+		would count as a delivery as far as the statistics were
+		concerned.  Problem noted by Tom Moore of AT&T GIS.
+	Systems that don't have flock() would not send split envelopes in
+		the initial run.  Problem pointed out by Leonard Zubkoff of
+		Dandelion Digital.
+	Move buffer overflow checking -- these primarily involve distrusting
+		results that may come from NIS and DNS.
+	4.4-BSD-derived systems, including FreeBSD, NetBSD, and BSD/OS didn't
+		include <paths.h> and hence had the wrong pathnames for a few
+		things like /var/tmp.  Reported by Matthew Green.
+	Conditions were reversed for the Priority: header, resulting in all
+		values being interpreted as non-urgent except for non-urgent,
+		which was interpreted as normal.  Patch from Bryan Costales.
+	The -o (optional) flag was being ignored on hash and btree maps
+		since 8.7.2.  Fix from Bryan Costales.
+	Content-Types listed in class "q" will always be encoded as
+		Quoted-Printable (or more accurately, will never be encoded
+		as base64).  The class can have primary types (e.g., "text")
+		or full types (e.g., "text/plain").  Based on a suggestion by
+		Marius Olafsson of the University of Iceland.
+	Define ${envid} to be the original envelope id (from the ESMTP DSN
+		dialogue) so it can be passed to programs in mailers.
+	Define ${bodytype} to be the body type (from the -B flag or the
+		BODY= ESMTP parameter) so it can be passed to programs in
+		mailers.
+	Cause the VRFY command to return 252 instead of 250 unless the F=q
+		flag is set in the mailer descriptor.  Suggested by John
+		Myers of CMU.
+	Implement ESMTP ETRN command to flush the queue for a specific host.
+		The command takes a host name; data for that host is
+		immediately (and asynchronously) flushed.  Because this shares
+		the -qR implementation, other hosts may be attempted, but
+		there should be no security implications.  Implementation
+		from John Beck of InReference, Inc.  See RFC 1985 for details.
+	Add three new command line flags to pass in DSN parameters: -V envid
+		(equivalent to ENVID=envid on the MAIL command), -R ret
+		(equivalent to RET=ret on the MAIL command), and -Nnotify
+		(equivalent to NOTIFY=notify on the RCPT command).  Note
+		that the -N flag applies to all recipients; there is no way
+		to specify per-address notifications on the command line,
+		nor is there an equivalent for the ORCPT= per-address
+		parameter.
+	Restore LogLevel option to be safe (it can only be increased);
+		apparently I went into paranoid mode between 8.6 and 8.7
+		and made it unsafe.  Pointed out by Dabe Murphy of the
+		University of Maryland.
+	New logging on log level 15:  all SMTP traffic.  Patches from
+		Andrew Gross of San Diego Supercomputer Center.
+	NetInfo property value searching code wasn't stopping when it found
+		a match.  This was causing the wrong values to be found (and
+		had a memory leak).  Found by Bastian Schleuter of TU-Berlin.
+	Add new F=0 (zero) mailer flag to turn off MX lookups.  It was pointed
+		out by Bill Wisner of Electronics for Imaging that you can't
+		use the bracket address form for the MAIL_HUB macro, since
+		that causes the brackets to remain in the envelope recipient
+		address used for delivery.  The simple fix (stripping off the
+		brackets in the config file) breaks the use of IP literal
+		addresses.  This flag will solve that problem.
+	Add MustQuoteChars option.  This is a list of characters that must
+		be quoted if they are found in the phrase part of an address
+		(that is, the full name part).  The characters @,;:\()[] are
+		always in this list and cannot be removed.  The default is
+		this list plus . and ' to match RFC 822.
+	Add AllowBogusHELO option; if set, sendmail will allow HELO commands
+		that do not include a host name for back compatibility with
+		some stupid SMTP clients.  Setting this violates RFC 1123
+		section 5.2.5.
+	Add MaxDaemonChildren option; if this is set, sendmail will start
+		rejecting connections if it has more than this many
+		outstanding children accepting mail.  Note that you may
+		see more processes than this because of outgoing mail; this
+		is for incoming connections only.
+	Add ConnectionRateThrottle option.  If set to a positive value, the
+		number of incoming SMTP connections that will be permitted
+		in a single second is limited to this number.  Connections are
+		not refused during this time, just deferred.  The intent is to
+		flatten out demand so that load average limiting can kick in.
+		It is less radical than MaxDaemonChildren, which will stop
+		accepting connections even if all the connections are idle
+		(e.g., due to connection caching).
+	Add Timeout.hoststatus option.  This interval (defaulting to 30m)
+		specifies how long cached information about the state of a
+		host will be kept before they are considered stale and the
+		host is retried.  If you are using persistent host status
+		(i.e., the HostStatusDirectory option is set) this will apply
+		between runs; otherwise, it applies only within a single queue
+		run and hence is useful only for hosts that have large queues
+		that take a very long time to run.
+	Add SingleLineFromHeader option.  If set, From: headers are coerced
+		into being a single line even if they had newlines in them
+		when read.  This is to get around a botch in Lotus Notes.
+	Text class maps were totally broken -- if you ever retrieved the last
+		item in a table it would be truncated.  Problem noted by
+		Gregory Neil Shapiro of WPI.
+	Extend the lines printed by the mailq command (== the -bp flag) when
+		-v is given to 120 characters; this allows more information
+		to be displayed.  Suggested by Gregory Neil Shapiro of WPI.
+	Allow macro definitions (`D' lines) with unquoted commas; previously
+		this was treated as end-of-input.  Problem noted by Bryan
+		Costales.
+	The RET= envelope parameter (used for DSNs) wasn't properly written
+		to the queue file.  Fix from John Hughes of Atlantic
+		Technologies, Inc.
+	Close /var/tmp/dead.letter after a successful write -- otherwise
+		if this happens in a queue run it can cause nasty delays.
+		Problem noted by Mark Horton of AT&T.
+	If userdb entries pointed to userdb entries, and there were multiple
+		values for a given key, the database cursor would get
+		trashed by the recursive call.  Problem noted by Roy Mongiovi
+		of Georgia Tech.  Fixed by reading all the values and creating
+		a comma-separated list; thus, the -v output will be somewhat
+		different for this case.
+	Fix buffer allocation problem with Hesiod-based userdb maps when
+		HES_GETMAILHOST is defined.  Based on a patch by Betty Lee
+		of Stanford University.
+	When envelopes were split due to aliases with owner- aliases, and
+		there was some error on one of the lists, more than one of
+		the owners would get the message.  Problem pointed out by
+		Roy Mongiovi of Georgia Tech.
+	Detect excessive recursion in macro expansions, e.g., $X defined
+		in terms of $Y which is defined in terms of $X.  Problem
+		noted by Bryan Costales; patch from Eric Wassenaar.
+	When using F=U to get "ugly UUCP" From_ lines, a buffer could in
+		some cases get trashed causing bogus From_ lines.  Fix from
+		Kyle Jones of UUNET.
+	When doing load average initialization, if the nlist call for avenrun
+		failed, the second and subsequent lookups wouldn't notice
+		that fact causing bogus load averages to be returned.  Noted
+		by Casper Dik of Sun Holland.
+	Fix problem with incompatibility with some versions of inet_aton that
+		have changed the return value to unsigned, so a check for an
+		error return of -1 doesn't work.  Use INADDR_NONE instead.
+		This could cause mail to addresses such as [foo.com] to bounce
+		or get dropped.  Problem noted by Christophe Wolfhugel of the
+		Pasteur Institute.
+	DSNs were inconsistent if a failure occured during the DATA phase
+		rather than the RCPT phase: the Action: would be correct, but
+		the detailed status information would be wrong.  Problem noted
+		by Bob Snyder of General Electric Company.
+	Add -U command line flag and the XUSR ESMTP extension, both indicating
+		that this is the initial MUA->MTA submission.  The flag current
+		does nothing, but in future releases (when MUAs start using
+		these flags) it will probably turn on things like DNS
+		canonification.
+	Default end-of-line string (E= specification on mailer [M] lines)
+		to \r\n on SMTP mailers.  Default remains \n on non-SMTP
+		mailers.
+	Change the internal definition for the *file* and *include* mailers
+		to have $u in the argument vectors so that they aren't
+		misinterpreted as SMTP mailers and thus use \r\n line
+		termination.  This will affect anyone who has redefined
+		either of these in their configuration file.
+	Don't assume that IDENT servers close the connection after a query;
+		responses can be newline terminated.  From Terry Kennedy of
+		St. Peter's College.
+	Avoid core dumps on erroneous configuration files that have
+		$#mailer with nothing following.  From Bryan Costales.
+	Avoid null pointer dereference with high debug values in unlockqueue.
+		Fix from Randy Martin of Clemson University.
+	Fix possible buffer overrun when expanding very large macros.  Fix
+		from Kyle Jones of UUNET.
+	After 25 EXPN or VRFY commands, start pausing for a second before
+		processing each one.  This avoids a certain form of denial
+		of service attack.  Potential attack pointed out by Bryan
+		Costales.
+	Allow new named (not numbered!) config file rules to do validity
+		checking on SMTP arguments: check_mail for MAIL commands and
+		check_rcpt for RCPT commands.  These rulesets can do anything
+		they want; their result is ignored unless they resolve to the
+		$#error mailer, in which case the indicated message is printed
+		and the command is rejected.  Similarly, the check_compat
+		ruleset is called before delivery with "from_addr $| to_addr"
+		(the $| is a meta-symbol used to separate the two addresses);
+		it can give a "this sender can't send to this recipient"
+		notification.  Note that this patch allows $| to stand alone
+		in rulesets.
+	Define new macros ${client_name}, ${client_addr}, and ${client_port}
+		that have the name, IP address, and port number (respectively)
+		of the SMTP client (that is, the entity at the other end of
+		the connection.  These can be used in (e.g.) check_rcpt to
+		verify that someone isn't trying to relay mail through your
+		host inappropriately.  Be sure to use the deferred evaluation
+		form, for example $&{client_name}, to avoid having these bound
+		when sendmail reads the configuration file.
+	Add new config file rule check_relay to check the incoming connection
+		information.  Like check_compat, it is passed the host name
+		and host address separated by $| and can reject connections
+		on that basis.
+	Allow IDA-style recursive function calls.  Code contributed by Mark
+		Lovell and Paul Vixie.
+	Eliminate the "No ! in UUCP From address!" message" -- instead, create
+		a virtual UUCP address using either a domain address or the $k
+		macro.  Based on code contributed by Mark Lovell and Paul
+		Vixie.
+	Add Stanford LDAP map.  Requires special libraries that are not
+		included with sendmail.  Contributed by Booker C. Bense
+		<bbense@networking.stanford.edu>; contact him for support.
+		See also the src/READ_ME file.
+	Allow -dANSI to turn on ANSI escape sequences in debug output; this
+		puts metasymbols (e.g., $+) in reverse video.  Really useful
+		only for debugging deep bits of code where it is important to
+		distinguish between the single-character metasymbol $+ and the
+		two characters $, +.
+	Changed ruleset 89 (executed in dumpstate()) to a named ruleset,
+		debug_dumpstate.
+	Add new UnsafeGroupWrites option; if set, .forward and :include:
+		files that are group writable are considered "unsafe" -- that
+		is, programs and files referenced from such files are not
+		valid recipients.
+	Delete bogosity test for FallBackMX host; this prevented it to be a
+		name that was not in DNS or was a domain-literal.  Problem
+		noted by Tom May.
+	Change the introduction to error messages to more clearly delineate
+		permanent from temporary failures; if both existed in a
+		single message it could be confusing.  Suggested by John
+		Beck of InReference, Inc.
+	The IngoreDot (i) option didn't work for lines that were terminated
+		with CRLF.  Problem noted by Ted Stockwell of Secure
+		Computing Corporation.
+	Add a heuristic to improve the handling of unbalanced `<' signs in
+		message headers.  Problem reported by Matt Dillon of Best
+		Internet Communications.
+	Check for bogus characters in the 0200-0237 range; since these are
+		used internally, very strange errors can occur if those
+		characters appear in headers.  Problem noted by Anders Gertz
+		of Lysator.
+	Implement 7 -> 8 bit MIME conversions.  This only takes place if the
+		recipient mailer has the F=9 flag set, and only works on
+		text/plain body types.  Code contributed by Marius Olafsson
+		of the University of Iceland.
+	Special case "postmaster" name so that it is always treated as lower
+		case in alias files regardless of configuration settings;
+		this prevents some potential problems where "Postmaster" or
+		"POSTMASTER" might not match "postmaster".  In most cases
+		this change is a no-op.
+	The -o map flag was ignored for text maps.  Problem noted by Bryan
+		Costales.
+	The -a map flag was ignored for dequote maps.  Problem noted by
+		Bryan Costales.
+	Fix core dump when a lookup of a class "prog" map returns no
+		response.  Patch from Bryan Costales.
+	Log instances where sendmail is deferring or rejecting connections
+		on LogLevel 14.  Suggested by Kyle Jones of UUNET.
+	Include port number in process title for network daemons.  Suggested
+		by Kyle Jones of UUNET.
+	Send ``double bounces'' (errors that occur when sending an error
+		message) to the address indicated in the DoubleBounceAddress
+		option (default: postmaster).  Previously they were always
+		sent to postmaster.  Suggested by Kyle Jones of UUNET.
+	Add new mode, -bD, that acts like -bd in all respects except that
+		it runs in foreground.  This is useful for using with a
+		wrapper that "watches" system services.  Suggested by Kyle
+		Jones of UUNET.
+	Fix botch in spacing around (parenthesized) comments in addresses
+		when the comment comes before the address.  Patch from
+		Motonori Nakamura of Kyoto University.
+	Use the prefix "Postmaster notify" on the Subject: lines of messages
+		that are being bounced to postmaster, rather than "Returned
+		mail".  This permits the person who is postmaster more
+		easily determine what messages are to their role as
+		postmaster versus bounces to mail they actually sent.  Based
+		on a suggestion by Motonori Nakamura.
+	Add new value "time" for QueueSortOrder option; this causes the queue
+		to be sorted strictly by the time of submission.  Note that
+		this can cause very bad behaviour over slow lines (because
+		large jobs will tend to delay small jobs) and on nodes with
+		heavy traffic (because old things in the queue for hosts that
+		are down delay processing of new jobs).  Also, this does not
+		guarantee that jobs will be delivered in submission order
+		unless you also set DeliveryMode=queue.  In general, it should
+		probably only be used on the command line, and only in
+		conjunction with -qRhost.domain.  In fact, there are very few
+		cases where it should be used at all.  Based on an
+		implementation by Motonori Nakamura.
+	If a map lookup in ruleset 5 returns tempfail, queue the message in
+		the same manner as other rulesets.  Previously a temporary
+		failure in ruleset 5 was ignored.  Patch from Booker Bense
+		of Stanford University.
+	Don't proceed to the next MX host if an SMTP MAIL command returns a
+		5yz (permanent failure) code.  The next MX host will still be
+		tried if the connection cannot be opened in the first place
+		or if the MAIL command returns a 4yz (temporary failure) code.
+		(It's hard to know what to do here, since neither RFC 974 nor
+		RFC 1123 specify when to proceed to the next MX host.)
+		Suggested by Jonathan Kamens of OpenVision, Inc.
+	Add new "-t" flag for map definitions (the "K" line in the .cf file).
+		This causes map lookups that get a temporary failure (e.g.,
+		name server failure) to _not_ defer the delivery of the
+		message.  This should only be used if your configuration file
+		is prepared to do something sensible in this case.  Based on
+		an idea by Gregory Shapiro of WPI.
+	Fix problem finding network interface addresses.  Patch from
+		Motonori Nakamura.
+	Don't reject qf entries that are not owned by your effective uid if
+		you are not running setuid; this makes management of certain
+		kinds of firewall setups difficult.  Patch suggested by
+		Eamonn Coleman of Qualcomm.
+	Add persistent host status.  This keeps the information normally
+		maintained within a single queue run in disk files that are
+		shared between sendmail instances.  The HostStatusDirectory
+		is the directory in which the information is maintained.  If
+		not set, persistent host status is turned off.  If not a full
+		pathname, it is relative to the queue directory.  A common
+		value is ".hoststat".
+		There are also two new operation modes:
+		  * -bh prints the status of hosts that have had recent
+		    connections.
+		  * -bH purges the host statuses.  No attempt is made to save
+		    recent status information.
+		This feature was originally written by Paul Vixie of Vixie
+		Enterprises for KJS and adapted for V8 by Mark Lovell of
+		Bigrock Consulting.  Paul's funding of Mark and Mark's patience
+		with my insistence that things fit cleanly into the V8
+		framework is gratefully appreciated.
+	New SingleThreadDelivery option (requires HostStatusDirectory to
+		operate).  Avoids letting two sendmails on the local machine
+		open connections to the same remote host at the same time.  
+		This reduces load on the other machine, but can cause mail to
+		be delayed (for example, if one sendmail is delivering a huge
+		message, other sendmails won't be able to send even small
+		messages).  Also, it requires another file descriptor (for the
+		lock file) per connection, so you may have to reduce
+		ConnectionCacheSize to avoid running out of per-process
+		file descriptors.  Based on the persistent host status code
+		contributed by Paul Vixie and Mark Lovell.
+	Allow sending to non-simple files (e.g., /dev/null) even if the
+		SafeFileEnvironment option is set.  Problem noted by Bryan
+		Costales.
+	The -qR flag mistakenly matched flags in the "R" line of the queue
+		file.  Problem noted by Bryan Costales.
+	If a job was aborted using the interrupt signal (e.g., control-C from
+		the keyboard), on some occasions an empty df file would be
+		left around; these would collect in the queue directory.
+		Problem noted by Bryan Costales.
+	Change the makesendmail script to enhance the search for Makefiles
+		based on release number.  For example, on SunOS 5.5.1, it will
+		search for Makefile.SunOS.5.5.1, Makefile.SunOS.5.5, and then
+		Makefile.SunOS.5.x (in addition to the other rules, e.g.,
+		adding $arch).  Problem noted by Jason Mastaler of Atlanta
+		Webmasters.
+	When creating maps using "newaliases", always map the keys to lower
+		case when creating the map unless the -f flag is specified on
+		the map itself.  Previously this was done based on the F=u
+		flag in the local mailer, which meant you could create aliases
+		that you could never access.  Problem noted by Bob Wu of DEC.
+	When a job was read from the queue, the bits causing notification on
+		failure or delay were always set.  This caused those
+		notifications to be sent even if NOTIFY=NEVER had been
+		specified.  Problem noted by Steve Hubert of the University
+		of Washington, Seattle.
+	Add new configurable routine validate_connection (in conf.c).  This
+		lets you decide if you are willing to accept traffic from
+		this host.  If it returns FALSE, all SMTP commands will return
+		"550 Access denied".  -DTCPWRAPPERS will include support for
+		TCP wrappers; you will need to add -lwrap to the link line.
+		(See src/READ_ME for details.)
+	Don't include the "THIS IS A WARNING MESSAGE ONLY" banner on postmaster
+		bounces.  Some people seemed to think that this could be
+		confusing (even though it is true).  Suggested by Motonori
+		Nakamura.
+	Add new RunAsUser option; this causes sendmail to do a setuid to that
+		user early in processing to avoid potential security problems.
+		However, this means that all .forward and :include: files must
+		be readable by that user, and all files to be written must be
+		writable by that user and all programs will be executed by that
+		user.  It is also incompatible with the SafeFileEnvironment
+		option.  In other words, it may not actually add much to
+		security.  However, it should be useful on firewalls and other
+		places where users don't have accounts and the aliases file is
+		well constrained.
+	Add Timeout.iconnect.  This is like Timeout.connect except it is used
+		only on the first attempt to delivery to an address.  It could
+		be set to be lower than Timeout.connect on the principle that
+		the mail should go through quickly to responsive hosts; less
+		responsive hosts get to wait for the next queue run.
+	Fix a problem on Solaris that occassionally causes programs
+		(such as vacation) to hang with their standard input connected
+		to a UDP port.  It also created some signal handling problems.
+		The problems turned out to be an interaction between vfork(2)
+		and some of the libraries, particularly NIS/NIS+.  I am
+		indebted to Tor Egge <tegge@idt.ntnu.no> for this fix.
+	Change user class map to do the same matching that actual delivery
+		will do instead of just a /etc/passwd lookup.  This adds
+		fuzzy matching to the user map.  Patch from Dan Oscarsson.
+	The Timeout.* options are not safe -- they can be used to create a
+		denial-of-service attack.  Problem noted by Christophe
+		Wolfhugel.
+	Don't send PostMasterCopy messages in the event of a "delayed"
+		notification.  Suggested by Barry Bouwsma.
+	Don't advertise "VERB" ESMTP extension if the "noexpn" privacy
+		option is set, since this disables VERB mode.  Suggested
+		by John Hawkinson of MIT.
+	Complain if the QueueDirectory (Q) option is not set.  Problem noted
+		by Motonori Nakamura of Kyoto University.
+	Only queue messages on transient .forward open failures if there
+		were no successful opens.  The previous behaviour caused it
+		to queue even if a "fall back" .forward was found.  Problem
+		noted by Ann-Kian Yeo of the Dept. of Information Systems
+		and Computer Science (DISCS), NUS, Singapore.
+	Don't do 8->7 bit conversions when bouncing a MIME message that
+		is bouncing because of a MIME error during 8->7 bit conversion;
+		the encapsulated message will bounce again, causing a loop.
+		Problem noted by Steve Hubert of the University of Washington.
+	Create xf (transcript) files using the TempFileMode option value
+		instead of 0644.  Suggested by Ann-Kian Yeo of the
+		National University of Singapore.
+	Print errors if setgid/setuid/etc. fail during delivery.  This helps
+		detect cases where DefaultUid is set to something that the
+		system can't cope with.
+	PORTABILITY FIXES:
+		Support for AIX/RS 2.2.1 from Mark Whetzel of Western
+			Atlas International.
+		Patches for Intel Paragon OSF/1 1.3 from Leo Bicknell
+			<bicknell@ufp.org>.
+		On DEC OSF/1 3.2 and earlier, the MatchGECOS code would only
+			work on the first recipient of a message due to a
+			bug in the getpwent family.  If this is something you
+			use, you can define DEC_OSF_BROKEN_GETPWENT=1 for a
+			workaround.  From Maximum Entropy of Sanford C.
+			Bernstein and Associates.
+		FreeBSD 1.1.5.1 uname -r returns a string containing
+			parentheses, which breaks makesendmail.  Reported
+			by Piero Serini <piero@strider.ibenet.it>.
+		Sequent DYNIX/ptx 4.0.2 patches from Jack Woolley of
+			Systems and Computer Technology Corporation.
+		Solaris 2.x: omit the UUCP grade parameter (-g flag) because
+			it is system-dependent.  Problem noted by J.J. Bailey
+			of Bailey Computer Consulting.
+		Pyramid NILE running DC/OSx support from Earle F. Ake of
+			Hassler Communication Systems Technology, Inc.
+		HP-UX 10.x compile glitches, reported by Anne Brink of the
+			U.S. Army and James Byrne of Harte & Lyne Limited.
+		NetBSD from Matthew Green of the NetBSD crew.
+		SCO 5.x from Keith Reynolds of SCO.
+		IRIX 6.2 from Robert Tarrall of the University of
+			Colorado and Kari Hurtta of the Finnish Meteorological
+			Institute.
+		UXP/DS (Fujitsu/ICL DS/90 series) support from Diego R.
+			Lopez, CICA (Seville).
+		NCR SVR4 MP-RAS 3.x support from Tom Moore of NCR.
+		PTX 3.2.0 from Kenneth Stailey of the US Department of Labor
+			Employment Standards Administration.
+		Altos System V (5.3.1) from Tim Rice of Multitalents.
+		Concurrent Systems Corporation Maxion from Donald R. Laster
+			Jr.
+		NetInfo maps (improved debugging and multi-valued aliases)
+			from Adrian Steinmann of Steinmann Consulting.
+		ConvexOS 11.5 (including SecureWare C2 and the Share Scheduler)
+			from Eric Schnoebelen of Convex.
+		Linux 2.0 mail.local patches from Horst von Brand.
+		NEXTSTEP 3.x compilation from Robert La Ferla.
+		NEXTSTEP 3.x code changes from Allan J. Nathanson of NeXT.
+		Solaris 2.5 configuration fixes for mail.local by Jim Davis
+			of the University of Arizona.
+		Solaris 2.5 has a working setreuid.  Noted by David Linn of
+			Vanderbilt University.
+		Solaris changes for praliases, makemap, mailstats, and smrsh.
+			Previously you had to add -DSOLARIS in Makefile.dist;
+			this auto-detects.  Based on a patch from Randall
+			Winchester of the University of Maryland.
+	CONFIG: add generic-nextstep3.3.mc file.  Contributed by
+		Robert La Ferla of Hot Software.
+	CONFIG: allow mailertables to resolve to ``error:code message''
+		(where "code" is an exit status) on domains (previously
+		worked only on hosts).  Patch from Cor Bosman of Xs4all
+		Foundation.
+	CONFIG: hooks for IPv6-style domain literals.
+	CONFIG: predefine ALIAS_FILE and change the prototype file so that
+		if it is undefined the AliasFile option is never set; this
+		should be transparent for most everyone.  Suggested by John
+		Myers of CMU.
+	CONFIG: add FEATURE(limited_masquerade).  Without this feature, any
+		domain listed in $=w is masqueraded.  With it, only those
+		domains listed in a MASQUERADE_DOMAIN macro are masqueraded.
+	CONFIG: add FEATURE(masquerade_entire_domain).  This causes
+		masquerading specified by MASQUERADE_DOMAIN to apply to all
+		hosts under those domains as well as the domain headers
+		themselves.  For example, if a configuration had
+		MASQUERADE_DOMAIN(foo.com), then without this feature only
+		foo.com would be masqueraded; with it, *.foo.com would be
+		masqueraded as well.  Based on an implementation by Richard
+		(Pug) Bainter of U. Texas.
+	CONFIG: add FEATURE(genericstable) to do a more general rewriting of
+		outgoing addresses.  Defaults to ``hash -o /etc/genericstable''.
+		Keys are user names; values are outgoing mail addresses.  Yes,
+		this does overlap with the user database, and figuring out
+		just when to use which one may be tricky.  Based on code
+		contributed by Richard (Pug) Bainter of U. Texas with updates
+		from Per Hedeland of Ericsson.
+	CONFIG: add FEATURE(virtusertable) to do generalized rewriting of
+		incoming addresses.  Defaults to ``hash -o /etc/virtusertable''.
+		Keys are either fully qualified addresses or just the host
+		part (with the @ sign).  For example, a table containing:
+			info@foo.com	foo-info
+			info@bar.com	bar-info
+			@baz.org	jane@elsewhere.net
+		would send all mail destined for info@foo.com to foo-info
+		(which is presumably an alias), mail addressed to info@bar.com
+		to bar-info, and anything addressed to anyone at baz.org will
+		be sent to jane@elsewhere.net.  The names foo.com, bar.com,
+		and baz.org must all be in $=w.  Based on discussions with
+		a great many people.
+	CONFIG: add nullclient configurations to define SMTP_MAILER_FLAGS.
+		Suggested by Richard Bainter.
+	CONFIG: add FAX_MAILER_ARGS to tweak the arguments passed to the
+		"fax" mailer.
+	CONFIG: allow mailertable entries to resolve to local:user; this
+		passes the original user@host in to procmail-style local
+		mailers as the "detail" information to allow them to do
+		additional clever processing.  From Joe Pruett of
+		Teleport Corporation.  Delivery to the original user can
+		be done by specifying "local:" (with nothing after the colon).
+	CONFIG: allow any context that takes "mailer:domain" to also take
+		"mailer:user@domain" to force mailing to the given user;
+		"local:user" can also be used to do local delivery.  This
+		applies on *_RELAY and in the mailertable entries.  Based
+		on a suggestion by Ribert Kiessling of Easynet.
+	CONFIG: Allow FEATURE(bestmx_is_local) to take an argument that
+		limits the possible domains; this reduces the number of DNS
+		lookups required to support this feature.  For example,
+		FEATURE(bestmx_is_local, my.site.com) limits the lookups
+		to domains under my.site.com.  Code contributed by Anthony
+		Thyssen <anthony@cit.gu.edu.au>.
+	CONFIG: LOCAL_RULESETS introduces any locally defined rulesets,
+		such as the check_rcpt ruleset.  Suggested by Gregory Shapiro
+		of WPI.
+	CONFIG: MAILER_DEFINITIONS introduces any mailer definitions, in the
+		event you have to define local mailers.  Suggested by
+		Gregory Shapiro of WPI.
+	CONFIG: fix cases where a three- (or more-) stage route-addr could
+		be misinterpreted as a list:...; syntax.  Based on a patch by
+		Vlado Potisk <Vlado_Potisk@tempest.sk>.
+	CONFIG: Fix masquerading of UUCP addresses when the UUCP relay is
+		remotely connected.  The address host!user was being
+		converted to host!user@thishost instead of host!user@uurelay.
+		Problem noted by William Gianopoulos of Raytheon Company.
+	CONFIG: add confTO_ICONNECT to set Timeout.iconnect.
+	CONFIG: change FEATURE(redirect) message from "User not local" to
+		"User has moved"; the former wording was confusing if the
+		new address is still on the local host.  Based on a suggestion
+		by Andreas Luik.
+	CONFIG: add support in FEATURE(nullclient) for $=E (exposed users).
+		However, the class is not pre-initialized to contain root.
+		Suggested by Gregory Neil Shapiro.
+	CONTRIB: Remove XLA code at the request of the author, Christophe
+		Wolfhugel.
+	CONTRIB: Add re-mqueue.pl, contributed by Paul Pomes of Qualcomm.
+	MAIL.LOCAL: make it possible to compile mail.local on Solaris.  Note
+		well: this produces a slightly different mailbox format (no
+		Content-Length: headers), file ownerships and modes are
+		different (not owned by group mail; mode 600 instead of 660),
+		and the local mailer flags will have to be tweaked (make them
+		match bsd4.4) in order to use this mailer.  Patches from Paul
+		Hammann of the Missouri Research and Education Network.
+	MAIL.LOCAL: in some cases it could return EX_OK even though there
+		was a delivery error, such as if the ownership on the file
+		was wrong or the mode changed between the initial stat and
+		the open.  Problem reported by William Colburn of the New
+		Mexico Institute of Mining and Technology.
+	MAILSTATS: handle zero length files more reliably.  Patch from Bryan
+		Costales.
+	MAILSTATS: add man page contributed by Keith Bostic of BSDI.
+	MAKEMAP: The -d flag (to allow duplicate keys) to a btree map wasn't
+		honored.  Fix from Michael Scott Shappe.
+	PRALIASES: add man page contributed by Keith Bostic of BSDI.
+	NEW FILES:
+		src/Makefiles/Makefile.AIX.2
+		src/Makefiles/Makefile.IRIX.6.2
+		src/Makefiles/Makefile.maxion
+		src/Makefiles/Makefile.NCR.MP-RAS.3.x
+		src/Makefiles/Makefile.SCO.5.x
+		src/Makefiles/Makefile.UXPDSV20
+		mailstats/mailstats.8
+		praliases/praliases.8
+		cf/cf/generic-nextstep3.3.mc
+		cf/feature/genericstable.m4
+		cf/feature/limited_masquerade.m4
+		cf/feature/masquerade_entire_domain.m4
+		cf/feature/virtusertable.m4
+		cf/ostype/aix2.m4
+		cf/ostype/altos.m4
+		cf/ostype/maxion.m4
+		cf/ostype/solaris2.ml.m4
+		cf/ostype/uxpds.m4
+		contrib/re-mqueue.pl
+	DELETED FILES:
+		src/Makefiles/Makefile.Solaris
+		contrib/xla/README
+		contrib/xla/xla.c
+	RENAMED FILES:
+		src/Makefiles/Makefile.NCR3000 =>	Makefile.NCR.MP-RAS.2.x
+		src/Makefiles/Makefile.SCO.3.2v4.2 =>	Makefile.SCO.4.2
+		src/Makefiles/Makefile.UXPDS =>		Makefile.UXPDSV10
+		src/Makefiles/Makefile.NeXT =>		Makefile.NeXT.2.x
+		src/Makefiles/Makefile.NEXTSTEP =>	Makefile.NeXT.3.x
+
+8.7.6/8.7.3	96/09/17
+	SECURITY: It is possible to force getpwuid to fail when writing the
+		queue file, causing sendmail to fall back to running programs
+		as the default user.  This is not exploitable from off-site.
+		Workarounds include using a unique user for the DefaultUser
+		(old u & g options) and using smrsh as the local shell.
+	SECURITY: fix some buffer overruns; in at least one case this allows
+		a local user to get root.  This is not known to be exploitable
+		from off-site.  The workaround is to disable chfn(1) commands.
+
+8.7.5/8.7.3	96/03/04
+	Fix glitch in 8.7.4 when putting certain internal lines; this can
+		in some case cause connections to hang or messages to have
+		extra spaces in odd places.  Patch from Eric Wassenaar;
+		reports from Eric Hall of Chiron Corporation, Stephen
+		Hansen of Stanford University, Dean Gaudet of HotWired,
+		and others.
+
+8.7.4/8.7.3	96/02/18
+	SECURITY: In some cases it was still possible for an attacker to
+		insert newlines into a queue file, thus allowing access to
+		any user (except root).
+	CONFIG: no changes -- it is not a bug that the configuration
+		version number is unchanged.
+
+8.7.3/8.7.3	95/12/03
+	Fix botch in name server timeout in RCPT code; this problem caused
+		two responses in SMTP, which breaks things horribly.  Fix
+		from Gregory Neil Shapiro of WPI.
+	Verify that L= value on M lines cannot be negative, which could cause
+		negative array subscripting.  Not a security problem since
+		this has to be in the config file, but it could have caused
+		core dumps.  Pointed out by Bryan Costales.
+	Fix -d21 debug output for long macro names.  Pointed out by Bryan
+		Costales.
+	PORTABILITY FIXES:
+		SCO doesn't have ftruncate.  From Bill Aten of Computerizers.
+		IBM's version of arpa/nameser.h defaults to the wrong byte
+			order.  Tweak it to work properly.  Based on fixes
+			from Fletcher Mattox of UTexas and Betty Lee of
+			Stanford University.
+	CONFIG: add confHOSTS_FILE m4 variable to set HostsFile option.
+		Deficiency pointed out by Bryan Costales of ICSI.
+
+8.7.2/8.7.2	95/11/19
+	REALLY fix the backslash escapes in SmtpGreetingMessage,
+		OperatorChars, and UnixFromLine options.  They were not
+		properly repaired in 8.7.1.
+	Completely delete the Bcc: header if and only if there are other
+		valid recipient headers (To:, Cc: or Apparently-To:, the
+		last being a historic botch, of course).  If Bcc: is the
+		only recipient header in the message, it's value is tossed,
+		but the header name is kept.  The old behaviour (always keep
+		the header name and toss the value) allowed primary recipients
+		to see that a Bcc: went to _someone_.
+	Include queue id on ``Authentication-Warning: <host>: <user> set
+		sender to <addresss> using -f'' syslog messages.  Suggested
+		by Kari Hurtta.
+	If a sequence or switch map lookup entry gets a tempfail but then
+		continues on to another map type, but the name is not found,
+		return a temporary failure from the sequence or switch map.
+		For example, if hosts search ``dns files'' and DNS fails
+		with a tempfail, the hosts map will go on and search files,
+		but if it fails the whole thing should be a tempfail, not
+		a permanent (host unknown) failure, even though that is the
+		failure in the hosts.files map.  This error caused hard
+		bounces when it should have requeued.
+	Aliases to files such as /users/bar/foo/inbox, with /users/bar/foo
+		owned by bar mode 700 and inbox being setuid bar stopped
+		working properly due to excessive paranoia.  Pointed out by
+		John Hawkinson of Panix.
+	An SMTP RCPT command referencing a host that gave a nameserver
+		timeout would return a 451 command (8.6 accepted it and
+		queued it locally).  Revert to the 8.6 behaviour in order
+		to simplify queue management for clustered systems.  Suggested
+		by Gregory Neil Shapiro of WPI.  The same problem could break
+		MH, which assumes that the SMTP session will succeed (tsk, tsk
+		-- mail gets lost!); this was pointed out by Stuart Pook of
+		Infobiogen.
+	Fix possible buffer overflow in munchstring().  This was not a security
+		problem because you couldn't specify any argument to this
+		without first giving up root privileges, but it is still a
+		good idea to avoid future problems.  Problem noted by John
+		Hawkinson and Sam Hartman of MIT.
+	``452 Out of disk space for temp file'' messages weren't being
+		printed.  Fix from David Perlin of Nanosoft.
+	Don't advertise the ESMTP DSN extension if the SendMIMEErrors option
+		is not set, since this is required to get the actual DSNs
+		created.  Problem pointed out by John Gardiner Myers of CMU.
+	Log permission problems that cause .forward and :include: files to
+		be untrusted or ignored on log level 12 and higher.  Suggestted
+		by Randy Martin of Clemson University.
+	Allow user ids in U= clauses of M lines to have hyphens and
+		underscores.
+	Fix overcounting of recipients -- only happened when sending to an
+		alias.  Pointed out by Mark Andrews of SGI and Jack Woolley
+		of Systems and Computer Technology Corporation.
+	If a message is sent to an address that fails, the error message that
+		is returned could show some extraneous "success" information
+		included even if the user did not request success notification,
+		which was confusing.  Pointed out by Allan Johannesen of WPI.
+	Config files that had no AliasFile definition were defaulting to
+		using /etc/aliases; this caused problems with nullclient
+		configurations.  Change it back to the 8.6 semantics of
+		having no local alias file unless it is declared.  Problem
+		noted by Charles Karney of Princeton University.
+	Fix compile problem if NOTUNIX is defined.  Pointed out by Bryan
+		Costales of ICSI.
+	Map lookups of class "userdb" maps were always case sensitive; they
+		should be controlled by the -f flag like other maps.  Pointed
+		out by Bjart Kvarme <bjart.kvarme@usit.uio.no>.
+	Fix problem that caused some addresses to be passed through ruleset 5
+		even when they were tagged as "sticky" by prefixing the
+		address with an "@".  Patch from Thomas Dwyer III of Michigan
+		Technological University.
+	When converting a message to Quoted-Printable, prevent any lines with
+		dots alone on a line by themselves.  This is because of the
+		preponderence of broken mailers that still get this wrong.
+		Code contributed by Per Hedeland of Ericsson.
+	Fix F{macro}/file construct -- it previously did nothing.  Pointed
+		out by Bjart Kvarme of USIT/UiO (Norway).
+	Announce whether a cached connection is SMTP or ESMTP (in -v mode).
+		Requested by Allan Johannesen.
+	Delete check for text format of alias files -- it should be legal
+		to have the database format of the alias files without the
+		text version.  Problem pointed out by Joe Rhett of Navigist,
+		Inc.
+	If "Ot" was specified with no value, the TZ variable was not properly
+		imported from the environment.  Pointed out by Frank Crawford
+		<frank@ansto.gov.au>.
+	Some architectures core dumped on "program" maps that didn't have
+		extra arguments.  Patch from Booker C. Bense of Stanford
+		University.
+	Queue run processes would re-spawn daemons when given a SIGHUP; only
+		the parent should do this.  Fix from Brian Coan of the
+		Association for Progressive Communications.
+	If MinQueueAge was set and a message was considered but not run
+		during a queue run and the Timeout.queuereturn interval was
+		reached, a "timed out" error message would be returned that
+		didn't include the failed address (and claimed to be a warning
+		even though it was fatal).  The fix is to not return such
+		messages until they are actually tried, i.e., in the next
+		MinQueueAge interval.  Problem noted by Rein Tollevik of
+		SINTEF RUNIT, Oslo.
+	Add HES_GETMAILHOST compile flag to support MIT Hesiod distributions
+		that have the hes_getmailhost() routine.  DEC Hesiod
+		distributions do not have this routine.  Based on a patch
+		from Betty Lee of Stanford University.
+	Extensive cleanups to map open code to handle a locking race condition
+		in ndbm, hash, and btree format database files on some (most
+		non-4.4-BSD based) OS architectures.  This should solve the
+		occassional "user unknown" problem during alias rebuilds that
+		has plagued me for quite some time.  Based on a patch from
+		Thomas Dwyer III of Michigan Technological University.
+	PORTABILITY FIXES:
+		Solaris: Change location of newaliases and mailq from
+			/usr/ucb to /usr/bin to match Sun settings.  From
+			James B. Davis of TCI.
+		DomainOS: Makefile.DomainOS doesn't require -ldbm.  From
+			Don Lewis of Silicon Systems.
+		HP-UX 10: rename Makefile.HP-UX.10 => Makefile.HP-UX.10.x
+			so that the makesendmail script will find it.  Pointed
+			out by Richard Allen of the University of Iceland.
+			Also, use -Aa -D_HPUX_SOURCE instead of -Ae, which
+			isn't supported on all compilers.
+		UXPDS: compilation fixes from Diego R. Lopez.
+	CONFIG: FAX mailer wasn't setting .FAX as a pseudo-domain unless
+		you also had a FAX_RELAY.  From Thomas.Tornblom@Hax.SE.
+	CONFIG: Minor glitch in S21 -- attachment of local domain name
+		didn't have trailing dot.  From Jim Hickstein of Teradyne.
+	CONFIG: Fix best_mx_is_local feature to allow nested addresses such as
+		user%host@thishost.  From Claude Scarpelli of Infobiogen
+		(France).
+	CONFIG: OSTYPE(hpux10) failed to define the location of the help file.
+		Pointed out by Hannu Martikka of Nokia Telecommunications.
+	CONFIG: Diagnose some inappropriate ordering in configuration files,
+		such as FEATURE(smrsh) listed after MAILER(local).  Based on
+		a bug report submitted by Paul Hoffman of Proper Publishing.
+	CONFIG: Make OSTYPE files consistently not override settings that
+		have already been set.  Previously it worked differently
+		for different files.
+	CONFIG: Change relay mailer to do masquerading like 8.6 did.  My take
+		is that this is wrong, but the change was causing problems
+		for some people.  From Per Hedeland of Ericsson.
+	CONTRIB: bitdomain.c patch from John Gardiner Myers <jgm+@CMU.EDU>;
+		portability changes for Posix environments (no functional
+		changes).
+
+8.7.1/8.7.1	95/10/01
+	Old macros that have become options (SmtpGreetingMessage,
+		OperatorChars, and UnixFromLine) didn't allow backslash
+		escapes in the options, where they previously had.  Bug
+		pointed out by John Hawkinson of MIT.
+	Fix strange case of an executable called by a program map that
+		returns a value but also a non-zero exit status; this
+		would give contradictory results in the higher level; in
+		particular, the default clause in the map lookup would be
+		ignored.  Change to ignore the value if the program returns
+		non-zero exit status.  From Tom Moore of AT&T GIS.
+	Shorten parameters passed to syslog() in some contexts to avoid a
+		bug in many vendors' implementations of that routine.  Although
+		this isn't really a bug in sendmail per se, and my solution
+		has to assume that syslog() has at least a 1K buffer size
+		internally (I know some vendors have shortened this
+		dramatically -- they're on their own), sendmail is a popular
+		target.  Also, limit the size of %s arguments in sprintf.
+		These both have possible security implications.  Solutions
+		suggested by Casper Dik of Sun's Network Security Group
+		(Holland), Mark Seiden, and others.
+	Fix a problem that might cause a non-standard -B (body type)
+		parameter to be passed to the next server with undefined
+		results.  This could have security implications.
+	If a filesystem was at > 100% utilization, the freediskspace()
+		routine incorrectly returned an error rather than zero.
+		Problem noted by G. Paul Ziemba of Alantec.
+	Change MX sort order so that local hostnames (those in $=w) always
+		sort first within a given preference.  This forces the bestmx
+		map to always return the local host first, if it is included
+		in the list of highest priority MX records.  From K. Robert
+		Elz.
+	Avoid some possible null pointer dereferences.  Fixes from Randy
+		Martin <WOLF@CLEMSON.EDU>
+	When sendmail starts up on systems that have no fully qualified
+		domain name (FQDN) anywhere in the first matching host map
+		(e.g., /etc/hosts if the hosts service searches "files dns"),
+		sendmail would sleep to try to find a FQDN, which it really
+		really needs.  This has been changed to fall through to the
+		next map type if it can't find a FQDN -- i.e., if the hosts
+		file doesn't have a FQDN, it will try dns even though the
+		short name was found in /etc/hosts.  This is probably a crock,
+		but many people have hosts files without FQDNs.  Remember:
+		domain names are your friends.
+	Log a high-priority message if you can't find your FQDN during startup.
+		Suggested by Simon Barnes of Schlumberger Limited.
+	When using Hesiod, initialize it early to improve error reporting.
+		Patch from Don Lewis of Silicon Systems, Inc.
+	Apparently at least some versions of Linux have a 90 !minute! TCP
+		connection timeout in the kernel.  Add a new "connect" timeout
+		to limit this time.  Defaults to zero (use whatever the
+		kernel provides).  Based on code contributed by J.R. Oldroyd
+		of TerraNet.
+	Under some circumstances, a failed message would not be properly
+		removed from the queue, causing tons of bogus error messages.
+		(This fix eliminates the problematic EF_KEEPQUEUE flag.)
+		Problem noted by Allan E Johannesen and Gregory Neil Shapiro
+		of WPI.
+	PORTABILITY FIXES:
+		On IRIX 5.x, there was an inconsistency in the setting
+			of sendmail.st location.  Change the Makefile to
+			install it in /var/sendmail.st to match the OSTYPE
+			file and SGI standards.  From Andre
+			<andre@curry.zfe.siemens.de>.
+		Support for Fujitsu/ICL UXP/DS (For the DS/90 Series)
+			from Diego R. Lopez <drlopez@cica.es>.
+		Linux compilation patches from J.R. Oldroyd of TerraNet, Inc.
+		LUNA 2 Mach patches from Motonori Nakamura.
+		SunOS Makefile was including -ldbm, which is for the old
+			dbm library.  The ndbm library is part of libc.
+	CONFIG: avoid bouncing ``user@host.'' (note trailing dot) with
+		``local configuration error'' in nullclient configuration.
+		Patch from Gregory Neil Shapiro of WPI.
+	CONFIG: don't allow an alias file in nullclient configurations --
+		since all addresses are relayed, they give errors during
+		rebuild.  Suggested by Per Hedeland of Ericsson.
+	CONFIG: local mailer on Solaris 2 should always get a -f flag because
+		otherwise the F=S causes the From_ line to imply that root is
+		the sender.  Problem pointed out by Claude Scarpelli of
+		Infobiogen (France).
+	NEW FILES:
+		cf/feature/use_ct_file.m4 (omitted from 8.7 by mistake)
+		src/Makefiles/Makefile.KSR (omitted from 8.7 by mistake)
+		src/Makefiles/Makefile.UXPDS
+
+8.7/8.7		95/09/16
+	Fix a problem that could cause sendmail to run out of file
+		descriptors due to a trashed data structure after a
+		vfork.  Fix from Brian Coan of the Institute for
+		Global Communications.
+	Change the VRFY response if you have disabled VRFY -- some
+		people seemed to think that it was too rude.
+	Avoid reference to uninitialized file descriptor if HASFLOCK
+		was not defined.  This was used "safely" in the sense
+		that it only did a stat, but it would have set the
+		map modification time improperly.  Problem pointed out
+		by Roy Mongiovi of Georgia Tech.
+	Clean up the Subject: line on warning messages and return
+		receipts so that they don't say "Returned mail:"; this
+		can be confusing.
+	Move ruleset entry/exit debugging from 21.2 to 21.1 -- this is
+		useful enough to make it worthwhile printing on "-d".
+	Avoid logging alias statistics every time you read the alias
+		file on systems with no database method compiled in.
+	If you have a name with a trailing dot, and you try looking it
+		up using gethostbyname without the dot (for /etc/hosts
+		compatibility), be sure to turn off RES_DEFNAMES and
+		RES_DNSRCH to avoid finding the wrong name accidently.
+		Problem noted by Charles Amos of the University of
+		Maryland.
+	Don't do timeouts in collect if you are not running SMTP.
+		There is nothing that says you can't have a long
+		running program piped into sendmail (possibly via
+		/bin/mail, which just execs sendmail).  Problem reported
+		by Don "Truck" Lewis of Silicon Systems.
+	Try gethostbyname() even if the DNS lookup fails iff option I
+		is not set.  This allows you to have hosts listed in
+		NIS or /etc/hosts that are not known to DNS.  It's normally
+		a bad idea, but can be useful on firewall machines.  This
+		should really be broken out on a separate flag, I suppose.
+	Avoid compile warnings against BIND 4.9.3, which uses function
+		prototypes.  From Don Lewis of Silicon Systems.
+	Avoid possible incorrect diagnosis of DNS-related errors caused
+		by things like attempts to resolve uucp names using
+		$[ ... $] -- the fix is to clear h_errno at appropriate
+		times.  From Kyle Jones of UUNET.
+	SECURITY: avoid denial-of-service attacks possible by destroying
+		the alias database file by setting resource limits low.
+		This involves adding two new compile-time options:
+		HASSETRLIMIT (indicating that setrlimit(2) support is
+		available) and HASULIMIT (indicating that ulimit(2) support
+		is available -- the Release 3 form is used).  The former
+		is assumed on BSD-based systems, the latter on System
+		V-based systems.  Attack noted by Phil Brandenberger of
+		Swarthmore University.
+	New syntaxes in test (-bt) mode:
+		``.Dmvalue'' will define macro "m" to "value".
+		``.Ccvalue'' will add "value" to class "c".
+		``=Sruleset'' will dump the contents of the indicated
+			ruleset.
+		``=M'' will display the known mailers.
+		``-ddebug-spec'' is equivalent to the command-line
+			-d debug flag.
+		``$m'' will print the value of macro $m.
+		``$=c'' will print the contents of class $=c.
+		``/mx host'' returns the MX records for ``host''.
+		``/parse address'' will parse address, returning the value of
+			crackaddr (essentially, the comment information)
+			and the parsed address.
+		``/try mailer address'' will rewrite address into the form
+			it will have when presented to the indicated mailer.
+		``/tryflags flags'' will set flags used by parsing.  The
+			flags can be `H' for header or `E' for envelope,
+			and `S' for sender or `R' for recipient.  These
+			can be combined, so `HR' sets flags for header
+			recipients.
+		``/canon hostname'' will try to canonify hostname and
+			return the result.
+		``/map mapname key'' will look up `key' in the indicated
+			`mapname' and return the result.
+	Somewhat better handling of UNIX-domain socket addresses -- it
+		should show the pathname rather than hex bytes.
+	Restore ``-ba'' mode -- this reads a file from stdin and parses
+		the header for envelope sender information and uses
+		CR-LF as message terminators.  It was thought to be
+		obsolete (used only for Arpanet NCP protocols), but it
+		turns out that the UK ``Grey Book'' protocols require
+		that functionality.
+	Fix a fix in previous release -- if gethostname and gethostbyname
+		return a name without dots, and if an attempt to canonify
+		that name fails, wait one minute and try again.  This can
+		result in an extra 60 second delay on startup if your system
+		hostname (as returned by hostname(1)) has no dot and no names
+		listed in /etc/hosts or your NIS map have a dot.
+	Check for proper domain name on HELO and EHLO commands per
+		RFC 1123 section 5.2.5.  Problem noted by Thomas Dwyer III
+		of Michigan Technological University.
+	Relax chownsafe rules slightly -- old version said that if you
+		can't tell if _POSIX_CHOWN_RESTRICTED is set (that is,
+		if fpathconf returned EINVAL or ENOSYS), assume that
+		chown is not safe.  The new version falls back to whether
+		you are on a BSD system or not.  This is important for
+		SunOS, which apparently always returns one of those
+		error codes.  This impacts whether you can mail to files
+		or not.
+	Syntax errors such as unbalanced parentheses in the configuration
+		file could be omitted if you had "Oem" prior to the
+		syntax error in the config file.  Change to always print
+		the error message.  It was especially weird because it
+		would cause a "warning" message to be sent to the Postmaster
+		for every message sent (but with no transcript).  Problem
+		noted by Gregory Paris of Motorola.
+	Rewrite collect and putbody to handle full 8-bit data, including
+		zero bytes.  These changes are internally extensive, but
+		should have minimal impact on external function.
+	Allow full words for option names -- if the option letter is
+		(apparently) a space, then take the word following -- e.g.,
+			O MatchGECOS=TRUE
+		The full list of old and new names is as follows:
+			7	SevenBitInput
+			8	EightBitMode
+			A	AliasFile
+			a	AliasWait
+			B	BlankSub
+			b	MinFreeBlocks/MaxMessageSize
+			C	CheckpointInterval
+			c	HoldExpensive
+			D	AutoRebuildAliases
+			d	DeliveryMode
+			E	ErrorHeader
+			e	ErrorMode
+			f	SaveFromLine
+			F	TempFileMode
+			G	MatchGECOS
+			H	HelpFile
+			h	MaxHopCount
+			i	IgnoreDots
+			I	ResolverOptions
+			J	ForwardPath
+			j	SendMimeErrors
+			k	ConnectionCacheSize
+			K	ConnectionCacheTimeout
+			L	LogLevel
+			l	UseErrorsTo
+			m	MeToo
+			n	CheckAliases
+			O	DaemonPortOptions
+			o	OldStyleHeaders
+			P	PostmasterCopy
+			p	PrivacyOptions
+			Q	QueueDirectory
+			q	QueueFactor
+			R	DontPruneRoutes
+			r, T	Timeout
+			S	StatusFile
+			s	SuperSafe
+			t	TimeZoneSpec
+			u	DefaultUser
+			U	UserDatabaseSpec
+			V	FallbackMXhost
+			v	Verbose
+			w	TryNullMXList
+			x	QueueLA
+			X	RefuseLA
+			Y	ForkEachJob
+			y	RecipientFactor
+			z	ClassFactor
+			Z	RetryFactor
+		The old macros that passed information into sendmail have
+		been changed to options; those correspondences are:
+			$e	SmtpGreetingMessage
+			$l	UnixFromLine
+			$o	OperatorChars
+			$q	(deleted -- not necessary)
+		To avoid possible problems with an older sendmail,
+		configuration level 6 is accepted by this version of
+		sendmail; any config file using the new names should
+		specify "V6" in the configuration.
+	Change address parsing to properly note that a phrase before a
+		colon and a trailing semicolon are essentially the same
+		as text outside of angle brackets (i.e., sendmail should
+		treat them as comments).  This is to handle the
+		``group name: addr1, addr2, ..., addrN;'' syntax (it will
+		assume that ``group name:'' is a comment on the first
+		address and the ``;'' is a comment on the last address).
+		This requires config file support to get right.  It does
+		understand that :: is NOT this syntax, and can be turned
+		off completely by setting the ColonOkInAddresses option.
+	Level 6 config files added with new mailer flags:
+		    A	Addresses are aliasable.
+		    i	Do udb rewriting on envelope as well as header
+			sender lines.  Applies to the from address mailer
+			flags rather than the recipient mailer flags.
+		    j	Do udb rewriting on header recipient addresses.
+			Applies to the sender mailer flags rather than the
+			recipient mailer flags.
+		    k	Disable check for loops when doing HELO command.
+		    o	Always run as the mail recipient, even on local
+			delivery.
+		    w	Check for an /etc/passwd entry for this user.
+		    5	Pass addresses through ruleset 5.
+		    :	Check for :include: on this address.
+		    |	Check for |program on this address.
+		    /	Check for /file on this address.
+		    @	Look up sender header addresses in the user
+			database.  Applies to the mailer flags for the
+			mailer corresponding to the envelope sender
+			address, rather than to recipient mailer flags.
+		Pre-level 6 configuration files set A, w, 5, :, |, /, and @
+		on the "local" mailer, the o flag on the "prog" and "*file*"
+		mailers, and the ColonOkInAddresses option.
+	Eight-to-seven bit MIME conversions.  This borrows ideas from
+		John Beck of Hewlett-Packard, who generously contributed
+		their implementation to me, which I then didn't use (see
+		mime.c for an explanation of why).  This adds the
+		EightBitMode option (a.k.a. `8') and an F=8 mailer flag
+		to control handling of 8-bit data.  These have to cope with
+		two types of 8-bit data: unlabelled 8-bit data (that is,
+		8-bit data that is entered without declaring it as 8-bit
+		MIME -- technically this is illegal according to the
+		specs) and labelled 8-bit data (that is, it was declared
+		as 8BITMIME in the ESMTP session or by using the
+		-B8BITMIME command line flag).  If the F=8 mailer flag is
+		set then 8-bit data is sent to non-8BITMIME machines
+		instead of converting to 7 bit (essentially using
+		just-send-8 semantics).  The values for EightBitMode are:
+		    m	convert unlabelled 8-bit input to 8BITMIME, and do
+			any necessary conversion of 8BITMIME to 7BIT
+			(essentially, the full MIME option).
+		    p	pass unlabelled 8-bit input, but convert labelled
+			8BITMIME input to 7BIT as required (default).
+		    s	strict adherence: reject unlabelled 8-bit input,
+			convert 8BITMIME to 7BIT as required.  The F=8
+			flag is ignored.
+		Unlabelled 8-bit data is rejected in mode `s' regardless of
+			the setting of F=8.
+	Add new internal class 'n', which is the set of MIME Content-Types
+		which can not be 8 to 7 bit encoded because of other
+		considerations.  Types "multipart/*" and "message/*" are
+		never directly encoded (although their components can be).
+	Add new internal class 's', which is the set of subtypes of the
+		MIME message/* content type that can be treated as though
+		they are an RFC822 message.  It is predefined to have
+		"rfc822".  Suggested By Kari Hurtta.
+	Add new internal class 'e'.  This is the set of MIME
+		Content-Transfer-Encodings that can be converted to
+		a seven bit format (Quoted-Printable or Base64).  It is
+		preinitialized to contain "7bit", "8bit", and "binary".
+	Add C=charset mailer parameter and the the DefaultCharSet option (no
+		short name) to set the default character set to use in the
+		Content-Type: header when doing encoding of an 8-bit message
+		which isn't marked as MIME into MIME format.  If the C=
+		parameter is set on the Envelope From address, use that as
+		the default encoding; else use the DefaultCharSet option.
+		If neither is set, it defaults to "unknown-8bit" as
+		suggested by RFC 1428 section 3.
+	Allow ``U=user:group'' field in mailer definition to set a default
+		user and group that a mailer will be executed as.  This
+		overrides the 'u' and 'g' options, and if the `F=S' flag is
+		also set, it is the uid/gid that will always be used (that
+		is, the controlling address is ignored).  The values may be
+		numeric or symbolic; if only a symbolic user is given (no
+		group) that user's default group in the passwd file is used
+		as the group.  Based on code donated by Chip Rosenthal of
+		Unicom.
+	Allow `u' option to also accept user:group as a value, in the same
+		fashion as the U= mailer option.
+	Add the symbolic time zone name in the Arpanet format dates (as
+		a comment).  This adds a new compile-time configuration
+		flag: TZ_TYPE can be set to TZ_TM_NAME (use the value
+		of (struct tm *)->tm_name), TZ_TM_ZONE (use the value
+		of (struct tm *)->tm_zone), TZ_TZNAME (use extern char
+		*tzname[(struct tm *)->tm_isdst]), TZ_TIMEZONE (use
+		timezone()), or TZ_NONE (don't include the comment).  Code
+		from Chip Rosenthal.
+	The "Timeout" option (formerly "r") is extended to allow suboptions.
+		For example,
+		    O Timeout.helo = 2m
+		There are also two new suboptions "queuereturn" and
+		"queuewarn"; these subsume the old T option.  Thus, to
+		set them both the preferred new syntax is
+		    O Timeout.queuereturn = 5d
+		    O Timeout.queuewarn = 4h
+	Sort queue by host name instead of by message priority if the
+		QueueSortOrder option (no short name) is set is set to
+		``host''.  This makes better use of the connection cache,
+		but may delay more ``interactive'' messages behind large
+		backlogs under some circumstances.  This is probably a
+		good option if you have high speed links or don't do lots
+		of ``batch'' messages, but less good if you are using
+		something like PPP on a 14.4 modem.  Based on code
+		contributed by Roy Mongiovi of Georgia Tech (my main
+		contribution was to make it configurable).
+	Save i-number of df file in qf file to simplify rebuilding of queue
+		after disasterous disk crash.  Suggested by Kyle Jones of
+		UUNET; closely based on code from KJS DECWRL code written
+		by Paul Vixie.  NOTA BENE: The qf files produced by 8.7
+		are NOT back compatible with 8.6 -- that is, you can convert
+		from 8.6 to 8.7, but not the other direction.
+	Add ``F=d'' mailer flag to disable all use of angle brackets in
+		route-addrs in envelopes; this is because in some cases
+		they can be sent to the shell, which interprets them as
+		I/O redirection.
+	Don't include error file (option E) with return-receipts; this
+		can be confusing.
+	Don't send "Warning: cannot send" messages to owner-* or
+		*-request addresses.  Suggested by Christophe Wolfhugel
+		of the Institut Pasteur, Paris.
+	Allow -O command line flag to set long form options.
+	Add "MinQueueAge" option to set the minimum time between attempts
+		to run the queue.  For example, if the queue interval
+		(-q value) is five minutes, but the minimum queue age
+		is fifteen minutes, jobs won't be tried more often than
+		once every fifteen minutes.  This can be used to give
+		you more responsiveness if your delivery mode is set to
+		queue-only.
+	Allow "fileopen" timeout (default: 60 seconds) for opening
+		:include: and .forward files.
+	Add "-k", "-v", and "-z" flags to map definitions; these set the
+		key field name, the value field name, and the field
+		delimiter.  The field delimiter can be a single character
+		or the sequence "\t" or "\n" for tab or newline.
+		These are for use by NIS+ and similar access methods.
+	Change maps to always strip quotes before lookups; the -q flag
+		turns off this behaviour.  Suggested by Motonori Nakamura.
+	Add "nisplus" map class.  Takes -k and -v flags to choose the
+		key and value field names respectively.  Code donated by
+		Sun Microsystems.
+	Add "hesiod" map class.  The "file name" is used as the
+		"HesiodNameType" parameter to hes_resolve(3).  Returns the
+		first value found for the match.  Code donated by Scott
+		Hutton of Indiana University.
+	Add "netinfo" (NeXT NetInfo) map class.  Maps can have a -k flag to
+		specify the name of the property that is searched as the
+		key and a -v flag to specify the name of the property that
+		is returned as the value (defaults to "members").  The
+		default map is "/aliases".  Some code based on code
+		contributed by Robert La Ferla of Hot Software.
+	Add "text" map class.  This does slow, linear searches through
+		text files.  The -z flag specifies a column delimiter
+		(defaults to any sequence of white space), the -k flag
+		sets the key column number, and the -v flag sets the
+		value column number.  Lines beginning with `#' are treated
+		as comments.
+	Add "program" map class to execute arbitrary programs.  The search
+		key is presented as the last argument; the output is one
+		line read from the programs standard output.  Exit statuses
+		are from sysexits.h.
+	Add "sequence" map class -- searches maps in sequence until it
+		finds a match.  For example, the declarations:
+		    Kmap1 ...
+		    Kmap2 ...
+		    Kmapseq sequence map1 map2
+		defines a map "mapseq" that first searches map1; if the
+		value is found it is returned immediately, otherwise
+		map2 is searched and the value returned.
+	Add "switch" map class.  This is much like "sequence" except that
+		the ordering is fetched from an external file, usually
+		the system service switch.  The parameter is the name of
+		the service to switch on, and the maps that it will use
+		are the name of the switch map followed by ".service_type".
+		For example, if the declaration of the map is
+		    Ksample switch hosts
+		and the system service switch specifies that hosts are
+		looked up using dns and nis in that order, then this is
+		equivalent to
+		    Ksample sequence sample.dns sample.nis
+		The subordinate maps (sample.*) must already be defined.
+	Add "user" map class -- looks up users using getpwnam.  Takes a
+		"-v field" flag on the definition that tells what passwd
+		entry to return -- legal values are name, passwd, uid, gid,
+		gecos, dir, and shell.  Generally expected to be used with
+		the -m (matchonly) flag.
+	Add "bestmx" map class -- returns the best MX value for the host
+		listed as the value.  If there are several "best" MX records
+		for this host, one will be chosen at random.
+	Add "userdb" map class -- looks up entries in the user database.
+		The "file name" is actually the tag that will be used,
+		typically "mailname".  If there are multiple entries
+		matching the name, the one chosen is undefined.
+	Add multiple queue timeouts (both return and warning).  These are
+		set by the Precedence: or Priority: header fields to one of
+		three values.  If a Priority: is set and has value "normal",
+		"urgent", or "non-urgent" the corresponding timeouts are 
+		used.  If no priority is set, the Precedence: is consulted;
+		if negative, non-urgent timeouts are used; if greater than
+		zero, urgent timeouts are used.  Otherwise, normal timeouts
+		are used.  The timeouts are set by setting the six timeouts
+		queue{warn,return}.{urgent,normal,non-urgent}.
+	Fix problem when a mail address is resolved to a $#error mailer
+		with a temporary failure indication; it works in SMTP,
+		but when delivering locally the mail is silently discarded.
+		This patch, from Kyle Jones of UUNET, bounces it instead
+		of queueing it (queueing is very hard).
+	When using /etc/hosts or NIS-style lookups, don't assume that
+		the first name in the list is the best one -- instead,
+		search for the first one with a dot.  For example, if
+		an /etc/hosts entry reads
+		    128.32.149.68	mammoth mammoth.CS.Berkeley.EDU
+		this change will use the second name as the canonical
+		machine name instead of the initial, unqualified name.
+	Change dequote map to replace spaces in quoted text with a value
+		indicated by the -s flag on the dequote map definition.
+		For example, ``Mdequote dequote -s_'' will change
+		"Foo Bar" into an unquoted Foo_Bar instead of leaving it
+		quoted (because of the space character).  Suggested by Dan
+		Oscarsson for use in X.400 addresses.
+	Implement long macro names as ${name}; long class names can
+		be similarly referenced as $={name} and $~{name}.
+		Definitions are (e.g.) ``D{name}value''.  Names that have
+		a leading lower case letter or punctuation characters are
+		reserved for internal use by sendmail; i.e., config files
+		should use names that begin with a capital letter.  Based
+		on code contributed by Dan Oscarsson.
+	Fix core dump if getgrgid returns a null group list (as opposed
+		to an empty group list, that is, a pointer to a list
+		with no members).  Fix from Andrew Chang of Sun Microsystems.
+	Fix possible core dump if malloc fails -- if the malloc in xalloc
+		failed, it called syserr which called newstr which called
+		xalloc....  The newstr is now avoided for "panic" messages.
+		Reported by Stuart Kemp of James Cook University.
+	Improve connection cache timeouts; previously, they were not even
+		checked if you were delivering to anything other than an
+		IPC-connected host, so a series of (say) local mail
+		deliveries could cause cached connections to be open
+		much longer than the specified timeout.
+	If an incoming message exceeds the maximum message size, stop
+		writing the incoming bytes to the queue data file, since
+		this can fill your mqueue partition -- this is a possible
+		denial-of-service attack.
+	Don't reject all numeric local user names unless HESIOD is
+		defined.  It turns out that Posix allows all-numeric
+		user names.  Fix from Tony Sanders of BSDI.
+	Add service switch support.  If the local OS has a service
+		switch (e.g., /etc/nsswitch.conf on Solaris or /etc/svc.conf
+		on DEC systems) that will be used; otherwise, it falls back
+		to using a local mechanism based on the ServiceSwitchFile
+		option (default: /etc/service.switch).  For example, if the
+		service switch lists "files" and "nis" for the aliases
+		service, that will be the default lookup order.  the "files"
+		("local" on DEC) service type expands to any alias files
+		you listed in the configuration file, even if they aren't
+		actually file lookups.
+	Option I (NameServerOptions) no longer sets the "UseNameServer"
+		variable which tells whether or not DNS should be considered
+		canonical.  This is now determined based on whether or not
+		"dns" is in the service list for "hosts".
+	Add preliminary support for the ESMTP "DSN" extension (Delivery
+		Status Notifications).  DSN notifications override
+		Return-Receipt-To: headers, which are bogus anyhow --
+		support for them has been removed.
+	Add T=mts-name-type/address-type/diagnostic-type keyletter to mailer
+		definitions to define the types used in DSN returns for
+		MTA names, addresses, and diagnostics respectively.
+	Extend heuristic to force running in ESMTP mode to look for the
+		five-character string "ESMTP" anywhere in the 220 greeting
+		message (not just the second line).  This is to provide
+		better compatibility with other ESMTP servers.
+	Print sequence number of job when running the queue so you can
+		easily see how much progress you have made.  Suggested
+		by Peter Wemm of DIALix.
+	Map newlines to spaces in logged message-ids; some versions of
+		syslog truncate the rest of the line after newlines.
+		Suggested by Fletcher Mattox of U. Texas.
+	Move up forking for job runs so that if a message is split into
+		multiple envelopes you don't get "fork storms" -- this
+		also improves the connection cache utilization.
+	Accept "<<>>", "<<<>>>", and so forth as equivalent to "<>" for
+		the purposes of refusing to send error returns.  Suggested
+		by Motonori Nakamura of Ritsumeikan University.
+	Relax rules on when a file can be written when referenced from
+		the aliases file: use the default uid/gid instead of the
+		real uid/gid.  This allows you to create a file owned by
+		and writable only by the default uid/gid that will work
+		all the time (without having the setuid bit set).  Change
+		suggested by Shau-Ping Lo and Andrew Cheng of Sun
+		Microsystems.
+	Add "DialDelay" option (no short name) to provide an "extra"
+		delay for dial on demand systems.  If this is non-zero
+		and a connect fails, sendmail will wait this long and
+		then try again.  If it takes longer than the kernel
+		timeout interval to establish the connection, this
+		option can give the network software time to establish
+		the link.  The default units are seconds.
+	Move logging of sender information to be as early as possible;
+		previously, it could be delayed a while for SMTP mail
+		sent to aliases.  Suggested by Brad Knowles of the
+		Defense Information Systems Agency.
+	Call res_init() before setting RES_DEBUG; this is required by
+		BIND 4.9.3, or so I'm told.  From Douglas Anderson of
+		the National Computer Security Center.
+	Add xdelay= field in logs -- this is a transaction delay, telling
+		you how long it took to deliver to this address on the
+		last try.  It is intended to be used for sorting mailing
+		lists to favor "quick" addresses.  Provided for use by
+		the mailprio scripts (see below).
+	If a map cannot be opened, and that map is non-optional, and
+		an address requires that map for resolution, queue the
+		map instead of bouncing it.  This involves creating a
+		pseudo-class of maps called "bogus-map" -- if a required
+		map cannot be opened, the class is changed to bogus-map;
+		all queries against bogus-map return "tempfail".  The
+		bogus-map class is not directly accessible.  A sample
+		implementation was donated by Jem Taylor of Glasgow
+		University Computing Service.
+	Fix a possible core dump when mailing to a program that talks
+		SMTP on its standard input.  Fix from Keith Moore of
+		the University of Kentucky.
+	Make it possible to resolve filenames to $#local $: @ /filename;
+		previously, the "@" would cause it to not be recognized
+		as a file.  Problem noted by Brian Hill of U.C. Davis.
+	Accept a -1 signal to re-exec the daemon.  This only works if
+		argv[0] is a full path to sendmail.
+	Fix bug in "addr=..." field in O option on little-endian machines
+		-- the network number wasn't being converted to network
+		byte order.  Patch from Kurt Lidl of Pix Technologies
+		Corporation.
+	Pre-initialize the resolver early on; this is to avoid a bug with
+		BIND 4.9.3 that can cause the _res.retry field to get
+		reset to zero, causing all name server lookups to time
+		out.  Fix from Matt Day of Artisoft.
+	Restore T line (trusted users) in config file -- but instead of
+		locking out the -f flag, they just tell whether or not
+		an X-Authentication-Warning: will be added.  This really
+		just creates new entries in class 't', so "Ft/file/name"
+		can be used to read trusted user names from a file.
+		Trusted users are also allowed to execute programs even
+		if they have a shell that isn't in /etc/shells.
+	Improve NEWDB alias file rebuilding so it will create them
+		properly if they do not already exist.  This had been
+		a MAYBENEXTRELEASE feature in 8.6.9.
+	Check for @:@ entry in NIS maps before starting up to avoid
+		(but not prevent, sigh) race conditions.  This ought to
+		be handled properly in ypserv, but isn't.  Suggested by
+		Michael Beirne of Motorola.
+	Refuse connections if there isn't enough space on the filesystem
+		holding the queue.  Contributed by Robert Dana of Wolf
+		Communications.
+	Skip checking for directory permissions in the path to a file
+		when checking for file permissions iff setreuid()
+		succeeded -- it is unnecessary in that case.  This avoids
+		significant performance problems when looking for .forward
+		files.  Based on a suggestion by Win Bent of USC.
+	Allow symbolic ruleset names.  Syntax can be "Sname" to get an
+		arbitrary ruleset number assigned or "Sname = integer"
+		to assign a specific ruleset number.  Reference is
+		$>name_or_number.  Names can be composed of alphas, digits,
+		underscore, or hyphen (first character must be non-numeric).
+	Allow -o flag on AliasFile lines to make the alias file optional.
+		From Bryan Costales of ICSI.
+	Add NoRecipientAction option to handle the case where there is
+		no legal recipient header in the message.  It can take
+		on values:
+		  None			Leave the message as is.  The
+					message will be passed on even
+					though it is in technically
+					illegal syntax.
+		  Add-To		Add a To: header with any
+					recipients that it can find from
+					the envelope.  This risks exposing
+					Bcc: recipients.
+		  Add-Apparently-To	Add an Apparently-To: header.  This
+					has almost no redeeming social value,
+					and is provided only for back
+					compatibility.
+		  Add-To-Undisclosed	Add a header reading
+					To: undisclosed-recipients:;
+					which will have the effect of
+					making the message legal without
+					exposing Bcc: recipients.
+		  Add-Bcc		To add an empty Bcc: header.
+					There is a chance that mailers down
+					the line will delete this header,
+					which could cause exposure of Bcc:
+					recipients.
+		The default is NoRecipientAction=None.
+	Truncate (rather than delete) Bcc: lines in the header.  This
+		should prevent later sendmails (at least, those that don't
+		themselves delete Bcc:) from considering this message to
+		be non-conforming -- although it does imply that non-blind
+		recipients can see that a Bcc: was sent, albeit not to whom.
+	Add SafeFileEnvironment option.  If declared, files named as delivery
+		targets must be regular files in addition to the regular
+		checks.  Also, if the option is non-null then it is used as
+		the name of a directory that is used as a chroot(2)
+		environment for the delivery; the file names listed in an
+		alias or forward should include the name of this root.
+		For example, if you run with
+			O SafeFileEnvironment=/arch
+		then aliases should reference "/arch/rest/of/path".  If a
+		value is given, sendmail also won't try to save to
+		/usr/tmp/dead.letter (instead it just leaves the job in the
+		queue as Qfxxxxxx).  Inspired by *Hobbit*'s sendmail patch kit.
+	Support -A flag for alias files; this will comma concatenate like
+		entries.  For example, given the aliases:
+			list: member1
+			list: member2
+		and an alias file declared as:
+			OAhash:-A /etc/aliases
+		the final alias inserted will be "list: member1,member2";
+		without -A you will get an error on the second and subsequent
+		alias for "list".  Contributed by Bryan Costales of ICSI.
+	Line-buffer transcript file.  Suggested by Liudvikas Bukys.
+	Fix a problem that could cause very long addresses to core dump in
+		some special circumstances.  Problem pointed out by Allan
+		Johannesen.
+	(Internal change.)  Change interface to expand() (macro expansion)
+		to be simpler and more consistent.
+	Delete check for funny qf file names.  This didn't really give
+		any extra security and caused some people some problems.
+		(If you -really- want this, define PICKY_QF_NAME_CHECK
+		at compile time.)  Suggested by Kyle Jones of UUNET.
+	(Internal change.)  Change EF_NORETURN to EF_NO_BODY_RETN and
+		merge with DSN code; this is simpler and more consistent.
+		This may affect some people who have written their own
+		checkcompat() routine.
+	(Internal change.)  Eliminate `D' line in qf file.  The df file
+		is now assumed to be the same name as the qf file (with
+		the `q' changed to a `d', of course).
+	Avoid forking for delivery if all recipient mailers are marked as
+		"expensive" -- this can be a major cost on some systems.
+		Essentially, this forces sendmail into "queue only" mode
+		if all it is going to do is queue anyway.
+	Avoid sending a null message in some rather unusual circumstances
+		(specifically, the RCPT command returns a temporary
+		failure but the connection is lost before the DATA
+		command).  Fix from Scott Hammond of Secure Computing
+		Corporation.
+	Change makesendmail to use a somewhat more rational naming scheme:
+		Makefiles and obj directories are named $os.$rel.$arch,
+		where $os is the operating system (e.g., SunOS), $rel is
+		the release number (e.g., 5.3), and $arch is the machine
+		architecture (e.g., sun4).  Any of these can be omitted,
+		and anything after the first dot in a release number can
+		be replaced with "x" (e.g., SunOS.4.x.sun4).  The previous
+		version used $os.$arch.$rel and was rather less general.
+	Change makesendmail to do a "make depend" in the target directory
+		when it is being created.  This involves adding an empty
+		"depend:" entry in most Makefiles.
+	Ignore IDENT return value if the OSTYPE field returns "OTHER",
+		as indicated by RFC 1413.  Pointed out by Kari Hurtta
+		of the Finnish Meteorological Institute.
+	Fix problem that could cause multiple responses to DATA command
+		on header syntax errors (e.g., lines beginning with colons).
+		Problem noted by Jens Thomassen of the University of Oslo.
+	Don't let null bytes in headers cause truncation of the rest of
+		the header.
+	Log Authentication-Warning:s.  Suggested by Motonori Nakamura.
+	Increase timeouts on message data puts to allow time for receivers
+		to canonify addresses in headers on the fly.  This is still
+		a rather ugly heuristic.  From Motonori Nakamura.
+	Add "HasWildcardMX" suboption to ResolverOptions; if set, MX
+		records are not used when canonifying names, and when MX
+		lookups are done for addressing they must be fully
+		qualified.  This is useful if you have a wildcard MX record,
+		although it may cause other problems.  In general, don't use
+		wildcard MX records.  Patch from Motonori Nakamura.
+	Eliminate default two-line SMTP greeting message.  Instead of
+		adding an extra "ESMTP spoken here" line, the word "ESMTP"
+		is added between the first and second word of the first
+		line of the greeting message (i.e., immediately after the
+		host name).  This eliminates the need for the BROKEN_SMTP_PEERS
+		compile flag.  Old sendmails won't see the ESMTP, but that's
+		acceptable because SIZE was the only useful extension that
+		old sendmails understand.
+	Avoid gethostbyname calls on UNIX domain sockets during SIGUSR1
+		invoked state dumps.  From Masaharu Onishi.
+	Allow on-line comments in .forward and :include: files; they are
+		introduced by the string "<LWSP>#@#<LWSP>", where <LWSP>
+		is a space or a tab.  This is intended for native
+		representation of non-ASCII sets such as Japanese, where
+		existing encodings would be unreadable or would lose
+		data -- for example,
+		 <motonori@cs.ritsumei.ac.jp> NAKAMURA Motonori
+					(romanized/less information)
+		 <motonori@cs.ritsumei.ac.jp> =?ISO-2022-JP?B?GyRCQ2ZCPBsoQg==?=
+					      =?ISO-2022-JP?B?GyRCQUdFNRsoQg==?=
+					(with MIME encoding, not human readable)
+		 <motonori@cs.ritsumei.ac.jp> #@# ^[$BCfB<^[(B ^[$BAGE5^[(B
+					(native encoding with ISO-2022-JP)
+		The last form is human readable in the Japanese environment.
+		Based on a fix from (surprise!) Motonori Nakamura.
+	Don't make SMTP error returns on MAIL FROM: line be "sticky" for all
+		messages to that host; these are most frequently associated
+		with addresses rather than the host, with the exception of
+		421 (service shutting down).  The effect was to cause queues
+		to sometimes take an excessive time to flush.  Reported by
+		Robert Sargent of Southern Geographics Technologies and
+		Eric Prestemon of American University.
+	Add Nice=N mailer option to set the niceness at which a mailer will
+		run.  This is actually a relative niceness (that is, an
+		increment on the background value).
+	Log queue runs that are skipped due to high loads.  They are logged
+		at LOG_INFO priority iff the log level is > 8.  Contributed
+		by Bruce Nagel of Data General.
+	Allow the error mailer to accept a DSN-style error status code
+		instead of an sysexits status code in the host part.
+		Anything with a dot will be interpreted as a DSN-style code.
+	Add new mailer flag: F=3 will tell translations to Quoted-Printable
+		to encode characters that might be munged by an EBCDIC system
+		in addition to the set required by RFC 1521.  The additional
+		characters are !, ", #, $, @, [, \, ], ^, `, {, |, }, and ~.
+		(Think of "IBM 360" as the mnemonic for this flag.)
+	Change check for mailing to files to look for a pathname of [FILE]
+		rather than looking for the mailer named *file*.  The mapping
+		of leading slashes still goes to the *file* mailer.  This
+		allows you to implement the *file* mailer as a separate
+		program, for example, to insert a Content-Length: header
+		or do special security policy.  However, note that the usual
+		initial checking for the file permissions is still done, and
+		the program in question needs to be very careful about how
+		it does the file write to avoid security problems.
+	Be able to read ~root/.forward even if the path isn't accessible to
+		regular users.  This is disrecommended because sendmail
+		sometimes does not run as root (e.g., when an unsafe option
+		is specified on the command line), but should otherwise be
+		safe because .forward files must be owned by the user for
+		whom mail is being forwarded, and cannot be a symbolic link.
+		Suggested by Forrest Aldrich of Wang Laboratories.
+	Add new "HostsFile" option that is the pathname to the /etc/hosts
+		file.  This is used for canonifying hostnames when the
+		service type is "files".
+	Implement programs on F (read class from file) line.  The syntax is
+		Fc|/path/to/program to read the output from the program
+		into class "c".
+	Probe the network interfaces to find alternate names for this
+		host.  Requires the SIOCGIFCONF ioctl call.  Code
+		contributed by SunSoft.
+	Add "E" configuration line to set or propogate environment
+		variables into children.  "E<envar>" will propogate
+		the named variable from the environment when sendmail
+		was invoked into any children it calls; "E<envar>=<value>"
+		sets the named variable to the indicated value.  Any
+		variables not explicitly named will not be in the child
+		environment.  However, sendmail still forces an
+		"AGENT=sendmail" environment variable, in part to enforce
+		at least one environment variable, since many programs and
+		libraries die horribly if this is not guaranteed.
+	Change heuristic for rebuilding both NEWDB and NDBM versions of
+		alias databases -- new algorithm looks for the substring
+		"/yp/" in the file name.  This is more portable and involves
+		less overhead.  Suggested by Motonori Nakamura.
+	Dynamically allocate the queue work list so that you don't lose
+		jobs in large queue runs.  The old QUEUESIZE compile parameter
+		is replaced by QUEUESEGSIZE (the unit of allocation, which
+		should not need to be changed) and the MaxQueueRunSize option,
+		which is the absolute maximum number of jobs that will ever
+		be handled in a single queue run.  Based on code contributed
+		by Brian Coan of the Institute for Global Communications.
+	Log message when a message is dropped because it exceeds the maximum
+		message size.  Suggested by Leo Bicknell of Virginia Tech.
+	Allow trusted users (those on a T line or in $=t) to use -bs without
+		an X-Authentication-Warning: added.  Suggested by Mark Thomas
+		of Mark G. Thomas Consulting.
+	Announce state of compile flags on -d0.1 (-d0.10 throws in the
+		OS-dependent defines).  The old semantic of -d0.1 to not
+		run the daemon in background has been moved to -d99.100,
+		and the old 52.5 flag (to avoid disconnect() from closing
+		all output files) has been moved to 52.100.  This makes
+		things more consistent (flags below .100 don't change
+		semantics) and separates out the backgrounding so that
+		it doesn't happen automatically on other unrelated debugging
+		flags.
+	If -t is used but no addresses are found in the header, give an
+		error message rather than just doing nothing.  Fix from
+		Motonori Nakamura.
+	On systems (like SunOS) where the effective gid is not necessarily
+		included in the group list returned by getgroups(), the
+		`restrictmailq' option could sometimes cause an authorized
+		user to not be able to use `mailq'.  Fix from Charles Hannum
+		of MIT.
+	Allow symbolic service names for [IPC] mailers.  Suggested by
+		Gerry Magennis of Logica International.
+	Add DontExpandCnames option to prevent $[ ... $] from expanding CNAMEs
+		when running DNS.  For example, if the name FTP.Foo.ORG is
+		a CNAME for Cruft.Foo.ORG, then when sitting on a machine in
+		the Foo.ORG domain a lookup of "FTP" returns "Cruft.Foo.ORG"
+		if this option is not set, or "FTP.Foo.ORG" if it is set.
+		This is technically illegal under RFC 822 and 1123, but the
+		IETF is moving toward legalizing it.  Note that turning on
+		this option is not sufficient to guarantee that a downstream
+		neighbor won't rewrite the address for you.
+	Add "-m" flag to makesendmail script -- this tells you what object
+		directory and Makefile it will use, but doesn't actually do
+		the make.
+	Do some additional checking on the contents of the qf file to try
+		to detect attacks against the qf file.  In particular,
+		abort on any line beginning "From ", and add an "end of
+		file" line -- any data after that line is prohibited.
+	Always use /etc/sendmail.cf, regardless of the arbitrary vendor
+		choices.  This can be overridden in the Makefile by using
+		either -DUSE_VENDOR_CF_PATH to get the vendor location
+		(to the extent that we know it) or by defining
+		_PATH_SENDMAILCF (which is a "hard override").  This allows
+		sendmail 8 to have more consistent installation instructions.
+	Allow macros on `K' line in config file.  Suggested by Andrew Chang
+		of Sun Microsystems.
+	Improved symbol table hash function from Eric Wassenaar.  This one
+		is at least 50% faster.
+	Fix problem that didn't notice that timeout on file open was a
+		transient error.  Fix from Larry Parmelee of Cornell
+		University.
+	Allow comments (lines beginning with a `#') in files read for
+		classes.  Suggested by Motonori Nakamura.
+	Make SIGINT (usually ^C) in test mode return to the prompt instead
+		of dropping out entirely.  This makes testing some of the
+		name server lookups easier to deal with when there are
+		hung servers.  From Motonori Nakamura.
+	Add new ${opMode} macro that is set to the current operation mode
+		(e.g., `s' for -bs, `t' for -bt, etc.).  Suggested by
+		Claude Marinier <MARINIER@emp.ewd.dreo.dnd.ca>.
+	Add new delivery mode (Odd) that defers all map lookups to queue runs.
+		Kind of like queue-only mode (Odq) except it tries to avoid
+		any external service requests; for dial-on-demand hosts that
+		want to minimize DNS lookups when mail is being queued.  For
+		this to work you will also have to make sure that gethostbyname
+		of your local host name does not do a DNS lookup.
+	Improved handling of "out of space" conditions from John Myers of
+		Carnegie Mellon.
+	Improved security for mailing to files on systems that have fchmod(2)
+		support.
+	Improve "cannot send message for N days" message -- now says "could
+		not send for past N days".  Suggested by Tom Moore of AT&T
+		Global Information Solutions.
+	Less misleading Subject: line on messages sent to postmaster only.
+		From Motonori Nakamura.
+	Avoid duplicate error messages on bad command line flags.  From
+		Motonori Nakamura.
+	Better error message for case where ruleset 0 falls off the end
+		or otherwise does not resolve to a canonical triple.
+	Fix a problem that could cause multiple bounce messages if a bad
+		address was sent along with a good address to an SMTP
+		site where that SMTP site returned a 4yz code in response
+		to the final dot of the data.  Problem reported by David
+		James of British Telecom.
+	Add "volatile" declarations so that gcc -O2 will work.  Patches
+		from Alexander Dupuy of System Management ARTS.
+	Delete duplicates in MX lists -- believe it or not, there are sites
+		that list the same host twice in an MX list.  This deletion
+		only works on adjacent preferences, so an MX list that
+		had A=5, B=10, A=15 would leave both As, but one that had
+		A=5, A=10, B=15 would reduce to A, B.  This is intentional,
+		just in case there is something weird I haven't thought of.
+		Suggested by Barry Shein of Software Tool & Die.
+	SECURITY: .forward files cannot be symbolic links.  If they are,
+		a bad guy can read your private files.
+	PORTABILITY FIXES:
+		Solaris 2 from Rob McMahon <cudcv@csv.warwick.ac.uk>.
+		System V Release 4 from Motonori Nakamura of Ritsumeikan
+			University.  This expands the disk size
+			checking to include all (?) SVR4 configurations.
+		System V Release 4 from Kimmo Suominen -- initgroups(3)
+			and setrlimit(2) are both available.
+		System V Release 4 from sob@sculley.ffg.com -- some versions
+			apparently "have EX_OK defined in other headerfiles."
+		Linux Makefile typo.
+		Linux getusershell(3) is broken in Slackware 2.0 --
+			from Andrew Pam of Xanadu Australia.
+		More Linux tweaking from John Kennedy of California State
+			University, Chico.
+		Cray changes from Eric Wassenaar:  ``On Cray, shorts,
+			ints, and longs are all 64 bits, and all structs
+			are multiples of 64 bits.  This means that the
+			sizeof operator returns only multiples of 8.
+			This requires adaptation of code that really
+			deals with 32 bit or 16 bit fields, such as IP
+			addresses or nameserver fields.''
+		DG/UX 5.4.3 from Mark T. Robinson <mtr@ornl.gov>.  To
+			get the old behaviour, use -DDGUX_5_4_2.
+		DG/UX hack: add _FORCE_MAIL_LOCAL_=yes environment
+			variable to fix bogus /bin/mail behaviour.
+		Tandem NonStop-UX from Rick McCarty <mccarty@mpd.tandem.com>.
+			This also cleans up some System V Release 4 compile
+			problems.
+		Solaris 2: sendmail.cw file should be in /etc/mail to
+			match all the other configuration files.  Fix
+			from Glenn Barry of Emory University.
+		Solaris 2.3: compile problem in conf.c.  Fix from Alain
+			Nissen of the University of Liege, Belgium.
+		Ultrix: freespace calculation was incorrect.  Fix from
+			Takashi Kizu of Osaka University.
+		SVR4: running in background gets a SIGTTOU because the
+			emulation code doesn't realize that "getpeername"
+			doesn't require reading the file.  Fix from Peter
+			Wemm of DIALix.
+		Solaris 2.3: due to an apparent bug in the socket emulation
+			library, sockets can get into a "wedged" state where
+			they just return EPROTO; closing and re-opening the
+			socket clears the problem.  Fix from Bob Manson
+			of Ohio State University.
+		Hitachi 3050R & 3050RX running HI-UX/WE2: portability
+			fixes from Akihiro Hashimoto ("Hash") of Chiba
+			University.
+		AIX changes to allow setproctitle to work from Rainer Schöpf
+			of Zentrum für Datenverarbeitung der Universität
+			Mainz.
+		AIX changes for load average from Ed Ravin of NASA/Goddard.
+		SCO Unix from Chip Rosenthal of Unicom (code was using the
+			wrong statfs call).
+		ANSI C fixes from Adam Glass (NetBSD project).
+		Stardent Titan/ANSI C fixes from Kate Hedstrom of Rutgers
+			University.
+		DG-UX fixes from Bruce Nagel of Data General.
+		IRIX64 updates from Mark Levinson of the University of
+			Rochester Medical Center.
+		Altos System V (``the first UNIX/XENIX merge the Altos
+			did for their Series 1000 & Series 2000 line;
+			their merged code was licenced back to AT&T and
+			Microsoft and became System V release 3.2'') from
+			Tim Rice <timr@crl.com>.
+		OSF/1 running on Intel Paragon from Jeff A. Earickson
+			<jeff@ssd.intel.com> of Intel Scalable Systems
+			Divison.
+		Amdahl UTS System V 2.1.5 (SVr3-based) from Janet Jackson
+			<janet@dialix.oz.au>.
+		System V Release 4 (statvfs semantic fix) from Alain
+			Durand of I.M.A.G.
+		HP-UX 10.x multiprocessor load average changes from
+			Scott Hutton and Jeff Sumler of Indiana University.
+		Cray CSOS from Scott Bolte of Cray Computer Corporation.
+		Unicos 8.0 from Douglas K. Rand of the University of North
+			Dakota, Scientific Computing Center.
+		Solaris 2.4 fixes from Sanjay Dani of Dani Communications.
+		ConvexOS 11.0 from Christophe Wolfhugel.
+		IRIX 4.0.5 from David Ashton-Reader of CADcentre.
+		ISC UNIX from J. J. Bailey.
+		HP-UX 9.xx on the 8xx series machines from Remy Giraud
+			of Meteo France.
+		HP-UX configuration from Tom Lane <tgl@sss.pgh.pa.us>.
+		IRIX 5.2 and 5.3 from Kari E. Hurtta.
+		FreeBSD 2.0 from Mike Hickey of Federal Data Corporation.
+		Sony NEWS-OS 4.2.1R and 6.0.3 from Motonori Nakamura.
+		Omron LUNA unios-b, mach from Motonori Nakamura.
+		NEC EWS-UX/V 4.2 from Motonori Nakamura.
+		NeXT 2.1 from Bryan Costales.
+		AUX patch thanks to Mike Erwin of Apple Computer.
+		HP-UX 10.0 from John Beck of Hewlett-Packard.
+		Ultrix: allow -DBROKEN_RES_SEARCH=0 if you are using a
+			non-DEC resolver.  Suggested by Allan Johannesen.
+		UnixWare 2.0 fixes from Petr Lampa of the Technical
+			University of Brno (Czech Republic).
+		KSR OS 1.2.2 support from Todd Miller of the University
+			of Colorado.
+		UX4800 support from Kazuhisa Shimizu of NEC.
+	MAKEMAP: allow -d flag to allow insertion of duplicate aliases
+		in type ``btree'' maps.  The semantics of this are undefined
+		for regular maps, but it can be useful for the user database.
+	MAKEMAP: lock database file while rebuilding to avoid sendmail
+		lookups while the rebuild is going on.  There is a race
+		condition between the open(... O_TRUNC ...) and the lock
+		on the file, but it should be quite small.
+	SMRSH: sendmail restricted shell added to the release.  This can
+		be used as an alternative to /bin/sh for the "prog" mailer,
+		giving the local administrator more control over what
+		programs can be run from sendmail.
+	MAIL.LOCAL: add this local mailer to the tape.  It is not really
+		part of the release proper, and isn't fully supported; in
+		particular, it does not run on System V based systems and
+		never will.
+	CONTRIB: a patch to rmail.c from Bill Gianopoulos of Raytheon
+		to allow rmail to compile on systems that don't have
+		function prototypes and systems that don't have snprintf.
+	CONTRIB: add the "mailprio" scripts that will help you sort mailing
+		lists by transaction delay times so that addresses that
+		respond quickly get sent first.  This is to prevent very
+		sluggish servers from delaying other peoples' mail.
+		Contributed by Tony Sanders of BSDI.
+	CONTRIB: add the "bsdi.mc" file as contributed by Tony Sanders
+		of BSDI.  This has a lot of comments to help people out.
+	CONFIG: Don't have .mc files include(../m4/cf.m4) -- instead,
+		put this on the m4 command line.  On GNU m4 (which
+		supports the __file__ primitive) you can run m4 in an
+		arbitrary directory -- use either:
+			m4 ${CFDIR}/m4/cf.m4 config.mc > config.cf
+		or
+			m4 -I${CFDIR} m4/cf.m4 config.mc > config.cf
+		On other versions of m4 that don't support __file__, you
+		can use:
+			m4 -D_CF_DIR_=${CFDIR}/ ${CFDIR}/m4/cf.m4 ...
+		(Note the trailing slash on the _CF_DIR_ definition.)
+		Old versions of m4 will default to _CF_DIR_=.. for back
+		compatibility.
+	CONFIG: fix mail from <> so it will properly convert to
+		MAILER-DAEMON on local addresses.
+	CONFIG: fix code that was supposed to catch colons in host
+		names.  Problem noted by John Gardiner Myers of CMU.
+	CONFIG: allow use of SMTP_MAILER_MAX in nullclient configuration.
+		From Paul Riddle of the University of Maryland, Baltimore
+		County.
+	CONFIG: Catch and reject "." as a host address.
+	CONFIG: Generalize domaintable to look up all domains, not
+		just unqualified ones.
+	CONFIG: Delete OLD_SENDMAIL support -- as near as I can tell, it
+		was never used and didn't work anyway.
+	CONFIG: Set flags A, w, 5, :, /, |, and @ on the "local" mailer
+		and d on all mailers in the UUCP class.
+	CONFIG: Allow "user+detail" to be aliased specially: it will first
+		look for an alias for "user+detail", then for "user+*", and
+		finally for "user".  This is intended for forwarding mail
+		for system aliases such as root and postmaster to a
+		centralized hub.
+	CONFIG: add confEIGHT_BIT_HANDLING to set option 8 (see above).
+	CONFIG: add smtp8 mailer; this has the F=8 (just-send-8) flag set.
+		The F=8 flag is also set on the "relay" mailer, since
+		this is expected to be another sendmail.
+	CONFIG: avoid qualifying all UUCP addresses sent via SMTP with
+		the name of the UUCP_RELAY -- in some cases, this is the
+		wrong value (e.g., when we have local UUCP connections),
+		and this can create unreplyable addresses.  From Chip
+		Rosenthal of Unicom.
+	CONFIG: add confRECEIVED_HEADER to change the format of the
+		Received: header inserted into all messages. Suggested by
+		Gary Mills of the University of Manitoba.
+	CONFIG: Make "notsticky" the default; use FEATURE(stickyhost)
+		to get the old behaviour.  I did this upon observing
+		that almost everyone needed this feature, and that the
+		concept I was trying to make happen didn't work with
+		some user agents anyway.  FEATURE(notsticky) still works,
+		but it is a no-op.
+	CONFIG: Add LUSER_RELAY -- the host to which unrecognized user
+		names are sent, rather than immediately diagnosing them
+		as User Unknown.
+	CONFIG: Add SMTP_MAILER_ARGS, ESMTP_MAILER_ARGS, SMTP8_MAILER_ARGS,
+		and RELAY_MAILER_ARGS to set the arguments for the
+		indicated mailers.  All default to "IPC $h".  Patch from
+		Larry Parmelee of Cornell University.
+	CONFIG: pop mailer needs F=n flag to avoid "annoying side effects
+		on the client side" and F=P to get an appropriate
+		return-path.  From Kimmo Suominen.
+	CONFIG: add FEATURE(local_procmail) to use the procmail program
+		as the local mailer.  For addresses of the form "user+detail"
+		the "detail" part is passed to procmail via the -a flag.
+		Contributed by Kimmo Suominen.
+	CONFIG: add MAILER(procmail) to add an interface to procmail for
+		use from mailertables.  This lets you execute arbitrary
+		procmail scripts.  Contributed by Kimmo Suominen.
+	CONFIG: add T= fields (MTS type) to local, smtp, and uucp mailers.
+	CONFIG: add OSTYPE(ptx2) for DYNIX/ptx 2.x from Sequent.  From
+		Paul Southworth of CICNet Systems Support.
+	CONFIG: use -a$g as default to UUCP mailers, instead of -a$f.
+		This causes the null return path to be rewritten as
+		MAILER-DAEMON; otherwise UUCP gets horribly confused.
+		From Michael Hohmuth of Technische Universitat Dresden.
+	CONFIG: Add FEATURE(bestmx_is_local) to cause any hosts that
+		list us as the best possible MX record to be treated as
+		though they were local (essentially, assume that they
+		are included in $=w).  This can cause additional DNS
+		traffic, but is easier to administer if this fits your
+		local model.  It does not work reliably if there are
+		multiple hosts that share the best MX preference.
+		Code contributed by John Oleynick of Rutgers.
+	CONFIG: Add FEATURE(smrsh) to use smrsh (the SendMail Restricted
+		SHell) instead of /bin/sh as the program used for delivery
+		to programs.  If an argument is included, it is used as
+		the path to smrsh; otherwise, /usr/local/etc/smrsh is
+		assumed.
+	CONFIG: Add LOCAL_MAILER_MAX and PROCMAILER_MAILER_MAX to limit the
+		size of messages to the local and procmail mailers
+		respectively.  Contributed by Brad Knowles of the Defense
+		Information Systems Agency.
+	CONFIG: Handle leading ``phrase:'' and trailing ``;'' as comments
+		(just like text outside of angle brackets) in order to
+		properly deal with ``group: addr1, ... addrN;'' syntax.
+	CONFIG: Require OSTYPE macro (the defaults really don't apply to
+		any real systems any more) and tweak the DOMAIN macro
+		so that it is less likely that users will accidently use
+		the Berkeley defaults.  Also, create some generic files
+		that really can be used in the real world.
+	CONFIG: Add new configuration macros to set character sets for
+		messages _arriving from_ various mailers: LOCAL_MAILER_CHARSET,
+		SMTP_MAILER_CHARSET, and UUCP_MAILER_CHARSET.
+	CONFIG: Change UUCP_MAX_SIZE to UUCP_MAILER_MAX for consistency.
+		The old name will still be accepted for a while at least.
+	CONFIG: Implement DECNET_RELAY as spec for host to which DECNET
+		mail (.DECNET pseudo-domain or node::user) will be sent.
+		As with all relays, it can be ``mailer:hostname''.  Suggested
+		by Scott Hutton.
+	CONFIG: Add MAILER(mail11) to get DECnet support.  Code contributed
+		by Barb Dijker of Labyrinth Computer Services.
+	CONFIG: change confCHECK_ALIASES to default to False -- it has poor
+		performance for large alias files, and this confused many
+		people.
+	CONFIG: Add confCF_VERSION to append local information to the
+		configuration version number displayed during SMTP startup.
+	CONFIG: fix some.newsgroup.usenet@local.host syntax (previously it
+		would only work when locally addressed.  Fix from
+		Edvard Tuinder of Cistron Internet Services.
+	CONFIG: use ${opMode} to avoid error on .REDIRECT addresses if option
+		"n" (CheckAlaises) is set when rebuilding alias database.
+		Based on code contributed by Claude Marinier.
+	CONFIG: Allow mailertable to have values of the form
+		``error:code message''.  The ``code'' is a status code
+		derived from the sysexits codes -- e.g., NOHOST or UNAVAILABLE.
+		Contributed by David James <dwj@agw.bt.co.uk>.
+	CONFIG: add MASQUERADE_DOMAIN(domain list) to extend the list of
+		sender domains that will be replaced with the masquerade name.
+		These domains will not be treated as local, but if mail passes
+		through with sender addresses in those domains they will be
+		replaced by the masquerade name.  These can also be specified
+		in a file using MASQUERADE_DOMAIN_FILE(filename).
+	CONFIG: add FEATURE(masquerade_envelope) to masquerade the envelope
+		as well as the header.  Substantial improvements to this
+		code were contributed by Per Hedeland.
+	CONFIG: add MAILER(phquery) to define a new "ph" mailer; this can be
+		accessed from a mailertable to do CCSO ph lookups.  Contributed
+		by Kimmo Suominen.
+	CONFIG: add MAILER(cyrus) to define a new Cyrus mailer; this can be
+		used to define cyrus and cyrusbb mailers (for IMAP support).
+		Contributed by John Gardiner Myers of Carnegie Mellon.
+	CONFIG: add confUUCP_MAILER to select default mailer to use for
+		UUCP addressing.  Suggested by Tom Moore of AT&T GIS.
+	NEW FILES:
+		cf/cf/cs-hpux10.mc
+		cf/cf/cs-solaris2.mc
+		cf/cf/cyrusproto.mc
+		cf/cf/generic-bsd4.4.mc
+		cf/cf/generic-hpux10.mc
+		cf/cf/generic-hpux9.mc
+		cf/cf/generic-osf1.mc
+		cf/cf/generic-solaris2.mc
+		cf/cf/generic-sunos4.1.mc
+		cf/cf/generic-ultrix4.mc
+		cf/cf/huginn.cs.mc
+		cf/domain/berkeley-only.m4
+		cf/domain/generic.m4
+		cf/feature/bestmx_is_local.m4
+		cf/feature/local_procmail.m4
+		cf/feature/masquerade_envelope.m4
+		cf/feature/smrsh.m4
+		cf/feature/stickyhost.m4
+		cf/feature/use_ct_file.m4
+		cf/m4/cfhead.m4
+		cf/mailer/cyrus.m4
+		cf/mailer/mail11.m4
+		cf/mailer/phquery.m4
+		cf/mailer/procmail.m4
+		cf/ostype/amdahl-uts.m4
+		cf/ostype/bsdi2.0.m4
+		cf/ostype/hpux10.m4
+		cf/ostype/irix5.m4
+		cf/ostype/isc4.1.m4
+		cf/ostype/ptx2.m4
+		cf/ostype/unknown.m4
+		contrib/bsdi.mc
+		contrib/mailprio
+		contrib/rmail.oldsys.patch
+		mail.local/mail.local.0
+		makemap/makemap.0
+		smrsh/README
+		smrsh/smrsh.0
+		smrsh/smrsh.8
+		smrsh/smrsh.c
+		src/Makefiles/Makefile.CSOS
+		src/Makefiles/Makefile.EWS-UX_V
+		src/Makefiles/Makefile.HP-UX.10
+		src/Makefiles/Makefile.IRIX.5.x
+		src/Makefiles/Makefile.IRIX64
+		src/Makefiles/Makefile.ISC
+		src/Makefiles/Makefile.KSR
+		src/Makefiles/Makefile.NEWS-OS.4.x
+		src/Makefiles/Makefile.NEWS-OS.6.x
+		src/Makefiles/Makefile.NEXTSTEP
+		src/Makefiles/Makefile.NonStop-UX
+		src/Makefiles/Makefile.Paragon
+		src/Makefiles/Makefile.SCO.3.2v4.2
+		src/Makefiles/Makefile.SunOS.5.3
+		src/Makefiles/Makefile.SunOS.5.4
+		src/Makefiles/Makefile.SunOS.5.5
+		src/Makefiles/Makefile.UNIX_SV.4.x.i386
+		src/Makefiles/Makefile.uts.systemV
+		src/Makefiles/Makefile.UX4800
+		src/aliases.0
+		src/mailq.0
+		src/mime.c
+		src/newaliases.0
+		src/sendmail.0
+		test/t_seteuid.c
+	RENAMED FILES:
+		cf/cf/alpha.mc =>		cf/cf/s2k-osf1.mc
+		cf/cf/chez.mc =>		cf/cf/chez.cs.mc
+		cf/cf/hpux-cs-exposed.mc =>	cf/cf/cs-hpux9.mc
+		cf/cf/osf1-cs-exposed.mc =>	cf/cf/cs-osf1.mc
+		cf/cf/s2k.mc =>			cf/cf/s2k-ultrix4.mc
+		cf/cf/sunos4.1-cs-exposed.mc =>	cf/cf/cs-sunos4.1.mc
+		cf/cf/ultrix4.1-cs-exposed.mc => cf/cf/cs-ultrix4.mc
+		cf/cf/vangogh.mc =>		cf/cf/vangogh.cs.mc
+		cf/domain/Berkeley.m4 =>	cf/domain/Berkeley.EDU.m4
+		cf/domain/cs-exposed.m4 =>	cf/domain/CS.Berkeley.EDU.m4
+		cf/domain/eecs-hidden.m4 =>	cf/domain/EECS.Berkeley.EDU.m4
+		cf/domain/s2k.m4 =>		cf/domain/S2K.Berkeley.EDU.m4
+		cf/ostype/hpux.m4 =>		cf/ostype/hpux9.m4
+		cf/ostype/irix.m4 =>		cf/ostype/irix4.m4
+		cf/ostype/ultrix4.1.m4 =>	cf/ostype/ultrix4.m4
+		src/Makefile.* =>		src/Makefiles/Makefile.*
+		src/Makefile.AUX =>		src/Makefiles/Makefile.A-UX
+		src/Makefile.BSDI =>		src/Makefiles/Makefile.BSD-OS
+		src/Makefile.DGUX =>		src/Makefiles/Makefile.dgux
+		src/Makefile.RISCos =>		src/Makefiles/Makefile.UMIPS
+		src/Makefile.SunOS.4.0.3 =>	src/Makefiles/Makefile.SunOS.4.0
+	OBSOLETED FILES:
+		cf/cf/cogsci.mc
+		cf/cf/cs-exposed.mc
+		cf/cf/cs-hidden.mc
+		cf/cf/hpux-cs-hidden.mc
+		cf/cf/knecht.mc
+		cf/cf/osf1-cs-hidden.mc
+		cf/cf/sunos3.5-cs-exposed.mc
+		cf/cf/sunos3.5-cs-hidden.mc
+		cf/cf/sunos4.1-cs-hidden.mc
+		cf/cf/ultrix4.1-cs-hidden.mc
+		cf/domain/cs-hidden.m4
+		contrib/rcpt-streaming
+		src/Makefiles/Makefile.SunOS.5.x
+
+8.6.13/8.6.12	96/01/25
+	SECURITY: In some cases it was still possible for an attacker to
+		insert newlines into a queue file, thus allowing access to
+		any user (except root).
+	CONFIG: no changes -- it is not a bug that the configuration
+		version number is unchanged.
+
+8.6.12/8.6.12	95/03/28
+	Fix to IDENT code (it was getting the size of the reply buffer
+		too small, so nothing was ever accepted).  Fix from several
+		people, including Allan Johannesen, Shane Castle of the
+		Boulder County Information Services, and Jeff Smith of
+		Warwick University (all arrived within a few hours of
+		each other!).
+	Fix a problem that could cause large jobs to run out of
+		file descriptors on systems that use vfork() rather
+		than fork().
+
+8.6.11/8.6.11	95/03/08
+	The ``possible attack'' message would be logged more often
+		than necessary if you are using Pine as a user agent.
+	The wrong host would be reported in the ``possible attack''
+		message when attempted from IDENT.
+	In some cases the syslog buffer could be overflowed when
+		reporting the ``possible attack'' message.  This can
+		cause denial of service attacks.  Truncate the message
+		to 80 characters to prevent this problem.
+	When reading the IDENT response a loop is needed around the
+		read from the network to ensure that you don't get
+		partial lines.
+	Password entries without any shell listed (that is, a null
+		shell) wouldn't match as "ok".  Problem noted by
+		Rob McMahon.
+	When running BIND 4.9.x a problem could occur because the
+		_res.options field is initialized differently than it
+		was historically -- this requires that sendmail call
+		res_init before it tweaks any bits.
+	Fix an incompatibility in openxscript() between the file open mode
+		and the stdio mode passed to fdopen.  This caused UnixWare
+		2.0 to have conniptions.  Fix from Martin Sohnius of
+		Novell Labs Europe.
+	Fix problem with static linking of local getopt routine when
+		using GNU's ld command.  Fix from John Kennedy of
+		Cal State Chico.
+	It was possible to turn off privacy flags.  Problem noted by
+		*Hobbit*.
+	Be more paranoid about writing files.  Suggestions by *Hobbit*
+		and Liudvikas Bukys.
+	MAKEMAP: fixes for 64 bit machines (DEC Alphas in particular)
+		from Spider Boardman.
+	CONFIG: No changes (version number only, to keep it in sync
+		with the binaries).
+
+8.6.10/8.6.10	95/02/10
+	SECURITY: Diagnose bogus values to some command line flags that
+		could allow trash to get into headers and qf files.
+	Validate the name of the user returned by the IDENT protocol.
+		Some systems that really dislike IDENT send intentionally
+		bogus information.  Problem pointed out by Michael Bushnell
+		of the Free Software Foundation.  Has some security
+		implications.
+	Fix a problem causing error messages about DNS problems when
+		the host name contained a percent sign to act oddly
+		because it was passed as a printf-style format string.
+		In some cases this could cause core dumps.
+	Avoid possible buffer overrun in returntosender() if error
+		message is quite ling.  From Fletcher Mattox of the
+		University of Texas.
+	Fix a problem that would silently drop "too many hops" error
+		messages if and only if you were sending to an alias.
+		From Jon Giltner of the University of Colorado and
+		Dan Harton of Oak Ridge National Laboratory.
+	Fix a bug that caused core dumps on some systems if -d11.2 was
+		set and e->e_message was null.  Fix from Bruce Nagel of
+		Data General.
+	Fix problem that can still cause df files to be left around
+		after "hop count exceeded" messages.  Fix from Andrew
+		Chang and Shau-Ping Lo of SunSoft.
+	Fix a problem that can cause buffer overflows on very long
+		user names (as might occur if you piped to a program
+		with a lot of arguments).
+	Avoid returning an error and re-queueing if the host signature
+		is null; this can occur on addresses like ``user@.''.
+		Problem noted by Wesley Craig and the University of
+		Michigan.
+	Avoid possible calls to malloc(0) if MCI caching is turned
+		off.  Bug fix from Pierre David of the Laboratoire
+		Parallelisme, Reseaux, Systemes et Modelisation (PRiSM),
+		Universite de Versailles - St Quentin, and Jacky
+		Thibault.
+	Make a local copy of the line being sent via senttolist() -- in
+		some cases, buffers could get trashed by map lookups
+		causing it to do unexpected things.  This also simplifies
+		some of the map code.
+	CONFIG: No changes (version number only, to keep it in sync
+		with the binaries).
+
+8.6.9/8.6.9	94/04/19
+	Do all mail delivery completely disconnected from any terminal.
+		This provides consistency with daemon delivery and
+		may have some security implications.
+	Make sure that malloc doesn't get called with zero size,
+		since that fails on some systems.  Reported by Ed
+		Hill of the University of Iowa.
+	Fix multi-line values for $e (SMTP greeting message).  Reported
+		by Mike O'Connor of Ford Motor Company.
+	Avoid syserr if no NIS domain name is defined, but the map it
+		is trying to open is optional.  From Win Bent of USC.
+	Changes for picky compilers from Ed Gould of Digital Equipment.
+	Hesiod support for UDB from Todd Miller of the University of
+		Colorado.  Use "hesiod" as the service name in the U
+		option.
+	Fix a problem that failed to set the "authentic" host name (that
+		is, the one derived from the socket info) if you called
+		sendmail -bs from inetd.  Based on code contributed by
+		Todd Miller (this problem was also reported by Guy Helmer
+		of Dakota State University).  This also fixes a related
+		problem reported by Liudvikas Bukys of the University of
+		Rochester.
+	Parameterize "nroff -h" in all the Makefiles so people with
+		variant versions can use them easily.  Suggested by
+		Peter Collinson of Hillside Systems.
+	SMTP "MAIL" commands with multiple ESMTP parameters required two
+		spaces between parameters instead of one.  Reported by
+		Valdis Kletnieks of Virginia Tech.
+	Reduce the number of system calls during message collection by
+		using global timeouts around the collect() loop.  This
+		code was contributed by Eric Wassenaar.
+	If the initial hostname name gathering results in a name
+		without a dot (usually caused by NIS misconfiguration)
+		and BIND is compiled in, directly access DNS to get
+		the canonical name.  This should make life easier for
+		Solaris systems.  If it still can't be resolved, and
+		if the name server is listed as "required", try again
+		in 30 seconds.  If that also fails, exit immediately to
+		avoid bogus "config error: mail loops back to myself"
+		messages.
+	Improve the "MAIL DELETED BECAUSE OF LACK OF DISK SPACE" error
+		message to explain how much space was available and
+		sound a bit less threatening.  Suggested by Stan Janet
+		of the National Institute of Standards and Technology.
+	If mail is delivered to an alias that has an owner, deliver any
+		requested return-receipt immediately, and strip the
+		Return-Receipt-To: header from the subsequent message.
+		This prevents a certain class of denial of service
+		attack, arguably gives more reasonable semantics, and
+		moves things more towards what will probably become a
+		network standard.  Suggested by Christopher Davis of
+		Kapor Enterprises.
+	Add a "noreceipts" privacy flag to turn off all return receipts
+		without recompiling.
+	Avoid printing ESMTP parameters as part of the error message
+		if there are errors during parsing.  This change is
+		purely cosmetic.
+	Avoid sending out error messages during the collect phase of
+		SMTP; there is an MVS mailer from UCLA that gets
+		confused by this.  Of course, I think it's their bug....
+	Check for the $j macro getting undefined, losing a dot, or getting
+		lost from $=w in the daemon before accepting a connection;
+		if it is, it dumps state, prints a LOG_ALERT message,
+		and drops core for debugging.  This is an attempt to
+		track down a bug that I thought was long since gone.
+		If you see this, please forward the log fragment to
+		sendmail@sendmail.ORG.
+	Change OLD_NEWDB from a #ifdef to a #if so it can be turned off
+		with -DOLD_NEWDB=0 on the command line.  From Christophe
+		Wolfhugel.
+	Instead of trying to truncate the listen queue for the server
+		SMTP port when the load average is too high, just close
+		the port completely and reopen it later as needed.
+		This ensures that the other end gets a quick "connection
+		refused" response, and that the connection can be
+		recovered later.  In particular, some socket emulations
+		seem to get confused if you tweak the listen queue
+		size around and can never start listening to connections
+		again.  The down side is that someone could start up
+		another daemon process in the interim, so you could
+		have multiple daemons all not listening to connections;
+		this could in turn cause the sendmail.pid file to be
+		incorrect.  A better approach might be to accept the
+		connection and give a 421 code, but that could break
+		other mailers in mysterious ways and have paging behaviour
+		implications.
+	Fix a glitch in TCP-level debugging that caused flag 16.101 to
+		set debugging on the wrong socket.  From Eric Wassenaar.
+	When creating a df* temporary file, be sure you truncate any
+		existing data in the file -- otherwise system crashes
+		and the like could result in extra data being sent.
+	DOC: Replace the CHANGES-R5-R8 readme file with a paper in the
+		doc directory.  This includes some additional
+		information.
+	CONFIG: change UUCP rules to never add $U! or $k! on the front
+		of recipient envelope addresses.  This should have been
+		handled by the $&h trick, but broke if people were
+		mixing domainized and UUCP addresses.  They should
+		probably have converted all the way over to uucp-uudom
+		instead of uucp-{new,old}, but the failure mode was to
+		loop the mail, which was bad news.
+	Portability fixes:
+		Newer BSDI systems (several people).
+		Older BSDI systems from Christophe Wolfhugel.
+		Intergraph CLIX, from Paul Southworth of CICNet.
+		UnixWare, from Evan Champion.
+		NetBSD from Adam Glass.
+		Solaris from Quentin Campbell of the University of
+			Newcastle upon Tyne.
+		IRIX from Dean Cookson and Bill Driscoll of Mitre
+			Corporation.
+		NCR 3000 from Kevin Darcy of Chrysler Financial Corporation.
+		SunOS (it has setsid() and setvbuf() calls) from
+			Jonathan Kamens of OpenVision Technologies.
+		HP-UX from Tor Lillqvist.
+	New Files:
+		src/Makefile.CLIX
+		src/Makefile.NCR3000
+		doc/changes/Makefile
+		doc/changes/changes.me
+		doc/changes/changes.ps
+
+8.6.8/8.6.6	94/03/21
+	SECURITY: it was possible to read any file as root using the
+		E (error message) option.  Reported by Richard Jones;
+		fixed by Michael Corrigan and Christophe Wolfhugel.
+
+8.6.7/8.6.6	94/03/14
+	SECURITY: it was possible to get root access by using weird
+		values to the -d flag.  Thanks to Alain Durand of
+		INRIA for forwarding me the notice from the bugtraq
+		list.
+
+8.6.6/8.6.6	94/03/13
+	SECURITY: the ability to give files away on System V-based
+		systems proved dangerous -- don't run as the owner
+		of a :include: file on a system that allows giveaways.
+		Unfortunately, this also applies to determining a
+		valid shell.
+	IMPORTANT: Previous versions weren't expiring old connections
+		in the connection cache for a long time under some
+		circumstances.  This could result in resource exhaustion,
+		both at your end and at the other end.  This checks the
+		connections for timeouts much more frequently.  From
+		Doug Anderson of NCSC.
+	Fix a glitch that snuck in that caused programs to be run as
+		the sender instead of the recipient if the mail was
+		from a local user to another local user.  From
+		Motonori Nakamura of Kyoto University.
+	Fix "wildcard" on /etc/shells matching -- instead of looking
+		for "*", look for "/SENDMAIL/ANY/SHELL/".  From
+		Bryan Costales of ICSI.
+	Change the method used to declare the "statfs" availability;
+		instead of HASSTATFS and/or HASUSTAT with a ton of
+		tweaking in conf.c, there is a single #define called
+		SFS_TYPE which takes on one of six values (SFS_NONE
+		for no statfs availability, SFS_USTAT for the ustat(2)
+		syscall, SFS_4ARGS for a four argument statfs(2) call,
+		and SFS_VFS, SFS_MOUNT, or SFS_STATFS for a two argument
+		statfs(2) call with the declarations in <sys/vfs.h>,
+		<sys/mount.h>, or <sys/statfs.h> respectively).
+	Fix glitch in NetInfo support that could return garbage if
+		there was no "/locations/sendmail" property.  From
+		David Meyer of the University of Virginia.
+	Change HASFLOCK from defined/not-defined to a 0/1 definition
+		to allow Linux to turn it off even though it is a
+		BSD-like system.
+	Allow setting of "ident" timeout to zero to turn off the ident
+		protocol entirely.
+	Make 7-bit stripping local to a connection (instead of to a
+		mailer); this allows you to specify that SMTP is a
+		7-bit channel, but revert to 8-bit should it advertise
+		that it supports 8BITMIME.  You still have to specify
+		mailer flag 7 to get this stripping at all.
+	Improve makesendmail script so it handles more cases automatically.
+	Tighten up restrictions on taking ownership of :include: files
+		to avoid problems on systems that allow you to give away
+		files.
+	Fix a problem that made it impossible to rebuild the alias
+		file if it was on a read-only file system.  From
+		Harry Edmon of the University of Washington.
+	Improve MX randomization function.  From John Gardiner Myers
+		of CMU.
+	Fix a minor glitch causing a bogus message to be printed (used
+		%s instead of %d in a printf string for the line number)
+		when a bad queue file was read.  From Harry Edmon.
+	Allow $s to remain NULL on locally generated mail.  I'm not
+		sure this is necessary, but a lot of people have complained
+		about it, and there is a legitimate question as to whether
+		"localhost" is legal as an 822-style domain.
+	Fix a problem with very short line lengths (mailer L= flag) in
+		headers.  This causes a leading space to be added onto
+		continuation lines (including in the body!), and also
+		tries to wrap headers containing addresses (From:, To:,
+		etc) intelligently at the shorter line lengths.  Problem
+		Reported by Lars-Johan Liman of SUNET Operations Center.
+	Log the real user name when logging syserrs, since these can have
+		security implications.  Suggested by several people.
+	Fix address logging of cached connections -- it used to always
+		log the numeric address as zero.  This is a somewhat
+		bogus implementation in that it does an extra system
+		call, but it should be an inexpensive one.  Fix from
+		Motonori Nakamura.
+	Tighten up handling of short syslog buffers even more -- there
+		were cases where the outgoing relay= name was too long
+		to share a line with delay= and mailer= logging.
+	Limit the overhead on split envelopes to one open file descriptor
+		per envelope -- previously the overhead was three
+		descriptors.  This was in response to a problem reported
+		by P{r (Pell) Emanuelsson.
+	Fixes to better handle the case of unexpected connection closes;
+		this redirects the output to the transcript so the info
+		is not lost.  From Eric Wassenaar.
+	Fix potential string overrun if you macro evaluate a string that
+		has a naked $ at the end.  Problem noted by James Matheson
+		<jmrm@eng.cam.ac.uk>.
+	Make default error number on $#error messages 553 (``Requested
+		action not taken: mailbox name not allowed'') instead of
+		501 (``Syntax error in parameters or arguments'') to
+		avoid bogus "protocol error" messages.
+	Strip off any existing trailing dot on names during $[ ... $]
+		lookup.  This prevents it from ending up with two dots
+		on the end of dot terminated names.  From Wesley Craig
+		of the University of Michigan and Bryan Costales of ICSI.
+	Clean up file class reading so that the debugging information is
+		more informative.  It hadn't been using setclass, so you
+		didn't see the class items being added.
+	Avoid core dump if you are running a version of sendmail where
+		NIS is compiled in, and you specify an NIS map, but
+		NIS is not running.  Fix from John Oleynick of
+		Rutgers.
+	Diagnose bizarre case where res_search returns a failure value,
+		but sets h_errno to a success value.
+	Make sure that "too many hops" messages are considered important
+		enough to send an error to the Postmaster (that is, the
+		address specified in the P option).  This fix should
+		help problems that cause the df file to be left around
+		sometimes -- unfortunately, I can't seem to reproduce
+		the problem myself.
+	Avoid core dump (null pointer reference) on EXPN command; this
+		only occurred if your log level was set to 10 or higher
+		and the target account was an alias or had a .forward file.
+		Problem noted by Janne Himanka.
+	Avoid "denial of service" attacks by someone who is flooding your
+		SMTP port with bad commands by shutting the connection
+		after 25 bad commands are issued.  From Kyle Jones of
+		UUNET.
+	Fix core dump on error messages with very long "to" buffers;
+		fmtmsg overflows the message buffer.  Fixed by trimming
+		the to address to 203 characters.  Problem reported by
+		John Oleynick.
+	Fix configuration for HASFLOCK -- there were some spots where
+		a #ifndef was incorrectly #ifdef.  Pointed out by
+		George Baltz of the University of Maryland.
+	Fix a typo in savemail() that could cause the error message To:
+		lists to be incorrect in some places.  From Motonori
+		Nakamura.
+	Fix a glitch that can cause duplicate error messages on split
+		envelopes where an address on one of the lists has a
+		name server failure.  Fix from Voradesh Yenbut of the
+		University of Washington.
+	Fix possible bogus pointer reference on ESMTP parameters that
+		don't have an ``=value'' part.
+	CNAME loops caused an error message to be generated, but also
+		re-queued the message.  Changed to just re-queue the
+		message (it's really hard to just bounce it because
+		of the weird way the name server works in the presence
+		of CNAME loops).  Problem noted by James M.R.Matheson
+		of Cambridge University.
+	Avoid giving ``warning: foo owned process doing -bs'' messages
+		if they use ``MAIL FROM:<foo>'' where foo is their true
+		user name.  Suggested by Andreas Stolcke of ICSI.
+	Change the NAMED_BIND compile flag to be a 0/1 flag so you can
+		override it easily in the Makefile -- that is, you can
+		turn it off using -DNAMED_BIND=0.
+	If a gethostbyname(...) of an address with a trailing dot fails,
+		try it without the trailing dot.  This is because if
+		you have a version of gethostbyname() that falls back
+		to NIS or the /etc/hosts file it will fail to find
+		perfectly reasonable names that just don't happen to
+		be dot terminated in the hosts file.  You don't want to
+		strip the dot first though because we're trying to ensure
+		that country names that match one of your subdomains get
+		a chance.
+	PRALIASES: fix bogus output on non-null-terminated strings.
+		From Bill Gianopoulos of Raytheon.
+	CONFIG: Avoid rewriting anything that matches $w to be $j.
+		This was in code intended to only catch the self-literal
+		address (that is, [1.2.3.4], where 1.2.3.4 is your
+		IP address), but the code was broken.  However, it will
+		still do this if $M is defined; this is necessary to
+		get client configurations to work (sigh).  Note that this
+		means that $M overrides :mailname entries in the user
+		database!  Problem noted by Paul Southworth.
+	CONFIG: Fix definition of Solaris help file location.  From
+		Steve Cliffe <steve@gorgon.cs.uow.edu.au>.
+	CONFIG: Fix bug that broke news.group.USENET mappings.
+	CONFIG: Allow declaration of SMTP_MAILER_MAX, FAX_MAILER_MAX,
+		and USENET_MAILER_MAX to tweak the maximum message
+		size for various mailers.
+	CONFIG: Change definition of USENET_MAILER_ARGS to include argv[0]
+		instead of assuming that it is "inews" for consistency
+		with other mailers.  From Michael Corrigan of UC San Diego.
+	CONFIG: When mail is forwarded to a LOCAL_RELAY or a MAIL_HUB,
+		qualify the address in the SMTP envelope as user@{relay|hub}
+		instead of user@$j.  From Bill Wisner of The Well.
+	CONFIG: Fix route-addr syntax in nullrelay configuration set.
+	CONFIG: Don't turn off case mapping of user names in the local
+		mailer for IRIX.  This was different than most every other
+		system.
+	CONFIG: Avoid infinite loops on certainly list:; syntaxes in
+		envelope.  Noted by Thierry Besancon
+		<besancon@excalibur.ens.fr>.
+	CONFIG: Don't include -z by default on uux line -- most systems
+		don't want it set by default.  Pointed out by Philippe
+		Michel of Thomson CSF.
+	CONFIG: Fix some bugs with mailertables -- for example, if your
+		host name was foo.bar.ray.com and you matched against
+		".ray.com", the old implementation bound %1 to "bar"
+		instead of "foo.bar".  Also, allow "." in the mailertable
+		to match anything -- essentially, take over SMART_HOST.
+		This also moves matching of explicit local host names
+		before the mailertable so they don't have to be special
+		cased in the mailertable data.  Reported by Bill
+		Gianopoulos of Raytheon; the fix for the %1 binding
+		problem was contributed by Nicholas Comanos of the
+		University of Sydney.
+	CONFIG: Don't include "root" in class $=L (users to deliver
+		locally, even if a hub or relay exists) by default.
+		This is because of the known bug where definition of
+		both a LOCAL_RELAY and a MAIL_HUB causes $=L to ignore
+		both and deliver into the local mailbox.
+	CONFIG: Move up bitdomain and uudomain handling so that they
+		are done before .UUCP class matching; uudomain was
+		reported as ineffective before.  This also frees up
+		diversion 8 for future use.  Problem reported by Kimmo
+		Suominen.
+	CONFIG: Don't try to convert dotted IP address (e.g., [1.2.3.4])
+		into host names.  As pointed out by Jonathan Kamens,
+		these are often used because either the forward or reverse
+		mapping is broken; this translation makes it broken again.
+	DOC: Clarify $@ and $: in the Install & Op Guide.  From Kimmo
+		Suominen.
+	Portability fixes:
+		Unicos from David L. Kensiski of Sterling Sofware.
+		DomainOS from Don Lewis of Silicon Systems.
+		GNU m4 1.0.3 from Karst Koymans of Utrecht University.
+		Convex from Kimmo Suominen <kim@tac.nyc.ny.us>.
+		NetBSD from Adam Glass <glass@sun-lamp.cs.berkeley.edu>.
+		BSD/386 from Tony Sanders of BSDI.
+		Apollo from Eric Wassenaar.
+		DGUX from Doug Anderson.
+		Sequent DYNIX/ptx 2.0 from Tim Wright of Sequent.
+	NEW FILES:
+		src/Makefile.DomainOS
+		src/Makefile.PTX
+		src/Makefile.SunOS.5.1
+		src/Makefile.SunOS.5.2
+		src/Makefile.SunOS.5.x
+		src/mailq.1
+		cf/ostype/domainos.m4
+		doc/op/Makefile
+		doc/intro/Makefile
+		doc/usenix/Makefile
+
+8.6.5/8.6.5	94/01/13
+	Security fix:  /.forward could be owned by anyone (the test
+		to allow root to own any file was backwards).  From
+		Bob Campbell at U.C. Berkeley.
+	Security fix: group ids were not completely set when programs
+		were invoked.  This caused programs to have group
+		permissions they should not have had (usually group
+		daemon instead of their own group).  In particular,
+		Perl scripts would refuse to run.
+	Security: check to make sure files that are written are not
+		symbolic links (at least under some circumstances).
+		Although this does not respond to a specific known
+		attack, it's just a good idea.  Suggested by
+		Christian Wettergren.
+	Security fix: if a user had an NFS mounted home directory on
+		a system with a restricted shell listed in their
+		/etc/passwd entry, they could still execute any
+		program by putting that in their .forward file.
+		This fix prevents that by insisting that their shell
+		appear in /etc/shells before allowing a .forward to
+		execute a program or write a file.  You can disable
+		this by putting "*" in /etc/shells.  It also won't
+		permit world-writable :include: files to reference
+		programs or files (there's no way to disable this).
+		These behaviours are only one level deep -- for
+		example, it is legal for a world-writable :include:
+		file to reference an alias that writes a file, on
+		the assumption that the alias file is well controlled.
+	Security fix: root was not treated suspiciously enough when
+		looking into subdirectories.  This would potentially
+		allow a cracker to examine files that were publically
+		readable but in a non-publically searchable directory.
+	Fix a problem that causes an error on QUIT on a cached
+		connection to create problems on the current job.
+		These are typically unrelated, so errors occur in
+		the wrong place.
+	Reset CurrentLA in sendall() -- this makes sendmail queue
+		runs more responsive to load average, and fixes a
+		problem that ignored the load average in locally
+		generated mail.  From Eric Wassenaar.
+	Fix possible core dump on aliases with null LHS.  From
+		John Orthoefer of BB&N.
+	Revert to using flock() whenever possible -- there are just
+		too many bugs in fcntl() locking, particularly over
+		NFS, that cause sendmail to fail in perverse ways.
+	Fix a bug that causes the connection cache to get confused
+		when sending error messages.  This resulted in
+		"unexpected close" messages.  It should fix itself
+		on the following queue run.  Problem noted by
+		Liudvikas Bukys of the University of Rochester.
+	Include $k in $=k as documented in the Install & Op Guide.
+		This seems odd, but it was documented....  From
+		Michael Corrigan of UCSD.
+	Fix problem that caused :include:s from alias files to be
+		forced to be owned by root instead of daemon
+		(actually DefUid).  From Tim Irvin.
+	Diagnose unrecognized I option values -- from Mortin Forssen
+		of the Chalmers University of Technology.
+	Make "error" mailer work consistently when there is no error
+		code associated with it -- previously it returned OK
+		even though there was a real problem.  Now it assumes
+		EX_UNAVAILABLE.
+	Fix bug that caused the last header line of messages that had
+		no body and which were terminated with EOF instead of
+		"." to be discarded.  Problem noted by Liudvikas Bukys.
+	Fix core dump on SMTP mail to programs that failed -- it tried
+		to go to a "next MX host" when none existed, causing
+		a core dump.  From der Mouse at McGill University.
+	Change IDENTPROTO from a defined/not defined to a 0/1 switch;
+		this makes it easier to turn it off (using
+		-DIDENTPROTO=0 in the Makefile).  From der Mouse.
+	Fix YP_MASTER_NAME store to use the unupdated result of
+		gethostname() (instead of myhostname(), which tries
+		to fully qualify the name) to be consistent with
+		SunOS.  If your hostname is unqualified, this fixes
+		transfers to slave servers.  Bug noted by Keith
+		McMillan of Ameritech Services, Inc.
+	Fix Ultrix problem: gethostbyname() can return a very large
+		(> 500) h_length field, which causes the sockaddr
+		to be trashed.  Use the size of the sockaddr instead.
+		Fix from Bob Manson of Ohio State.
+	Don't assume "-a." on host lookups if NAMED_BIND is not
+		defined -- this confuses gethostbyname on hosts
+		file lookups, which doesn't understand the trailing
+		dot convention.
+	Log SMTP server subprocesses that die with a signal instead
+		of from a clean exit.
+	If you don't have option "I" set, don't assume that a DNS
+		"host unknown" message is authoritative -- it
+		might still be found in /etc/hosts.
+	Fix a problem that would cause Deferred: messages to be sent
+		as the subject of an error message, even though the
+		actual cause of a message was more severe than that.
+		Problem noted by Chris Seabrook of OSSI.
+	Fix race condition in DBM alias file locking.  From Kyle
+		Jones of UUNET.
+	Limit delivery syslog line length to avoid bugs in some
+		versions of syslog(3).  This adds a new compile time
+		variable SYSLOG_BUFSIZE.  From Jay Plett of Princeton
+		University, which is in turn derived from IDA.
+	Fix quotes inside of comments in addresses -- previously
+		it insisted that they be balanced, but the 822 spec
+		says that they should be ignored.
+	Dump open file state to syslog upon receiving SIGUSR1 (for
+		debugging).  This also evaluates ruleset 89, if set
+		(with the null input), and logs the result.  This
+		should be used sparingly, since the rewrite process
+		is not reentrant.
+	Change -qI, -qR, and -qS flags to be case-insensitive as
+		documented in the Bat Book.
+	If the mailer returned EX_IOERR or EX_OSERR, sendmail did not
+		return an error message and did not requeue the message.
+		Fix based on code from Roland Dirlewanger of
+		Reseau Regional Aquarel, Bordeaux, France.
+	Fix a problem that caused a seg fault if you got a 421 error
+		code during some parts of connection initialization.
+		I've only seen this when talking to buggy mailers on
+		the other end, but it shouldn't give a seg fault in
+		any case.  From Amir Plivatsky.
+	Fix core dump caused by a ruleset call that returns null.
+		Fix from Bryan Costales of ICSI.
+	Full-Name: field was being ignored.  Fix from Motonori Nakamura
+		of Kyoto University.
+	Fix a possible problem with very long input lines in setproctitle.
+		From P{r Emanuelsson.
+	Avoid putting "This is a warning message" out on return receipts.
+		Suggested by Douglas Anderson.
+	Detect loops caused by recursive ruleset calls.  Suggested by
+		Bryan Costales.
+	Initialize non-alias maps during alias rebuilds -- they may be
+		needed for parsing.  Problem noted by Douglas Anderson.
+	Log sender address even if no message was collected in SMTP
+		(e.g., if all RCPTs failed).  Suggested by Motonori
+		Nakamura.
+	Don't reflect the owner-list contents into the envelope sender
+		address if the value contains ", :, /, or | (to avoid
+		illegal addresses appearing there).
+	Efficiency hack for toktype macro -- from Craig Partridge of
+		BB&N.
+	Clean up DNS error printing so that a host name is always
+		included.
+	Remember to set $i during queue runs.  Reported by Stephen
+		Campbell of Dartmouth University.
+	If the environment variable HOSTALIASES is set, use it during
+		canonification as the name of a file with per-user host
+		translations so that headers are properly mapped.  Reported
+		by Anne Bennett of Concordia University.
+	Avoid printing misleading error message if SMTP mailer (not
+		using [IPC]) should die on a core dump.
+	Avoid incorrect diagnosis of "file 1 closed" when it is caused
+		by the other end closing the connection.  From
+		Dave Morrison of Oracle.
+	Improve several of the error messages printed by "mailq"
+		to include a host name or other useful information.
+	Add NetInfo preliminary support for NeXT systems.  From Vince
+		DeMarco.
+	Fix a glitch that sometimes caused :include:s that pointed to
+		NFS filesystems that were down to give an "aliasing/
+		forwarding loop broken" message instead of queueing
+		the message for retry.  Noted by William C Fenner of
+		the NRL Connection Machine Facility.
+	Fix a problem that could cause a core dump if the input sequence
+		had (or somehow acquired) a \231 character.
+	Make sure that route-addrs always have <angle brackets> around
+		them in non-SMTP envelopes (SMTP envelopes already do
+		this properly).
+	Avoid weird headers on unbalanced punctuation of the form:
+		``Joe User <user)'' -- this caused reference to the
+		null macro.  Fix from Rick McCarty of IO.COM.
+	Fix a problem that caused an alias "user: user@local.host" to
+		not have the QNOTREMOTE bit set; this caused configs
+		to act as if FEATURE(notsticky) was defined even when
+		it was not.  The effect of the problem was to make it
+		very hard to to set up satellite sites that had a few
+		local accounts, with everything else forwarded to a
+		corporate hub.  Reported by Detlef Drewanz of the
+		University of Rostock and Mark Frost of NCD.
+	Change queuing to not call rulesets 3, {1 or 2}, 4 on header
+		addresses.  This is more efficient (fewer name server
+		calls) and fixes certain unusual configurations, such
+		as those that have ruleset 4 do something that is
+		non-idempotent unless a mailer-specific ruleset did
+		something else.  Problem reported by Brian J. Coan
+		of the Institute for Global Communications.
+	Fix the "obsolete argument" routine in main to better understand
+		new arguments.  For example, if you used ``sendmail
+		-C config -v -q'' it would choke on the -q because
+		the -C would stop looking for old-format arguments.
+	Fix the code that was intended to allow two users to forward their
+		mail to the same program and have them appear unique.
+	Portability fixes for:
+		SCO UNIX from Murray Kucherawy.
+		SCO Open Server 3.2v4 from Philippe Brand.
+		System V Release 4 from Rick Ellis and others.
+		OSF/1 from Steve Campbell.
+		DG/UX from Ben Mesander of the USGS and Bryan Curnutt
+			of Stoner Associates.
+		Motorola SysV88 from Kevin Johnson of Motorola.
+		Solaris 2.3 from Casper H.S. Dik of the University
+			of Amsterdam and John Caruso of University
+			of Maryland.
+		FreeBSD from Ollivier Robert.
+		NetBSD from Adam Glass.
+		TitanOS from Kate Hedstrom of Rutgers University.
+		Irix from Bryan Curnutt.
+		Dynix from Jim Davis of the University of Arizona.
+		RISC/os.
+		Linux from John Kennedy of California State University
+			at Chico.
+		Solaris 2.x from Tony Boner of the U.S. Air Force.
+		NEXTSTEP 3.x from Vince DeMarco.
+		HP-UX from various people.  NOTA BENE:  the location
+			of the config file has moved to /usr/lib
+			to match the HP-UX version of sendmail.
+	CONFIG: Don't do any recipient rewriting on relay mailer;
+		since this is intended only for internal use, the
+		usual RFC 821/822/1123 rules can be relaxed.  The
+		main point of this is to avoid munging (ugh) UUCP
+		addresses when relaying internally.
+	CONFIG: fix typo in mailer/uucp.m4 that mutilates list:;
+		syntax addresses delivered via UUCP.  Solution
+		provided by Peter Wemm.
+	CONFIG: fix thumb-fumble in default UUCP relaying in ruleset
+		zero; it caused double @ signs in addresses.  From
+		Irving Reid of the University of Toronto.
+	CONFIG: Portability fixes for SCO Unix 3.2 with TCP/IP 1.2.1
+		from Markku Toijala of ICL Personal Systems Oy.
+	CONFIG: Add trailing "." on pseudo-domains for consistency;
+		this fixes a problem (noted by Al Whaley of Sunnyside)
+		that made it hard to recognize your own pseudodomain
+		names.
+	CONFIG: catch "@host" syntax errors (i.e., null local-parts)
+		rather than letting them get "local configuration
+		error"s.  Problem noted by John Gardiner Myers.
+	CONFIG: add uucp-uudom mailer variant, based on code posted
+		by Spider Boardman <spider@Orb.Nashua.NH.US>; this
+		has uucp-dom semantics but old UUCP syntax.  This
+		also permits "uucp-old" as an alias for "uucp" and
+		"uucp-new" as a synonym for "suucp" for consistency.
+	CONFIG: add POP mailer support (from Kimmo Suominen
+		<kim@grendel.lut.fi>).
+	CONFIG: drop CSNET_RELAY support -- CSNET is long gone.
+	CONFIG: fix bug caused with domain literal addresses (e.g.,
+		``[128.32.131.12]'') when FEATURE(allmasquerade)
+		was set; it would get an additional @masquerade.host
+		added to the address.  Problem noted by Peter Wan
+		of Georgia Tech.
+	CONFIG: make sure that the local UUCP name is in $=w.  From
+		Jim Murray of Stratus.
+	CONFIG: changes to UUCP rewriting to simulate IDA-style "V"
+		mailer flag.  Briefly, if you are sending to host
+		"foo", then it rewrites "foo!...!baz" to "...!baz",
+		"foo!baz" remains "foo!baz", and anything else has
+		the local name prepended.
+	CONFIG: portability fixes for HP-UX.
+	DOC: several minor problems fixed in the Install & Op Guide.
+	MAKEMAP: fix core dump problem on lines that are too long or
+		which lack newline.  From Mark Delany.
+	MAILSTATS: print sums of columns (total messages & kbytes
+		in and out of the system).  From Tom Ferrin of UC
+		San Francisco Computer Graphics Lab.
+	SIGNIFICANT USER- OR SYSAD-VISIBLE CHANGES:
+		On HP-UX, /etc/sendmail.cf has been moved to
+			/usr/lib/sendmail.cf to match HP sendmail.
+		Permissions have been tightened up on world-writable
+			:include: files and accounts that have shells
+			that are not listed in /etc/shells.  This may
+			cause some .forward files that have worked
+			before to start failing.
+		SIGUSR1 dumps some state to the log.
+	NEW FILES:
+		src/Makefile.DGUX
+		src/Makefile.Dynix
+		src/Makefile.FreeBSD
+		src/Makefile.Mach386
+		src/Makefile.NetBSD
+		src/Makefile.RISCos
+		src/Makefile.SCO
+		src/Makefile.SVR4
+		src/Makefile.Titan
+		cf/mailer/pop.m4
+		cf/ostype/bsdi1.0.m4
+		cf/ostype/dgux.m4
+		cf/ostype/dynix3.2.m4
+		cf/ostype/sco3.2.m4
+		makemap/Makefile.dist
+		praliases/Makefile.dist
+
+8.6.4/8.6.4	93/10/31
+	Repair core-dump problem (write to read-only memory segment)
+		if you fall back to the return-to-Postmaster case in
+		savemail.  Problem reported by Richard Liu.
+	Immediately diagnose bogus sender addresses in SMTP.  This
+		makes quite certain that crackers can't use this
+		class of attack.
+	Reliability Fix:  check return value from fclose() and fsync()
+		in a few critical places.
+	Minor problem in initsys() that reversed a condition for
+		redirecting the output channel on queue runs.  It's
+		not clear this code even does anything.  From Eric
+		Wassenaar of the Dutch National Institute for Nuclear
+		and High-Energy Physics.
+	Fix some problems that caused queue runs to do "too much work",
+		such as double-reading the Errors-To: header.  From
+		Eric Wassenaar.
+	Error messages on writing the temporary file (including the
+		data file) were getting suppressed in SMTP -- this
+		fix causes them to be properly reported.  From Eric
+		Wassenaar.
+	Some changes to support AF_UNIX sockets -- this will only
+		really become relevant in the next release, but some
+		people need it for local patches.  From Michael
+		Corrigan of UC San Diego.
+	Use dynamically allocated memory (instead of static buffers)
+		for macros defined in initsys() and settime(); since
+		these can have different values depending on which
+		envelope they are in.  From Eric Wassenaar.
+	Improve logging to show ctladdr on to= logging; this tells you
+		what uid/gid processes ran as.
+	Fix a problem that caused error messages to be discarded if
+		the sender address was unparseable for some reason;
+		this was supposed to fall back to the "return to
+		postmaster" case.
+	Improve aliaswait backoff algorithm.
+	Portability patches for Linux (8.6.3 required another header
+		file) (from Karl London) and SCO UNIX.
+	CONFIG: patch prog mailer to not strip host name off of envelope
+		addresses (so that it matches local again).  From
+		Christopher Davis.
+	CONFIG: change uucp-dom mailer so that "<>" translates to $n;
+		this prevents uux from seeing lines with null names like
+		``From   Sat Oct 30 14:55:31 1993''.  From Motonori
+		Nakamura of Kyoto University.
+	CONFIG: handle <list:;> syntax correctly.  This isn't legal, but
+		it shouldn't fail miserably.  From Motonori Nakamura.
+
+8.6.2/8.6.2	93/10/15
+	Put a "successful delivery" message in the transcript for
+		addresses that get return-receipts.
+	Put a prominent "this is only a warning" message in warning
+		messages -- some people don't read carefully enough
+		and end up sending the message several times.
+	Include reason for temporary failure in the "warning" return
+		message.  Currently, it just says "cannot send for
+		four hours".
+	Fix the "Original message received" time generated for
+		returntosender messages.  It was previously listed as
+		the current time.  Bug reported by Eric Hagberg of
+		Cornell University Medical College.
+	If there is an error when writing the body of a message,
+		don't send the trailing dot and wait for a response
+		in sender SMTP, as this could cause the connection to
+		hang up under some bizarre circumstances.  From Eric
+		Wassenaar.
+	Fix some server SMTP synchronization problems caused when
+		connections fail during message collection.  From
+		Eric Wassenaar.
+	Fix a problem that can cause srvrsmtp to reject mail if the
+		name server is down -- it accepts the RCPT but rejects
+		the DATA command.  Problem reported by Jim Murray of
+		Stratus.
+	Fix a problem that can cause core dumps if the config file
+		incorrectly resolves to a null hostname.  Reported by
+		Allan Johannesen of WPI.
+	Non-root use of -C flag, dangerous -f flags, and use of -oQ
+		by non-root users were not put into
+		X-Authentication-Warning:s as intended because the
+		config file hadn't set the PrivacyFlags yet.  Fix
+		from Sven-Ove Westberg of the University of Lulea.
+	Under very odd circumstances, the alias file rebuild code
+		could get confused as to whether a database was
+		open or not.
+	Check "vendor code" on the end of V lines -- this is
+		intended to provide a hook for vendor-specific
+		configuration syntax.  (This is a "new feature",
+		but I've made an exception to my rule in a belief
+		that this is a highly exceptional case.)
+	Portability fixes for DG/UX (from Douglas Anderson of NCSC),
+		SCO Unix (from Murray Kucherawy), A/UX, and OSF/1
+		(from Jon Forrest of UC Berkeley)
+	CONFIG: fix ``mailer:host'' form of UUCP relay naming.
+
+8.6.1/8.6	93/10/08
+	Portability fixes for A/UX and Encore UMAX V.
+	Fix error message handling -- if you had a name server down
+		causing an error during parsing, that message was never
+		propogated to the queue file.
+
+8.6/8.6		93/10/05
+	Configuration cleanup: make it easier to undo IDENTPROTO in
+		conf.h (other systems have the same bug).
+	If HASGETDTABLESIZE and _SC_OPEN_MAX are both defined, assume
+		getdtablesize() instead of sysconf(); a disturbingly
+		large number of systems defined _SC_OPEN_MAX in the
+		header files but don't have the syscall.
+	Another patch to really truly ignore MX records in getcanonname
+		if trymx == FALSE.
+	Fix problem that caused the "250 IAA25499 Message accepted for
+		delivery" message to be omitted if there was an error
+		in the header of the message (e.g., a bad Errors-To:
+		line).  Pointed out by Michael Corrigan of UCSD.
+	Announce name of host we are chatting when we get errors; this
+		is an IDA-ism suggested by Christophe Wolfhugel.
+	Portability fixes for Alpha OSF/1 (from Anthony Baxter of the
+		Australian Artificial Intelligence Institute), SCO Unix
+		(from Murray Kucherawy of Hookup Communication Corp.),
+		NeXT (from Vince DeMarco and myself), Linux (from
+		Karl London <karl@borg.demon.co.uk>), BSDI (from
+		Christophe Wolfhugel, and SVR4 on Dell (from Kimmo
+		Suominen), AUX 3.0 on Macintosh, and ANSI C compilers.
+	Some changes to get around gcc optimizer bugs.  From Takahiro
+		Kanbe.
+	Fix error recovery in queueup if another tf file of the same
+		name already exists.  Problem stumbled over by Bill
+		Wisner of The Well.
+	Output YP_MASTER_NAME and YP_LAST_MODIFIED without null bytes.
+		Problem noted by Keith McMillan of Ameritech Services.
+	Deal with group permissions properly when opening .forward and
+		:include: files.  This relaxes the 8.1C restrictions
+		slightly more.  This includes proper setting of groups
+		when reading :include: files, allowing you to read some
+		files that you should be able to read but have previously
+		been denied unless you owned them or they had "other"
+		read permission.
+	Make certain that $j is in $=w (after the .cf is read) so that
+		if the user is forced to override some silly system,
+		MX suppression will still work.
+	Fix a couple of efficiency problems where newstr was double-
+		calling expensive routines.  In at least one case, it
+		wasn't guaranteed that they would always return the
+		same result.  Problem noted by Christophe Wolfhugel.
+	Fix null pointer dereference in putoutmsg -- only on an error
+		condition from a non-SMTP mailer.  From Motonori
+		Nakamura.
+	Macro expand "C" line class definitions before scanning so that
+		"CX $Z" works.
+	Fix problem that caused error message to be sent while still
+		trying to send the original message if the connection
+		is closed during a DATA command after getting an error
+		on an RCPT command (pretty obscure).  Problem reported
+		by John Myers of CMU.
+	Fix reply to NOOP to be 250 instead of 200 -- this is a long
+		term bug.
+	Fix a nasty bug causing core dumps when returning the "warning:
+		cannot deliver for N hours -- will keep trying" message;
+		it only occurred if you had PostMasterCopy set and
+		only on some architectures.  Although sendmail would
+		keep trying, it would send error messages on each
+		queue interval.  This is an important fix.
+	Allow u and g options to take user and group names respectively.
+	Don't do a chdir into the queue directory in -bt mode to make
+		ruleset testing a bit easier.
+	Don't allow users to turn off logging (using -oL) on the command
+		line -- command line can only raise, not lower, logging
+		level.
+	Set $u to the original recipient on the SMTP transaction or on
+		the command line.  This is only done if there is exactly
+		one recipient.  Technically, this does not meet the
+		specs, because it does not guarantee a domain on the
+		address.
+	Fix a problem that dumped error messages on bad addresses if
+		you used the -t flag.  Problem noted by Josh Smith of
+		Harvey Mudd College.
+	Given an address such as ``<foo> <bar>'', auto-quote the first
+		``<foo>'' part, giving ``"<foo>" <bar>''.  This is to
+		avoid the problem of people who use angle brackets in
+		their full name information.
+	Fix a null pointer dereference if you set option "l", have
+		an Errors-To: header in the message, and have Errors-To:
+		defined in the config file H lines.  From J.R. Oldroyd.
+	Put YPCOMPAT on #ifdef NIS instead -- it's one less thing to get
+		wrong when compiling.  Suggested by Rick McCarty of TI.
+	Fix a problem that could pass negative SIZE parameter if the
+		df file got lost; this would cause servers to always
+		give a temporary failure, making the problem even worse.
+		Problem noted by Allan Johannesen of WPI.
+	Add "ident" timeout (one of the "r" option selectors) for IDENT
+		protocol timeouts (30s default).  Requested by Murray
+		Kucherawy of HookUp Communication Corp. to handle bogus
+		PC TCP/IP implementations.
+	Change $w default definition to be just the first component of
+		the domain name on config level 5.  The $j macro defaults
+		to the FQDN; $m remains as before.  This lets well-behaved
+		config files use any of the short, long, or subdomain
+		names.
+	Add makesendmail script in src to try to automate multi-architecture
+		builds.  I know, this is sub-optimal, but it is still
+		helpful.
+	Fix very obscure race condition that can cause a queue run to
+		get a queue file for an already completed job.  This
+		problem has existed for years.  Problem noted by the
+		long suffering Allan Johannesen of WPI.
+	Fix a problem that caused the raw sender name to be passed to
+		udbsender instead of the canonified name -- this caused
+		it to sometimes miss records that it should have found.
+	Relax check of name on HELO packet so that a program using -bs
+		that claims to be itself works properly.
+	Restore rewriting of $: part of address through 2, R, 4 in
+		buildaddr -- this requires passing a lot of flags to get
+		it right.  Unlike old versions, this ONLY rewrites
+		recipient addresses, not sender addresses.
+	Fix a bug that caused core dumps in config files that cannot
+		resolve /file/name style addresses.  Fix from Jonathan
+		Kamens of OpenVision Technologies.
+	Fix problem with fcntl locking that can cause error returns to
+		be lost if the lock is lost; this required fully
+		queueing everything, dropping the envelope (so errors
+		would get returned), and then re-reading the queue from
+		scratch.
+	Fix a problem that caused aliases that redefine an otherwise
+		true address to still send to the original address
+		if and only if the alias failed in certain bizarre
+		ways (e.g, if they pointed at a list:; syntax address).
+		Problem pointed out by Jonathan Kamens.
+	Remove support for frozen configuration files.  They caused
+		more trouble than it was worth.
+	Fix problem that can cause error messages to get ignored when
+		using both -odb and -t flags.  Problem noted by Rob
+		McNicholas at U.C. Berkeley.
+	Include all "normal" variations on hostname in $=w.  For example,
+		if the host name is vangogh.cs.berkeley.edu, $=w will
+		contain vangogh, vangogh.cs, and vangogh.cs.berkeley.edu.
+	Add "restrictqrun" privacy flag -- without this, anyone can run
+		the queue.
+	Reset SmtpPhase global on initial connection creation so that
+		messages don't come out with stale information.
+	Pass an "ext" argument to lockfile so that error/log messages
+		will properly reflect the true filename being locked.
+	Put all [...] address forms into $=w -- this eliminates the need
+		for MAXIPADDR in conf.h.  Suggested by John Gardiner
+		Myers of CMU.
+	Fix a bug that can cause qf files to be left around even after
+		an SMTP RSET command.  Problem and fix from Michael
+		Corrigan.
+	Don't send a PostMasterCopy to errors when the Precedence: is
+		negative.  Error reports still go to the envelope
+		sender address.
+	Add LA_SHORT for load averages.
+	Lock sendmail.st file when posting statistics.
+	Add "SendBufSize" and "RcvBufSize" suboptions to "O" option to
+		set the size of the TCP send and receive buffers; if you
+		run over a slow slip line you may need to set these down
+		(although it would be better to fix the SLIP implementation
+		so that it's not necessary to recompile every program
+		that does bulk data transfer).
+	Allow null defaults on $( ... $) lookups.  Problem reported by
+		Amir Plivatsky.
+	Diagnose crufty S and V config lines.  This resulted from an
+		observation that some people were using the SITE macro
+		without the SITECONFIG macro first, which was causing
+		bogus config files that were not caught.
+	Fix makemap -f flag to turn off case folding (it was turning it
+		on instead).  THIS IS A USER VISIBLE CHANGE!!!
+	Fix a problem that caused multiple error messages to be sent if
+		you used "sendmail -t -oem -odb", your system uses fcntl
+		locking, and one of the recipient addresses is unknown.
+	Reset uid earlier in include() so that recursive .forwards or
+		:include:s don't use the wrong uid.
+	If file descriptor 0, 1, or 2 was closed when sendmail was
+		called, the code to recover the descriptor was broken.
+		This sometimes (only sometimes) caused problems with the
+		alias file.  Fix from Motonori Nakamura.
+	Fix a problem that caused aliaswait to go into infinite recursion
+		if the @:@ metasymbol wasn't found in the alias file.
+	Improve error message on newaliases if database files cannot be
+		opened or if running with no database format defined.
+	Do a better estimation of the size of error messages when NoReturn
+		is set.  Problem noted by P{r (Pell) Emanuelsson.
+	Fix a problem causing the "c" option (don't connect to expensive
+		mailers) to be ignored in SMTP.  Problem noted and the
+		solution suggested by Robert Elz of The University of
+		Melbourne.
+	Improve connection caching algorithm by passing "[host]" to
+		hostsignature, which strips the square brackets and
+		returns the real name.  This allows mailertable entries
+		to match regular entries.
+	Re-enable Return-Receipt-To: -- people seem to want this stupid
+		feature, even if it doesn't work right.
+	Catch and log attempts to try the "wiz" command in server SMTP.
+		This also ups the log level from LOG_NOTICE to LOG_CRIT.
+	Be more generous at assigning $z to the home directory -- do this
+		for programs that are specified through a .forward file.
+		Fix from Andrew Chang of Sun Microsystems.
+	Always save a fatal error message in preference to a non-fatal
+		error message so that the "subject" line of return
+		messages is the best possible.
+	CONFIG: reduce the number of quotes needed to quote configuration
+		parameters with commas: two quotes should work now, e.g.,
+		define(ALIAS_FILE, ``/etc/aliases,/etc/aliases.local'').
+	CONFIG: class $=Z is a set of UUCP hosts that use uucp-dom
+		connections (domain-ized UUCP).
+	CONFIG: fix bug in default maps (-o must be before database file
+		name).  Pointed out by Christophe Wolfhugel.  
+	CONFIG: add FEATURE(nodns) to state that we are not relying on
+		DNS.  This would presumably be used in UUCP islands.
+	CONFIG: add OSTYPE(nextstep) and OSTYPE(linux).
+	CONFIG: log $u in Received: line.  This is in technical violation
+		of the standards, since it doesn't guarantee a domain
+		on the address.
+	CONFIG: don't assume "m" in local mailer flags -- this means that
+		if you redefine LOCAL_MAILER_FLAGS you will have to include
+		the "m" flag should you want it.  Apparently some Solaris 2.2
+		installations can't handle multiple local recipients.
+		Problem noted by Josh Smith.
+	CONFIG: add confDOMAIN_NAME to set $j (if undefined, $j defaults).
+	CONFIG: change default version level from 4 to 5.
+	CONFIG: add FEATURE(nullclient) to create a config file that
+		forwards all mail to a hub without ever looking at the
+		addresses in any detail.
+	CONFIG: properly strip mailer: information off of relays when
+		used to change .BITNET form into %-hack form.
+	CONFIG: fix a problem that caused infinite loops if presented
+		with an address such as "!foo".
+	CONFIG: check for self literal (e.g., [128.32.131.12]) even if
+		the reverse "PTR" mapping is broken.  There's a better
+		way to do this, but the change is fairly major and I
+		want to hold it for another release.  Problem noted by
+		Bret Marquis.
+
+8.5/8.5		93/07/23
+	Serious bug: if you used a command line recipient that was unknown
+		sendmail would not send a return message (it was treating
+		everything as though it had an SMTP-style client that
+		would do the return itself).  Problem noted by Josh Smith.
+	Change "trymx" option in getcanonname() to ignore all MX data,
+		even during a T_ANY query.  This actually didn't break
+		anything, because the only time you called getcanonname
+		with !trymx was if you already knew there were no MX
+		records, but it is somewhat cleaner.  From Motonori
+		Nakamura.
+	Don't call getcanonname from getmxrr if you already know there
+		are no DNS records matching the name.
+	Fix a problem causing error messages to always include "The
+		original message was received ... from localhost".
+		The correct original host information is now included.
+	Previous change to cf/sh/makeinfo.sh doesn't port to Ultrix (their
+		version of "test" doesn't have the -x flag).  Change it
+		to use -f instead.  From John Myers.
+	CONFIG: 8.4 mistakenly set the default SMTP-style mailer to
+		esmtp -- it should be smtp.
+	CONFIG: send all relayed mail using confRELAY_MAILER (defaults
+		to "relay" (a variant of "smtp") if MAILER(smtp) is used,
+		else "suucp" if MAILER(uucp) is used, else "unknown");
+		this cleans up the configs somewhat.  This fixes a serious
+		problem that caused route-addrs to get mistaken as relays,
+		pointed out by John Myers.  WARNING: this also causes
+		the default on SMART_HOST to change from "suucp" to
+		"relay" if you have MAILER(smtp) specified.
+
+8.4/8.4		93/07/22
+	Add option `w'.  If you receive a message that comes to you because
+		you are the best (lowest preference) target of an MX, and
+		you haven't explicitly recognized the source MX host in
+		your .cf file, this option will cause you to try the target
+		host directly (as if there were no MX for it at all).  If
+		`w' is not set, this case is a configuration error.
+		Beware: if `w' is set, senders may get bogus errors like
+		"message timed out" or "host unknown" for problems that
+		are really configuration errors.  This option is
+		disrecommended, provided only for compatibility with
+		UIUC sendmail.
+	Fix a problem that caused the incoming socket to be left open
+		when sendmail forks after the DATA command.  This caused
+		calling systems to wait in FIN_WAIT_2 state until the
+		entire list was processed and the child closed -- a
+		potentially prodigious amount of time.  Problem noted
+		by Neil Rickert.
+	Fix problem (created in 6.64) that caused mail sent to multiple
+		addresses, one of which was a bad address, to completely
+		suppress the sending of the message.  This changes
+		handling of EF_FATALERRS somewhat, and adds an
+		EF_GLOBALERRS flag.  This also fixes a potential problem
+		with duplicate error messages if there is a syntax error
+		in the header of a message that isn't noticed until late
+		in processing.  Original problem pointed out by Josh Smith
+		of Harvey Mudd College.  This release includes quite a bit
+		of dickering with error handling (see below).
+	Back out SMTP transaction if MAIL gets nested 501 error.  This
+		will only hurt already-broken software and should help
+		humans.
+	Fix a problem that broke aliases when neither NDBM nor NEWDB were
+		compiled in.  It would never read the alias file.
+	Repair unbalanced `)' and `>' (the "open" versions are already
+		repaired).
+	Logging of "done" in dropenvelope() was incorrect: it would
+		log this even when the queue file still existed.  Change
+		this to only log "done" (at log level 11) when the
+		queue file is actually removed.  From John Myers.
+	Log "lost connection" in server SMTP at log level 20 if there
+		is no pending transaction.  Some senders just close the
+		connection rather than sending QUIT.
+	Fix a bug causing getmxrr to add a dot to the end of unqualified
+		domains that do not have MX records -- this would cause
+		the subsequent host name lookup to fail.  The problem
+		only occurred if you had FEATURE(nocanonify) set.
+		Problem noted by Rick McCarty of Texas Instruments.
+	Fix invocation of setvbuf when passed a -X flag -- I had
+		unwittingly used an ANSI C extension, and this caused
+		core dumps on some machines.
+	Diagnose self-destructive alias loops on RCPT as well as EXPN.
+		Previously it just gave an empty send queue, which
+		then gave either "Need RCPT (recipient)" at the DATA
+		(confusing, since you had given an RCPT command which
+		returned 250) or just dropped the email, depending on
+		whether you were running VERBose mode.  Now it usually
+		diagnoses this case as "aliasing/forwarding loop broken".
+		Unfortunately, it still doesn't adequately diagnose
+		some true error conditions.
+	Add internal concept of "warning messages" using 6xx codes.
+		These are not reported only to Postmaster.  Unbalanced
+		parens, brackets, and quotes are printed as 653 codes.
+		They are always mapped to 5xx codes before use in SMTP.
+	Clean up error messages to tell both the actual address that
+		failed and the alias they arose from.  This makes it
+		somewhat easier to diagnose problems.  Difficulty noted
+		by Motonori Nakamura.
+	Fix a problem that inappropriately added a ctladdr to addresses
+		that shouldn't have had one during a queue run.  This
+		caused error messages to be handled differently during
+		a queue run than a direct run.
+	Don't print the qf name and line number if you get errors during
+		the direct run of the queue from srvrsmtp -- this was
+		just extra stuff for users to crawl through.
+	Put command line flags on second line of pid file so you can
+		auto-restart the daemon with all appropriate arguments.
+		Use "kill `head -1 /etc/sendmail.pid`" to stop the
+		daemon, and "eval `tail -1 /etc/sendmail.pid`" to
+		restart it.
+	Remove the ``setuid(getuid())'' in main -- this caused the
+		IDENT daemon to screw up.  This required that I change
+		HASSETEUID to HASSETREUID and complicate the mode
+		changing somewhat because both Ultrix and SunOS seem
+		to have a bug causing seteuid() to set the saved uid
+		as well as the effective.  The program test/t_setreuid.c
+		will test to see if your implementation of setreuid(2)
+		is appropriately functional.
+	The FallBackMX (option V) handling failed to properly identify
+		fallback to yourself -- most of the code was there,
+		but it wasn't being enabled.  Problem noted by Murray
+		Kucherawy of the University of Waterloo.
+	Change :include: open timeout from ETIMEDOUT to an internal
+		code EOPENTIMEOUT; this avoids adding "during SmtpPhase
+		with CurHostName" in error messages, which can be
+		confusing.  Reported by Jonathan Kamens of OpenVision
+		Technologies.
+	Back out setpgrp (setpgid on POSIX systems) call to reset the
+		process group id.  The original fix was to get around
+		some problems with recalcitrant MUAs, but it breaks
+		any call from a shell that creates a process group id
+		different from the process id.  I could try to fix
+		this by diddling the tty owner (using tcsetpgrp or
+		equivalent) but this is too likely to break other
+		things.
+	Portability changes:
+		Support -M as equivalent to -oM on Ultrix -- apparently
+			DECnet calls sendmail with -MrDECnet -Ms<HOST> -bs
+			instead of using standard flags.  Oh joy.  This
+			behaviour reported by Jon Giltner of University
+			of Colorado.
+		SGI IRIX  -- this includes several changes that should
+			help other strict ANSI compilers.
+		SCO Unix -- from Murray Kucherawy of HookUp Communication
+			Corporation.
+		Solaris running the Sun C compiler (which despite the
+			documentation apparently doesn't define
+			__STDC__ by default).
+		ConvexOS from Eric Schnoebelen of Convex.
+		Sony NEWS workstations and Omron LUNA workstations from
+			Motonori Nakamura.
+	CONFIG: add confTRY_NULL_MX_LIST to set option `w'.
+	CONFIG: delete `C' and `e' from default SMTP mailers flags;
+		several people have made a good argument that this
+		creates more problems than it solves (although this
+		may prove painful in the short run).
+	CONFIG: generalize all the relays to accept a "mailer:host"
+		format.
+	CONFIG: move local processing in ruleset 0 into a new ruleset
+		98 (8 on old sendmail).  Domain literal [a.b.c.d]
+		addresses are also passed through this ruleset.
+	CONFIG: if neither SMART_HOST nor MAILER(smtp) were defined,
+		internet-style addresses would "fall off the end" of
+		ruleset zero and be interpreted as local -- however,
+		the angle brackets confused the recursive call.
+		These are now diagnosed as "Unrecognized host name".
+	CONFIG: USENET rules weren't included in S0 because of a mistaken
+		ifdef(`_MAILER_USENET_') instead of
+		ifdef(`_MAILER_usenet_').  Problem found by Rein Tollevik
+		of SINTEF RUNIT, Oslo.
+	CONFIG: move up LOCAL_RULE_0 processing so that it happens very
+		early in ruleset 0; this allows .mc authors to bypass
+		things like the "short circuit" code for local addresses.
+		Prompted by a comment by Bill Wisner of The Well.
+	CONFIG: add confSMTP_MAILER to define the mailer used (smtp or
+		esmtp) to send SMTP mail.  This allows you to default
+		to esmtp but use a mailertable or other override to
+		deal with broken servers.  This logic was pointed out
+		to me by Bill Wisner.  Ditto for confLOCAL_MAILER.
+	Changes to cf/sh/makeinfo.sh to make it portable to SVR4
+		environments.  Ugly as sin.
+
+8.3/8.3		93/07/13
+	Fix setuid problems introduced in 8.2 that caused messages
+		like "Cannot create qfXXXXXX: Invalid argument"
+		or "Cannot reopen dfXXXXXX: Permission denied".  This
+		involved a new compile flag "HASSETEUID" that takes
+		the place of the old _POSIX_SAVED_IDS -- it turns out
+		that the POSIX interface is broken enough to break
+		some systems badly.  This includes some fixes for
+		HP-UX.  Also fixes problems where the real uid is
+		not reset properly on startup (from Neil Rickert).
+	Fix a problem that caused timed out messages to not report the
+		addresses that timed out.  Error messages are also more
+		"user friendly".
+	Drop required bandwidth on connections from 64 bytes/sec to
+		16 bytes/sec.
+	Further Solaris portability changes -- doesn't require the BSD
+		compatibility library.  This also adds a new
+		"HASGETDTABLESIZE" compile flag which can be used if
+		you want to use getdtablesize(2) instead of sysconf(2).
+		These are loosely based on changes from David Meyer at
+		University of Oregon.  This now seems to work, at least
+		for quick test cases.
+	Fix a problem that can cause duplicate error messages to be
+		sent if you are in SMTP, you send to multiple addresses,
+		and at least one of those addresses is good and points
+		to an account that has a .forward file (whew!).
+	Fix a problem causing messages to be discarded if checkcompat()
+		returned EX_TEMPFAIL (because it didn't properly mark
+		the "to" address).  Problem noted by John Myers.
+	Fix dfopen to return NULL if the open failed; I was depending
+		on fdopen(-1) returning NULL, which isn't the case.  This
+		isn't serious, but does result in weird error diagnoses.
+		From Michael Corrigan.
+	CONFIG: add UUCP_MAX_SIZE M4 macro to set the maximum size of
+		messages sent through UUCP-family mailers.  Suggested
+		by Bill Wisner of The Well.
+	CONFIG: if both MAILER(uucp) and MAILER(smtp) are specified,
+		include a "uucp-dom" mailer that uses domain-style
+		addressing.  Suggested by Bill Wisner.
+	CONFIG: Add LOCAL_SHELL_FLAGS and LOCAL_SHELL_ARGS to match
+		LOCAL_MAILER_FLAGS and LOCAL_MAILER_ARGS.  Suggested by
+		Christophe Wolfhugel.
+	CONFIG: Add OSTYPE(aix3).  From Christophe Wolfhugel.
+
+8.2/8.2		93/07/11
+	Don't drop out on config file parse errors in -bt mode.
+	On older configuration files, assume option "l" (use Errors-To
+		header) for back compatibility.  NOTE:  this DOES NOT
+		imply an endorsement of the Errors-To: header in any way.
+	Accept -x flag on AIX-3 as well as OSF/1.  Why, why, why???
+	Don't log errors on EHLO -- it isn't a "real" error for an old
+		SMTP server to give an error on this command, and
+		logging it in the transcript can be confusing.  Fix
+		from Bill Wisner.
+	IRIX compatibility changes provided by Dan Rich
+		<drich@sandman.lerc.nasa.gov>.
+	Solaris 2 compatibility changes.  Provided by Bob Cunningham
+		<bob@kahala.soest.hawaii.edu>, John Oleynick
+		<juo@klinzhai.rutgers.edu>
+	Debugging: -d17 was overloaded (hostsignature and usersmtp.c);
+		move usersmtp (smtpinit and smtpmailfrom) to -d18 to
+		match the other flags in that file.
+	Flush transcript before fork in mailfile().  From Eric Wassenaar.
+	Save h_errno in mci struct and improve error message display.
+		Changes from Eric Wassenaar.
+	Open /dev/null for the transcript if the create of the xf file
+		failed; this avoids at least one possible null pointer
+		reference in very weird cases.  From Eric Wassenaar.
+	Clean up statistics gathering; it was over-reporting because of
+		forks.  From Eric Wassenaar.
+	Fix problem that causes old Return-Path: line to override new
+		Return-Path: line (conf.c needs H_FORCE to avoid
+		re-using old value).  From Motonori Nakamura.
+	Fix broken -m flag in K definition -- even if -m (match only)
+		was specified, it would still replace the key with the
+		value.  Noted by Rick McCarty of Texas Instruments.
+	If the name server timed out over several days, no "timed out"
+		message would ever be sent back.  The timeout code
+		has been moved from markfailure() to dropenvelope()
+		so that all such failures should be diagnosted.  Pointed
+		out by Christophe Wolfhugel and others.
+	Relax safefile() constraints: directories in an include or
+		forward path must be readable by self if the controlling
+		user owns the entry, readable by all otherwise (e.g.,
+		when reading your .forward file, you have to own and
+		have X permssion in it; everyone needs X permission in
+		the root and directories leading up to your home);
+		include files must be readable by anyone, but need not
+		be owned by you.
+	If _POSIX_SAVED_IDS is defined, setuid to the owner before
+		reading a .forward file; this gets around some problems
+		on NFS mounts if root permission is not exported and
+		the user's home directory isn't x'able.
+	Additional NeXT portability enhancements from Axel Zinser.
+	Additional HP-UX portability enhancements from Brian Bullen.
+	Add a timeout around SMTP message writes; this assumes you can
+		get throughput of at least 64 bytes/second.  Note that
+		this does not impact the "datafinal" default, which
+		is separate; this is just intended to work around
+		network clogs that will occur before the final dot
+		is sent.  From Eric Wassenaar.
+	Change map code to set the "include null" flag adaptively --
+		it initially tries both, but if it finds anything
+		matching without a null it never tries again with a
+		null and vice versa.  If -N is specified, it never
+		tries without the null and creates new maps with a
+		null byte.  If -O is specified, it never tries with
+		the null (for efficiency).  If -N and -O are specified,
+		you get -NO (get it?) lookup at all, so this would
+		be a bad idea.  If you don't specify either -N or -O,
+		it adapts.
+	Fix recognition of "same from address" so that MH submissions
+		will insert the appropriate full name information;
+		this used to work and got broken somewhere along the
+		way.
+	Some changes to eliminate some unnecessary SYSERRs in the
+		log.  For example, if you lost a connection, don't
+		bother reporting that fact on the connection you lost.
+	Add some "extended debugging" flags to try to track down
+		why we get occassional problems with file descriptor
+		one being closed when execing a mailer; it seems to
+		only happen when there has been another error in the
+		same transaction.  This requires XDEBUG, defined
+		by default in conf.h.
+	Add "-X filename" command line flag, which logs both sides of
+		all SMTP transactions.  This is intended ONLY for
+		debugging bad implementations of other mailers; start
+		it up, send a message from a mailer that is failing,
+		and then kill it off and examine the indicated log.
+		This output is not intended to be particularly human
+		readable.  This also adds the HASSETVBUF compile
+		flag, defaulted on if your compiler defines __STDC__.
+	CONFIG: change SMART_HOST to override an SMTP mailer.  If you
+		have a local net that should get direct connects, you
+		will need to use LOCAL_NET_CONFIG to catch these hosts.
+		See cf/README for an example.
+	CONFIG: add LOCAL_MAILER_ARGS (default: `mail -d $u') to handle
+		sites that don't use the -d flag.
+	CONFIG: hide recipient addresses as well as sender addresses
+		behind $M if FEATURE(allmasquerade) is specified; this
+		has been requested by several people, but can break
+		local aliases.  For example, if you mail to "localalias"
+		this will be rewritten as "localalias@masqueradehost";
+		although initial delivery will work, replies will be
+		broken.  Use it sparingly.
+	CONFIG: add FEATURE(domaintable).  This maps unqualified domains
+		to qualified domains in headers.  I believe this is
+		largely equivalent to the IDA feature of the same name.
+	CONFIG: use $U as UUCP name instead of $k.  This permits you
+		to override the "system name" as your UUCP name --
+		in particular, to use domain-ized UUCP names.  From
+		Bill Wisner of The Well.
+	CONFIG: create new mailer "esmtp" that always tries EHLO
+		first.  This is currently unused in the config files,
+		but could be used in a mailertable entry.
+
+8.1C/8.1B	93/06/27
+	Serious security bug fix: it was possible to read any file on
+		the system, regardless of ownership and permissions.
+	If a subroutine returns a fully qualified address, return it
+		immediately instead of feeding it back into rewriting.
+		This fixes a problem with mailertable lookups.
+	CONFIG: fix some M4 frotz (concat => CONCAT)
+
+8.1B/8.1A	93/06/12
+	Serious bug fix: pattern matching backup algorithm stepped by
+		two tokens in classes instead of one.  Found by Claus
+		Assmann at University of Kiel, Germany.
+
+8.1A/8.1A	93/06/08
+	Another mailertable fix....
+
+8.1/8.1		93/06/07
+	4.4BSD freeze.  No semantic changes.
+
+6.65/6.34	93/06/06
+	Fix some lintish problems.
+	Fix some cases where server SMTP behaved poorly when handed bogus
+		input, pointed out by Eric Wassenaar.
+	CONFIG: fix some more (sigh) mailertable bugs -- thanks to
+		Motonori Nakamura of Kyoto University (again).
+
+6.64/6.33	93/06/05
+	Don't send 050 (-v) information after the 250 response to a QUIT
+		command in srvrsmtp -- clients usually close the connection
+		at this point, and it causes bogus error messages.
+	Don't send messages that have errors on input (such as unbalanced
+		parentheses) during SMTP transactions, since a return
+		message has (probably) already been sent.
+	Give better diagnostics on timeouts during network reads, including
+		information similar to the SMTP phase.
+	Fix bug that caused SMTP messages to deliver synchronously; this
+		happened after the DATA 250, and hence caused reading the
+		next command to be delayed.
+	Ignore Errors-To: header unless 'l' (lower case el) header is
+		specified.  The Errors-To: header violates RFC 1123.
+		Errors-To: was only needed to take the place of the
+		envelope sender in the days when most Unix mailers
+		didn't understand about the two kinds of senders.
+	Don't send warning messages in response to automatically generated
+		messages (that is, those From:<>).
+	CONFIG: fix some rather stupid typos in the mailertable code
+		pointed out by Motonori Nakamura of Kyoto University.
+	CONFIG: add confUSE_ERRORS_TO configuration option.
+	CONFIG: if ALWAYS_ADD_DOMAIN is selected, try to use $M
+		(masquerade name) instead of $j.
+	CONFIG: don't add dots to relay names (added in 6.29); it breaks
+		several things, and can be simulated by dot terminating
+		the names of relays.  For example, use:
+			DBbit.net.relay.
+		(note the trailing dot).
+
+6.63/6.32	93/06/01
+	Fix prototypes to eliminate chars in argument lists -- some
+		compilers are pissy about this.
+	Log protocol ($r) and body type if set so we can determine if
+		the adaptive algorithms are working.
+	Pessimize on locking of database files (particularly for NEWDB
+		databases) during opens.  There were problems with
+		processes opening the file while it was rebuilt; since
+		NEWDB caches heavily, the reader opened an empty file,
+		which is an error.  If your system has the ability to
+		lock atomically on open, this works properly; otherwise,
+		there are race conditions.
+	Check mod time on .pag file instead of .dir in NDBM aliases
+		because the .dir file doesn't get updated for small
+		alias files.  From John Gardiner Myers of CMU.
+	More Solaris portability -- it now compiles on Solaris, but
+		hangs up in gethostbyname().
+	Move setting of RES_DEBUG flag before first myhostname() call
+		so we can see name server traffic on that call.
+	Fsync() queue files.
+	Fix a problem that causes -bi to try to rebuild maps other than
+		the alias file(s).
+	Fix a problem that caused udb to reject entries from any but
+		the first database listed.
+	Rearrange doc subdirectory for 4.4BSD release tape.
+	CONFIG: put $r into the Received line.  This was an oversight.
+	CONFIG: fix typo (call to ruleset 99 should have been rulset 90).
+	CONFIG: move "auxiliary" subroutines to be in ruleset 90-99
+		range -- in the long run, single digit rulesets may
+		become reserved for builtin use by sendmail.
+	CONFIG: fix major problem that causes host aliases (that is,
+		anything in $=w != $j) to not be recognized.  This has
+		been around since 6.30.
+
+6.62/6.31	93/05/28
+	BETA RELEASE
+	Fix recursive syserr (if there is an error printing a syserr
+		message).  This makes the code much less eager to consider
+		a write error as serious.  This also includes some
+		heuristics to be clever about closed connections.
+	Lock NEWDB files during gets.  This requires version 1.5 or later
+		of the db library.  If you have an older version, you
+		can use -DOLD_NEWDB.  This will go away in a few weeks.
+	Fix problem causing aliases that use host maps to get overwritten.
+	Do appropriate byte swapping on port numbers in ident protocol
+		code.  Fix from Allan Johannesen of WPI.
+	Defer opening of map files to the same time as alias files so that
+		the daemon will tend to pick up new versions more promptly.
+	Prototype a bunch more functions.
+	Some Solaris 2.1 changes (still doesn't link though).
+	Try to simplify Makefiles by including more subordinate #defines
+		in conf.h (based on OS type).
+	CONFIG: check for domains if FEATURE(mailertable) is defined.
+		For example, if the host name is "knecht.cs.berkeley.edu"
+		it will search the following mailertable keys:
+			knecht.cs.berkeley.edu
+			.cs.berkeley.edu
+			.berkeley.edu
+			.edu
+		This could be used to replace the special relays for bitnet
+		and similar nets.
+
+6.61/6.30	93/05/24
+	Fix problem that prevented appending dots on canonified host
+		names.  This breaks tons of config files -- very
+		important fix.
+	Fix improper pointer dereference in response to HELO command.
+	Fix core dump if debugging set in map_rewrite.
+	CONFIG: add FEATURE(always_add_domain) to always attach the
+		local domain (only impacts local mail).
+	CONFIG: try to avoid turning names into $j -- although
+		technically a host can only have one "canonical name",
+		it seems to be common practice to have several.
+
+6.60/6.29	93/05/22
+	Major change: merge alias databases with maps.  This expands and
+		changes the map class interface but fixes a bunch of bugs.
+		The important user-visible change is that the file name
+		in a K line now does not include the ".db" extension; this
+		is added automatically.  Also, the -d (NIS domain) flag is
+		missing from the K config line; use @domain instead.
+		When compiling, the *_MAP names are gone -- just compile
+		in NDBM, NEWDB, and/or NIS support.
+	Announce mailer/host/user triple on -bv flag -- from Brian
+		Bullen of Stirling University.
+	Don't send more than one line in response to HELO -- it confuses
+		Pony Express, which then behaves very badly.  However,
+		this change does send two line 220 greetings, with the
+		second line reading "ESMTP spoken here".  The usersmtp
+		module recognizes this and goes into ESMTP mode regardless
+		of the setting of the "a" mailer flag.  Thus, "a" means
+		"always try EHLO".
+	AIX portability changes (thanks to Christophe Wolfhugel of
+		Herve Schauer Consultants (Paris) for providing me with
+		an INSA account for this purpose).  Lightly tested.  Use
+		-D_AIX3.  This probably breaks compatibility with some
+		older systems (e.g., 4.2bsd) but still works on SunOS
+		4.1.2, Ultrix 4.2A, HP-UX 8.07, OSF/1 T1.3, and AIX 3.2.3.
+	Fix a problem causing an error message loop if the output channel
+		is hosed.
+	Add the Makefiles that I use for various environments -- some are
+		Berkeley make versions and some are old make versions.
+		My makefile for the NeXT box has gotten lost, alas!
+	PRALIASES: support for printing NEWDB databases.  From
+		Michael J. Corrigan of U.C. San Diego.
+	CONFIG: don't pass pseudo-domains to $[ ... $] (if you have
+		a wildcard MX it can have weird results).  From
+		Christophe Wolfhugel.
+	CONFIG: dot terminate relay hostnames in S0.  From Christophe
+		Wolfhugel.
+
+6.59/6.28	93/05/13
+	Log version with SMTP daemon startup message.
+	Adjust setproctitle to work on NetBSD and BSD/386.
+	Fix null pointer reference in MX fallback code.
+	A bunch of minor fixes from Eric Wassenaar:
+		If deliver cannot execv the mailer, return EX_OSERR
+			instead of EX_TEMPFAIL (to give better
+			error messages).
+		Consistently malloc e_message.
+		Catch degenerate case of calling returntosender()
+			with an empty returnq.
+		MIME reformatting.
+
+6.58/6.28	93/05/13
+	Fix bug that can cause incorrect verbose display of user smtp
+		messages.
+	Disable SMTP VERB command if PRIV_NOEXPN is set (since this
+		could reveal the same information.
+	Allow failure when reading SMTP greeting message to go on to
+		next MX host.
+	Add "MIME-Version: 1.0" header if using MIME (this was NOT
+		included in RFC 1344, but Bill King of Allan-Bradley
+		Company forwarded me email from Nathaniel Borenstein
+		claiming that it was an inadvertent omission).
+	Don't use Content-Type: X-message-header.  According to John
+		Myers of CMU, many MIME readers will completely ignore
+		the data if they don't recognize it.  Instead, just
+		add a blank line to make it a legal (empty) message.
+	Fix problem causing dots to keep getting appended to cached
+		hostnames.  This can cause buffer overrun conditions.
+		The problem was found by Erik Forsberg of Retix,
+		although I used a different bug fix than he provided.
+	Fix parsing of split header/envelope rewriting specs -- from
+		Eric Forsberg.
+	Fix from Eric Wassenaar to correct To: lists in error messages.
+
+6.57/6.28	93/05/11
+	Fix minor glitch causing extra ctladdrs to be output to queue
+		file.  Just an annoyance.
+	Cache results of name server canonification lookups to avoid
+		backed up queue runs.
+	Major rewrite of alias.c: considerable cleanup, plus sample
+		(untested) support for NIS aliases.  The "A" option
+		can now be a comma separated list (or be repeated) --
+		that is, you can have multiple alias databases.  Each
+		database can have the syntax ``class:file''; if no class
+		is specified, the "implicit" class is assumed.  Implicit
+		searches through a list of compiled in types -- hash,
+		dbm, nis, and stab.  Alias files are searched in the
+		order they are listed.  For example:
+			OAhash:/etc/aliases.local,/etc/aliases
+			OAnis:mail.aliases@my.nis.domain
+		first searches the hash database /etc/aliases.local,
+		then the regular /etc/aliases database, then the NIS
+		map "mail.aliases" in the NIS domain "my.nis.domain".
+	If in Verbose mode (probably from VERB command) run SMTP job
+		in foreground and don't do RCPT optimizations.
+	Add udb :mailsender as equivalent to owner- for regular aliases.
+	Delete option 8; add option 7 that means the opposite.  That is,
+		default to 8-bit mode; a special option is needed to
+		force sendmail into 7 bit mode.
+	Send error messages in encapsulated MIME format.
+	New compile flag "NIS" that turns on NIS alias and NIS map
+		support.
+	Add "j" option to send error messages in MIME (RFC 1341)
+		encapsulated message format per RFC 1344.  The
+		syntax is pretty ugly if you don't have MIME-aware
+		user agents.
+	Clean up message handling (for display in mailq output).
+	New setproctitle implementation for 4.4bsd.
+	Create files (such as ~/dead.letter) using mode FileMode (the
+		F option value) instead of 0666.
+	Fix bug causing output of EXPN command to not be fully qualified.
+		This may cause some problems with UUCP addresses that
+		will require some config file assistance -- specifically,
+		the $: part has to include the host name for this output
+		to make sense.
+	Fix a problem that sometimes diagnosed errors and still sent the
+		message if the header syntax was bad.
+	Fix a bug that caused an error message to be emailed when sendmail
+		was operating in -bv mode.
+	Add "ListenQueueSize" keyword to daemon options option (OO) to
+		set the queue size parameter passed to listen().  You
+		will normally have to tweak your kernel to up this.
+	Strip spaces off of beginning of message-id before logging (in
+		case it was folded across lines).
+	Tweak compile flags in daemon.c -- there were some cases where
+		it wouldn't work without NETINET.
+	Change *file* mailer to output all the usual default headers
+		(From, Date, Message-Id).  It gets used when sending
+		back error messages.
+	CONFIG: explicitly catch and diagnose list:; syntax in ruleset
+		zero -- this is not a valid recipient syntax according
+		to RFC 821.
+	CONFIG: add confMIME_FORMAT_ERRORS to send error messages in
+		MIME format.  Defaults to on.
+	CONFIG: add SMTP_MAILER_FLAGS and UUCP_MAILER_FLAGS to augment
+		the flags for those mailers.
+
+6.56/6.27	93/05/01
+	Fix problem that causes the fallback mail to postmaster
+		(case ESM_POSTMASTER in savemail()) to not look at
+		aliases (ugh).
+	Some more HPUX tweaking (compile flag hpux => __hpux so it
+		still works in ANSI mode).
+	Don't try to flock non-regular files when mailing to a file.
+		In particular, this was a problem if you tried to
+		send to /dev/null.
+	Fix a weird bug that can cause senders to be queued as
+		recipients if the name server is down when the mail
+		is initially sent.  This hack just ignores sender
+		deletion (essentially, it sets the MeToo flag) if there
+		is a TEMPFAIL during processing of the sender address.
+		Obscure.
+	Fix a dangling else problem -- from Brian Bullen from University
+		of Stirling, UK.
+	Add the "b" mailer flag to force a blank line on the end of
+		messages.  Some brilliant versions of /bin/mail insist
+		on this but do not add it themselves.
+	Add the "g" mailer flag to prevent user SMTP from sending
+		"MAIL From:<>".  This is only intended to be a
+		transitional gesture, and should not be used if at
+		all possible.  It appears that Berkeley and IDA
+		config files have always handled this properly; the
+		UK config kit apparently does not.
+	Don't lowercase and then capitalize header field names -- leave
+		them with original capitalization.  Fixes from Bill
+		King of Allen-Bradley Company.
+	Further cleanup and improved reporting of error messages,
+		particularly conditions that cause messages to be
+		requeued for future delivery.
+	Tweak syslog priorities in some cases.
+	CONFIG: clean up route-addr on UUCP addresses.
+
+6.55/6.25	93/04/27
+	HPUX 8.07 compatibility changes in getla() -- I had to make
+		these changes to get it to work at Berkeley, although
+		others seem to have been working before (???).
+	Various patches to XLA code.
+	Fix problem that causes setuid bit on files to be ignored from
+		SMTP or in queue runs.  Problem noted by Jason Ornstein
+		of Under The Wire, Inc.
+	Fix problem that can cause CNAMEs to be ignored.
+	Generalize getmxrr to match local host in $=w instead of a
+		single name passed in.
+	Some cleanup from Eric Wassenaar:
+		Use FileMailer instead of ProgMailer in two places.
+		Eliminate duplicate 8th-bit stripping in commaize.
+		Fix a problem with mis-parsing of backslash escapes
+			under some circumstances.
+	NIS map fix (was always including trailing null character)
+		from Mike Glendinning of Ingres UK.
+	Add "a" mailer flag to try using ESMTP.  It tries the EHLO
+		command and if that fails falls back to regular SMTP.
+		Also parses EHLO option keywords.  If host supports
+		SIZE extension, this is added to the MAIL FROM:
+		command.
+	Extend "b" option to include a second value which is the
+		maximum message size this server is willing to accept.
+		For example, a value of "10/1000000" says that there
+		must be ten blocks free, and sendmail will reject
+		any message larger than one megabyte.
+	Some portability hooks for NeXT (this could be applicable
+		to Mach in general).  You have to create an empty
+		file called "unistd.h" to get it to compile.
+	Adjust config values (MAXLINE, MAXATOM, and PSBUFSIZE) to
+		be more generous.
+	Add X400-Received: to the list of headers tagged with H_TRACE
+		in conf.c.  From Bill King, Allen-Bradley Co.
+
+6.54/6.25	93/04/19
+	Fix problem that caused redefinition of SMTP and QUEUE compile
+		flags.  Pointed out by Jon Forrest of the Sequoia 2000
+		project at Berkeley.
+	Properly handle \! hack -- it was treating host\!user as one
+		token (host!user) instead of three (host, !, user).
+		Fix from Eric Wassenaar of NIKHEF-H.
+	Fix compilation problem in getauthinfo() if IDENTPROTO is off.
+	Turn off DEFNAMES and DNSRCH when getting the hostsignature
+		(i.e., MX records) in level 1 configuration files; this
+		matches the old behaviour.  From Motonori Nakamura of
+		Kyoto University.
+	Improve error message printing -- if sent through an alias,
+		error messages include the name of the alias in the
+		message.  Unfortunately, in order to make this work
+		properly in queue runs, this changes the format of the
+		C line in the qf file.  The relatively uselessness of
+		the previous information was pointed out to me by
+		Allan E Johannesen of WPI.
+	Add XLA compile flag to add hooks to Christophe Wolfhugel's
+		extended load average code.  This is still in very early
+		form.  For information regarding the guts of the xla
+		code, contact Christophe.Wolfhugel@grasp.insa-lyon.fr.
+	Additional hooks for detecting tempfails in rewriting rules
+		(that is, in map lookups).
+
+6.53/6.25	93/04/15
+	Properly diagnose ruleset zero returning null (instead of a mailer
+		triple).  From Motonori Nakamura of Kyoto University.
+	More generalization of socket code for other protocols.
+	Shorten timeouts on reverse name lookups -- since they are done
+		during connection establishment, long timeouts here can
+		cause higher level timeouts.  This mainly serves to accept
+		mail from hosts that do not have proper reverse (PTR) DNS
+		records set up.
+	Reset e_statmsg before each mailer invocation to avoid bogus
+		messages in the log.
+	Redefine $r, $s, and $_ in error envelopes so you don't get
+		incorrect cruft in the error message.  Problem noted by
+		Motonori Nakamura of Kyoto University.
+	Fix a problem that can cause failure to return errors to Postmaster
+		in certain cases.  From Motonori Nakamura.
+	Fix a problem that can cause some systems to give duplicate error
+		messages when a bad syntax address such as "<a" is presented
+		to an SMTP server.   It doesn't seem to occur on all
+		machines.  From Motonori Nakamura.
+	Default IDENTPROTO off for Ultrix and HPUX, which apparently have
+		the interesting "feature" that when they receive a "Host
+		unreachable" message they closes all open connections to
+		that host.  However, some firewall gateways send this message
+		if you try to connect to an unauthorized port, such as the
+		IDENT port (113).  Thus, no email can be received from such
+		hosts.  There is some evidence that versions of Ultrix before
+		4.3 do not have this problem.  Thanks to Tom Ivar Helbekkmo
+		for pointing out this behaviour to me and to Michael Corrigan
+		of U.C. San Diego for informing me about the HPUX problem.
+	Allow IPC mailers to return a colon-separated list of hosts in the
+		$@ clause; these are searched in order as though they were
+		MX records.
+	When sending an error report, print the list of addresses tagged
+		as bad.  Requested by Allan E Johannesen of WPI.
+	Change map function calls to return a status code.  This gets
+		passed back as the result of rewrite.  Parseaddr marks
+		the address as a QUEUEUP address if the return code is
+		EX_TEMPFAIL.  All this to queue properly if the name
+		server is down.  This code is not well tested.  This code
+		changes the interface to map lookup functions (a fifth
+		parameter, int *statp, is added).  Feature requested by
+		Dan Oscarsson.
+	Don't delete quotes (in the dequote map) if there are spaces in
+		the string, since this would cause them to be replaced by
+		the SpaceSub character.
+	Accept BODY=8BITMIME on SMTP MAIL command.  This isn't advertised
+		because the 8BIT to 7BIT translation doesn't exist yet.
+		This does add a "bodytype" field to both envelope and
+		queue file and a -B command line flag to pass the type in
+		during direct invocations.
+	Discard return error messages only on responses to responses to
+		responses, not on responses to responses.  That is, the
+		algorithm is to try return to sender, then return to
+		postmaster, then discard.  Previously it discarded
+		immediately if the return to sender pass failed.
+	CONFIG: back out change to hide unqualified hostnames behind %-hack.
+		This screws up local aliases and .forward files.
+	CONFIG: add FEATURE(nocanonify) to turn off calls to $[ ... $];
+		some sites only handle completely canonified names.
+		Requested by John Gardiner Myers of CMU.
+	CONFIG: some UUCP code was still included even if FEATURE(nouucp)
+		was specified.
+
+6.52/6.24	93/04/10
+	Clean up some minor glitches on error return messages pointed out
+		by Motonori Nakamura of Kyoto University.
+	Fix reply() to not reset SmtpReplyBuffer on fatal errors; this
+		was supposed to reset SmtpMsg Buffer.  This makes the
+		client side code virtually useless.  Reported by Allan
+		E Johannesen of WPI and Phil Brandenberger of Swarthmore.
+	Better debug messages if fuzzy is disabled, suggested by Allan
+		E Johannesen of WPI.
+	Offset SmtpReplyBuffer by four in usersmtp when checking for
+		loopback.  From Eric Wassenaar.
+	Don't set $s until after runinchild in srvrsmtp -- otherwise
+		it gets cleared.  From Eric Wassenaar.
+	Implement IDA-style $&x for deferred macro expansion.
+	More POSIX compatibility.
+	CONFIG: Hide unqualified hostnames behind %-hack using $s as the
+		actual sender.  This is only done if $r is non-null, that
+		is, if this is not locally submitted mail.
+	CONFIG: Add FEATURE(bitdomain) allowing mapping of BITNET host
+		names to internet domains.  A program contributed by
+		John Gardiner Myers of CMU to create the maps is included
+		in the contrib directory (in the "misc" tar file).
+	CONFIG: Add FEATURE(uucpdomain) for a similar mapping for UUCP
+		hosts.  There is currently no tool to create this map.
+
+6.51/6.23	93/04/04
+	Add D= mailer flag to specify a path of possible working directories
+		in which to execute the mailer.  This is intended for the
+		prog mailer; some shells can get upset if they don't have
+		access to the current directory.
+	Add RFC 1413 (IDENT) protocol support.  This is only very loosely
+		tested.  This adds a $_ macro to be the authenticated
+		info (in ``user@domain [address]'' form) and debug flag
+		9 to trace the protocol.
+	Check for loopbacks in usersmtp instead of srvrsmtp -- there is no
+		reason for a local agent to not be talking to the localhost
+		(although the inverse is not true).
+	Add a few hooks for automated map rebuilding.  This is certainly
+		not done yet.
+	CONFIG: Have prog mailer specify a path of ``D=$z:/'' -- that is,
+		user's home directory then the root.
+	CONFIG: Log RFC 1413 identification in Received: line.
+
+6.50/6.22	93/04/01
+	Fixes to requeueing code to make it compute priority, nrcpts,
+		and the like properly.
+
+6.49/6.22	93/04/01
+	Diagnose incorrect privacy flags.  Suggested by Bryan Costales
+		of ICSI.
+	Some ANSI C fixes.
+	Arrange to quote backslashes as well as other special characters
+		in the phrase part of a route-addr.
+	Some fixes to FallBackMX code suggested by Motonori Nakamura of
+		Kyoto University.
+	More vigorous zeroing of CurHostAddr to avoid logging of bogus
+		host addresses when you are actually just printing
+		information from the MCI structure; problem noted by
+		Michael Corrigan of U.C. San Diego.
+	Don't ignore rest of queue if any job is not runnable.  This can
+		also cause an incorrect job to be lost.  Fix from
+		Eric Wassenaar.
+	Always respond "quickly" to RCPT command; do alias expansion and
+		the like later.  This also means that mail for lists that
+		have errors will be acccepted, and an error sent back
+		later.  This is done by instantiating the queue file
+		and then immediately running and requeueing it.
+
+6.48/6.22	93/03/30
+	Fix incorrect diagnosis of infinite loop in ruleset.  Problem noted
+		by several people.
+	Improve information printed when infinite loops are discovered.
+	Zero CurHostAddr to fix erroneous internet addresses in log when no
+		addresses can be bound.  Pointed out by Motonori Nakamura
+		of Kyoto University.
+	"Probe" SMTP connections using RSET instead of NOOP "just in case".
+		Suggested by John Gardiner Myers of CMU.
+	Don't warn about -f if you are setting sender to yourself.
+
+6.47/6.22	93/03/29
+	Fix incompatible call to endmailer in smtpquit which causes core
+		dumps.  Noted by Allan E Johannesen of WPI.
+	HPUX portability changes from Michael J. Corrigan of UC San Diego.
+	Require MAIL before RCPT command in srvrsmtp.c.  This had been
+		intentional from the 821 draft days when the order wasn't
+		clear, but is silly now.
+	Fix bug in nis_magic routine that was initializing parameters
+		incorrectly.  Fix from Takahiro Kanbe of Fuji Xerox
+		Information Systems Co., Ltd.
+	Change default for PrivacyFlags in conf.c to 0 -- since it always
+		"or"s in new values, there was no way to turn off the
+		AuthWarning stuff.
+	Add O option to set SMTP daemon options.
+	Add V option to set fallback MX host.  This always sorts at lower
+		priority than anything it gets from the name server.  It
+		should only be used for environments with very bad network
+		connectivity.  Requested by several people.
+	Log sending info.  It's not clear this is a good idea.
+	CONFIG: fix typo in mailertable code.  Noted by Phil Brandenberger
+		of Swarthmore.
+	CONFIG: add confDAEMON_OPTIONS and confFALLBACK_MX to set options
+		O and V, respectively.
+
+6.46/6.21	93/03/26
+	Fix botch in server SMTP that broke transactions that did not
+		use HELO first (like MH).  Fix from Michael Corrigan
+		of U.C. San Diego.
+	Fall back to other MX records if there is an error anywhere
+		in delivery (actually on MAIL or DATA -- RCPT is harder).
+		Suggested by John Gardiner Myers and Motonori Nakamura.
+	Revert to non-prototypes -- it turns out that our ANSI C
+		compiler is more forgiving than most others about
+		mixing prototyped extern declarations with non-prototyped
+		function definitions.
+	Fix a problem with multi-word class matching pointed out by
+		Neil Rickert.  Given:
+			CX b a.b.c
+			R$+ $=X $+	$: $1 < $2 > $3
+		the input "user@a.b.c" failed instead of being properly
+		rewritten as "user@a.<b>.c".
+	Neil also convinced me that it was correct that $~ should match
+		only one token -- the problem is that it's always possible
+		to add another token, so $~ matches far too eagerly.
+
+6.45/6.21	93/03/25
+	Implement multi-word classes (properly!).
+
+6.44/6.21	93/03/25
+	Add X-Authentication-Warning: headers to clue users into possible
+		attempts to forge mail.  This is on the authwarnings
+		privacy flag, but is the default.  Suggested by Bryan
+		Costales of ICSI.
+	Pass default units for convtime in so they can be more reasonable.
+	Allow config files to always add a new Comments: header (i.e.,
+		they will be added even if an old one already exists).
+		Suggested by Bryan Costales of ICSI.
+	Allow config files to delete an existing Return-Path: header.
+		These should only be added at final delivery.  Suggested
+		by Bryan Costales of ICSI.
+	Some debugging additions.  Suggested by Bryan Costales of ICSI.
+	Clean up logging of Family 0 addresses.  Noted by David Muir
+		Sharnoff and others.
+	Add a "dequote" map class.  This allows config files to strip
+		quotes off of addresses.  Note that this is not a builtin
+		map, just a class -- so you have to define the map
+		using the K line.
+	Fix a bug in the queueup() loop getting a locked tf where in
+		very odd cases it can fall off the bottom and core dump.
+		Of course, it was P{r Emanuelsson who found it....
+	Open a new transcript when splitting an envelope.  Problem found
+		by Allan E Johannesen of WPI.
+	Improved error output in endmailer if the mailer core dumps.
+	CONFIG: Fix typo in UUCP mailer definition.
+	CONFIG: Default several of the new options on: eight bit input,
+		privacy flags set to "authwarnings", and message warning
+		set to 4h.
+	CONFIG: Use dequote map.
+
+6.43/6.20	93/03/23
+	Fix problem with assumption of an sa_len field in a generic
+		sockaddr -- it turns out that most vendors haven't
+		picked up this (very important) fix.
+	Change compilation flags for daemon code -- select one or both
+		of NETINET or NETISO, but don't ever set DAEMON manually.
+	CONFIG: add FEATURE(mailertable) to do IDA-style mailertables.
+
+6.42/6.19	93/03/19
+	Use Postmaster as default fallback return address, not root.
+	POSIX changes for file descriptor handling.
+	Diagnose errors writing new queue file.
+	If you change the owner using an owner- alias, also change the
+		error mode to EM_MAIL so that errors don't get dropped
+		into an inappropriate directory.  Problem noted by
+		Allan E Johannesen of WPI.
+	If you are su'ed to root, send email as who you really are, not
+		as root.  From Brian Kantor of U.C. San Diego.
+	Allow warning messages to be sent after a configurable interval
+		has passed without delivery.  The message is sent only
+		once per envelope.  This changes the format of the qf
+		file to have an F line, and the format of the T option
+		to accept take the format "return/warn" (both intervals).
+	Don't force all local names to lower case -- this was left over
+		from the weird handling of case mapping on aliases.  It
+		is now driven (as expected) by the "u" mailer flag.
+		Problem noted by P{r Emanuelsson.
+	Fix problem that caused headers on returned email to be trashed;
+		they were getting freed, but are still accessible via
+		BlankEnvelope.
+	Fix problem that caused bogus ids to be created on returned
+		mail.
+	Add support for ISO and other non-INET networking.  This is by
+		no means finished yet.  This does assume a lot of other
+		system support, like a version of gethostbyname that
+		returns non-AF_INET addresses.
+	CONFIG: change default on prog mailer to keep upper case in
+		user names (i.e., in the program command line).
+	CONFIG: strip trailing dots off of hosts in uucp mailer before
+		convert to bang format.
+	CONFIG: create new "relay" mailer for $R (LOCAL_RELAY) and $H
+		(MAIL_HUB) delivery that doesn't add local domain.  Note
+		that this violates 821, but is probably "more correct"
+		for what we are trying to do.  Problem pointed out by
+		Michael Graff of Iowa State.
+
+6.41/6.18	93/03/18
+	Clean up unnecessary creates of queue ids (i.e., empty qf files)
+		when not needed, such as when starting up an SMTP
+		connection.
+	Fix problem where split envelopes aren't instantiated in the queue.
+		This is quite a serious bug.
+	Owner- aliases had problems with leading spaces causing a
+		premature delimitation.
+
+6.40/6.18	93/03/18
+	Have ending 250 (after DATA) include the id; suggested by
+		Brian Kantor of UC San Diego.
+	Add logging on envelope splitting.
+	Change queue ids to have one more letter encoding the hour of
+		the day so that during a single day there is a greater
+		likelihood of uniqueness; requested by Brian Kantor.
+
+6.39/6.18	93/03/18
+	Fix minor compile problem if LOCKF is defined.
+	Define size of tobuf in conf.h.  Observed by Toshinari Takahashi
+		of Toshiba.
+	Restore e_sender -- this is equivalent to e_from.q_paddr without
+		decorations such as angle brackets and comments.
+	OSF/1 on Alpha changes from Allan E Johannesen of WPI.
+	CONFIG: fix typo in S3 for list syntax (;: => :;).  Thanks to
+		Christopher Hoover for noting the problem.
+
+6.38/6.17	93/03/17
+	Pass envelope to disconnect to avoid another use of CurEnv, which
+		can apparently end up being null at inopportune times.
+	Log "received from" as "relay=" for consistency (suggested by
+		John Gardiner Myers).
+	Fix major bug in header handling:  if no From: line existed in
+		the header (so sendmail inserts one), and the sender is
+		an alias that has an owner, the From: line shows the
+		owner (as well as the envelope).  Fixed by early binding
+		the headers (which will change debugging output).
+	HPUX portability patches from Michael J. Corrigan of UC San Diego.
+	Some attempts to adapt better to out of open file conditions.
+	Some changes to ctladdr handling in queue files.
+
+6.37/6.17	93/03/16
+	MAJOR CHANGE:  delete e_sender and e_returnpath (why are these
+		different from e_from?) and $< macro.
+	Log correct IP address in relay= field even if the connection
+		times out.
+	Log "received from [RESPONSE]" on EF_RESPONSE messages (from
+		John Gardiner Myers).
+	Fixes to SysExMsg logging (sometimes just got "message: %s"
+		instead of "message: error message"), noted by Eric
+		Wassenaar.  Also reported by Motonori Nakamura.
+	Improvements to MX piggybacking code, from Motonori Nakamura.
+	Fix case where CurHostName points to an auto variable that has
+		been deallocated (from Motonori Nakamura).
+	Fix bug causing newlines to be included in aliases if option
+		"n" (check alias RHS) is set; bug noted by David Muir
+		Sharnoff.
+	Fix problem causing user names that should be mapped to lower
+		case to not be mapped if they are sent during a queue
+		run.  This greatly simplifies the case mapping code.
+		Problem noted by Allan E Johannesen of WPI.
+	Don't do recipient address rewriting in buildaddr.  This
+		improperly did recipient rewriting on sender addresses,
+		and just seems bogus in general -- but the change could
+		break some .cf files.
+	Pass TZ envariable to child processes for System V.
+	CONFIG: allow LOCAL_RULE_1 and LOCAL_RULE_2 if you want to
+		define those rulesets.
+	KNOWN PROBLEM:  I have seen some problems on SunOS that causes
+		the User Data Base to give errors on some addresses.  I
+		have tracked the problem back at least as far as 93.02.15
+		(version 6.22).  Running with debugging on makes it
+		go away, so I conclude that it is referencing uninitialized
+		stack data.  I haven't been able to track this down yet.
+
+6.36/6.16	93/03/08
+	Allow local mailer to specify $@host -- this lets you assign the
+		"foo" part of jgm+foo to $h for passing in to the local
+		mailer.
+	Additional debug printing in getcanonname (show query type).
+	Don't add the e_fromdomain on sender addresses -- this interacts
+		weirdly with the owner- code.
+	Improve delivery logging to not log obvious or meaningless stuff.
+	Include numeric IP address in Received: lines per RFC 1123 section
+		5.2.8.
+	Fixed a bug in checking stat() return value if restrictmailq is
+		set.  Also, check the entire group set instead of just the
+		primary group.  Both from John Gardiner Myers.
+	Don't have usrerr automatically print errno, since this is often
+		misleading.
+	Use transienterror() in makeconnection after connect() fails and
+		in openmailer after execve() fails (from Eric Wassenaar).
+		Also moved transienterror() from util.c to conf.c.
+	Clean up from= logging on response messages.
+	Undo patch allowing prescan to return a null vector -- it breaks
+		too many things.
+	Config: FEATURE(notsticky) lets you use UDB for everything coming
+		in to the machine, even if it is specifically targetted
+		to this machine.  Without it, UDB is bypassed if the user
+		name is fully qualified.
+	Config: fix another minor botch with <> (local mailer wasn't
+		mapping them properly).
+
+6.35/6.15	93/03/05
+	Fix getrealhostname to return null if sinlen <= 0 -- this can
+		occur if stdin is a pipe.
+	Avoid infinite loop in getcanonname if name server return
+		NO_DATA (for example).
+	Config: avoid having C flag qualify list syntax and error syntax.
+
+6.34/6.14	93/03/05
+	Fix logging in deliver to not pass too many parameters to Ultrix
+		versions of syslog.
+	Don't write the pid file until after the daemon has actually
+		opened and conditioned the connection.
+	Consider addresses "different" if their q_uids differ (so that
+		two users forwarding to the same program will be seen
+		as different, rather than the same).
+	Fix problem with bad parameters in main() -- they set ExitStat
+		but don't exit.
+	Fix null pointer references through RealHostName -- painfully
+		discovered by Allan E Johannesen of WPI.
+	Fix bug causing user@@localhost to core dump (yuch).
+	Config: don't put two @host.dom.ain on users in $=E in SMTP
+		mailer.  Also, catch user@ (no host) in ruleset 0.
+
+6.33/6.13	93/03/03
+	Config: add confCW_FILE as the name of the cw configuration file
+		(defaults to /etc/sendmail.cw).  From P{r Emanuelsson.
+	Allow prescan to return a pointer to an empty list -- this is
+		not an error.  Also, clean up error reporting to avoid
+		double errors (prescan reports once, then the caller
+		reports again).
+	Changes to avoid trusting T_ANY queries -- run them, but if you
+		don't get the info you expected, do T_A and T_MX queries
+		anyhow.  This also fixes an oversight where _res.options
+		bits were being ignored.
+	If PRIV_NOVRFY is set, use 252 response code instead of 502 per
+		RFC 1123 section 5.2.3.  It's not 100% clear that this
+		is correct, but it probably works better with stupid
+		mailers that do a VRFY and only check the first digit.
+
+6.32/6.12	93/03/02
+	Fix uninitialized variable "protocol" in smtp code.
+	Include <unistd.h> in sendmail.h -- move towards POSIX/ANSI.
+	Additional hooks for RFC 1427 (ESMTP SIZE extension).  This
+		includes requiring that enoughspace() know the system
+		block size, which will undoubtedly break most ports.
+	Trace flag 19 in use for srvrsmtp.c.
+	Additional logging -- notably the sending mailer name.  This
+		also changes the delivery logging to strict field=value
+		syntax.
+	Fix some problems with messages getting sent even to addresses
+		that had been marked bad -- from Eric Wassenaar.
+	More WIDE changes: accept host name inside [...] as non-MXed
+		host.  This is intended ONLY for use inside firewalled
+		environments, where the MX points at the gateway.
+	Change .cf file conventions so that mapping for <> addresses
+		don't have an @ in them (to avoid confusing the C mailer
+		flag).  Pointed out by Neil Rickert.
+	Config extensions for Sam Leffler's FlexFAX software.
+
+6.31/6.10	93/02/28
+	Fix some more bugs in alias owner code -- there were some weird
+		cases where an error in a non-aliased name would override
+		the return info in an aliased name with an owner.
+	Changes from WIDE Project, forwarded to me by Motonori Nakamura:
+		Log actual delivery host (after MX et al); from
+			yasuhiro@dcl.co.jp.
+		Log daemon startup.
+		Deliver Postmaster copies without a body.
+		Better logging of SMTP senders.
+		Send all program email as daemon even when local.
+	As requested in various forms from many people, accept -qIstring
+		to limit queue runs to jobs with queue-id matching string.
+		Similarly for -qRstring for recipients, -qSstring for
+		senders.
+	Initial hooks for ESMTP support (see RFC 1425).
+	Fixed a syntax error in the UUCP mailer specification that caused
+		core dumps on startup.
+	Check for missing A= or P= arguments in mailer definitions.
+
+6.30/6.10	93/02/27
+	Require FROZENCONFIG compilation flag to include frozen
+		configuration code.  Frozen configuration is really
+		not a very good idea any more, particularly in shared
+		library environments.
+	Do better checking of errno after opens of :include: and .forward
+		files to defer delivery on network and other transient
+		errors.  Suggestion from Craig Everhart.
+	Fix minor botch in read timeout macro processing.
+	Add FEATURE(nouucp) to config files for sites that know absolutely
+		nothing about UUCP.
+	Add built cf files to distribution tape and clarify how to build
+		them if you don't have the Berkeley make.
+	Some sizeof(long) portability changes for the Alpha, from Allan
+		E Johannesen.
+	Add "restrictmailq" privacy flag -- if set, only people in the same
+		group as your queue directory can print the queue.  If you
+		set this, be sure you also restrict access to log files....
+	Fix another bug in owner-list stuff that can cause data files to
+		be "lost".
+	Fix a bug with queue runs that cause forwards to yourself to go
+		into alias/forwarding loops.  I'm still iffy about this
+		fix.
+	Fix from Eric Wassenaar for suppression of return message code.
+
+6.29/6.9	93/02/24
+	Fix yet another problem in alias owner code -- put the wrong return
+		address on the enclosed return-to-sender letter.
+
+6.28/6.9	93/02/24
+	Fix botch in alias owner code that caused it to not operate if the
+		error was detected locally.
+
+6.27/6.9	93/02/24
+	M_LOCAL => M_LOCALMAILER to avoid conflict with Ultrix include
+		file <sys/mount.h>.
+	Miscellaneous bug fixes from Eric Wassenaar:
+		sendmail -bv -t logs the from line even though in verify
+			mode only.
+		sendmail -v can go into queue mode if shouldqueue returns
+			TRUE.
+	Add route-addr pruning per RFC 1123 section 5.3.3.  This can be
+		disabled using the "R" option.
+	Delete (always undocumented) -R flag (save original recipients);
+		there are ways to syslog(3) these now.
+	Clean up SMTP reply codes -- specify them as needed in the code,
+		instead of in conf.c -- this was needed during the NCP to
+		TCP transition, but seems silly now.  This also changes
+		parameters to message and nmessage.
+	Have mailstats read the .cf file to find the sendmail.st file and
+		get text versions of mailer names.  An initial version of
+		this code was provided by Tuominen Keijo (although the
+		comments indicate the good bits were written by "E.V.").
+	Add yet more System V compatibility hacks.
+	Fix bug in VRFY code (assumes everything must be a local user).
+	Allow specification of any of the hard-wired pathnames in the
+		Makefile.
+	Delete concept of "trusted users" -- this really didn't provide
+		any security anyway, and caused some problems.
+	Delete last vestige of support for the word "at" as an equivalent
+		to the character "@".
+	Propagate owner-foo alias information into the envelope sender.
+		Based on code from John Gardiner Myers.  This is a major
+		semantic change -- beware!
+	Allow $@ on LHS to indicate "match zero" -- this is used to match
+		the null expression.
+
+6.26/6.8	93/02/21
+	Don't "lose" queue runs.  Very important fix from (who else?)
+		Eric Wassenaar.
+	Completely reset state on RSET command -- from Eric Wassenaar.
+	Send error messages and return receipts using an envelope sender
+		of <> regardless of the setting of $n.  Rewriting rules
+		can undo this if they feel the necessity, as might be
+		needed for networks that don't understand the syntax.
+		This is permitted by RFC 821 section 3.6 and required by
+		RFC 1123 section 5.3.3.  THIS REQUIRES VERSION 4 CONFIG
+		FILES because the rulesets must be able to parse <>
+		properly.
+	Don't ever send error messages to "<>" -- they will get sent to
+		the local postmaster or dumped in /usr/tmp/dead.letter
+		instead.  Per RFC 1123 section 5.3.3.
+	Explicitly check for email to yourself as a dotted quad.  You
+		have to call $[ [ ... ] $] to get this.
+	Up the message timeout to five days per RFC 1123 section 5.3.1.1.
+	Make all read timeouts individually configurable, as strongly
+		recommended by RFC 1123 section 5.3.2.
+	Use f_bavail (blocks available to regular users) instead of f_bfree
+		(blocks available to superuser) in free block checks.
+	Change $d macro to be the current time, not the origination time,
+		since this is consistent with how it is used now.
+	Generalization of enoughspace from Eric Wassenaar covering
+		SGI, Apollo, HPUX, Ultrix, and SunOS.
+	Ignore process group signals -- some front ends can do this if
+		you kill a window too quickly.  From Eric Wassenaar.
+	Change umask to 022.
+
+6.25/6.8	93/02/20
+	Close all cached connections before calling mailers and after
+		forking for delivery (caused double closes which resulted
+		in false errors).
+	Add FEATURE(redirect) in config files -- this allows you to alias
+		old addresses to a pointer to the new address that will
+		give a 551 error message, but not deliver the mail.
+	Some code changes to make the 551 errors look pretty.
+	Names of M4 program paths in config files have changed -- they
+		are all XXX_MAILER_PATH now, to match XXX_MAILER_FLAGS.
+	Fix a bug in the QSELFREF code having to do with empty .forward
+		files, reported by Eric Wassenaar.
+	Add option "p" (privacy flags); this allows you to tune how
+		picky the SMTP server will be.  This also adds the
+		confPRIVACY_FLAGS M4 macro in the config files.
+	Add option "b" (minimum blocks free).  If there are fewer than
+		this number of blocks free on the filesystem containing
+		the queue directory, the SMTP MAIL command will return
+		a 452 response and ask you to try again later.  This
+		also adds the confMIN_FREE_BLOCKS M4 macro in the config
+		files.
+	Made VRFY just verify (doesn't expand aliases and .forward files);
+		EXPN does full expansion.  RCPT in queue-only mode also
+		doesn't chase aliases and .forward.
+
+6.24/6.7	93/02/19
+	Increase the number of domain search entries in domain.c to allow
+		for the extra "" entry indicating the root domain.
+		Reported by Motonori Nakamura of Kyoto U.
+	Add a "SMART_HOST" in the configs for UUCP-connected sites that
+		want to forward all mail with extra "@"s to that site.
+		Also allows SMART_HOST, LOCAL_RELAY, and MAIL_HUB to
+		be specified as ``mailer:hostname'' to use an alternate
+		mailer.
+	Clarified and updated some wording in the Operations Guide.
+	Add the "c" mailer flag -- this suppresses all comment parts of
+		addresses (requested by John Curran of NEARnet).
+	Have -v print prompts in -bt mode even if stdin is not a terminal
+		(default behaviour is to be silent if not reading from
+		a terminal).  Suggested by Bryan Costales, ICSI.
+	Move the metacharacters from C0 space (\001-\037) into C1 space
+		(\201-\237).  This also fixes a bunch of potential bugs
+		with G1 characters (\240-\276) in headers relating to
+		negative numbers passed to isspace() et al.
+	Add YP_LAST_MODIFIED and YP_MASTER_NAME to DBM version of alias
+		database if YPCOMPAT is #defined.  Enhancement from
+		Takahiro Kanbe of Fuji Xerox Information Systems Co., Ltd.
+	Add "list" Precedence (-30); this can be used with old sendmails
+		which will map to precedence 0 (which will return error
+		messages).  Suggested by Stephen R. van den Berg.
+	Many bug fixes from Eric Wassenaar of the National Institute for
+			Nuclear and High-Energy Physics, Amsterdam:
+		Clear timeouts properly on open failures in include().
+		Don't dereference through NULL if no home directory found.
+		Re-establish SIGCHLD signal on System 5 in reapchild().
+		Avoid NULL pointer reference on -pFOO flag.
+		Properly handle backslash escapes in comments.
+		Correctly check reply status on SMTP NOOP command.
+		Properly save SMTP error message if peer gives
+			"Service Shutting Down" message.
+		Avoid writing to the transcript if it couldn't be opened.
+		Signal errors in SMTP children to parent properly.
+	Handle self references in a list more globally (include a
+		QSELFREF bit in the address flags).  This enhancement
+		was suggested by Eric Wassenaar.
+	Use initgroups() in hpux, even though it's System-V based.  The
+		HASINITGROUPS compile flag can set this on other systems.
+		This HPUX behaviour was pointed out by Eric Wassenaar.
+
+6.23/6.6	93/02/16
+	Clean up handling of LogLevel to make it easier to figure out
+		what's on what level.
+	Change log levels to have some consistency:
+		1    serious system failures, security problems
+		2    lost communications, protocol failures
+		3    other serious failures
+		4    minor errors
+		5    message collection
+		6    vrfy logging, creation of return-to-sender
+		7    delivery failures
+		8    delivery successes
+		9    delivery tempfails (queue ups)
+		10   database expansion
+		>64  debugging
+	Allow IDA-style separated processing on S= and R= in Mailer
+		definition lines.  Note that rulesets 1 and 2 are
+		still used for both addresses as before.  Bruce Lilly
+		gave a convincing argument that RFC976 insists on
+		this behaviour.
+	Added some time zones to arpatounix -- they may not be in the
+		standards, but they are in use.  However, I may delete
+		arpatounix entirely -- there appears to be no reason
+		for it to exist.
+	Change to UUCP mailer (in cf directory) to try to do a saner job.
+		I'm still not certain about this mailer in general.
+
+6.22/6.5	93/02/15
+	Fix bug that prevents saving letters in ~/dead.letter.
+	Don't add angle brackets in VRFY command if angle brackets already
+		exist in the address.
+	Fix bogus error message in udbexpand.
+	Null terminate host buffers in buildaddr (broken in 6.21) --
+		IMPORTANT FIX!!
+
+6.21/6.5	93/02/15
+	Fix another incorrect error message in alias.c, found by Azuma
+		Okamoto.
+	Fix a couple of problems in the more-configurable config files,
+		found by Tom Ivar Helbekkmo.
+	Fix problem with quoted :include: entries.
+	Don't duplicate the filename on verbose printing of .forward and
+		:include: contents.
+	Extend size of prescan buffer (to allow bigger addresses).  Also,
+		detect some buffer overflows.
+	Log user SMTP protocol errors (log level 4).
+
+6.20/6.4	93/02/14
+	Fix another problem in the MCI state machine caused when there
+		were errors generated from the other end to commands
+		other than RCPT.
+
+6.19/6.4	93/02/14
+	Include load average support for DEC Alpha running OSF/1.
+	Fix multiple-response problem with errors in MAIL From: line.
+	Fix SMTP reply codes for invalid address syntaxes (give 501;
+		never give multiple error messages for a single message).
+	Fix problem where a cached connection timeout rejects all
+		later connects to that host.
+	Fix incorrect error message if alias.c is compiled with DBM only.
+	Additional changes to fix nested conditionals (from Bruce Lilly).
+	Recover more gracefully from operating system failures, particularly
+		NULL returns from openmailer (from Noritoshi Demizu,
+		OMRON Corporation).
+	Log forward, alias, and userdb expand operations on log level 10;
+		concept suggested by P{r (Pell) Emanuelsson.
+	Changes for HPUX 8.07 compatibility.
+
+6.18/6.4	93/02/12
+	Allow any config option to be set using an M4 define.
+	Change UNAME compile flag to HASUNAME for IDA compatibility
+		(besides, it's a better name).
+	Note in README that on SunOS it must be linked -Bstatic.
+	Fairly major change in domain.c to handle wildcard MX records
+		more rationally.  NOTE: the "w" option (no wildcard MX
+		records match local domain) has been eliminated.
+	Fix some unset variable references pointed out by Bruce Lilly.
+	Fix host name in process titles when using cached connection.
+
+6.17/6.3	93/01/28
+	Fix System 5 compatibility changes to be compatible with the rest
+		of the world.
+
+6.16/6.3	93/01/28
+	Experimental fix for problem handling errors in the SMTP
+		protocol in conjunction with connection caching.
+	System 5 compatibility changes.
+
+6.15/6.3	93/01/26
+	Fix a bug that causes local mail delivered using -odq to be
+		eliminated as a duplicate (because it matched the
+		ctladdr, now passed in as a C line).  These changes
+		are pretty tricky......
+
+6.14/6.3	93/01/25
+	Add debugging for some MCI errors.
+
+6.13/6.3	93/01/22
+	Fix -e compatibility flag to take a value.
+	Fix a couple of minor compilation warnings on Sun cc.
+	Improve error messages in a few cases to be more self-explanatory.
+
+6.12/6.3	93/01/21
+	Fix yet-another problem with environment handling, pointed out
+		by Yoshitaka Tokugawa and Tom Ivar Helbekkmo.
+	Some heuristics to try to limit resource exhaustion problems
+		if a downstream host has been down for a long time.
+	Fix problem with incorrect host name being logged in "Connection
+		timed out" messages (from Tom Ivar Helbekkmo).
+	Fix some ANSI C problems (from Takahiro Kanbe).
+	Properly log message sender on returned mail during queue run.
+	Count number of recipients properly.
+	Fix a problem in yp map code.
+	Diagnose "message timed out" (from Motonori Nakamura).
+
+6.11/6.3	93/01/20
+	Fix problem with address delimitor inside quotes.
+	Define $k and $=k to be the UUCP name (from the uname call)
+		based on code from Bruce Lilly.
+
+6.10/6.2	93/01/18
+	Implement arpatounix (largely code from Bruce Lilly).
+	Log more info (suggested by John Myers).
+	Allow nested $?...$|...$. (inspired by code from Bruce Lilly of
+		Sony US).
+	POSIX compatibility (noted by Keith Bostic).
+	Handle SMTP MAIL command errors properly (urged by several people,
+		notably John Myers of CMU).
+	Do early diagnosis of .cf errors (notably referencing a RHS
+		substitution that isn't on the LHS).
+	Adjust checkpointing to better handle batched recipients, suggested
+		by John Myers.
+	Fix miscellaneous bugs.
+	(config files:)  Implement MAIL_HUB for all local mail (to handle
+		NFS-mounted directories) as urged by Tom Ivar Helbekkmo
+		of the Norwegian School of Economics.
+
+6.9/6.1 	93/01/13
+	Environment handling simplification/bug fix -- child processes
+		get a minimal, fixed environment.  This avoids different
+		behaviour in queue runs.
+	Handle commas inside comments properly.
+	Properly limit large messages submitted in -obq mode.
+
+6.8/6.1		93/01/10
+	Check mtime of thaw file against .cf and sendmail binary, based on
+		code from John Myers.
+
+6.7/6.1		93/01/10
+	MX piggybacking, based on code from John Myers@CMU.
+	Allow checkcompat to return -1 to mean tempfail.
+	Bug fix in m_mno computation.
+
+6.6/6.1		93/01/09
+	Tuning of queueing functions as recommended by John Gardiner Myers.
+	Return mail headers (no body) on messages with negative precedence.
+	Minor other bug fixes.
+
+6.5/6.1		93/01/03
+	Fix botch causing queued headers to have ?XX? prefixes.
+
+6.4/6.1		93/01/02
+	Changes to recognize special mailer types (e.g., file) early.
+
+6.3/6.1		93/01/01
+	Pass timeouts to sfgets.
+	Check for control characters in addresses.
+	Fixed deferred error reporting.
+	Report duplicate aliases.
+	Handle mixed case recursive aliases.
+	Misc bug fixes.
+
+6.2/6.1		92/12/30
+	Put return-receipt-to on a conf.c flag (but don't set it).
+	Fix minor syslog problem.
diff --git a/cf/README b/cf/README
new file mode 100644
index 0000000..184a353
--- /dev/null
+++ b/cf/README
@@ -0,0 +1,1857 @@
+
+
+		NEW SENDMAIL CONFIGURATION FILES
+
+		Eric Allman <eric@CS.Berkeley.EDU>
+
+		@(#)README	8.124 (Berkeley) 9/23/97
+
+
+This document describes the sendmail configuration files being used
+at Berkeley.  These use features in the new (R8) sendmail; they will
+not work on other versions.
+
+These configuration files are probably not as general as previous
+versions, and don't handle as many of the weird cases automagically.
+I was able to simplify them for two reasons.  First, the network
+has become more consistent -- for example, at this point, everyone
+on the internet is supposed to be running a name server, so hacks to
+handle NIC-registered hosts can go away.  Second, I assumed that a
+subdomain would be running SMTP internally -- UUCP is presumed to be
+a long-haul protocol.  I realize that this is not universal, but it
+does describe the vast majority of sites with which I am familiar,
+including those outside the US.
+
+Of course, the downside of this is that if you do live in a weird
+world, things are going to get weirder for you.  I'm sorry about that,
+but at the time we at Berkeley had a problem, and it seemed like the
+right thing to do.
+
+This package requires a post-V7 version of m4; if you are running the
+4.2bsd, SysV.2, or 7th Edition version, I suggest finding a friend with
+a newer version.  You can m4-expand on their system, then run locally.
+SunOS's /usr/5bin/m4 or BSD-Net/2's m4 both work.  GNU m4 version 1.1
+or later also works.  Unfortunately, I'm told that the M4 on BSDI 1.0
+doesn't work -- you'll have to use a Net/2 or GNU version.  GNU m4 is
+available from ftp://prep.ai.mit.edu/pub/gnu/m4-1.4.tar.gz (check for
+the latest version).  EXCEPTIONS: DEC's m4 on Digital UNIX 4.x is broken
+(3.x is fine).  Use GNU m4 on this platform.
+
+IF YOU DON'T HAVE A BERKELEY MAKE, don't despair!  Just run
+"m4 ../m4/cf.m4 foo.mc > foo.cf" -- that should be all you need.
+There is also a fairly crude (but functional) Makefile.dist that works
+on the old version of make.
+
+To get started, you may want to look at tcpproto.mc (for TCP-only
+sites), uucpproto.mc (for UUCP-only sites), and clientproto.mc (for
+clusters of clients using a single mail host).  Others are versions
+that we use at Berkeley, although not all are in current use.  For
+example, ucbarpa has gone away, but I've left ucbarpa.mc in because
+it demonstrates some interesting techniques.
+
+I'm not pretending that this README describes everything that these
+configuration files can do; clever people can probably tweak them
+to great effect.  But it should get you started.
+
+*******************************************************************
+***  BE SURE YOU CUSTOMIZE THESE FILES!  They have some		***
+***  Berkeley-specific assumptions built in, such as the name	***
+***  of our UUCP-relay.  You'll want to create your own domain	***
+***  description, and use that in place of domain/Berkeley.m4.	***
+*******************************************************************
+
+
++--------------------------+
+| INTRODUCTION AND EXAMPLE |
++--------------------------+
+
+Configuration files are contained in the subdirectory "cf", with a
+suffix ".mc".  They must be run through "m4" to produce a ".cf" file.
+You must pre-load "cf.m4":
+
+	m4 ${CFDIR}/m4/cf.m4 config.mc > config.cf
+
+where ${CFDIR} is the root of the cf directory and config.mc is the
+name of your configuration file.  If you are running a version of M4
+that understands the __file__ builtin (versions of GNU m4 >= 0.75 do
+this, but the versions distributed with 4.4BSD and derivatives do not)
+or the -I flag (ditto), then ${CFDIR} can be in an arbitrary directory.
+For "traditional" versions, ${CFDIR} ***MUST*** be "..", or you MUST
+use -D_CF_DIR_=/path/to/cf/dir/ -- note the trailing slash!  For example:
+
+	m4 -D_CF_DIR_=${CFDIR}/ ${CFDIR}/m4/cf.m4 config.mc > config.cf
+
+Let's examine a typical .mc file:
+
+	divert(-1)
+	#
+	# Copyright (c) 1983 Eric P. Allman
+	# Copyright (c) 1988, 1993
+	#	The Regents of the University of California.  All rights reserved.
+	#
+	# Redistribution and use in source and binary forms, with or without
+	# modification, are permitted provided that the following conditions
+	# are met:
+	# 1. Redistributions of source code must retain the above copyright
+	#    notice, this list of conditions and the following disclaimer.
+	# 2. Redistributions in binary form must reproduce the above copyright
+	#    notice, this list of conditions and the following disclaimer in
+	#    the documentation and/or other materials provided with the
+	#    distribution.
+	# 3. All advertising materials mentioning features or use of this
+	#    software #    must display the following acknowledgement:
+	#	This product includes software developed by the University of
+	#	California, Berkeley and its contributors.
+	# 4. Neither the name of the University nor the names of its
+	#    contributors may be used to endorse or promote products derived
+	#    from this software without specific prior written permission.
+	#
+	# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS''
+	# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+	# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+	# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
+	# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+	# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+	# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+	# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+	# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+	# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+	# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+	#
+
+	#
+	#  This is a Berkeley-specific configuration file for HP-UX 9.x.
+	#  It applies only to the Computer Science Division at Berkeley,
+	#  and should not be used elsewhere.   It is provided on the sendmail
+	#  distribution as a sample only.  To create your own configuration
+	#  file, create an appropriate domain file in ../domain, change the
+	#  `DOMAIN' macro below to reference that file, and copy the result
+	#  to a name of your own choosing.
+	#
+	divert(0)
+
+The divert(-1) will delete the crud in the resulting output file.
+The copyright notice can be replaced by whatever your lawyers require;
+our lawyers require the one that I've included in my files.  A copyleft
+is a copyright by another name.  The divert(0) restores regular output.
+
+	VERSIONID(`<SCCS or RCS version id>')
+
+VERSIONID is a macro that stuffs the version information into the
+resulting file.  We use SCCS; you could use RCS, something else, or
+omit it completely.  This is not the same as the version id included
+in SMTP greeting messages -- this is defined in m4/version.m4.
+
+	OSTYPE(hpux9)dnl
+
+You must specify an OSTYPE to properly configure things such as the
+pathname of the help and status files, the flags needed for the local
+mailer, and other important things.  If you omit it, you will get an
+error when you try to build the configuration.  Look at the ostype
+directory for the list of known operating system types.
+
+	DOMAIN(CS.Berkeley.EDU)dnl
+
+This example is specific to the Computer Science Division at Berkeley.
+You can use "DOMAIN(generic)" to get a sufficiently bland definition
+that may well work for you, or you can create a customized domain
+definition appropriate for your environment.
+
+	MAILER(local)
+	MAILER(smtp)
+
+These describe the mailers used at the default CS site site.  The
+local mailer is always included automatically.  Beware: MAILER
+declarations should always be at the end of the configuration file,
+and MAILER(smtp) should always precede MAILER(uucp).  The general
+rules are that the order should be:
+
+	VERSIONID
+	OSTYPE
+	DOMAIN
+	FEATURE
+	local macro definitions
+	MAILER
+	LOCAL_RULESET_*
+
+
++----------------------------+
+| A BRIEF INTRODUCTION TO M4 |
++----------------------------+
+
+Sendmail uses the M4 macro processor to ``compile'' the configuration
+files.  The most important thing to know is that M4 is stream-based,
+that is, it doesn't understand about lines.  For this reason, in some
+places you may see the word ``dnl'', which standards for ``delete
+through newline''; essentially, it deletes all characters starting
+at the ``dnl'' up to and including the next newline character.  In
+most cases sendmail uses this only to avoid lots of unnecessary
+blank lines in the output.
+
+Other important directives are define(A, B) which defines the macro
+``A'' to have value ``B''.  Macros are expanded as they are read, so
+one normally quotes both values to prevent expansion.  For example,
+
+	define(`SMART_HOST', `smart.foo.com')
+
+One word of warning:  M4 macros are expanded even in lines that appear
+to be comments.  For example, if you have
+
+	# See FEATURE(foo) above
+
+it will not do what you expect, because the FEATURE(foo) will be
+expanded.  This also applies to
+
+	# And then define the $X macro to be the return address
+
+because ``define'' is an M4 keyword.  If you want to use them, surround
+them with directed quotes, `like this'.
+
+
++--------+
+| OSTYPE |
++--------+
+
+You MUST define an operating system environment, or the configuration
+file build will puke.  There are several environments available; look
+at the "ostype" directory for the current list.  This macro changes
+things like the location of the alias file and queue directory.  Some
+of these files are identical to one another.
+
+It is IMPERATIVE that the OSTYPE occur before any MAILER definitions.
+In general, the OSTYPE macro should go immediately after any version
+information, and MAILER definitions should always go last.
+
+Operating system definitions are usually easy to write.  They may define
+the following variables (everything defaults, so an ostype file may be
+empty).  Unfortunately, the list of configuration-supported systems is
+not as broad as the list of source-supported systems, since many of
+the source contributors do not include corresponding ostype files.
+
+ALIAS_FILE		[/etc/aliases] The location of the text version
+			of the alias file(s).  It can be a comma-separated
+			list of names (but be sure you quote values with
+			commas in them -- for example, use
+				define(`ALIAS_FILE', `a,b')
+			to get "a" and "b" both listed as alias files;
+			otherwise the define() primitive only sees "a").
+HELP_FILE		[/usr/lib/sendmail.hf] The name of the file
+			containing information printed in response to
+			the SMTP HELP command.
+QUEUE_DIR		[/var/spool/mqueue] The directory containing
+			queue files.
+STATUS_FILE		[/etc/sendmail.st] The file containing status
+			information.
+LOCAL_MAILER_PATH	[/bin/mail] The program used to deliver local mail.
+LOCAL_MAILER_FLAGS	[rmn] The flags used by the local mailer.  The
+			flags lsDFM are always included.
+LOCAL_MAILER_ARGS	[mail -d $u] The arguments passed to deliver local
+			mail.
+LOCAL_MAILER_MAX	[undefined] If defined, the maximum size of local
+			mail that you are willing to accept.
+LOCAL_MAILER_CHARSET	[undefined] If defined, messages containing 8-bit data
+			that ARRIVE from an address that resolves to the
+			local mailer and which are converted to MIME will be
+			labelled with this character set.
+LOCAL_SHELL_PATH	[/bin/sh] The shell used to deliver piped email.
+LOCAL_SHELL_FLAGS	[eu] The flags used by the shell mailer.  The
+			flags lsDFM are always included.
+LOCAL_SHELL_ARGS	[sh -c $u] The arguments passed to deliver "prog"
+			mail.
+LOCAL_SHELL_DIR		[$z:/] The directory search path in which the
+			shell should run.
+USENET_MAILER_PATH	[/usr/lib/news/inews] The name of the program
+			used to submit news.
+USENET_MAILER_FLAGS	[rlsDFMmn] The mailer flags for the usenet mailer.
+USENET_MAILER_ARGS	[-m -h -n] The command line arguments for the
+			usenet mailer.
+USENET_MAILER_MAX	[100000] The maximum size of messages that will
+			be accepted by the usenet mailer.
+SMTP_MAILER_FLAGS	[undefined] Flags added to SMTP mailer.  Default
+			flags are `mDFMUX' for all SMTP-based mailers; the
+			"esmtp" mailer adds `a' and "smtp8" adds `8'.
+SMTP_MAILER_MAX		[undefined] The maximum size of messages that will
+			be transported using the smtp, smtp8, or esmtp
+			mailers.
+SMTP_MAILER_ARGS	[IPC $h] The arguments passed to the smtp mailer.
+			About the only reason you would want to change this
+			would be to change the default port.
+ESMTP_MAILER_ARGS	[IPC $h] The arguments passed to the esmtp mailer.
+SMTP8_MAILER_ARGS	[IPC $h] The arguments passed to the smtp8 mailer.
+RELAY_MAILER_ARGS	[IPC $h] The arguments passed to the relay mailer.
+SMTP_MAILER_CHARSET	[undefined] If defined, messages containing 8-bit data
+			that ARRIVE from an address that resolves to one of
+			the SMTP mailers and which are converted to MIME will
+			be labelled with this character set.
+UUCP_MAILER_PATH	[/usr/bin/uux] The program used to send UUCP mail.
+UUCP_MAILER_FLAGS	[undefined] Flags added to UUCP mailer.  Default
+			flags are `DFMhuU' (and `m' for uucp-new mailer,
+			minus `U' for uucp-dom mailer).
+UUCP_MAILER_ARGS	[uux - -r -z -a$g -gC $h!rmail ($u)] The arguments
+			passed to the UUCP mailer.
+UUCP_MAILER_MAX		[100000] The maximum size message accepted for
+			transmission by the UUCP mailers.
+UUCP_MAILER_CHARSET	[undefined] If defined, messages containing 8-bit data
+			that ARRIVE from an address that resolves to one of
+			the UUCP mailers and which are converted to MIME will
+			be labelled with this character set.
+FAX_MAILER_PATH		[/usr/local/lib/fax/mailfax] The program used to
+			submit FAX messages.
+FAX_MAILER_ARGS		[mailfax $u $h $f] The arguments passed to the FAX
+			mailer.
+FAX_MAILER_MAX		[100000] The maximum size message accepted for
+			transmission by FAX.
+POP_MAILER_PATH		[/usr/lib/mh/spop] The pathname of the POP mailer.
+POP_MAILER_FLAGS	[Penu] Flags added to POP mailer.  Flags "lsDFM"
+			are always added.
+POP_MAILER_ARGS		[pop $u] The arguments passed to the POP mailer.
+PROCMAIL_MAILER_PATH	[/usr/local/bin/procmail] The path to the procmail
+			program.  This is also used by FEATURE(local_procmail).
+PROCMAIL_MAILER_FLAGS	[SPhnu9] Flags added to Procmail mailer.  Flags
+			``DFM'' are always set.  This is NOT used by
+			FEATURE(local_procmail); tweak LOCAL_MAILER_FLAGS
+			instead.
+PROCMAIL_MAILER_ARGS	[procmail -Y -m $h $f $u] The arguments passed to
+			the Procmail mailer.  This is NOT used by
+			FEATURE(local_procmail); tweak LOCAL_MAILER_ARGS
+			instead.
+PROCMAIL_MAILER_MAX	[undefined] If set, the maximum size message that
+			will be accepted by the procmail mailer.
+MAIL11_MAILER_PATH	[/usr/etc/mail11] The path to the mail11 mailer.
+MAIL11_MAILER_FLAGS	[nsFx] Flags for the mail11 mailer.
+MAIL11_MAILER_ARGS	[mail11 $g $x $h $u] Arguments passed to the mail11
+			mailer.
+PH_MAILER_PATH		[/usr/local/etc/phquery] The path to the phquery
+			program.
+PH_MAILER_FLAGS		[ehmu] Flags for the phquery mailer.
+PH_MAILER_ARGS		[phquery -- $u] -- arguments to the phquery mailer.
+CYRUS_MAILER_FLAGS	[A5@] The flags used by the cyrus mailer.  The
+			flags lsDFMnP are always included.
+CYRUS_MAILER_PATH	[/usr/cyrus/bin/deliver] The progam used to deliver
+			cyrus mail.
+CYRUS_MAILER_ARGS	[deliver -e -m $h -- $u] The arguments passed
+			to deliver cyrus mail.
+CYRUS_MAILER_MAX	[undefined] If set, the maximum size message that
+			will be accepted by the cyrus mailer.
+CYRUS_MAILER_USER	[cyrus:mail] The user and group to become when
+			running the cyrus mailer.
+CYRUS_BB_MAILER_FLAGS	[undefined] The flags used by the cyrusbb
+			mailer. The flags lsDFMnP are always included.
+CYRUS_BB_MAILER_ARGS	[deliver -e -m $u] The arguments passed
+			to deliver cyrusbb mail.
+
+
+
++---------+
+| DOMAINS |
++---------+
+
+You will probably want to collect domain-dependent defines into one
+file, referenced by the DOMAIN macro.  For example, our Berkeley
+domain file includes definitions for several internal distinguished
+hosts:
+
+UUCP_RELAY	The host that will accept UUCP-addressed email.
+		If not defined, all UUCP sites must be directly
+		connected.
+BITNET_RELAY	The host that will accept BITNET-addressed email.
+		If not defined, the .BITNET pseudo-domain won't work.
+DECNET_RELAY	The host that will accept DECNET-addressed email.
+		If not defined, the .DECNET pseudo-domain and addresses
+		of the form node::user will not work.
+FAX_RELAY	The host that will accept mail to the .FAX pseudo-domain.
+		The "fax" mailer overrides this value.
+LOCAL_RELAY	DEPRECATED.  The site that will handle unqualified
+		names -- that is, names with out an @domain extension.
+		If not set, they are assumed to belong on this machine.
+		This allows you to have a central site to store a
+		company- or department-wide alias database.  This
+		only works at small sites, and only with some user
+		agents.
+LUSER_RELAY	The site that will handle lusers -- that is, apparently
+		local names that aren't local accounts or aliases.
+
+Any of these can be either ``mailer:hostname'' (in which case the
+mailer is the internal mailer name, such as ``uucp-new'' and the hostname
+is the name of the host as appropriate for that mailer) or just a
+``hostname'', in which case a default mailer type (usually ``relay'',
+a variant on SMTP) is used.  WARNING: if you have a wildcard MX
+record matching your domain, you probably want to define these to
+have a trailing dot so that you won't get the mail diverted back
+to yourself.
+
+The domain file can also be used to define a domain name, if needed
+(using "DD<domain>") and set certain site-wide features.  If all hosts
+at your site masquerade behind one email name, you could also use
+MASQUERADE_AS here.
+
+You do not have to define a domain -- in particular, if you are a
+single machine sitting off somewhere, it is probably more work than
+it's worth.  This is just a mechanism for combining "domain dependent
+knowledge" into one place.
+
++---------+
+| MAILERS |
++---------+
+
+There are fewer mailers supported in this version than the previous
+version, owing mostly to a simpler world.  As a general rule, put the
+MAILER definitions last in your .mc file, and always put MAILER(smtp)
+before MAILER(uucp) -- several features and definitions will modify
+the definition of mailers, and the smtp mailer modifies the UUCP
+mailer.
+
+local		The local and prog mailers.  You will almost always
+		need these; the only exception is if you relay ALL
+		your mail to another site.  This mailer is included
+		automatically.
+
+smtp		The Simple Mail Transport Protocol mailer.  This does
+		not hide hosts behind a gateway or another other
+		such hack; it assumes a world where everyone is
+		running the name server.  This file actually defines
+		four mailers: "smtp" for regular (old-style) SMTP to
+		other servers, "esmtp" for extended SMTP to other
+		servers, "smtp8" to do SMTP to other servers without
+		converting 8-bit data to MIME (essentially, this is
+		your statement that you know the other end is 8-bit
+		clean even if it doesn't say so), and "relay" for
+		transmission to our RELAY_HOST, LUSER_RELAY, or
+		MAILER_HUB.
+
+uucp		The Unix-to-Unix Copy Program mailer.  Actually, this
+		defines two mailers, "uucp-old" (a.k.a. "uucp") and
+		"uucp-new" (a.k.a. "suucp").  The latter is for when you
+		know that the UUCP mailer at the other end can handle
+		multiple recipients in one transfer.  If the smtp mailer
+		is also included in your configuration, two other mailers
+		("uucp-dom" and "uucp-uudom") are also defined [warning:
+		you MUST specify MAILER(smtp) before MAILER(uucp)].  When you
+		include the uucp mailer, sendmail looks for all names in
+		the $=U class and sends them to the uucp-old mailer; all
+		names in the $=Y class are sent to uucp-new; and all
+		names in the $=Z class are sent to uucp-uudom.  Note that
+		this is a function of what version of rmail runs on
+		the receiving end, and hence may be out of your control.
+		See the section below describing UUCP mailers in more
+		detail.
+
+usenet		Usenet (network news) delivery.  If this is specified,
+		an extra rule is added to ruleset 0 that forwards all
+		local email for users named ``group.usenet'' to the
+		``inews'' program.  Note that this works for all groups,
+		and may be considered a security problem.
+
+fax		Facsimile transmission.  This is experimental and based
+		on Sam Leffler's HylaFAX software.  For more information,
+		see http://www.vix.com/hylafax/.
+
+pop		Post Office Protocol.
+
+procmail	An interface to procmail (does not come with sendmail).
+		This is designed to be used in mailertables.  For example,
+		a common question is "how do I forward all mail for a given
+		domain to a single person?".  If you have this mailer
+		defined, you could set up a mailertable reading:
+
+			host.com	procmail:/etc/procmailrcs/host.com
+
+		with the file /etc/procmailrcs/host.com reading:
+
+			:0	# forward mail for host.com
+			! -oi -f $1 person@other.host
+
+		This would arrange for (anything)@host.com to be sent
+		to person@other.host.  Within the procmail script, $1 is
+		the name of the sender and $2 is the name of the recipient.
+		If you use this with FEATURE(local_procmail), the FEATURE
+		should be listed first.
+
+mail11		The DECnet mail11 mailer, useful only if you have the mail11
+		program from gatekeeper.dec.com:/pub/DEC/gwtools (and
+		DECnet, of course).  This is for Phase IV DECnet support;
+		if you have Phase V at your site you may have additional
+		problems.
+
+phquery		The phquery program.  This is somewhat counterintuitively
+		referenced as the "ph" mailer internally.  It can be used
+		to do CCSO name server lookups.  The phquery program, which
+		this mailer uses, is distributed with the ph client.
+
+cyrus		The cyrus and cyrusbb mailers.  The cyrus mailer delivers to
+		a local cyrus user.  this mailer can make use of the
+		"user+detail@local.host" syntax; it will deliver the mail to
+		the user's "detail" mailbox if the mailbox's ACL permits.
+		The cyrusbb mailer delivers to a system-wide cyrus mailbox
+		if the mailbox's ACL permits.
+
+
+The local mailer accepts addresses of the form "user+detail", where
+the "+detail" is not used for mailbox matching but is available
+to certain local mail programs (in particular, see FEATURE(local_procmail)).
+For example, "eric", "eric+sendmail", and "eric+sww" all indicate
+the same user, but additional arguments <null>, "sendmail", and "sww"
+may be provided for use in sorting mail.
+
+
++----------+
+| FEATURES |
++----------+
+
+Special features can be requested using the "FEATURE" macro.  For
+example, the .mc line:
+
+	FEATURE(use_cw_file)
+
+tells sendmail that you want to have it read an /etc/sendmail.cw
+file to get values for class $=w.  The FEATURE may contain a single
+optional parameter -- for example:
+
+	FEATURE(mailertable, dbm /usr/lib/mailertable)
+
+Available features are:
+
+use_cw_file	Read the file /etc/sendmail.cw file to get alternate
+		names for this host.  This might be used if you were
+		on a host that MXed for a dynamic set of other
+		hosts.  If the set is static, just including the line
+		"Cw<name1> <name2> ..." is probably superior.
+		The actual filename can be overridden by redefining
+		confCW_FILE.
+
+use_ct_file	Read the file /etc/sendmail.ct file to get the names
+		of users that will be ``trusted'', that is, able to
+		set their envelope from address using -f without
+		generating a warning message.
+		The actual filename can be overridden by redefining
+		confCT_FILE.
+
+redirect	Reject all mail addressed to "address.REDIRECT" with
+		a ``551 User not local; please try <address>'' message.
+		If this is set, you can alias people who have left
+		to their new address with ".REDIRECT" appended.
+
+nouucp		Don't do anything special with UUCP addresses at all.
+
+nocanonify	Don't pass addresses to $[ ... $] for canonification.
+		This would generally only be used by sites that only
+		act as mail gateways or which have user agents that do
+		full canonification themselves.  You may also want to
+		use "define(`confBIND_OPTS',`-DNSRCH -DEFNAMES')" to
+		turn off the usual resolver options that do a similar
+		thing.
+
+stickyhost	If set, email sent to "user@local.host" are marked
+		as "sticky" -- that is, the local addresses aren't
+		matched against UDB and don't go through ruleset 5.
+		This is used if you want a set up where "user" is
+		not necessarily the same as "user@local.host", e.g.,
+		to make a distinct domain-wide namespace.  Prior to
+		8.7 this was the default, and notsticky was used to
+		turn this off.
+
+mailertable	Include a "mailer table" which can be used to override
+		routing for particular domains.  The argument of the
+		FEATURE may be the key definition.  If none is specified,
+		the definition used is:
+			hash -o /etc/mailertable
+		Keys in this database are fully qualified domain names
+		or partial domains preceded by a dot -- for example,
+		"vangogh.CS.Berkeley.EDU" or ".CS.Berkeley.EDU".
+		Values must be of the form:
+			mailer:domain
+		where "mailer" is the internal mailer name, and "domain"
+		is where to send the message.  These maps are not
+		reflected into the message header.
+
+domaintable	Include a "domain table" which can be used to provide
+		domain name mapping.  Use of this should really be
+		limited to your own domains.  It may be useful if you
+		change names (e.g., your company changes names from
+		oldname.com to newname.com).  The argument of the
+		FEATURE may be the key definition.  If none is specified,
+		the definition used is:
+			hash -o /etc/domaintable
+		The key in this table is the domain name; the value is
+		the new (fully qualified) domain.  Anything in the
+		domaintable is reflected into headers; that is, this
+		is done in ruleset 3.
+
+bitdomain	Look up bitnet hosts in a table to try to turn them into
+		internet addresses.  The table can be built using the
+		bitdomain program contributed by John Gardiner Myers.
+		The argument of the FEATURE may be the key definition; if
+		none is specified, the definition used is:
+			hash -o /etc/bitdomain.db
+		Keys are the bitnet hostname; values are the corresponding
+		internet hostname.
+
+uucpdomain	Similar feature for UUCP hosts.  The default map definition
+		is:
+			hash -o /etc/uudomain.db
+		At the moment there is no automagic tool to build this
+		database.
+
+always_add_domain
+		Include the local host domain even on locally delivered
+		mail.  Normally it is not added on unqualified names.
+		However, if you use a shared message store but do not use
+		the same user name space everywhere, you may need the host
+		name on local names.
+
+allmasquerade	If masquerading is enabled (using MASQUERADE_AS), this
+		feature will cause recipient addresses to also masquerade
+		as being from the masquerade host.  Normally they get
+		the local hostname.  Although this may be right for
+		ordinary users, it can break local aliases.  For example,
+		if you send to "localalias", the originating sendmail will
+		find that alias and send to all members, but send the
+		message with "To: localalias@masqueradehost".  Since that
+		alias likely does not exist, replies will fail.  Use this
+		feature ONLY if you can guarantee that the ENTIRE
+		namespace on your masquerade host supersets all the
+		local entries.
+
+limited_masquerade
+		Normally, any hosts listed in $=w are masqueraded.  If this
+		feature is given, only the hosts listed in $=M are masqueraded.
+		This is useful if you have several domains with disjoint
+		namespaces hosted on the same machine.
+
+masquerade_entire_domain
+		If masquerading is enabled (using MASQUERADE_AS) and 
+		MASQUERADE_DOMAIN (see below) is set, this feature will
+		cause addresses to be rewritten such that the masquerading
+		domains are actually entire domains to be hidden.  All
+		hosts within the masquerading domains will be rewritten
+		to the masquerade name (used in MASQUERADE_AS).  For example,
+		if you have:
+
+			MASQUERADE_AS(masq.com)
+			MASQUERADE_DOMAIN(foo.org)
+			MASQUERADE_DOMAIN(bar.com)
+
+		then *foo.org and *bar.com are converted to masq.com.  Without
+		this feature, only foo.org and bar.com are masqueraded.
+
+		    NOTE: only domains within your jurisdiction and
+		    current hierarchy should be masqueraded using this.
+
+genericstable	This feature will cause certain addresses originating in the
+		local domain or a domain listed in $=G to be looked up in a
+		map and turned into another ("generic") form, which can change
+		both the domain name and the user name.  This is similar to
+		the userdb functionality.  The same types of addresses as for
+		masquerading are looked up, i.e. only header sender addresses
+		unless the allmasquerade and/or masquerade_envelope features
+		are given.  The addresses must be in the list of names given
+		by the macros GENERICS_DOMAIN or GENERICS_DOMAIN_FILE
+		(analogously to MASQUERADE_DOMAIN and MASQUERADE_DOMAIN_FILE,
+		see below).
+
+		The argument of FEATURE(genericstable) may be the map
+		defintion; the default map definition is:
+
+			hash -o /etc/genericstable
+
+		The key for this table is either the full address or the
+		unqualified username (the former is tried first); the
+		value is the new user address.  If the new user address does
+		not include a domain, $j is used.  Note that the address
+		being looked up must be fully qualified.  For local mail, it
+		is necessary to use FEATURE(always_add_domain) for the
+		addresses to be qualified.
+
+virtusertable	A domain-specific form of aliasing, allowing multiple
+		virtual domains to be hosted on one machine.  For example,
+		if the virtuser table contained:
+
+			info@foo.com	foo-info
+			info@bar.com	bar-info
+			@baz.org	jane@elsewhere.net
+
+		then mail addressed to info@foo.com will be sent to the
+		address foo-info, mail addressed to info@bar.com will be
+		delivered to bar-info, and mail addressed to anyone at
+		baz.org will be sent to jane@elsewhere.net.  The username
+		from the original address is passed as %1 allowing:
+
+			@foo.org	%1@elsewhere.com
+
+		meaning someone@foo.org will be sent to someone@elsewhere.com.
+
+		All the host names on the left hand side (foo.com, bar.com,
+		and baz.org) must be in $=w.  The default map definition is:
+
+			hash -o /etc/virtusertable
+
+		A new definition can be specified as the second argument of
+		the FEATURE macro, such as
+
+			FEATURE(virtusertable, dbm -o /etc/mail/virtusers)
+
+nodns		We aren't running DNS at our site (for example,
+		we are UUCP-only connected).  It's hard to consider
+		this a "feature", but hey, it had to go somewhere.
+		Actually, as of 8.7 this is a no-op -- remove "dns" from
+		the hosts service switch entry instead.
+
+nullclient	This is a special case -- it creates a stripped down
+		configuration file containing nothing but support for
+		forwarding all mail to a central hub via a local
+		SMTP-based network.  The argument is the name of that
+		hub.
+		
+		The only other feature that should be used in conjunction
+		with this one is "nocanonify" (this causes addresses to
+		be sent unqualified via the SMTP connection; normally
+		they are qualifed with the masquerade name, which
+		defaults to the name of the hub machine).  No mailers
+		should be defined.  No aliasing or forwarding is done.
+
+local_procmail	Use procmail as the local mailer.  This mailer can
+		make use of the "user+indicator@local.host" syntax;
+		normally the +indicator is just tossed, but by default
+		it is passed as the -a argument to procmail.  The
+		argument to this feature is the pathname of procmail,
+		which defaults to PROCMAIL_MAILER_PATH.  Note that this
+		does NOT use PROCMAIL_MAILER_FLAGS or PROCMAIL_MAILER_ARGS
+		for the local mailer; tweak LOCAL_MAILER_FLAGS and
+		LOCAL_MAILER_ARGS instead.
+
+bestmx_is_local	Accept mail as though locally addressed for any host that
+		lists us as the best possible MX record.  This generates
+		additional DNS traffic, but should be OK for low to
+		medium traffic hosts.  THIS FEATURE IS FUNDAMENTALLY
+		INCOMPATIBLE WITH WILDCARD MX RECORDS!!!  If you have
+		a wildcard MX record that matches your domain, you
+		cannot use this feature.
+
+smrsh		Use the SendMail Restricted SHell (smrsh) provided
+		with the distribution instead of /bin/sh for mailing
+		to programs.  This improves the ability of the local
+		system administrator to control what gets run via
+		e-mail.  If an argument is provided it is used as the
+		pathname to smrsh; otherwise, /usr/local/etc/smrsh is
+		assumed.
+
+
++-------+
+| HACKS |
++-------+
+
+Some things just can't be called features.  To make this clear,
+they go in the hack subdirectory and are referenced using the HACK
+macro.  These will tend to be site-dependent.  The release
+includes the Berkeley-dependent "cssubdomain" hack (that makes
+sendmail accept local names in either Berkeley.EDU or CS.Berkeley.EDU;
+this is intended as a short-term aid while we move hosts into
+subdomains.
+
+
++--------------------+
+| SITE CONFIGURATION |
++--------------------+
+
+    *****************************************************
+    * This section is really obsolete, and is preserved	*
+    * only for back compatibility.  You should plan on	*
+    * using mailertables for new installations.	  In	*
+    * particular, it doesn't work for the newer forms	*
+    * of UUCP mailers, such as uucp-uudom.		*
+    *****************************************************
+
+Complex sites will need more local configuration information, such as
+lists of UUCP hosts they speak with directly.  This can get a bit more
+tricky.  For an example of a "complex" site, see cf/ucbvax.mc.
+
+If your host is known by several different names, you need to augment
+the $=w class.  This is a list of names by which you are known, and
+anything sent to an address using a host name in this list will be
+treated as local mail.  You can do this in two ways: either create
+the file /etc/sendmail.cw containing a list of your aliases (one per
+line), and use ``FEATURE(use_cw_file)'' in the .mc file, or add the
+line:
+
+	Cw alias.host.name
+
+at the end of that file.  See the ``vangogh.mc'' file for an example.
+Be sure you use the fully-qualified name of the host, rather than a
+short name.
+
+The SITECONFIG macro allows you to indirectly reference site-dependent
+configuration information stored in the siteconfig subdirectory.  For
+example, the line
+
+	SITECONFIG(uucp.ucbvax, ucbvax, U)
+
+reads the file uucp.ucbvax for local connection information.  The
+second parameter is the local name (in this case just "ucbvax" since
+it is locally connected, and hence a UUCP hostname).  The third
+parameter is the name of both a macro to store the local name (in
+this case, $U) and the name of the class (e.g., $=U) in which to store
+the host information read from the file.  Another SITECONFIG line reads
+
+	SITECONFIG(uucp.ucbarpa, ucbarpa.Berkeley.EDU, W)
+
+This says that the file uucp.ucbarpa contains the list of UUCP sites
+connected to ucbarpa.Berkeley.EDU.  The $=W class will be used to
+store this list, and $W is defined to be ucbarpa.Berkeley.EDU, that
+is, the name of the relay to which the hosts listed in uucp.ucbarpa
+are connected.  [The machine ucbarpa is gone now, but I've left
+this out-of-date configuration file around to demonstrate how you
+might do this.]
+
+Note that the case of SITECONFIG with a third parameter of ``U'' is
+special; the second parameter is assumed to be the UUCP name of the
+local site, rather than the name of a remote site, and the UUCP name
+is entered into $=w (the list of local hostnames) as $U.UUCP.
+
+The siteconfig file (e.g., siteconfig/uucp.ucbvax.m4) contains nothing
+more than a sequence of SITE macros describing connectivity.  For
+example:
+
+	SITE(cnmat)
+	SITE(sgi olympus)
+
+The second example demonstrates that you can use two names on the
+same line; these are usually aliases for the same host (or are at
+least in the same company).
+
+
++--------------------+
+| USING UUCP MAILERS |
++--------------------+
+
+It's hard to get UUCP mailers right because of the extremely ad hoc
+nature of UUCP addressing.  These config files are really designed
+for domain-based addressing, even for UUCP sites.
+
+There are four UUCP mailers available.  The choice of which one to
+use is partly a matter of local preferences and what is running at
+the other end of your UUCP connection.  Unlike good protocols that
+define what will go over the wire, UUCP uses the policy that you
+should do what is right for the other end; if they change, you have
+to change.  This makes it hard to do the right thing, and discourages
+people from updating their software.  In general, if you can avoid
+UUCP, please do.
+
+The major choice is whether to go for a domainized scheme or a
+non-domainized scheme.  This depends entirely on what the other
+end will recognize.  If at all possible, you should encourage the
+other end to go to a domain-based system -- non-domainized addresses
+don't work entirely properly.
+
+The four mailers are:
+
+    uucp-old (obsolete name: "uucp")
+	This is the oldest, the worst (but the closest to UUCP) way of
+	sending messages accros UUCP connections.  It does bangify
+	everything and prepends $U (your UUCP name) to the sender's
+	address (which can already be a bang path itself).  It can
+	only send to one address at a time, so it spends a lot of
+	time copying duplicates of messages.  Avoid this if at all
+	possible.
+
+    uucp-new (obsolete name: "suucp")
+	The same as above, except that it assumes that in one rmail
+	command you can specify several recipients.  It still has a
+	lot of other problems.
+
+    uucp-dom
+	This UUCP mailer keeps everything as domain addresses.
+	Basically, it uses the SMTP mailer rewriting rules.  This mailer
+	is only included if MAILER(smtp) is also specified.
+
+	Unfortunately, a lot of UUCP mailer transport agents require
+	bangified addresses in the envelope, although you can use
+	domain-based addresses in the message header.  (The envelope
+	shows up as the From_ line on UNIX mail.)  So....
+
+    uucp-uudom
+	This is a cross between uucp-new (for the envelope addresses)
+	and uucp-dom (for the header addresses).  It bangifies the
+	envelope sender (From_ line in messages) without adding the
+	local hostname, unless there is no host name on the address
+	at all (e.g., "wolf") or the host component is a UUCP host name
+	instead of a domain name ("somehost!wolf" instead of
+	"some.dom.ain!wolf").  This is also included only if MAILER(smtp)
+	is also specified.
+
+Examples:
+
+We are on host grasp.insa-lyon.fr (UUCP host name "grasp").  The
+following summarizes the sender rewriting for various mailers.
+
+Mailer          sender		rewriting in the envelope
+------		------		-------------------------
+uucp-{old,new}	wolf		grasp!wolf
+uucp-dom	wolf		wolf@grasp.insa-lyon.fr
+uucp-uudom	wolf		grasp.insa-lyon.fr!wolf
+
+uucp-{old,new}	wolf@fr.net	grasp!fr.net!wolf
+uucp-dom	wolf@fr.net	wolf@fr.net
+uucp-uudom	wolf@fr.net	fr.net!wolf
+
+uucp-{old,new}	somehost!wolf	grasp!somehost!wolf
+uucp-dom	somehost!wolf	somehost!wolf@grasp.insa-lyon.fr
+uucp-uudom	somehost!wolf	grasp.insa-lyon.fr!somehost!wolf
+
+If you are using one of the domainized UUCP mailers, you really want
+to convert all UUCP addresses to domain format -- otherwise, it will
+do it for you (and probably not the way you expected).  For example,
+if you have the address foo!bar!baz (and you are not sending to foo),
+the heuristics will add the @uucp.relay.name or @local.host.name to
+this address.  However, if you map foo to foo.host.name first, it
+will not add the local hostname.  You can do this using the uucpdomain
+feature.
+
+
++-------------------+
+| TWEAKING RULESETS |
++-------------------+
+
+For more complex configurations, you can define special rules.
+The macro LOCAL_RULE_3 introduces rules that are used in canonicalizing
+the names.  Any modifications made here are reflected in the header.
+
+A common use is to convert old UUCP addreses to SMTP addresses using
+the UUCPSMTP macro.  For example:
+
+	LOCAL_RULE_3
+	UUCPSMTP(decvax,	decvax.dec.com)
+	UUCPSMTP(research,	research.att.com)
+
+will cause addresses of the form "decvax!user" and "research!user"
+to be converted to "user@decvax.dec.com" and "user@research.att.com"
+respectively.
+
+This could also be used to look up hosts in a database map:
+
+	LOCAL_RULE_3
+	R$* < @ $+ > $*		$: $1 < @ $(hostmap $2 $) > $3
+
+This map would be defined in the LOCAL_CONFIG portion, as shown below.
+
+Similarly, LOCAL_RULE_0 can be used to introduce new parsing rules.
+For example, new rules are needed to parse hostnames that you accept
+via MX records.  For example, you might have:
+
+	LOCAL_RULE_0
+	R$+ <@ host.dom.ain.>	$#uucp $@ cnmat $: $1 < @ host.dom.ain.>
+
+You would use this if you had installed an MX record for cnmat.Berkeley.EDU
+pointing at this host; this rule catches the message and forwards it on
+using UUCP.
+
+You can also tweak rulesets 1 and 2 using LOCAL_RULE_1 and LOCAL_RULE_2.
+These rulesets are normally empty.
+
+A similar macro is LOCAL_CONFIG.  This introduces lines added after the
+boilerplate option setting but before rulesets, and can be used to
+declare local database maps or whatever.  For example:
+
+	LOCAL_CONFIG
+	Khostmap hash /etc/hostmap.db
+	Kyplocal nis -m hosts.byname
+
+
++---------------------------+
+| MASQUERADING AND RELAYING |
++---------------------------+
+
+You can have your host masquerade as another using
+
+	MASQUERADE_AS(host.domain)
+
+This causes mail being sent to be labeled as coming from the
+indicated host.domain, rather than $j.  One normally masquerades as
+one of one's own subdomains (for example, it's unlikely that I would
+choose to masquerade as an MIT site).  This behaviour is modified by
+a plethora of FEATUREs; in particular, see masquerade_envelope,
+allmasquerade, limited_masquerade, and masquerade_entire_domain.
+
+The masquerade name is not normally canonified, so it is important
+that it be your One True Name, that is, fully qualified and not a
+CNAME.  However, if you use a CNAME, the receiving side may canonify
+it for you, so don't think you can cheat CNAME mapping this way.
+
+Normally the only addresses that are masqueraded are those that come
+from this host (that is, are either unqualified or in $=w, the list
+of local domain names).  You can augment this list using
+
+	MASQUERADE_DOMAIN(otherhost.domain)
+
+The effect of this is that although mail to user@otherhost.domain
+will not be delivered locally, any mail including any user@otherhost.domain
+will, when relayed, be rewritten to have the MASQUERADE_AS address.
+This can be a space-separated list of names.
+
+If these names are in a file, you can use
+
+	MASQUERADE_DOMAIN_FILE(filename)
+
+to read the list of names from the indicated file.
+
+Normally only header addresses are masqueraded.  If you want to
+masquerade the envelope as well, use
+
+	FEATURE(masquerade_envelope)
+
+There are always users that need to be "exposed" -- that is, their
+internal site name should be displayed instead of the masquerade name.
+Root is an example.  You can add users to this list using
+
+	EXPOSED_USER(usernames)
+
+This adds users to class E; you could also use something like
+
+	FE/etc/sendmail.cE
+
+You can also arrange to relay all unqualified names (that is, names
+without @host) to a relay host.  For example, if you have a central
+email server, you might relay to that host so that users don't have
+to have .forward files or aliases.  You can do this using
+
+	define(`LOCAL_RELAY', mailer:hostname)
+
+The ``mailer:'' can be omitted, in which case the mailer defaults to
+"relay".  There are some user names that you don't want relayed, perhaps
+because of local aliases.  A common example is root, which may be
+locally aliased.  You can add entries to this list using
+
+	LOCAL_USER(usernames)
+
+This adds users to class L; you could also use something like
+
+	FL/etc/sendmail.cL
+
+If you want all incoming mail sent to a centralized hub, as for a
+shared /var/spool/mail scheme, use
+
+	define(`MAIL_HUB', mailer:hostname)
+
+Again, ``mailer:'' defaults to "relay".  If you define both LOCAL_RELAY
+and MAIL_HUB _AND_ you have FEATURE(stickyhost), unqualified names will
+be sent to the LOCAL_RELAY and other local names will be sent to MAIL_HUB.
+Names in $=L will be delivered locally, so you MUST have aliases or
+.forward files for them.
+
+For example, if you are on machine mastodon.CS.Berkeley.EDU and you have
+FEATURE(stickyhost), the following combinations of settings will have the
+indicated effects:
+
+email sent to....	eric			  eric@mastodon.CS.Berkeley.EDU
+
+LOCAL_RELAY set to	mail.CS.Berkeley.EDU	  (delivered locally)
+mail.CS.Berkeley.EDU	  (no local aliasing)	    (aliasing done)
+
+MAIL_HUB set to		mammoth.CS.Berkeley.EDU	  mammoth.CS.Berkeley.EDU
+mammoth.CS.Berkeley.EDU	  (aliasing done)	    (aliasing done)
+
+Both LOCAL_RELAY and	mail.CS.Berkeley.EDU	  mammoth.CS.Berkeley.EDU
+MAIL_HUB set as above	  (no local aliasing)	    (aliasing done)
+
+If you do not have FEATURE(stickyhost) set, then LOCAL_RELAY and
+MAIL_HUB act identically, with MAIL_HUB taking precedence.
+
+If you want all outgoing mail to go to a central relay site, define
+SMART_HOST as well.  Briefly:
+
+	LOCAL_RELAY applies to unqualifed names (e.g., "eric").
+	MAIL_HUB applies to names qualified with the name of the
+		local host (e.g., "eric@mastodon.CS.Berkeley.EDU").
+	SMART_HOST applies to names qualified with other hosts.
+
+However, beware that other relays (e.g., UUCP_RELAY, BITNET_RELAY,
+DECNET_RELAY, and FAX_RELAY) take precedence over SMART_HOST, so if you
+really want absolutely everything to go to a single central site you will
+need to unset all the other relays -- or better yet, find or build a
+minimal config file that does this.
+
+For duplicate suppression to work properly, the host name is best
+specified with a terminal dot:
+
+	define(`MAIL_HUB', `host.domain.')
+	      note the trailing dot ---^
+
+
++--------------------------------+
+| ADDING NEW MAILERS OR RULESETS |
++--------------------------------+
+
+Sometimes you may need to add entirely new mailers or rulesets.  They
+should be introduced with the constructs MAILER_DEFINITIONS and
+LOCAL_RULESETS respectively.  For example:
+
+	MAILER_DEFINITIONS
+	Mmymailer, ...
+	...
+
+	LOCAL_RULESETS
+	Scheck_relay
+	...
+
+
++-------------------------------+
+| NON-SMTP BASED CONFIGURATIONS |
++-------------------------------+
+
+These configuration files are designed primarily for use by SMTP-based
+sites.  I don't pretend that they are well tuned for UUCP-only or
+UUCP-primarily nodes (the latter is defined as a small local net
+connected to the rest of the world via UUCP).  However, there is one
+hook to handle some special cases.
+
+You can define a ``smart host'' that understands a richer address syntax
+using:
+
+	define(`SMART_HOST', mailer:hostname)
+
+In this case, the ``mailer:'' defaults to "relay".  Any messages that
+can't be handled using the usual UUCP rules are passed to this host.
+
+If you are on a local SMTP-based net that connects to the outside
+world via UUCP, you can use LOCAL_NET_CONFIG to add appropriate rules.
+For example:
+
+	define(`SMART_HOST', suucp:uunet)
+	LOCAL_NET_CONFIG
+	R$* < @ $* .$m. > $*	$#smtp $@ $2.$m. $: $1 < @ $2.$m. > $3
+
+This will cause all names that end in your domain name ($m) via
+SMTP; anything else will be sent via suucp (smart UUCP) to uunet.
+If you have FEATURE(nocanonify), you may need to omit the dots after
+the $m.  If you are running a local DNS inside your domain which is
+not otherwise connected to the outside world, you probably want to
+use:
+
+	define(`SMART_HOST', smtp:fire.wall.com)
+	LOCAL_NET_CONFIG
+	R$* < @ $* . > $*	$#smtp $@ $2. $: $1 < @ $2. > $3
+
+That is, send directly only to things you found in your DNS lookup;
+anything else goes through SMART_HOST.
+
+
++-----------+
+| WHO AM I? |
++-----------+
+
+Normally, the $j macro is automatically defined to be your fully
+qualified domain name (FQDN).  Sendmail does this by getting your
+host name using gethostname and then calling gethostbyname on the
+result.  For example, in some environments gethostname returns
+only the root of the host name (such as "foo"); gethostbyname is
+supposed to return the FQDN ("foo.bar.com").  In some (fairly rare)
+cases, gethostbyname may fail to return the FQDN.  In this case
+you MUST define confDOMAIN_NAME to be your fully qualified domain
+name.  This is usually done using:
+
+	Dmbar.com
+	define(`confDOMAIN_NAME', `$w.$m')dnl
+
+
++--------------------+
+| USING MAILERTABLES |
++--------------------+
+
+To use FEATURE(mailertable), you will have to create an external
+database containing the routing information for various domains.
+For example, a mailertable file in text format might be:
+
+	.my.domain		xnet:%1.my.domain
+	uuhost1.my.domain	suucp:uuhost1
+	.bitnet			smtp:relay.bit.net
+
+This should normally be stored in /etc/mailertable.  The actual
+database version of the mailertable is built using:
+
+	makemap hash /etc/mailertable.db < /etc/mailertable
+
+The semantics are simple.  Any LHS entry that does not begin with
+a dot matches the full host name indicated.  LHS entries beginning
+with a dot match anything ending with that domain name -- that is,
+they can be thought of as having a leading "*" wildcard.  Matching
+is done in order of most-to-least qualified -- for example, even
+though ".my.domain" is listed first in the above example, an entry
+of "uuhost1.my.domain" will match the second entry since it is
+more explicit.
+
+The RHS should always be a "mailer:host" pair.  The mailer is the
+configuration name of a mailer (that is, an `M' line in the
+sendmail.cf file).  The "host" will be the hostname passed to
+that mailer.  In domain-based matches (that is, those with leading
+dots) the "%1" may be used to interpolate the wildcarded part of
+the host name.  For example, the first line above sends everything
+addressed to "anything.my.domain" to that same host name, but using
+the (presumably experimental) xnet mailer.
+
+In some cases you may want to temporarily turn off MX records,
+particularly on gateways.  For example, you may want to MX
+everything in a domain to one machine that then forwards it
+directly.  To do this, you might use the DNS configuration:
+
+	*.domain.	IN	MX	0	relay.machine
+
+and on relay.machine use the mailertable:
+
+	.domain		smtp:[gateway.domain]
+
+The [square brackets] turn off MX records for this host only.
+If you didn't do this, the mailertable would use the MX record
+again, which would give you an MX loop.
+
+
++--------------------------------+
+| USING USERDB TO MAP FULL NAMES |
++--------------------------------+
+
+The user database was not originally intended for mapping full names
+to login names (e.g., Eric.Allman => eric), but some people are using
+it that way.  (I would recommend that you set up aliases for this
+purpose instead -- since you can specify multiple alias files, this
+is fairly easy.)  The intent was to locate the default maildrop at
+a site, but allow you to override this by sending to a specific host.
+
+If you decide to set up the user database in this fashion, it is
+imperative that you not use FEATURE(stickyhost) -- otherwise,
+e-mail sent to Full.Name@local.host.name will be rejected.
+
+To build the internal form of the user database, use:
+
+	makemap btree /usr/data/base.db < /usr/data/base.txt
+
+As a general rule, I am adamantly opposed to using full names as
+e-mail addresses, since they are not in any sense unique.  For example,
+the Unix software-development community has two Andy Tannenbaums,
+at least two well-known Peter Deutsches, and at one time Bell Labs
+had two Stephen R. Bournes with offices along the same hallway.
+Which one will be forced to suffer the indignity of being
+Stephen_R_Bourne_2?  The less famous of the two, or the one that
+was hired later?
+
+Finger should handle full names (and be fuzzy).  Mail should use
+handles, and not be fuzzy.  [Not that I expect anyone to pay any
+attention to my opinions.]
+
+
++--------------------------------+
+| MISCELLANEOUS SPECIAL FEATURES |
++--------------------------------+
+
+Plussed users
+	Sometimes it is convenient to merge configuration on a
+	centralized mail machine, for example, to forward all
+	root mail to a mail server.  In this case it might be
+	useful to be able to treat the root addresses as a class
+	of addresses with subtle differences.  You can do this
+	using plussed users.  For example, a client might include
+	the alias:
+
+		root:  root+client1@server
+
+	On the server, this will match an alias for "root+client1".
+	If that is not found, the alias "root+*" will be tried,
+	then "root".
+
+LDAP
+	For notes on use LDAP in sendmail, see
+	http://www-leland.stanford.edu/~bbense/Inst.html
+
+
+
++----------------+
+| SECURITY NOTES |
++----------------+
+
+A lot of sendmail security comes down to you.  Sendmail 8 is much
+more careful about checking for security problems than previous
+versions, but there are some things that you still need to watch
+for.  In particular:
+
+* Make sure the aliases file isn't writable except by trusted
+  system personnel.  This includes both the text and database
+  version.
+
+* Make sure that other files that sendmail reads, such as the
+  mailertable, are only writable by trusted system personnel.
+
+* The queue directory should not be world writable PARTICULARLY
+  if your system allows "file giveaways" (that is, if a non-root
+  user can chown any file they own to any other user).
+
+* If your system allows file giveaways, DO NOT create a publically
+  writable directory for forward files.  This will allow anyone
+  to steal anyone else's e-mail.  Instead, create a script that
+  copies the .forward file from users' home directories once a
+  night (if you want the non-NFS-mounted forward directory).
+
+* If your system allows file giveaways, you'll find that
+  sendmail is much less trusting of :include: files -- in
+  particular, you'll have to have /SENDMAIL/ANY/SHELL/ in
+  /etc/shells before they will be trusted (that is, before
+  files and programs listed in them will be honored).
+
+In general, file giveaways are a mistake -- if you can turn them
+off I recommend you do so.
+
+
++--------------------------------+
+| TWEAKING CONFIGURATION OPTIONS |
++--------------------------------+
+
+There are a large number of configuration options that don't normally
+need to be changed.  However, if you feel you need to tweak them, you
+can define the following M4 variables.  This list is shown in four
+columns:  the name you define, the default value for that definition,
+the option or macro that is affected (either Ox for an option or Dx
+for a macro), and a brief description.  Greater detail of the semantics
+can be found in the Installation and Operations Guide.
+
+Some options are likely to be deprecated in future versions -- that is,
+the option is only included to provide back-compatibility.  These are
+marked with "*".
+
+Remember that these options are M4 variables, and hence may need to
+be quoted.  In particular, arguments with commas will usually have to
+be ``double quoted, like this phrase'' to avoid having the comma
+confuse things.  This is common for alias file definitions and for
+the read timeout.
+
+M4 Variable Name	Configuration	Description & [Default]
+================	=============	=======================
+confMAILER_NAME		$n macro	[MAILER-DAEMON] The sender name used
+					for internally generated outgoing
+					messages.
+confDOMAIN_NAME		$j macro	If defined, sets $j.  This should
+					only be done if your system cannot
+					determine your local domain name,
+					and then it should be set to
+					$w.Foo.COM, where Foo.COM is your
+					domain name.
+confCF_VERSION		$Z macro	If defined, this is appended to the
+					configuration version name.
+confFROM_HEADER		From:		[$?x$x <$g>$|$g$.] The format of an 
+					internally generated From: address.
+confRECEIVED_HEADER	Received:
+		[$?sfrom $s $.$?_($?s$|from $.$_)
+			$.by $j ($v/$Z)$?r with $r$. id $i$?u
+			for $u; $|;
+			$.$b]
+					The format of the Received: header
+					in messages passed through this host.
+					It is unwise to try to change this.
+confCW_FILE		Fw class	[/etc/sendmail.cw] Name of file used
+					to get the local additions to the $=w
+					(local host names) class.
+confCT_FILE		Ft class	[/etc/sendmail.ct] Name of file used
+					to get the local additions to the $=t
+					(trusted users) class.
+confTRUSTED_USERS	Ct class	[no default] Names of users to add to
+					the list of trusted users.  This list
+					always includes root, uucp, and daemon.
+					See also FEATURE(use_ct_file).
+confSMTP_MAILER		-		[esmtp] The mailer name used when
+					SMTP connectivity is required.
+					One of "smtp", "smtp8", or "esmtp".
+confUUCP_MAILER		-		[uucp-old] The mailer to be used by
+					default for bang-format recipient
+					addresses.  See also discussion of
+					$=U, $=Y, and $=Z in the MAILER(uucp)
+					section.
+confLOCAL_MAILER	-		[local] The mailer name used when
+					local connectivity is required.
+					Almost always "local".
+confRELAY_MAILER	-		[relay] The default mailer name used
+					for relaying any mail (e.g., to a
+					BITNET_RELAY, a SMART_HOST, or
+					whatever).  This can reasonably be
+					"uucp-new" if you are on a
+					UUCP-connected site.
+confSEVEN_BIT_INPUT	SevenBitInput	[False] Force input to seven bits?
+confEIGHT_BIT_HANDLING	EightBitMode	[pass8] 8-bit data handling
+confALIAS_WAIT		AliasWait	[10m] Time to wait for alias file
+					rebuild until you get bored and
+					decide that the apparently pending
+					rebuild failed.
+confMIN_FREE_BLOCKS	MinFreeBlocks	[100] Minimum number of free blocks on
+					queue filesystem to accept SMTP mail.
+					(Prior to 8.7 this was minfree/maxsize,
+					where minfree was the number of free
+					blocks and maxsize was the maximum
+					message size.  Use confMAX_MESSAGE_SIZE
+					for the second value now.)
+confMAX_MESSAGE_SIZE	MaxMessageSize	[infinite] The maximum size of messages
+					that will be accepted (in bytes).
+confBLANK_SUB		BlankSub	[.] Blank (space) substitution
+					character.
+confCON_EXPENSIVE	HoldExpensive	[False] Avoid connecting immediately
+					to mailers marked expensive?
+confCHECKPOINT_INTERVAL	CheckpointInterval
+					[10] Checkpoint queue files every N
+					recipients.
+confDELIVERY_MODE	DeliveryMode	[background] Default delivery mode.
+confAUTO_REBUILD	AutoRebuildAliases
+					[False] Automatically rebuild alias
+					file if needed.
+confERROR_MODE		ErrorMode	[print] Error message mode.
+confERROR_MESSAGE	ErrorHeader	[undefined] Error message header/file.
+confSAVE_FROM_LINES	SafeFromLine	Save extra leading From_ lines.
+confTEMP_FILE_MODE	TempFileMode	[0600] Temporary file mode.
+confMATCH_GECOS		MatchGECOS	[True] Match GECOS field.
+confMAX_HOP		MaxHopCount	[25] Maximum hop count.
+confIGNORE_DOTS*	IgnoreDots	[False; always False in -bs or -bd mode]
+					Ignore dot as terminator for incoming
+					messages?
+confBIND_OPTS		ResolverOptions	[undefined] Default options for DNS
+					resolver.
+confMIME_FORMAT_ERRORS*	SendMimeErrors	[True] Send error messages as MIME-
+					encapsulated messages per RFC 1344.
+confFORWARD_PATH	ForwardPath	[$z/.forward.$w:$z/.forward]
+					The colon-separated list of places to
+					search for .forward files.  N.B.: see
+					the Security Notes section.
+confMCI_CACHE_SIZE	ConnectionCacheSize
+					[2] Size of open connection cache.
+confMCI_CACHE_TIMEOUT	ConnectionCacheTimeout
+					[5m] Open connection cache timeout.
+confHOST_STATUS_DIRECTORY HostStatusDirectory
+					[undefined] If set, host status is kept
+					on disk between sendmail runs in the
+					named directory tree.  This need not be
+					a full pathname, in which case it is
+					interpreted relative to the queue
+					directory.
+confSINGLE_THREAD_DELIVERY  SingleThreadDelivery
+					[False] If this option and the
+					HostStatusDirectory option are both
+					set, single thread deliveries to other
+					hosts.  That is, don't allow any two
+					sendmails on this host to connect
+					simultaneously to any other single
+					host.  This can slow down delivery in
+					some cases, in particular since a
+					cached but otherwise idle connection
+					to a host will prevent other sendmails
+					from connecting to the other host.
+confUSE_ERRORS_TO*	UserErrorsTo	[False] Use the Errors-To: header to
+					deliver error messages.  This should
+					not be necessary because of general
+					acceptance of the envelope/header
+					distinction.
+confLOG_LEVEL		LogLevel	[9] Log level.
+confME_TOO		MeToo		[False] Include sender in group
+					expansions.
+confCHECK_ALIASES	CheckAliases	[False] Check RHS of aliases when
+					running newaliases.  Since this does
+					DNS lookups on every address, it can
+					slow down the alias rebuild process
+					considerably on large alias files.
+confOLD_STYLE_HEADERS*	OldStyleHeaders	[True] Assume that headers without
+					special chars are old style.
+confDAEMON_OPTIONS	DaemonPortOptions
+					[none] SMTP daemon options.
+confPRIVACY_FLAGS	PrivacyOptions	[authwarnings] Privacy flags.
+confCOPY_ERRORS_TO	PostmasterCopy	[undefined] Address for additional
+					copies of all error messages.
+confQUEUE_FACTOR	QueueFactor	[600000] Slope of queue-only function.
+confDONT_PRUNE_ROUTES	DontPruneRoutes	[False] Don't prune down route-addr
+					syntax addresses to the minimum
+					possible.
+confSAFE_QUEUE*		SuperSafe	[True] Commit all messages to disk
+					before forking.
+confTO_INITIAL		Timeout.initial	[5m] The timeout waiting for a response
+					on the initial connect.
+confTO_CONNECT		Timeout.connect	[0] The timeout waiting for an initial
+					connect() to complete.  This can only
+					shorten connection timeouts; the kernel
+					silently enforces an absolute maximum
+					(which varies depending on the system).
+confTO_ICONNECT		Timeout.iconnect
+					[undefined] Like Timeout.connect, but
+					applies only to the very first attempt
+					to connect to a host in a message.
+					This allows a single very fast pass
+					followed by more careful delivery
+					attempts in the future.
+confTO_HELO		Timeout.helo	[5m] The timeout waiting for a response
+					to a HELO or EHLO command.
+confTO_MAIL		Timeout.mail	[10m] The timeout waiting for a
+					response to the MAIL command.
+confTO_RCPT		Timeout.rcpt	[1h] The timeout waiting for a response
+					to the RCPT command.
+confTO_DATAINIT		Timeout.datainit
+					[5m] The timeout waiting for a 354
+					response from the DATA command.
+confTO_DATABLOCK	Timeout.datablock
+					[1h] The timeout waiting for a block
+					during DATA phase.
+confTO_DATAFINAL	Timeout.datafinal
+					[1h] The timeout waiting for a response
+					to the final "." that terminates a
+					message.
+confTO_RSET		Timeout.rset	[5m] The timeout waiting for a response
+					to the RSET command.
+confTO_QUIT		Timeout.quit	[2m] The timeout waiting for a response
+					to the QUIT command.
+confTO_MISC		Timeout.misc	[2m] The timeout waiting for a response
+					to other SMTP commands.
+confTO_COMMAND		Timeout.command	[1h] In server SMTP, the timeout waiting
+					for a command to be issued.
+confTO_IDENT		Timeout.ident	[30s] The timeout waiting for a response
+					to an IDENT query.
+confTO_FILEOPEN		Timeout.fileopen
+					[60s] The timeout waiting for a file
+					(e.g., :include: file) to be opened.
+confTO_QUEUERETURN	Timeout.queuereturn
+					[5d] The timeout before a message is
+					returned as undeliverable.
+confTO_QUEUERETURN_NORMAL
+			Timeout.queuereturn.normal
+					[undefined] As above, for normal
+					priority messages.
+confTO_QUEUERETURN_URGENT
+			Timeout.queuereturn.urgent
+					[undefined] As above, for urgent
+					priority messages.
+confTO_QUEUERETURN_NONURGENT
+			Timeout.queuereturn.non-urgent
+					[undefined] As above, for non-urgent
+					(low) priority messages.
+confTO_QUEUEWARN	Timeout.queuewarn
+					[4h] The timeout before a warning
+					message is sent to the sender telling
+					them that the message has been deferred.
+confTO_QUEUEWARN_NORMAL	Timeout.queuewarn.normal
+					[undefined] As above, for normal
+					priority messages.
+confTO_QUEUEWARN_URGENT	Timeout.queuewarn.urgent
+					[undefined] As above, for urgent
+					priority messages.
+confTO_QUEUEWARN_NONURGENT
+			Timeout.queuewarn.non-urgent
+					[undefined] As above, for non-urgent
+					(low) priority messages.
+confTO_HOSTSTATUS	Timeout.hoststatus
+					[30m] How long information about host
+					statuses will be maintained before it
+					is considered stale and the host should
+					be retried.  This applies both within
+					a single queue run and to persistent
+					information (see below).
+confTIME_ZONE		TimeZoneSpec	[USE_SYSTEM] Time zone info -- can be
+					USE_SYSTEM to use the system's idea,
+					USE_TZ to use the user's TZ envariable,
+					or something else to force that value.
+confDEF_USER_ID		DefaultUser	[1:1] Default user id.
+confUSERDB_SPEC		UserDatabaseSpec
+					[undefined] User database specification.
+confFALLBACK_MX		FallbackMXhost	[undefined] Fallback MX host.
+confTRY_NULL_MX_LIST	TryNullMXList	[False] If we are the best MX for a
+					host and haven't made other
+					arrangements, try connecting to the
+					host directly; normally this would be
+					a config error.
+confQUEUE_LA		QueueLA		[8] Load average at which queue-only
+					function kicks in.
+confREFUSE_LA		RefuseLA	[12] Load average at which incoming
+					SMTP connections are refused.
+confMAX_DAEMON_CHILDREN	MaxDaemonChildren
+					[undefined] The maximum number of
+					children the daemon will permit.  After
+					this number, connections will be
+					rejected.  If not set or <= 0, there is
+					no limit.
+confCONNECTION_RATE_THROTTLE ConnectionRateThrottle
+					[undefined] The maximum number of
+					connections permitted per second.
+					After this many connections are
+					accepted, further connections will be
+					delayed.  If not set or <= 0, there is
+					no limit.
+confWORK_RECIPIENT_FACTOR
+			RecipientFactor	[30000] Cost of each recipient.
+confSEPARATE_PROC	ForkEachJob	[False] Run all deliveries in a separate
+					process.
+confWORK_CLASS_FACTOR	ClassFactor	[1800] Priority multiplier for class.
+confWORK_TIME_FACTOR	RetryFactor	[90000] Cost of each delivery attempt.
+confQUEUE_SORT_ORDER	QueueSortOrder	[Priority] Queue sort algorithm:
+					Priority, Host, or Time.
+confMIN_QUEUE_AGE	MinQueueAge	[0] The minimum amount of time a job
+					must sit in the queue between queue
+					runs.  This allows you to set the
+					queue run interval low for better
+					resposiveness without trying all
+					jobs in each run.
+confDEF_CHAR_SET	DefaultCharSet	[unknown-8bit] When converting
+					unlabelled 8 bit input to MIME, the
+					character set to use by default.
+confSERVICE_SWITCH_FILE	ServiceSwitchFile
+					[/etc/service.switch] The file to use
+					for the service switch on systems that
+					do not have a system-defined switch.
+confHOSTS_FILE		HostsFile	[/etc/hosts] The file to use when doing
+					"file" type access of hosts names.
+confDIAL_DELAY		DialDelay	[0s] If a connection fails, wait this
+					long and try again.  Zero means "don't
+					retry".  This is to allow "dial on
+					demand" connections to have enough time
+					to complete a connection.
+confNO_RCPT_ACTION	NoRecipientAction
+					[none] What to do if there are no legal
+					recipient fields (To:, Cc: or Bcc:)
+					in the message.  Legal values can
+					be "none" to just leave the
+					nonconforming message as is, "add-to"
+					to add a To: header with all the
+					known recipients (which may expose
+					blind recipients), "add-apparently-to"
+					to do the same but use Apparently-To:
+					instead of To:, "add-bcc" to add an
+					empty Bcc: header, or
+					"add-to-undisclosed" to add the header
+					``To: undisclosed-recipients:;''.
+confSAFE_FILE_ENV	SafeFileEnvironment
+					[undefined] If set, sendmail will do a
+					chroot() into this directory before
+					writing files.
+confCOLON_OK_IN_ADDR	ColonOkInAddr	[True unless Configuration Level > 6]
+					If set, colons are treated as a regular
+					character in addresses.  If not set,
+					they are treated as the introducer to
+					the RFC 822 "group" syntax.  Colons are
+					handled properly in route-addrs.  This
+					option defaults on for V5 and lower
+					configuration files.
+confMAX_QUEUE_RUN_SIZE	MaxQueueRunSize	[0] If set, limit the maximum size of
+					any given queue run to this number of
+					entries.  Essentially, this will stop
+					reading the queue directory after this
+					number of entries are reached; it does
+					_not_ pick the highest priority jobs,
+					so this should be as large as your
+					system can tolerate.  If not set, there
+					is no limit.
+confDONT_EXPAND_CNAMES	DontExpandCnames
+					[False] If set, $[ ... $] lookups that
+					do DNS based lookups do not expand
+					CNAME records.  This currently violates
+					the published standards, but the IETF
+					seems to be moving toward legalizing
+					this.  For example, if "FTP.Foo.ORG"
+					is a CNAME for "Cruft.Foo.ORG", then
+					with this option set a lookup of
+					"FTP" will return "FTP.Foo.ORG"; if
+					clear it returns "Cruft.FOO.ORG".  N.B.
+					you may not see any effect until your
+					downstream neighbors stop doing CNAME
+					lookups as well.
+confFROM_LINE		UnixFromLine	[From $g  $d] The From_ line used
+					when sending to files or programs.
+confOPERATORS		OperatorChars	[.:%@!^/[]+] Address operator
+					characters.
+confSMTP_LOGIN_MSG	SmtpGreetingMessage
+					[$j Sendmail $v/$Z; $b]
+					The initial (spontaneous) SMTP
+					greeting message.  The word "ESMTP"
+					will be inserted between the first and
+					second words to convince other
+					sendmails to try to speak ESMTP.
+confDONT_INIT_GROUPS	DontInitGroups	[False] If set, the initgroups(3)
+					routine will never be invoked.  You
+					might want to do this if you are
+					running NIS and you have a large group
+					map, since this call does a sequential
+					scan of the map; in a large site this
+					can cause your ypserv to run
+					essentially full time.  If you set
+					this, agents run on behalf of users
+					will only have their primary
+					(/etc/passwd) group permissions.
+confUNSAFE_GROUP_WRITES	UnsafeGroupWrites
+					[False] If set, group-writable
+					:include: and .forward files are
+					considered "unsafe", that is, programs
+					and files cannot be directly referenced
+					from such files.  World-writable files
+					are always considered unsafe.
+confDOUBLE_BOUNCE_ADDRESS  DoubleBounceAddress
+					[postmaster] If an error occurs when
+					sending an error message, send that
+					"double bounce" error message to this
+					address.
+confRUN_AS_USER		RunAsUser	[undefined] If set, become this user
+					when reading and delivering mail.
+					Causes all file reads (e.g., .forward
+					and :include: files) to be done as
+					this user.  Also, all programs will
+					be run as this user, and all output
+					files will be written as this user.
+					Intended for use only on firewalls
+					where users do not have accounts.
+
+See also the description of OSTYPE for some parameters that can be
+tweaked (generally pathnames to mailers).
+
+
++-----------+
+| HIERARCHY |
++-----------+
+
+Within this directory are several subdirectories, to wit:
+
+m4		General support routines.  These are typically
+		very important and should not be changed without
+		very careful consideration.
+
+cf		The configuration files themselves.  They have
+		".mc" suffixes, and must be run through m4 to
+		become complete.  The resulting output should
+		have a ".cf" suffix.
+
+ostype		Definitions describing a particular operating
+		system type.  These should always be referenced
+		using the OSTYPE macro in the .mc file.  Examples
+		include "bsd4.3", "bsd4.4", "sunos3.5", and
+		"sunos4.1".
+
+domain		Definitions describing a particular domain, referenced
+		using the DOMAIN macro in the .mc file.  These are
+		site dependent; for example, "CS.Berkeley.EDU.m4"
+		describes hosts in the CS.Berkeley.EDU subdomain.
+
+mailer		Descriptions of mailers.   These are referenced using
+		the MAILER macro in the .mc file.
+
+sh		Shell files used when building the .cf file from the
+		.mc file in the cf subdirectory.
+
+feature		These hold special orthogonal features that you might
+		want to include.  They should be referenced using
+		the FEATURE macro.
+
+hack		Local hacks.  These can be referenced using the HACK
+		macro.  They shouldn't be of more than voyeuristic
+		interest outside the .Berkeley.EDU domain, but who knows?
+		We've all got our own peccadillos.
+
+siteconfig	Site configuration -- e.g., tables of locally connected
+		UUCP sites.
+
+
++------------------------+
+| ADMINISTRATIVE DETAILS |
++------------------------+
+
+The following sections detail usage of certain internal parts of the
+sendmail.cf file.  Read them carefully if you are trying to modify
+the current model.  If you find the above descriptions adequate, these
+should be {boring, confusing, tedious, ridiculous} (pick one or more).
+
+RULESETS (* means built in to sendmail)
+
+   0 *	Parsing
+   1 *	Sender rewriting
+   2 *	Recipient rewriting
+   3 *	Canonicalization
+   4 *	Post cleanup
+   5 *	Local address rewrite (after aliasing)
+  1x	mailer rules (sender qualification)
+  2x	mailer rules (recipient qualification)
+  3x	mailer rules (sender header qualification)
+  4x	mailer rules (recipient header qualification)
+  5x	mailer subroutines (general)
+  6x	mailer subroutines (general)
+  7x	mailer subroutines (general)
+  8x	reserved
+  90	Mailertable host stripping
+  96	Bottom half of Ruleset 3 (ruleset 6 in old sendmail)
+  97	Hook for recursive ruleset 0 call (ruleset 7 in old sendmail)
+  98	Local part of ruleset 0 (ruleset 8 in old sendmail)
+  99	Guaranteed null (for debugging)
+
+
+MAILERS
+
+   0	local, prog	local and program mailers
+   1	[e]smtp, relay	SMTP channel
+   2	uucp-*		UNIX-to-UNIX Copy Program
+   3	netnews		Network News delivery
+   4	fax		Sam Leffler's HylaFAX software
+   5	mail11		DECnet mailer
+
+
+MACROS
+
+   A
+   B	Bitnet Relay
+   C	DECnet Relay
+   D	The local domain -- usually not needed
+   E	reserved for X.400 Relay
+   F	FAX Relay
+   G
+   H	mail Hub (for mail clusters)
+   I
+   J
+   K
+   L	Luser Relay
+   M	Masquerade (who I claim to be)
+   N
+   O
+   P
+   Q
+   R	Relay (for unqualified names)
+   S	Smart Host
+   T
+   U	my UUCP name (if I have a UUCP connection)
+   V	UUCP Relay (class V hosts)
+   W	UUCP Relay (class W hosts)
+   X	UUCP Relay (class X hosts)
+   Y	UUCP Relay (all other hosts)
+   Z	Version number
+
+
+CLASSES
+
+   A
+   B	domains that are candidates for bestmx lookup
+   C
+   D
+   E	addresses that should not seem to come from $M
+   F	hosts we forward for
+   G	domains that should be looked up in genericstable
+   H
+   I
+   J
+   K
+   L	addresses that should not be forwarded to $R
+   M	domains that should be mapped to $M
+   N
+   O	operators that indicate network operations (cannot be in local names)
+   P	top level pseudo-domains: BITNET, DECNET, FAX, UUCP, etc.
+   Q
+   R	domains we are willing to relay (pass anti-spam filters)
+   S
+   T
+   U	locally connected UUCP hosts
+   V	UUCP hosts connected to relay $V
+   W	UUCP hosts connected to relay $W
+   X	UUCP hosts connected to relay $X
+   Y	locally connected smart UUCP hosts
+   Z	locally connected domain-ized UUCP hosts
+   .	the class containing only a dot
+   [	the class containing only a left bracket
+
+
+M4 DIVERSIONS
+
+   1	Local host detection and resolution
+   2	Local Ruleset 3 additions
+   3	Local Ruleset 0 additions
+   4	UUCP Ruleset 0 additions
+   5	locally interpreted names (overrides $R)
+   6	local configuration (at top of file)
+   7	mailer definitions
+   8
+   9	special local rulesets (1 and 2)
diff --git a/cf/cf/Makefile b/cf/cf/Makefile
new file mode 100644
index 0000000..7450b2a
--- /dev/null
+++ b/cf/cf/Makefile
@@ -0,0 +1,111 @@
+#	@(#)Makefile	8.19 (Berkeley) 1/14/97
+
+#
+#  This Makefile uses the new Berkeley "make" program.  See Makefile.dist
+#  for a more vanilla version.
+#
+#  Create configuration files using "m4 ../m4/cf.m4 file.mc > file.cf";
+#  this may be easier than tweaking the Makefile.  You do need to
+#  have a fairly modern M4 available (GNU m4 works).  On SunOS, use
+#  /usr/5bin/m4.
+#
+
+M4=	m4
+#M4=	/usr/src/usr.bin/m4/obj/m4
+CFDIR=	..
+CHMOD=	chmod
+ROMODE=	444
+RM=	rm -f
+
+.SUFFIXES:  .mc .cf
+
+.mc.cf:
+	$(RM) $@
+	(cd ${.CURDIR} && $(M4) ${CFDIR}/m4/cf.m4 ${@:R}.mc > obj/$@)
+	$(CHMOD) $(ROMODE) $@
+
+ALL=	generic-bsd4.4.cf generic-hpux9.cf generic-hpux10.cf \
+		generic-osf1.cf generic-solaris2.cf \
+		generic-sunos4.1.cf generic-ultrix4.cf \
+	cs-hpux9.cf cs-osf1.cf cs-solaris2.cf \
+		cs-sunos4.1.cf cs-ultrix4.cf \
+	s2k-osf1.cf s2k-ultrix4.cf \
+	chez.cs.cf huginn.cs.cf mail.cs.cf mail.eecs.cf mailspool.cs.cf \
+		python.cs.cf ucbarpa.cf ucbvax.cf vangogh.cs.cf knecht.cf
+
+all: $(ALL)
+
+clean cleandir:
+	$(RM) $(ALL) core
+
+depend install: 
+
+# this is overkill, but....
+M4FILES=\
+	${CFDIR}/domain/Berkeley.EDU.m4 \
+	${CFDIR}/domain/CS.Berkeley.EDU.m4 \
+	${CFDIR}/domain/EECS.Berkeley.EDU.m4 \
+	${CFDIR}/domain/S2K.Berkeley.EDU.m4 \
+	${CFDIR}/feature/allmasquerade.m4 \
+	${CFDIR}/feature/always_add_domain.m4 \
+	${CFDIR}/feature/bestmx_is_local.m4 \
+	${CFDIR}/feature/bitdomain.m4 \
+	${CFDIR}/feature/domaintable.m4 \
+	${CFDIR}/feature/local_procmail.m4 \
+	${CFDIR}/feature/mailertable.m4 \
+	${CFDIR}/feature/nocanonify.m4 \
+	${CFDIR}/feature/nodns.m4 \
+	${CFDIR}/feature/notsticky.m4 \
+	${CFDIR}/feature/nouucp.m4 \
+	${CFDIR}/feature/nullclient.m4 \
+	${CFDIR}/feature/redirect.m4 \
+	${CFDIR}/feature/smrsh.m4 \
+	${CFDIR}/feature/stickyhost.m4 \
+	${CFDIR}/feature/use_cw_file.m4 \
+	${CFDIR}/feature/uucpdomain.m4 \
+	${CFDIR}/hack/cssubdomain.m4 \
+	${CFDIR}/m4/cf.m4 \
+	${CFDIR}/m4/cfhead.m4 \
+	${CFDIR}/m4/nullrelay.m4 \
+	${CFDIR}/m4/proto.m4 \
+	${CFDIR}/m4/version.m4 \
+	${CFDIR}/mailer/cyrus.m4 \
+	${CFDIR}/mailer/fax.m4 \
+	${CFDIR}/mailer/local.m4 \
+	${CFDIR}/mailer/mail11.m4 \
+	${CFDIR}/mailer/pop.m4 \
+	${CFDIR}/mailer/procmail.m4 \
+	${CFDIR}/mailer/smtp.m4 \
+	${CFDIR}/mailer/usenet.m4 \
+	${CFDIR}/mailer/uucp.m4 \
+	${CFDIR}/ostype/aix3.m4 \
+	${CFDIR}/ostype/amdahl-uts.m4 \
+	${CFDIR}/ostype/aux.m4 \
+	${CFDIR}/ostype/bsd4.3.m4 \
+	${CFDIR}/ostype/bsd4.4.m4 \
+	${CFDIR}/ostype/bsdi1.0.m4 \
+	${CFDIR}/ostype/dgux.m4 \
+	${CFDIR}/ostype/domainos.m4 \
+	${CFDIR}/ostype/dynix3.2.m4 \
+	${CFDIR}/ostype/hpux9.m4 \
+	${CFDIR}/ostype/irix4.m4 \
+	${CFDIR}/ostype/irix5.m4 \
+	${CFDIR}/ostype/linux.m4 \
+	${CFDIR}/ostype/nextstep.m4 \
+	${CFDIR}/ostype/osf1.m4 \
+	${CFDIR}/ostype/ptx2.m4 \
+	${CFDIR}/ostype/riscos4.5.m4 \
+	${CFDIR}/ostype/sco3.2.m4 \
+	${CFDIR}/ostype/solaris2.m4 \
+	${CFDIR}/ostype/sunos3.5.m4 \
+	${CFDIR}/ostype/sunos4.1.m4 \
+	${CFDIR}/ostype/svr4.m4 \
+	${CFDIR}/ostype/ultrix4.m4 \
+	${CFDIR}/siteconfig/uucp.cogsci.m4 \
+	${CFDIR}/siteconfig/uucp.old.arpa.m4 \
+	${CFDIR}/siteconfig/uucp.ucbarpa.m4 \
+	${CFDIR}/siteconfig/uucp.ucbvax.m4 \
+
+$(ALL):  $(M4FILES)
+
+.include <bsd.prog.mk>
diff --git a/cf/cf/Makefile.dist b/cf/cf/Makefile.dist
new file mode 100644
index 0000000..051e9d3
--- /dev/null
+++ b/cf/cf/Makefile.dist
@@ -0,0 +1,108 @@
+#
+#  Makefile for configuration files.
+#
+#	@(#)Makefile.dist	8.11 (Berkeley) 1/14/97
+#
+
+#
+#  Create configuration files using "m4 ../m4/cf.m4 file.mc > file.cf";
+#  this may be easier than tweaking the Makefile.  You do need to
+#  have a fairly modern M4 available (GNU m4 works).  On SunOS, use
+#  /usr/5bin/m4.
+#
+
+M4=	m4
+#M4=	/usr/src/usr.bin/m4/obj/m4
+CFDIR=	..
+CHMOD=	chmod
+ROMODE=	444
+RM=	rm -f
+
+.SUFFIXES:  .mc .cf
+
+.mc.cf:
+	$(RM) $@
+	$(M4) ${CFDIR}/m4/cf.m4 $*.mc > $@
+	$(CHMOD) $(ROMODE) $@
+
+ALL=	generic-bsd4.4.cf generic-hpux9.cf generic-hpux10.cf \
+		generic-osf1.cf generic-solaris2.cf \
+	cs-hpux9.cf cs-osf1.cf cs-solaris2.cf \
+		cs-sunos4.1.cf cs-ultrix4.cf \
+	s2k-osf1.cf s2k-ultrix4.cf \
+	chez.cs.cf huginn.cs.cf mail.cs.cf mail.eecs.cf mailspool.cs.cf \
+		python.cs.cf ucbarpa.cf ucbvax.cf vangogh.cs.cf knecht.cf
+
+all: $(ALL)
+
+clean cleandir:
+	$(RM) $(ALL) core
+
+depend install: 
+
+# this is overkill, but....
+M4FILES=\
+	${CFDIR}/domain/Berkeley.EDU.m4 \
+	${CFDIR}/domain/CS.Berkeley.EDU.m4 \
+	${CFDIR}/domain/EECS.Berkeley.EDU.m4 \
+	${CFDIR}/domain/S2K.Berkeley.EDU.m4 \
+	${CFDIR}/feature/allmasquerade.m4 \
+	${CFDIR}/feature/always_add_domain.m4 \
+	${CFDIR}/feature/bestmx_is_local.m4 \
+	${CFDIR}/feature/bitdomain.m4 \
+	${CFDIR}/feature/domaintable.m4 \
+	${CFDIR}/feature/local_procmail.m4 \
+	${CFDIR}/feature/mailertable.m4 \
+	${CFDIR}/feature/nocanonify.m4 \
+	${CFDIR}/feature/nodns.m4 \
+	${CFDIR}/feature/notsticky.m4 \
+	${CFDIR}/feature/nouucp.m4 \
+	${CFDIR}/feature/nullclient.m4 \
+	${CFDIR}/feature/redirect.m4 \
+	${CFDIR}/feature/smrsh.m4 \
+	${CFDIR}/feature/stickyhost.m4 \
+	${CFDIR}/feature/use_cw_file.m4 \
+	${CFDIR}/feature/uucpdomain.m4 \
+	${CFDIR}/hack/cssubdomain.m4 \
+	${CFDIR}/m4/cf.m4 \
+	${CFDIR}/m4/nullrelay.m4 \
+	${CFDIR}/m4/proto.m4 \
+	${CFDIR}/m4/version.m4 \
+	${CFDIR}/mailer/cyrus.m4 \
+	${CFDIR}/mailer/fax.m4 \
+	${CFDIR}/mailer/local.m4 \
+	${CFDIR}/mailer/mail11.m4 \
+	${CFDIR}/mailer/pop.m4 \
+	${CFDIR}/mailer/procmail.m4 \
+	${CFDIR}/mailer/smtp.m4 \
+	${CFDIR}/mailer/usenet.m4 \
+	${CFDIR}/mailer/uucp.m4 \
+	${CFDIR}/ostype/aix3.m4 \
+	${CFDIR}/ostype/amdahl-uts.m4 \
+	${CFDIR}/ostype/aux.m4 \
+	${CFDIR}/ostype/bsd4.3.m4 \
+	${CFDIR}/ostype/bsd4.4.m4 \
+	${CFDIR}/ostype/bsdi1.0.m4 \
+	${CFDIR}/ostype/dgux.m4 \
+	${CFDIR}/ostype/domainos.m4 \
+	${CFDIR}/ostype/dynix3.2.m4 \
+	${CFDIR}/ostype/hpux9.m4 \
+	${CFDIR}/ostype/irix4.m4 \
+	${CFDIR}/ostype/irix5.m4 \
+	${CFDIR}/ostype/linux.m4 \
+	${CFDIR}/ostype/nextstep.m4 \
+	${CFDIR}/ostype/osf1.m4 \
+	${CFDIR}/ostype/ptx2.m4 \
+	${CFDIR}/ostype/riscos4.5.m4 \
+	${CFDIR}/ostype/sco3.2.m4 \
+	${CFDIR}/ostype/solaris2.m4 \
+	${CFDIR}/ostype/sunos3.5.m4 \
+	${CFDIR}/ostype/sunos4.1.m4 \
+	${CFDIR}/ostype/svr4.m4 \
+	${CFDIR}/ostype/ultrix4.m4 \
+	${CFDIR}/siteconfig/uucp.cogsci.m4 \
+	${CFDIR}/siteconfig/uucp.old.arpa.m4 \
+	${CFDIR}/siteconfig/uucp.ucbarpa.m4 \
+	${CFDIR}/siteconfig/uucp.ucbvax.m4 \
+
+$(ALL):  $(M4FILES)
diff --git a/cf/cf/chez.cs.mc b/cf/cf/chez.cs.mc
new file mode 100644
index 0000000..85f7e5c
--- /dev/null
+++ b/cf/cf/chez.cs.mc
@@ -0,0 +1,55 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for a specific
+#  machine in the Computer Science Division at Berkeley, and should
+#  not be used elsewhere.   It is provided on the sendmail distribution
+#  as a sample only.
+#
+#  This file is for a home machine that wants to masquerade as an
+#  on-campus machine.  Additionally, all addresses without a hostname
+#  will be forwarded to that machine.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)chez.cs.mc	8.6 (Berkeley) 3/23/96')
+OSTYPE(bsd4.4)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+define(`LOCAL_RELAY', vangogh.CS.Berkeley.EDU)dnl
+MASQUERADE_AS(vangogh.CS.Berkeley.EDU)dnl
+FEATURE(use_cw_file)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/clientproto.mc b/cf/cf/clientproto.mc
new file mode 100644
index 0000000..7cbb352
--- /dev/null
+++ b/cf/cf/clientproto.mc
@@ -0,0 +1,55 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This the prototype for a "null client" -- that is, a client that
+#  does nothing except forward all mail to a mail hub.  IT IS NOT
+#  USABLE AS IS!!!
+#
+#  To use this, you MUST use the nullclient feature with the name of
+#  the mail hub as its argument.  You MUST also define an `OSTYPE' to
+#  define the location of the queue directories and the like.
+#  In addition, you MAY select the nocanonify feature.  This causes
+#  addresses to be sent unqualified via the SMTP connection; normally
+#  they are qualifed with the masquerade name, which defaults to the
+#  name of the hub machine.
+#  Other than these, it should never contain any other lines.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)clientproto.mc	8.7 (Berkeley) 3/23/96')
+
+OSTYPE(unknown)
+FEATURE(nullclient, mailhost.$m)
diff --git a/cf/cf/cs-hpux10.mc b/cf/cf/cs-hpux10.mc
new file mode 100644
index 0000000..898f360
--- /dev/null
+++ b/cf/cf/cs-hpux10.mc
@@ -0,0 +1,52 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for HP-UX 9.x.
+#  It applies only to the Computer Science Division at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)cs-hpux10.mc	8.5 (Berkeley) 6/3/97')
+OSTYPE(hpux10)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+define(`MAIL_HUB', mailspool.CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/cs-hpux9.mc b/cf/cf/cs-hpux9.mc
new file mode 100644
index 0000000..96ff7c8
--- /dev/null
+++ b/cf/cf/cs-hpux9.mc
@@ -0,0 +1,52 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for HP-UX 9.x.
+#  It applies only to the Computer Science Division at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)cs-hpux9.mc	8.6 (Berkeley) 6/3/97')
+OSTYPE(hpux9)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+define(`MAIL_HUB', mailspool.CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/cs-osf1.mc b/cf/cf/cs-osf1.mc
new file mode 100644
index 0000000..95bb7f2
--- /dev/null
+++ b/cf/cf/cs-osf1.mc
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for OSF/1.
+#  It applies only to the Computer Science Division at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)cs-osf1.mc	8.5 (Berkeley) 6/3/97')
+OSTYPE(osf1)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/cs-solaris2.mc b/cf/cf/cs-solaris2.mc
new file mode 100644
index 0000000..515dd12
--- /dev/null
+++ b/cf/cf/cs-solaris2.mc
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for Solaris 2.x.
+#  It applies only to the Computer Science Division at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)cs-solaris2.mc	8.4 (Berkeley) 6/3/97')
+OSTYPE(solaris2)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/cs-sunos4.1.mc b/cf/cf/cs-sunos4.1.mc
new file mode 100644
index 0000000..70f134f
--- /dev/null
+++ b/cf/cf/cs-sunos4.1.mc
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for SunOS 4.1.x.
+#  It applies only to the Computer Science Division at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)cs-sunos4.1.mc	8.5 (Berkeley) 6/3/97')
+OSTYPE(sunos4.1)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/cs-ultrix4.mc b/cf/cf/cs-ultrix4.mc
new file mode 100644
index 0000000..8888be7
--- /dev/null
+++ b/cf/cf/cs-ultrix4.mc
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for Ultrix 4.x.
+#  It applies only to the Computer Science Division at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)cs-ultrix4.mc	8.5 (Berkeley) 6/3/97')
+OSTYPE(ultrix4)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/cyrusproto.mc b/cf/cf/cyrusproto.mc
new file mode 100644
index 0000000..c660898
--- /dev/null
+++ b/cf/cf/cyrusproto.mc
@@ -0,0 +1,41 @@
+divert(-1)
+#
+#	(C) Copyright 1995 by Carnegie Mellon University
+# 
+#                      All Rights Reserved
+# 
+# Permission to use, copy, modify, and distribute this software and its 
+# documentation for any purpose and without fee is hereby granted, 
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in 
+# supporting documentation, and that the name of CMU not be
+# used in advertising or publicity pertaining to distribution of the
+# software without specific, written prior permission.  
+# 
+# CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+# CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+# SOFTWARE.
+#
+#	Contributed to Berkeley by John Gardiner Myers <jgm+@CMU.EDU>.
+#
+#	This sample mc file is for a site that uses the Cyrus IMAP server
+#	exclusively for local mail.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)cyrusproto.mc	8.3 (Carnegie Mellon) @(#)cyrusproto.mc	8.3')
+define(`confBIND_OPTS',`-DNSRCH -DEFNAMES')
+FEATURE(nouucp)
+FEATURE(nocanonify)
+FEATURE(always_add_domain)
+MAILER(smtp)
+MAILER(cyrus)
+
+define(`confLOCAL_MAILER',`cyrus')
+
+LOCAL_RULE_0
+Rbb + $+ < @ $=w . >	$#cyrusbb $: $1
diff --git a/cf/cf/generic-bsd4.4.mc b/cf/cf/generic-bsd4.4.mc
new file mode 100644
index 0000000..25783a3
--- /dev/null
+++ b/cf/cf/generic-bsd4.4.mc
@@ -0,0 +1,49 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for 4.4 BSD-based systems,
+#  including 4.4-Lite, BSDi, NetBSD, and FreeBSD.
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-bsd4.4.mc	8.2 (Berkeley) 3/23/96')
+OSTYPE(bsd4.4)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/generic-hpux10.mc b/cf/cf/generic-hpux10.mc
new file mode 100644
index 0000000..48828eb
--- /dev/null
+++ b/cf/cf/generic-hpux10.mc
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for HP-UX 9.x.
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-hpux10.mc	8.3 (Berkeley) 3/23/96')
+OSTYPE(hpux10)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/generic-hpux9.mc b/cf/cf/generic-hpux9.mc
new file mode 100644
index 0000000..3c89e43
--- /dev/null
+++ b/cf/cf/generic-hpux9.mc
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for HP-UX 9.x.
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-hpux9.mc	8.3 (Berkeley) 3/23/96')
+OSTYPE(hpux9)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/generic-nextstep3.3.mc b/cf/cf/generic-nextstep3.3.mc
new file mode 100644
index 0000000..7383c0b
--- /dev/null
+++ b/cf/cf/generic-nextstep3.3.mc
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for NEXTSTEP 3.3 systems.
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-nextstep3.3.mc	8.2 (Berkeley) 3/23/96')
+OSTYPE(nextstep)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/generic-osf1.mc b/cf/cf/generic-osf1.mc
new file mode 100644
index 0000000..bb74d18
--- /dev/null
+++ b/cf/cf/generic-osf1.mc
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for OSF/1.
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-osf1.mc	8.3 (Berkeley) 3/23/96')
+OSTYPE(osf1)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/generic-solaris2.mc b/cf/cf/generic-solaris2.mc
new file mode 100644
index 0000000..21fab9f
--- /dev/null
+++ b/cf/cf/generic-solaris2.mc
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for SunOS 5.x (a.k.a. Solaris 2.x)
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-solaris2.mc	8.3 (Berkeley) 3/23/96')
+OSTYPE(solaris2)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/generic-sunos4.1.mc b/cf/cf/generic-sunos4.1.mc
new file mode 100644
index 0000000..eeff027
--- /dev/null
+++ b/cf/cf/generic-sunos4.1.mc
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for SunOS 4.1.x.
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-sunos4.1.mc	8.3 (Berkeley) 3/23/96')
+OSTYPE(sunos4.1)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/generic-ultrix4.mc b/cf/cf/generic-ultrix4.mc
new file mode 100644
index 0000000..dd30936
--- /dev/null
+++ b/cf/cf/generic-ultrix4.mc
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a generic configuration file for Ultrix 4.x.
+#  It has support for local and SMTP mail only.  If you want to
+#  customize it, copy it to a name appropriate for your environment
+#  and do the modifications there.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)generic-ultrix4.mc	8.3 (Berkeley) 3/23/96')
+OSTYPE(ultrix4)dnl
+DOMAIN(generic)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/huginn.cs.mc b/cf/cf/huginn.cs.mc
new file mode 100644
index 0000000..aad442b
--- /dev/null
+++ b/cf/cf/huginn.cs.mc
@@ -0,0 +1,64 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for a specific
+#  machine in the Computer Science Division at Berkeley, and should
+#  not be used elsewhere.   It is provided on the sendmail distribution
+#  as a sample only.
+#
+#  This file is for the backup CS Division mail server.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)huginn.cs.mc	8.7 (Berkeley) 3/23/96')
+OSTYPE(hpux9)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+MASQUERADE_AS(CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+
+LOCAL_CONFIG
+DDBerkeley.EDU
+
+# hosts for which we accept and forward mail (must be in .Berkeley.EDU)
+CF CS
+FF/etc/sendmail.cw
+
+LOCAL_RULE_0
+R< @ $=F . $D . > : $*		$@ $>7 $2		@here:... -> ...
+R$* $=O $* < @ $=F . $D . >	$@ $>7 $1 $2 $3		...@here -> ...
+
+R$* < @ $=F . $D . >		$#local $: $1		use UDB
diff --git a/cf/cf/knecht.mc b/cf/cf/knecht.mc
new file mode 100644
index 0000000..71ae12b
--- /dev/null
+++ b/cf/cf/knecht.mc
@@ -0,0 +1,144 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is specific to Eric's home machine.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)knecht.mc	8.15 (Berkeley) 10/20/97')
+OSTYPE(bsd4.4)dnl
+DOMAIN(generic)dnl
+define(`confFORWARD_PATH', `$z/.forward.$w:$z/.forward+$h:$z/.forward')dnl
+define(`confDEF_USER_ID', `mailnull')dnl
+define(`confHOST_STATUS_DIRECTORY', `.hoststat')dnl
+define(`confTO_ICONNECT', `10s')dnl
+define(`confCOPY_ERRORS_TO', `Postmaster')dnl
+define(`confTO_QUEUEWARN', `8h')dnl
+define(`confPRIVACY_FLAGS', ``authwarnings,noexpn,novrfy'')dnl
+define(`LOCAL_MAILER_FLAGS', `rmn9P')dnl
+FEATURE(virtusertable)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+
+LOCAL_CONFIG
+# domains that are not us but which we will relay
+FR-o /etc/sendmail.cR
+
+# domain override table to accept unresolvable/reject resolvable domains
+Kdomaincheck hash -o /etc/domaincheck
+
+
+LOCAL_RULESETS
+
+######################################################################
+###  LookUpDomain -- search for domain in domaincheck database
+###
+###	Parameters:
+###		<$1> -- key (domain name)
+###		<$2> -- default (what to return if not found in db)
+###		<$3> -- passthru (additional data passed through)
+######################################################################
+
+SLookUpDomain
+R<$+> <$+> <$*>		$: < $( domaincheck $1 $: ? $) > <$1> <$2> <$3>
+R<OK> <$+> <$+> <$*>	$@ <OK> < $3 >
+R<?> <$+.$+> <$+> <$*>	$@ $>LookUpDomain <. $2> <$3> <$4>
+R<?> <$+> <$+> <$*>	$@ <$2> <$3>
+R<$+> $*		$#error $: $1
+
+
+######################################################################
+###  LookUpAddress -- search for host address in domaincheck database
+###
+###	Parameters:
+###		<$1> -- key (dot quadded host address)
+###		<$2> -- default (what to return if not found in db)
+###		<$3> -- passthru (additional data passed through)
+######################################################################
+
+SLookUpAddress
+R<$+> <$+> <$*>		$: < $( domaincheck $1 $: ? $) > <$1> <$2> <$3>
+R<OK> <$+> <$+> <$*>	$@ <OK> < $3 >
+R<?> <$+.$-> <$+> <$*>	$@ $>LookUpAddress <$1> <$3> <$4>
+R<?> <$+> <$+> <$*>	$@ <$2> <$3>
+R<$+> $*		$#error $: $1
+
+######################################################################
+###  check_relay
+######################################################################
+
+Scheck_relay
+R$+ $| $+		$: $>LookUpDomain < $1 > <?> < $2 >
+R<?> < $+ >		$: $>LookUpAddress < $1 > <OK> <>
+
+######################################################################
+###  check_mail
+######################################################################
+
+Scheck_mail
+R<>			$@ <OK>
+R$*			$: <?> $>Parse0 $>3 $1		make domain canonical
+R<?> $* < @ $+ . > $*	$: <OK> $1 < @ $2 > $3		pick default tag
+R<?> $* < @ $+ > $*	$: <FAIL> $1 < @ $2 > $3	... OK or FAIL
+R<$+> $* < @ $+ > $*	$: $>LookUpDomain <$3> <$1> <>
+R<OK> $*		$@ <OK>
+R<FAIL> $*		$#error $: 451 Sender domain must resolve
+
+# handle case of no @domain on address
+R<?> $*			$: < ? $&{client_name} > $1
+R<?> $*			$@ <OK>				...local unqualed ok
+R<? $+> $*		$#error $: 550 Domain name required
+							...remote is not
+R<$+> $*		$#error $: $1			error from domaincheck
+
+######################################################################
+###  check_rcpt
+######################################################################
+
+Scheck_rcpt
+# anything terminating locally is ok
+R$*			$: $>Parse0 $>3 $1		strip local crud
+R$+ < @ $=w . >		$@ OK
+R$+ < @ $* $=R . >	$@ OK
+
+# anything originating locally is ok
+R$*			$: $(dequote "" $&{client_name} $)
+R$=w			$@ OK
+R$=R			$@ OK
+R$@			$@ OK
+
+# anything else is bogus
+R$*			$#error $: "550 Relaying Denied"
diff --git a/cf/cf/mail.cs.mc b/cf/cf/mail.cs.mc
new file mode 100644
index 0000000..02a3acf
--- /dev/null
+++ b/cf/cf/mail.cs.mc
@@ -0,0 +1,65 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for a specific
+#  machine in the Computer Science Division at Berkeley, and should
+#  not be used elsewhere.   It is provided on the sendmail distribution
+#  as a sample only.
+#
+#  This file is for the primary CS Division mail server.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)mail.cs.mc	8.10 (Berkeley) 3/23/96')
+OSTYPE(ultrix4)dnl
+DOMAIN(Berkeley.EDU)dnl
+MASQUERADE_AS(CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+define(`confUSERDB_SPEC', ``/usr/local/lib/users.cs.db,/usr/local/lib/users.eecs.db'')dnl
+
+LOCAL_CONFIG
+DDBerkeley.EDU
+
+# hosts for which we accept and forward mail (must be in .Berkeley.EDU)
+CF CS
+FF/etc/sendmail.cw
+
+LOCAL_RULE_0
+R< @ $=F . $D . > : $*		$@ $>7 $2		@here:... -> ...
+R$* $=O $* < @ $=F . $D . >	$@ $>7 $1 $2 $3		...@here -> ...
+
+R$* < @ $=F . $D . >		$#local $: $1		use UDB
diff --git a/cf/cf/mail.eecs.mc b/cf/cf/mail.eecs.mc
new file mode 100644
index 0000000..756f5dd
--- /dev/null
+++ b/cf/cf/mail.eecs.mc
@@ -0,0 +1,65 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for a specific
+#  machine in Electrical Engineering and Computer Sciences at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.
+#
+#  This file is for the primary EECS mail server.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)mail.eecs.mc	8.10 (Berkeley) 3/23/96')
+OSTYPE(ultrix4)dnl
+DOMAIN(EECS.Berkeley.EDU)dnl
+MASQUERADE_AS(EECS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+define(`confUSERDB_SPEC', `/usr/local/lib/users.eecs.db,/usr/local/lib/users.cs.db,/usr/local/lib/users.coe.db')dnl
+
+LOCAL_CONFIG
+DDBerkeley.EDU
+
+# hosts for which we accept and forward mail (must be in .Berkeley.EDU)
+CF EECS
+FF/etc/sendmail.cw
+
+LOCAL_RULE_0
+R< @ $=F . $D . > : $*		$@ $>7 $2		@here:... -> ...
+R$* $=O $* < @ $=F . $D . >	$@ $>7 $1 $2 $3		...@here -> ...
+
+R$* < @ $=F . $D . >		$#local $: $1		use UDB
diff --git a/cf/cf/mailspool.cs.mc b/cf/cf/mailspool.cs.mc
new file mode 100644
index 0000000..de0a7d7
--- /dev/null
+++ b/cf/cf/mailspool.cs.mc
@@ -0,0 +1,58 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for a specific
+#  machine in the Computer Science Division at Berkeley, and should
+#  not be used elsewhere.   It is provided on the sendmail distribution
+#  as a sample only.
+#
+#  This file is for our mail spool machine.  For a while we were using
+#  "root.machinename" instead of "root+machinename", so this is included
+#  for back compatibility.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)mailspool.cs.mc	8.4 (Berkeley) 3/23/96')
+OSTYPE(sunos4.1)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+
+LOCAL_CONFIG
+CDroot sys-custodian
+
+LOCAL_RULE_3
+R$=D . $+		$1 + $2
diff --git a/cf/cf/obj/generic-bsd4.4.cf b/cf/cf/obj/generic-bsd4.4.cf
new file mode 100644
index 0000000..94353f5
--- /dev/null
+++ b/cf/cf/obj/generic-bsd4.4.cf
@@ -0,0 +1,911 @@
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+######################################################################
+######################################################################
+#####
+#####		SENDMAIL CONFIGURATION FILE
+#####
+##### built by gshapiro@knecht.Sendmail.ORG on Fri Oct 24 15:54:31 PDT 1997
+##### in /home/knecht/a/eric/src/sendmail/cf/cf
+##### using ../ as configuration include directory
+#####
+######################################################################
+######################################################################
+
+#####  @(#)cfhead.m4	8.9 (Berkeley) 1/18/97  #####
+#####  @(#)cf.m4	8.24 (Berkeley) 8/16/95  #####
+#####  @(#)generic-bsd4.4.mc	8.2 (Berkeley) 3/23/96  #####
+
+#####  @(#)bsd4.4.m4	8.4 (Berkeley) 11/13/95  #####
+
+#####  @(#)generic.m4	8.3 (Berkeley) 3/24/96  #####
+
+#####  @(#)redirect.m4	8.5 (Berkeley) 8/17/96  #####
+
+
+
+
+#####  @(#)use_cw_file.m4	8.1 (Berkeley) 6/7/93  #####
+
+
+
+#####  @(#)proto.m4	8.151 (Berkeley) 7/31/97  #####
+
+
+# level 7 config file format
+V7/Berkeley
+
+##################
+#   local info   #
+##################
+
+Cwlocalhost
+# file containing names of hosts for which we receive email
+Fw/etc/sendmail.cw
+
+# my official domain name
+# ... define this only if sendmail cannot automatically determine your domain
+#Dj$w.Foo.COM
+
+
+CP.
+
+# "Smart" relay host (may be null)
+DS
+
+# place to which unknown users should be forwarded
+#Kuser user -m -a<>
+#DLname_of_luser_relay
+
+# operators that cannot be in local usernames (i.e., network indicators)
+CO @ % !
+
+# a class with just dot (for identifying canonical names)
+C..
+
+# a class with just a left bracket (for identifying domain literals)
+C[[
+
+# Mailer table (overriding domains)
+#Kmailertable dbm /etc/mailertable
+
+# Domain table (adding domains)
+#Kdomaintable dbm /etc/domaintable
+
+# Generics table (mapping outgoing addresses)
+#Kgenerics dbm /etc/genericstable
+
+# Virtual user table (maps incoming users)
+#Kvirtuser dbm /etc/virtusertable
+
+# who I send unqualified names to (null means deliver locally)
+DR
+
+# who gets all local email traffic ($R has precedence for unqualified names)
+DH
+
+# dequoting map
+Kdequote dequote
+
+# class E: names that should be exposed as from this host, even if we masquerade
+# class L: names that should be delivered locally, even if we have a relay
+# class M: domains that should be converted to $M
+#CL root
+CE root
+
+# who I masquerade as (null for no masquerading) (see also $=M)
+DM
+
+# my name for error messages
+DnMAILER-DAEMON
+
+
+CPREDIRECT
+
+# Configuration version number
+DZ8.8.8
+
+
+###############
+#   Options   #
+###############
+
+# strip message body to 7 bits on input?
+O SevenBitInput=False
+
+# 8-bit data handling
+O EightBitMode=pass8
+
+
+# wait for alias file rebuild (default units: minutes)
+O AliasWait=10
+
+# location of alias file
+O AliasFile=/etc/aliases
+
+# minimum number of free blocks on filesystem
+O MinFreeBlocks=100
+
+# maximum message size
+#O MaxMessageSize=1000000
+
+# substitution for space (blank) characters
+O BlankSub=.
+
+# avoid connecting to "expensive" mailers on initial submission?
+O HoldExpensive=False
+
+# checkpoint queue runs after every N successful deliveries
+#O CheckpointInterval=10
+
+# default delivery mode
+O DeliveryMode=background
+
+# automatically rebuild the alias database?
+#O AutoRebuildAliases
+
+# error message header/file
+#O ErrorHeader=/etc/sendmail.oE
+
+# error mode
+#O ErrorMode=print
+
+# save Unix-style "From_" lines at top of header?
+#O SaveFromLine
+
+# temporary file mode
+O TempFileMode=0600
+
+# match recipients against GECOS field?
+#O MatchGECOS
+
+# maximum hop count
+#O MaxHopCount=17
+
+# location of help file
+O HelpFile=/usr/share/misc/sendmail.hf
+
+# ignore dots as terminators in incoming messages?
+#O IgnoreDots
+
+# name resolver options
+#O ResolverOptions=+AAONLY
+
+# deliver MIME-encapsulated error messages?
+O SendMimeErrors=True
+
+# Forward file search path
+O ForwardPath=$z/.forward.$w:$z/.forward
+
+# open connection cache size
+O ConnectionCacheSize=2
+
+# open connection cache timeout
+O ConnectionCacheTimeout=5m
+
+# persistent host status directory
+#O HostStatusDirectory=.hoststat
+
+# single thread deliveries (requires HostStatusDirectory)?
+#O SingleThreadDelivery
+
+# use Errors-To: header?
+O UseErrorsTo=False
+
+# log level
+O LogLevel=9
+
+# send to me too, even in an alias expansion?
+#O MeToo
+
+# verify RHS in newaliases?
+O CheckAliases=False
+
+# default messages to old style headers if no special punctuation?
+O OldStyleHeaders=True
+
+# SMTP daemon options
+#O DaemonPortOptions=Port=esmtp
+
+# privacy flags
+O PrivacyOptions=authwarnings
+
+# who (if anyone) should get extra copies of error messages
+#O PostMasterCopy=Postmaster
+
+# slope of queue-only function
+#O QueueFactor=600000
+
+# queue directory
+O QueueDirectory=/var/spool/mqueue
+
+# timeouts (many of these)
+#O Timeout.initial=5m
+#O Timeout.connect=5m
+#O Timeout.iconnect=5m
+#O Timeout.helo=5m
+#O Timeout.mail=10m
+#O Timeout.rcpt=1h
+#O Timeout.datainit=5m
+#O Timeout.datablock=1h
+#O Timeout.datafinal=1h
+#O Timeout.rset=5m
+#O Timeout.quit=2m
+#O Timeout.misc=2m
+#O Timeout.command=1h
+#O Timeout.ident=30s
+#O Timeout.fileopen=60s
+O Timeout.queuereturn=5d
+#O Timeout.queuereturn.normal=5d
+#O Timeout.queuereturn.urgent=2d
+#O Timeout.queuereturn.non-urgent=7d
+O Timeout.queuewarn=4h
+#O Timeout.queuewarn.normal=4h
+#O Timeout.queuewarn.urgent=1h
+#O Timeout.queuewarn.non-urgent=12h
+#O Timeout.hoststatus=30m
+
+# should we not prune routes in route-addr syntax addresses?
+#O DontPruneRoutes
+
+# queue up everything before forking?
+O SuperSafe=True
+
+# status file
+O StatusFile=/var/log/sendmail.st
+
+# time zone handling:
+#  if undefined, use system default
+#  if defined but null, use TZ envariable passed in
+#  if defined and non-null, use that info
+#O TimeZoneSpec=
+
+# default UID (can be username or userid:groupid)
+O DefaultUser=1:1
+
+# list of locations of user database file (null means no lookup)
+#O UserDatabaseSpec=/etc/userdb
+
+# fallback MX host
+#O FallbackMXhost=fall.back.host.net
+
+# if we are the best MX host for a site, try it directly instead of config err
+#O TryNullMXList
+
+# load average at which we just queue messages
+#O QueueLA=8
+
+# load average at which we refuse connections
+#O RefuseLA=12
+
+# maximum number of children we allow at one time
+#O MaxDaemonChildren=12
+
+# maximum number of new connections per second
+#O ConnectionRateThrottle=3
+
+# work recipient factor
+#O RecipientFactor=30000
+
+# deliver each queued job in a separate process?
+#O ForkEachJob
+
+# work class factor
+#O ClassFactor=1800
+
+# work time factor
+#O RetryFactor=90000
+
+# shall we sort the queue by hostname first?
+#O QueueSortOrder=priority
+
+# minimum time in queue before retry
+#O MinQueueAge=30m
+
+# default character set
+#O DefaultCharSet=iso-8859-1
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+#O ServiceSwitchFile=/etc/service.switch
+
+# hosts file (normally /etc/hosts)
+#O HostsFile=/etc/hosts
+
+# dialup line delay on connection failure
+#O DialDelay=10s
+
+# action to take if there are no recipients in the message
+#O NoRecipientAction=add-to-undisclosed
+
+# chrooted environment for writing to files
+#O SafeFileEnvironment=/arch
+
+# are colons OK in addresses?
+#O ColonOkInAddr
+
+# how many jobs can you process in the queue?
+#O MaxQueueRunSize=10000
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+#O DontExpandCnames
+
+# SMTP initial login message (old $e macro)
+O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
+
+# UNIX initial From header format (old $l macro)
+O UnixFromLine=From $g  $d
+
+# delimiter (operator) characters (old $o macro)
+O OperatorChars=.:%@!^/[]+
+
+# shall I avoid calling initgroups(3) because of high NIS costs?
+#O DontInitGroups
+
+# are group-writable :include: and .forward files (un)trustworthy?
+#O UnsafeGroupWrites
+
+# where do errors that occur when sending errors get sent?
+#O DoubleBounceAddress
+
+# what user id do we assume for the majority of the processing?
+#O RunAsUser=sendmail
+
+###########################
+#   Message precedences   #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+#   Trusted users   #
+#####################
+
+# this is equivalent to setting class "t"
+#Ft/etc/sendmail.ct
+Troot
+Tdaemon
+Tuucp
+
+#########################
+#   Format of headers   #
+#########################
+
+H?P?Return-Path: <$g>
+HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
+	$.by $j ($v/$Z)$?r with $r$. id $i$?u
+	for $u; $|;
+	$.$b
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: $?x$x <$g>$|$g$.
+H?F?From: $?x$x <$g>$|$g$.
+H?x?Full-Name: $x
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+#
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+############################################
+###  Ruleset 3 -- Name Canonicalization  ###
+############################################
+S3
+
+# handle null input (translate to <@> special case)
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R@ $* <@>		$: @ $1				unmark @host:...
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:include: $* <@>	$: :include: $1			unmark :include:...
+R$* [ $* : $* ] <@>	$: $1 [ $2 : $3 ]		unmark IPv6 addrs
+R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# strip angle brackets -- note RFC733 heuristic to get innermost item
+R$*			$: < $1 >			housekeeping <>
+R$+ < $* >		   < $2 >			strip excess on left
+R< $* > $+		   < $1 >			strip excess on right
+R<>			$@ < @ >			MAIL FROM:<> case
+R< $+ >			$: $1				remove housekeeping <>
+
+# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
+R@ $+ , $+		@ $1 : $2			change all "," to ":"
+
+# localize and dispose of route-based addresses
+R@ $+ : $+		$@ $>96 < @$1 > : $2		handle <route-addr>
+
+# find focus for list syntax
+R $+ : $* ; @ $+	$@ $>96 $1 : $2 ; < @ $3 >	list syntax
+R $+ : $* ;		$@ $1 : $2;			list syntax
+
+# find focus for @ syntax addresses
+R$+ @ $+		$: $1 < @ $2 >			focus on domain
+R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
+R$+ < @ $+ >		$@ $>96 $1 < @ $2 >		already canonical
+
+# do some sanity checking
+R$* < @ $* : $* > $*	$1 < @ $2 $3 > $4		nix colons in addrs
+
+# convert old-style addresses to a domain-based address
+R$- ! $+		$@ $>96 $2 < @ $1 .UUCP >	resolve uucp names
+R$+ . $- ! $+		$@ $>96 $3 < @ $1 . $2 >		domain uucps
+R$+ ! $+		$@ $>96 $2 < @ $1 .UUCP >	uucp subdomains
+
+# if we have % signs, take the rightmost one
+R$* % $*		$1 @ $2				First make them all @s.
+R$* @ $* @ $*		$1 % $2 @ $3			Undo all but the last.
+R$* @ $*		$@ $>96 $1 < @ $2 >		Insert < > and finish
+
+# else we must be a local name
+R$*			$@ $>96 $1
+
+
+################################################
+###  Ruleset 96 -- bottom half of ruleset 3  ###
+################################################
+
+S96
+
+# handle special cases for local names
+R$* < @ localhost > $*		$: $1 < @ $j . > $2		no domain at all
+R$* < @ localhost . $m > $*	$: $1 < @ $j . > $2		local domain
+R$* < @ localhost . UUCP > $*	$: $1 < @ $j . > $2		.UUCP domain
+R$* < @ [ $+ ] > $*		$: $1 < @@ [ $2 ] > $3		mark [a.b.c.d]
+R$* < @@ $=w > $*		$: $1 < @ $j . > $3		self-literal
+R$* < @@ $+ > $*		$@ $1 < @ $2 > $3		canon IP addr
+
+# look up domains in the domain table
+#R$* < @ $+ > $* 		$: $1 < @ $(domaintable $2 $) > $3
+
+
+# if really UUCP, handle it immediately
+
+# try UUCP traffic as a local address
+R$* < @ $+ . UUCP > $*		$: $1 < @ $[ $2 $] . UUCP . > $3
+R$* < @ $+ . . UUCP . > $*		$@ $1 < @ $2 . > $3
+
+# pass to name server to make hostname canonical
+R$* < @ $* $~P > $*		$: $1 < @ $[ $2 $3 $] > $4
+
+# local host aliases and pseudo-domains are always canonical
+R$* < @ $=w > $*		$: $1 < @ $2 . > $3
+R$* < @ $j > $*			$: $1 < @ $j . > $2
+R$* < @ $=M > $*		$: $1 < @ $2 . > $3
+R$* < @ $* $=P > $*		$: $1 < @ $2 $3 . > $4
+R$* < @ $* . . > $*		$1 < @ $2 . > $3
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off possibly canonical name
+R$* < @ $+ . > $*	$1 < @ $2 > $3
+
+# eliminate internal code -- should never get this far!
+R$* < @ *LOCAL* > $*	$1 < @ $j > $2
+
+# externalize local domain info
+R$* < $+ > $*		$1 $2 $3			defocus
+R@ $+ : @ $+ : $+	@ $1 , @ $2 : $3		<route-addr> canonical
+R@ $*			$@ @ $1				... and exit
+
+# UUCP must always be presented in old form
+R$+ @ $- . UUCP		$2!$1				u@h.UUCP => h!u
+
+# delete duplicate local names
+R$+ % $=w @ $=w		$1 @ $2				u%host@host => u@host
+
+
+
+##############################################################
+###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
+###		   (used for recursive calls)		   ###
+##############################################################
+
+S97
+R$*			$: $>3 $1
+R$*			$@ $>0 $1
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*			$: $>Parse0 $1		initial parsing
+R$*			$: $>98 $1		handle local hacks
+R$*			$: $>Parse1 $1		final parsing
+
+SParse0
+R<@>			$#local $: <@>		special case error msgs
+R$* : $* ; <@>		$#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses"
+R<@ $+>			$#error $@ 5.1.1 $: "user address required"
+R$*			$: <> $1
+R<> $* < @ [ $+ ] > $*	$1 < @ [ $2 ] > $3
+R<> $* <$* : $* > $*	$#error $@ 5.1.1 $: "colon illegal in host name part"
+R<> $*			$1
+R$* < @ . $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+R$* < @ $* .. $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+
+# handle numeric address spec
+R$* < @ [ $+ ] > $*	$: $>98 $1 < @ [ $2 ] > $3	numeric internet spec
+R$* < @ [ $+ ] > $*	$#esmtp $@ [$2] $: $1 < @ [$2] > $3	still numeric: send
+
+# now delete the local info -- note $=O to find characters that cause forwarding
+R$* < @ > $*		$@ $>Parse0 $>3 $1		user@ => user
+R< @ $=w . > : $*	$@ $>Parse0 $>3 $2		@here:... -> ...
+R$- < @ $=w . >		$: $(dequote $1 $) < @ $2 . >	dequote "foo"@here
+R< @ $+ >		$#error $@ 5.1.1 $: "user address required"
+R$* $=O $* < @ $=w . >	$@ $>Parse0 $>3 $1 $2 $3	...@here -> ...
+
+SParse1
+# handle virtual users
+#R$+ < @ $=w . > 	$: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ < @ $+ . >	$: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+			$: $1
+#R< error : $- $+ > $* 	$#error $@ $( dequote $1 $) $: $2
+#R< $+ > $+ < @ $+ >	$: $>97 $1
+
+# short circuit local delivery so forwarded email works
+#R$+ . USENET < @ $=w . >	$#usenet $: $1		handle usenet specially
+R$=L < @ $=w . >	$#local $: @ $1		special local names
+R$+ < @ $=w . >		$#local $: $1			regular local name
+
+# not local -- try mailer table lookup
+#R$* <@ $+ > $*		$: < $2 > $1 < @ $2 > $3	extract host name
+#R< $+ . > $*		$: < $1 > $2			strip trailing dot
+#R< $+ > $*		$: < $(mailertable $1 $) > $2	lookup
+#R< $~[ : $+ > $* 	$>95 < $1 : $2 > $3		check -- resolved?
+#R< $+ > $*		$: $>90 <$1> $2			try domain
+
+# resolve remotely connected UUCP links (if any)
+
+# resolve fake top level domains by forwarding to other hosts
+
+
+
+# pass names that still have a host to a smarthost (if defined)
+R$* < @ $* > $*		$: $>95 < $S > $1 < @ $2 > $3	glue on smarthost name
+
+# deal with other remote names
+R$* < @$* > $*		$#esmtp $@ $2 $: $1 < @ $2 > $3		user@host.domain
+
+# if this is quoted, strip the quotes and try again
+R$+			$: $(dequote $1 $)		strip quotes
+R$+ $=O $+		$@ $>97 $1 $2 $3			try again
+
+# handle locally delivered names
+R$=L			$#local $: @ $1			special local names
+R$+			$#local $: $1			regular local names
+
+###########################################################################
+###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
+###########################################################################
+
+S5
+
+# deal with plussed users so aliases work nicely
+R$+ + *			$#local $@ $&h $: $1
+R$+ + $*		$#local $@ + $2 $: $1 + *
+
+# prepend an empty "forward host" on the front
+R$+			$: <> $1
+
+# send unrecognized local users to a relay host
+#R< > $+ 		$: < $L . > $( user $1 $)	look up user
+#R< $* > $+ <> $*	$: < > $2 $3			found; strip $L
+#R< $* . > $+		$: < $1 > $2			strip extra dot
+
+# see if we have a relay or a hub
+R< > $+			$: < $H > $1			try hub
+R< > $+			$: < $R > $1			try relay
+R< > $+			$: < > < $1 $(dequote "" $&h $) >	nope, restore +detail
+R< > < $+ + $* > $*	   < > < $1 > + $2 $3		find the user part
+R< > < $+ > + $*	$#local $@ $2 $: @ $1		strip the extra +
+R< > < $+ >		$@ $1				no +detail
+R$+			$: $1 $(dequote "" $&h $)	add +detail back in
+R< local : $* > $*	$: $>95 < local : $1 > $2	no host extension
+R< error : $* > $*	$: $>95 < error : $1 > $2	no host extension
+R< $- : $+ > $+		$: $>95 < $1 : $2 > $3 < @ $2 >
+R< $+ > $+		$@ $>95 < $1 > $2 < @ $1 >
+
+###################################################################
+###  Ruleset 90 -- try domain part of mailertable entry 	###
+###################################################################
+
+S90
+#R$* <$- . $+ > $*	$: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
+#R$* <$~[ : $+ > $*		$>95 < $2 : $3 > $4	check -- resolved?
+#R$* < . $+ > $* 		$@ $>90 $1 . <$2> $3	no -- strip & try again
+#R$* < $* > $*		$: < $(mailertable . $@ $1$2 $) > $3	try "."
+#R< $~[ : $+ > $*		$>95 < $1 : $2 > $3	"." found?
+#R< $* > $*			$@ $2			no mailertable match
+
+###################################################################
+###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple	###
+###################################################################
+
+S95
+R< > $*				$@ $1			strip off null relay
+R< error : $- $+ > $*		$#error $@ $( dequote $1 $) $: $2
+R< local : $* > $*		$>CanonLocal < $1 > $2
+R< $- : $+ @ $+ > $*<$*>$*	$# $1 $@ $3 $: $2<@$3>	use literal user
+R< $- : $+ > $*			$# $1 $@ $2 $: $3	try qualified mailer
+R< $=w > $*			$@ $2			delete local host
+R< $+ > $*			$#relay $@ $1 $: $2	use unqualified mailer
+
+###################################################################
+###  Ruleset CanonLocal -- canonify local: syntax		###
+###################################################################
+
+SCanonLocal
+# strip trailing dot from any host name that may appear
+R< $* > $* < @ $* . >		$: < $1 > $2 < @ $3 >
+
+# handle local: syntax -- use old user, either with or without host
+R< > $* < @ $* > $*		$#local $@ $1@$2 $: $1
+R< > $+				$#local $@ $1    $: $1
+
+# handle local:user@host syntax -- ignore host part
+R< $+ @ $+ > $* < @ $* >	$: < $1 > $3 < @ $4 >
+
+# handle local:user syntax
+R< $+ > $* <@ $* > $*		$#local $@ $2@$3 $: $1
+R< $+ > $* 			$#local $@ $2    $: $1
+
+###################################################################
+###  Ruleset 93 -- convert header names to masqueraded form	###
+###################################################################
+
+S93
+
+# handle generics database
+#R$+ < @ $=G . >	$: < $1@$2 > $1 < @ $2 . > @	mark
+#R$+ < @ *LOCAL* >	$: < $1@$j > $1 < @ *LOCAL* > @	mark
+#R< $+ > $+ < $* > @	$: < $(generics $1 $: $) > $2 < $3 >
+#R< > $+ < @ $+ > 	$: < $(generics $1 $: $) > $1 < @ $2 >
+#R< $* @ $* > $* < $* >	$@ $>3 $1 @ $2			found qualified
+#R< $+ > $* < $* >	$: $>3 $1 @ *LOCAL*		found unqualified
+#R< > $*			$: $1				not found
+
+# special case the users that should be exposed
+R$=E < @ *LOCAL* >	$@ $1 < @ $j . >		leave exposed
+R$=E < @ $=M . >	$@ $1 < @ $2 . >
+R$=E < @ $=w . >	$@ $1 < @ $2 . >
+
+# handle domain-specific masquerading
+R$* < @ $=M . > $*	$: $1 < @ $2 . @ $M > $3	convert masqueraded doms
+R$* < @ $=w . > $*	$: $1 < @ $2 . @ $M > $3
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . @ $M > $2
+R$* < @ $+ @ > $*	$: $1 < @ $2 > $3		$M is null
+R$* < @ $+ @ $+ > $*	$: $1 < @ $3 . > $4		$M is not null
+
+###################################################################
+###  Ruleset 94 -- convert envelope names to masqueraded form	###
+###################################################################
+
+S94
+#R$+			$@ $>93 $1
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . > $2
+
+###################################################################
+###  Ruleset 98 -- local part of ruleset zero (can be null)	###
+###################################################################
+
+S98
+
+# addresses sent to foo@host.REDIRECT will give a 551 error code
+R$* < @ $+ .REDIRECT. >		$: $1 < @ $2 . REDIRECT . > < ${opMode} >
+R$* < @ $+ .REDIRECT. > <i>	$: $1 < @ $2 . REDIRECT. >
+R$* < @ $+ .REDIRECT. > < $- >	$# error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>
+#
+######################################################################
+######################################################################
+#####
+#####			MAILER DEFINITIONS
+#####
+######################################################################
+######################################################################
+
+
+##################################################
+###   Local and Program Mailer specification   ###
+##################################################
+
+#####  @(#)local.m4	8.23 (Berkeley) 5/31/96  #####
+
+Mlocal,		P=/usr/libexec/mail.local, F=lsDFMAw5:/|@qrmn9, S=10/30, R=20/40,
+		T=DNS/RFC822/X-Unix,
+		A=mail -d $u
+Mprog,		P=/bin/sh, F=lsDFMoqeu9, S=10/30, R=20/40, D=$z:/,
+		T=X-Unix,
+		A=sh -c $u
+
+#
+#  Envelope sender rewriting
+#
+S10
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>94 $1		do masquerading
+
+#
+#  Envelope recipient rewriting
+#
+S20
+R$+ < @ $* >		$: $1			strip host part
+
+#
+#  Header sender rewriting
+#
+S30
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>93 $1		do masquerading
+
+#
+#  Header recipient rewriting
+#
+S40
+R$+			$: $>50 $1		add local domain if needed
+#R$*			$: $>93 $1		do all-masquerading
+
+#
+#  Common code to add local domain name (only if always-add-domain)
+#
+S50
+#R$* < @ $* > $* 	$@ $1 < @ $2 > $3		already fully qualified
+#R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+#####################################
+###   SMTP Mailer specification   ###
+#####################################
+
+#####  @(#)smtp.m4	8.33 (Berkeley) 7/9/96  #####
+
+Msmtp,		P=[IPC], F=mDFMuX, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mesmtp,		P=[IPC], F=mDFMuXa, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Msmtp8,		P=[IPC], F=mDFMuX8, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mrelay,		P=[IPC], F=mDFMuXa8, S=11/31, R=61, E=\r\n, L=2040,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+
+#
+#  envelope sender rewriting
+#
+S11
+R$+			$: $>51 $1			sender/recipient common
+R$* :; <@>		$@				list:; special case
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>94 $1			do masquerading
+
+
+#
+#  envelope recipient rewriting --
+#  also header recipient if not masquerading recipients
+#
+S21
+R$+			$: $>51 $1			sender/recipient common
+R$+			$: $>61 $1			qualify unqual'ed names
+
+
+#
+#  header sender and masquerading header recipient rewriting
+#
+S31
+R$+			$: $>51 $1			sender/recipient common
+R:; <@>			$@				list:; special case
+
+# do special header rewriting
+R$* <@> $*		$@ $1 <@> $2			pass null host through
+R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>93 $1			do masquerading
+
+
+#
+#  convert pseudo-domain addresses to real domain addresses
+#
+S51
+
+# pass <route-addr>s through
+R< @ $+ > $*		$@ < @ $1 > $2			resolve <route-addr>
+
+# output fake domains as user%fake@relay
+
+# do UUCP heuristics; note that these are shared with UUCP mailers
+R$+ < @ $+ .UUCP. >	$: < $2 ! > $1			convert to UUCP form
+R$+ < @ $* > $*		$@ $1 < @ $2 > $3		not UUCP form
+
+# leave these in .UUCP form to avoid further tampering
+R< $&h ! > $- ! $+	$@ $2 < @ $1 .UUCP. >
+R< $&h ! > $-.$+ ! $+	$@ $3 < @ $1.$2 >
+R< $&h ! > $+		$@ $1 < @ $&h .UUCP. >
+R< $+ ! > $+		$: $1 ! $2 < @ $Y >		use UUCP_RELAY
+R$+ < @ $+ : $+ >	$@ $1 < @ $3 >			strip mailer: part
+R$+ < @ >		$: $1 < @ *LOCAL* >		if no UUCP_RELAY
+
+
+#
+#  common sender and masquerading recipient rewriting
+#
+S61
+
+R$* < @ $* > $*		$@ $1 < @ $2 > $3		already fully qualified
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+
+#
+#  relay mailer header masquerading recipient rewriting
+#
+S71
+
+R$+			$: $>61 $1
+R$+			$: $>93 $1
diff --git a/cf/cf/obj/generic-hpux9.cf b/cf/cf/obj/generic-hpux9.cf
new file mode 100644
index 0000000..c240a5e
--- /dev/null
+++ b/cf/cf/obj/generic-hpux9.cf
@@ -0,0 +1,912 @@
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+######################################################################
+######################################################################
+#####
+#####		SENDMAIL CONFIGURATION FILE
+#####
+##### built by gshapiro@knecht.Sendmail.ORG on Fri Oct 24 15:54:31 PDT 1997
+##### in /home/knecht/a/eric/src/sendmail/cf/cf
+##### using ../ as configuration include directory
+#####
+######################################################################
+######################################################################
+
+#####  @(#)cfhead.m4	8.9 (Berkeley) 1/18/97  #####
+#####  @(#)cf.m4	8.24 (Berkeley) 8/16/95  #####
+#####  @(#)generic-hpux9.mc	8.3 (Berkeley) 3/23/96  #####
+
+#####  @(#)hpux9.m4	8.12 (Berkeley) 9/25/96  #####
+
+
+#####  @(#)generic.m4	8.3 (Berkeley) 3/24/96  #####
+
+#####  @(#)redirect.m4	8.5 (Berkeley) 8/17/96  #####
+
+
+
+
+#####  @(#)use_cw_file.m4	8.1 (Berkeley) 6/7/93  #####
+
+
+
+#####  @(#)proto.m4	8.151 (Berkeley) 7/31/97  #####
+
+
+# level 7 config file format
+V7/Berkeley
+
+##################
+#   local info   #
+##################
+
+Cwlocalhost
+# file containing names of hosts for which we receive email
+Fw/etc/sendmail.cw
+
+# my official domain name
+# ... define this only if sendmail cannot automatically determine your domain
+#Dj$w.Foo.COM
+
+
+CP.
+
+# "Smart" relay host (may be null)
+DS
+
+# place to which unknown users should be forwarded
+#Kuser user -m -a<>
+#DLname_of_luser_relay
+
+# operators that cannot be in local usernames (i.e., network indicators)
+CO @ % !
+
+# a class with just dot (for identifying canonical names)
+C..
+
+# a class with just a left bracket (for identifying domain literals)
+C[[
+
+# Mailer table (overriding domains)
+#Kmailertable dbm /etc/mailertable
+
+# Domain table (adding domains)
+#Kdomaintable dbm /etc/domaintable
+
+# Generics table (mapping outgoing addresses)
+#Kgenerics dbm /etc/genericstable
+
+# Virtual user table (maps incoming users)
+#Kvirtuser dbm /etc/virtusertable
+
+# who I send unqualified names to (null means deliver locally)
+DR
+
+# who gets all local email traffic ($R has precedence for unqualified names)
+DH
+
+# dequoting map
+Kdequote dequote
+
+# class E: names that should be exposed as from this host, even if we masquerade
+# class L: names that should be delivered locally, even if we have a relay
+# class M: domains that should be converted to $M
+#CL root
+CE root
+
+# who I masquerade as (null for no masquerading) (see also $=M)
+DM
+
+# my name for error messages
+DnMAILER-DAEMON
+
+
+CPREDIRECT
+
+# Configuration version number
+DZ8.8.8
+
+
+###############
+#   Options   #
+###############
+
+# strip message body to 7 bits on input?
+O SevenBitInput=False
+
+# 8-bit data handling
+O EightBitMode=pass8
+
+
+# wait for alias file rebuild (default units: minutes)
+O AliasWait=10
+
+# location of alias file
+O AliasFile=/usr/lib/aliases
+
+# minimum number of free blocks on filesystem
+O MinFreeBlocks=100
+
+# maximum message size
+#O MaxMessageSize=1000000
+
+# substitution for space (blank) characters
+O BlankSub=.
+
+# avoid connecting to "expensive" mailers on initial submission?
+O HoldExpensive=False
+
+# checkpoint queue runs after every N successful deliveries
+#O CheckpointInterval=10
+
+# default delivery mode
+O DeliveryMode=background
+
+# automatically rebuild the alias database?
+#O AutoRebuildAliases
+
+# error message header/file
+#O ErrorHeader=/etc/sendmail.oE
+
+# error mode
+#O ErrorMode=print
+
+# save Unix-style "From_" lines at top of header?
+#O SaveFromLine
+
+# temporary file mode
+O TempFileMode=0600
+
+# match recipients against GECOS field?
+#O MatchGECOS
+
+# maximum hop count
+#O MaxHopCount=17
+
+# location of help file
+O HelpFile=/usr/lib/sendmail.hf
+
+# ignore dots as terminators in incoming messages?
+#O IgnoreDots
+
+# name resolver options
+#O ResolverOptions=+AAONLY
+
+# deliver MIME-encapsulated error messages?
+O SendMimeErrors=True
+
+# Forward file search path
+O ForwardPath=$z/.forward.$w:$z/.forward
+
+# open connection cache size
+O ConnectionCacheSize=2
+
+# open connection cache timeout
+O ConnectionCacheTimeout=5m
+
+# persistent host status directory
+#O HostStatusDirectory=.hoststat
+
+# single thread deliveries (requires HostStatusDirectory)?
+#O SingleThreadDelivery
+
+# use Errors-To: header?
+O UseErrorsTo=False
+
+# log level
+O LogLevel=9
+
+# send to me too, even in an alias expansion?
+#O MeToo
+
+# verify RHS in newaliases?
+O CheckAliases=False
+
+# default messages to old style headers if no special punctuation?
+O OldStyleHeaders=True
+
+# SMTP daemon options
+#O DaemonPortOptions=Port=esmtp
+
+# privacy flags
+O PrivacyOptions=authwarnings
+
+# who (if anyone) should get extra copies of error messages
+#O PostMasterCopy=Postmaster
+
+# slope of queue-only function
+#O QueueFactor=600000
+
+# queue directory
+O QueueDirectory=/usr/spool/mqueue
+
+# timeouts (many of these)
+#O Timeout.initial=5m
+#O Timeout.connect=5m
+#O Timeout.iconnect=5m
+#O Timeout.helo=5m
+#O Timeout.mail=10m
+#O Timeout.rcpt=1h
+#O Timeout.datainit=5m
+#O Timeout.datablock=1h
+#O Timeout.datafinal=1h
+#O Timeout.rset=5m
+#O Timeout.quit=2m
+#O Timeout.misc=2m
+#O Timeout.command=1h
+#O Timeout.ident=30s
+#O Timeout.fileopen=60s
+O Timeout.queuereturn=5d
+#O Timeout.queuereturn.normal=5d
+#O Timeout.queuereturn.urgent=2d
+#O Timeout.queuereturn.non-urgent=7d
+O Timeout.queuewarn=4h
+#O Timeout.queuewarn.normal=4h
+#O Timeout.queuewarn.urgent=1h
+#O Timeout.queuewarn.non-urgent=12h
+#O Timeout.hoststatus=30m
+
+# should we not prune routes in route-addr syntax addresses?
+#O DontPruneRoutes
+
+# queue up everything before forking?
+O SuperSafe=True
+
+# status file
+O StatusFile=/usr/lib/sendmail.st
+
+# time zone handling:
+#  if undefined, use system default
+#  if defined but null, use TZ envariable passed in
+#  if defined and non-null, use that info
+O TimeZoneSpec=
+
+# default UID (can be username or userid:groupid)
+O DefaultUser=1:1
+
+# list of locations of user database file (null means no lookup)
+#O UserDatabaseSpec=/etc/userdb
+
+# fallback MX host
+#O FallbackMXhost=fall.back.host.net
+
+# if we are the best MX host for a site, try it directly instead of config err
+#O TryNullMXList
+
+# load average at which we just queue messages
+#O QueueLA=8
+
+# load average at which we refuse connections
+#O RefuseLA=12
+
+# maximum number of children we allow at one time
+#O MaxDaemonChildren=12
+
+# maximum number of new connections per second
+#O ConnectionRateThrottle=3
+
+# work recipient factor
+#O RecipientFactor=30000
+
+# deliver each queued job in a separate process?
+#O ForkEachJob
+
+# work class factor
+#O ClassFactor=1800
+
+# work time factor
+#O RetryFactor=90000
+
+# shall we sort the queue by hostname first?
+#O QueueSortOrder=priority
+
+# minimum time in queue before retry
+#O MinQueueAge=30m
+
+# default character set
+#O DefaultCharSet=iso-8859-1
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+#O ServiceSwitchFile=/etc/service.switch
+
+# hosts file (normally /etc/hosts)
+#O HostsFile=/etc/hosts
+
+# dialup line delay on connection failure
+#O DialDelay=10s
+
+# action to take if there are no recipients in the message
+#O NoRecipientAction=add-to-undisclosed
+
+# chrooted environment for writing to files
+#O SafeFileEnvironment=/arch
+
+# are colons OK in addresses?
+#O ColonOkInAddr
+
+# how many jobs can you process in the queue?
+#O MaxQueueRunSize=10000
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+#O DontExpandCnames
+
+# SMTP initial login message (old $e macro)
+O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
+
+# UNIX initial From header format (old $l macro)
+O UnixFromLine=From $g  $d
+
+# delimiter (operator) characters (old $o macro)
+O OperatorChars=.:%@!^/[]+
+
+# shall I avoid calling initgroups(3) because of high NIS costs?
+#O DontInitGroups
+
+# are group-writable :include: and .forward files (un)trustworthy?
+#O UnsafeGroupWrites
+
+# where do errors that occur when sending errors get sent?
+#O DoubleBounceAddress
+
+# what user id do we assume for the majority of the processing?
+#O RunAsUser=sendmail
+
+###########################
+#   Message precedences   #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+#   Trusted users   #
+#####################
+
+# this is equivalent to setting class "t"
+#Ft/etc/sendmail.ct
+Troot
+Tdaemon
+Tuucp
+
+#########################
+#   Format of headers   #
+#########################
+
+H?P?Return-Path: <$g>
+HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
+	$.by $j ($v/$Z)$?r with $r$. id $i$?u
+	for $u; $|;
+	$.$b
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: $?x$x <$g>$|$g$.
+H?F?From: $?x$x <$g>$|$g$.
+H?x?Full-Name: $x
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+#
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+############################################
+###  Ruleset 3 -- Name Canonicalization  ###
+############################################
+S3
+
+# handle null input (translate to <@> special case)
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R@ $* <@>		$: @ $1				unmark @host:...
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:include: $* <@>	$: :include: $1			unmark :include:...
+R$* [ $* : $* ] <@>	$: $1 [ $2 : $3 ]		unmark IPv6 addrs
+R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# strip angle brackets -- note RFC733 heuristic to get innermost item
+R$*			$: < $1 >			housekeeping <>
+R$+ < $* >		   < $2 >			strip excess on left
+R< $* > $+		   < $1 >			strip excess on right
+R<>			$@ < @ >			MAIL FROM:<> case
+R< $+ >			$: $1				remove housekeeping <>
+
+# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
+R@ $+ , $+		@ $1 : $2			change all "," to ":"
+
+# localize and dispose of route-based addresses
+R@ $+ : $+		$@ $>96 < @$1 > : $2		handle <route-addr>
+
+# find focus for list syntax
+R $+ : $* ; @ $+	$@ $>96 $1 : $2 ; < @ $3 >	list syntax
+R $+ : $* ;		$@ $1 : $2;			list syntax
+
+# find focus for @ syntax addresses
+R$+ @ $+		$: $1 < @ $2 >			focus on domain
+R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
+R$+ < @ $+ >		$@ $>96 $1 < @ $2 >		already canonical
+
+# do some sanity checking
+R$* < @ $* : $* > $*	$1 < @ $2 $3 > $4		nix colons in addrs
+
+# convert old-style addresses to a domain-based address
+R$- ! $+		$@ $>96 $2 < @ $1 .UUCP >	resolve uucp names
+R$+ . $- ! $+		$@ $>96 $3 < @ $1 . $2 >		domain uucps
+R$+ ! $+		$@ $>96 $2 < @ $1 .UUCP >	uucp subdomains
+
+# if we have % signs, take the rightmost one
+R$* % $*		$1 @ $2				First make them all @s.
+R$* @ $* @ $*		$1 % $2 @ $3			Undo all but the last.
+R$* @ $*		$@ $>96 $1 < @ $2 >		Insert < > and finish
+
+# else we must be a local name
+R$*			$@ $>96 $1
+
+
+################################################
+###  Ruleset 96 -- bottom half of ruleset 3  ###
+################################################
+
+S96
+
+# handle special cases for local names
+R$* < @ localhost > $*		$: $1 < @ $j . > $2		no domain at all
+R$* < @ localhost . $m > $*	$: $1 < @ $j . > $2		local domain
+R$* < @ localhost . UUCP > $*	$: $1 < @ $j . > $2		.UUCP domain
+R$* < @ [ $+ ] > $*		$: $1 < @@ [ $2 ] > $3		mark [a.b.c.d]
+R$* < @@ $=w > $*		$: $1 < @ $j . > $3		self-literal
+R$* < @@ $+ > $*		$@ $1 < @ $2 > $3		canon IP addr
+
+# look up domains in the domain table
+#R$* < @ $+ > $* 		$: $1 < @ $(domaintable $2 $) > $3
+
+
+# if really UUCP, handle it immediately
+
+# try UUCP traffic as a local address
+R$* < @ $+ . UUCP > $*		$: $1 < @ $[ $2 $] . UUCP . > $3
+R$* < @ $+ . . UUCP . > $*		$@ $1 < @ $2 . > $3
+
+# pass to name server to make hostname canonical
+R$* < @ $* $~P > $*		$: $1 < @ $[ $2 $3 $] > $4
+
+# local host aliases and pseudo-domains are always canonical
+R$* < @ $=w > $*		$: $1 < @ $2 . > $3
+R$* < @ $j > $*			$: $1 < @ $j . > $2
+R$* < @ $=M > $*		$: $1 < @ $2 . > $3
+R$* < @ $* $=P > $*		$: $1 < @ $2 $3 . > $4
+R$* < @ $* . . > $*		$1 < @ $2 . > $3
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off possibly canonical name
+R$* < @ $+ . > $*	$1 < @ $2 > $3
+
+# eliminate internal code -- should never get this far!
+R$* < @ *LOCAL* > $*	$1 < @ $j > $2
+
+# externalize local domain info
+R$* < $+ > $*		$1 $2 $3			defocus
+R@ $+ : @ $+ : $+	@ $1 , @ $2 : $3		<route-addr> canonical
+R@ $*			$@ @ $1				... and exit
+
+# UUCP must always be presented in old form
+R$+ @ $- . UUCP		$2!$1				u@h.UUCP => h!u
+
+# delete duplicate local names
+R$+ % $=w @ $=w		$1 @ $2				u%host@host => u@host
+
+
+
+##############################################################
+###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
+###		   (used for recursive calls)		   ###
+##############################################################
+
+S97
+R$*			$: $>3 $1
+R$*			$@ $>0 $1
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*			$: $>Parse0 $1		initial parsing
+R$*			$: $>98 $1		handle local hacks
+R$*			$: $>Parse1 $1		final parsing
+
+SParse0
+R<@>			$#local $: <@>		special case error msgs
+R$* : $* ; <@>		$#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses"
+R<@ $+>			$#error $@ 5.1.1 $: "user address required"
+R$*			$: <> $1
+R<> $* < @ [ $+ ] > $*	$1 < @ [ $2 ] > $3
+R<> $* <$* : $* > $*	$#error $@ 5.1.1 $: "colon illegal in host name part"
+R<> $*			$1
+R$* < @ . $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+R$* < @ $* .. $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+
+# handle numeric address spec
+R$* < @ [ $+ ] > $*	$: $>98 $1 < @ [ $2 ] > $3	numeric internet spec
+R$* < @ [ $+ ] > $*	$#esmtp $@ [$2] $: $1 < @ [$2] > $3	still numeric: send
+
+# now delete the local info -- note $=O to find characters that cause forwarding
+R$* < @ > $*		$@ $>Parse0 $>3 $1		user@ => user
+R< @ $=w . > : $*	$@ $>Parse0 $>3 $2		@here:... -> ...
+R$- < @ $=w . >		$: $(dequote $1 $) < @ $2 . >	dequote "foo"@here
+R< @ $+ >		$#error $@ 5.1.1 $: "user address required"
+R$* $=O $* < @ $=w . >	$@ $>Parse0 $>3 $1 $2 $3	...@here -> ...
+
+SParse1
+# handle virtual users
+#R$+ < @ $=w . > 	$: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ < @ $+ . >	$: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+			$: $1
+#R< error : $- $+ > $* 	$#error $@ $( dequote $1 $) $: $2
+#R< $+ > $+ < @ $+ >	$: $>97 $1
+
+# short circuit local delivery so forwarded email works
+#R$+ . USENET < @ $=w . >	$#usenet $: $1		handle usenet specially
+R$=L < @ $=w . >	$#local $: @ $1		special local names
+R$+ < @ $=w . >		$#local $: $1			regular local name
+
+# not local -- try mailer table lookup
+#R$* <@ $+ > $*		$: < $2 > $1 < @ $2 > $3	extract host name
+#R< $+ . > $*		$: < $1 > $2			strip trailing dot
+#R< $+ > $*		$: < $(mailertable $1 $) > $2	lookup
+#R< $~[ : $+ > $* 	$>95 < $1 : $2 > $3		check -- resolved?
+#R< $+ > $*		$: $>90 <$1> $2			try domain
+
+# resolve remotely connected UUCP links (if any)
+
+# resolve fake top level domains by forwarding to other hosts
+
+
+
+# pass names that still have a host to a smarthost (if defined)
+R$* < @ $* > $*		$: $>95 < $S > $1 < @ $2 > $3	glue on smarthost name
+
+# deal with other remote names
+R$* < @$* > $*		$#esmtp $@ $2 $: $1 < @ $2 > $3		user@host.domain
+
+# if this is quoted, strip the quotes and try again
+R$+			$: $(dequote $1 $)		strip quotes
+R$+ $=O $+		$@ $>97 $1 $2 $3			try again
+
+# handle locally delivered names
+R$=L			$#local $: @ $1			special local names
+R$+			$#local $: $1			regular local names
+
+###########################################################################
+###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
+###########################################################################
+
+S5
+
+# deal with plussed users so aliases work nicely
+R$+ + *			$#local $@ $&h $: $1
+R$+ + $*		$#local $@ + $2 $: $1 + *
+
+# prepend an empty "forward host" on the front
+R$+			$: <> $1
+
+# send unrecognized local users to a relay host
+#R< > $+ 		$: < $L . > $( user $1 $)	look up user
+#R< $* > $+ <> $*	$: < > $2 $3			found; strip $L
+#R< $* . > $+		$: < $1 > $2			strip extra dot
+
+# see if we have a relay or a hub
+R< > $+			$: < $H > $1			try hub
+R< > $+			$: < $R > $1			try relay
+R< > $+			$: < > < $1 $(dequote "" $&h $) >	nope, restore +detail
+R< > < $+ + $* > $*	   < > < $1 > + $2 $3		find the user part
+R< > < $+ > + $*	$#local $@ $2 $: @ $1		strip the extra +
+R< > < $+ >		$@ $1				no +detail
+R$+			$: $1 $(dequote "" $&h $)	add +detail back in
+R< local : $* > $*	$: $>95 < local : $1 > $2	no host extension
+R< error : $* > $*	$: $>95 < error : $1 > $2	no host extension
+R< $- : $+ > $+		$: $>95 < $1 : $2 > $3 < @ $2 >
+R< $+ > $+		$@ $>95 < $1 > $2 < @ $1 >
+
+###################################################################
+###  Ruleset 90 -- try domain part of mailertable entry 	###
+###################################################################
+
+S90
+#R$* <$- . $+ > $*	$: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
+#R$* <$~[ : $+ > $*		$>95 < $2 : $3 > $4	check -- resolved?
+#R$* < . $+ > $* 		$@ $>90 $1 . <$2> $3	no -- strip & try again
+#R$* < $* > $*		$: < $(mailertable . $@ $1$2 $) > $3	try "."
+#R< $~[ : $+ > $*		$>95 < $1 : $2 > $3	"." found?
+#R< $* > $*			$@ $2			no mailertable match
+
+###################################################################
+###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple	###
+###################################################################
+
+S95
+R< > $*				$@ $1			strip off null relay
+R< error : $- $+ > $*		$#error $@ $( dequote $1 $) $: $2
+R< local : $* > $*		$>CanonLocal < $1 > $2
+R< $- : $+ @ $+ > $*<$*>$*	$# $1 $@ $3 $: $2<@$3>	use literal user
+R< $- : $+ > $*			$# $1 $@ $2 $: $3	try qualified mailer
+R< $=w > $*			$@ $2			delete local host
+R< $+ > $*			$#relay $@ $1 $: $2	use unqualified mailer
+
+###################################################################
+###  Ruleset CanonLocal -- canonify local: syntax		###
+###################################################################
+
+SCanonLocal
+# strip trailing dot from any host name that may appear
+R< $* > $* < @ $* . >		$: < $1 > $2 < @ $3 >
+
+# handle local: syntax -- use old user, either with or without host
+R< > $* < @ $* > $*		$#local $@ $1@$2 $: $1
+R< > $+				$#local $@ $1    $: $1
+
+# handle local:user@host syntax -- ignore host part
+R< $+ @ $+ > $* < @ $* >	$: < $1 > $3 < @ $4 >
+
+# handle local:user syntax
+R< $+ > $* <@ $* > $*		$#local $@ $2@$3 $: $1
+R< $+ > $* 			$#local $@ $2    $: $1
+
+###################################################################
+###  Ruleset 93 -- convert header names to masqueraded form	###
+###################################################################
+
+S93
+
+# handle generics database
+#R$+ < @ $=G . >	$: < $1@$2 > $1 < @ $2 . > @	mark
+#R$+ < @ *LOCAL* >	$: < $1@$j > $1 < @ *LOCAL* > @	mark
+#R< $+ > $+ < $* > @	$: < $(generics $1 $: $) > $2 < $3 >
+#R< > $+ < @ $+ > 	$: < $(generics $1 $: $) > $1 < @ $2 >
+#R< $* @ $* > $* < $* >	$@ $>3 $1 @ $2			found qualified
+#R< $+ > $* < $* >	$: $>3 $1 @ *LOCAL*		found unqualified
+#R< > $*			$: $1				not found
+
+# special case the users that should be exposed
+R$=E < @ *LOCAL* >	$@ $1 < @ $j . >		leave exposed
+R$=E < @ $=M . >	$@ $1 < @ $2 . >
+R$=E < @ $=w . >	$@ $1 < @ $2 . >
+
+# handle domain-specific masquerading
+R$* < @ $=M . > $*	$: $1 < @ $2 . @ $M > $3	convert masqueraded doms
+R$* < @ $=w . > $*	$: $1 < @ $2 . @ $M > $3
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . @ $M > $2
+R$* < @ $+ @ > $*	$: $1 < @ $2 > $3		$M is null
+R$* < @ $+ @ $+ > $*	$: $1 < @ $3 . > $4		$M is not null
+
+###################################################################
+###  Ruleset 94 -- convert envelope names to masqueraded form	###
+###################################################################
+
+S94
+#R$+			$@ $>93 $1
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . > $2
+
+###################################################################
+###  Ruleset 98 -- local part of ruleset zero (can be null)	###
+###################################################################
+
+S98
+
+# addresses sent to foo@host.REDIRECT will give a 551 error code
+R$* < @ $+ .REDIRECT. >		$: $1 < @ $2 . REDIRECT . > < ${opMode} >
+R$* < @ $+ .REDIRECT. > <i>	$: $1 < @ $2 . REDIRECT. >
+R$* < @ $+ .REDIRECT. > < $- >	$# error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>
+#
+######################################################################
+######################################################################
+#####
+#####			MAILER DEFINITIONS
+#####
+######################################################################
+######################################################################
+
+
+##################################################
+###   Local and Program Mailer specification   ###
+##################################################
+
+#####  @(#)local.m4	8.23 (Berkeley) 5/31/96  #####
+
+Mlocal,		P=/bin/rmail, F=lsDFMAw5:/|@qm9, S=10/30, R=20/40,
+		T=DNS/RFC822/X-Unix,
+		A=rmail -d $u
+Mprog,		P=/bin/sh, F=lsDFMoqeu9, S=10/30, R=20/40, D=$z:/,
+		T=X-Unix,
+		A=sh -c $u
+
+#
+#  Envelope sender rewriting
+#
+S10
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>94 $1		do masquerading
+
+#
+#  Envelope recipient rewriting
+#
+S20
+R$+ < @ $* >		$: $1			strip host part
+
+#
+#  Header sender rewriting
+#
+S30
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>93 $1		do masquerading
+
+#
+#  Header recipient rewriting
+#
+S40
+R$+			$: $>50 $1		add local domain if needed
+#R$*			$: $>93 $1		do all-masquerading
+
+#
+#  Common code to add local domain name (only if always-add-domain)
+#
+S50
+#R$* < @ $* > $* 	$@ $1 < @ $2 > $3		already fully qualified
+#R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+#####################################
+###   SMTP Mailer specification   ###
+#####################################
+
+#####  @(#)smtp.m4	8.33 (Berkeley) 7/9/96  #####
+
+Msmtp,		P=[IPC], F=mDFMuX, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mesmtp,		P=[IPC], F=mDFMuXa, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Msmtp8,		P=[IPC], F=mDFMuX8, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mrelay,		P=[IPC], F=mDFMuXa8, S=11/31, R=61, E=\r\n, L=2040,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+
+#
+#  envelope sender rewriting
+#
+S11
+R$+			$: $>51 $1			sender/recipient common
+R$* :; <@>		$@				list:; special case
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>94 $1			do masquerading
+
+
+#
+#  envelope recipient rewriting --
+#  also header recipient if not masquerading recipients
+#
+S21
+R$+			$: $>51 $1			sender/recipient common
+R$+			$: $>61 $1			qualify unqual'ed names
+
+
+#
+#  header sender and masquerading header recipient rewriting
+#
+S31
+R$+			$: $>51 $1			sender/recipient common
+R:; <@>			$@				list:; special case
+
+# do special header rewriting
+R$* <@> $*		$@ $1 <@> $2			pass null host through
+R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>93 $1			do masquerading
+
+
+#
+#  convert pseudo-domain addresses to real domain addresses
+#
+S51
+
+# pass <route-addr>s through
+R< @ $+ > $*		$@ < @ $1 > $2			resolve <route-addr>
+
+# output fake domains as user%fake@relay
+
+# do UUCP heuristics; note that these are shared with UUCP mailers
+R$+ < @ $+ .UUCP. >	$: < $2 ! > $1			convert to UUCP form
+R$+ < @ $* > $*		$@ $1 < @ $2 > $3		not UUCP form
+
+# leave these in .UUCP form to avoid further tampering
+R< $&h ! > $- ! $+	$@ $2 < @ $1 .UUCP. >
+R< $&h ! > $-.$+ ! $+	$@ $3 < @ $1.$2 >
+R< $&h ! > $+		$@ $1 < @ $&h .UUCP. >
+R< $+ ! > $+		$: $1 ! $2 < @ $Y >		use UUCP_RELAY
+R$+ < @ $+ : $+ >	$@ $1 < @ $3 >			strip mailer: part
+R$+ < @ >		$: $1 < @ *LOCAL* >		if no UUCP_RELAY
+
+
+#
+#  common sender and masquerading recipient rewriting
+#
+S61
+
+R$* < @ $* > $*		$@ $1 < @ $2 > $3		already fully qualified
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+
+#
+#  relay mailer header masquerading recipient rewriting
+#
+S71
+
+R$+			$: $>61 $1
+R$+			$: $>93 $1
diff --git a/cf/cf/obj/generic-osf1.cf b/cf/cf/obj/generic-osf1.cf
new file mode 100644
index 0000000..001c4bf
--- /dev/null
+++ b/cf/cf/obj/generic-osf1.cf
@@ -0,0 +1,911 @@
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+######################################################################
+######################################################################
+#####
+#####		SENDMAIL CONFIGURATION FILE
+#####
+##### built by gshapiro@knecht.Sendmail.ORG on Fri Oct 24 15:54:32 PDT 1997
+##### in /home/knecht/a/eric/src/sendmail/cf/cf
+##### using ../ as configuration include directory
+#####
+######################################################################
+######################################################################
+
+#####  @(#)cfhead.m4	8.9 (Berkeley) 1/18/97  #####
+#####  @(#)cf.m4	8.24 (Berkeley) 8/16/95  #####
+#####  @(#)generic-osf1.mc	8.3 (Berkeley) 3/23/96  #####
+
+#####  @(#)osf1.m4	8.4 (Berkeley) 9/25/96  #####
+
+#####  @(#)generic.m4	8.3 (Berkeley) 3/24/96  #####
+
+#####  @(#)redirect.m4	8.5 (Berkeley) 8/17/96  #####
+
+
+
+
+#####  @(#)use_cw_file.m4	8.1 (Berkeley) 6/7/93  #####
+
+
+
+#####  @(#)proto.m4	8.151 (Berkeley) 7/31/97  #####
+
+
+# level 7 config file format
+V7/Berkeley
+
+##################
+#   local info   #
+##################
+
+Cwlocalhost
+# file containing names of hosts for which we receive email
+Fw/etc/sendmail.cw
+
+# my official domain name
+# ... define this only if sendmail cannot automatically determine your domain
+#Dj$w.Foo.COM
+
+
+CP.
+
+# "Smart" relay host (may be null)
+DS
+
+# place to which unknown users should be forwarded
+#Kuser user -m -a<>
+#DLname_of_luser_relay
+
+# operators that cannot be in local usernames (i.e., network indicators)
+CO @ % !
+
+# a class with just dot (for identifying canonical names)
+C..
+
+# a class with just a left bracket (for identifying domain literals)
+C[[
+
+# Mailer table (overriding domains)
+#Kmailertable dbm /etc/mailertable
+
+# Domain table (adding domains)
+#Kdomaintable dbm /etc/domaintable
+
+# Generics table (mapping outgoing addresses)
+#Kgenerics dbm /etc/genericstable
+
+# Virtual user table (maps incoming users)
+#Kvirtuser dbm /etc/virtusertable
+
+# who I send unqualified names to (null means deliver locally)
+DR
+
+# who gets all local email traffic ($R has precedence for unqualified names)
+DH
+
+# dequoting map
+Kdequote dequote
+
+# class E: names that should be exposed as from this host, even if we masquerade
+# class L: names that should be delivered locally, even if we have a relay
+# class M: domains that should be converted to $M
+#CL root
+CE root
+
+# who I masquerade as (null for no masquerading) (see also $=M)
+DM
+
+# my name for error messages
+DnMAILER-DAEMON
+
+
+CPREDIRECT
+
+# Configuration version number
+DZ8.8.8
+
+
+###############
+#   Options   #
+###############
+
+# strip message body to 7 bits on input?
+O SevenBitInput=False
+
+# 8-bit data handling
+O EightBitMode=pass8
+
+
+# wait for alias file rebuild (default units: minutes)
+O AliasWait=10
+
+# location of alias file
+O AliasFile=/usr/adm/sendmail/aliases
+
+# minimum number of free blocks on filesystem
+O MinFreeBlocks=100
+
+# maximum message size
+#O MaxMessageSize=1000000
+
+# substitution for space (blank) characters
+O BlankSub=.
+
+# avoid connecting to "expensive" mailers on initial submission?
+O HoldExpensive=False
+
+# checkpoint queue runs after every N successful deliveries
+#O CheckpointInterval=10
+
+# default delivery mode
+O DeliveryMode=background
+
+# automatically rebuild the alias database?
+#O AutoRebuildAliases
+
+# error message header/file
+#O ErrorHeader=/etc/sendmail.oE
+
+# error mode
+#O ErrorMode=print
+
+# save Unix-style "From_" lines at top of header?
+#O SaveFromLine
+
+# temporary file mode
+O TempFileMode=0600
+
+# match recipients against GECOS field?
+#O MatchGECOS
+
+# maximum hop count
+#O MaxHopCount=17
+
+# location of help file
+O HelpFile=/usr/share/lib/sendmail.hf
+
+# ignore dots as terminators in incoming messages?
+#O IgnoreDots
+
+# name resolver options
+#O ResolverOptions=+AAONLY
+
+# deliver MIME-encapsulated error messages?
+O SendMimeErrors=True
+
+# Forward file search path
+O ForwardPath=$z/.forward.$w:$z/.forward
+
+# open connection cache size
+O ConnectionCacheSize=2
+
+# open connection cache timeout
+O ConnectionCacheTimeout=5m
+
+# persistent host status directory
+#O HostStatusDirectory=.hoststat
+
+# single thread deliveries (requires HostStatusDirectory)?
+#O SingleThreadDelivery
+
+# use Errors-To: header?
+O UseErrorsTo=False
+
+# log level
+O LogLevel=9
+
+# send to me too, even in an alias expansion?
+#O MeToo
+
+# verify RHS in newaliases?
+O CheckAliases=False
+
+# default messages to old style headers if no special punctuation?
+O OldStyleHeaders=True
+
+# SMTP daemon options
+#O DaemonPortOptions=Port=esmtp
+
+# privacy flags
+O PrivacyOptions=authwarnings
+
+# who (if anyone) should get extra copies of error messages
+#O PostMasterCopy=Postmaster
+
+# slope of queue-only function
+#O QueueFactor=600000
+
+# queue directory
+O QueueDirectory=/var/spool/mqueue
+
+# timeouts (many of these)
+#O Timeout.initial=5m
+#O Timeout.connect=5m
+#O Timeout.iconnect=5m
+#O Timeout.helo=5m
+#O Timeout.mail=10m
+#O Timeout.rcpt=1h
+#O Timeout.datainit=5m
+#O Timeout.datablock=1h
+#O Timeout.datafinal=1h
+#O Timeout.rset=5m
+#O Timeout.quit=2m
+#O Timeout.misc=2m
+#O Timeout.command=1h
+#O Timeout.ident=30s
+#O Timeout.fileopen=60s
+O Timeout.queuereturn=5d
+#O Timeout.queuereturn.normal=5d
+#O Timeout.queuereturn.urgent=2d
+#O Timeout.queuereturn.non-urgent=7d
+O Timeout.queuewarn=4h
+#O Timeout.queuewarn.normal=4h
+#O Timeout.queuewarn.urgent=1h
+#O Timeout.queuewarn.non-urgent=12h
+#O Timeout.hoststatus=30m
+
+# should we not prune routes in route-addr syntax addresses?
+#O DontPruneRoutes
+
+# queue up everything before forking?
+O SuperSafe=True
+
+# status file
+O StatusFile=/usr/adm/sendmail/sendmail.st
+
+# time zone handling:
+#  if undefined, use system default
+#  if defined but null, use TZ envariable passed in
+#  if defined and non-null, use that info
+#O TimeZoneSpec=
+
+# default UID (can be username or userid:groupid)
+O DefaultUser=1:1
+
+# list of locations of user database file (null means no lookup)
+#O UserDatabaseSpec=/etc/userdb
+
+# fallback MX host
+#O FallbackMXhost=fall.back.host.net
+
+# if we are the best MX host for a site, try it directly instead of config err
+#O TryNullMXList
+
+# load average at which we just queue messages
+#O QueueLA=8
+
+# load average at which we refuse connections
+#O RefuseLA=12
+
+# maximum number of children we allow at one time
+#O MaxDaemonChildren=12
+
+# maximum number of new connections per second
+#O ConnectionRateThrottle=3
+
+# work recipient factor
+#O RecipientFactor=30000
+
+# deliver each queued job in a separate process?
+#O ForkEachJob
+
+# work class factor
+#O ClassFactor=1800
+
+# work time factor
+#O RetryFactor=90000
+
+# shall we sort the queue by hostname first?
+#O QueueSortOrder=priority
+
+# minimum time in queue before retry
+#O MinQueueAge=30m
+
+# default character set
+#O DefaultCharSet=iso-8859-1
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+#O ServiceSwitchFile=/etc/service.switch
+
+# hosts file (normally /etc/hosts)
+#O HostsFile=/etc/hosts
+
+# dialup line delay on connection failure
+#O DialDelay=10s
+
+# action to take if there are no recipients in the message
+#O NoRecipientAction=add-to-undisclosed
+
+# chrooted environment for writing to files
+#O SafeFileEnvironment=/arch
+
+# are colons OK in addresses?
+#O ColonOkInAddr
+
+# how many jobs can you process in the queue?
+#O MaxQueueRunSize=10000
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+#O DontExpandCnames
+
+# SMTP initial login message (old $e macro)
+O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
+
+# UNIX initial From header format (old $l macro)
+O UnixFromLine=From $g  $d
+
+# delimiter (operator) characters (old $o macro)
+O OperatorChars=.:%@!^/[]+
+
+# shall I avoid calling initgroups(3) because of high NIS costs?
+#O DontInitGroups
+
+# are group-writable :include: and .forward files (un)trustworthy?
+#O UnsafeGroupWrites
+
+# where do errors that occur when sending errors get sent?
+#O DoubleBounceAddress
+
+# what user id do we assume for the majority of the processing?
+#O RunAsUser=sendmail
+
+###########################
+#   Message precedences   #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+#   Trusted users   #
+#####################
+
+# this is equivalent to setting class "t"
+#Ft/etc/sendmail.ct
+Troot
+Tdaemon
+Tuucp
+
+#########################
+#   Format of headers   #
+#########################
+
+H?P?Return-Path: <$g>
+HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
+	$.by $j ($v/$Z)$?r with $r$. id $i$?u
+	for $u; $|;
+	$.$b
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: $?x$x <$g>$|$g$.
+H?F?From: $?x$x <$g>$|$g$.
+H?x?Full-Name: $x
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+#
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+############################################
+###  Ruleset 3 -- Name Canonicalization  ###
+############################################
+S3
+
+# handle null input (translate to <@> special case)
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R@ $* <@>		$: @ $1				unmark @host:...
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:include: $* <@>	$: :include: $1			unmark :include:...
+R$* [ $* : $* ] <@>	$: $1 [ $2 : $3 ]		unmark IPv6 addrs
+R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# strip angle brackets -- note RFC733 heuristic to get innermost item
+R$*			$: < $1 >			housekeeping <>
+R$+ < $* >		   < $2 >			strip excess on left
+R< $* > $+		   < $1 >			strip excess on right
+R<>			$@ < @ >			MAIL FROM:<> case
+R< $+ >			$: $1				remove housekeeping <>
+
+# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
+R@ $+ , $+		@ $1 : $2			change all "," to ":"
+
+# localize and dispose of route-based addresses
+R@ $+ : $+		$@ $>96 < @$1 > : $2		handle <route-addr>
+
+# find focus for list syntax
+R $+ : $* ; @ $+	$@ $>96 $1 : $2 ; < @ $3 >	list syntax
+R $+ : $* ;		$@ $1 : $2;			list syntax
+
+# find focus for @ syntax addresses
+R$+ @ $+		$: $1 < @ $2 >			focus on domain
+R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
+R$+ < @ $+ >		$@ $>96 $1 < @ $2 >		already canonical
+
+# do some sanity checking
+R$* < @ $* : $* > $*	$1 < @ $2 $3 > $4		nix colons in addrs
+
+# convert old-style addresses to a domain-based address
+R$- ! $+		$@ $>96 $2 < @ $1 .UUCP >	resolve uucp names
+R$+ . $- ! $+		$@ $>96 $3 < @ $1 . $2 >		domain uucps
+R$+ ! $+		$@ $>96 $2 < @ $1 .UUCP >	uucp subdomains
+
+# if we have % signs, take the rightmost one
+R$* % $*		$1 @ $2				First make them all @s.
+R$* @ $* @ $*		$1 % $2 @ $3			Undo all but the last.
+R$* @ $*		$@ $>96 $1 < @ $2 >		Insert < > and finish
+
+# else we must be a local name
+R$*			$@ $>96 $1
+
+
+################################################
+###  Ruleset 96 -- bottom half of ruleset 3  ###
+################################################
+
+S96
+
+# handle special cases for local names
+R$* < @ localhost > $*		$: $1 < @ $j . > $2		no domain at all
+R$* < @ localhost . $m > $*	$: $1 < @ $j . > $2		local domain
+R$* < @ localhost . UUCP > $*	$: $1 < @ $j . > $2		.UUCP domain
+R$* < @ [ $+ ] > $*		$: $1 < @@ [ $2 ] > $3		mark [a.b.c.d]
+R$* < @@ $=w > $*		$: $1 < @ $j . > $3		self-literal
+R$* < @@ $+ > $*		$@ $1 < @ $2 > $3		canon IP addr
+
+# look up domains in the domain table
+#R$* < @ $+ > $* 		$: $1 < @ $(domaintable $2 $) > $3
+
+
+# if really UUCP, handle it immediately
+
+# try UUCP traffic as a local address
+R$* < @ $+ . UUCP > $*		$: $1 < @ $[ $2 $] . UUCP . > $3
+R$* < @ $+ . . UUCP . > $*		$@ $1 < @ $2 . > $3
+
+# pass to name server to make hostname canonical
+R$* < @ $* $~P > $*		$: $1 < @ $[ $2 $3 $] > $4
+
+# local host aliases and pseudo-domains are always canonical
+R$* < @ $=w > $*		$: $1 < @ $2 . > $3
+R$* < @ $j > $*			$: $1 < @ $j . > $2
+R$* < @ $=M > $*		$: $1 < @ $2 . > $3
+R$* < @ $* $=P > $*		$: $1 < @ $2 $3 . > $4
+R$* < @ $* . . > $*		$1 < @ $2 . > $3
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off possibly canonical name
+R$* < @ $+ . > $*	$1 < @ $2 > $3
+
+# eliminate internal code -- should never get this far!
+R$* < @ *LOCAL* > $*	$1 < @ $j > $2
+
+# externalize local domain info
+R$* < $+ > $*		$1 $2 $3			defocus
+R@ $+ : @ $+ : $+	@ $1 , @ $2 : $3		<route-addr> canonical
+R@ $*			$@ @ $1				... and exit
+
+# UUCP must always be presented in old form
+R$+ @ $- . UUCP		$2!$1				u@h.UUCP => h!u
+
+# delete duplicate local names
+R$+ % $=w @ $=w		$1 @ $2				u%host@host => u@host
+
+
+
+##############################################################
+###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
+###		   (used for recursive calls)		   ###
+##############################################################
+
+S97
+R$*			$: $>3 $1
+R$*			$@ $>0 $1
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*			$: $>Parse0 $1		initial parsing
+R$*			$: $>98 $1		handle local hacks
+R$*			$: $>Parse1 $1		final parsing
+
+SParse0
+R<@>			$#local $: <@>		special case error msgs
+R$* : $* ; <@>		$#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses"
+R<@ $+>			$#error $@ 5.1.1 $: "user address required"
+R$*			$: <> $1
+R<> $* < @ [ $+ ] > $*	$1 < @ [ $2 ] > $3
+R<> $* <$* : $* > $*	$#error $@ 5.1.1 $: "colon illegal in host name part"
+R<> $*			$1
+R$* < @ . $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+R$* < @ $* .. $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+
+# handle numeric address spec
+R$* < @ [ $+ ] > $*	$: $>98 $1 < @ [ $2 ] > $3	numeric internet spec
+R$* < @ [ $+ ] > $*	$#esmtp $@ [$2] $: $1 < @ [$2] > $3	still numeric: send
+
+# now delete the local info -- note $=O to find characters that cause forwarding
+R$* < @ > $*		$@ $>Parse0 $>3 $1		user@ => user
+R< @ $=w . > : $*	$@ $>Parse0 $>3 $2		@here:... -> ...
+R$- < @ $=w . >		$: $(dequote $1 $) < @ $2 . >	dequote "foo"@here
+R< @ $+ >		$#error $@ 5.1.1 $: "user address required"
+R$* $=O $* < @ $=w . >	$@ $>Parse0 $>3 $1 $2 $3	...@here -> ...
+
+SParse1
+# handle virtual users
+#R$+ < @ $=w . > 	$: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ < @ $+ . >	$: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+			$: $1
+#R< error : $- $+ > $* 	$#error $@ $( dequote $1 $) $: $2
+#R< $+ > $+ < @ $+ >	$: $>97 $1
+
+# short circuit local delivery so forwarded email works
+#R$+ . USENET < @ $=w . >	$#usenet $: $1		handle usenet specially
+R$=L < @ $=w . >	$#local $: @ $1		special local names
+R$+ < @ $=w . >		$#local $: $1			regular local name
+
+# not local -- try mailer table lookup
+#R$* <@ $+ > $*		$: < $2 > $1 < @ $2 > $3	extract host name
+#R< $+ . > $*		$: < $1 > $2			strip trailing dot
+#R< $+ > $*		$: < $(mailertable $1 $) > $2	lookup
+#R< $~[ : $+ > $* 	$>95 < $1 : $2 > $3		check -- resolved?
+#R< $+ > $*		$: $>90 <$1> $2			try domain
+
+# resolve remotely connected UUCP links (if any)
+
+# resolve fake top level domains by forwarding to other hosts
+
+
+
+# pass names that still have a host to a smarthost (if defined)
+R$* < @ $* > $*		$: $>95 < $S > $1 < @ $2 > $3	glue on smarthost name
+
+# deal with other remote names
+R$* < @$* > $*		$#esmtp $@ $2 $: $1 < @ $2 > $3		user@host.domain
+
+# if this is quoted, strip the quotes and try again
+R$+			$: $(dequote $1 $)		strip quotes
+R$+ $=O $+		$@ $>97 $1 $2 $3			try again
+
+# handle locally delivered names
+R$=L			$#local $: @ $1			special local names
+R$+			$#local $: $1			regular local names
+
+###########################################################################
+###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
+###########################################################################
+
+S5
+
+# deal with plussed users so aliases work nicely
+R$+ + *			$#local $@ $&h $: $1
+R$+ + $*		$#local $@ + $2 $: $1 + *
+
+# prepend an empty "forward host" on the front
+R$+			$: <> $1
+
+# send unrecognized local users to a relay host
+#R< > $+ 		$: < $L . > $( user $1 $)	look up user
+#R< $* > $+ <> $*	$: < > $2 $3			found; strip $L
+#R< $* . > $+		$: < $1 > $2			strip extra dot
+
+# see if we have a relay or a hub
+R< > $+			$: < $H > $1			try hub
+R< > $+			$: < $R > $1			try relay
+R< > $+			$: < > < $1 $(dequote "" $&h $) >	nope, restore +detail
+R< > < $+ + $* > $*	   < > < $1 > + $2 $3		find the user part
+R< > < $+ > + $*	$#local $@ $2 $: @ $1		strip the extra +
+R< > < $+ >		$@ $1				no +detail
+R$+			$: $1 $(dequote "" $&h $)	add +detail back in
+R< local : $* > $*	$: $>95 < local : $1 > $2	no host extension
+R< error : $* > $*	$: $>95 < error : $1 > $2	no host extension
+R< $- : $+ > $+		$: $>95 < $1 : $2 > $3 < @ $2 >
+R< $+ > $+		$@ $>95 < $1 > $2 < @ $1 >
+
+###################################################################
+###  Ruleset 90 -- try domain part of mailertable entry 	###
+###################################################################
+
+S90
+#R$* <$- . $+ > $*	$: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
+#R$* <$~[ : $+ > $*		$>95 < $2 : $3 > $4	check -- resolved?
+#R$* < . $+ > $* 		$@ $>90 $1 . <$2> $3	no -- strip & try again
+#R$* < $* > $*		$: < $(mailertable . $@ $1$2 $) > $3	try "."
+#R< $~[ : $+ > $*		$>95 < $1 : $2 > $3	"." found?
+#R< $* > $*			$@ $2			no mailertable match
+
+###################################################################
+###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple	###
+###################################################################
+
+S95
+R< > $*				$@ $1			strip off null relay
+R< error : $- $+ > $*		$#error $@ $( dequote $1 $) $: $2
+R< local : $* > $*		$>CanonLocal < $1 > $2
+R< $- : $+ @ $+ > $*<$*>$*	$# $1 $@ $3 $: $2<@$3>	use literal user
+R< $- : $+ > $*			$# $1 $@ $2 $: $3	try qualified mailer
+R< $=w > $*			$@ $2			delete local host
+R< $+ > $*			$#relay $@ $1 $: $2	use unqualified mailer
+
+###################################################################
+###  Ruleset CanonLocal -- canonify local: syntax		###
+###################################################################
+
+SCanonLocal
+# strip trailing dot from any host name that may appear
+R< $* > $* < @ $* . >		$: < $1 > $2 < @ $3 >
+
+# handle local: syntax -- use old user, either with or without host
+R< > $* < @ $* > $*		$#local $@ $1@$2 $: $1
+R< > $+				$#local $@ $1    $: $1
+
+# handle local:user@host syntax -- ignore host part
+R< $+ @ $+ > $* < @ $* >	$: < $1 > $3 < @ $4 >
+
+# handle local:user syntax
+R< $+ > $* <@ $* > $*		$#local $@ $2@$3 $: $1
+R< $+ > $* 			$#local $@ $2    $: $1
+
+###################################################################
+###  Ruleset 93 -- convert header names to masqueraded form	###
+###################################################################
+
+S93
+
+# handle generics database
+#R$+ < @ $=G . >	$: < $1@$2 > $1 < @ $2 . > @	mark
+#R$+ < @ *LOCAL* >	$: < $1@$j > $1 < @ *LOCAL* > @	mark
+#R< $+ > $+ < $* > @	$: < $(generics $1 $: $) > $2 < $3 >
+#R< > $+ < @ $+ > 	$: < $(generics $1 $: $) > $1 < @ $2 >
+#R< $* @ $* > $* < $* >	$@ $>3 $1 @ $2			found qualified
+#R< $+ > $* < $* >	$: $>3 $1 @ *LOCAL*		found unqualified
+#R< > $*			$: $1				not found
+
+# special case the users that should be exposed
+R$=E < @ *LOCAL* >	$@ $1 < @ $j . >		leave exposed
+R$=E < @ $=M . >	$@ $1 < @ $2 . >
+R$=E < @ $=w . >	$@ $1 < @ $2 . >
+
+# handle domain-specific masquerading
+R$* < @ $=M . > $*	$: $1 < @ $2 . @ $M > $3	convert masqueraded doms
+R$* < @ $=w . > $*	$: $1 < @ $2 . @ $M > $3
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . @ $M > $2
+R$* < @ $+ @ > $*	$: $1 < @ $2 > $3		$M is null
+R$* < @ $+ @ $+ > $*	$: $1 < @ $3 . > $4		$M is not null
+
+###################################################################
+###  Ruleset 94 -- convert envelope names to masqueraded form	###
+###################################################################
+
+S94
+#R$+			$@ $>93 $1
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . > $2
+
+###################################################################
+###  Ruleset 98 -- local part of ruleset zero (can be null)	###
+###################################################################
+
+S98
+
+# addresses sent to foo@host.REDIRECT will give a 551 error code
+R$* < @ $+ .REDIRECT. >		$: $1 < @ $2 . REDIRECT . > < ${opMode} >
+R$* < @ $+ .REDIRECT. > <i>	$: $1 < @ $2 . REDIRECT. >
+R$* < @ $+ .REDIRECT. > < $- >	$# error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>
+#
+######################################################################
+######################################################################
+#####
+#####			MAILER DEFINITIONS
+#####
+######################################################################
+######################################################################
+
+
+##################################################
+###   Local and Program Mailer specification   ###
+##################################################
+
+#####  @(#)local.m4	8.23 (Berkeley) 5/31/96  #####
+
+Mlocal,		P=/bin/mail, F=lsDFMAw5:/|@qrmn9, S=10/30, R=20/40,
+		T=DNS/RFC822/X-Unix,
+		A=mail -d $u
+Mprog,		P=/bin/sh, F=lsDFMoqeu9, S=10/30, R=20/40, D=$z:/,
+		T=X-Unix,
+		A=sh -c $u
+
+#
+#  Envelope sender rewriting
+#
+S10
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>94 $1		do masquerading
+
+#
+#  Envelope recipient rewriting
+#
+S20
+R$+ < @ $* >		$: $1			strip host part
+
+#
+#  Header sender rewriting
+#
+S30
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>93 $1		do masquerading
+
+#
+#  Header recipient rewriting
+#
+S40
+R$+			$: $>50 $1		add local domain if needed
+#R$*			$: $>93 $1		do all-masquerading
+
+#
+#  Common code to add local domain name (only if always-add-domain)
+#
+S50
+#R$* < @ $* > $* 	$@ $1 < @ $2 > $3		already fully qualified
+#R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+#####################################
+###   SMTP Mailer specification   ###
+#####################################
+
+#####  @(#)smtp.m4	8.33 (Berkeley) 7/9/96  #####
+
+Msmtp,		P=[IPC], F=mDFMuX, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mesmtp,		P=[IPC], F=mDFMuXa, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Msmtp8,		P=[IPC], F=mDFMuX8, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mrelay,		P=[IPC], F=mDFMuXa8, S=11/31, R=61, E=\r\n, L=2040,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+
+#
+#  envelope sender rewriting
+#
+S11
+R$+			$: $>51 $1			sender/recipient common
+R$* :; <@>		$@				list:; special case
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>94 $1			do masquerading
+
+
+#
+#  envelope recipient rewriting --
+#  also header recipient if not masquerading recipients
+#
+S21
+R$+			$: $>51 $1			sender/recipient common
+R$+			$: $>61 $1			qualify unqual'ed names
+
+
+#
+#  header sender and masquerading header recipient rewriting
+#
+S31
+R$+			$: $>51 $1			sender/recipient common
+R:; <@>			$@				list:; special case
+
+# do special header rewriting
+R$* <@> $*		$@ $1 <@> $2			pass null host through
+R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>93 $1			do masquerading
+
+
+#
+#  convert pseudo-domain addresses to real domain addresses
+#
+S51
+
+# pass <route-addr>s through
+R< @ $+ > $*		$@ < @ $1 > $2			resolve <route-addr>
+
+# output fake domains as user%fake@relay
+
+# do UUCP heuristics; note that these are shared with UUCP mailers
+R$+ < @ $+ .UUCP. >	$: < $2 ! > $1			convert to UUCP form
+R$+ < @ $* > $*		$@ $1 < @ $2 > $3		not UUCP form
+
+# leave these in .UUCP form to avoid further tampering
+R< $&h ! > $- ! $+	$@ $2 < @ $1 .UUCP. >
+R< $&h ! > $-.$+ ! $+	$@ $3 < @ $1.$2 >
+R< $&h ! > $+		$@ $1 < @ $&h .UUCP. >
+R< $+ ! > $+		$: $1 ! $2 < @ $Y >		use UUCP_RELAY
+R$+ < @ $+ : $+ >	$@ $1 < @ $3 >			strip mailer: part
+R$+ < @ >		$: $1 < @ *LOCAL* >		if no UUCP_RELAY
+
+
+#
+#  common sender and masquerading recipient rewriting
+#
+S61
+
+R$* < @ $* > $*		$@ $1 < @ $2 > $3		already fully qualified
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+
+#
+#  relay mailer header masquerading recipient rewriting
+#
+S71
+
+R$+			$: $>61 $1
+R$+			$: $>93 $1
diff --git a/cf/cf/obj/generic-solaris2.cf b/cf/cf/obj/generic-solaris2.cf
new file mode 100644
index 0000000..96d3b59
--- /dev/null
+++ b/cf/cf/obj/generic-solaris2.cf
@@ -0,0 +1,911 @@
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+######################################################################
+######################################################################
+#####
+#####		SENDMAIL CONFIGURATION FILE
+#####
+##### built by gshapiro@knecht.Sendmail.ORG on Fri Oct 24 15:54:33 PDT 1997
+##### in /home/knecht/a/eric/src/sendmail/cf/cf
+##### using ../ as configuration include directory
+#####
+######################################################################
+######################################################################
+
+#####  @(#)cfhead.m4	8.9 (Berkeley) 1/18/97  #####
+#####  @(#)cf.m4	8.24 (Berkeley) 8/16/95  #####
+#####  @(#)generic-solaris2.mc	8.3 (Berkeley) 3/23/96  #####
+
+#####  @(#)solaris2.m4	8.9 (Berkeley) 9/25/96  #####
+
+#####  @(#)generic.m4	8.3 (Berkeley) 3/24/96  #####
+
+#####  @(#)redirect.m4	8.5 (Berkeley) 8/17/96  #####
+
+
+
+
+#####  @(#)use_cw_file.m4	8.1 (Berkeley) 6/7/93  #####
+
+
+
+#####  @(#)proto.m4	8.151 (Berkeley) 7/31/97  #####
+
+
+# level 7 config file format
+V7/Berkeley
+
+##################
+#   local info   #
+##################
+
+Cwlocalhost
+# file containing names of hosts for which we receive email
+Fw/etc/mail/sendmail.cw
+
+# my official domain name
+# ... define this only if sendmail cannot automatically determine your domain
+#Dj$w.Foo.COM
+
+
+CP.
+
+# "Smart" relay host (may be null)
+DS
+
+# place to which unknown users should be forwarded
+#Kuser user -m -a<>
+#DLname_of_luser_relay
+
+# operators that cannot be in local usernames (i.e., network indicators)
+CO @ % !
+
+# a class with just dot (for identifying canonical names)
+C..
+
+# a class with just a left bracket (for identifying domain literals)
+C[[
+
+# Mailer table (overriding domains)
+#Kmailertable dbm /etc/mailertable
+
+# Domain table (adding domains)
+#Kdomaintable dbm /etc/domaintable
+
+# Generics table (mapping outgoing addresses)
+#Kgenerics dbm /etc/genericstable
+
+# Virtual user table (maps incoming users)
+#Kvirtuser dbm /etc/virtusertable
+
+# who I send unqualified names to (null means deliver locally)
+DR
+
+# who gets all local email traffic ($R has precedence for unqualified names)
+DH
+
+# dequoting map
+Kdequote dequote
+
+# class E: names that should be exposed as from this host, even if we masquerade
+# class L: names that should be delivered locally, even if we have a relay
+# class M: domains that should be converted to $M
+#CL root
+CE root
+
+# who I masquerade as (null for no masquerading) (see also $=M)
+DM
+
+# my name for error messages
+DnMAILER-DAEMON
+
+
+CPREDIRECT
+
+# Configuration version number
+DZ8.8.8
+
+
+###############
+#   Options   #
+###############
+
+# strip message body to 7 bits on input?
+O SevenBitInput=False
+
+# 8-bit data handling
+O EightBitMode=pass8
+
+
+# wait for alias file rebuild (default units: minutes)
+O AliasWait=10
+
+# location of alias file
+O AliasFile=/etc/mail/aliases
+
+# minimum number of free blocks on filesystem
+O MinFreeBlocks=100
+
+# maximum message size
+#O MaxMessageSize=1000000
+
+# substitution for space (blank) characters
+O BlankSub=.
+
+# avoid connecting to "expensive" mailers on initial submission?
+O HoldExpensive=False
+
+# checkpoint queue runs after every N successful deliveries
+#O CheckpointInterval=10
+
+# default delivery mode
+O DeliveryMode=background
+
+# automatically rebuild the alias database?
+#O AutoRebuildAliases
+
+# error message header/file
+#O ErrorHeader=/etc/sendmail.oE
+
+# error mode
+#O ErrorMode=print
+
+# save Unix-style "From_" lines at top of header?
+#O SaveFromLine
+
+# temporary file mode
+O TempFileMode=0600
+
+# match recipients against GECOS field?
+#O MatchGECOS
+
+# maximum hop count
+#O MaxHopCount=17
+
+# location of help file
+O HelpFile=/etc/mail/sendmail.hf
+
+# ignore dots as terminators in incoming messages?
+#O IgnoreDots
+
+# name resolver options
+#O ResolverOptions=+AAONLY
+
+# deliver MIME-encapsulated error messages?
+O SendMimeErrors=True
+
+# Forward file search path
+O ForwardPath=$z/.forward.$w:$z/.forward
+
+# open connection cache size
+O ConnectionCacheSize=2
+
+# open connection cache timeout
+O ConnectionCacheTimeout=5m
+
+# persistent host status directory
+#O HostStatusDirectory=.hoststat
+
+# single thread deliveries (requires HostStatusDirectory)?
+#O SingleThreadDelivery
+
+# use Errors-To: header?
+O UseErrorsTo=False
+
+# log level
+O LogLevel=9
+
+# send to me too, even in an alias expansion?
+#O MeToo
+
+# verify RHS in newaliases?
+O CheckAliases=False
+
+# default messages to old style headers if no special punctuation?
+O OldStyleHeaders=True
+
+# SMTP daemon options
+#O DaemonPortOptions=Port=esmtp
+
+# privacy flags
+O PrivacyOptions=authwarnings
+
+# who (if anyone) should get extra copies of error messages
+#O PostMasterCopy=Postmaster
+
+# slope of queue-only function
+#O QueueFactor=600000
+
+# queue directory
+O QueueDirectory=/var/spool/mqueue
+
+# timeouts (many of these)
+#O Timeout.initial=5m
+#O Timeout.connect=5m
+#O Timeout.iconnect=5m
+#O Timeout.helo=5m
+#O Timeout.mail=10m
+#O Timeout.rcpt=1h
+#O Timeout.datainit=5m
+#O Timeout.datablock=1h
+#O Timeout.datafinal=1h
+#O Timeout.rset=5m
+#O Timeout.quit=2m
+#O Timeout.misc=2m
+#O Timeout.command=1h
+#O Timeout.ident=30s
+#O Timeout.fileopen=60s
+O Timeout.queuereturn=5d
+#O Timeout.queuereturn.normal=5d
+#O Timeout.queuereturn.urgent=2d
+#O Timeout.queuereturn.non-urgent=7d
+O Timeout.queuewarn=4h
+#O Timeout.queuewarn.normal=4h
+#O Timeout.queuewarn.urgent=1h
+#O Timeout.queuewarn.non-urgent=12h
+#O Timeout.hoststatus=30m
+
+# should we not prune routes in route-addr syntax addresses?
+#O DontPruneRoutes
+
+# queue up everything before forking?
+O SuperSafe=True
+
+# status file
+O StatusFile=/etc/mail/sendmail.st
+
+# time zone handling:
+#  if undefined, use system default
+#  if defined but null, use TZ envariable passed in
+#  if defined and non-null, use that info
+#O TimeZoneSpec=
+
+# default UID (can be username or userid:groupid)
+O DefaultUser=1:1
+
+# list of locations of user database file (null means no lookup)
+#O UserDatabaseSpec=/etc/userdb
+
+# fallback MX host
+#O FallbackMXhost=fall.back.host.net
+
+# if we are the best MX host for a site, try it directly instead of config err
+#O TryNullMXList
+
+# load average at which we just queue messages
+#O QueueLA=8
+
+# load average at which we refuse connections
+#O RefuseLA=12
+
+# maximum number of children we allow at one time
+#O MaxDaemonChildren=12
+
+# maximum number of new connections per second
+#O ConnectionRateThrottle=3
+
+# work recipient factor
+#O RecipientFactor=30000
+
+# deliver each queued job in a separate process?
+#O ForkEachJob
+
+# work class factor
+#O ClassFactor=1800
+
+# work time factor
+#O RetryFactor=90000
+
+# shall we sort the queue by hostname first?
+#O QueueSortOrder=priority
+
+# minimum time in queue before retry
+#O MinQueueAge=30m
+
+# default character set
+#O DefaultCharSet=iso-8859-1
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+#O ServiceSwitchFile=/etc/service.switch
+
+# hosts file (normally /etc/hosts)
+#O HostsFile=/etc/hosts
+
+# dialup line delay on connection failure
+#O DialDelay=10s
+
+# action to take if there are no recipients in the message
+#O NoRecipientAction=add-to-undisclosed
+
+# chrooted environment for writing to files
+#O SafeFileEnvironment=/arch
+
+# are colons OK in addresses?
+#O ColonOkInAddr
+
+# how many jobs can you process in the queue?
+#O MaxQueueRunSize=10000
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+#O DontExpandCnames
+
+# SMTP initial login message (old $e macro)
+O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
+
+# UNIX initial From header format (old $l macro)
+O UnixFromLine=From $g  $d
+
+# delimiter (operator) characters (old $o macro)
+O OperatorChars=.:%@!^/[]+
+
+# shall I avoid calling initgroups(3) because of high NIS costs?
+#O DontInitGroups
+
+# are group-writable :include: and .forward files (un)trustworthy?
+#O UnsafeGroupWrites
+
+# where do errors that occur when sending errors get sent?
+#O DoubleBounceAddress
+
+# what user id do we assume for the majority of the processing?
+#O RunAsUser=sendmail
+
+###########################
+#   Message precedences   #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+#   Trusted users   #
+#####################
+
+# this is equivalent to setting class "t"
+#Ft/etc/sendmail.ct
+Troot
+Tdaemon
+Tuucp
+
+#########################
+#   Format of headers   #
+#########################
+
+H?P?Return-Path: <$g>
+HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
+	$.by $j ($v/$Z)$?r with $r$. id $i$?u
+	for $u; $|;
+	$.$b
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: $?x$x <$g>$|$g$.
+H?F?From: $?x$x <$g>$|$g$.
+H?x?Full-Name: $x
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+#
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+############################################
+###  Ruleset 3 -- Name Canonicalization  ###
+############################################
+S3
+
+# handle null input (translate to <@> special case)
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R@ $* <@>		$: @ $1				unmark @host:...
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:include: $* <@>	$: :include: $1			unmark :include:...
+R$* [ $* : $* ] <@>	$: $1 [ $2 : $3 ]		unmark IPv6 addrs
+R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# strip angle brackets -- note RFC733 heuristic to get innermost item
+R$*			$: < $1 >			housekeeping <>
+R$+ < $* >		   < $2 >			strip excess on left
+R< $* > $+		   < $1 >			strip excess on right
+R<>			$@ < @ >			MAIL FROM:<> case
+R< $+ >			$: $1				remove housekeeping <>
+
+# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
+R@ $+ , $+		@ $1 : $2			change all "," to ":"
+
+# localize and dispose of route-based addresses
+R@ $+ : $+		$@ $>96 < @$1 > : $2		handle <route-addr>
+
+# find focus for list syntax
+R $+ : $* ; @ $+	$@ $>96 $1 : $2 ; < @ $3 >	list syntax
+R $+ : $* ;		$@ $1 : $2;			list syntax
+
+# find focus for @ syntax addresses
+R$+ @ $+		$: $1 < @ $2 >			focus on domain
+R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
+R$+ < @ $+ >		$@ $>96 $1 < @ $2 >		already canonical
+
+# do some sanity checking
+R$* < @ $* : $* > $*	$1 < @ $2 $3 > $4		nix colons in addrs
+
+# convert old-style addresses to a domain-based address
+R$- ! $+		$@ $>96 $2 < @ $1 .UUCP >	resolve uucp names
+R$+ . $- ! $+		$@ $>96 $3 < @ $1 . $2 >		domain uucps
+R$+ ! $+		$@ $>96 $2 < @ $1 .UUCP >	uucp subdomains
+
+# if we have % signs, take the rightmost one
+R$* % $*		$1 @ $2				First make them all @s.
+R$* @ $* @ $*		$1 % $2 @ $3			Undo all but the last.
+R$* @ $*		$@ $>96 $1 < @ $2 >		Insert < > and finish
+
+# else we must be a local name
+R$*			$@ $>96 $1
+
+
+################################################
+###  Ruleset 96 -- bottom half of ruleset 3  ###
+################################################
+
+S96
+
+# handle special cases for local names
+R$* < @ localhost > $*		$: $1 < @ $j . > $2		no domain at all
+R$* < @ localhost . $m > $*	$: $1 < @ $j . > $2		local domain
+R$* < @ localhost . UUCP > $*	$: $1 < @ $j . > $2		.UUCP domain
+R$* < @ [ $+ ] > $*		$: $1 < @@ [ $2 ] > $3		mark [a.b.c.d]
+R$* < @@ $=w > $*		$: $1 < @ $j . > $3		self-literal
+R$* < @@ $+ > $*		$@ $1 < @ $2 > $3		canon IP addr
+
+# look up domains in the domain table
+#R$* < @ $+ > $* 		$: $1 < @ $(domaintable $2 $) > $3
+
+
+# if really UUCP, handle it immediately
+
+# try UUCP traffic as a local address
+R$* < @ $+ . UUCP > $*		$: $1 < @ $[ $2 $] . UUCP . > $3
+R$* < @ $+ . . UUCP . > $*		$@ $1 < @ $2 . > $3
+
+# pass to name server to make hostname canonical
+R$* < @ $* $~P > $*		$: $1 < @ $[ $2 $3 $] > $4
+
+# local host aliases and pseudo-domains are always canonical
+R$* < @ $=w > $*		$: $1 < @ $2 . > $3
+R$* < @ $j > $*			$: $1 < @ $j . > $2
+R$* < @ $=M > $*		$: $1 < @ $2 . > $3
+R$* < @ $* $=P > $*		$: $1 < @ $2 $3 . > $4
+R$* < @ $* . . > $*		$1 < @ $2 . > $3
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off possibly canonical name
+R$* < @ $+ . > $*	$1 < @ $2 > $3
+
+# eliminate internal code -- should never get this far!
+R$* < @ *LOCAL* > $*	$1 < @ $j > $2
+
+# externalize local domain info
+R$* < $+ > $*		$1 $2 $3			defocus
+R@ $+ : @ $+ : $+	@ $1 , @ $2 : $3		<route-addr> canonical
+R@ $*			$@ @ $1				... and exit
+
+# UUCP must always be presented in old form
+R$+ @ $- . UUCP		$2!$1				u@h.UUCP => h!u
+
+# delete duplicate local names
+R$+ % $=w @ $=w		$1 @ $2				u%host@host => u@host
+
+
+
+##############################################################
+###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
+###		   (used for recursive calls)		   ###
+##############################################################
+
+S97
+R$*			$: $>3 $1
+R$*			$@ $>0 $1
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*			$: $>Parse0 $1		initial parsing
+R$*			$: $>98 $1		handle local hacks
+R$*			$: $>Parse1 $1		final parsing
+
+SParse0
+R<@>			$#local $: <@>		special case error msgs
+R$* : $* ; <@>		$#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses"
+R<@ $+>			$#error $@ 5.1.1 $: "user address required"
+R$*			$: <> $1
+R<> $* < @ [ $+ ] > $*	$1 < @ [ $2 ] > $3
+R<> $* <$* : $* > $*	$#error $@ 5.1.1 $: "colon illegal in host name part"
+R<> $*			$1
+R$* < @ . $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+R$* < @ $* .. $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+
+# handle numeric address spec
+R$* < @ [ $+ ] > $*	$: $>98 $1 < @ [ $2 ] > $3	numeric internet spec
+R$* < @ [ $+ ] > $*	$#esmtp $@ [$2] $: $1 < @ [$2] > $3	still numeric: send
+
+# now delete the local info -- note $=O to find characters that cause forwarding
+R$* < @ > $*		$@ $>Parse0 $>3 $1		user@ => user
+R< @ $=w . > : $*	$@ $>Parse0 $>3 $2		@here:... -> ...
+R$- < @ $=w . >		$: $(dequote $1 $) < @ $2 . >	dequote "foo"@here
+R< @ $+ >		$#error $@ 5.1.1 $: "user address required"
+R$* $=O $* < @ $=w . >	$@ $>Parse0 $>3 $1 $2 $3	...@here -> ...
+
+SParse1
+# handle virtual users
+#R$+ < @ $=w . > 	$: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ < @ $+ . >	$: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+			$: $1
+#R< error : $- $+ > $* 	$#error $@ $( dequote $1 $) $: $2
+#R< $+ > $+ < @ $+ >	$: $>97 $1
+
+# short circuit local delivery so forwarded email works
+#R$+ . USENET < @ $=w . >	$#usenet $: $1		handle usenet specially
+R$=L < @ $=w . >	$#local $: @ $1		special local names
+R$+ < @ $=w . >		$#local $: $1			regular local name
+
+# not local -- try mailer table lookup
+#R$* <@ $+ > $*		$: < $2 > $1 < @ $2 > $3	extract host name
+#R< $+ . > $*		$: < $1 > $2			strip trailing dot
+#R< $+ > $*		$: < $(mailertable $1 $) > $2	lookup
+#R< $~[ : $+ > $* 	$>95 < $1 : $2 > $3		check -- resolved?
+#R< $+ > $*		$: $>90 <$1> $2			try domain
+
+# resolve remotely connected UUCP links (if any)
+
+# resolve fake top level domains by forwarding to other hosts
+
+
+
+# pass names that still have a host to a smarthost (if defined)
+R$* < @ $* > $*		$: $>95 < $S > $1 < @ $2 > $3	glue on smarthost name
+
+# deal with other remote names
+R$* < @$* > $*		$#esmtp $@ $2 $: $1 < @ $2 > $3		user@host.domain
+
+# if this is quoted, strip the quotes and try again
+R$+			$: $(dequote $1 $)		strip quotes
+R$+ $=O $+		$@ $>97 $1 $2 $3			try again
+
+# handle locally delivered names
+R$=L			$#local $: @ $1			special local names
+R$+			$#local $: $1			regular local names
+
+###########################################################################
+###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
+###########################################################################
+
+S5
+
+# deal with plussed users so aliases work nicely
+R$+ + *			$#local $@ $&h $: $1
+R$+ + $*		$#local $@ + $2 $: $1 + *
+
+# prepend an empty "forward host" on the front
+R$+			$: <> $1
+
+# send unrecognized local users to a relay host
+#R< > $+ 		$: < $L . > $( user $1 $)	look up user
+#R< $* > $+ <> $*	$: < > $2 $3			found; strip $L
+#R< $* . > $+		$: < $1 > $2			strip extra dot
+
+# see if we have a relay or a hub
+R< > $+			$: < $H > $1			try hub
+R< > $+			$: < $R > $1			try relay
+R< > $+			$: < > < $1 $(dequote "" $&h $) >	nope, restore +detail
+R< > < $+ + $* > $*	   < > < $1 > + $2 $3		find the user part
+R< > < $+ > + $*	$#local $@ $2 $: @ $1		strip the extra +
+R< > < $+ >		$@ $1				no +detail
+R$+			$: $1 $(dequote "" $&h $)	add +detail back in
+R< local : $* > $*	$: $>95 < local : $1 > $2	no host extension
+R< error : $* > $*	$: $>95 < error : $1 > $2	no host extension
+R< $- : $+ > $+		$: $>95 < $1 : $2 > $3 < @ $2 >
+R< $+ > $+		$@ $>95 < $1 > $2 < @ $1 >
+
+###################################################################
+###  Ruleset 90 -- try domain part of mailertable entry 	###
+###################################################################
+
+S90
+#R$* <$- . $+ > $*	$: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
+#R$* <$~[ : $+ > $*		$>95 < $2 : $3 > $4	check -- resolved?
+#R$* < . $+ > $* 		$@ $>90 $1 . <$2> $3	no -- strip & try again
+#R$* < $* > $*		$: < $(mailertable . $@ $1$2 $) > $3	try "."
+#R< $~[ : $+ > $*		$>95 < $1 : $2 > $3	"." found?
+#R< $* > $*			$@ $2			no mailertable match
+
+###################################################################
+###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple	###
+###################################################################
+
+S95
+R< > $*				$@ $1			strip off null relay
+R< error : $- $+ > $*		$#error $@ $( dequote $1 $) $: $2
+R< local : $* > $*		$>CanonLocal < $1 > $2
+R< $- : $+ @ $+ > $*<$*>$*	$# $1 $@ $3 $: $2<@$3>	use literal user
+R< $- : $+ > $*			$# $1 $@ $2 $: $3	try qualified mailer
+R< $=w > $*			$@ $2			delete local host
+R< $+ > $*			$#relay $@ $1 $: $2	use unqualified mailer
+
+###################################################################
+###  Ruleset CanonLocal -- canonify local: syntax		###
+###################################################################
+
+SCanonLocal
+# strip trailing dot from any host name that may appear
+R< $* > $* < @ $* . >		$: < $1 > $2 < @ $3 >
+
+# handle local: syntax -- use old user, either with or without host
+R< > $* < @ $* > $*		$#local $@ $1@$2 $: $1
+R< > $+				$#local $@ $1    $: $1
+
+# handle local:user@host syntax -- ignore host part
+R< $+ @ $+ > $* < @ $* >	$: < $1 > $3 < @ $4 >
+
+# handle local:user syntax
+R< $+ > $* <@ $* > $*		$#local $@ $2@$3 $: $1
+R< $+ > $* 			$#local $@ $2    $: $1
+
+###################################################################
+###  Ruleset 93 -- convert header names to masqueraded form	###
+###################################################################
+
+S93
+
+# handle generics database
+#R$+ < @ $=G . >	$: < $1@$2 > $1 < @ $2 . > @	mark
+#R$+ < @ *LOCAL* >	$: < $1@$j > $1 < @ *LOCAL* > @	mark
+#R< $+ > $+ < $* > @	$: < $(generics $1 $: $) > $2 < $3 >
+#R< > $+ < @ $+ > 	$: < $(generics $1 $: $) > $1 < @ $2 >
+#R< $* @ $* > $* < $* >	$@ $>3 $1 @ $2			found qualified
+#R< $+ > $* < $* >	$: $>3 $1 @ *LOCAL*		found unqualified
+#R< > $*			$: $1				not found
+
+# special case the users that should be exposed
+R$=E < @ *LOCAL* >	$@ $1 < @ $j . >		leave exposed
+R$=E < @ $=M . >	$@ $1 < @ $2 . >
+R$=E < @ $=w . >	$@ $1 < @ $2 . >
+
+# handle domain-specific masquerading
+R$* < @ $=M . > $*	$: $1 < @ $2 . @ $M > $3	convert masqueraded doms
+R$* < @ $=w . > $*	$: $1 < @ $2 . @ $M > $3
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . @ $M > $2
+R$* < @ $+ @ > $*	$: $1 < @ $2 > $3		$M is null
+R$* < @ $+ @ $+ > $*	$: $1 < @ $3 . > $4		$M is not null
+
+###################################################################
+###  Ruleset 94 -- convert envelope names to masqueraded form	###
+###################################################################
+
+S94
+#R$+			$@ $>93 $1
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . > $2
+
+###################################################################
+###  Ruleset 98 -- local part of ruleset zero (can be null)	###
+###################################################################
+
+S98
+
+# addresses sent to foo@host.REDIRECT will give a 551 error code
+R$* < @ $+ .REDIRECT. >		$: $1 < @ $2 . REDIRECT . > < ${opMode} >
+R$* < @ $+ .REDIRECT. > <i>	$: $1 < @ $2 . REDIRECT. >
+R$* < @ $+ .REDIRECT. > < $- >	$# error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>
+#
+######################################################################
+######################################################################
+#####
+#####			MAILER DEFINITIONS
+#####
+######################################################################
+######################################################################
+
+
+##################################################
+###   Local and Program Mailer specification   ###
+##################################################
+
+#####  @(#)local.m4	8.23 (Berkeley) 5/31/96  #####
+
+Mlocal,		P=/bin/mail, F=lsDFMAw5:/|@qSnE9, S=10/30, R=20/40,
+		T=DNS/RFC822/X-Unix,
+		A=mail -f $g -d $u
+Mprog,		P=/bin/sh, F=lsDFMoqeu9, S=10/30, R=20/40, D=$z:/,
+		T=X-Unix,
+		A=sh -c $u
+
+#
+#  Envelope sender rewriting
+#
+S10
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>94 $1		do masquerading
+
+#
+#  Envelope recipient rewriting
+#
+S20
+R$+ < @ $* >		$: $1			strip host part
+
+#
+#  Header sender rewriting
+#
+S30
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>93 $1		do masquerading
+
+#
+#  Header recipient rewriting
+#
+S40
+R$+			$: $>50 $1		add local domain if needed
+#R$*			$: $>93 $1		do all-masquerading
+
+#
+#  Common code to add local domain name (only if always-add-domain)
+#
+S50
+#R$* < @ $* > $* 	$@ $1 < @ $2 > $3		already fully qualified
+#R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+#####################################
+###   SMTP Mailer specification   ###
+#####################################
+
+#####  @(#)smtp.m4	8.33 (Berkeley) 7/9/96  #####
+
+Msmtp,		P=[IPC], F=mDFMuX, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mesmtp,		P=[IPC], F=mDFMuXa, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Msmtp8,		P=[IPC], F=mDFMuX8, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mrelay,		P=[IPC], F=mDFMuXa8, S=11/31, R=61, E=\r\n, L=2040,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+
+#
+#  envelope sender rewriting
+#
+S11
+R$+			$: $>51 $1			sender/recipient common
+R$* :; <@>		$@				list:; special case
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>94 $1			do masquerading
+
+
+#
+#  envelope recipient rewriting --
+#  also header recipient if not masquerading recipients
+#
+S21
+R$+			$: $>51 $1			sender/recipient common
+R$+			$: $>61 $1			qualify unqual'ed names
+
+
+#
+#  header sender and masquerading header recipient rewriting
+#
+S31
+R$+			$: $>51 $1			sender/recipient common
+R:; <@>			$@				list:; special case
+
+# do special header rewriting
+R$* <@> $*		$@ $1 <@> $2			pass null host through
+R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>93 $1			do masquerading
+
+
+#
+#  convert pseudo-domain addresses to real domain addresses
+#
+S51
+
+# pass <route-addr>s through
+R< @ $+ > $*		$@ < @ $1 > $2			resolve <route-addr>
+
+# output fake domains as user%fake@relay
+
+# do UUCP heuristics; note that these are shared with UUCP mailers
+R$+ < @ $+ .UUCP. >	$: < $2 ! > $1			convert to UUCP form
+R$+ < @ $* > $*		$@ $1 < @ $2 > $3		not UUCP form
+
+# leave these in .UUCP form to avoid further tampering
+R< $&h ! > $- ! $+	$@ $2 < @ $1 .UUCP. >
+R< $&h ! > $-.$+ ! $+	$@ $3 < @ $1.$2 >
+R< $&h ! > $+		$@ $1 < @ $&h .UUCP. >
+R< $+ ! > $+		$: $1 ! $2 < @ $Y >		use UUCP_RELAY
+R$+ < @ $+ : $+ >	$@ $1 < @ $3 >			strip mailer: part
+R$+ < @ >		$: $1 < @ *LOCAL* >		if no UUCP_RELAY
+
+
+#
+#  common sender and masquerading recipient rewriting
+#
+S61
+
+R$* < @ $* > $*		$@ $1 < @ $2 > $3		already fully qualified
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+
+#
+#  relay mailer header masquerading recipient rewriting
+#
+S71
+
+R$+			$: $>61 $1
+R$+			$: $>93 $1
diff --git a/cf/cf/obj/generic-sunos4.1.cf b/cf/cf/obj/generic-sunos4.1.cf
new file mode 100644
index 0000000..f7bba2a
--- /dev/null
+++ b/cf/cf/obj/generic-sunos4.1.cf
@@ -0,0 +1,911 @@
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+######################################################################
+######################################################################
+#####
+#####		SENDMAIL CONFIGURATION FILE
+#####
+##### built by gshapiro@knecht.Sendmail.ORG on Fri Oct 24 15:54:33 PDT 1997
+##### in /home/knecht/a/eric/src/sendmail/cf/cf
+##### using ../ as configuration include directory
+#####
+######################################################################
+######################################################################
+
+#####  @(#)cfhead.m4	8.9 (Berkeley) 1/18/97  #####
+#####  @(#)cf.m4	8.24 (Berkeley) 8/16/95  #####
+#####  @(#)generic-sunos4.1.mc	8.3 (Berkeley) 3/23/96  #####
+
+#####  @(#)sunos4.1.m4	8.1 (Berkeley) 6/7/93  #####
+
+#####  @(#)generic.m4	8.3 (Berkeley) 3/24/96  #####
+
+#####  @(#)redirect.m4	8.5 (Berkeley) 8/17/96  #####
+
+
+
+
+#####  @(#)use_cw_file.m4	8.1 (Berkeley) 6/7/93  #####
+
+
+
+#####  @(#)proto.m4	8.151 (Berkeley) 7/31/97  #####
+
+
+# level 7 config file format
+V7/Berkeley
+
+##################
+#   local info   #
+##################
+
+Cwlocalhost
+# file containing names of hosts for which we receive email
+Fw/etc/sendmail.cw
+
+# my official domain name
+# ... define this only if sendmail cannot automatically determine your domain
+#Dj$w.Foo.COM
+
+
+CP.
+
+# "Smart" relay host (may be null)
+DS
+
+# place to which unknown users should be forwarded
+#Kuser user -m -a<>
+#DLname_of_luser_relay
+
+# operators that cannot be in local usernames (i.e., network indicators)
+CO @ % !
+
+# a class with just dot (for identifying canonical names)
+C..
+
+# a class with just a left bracket (for identifying domain literals)
+C[[
+
+# Mailer table (overriding domains)
+#Kmailertable dbm /etc/mailertable
+
+# Domain table (adding domains)
+#Kdomaintable dbm /etc/domaintable
+
+# Generics table (mapping outgoing addresses)
+#Kgenerics dbm /etc/genericstable
+
+# Virtual user table (maps incoming users)
+#Kvirtuser dbm /etc/virtusertable
+
+# who I send unqualified names to (null means deliver locally)
+DR
+
+# who gets all local email traffic ($R has precedence for unqualified names)
+DH
+
+# dequoting map
+Kdequote dequote
+
+# class E: names that should be exposed as from this host, even if we masquerade
+# class L: names that should be delivered locally, even if we have a relay
+# class M: domains that should be converted to $M
+#CL root
+CE root
+
+# who I masquerade as (null for no masquerading) (see also $=M)
+DM
+
+# my name for error messages
+DnMAILER-DAEMON
+
+
+CPREDIRECT
+
+# Configuration version number
+DZ8.8.8
+
+
+###############
+#   Options   #
+###############
+
+# strip message body to 7 bits on input?
+O SevenBitInput=False
+
+# 8-bit data handling
+O EightBitMode=pass8
+
+
+# wait for alias file rebuild (default units: minutes)
+O AliasWait=10
+
+# location of alias file
+O AliasFile=/etc/aliases
+
+# minimum number of free blocks on filesystem
+O MinFreeBlocks=100
+
+# maximum message size
+#O MaxMessageSize=1000000
+
+# substitution for space (blank) characters
+O BlankSub=.
+
+# avoid connecting to "expensive" mailers on initial submission?
+O HoldExpensive=False
+
+# checkpoint queue runs after every N successful deliveries
+#O CheckpointInterval=10
+
+# default delivery mode
+O DeliveryMode=background
+
+# automatically rebuild the alias database?
+#O AutoRebuildAliases
+
+# error message header/file
+#O ErrorHeader=/etc/sendmail.oE
+
+# error mode
+#O ErrorMode=print
+
+# save Unix-style "From_" lines at top of header?
+#O SaveFromLine
+
+# temporary file mode
+O TempFileMode=0600
+
+# match recipients against GECOS field?
+#O MatchGECOS
+
+# maximum hop count
+#O MaxHopCount=17
+
+# location of help file
+O HelpFile=/usr/lib/sendmail.hf
+
+# ignore dots as terminators in incoming messages?
+#O IgnoreDots
+
+# name resolver options
+#O ResolverOptions=+AAONLY
+
+# deliver MIME-encapsulated error messages?
+O SendMimeErrors=True
+
+# Forward file search path
+O ForwardPath=$z/.forward.$w:$z/.forward
+
+# open connection cache size
+O ConnectionCacheSize=2
+
+# open connection cache timeout
+O ConnectionCacheTimeout=5m
+
+# persistent host status directory
+#O HostStatusDirectory=.hoststat
+
+# single thread deliveries (requires HostStatusDirectory)?
+#O SingleThreadDelivery
+
+# use Errors-To: header?
+O UseErrorsTo=False
+
+# log level
+O LogLevel=9
+
+# send to me too, even in an alias expansion?
+#O MeToo
+
+# verify RHS in newaliases?
+O CheckAliases=False
+
+# default messages to old style headers if no special punctuation?
+O OldStyleHeaders=True
+
+# SMTP daemon options
+#O DaemonPortOptions=Port=esmtp
+
+# privacy flags
+O PrivacyOptions=authwarnings
+
+# who (if anyone) should get extra copies of error messages
+#O PostMasterCopy=Postmaster
+
+# slope of queue-only function
+#O QueueFactor=600000
+
+# queue directory
+O QueueDirectory=/var/spool/mqueue
+
+# timeouts (many of these)
+#O Timeout.initial=5m
+#O Timeout.connect=5m
+#O Timeout.iconnect=5m
+#O Timeout.helo=5m
+#O Timeout.mail=10m
+#O Timeout.rcpt=1h
+#O Timeout.datainit=5m
+#O Timeout.datablock=1h
+#O Timeout.datafinal=1h
+#O Timeout.rset=5m
+#O Timeout.quit=2m
+#O Timeout.misc=2m
+#O Timeout.command=1h
+#O Timeout.ident=30s
+#O Timeout.fileopen=60s
+O Timeout.queuereturn=5d
+#O Timeout.queuereturn.normal=5d
+#O Timeout.queuereturn.urgent=2d
+#O Timeout.queuereturn.non-urgent=7d
+O Timeout.queuewarn=4h
+#O Timeout.queuewarn.normal=4h
+#O Timeout.queuewarn.urgent=1h
+#O Timeout.queuewarn.non-urgent=12h
+#O Timeout.hoststatus=30m
+
+# should we not prune routes in route-addr syntax addresses?
+#O DontPruneRoutes
+
+# queue up everything before forking?
+O SuperSafe=True
+
+# status file
+O StatusFile=/etc/sendmail.st
+
+# time zone handling:
+#  if undefined, use system default
+#  if defined but null, use TZ envariable passed in
+#  if defined and non-null, use that info
+#O TimeZoneSpec=
+
+# default UID (can be username or userid:groupid)
+O DefaultUser=1:1
+
+# list of locations of user database file (null means no lookup)
+#O UserDatabaseSpec=/etc/userdb
+
+# fallback MX host
+#O FallbackMXhost=fall.back.host.net
+
+# if we are the best MX host for a site, try it directly instead of config err
+#O TryNullMXList
+
+# load average at which we just queue messages
+#O QueueLA=8
+
+# load average at which we refuse connections
+#O RefuseLA=12
+
+# maximum number of children we allow at one time
+#O MaxDaemonChildren=12
+
+# maximum number of new connections per second
+#O ConnectionRateThrottle=3
+
+# work recipient factor
+#O RecipientFactor=30000
+
+# deliver each queued job in a separate process?
+#O ForkEachJob
+
+# work class factor
+#O ClassFactor=1800
+
+# work time factor
+#O RetryFactor=90000
+
+# shall we sort the queue by hostname first?
+#O QueueSortOrder=priority
+
+# minimum time in queue before retry
+#O MinQueueAge=30m
+
+# default character set
+#O DefaultCharSet=iso-8859-1
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+#O ServiceSwitchFile=/etc/service.switch
+
+# hosts file (normally /etc/hosts)
+#O HostsFile=/etc/hosts
+
+# dialup line delay on connection failure
+#O DialDelay=10s
+
+# action to take if there are no recipients in the message
+#O NoRecipientAction=add-to-undisclosed
+
+# chrooted environment for writing to files
+#O SafeFileEnvironment=/arch
+
+# are colons OK in addresses?
+#O ColonOkInAddr
+
+# how many jobs can you process in the queue?
+#O MaxQueueRunSize=10000
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+#O DontExpandCnames
+
+# SMTP initial login message (old $e macro)
+O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
+
+# UNIX initial From header format (old $l macro)
+O UnixFromLine=From $g  $d
+
+# delimiter (operator) characters (old $o macro)
+O OperatorChars=.:%@!^/[]+
+
+# shall I avoid calling initgroups(3) because of high NIS costs?
+#O DontInitGroups
+
+# are group-writable :include: and .forward files (un)trustworthy?
+#O UnsafeGroupWrites
+
+# where do errors that occur when sending errors get sent?
+#O DoubleBounceAddress
+
+# what user id do we assume for the majority of the processing?
+#O RunAsUser=sendmail
+
+###########################
+#   Message precedences   #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+#   Trusted users   #
+#####################
+
+# this is equivalent to setting class "t"
+#Ft/etc/sendmail.ct
+Troot
+Tdaemon
+Tuucp
+
+#########################
+#   Format of headers   #
+#########################
+
+H?P?Return-Path: <$g>
+HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
+	$.by $j ($v/$Z)$?r with $r$. id $i$?u
+	for $u; $|;
+	$.$b
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: $?x$x <$g>$|$g$.
+H?F?From: $?x$x <$g>$|$g$.
+H?x?Full-Name: $x
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+#
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+############################################
+###  Ruleset 3 -- Name Canonicalization  ###
+############################################
+S3
+
+# handle null input (translate to <@> special case)
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R@ $* <@>		$: @ $1				unmark @host:...
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:include: $* <@>	$: :include: $1			unmark :include:...
+R$* [ $* : $* ] <@>	$: $1 [ $2 : $3 ]		unmark IPv6 addrs
+R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# strip angle brackets -- note RFC733 heuristic to get innermost item
+R$*			$: < $1 >			housekeeping <>
+R$+ < $* >		   < $2 >			strip excess on left
+R< $* > $+		   < $1 >			strip excess on right
+R<>			$@ < @ >			MAIL FROM:<> case
+R< $+ >			$: $1				remove housekeeping <>
+
+# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
+R@ $+ , $+		@ $1 : $2			change all "," to ":"
+
+# localize and dispose of route-based addresses
+R@ $+ : $+		$@ $>96 < @$1 > : $2		handle <route-addr>
+
+# find focus for list syntax
+R $+ : $* ; @ $+	$@ $>96 $1 : $2 ; < @ $3 >	list syntax
+R $+ : $* ;		$@ $1 : $2;			list syntax
+
+# find focus for @ syntax addresses
+R$+ @ $+		$: $1 < @ $2 >			focus on domain
+R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
+R$+ < @ $+ >		$@ $>96 $1 < @ $2 >		already canonical
+
+# do some sanity checking
+R$* < @ $* : $* > $*	$1 < @ $2 $3 > $4		nix colons in addrs
+
+# convert old-style addresses to a domain-based address
+R$- ! $+		$@ $>96 $2 < @ $1 .UUCP >	resolve uucp names
+R$+ . $- ! $+		$@ $>96 $3 < @ $1 . $2 >		domain uucps
+R$+ ! $+		$@ $>96 $2 < @ $1 .UUCP >	uucp subdomains
+
+# if we have % signs, take the rightmost one
+R$* % $*		$1 @ $2				First make them all @s.
+R$* @ $* @ $*		$1 % $2 @ $3			Undo all but the last.
+R$* @ $*		$@ $>96 $1 < @ $2 >		Insert < > and finish
+
+# else we must be a local name
+R$*			$@ $>96 $1
+
+
+################################################
+###  Ruleset 96 -- bottom half of ruleset 3  ###
+################################################
+
+S96
+
+# handle special cases for local names
+R$* < @ localhost > $*		$: $1 < @ $j . > $2		no domain at all
+R$* < @ localhost . $m > $*	$: $1 < @ $j . > $2		local domain
+R$* < @ localhost . UUCP > $*	$: $1 < @ $j . > $2		.UUCP domain
+R$* < @ [ $+ ] > $*		$: $1 < @@ [ $2 ] > $3		mark [a.b.c.d]
+R$* < @@ $=w > $*		$: $1 < @ $j . > $3		self-literal
+R$* < @@ $+ > $*		$@ $1 < @ $2 > $3		canon IP addr
+
+# look up domains in the domain table
+#R$* < @ $+ > $* 		$: $1 < @ $(domaintable $2 $) > $3
+
+
+# if really UUCP, handle it immediately
+
+# try UUCP traffic as a local address
+R$* < @ $+ . UUCP > $*		$: $1 < @ $[ $2 $] . UUCP . > $3
+R$* < @ $+ . . UUCP . > $*		$@ $1 < @ $2 . > $3
+
+# pass to name server to make hostname canonical
+R$* < @ $* $~P > $*		$: $1 < @ $[ $2 $3 $] > $4
+
+# local host aliases and pseudo-domains are always canonical
+R$* < @ $=w > $*		$: $1 < @ $2 . > $3
+R$* < @ $j > $*			$: $1 < @ $j . > $2
+R$* < @ $=M > $*		$: $1 < @ $2 . > $3
+R$* < @ $* $=P > $*		$: $1 < @ $2 $3 . > $4
+R$* < @ $* . . > $*		$1 < @ $2 . > $3
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off possibly canonical name
+R$* < @ $+ . > $*	$1 < @ $2 > $3
+
+# eliminate internal code -- should never get this far!
+R$* < @ *LOCAL* > $*	$1 < @ $j > $2
+
+# externalize local domain info
+R$* < $+ > $*		$1 $2 $3			defocus
+R@ $+ : @ $+ : $+	@ $1 , @ $2 : $3		<route-addr> canonical
+R@ $*			$@ @ $1				... and exit
+
+# UUCP must always be presented in old form
+R$+ @ $- . UUCP		$2!$1				u@h.UUCP => h!u
+
+# delete duplicate local names
+R$+ % $=w @ $=w		$1 @ $2				u%host@host => u@host
+
+
+
+##############################################################
+###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
+###		   (used for recursive calls)		   ###
+##############################################################
+
+S97
+R$*			$: $>3 $1
+R$*			$@ $>0 $1
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*			$: $>Parse0 $1		initial parsing
+R$*			$: $>98 $1		handle local hacks
+R$*			$: $>Parse1 $1		final parsing
+
+SParse0
+R<@>			$#local $: <@>		special case error msgs
+R$* : $* ; <@>		$#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses"
+R<@ $+>			$#error $@ 5.1.1 $: "user address required"
+R$*			$: <> $1
+R<> $* < @ [ $+ ] > $*	$1 < @ [ $2 ] > $3
+R<> $* <$* : $* > $*	$#error $@ 5.1.1 $: "colon illegal in host name part"
+R<> $*			$1
+R$* < @ . $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+R$* < @ $* .. $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+
+# handle numeric address spec
+R$* < @ [ $+ ] > $*	$: $>98 $1 < @ [ $2 ] > $3	numeric internet spec
+R$* < @ [ $+ ] > $*	$#esmtp $@ [$2] $: $1 < @ [$2] > $3	still numeric: send
+
+# now delete the local info -- note $=O to find characters that cause forwarding
+R$* < @ > $*		$@ $>Parse0 $>3 $1		user@ => user
+R< @ $=w . > : $*	$@ $>Parse0 $>3 $2		@here:... -> ...
+R$- < @ $=w . >		$: $(dequote $1 $) < @ $2 . >	dequote "foo"@here
+R< @ $+ >		$#error $@ 5.1.1 $: "user address required"
+R$* $=O $* < @ $=w . >	$@ $>Parse0 $>3 $1 $2 $3	...@here -> ...
+
+SParse1
+# handle virtual users
+#R$+ < @ $=w . > 	$: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ < @ $+ . >	$: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+			$: $1
+#R< error : $- $+ > $* 	$#error $@ $( dequote $1 $) $: $2
+#R< $+ > $+ < @ $+ >	$: $>97 $1
+
+# short circuit local delivery so forwarded email works
+#R$+ . USENET < @ $=w . >	$#usenet $: $1		handle usenet specially
+R$=L < @ $=w . >	$#local $: @ $1		special local names
+R$+ < @ $=w . >		$#local $: $1			regular local name
+
+# not local -- try mailer table lookup
+#R$* <@ $+ > $*		$: < $2 > $1 < @ $2 > $3	extract host name
+#R< $+ . > $*		$: < $1 > $2			strip trailing dot
+#R< $+ > $*		$: < $(mailertable $1 $) > $2	lookup
+#R< $~[ : $+ > $* 	$>95 < $1 : $2 > $3		check -- resolved?
+#R< $+ > $*		$: $>90 <$1> $2			try domain
+
+# resolve remotely connected UUCP links (if any)
+
+# resolve fake top level domains by forwarding to other hosts
+
+
+
+# pass names that still have a host to a smarthost (if defined)
+R$* < @ $* > $*		$: $>95 < $S > $1 < @ $2 > $3	glue on smarthost name
+
+# deal with other remote names
+R$* < @$* > $*		$#esmtp $@ $2 $: $1 < @ $2 > $3		user@host.domain
+
+# if this is quoted, strip the quotes and try again
+R$+			$: $(dequote $1 $)		strip quotes
+R$+ $=O $+		$@ $>97 $1 $2 $3			try again
+
+# handle locally delivered names
+R$=L			$#local $: @ $1			special local names
+R$+			$#local $: $1			regular local names
+
+###########################################################################
+###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
+###########################################################################
+
+S5
+
+# deal with plussed users so aliases work nicely
+R$+ + *			$#local $@ $&h $: $1
+R$+ + $*		$#local $@ + $2 $: $1 + *
+
+# prepend an empty "forward host" on the front
+R$+			$: <> $1
+
+# send unrecognized local users to a relay host
+#R< > $+ 		$: < $L . > $( user $1 $)	look up user
+#R< $* > $+ <> $*	$: < > $2 $3			found; strip $L
+#R< $* . > $+		$: < $1 > $2			strip extra dot
+
+# see if we have a relay or a hub
+R< > $+			$: < $H > $1			try hub
+R< > $+			$: < $R > $1			try relay
+R< > $+			$: < > < $1 $(dequote "" $&h $) >	nope, restore +detail
+R< > < $+ + $* > $*	   < > < $1 > + $2 $3		find the user part
+R< > < $+ > + $*	$#local $@ $2 $: @ $1		strip the extra +
+R< > < $+ >		$@ $1				no +detail
+R$+			$: $1 $(dequote "" $&h $)	add +detail back in
+R< local : $* > $*	$: $>95 < local : $1 > $2	no host extension
+R< error : $* > $*	$: $>95 < error : $1 > $2	no host extension
+R< $- : $+ > $+		$: $>95 < $1 : $2 > $3 < @ $2 >
+R< $+ > $+		$@ $>95 < $1 > $2 < @ $1 >
+
+###################################################################
+###  Ruleset 90 -- try domain part of mailertable entry 	###
+###################################################################
+
+S90
+#R$* <$- . $+ > $*	$: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
+#R$* <$~[ : $+ > $*		$>95 < $2 : $3 > $4	check -- resolved?
+#R$* < . $+ > $* 		$@ $>90 $1 . <$2> $3	no -- strip & try again
+#R$* < $* > $*		$: < $(mailertable . $@ $1$2 $) > $3	try "."
+#R< $~[ : $+ > $*		$>95 < $1 : $2 > $3	"." found?
+#R< $* > $*			$@ $2			no mailertable match
+
+###################################################################
+###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple	###
+###################################################################
+
+S95
+R< > $*				$@ $1			strip off null relay
+R< error : $- $+ > $*		$#error $@ $( dequote $1 $) $: $2
+R< local : $* > $*		$>CanonLocal < $1 > $2
+R< $- : $+ @ $+ > $*<$*>$*	$# $1 $@ $3 $: $2<@$3>	use literal user
+R< $- : $+ > $*			$# $1 $@ $2 $: $3	try qualified mailer
+R< $=w > $*			$@ $2			delete local host
+R< $+ > $*			$#relay $@ $1 $: $2	use unqualified mailer
+
+###################################################################
+###  Ruleset CanonLocal -- canonify local: syntax		###
+###################################################################
+
+SCanonLocal
+# strip trailing dot from any host name that may appear
+R< $* > $* < @ $* . >		$: < $1 > $2 < @ $3 >
+
+# handle local: syntax -- use old user, either with or without host
+R< > $* < @ $* > $*		$#local $@ $1@$2 $: $1
+R< > $+				$#local $@ $1    $: $1
+
+# handle local:user@host syntax -- ignore host part
+R< $+ @ $+ > $* < @ $* >	$: < $1 > $3 < @ $4 >
+
+# handle local:user syntax
+R< $+ > $* <@ $* > $*		$#local $@ $2@$3 $: $1
+R< $+ > $* 			$#local $@ $2    $: $1
+
+###################################################################
+###  Ruleset 93 -- convert header names to masqueraded form	###
+###################################################################
+
+S93
+
+# handle generics database
+#R$+ < @ $=G . >	$: < $1@$2 > $1 < @ $2 . > @	mark
+#R$+ < @ *LOCAL* >	$: < $1@$j > $1 < @ *LOCAL* > @	mark
+#R< $+ > $+ < $* > @	$: < $(generics $1 $: $) > $2 < $3 >
+#R< > $+ < @ $+ > 	$: < $(generics $1 $: $) > $1 < @ $2 >
+#R< $* @ $* > $* < $* >	$@ $>3 $1 @ $2			found qualified
+#R< $+ > $* < $* >	$: $>3 $1 @ *LOCAL*		found unqualified
+#R< > $*			$: $1				not found
+
+# special case the users that should be exposed
+R$=E < @ *LOCAL* >	$@ $1 < @ $j . >		leave exposed
+R$=E < @ $=M . >	$@ $1 < @ $2 . >
+R$=E < @ $=w . >	$@ $1 < @ $2 . >
+
+# handle domain-specific masquerading
+R$* < @ $=M . > $*	$: $1 < @ $2 . @ $M > $3	convert masqueraded doms
+R$* < @ $=w . > $*	$: $1 < @ $2 . @ $M > $3
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . @ $M > $2
+R$* < @ $+ @ > $*	$: $1 < @ $2 > $3		$M is null
+R$* < @ $+ @ $+ > $*	$: $1 < @ $3 . > $4		$M is not null
+
+###################################################################
+###  Ruleset 94 -- convert envelope names to masqueraded form	###
+###################################################################
+
+S94
+#R$+			$@ $>93 $1
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . > $2
+
+###################################################################
+###  Ruleset 98 -- local part of ruleset zero (can be null)	###
+###################################################################
+
+S98
+
+# addresses sent to foo@host.REDIRECT will give a 551 error code
+R$* < @ $+ .REDIRECT. >		$: $1 < @ $2 . REDIRECT . > < ${opMode} >
+R$* < @ $+ .REDIRECT. > <i>	$: $1 < @ $2 . REDIRECT. >
+R$* < @ $+ .REDIRECT. > < $- >	$# error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>
+#
+######################################################################
+######################################################################
+#####
+#####			MAILER DEFINITIONS
+#####
+######################################################################
+######################################################################
+
+
+##################################################
+###   Local and Program Mailer specification   ###
+##################################################
+
+#####  @(#)local.m4	8.23 (Berkeley) 5/31/96  #####
+
+Mlocal,		P=/bin/mail, F=lsDFMAw5:/|@qrmn9, S=10/30, R=20/40,
+		T=DNS/RFC822/X-Unix,
+		A=mail -d $u
+Mprog,		P=/bin/sh, F=lsDFMoqeu9, S=10/30, R=20/40, D=$z:/,
+		T=X-Unix,
+		A=sh -c $u
+
+#
+#  Envelope sender rewriting
+#
+S10
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>94 $1		do masquerading
+
+#
+#  Envelope recipient rewriting
+#
+S20
+R$+ < @ $* >		$: $1			strip host part
+
+#
+#  Header sender rewriting
+#
+S30
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>93 $1		do masquerading
+
+#
+#  Header recipient rewriting
+#
+S40
+R$+			$: $>50 $1		add local domain if needed
+#R$*			$: $>93 $1		do all-masquerading
+
+#
+#  Common code to add local domain name (only if always-add-domain)
+#
+S50
+#R$* < @ $* > $* 	$@ $1 < @ $2 > $3		already fully qualified
+#R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+#####################################
+###   SMTP Mailer specification   ###
+#####################################
+
+#####  @(#)smtp.m4	8.33 (Berkeley) 7/9/96  #####
+
+Msmtp,		P=[IPC], F=mDFMuX, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mesmtp,		P=[IPC], F=mDFMuXa, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Msmtp8,		P=[IPC], F=mDFMuX8, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mrelay,		P=[IPC], F=mDFMuXa8, S=11/31, R=61, E=\r\n, L=2040,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+
+#
+#  envelope sender rewriting
+#
+S11
+R$+			$: $>51 $1			sender/recipient common
+R$* :; <@>		$@				list:; special case
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>94 $1			do masquerading
+
+
+#
+#  envelope recipient rewriting --
+#  also header recipient if not masquerading recipients
+#
+S21
+R$+			$: $>51 $1			sender/recipient common
+R$+			$: $>61 $1			qualify unqual'ed names
+
+
+#
+#  header sender and masquerading header recipient rewriting
+#
+S31
+R$+			$: $>51 $1			sender/recipient common
+R:; <@>			$@				list:; special case
+
+# do special header rewriting
+R$* <@> $*		$@ $1 <@> $2			pass null host through
+R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>93 $1			do masquerading
+
+
+#
+#  convert pseudo-domain addresses to real domain addresses
+#
+S51
+
+# pass <route-addr>s through
+R< @ $+ > $*		$@ < @ $1 > $2			resolve <route-addr>
+
+# output fake domains as user%fake@relay
+
+# do UUCP heuristics; note that these are shared with UUCP mailers
+R$+ < @ $+ .UUCP. >	$: < $2 ! > $1			convert to UUCP form
+R$+ < @ $* > $*		$@ $1 < @ $2 > $3		not UUCP form
+
+# leave these in .UUCP form to avoid further tampering
+R< $&h ! > $- ! $+	$@ $2 < @ $1 .UUCP. >
+R< $&h ! > $-.$+ ! $+	$@ $3 < @ $1.$2 >
+R< $&h ! > $+		$@ $1 < @ $&h .UUCP. >
+R< $+ ! > $+		$: $1 ! $2 < @ $Y >		use UUCP_RELAY
+R$+ < @ $+ : $+ >	$@ $1 < @ $3 >			strip mailer: part
+R$+ < @ >		$: $1 < @ *LOCAL* >		if no UUCP_RELAY
+
+
+#
+#  common sender and masquerading recipient rewriting
+#
+S61
+
+R$* < @ $* > $*		$@ $1 < @ $2 > $3		already fully qualified
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+
+#
+#  relay mailer header masquerading recipient rewriting
+#
+S71
+
+R$+			$: $>61 $1
+R$+			$: $>93 $1
diff --git a/cf/cf/obj/generic-ultrix4.cf b/cf/cf/obj/generic-ultrix4.cf
new file mode 100644
index 0000000..b18ba2a
--- /dev/null
+++ b/cf/cf/obj/generic-ultrix4.cf
@@ -0,0 +1,911 @@
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+######################################################################
+######################################################################
+#####
+#####		SENDMAIL CONFIGURATION FILE
+#####
+##### built by gshapiro@knecht.Sendmail.ORG on Fri Oct 24 15:54:33 PDT 1997
+##### in /home/knecht/a/eric/src/sendmail/cf/cf
+##### using ../ as configuration include directory
+#####
+######################################################################
+######################################################################
+
+#####  @(#)cfhead.m4	8.9 (Berkeley) 1/18/97  #####
+#####  @(#)cf.m4	8.24 (Berkeley) 8/16/95  #####
+#####  @(#)generic-ultrix4.mc	8.3 (Berkeley) 3/23/96  #####
+
+#####  @(#)ultrix4.m4	8.2 (Berkeley) 7/2/94  #####
+
+#####  @(#)generic.m4	8.3 (Berkeley) 3/24/96  #####
+
+#####  @(#)redirect.m4	8.5 (Berkeley) 8/17/96  #####
+
+
+
+
+#####  @(#)use_cw_file.m4	8.1 (Berkeley) 6/7/93  #####
+
+
+
+#####  @(#)proto.m4	8.151 (Berkeley) 7/31/97  #####
+
+
+# level 7 config file format
+V7/Berkeley
+
+##################
+#   local info   #
+##################
+
+Cwlocalhost
+# file containing names of hosts for which we receive email
+Fw/etc/sendmail.cw
+
+# my official domain name
+# ... define this only if sendmail cannot automatically determine your domain
+#Dj$w.Foo.COM
+
+
+CP.
+
+# "Smart" relay host (may be null)
+DS
+
+# place to which unknown users should be forwarded
+#Kuser user -m -a<>
+#DLname_of_luser_relay
+
+# operators that cannot be in local usernames (i.e., network indicators)
+CO @ % !
+
+# a class with just dot (for identifying canonical names)
+C..
+
+# a class with just a left bracket (for identifying domain literals)
+C[[
+
+# Mailer table (overriding domains)
+#Kmailertable dbm /etc/mailertable
+
+# Domain table (adding domains)
+#Kdomaintable dbm /etc/domaintable
+
+# Generics table (mapping outgoing addresses)
+#Kgenerics dbm /etc/genericstable
+
+# Virtual user table (maps incoming users)
+#Kvirtuser dbm /etc/virtusertable
+
+# who I send unqualified names to (null means deliver locally)
+DR
+
+# who gets all local email traffic ($R has precedence for unqualified names)
+DH
+
+# dequoting map
+Kdequote dequote
+
+# class E: names that should be exposed as from this host, even if we masquerade
+# class L: names that should be delivered locally, even if we have a relay
+# class M: domains that should be converted to $M
+#CL root
+CE root
+
+# who I masquerade as (null for no masquerading) (see also $=M)
+DM
+
+# my name for error messages
+DnMAILER-DAEMON
+
+
+CPREDIRECT
+
+# Configuration version number
+DZ8.8.8
+
+
+###############
+#   Options   #
+###############
+
+# strip message body to 7 bits on input?
+O SevenBitInput=False
+
+# 8-bit data handling
+O EightBitMode=pass8
+
+
+# wait for alias file rebuild (default units: minutes)
+O AliasWait=10
+
+# location of alias file
+O AliasFile=/etc/aliases
+
+# minimum number of free blocks on filesystem
+O MinFreeBlocks=100
+
+# maximum message size
+#O MaxMessageSize=1000000
+
+# substitution for space (blank) characters
+O BlankSub=.
+
+# avoid connecting to "expensive" mailers on initial submission?
+O HoldExpensive=False
+
+# checkpoint queue runs after every N successful deliveries
+#O CheckpointInterval=10
+
+# default delivery mode
+O DeliveryMode=background
+
+# automatically rebuild the alias database?
+#O AutoRebuildAliases
+
+# error message header/file
+#O ErrorHeader=/etc/sendmail.oE
+
+# error mode
+#O ErrorMode=print
+
+# save Unix-style "From_" lines at top of header?
+#O SaveFromLine
+
+# temporary file mode
+O TempFileMode=0600
+
+# match recipients against GECOS field?
+#O MatchGECOS
+
+# maximum hop count
+#O MaxHopCount=17
+
+# location of help file
+O HelpFile=/usr/lib/sendmail.hf
+
+# ignore dots as terminators in incoming messages?
+#O IgnoreDots
+
+# name resolver options
+#O ResolverOptions=+AAONLY
+
+# deliver MIME-encapsulated error messages?
+O SendMimeErrors=True
+
+# Forward file search path
+O ForwardPath=$z/.forward.$w:$z/.forward
+
+# open connection cache size
+O ConnectionCacheSize=2
+
+# open connection cache timeout
+O ConnectionCacheTimeout=5m
+
+# persistent host status directory
+#O HostStatusDirectory=.hoststat
+
+# single thread deliveries (requires HostStatusDirectory)?
+#O SingleThreadDelivery
+
+# use Errors-To: header?
+O UseErrorsTo=False
+
+# log level
+O LogLevel=9
+
+# send to me too, even in an alias expansion?
+#O MeToo
+
+# verify RHS in newaliases?
+O CheckAliases=False
+
+# default messages to old style headers if no special punctuation?
+O OldStyleHeaders=True
+
+# SMTP daemon options
+#O DaemonPortOptions=Port=esmtp
+
+# privacy flags
+O PrivacyOptions=authwarnings
+
+# who (if anyone) should get extra copies of error messages
+#O PostMasterCopy=Postmaster
+
+# slope of queue-only function
+#O QueueFactor=600000
+
+# queue directory
+O QueueDirectory=/var/spool/mqueue
+
+# timeouts (many of these)
+#O Timeout.initial=5m
+#O Timeout.connect=5m
+#O Timeout.iconnect=5m
+#O Timeout.helo=5m
+#O Timeout.mail=10m
+#O Timeout.rcpt=1h
+#O Timeout.datainit=5m
+#O Timeout.datablock=1h
+#O Timeout.datafinal=1h
+#O Timeout.rset=5m
+#O Timeout.quit=2m
+#O Timeout.misc=2m
+#O Timeout.command=1h
+#O Timeout.ident=30s
+#O Timeout.fileopen=60s
+O Timeout.queuereturn=5d
+#O Timeout.queuereturn.normal=5d
+#O Timeout.queuereturn.urgent=2d
+#O Timeout.queuereturn.non-urgent=7d
+O Timeout.queuewarn=4h
+#O Timeout.queuewarn.normal=4h
+#O Timeout.queuewarn.urgent=1h
+#O Timeout.queuewarn.non-urgent=12h
+#O Timeout.hoststatus=30m
+
+# should we not prune routes in route-addr syntax addresses?
+#O DontPruneRoutes
+
+# queue up everything before forking?
+O SuperSafe=True
+
+# status file
+O StatusFile=/etc/sendmail.st
+
+# time zone handling:
+#  if undefined, use system default
+#  if defined but null, use TZ envariable passed in
+#  if defined and non-null, use that info
+#O TimeZoneSpec=
+
+# default UID (can be username or userid:groupid)
+O DefaultUser=1:1
+
+# list of locations of user database file (null means no lookup)
+#O UserDatabaseSpec=/etc/userdb
+
+# fallback MX host
+#O FallbackMXhost=fall.back.host.net
+
+# if we are the best MX host for a site, try it directly instead of config err
+#O TryNullMXList
+
+# load average at which we just queue messages
+#O QueueLA=8
+
+# load average at which we refuse connections
+#O RefuseLA=12
+
+# maximum number of children we allow at one time
+#O MaxDaemonChildren=12
+
+# maximum number of new connections per second
+#O ConnectionRateThrottle=3
+
+# work recipient factor
+#O RecipientFactor=30000
+
+# deliver each queued job in a separate process?
+#O ForkEachJob
+
+# work class factor
+#O ClassFactor=1800
+
+# work time factor
+#O RetryFactor=90000
+
+# shall we sort the queue by hostname first?
+#O QueueSortOrder=priority
+
+# minimum time in queue before retry
+#O MinQueueAge=30m
+
+# default character set
+#O DefaultCharSet=iso-8859-1
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+#O ServiceSwitchFile=/etc/service.switch
+
+# hosts file (normally /etc/hosts)
+#O HostsFile=/etc/hosts
+
+# dialup line delay on connection failure
+#O DialDelay=10s
+
+# action to take if there are no recipients in the message
+#O NoRecipientAction=add-to-undisclosed
+
+# chrooted environment for writing to files
+#O SafeFileEnvironment=/arch
+
+# are colons OK in addresses?
+#O ColonOkInAddr
+
+# how many jobs can you process in the queue?
+#O MaxQueueRunSize=10000
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+#O DontExpandCnames
+
+# SMTP initial login message (old $e macro)
+O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
+
+# UNIX initial From header format (old $l macro)
+O UnixFromLine=From $g  $d
+
+# delimiter (operator) characters (old $o macro)
+O OperatorChars=.:%@!^/[]+
+
+# shall I avoid calling initgroups(3) because of high NIS costs?
+#O DontInitGroups
+
+# are group-writable :include: and .forward files (un)trustworthy?
+#O UnsafeGroupWrites
+
+# where do errors that occur when sending errors get sent?
+#O DoubleBounceAddress
+
+# what user id do we assume for the majority of the processing?
+#O RunAsUser=sendmail
+
+###########################
+#   Message precedences   #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+#   Trusted users   #
+#####################
+
+# this is equivalent to setting class "t"
+#Ft/etc/sendmail.ct
+Troot
+Tdaemon
+Tuucp
+
+#########################
+#   Format of headers   #
+#########################
+
+H?P?Return-Path: <$g>
+HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
+	$.by $j ($v/$Z)$?r with $r$. id $i$?u
+	for $u; $|;
+	$.$b
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: $?x$x <$g>$|$g$.
+H?F?From: $?x$x <$g>$|$g$.
+H?x?Full-Name: $x
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+#
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+############################################
+###  Ruleset 3 -- Name Canonicalization  ###
+############################################
+S3
+
+# handle null input (translate to <@> special case)
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R@ $* <@>		$: @ $1				unmark @host:...
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:include: $* <@>	$: :include: $1			unmark :include:...
+R$* [ $* : $* ] <@>	$: $1 [ $2 : $3 ]		unmark IPv6 addrs
+R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# strip angle brackets -- note RFC733 heuristic to get innermost item
+R$*			$: < $1 >			housekeeping <>
+R$+ < $* >		   < $2 >			strip excess on left
+R< $* > $+		   < $1 >			strip excess on right
+R<>			$@ < @ >			MAIL FROM:<> case
+R< $+ >			$: $1				remove housekeeping <>
+
+# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
+R@ $+ , $+		@ $1 : $2			change all "," to ":"
+
+# localize and dispose of route-based addresses
+R@ $+ : $+		$@ $>96 < @$1 > : $2		handle <route-addr>
+
+# find focus for list syntax
+R $+ : $* ; @ $+	$@ $>96 $1 : $2 ; < @ $3 >	list syntax
+R $+ : $* ;		$@ $1 : $2;			list syntax
+
+# find focus for @ syntax addresses
+R$+ @ $+		$: $1 < @ $2 >			focus on domain
+R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
+R$+ < @ $+ >		$@ $>96 $1 < @ $2 >		already canonical
+
+# do some sanity checking
+R$* < @ $* : $* > $*	$1 < @ $2 $3 > $4		nix colons in addrs
+
+# convert old-style addresses to a domain-based address
+R$- ! $+		$@ $>96 $2 < @ $1 .UUCP >	resolve uucp names
+R$+ . $- ! $+		$@ $>96 $3 < @ $1 . $2 >		domain uucps
+R$+ ! $+		$@ $>96 $2 < @ $1 .UUCP >	uucp subdomains
+
+# if we have % signs, take the rightmost one
+R$* % $*		$1 @ $2				First make them all @s.
+R$* @ $* @ $*		$1 % $2 @ $3			Undo all but the last.
+R$* @ $*		$@ $>96 $1 < @ $2 >		Insert < > and finish
+
+# else we must be a local name
+R$*			$@ $>96 $1
+
+
+################################################
+###  Ruleset 96 -- bottom half of ruleset 3  ###
+################################################
+
+S96
+
+# handle special cases for local names
+R$* < @ localhost > $*		$: $1 < @ $j . > $2		no domain at all
+R$* < @ localhost . $m > $*	$: $1 < @ $j . > $2		local domain
+R$* < @ localhost . UUCP > $*	$: $1 < @ $j . > $2		.UUCP domain
+R$* < @ [ $+ ] > $*		$: $1 < @@ [ $2 ] > $3		mark [a.b.c.d]
+R$* < @@ $=w > $*		$: $1 < @ $j . > $3		self-literal
+R$* < @@ $+ > $*		$@ $1 < @ $2 > $3		canon IP addr
+
+# look up domains in the domain table
+#R$* < @ $+ > $* 		$: $1 < @ $(domaintable $2 $) > $3
+
+
+# if really UUCP, handle it immediately
+
+# try UUCP traffic as a local address
+R$* < @ $+ . UUCP > $*		$: $1 < @ $[ $2 $] . UUCP . > $3
+R$* < @ $+ . . UUCP . > $*		$@ $1 < @ $2 . > $3
+
+# pass to name server to make hostname canonical
+R$* < @ $* $~P > $*		$: $1 < @ $[ $2 $3 $] > $4
+
+# local host aliases and pseudo-domains are always canonical
+R$* < @ $=w > $*		$: $1 < @ $2 . > $3
+R$* < @ $j > $*			$: $1 < @ $j . > $2
+R$* < @ $=M > $*		$: $1 < @ $2 . > $3
+R$* < @ $* $=P > $*		$: $1 < @ $2 $3 . > $4
+R$* < @ $* . . > $*		$1 < @ $2 . > $3
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off possibly canonical name
+R$* < @ $+ . > $*	$1 < @ $2 > $3
+
+# eliminate internal code -- should never get this far!
+R$* < @ *LOCAL* > $*	$1 < @ $j > $2
+
+# externalize local domain info
+R$* < $+ > $*		$1 $2 $3			defocus
+R@ $+ : @ $+ : $+	@ $1 , @ $2 : $3		<route-addr> canonical
+R@ $*			$@ @ $1				... and exit
+
+# UUCP must always be presented in old form
+R$+ @ $- . UUCP		$2!$1				u@h.UUCP => h!u
+
+# delete duplicate local names
+R$+ % $=w @ $=w		$1 @ $2				u%host@host => u@host
+
+
+
+##############################################################
+###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
+###		   (used for recursive calls)		   ###
+##############################################################
+
+S97
+R$*			$: $>3 $1
+R$*			$@ $>0 $1
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*			$: $>Parse0 $1		initial parsing
+R$*			$: $>98 $1		handle local hacks
+R$*			$: $>Parse1 $1		final parsing
+
+SParse0
+R<@>			$#local $: <@>		special case error msgs
+R$* : $* ; <@>		$#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses"
+R<@ $+>			$#error $@ 5.1.1 $: "user address required"
+R$*			$: <> $1
+R<> $* < @ [ $+ ] > $*	$1 < @ [ $2 ] > $3
+R<> $* <$* : $* > $*	$#error $@ 5.1.1 $: "colon illegal in host name part"
+R<> $*			$1
+R$* < @ . $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+R$* < @ $* .. $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+
+# handle numeric address spec
+R$* < @ [ $+ ] > $*	$: $>98 $1 < @ [ $2 ] > $3	numeric internet spec
+R$* < @ [ $+ ] > $*	$#esmtp $@ [$2] $: $1 < @ [$2] > $3	still numeric: send
+
+# now delete the local info -- note $=O to find characters that cause forwarding
+R$* < @ > $*		$@ $>Parse0 $>3 $1		user@ => user
+R< @ $=w . > : $*	$@ $>Parse0 $>3 $2		@here:... -> ...
+R$- < @ $=w . >		$: $(dequote $1 $) < @ $2 . >	dequote "foo"@here
+R< @ $+ >		$#error $@ 5.1.1 $: "user address required"
+R$* $=O $* < @ $=w . >	$@ $>Parse0 $>3 $1 $2 $3	...@here -> ...
+
+SParse1
+# handle virtual users
+#R$+ < @ $=w . > 	$: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+#R<@> $+ < @ $+ . >	$: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+#R<@> $+			$: $1
+#R< error : $- $+ > $* 	$#error $@ $( dequote $1 $) $: $2
+#R< $+ > $+ < @ $+ >	$: $>97 $1
+
+# short circuit local delivery so forwarded email works
+#R$+ . USENET < @ $=w . >	$#usenet $: $1		handle usenet specially
+R$=L < @ $=w . >	$#local $: @ $1		special local names
+R$+ < @ $=w . >		$#local $: $1			regular local name
+
+# not local -- try mailer table lookup
+#R$* <@ $+ > $*		$: < $2 > $1 < @ $2 > $3	extract host name
+#R< $+ . > $*		$: < $1 > $2			strip trailing dot
+#R< $+ > $*		$: < $(mailertable $1 $) > $2	lookup
+#R< $~[ : $+ > $* 	$>95 < $1 : $2 > $3		check -- resolved?
+#R< $+ > $*		$: $>90 <$1> $2			try domain
+
+# resolve remotely connected UUCP links (if any)
+
+# resolve fake top level domains by forwarding to other hosts
+
+
+
+# pass names that still have a host to a smarthost (if defined)
+R$* < @ $* > $*		$: $>95 < $S > $1 < @ $2 > $3	glue on smarthost name
+
+# deal with other remote names
+R$* < @$* > $*		$#esmtp $@ $2 $: $1 < @ $2 > $3		user@host.domain
+
+# if this is quoted, strip the quotes and try again
+R$+			$: $(dequote $1 $)		strip quotes
+R$+ $=O $+		$@ $>97 $1 $2 $3			try again
+
+# handle locally delivered names
+R$=L			$#local $: @ $1			special local names
+R$+			$#local $: $1			regular local names
+
+###########################################################################
+###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
+###########################################################################
+
+S5
+
+# deal with plussed users so aliases work nicely
+R$+ + *			$#local $@ $&h $: $1
+R$+ + $*		$#local $@ + $2 $: $1 + *
+
+# prepend an empty "forward host" on the front
+R$+			$: <> $1
+
+# send unrecognized local users to a relay host
+#R< > $+ 		$: < $L . > $( user $1 $)	look up user
+#R< $* > $+ <> $*	$: < > $2 $3			found; strip $L
+#R< $* . > $+		$: < $1 > $2			strip extra dot
+
+# see if we have a relay or a hub
+R< > $+			$: < $H > $1			try hub
+R< > $+			$: < $R > $1			try relay
+R< > $+			$: < > < $1 $(dequote "" $&h $) >	nope, restore +detail
+R< > < $+ + $* > $*	   < > < $1 > + $2 $3		find the user part
+R< > < $+ > + $*	$#local $@ $2 $: @ $1		strip the extra +
+R< > < $+ >		$@ $1				no +detail
+R$+			$: $1 $(dequote "" $&h $)	add +detail back in
+R< local : $* > $*	$: $>95 < local : $1 > $2	no host extension
+R< error : $* > $*	$: $>95 < error : $1 > $2	no host extension
+R< $- : $+ > $+		$: $>95 < $1 : $2 > $3 < @ $2 >
+R< $+ > $+		$@ $>95 < $1 > $2 < @ $1 >
+
+###################################################################
+###  Ruleset 90 -- try domain part of mailertable entry 	###
+###################################################################
+
+S90
+#R$* <$- . $+ > $*	$: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
+#R$* <$~[ : $+ > $*		$>95 < $2 : $3 > $4	check -- resolved?
+#R$* < . $+ > $* 		$@ $>90 $1 . <$2> $3	no -- strip & try again
+#R$* < $* > $*		$: < $(mailertable . $@ $1$2 $) > $3	try "."
+#R< $~[ : $+ > $*		$>95 < $1 : $2 > $3	"." found?
+#R< $* > $*			$@ $2			no mailertable match
+
+###################################################################
+###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple	###
+###################################################################
+
+S95
+R< > $*				$@ $1			strip off null relay
+R< error : $- $+ > $*		$#error $@ $( dequote $1 $) $: $2
+R< local : $* > $*		$>CanonLocal < $1 > $2
+R< $- : $+ @ $+ > $*<$*>$*	$# $1 $@ $3 $: $2<@$3>	use literal user
+R< $- : $+ > $*			$# $1 $@ $2 $: $3	try qualified mailer
+R< $=w > $*			$@ $2			delete local host
+R< $+ > $*			$#relay $@ $1 $: $2	use unqualified mailer
+
+###################################################################
+###  Ruleset CanonLocal -- canonify local: syntax		###
+###################################################################
+
+SCanonLocal
+# strip trailing dot from any host name that may appear
+R< $* > $* < @ $* . >		$: < $1 > $2 < @ $3 >
+
+# handle local: syntax -- use old user, either with or without host
+R< > $* < @ $* > $*		$#local $@ $1@$2 $: $1
+R< > $+				$#local $@ $1    $: $1
+
+# handle local:user@host syntax -- ignore host part
+R< $+ @ $+ > $* < @ $* >	$: < $1 > $3 < @ $4 >
+
+# handle local:user syntax
+R< $+ > $* <@ $* > $*		$#local $@ $2@$3 $: $1
+R< $+ > $* 			$#local $@ $2    $: $1
+
+###################################################################
+###  Ruleset 93 -- convert header names to masqueraded form	###
+###################################################################
+
+S93
+
+# handle generics database
+#R$+ < @ $=G . >	$: < $1@$2 > $1 < @ $2 . > @	mark
+#R$+ < @ *LOCAL* >	$: < $1@$j > $1 < @ *LOCAL* > @	mark
+#R< $+ > $+ < $* > @	$: < $(generics $1 $: $) > $2 < $3 >
+#R< > $+ < @ $+ > 	$: < $(generics $1 $: $) > $1 < @ $2 >
+#R< $* @ $* > $* < $* >	$@ $>3 $1 @ $2			found qualified
+#R< $+ > $* < $* >	$: $>3 $1 @ *LOCAL*		found unqualified
+#R< > $*			$: $1				not found
+
+# special case the users that should be exposed
+R$=E < @ *LOCAL* >	$@ $1 < @ $j . >		leave exposed
+R$=E < @ $=M . >	$@ $1 < @ $2 . >
+R$=E < @ $=w . >	$@ $1 < @ $2 . >
+
+# handle domain-specific masquerading
+R$* < @ $=M . > $*	$: $1 < @ $2 . @ $M > $3	convert masqueraded doms
+R$* < @ $=w . > $*	$: $1 < @ $2 . @ $M > $3
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . @ $M > $2
+R$* < @ $+ @ > $*	$: $1 < @ $2 > $3		$M is null
+R$* < @ $+ @ $+ > $*	$: $1 < @ $3 . > $4		$M is not null
+
+###################################################################
+###  Ruleset 94 -- convert envelope names to masqueraded form	###
+###################################################################
+
+S94
+#R$+			$@ $>93 $1
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . > $2
+
+###################################################################
+###  Ruleset 98 -- local part of ruleset zero (can be null)	###
+###################################################################
+
+S98
+
+# addresses sent to foo@host.REDIRECT will give a 551 error code
+R$* < @ $+ .REDIRECT. >		$: $1 < @ $2 . REDIRECT . > < ${opMode} >
+R$* < @ $+ .REDIRECT. > <i>	$: $1 < @ $2 . REDIRECT. >
+R$* < @ $+ .REDIRECT. > < $- >	$# error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>
+#
+######################################################################
+######################################################################
+#####
+#####			MAILER DEFINITIONS
+#####
+######################################################################
+######################################################################
+
+
+##################################################
+###   Local and Program Mailer specification   ###
+##################################################
+
+#####  @(#)local.m4	8.23 (Berkeley) 5/31/96  #####
+
+Mlocal,		P=/bin/mail, F=lsDFMAw5:/|@qrmn9, S=10/30, R=20/40,
+		T=DNS/RFC822/X-Unix,
+		A=mail -d $u
+Mprog,		P=/bin/sh, F=lsDFMoqeu9, S=10/30, R=20/40, D=$z:/,
+		T=X-Unix,
+		A=sh -c $u
+
+#
+#  Envelope sender rewriting
+#
+S10
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>94 $1		do masquerading
+
+#
+#  Envelope recipient rewriting
+#
+S20
+R$+ < @ $* >		$: $1			strip host part
+
+#
+#  Header sender rewriting
+#
+S30
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>93 $1		do masquerading
+
+#
+#  Header recipient rewriting
+#
+S40
+R$+			$: $>50 $1		add local domain if needed
+#R$*			$: $>93 $1		do all-masquerading
+
+#
+#  Common code to add local domain name (only if always-add-domain)
+#
+S50
+#R$* < @ $* > $* 	$@ $1 < @ $2 > $3		already fully qualified
+#R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+#####################################
+###   SMTP Mailer specification   ###
+#####################################
+
+#####  @(#)smtp.m4	8.33 (Berkeley) 7/9/96  #####
+
+Msmtp,		P=[IPC], F=mDFMuX, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mesmtp,		P=[IPC], F=mDFMuXa, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Msmtp8,		P=[IPC], F=mDFMuX8, S=11/31, R=21, E=\r\n, L=990,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+Mrelay,		P=[IPC], F=mDFMuXa8, S=11/31, R=61, E=\r\n, L=2040,
+		T=DNS/RFC822/SMTP,
+		A=IPC $h
+
+#
+#  envelope sender rewriting
+#
+S11
+R$+			$: $>51 $1			sender/recipient common
+R$* :; <@>		$@				list:; special case
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>94 $1			do masquerading
+
+
+#
+#  envelope recipient rewriting --
+#  also header recipient if not masquerading recipients
+#
+S21
+R$+			$: $>51 $1			sender/recipient common
+R$+			$: $>61 $1			qualify unqual'ed names
+
+
+#
+#  header sender and masquerading header recipient rewriting
+#
+S31
+R$+			$: $>51 $1			sender/recipient common
+R:; <@>			$@				list:; special case
+
+# do special header rewriting
+R$* <@> $*		$@ $1 <@> $2			pass null host through
+R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>93 $1			do masquerading
+
+
+#
+#  convert pseudo-domain addresses to real domain addresses
+#
+S51
+
+# pass <route-addr>s through
+R< @ $+ > $*		$@ < @ $1 > $2			resolve <route-addr>
+
+# output fake domains as user%fake@relay
+
+# do UUCP heuristics; note that these are shared with UUCP mailers
+R$+ < @ $+ .UUCP. >	$: < $2 ! > $1			convert to UUCP form
+R$+ < @ $* > $*		$@ $1 < @ $2 > $3		not UUCP form
+
+# leave these in .UUCP form to avoid further tampering
+R< $&h ! > $- ! $+	$@ $2 < @ $1 .UUCP. >
+R< $&h ! > $-.$+ ! $+	$@ $3 < @ $1.$2 >
+R< $&h ! > $+		$@ $1 < @ $&h .UUCP. >
+R< $+ ! > $+		$: $1 ! $2 < @ $Y >		use UUCP_RELAY
+R$+ < @ $+ : $+ >	$@ $1 < @ $3 >			strip mailer: part
+R$+ < @ >		$: $1 < @ *LOCAL* >		if no UUCP_RELAY
+
+
+#
+#  common sender and masquerading recipient rewriting
+#
+S61
+
+R$* < @ $* > $*		$@ $1 < @ $2 > $3		already fully qualified
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+
+#
+#  relay mailer header masquerading recipient rewriting
+#
+S71
+
+R$+			$: $>61 $1
+R$+			$: $>93 $1
diff --git a/cf/cf/python.cs.mc b/cf/cf/python.cs.mc
new file mode 100644
index 0000000..e049d66
--- /dev/null
+++ b/cf/cf/python.cs.mc
@@ -0,0 +1,63 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for a specific
+#  machine in the Computer Science Division at Berkeley, and should
+#  not be used elsewhere.   It is provided on the sendmail distribution
+#  as a sample only.
+#
+#  This file is for a home machine that wants to masquerade as an
+#  on-campus machine.  Additionally, all addresses without a hostname
+#  will be forwarded to that machine.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)python.cs.mc	8.4 (Berkeley) 3/23/96')
+OSTYPE(bsd4.4)dnl
+DOMAIN(CS.Berkeley.EDU)dnl
+define(`LOCAL_RELAY', vangogh.CS.Berkeley.EDU)dnl
+MASQUERADE_AS(vangogh.CS.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+
+# accept mail sent to the domain head
+DDBostic.COM
+
+LOCAL_RULE_0
+# accept mail sent to the domain head
+R< @ $D . > : $*		$@ $>7 $1		@here:... -> ...
+R$* $=O $* < @ $D . >		$@ $>7 $1 $2 $3		...@here -> ...
+R$* < @ $D . >			$#local $: $1		user@here -> user
diff --git a/cf/cf/s2k-osf1.mc b/cf/cf/s2k-osf1.mc
new file mode 100644
index 0000000..ed2d488
--- /dev/null
+++ b/cf/cf/s2k-osf1.mc
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for OSF/1.
+#  It applies only to the Sequoia 2000 Project at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)s2k-osf1.mc	8.5 (Berkeley) 6/3/97')
+OSTYPE(osf1)dnl
+DOMAIN(S2K.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/s2k-ultrix4.mc b/cf/cf/s2k-ultrix4.mc
new file mode 100644
index 0000000..12fb960
--- /dev/null
+++ b/cf/cf/s2k-ultrix4.mc
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for Ultrix 4.x.
+#  It applies only to the Sequoia 2000 Project at Berkeley,
+#  and should not be used elsewhere.   It is provided on the sendmail
+#  distribution as a sample only.  To create your own configuration
+#  file, create an appropriate domain file in ../domain, change the
+#  `DOMAIN' macro below to reference that file, and copy the result
+#  to a name of your own choosing.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)s2k-ultrix4.mc	8.5 (Berkeley) 6/3/97')
+OSTYPE(ultrix4)dnl
+DOMAIN(S2K.Berkeley.EDU)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
diff --git a/cf/cf/tcpproto.mc b/cf/cf/tcpproto.mc
new file mode 100644
index 0000000..d023185
--- /dev/null
+++ b/cf/cf/tcpproto.mc
@@ -0,0 +1,54 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is the prototype file for a configuration that supports nothing
+#  but basic SMTP connections via TCP.
+#
+#  You MUST change the `OSTYPE' macro to specify the operating system
+#  on which this will run; this will set the location of various
+#  support files for your operating system environment.  You MAY
+#  create a domain file in ../domain and reference it by adding a
+#  `DOMAIN' macro after the `OSTYPE' macro.  I recommend that you
+#  first copy this to another file name so that new sendmail releases
+#  will not trash your changes.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)tcpproto.mc	8.5 (Berkeley) 3/23/96')
+OSTYPE(unknown)
+FEATURE(nouucp)
+MAILER(local)
+MAILER(smtp)
diff --git a/cf/cf/ucbarpa.mc b/cf/cf/ucbarpa.mc
new file mode 100644
index 0000000..5fe99d0
--- /dev/null
+++ b/cf/cf/ucbarpa.mc
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This machine has been decommissioned at Berkeley, and hence should
+#  not be considered to be tested.  This file is provided as an example
+#  only, of how you might set up a joint SMTP/UUCP configuration.  At
+#  this point I recommend using `FEATURE(mailertable)' instead of
+#  `SITECONFIG'.  See also ucbvax.mc.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)ucbarpa.mc	8.4 (Berkeley) 3/23/96')
+DOMAIN(CS.Berkeley.EDU)dnl
+OSTYPE(bsd4.4)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+MAILER(uucp)dnl
+SITECONFIG(uucp.ucbarpa, ucbarpa, U)
diff --git a/cf/cf/ucbvax.mc b/cf/cf/ucbvax.mc
new file mode 100644
index 0000000..89a0f10
--- /dev/null
+++ b/cf/cf/ucbvax.mc
@@ -0,0 +1,112 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This machine has been decommissioned at Berkeley, and hence should
+#  not be considered to be tested.  This file is provided as an example
+#  only, of how you might set up a fairly complex configuration.
+#  Ucbvax was our main relay (both SMTP and UUCP) for many years.
+#  At this point I recommend using `FEATURE(mailertable)' instead of
+#  `SITECONFIG' for routing of UUCP within your domain.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)ucbvax.mc	8.6 (Berkeley) 3/23/96')
+OSTYPE(bsd4.3)
+DOMAIN(CS.Berkeley.EDU)
+MASQUERADE_AS(CS.Berkeley.EDU)
+MAILER(local)
+MAILER(smtp)
+MAILER(uucp)
+undefine(`UUCP_RELAY')dnl
+
+LOCAL_CONFIG
+DDBerkeley.EDU
+
+# names for which we act as a local forwarding agent
+CF CS
+FF/etc/sendmail.cw
+
+# local UUCP connections, and our local uucp name
+SITECONFIG(uucp.ucbvax, ucbvax, U)
+
+# remote UUCP connections, and the machine they are on
+SITECONFIG(uucp.ucbarpa, ucbarpa.Berkeley.EDU, W)
+
+SITECONFIG(uucp.cogsci, cogsci.Berkeley.EDU, X)
+
+LOCAL_RULE_3
+# map old UUCP names into Internet names
+UUCPSMTP(bellcore,	bellcore.com)
+UUCPSMTP(decvax,	decvax.dec.com)
+UUCPSMTP(decwrl,	decwrl.dec.com)
+UUCPSMTP(hplabs,	hplabs.hp.com)
+UUCPSMTP(lbl-csam,	lbl-csam.arpa)
+UUCPSMTP(pur-ee,	ecn.purdue.edu)
+UUCPSMTP(purdue,	purdue.edu)
+UUCPSMTP(research,	research.att.com)
+UUCPSMTP(sdcarl,	sdcarl.ucsd.edu)
+UUCPSMTP(sdcsvax,	sdcsvax.ucsd.edu)
+UUCPSMTP(ssyx,		ssyx.ucsc.edu)
+UUCPSMTP(sun,		sun.com)
+UUCPSMTP(ucdavis,	ucdavis.ucdavis.edu)
+UUCPSMTP(ucivax,	ics.uci.edu)
+UUCPSMTP(ucla-cs,	cs.ucla.edu)
+UUCPSMTP(ucla-se,	seas.ucla.edu)
+UUCPSMTP(ucsbcsl,	ucsbcsl.ucsb.edu)
+UUCPSMTP(ucscc,		c.ucsc.edu)
+UUCPSMTP(ucsd,		ucsd.edu)
+UUCPSMTP(ucsfcgl,	cgl.ucsf.edu)
+UUCPSMTP(unmvax,	unmvax.cs.unm.edu)
+UUCPSMTP(uwvax,		spool.cs.wisc.edu)
+
+LOCAL_RULE_0
+
+# make sure we handle the local domain as absolute
+R$* <  @ $* $D > $*		$: $1 < @ $2 $D . > $3
+
+# handle names we forward for as though they were local, so we will use UDB
+R< @ $=F . $D . > : $*		$@ $>7 $2		@here:... -> ...
+R< @ $D . > : $*		$@ $>7 $1		@here:... -> ...
+R$* $=O $* < @ $=F . $D . >	$@ $>7 $1 $2 $3		...@here -> ...
+R$* $=O $* < @ $D . >		$@ $>7 $1 $2 $3		...@here -> ...
+
+R$* < @ $=F . $D . >		$#local $: $1		use UDB
+
+# handle local UUCP connections in the Berkeley.EDU domain
+R$+<@cnmat.$D . >		$#uucp$@cnmat$:$1
+R$+<@cnmat.CS.$D . >		$#uucp$@cnmat$:$1
+R$+<@craig.$D . >		$#uucp$@craig$:$1
+R$+<@craig.CS.$D . >		$#uucp$@craig$:$1
diff --git a/cf/cf/uucpproto.mc b/cf/cf/uucpproto.mc
new file mode 100644
index 0000000..6a21156
--- /dev/null
+++ b/cf/cf/uucpproto.mc
@@ -0,0 +1,54 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is the prototype for a configuration that only supports UUCP
+#  and does not have DNS support at all.
+#
+#  You MUST change the `OSTYPE' macro to specify the operating system
+#  on which this will run; this will set the location of various
+#  support files for your operating system environment.  You MAY
+#  create a domain file in ../domain and reference it by adding a
+#  `DOMAIN' macro after the `OSTYPE' macro.  I recommend that you
+#  first copy this to another file name so that new sendmail releases
+#  will not trash your changes.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)uucpproto.mc	8.6 (Berkeley) 3/23/96')
+OSTYPE(unknown)
+FEATURE(nodns)dnl
+MAILER(local)dnl
+MAILER(uucp)dnl
diff --git a/cf/cf/vangogh.cs.mc b/cf/cf/vangogh.cs.mc
new file mode 100644
index 0000000..95a15e9
--- /dev/null
+++ b/cf/cf/vangogh.cs.mc
@@ -0,0 +1,54 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This is a Berkeley-specific configuration file for a specific
+#  machine in the Computer Science Division at Berkeley, and should
+#  not be used elsewhere.   It is provided on the sendmail distribution
+#  as a sample only.
+#
+#  This file is for the BSD development machine; it has some parameters
+#  set up (to stress sendmail) and accepts mail for some other machines.
+#
+
+divert(0)dnl
+VERSIONID(`@(#)vangogh.cs.mc	8.5 (Berkeley) 3/23/96')
+DOMAIN(CS.Berkeley.EDU)dnl
+OSTYPE(bsd4.4)dnl
+MAILER(local)dnl
+MAILER(smtp)dnl
+define(`MCI_CACHE_SIZE', 5)
+Cw okeeffe.CS.Berkeley.EDU
+Cw python.CS.Berkeley.EDU
diff --git a/cf/domain/Berkeley.EDU.m4 b/cf/domain/Berkeley.EDU.m4
new file mode 100644
index 0000000..2bad42b
--- /dev/null
+++ b/cf/domain/Berkeley.EDU.m4
@@ -0,0 +1,45 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+VERSIONID(`@(#)Berkeley.EDU.m4	8.9 (Berkeley) 10/5/95')
+DOMAIN(berkeley-only)dnl
+define(`BITNET_RELAY', `bitnet-relay.Berkeley.EDU')dnl
+define(`UUCP_RELAY', `uucp-relay.Berkeley.EDU')dnl
+define(`confFORWARD_PATH', `$z/.forward.$w:$z/.forward')dnl
+define(`confCW_FILE', `-o /etc/sendmail.cw')dnl
+define(`confDONT_INIT_GROUPS', True)dnl
+FEATURE(redirect)dnl
+FEATURE(use_cw_file)dnl
+FEATURE(stickyhost)dnl
diff --git a/cf/domain/CS.Berkeley.EDU.m4 b/cf/domain/CS.Berkeley.EDU.m4
new file mode 100644
index 0000000..97ccfb2
--- /dev/null
+++ b/cf/domain/CS.Berkeley.EDU.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+VERSIONID(`@(#)CS.Berkeley.EDU.m4	8.2 (Berkeley) 4/21/95')
+DOMAIN(Berkeley.EDU)dnl
+HACK(cssubdomain)dnl
+define(`confUSERDB_SPEC',
+	`/usr/sww/share/lib/users.cs.db,/usr/sww/share/lib/users.eecs.db')dnl
diff --git a/cf/domain/EECS.Berkeley.EDU.m4 b/cf/domain/EECS.Berkeley.EDU.m4
new file mode 100644
index 0000000..a41fc7e
--- /dev/null
+++ b/cf/domain/EECS.Berkeley.EDU.m4
@@ -0,0 +1,38 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+VERSIONID(`@(#)EECS.Berkeley.EDU.m4	8.2 (Berkeley) 4/21/95')
+DOMAIN(Berkeley.EDU)dnl
+MASQUERADE_AS(EECS.Berkeley.EDU)dnl
diff --git a/cf/domain/S2K.Berkeley.EDU.m4 b/cf/domain/S2K.Berkeley.EDU.m4
new file mode 100644
index 0000000..4aed130
--- /dev/null
+++ b/cf/domain/S2K.Berkeley.EDU.m4
@@ -0,0 +1,38 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+VERSIONID(`@(#)S2K.Berkeley.EDU.m4	8.2 (Berkeley) 4/21/95')
+DOMAIN(CS.Berkeley.EDU)dnl
+MASQUERADE_AS(postgres.Berkeley.EDU)dnl
diff --git a/cf/domain/berkeley-only.m4 b/cf/domain/berkeley-only.m4
new file mode 100644
index 0000000..ef71071
--- /dev/null
+++ b/cf/domain/berkeley-only.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+VERSIONID(`@(#)unspecified-domain.m4	8.2 (Berkeley) 4/21/95')
+errprint(`*** ERROR: You are trying to use the Berkeley sample configuration')
+errprint(`	files outside of the Computer Science Division at Berkeley.')
+errprint(`	The configuration (.mc) files must be customized to reference')
+errprint(`	domain files appropriate for your environment.')
diff --git a/cf/domain/generic.m4 b/cf/domain/generic.m4
new file mode 100644
index 0000000..ca91f50
--- /dev/null
+++ b/cf/domain/generic.m4
@@ -0,0 +1,47 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  The following is a generic domain file.  You should be able to
+#  use it anywhere.  If you want to customize it, copy it to a file
+#  named with your domain and make the edits; then, copy the appropriate
+#  .mc files and change `DOMAIN(generic)' to reference your updated domain
+#  files.
+#
+divert(0)
+VERSIONID(`@(#)generic.m4	8.3 (Berkeley) 3/24/96')
+define(`confFORWARD_PATH', `$z/.forward.$w:$z/.forward')dnl
+FEATURE(redirect)dnl
+FEATURE(use_cw_file)dnl
diff --git a/cf/feature/allmasquerade.m4 b/cf/feature/allmasquerade.m4
new file mode 100644
index 0000000..c7cbffa
--- /dev/null
+++ b/cf/feature/allmasquerade.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)allmasquerade.m4	8.2 (Berkeley) 1/22/94')
+divert(-1)
+
+
+define(`_ALL_MASQUERADE_', 1)
diff --git a/cf/feature/always_add_domain.m4 b/cf/feature/always_add_domain.m4
new file mode 100644
index 0000000..dd572c8
--- /dev/null
+++ b/cf/feature/always_add_domain.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)always_add_domain.m4	8.1 (Berkeley) 6/7/93')
+divert(-1)
+
+define(`_ALWAYS_ADD_DOMAIN_', 1)
diff --git a/cf/feature/bestmx_is_local.m4 b/cf/feature/bestmx_is_local.m4
new file mode 100644
index 0000000..3849623
--- /dev/null
+++ b/cf/feature/bestmx_is_local.m4
@@ -0,0 +1,66 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)bestmx_is_local.m4	8.5 (Berkeley) 3/28/97')
+divert(-1)
+
+LOCAL_CONFIG
+# turn on bestMX lookup table
+Kbestmx bestmx
+
+# limit bestmx to these domains
+CB`'_ARG_
+
+LOCAL_NET_CONFIG
+
+# If we are the best MX for a site, then we want to accept
+# its mail as local.  We assume we've already weeded out mail to
+# UUCP sites which are connected to us, which should also have
+# listed us as their best MX.
+#
+# Warning: this may generate a lot of extra DNS traffic -- a
+# lower cost method is to list all the expected best MX hosts
+# in $=w.  This should be fine (and easier to administer) for
+# low to medium traffic hosts.  If you use the limited bestmx
+# by passing in a set of possible domains it will improve things.
+
+ifelse(_ARG_, `', `', `#')dnl		unlimited bestmx
+R$* < @ $* > $*			$: $1 < @ $2 @@ $(bestmx $2 $) > $3
+ifelse(_ARG_, `', `#', `')dnl		limit bestmx to $=B
+R$* < @ $* $=B . > $*		$: $1 < @ $2 $3 . @@ $(bestmx $2 $3 . $) > $4
+R$* $=O $* < @ $* @@ $=w . > $*	$@ $>97 $1 $2 $3
+R$* < @ $* @@ $=w . > $*	$#local $: $1
+R$* < @ $* @@ $* > $*		$: $1 < @ $2 > $4
diff --git a/cf/feature/bitdomain.m4 b/cf/feature/bitdomain.m4
new file mode 100644
index 0000000..85c8cf0
--- /dev/null
+++ b/cf/feature/bitdomain.m4
@@ -0,0 +1,49 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)bitdomain.m4	8.6 (Berkeley) 2/19/94')
+divert(-1)
+
+
+PUSHDIVERT(6)
+Kbitdomain ifelse(_ARG_, `', `hash -o /etc/bitdomain', `_ARG_')
+POPDIVERT
+
+
+PUSHDIVERT(2)
+# handle BITNET mapping
+R$* < @ $+ .BITNET > $*		$: $1 < @ $(bitdomain $2 $: $2.BITNET $) > $3
+POPDIVERT
diff --git a/cf/feature/domaintable.m4 b/cf/feature/domaintable.m4
new file mode 100644
index 0000000..bfad1bc
--- /dev/null
+++ b/cf/feature/domaintable.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)domaintable.m4	8.2 (Berkeley) 8/9/93')
+divert(-1)
+
+define(`DOMAIN_TABLE', ifelse(_ARG_, `', `hash -o /etc/domaintable', `_ARG_'))dnl
diff --git a/cf/feature/genericstable.m4 b/cf/feature/genericstable.m4
new file mode 100644
index 0000000..50fbbd0
--- /dev/null
+++ b/cf/feature/genericstable.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)genericstable.m4	8.1 (Berkeley) 2/11/96')
+divert(-1)
+
+define(`GENERICS_TABLE', ifelse(_ARG_, `', `hash -o /etc/genericstable', `_ARG_'))dnl
diff --git a/cf/feature/limited_masquerade.m4 b/cf/feature/limited_masquerade.m4
new file mode 100644
index 0000000..fc4f5ea
--- /dev/null
+++ b/cf/feature/limited_masquerade.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)limited_masquerade.m4	8.1 (Berkeley) 2/11/96')
+divert(-1)
+
+define(`_LIMITED_MASQUERADE_', 1)
diff --git a/cf/feature/local_procmail.m4 b/cf/feature/local_procmail.m4
new file mode 100644
index 0000000..db0cc87
--- /dev/null
+++ b/cf/feature/local_procmail.m4
@@ -0,0 +1,47 @@
+divert(-1)
+#
+# Copyright (c) 1994 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)local_procmail.m4	8.6 (Berkeley) 10/20/96')
+divert(-1)
+
+define(`LOCAL_MAILER_PATH',
+	ifelse(_ARG_, `',
+		ifdef(`PROCMAIL_MAILER_PATH',
+			PROCMAIL_MAILER_PATH,
+			`/usr/local/bin/procmail'),
+		_ARG_))
+define(`LOCAL_MAILER_FLAGS', `SPfhn9')
+define(`LOCAL_MAILER_ARGS', `procmail -Y -a $h -d $u')
diff --git a/cf/feature/mailertable.m4 b/cf/feature/mailertable.m4
new file mode 100644
index 0000000..fa39997
--- /dev/null
+++ b/cf/feature/mailertable.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)mailertable.m4	8.3 (Berkeley) 8/7/93')
+divert(-1)
+
+define(`MAILER_TABLE', ifelse(_ARG_, `', `hash -o /etc/mailertable', `_ARG_'))dnl
diff --git a/cf/feature/masquerade_entire_domain.m4 b/cf/feature/masquerade_entire_domain.m4
new file mode 100644
index 0000000..d94c007
--- /dev/null
+++ b/cf/feature/masquerade_entire_domain.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)masquerade_entire_domain.m4	8.1 (Berkeley) 2/11/96')
+divert(-1)
+
+define(`_MASQUERADE_ENTIRE_DOMAIN_', 1)
diff --git a/cf/feature/masquerade_envelope.m4 b/cf/feature/masquerade_envelope.m4
new file mode 100644
index 0000000..1e60108
--- /dev/null
+++ b/cf/feature/masquerade_envelope.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)masquerade_envelope.m4	8.1 (Berkeley) 7/9/95')
+divert(-1)
+
+define(`_MASQUERADE_ENVELOPE_', 1)
diff --git a/cf/feature/nocanonify.m4 b/cf/feature/nocanonify.m4
new file mode 100644
index 0000000..0157e6b
--- /dev/null
+++ b/cf/feature/nocanonify.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)nocanonify.m4	8.1 (Berkeley) 6/7/93')
+divert(-1)
+
+define(`_NO_CANONIFY_', 1)
diff --git a/cf/feature/nodns.m4 b/cf/feature/nodns.m4
new file mode 100644
index 0000000..465a5ae
--- /dev/null
+++ b/cf/feature/nodns.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)nodns.m4	8.1 (Berkeley) 8/6/93')
+divert(-1)
+
+undefine(`confBIND_OPTS')dnl
diff --git a/cf/feature/notsticky.m4 b/cf/feature/notsticky.m4
new file mode 100644
index 0000000..027b8e3
--- /dev/null
+++ b/cf/feature/notsticky.m4
@@ -0,0 +1,42 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)notsticky.m4	8.3 (Berkeley) 5/29/95')
+#
+#  This is now the default.  Use ``FEATURE(stickyhost)'' if you want
+#  the old default behaviour.
+#
+divert(-1)
diff --git a/cf/feature/nouucp.m4 b/cf/feature/nouucp.m4
new file mode 100644
index 0000000..8723437
--- /dev/null
+++ b/cf/feature/nouucp.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)nouucp.m4	8.1 (Berkeley) 6/7/93')
+divert(-1)
+
+define(`_NO_UUCP_', 1)
diff --git a/cf/feature/nullclient.m4 b/cf/feature/nullclient.m4
new file mode 100644
index 0000000..6eaa8c1
--- /dev/null
+++ b/cf/feature/nullclient.m4
@@ -0,0 +1,72 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+ifdef(`SMTP_MAILER_FLAGS',, `define(`SMTP_MAILER_FLAGS', `')')
+define(_NULL_CLIENT_ONLY_, `1')
+ifelse(_ARG_, `', `errprint(`Feature "nullclient" requires argument')',
+	`define(`MAIL_HUB', _ARG_)')
+POPDIVERT
+
+#
+#  This is used only for relaying mail from a client to a hub when
+#  that client does absolutely nothing else -- i.e., it is a "null
+#  mailer".  In this sense, it acts like the "R" option in Sun
+#  sendmail.
+#
+
+VERSIONID(`@(#)nullclient.m4	8.7 (Berkeley) 2/11/96')
+
+PUSHDIVERT(6)
+# hub host (to which all mail is sent)
+DH`'ifdef(`MAIL_HUB', MAIL_HUB,
+	`errprint(`MAIL_HUB not defined for nullclient feature')')
+ifdef(`MASQUERADE_NAME',, `define(`MASQUERADE_NAME', MAIL_HUB)')dnl
+
+# route-addr separators
+C: : ,
+POPDIVERT
+PUSHDIVERT(7)
+############################################
+###   Null Client Mailer specification   ###
+############################################
+
+ifdef(`confRELAY_MAILER',,
+	`define(`confRELAY_MAILER', `nullclient')')dnl
+ifdef(`confFROM_HEADER',,
+	`define(`confFROM_HEADER', <$g>)')dnl
+ifdef(`SMTP_MAILER_ARGS',, `define(`SMTP_MAILER_ARGS', `IPC $h')')dnl
+
+Mnullclient,	P=[IPC], F=CONCAT(mDFMuXa, SMTP_MAILER_FLAGS),ifdef(`SMTP_MAILER_MAX', ` M=SMTP_MAILER_MAX,')
+		A=SMTP_MAILER_ARGS
+POPDIVERT
diff --git a/cf/feature/redirect.m4 b/cf/feature/redirect.m4
new file mode 100644
index 0000000..27f2357
--- /dev/null
+++ b/cf/feature/redirect.m4
@@ -0,0 +1,50 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)redirect.m4	8.5 (Berkeley) 8/17/96')
+divert(-1)
+
+
+PUSHDIVERT(3)
+# addresses sent to foo@host.REDIRECT will give a 551 error code
+R$* < @ $+ .REDIRECT. >		$: $1 < @ $2 . REDIRECT . > < ${opMode} >
+R$* < @ $+ .REDIRECT. > <i>	$: $1 < @ $2 . REDIRECT. >
+R$* < @ $+ .REDIRECT. > < $- >	$# error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>
+POPDIVERT
+
+PUSHDIVERT(6)
+CPREDIRECT
+POPDIVERT
diff --git a/cf/feature/smrsh.m4 b/cf/feature/smrsh.m4
new file mode 100644
index 0000000..6b4faab
--- /dev/null
+++ b/cf/feature/smrsh.m4
@@ -0,0 +1,42 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)smrsh.m4	8.2 (Berkeley) 11/11/95')
+divert(-1)
+
+ifdef(`_MAILER_local_',
+	`errprint(`*** FEATURE(smrsh) must occur before MAILER(local)')')dnl
+define(`LOCAL_SHELL_PATH', ifelse(_ARG_, `', `/usr/local/etc/smrsh', _ARG_))
diff --git a/cf/feature/stickyhost.m4 b/cf/feature/stickyhost.m4
new file mode 100644
index 0000000..bdd9c9a
--- /dev/null
+++ b/cf/feature/stickyhost.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)stickyhost.m4	8.1 (Berkeley) 11/12/94')
+divert(-1)
+
+define(`_STICKY_LOCAL_DOMAIN_', 1)
diff --git a/cf/feature/use_ct_file.m4 b/cf/feature/use_ct_file.m4
new file mode 100644
index 0000000..c33bbfd
--- /dev/null
+++ b/cf/feature/use_ct_file.m4
@@ -0,0 +1,46 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)use_ct_file.m4	8.1 (Berkeley) 9/17/95')
+divert(-1)
+
+# if defined, the sendmail.cf will read the /etc/sendmail.ct file
+# to find the names of trusted users.  There should only be a few
+# of these, and normally this is done directly in the .cf file.
+
+define(`_USE_CT_FILE_', `')
+
+divert(0)
diff --git a/cf/feature/use_cw_file.m4 b/cf/feature/use_cw_file.m4
new file mode 100644
index 0000000..33b5ad5
--- /dev/null
+++ b/cf/feature/use_cw_file.m4
@@ -0,0 +1,46 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)use_cw_file.m4	8.1 (Berkeley) 6/7/93')
+divert(-1)
+
+# if defined, the sendmail.cf will read the /etc/sendmail.cw file
+# to find alternate names for this host.  Typically only used when
+# several hosts have been squashed into one another at high speed.
+
+define(`USE_CW_FILE', `')
+
+divert(0)
diff --git a/cf/feature/uucpdomain.m4 b/cf/feature/uucpdomain.m4
new file mode 100644
index 0000000..77cc97b
--- /dev/null
+++ b/cf/feature/uucpdomain.m4
@@ -0,0 +1,49 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)uucpdomain.m4	8.6 (Berkeley) 2/19/94')
+divert(-1)
+
+
+PUSHDIVERT(6)
+Kuudomain ifelse(_ARG_, `', `hash -o /etc/uudomain', `_ARG_')
+POPDIVERT
+
+
+PUSHDIVERT(2)
+# handle UUCP mapping
+R$* < @ $+ .UUCP > $*		$: $1 < @ $(uudomain $2 $: $2.UUCP $) > $3
+POPDIVERT
diff --git a/cf/feature/virtusertable.m4 b/cf/feature/virtusertable.m4
new file mode 100644
index 0000000..91db88c
--- /dev/null
+++ b/cf/feature/virtusertable.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)virtusertable.m4	8.1 (Berkeley) 2/11/96')
+divert(-1)
+
+define(`VIRTUSER_TABLE', ifelse(_ARG_, `', `hash -o /etc/virtusertable', `_ARG_'))dnl
diff --git a/cf/hack/cssubdomain.m4 b/cf/hack/cssubdomain.m4
new file mode 100644
index 0000000..4f270c0
--- /dev/null
+++ b/cf/hack/cssubdomain.m4
@@ -0,0 +1,44 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+VERSIONID(`@(#)cssubdomain.m4	8.1 (Berkeley) 6/7/93')
+
+divert(2)
+# find possible (old & new) versions of our name via short circuit hack
+# (this code should exist ONLY during the transition from .Berkeley.EDU
+#  names to .CS.Berkeley.EDU names -- probably not more than a few months)
+R$* < @ $=w .CS.Berkeley.EDU > $*	$: $1 < @ $j > $3
+R$* < @ $=w .Berkeley.EDU> $*		$: $1 < @ $j > $3
+divert(0)
diff --git a/cf/m4/cf.m4 b/cf/m4/cf.m4
new file mode 100644
index 0000000..4e54f41
--- /dev/null
+++ b/cf/m4/cf.m4
@@ -0,0 +1,50 @@
+divert(-1)
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+#  This file is included so that multiple includes of cf.m4 will work
+#
+
+# figure out where the CF files live
+ifdef(`_CF_DIR_', `',
+	`ifelse(__file__, `__file__',
+		`define(`_CF_DIR_', `../')',
+		`define(`_CF_DIR_',
+			substr(__file__, 0, eval(len(__file__) - 8)))')')
+
+divert(0)dnl
+ifdef(`OSTYPE', `dnl',
+`include(_CF_DIR_`'m4/cfhead.m4)dnl
+VERSIONID(`@(#)cf.m4	8.24 (Berkeley) 8/16/95')')
diff --git a/cf/m4/cfhead.m4 b/cf/m4/cfhead.m4
new file mode 100644
index 0000000..6bef4c6
--- /dev/null
+++ b/cf/m4/cfhead.m4
@@ -0,0 +1,160 @@
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+######################################################################
+######################################################################
+#####
+#####		SENDMAIL CONFIGURATION FILE
+#####
+define(`TEMPFILE', maketemp(/tmp/cfXXXXXX))dnl
+syscmd(sh _CF_DIR_`'sh/makeinfo.sh _CF_DIR_ > TEMPFILE)dnl
+include(TEMPFILE)dnl
+syscmd(rm -f TEMPFILE)dnl
+#####
+######################################################################
+######################################################################
+
+divert(-1)
+
+changecom(
)
+undefine(`format')
+undefine(`hpux')
+ifdef(`pushdef', `',
+	`errprint(`You need a newer version of M4, at least as new as
+System V or GNU')
+	include(NoSuchFile)')
+define(`PUSHDIVERT', `pushdef(`__D__', divnum)divert($1)')
+define(`POPDIVERT', `divert(__D__)popdef(`__D__')')
+define(`OSTYPE',
+	`PUSHDIVERT(-1)
+	ifdef(`__OSTYPE__', `errprint(`duplicate OSTYPE'($1))')
+	define(`__OSTYPE__', $1)
+	define(`_ARG_', $2)
+	include(_CF_DIR_`'ostype/$1.m4)POPDIVERT`'')
+define(`MAILER',
+`ifdef(`_MAILER_$1_', `dnl`'',
+`define(`_MAILER_$1_', `')PUSHDIVERT(7)include(_CF_DIR_`'mailer/$1.m4)POPDIVERT`'')')
+define(`DOMAIN', `PUSHDIVERT(-1)define(`_ARG_', $2)include(_CF_DIR_`'domain/$1.m4)POPDIVERT`'')
+define(`FEATURE', `PUSHDIVERT(-1)define(`_ARG_', $2)include(_CF_DIR_`'feature/$1.m4)POPDIVERT`'')
+define(`HACK', `PUSHDIVERT(-1)define(`_ARG_', $2)include(_CF_DIR_`'hack/$1.m4)POPDIVERT`'')
+define(`VERSIONID', ``#####  $1  #####'')
+define(`LOCAL_RULE_0', `divert(3)')
+define(`LOCAL_RULE_1',
+`divert(9)dnl
+#######################################
+###  Ruleset 1 -- Sender Rewriting  ###
+#######################################
+
+S1
+')
+define(`LOCAL_RULE_2',
+`divert(9)dnl
+##########################################
+###  Ruleset 2 -- Recipient Rewriting  ###
+##########################################
+
+S2
+')
+define(`LOCAL_RULESETS',
+`divert(9)
+
+')
+define(`LOCAL_RULE_3', `divert(2)')
+define(`LOCAL_CONFIG', `divert(6)')
+define(`MAILER_DEFINITIONS', `divert(7)')
+define(`LOCAL_NET_CONFIG', `define(`_LOCAL_RULES_', 1)divert(1)')
+define(`UUCPSMTP', `R DOL(*) < @ $1 .UUCP > DOL(*)	DOL(1) < @ $2 > DOL(2)')
+define(`CONCAT', `$1$2$3$4$5$6$7')
+define(`DOL', ``$'$1')
+define(`SITECONFIG',
+`CONCAT(D, $3, $2)
+define(`_CLASS_$3_', `')dnl
+ifelse($3, U, Cw$2 $2.UUCP, `dnl')
+define(`SITE', `ifelse(CONCAT($'2`, $3), SU,
+		CONCAT(CY, $'1`),
+		CONCAT(C, $3, $'1`))')
+sinclude(_CF_DIR_`'siteconfig/$1.m4)')
+define(`EXPOSED_USER', `PUSHDIVERT(5)CE$1
+POPDIVERT`'dnl`'')
+define(`LOCAL_USER', `PUSHDIVERT(5)CL$1
+POPDIVERT`'dnl`'')
+define(`MASQUERADE_AS', `define(`MASQUERADE_NAME', $1)')
+define(`MASQUERADE_DOMAIN', `PUSHDIVERT(5)CM$1
+POPDIVERT`'dnl`'')
+define(`MASQUERADE_DOMAIN_FILE', `PUSHDIVERT(5)FM$1
+POPDIVERT`'dnl`'')
+define(`GENERICS_DOMAIN', `PUSHDIVERT(5)CG$1
+POPDIVERT`'dnl`'')
+define(`GENERICS_DOMAIN_FILE', `PUSHDIVERT(5)FG$1
+POPDIVERT`'dnl`'')
+define(`_OPTINS', `ifdef(`$1', `$2$1$3')')
+
+m4wrap(`include(_CF_DIR_`m4/proto.m4')')
+
+# set up default values for options
+define(`ALIAS_FILE', `/etc/aliases')
+define(`confMAILER_NAME', ``MAILER-DAEMON'')
+define(`confFROM_LINE', `From $g  $d')
+define(`confOPERATORS', `.:%@!^/[]+')
+define(`confSMTP_LOGIN_MSG', `$j Sendmail $v/$Z; $b')
+define(`confRECEIVED_HEADER', `$?sfrom $s $.$?_($?s$|from $.$_)
+	$.by $j ($v/$Z)$?r with $r$. id $i$?u
+	for $u; $|;
+	$.$b')
+define(`confSEVEN_BIT_INPUT', `False')
+define(`confEIGHT_BIT_HANDLING', `pass8')
+define(`confALIAS_WAIT', `10')
+define(`confMIN_FREE_BLOCKS', `100')
+define(`confBLANK_SUB', `.')
+define(`confCON_EXPENSIVE', `False')
+define(`confDELIVERY_MODE', `background')
+define(`confTEMP_FILE_MODE', `0600')
+define(`confMCI_CACHE_SIZE', `2')
+define(`confMCI_CACHE_TIMEOUT', `5m')
+define(`confUSE_ERRORS_TO', `False')
+define(`confLOG_LEVEL', `9')
+define(`confCHECK_ALIASES', `False')
+define(`confOLD_STYLE_HEADERS', `True')
+define(`confPRIVACY_FLAGS', `authwarnings')
+define(`confSAFE_QUEUE', `True')
+define(`confTO_QUEUERETURN', `5d')
+define(`confTO_QUEUEWARN', `4h')
+define(`confTIME_ZONE', `USE_SYSTEM')
+define(`confDEF_USER_ID', `1:1')
+define(`confCW_FILE', `/etc/sendmail.cw')
+define(`confMIME_FORMAT_ERRORS', `True')
+define(`confFORWARD_PATH', `$z/.forward.$w:$z/.forward')
+
+divert(0)dnl
+VERSIONID(`@(#)cfhead.m4	8.9 (Berkeley) 1/18/97')
diff --git a/cf/m4/nullrelay.m4 b/cf/m4/nullrelay.m4
new file mode 100644
index 0000000..e8f9677
--- /dev/null
+++ b/cf/m4/nullrelay.m4
@@ -0,0 +1,135 @@
+divert(-1)
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+
+VERSIONID(`@(#)nullrelay.m4	8.13 (Berkeley) 4/30/97')
+
+#
+#  This configuration applies only to relay-only hosts.  They send
+#  all mail to a hub without consideration of the address syntax
+#  or semantics, except for adding the hub qualification to the
+#  addresses.
+#
+#	This is based on a prototype done by Bryan Costales of ICSI.
+#
+
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+###########################################
+###  Rulset 3 -- Name Canonicalization  ###
+###########################################
+S3
+
+# handle null input
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:`include': $* <@>	$: :`include': $1			unmark :`include':...
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# basic textual canonicalization -- note RFC733 heuristic here
+R$*			$: < $1 >		housekeeping <>
+R$+ < $* >		   < $2 >		strip excess on left
+R< $* > $+		   < $1 >		strip excess on right
+R<>			$@ < @ >		MAIL FROM:<> case
+R< $+ >			$: $1			remove housekeeping <>
+
+ifdef(`_NO_CANONIFY_', `dnl',
+`# eliminate local host if present
+R@ $=w $=: $+		$@ @ $M $2 $3			@thishost ...
+R@ $+			$@ @ $1				@somewhere ...
+
+R$=E @ $=w		$@ $1 @ $2			leave exposed
+R$+ @ $=w		$@ $1 @ $M			...@thishost
+R$+ @ $+		$@ $1 @ $2			...@somewhere
+
+R$=w ! $=E		$@ $2 @ $1			leave exposed
+R$=w ! $+		$@ $2 @ $M			thishost!...
+R$+ ! $+		$@ $1 ! $2 @ $M			somewhere ! ...
+
+R$=E % $=w		$@ $1 @ $2			leave exposed
+R$+ % $=w		$@ $1 @ $M			...%thishost
+R$+ % $+		$@ $1 @ $2			...%somewhere
+
+R$=E			$@ $1 @ $j			leave exposed
+R$+			$@ $1 @ $M			unadorned user')
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*:;<@>		$#error $@ USAGE $: "list:; syntax illegal for recipient addresses"
+
+# pass everything else to a relay host
+R$*			$#_RELAY_ $@ $H $: $1
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off before passing to nullclient relay
+R$* @ $+ .		$1 @ $2
+
+#
+######################################################################
+######################################################################
+#####
+`#####			MAILER DEFINITIONS'
+#####
+######################################################################
+######################################################################
+undivert(7)dnl
diff --git a/cf/m4/proto.m4 b/cf/m4/proto.m4
new file mode 100644
index 0000000..78fa195
--- /dev/null
+++ b/cf/m4/proto.m4
@@ -0,0 +1,928 @@
+divert(-1)
+#
+# Copyright (c) 1983, 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+divert(0)
+
+VERSIONID(`@(#)proto.m4	8.151 (Berkeley) 7/31/97')
+
+MAILER(local)dnl
+
+# level 7 config file format
+V7/Berkeley
+divert(-1)
+
+# do some sanity checking
+ifdef(`__OSTYPE__',,
+	`errprint(`*** ERROR: No system type defined (use OSTYPE macro)')')
+
+# pick our default mailers
+ifdef(`confSMTP_MAILER',, `define(`confSMTP_MAILER', `esmtp')')
+ifdef(`confLOCAL_MAILER',, `define(`confLOCAL_MAILER', `local')')
+ifdef(`confRELAY_MAILER',,
+	`define(`confRELAY_MAILER',
+		`ifdef(`_MAILER_smtp_', `relay',
+			`ifdef(`_MAILER_uucp', `uucp-new', `unknown')')')')
+ifdef(`confUUCP_MAILER',, `define(`confUUCP_MAILER', `uucp-old')')
+define(`_SMTP_', `confSMTP_MAILER')dnl		for readability only
+define(`_LOCAL_', `confLOCAL_MAILER')dnl	for readability only
+define(`_RELAY_', `confRELAY_MAILER')dnl	for readability only
+define(`_UUCP_', `confUUCP_MAILER')dnl		for readability only
+
+# back compatibility with old config files
+ifdef(`confDEF_GROUP_ID',
+	`errprint(`*** confDEF_GROUP_ID is obsolete.')
+	 errprint(`    Use confDEF_USER_ID with a colon in the value instead.')')
+ifdef(`confREAD_TIMEOUT',
+	`errprint(`*** confREAD_TIMEOUT is obsolete.')
+	 errprint(`    Use individual confTO_<timeout> parameters instead.')')
+ifdef(`confMESSAGE_TIMEOUT',
+	`define(`_ARG_', index(confMESSAGE_TIMEOUT, /))
+	 ifelse(_ARG_, -1,
+		`define(`confTO_QUEUERETURN', confMESSAGE_TIMEOUT)',
+		`define(`confTO_QUEUERETURN',
+			substr(confMESSAGE_TIMEOUT, 0, _ARG_))
+		 define(`confTO_QUEUEWARN',
+			substr(confMESSAGE_TIMEOUT, eval(_ARG_+1)))')')
+ifdef(`confMIN_FREE_BLOCKS', `ifelse(index(confMIN_FREE_BLOCKS, /), -1,,
+	`errprint(`*** compound confMIN_FREE_BLOCKS is obsolete.')
+	 errprint(`    Use confMAX_MESSAGE_SIZE for the second part of the value.')')')
+
+# clean option definitions below....
+define(`_OPTION', `ifdef(`$2', `O $1=$2', `#O $1`'ifelse($3, `',, `=$3')')')dnl
+
+divert(0)dnl
+
+##################
+#   local info   #
+##################
+
+Cwlocalhost
+ifdef(`USE_CW_FILE',
+`# file containing names of hosts for which we receive email
+Fw`'confCW_FILE',
+	`dnl')
+
+# my official domain name
+# ... `define' this only if sendmail cannot automatically determine your domain
+ifdef(`confDOMAIN_NAME', `Dj`'confDOMAIN_NAME', `#Dj$w.Foo.COM')
+
+ifdef(`_NULL_CLIENT_ONLY_', `divert(-1)')dnl
+
+CP.
+
+ifdef(`UUCP_RELAY',
+`# UUCP relay host
+DY`'UUCP_RELAY
+CPUUCP
+
+')dnl
+ifdef(`BITNET_RELAY',
+`#  BITNET relay host
+DB`'BITNET_RELAY
+CPBITNET
+
+')dnl
+ifdef(`DECNET_RELAY',
+`define(`_USE_DECNET_SYNTAX_', 1)dnl
+# DECnet relay host
+DC`'DECNET_RELAY
+CPDECNET
+
+')dnl
+ifdef(`FAX_RELAY',
+`# FAX relay host
+DF`'FAX_RELAY
+CPFAX
+
+')dnl
+# "Smart" relay host (may be null)
+DS`'ifdef(`SMART_HOST', SMART_HOST)
+
+# place to which unknown users should be forwarded
+ifdef(`LUSER_RELAY', `', `#')dnl
+Kuser user -m -a<>
+ifdef(`LUSER_RELAY',
+	`DL`'LUSER_RELAY',
+	`#DLname_of_luser_relay')
+
+# operators that cannot be in local usernames (i.e., network indicators)
+CO @ % ifdef(`_NO_UUCP_', `', `!')
+
+# a class with just dot (for identifying canonical names)
+C..
+
+# a class with just a left bracket (for identifying domain literals)
+C[[
+
+# Mailer table (overriding domains)
+ifdef(`MAILER_TABLE',
+	`Kmailertable MAILER_TABLE',
+	`#Kmailertable dbm /etc/mailertable')
+
+# Domain table (adding domains)
+ifdef(`DOMAIN_TABLE',
+	`Kdomaintable DOMAIN_TABLE',
+	`#Kdomaintable dbm /etc/domaintable')
+
+# Generics table (mapping outgoing addresses)
+ifdef(`GENERICS_TABLE',
+	`Kgenerics GENERICS_TABLE',
+	`#Kgenerics dbm /etc/genericstable')
+
+# Virtual user table (maps incoming users)
+ifdef(`VIRTUSER_TABLE',
+	`Kvirtuser VIRTUSER_TABLE',
+	`#Kvirtuser dbm /etc/virtusertable')
+
+# who I send unqualified names to (null means deliver locally)
+DR`'ifdef(`LOCAL_RELAY', LOCAL_RELAY)
+
+# who gets all local email traffic ($R has precedence for unqualified names)
+DH`'ifdef(`MAIL_HUB', MAIL_HUB)
+
+# dequoting map
+Kdequote dequote
+
+divert(0)dnl	# end of nullclient diversion
+# class E: names that should be exposed as from this host, even if we masquerade
+ifdef(`_NULL_CLIENT_ONLY_', `#',
+`# class L: names that should be delivered locally, even if we have a relay
+# class M: domains that should be converted to $M
+#CL root
+')CE root
+undivert(5)dnl
+
+# who I masquerade as (null for no masquerading) (see also $=M)
+DM`'ifdef(`MASQUERADE_NAME', MASQUERADE_NAME)
+
+# my name for error messages
+ifdef(`confMAILER_NAME', `Dn`'confMAILER_NAME', `#DnMAILER-DAEMON')
+
+undivert(6)dnl
+include(_CF_DIR_`m4/version.m4')
+
+###############
+#   Options   #
+###############
+
+# strip message body to 7 bits on input?
+_OPTION(SevenBitInput, `confSEVEN_BIT_INPUT')
+
+# 8-bit data handling
+_OPTION(EightBitMode, `confEIGHT_BIT_HANDLING', adaptive)
+
+ifdef(`_NULL_CLIENT_ONLY_', `dnl', `
+# wait for alias file rebuild (default units: minutes)
+_OPTION(AliasWait, `confALIAS_WAIT', 5m)
+
+# location of alias file
+_OPTION(AliasFile, `ALIAS_FILE', /etc/aliases)
+')
+# minimum number of free blocks on filesystem
+_OPTION(MinFreeBlocks, `confMIN_FREE_BLOCKS', 100)
+
+# maximum message size
+_OPTION(MaxMessageSize, `confMAX_MESSAGE_SIZE', 1000000)
+
+# substitution for space (blank) characters
+_OPTION(BlankSub, `confBLANK_SUB', _)
+
+# avoid connecting to "expensive" mailers on initial submission?
+_OPTION(HoldExpensive, `confCON_EXPENSIVE')
+
+# checkpoint queue runs after every N successful deliveries
+_OPTION(CheckpointInterval, `confCHECKPOINT_INTERVAL', 10)
+
+# default delivery mode
+_OPTION(DeliveryMode, `confDELIVERY_MODE', background)
+
+# automatically rebuild the alias database?
+_OPTION(AutoRebuildAliases, `confAUTO_REBUILD')
+
+# error message header/file
+_OPTION(ErrorHeader, `confERROR_MESSAGE', /etc/sendmail.oE)
+
+# error mode
+_OPTION(ErrorMode, `confERROR_MODE', print)
+
+# save Unix-style "From_" lines at top of header?
+_OPTION(SaveFromLine, `confSAVE_FROM_LINES')
+
+# temporary file mode
+_OPTION(TempFileMode, `confTEMP_FILE_MODE', 0600)
+
+# match recipients against GECOS field?
+_OPTION(MatchGECOS, `confMATCH_GECOS')
+
+# maximum hop count
+_OPTION(MaxHopCount, `confMAX_HOP', 17)
+
+# location of help file
+O HelpFile=ifdef(`HELP_FILE', HELP_FILE, /usr/lib/sendmail.hf)
+
+# ignore dots as terminators in incoming messages?
+_OPTION(IgnoreDots, `confIGNORE_DOTS')
+
+# name resolver options
+_OPTION(ResolverOptions, `confBIND_OPTS', +AAONLY)
+
+# deliver MIME-encapsulated error messages?
+_OPTION(SendMimeErrors, `confMIME_FORMAT_ERRORS')
+
+# Forward file search path
+_OPTION(ForwardPath, `confFORWARD_PATH', /var/forward/$u:$z/.forward.$w:$z/.forward)
+
+# open connection cache size
+_OPTION(ConnectionCacheSize, `confMCI_CACHE_SIZE', 2)
+
+# open connection cache timeout
+_OPTION(ConnectionCacheTimeout, `confMCI_CACHE_TIMEOUT', 5m)
+
+# persistent host status directory
+_OPTION(HostStatusDirectory, `confHOST_STATUS_DIRECTORY', .hoststat)
+
+# single thread deliveries (requires HostStatusDirectory)?
+_OPTION(SingleThreadDelivery, `confSINGLE_THREAD_DELIVERY')
+
+# use Errors-To: header?
+_OPTION(UseErrorsTo, `confUSE_ERRORS_TO')
+
+# log level
+_OPTION(LogLevel, `confLOG_LEVEL', 10)
+
+# send to me too, even in an alias expansion?
+_OPTION(MeToo, `confME_TOO')
+
+# verify RHS in newaliases?
+_OPTION(CheckAliases, `confCHECK_ALIASES')
+
+# default messages to old style headers if no special punctuation?
+_OPTION(OldStyleHeaders, `confOLD_STYLE_HEADERS')
+
+# SMTP daemon options
+_OPTION(DaemonPortOptions, `confDAEMON_OPTIONS', Port=esmtp)
+
+# privacy flags
+_OPTION(PrivacyOptions, `confPRIVACY_FLAGS', authwarnings)
+
+# who (if anyone) should get extra copies of error messages
+_OPTION(PostMasterCopy, `confCOPY_ERRORS_TO', Postmaster)
+
+# slope of queue-only function
+_OPTION(QueueFactor, `confQUEUE_FACTOR', 600000)
+
+# queue directory
+O QueueDirectory=ifdef(`QUEUE_DIR', QUEUE_DIR, /var/spool/mqueue)
+
+# timeouts (many of these)
+_OPTION(Timeout.initial, `confTO_INITIAL', 5m)
+_OPTION(Timeout.connect, `confTO_CONNECT', 5m)
+_OPTION(Timeout.iconnect, `confTO_ICONNECT', 5m)
+_OPTION(Timeout.helo, `confTO_HELO', 5m)
+_OPTION(Timeout.mail, `confTO_MAIL', 10m)
+_OPTION(Timeout.rcpt, `confTO_RCPT', 1h)
+_OPTION(Timeout.datainit, `confTO_DATAINIT', 5m)
+_OPTION(Timeout.datablock, `confTO_DATABLOCK', 1h)
+_OPTION(Timeout.datafinal, `confTO_DATAFINAL', 1h)
+_OPTION(Timeout.rset, `confTO_RSET', 5m)
+_OPTION(Timeout.quit, `confTO_QUIT', 2m)
+_OPTION(Timeout.misc, `confTO_MISC', 2m)
+_OPTION(Timeout.command, `confTO_COMMAND', 1h)
+_OPTION(Timeout.ident, `confTO_IDENT', 30s)
+_OPTION(Timeout.fileopen, `confTO_FILEOPEN', 60s)
+_OPTION(Timeout.queuereturn, `confTO_QUEUERETURN', 5d)
+_OPTION(Timeout.queuereturn.normal, `confTO_QUEUERETURN_NORMAL', 5d)
+_OPTION(Timeout.queuereturn.urgent, `confTO_QUEUERETURN_URGENT', 2d)
+_OPTION(Timeout.queuereturn.non-urgent, `confTO_QUEUERETURN_NONURGENT', 7d)
+_OPTION(Timeout.queuewarn, `confTO_QUEUEWARN', 4h)
+_OPTION(Timeout.queuewarn.normal, `confTO_QUEUEWARN_NORMAL', 4h)
+_OPTION(Timeout.queuewarn.urgent, `confTO_QUEUEWARN_URGENT', 1h)
+_OPTION(Timeout.queuewarn.non-urgent, `confTO_QUEUEWARN_NONURGENT', 12h)
+_OPTION(Timeout.hoststatus, `confTO_HOSTSTATUS', 30m)
+
+# should we not prune routes in route-addr syntax addresses?
+_OPTION(DontPruneRoutes, `confDONT_PRUNE_ROUTES')
+
+# queue up everything before forking?
+_OPTION(SuperSafe, `confSAFE_QUEUE')
+
+# status file
+O StatusFile=ifdef(`STATUS_FILE', `STATUS_FILE', /etc/sendmail.st)
+
+# time zone handling:
+#  if undefined, use system default
+#  if defined but null, use TZ envariable passed in
+#  if defined and non-null, use that info
+ifelse(confTIME_ZONE, `USE_SYSTEM', `#O TimeZoneSpec=',
+	confTIME_ZONE, `USE_TZ', `O TimeZoneSpec=',
+	`O TimeZoneSpec=confTIME_ZONE')
+
+# default UID (can be username or userid:groupid)
+_OPTION(DefaultUser, `confDEF_USER_ID', nobody)
+
+# list of locations of user database file (null means no lookup)
+_OPTION(UserDatabaseSpec, `confUSERDB_SPEC', /etc/userdb)
+
+# fallback MX host
+_OPTION(FallbackMXhost, `confFALLBACK_MX', fall.back.host.net)
+
+# if we are the best MX host for a site, try it directly instead of config err
+_OPTION(TryNullMXList, `confTRY_NULL_MX_LIST')
+
+# load average at which we just queue messages
+_OPTION(QueueLA, `confQUEUE_LA', 8)
+
+# load average at which we refuse connections
+_OPTION(RefuseLA, `confREFUSE_LA', 12)
+
+# maximum number of children we allow at one time
+_OPTION(MaxDaemonChildren, `confMAX_DAEMON_CHILDREN', 12)
+
+# maximum number of new connections per second
+_OPTION(ConnectionRateThrottle, `confCONNECTION_RATE_THROTTLE', 3)
+
+# work recipient factor
+_OPTION(RecipientFactor, `confWORK_RECIPIENT_FACTOR', 30000)
+
+# deliver each queued job in a separate process?
+_OPTION(ForkEachJob, `confSEPARATE_PROC')
+
+# work class factor
+_OPTION(ClassFactor, `confWORK_CLASS_FACTOR', 1800)
+
+# work time factor
+_OPTION(RetryFactor, `confWORK_TIME_FACTOR', 90000)
+
+# shall we sort the queue by hostname first?
+_OPTION(QueueSortOrder, `confQUEUE_SORT_ORDER', priority)
+
+# minimum time in queue before retry
+_OPTION(MinQueueAge, `confMIN_QUEUE_AGE', 30m)
+
+# default character set
+_OPTION(DefaultCharSet, `confDEF_CHAR_SET', iso-8859-1)
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+_OPTION(ServiceSwitchFile, `confSERVICE_SWITCH_FILE', /etc/service.switch)
+
+# hosts file (normally /etc/hosts)
+_OPTION(HostsFile, `confHOSTS_FILE', /etc/hosts)
+
+# dialup line delay on connection failure
+_OPTION(DialDelay, `confDIAL_DELAY', 10s)
+
+# action to take if there are no recipients in the message
+_OPTION(NoRecipientAction, `confNO_RCPT_ACTION', add-to-undisclosed)
+
+# chrooted environment for writing to files
+_OPTION(SafeFileEnvironment, `confSAFE_FILE_ENV', /arch)
+
+# are colons OK in addresses?
+_OPTION(ColonOkInAddr, `confCOLON_OK_IN_ADDR')
+
+# how many jobs can you process in the queue?
+_OPTION(MaxQueueRunSize, `confMAX_QUEUE_RUN_SIZE', 10000)
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+_OPTION(DontExpandCnames, `confDONT_EXPAND_CNAMES')
+
+# SMTP initial login message (old $e macro)
+_OPTION(SmtpGreetingMessage, `confSMTP_LOGIN_MSG')
+
+# UNIX initial From header format (old $l macro)
+_OPTION(UnixFromLine, `confFROM_LINE')
+
+# delimiter (operator) characters (old $o macro)
+_OPTION(OperatorChars, `confOPERATORS')
+
+# shall I avoid calling initgroups(3) because of high NIS costs?
+_OPTION(DontInitGroups, `confDONT_INIT_GROUPS')
+
+# are group-writable `:include:' and .forward files (un)trustworthy?
+_OPTION(UnsafeGroupWrites, `confUNSAFE_GROUP_WRITES')
+
+# where do errors that occur when sending errors get sent?
+_OPTION(DoubleBounceAddress, `confDOUBLE_BOUNCE_ADDRESS')
+
+# what user id do we assume for the majority of the processing?
+_OPTION(RunAsUser, `confRUN_AS_USER', sendmail)
+
+###########################
+#   Message precedences   #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+#   Trusted users   #
+#####################
+
+# this is equivalent to setting class "t"
+ifdef(`_USE_CT_FILE_', `', `#')Ft`'ifdef(`confCT_FILE', confCT_FILE, `/etc/sendmail.ct')
+Troot
+Tdaemon
+ifdef(`_NO_UUCP_', `dnl', `Tuucp')
+ifdef(`confTRUSTED_USERS', `T`'confTRUSTED_USERS', `dnl')
+
+#########################
+#   Format of headers   #
+#########################
+
+ifdef(`confFROM_HEADER',, `define(`confFROM_HEADER', `$?x$x <$g>$|$g$.')')dnl
+H?P?Return-Path: <$g>
+HReceived: confRECEIVED_HEADER
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: confFROM_HEADER
+H?F?From: confFROM_HEADER
+H?x?Full-Name: $x
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+ifdef(`_NULL_CLIENT_ONLY_',
+	`include(_CF_DIR_`'m4/nullrelay.m4)m4exit',
+	`dnl')
+#
+######################################################################
+######################################################################
+#####
+#####			REWRITING RULES
+#####
+######################################################################
+######################################################################
+
+############################################
+###  Ruleset 3 -- Name Canonicalization  ###
+############################################
+S3
+
+# handle null input (translate to <@> special case)
+R$@			$@ <@>
+
+# strip group: syntax (not inside angle brackets!) and trailing semicolon
+R$*			$: $1 <@>			mark addresses
+R$* < $* > $* <@>	$: $1 < $2 > $3			unmark <addr>
+R@ $* <@>		$: @ $1				unmark @host:...
+R$* :: $* <@>		$: $1 :: $2			unmark node::addr
+R:`include': $* <@>	$: :`include': $1			unmark :`include':...
+R$* [ $* : $* ] <@>	$: $1 [ $2 : $3 ]		unmark IPv6 addrs
+R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
+R$* : $* <@>		$: $2				strip colon if marked
+R$* <@>			$: $1				unmark
+R$* ;			   $1				strip trailing semi
+R$* < $* ; >		   $1 < $2 >			bogus bracketed semi
+
+# null input now results from list:; syntax
+R$@			$@ :; <@>
+
+# strip angle brackets -- note RFC733 heuristic to get innermost item
+R$*			$: < $1 >			housekeeping <>
+R$+ < $* >		   < $2 >			strip excess on left
+R< $* > $+		   < $1 >			strip excess on right
+R<>			$@ < @ >			MAIL FROM:<> case
+R< $+ >			$: $1				remove housekeeping <>
+
+# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
+R@ $+ , $+		@ $1 : $2			change all "," to ":"
+
+# localize and dispose of route-based addresses
+R@ $+ : $+		$@ $>96 < @$1 > : $2		handle <route-addr>
+
+# find focus for list syntax
+R $+ : $* ; @ $+	$@ $>96 $1 : $2 ; < @ $3 >	list syntax
+R $+ : $* ;		$@ $1 : $2;			list syntax
+
+# find focus for @ syntax addresses
+R$+ @ $+		$: $1 < @ $2 >			focus on domain
+R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
+R$+ < @ $+ >		$@ $>96 $1 < @ $2 >		already canonical
+
+# do some sanity checking
+R$* < @ $* : $* > $*	$1 < @ $2 $3 > $4		nix colons in addrs
+
+ifdef(`_NO_UUCP_', `dnl',
+`# convert old-style addresses to a domain-based address
+R$- ! $+		$@ $>96 $2 < @ $1 .UUCP >	resolve uucp names
+R$+ . $- ! $+		$@ $>96 $3 < @ $1 . $2 >		domain uucps
+R$+ ! $+		$@ $>96 $2 < @ $1 .UUCP >	uucp subdomains
+')
+ifdef(`_USE_DECNET_SYNTAX_',
+`# convert node::user addresses into a domain-based address
+R$- :: $+		$@ $>96 $2 < @ $1 .DECNET >	resolve DECnet names
+R$- . $- :: $+		$@ $>96 $3 < @ $1.$2 .DECNET >	numeric DECnet addr
+',
+	`dnl')
+# if we have % signs, take the rightmost one
+R$* % $*		$1 @ $2				First make them all @s.
+R$* @ $* @ $*		$1 % $2 @ $3			Undo all but the last.
+R$* @ $*		$@ $>96 $1 < @ $2 >		Insert < > and finish
+
+# else we must be a local name
+R$*			$@ $>96 $1
+
+
+################################################
+###  Ruleset 96 -- bottom half of ruleset 3  ###
+################################################
+
+S96
+
+# handle special cases for local names
+R$* < @ localhost > $*		$: $1 < @ $j . > $2		no domain at all
+R$* < @ localhost . $m > $*	$: $1 < @ $j . > $2		local domain
+ifdef(`_NO_UUCP_', `dnl',
+`R$* < @ localhost . UUCP > $*	$: $1 < @ $j . > $2		.UUCP domain')
+R$* < @ [ $+ ] > $*		$: $1 < @@ [ $2 ] > $3		mark [a.b.c.d]
+R$* < @@ $=w > $*		$: $1 < @ $j . > $3		self-literal
+R$* < @@ $+ > $*		$@ $1 < @ $2 > $3		canon IP addr
+
+# look up domains in the domain table
+ifdef(`DOMAIN_TABLE', `', `#')dnl
+R$* < @ $+ > $* 		$: $1 < @ $(domaintable $2 $) > $3
+
+undivert(2)dnl
+
+ifdef(`_NO_UUCP_', `dnl',
+`ifdef(`UUCP_RELAY',
+`# pass UUCP addresses straight through
+R$* < @ $+ . UUCP > $*		$@ $1 < @ $2 . UUCP . > $3',
+`# if really UUCP, handle it immediately
+ifdef(`_CLASS_U_',
+`R$* < @ $=U . UUCP > $*	$@ $1 < @ $2 . UUCP . > $3', `dnl')
+ifdef(`_CLASS_V_',
+`R$* < @ $=V . UUCP > $*	$@ $1 < @ $2 . UUCP . > $3', `dnl')
+ifdef(`_CLASS_W_',
+`R$* < @ $=W . UUCP > $*	$@ $1 < @ $2 . UUCP . > $3', `dnl')
+ifdef(`_CLASS_X_',
+`R$* < @ $=X . UUCP > $*	$@ $1 < @ $2 . UUCP . > $3', `dnl')
+ifdef(`_CLASS_Y_',
+`R$* < @ $=Y . UUCP > $*	$@ $1 < @ $2 . UUCP . > $3', `dnl')
+
+define(`X', ifdef(`_NO_CANONIFY_', `#', `'))dnl
+# try UUCP traffic as a local address
+X`'R$* < @ $+ . UUCP > $*		$: $1 < @ $[ $2 $] . UUCP . > $3
+X`'R$* < @ $+ . . UUCP . > $*		$@ $1 < @ $2 . > $3')
+undefine(`X')dnl
+')
+# pass to name server to make hostname canonical
+ifdef(`_NO_CANONIFY_', `#')dnl
+R$* < @ $* $~P > $*		$: $1 < @ $[ $2 $3 $] > $4
+
+# local host aliases and pseudo-domains are always canonical
+R$* < @ $=w > $*		$: $1 < @ $2 . > $3
+R$* < @ $j > $*			$: $1 < @ $j . > $2
+ifdef(`_MASQUERADE_ENTIRE_DOMAIN_',
+`R$* < @ $* $=M > $*		$: $1 < @ $2 $3 . > $4',
+`R$* < @ $=M > $*		$: $1 < @ $2 . > $3')
+R$* < @ $* $=P > $*		$: $1 < @ $2 $3 . > $4
+R$* < @ $* . . > $*		$1 < @ $2 . > $3
+
+
+##################################################
+###  Ruleset 4 -- Final Output Post-rewriting  ###
+##################################################
+S4
+
+R$* <@>			$@				handle <> and list:;
+
+# strip trailing dot off possibly canonical name
+R$* < @ $+ . > $*	$1 < @ $2 > $3
+
+# eliminate internal code -- should never get this far!
+R$* < @ *LOCAL* > $*	$1 < @ $j > $2
+
+# externalize local domain info
+R$* < $+ > $*		$1 $2 $3			defocus
+R@ $+ : @ $+ : $+	@ $1 , @ $2 : $3		<route-addr> canonical
+R@ $*			$@ @ $1				... and exit
+
+ifdef(`_NO_UUCP_', `dnl',
+`# UUCP must always be presented in old form
+R$+ @ $- . UUCP		$2!$1				u@h.UUCP => h!u')
+
+ifdef(`_USE_DECNET_SYNTAX_',
+`# put DECnet back in :: form
+R$+ @ $+ . DECNET	$2 :: $1			u@h.DECNET => h::u',
+	`dnl')
+# delete duplicate local names
+R$+ % $=w @ $=w		$1 @ $2				u%host@host => u@host
+
+
+
+##############################################################
+###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
+###		   (used for recursive calls)		   ###
+##############################################################
+
+S`'97
+R$*			$: $>3 $1
+R$*			$@ $>0 $1
+
+
+######################################
+###   Ruleset 0 -- Parse Address   ###
+######################################
+
+S0
+
+R$*			$: $>Parse0 $1		initial parsing
+R$*			$: $>98 $1		handle local hacks
+R$*			$: $>Parse1 $1		final parsing
+
+SParse0
+R<@>			$#_LOCAL_ $: <@>		special case error msgs
+R$* : $* ; <@>		$#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses"
+R<@ $+>			$#error $@ 5.1.1 $: "user address required"
+R$*			$: <> $1
+R<> $* < @ [ $+ ] > $*	$1 < @ [ $2 ] > $3
+R<> $* <$* : $* > $*	$#error $@ 5.1.1 $: "colon illegal in host name part"
+R<> $*			$1
+R$* < @ . $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+R$* < @ $* .. $* > $*	$#error $@ 5.1.2 $: "invalid host name"
+
+ifdef(`_MAILER_smtp_',
+`# handle numeric address spec
+R$* < @ [ $+ ] > $*	$: $>98 $1 < @ [ $2 ] > $3	numeric internet spec
+R$* < @ [ $+ ] > $*	$#_SMTP_ $@ [$2] $: $1 < @ [$2] > $3	still numeric: send',
+	`dnl')
+
+# now delete the local info -- note $=O to find characters that cause forwarding
+R$* < @ > $*		$@ $>Parse0 $>3 $1		user@ => user
+R< @ $=w . > : $*	$@ $>Parse0 $>3 $2		@here:... -> ...
+R$- < @ $=w . >		$: $(dequote $1 $) < @ $2 . >	dequote "foo"@here
+R< @ $+ >		$#error $@ 5.1.1 $: "user address required"
+R$* $=O $* < @ $=w . >	$@ $>Parse0 $>3 $1 $2 $3	...@here -> ...
+
+SParse1
+# handle virtual users
+define(`X', ifdef(`VIRTUSER_TABLE', `', `#'))dnl
+X`'R$+ < @ $=w . > 	$: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+X`'R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+X`'R<@> $+ + $* < @ $* . >
+			$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
+X`'R<@> $+ < @ $+ . >	$: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
+X`'R<@> $+			$: $1
+X`'R< error : $- $+ > $* 	$#error $@ $( dequote $1 $) $: $2
+X`'R< $+ > $+ < @ $+ >	$: $>97 $1
+undefine(`X')dnl
+
+# short circuit local delivery so forwarded email works
+ifdef(`_MAILER_usenet_', `', `#')dnl
+R$+ . USENET < @ $=w . >	$#usenet $: $1		handle usenet specially
+ifdef(`_STICKY_LOCAL_DOMAIN_',
+`R$+ < @ $=w . >		$: < $H > $1 < @ $2 . >		first try hub
+R< $+ > $+ < $+ >	$>95 < $1 > $2 < $3 >		yep ....
+R< > $+ + $* < $+ >	$#_LOCAL_ $: $1 + $2		plussed name?
+R< > $+ < $+ >		$#_LOCAL_ $: @ $1			nope, local address',
+`R$=L < @ $=w . >	$#_LOCAL_ $: @ $1		special local names
+R$+ < @ $=w . >		$#_LOCAL_ $: $1			regular local name')
+
+define(`X', ifdef(`MAILER_TABLE', `', `#'))dnl
+# not local -- try mailer table lookup
+X`'R$* <@ $+ > $*		$: < $2 > $1 < @ $2 > $3	extract host name
+X`'R< $+ . > $*		$: < $1 > $2			strip trailing dot
+X`'R< $+ > $*		$: < $(mailertable $1 $) > $2	lookup
+X`'R< $~[ : $+ > $* 	$>95 < $1 : $2 > $3		check -- resolved?
+X`'R< $+ > $*		$: $>90 <$1> $2			try domain
+undefine(`X')dnl
+undivert(4)dnl
+
+ifdef(`_NO_UUCP_', `dnl',
+`# resolve remotely connected UUCP links (if any)
+ifdef(`_CLASS_V_',
+`R$* < @ $=V . UUCP . > $*		$: $>95 < $V > $1 <@$2.UUCP.> $3',
+	`dnl')
+ifdef(`_CLASS_W_',
+`R$* < @ $=W . UUCP . > $*		$: $>95 < $W > $1 <@$2.UUCP.> $3',
+	`dnl')
+ifdef(`_CLASS_X_',
+`R$* < @ $=X . UUCP . > $*		$: $>95 < $X > $1 <@$2.UUCP.> $3',
+	`dnl')')
+
+# resolve fake top level domains by forwarding to other hosts
+ifdef(`BITNET_RELAY',
+`R$*<@$+.BITNET.>$*	$: $>95 < $B > $1 <@$2.BITNET.> $3	user@host.BITNET',
+	`dnl')
+ifdef(`DECNET_RELAY',
+`R$*<@$+.DECNET.>$*	$: $>95 < $C > $1 <@$2.DECNET.> $3	user@host.DECNET',
+	`dnl')
+ifdef(`_MAILER_pop_',
+`R$+ < @ POP. >		$#pop $: $1			user@POP',
+	`dnl')
+ifdef(`_MAILER_fax_',
+`R$+ < @ $+ .FAX. >	$#fax $@ $2 $: $1		user@host.FAX',
+`ifdef(`FAX_RELAY',
+`R$*<@$+.FAX.>$*		$: $>95 < $F > $1 <@$2.FAX.> $3	user@host.FAX',
+	`dnl')')
+
+ifdef(`UUCP_RELAY',
+`# forward non-local UUCP traffic to our UUCP relay
+R$*<@$*.UUCP.>$*		$: $>95 < $Y > $1 <@$2.UUCP.> $3	uucp mail',
+`ifdef(`_MAILER_uucp_',
+`# forward other UUCP traffic straight to UUCP
+R$* < @ $+ .UUCP. > $*		$#_UUCP_ $@ $2 $: $1 < @ $2 .UUCP. > $3	user@host.UUCP',
+	`dnl')')
+ifdef(`_MAILER_usenet_', `
+# addresses sent to net.group.USENET will get forwarded to a newsgroup
+R$+ . USENET		$#usenet $: $1',
+	`dnl')
+
+ifdef(`_LOCAL_RULES_',
+`# figure out what should stay in our local mail system
+undivert(1)', `dnl')
+
+# pass names that still have a host to a smarthost (if defined)
+R$* < @ $* > $*		$: $>95 < $S > $1 < @ $2 > $3	glue on smarthost name
+
+# deal with other remote names
+ifdef(`_MAILER_smtp_',
+`R$* < @$* > $*		$#_SMTP_ $@ $2 $: $1 < @ $2 > $3		user@host.domain',
+`R$* < @$* > $*		$#error $@ 5.1.2 $: Unrecognized host name $2')
+
+# if this is quoted, strip the quotes and try again
+R$+			$: $(dequote $1 $)		strip quotes
+R$+ $=O $+		$@ $>97 $1 $2 $3			try again
+
+# handle locally delivered names
+R$=L			$#_LOCAL_ $: @ $1			special local names
+R$+			$#_LOCAL_ $: $1			regular local names
+
+###########################################################################
+###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
+###########################################################################
+
+S5
+
+# deal with plussed users so aliases work nicely
+R$+ + *			$#_LOCAL_ $@ $&h $: $1
+R$+ + $*		$#_LOCAL_ $@ + $2 $: $1 + *
+
+# prepend an empty "forward host" on the front
+R$+			$: <> $1
+
+define(`X', ifdef(`LUSER_RELAY', `', `#'))dnl
+# send unrecognized local users to a relay host
+X`'R< > $+ 		$: < $L . > $( user $1 $)	look up user
+X`'R< $* > $+ <> $*	$: < > $2 $3			found; strip $L
+X`'R< $* . > $+		$: < $1 > $2			strip extra dot
+undefine(`X')dnl
+
+# see if we have a relay or a hub
+R< > $+			$: < $H > $1			try hub
+R< > $+			$: < $R > $1			try relay
+R< > $+			$: < > < $1 $(dequote "" $&h $) >	nope, restore +detail
+R< > < $+ + $* > $*	   < > < $1 > + $2 $3		find the user part
+R< > < $+ > + $*	$#_LOCAL_ $@ $2 $: @ $1		strip the extra +
+R< > < $+ >		$@ $1				no +detail
+R$+			$: $1 $(dequote "" $&h $)	add +detail back in
+R< local : $* > $*	$: $>95 < local : $1 > $2	no host extension
+R< error : $* > $*	$: $>95 < error : $1 > $2	no host extension
+R< $- : $+ > $+		$: $>95 < $1 : $2 > $3 < @ $2 >
+R< $+ > $+		$@ $>95 < $1 > $2 < @ $1 >
+
+###################################################################
+###  Ruleset 90 -- try domain part of mailertable entry 	###
+###################################################################
+
+define(`X', ifdef(`MAILER_TABLE', `', `#'))dnl
+S90
+X`'R$* <$- . $+ > $*	$: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
+X`'R$* <$~[ : $+ > $*		$>95 < $2 : $3 > $4	check -- resolved?
+X`'R$* < . $+ > $* 		$@ $>90 $1 . <$2> $3	no -- strip & try again
+X`'R$* < $* > $*		$: < $(mailertable . $@ $1$2 $) > $3	try "."
+X`'R< $~[ : $+ > $*		$>95 < $1 : $2 > $3	"." found?
+X`'R< $* > $*			$@ $2			no mailertable match
+undefine(`X')dnl
+
+###################################################################
+###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple	###
+###################################################################
+
+S95
+R< > $*				$@ $1			strip off null relay
+R< error : $- $+ > $*		$#error $@ $( dequote $1 $) $: $2
+R< local : $* > $*		$>CanonLocal < $1 > $2
+R< $- : $+ @ $+ > $*<$*>$*	$# $1 $@ $3 $: $2<@$3>	use literal user
+R< $- : $+ > $*			$# $1 $@ $2 $: $3	try qualified mailer
+R< $=w > $*			$@ $2			delete local host
+R< $+ > $*			$#_RELAY_ $@ $1 $: $2	use unqualified mailer
+
+###################################################################
+###  Ruleset CanonLocal -- canonify local: syntax		###
+###################################################################
+
+SCanonLocal
+# strip trailing dot from any host name that may appear
+R< $* > $* < @ $* . >		$: < $1 > $2 < @ $3 >
+
+# handle local: syntax -- use old user, either with or without host
+R< > $* < @ $* > $*		$#_LOCAL_ $@ $1@$2 $: $1
+R< > $+				$#_LOCAL_ $@ $1    $: $1
+
+# handle local:user@host syntax -- ignore host part
+R< $+ @ $+ > $* < @ $* >	$: < $1 > $3 < @ $4 >
+
+# handle local:user syntax
+R< $+ > $* <@ $* > $*		$#_LOCAL_ $@ $2@$3 $: $1
+R< $+ > $* 			$#_LOCAL_ $@ $2    $: $1
+
+###################################################################
+###  Ruleset 93 -- convert header names to masqueraded form	###
+###################################################################
+
+S93
+
+# handle generics database
+define(`X', ifdef(`GENERICS_TABLE', `', `#'))dnl
+ifdef(`_GENERICS_ENTIRE_DOMAIN_',
+`X`'R$+ < @ $* $=G . >	$: < $1@$2$3 > $1 < @ $2$3 . > @	mark',
+`X`'R$+ < @ $=G . >	$: < $1@$2 > $1 < @ $2 . > @	mark')
+X`'R$+ < @ *LOCAL* >	$: < $1@$j > $1 < @ *LOCAL* > @	mark
+X`'R< $+ > $+ < $* > @	$: < $(generics $1 $: $) > $2 < $3 >
+X`'R< > $+ < @ $+ > 	$: < $(generics $1 $: $) > $1 < @ $2 >
+X`'R< $* @ $* > $* < $* >	$@ $>3 $1 @ $2			found qualified
+X`'R< $+ > $* < $* >	$: $>3 $1 @ *LOCAL*		found unqualified
+X`'R< > $*			$: $1				not found
+undefine(`X')dnl
+
+# special case the users that should be exposed
+R$=E < @ *LOCAL* >	$@ $1 < @ $j . >		leave exposed
+ifdef(`_MASQUERADE_ENTIRE_DOMAIN_',
+`R$=E < @ $* $=M . >	$@ $1 < @ $2 $3 . >',
+`R$=E < @ $=M . >	$@ $1 < @ $2 . >')
+ifdef(`_LIMITED_MASQUERADE_', `#')dnl
+R$=E < @ $=w . >	$@ $1 < @ $2 . >
+
+# handle domain-specific masquerading
+ifdef(`_MASQUERADE_ENTIRE_DOMAIN_',
+`R$* < @ $* $=M . > $*	$: $1 < @ $2 $3 . @ $M > $4	convert masqueraded doms',
+`R$* < @ $=M . > $*	$: $1 < @ $2 . @ $M > $3	convert masqueraded doms')
+ifdef(`_LIMITED_MASQUERADE_', `#')dnl
+R$* < @ $=w . > $*	$: $1 < @ $2 . @ $M > $3
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . @ $M > $2
+R$* < @ $+ @ > $*	$: $1 < @ $2 > $3		$M is null
+R$* < @ $+ @ $+ > $*	$: $1 < @ $3 . > $4		$M is not null
+
+###################################################################
+###  Ruleset 94 -- convert envelope names to masqueraded form	###
+###################################################################
+
+S94
+ifdef(`_MASQUERADE_ENVELOPE_', `', `#')dnl
+R$+			$@ $>93 $1
+ifdef(`_MASQUERADE_ENVELOPE_', `#', `')dnl
+R$* < @ *LOCAL* > $*	$: $1 < @ $j . > $2
+
+###################################################################
+###  Ruleset 98 -- local part of ruleset zero (can be null)	###
+###################################################################
+
+S98
+undivert(3)dnl
+undivert(9)dnl
+#
+######################################################################
+######################################################################
+#####
+`#####			MAILER DEFINITIONS'
+#####
+######################################################################
+######################################################################
+undivert(7)dnl
diff --git a/cf/m4/version.m4 b/cf/m4/version.m4
new file mode 100644
index 0000000..a2cbdc9
--- /dev/null
+++ b/cf/m4/version.m4
@@ -0,0 +1,39 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+VERSIONID(`@(#)version.m4	8.8.8.1 (Berkeley) 10/24/97')
+#
+divert(0)
+# Configuration version number
+DZ8.8.8`'ifdef(`confCF_VERSION', `/confCF_VERSION')
diff --git a/cf/mailer/cyrus.m4 b/cf/mailer/cyrus.m4
new file mode 100644
index 0000000..47a4a5a
--- /dev/null
+++ b/cf/mailer/cyrus.m4
@@ -0,0 +1,47 @@
+PUSHDIVERT(-1)
+#
+#	(C) Copyright 1995 by Carnegie Mellon University
+# 
+#                      All Rights Reserved
+# 
+# Permission to use, copy, modify, and distribute this software and its 
+# documentation for any purpose and without fee is hereby granted, 
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in 
+# supporting documentation, and that the name of CMU not be
+# used in advertising or publicity pertaining to distribution of the
+# software without specific, written prior permission.  
+# 
+# CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+# CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+# SOFTWARE.
+#
+#	Contributed to Berkeley by John Gardiner Myers <jgm+@CMU.EDU>.
+# 
+
+ifdef(`CYRUS_MAILER_FLAGS',, `define(`CYRUS_MAILER_FLAGS', `A5@')')
+ifdef(`CYRUS_MAILER_PATH',, `define(`CYRUS_MAILER_PATH', /usr/cyrus/bin/deliver)')
+ifdef(`CYRUS_MAILER_ARGS',, `define(`CYRUS_MAILER_ARGS', `deliver -e -m $h -- $u')')
+ifdef(`CYRUS_MAILER_USER',, `define(`CYRUS_MAILER_USER', `cyrus:mail')')
+ifdef(`CYRUS_BB_MAILER_FLAGS',, `define(`CYRUS_BB_MAILER_FLAGS', `')')
+ifdef(`CYRUS_BB_MAILER_ARGS',, `define(`CYRUS_BB_MAILER_ARGS', `deliver -e -m $u')')
+
+POPDIVERT
+
+##################################################
+###   Cyrus Mailer specification               ###
+##################################################
+
+VERSIONID(`@(#)cyrus.m4	8.4 (Carnegie Mellon) 9/2/96')
+
+Mcyrus,		P=CYRUS_MAILER_PATH, F=CONCAT(`lsDFMnPq', CYRUS_MAILER_FLAGS), S=10, R=20/40, T=X-Unix,
+		ifdef(`CYRUS_MAILER_MAX', `M=CYRUS_MAILER_MAX, ')U=CYRUS_MAILER_USER,
+		A=CYRUS_MAILER_ARGS
+
+Mcyrusbb,	P=CYRUS_MAILER_PATH, F=CONCAT(`lsDFMnP', CYRUS_BB_MAILER_FLAGS), S=10, R=20/40, T=X-Unix,
+		ifdef(`CYRUS_MAILER_MAX', `M=CYRUS_MAILER_MAX, ')U=CYRUS_MAILER_USER,
+		A=CYRUS_BB_MAILER_ARGS
diff --git a/cf/mailer/fax.m4 b/cf/mailer/fax.m4
new file mode 100644
index 0000000..7712465
--- /dev/null
+++ b/cf/mailer/fax.m4
@@ -0,0 +1,57 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+#  This assumes you already have Sam Leffler's HylaFAX software.
+#
+#  Tested with HylaFAX 4.0pl1
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+ifdef(`FAX_MAILER_ARGS',,
+	`define(`FAX_MAILER_ARGS', faxmail -d $u@$h $f)')
+ifdef(`FAX_MAILER_PATH',,
+	`define(`FAX_MAILER_PATH', /usr/local/bin/faxmail)')
+ifdef(`FAX_MAILER_MAX',,
+	`define(`FAX_MAILER_MAX', 100000)')
+POPDIVERT
+####################################
+###   FAX Mailer specification   ###
+####################################
+
+VERSIONID(`@(#)fax.m4	8.6 (Berkeley) 7/6/97')
+
+Mfax,		P=FAX_MAILER_PATH, F=DFMhu, S=14, R=24, M=FAX_MAILER_MAX, T=X-Phone/X-FAX/X-Unix,
+		A=FAX_MAILER_ARGS
+
+LOCAL_CONFIG
+CPFAX
diff --git a/cf/mailer/local.m4 b/cf/mailer/local.m4
new file mode 100644
index 0000000..998778a
--- /dev/null
+++ b/cf/mailer/local.m4
@@ -0,0 +1,94 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `rmn9')')
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /bin/mail)')
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `mail -d $u')')
+ifdef(`LOCAL_SHELL_FLAGS',, `define(`LOCAL_SHELL_FLAGS', `eu9')')
+ifdef(`LOCAL_SHELL_PATH',, `define(`LOCAL_SHELL_PATH', /bin/sh)')
+ifdef(`LOCAL_SHELL_ARGS',, `define(`LOCAL_SHELL_ARGS', `sh -c $u')')
+ifdef(`LOCAL_SHELL_DIR',, `define(`LOCAL_SHELL_DIR', `$z:/')')
+POPDIVERT
+
+##################################################
+###   Local and Program Mailer specification   ###
+##################################################
+
+VERSIONID(`@(#)local.m4	8.23 (Berkeley) 5/31/96')
+
+Mlocal,		P=LOCAL_MAILER_PATH, F=CONCAT(`lsDFMAw5:/|@q', LOCAL_MAILER_FLAGS), S=10/30, R=20/40,
+		_OPTINS(`LOCAL_MAILER_MAX', `M=', `, ')_OPTINS(`LOCAL_MAILER_CHARSET', `C=', `, ')T=DNS/RFC822/X-Unix,
+		A=LOCAL_MAILER_ARGS
+Mprog,		P=LOCAL_SHELL_PATH, F=CONCAT(`lsDFMoq', LOCAL_SHELL_FLAGS), S=10/30, R=20/40, D=LOCAL_SHELL_DIR,
+		_OPTINS(`LOCAL_MAILER_MAX', `M=', `, ')T=X-Unix,
+		A=LOCAL_SHELL_ARGS
+
+#
+#  Envelope sender rewriting
+#
+S10
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>94 $1		do masquerading
+
+#
+#  Envelope recipient rewriting
+#
+S20
+R$+ < @ $* >		$: $1			strip host part
+
+#
+#  Header sender rewriting
+#
+S30
+R<@>			$n			errors to mailer-daemon
+R$+			$: $>50 $1		add local domain if needed
+R$*			$: $>93 $1		do masquerading
+
+#
+#  Header recipient rewriting
+#
+S40
+R$+			$: $>50 $1		add local domain if needed
+ifdef(`_ALL_MASQUERADE_', `', `#')dnl
+R$*			$: $>93 $1		do all-masquerading
+
+#
+#  Common code to add local domain name (only if always-add-domain)
+#
+S50
+ifdef(`_ALWAYS_ADD_DOMAIN_', `', `#')dnl
+R$* < @ $* > $* 	$@ $1 < @ $2 > $3		already fully qualified
+ifdef(`_ALWAYS_ADD_DOMAIN_', `', `#')dnl
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
diff --git a/cf/mailer/mail11.m4 b/cf/mailer/mail11.m4
new file mode 100644
index 0000000..a8781cf
--- /dev/null
+++ b/cf/mailer/mail11.m4
@@ -0,0 +1,51 @@
+PUSHDIVERT(-1)
+#
+# Not exciting enough to bother with copyrights and most of the
+# rulesets are based from those provided by DEC.
+# Barb Dijker, Labyrinth Computer Services, barb@labyrinth.com
+#
+# This mailer is only useful if you have DECNET and the
+# mail11 program - gatekeeper.dec.com:/pub/DEC/gwtools.
+# 
+# For local delivery of DECNET style addresses to the local
+# DECNET node, you will need feature(use_cw_file) and put
+# your DECNET nodename in in the cw file.
+#
+ifdef(`MAIL11_MAILER_PATH',, `define(`MAIL11_MAILER_PATH', /usr/etc/mail11)')
+ifdef(`MAIL11_MAILER_FLAGS',, `define(`MAIL11_MAILER_FLAGS', nsFx)')
+ifdef(`MAIL11_MAILER_ARGS',, `define(`MAIL11_MAILER_ARGS', mail11 $g $x $h $u)')
+define(`_USE_DECNET_SYNTAX_')
+define(`_LOCAL_', ifdef(`confLOCAL_MAILER', confLOCAL_MAILER, `local'))
+
+POPDIVERT
+
+PUSHDIVERT(3)
+# DECNET delivery
+R$* < @ $=w .DECNET. >		$#_LOCAL_ $: $1			local DECnet
+R$+ < @ $+ .DECNET. >		$#mail11 $@ $2 $: $1		DECnet user
+POPDIVERT
+
+PUSHDIVERT(6)
+CPDECNET
+POPDIVERT
+
+###########################################
+###   UTK-MAIL11 Mailer specification   ###
+###########################################
+
+VERSIONID(`@(#)mail11.m4	8.4 (Berkeley) 3/18/97')
+
+Mmail11, P=MAIL11_MAILER_PATH, F=MAIL11_MAILER_FLAGS, S=15, R=25,
+	A=MAIL11_MAILER_ARGS
+
+S15
+R$+			$: $>25 $1		preprocess
+R$w :: $+		$@ $w :: $1		ready to go
+
+S25
+R$+ < @ $- .UUCP >	$: $2 ! $1		back to old style
+R$+ < @ $- .DECNET >	$: $2 :: $1		convert to DECnet style
+R$+ < @ $- .LOCAL >	$: $2 :: $1		convert to DECnet style
+R$+ < @ $=w. >		$: $2 :: $1		convert to DECnet style
+R$=w :: $+		$2			strip local names
+R$+ :: $+		$@ $1 :: $2		already qualified
diff --git a/cf/mailer/phquery.m4 b/cf/mailer/phquery.m4
new file mode 100644
index 0000000..ee359e0
--- /dev/null
+++ b/cf/mailer/phquery.m4
@@ -0,0 +1,51 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#  Contributed by Kimmo Suominen <kim@tac.nyc.ny.us>.
+#
+
+ifdef(`PH_MAILER_PATH',, `define(`PH_MAILER_PATH', /usr/local/etc/phquery)')
+ifdef(`PH_MAILER_FLAGS',, `define(`PH_MAILER_FLAGS', `ehmu')')
+ifdef(`PH_MAILER_ARGS',, `define(`PH_MAILER_ARGS', `phquery -- $u')')
+
+POPDIVERT
+
+####################################
+###   PH Mailer specification   ###
+####################################
+
+VERSIONID(`@(#)phquery.m4	8.1 (Berkeley) 8/1/95')
+
+Mph,		P=PH_MAILER_PATH, F=CONCAT(`nrDFM', PH_MAILER_FLAGS), S=10, R=20/40,
+		A=PH_MAILER_ARGS
diff --git a/cf/mailer/pop.m4 b/cf/mailer/pop.m4
new file mode 100644
index 0000000..7e8ec0d
--- /dev/null
+++ b/cf/mailer/pop.m4
@@ -0,0 +1,53 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+ifdef(`POP_MAILER_PATH',, `define(`POP_MAILER_PATH', /usr/lib/mh/spop)')
+ifdef(`POP_MAILER_FLAGS',, `define(`POP_MAILER_FLAGS', `Penu')')
+ifdef(`POP_MAILER_ARGS',, `define(`POP_MAILER_ARGS', `pop $u')')
+
+POPDIVERT
+
+####################################
+###   POP Mailer specification   ###
+####################################
+
+VERSIONID(`@(#)pop.m4	8.6 (Berkeley) 2/12/96')
+
+Mpop,		P=POP_MAILER_PATH, F=CONCAT(`lsDFMq', POP_MAILER_FLAGS), S=10, R=20/40, T=DNS/RFC822/X-Unix,
+		A=POP_MAILER_ARGS
+
+LOCAL_CONFIG
+# POP mailer is a pseudo-domain
+CPPOP
diff --git a/cf/mailer/procmail.m4 b/cf/mailer/procmail.m4
new file mode 100644
index 0000000..0ea0717
--- /dev/null
+++ b/cf/mailer/procmail.m4
@@ -0,0 +1,54 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+ifdef(`PROCMAIL_MAILER_PATH',,
+	`ifdef(`PROCMAIL_PATH',
+		`define(`PROCMAIL_MAILER_PATH', PROCMAIL_PATH)',
+		`define(`PROCMAIL_MAILER_PATH', /usr/local/bin/procmail)')')
+ifdef(`PROCMAIL_MAILER_FLAGS',,
+	`define(`PROCMAIL_MAILER_FLAGS', `SPhnu9')')
+ifdef(`PROCMAIL_MAILER_ARGS',,
+	`define(`PROCMAIL_MAILER_ARGS', `procmail -Y -m $h $f $u')')
+
+POPDIVERT
+
+######################*****##############
+###   PROCMAIL Mailer specification   ###
+##################*****##################
+
+VERSIONID(`@(#)procmail.m4	8.6 (Berkeley) 4/30/97')
+
+Mprocmail,	P=PROCMAIL_MAILER_PATH, F=CONCAT(`DFM', PROCMAIL_MAILER_FLAGS), S=11/31, R=21/31, T=DNS/RFC822/X-Unix,
+		ifdef(`PROCMAIL_MAILER_MAX', `M=PROCMAIL_MAILER_MAX, ')A=PROCMAIL_MAILER_ARGS
diff --git a/cf/mailer/smtp.m4 b/cf/mailer/smtp.m4
new file mode 100644
index 0000000..c816c73
--- /dev/null
+++ b/cf/mailer/smtp.m4
@@ -0,0 +1,137 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+ifdef(`SMTP_MAILER_FLAGS',, `define(`SMTP_MAILER_FLAGS', `')')
+ifdef(`SMTP_MAILER_ARGS',, `define(`SMTP_MAILER_ARGS', `IPC $h')')
+ifdef(`ESMTP_MAILER_ARGS',, `define(`ESMTP_MAILER_ARGS', `IPC $h')')
+ifdef(`SMTP8_MAILER_ARGS',, `define(`SMTP8_MAILER_ARGS', `IPC $h')')
+ifdef(`RELAY_MAILER_ARGS',, `define(`RELAY_MAILER_ARGS', `IPC $h')')
+ifdef(`_MAILER_uucp_',
+	`errprint(`*** MAILER(smtp) must appear before MAILER(uucp)')')dnl
+POPDIVERT
+#####################################
+###   SMTP Mailer specification   ###
+#####################################
+
+VERSIONID(`@(#)smtp.m4	8.33 (Berkeley) 7/9/96')
+
+Msmtp,		P=[IPC], F=CONCAT(mDFMuX, SMTP_MAILER_FLAGS), S=11/31, R=ifdef(`_ALL_MASQUERADE_', `21/31', `21'), E=\r\n, L=990,
+		_OPTINS(`SMTP_MAILER_MAX', `M=', `, ')_OPTINS(`SMTP_MAILER_CHARSET', `C=', `, ')T=DNS/RFC822/SMTP,
+		A=SMTP_MAILER_ARGS
+Mesmtp,		P=[IPC], F=CONCAT(mDFMuXa, SMTP_MAILER_FLAGS), S=11/31, R=ifdef(`_ALL_MASQUERADE_', `21/31', `21'), E=\r\n, L=990,
+		_OPTINS(`SMTP_MAILER_MAX', `M=', `, ')_OPTINS(`SMTP_MAILER_CHARSET', `C=', `, ')T=DNS/RFC822/SMTP,
+		A=ESMTP_MAILER_ARGS
+Msmtp8,		P=[IPC], F=CONCAT(mDFMuX8, SMTP_MAILER_FLAGS), S=11/31, R=ifdef(`_ALL_MASQUERADE_', `21/31', `21'), E=\r\n, L=990,
+		_OPTINS(`SMTP_MAILER_MAX', `M=', `, ')_OPTINS(`SMTP_MAILER_CHARSET', `C=', `, ')T=DNS/RFC822/SMTP,
+		A=SMTP8_MAILER_ARGS
+Mrelay,		P=[IPC], F=CONCAT(mDFMuXa8, SMTP_MAILER_FLAGS), S=11/31, R=ifdef(`_ALL_MASQUERADE_', `61/71', `61'), E=\r\n, L=2040,
+		_OPTINS(`RELAY_MAILER_CHARSET', `C=', `, ')T=DNS/RFC822/SMTP,
+		A=RELAY_MAILER_ARGS
+
+#
+#  envelope sender rewriting
+#
+S11
+R$+			$: $>51 $1			sender/recipient common
+R$* :; <@>		$@				list:; special case
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>94 $1			do masquerading
+
+
+#
+#  envelope recipient rewriting --
+#  also header recipient if not masquerading recipients
+#
+S21
+R$+			$: $>51 $1			sender/recipient common
+R$+			$: $>61 $1			qualify unqual'ed names
+
+
+#
+#  header sender and masquerading header recipient rewriting
+#
+S31
+R$+			$: $>51 $1			sender/recipient common
+R:; <@>			$@				list:; special case
+
+# do special header rewriting
+R$* <@> $*		$@ $1 <@> $2			pass null host through
+R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
+R$*			$: $>61 $1			qualify unqual'ed names
+R$+			$: $>93 $1			do masquerading
+
+
+#
+#  convert pseudo-domain addresses to real domain addresses
+#
+S51
+
+# pass <route-addr>s through
+R< @ $+ > $*		$@ < @ $1 > $2			resolve <route-addr>
+
+# output fake domains as user%fake@relay
+ifdef(`BITNET_RELAY',
+`R$+ <@ $+ .BITNET. >	$: $1 % $2 .BITNET < @ $B >	user@host.BITNET
+R$+.BITNET <@ $+:$+ >	$: $1 .BITNET < @ $3 >		strip mailer: part',
+	`dnl')
+ifdef(`_NO_UUCP_', `dnl', `
+# do UUCP heuristics; note that these are shared with UUCP mailers
+R$+ < @ $+ .UUCP. >	$: < $2 ! > $1			convert to UUCP form
+R$+ < @ $* > $*		$@ $1 < @ $2 > $3		not UUCP form
+
+# leave these in .UUCP form to avoid further tampering
+R< $&h ! > $- ! $+	$@ $2 < @ $1 .UUCP. >
+R< $&h ! > $-.$+ ! $+	$@ $3 < @ $1.$2 >
+R< $&h ! > $+		$@ $1 < @ $&h .UUCP. >
+R< $+ ! > $+		$: $1 ! $2 < @ $Y >		use UUCP_RELAY
+R$+ < @ $+ : $+ >	$@ $1 < @ $3 >			strip mailer: part
+R$+ < @ >		$: $1 < @ *LOCAL* >		if no UUCP_RELAY')
+
+
+#
+#  common sender and masquerading recipient rewriting
+#
+S61
+
+R$* < @ $* > $*		$@ $1 < @ $2 > $3		already fully qualified
+R$+			$@ $1 < @ *LOCAL* >		add local qualification
+
+
+#
+#  relay mailer header masquerading recipient rewriting
+#
+S71
+
+R$+			$: $>61 $1
+R$+			$: $>93 $1
diff --git a/cf/mailer/usenet.m4 b/cf/mailer/usenet.m4
new file mode 100644
index 0000000..2abf3b0
--- /dev/null
+++ b/cf/mailer/usenet.m4
@@ -0,0 +1,48 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+ifdef(`USENET_MAILER_PATH',, `define(`USENET_MAILER_PATH', /usr/lib/news/inews)')
+ifdef(`USENET_MAILER_FLAGS',, `define(`USENET_MAILER_FLAGS', `rlsDFMmn')')
+ifdef(`USENET_MAILER_ARGS',, `define(`USENET_MAILER_ARGS', `inews -m -h -n')')
+POPDIVERT
+####################################
+###  USENET Mailer specification ###
+####################################
+
+VERSIONID(`@(#)usenet.m4	8.5 (Berkeley) 4/26/95')
+
+Musenet,	P=USENET_MAILER_PATH, F=USENET_MAILER_FLAGS, S=10, R=20,
+		_OPTINS(`USENET_MAILER_MAX', `M=', `, ')T=X-Usenet/X-Usenet/X-Unix,
+		A=USENET_MAILER_ARGS $u
diff --git a/cf/mailer/uucp.m4 b/cf/mailer/uucp.m4
new file mode 100644
index 0000000..023982f
--- /dev/null
+++ b/cf/mailer/uucp.m4
@@ -0,0 +1,174 @@
+PUSHDIVERT(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+ifdef(`UUCP_MAILER_PATH',, `define(`UUCP_MAILER_PATH', /usr/bin/uux)')
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -a$g -gC $h!rmail ($u)')')
+ifdef(`UUCP_MAILER_FLAGS',, `define(`UUCP_MAILER_FLAGS', `')')
+ifdef(`UUCP_MAILER_MAX',,
+	`define(`UUCP_MAILER_MAX',
+		`ifdef(`UUCP_MAX_SIZE', `UUCP_MAX_SIZE', 100000)')')
+POPDIVERT
+#####################################
+###   UUCP Mailer specification   ###
+#####################################
+
+VERSIONID(`@(#)uucp.m4	8.25 (Berkeley) 3/16/97')
+
+#
+#  There are innumerable variations on the UUCP mailer.  It really
+#  is rather absurd.
+#
+
+# old UUCP mailer (two names)
+Muucp,		P=UUCP_MAILER_PATH, F=CONCAT(DFMhuUd, UUCP_MAILER_FLAGS), S=12, R=22/42, M=UUCP_MAILER_MAX,
+		_OPTINS(`UUCP_MAILER_CHARSET', `C=', `, ')T=X-UUCP/X-UUCP/X-Unix,
+		A=UUCP_MAILER_ARGS
+Muucp-old,	P=UUCP_MAILER_PATH, F=CONCAT(DFMhuUd, UUCP_MAILER_FLAGS), S=12, R=22/42, M=UUCP_MAILER_MAX,
+		_OPTINS(`UUCP_MAILER_CHARSET', `C=', `, ')T=X-UUCP/X-UUCP/X-Unix,
+		A=UUCP_MAILER_ARGS
+
+# smart UUCP mailer (handles multiple addresses) (two names)
+Msuucp,		P=UUCP_MAILER_PATH, F=CONCAT(mDFMhuUd, UUCP_MAILER_FLAGS), S=12, R=22/42, M=UUCP_MAILER_MAX,
+		_OPTINS(`UUCP_MAILER_CHARSET', `C=', `, ')T=X-UUCP/X-UUCP/X-Unix,
+		A=UUCP_MAILER_ARGS
+Muucp-new,	P=UUCP_MAILER_PATH, F=CONCAT(mDFMhuUd, UUCP_MAILER_FLAGS), S=12, R=22/42, M=UUCP_MAILER_MAX,
+		_OPTINS(`UUCP_MAILER_CHARSET', `C=', `, ')T=X-UUCP/X-UUCP/X-Unix,
+		A=UUCP_MAILER_ARGS
+
+ifdef(`_MAILER_smtp_',
+`# domain-ized UUCP mailer
+Muucp-dom,	P=UUCP_MAILER_PATH, F=CONCAT(mDFMhud, UUCP_MAILER_FLAGS), S=52/31, R=ifdef(`_ALL_MASQUERADE_', `21/31', `21'), M=UUCP_MAILER_MAX,
+		_OPTINS(`UUCP_MAILER_CHARSET', `C=', `, ')T=X-UUCP/X-UUCP/X-Unix,
+		A=UUCP_MAILER_ARGS
+
+# domain-ized UUCP mailer with UUCP-style sender envelope
+Muucp-uudom,	P=UUCP_MAILER_PATH, F=CONCAT(mDFMhud, UUCP_MAILER_FLAGS), S=72/31, R=ifdef(`_ALL_MASQUERADE_', `21/31', `21'), M=UUCP_MAILER_MAX,
+		_OPTINS(`UUCP_MAILER_CHARSET', `C=', `, ')T=X-UUCP/X-UUCP/X-Unix,
+		A=UUCP_MAILER_ARGS')
+
+
+#
+#  envelope and header sender rewriting
+#
+S12
+
+# handle error address as a special case
+R<@>				$n			errors to mailer-daemon
+
+# list:; syntax should disappear
+R:; <@>				$@
+
+R$* < @ $* . > $*		$1 < @ $2 > $3		strip trailing dots
+R$* < @ $=w >			$1			strip local name
+R<@ $- . UUCP > : $+		$1 ! $2			convert to UUCP format
+R<@ $+ > : $+			$1 ! $2			convert to UUCP format
+R$* < @ $- . UUCP >		$2 ! $1			convert to UUCP format
+R$* < @ $+ >			$2 ! $1			convert to UUCP format
+R$&h ! $+ ! $+			$@ $1 ! $2		$h!...!user => ...!user
+R$&h ! $+			$@ $&h ! $1		$h!user => $h!user
+R$+				$: $U ! $1		prepend our name
+R! $+				$: $k ! $1		in case $U undefined
+
+#
+#  envelope recipient rewriting
+#
+S22
+
+# list:; should disappear
+R:; <@>				$@
+
+R$* < @ $* . > $*		$1 < @ $2 > $3		strip trailing dots
+R$* < @ $=w >			$1			strip local name
+R<@ $- . UUCP > : $+		$1 ! $2			convert to UUCP format
+R<@ $+ > : $+			$1 ! $2			convert to UUCP format
+R$* < @ $- . UUCP >		$2 ! $1			convert to UUCP format
+R$* < @ $+ >			$2 ! $1			convert to UUCP format
+
+#
+#  header recipient rewriting
+#
+S42
+
+# list:; syntax should disappear
+R:; <@>				$@
+
+R$* < @ $* . > $*		$1 < @ $2 > $3		strip trailing dots
+R$* < @ $=w >			$1			strip local name
+R<@ $- . UUCP > : $+		$1 ! $2			convert to UUCP format
+R<@ $+ > : $+			$1 ! $2			convert to UUCP format
+R$* < @ $- . UUCP >		$2 ! $1			convert to UUCP format
+R$* < @ $+ >			$2 ! $1			convert to UUCP format
+R$&h ! $+ ! $+			$@ $1 ! $2		$h!...!user => ...!user
+R$&h ! $+			$@ $&h ! $1		$h!user => $h!user
+R$+				$: $U ! $1		prepend our name
+R! $+				$: $k ! $1		in case $U undefined
+
+
+ifdef(`_MAILER_smtp_',
+`#
+#  envelope sender rewriting for uucp-dom mailer
+#
+S52
+
+# handle error address as a special case
+R<@>				$n			errors to mailer-daemon
+
+# pass everything to standard SMTP mailer rewriting
+R$*				$@ $>11 $1
+
+#
+#  envelope sender rewriting for uucp-uudom mailer
+#
+S72
+
+# handle error address as a special case
+R<@>				$n			errors to mailer-daemon
+
+# do standard SMTP mailer rewriting
+R$*				$: $>11 $1
+
+R$* < @ $* . > $*		$1 < @ $2 > $3		strip trailing dots
+R<@ $- . UUCP > : $+		$@ $1 ! $2		convert to UUCP format
+R<@ $+ > : $+			$@ $1 ! $2		convert to UUCP format
+R$* < @ $- . UUCP >		$@ $2 ! $1		convert to UUCP format
+R$* < @ $+ >			$@ $2 ! $1		convert to UUCP format')
+
+
+PUSHDIVERT(4)
+# resolve locally connected UUCP links
+R$* < @ $=Z . UUCP. > $*	$#uucp-uudom $@ $2 $: $1 < @ $2 .UUCP. > $3
+R$* < @ $=Y . UUCP. > $*	$#uucp-new $@ $2 $: $1 < @ $2 .UUCP. > $3
+R$* < @ $=U . UUCP. > $*	$#uucp-old $@ $2 $: $1 < @ $2 .UUCP. > $3
+POPDIVERT
diff --git a/cf/ostype/aix2.m4 b/cf/ostype/aix2.m4
new file mode 100644
index 0000000..423393b
--- /dev/null
+++ b/cf/ostype/aix2.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)aix2.m4	8.2 (Berkeley) 9/19/96')
+define(`LOCAL_MAILER_PATH', /bin/bellmail)dnl
+define(`LOCAL_MAILER_ARGS', mail $u)dnl
+define(`LOCAL_MAILER_FLAGS', `mn9')dnl
+define(`confTIME_ZONE', `USE_TZ')dnl
diff --git a/cf/ostype/aix3.m4 b/cf/ostype/aix3.m4
new file mode 100644
index 0000000..153e1f6
--- /dev/null
+++ b/cf/ostype/aix3.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)aix3.m4	8.6 (Berkeley) 9/19/96')
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /bin/bellmail)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', mail $u)')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `mn9')')dnl
+define(`confTIME_ZONE', `USE_TZ')dnl
diff --git a/cf/ostype/aix4.m4 b/cf/ostype/aix4.m4
new file mode 100644
index 0000000..4dc3387
--- /dev/null
+++ b/cf/ostype/aix4.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1996 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)aix4.m4	8.1 (Berkeley) 11/13/96')
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /bin/bellmail)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', mail -F $g $u)')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `mn9')')dnl
+define(`confTIME_ZONE', `USE_TZ')dnl
diff --git a/cf/ostype/altos.m4 b/cf/ostype/altos.m4
new file mode 100644
index 0000000..10c4da9
--- /dev/null
+++ b/cf/ostype/altos.m4
@@ -0,0 +1,49 @@
+divert(-1)
+#
+# Copyright (c) 1996 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	Contributed by Tim Rice <tim@trr.metro.NET>.
+#
+
+divert(0)
+VERSIONID(`@(#)altos.m4	8.3 (Berkeley) 9/25/96')
+
+define(`ALIAS_FILE', /usr/lib/mail/aliases)dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')dnl
+ifdef(`UUCP_MAILER_PATH',, `define(`UUCP_MAILER_PATH', /usr/bin/uux)')dnl
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /usr/bin/lmail)')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', mPuhCE9)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `lmail $u')')dnl
+ifdef(`LOCAL_SHELL_FLAGS',, `define(`LOCAL_SHELL_FLAGS', Peu)')dnl
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -a$g $h!rmail ($u)')')dnl
diff --git a/cf/ostype/amdahl-uts.m4 b/cf/ostype/amdahl-uts.m4
new file mode 100644
index 0000000..3583746
--- /dev/null
+++ b/cf/ostype/amdahl-uts.m4
@@ -0,0 +1,44 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)amdahl-uts.m4	8.4 (Berkeley) 9/25/96')
+divert(-1)
+
+define(`ALIAS_FILE', /etc/mail/aliases)
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /etc/mail/sendmail.hf)')
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `fSn9')')
+define(`confCW_FILE', /etc/mail/sendmail.cw)
diff --git a/cf/ostype/aux.m4 b/cf/ostype/aux.m4
new file mode 100644
index 0000000..0f515d1
--- /dev/null
+++ b/cf/ostype/aux.m4
@@ -0,0 +1,43 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)aux.m4	8.4 (Berkeley) 9/25/96')
+define(`ALIAS_FILE', /usr/lib/aliases)dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')dnl
+ifdef(`UUCP_MAILER_PATH',, `define(`UUCP_MAILER_PATH', /usr/bin/uux)')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', mn9)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `mail -d -r $f $u')')dnl
diff --git a/cf/ostype/bsd4.3.m4 b/cf/ostype/bsd4.3.m4
new file mode 100644
index 0000000..546fd37
--- /dev/null
+++ b/cf/ostype/bsd4.3.m4
@@ -0,0 +1,39 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)bsd4.3.m4	8.4 (Berkeley) 11/13/95')
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -z -a$g $h!rmail ($u)')')dnl
diff --git a/cf/ostype/bsd4.4.m4 b/cf/ostype/bsd4.4.m4
new file mode 100644
index 0000000..835e4d8
--- /dev/null
+++ b/cf/ostype/bsd4.4.m4
@@ -0,0 +1,42 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#
+
+divert(0)
+VERSIONID(`@(#)bsd4.4.m4	8.4 (Berkeley) 11/13/95')
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /usr/share/misc/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /var/log/sendmail.st)')dnl
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /usr/libexec/mail.local)')dnl
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -z -a$g $h!rmail ($u)')')dnl
diff --git a/cf/ostype/bsdi1.0.m4 b/cf/ostype/bsdi1.0.m4
new file mode 100644
index 0000000..8bc3c21
--- /dev/null
+++ b/cf/ostype/bsdi1.0.m4
@@ -0,0 +1,38 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)bsdi1.0.m4	8.2 (Berkeley) 8/16/95')dnl
+include(_CF_DIR_`'ostype/bsd4.4.m4)dnl
diff --git a/cf/ostype/bsdi2.0.m4 b/cf/ostype/bsdi2.0.m4
new file mode 100644
index 0000000..a98ddc0
--- /dev/null
+++ b/cf/ostype/bsdi2.0.m4
@@ -0,0 +1,38 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)bsdi2.0.m4	8.1 (Berkeley) 8/16/95')dnl
+include(_CF_DIR_`'ostype/bsd4.4.m4)dnl
diff --git a/cf/ostype/dgux.m4 b/cf/ostype/dgux.m4
new file mode 100644
index 0000000..ec8f4b4
--- /dev/null
+++ b/cf/ostype/dgux.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)dgux.m4	8.4 (Berkeley) 9/19/96')
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', m9)')dnl
+define(`confTIME_ZONE', `USE_TZ')dnl
+LOCAL_CONFIG
+E_FORCE_MAIL_LOCAL_=yes
diff --git a/cf/ostype/domainos.m4 b/cf/ostype/domainos.m4
new file mode 100644
index 0000000..4af9906
--- /dev/null
+++ b/cf/ostype/domainos.m4
@@ -0,0 +1,42 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)domainos.m4	8.3 (Berkeley) 9/25/96')
+divert(-1)
+
+define(`ALIAS_FILE', /usr/lib/aliases)
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')
diff --git a/cf/ostype/dynix3.2.m4 b/cf/ostype/dynix3.2.m4
new file mode 100644
index 0000000..ffbe943
--- /dev/null
+++ b/cf/ostype/dynix3.2.m4
@@ -0,0 +1,39 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)dynix3.2.m4	8.3 (Berkeley) 9/25/96')
+define(`ALIAS_FILE', /usr/lib/aliases)dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
diff --git a/cf/ostype/gnuhurd.m4 b/cf/ostype/gnuhurd.m4
new file mode 100644
index 0000000..3676679
--- /dev/null
+++ b/cf/ostype/gnuhurd.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#
+
+divert(0)
+VERSIONID(`@(#)gnuhurd.m4	8.1 (Berkeley) 3/8/97')
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /share/misc/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /var/log/sendmail.st)')dnl
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /libexec/mail.local)')dnl
diff --git a/cf/ostype/hpux10.m4 b/cf/ostype/hpux10.m4
new file mode 100644
index 0000000..c1d7e69
--- /dev/null
+++ b/cf/ostype/hpux10.m4
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)hpux10.m4	8.8 (Berkeley) 9/25/96')
+
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /var/spool/mqueue)')dnl
+define(`ALIAS_FILE', /etc/mail/aliases)dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /etc/mail/sendmail.st)')dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /usr/share/lib/sendmail.hf)')dnl
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /usr/bin/rmail)')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `m9')')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `rmail -d $u')')dnl
+ifdef(`LOCAL_SHELL_PATH',, `define(`LOCAL_SHELL_PATH', /usr/bin/sh)')dnl
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -a$g -gC $h!rmail ($u)')')dnl
+define(`confTIME_ZONE', `USE_TZ')dnl
+dnl
+dnl	For maximum compability with HP-UX, use:
+dnl	define(`confME_TOO', True)dnl
diff --git a/cf/ostype/hpux9.m4 b/cf/ostype/hpux9.m4
new file mode 100644
index 0000000..82e4f75
--- /dev/null
+++ b/cf/ostype/hpux9.m4
@@ -0,0 +1,49 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)hpux9.m4	8.12 (Berkeley) 9/25/96')
+
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+define(`ALIAS_FILE', /usr/lib/aliases)dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')dnl
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', `/bin/rmail')')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `m9')')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `rmail -d $u')')dnl
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -a$g -gC $h!rmail ($u)')')dnl
+define(`confTIME_ZONE', `USE_TZ')dnl
+dnl
+dnl	For maximum compability with HP-UX, use:
+dnl	define(`confME_TOO', True)dnl
diff --git a/cf/ostype/irix4.m4 b/cf/ostype/irix4.m4
new file mode 100644
index 0000000..fb8eff7
--- /dev/null
+++ b/cf/ostype/irix4.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)irix4.m4	8.7 (Berkeley) 9/25/96')
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', Ehm9)')dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+define(`ALIAS_FILE', /usr/lib/aliases)dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')dnl
diff --git a/cf/ostype/irix5.m4 b/cf/ostype/irix5.m4
new file mode 100644
index 0000000..89a2975
--- /dev/null
+++ b/cf/ostype/irix5.m4
@@ -0,0 +1,61 @@
+divert(-1)
+#
+# Copyright (c) 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+#  Contributed by Kari E. Hurtta <Kari.Hurtta@dionysos.fmi.fi>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+# Notes:
+# - SGI's /etc/sendmail.cf defines also 'u' for local mailer flags -- you
+#   perhaps don't want it.
+# - Perhaps is should also add define(`LOCAL_MAILER_CHARSET', iso-8859-1)
+#   put some Asian sites may prefer otherwise -- or perhaps not.
+# - SGI's /etc/sendmail.cf seems use: A=mail -s -d $u
+#   It seems work without that -s however.
+# - SGI's /etc/sendmail.cf set's default uid and gid to 998 (guest)
+# - In SGI seems that TZ variable is needed that correct time is marked to
+#   syslog
+# - helpfile is in /etc/sendmail.hf in SGI's /etc/sendmail.cf
+#
+
+divert(0)
+VERSIONID(`@(#)irix5.m4	8.4 (Berkeley) 9/25/96')
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', Ehmu9)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `mail -s -d $u')')dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /var/spool/mqueue)')dnl
+define(`ALIAS_FILE', /etc/aliases)dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /var/sendmail.st)')dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /etc/sendmail.hf)')dnl
+define(`confDEF_USER_ID', `998:998')dnl
+define(`confTIME_ZONE', USE_TZ)dnl
diff --git a/cf/ostype/irix6.m4 b/cf/ostype/irix6.m4
new file mode 100644
index 0000000..2304c1c
--- /dev/null
+++ b/cf/ostype/irix6.m4
@@ -0,0 +1,61 @@
+divert(-1)
+#
+# Copyright (c) 1995 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+#  Contributed by Kari E. Hurtta <Kari.Hurtta@dionysos.fmi.fi>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+#
+# Notes:
+# - SGI's /etc/sendmail.cf defines also 'u' for local mailer flags -- you
+#   perhaps don't want it.
+# - Perhaps is should also add define(`LOCAL_MAILER_CHARSET', iso-8859-1)
+#   put some Asian sites may prefer otherwise -- or perhaps not.
+# - SGI's /etc/sendmail.cf seems use: A=mail -s -d $u
+#   It seems work without that -s however.
+# - SGI's /etc/sendmail.cf set's default uid and gid to 998 (guest)
+# - In SGI seems that TZ variable is needed that correct time is marked to
+#   syslog
+# - helpfile is in /etc/sendmail.hf in SGI's /etc/sendmail.cf
+#
+
+divert(0)
+VERSIONID(`@(#)irix6.m4	8.1 (Berkeley) 4/11/97')
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', Ehmu9)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `mail -s -d $u')')dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /var/spool/mqueue)')dnl
+define(`ALIAS_FILE', /etc/aliases)dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /var/sendmail.st)')dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /etc/sendmail.hf)')dnl
+define(`confDEF_USER_ID', `998:998')dnl
+define(`confTIME_ZONE', USE_TZ)dnl
diff --git a/cf/ostype/isc4.1.m4 b/cf/ostype/isc4.1.m4
new file mode 100644
index 0000000..902f49a
--- /dev/null
+++ b/cf/ostype/isc4.1.m4
@@ -0,0 +1,48 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#
+
+divert(0)
+VERSIONID(`@(#)isc4.1.m4	8.4 (Berkeley) 9/25/96')
+define(`ALIAS_FILE', /usr/lib/aliases)dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /usr/lib/sendmail.hf)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `lmail -s $u')')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `humS9')')dnl
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /bin/lmail)')dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')dnl
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -gC $h!rmail ($u)')')dnl
+ifdef(`UUCP_MAILER_PATH',, `define(`UUCP_MAILER_PATH', /usr/bin/uux)')dnl
+define(`confTIME_ZONE', `USE_TZ')dnl
diff --git a/cf/ostype/linux.m4 b/cf/ostype/linux.m4
new file mode 100644
index 0000000..527b6fa
--- /dev/null
+++ b/cf/ostype/linux.m4
@@ -0,0 +1,38 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)linux.m4	8.2 (Berkeley) 8/21/93')
+define(`LOCAL_MAILER_PATH', /bin/mail.local)dnl
diff --git a/cf/ostype/maxion.m4 b/cf/ostype/maxion.m4
new file mode 100644
index 0000000..63cc496
--- /dev/null
+++ b/cf/ostype/maxion.m4
@@ -0,0 +1,50 @@
+#
+# Copyright (c) 1996 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	Concurrent Computer Corporation Maxion system support contributed
+#	by Donald R. Laster Jr. <Laster@access.digex.com>.
+#
+
+divert(0)
+VERSIONID(`@(#)maxion.m4	8.3 (Berkeley) 9/25/96')
+
+define(`ALIAS_FILE',        `/etc/ucbmail/aliases')dnl
+define(`HELP_FILE',         `/etc/ucbmail/sendmail.hf')dnl
+define(`QUEUE_DIR',         `/var/spool/mqueue')dnl
+define(`STATUS_FILE',       `/var/adm/log/sendmail.st')dnl
+define(`LOCAL_MAILER_PATH', `/usr/bin/mail')dnl
+define(`LOCAL_MAILER_FLAGS',`rmn9')dnl
+define(`LOCAL_SHELL_FLAGS', `ehuP')dnl
+define(`LOCAL_MAILER_ARGS', `mail $u')dnl
+define(`UUCP_MAILER_ARGS',  `uux - -r -a$g -gmedium $h!rmail ($u)')dnl
+divert(-1)
diff --git a/cf/ostype/mklinux.m4 b/cf/ostype/mklinux.m4
new file mode 100644
index 0000000..00adedb
--- /dev/null
+++ b/cf/ostype/mklinux.m4
@@ -0,0 +1,44 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	MkLinux support contributed by Paul DuBois <dubois@primate.wisc.edu>
+#
+
+divert(0)
+VERSIONID(`@(#)mklinux.m4	8.2 (Berkeley) 11/17/96')
+ifdef(`STATUS_FILE',,
+	`define(`STATUS_FILE', /var/log/sendmail.st)')
+ifdef(`PROCMAIL_MAILER_PATH',,
+	define(`PROCMAIL_MAILER_PATH', `/usr/bin/procmail'))
+FEATURE(local_procmail)
diff --git a/cf/ostype/nextstep.m4 b/cf/ostype/nextstep.m4
new file mode 100644
index 0000000..8013975
--- /dev/null
+++ b/cf/ostype/nextstep.m4
@@ -0,0 +1,45 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)nextstep.m4	8.8 (Berkeley) 6/18/97')
+define(`ALIAS_FILE', /etc/sendmail/aliases)dnl
+define(`confCW_FILE', /etc/sendmail/sendmail.cw)dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /usr/lib/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /etc/sendmail/sendmail.st)')dnl
+ifdef(`UUCP_MAILER_PATH',, `define(`UUCP_MAILER_PATH', /usr/bin/uux)')dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `rmnP9')')dnl
+ifdef(`LOCAL_SHELL_FLAGS',, `define(`LOCAL_SHELL_FLAGS', `euP')')dnl
diff --git a/cf/ostype/osf1.m4 b/cf/ostype/osf1.m4
new file mode 100644
index 0000000..ee73e4f
--- /dev/null
+++ b/cf/ostype/osf1.m4
@@ -0,0 +1,40 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)osf1.m4	8.4 (Berkeley) 9/25/96')
+define(`ALIAS_FILE', /usr/adm/sendmail/aliases)dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/adm/sendmail/sendmail.st)')dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /usr/share/lib/sendmail.hf)')dnl
diff --git a/cf/ostype/powerux.m4 b/cf/ostype/powerux.m4
new file mode 100644
index 0000000..d0fd3dc
--- /dev/null
+++ b/cf/ostype/powerux.m4
@@ -0,0 +1,46 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)powerux.m4	8.1 (Berkeley) 1/16/97')
+
+define(`ALIAS_FILE', /etc/mail/aliases)dnl
+ifdef(`HELP_FILE',,`define(`HELP_FILE', /etc/mail/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',,`define(`STATUS_FILE', /etc/mail/sendmail.st)')dnl
+define(`LOCAL_MAILER_PATH', `/usr/bin/rmail')dnl
+define(`LOCAL_MAILER_FLAGS', `mn9')dnl
+define(`LOCAL_MAILER_ARGS', `rmail $u')dnl
+define(`LOCAL_SHELL_FLAGS', `ehuP')dnl
+define(`UUCP_MAILER_ARGS', `uux - -r -a$g -gmedium $h!rmail ($u)')dnl
diff --git a/cf/ostype/ptx2.m4 b/cf/ostype/ptx2.m4
new file mode 100644
index 0000000..cbe0f59
--- /dev/null
+++ b/cf/ostype/ptx2.m4
@@ -0,0 +1,46 @@
+divert(-1)
+#
+# Copyright (c) 1994 Eric P. Allman
+# Copyright (c) 1994
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+# Support for DYNIX/ptx 2.x.
+
+divert(0)
+VERSIONID(`@(#)ptx2.m4	8.5 (Berkeley) 9/25/96')
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+define(`ALIAS_FILE', /usr/lib/aliases)dnl
+ifdef(`HELP_FILE',,`define(`HELP_FILE', /usr/lib/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',,`define(`STATUS_FILE', /usr/lib/sendmail.st)')dnl
+define(`LOCAL_MAILER_PATH', `/bin/mail')dnl
+define(`LOCAL_MAILER_FLAGS', `fmn9')dnl
+define(`LOCAL_SHELL_FLAGS', `eu')dnl
diff --git a/cf/ostype/riscos4.5.m4 b/cf/ostype/riscos4.5.m4
new file mode 100644
index 0000000..96e3b16
--- /dev/null
+++ b/cf/ostype/riscos4.5.m4
@@ -0,0 +1,42 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)riscos4.5.m4	8.4 (Berkeley) 9/25/96')
+
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `rmail -d $u')')dnl
+define(`ALIAS_FILE', `/usr/lib/aliases')dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', `/usr/spool/mqueue')')dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', `/usr/lib/sendmail.hf')')dnl
diff --git a/cf/ostype/sco-uw-2.1.m4 b/cf/ostype/sco-uw-2.1.m4
new file mode 100644
index 0000000..ebce499
--- /dev/null
+++ b/cf/ostype/sco-uw-2.1.m4
@@ -0,0 +1,16 @@
+#
+#  SCO UnixWare 2.1.2 ostype file
+#
+#	Contributed by Christopher Durham <chrisdu@SCO.COM> of SCO.
+#
+divert(0)
+VERSIONID(`@(#)sco-uw-2.1.m4	8.1 (Berkeley) 7/6/97')
+
+define(`ALIAS_FILE', /usr/lib/mail/aliases)dnl
+ifdef(`HELP_FILE',,`define(`HELP_FILE', /usr/ucblib/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',,`define(`STATUS_FILE', /usr/ucblib/sendmail.st)')dnl
+define(`LOCAL_MAILER_PATH', `/usr/bin/rmail')dnl
+define(`LOCAL_MAILER_FLAGS', `fhCEn9')dnl
+define(`LOCAL_SHELL_FLAGS', `ehuP')dnl
+define(`UUCP_MAILER_ARGS', `uux - -r -a$g -gmedium $h!rmail ($u)')dnl
+define(`LOCAL_MAILER_ARGS',`rmail $u')dnl
diff --git a/cf/ostype/sco3.2.m4 b/cf/ostype/sco3.2.m4
new file mode 100644
index 0000000..b74eb6f
--- /dev/null
+++ b/cf/ostype/sco3.2.m4
@@ -0,0 +1,45 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)sco3.2.m4	8.4 (Berkeley) 9/25/96')
+define(`ALIAS_FILE', /usr/lib/mail/aliases)dnl
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /usr/spool/mqueue)')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /usr/lib/sendmail.st)')dnl
+ifdef(`UUCP_MAILER_PATH',, `define(`UUCP_MAILER_PATH', /usr/bin/uux)')dnl
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', /usr/bin/lmail)')dnl
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', PuhCE9)')dnl
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `lmail $u')')dnl
+ifdef(`LOCAL_SHELL_FLAGS',, `define(`LOCAL_SHELL_FLAGS', Peu)')dnl
diff --git a/cf/ostype/sinix.m4 b/cf/ostype/sinix.m4
new file mode 100644
index 0000000..278d4c8
--- /dev/null
+++ b/cf/ostype/sinix.m4
@@ -0,0 +1,42 @@
+divert(-1)
+#
+# Copyright (c) 1996 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)sinix.m4	8.2 (Berkeley) 9/13/97')
+ifdef(`QUEUE_DIR',, `define(`QUEUE_DIR', /var/spool/mqueue)')dnl
+define(`ALIAS_FILE', /etc/aliases)dnl
+define(`LOCAL_MAILER_PATH', `/bin/mail.local')dnl
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /var/sendmail.st)')dnl
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /etc/sendmail.hf)')dnl
diff --git a/cf/ostype/solaris2.m4 b/cf/ostype/solaris2.m4
new file mode 100644
index 0000000..e6553a8
--- /dev/null
+++ b/cf/ostype/solaris2.m4
@@ -0,0 +1,46 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)solaris2.m4	8.9 (Berkeley) 9/25/96')
+divert(-1)
+
+define(`ALIAS_FILE', /etc/mail/aliases)
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /etc/mail/sendmail.hf)')
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /etc/mail/sendmail.st)')
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `SnE9')')
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `mail -f $g -d $u')')
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -a$g $h!rmail ($u)')')
+define(`confCW_FILE', /etc/mail/sendmail.cw)
diff --git a/cf/ostype/solaris2.ml.m4 b/cf/ostype/solaris2.ml.m4
new file mode 100644
index 0000000..2ce5325
--- /dev/null
+++ b/cf/ostype/solaris2.ml.m4
@@ -0,0 +1,51 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	This ostype file is suitable for use on Solaris 2.x systems that
+#	have mail.local installed.  It is my understanding that this is
+#	standard as of Solaris 2.5.
+#
+
+divert(0)
+VERSIONID(`@(#)solaris2.ml.m4	8.2 (Berkeley) 9/25/96')
+divert(-1)
+
+define(`ALIAS_FILE', /etc/mail/aliases)
+ifdef(`HELP_FILE',, `define(`HELP_FILE', /etc/mail/sendmail.hf)')
+ifdef(`STATUS_FILE',, `define(`STATUS_FILE', /etc/mail/sendmail.st)')
+ifdef(`LOCAL_MAILER_PATH',, `define(`LOCAL_MAILER_PATH', `/usr/lib/mail.local')')
+ifdef(`LOCAL_MAILER_FLAGS',, `define(`LOCAL_MAILER_FLAGS', `fSmn9')')
+ifdef(`LOCAL_MAILER_ARGS',, `define(`LOCAL_MAILER_ARGS', `mail.local -d $u')')
+ifdef(`UUCP_MAILER_ARGS',, `define(`UUCP_MAILER_ARGS', `uux - -r -a$g $h!rmail ($u)')')
+define(`confCW_FILE', /etc/mail/sendmail.cw)
diff --git a/cf/ostype/sunos3.5.m4 b/cf/ostype/sunos3.5.m4
new file mode 100644
index 0000000..fe76931
--- /dev/null
+++ b/cf/ostype/sunos3.5.m4
@@ -0,0 +1,37 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)sunos3.5.m4	8.1 (Berkeley) 6/7/93')
diff --git a/cf/ostype/sunos4.1.m4 b/cf/ostype/sunos4.1.m4
new file mode 100644
index 0000000..cfa7a9a
--- /dev/null
+++ b/cf/ostype/sunos4.1.m4
@@ -0,0 +1,37 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)sunos4.1.m4	8.1 (Berkeley) 6/7/93')
diff --git a/cf/ostype/svr4.m4 b/cf/ostype/svr4.m4
new file mode 100644
index 0000000..3085db1
--- /dev/null
+++ b/cf/ostype/svr4.m4
@@ -0,0 +1,45 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)svr4.m4	8.4 (Berkeley) 9/25/96')
+
+define(`ALIAS_FILE', /usr/ucblib/aliases)dnl
+ifdef(`HELP_FILE',,`define(`HELP_FILE', /usr/ucblib/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',,`define(`STATUS_FILE', /usr/ucblib/sendmail.st)')dnl
+define(`LOCAL_MAILER_PATH', `/usr/ucblib/binmail')dnl
+define(`LOCAL_MAILER_FLAGS', `rmn9')dnl
+define(`LOCAL_SHELL_FLAGS', `ehuP')dnl
+define(`UUCP_MAILER_ARGS', `uux - -r -a$g -gmedium $h!rmail ($u)')dnl
diff --git a/cf/ostype/ultrix4.m4 b/cf/ostype/ultrix4.m4
new file mode 100644
index 0000000..f6998e1
--- /dev/null
+++ b/cf/ostype/ultrix4.m4
@@ -0,0 +1,37 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)ultrix4.m4	8.2 (Berkeley) 7/2/94')
diff --git a/cf/ostype/unknown.m4 b/cf/ostype/unknown.m4
new file mode 100644
index 0000000..7aadbb5
--- /dev/null
+++ b/cf/ostype/unknown.m4
@@ -0,0 +1,41 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+divert(0)
+VERSIONID(`@(#)unknown.m4	8.1 (Berkeley) 4/21/95')
+errprint(`*** ERROR: You have not specified a valid operating system type.')
+errprint(`	Use the OSTYPE macro to select a valid system type.  This')
+errprint(`	is necessary in order to get the proper pathnames and flags')
+errprint(`	appropriate for your environment.')
diff --git a/cf/ostype/uxpds.m4 b/cf/ostype/uxpds.m4
new file mode 100644
index 0000000..88e455b
--- /dev/null
+++ b/cf/ostype/uxpds.m4
@@ -0,0 +1,49 @@
+divert(-1)
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# Definitions for UXP/DS (Fujitsu/ICL DS/90 series)
+# Diego R. Lopez, CICA (Seville). 1995
+#
+
+divert(0)
+VERSIONID(`@(#)uxpds.m4	8.3 (Berkeley) 9/25/96')
+
+define(`confDEF_GROUP_ID', `6')
+define(`ALIAS_FILE', /usr/ucblib/aliases)dnl
+ifdef(`HELP_FILE',,`define(`HELP_FILE', /usr/ucblib/sendmail.hf)')dnl
+ifdef(`STATUS_FILE',,`define(`STATUS_FILE', /usr/ucblib/sendmail.st)')dnl
+define(`LOCAL_MAILER_PATH', `/usr/ucblib/binmail')dnl
+define(`LOCAL_MAILER_FLAGS', `rmn9')dnl
+define(`LOCAL_SHELL_FLAGS', `ehuP')dnl
+define(`UUCP_MAILER_ARGS', `uux - -r -a$f -gmedium $h!rmail ($u)')dnl
diff --git a/cf/sh/makeinfo.sh b/cf/sh/makeinfo.sh
new file mode 100644
index 0000000..68b85d3
--- /dev/null
+++ b/cf/sh/makeinfo.sh
@@ -0,0 +1,79 @@
+#!/bin/sh
+#
+# Copyright (c) 1983 Eric P. Allman
+# Copyright (c) 1988, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	@(#)makeinfo.sh	8.6 (Berkeley) 8/6/95
+#
+
+usewhoami=0
+usehostname=0
+for p in `echo $PATH | sed 's/:/ /g'`
+do
+	if [ "x$p" = "x" ]
+	then
+		p="."
+	fi
+	if [ -f $p/whoami ]
+	then
+		usewhoami=1
+		if [ $usehostname -ne 0 ]
+		then
+			break;
+		fi
+	fi
+	if [ -f $p/hostname ]
+	then
+		usehostname=1
+		if [ $usewhoami -ne 0 ]
+		then
+			break;
+		fi
+	fi
+done
+if [ $usewhoami -ne 0 ]
+then
+	user=`whoami`
+else
+	user=$LOGNAME
+fi
+
+if [ $usehostname -ne 0 ]
+then
+	host=`hostname`
+else
+	host=`uname -n`
+fi
+echo '#####' built by $user@$host on `date`
+echo '#####' in `pwd` | sed 's/\/tmp_mnt//'
+echo '#####' using $1 as configuration include directory | sed 's/\/tmp_mnt//'
+echo "define(\`__HOST__', $host)dnl"
diff --git a/cf/siteconfig/uucp.cogsci.m4 b/cf/siteconfig/uucp.cogsci.m4
new file mode 100644
index 0000000..33c7151
--- /dev/null
+++ b/cf/siteconfig/uucp.cogsci.m4
@@ -0,0 +1,6 @@
+SITE(contessa)
+SITE(emind)
+SITE(hoptoad)
+SITE(nkainc)
+SITE(well)
+SITE(ferdy)
diff --git a/cf/siteconfig/uucp.old.arpa.m4 b/cf/siteconfig/uucp.old.arpa.m4
new file mode 100644
index 0000000..81d5e94
--- /dev/null
+++ b/cf/siteconfig/uucp.old.arpa.m4
@@ -0,0 +1,4 @@
+SITE(endotsew)
+SITE(fateman)
+SITE(interlan)
+SITE(metron)
diff --git a/cf/siteconfig/uucp.ucbarpa.m4 b/cf/siteconfig/uucp.ucbarpa.m4
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/cf/siteconfig/uucp.ucbarpa.m4
@@ -0,0 +1 @@
+
diff --git a/cf/siteconfig/uucp.ucbvax.m4 b/cf/siteconfig/uucp.ucbvax.m4
new file mode 100644
index 0000000..ee2c34f
--- /dev/null
+++ b/cf/siteconfig/uucp.ucbvax.m4
@@ -0,0 +1,73 @@
+SITE(Padova)
+SITE(Shasta)
+SITE(alice)
+SITE(allegra)
+SITE(amdcad)
+SITE(att)
+SITE(attunix)
+SITE(avsd)
+SITE(bellcore bellcor)
+SITE(calma)
+SITE(cithep)
+SITE(cnmat)
+SITE(craig)
+SITE(craylab)
+SITE(decusj)
+SITE(decvax, S)
+SITE(decwrl)
+SITE(dssovax)
+SITE(eagle)
+SITE(ecovax)
+SITE(floyd)
+SITE(franz)
+SITE(geoff)
+SITE(harpo)
+SITE(ho3e2)
+SITE(hpda)
+SITE(hplabs)
+SITE(ibmsupt ibmuupa ibmpa)
+SITE(iiasa70)
+SITE(imagen)
+SITE(isunix menlo70)
+SITE(kentmth)
+SITE(lbl-csam lbl-csa)
+SITE(lime)
+SITE(mothra)
+SITE(mseonyx)
+SITE(mtxinu)
+SITE(pixar)
+SITE(pur-ee)
+SITE(purdue)
+SITE(pwbd)
+SITE(sdcarl)
+SITE(sftig)
+SITE(sgi olympus)
+SITE(sii)
+SITE(srivisi)
+SITE(ssyx)
+SITE(sun)
+SITE(trwrb)
+SITE(twg)
+SITE(ucivax)
+SITE(ucla-se)
+SITE(ucla-cs)
+SITE(ucsbcsl ucsbhub)
+SITE(ucscc)
+SITE(ucsd)
+SITE(ucsfcgl)
+SITE(ucsfmis)
+SITE(ulysses)
+SITE(unisoft)
+SITE(unmvax)
+SITE(usenix)
+SITE(uw)
+SITE(uwvax)
+SITE(vax135)
+SITE(voder)
+SITE(wheps)
+SITE(whuxle)
+SITE(whuxlj)
+SITE(xicomp)
+SITE(xprin)
+SITE(zehntel)
+SITE(zilog)
diff --git a/contrib/README b/contrib/README
new file mode 100644
index 0000000..dcf5c8f
--- /dev/null
+++ b/contrib/README
@@ -0,0 +1,10 @@
+Everything in this directory (except this file) has been contributed.
+We will not fix bugs in these programs.  Contact the original author
+for assistance.
+
+Some of these are patches to sendmail itself.  You may need to take
+care -- some of the patches may be out of date with the latest release
+of sendmail.  Also, the previous comment applies -- patches belong to
+the original author, not to me.
+
+Eric Allman, 26 May 1993
diff --git a/contrib/bitdomain.c b/contrib/bitdomain.c
new file mode 100644
index 0000000..52d6d21
--- /dev/null
+++ b/contrib/bitdomain.c
@@ -0,0 +1,409 @@
+/*
+ * By John G. Myers, jgm+@cmu.edu
+ * Version 1.2
+ *
+ * Process a BITNET "internet.listing" file, producing output
+ * suitable for input to makemap.
+ *
+ * The input file can be obtained via anonymous FTP to bitnic.educom.edu.
+ * Change directory to "netinfo" and get the file internet.listing
+ * The file is updated monthly.
+ *
+ * Feed the output of this program to "makemap hash /etc/bitdomain.db"
+ * to create the table used by the "FEATURE(bitdomain)" config file macro.
+ * If your sendmail does not have the db library compiled in, you can instead
+ * use "makemap dbm /etc/bitdomain" and
+ * "FEATURE(bitdomain,`dbm -o /etc/bitdomain')"
+ *
+ * The bitdomain table should be rebuilt monthly.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <resolv.h>
+#include <netdb.h>
+#include <ctype.h>
+#include <string.h>
+
+/* don't use sizeof because sizeof(long) is different on 64-bit machines */
+#define SHORTSIZE	2	/* size of a short (really, must be 2) */
+#define LONGSIZE	4	/* size of a long (really, must be 4) */
+
+typedef union
+{
+	HEADER	qb1;
+	char	qb2[PACKETSZ];
+} querybuf;
+
+extern int h_errno;
+extern char *malloc();
+extern char *optarg;
+extern int optind;
+
+char *lookup();
+
+main(argc, argv)
+int argc;
+char **argv;
+{
+    int opt;
+
+    while ((opt = getopt(argc, argv, "o:")) != EOF) {
+	switch (opt) {
+	case 'o':
+	    if (!freopen(optarg, "w", stdout)) {
+		perror(optarg);
+		exit(1);
+	    }
+	    break;
+
+	default:
+	    fprintf(stderr, "usage: %s [-o outfile] [internet.listing]\n",
+		    argv[0]);
+	    exit(1);
+	}
+    }
+
+    if (optind < argc) {
+	if (!freopen(argv[optind], "r", stdin)) {
+	    perror(argv[optind]);
+	    exit(1);
+	}
+    }
+    readfile(stdin);
+    finish();
+    exit(0);
+}
+
+/*
+ * Parse and process an input file
+ */
+readfile(infile)
+FILE *infile;
+{
+    int skippingheader = 1;
+    char buf[1024], *node, *hostname, *p;
+
+    while (fgets(buf, sizeof(buf), infile)) {
+	for (p = buf; *p && isspace(*p); p++);
+	if (!*p) {
+	    skippingheader = 0;
+	    continue;
+	}
+	if (skippingheader) continue;
+
+	node = p;
+	for (; *p && !isspace(*p); p++) {
+	    if (isupper(*p)) *p = tolower(*p);
+	}
+	if (!*p) {
+	    fprintf(stderr, "%-8s: no domain name in input file\n", node);
+	    continue;
+	}
+	*p++ = '\0';
+
+	for (; *p && isspace(*p); p++) ;
+	if (!*p) {
+	    fprintf(stderr, "%-8s no domain name in input file\n", node);
+	    continue;
+	}
+
+	hostname = p;
+	for (; *p && !isspace(*p); p++) {
+	    if (isupper(*p)) *p = tolower(*p);
+	}
+	*p = '\0';
+
+	/* Chop off any trailing .bitnet */
+	if (strlen(hostname) > 7 &&
+	    !strcmp(hostname+strlen(hostname)-7, ".bitnet")) {
+	    hostname[strlen(hostname)-7] = '\0';
+	}
+	entry(node, hostname, sizeof(buf)-(hostname - buf));
+    }
+}
+
+/*
+ * Process a single entry in the input file.
+ * The entry tells us that "node" expands to "domain".
+ * "domain" can either be a domain name or a bitnet node name
+ * The buffer pointed to by "domain" may be overwritten--it
+ * is of size "domainlen".
+ */
+entry(node, domain, domainlen)
+char *node;
+char *domain;
+char *domainlen;
+{
+    char *otherdomain, *p, *err;
+
+    /* See if we have any remembered information about this node */
+    otherdomain = lookup(node);
+
+    if (otherdomain && strchr(otherdomain, '.')) {
+	/* We already have a domain for this node */
+	if (!strchr(domain, '.')) {
+	    /*
+	     * This entry is an Eric Thomas FOO.BITNET kludge.
+	     * He doesn't want LISTSERV to do transitive closures, so we
+	     * do them instead.  Give the the domain expansion for "node"
+	     * (which is in "otherdomian") to FOO (which is in "domain")
+	     * if "domain" doesn't have a domain expansion already.
+	     */
+	    p = lookup(domain);
+	    if (!p || !strchr(p, '.')) remember(domain, otherdomain);
+	}
+    }
+    else {
+	if (!strchr(domain, '.') || valhost(domain, domainlen)) {
+	    remember(node, domain);
+	    if (otherdomain) {
+		/*
+		 * We previously mapped the node "node" to the node
+		 * "otherdomain".  If "otherdomain" doesn't already
+		 * have a domain expansion, give it the expansion "domain".
+		 */
+		p = lookup(otherdomain);
+		if (!p || !strchr(p, '.')) remember(otherdomain, domain);
+	    }
+	}
+	else {
+	    switch (h_errno) {
+	    case HOST_NOT_FOUND:
+		err = "not registered in DNS";
+		break;
+
+	    case TRY_AGAIN:
+		err = "temporary DNS lookup failure";
+		break;
+
+	    case NO_RECOVERY:
+		err = "non-recoverable nameserver error";
+		break;
+
+	    case NO_DATA:
+		err = "registered in DNS, but not mailable";
+		break;
+		
+	    default:
+		err = "unknown nameserver error";
+		break;
+	    }
+
+	    fprintf(stderr, "%-8s %s %s\n", node, domain, err);
+	}
+    }
+}
+
+/*
+ * Validate whether the mail domain "host" is registered in the DNS.
+ * If "host" is a CNAME, it is expanded in-place if the expansion fits
+ * into the buffer of size "hbsize".  Returns nonzero if it is, zero
+ * if it is not.  A BIND error code is left in h_errno.
+ */
+int
+valhost(host, hbsize)
+	char *host;
+	int hbsize;
+{
+	register u_char *eom, *ap;
+	register int n; 
+	HEADER *hp;
+	querybuf answer;
+	int ancount, qdcount;
+	int ret;
+	int type;
+	int qtype;
+	char nbuf[1024];
+
+	if ((_res.options & RES_INIT) == 0 && res_init() == -1)
+		return (0);
+
+	_res.options &= ~(RES_DNSRCH|RES_DEFNAMES);
+	_res.retrans = 30;
+	_res.retry = 10;
+
+	qtype = T_ANY;
+
+	for (;;) {
+		h_errno = NO_DATA;
+		ret = res_querydomain(host, "", C_IN, qtype,
+				      &answer, sizeof(answer));
+		if (ret <= 0)
+		{
+			if (errno == ECONNREFUSED || h_errno == TRY_AGAIN)
+			{
+				/* the name server seems to be down */
+				h_errno = TRY_AGAIN;
+				return 0;
+			}
+
+			if (h_errno != HOST_NOT_FOUND)
+			{
+				/* might have another type of interest */
+				if (qtype == T_ANY)
+				{
+					qtype = T_A;
+					continue;
+				}
+				else if (qtype == T_A)
+				{
+					qtype = T_MX;
+					continue;
+				}
+			}
+
+			/* otherwise, no record */
+			return 0;
+		}
+
+		/*
+		**  This might be a bogus match.  Search for A, MX, or
+		**  CNAME records.
+		*/
+
+		hp = (HEADER *) &answer;
+		ap = (u_char *) &answer + sizeof(HEADER);
+		eom = (u_char *) &answer + ret;
+
+		/* skip question part of response -- we know what we asked */
+		for (qdcount = ntohs(hp->qdcount); qdcount--; ap += ret + QFIXEDSZ)
+		{
+			if ((ret = dn_skipname(ap, eom)) < 0)
+			{
+				return 0;		/* ???XXX??? */
+			}
+		}
+
+		for (ancount = ntohs(hp->ancount); --ancount >= 0 && ap < eom; ap += n)
+		{
+			n = dn_expand((u_char *) &answer, eom, ap,
+				      (u_char *) nbuf, sizeof nbuf);
+			if (n < 0)
+				break;
+			ap += n;
+			GETSHORT(type, ap);
+			ap += SHORTSIZE + LONGSIZE;
+			GETSHORT(n, ap);
+			switch (type)
+			{
+			  case T_MX:
+			  case T_A:
+				return 1;
+
+			  case T_CNAME:
+				/* value points at name */
+				if ((ret = dn_expand((u_char *)&answer,
+				    eom, ap, (u_char *)nbuf, sizeof(nbuf))) < 0)
+					break;
+				if (strlen(nbuf) < hbsize) {
+				    (void)strcpy(host, nbuf);
+				}
+				return 1;
+
+			  default:
+				/* not a record of interest */
+				continue;
+			}
+		}
+
+		/*
+		**  If this was a T_ANY query, we may have the info but
+		**  need an explicit query.  Try T_A, then T_MX.
+		*/
+
+		if (qtype == T_ANY)
+			qtype = T_A;
+		else if (qtype == T_A)
+			qtype = T_MX;
+		else
+			return 0;
+	}
+}
+
+struct entry {
+    struct entry *next;
+    char *node;
+    char *domain;
+};
+struct entry *firstentry;
+
+/*
+ * Find any remembered information about "node"
+ */
+char *lookup(node)
+char *node;
+{
+    struct entry *p;
+
+    for (p = firstentry; p; p = p->next) {
+	if (!strcmp(node, p->node)) {
+	    return p->domain;
+	}
+    }
+    return 0;
+}
+
+/*
+ * Mark the node "node" as equivalent to "domain".  "domain" can either
+ * be a bitnet node or a domain name--if it is the latter, the mapping
+ * will be written to stdout.
+ */
+remember(node, domain)
+char *node;
+char *domain;
+{
+    struct entry *p;
+
+    if (strchr(domain, '.')) {
+	fprintf(stdout, "%-8s %s\n", node, domain);
+    }
+
+    for (p = firstentry; p; p = p->next) {
+	if (!strcmp(node, p->node)) {
+	    p->domain = malloc(strlen(domain)+1);
+	    if (!p->domain) {
+		goto outofmemory;
+	    }
+	    strcpy(p->domain, domain);
+	    return;
+	}
+    }
+
+    p = (struct entry *)malloc(sizeof(struct entry));
+    if (!p) goto outofmemory;
+
+    p->next = firstentry;
+    firstentry = p;
+    p->node = malloc(strlen(node)+1);
+    p->domain = malloc(strlen(domain)+1);
+    if (!p->node || !p->domain) goto outofmemory;
+    strcpy(p->node, node);
+    strcpy(p->domain, domain);
+    return;
+
+  outofmemory:
+    fprintf(stderr, "Out of memory\n");
+    exit(1);
+}
+
+/*
+ * Walk through the database, looking for any cases where we know
+ * node FOO is equivalent to node BAR and node BAR has a domain name.
+ * For those cases, give FOO the same domain name as BAR.
+ */
+finish()
+{
+    struct entry *p;
+    char *domain;
+
+    for (p = firstentry; p; p = p->next) {
+	if (!strchr(p->domain, '.') && (domain = lookup(p->domain))) {
+	    remember(p->node, domain);
+	}
+    }
+}
+	    
diff --git a/contrib/bsdi.mc b/contrib/bsdi.mc
new file mode 100644
index 0000000..231a7bc
--- /dev/null
+++ b/contrib/bsdi.mc
@@ -0,0 +1,191 @@
+Return-Path: sanders@austin.BSDI.COM
+Received: from hofmann.CS.Berkeley.EDU (hofmann.CS.Berkeley.EDU [128.32.34.35]) by orodruin.CS.Berkeley.EDU (8.6.9/8.7.0.Beta0) with ESMTP id KAA28278 for <eric@orodruin.CS.Berkeley.EDU>; Sat, 10 Dec 1994 10:49:08 -0800
+Received: from austin.BSDI.COM (austin.BSDI.COM [137.39.95.2]) by hofmann.CS.Berkeley.EDU (8.6.9/8.6.6.Beta11) with ESMTP id KAA09482 for <eric@cs.berkeley.edu>; Sat, 10 Dec 1994 10:49:03 -0800
+Received: from austin.BSDI.COM (sanders@localhost [127.0.0.1]) by austin.BSDI.COM (8.6.9/8.6.9) with ESMTP id MAA14919 for <eric@cs.berkeley.edu>; Sat, 10 Dec 1994 12:49:01 -0600
+Message-Id: <199412101849.MAA14919@austin.BSDI.COM>
+To: Eric Allman <eric@cs.berkeley.edu>
+Subject: Re: sorting mailings lists with fastest delivery users first 
+In-reply-to: Your message of Sat, 10 Dec 1994 08:25:30 PST.
+References: <199412101625.IAA15407@mastodon.CS.Berkeley.EDU> 
+From: Tony Sanders <sanders@bsdi.com>
+Organization: Berkeley Software Design, Inc.
+Date: Sat, 10 Dec 1994 12:49:00 -0600
+Sender: sanders@austin.BSDI.COM
+
+(some random text deleted)
+
+I'll send you something else I've hacked up.  You are free to use this
+or do with it as you like (I hereby make all my parts public domain).
+It's a sample .mc file that has comments (mostly taken from the README)
+and examples describing most of the common things people need to setup.
+
+#
+# /usr/share/sendmail/cf/sample.mc
+#
+# Do not edit /etc/sendmail.cf directly unless you cannot do what you
+# want in the master config file (/usr/share/sendmail/cf/sample.mc).
+# To create /etc/sendmail.cf from the master:
+#     cd /usr/share/sendmail/cf
+#     mv /etc/sendmail.cf /etc/sendmail.cf.save
+#     m4 < sample.mc > /etc/sendmail.cf
+#
+# Then kill and restart sendmail:
+#     sh -c 'set `cat /var/run/sendmail.pid`; kill $1; shift; eval "$@"'
+#
+# See /usr/share/sendmail/README for help in building a configuration file.
+#
+include(`../m4/cf.m4')
+VERSIONID(`@(#)$Id$')
+
+dnl # Specify your OS type below
+OSTYPE(`bsd4.4')
+
+dnl # NOTE: `dnl' is the m4 command for delete-to-newline; these are
+dnl # used to prevent those lines from appearing in the sendmail.cf.
+dnl #
+dnl # UUCP-only sites should configure FEATURE(`nodns') and SMART_HOST.
+dnl # The uucp-dom mailer requires MAILER(smtp).  For more info, see
+dnl # `UUCP Config' at the end of this file.
+
+dnl # If you are not running DNS at all, it is important to use
+dnl # FEATURE(nodns) to avoid having sendmail queue everything
+dnl # waiting for the name server to come up.
+dnl # Example:
+dnl     FEATURE(`nodns')
+
+dnl # Use FEATURE(`nocanonify') to skip address canonification via $[ ... $].
+dnl # This would generally only be used by sites that only act as mail gateways
+dnl # or which have user agents that do full canonification themselves.
+dnl # You may also want to use:
+dnl #     define(`confBIND_OPTS',`-DNSRCH -DEFNAMES')
+dnl # to turn off the usual resolver options that do a similar thing.
+dnl # Examples:
+dnl     FEATURE(`nocanonify')
+dnl     define(`confBIND_OPTS',`-DNSRCH -DEFNAMES')
+
+dnl # If /bin/hostname is not set to the FQDN (Full Qualified Domain Name;
+dnl # for example, foo.bar.com) *and* you are not running a nameserver
+dnl # (that is, you do not have an /etc/resolv.conf and are not running
+dnl # named) *and* the canonical name for your machine in /etc/hosts
+dnl # (the canonical name is the first name listed for a given IP Address)
+dnl # is not the FQDN version then define NEED_DOMAIN and specify your
+dnl # domain using `DD' (for example, if your hostname is `foo.bar.com'
+dnl # then use DDbar.com).  If in doubt, just define it anyway; doesn't hurt.
+dnl # Examples:
+dnl     define(`NEED_DOMAIN', `1')
+dnl     DDyour.site.domain
+
+dnl # Define SMART_HOST if you want all outgoing mail to go to a central
+dnl # site.  SMART_HOST applies to names qualified with non-local names.
+dnl # Example:
+dnl     define(`SMART_HOST', `smtp:firewall.bar.com')
+
+dnl # Define MAIL_HUB if you want all incoming mail sent to a
+dnl # centralized hub, as for a shared /var/spool/mail scheme.
+dnl # MAIL_HUB applies to names qualified with the name of the
+dnl # local host (e.g., "eric@foo.bar.com").
+dnl # Example:
+dnl     define(`MAIL_HUB', `smtp:mailhub.bar.com')
+
+dnl # LOCAL_RELAY is a site that will handle unqualified names, this is
+dnl # basically for site/company/department wide alias forwarding.  By
+dnl # default mail is delivered on the local host.
+dnl # Example:
+dnl     define(`LOCAL_RELAY', `smtp:mailgate.bar.com')
+
+dnl # Relay hosts for fake domains: .UUCP .BITNET .CSNET
+dnl # Examples:
+dnl     define(`UUCP_RELAY', `mailer:your_relay_host')
+dnl     define(`BITNET_RELAY', `mailer:your_relay_host')
+dnl     define(`CSNET_RELAY', `mailer:your_relay_host')
+
+dnl # Define `MASQUERADE_AS' is used to hide behind a gateway.
+dnl # add any accounts you wish to be exposed (i.e., not hidden) to the
+dnl # `EXPOSED_USER' list.
+dnl # Example:
+dnl     MASQUERADE_AS(`some.other.host')
+
+dnl # If masquerading, EXPOSED_USER defines the list of accounts
+dnl # that retain the local hostname in their address.
+dnl # Example:
+dnl     EXPOSED_USER(`postmaster hostmaster webmaster')
+
+dnl # If masquerading is enabled (using MASQUERADE_AS above) then
+dnl # FEATURE(allmasquerade) will cause recipient addresses to
+dnl # masquerade as being from the masquerade host instead of
+dnl # getting the local hostname.  Although this may be right for
+dnl # ordinary users, it breaks local aliases that aren't exposed
+dnl # using EXPOSED_USER.
+dnl # Example:
+dnl     FEATURE(allmasquerade)
+
+dnl # Include any required mailers
+MAILER(local)
+MAILER(smtp)
+MAILER(uucp)
+
+LOCAL_CONFIG
+# If this machine should be accepting mail as local for other hostnames
+# that are MXed to this hostname then add those hostnames below using
+# a line like:
+#     Cw bar.com
+# The most common case where you need this is if this machine is supposed
+# to be accepting mail for the domain.  That is, if this machine is
+# foo.bar.com and you have an MX record in the DNS that looks like:
+#     bar.com.  IN      MX      0 foo.bar.com.
+# Then you will need to add `Cw bar.com' to the config file for foo.bar.com.
+# DO NOT add Cw entries for hosts whom you simply store and forward mail
+# for or else it will attempt local delivery.  So just because bubba.bar.com
+# is MXed to your machine you should not add a `Cw bubba.bar.com' entry
+# unless you want local delivery and your machine is the highest-priority
+# MX entry (that is is has the lowest preference value in the DNS.
+
+LOCAL_RULE_0
+# `LOCAL_RULE_0' can be used to introduce alternate delivery rules.
+# For example, let's say you accept mail via an MX record for widgets.com
+# (don't forget to add widgets.com to your Cw list, as above).
+#
+# If wigets.com only has an AOL address (widgetsinc) then you could use:
+# R$+ <@ widgets.com.>  $#smtp $@aol.com. $:widgetsinc<@aol.com.>
+#
+# Or, if widgets.com was connected to you via UUCP as the UUCP host
+# widgets you might have:
+# R$+ <@ widgets.com.>   $#uucp $@widgets $:$1<@widgets.com.>
+
+dnl ###
+dnl ### UUCP Config
+dnl ###
+
+dnl # `SITECONFIG(site_config_file, name_of_site, connection)'
+dnl # site_config_file the name of a file in the cf/siteconfig
+dnl #                  directory (less the `.m4')
+dnl # name_of_site     the actual name of your UUCP site
+dnl # connection       one of U, W, X, or Y; where U means the sites listed
+dnl #                  in the config file are connected locally;  W, X, and Y
+dnl #                  build remote UUCP hub classes ($=W, etc).
+dnl # You will need to create the specific site_config_file in
+dnl #     /usr/share/sendmail/siteconfig/site_config_file.m4
+dnl # The site_config_file contains a list of directly connected UUCP hosts,
+dnl # e.g., if you only connect to UUCP site gargoyle then you could just:
+dnl #   echo 'SITE(gargoyle)' > /usr/share/sendmail/siteconfig/uucp.foobar.m4
+dnl # Example:
+dnl     SITECONFIG(`uucp.foobar', `foobar', U)
+
+dnl # If you are on a local SMTP-based net that connects to the outside
+dnl # world via UUCP, you can use LOCAL_NET_CONFIG to add appropriate rules.
+dnl # For example:
+dnl #   define(`SMART_HOST', suucp:uunet)
+dnl #   LOCAL_NET_CONFIG
+dnl #   R$* < @ $* .$m. > $*    $#smtp $@ $2.$m. $: $1 < @ $2.$m. > $3
+dnl # This will cause all names that end in your domain name ($m) to be sent
+dnl # via SMTP; anything else will be sent via suucp (smart UUCP) to uunet.
+dnl # If you have FEATURE(nocanonify), you may need to omit the dots after
+dnl # the $m.
+dnl #
+dnl # If you are running a local DNS inside your domain which is not
+dnl # otherwise connected to the outside world, you probably want to use:
+dnl #   define(`SMART_HOST', smtp:fire.wall.com)
+dnl #   LOCAL_NET_CONFIG
+dnl #   R$* < @ $* . > $*       $#smtp $@ $2. $: $1 < @ $2. > $3
+dnl # That is, send directly only to things you found in your DNS lookup;
+dnl # anything else goes through SMART_HOST.
diff --git a/contrib/converting.sun.configs b/contrib/converting.sun.configs
new file mode 100644
index 0000000..0fcd919
--- /dev/null
+++ b/contrib/converting.sun.configs
@@ -0,0 +1,446 @@
+
+		     Converting Standard Sun Config
+		      Files to Sendmail Version 8
+
+			      Rick McCarty
+			 Texas Instruments Inc.
+		     Latest Update: 08/25/93 - RJMc
+
+This document details the changes necessary to continue using your
+current SunOS sendmail.cf with sendmail version 8.  In the longer term,
+it is recommended that one move to using an m4 based configuration such
+as those shipped with sendmail, but if you're like me and have made
+enough modifications to your .cf file that you'd rather put that task
+off until later, here's the sum total of my experience to get you to
+version 8 with minimal pain.  I'll cover .cf as well as build issues.
+
+Some background - as many are surely aware, Sun has some "special"
+features in the sendmail they ship ($%x, %y LHS lookup, NIS alias DB
+search, etc.).  (Some of those features can be had in alternative forms
+in IDA sendmail, but v8 has picked up some IDA capabilities as well as
+new ones, making it IMHO a most desirable version to go to.)  What I
+will explain below includes v8 functional "equivalences" to these Sun
+sendmail features.
+
+So with that out of the way, let's begin.
+
+First, some assumptions:
+
+	1) I'm going to assume you've got sendmail version 8.6 or
+	   later in hand - if not, grab it from ftp.cs.berkeley.edu
+	   in the ucb/sendmail directory.  There are bugs in earlier
+	   versions which affect some of the needed functionality.
+
+	2) Second, I'm going to detail this based upon the
+	   "sendmail.main.cf" configuration.  (BTW, if you attempt
+	   to move to using an m4 generated config in the future,
+	   MAIL_HUB is the feature which should provide similar
+	   functionality).
+
+	   In general, the changes will be similar for a subsidiary
+	   file, but since we (my TI group) funnel all non-local mail
+	   through our mailhost, we're not as interested in getting v8
+	   to run on such systems and I haven't tried it.
+
+	3) You're using DNS and sendmail.mx.  If you're not, you ought
+	   to be, even if you're also running it along with NIS (which
+	   we do - except for gethostbyxxx() lookups, which I'll be
+	   talking about later).  I would imagine you could get things
+	   running OK without DNS support, but I haven't tried it myself.
+
+	4) You're not mounting /var/spool/mail from other systems.
+	   I haven't found a v8 feature to guarantee this will work
+	   correctly.  Anyway, in the past, we've tried doing that
+	   here and found it to be a rather "ugly" feature, though
+	   Sun ostensibly supports it ("R" option).  Perhaps v8
+	   will one day have a similar feature, but for now, bottom
+	   line, I would recommend against it.
+
+	5) You're not on Solaris or using NIS+.  I'm on 4.1.3.  I've
+	   looked at Solaris briefly and have noted that things are
+	   pretty much similar there except that they've moved some
+	   things into the /etc/mail directory.  I'd guess the
+	   executables aren't functionally all that different from
+	   what they had before - the configs are roughly the same.
+	   So I'd bet most of what I say in here will apply to
+	   Solaris.
+
+OK, let's configure our sendmail.cf!  I'll just go from the top down...
+
+			  VARIOUS DECLARATIONS
+
+1) For v8, you need to define your .cf as AT LEAST a version level 4
+   configuration.  Add the following line:
+
+	V4
+
+   There are some issues regarding certain predefined macros - $w, $j, and
+   $m.  With a V4 configuration:
+
+	$w is defined to be the hostname, which will usually be fully
+	qualified (i.e. "firefly.add.itg.ti.com").
+
+	$j should have the same value as $w.
+
+	$m will be predefined as the domain portion of $w
+	(ex. "add.itg.ti.com").
+
+   One note about this - if your configuration relies on the "w" macro to
+   be the "simple" hostname (as mine does)...
+
+   If the configuration version is 5 or larger:
+
+	$w is supposed to be the "simple" name (ex. "firefly")
+
+	$j should be the fully qualified name (i.e. "firefly.add.itg.ti.com")
+
+	$m will be predefined as the domain portion of $j
+	(ex. "add.itg.ti.com").
+
+   I have not experimented with the various combinations, so I cannot
+   guarantee you that the above definitions will always come out as
+   expected.  Bottom line:  if your sendmail.cf depends on $w being the
+   simple hostname, test it carefully or define the name explicitly,
+   for example:
+
+	Dwfirefly
+
+2) To replace the Sun's "%y" feature, we must use a hostname mapping
+   feature in v8.  If you want to do similar lookups with v8, you need
+   to define the following map (we'll go over the rules that use this
+   map later):
+
+	Khostlookup host -f -m -a.
+
+   This will define a "lookup only" map that is otherwise the same as
+   sendmail version 8's built-in "host" map (see the "Sendmail
+   Installation and Operation Guide" for details on this map.).
+
+   An important note:  Whether or not these lookups will be done via
+   NIS is a function of what gethostbyxxx() functions you link into
+   your sendmail.  DO NOT redefine your host mapping to use NIS
+   explicitly within sendmail - there can be unexpected behaviour if
+   you do so (if you do any canonicalization in your .cf, you can get
+   incorrect results, for one thing).
+
+   For example, DO NOT TRY:
+
+	Khost nis -f -a. hosts.byname
+
+3) If you're doing reverse alias mapping as done in ruleset 22, instead of:
+
+	DZmail.byaddr
+
+   you'll need to declare the following:
+
+	Kaliasrev nis -f -N mail.byaddr
+
+4) If you are doing any other NIS map lookups, you'll need to define the
+   map as done in the below example.  I have a "mailhosts" map, which I
+   use to distinguish between local and non-local hosts.  Look at the
+   sendmail doc for details on this stuff.
+
+	Kmailhosts nis -f -m -a. mailhosts 
+
+5) You might wish to add the following line to support Errors-To: headers.
+   I don't.
+
+	Ol
+
+6) Comment out/remove the following line:
+
+	OR
+
+   The R option means something different under v8 - check the documentation
+   if you're interested in using it.
+
+7) If you're running NIS and have a separate alias map, BELOW the
+   following line where the alias file is declared:
+
+	OA/etc/aliases
+
+   ADD the following:
+
+	OAnis:mail.aliases
+
+   This will set things up so v8 will look at the local alias DB first,
+   then the NIS map, just as Sun sendmail does.
+
+8) Though you don't have to, I'd suggest changing:
+
+	OT3d
+
+   to use v8's warning feature, which allows a warning message to be
+   sent if a message cannot be delivered within a specified period.
+   I use:
+
+	OT5d/4h
+
+   which says - bounce after 5 days, warn after 4 hours.
+
+9) I set the following option to be explicit about how I want DNS
+    handled:
+
+	OI +DNSRCH +DEFNAMES
+
+10) The following line:
+
+	T root daemon uucp
+
+    may be deleted, though it will be ignored if you leave it around.
+
+11) It would probably be good to change the version macro value (which
+    shows up in "Received:" headers) so no one debugging mail problems
+    gets the wrong idea about what config you're running under.  Look
+    for something like:
+
+	DVSMI-4.1
+
+    Mine, for example is:
+
+	DVADD-HUB-2.1
+
+				RULESETS
+
+1)  In ruleset 3, BELOW this rule:
+
+	# basic textual canonicalization
+	R$*<$+>$*		$2			basic RFC822 parsing
+
+
+I add the following rule to remove a trailing dot in the domain spec so
+it won't interfere with v8 mapping features, etc.  (Having a trailing dot is
+not RFC-compliant anyway.):
+
+	R$+.			$1
+
+2) Because ruleset 5 is special in v8, I rename it to S95 and also change
+   all RHS expressions containing ">5" to use ">95" instead.  In v8,
+   5 is executed against addresses which resolve to the local mailer and
+   are not an alias.  If you don't change S5 to something else, you might
+   get a surprise!
+
+3) If you're doing any lookups via the generalized NIS "$%x/$!x"
+   mechanisms (such as with the mailhost map I referred to earlier) it's
+   done differently under v8.  For example:
+
+	DMmailhosts
+	...
+	R$*<@$%M.uucp>$*	$#ether $@$2 $:$1<@$2>$3
+
+   takes a different map definition and two rules under version 8:
+
+	Kmailhosts nis -f -m -a. mailhosts
+	...
+	R$*<@$+.uucp>$*		$: $1<@$(mailhosts $2 $).uucp>$3
+	R$*<@$+..uucp>$*	$#ether $@$2 $:$1<@$2>$3
+
+4) Sun has a special case of the "$%x" feature for host lookups - "%y" is
+   automagically defined to do an NIS "hosts.byname" search with no other
+   definition, as done in the below example:
+
+	R$*<@$%y.LOCAL>$*	$#ether $@$2 $:$1<@$2>$3
+
+   (Sun does this in more than one place.  But the above syntax is almost
+    identical in each - mostly a case of changing names to protect the
+    innocent.)
+
+   In version 8, the predefined "host" map can be used to do essentially
+   the same thing.  (However, whether or not it does an NIS lookup is
+   a function of what gethostbyxxx() functions are linked in.)
+
+   Recall the map definition I mentioned earlier in the DECLARATIONS
+   section:
+
+	Khostlookup host -f -m -a.
+
+   Here's where we will use it.  It will take two rules:
+
+	R$*<@$+.LOCAL>$*	$: $1<@$(hostlookup $2 $).LOCAL>$3
+	R$*<@$+..LOCAL>$*	$#ether $@$2 $:$1<@$2>$3
+
+   Note that this is almost verbatim the same change as was used in the
+   previous "mailhosts" example.
+
+5) Although Sun's default configs don't do this, because I mentioned
+   canonicalization earlier, it deserves an example, as it's illustrative
+   of the functional difference in the map definitions I discussed before.
+   This stuff is also convered in the "Sendmail Installation and Operation
+   Guide".
+
+   Remember the built-in "host" map definition?  As you'll recall, unlike
+   the "hostlookup" map we defined, "host" will actually CHANGE the
+   hostname in addition to appending a dot.  "hostlookup" only appends a
+   dot if the name is found and doesn't change it otherwise.  Anyway,
+   here's the example:
+
+	R$*<@$+>$*	$: $1<@$(host $2 $)>$3		canonicalize
+	R$*<@$+.>$*	$1<@$2>$3			remove trailing dot
+
+   Using the above, say you had input of:
+
+	joe<@tilde>
+
+	OR
+
+	joe<@[128.247.160.56]>
+
+	Assuming "tilde" or the IP address is found, it might be
+        canonicalized as:
+
+	joe<@tilde.csc.ti.com>
+
+6) As another instance of the NIS lookup feature, with a slightly
+   different twist, Sun implements reverse alias mapping in ruleset 22
+   with the below:
+
+	DZmail.byaddr
+	...
+	R$-<@$->		$:$>3${Z$1@$2$}			invert aliases
+
+   To use this feature under v8, change the above rule a (remember to
+   define the alias map as I showed earlier):
+
+	R$-<@$->		$:$>3$(aliasrev $1@$2 $)	invert aliases
+
+
+			   MAILER DEFINITIONS
+
+1) Where "TCP" is defined in the "P=" and "A=" parameters of mailers, I
+   changed it to "IPC".  Version 8 will accept "TCP", but "IPC" is
+   preferred.
+
+2) On all IPC mailers, I also defined "E=\r\n" and added an "L=1000" as
+   in the below example:
+
+	Mether,	P=[IPC], F=mDFMuCX, S=11, R=21, L=1000, E=\r\n, A=IPC $h
+
+   The "E=\r\n" will save you headaches interoperating with such things as
+   VMS TCP products.
+
+   The "L=1000" is for RFC821 compatibility.  Not strictly necessary.
+
+   I also removed the "s" (strip quotes) mailer flag Sun puts in for
+   these mailers.  Stripping quotes violates protocols, which say
+   clearly that you can't touch the local-part (left hand side of
+   the @) until you are on the delivering host.
+
+NOW.  If I haven't left anything out, you should be able to run through
+your Sun sendmail.cf file and convert it to run under v8.
+
+			      BUILD ISSUES
+
+Some important notes on building v8 on SunOS:
+
+Makefile
+
+The default makefile in the version 8 source (src) directory assumes the
+new Berkeley make.  Unless you want to go to the trouble of building it,
+you can use your regular make, but you need to use a different makefile.
+You can use "Makefile.dist" or "Makefile.SunOS" in the src directory.  I
+made changes to get it to build so it is as compatible as possible with
+the file/directory locations Sun uses.  Here are some relevant sections
+out of my makefile:
+
+	CC=gcc
+
+	# use O=-O (usual) or O=-g (debugging)
+	O=	-O
+
+	# define the database mechanisms available for map & alias lookups:
+	#	-DNDBM -- use new DBM
+	#	-DNEWDB -- use new Berkeley DB
+	#	-DNDBM -DNEWDB -DYPCOMPAT -- use both plus YP compatility
+	#	-DNIS -- include client NIS support
+	# The really old (V7) DBM library is no longer supported.
+	# See READ_ME for a description of how these flags interact.
+	#DBMDEF= -DNDBM -DNEWDB
+	DBMDEF=	-DNDBM -DNIS
+
+	# environment definitions (e.g., -D_AIX3)
+	ENVDEF=
+
+	# see also conf.h for additional compilation flags
+
+	# library directories
+	LIBDIRS=-L/usr/local/lib
+
+	# libraries required on your system
+	#LIBS=	-ldb -ldbm
+	LIBS=	-ldbm -lresolv
+
+	# location of sendmail binary (usually /usr/sbin or /usr/lib)
+	BINDIR=	${DESTDIR}/usr/lib
+
+	# location of sendmail.st file (usually /var/log or /usr/lib)
+	STDIR=	${DESTDIR}/etc
+
+	# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+	HFDIR=	${DESTDIR}/usr/lib
+
+For the resolver library, you can use the one shipped with Sun if you
+want.  But I'd recommend using another version of the resolver library
+(such as the one with Bind 4.8.3 or 4.9).  Sun's resolver stuff (at
+least with 4.1.x) is quite old - I believe it is of 4.3.1 vintage.  (Do
+you get the impression I don't TRUST what Sun ships with their systems?)
+
+If you want NIS host lookup while maintaining DNS capability, you might
+take a look at resolv+, which has NIS capable gethostbyxxx() functions
+in it.  My recommendation, however, is to avoid doing NIS host lookups
+in sendmail altogether, and to use a "pure" version of the resolver
+library.
+
+There are probably no situations (at least I think so) where it makes
+any sense to link in Sun's NIS gethostbyxxx() functions from libc.
+You could, I guess do it (I haven't tried it) and wind up with a
+sendmail equivalent to the non-mx version Sun ships.  You'd need to
+insure that NAMED_BIND is not defined in the build.  (If you do
+this and have the "-b" DNS passthru option set in NIS, remember that
+while you have some DNS functionality you'll not have any MX support.
+(This, IMO, is what makes this a non-optimal choice.)
+
+		      INSTALLATION/TESTING ISSUES
+
+The sendmail.hf file in the src directory should replace the one currently
+in /usr/lib.  You also might choose to edit it a bit to "localize" what it
+says.
+
+The sendmail executable goes, of course, in /usr/lib in place of the current
+one.  What I did was create a subdirectory in /usr/lib and put all of the
+Sun sendmail stuff in there.  I named the v8 sendmail executable to be
+sendmail.v8.mx and then symbolically linked it to sendmail.
+
+One other thing.  If you use address test mode, keep in mind that
+Version 8 is like IDA in that it does not automatically execute ruleset
+3 first.  So say you're playing around with things testing addresses and
+you're used to things like:
+
+	0 jimbob@good.old.boy.com
+
+under v8 you need to say instead:
+
+	3,0 jimbob@good.old.boy.com
+
+	      INTEROPERABILITY ISSUES YOU MIGHT ENCOUNTER
+
+Be aware that sendmail v8 issues a multi-line SMTP welcome (220)
+response upon a client connection.  Most systems in your network should
+handle it OK, but there are some that choke on it, because whoever wrote
+the clients assumed only a single line.  THIS IS NOT SENDMAIL's FAULT.
+A multi-line 220 response is perfectly valid.  A likely place you'll
+encounter this problem is with non-Un*x SMTP clients.  If you do run
+into it, you should report it to the vendor.
+
+A final note about version 8 - if you follow the above configuration
+scenario, you'll notice it doesn't like to get envelope sender
+addresses it doesn't know how to get back to.  Sun sendmail would take
+anything, even though it might not be able to bounce the message back
+should something happen downstream.  So if another sendmail on a host
+that's not locally known is trying to pump mail through your v8 host,
+the ENVELOPE sender it gives had better be fully qualified.  This is
+a GREAT thing, because it helps clear up problems we've had with not
+being able to get things back to the sender, resulting in an
+overburdened postmaster.
+
+I hope this helps those running Sun sendmail feel more at ease with moving
+on to v8.  It's really worth going to.
diff --git a/contrib/etrn.pl b/contrib/etrn.pl
new file mode 100755
index 0000000..1e2cba9
--- /dev/null
+++ b/contrib/etrn.pl
@@ -0,0 +1,324 @@
+#!/usr/local/bin/perl
+'di ';
+'ds 00 \\"';
+'ig 00 ';
+#
+#       THIS PROGRAM IS ITS OWN MANUAL PAGE.  INSTALL IN man & bin.
+#
+
+# hardcoded constants, should work fine for BSD-based systems
+use Socket;
+use Getopt::Std;
+$sockaddr = 'S n a4 x8';
+
+# system requirements:
+# 	must have 'hostname' program.
+
+#############################################################################
+#  Copyright (c) 1996 John T. Beck <john@beck.org>
+#  All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#  1. Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#  3. All advertising materials mentioning features or use of this software
+#     must display the following acknowledgement:
+#       This product includes software developed by John T. Beck.
+#  4. The name of John Beck may not be used to endorse or promote products
+#     derived from this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY JOHN T. BECK ``AS IS'' AND ANY EXPRESS OR
+#  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+#  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+#  IN NO EVENT SHALL JOHN T. BECK BE LIABLE FOR ANY DIRECT, INDIRECT,
+#  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+#  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+#  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+#  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+#  This copyright notice derived from material copyrighted by the Regents
+#  of the University of California.
+#
+#  Contributions accepted.
+#############################################################################
+#  Further disclaimer: the etrn.pl script was highly leveraged from the
+#  expn.pl script which is (C) 1993 David Muir Sharnoff.
+#############################################################################
+
+$port = 'smtp';
+$av0 = $0;
+select(STDERR);
+
+$0 = "$av0 - running hostname";
+chop($name = `hostname || uname -n`);
+
+$0 = "$av0 - lookup host FQDN and IP addr";
+($hostname,$aliases,$type,$len,$thisaddr) = gethostbyname($name);
+
+$0 = "$av0 - parsing args";
+$usage = "Usage: $av0 [-wd] host [args]";
+getopts('dw');
+$watch = $opt_w;
+$debug = $opt_d;
+$server = shift(@ARGV);
+@hosts = @ARGV;
+die $usage unless $server;
+@cwfiles = ();
+
+if (!@hosts) {
+	push(@hosts,$hostname);
+
+	$0 = "$av0 - parsing sendmail.cf";
+	open(CF, "</etc/sendmail.cf") || die "open /etc/sendmail.cf: $!";
+	while (<CF>){
+		if (/^Fw.*$/){			# look for a line starting with "Fw"
+			$cwfile = $_;
+			chop($cwfile);
+			$optional = /^Fw-o/;
+			$cwfile =~ s,^Fw[^/]*,,;	# extract the file name
+
+			if (-r $cwfile) {
+			    push (@cwfiles, $cwfile);
+			} else {
+			    die "$cwfile is not readable" unless $optional;
+			}
+		}
+		if (/^Cw(.*)$/){		# look for a line starting with "Cw"
+			@cws = split (' ', $1);
+			while (@cws) {
+				$thishost = shift(@cws);
+				push(@hosts, $thishost) unless $thishost =~ "$hostname|localhost";
+			}
+		}
+	}
+	close(CF);
+
+	for $cwfile (@cwfiles) {
+		$0 = "$av0 - reading $cwfile";
+		if (open(CW, "<$cwfile")){
+			while (<CW>){
+			        next if /^\#/;
+				$thishost = $_;
+				chop($thishost);
+				push(@hosts, $thishost) unless $thishost =~ $hostname;
+			}
+			close(CW);
+		} else {
+			die "open $cwfile: $!";
+		}
+	}
+}
+
+$0 = "$av0 - building local socket";
+($name,$aliases,$proto) = getprotobyname('tcp');
+($name,$aliases,$port) = getservbyname($port,'tcp')
+	unless $port =~ /^\d+/;
+
+# look it up
+$0 = "$av0 - gethostbyname($server)";
+
+($name,$aliases,$type,$len,$thataddr) = gethostbyname($server);
+				
+# get a connection
+$0 = "$av0 - socket to $server";
+$that = pack($sockaddr, &AF_INET, $port, $thataddr);
+socket(S, &AF_INET, &SOCK_STREAM, $proto)
+	|| die "socket: $!";
+$0 = "$av0 - connect to $server";
+print "debug = $debug server = $server\n" if $debug > 8;
+if (! connect(S, $that)) {
+	$0 = "$av0 - $server: could not connect: $!\n";
+}
+select((select(S),$| = 1)[0]); # don't buffer output to S
+
+# read the greeting
+$0 = "$av0 - talking to $server";
+&alarm("greeting with $server",'');
+while(<S>) {
+	alarm(0);
+	print if $watch;
+	if (/^(\d+)([- ])/) {
+		if ($1 != 220) {
+			$0 = "$av0 - bad numeric response from $server";
+			&alarm("giving up after bad response from $server",'');
+			&read_response($2,$watch);
+			alarm(0);
+			print STDERR "$server: NOT 220 greeting: $_"
+				if ($debug || $watch);
+		}
+		last if ($2 eq " ");
+	} else {
+		$0 = "$av0 - bad response from $server";
+		print STDERR "$server: NOT 220 greeting: $_"
+			if ($debug || $watch);
+		close(S);
+	}
+	&alarm("greeting with $server",'');
+}
+alarm(0);
+	
+# if this causes problems, remove it
+$0 = "$av0 - sending helo to $server";
+&alarm("sending ehlo to $server","");
+&ps("ehlo $hostname");
+$etrn_support = 0;
+while(<S>) {
+	if (/^250([- ])ETRN(.+)$/){
+		$etrn_support = 1;
+	}
+	print if $watch;
+	last if /^\d+ /;
+}
+alarm(0);
+
+if ($etrn_support){
+	print "ETRN supported\n" if ($debug);
+	&alarm("sending etrn to $server",'');
+	while (@hosts) {
+		$server = shift(@hosts);
+		&ps("etrn $server");
+		while(<S>) {
+			print if $watch;
+			last if /^\d+ /;
+		}
+		sleep(1);
+	}
+} else {
+	print "\nETRN not supported\n\n"
+}
+
+&alarm("sending 'quit' to $server",'');
+$0 = "$av0 - sending 'quit' to $server";
+&ps("quit");
+while(<S>) {
+	print if $watch;
+	last if /^\d+ /;
+}
+close(S);
+alarm(0);
+
+select(STDOUT);
+exit(0);
+
+# print to the server (also to stdout, if -w)
+sub ps
+{
+	local($p) = @_;
+	print ">>> $p\n" if $watch;
+	print S "$p\n";
+}
+
+sub alarm
+{
+	local($alarm_action,$alarm_redirect,$alarm_user) = @_;
+	alarm(3600);
+	$SIG{ALRM} = 'handle_alarm';
+}
+
+sub handle_alarm
+{
+	&giveup($alarm_redirect,"Timed out during $alarm_action",$alarm_user);
+}
+
+# read the rest of the current smtp daemon's response (and toss it away)
+sub read_response
+{
+	local($done,$watch) = @_;
+	local(@resp);
+	print $s if $watch;
+	while(($done eq "-") && ($s = <S>) && ($s =~ /^\d+([- ])/)) {
+		print $s if $watch;
+		$done = $1;
+		push(@resp,$s);
+	}
+	return @resp;
+}
+# to pass perl -w:
+@tp;
+$flag_a;
+$flag_d;
+&handle_alarm;
+################### BEGIN PERL/TROFF TRANSITION 
+.00 ;	
+
+'di
+.nr nl 0-1
+.nr % 0
+.\\"'; __END__ 
+.\" ############## END PERL/TROFF TRANSITION
+.TH ETRN 1 "January 25, 1997"
+.AT 3
+.SH NAME
+etrn \- start mail queue run
+.SH SYNOPSIS
+.B etrn
+.RI [ -w ]
+.RI [ -d ]
+.IR hostname
+.RI [ args ]
+.SH DESCRIPTION
+.B etrn
+will use the SMTP
+.B etrn
+command to start mail delivery from the host given on the command line.
+.B etrn
+usually sends an
+.B etrn
+for each host the local sendmail accepts e-mail for, but if
+.IR args
+are specified,
+.B etrn
+uses these as arguments for the SMTP
+.B etrn
+commands passed to the host given on the command line.
+.SH OPTIONS
+.LP
+The normal mode of operation for
+.B etrn
+is to do all of its work silently.
+The following options make it more verbose.
+It is not necessary to make it verbose to see what it is
+doing because as it works, it changes its 
+.BR argv [0]
+variable to reflect its current activity.
+The 
+.IR -w ,
+watch, flag will cause
+.B etrn
+to show you its conversations with the mail daemons.
+The 
+.IR -d ,
+debug, flag will expose many of the inner workings so that
+it is possible to eliminate bugs.
+.SH ENVIRONMENT
+No enviroment variables are used.
+.SH FILES
+.B /etc/sendmail.cf
+.SH SEE ALSO
+.BR sendmail (8),
+RFC 1985.
+.SH BUGS
+Not all mail daemons will implement 
+.B etrn .
+.LP
+It is assumed that you are running domain names.
+.SH CREDITS
+Leveraged from David Muir Sharnoff's expn.pl script.
+Christian von Roques added support for
+.IR args
+and fixed a couple of bugs.
+.SH AVAILABILITY
+The latest version of 
+.B etrn
+is available in the contrib directory of the sendmail
+distribution through anonymous ftp at
+.IR ftp://ftp.sendmail.org/ucb/src/sendmail/ .
+.SH AUTHOR
+.I John T. Beck\ \ \ \ <john@beck.org>
diff --git a/contrib/expn.pl b/contrib/expn.pl
new file mode 100755
index 0000000..57f8515
--- /dev/null
+++ b/contrib/expn.pl
@@ -0,0 +1,1359 @@
+#!/usr/bin/perl
+'di ';
+'ds 00 \\"';
+'ig 00 ';
+#
+#       THIS PROGRAM IS ITS OWN MANUAL PAGE.  INSTALL IN man & bin.
+#
+
+use 5.001;
+use IO::Socket;
+
+# system requirements:
+# 	must have 'nslookup' and 'hostname' programs.
+
+# $Header: /home/muir/bin/RCS/expn,v 3.11 1997/09/10 08:14:02 muir Exp muir $
+
+# TODO:
+#	less magic should apply to command-line addresses
+#	less magic should apply to local addresses
+#	add magic to deal with cross-domain cnames
+#	disconnect & reconnect after 25 commands to the same sendmail 8.8.* host
+
+# Checklist: (hard addresses)
+#	250 Kimmo Suominen <"|/usr/local/mh/lib/slocal -user kim"@grendel.tac.nyc.ny.us>
+#	harry@hofmann.cs.Berkeley.EDU -> harry@tenet (.berkeley.edu)  [dead]
+#	bks@cs.berkeley.edu -> shiva.CS (.berkeley.edu)		      [dead]
+#	dan@tc.cornell.edu -> brown@tiberius (.tc.cornell.edu)
+
+#############################################################################
+#
+#  Copyright (c) 1993 David Muir Sharnoff
+#  All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#  1. Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#  3. All advertising materials mentioning features or use of this software
+#     must display the following acknowledgement:
+#       This product includes software developed by the David Muir Sharnoff.
+#  4. The name of David Sharnoff may not be used to endorse or promote products
+#     derived from this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE DAVID MUIR SHARNOFF ``AS IS'' AND
+#  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+#  ARE DISCLAIMED.  IN NO EVENT SHALL DAVID MUIR SHARNOFF BE LIABLE
+#  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+#  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+#  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+#  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+#  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+#  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+#  SUCH DAMAGE.
+#
+# This copyright notice derrived from material copyrighted by the Regents
+# of the University of California.
+#
+# Contributions accepted.
+#
+#############################################################################
+
+# overall structure:
+#	in an effort to not trace each address individually, but rather
+#	ask each server in turn a whole bunch of questions, addresses to
+#	be expanded are queued up.
+#
+#	This means that all accounting w.r.t. an address must be stored in
+#	various arrays.  Generally these arrays are indexed by the
+#	string "$addr *** $server" where $addr is the address to be
+#	expanded "foo" or maybe "foo@bar" and $server is the hostname
+#	of the SMTP server to contact.
+#
+
+# important global variables:
+#
+# @hosts : list of servers still to be contacted
+# $server : name of the current we are currently looking at
+# @users = $users{@hosts[0]} : addresses to expand at this server
+# $u = $users[0] : the current address being expanded
+# $names{"$users[0] *** $server"} : the 'name' associated with the address
+# $mxbacktrace{"$users[0] *** $server"} : record of mx expansion
+# $mx_secondary{$server} : other mx relays at the same priority
+# $domainify_fallback{"$users[0] *** $server"} : alternative names to try 
+#	instead of $server if $server doesn't work
+# $temporary_redirect{"$users[0] *** $server"} : when trying alternates,
+#	temporarily channel all tries along current path
+# $giveup{$server} : do not bother expanding addresses at $server
+# $verbose : -v
+# $watch : -w
+# $vw : -v or -w
+# $debug : -d
+# $valid : -a
+# $levels : -1
+# $S : the socket connection to $server
+
+$have_nslookup = 1;	# we have the nslookup program
+$port = 'smtp';
+$av0 = $0;
+$ENV{'PATH'} .= ":/usr/etc" unless $ENV{'PATH'} =~ m,/usr/etc,;
+$ENV{'PATH'} .= ":/usr/ucb" unless $ENV{'PATH'} =~ m,/usr/ucb,;
+select(STDERR);
+
+$0 = "$av0 - running hostname";
+chop($name = `hostname || uname -n`);
+
+$0 = "$av0 - lookup host FQDN and IP addr";
+($hostname,$aliases,$type,$len,$thisaddr) = gethostbyname($name);
+
+$0 = "$av0 - parsing args";
+$usage = "Usage: $av0 [-1avwd] user[\@host] [user2[host2] ...]";
+for $a (@ARGV) {
+	die $usage if $a eq "-";
+	while ($a =~ s/^(-.*)([1avwd])/$1/) {
+		eval '$'."flag_$2 += 1";
+	}
+	next if $a eq "-";
+	die $usage if $a =~ /^-/;
+	&expn(&parse($a,$hostname,undef,1));
+}
+$verbose = $flag_v;
+$watch = $flag_w;
+$vw = $flag_v + $flag_w;
+$debug = $flag_d;
+$valid = $flag_a;
+$levels = $flag_1;
+
+die $usage unless @hosts;
+if ($valid) {
+	if ($valid == 1) {
+		$validRequirement = 0.8;
+	} elsif ($valid == 2) {
+		$validRequirement = 1.0;
+	} elsif ($valid == 3) {
+		$validRequirement = 0.9;
+	} else {
+		$validRequirement = (1 - (1/($valid-3)));
+		print "validRequirement = $validRequirement\n" if $debug;
+	}
+}
+
+HOST:
+while (@hosts) {
+	$server = shift(@hosts);
+	@users = split(' ',$users{$server});
+	delete $users{$server};
+
+	# is this server already known to be bad?
+	$0 = "$av0 - looking up $server";
+	if ($giveup{$server}) {
+		&giveup('mx domainify',$giveup{$server});
+		next;
+	}
+
+	# do we already have an mx record for this host?
+	next HOST if &mxredirect($server,*users);
+
+	# look it up, or try for an mx.
+	$0 = "$av0 - gethostbyname($server)";
+
+	($name,$aliases,$type,$len,$thataddr) = gethostbyname($server);
+	# if we can't get an A record, try for an MX record.
+	unless($thataddr) {
+		&mxlookup(1,$server,"$server: could not resolve name",*users);
+		next HOST;
+	}
+				
+	# get a connection, or look for an mx
+	$0 = "$av0 - socket to $server";
+
+	$S = new IO::Socket::INET (
+		'PeerAddr' => $server,
+		'PeerPort' => $port,
+		'Proto' => 'tcp');
+
+	if (! $S || ($debug == 10 && $server =~ /relay\d.UU.NET$/i)) {
+		$0 = "$av0 - $server: could not connect: $!\n";
+		$emsg = $!;
+		unless (&mxlookup(0,$server,"$server: could not connect: $!",*users)) {
+			&giveup('mx',"$server: Could not connect: $emsg");
+		}
+		next HOST;
+	}
+	$S->autoflush(1);
+
+	# read the greeting
+	$0 = "$av0 - talking to $server";
+	&alarm("greeting with $server",'');
+	while(<$S>) {
+		alarm(0);
+		print if $watch;
+		if (/^(\d+)([- ])/) {
+			if ($1 != 220) {
+				$0 = "$av0 - bad numeric response from $server";
+				&alarm("giving up after bad response from $server",'');
+				&read_response($2,$watch);
+				alarm(0);
+				print STDERR "$server: NOT 220 greeting: $_"
+					if ($debug || $vw);
+				if (&mxlookup(0,$server,"$server: did not respond with a 220 greeting",*users)) {
+					close($S);
+					next HOST;
+				}
+			}
+			last if ($2 eq " ");
+		} else {
+			$0 = "$av0 - bad response from $server";
+			print STDERR "$server: NOT 220 greeting: $_"
+				if ($debug || $vw);
+			unless (&mxlookup(0,$server,"$server: did not respond with SMTP codes",*users)) {
+				&giveup('',"$server: did not talk SMTP");
+			}
+			close($S);
+			next HOST;
+		}
+		&alarm("greeting with $server",'');
+	}
+	alarm(0);
+	
+	# if this causes problems, remove it
+	$0 = "$av0 - sending helo to $server";
+	&alarm("sending helo to $server","");
+	&ps("helo $hostname");
+	while(<$S>) {
+		print if $watch;
+		last if /^\d+ /;
+	}
+	alarm(0);
+
+	# try the users, one by one
+	USER:
+	while(@users) {
+		$u = shift(@users);
+		$0 = "$av0 - expanding $u [\@$server]";
+
+		# do we already have a name for this user?
+		$oldname = $names{"$u *** $server"};
+
+		print &compact($u,$server)." ->\n" if ($verbose && ! $valid);
+		if ($valid) {
+			#
+			# when running with -a, we delay taking any action 
+			# on the results of our query until we have looked
+			# at the complete output.  @toFinal stores expansions
+			# that will be final if we take them.  @toExpn stores
+			# expnansions that are not final.  @isValid keeps
+			# track of our ability to send mail to each of the
+			# expansions.
+			#
+			@isValid = ();
+			@toFinal = ();
+			@toExpn = ();
+		}
+
+#		($ecode,@expansion) = &expn_vrfy($u,$server);
+		(@foo) = &expn_vrfy($u,$server);
+		($ecode,@expansion) = @foo;
+		if ($ecode) {
+			&giveup('',$ecode,$u);
+			last USER;
+		}
+
+		for $s (@expansion) {
+			$s =~ s/[\n\r]//g;
+			$0 = "$av0 - parsing $server: $s";
+
+			$skipwatch = $watch;
+
+			if ($s =~ /^[25]51([- ]).*<(.+)>/) {
+				print "$s" if $watch;
+				print "(pretending 250$1<$2>)" if ($debug && $watch);
+				print "\n" if $watch;
+				$s = "250$1<$2>";
+				$skipwatch = 0;
+			}
+
+			if ($s =~ /^250([- ])(.+)/) {
+				print "$s\n" if $skipwatch;
+				($done,$addr) = ($1,$2);
+				($newhost, $newaddr, $newname) =  &parse($addr,$server,$oldname, $#expansion == 0);
+				print "($newhost, $newaddr, $newname) = &parse($addr, $server, $oldname)\n" if $debug;
+				if (! $newhost) {
+					# no expansion is possible w/o a new server to call
+					if ($valid) {
+						push(@isValid, &validAddr($newaddr));
+						push(@toFinal,$newaddr,$server,$newname);
+					} else {
+						&verbose(&final($newaddr,$server,$newname));
+					}
+				} else {
+					$newmxhost = &mx($newhost,$newaddr);
+					print "$newmxhost = &mx($newhost)\n" 
+						if ($debug && $newhost ne $newmxhost);
+					$0 = "$av0 - parsing $newaddr [@$newmxhost]";
+					print "levels = $levels, level{$u *** $server} = ".$level{"$u *** $server"}."\n" if ($debug > 1);
+					# If the new server is the current one, 
+					# it would have expanded things for us
+					# if it could have.  Mx records must be
+					# followed to compare server names.
+					# We are also done if the recursion
+					# count has been exceeded.
+					if (&trhost($newmxhost) eq &trhost($server) || ($levels && $level{"$u *** $server"} >= $levels)) {
+						if ($valid) {
+							push(@isValid, &validAddr($newaddr));
+							push(@toFinal,$newaddr,$newmxhost,$newname);
+						} else {
+							&verbose(&final($newaddr,$newmxhost,$newname));
+						}
+					} else {
+						# more work to do...
+						if ($valid) {
+							push(@isValid, &validAddr($newaddr));
+							push(@toExpn,$newmxhost,$newaddr,$newname,$level{"$u *** $server"});
+						} else {
+							&verbose(&expn($newmxhost,$newaddr,$newname,$level{"$u *** $server"}));
+						}
+					}
+				}
+				last if ($done eq " ");
+				next;
+			}
+			# 550 is a known code...  Should the be
+			# included in -a output?  Might be a bug
+			# here.  Does it matter?  Can assume that
+			# there won't be UNKNOWN USER responses 
+			# mixed with valid users?
+			if ($s =~ /^(550)([- ])/) {
+				if ($valid) {
+					print STDERR "\@$server:$u ($oldname) USER UNKNOWN\n";
+				} else {
+					&verbose(&final($u,$server,$oldname,"USER UNKNOWN"));
+				}
+				last if ($2 eq " ");
+				next;
+			} 
+			# 553 is a known code...  
+			if ($s =~ /^(553)([- ])/) {
+				if ($valid) {
+					print STDERR "\@$server:$u ($oldname) USER AMBIGUOUS\n";
+				} else {
+					&verbose(&final($u,$server,$oldname,"USER AMBIGUOUS"));
+				}
+				last if ($2 eq " ");
+				next;
+			} 
+			# 252 is a known code...  
+			if ($s =~ /^(252)([- ])/) {
+				if ($valid) {
+					print STDERR "\@$server:$u ($oldname) REFUSED TO VRFY\n";
+				} else {
+					&verbose(&final($u,$server,$oldname,"REFUSED TO VRFY"));
+				}
+				last if ($2 eq " ");
+				next;
+			} 
+			&giveup('',"$server: did not grok '$s'",$u);
+			last USER;
+		}
+
+		if ($valid) {
+			#
+			# now we decide if we are going to take these
+			# expansions or roll them back.
+			#
+			$avgValid = &average(@isValid);
+			print "avgValid = $avgValid\n" if $debug;
+			if ($avgValid >= $validRequirement) {
+				print &compact($u,$server)." ->\n" if $verbose;
+				while (@toExpn) {
+					&verbose(&expn(splice(@toExpn,0,4)));
+				}
+				while (@toFinal) {
+					&verbose(&final(splice(@toFinal,0,3)));
+				}
+			} else {
+				print "Tossing some valid to avoid invalid ".&compact($u,$server)."\n" if ($avgValid > 0.0 && ($vw || $debug));
+				print &compact($u,$server)." ->\n" if $verbose;
+				&verbose(&final($u,$server,$newname));
+			}
+		}
+	}
+
+	&alarm("sending 'quit' to $server",'');
+	$0 = "$av0 - sending 'quit' to $server";
+	&ps("quit");
+	while(<$S>) {
+		print if $watch;
+		last if /^\d+ /;
+	}
+	close($S);
+	alarm(0);
+}
+
+$0 = "$av0 - printing final results";
+print "----------\n" if $vw;
+select(STDOUT);
+for $f (sort @final) {
+	print "$f\n";
+}
+unlink("/tmp/expn$$");
+exit(0);
+
+
+# abandon all attempts deliver to $server
+# register the current addresses as the final ones
+sub giveup
+{
+	local($redirect_okay,$reason,$user) = @_;
+	local($us,@so,$nh,@remaining_users);
+	local($pk,$file,$line);
+	($pk, $file, $line) = caller;
+
+	$0 = "$av0 - giving up on $server: $reason";
+	#
+	# add back a user if we gave up in the middle
+	#
+	push(@users,$user) if $user;
+	#
+	# don't bother with this system anymore
+	#
+	unless ($giveup{$server}) {
+		$giveup{$server} = $reason;
+		print STDERR "$reason\n";
+	}
+	print "Giveup at $file:$line!!! redirect okay = $redirect_okay; $reason\n" if $debug;
+	#
+	# Wait!
+	# Before giving up, see if there is a chance that
+	# there is another host to redirect to!
+	# (Kids, don't do this at home!  Hacking is a dangerous
+	# crime and you could end up behind bars.)
+	#
+	for $u (@users) {
+		if ($redirect_okay =~ /\bmx\b/) {
+			next if &try_fallback('mx',$u,*server,
+				*mx_secondary,
+				*already_mx_fellback);
+		}
+		if ($redirect_okay =~ /\bdomainify\b/) {
+			next if &try_fallback('domainify',$u,*server,
+				*domainify_fallback,
+				*already_domainify_fellback);
+		}
+		push(@remaining_users,$u);
+	}
+	@users = @remaining_users;
+	for $u (@users) {
+		print &compact($u,$server)." ->\n" if ($verbose && $valid && $u);
+		&verbose(&final($u,$server,$names{"$u *** $server"},$reason));
+	}
+}
+#
+# This routine is used only within &giveup.  It checks to
+# see if we really have to giveup or if there is a second
+# chance because we did something before that can be 
+# backtracked.
+#
+# %fallback{"$user *** $host"} tracks what is able to fallback
+# %fellback{"$user *** $host"} tracks what has fallen back
+#
+# If there is a valid backtrack, then queue up the new possibility
+#
+sub try_fallback
+{
+	local($method,$user,*host,*fall_table,*fellback) = @_;
+	local($us,$fallhost,$oldhost,$ft,$i);
+
+	if ($debug > 8) {
+		print "Fallback table $method:\n";
+		for $i (sort keys %fall_table) {
+			print "\t'$i'\t\t'$fall_table{$i}'\n";
+		}
+		print "Fellback table $method:\n";
+		for $i (sort keys %fellback) {
+			print "\t'$i'\t\t'$fellback{$i}'\n";
+		}
+		print "U: $user H: $host\n";
+	}
+	
+	$us = "$user *** $host";
+	if (defined $fellback{$us}) {
+		#
+		# Undo a previous fallback so that we can try again
+		# Nested fallbacks are avoided because they could
+		# lead to infinite loops
+		#
+		$fallhost = $fellback{$us};
+		print "Already $method fell back from $us -> \n" if $debug;
+		$us = "$user *** $fallhost";
+		$oldhost = $fallhost;
+	} elsif (($method eq 'mx') && (defined $mxbacktrace{$us}) && (defined $mx_secondary{$mxbacktrace{$us}})) {
+		print "Fallback an MX expansion $us -> \n" if $debug;
+		$oldhost = $mxbacktrace{$us};
+	} else {
+		print "Oldhost($host, $us) = " if $debug;
+		$oldhost = $host;
+	}
+	print "$oldhost\n" if $debug;
+	if (((defined $fall_table{$us}) && ($ft = $us)) || ((defined $fall_table{$oldhost}) && ($ft = $oldhost))) {
+		print "$method Fallback = ".$fall_table{$ft}."\n" if $debug;
+		local(@so,$newhost);
+		@so = split(' ',$fall_table{$ft});
+		$newhost = shift(@so);
+		print "Falling back ($method) $us -> $newhost (from $oldhost)\n" if $debug;
+		if ($method eq 'mx') {
+			if (! defined ($mxbacktrace{"$user *** $newhost"})) {
+				if (defined $mxbacktrace{"$user *** $oldhost"}) {
+					print "resetting oldhost $oldhost to the original: " if $debug;
+					$oldhost = $mxbacktrace{"$user *** $oldhost"};
+					print "$oldhost\n" if $debug;
+				}
+				$mxbacktrace{"$user *** $newhost"} = $oldhost;
+				print "mxbacktrace $user *** $newhost -> $oldhost\n" if $debug;
+			}
+			$mx{&trhost($oldhost)} = $newhost;
+		} else {
+			$temporary_redirect{$us} = $newhost;
+		}
+		if (@so) {
+			print "Can still $method  $us: @so\n" if $debug;
+			$fall_table{$ft} = join(' ',@so);
+		} else {
+			print "No more fallbacks for $us\n" if $debug;
+			delete $fall_table{$ft};
+		}
+		if (defined $create_host_backtrack{$us}) {
+			$create_host_backtrack{"$user *** $newhost"} 
+				= $create_host_backtrack{$us};
+		}
+		$fellback{"$user *** $newhost"} = $oldhost;
+		&expn($newhost,$user,$names{$us},$level{$us});
+		return 1;
+	}
+	delete $temporary_redirect{$us};
+	$host = $oldhost;
+	return 0;
+}
+# return 1 if you could send mail to the address as is.
+sub validAddr
+{
+	local($addr) = @_;
+	$res = &do_validAddr($addr);
+	print "validAddr($addr) = $res\n" if $debug;
+	$res;
+}
+sub do_validAddr
+{
+	local($addr) = @_;
+	local($urx) = "[-A-Za-z_.0-9+]+";
+
+	# \u
+	return 0 if ($addr =~ /^\\/);
+	# ?@h
+	return 1 if ($addr =~ /.\@$urx$/);
+	# @h:?
+	return 1 if ($addr =~ /^\@$urx\:./);
+	# h!u
+	return 1 if ($addr =~ /^$urx!./);
+	# u
+	return 1 if ($addr =~ /^$urx$/);
+	# ?
+	print "validAddr($addr) = ???\n" if $debug;
+	return 0;
+}
+# Some systems use expn and vrfy interchangeably.  Some only
+# implement one or the other.  Some check expn against mailing
+# lists and vrfy against users.  It doesn't appear to be
+# consistent.
+#
+# So, what do we do?  We try everything!
+#
+#
+# Ranking of result codes: good: 250, 251/551, 252, 550, anything else
+#
+# Ranking of inputs: best: user@host.domain, okay: user
+#
+# Return value: $error_string, @responses_from_server
+sub expn_vrfy
+{
+	local($u,$server) = @_;
+	local(@c) = ('expn', 'vrfy');
+	local(@try_u) = $u;
+	local(@ret,$code);
+
+	if (($u =~ /(.+)@(.+)/) && (&trhost($2) eq &trhost($server))) {
+		push(@try_u,$1);
+	}
+
+	TRY:
+	for $c (@c) {
+		for $try_u (@try_u) {
+			&alarm("${c}'ing $try_u on $server",'',$u);
+			&ps("$c $try_u");
+			alarm(0);
+			$s = <$S>;
+			if ($s eq '') {
+				return "$server: lost connection";
+			}
+			if ($s !~ /^(\d+)([- ])/) {
+				return "$server: garbled reply to '$c $try_u'";
+			}
+			if ($1 == 250) {
+				$code = 250;
+				@ret = ("",$s);
+				push(@ret,&read_response($2,$debug));
+				return (@ret);
+			} 
+			if ($1 == 551 || $1 == 251) {
+				$code = $1;
+				@ret = ("",$s);
+				push(@ret,&read_response($2,$debug));
+				next;
+			}
+			if ($1 == 252 && ($code == 0 || $code == 550)) {
+				$code = 252;
+				@ret = ("",$s);
+				push(@ret,&read_response($2,$watch));
+				next;
+			}
+			if ($1 == 550 && $code == 0) {
+				$code = 550;
+				@ret = ("",$s);
+				push(@ret,&read_response($2,$watch));
+				next;
+			}
+			&read_response($2,$watch);
+		}
+	}
+	return "$server: expn/vrfy not implemented" unless @ret;
+	return @ret;
+}
+# sometimes the old parse routine (now parse2) didn't
+# reject funky addresses. 
+sub parse
+{
+	local($oldaddr,$server,$oldname,$one_to_one) = @_;
+	local($newhost, $newaddr, $newname, $um) =  &parse2($oldaddr,$server,$oldname,$one_to_one);
+	if ($newaddr =~ m,^["/],) {
+		return (undef, $oldaddr, $newname) if $valid;
+		return (undef, $um, $newname);
+	}
+	return ($newhost, $newaddr, $newname);
+}
+
+# returns ($new_smtp_server,$new_address,$new_name)
+# given a response from a SMTP server ($newaddr), the 
+# current host ($server), the old "name" and a flag that
+# indicates if it is being called during the initial 
+# command line parsing ($parsing_args)
+sub parse2
+{
+	local($newaddr,$context_host,$old_name,$parsing_args) = @_;
+	local(@names) = $old_name;
+	local($urx) = "[-A-Za-z_.0-9+]+";
+	local($unmangle);
+
+	#
+	# first, separate out the address part.
+	#
+
+	#
+	# [NAME] <ADDR [(NAME)]>
+	# [NAME] <[(NAME)] ADDR
+	# ADDR [(NAME)]
+	# (NAME) ADDR
+	# [(NAME)] <ADDR>
+	#
+	if ($newaddr =~ /^\<(.*)\>$/) {
+		print "<A:$1>\n" if $debug;
+		($newaddr) = &trim($1);
+		print "na = $newaddr\n" if $debug;
+	}
+	if ($newaddr =~ /^([^\<\>]*)\<([^\<\>]*)\>([^\<\>]*)$/) {
+		# address has a < > pair in it.
+		print "N:$1 <A:$2> N:$3\n" if $debug;
+		($newaddr) = &trim($2);
+		unshift(@names, &trim($3,$1));
+		print "na = $newaddr\n" if $debug;
+	}
+	if ($newaddr =~ /^([^\(\)]*)\(([^\(\)]*)\)([^\(\)]*)$/) {
+		# address has a ( ) pair in it.
+		print "A:$1 (N:$2) A:$3\n" if $debug;
+		unshift(@names,&trim($2));
+		local($f,$l) = (&trim($1),&trim($3));
+		if (($f && $l) || !($f || $l)) {
+			# address looks like:
+			# foo (bar) baz  or (bar)
+			# not allowed!
+			print STDERR "Could not parse $newaddr\n" if $vw;
+			return(undef,$newaddr,&firstname(@names));
+		}
+		$newaddr = $f if $f;
+		$newaddr = $l if $l;
+		print "newaddr now = $newaddr\n" if $debug;
+	}
+	#
+	# @foo:bar
+	# j%k@l
+	# a@b
+	# b!a
+	# a
+	#
+	$unmangle = $newaddr;
+	if ($newaddr =~ /^\@($urx)\:(.+)$/) {
+		print "(\@:)" if $debug;
+		# this is a bit of a cheat, but it seems necessary
+		return (&domainify($1,$context_host,$2),$2,&firstname(@names),$unmangle);
+	}
+	if ($newaddr =~ /^(.+)\@($urx)$/) {
+		print "(\@)" if $debug;
+		return (&domainify($2,$context_host,$newaddr),$newaddr,&firstname(@names),$unmangle);
+	}
+	if ($parsing_args) {
+		if ($newaddr =~ /^($urx)\!(.+)$/) {
+			return (&domainify($1,$context_host,$newaddr),$newaddr,&firstname(@names),$unmangle);
+		}
+		if ($newaddr =~ /^($urx)$/) {
+			return ($context_host,$newaddr,&firstname(@names),$unmangle);
+		}
+		print STDERR "Could not parse $newaddr\n";
+	}
+	print "(?)" if $debug;
+	return(undef,$newaddr,&firstname(@names),$unmangle);
+}
+# return $u (@$server) unless $u includes reference to $server
+sub compact
+{
+	local($u, $server) = @_;
+	local($se) = $server;
+	local($sp);
+	$se =~ s/(\W)/\\$1/g;
+	$sp = " (\@$server)";
+	if ($u !~ /$se/i) {
+		return "$u$sp";
+	}
+	return $u;
+}
+# remove empty (spaces don't count) members from an array
+sub trim
+{
+	local(@v) = @_;
+	local($v,@r);
+	for $v (@v) {
+		$v =~ s/^\s+//;
+		$v =~ s/\s+$//;
+		push(@r,$v) if ($v =~ /\S/);
+	}
+	return(@r);
+}
+# using the host part of an address, and the server name, add the
+# servers' domain to the address if it doesn't already have a 
+# domain.  Since this sometimes fails, save a back reference so
+# it can be unrolled.
+sub domainify
+{
+	local($host,$domain_host,$u) = @_;
+	local($domain,$newhost);
+
+	# cut of trailing dots 
+	$host =~ s/\.$//;
+	$domain_host =~ s/\.$//;
+
+	if ($domain_host !~ /\./) {
+		#
+		# domain host isn't, keep $host whatever it is
+		#
+		print "domainify($host,$domain_host) = $host\n" if $debug;
+		return $host;
+	}
+
+	# 
+	# There are several weird situtations that need to be 
+	# accounted for.  They have to do with domain relay hosts.
+	#
+	# Examples: 
+	#	host		server		"right answer"
+	#	
+	#	shiva.cs	cs.berkeley.edu	shiva.cs.berkeley.edu
+	#	shiva		cs.berkeley.edu	shiva.cs.berekley.edu
+	#	cumulus		reed.edu	@reed.edu:cumulus.uucp
+	# 	tiberius	tc.cornell.edu	tiberius.tc.cornell.edu
+	#
+	# The first try must always be to cut the domain part out of 
+	# the server and tack it onto the host.
+	#
+	# A reasonable second try is to tack the whole server part onto
+	# the host and for each possible repeated element, eliminate 
+	# just that part.
+	#
+	# These extra "guesses" get put into the %domainify_fallback
+	# array.  They will be used to give addresses a second chance
+	# in the &giveup routine
+	#
+
+	local(%fallback);
+
+	local($long); 
+	$long = "$host $domain_host";
+	$long =~ tr/A-Z/a-z/;
+	print "long = $long\n" if $debug;
+	if ($long =~ s/^([^ ]+\.)([^ ]+) \2(\.[^ ]+\.[^ ]+)/$1$2$3/) {
+		# matches shiva.cs cs.berkeley.edu and returns shiva.cs.berkeley.edu
+		print "condensed fallback $host $domain_host -> $long\n" if $debug;
+		$fallback{$long} = 9;
+	}
+
+	local($fh);
+	$fh = $domain_host;
+	while ($fh =~ /\./) {
+		print "FALLBACK $host.$fh = 1\n" if $debug > 7;
+		$fallback{"$host.$fh"} = 1;
+		$fh =~ s/^[^\.]+\.//;
+	}
+
+	$fallback{"$host.$domain_host"} = 2;
+
+	($domain = $domain_host) =~ s/^[^\.]+//;
+	$fallback{"$host$domain"} = 6
+		if ($domain =~ /\./);
+
+	if ($host =~ /\./) {
+		#
+		# Host is already okay, but let's look for multiple
+		# interpretations
+		#
+		print "domainify($host,$domain_host) = $host\n" if $debug;
+		delete $fallback{$host};
+		$domainify_fallback{"$u *** $host"} = join(' ',sort {$fallback{$b} <=> $fallback{$a};} keys %fallback) if %fallback;
+		return $host;
+	}
+
+	$domain = ".$domain_host"
+		if ($domain !~ /\..*\./);
+	$newhost = "$host$domain";
+
+	$create_host_backtrack{"$u *** $newhost"} = $domain_host;
+	print "domainify($host,$domain_host) = $newhost\n" if $debug;
+	delete $fallback{$newhost};
+	$domainify_fallback{"$u *** $newhost"} = join(' ',sort {$fallback{$b} <=> $fallback{$a};} keys %fallback) if %fallback;
+	if ($debug) {
+		print "fallback = ";
+		print $domainify_fallback{"$u *** $newhost"} 
+			if defined($domainify_fallback{"$u *** $newhost"});
+		print "\n";
+	}
+	return $newhost;
+}
+# return the first non-empty element of an array
+sub firstname
+{
+	local(@names) = @_;
+	local($n);
+	while(@names) {
+		$n = shift(@names);
+		return $n if $n =~ /\S/;
+	}
+	return undef;
+}
+# queue up more addresses to expand
+sub expn
+{
+	local($host,$addr,$name,$level) = @_;
+	if ($host) {
+		$host = &trhost($host);
+
+		if (($debug > 3) || (defined $giveup{$host})) {
+			unshift(@hosts,$host) unless $users{$host};
+		} else {
+			push(@hosts,$host) unless $users{$host};
+		}
+		$users{$host} .= " $addr";
+		$names{"$addr *** $host"} = $name;
+		$level{"$addr *** $host"} = $level + 1;
+		print "expn($host,$addr,$name)\n" if $debug;
+		return "\t$addr\n";
+	} else {
+		return &final($addr,'NONE',$name);
+	}
+}
+# compute the numerical average value of an array
+sub average
+{
+	local(@e) = @_;
+	return 0 unless @e;
+	local($e,$sum);
+	for $e (@e) {
+		$sum += $e;
+	}
+	$sum / @e;
+}
+# print to the server (also to stdout, if -w)
+sub ps
+{
+	local($p) = @_;
+	print ">>> $p\n" if $watch;
+	print $S "$p\n";
+}
+# return case-adjusted name for a host (for comparison purposes)
+sub trhost 
+{
+	# treat foo.bar as an alias for Foo.BAR
+	local($host) = @_;
+	local($trhost) = $host;
+	$trhost =~ tr/A-Z/a-z/;
+	if ($trhost{$trhost}) {
+		$host = $trhost{$trhost};
+	} else {
+		$trhost{$trhost} = $host;
+	}
+	$trhost{$trhost};
+}
+# re-queue users if an mx record dictates a redirect
+# don't allow a user to be redirected more than once
+sub mxredirect
+{
+	local($server,*users) = @_;
+	local($u,$nserver,@still_there);
+
+	$nserver = &mx($server);
+
+	if (&trhost($nserver) ne &trhost($server)) {
+		$0 = "$av0 - mx redirect $server -> $nserver\n";
+		for $u (@users) {
+			if (defined $mxbacktrace{"$u *** $nserver"}) {
+				push(@still_there,$u);
+			} else {
+				$mxbacktrace{"$u *** $nserver"} = $server;
+				print "mxbacktrace{$u *** $nserver} = $server\n"
+					if ($debug > 1);
+				&expn($nserver,$u,$names{"$u *** $server"});
+			}
+		}
+		@users = @still_there;
+		if (! @users) {
+			return $nserver;
+		} else {
+			return undef;
+		}
+	}
+	return undef;
+}
+# follow mx records, return a hostname
+# also follow temporary redirections comming from &domainify and
+# &mxlookup
+sub mx
+{
+	local($h,$u) = @_;
+
+	for (;;) {
+		if (defined $mx{&trhost($h)} && $h ne $mx{&trhost($h)}) {
+			$0 = "$av0 - mx expand $h";
+			$h = $mx{&trhost($h)};
+			return $h;
+		}
+		if ($u) {
+			if (defined $temporary_redirect{"$u *** $h"}) {
+				$0 = "$av0 - internal redirect $h";
+				print "Temporary redirect taken $u *** $h -> " if $debug;
+				$h = $temporary_redirect{"$u *** $h"};
+				print "$h\n" if $debug;
+				next;
+			}
+			$htr = &trhost($h);
+			if (defined $temporary_redirect{"$u *** $htr"}) {
+				$0 = "$av0 - internal redirect $h";
+				print "temporary redirect taken $u *** $h -> " if $debug;
+				$h = $temporary_redirect{"$u *** $htr"};
+				print "$h\n" if $debug;
+				next;
+			}
+		}
+		return $h;
+	}
+}
+# look up mx records with the name server.
+# re-queue expansion requests if possible
+# optionally give up on this host.
+sub mxlookup 
+{
+	local($lastchance,$server,$giveup,*users) = @_;
+	local(*T);
+	local(*NSLOOKUP);
+	local($nh, $pref,$cpref);
+	local($o0) = $0;
+	local($nserver);
+	local($name,$aliases,$type,$len,$thataddr);
+	local(%fallback);
+
+	return 1 if &mxredirect($server,*users);
+
+	if ((defined $mx{$server}) || (! $have_nslookup)) {
+		return 0 unless $lastchance;
+		&giveup('mx domainify',$giveup);
+		return 0;
+	}
+
+	$0 = "$av0 - nslookup of $server";
+	open(T,">/tmp/expn$$") || die "open > /tmp/expn$$: $!\n";
+	print T "set querytype=MX\n";
+	print T "$server\n";
+	close(T);
+	$cpref = 1.0E12;
+	undef $nserver;
+	open(NSLOOKUP,"nslookup < /tmp/expn$$ 2>&1 |") || die "open nslookup: $!";
+	while(<NSLOOKUP>) {
+		print if ($debug > 2);
+		if (/mail exchanger = ([-A-Za-z_.0-9+]+)/) {
+			$nh = $1;
+			if (/preference = (\d+)/) {
+				$pref = $1;
+				if ($pref < $cpref) {
+					$nserver = $nh;
+					$cpref = $pref;
+				} elsif ($pref) {
+					$fallback{$pref} .= " $nh";
+				}
+			}
+		}
+		if (/Non-existent domain/) {
+			#
+			# These addresss are hosed.  Kaput!  Dead! 
+			# However, if we created the address in the
+			# first place then there is a chance of 
+			# salvation.
+			#
+			1 while(<NSLOOKUP>);	
+			close(NSLOOKUP);
+			return 0 unless $lastchance;
+			&giveup('domainify',"$server: Non-existent domain",undef,1);
+			return 0;	
+		}
+				
+	}
+	close(NSLOOKUP);
+	unlink("/tmp/expn$$");
+	unless ($nserver) {
+		$0 = "$o0 - finished mxlookup";
+		return 0 unless $lastchance;
+		&giveup('mx domainify',"$server: Could not resolve address");
+		return 0;
+	}
+
+	# provide fallbacks in case $nserver doesn't work out
+	if (defined $fallback{$cpref}) {
+		$mx_secondary{$server} = $fallback{$cpref};
+	}
+
+	$0 = "$av0 - gethostbyname($nserver)";
+	($name,$aliases,$type,$len,$thataddr) = gethostbyname($nserver);
+
+	unless ($thataddr) {
+		$0 = $o0;
+		return 0 unless $lastchance;
+		&giveup('mx domainify',"$nserver: could not resolve address");
+		return 0;
+	}
+	print "MX($server) = $nserver\n" if $debug;
+	print "$server -> $nserver\n" if $vw && !$debug;
+	$mx{&trhost($server)} = $nserver;
+	# redeploy the users
+	unless (&mxredirect($server,*users)) {
+		return 0 unless $lastchance;
+		&giveup('mx domainify',"$nserver: only one level of mx redirect allowed");
+		return 0;
+	}
+	$0 = "$o0 - finished mxlookup";
+	return 1;
+}
+# if mx expansion did not help to resolve an address
+# (ie: foo@bar became @baz:foo@bar, then undo the 
+# expansion).
+# this is only used by &final
+sub mxunroll
+{
+	local(*host,*addr) = @_;
+	local($r) = 0;
+	print "looking for mxbacktrace{$addr *** $host}\n"
+		if ($debug > 1);
+	while (defined $mxbacktrace{"$addr *** $host"}) {
+		print "Unrolling MX expnasion: \@$host:$addr -> " 
+			if ($debug || $verbose);
+		$host = $mxbacktrace{"$addr *** $host"};
+		print "\@$host:$addr\n" 
+			if ($debug || $verbose);
+		$r = 1;
+	}
+	return 1 if $r;
+	$addr = "\@$host:$addr"
+		if ($host =~ /\./);
+	return 0;
+}
+# register a completed expnasion.  Make the final address as 
+# simple as possible.
+sub final
+{
+	local($addr,$host,$name,$error) = @_;
+	local($he);
+	local($hb,$hr);
+	local($au,$ah);
+
+	if ($error =~ /Non-existent domain/) {
+		# 
+		# If we created the domain, then let's undo the
+		# damage...
+		#
+		if (defined $create_host_backtrack{"$addr *** $host"}) {
+			while (defined $create_host_backtrack{"$addr *** $host"}) {
+				print "Un&domainifying($host) = " if $debug;
+				$host = $create_host_backtrack{"$addr *** $host"};
+				print "$host\n" if $debug;
+			}
+			$error = "$host: could not locate";
+		} else {
+			# 
+			# If we only want valid addresses, toss out
+			# bad host names.
+			#
+			if ($valid) {
+				print STDERR "\@$host:$addr ($name) Non-existent domain\n";
+				return "";
+			}
+		}
+	}
+
+	MXUNWIND: {
+		$0 = "$av0 - final parsing of \@$host:$addr";
+		($he = $host) =~ s/(\W)/\\$1/g;
+		if ($addr !~ /@/) {
+			# addr does not contain any host
+			$addr = "$addr@$host";
+		} elsif ($addr !~ /$he/i) {
+			# if host part really something else, use the something
+			# else.
+			if ($addr =~ m/(.*)\@([^\@]+)$/) {
+				($au,$ah) = ($1,$2);
+				print "au = $au ah = $ah\n" if $debug;
+				if (defined $temporary_redirect{"$addr *** $ah"}) {
+					$addr = "$au\@".$temporary_redirect{"$addr *** $ah"};
+					print "Rewrite! to $addr\n" if $debug;
+					next MXUNWIND;
+				}
+			}
+			# addr does not contain full host
+			if ($valid) {
+				if ($host =~ /^([^\.]+)(\..+)$/) {
+					# host part has a . in it - foo.bar
+					($hb, $hr) = ($1, $2);
+					if ($addr =~ /\@([^\.\@]+)$/ && ($1 eq $hb)) {
+						# addr part has not . 
+						# and matches beginning of
+						# host part -- tack on a 
+						# domain name.
+						$addr .= $hr;
+					} else {
+						&mxunroll(*host,*addr) 
+							&& redo MXUNWIND;
+					}
+				} else {
+					&mxunroll(*host,*addr) 
+						&& redo MXUNWIND;
+				}
+			} else {
+				$addr = "${addr}[\@$host]"
+					if ($host =~ /\./);
+			}
+		}
+	}
+	$name = "$name " if $name;
+	$error = " $error" if $error;
+	if ($valid) {
+		push(@final,"$name<$addr>");
+	} else {
+		push(@final,"$name<$addr>$error");
+	}
+	"\t$name<$addr>$error\n";
+}
+
+sub alarm
+{
+	local($alarm_action,$alarm_redirect,$alarm_user) = @_;
+	alarm(3600);
+	$SIG{ALRM} = 'handle_alarm';
+}
+# this involves one great big ugly hack.
+# the "next HOST" unwinds the stack!
+sub handle_alarm
+{
+	&giveup($alarm_redirect,"Timed out during $alarm_action",$alarm_user);
+	next HOST;
+}
+
+# read the rest of the current smtp daemon's response (and toss it away)
+sub read_response
+{
+	local($done,$watch) = @_;
+	local(@resp);
+	print $s if $watch;
+	while(($done eq "-") && ($s = <$S>) && ($s =~ /^\d+([- ])/)) {
+		print $s if $watch;
+		$done = $1;
+		push(@resp,$s);
+	}
+	return @resp;
+}
+# print args if verbose.  Return them in any case
+sub verbose
+{
+	local(@tp) = @_;
+	print "@tp" if $verbose;
+}
+# to pass perl -w:
+@tp;
+$flag_a;
+$flag_d;
+$flag_1;
+%already_domainify_fellback;
+%already_mx_fellback;
+&handle_alarm;
+################### BEGIN PERL/TROFF TRANSITION 
+.00 ;	
+
+'di
+.nr nl 0-1
+.nr % 0
+.\\"'; __END__ 
+.\" ############## END PERL/TROFF TRANSITION
+.TH EXPN 1 "March 11, 1993"
+.AT 3
+.SH NAME
+expn \- recursively expand mail aliases
+.SH SYNOPSIS
+.B expn
+.RI [ -a ]
+.RI [ -v ]
+.RI [ -w ]
+.RI [ -d ]
+.RI [ -1 ]
+.IR user [@ hostname ]
+.RI [ user [@ hostname ]]...
+.SH DESCRIPTION
+.B expn
+will use the SMTP
+.B expn
+and 
+.B vrfy
+commands to expand mail aliases.  
+It will first look up the addresses you provide on the command line.
+If those expand into addresses on other systems, it will 
+connect to the other systems and expand again.  It will keep 
+doing this until no further expansion is possible.
+.SH OPTIONS
+The default output of 
+.B expn
+can contain many lines which are not valid
+email addresses.  With the 
+.I -aa
+flag, only expansions that result in legal addresses
+are used.  Since many mailing lists have an illegal
+address or two, the single
+.IR -a ,
+address, flag specifies that a few illegal addresses can
+be mixed into the results.   More 
+.I -a
+flags vary the ratio.  Read the source to track down
+the formula.  With the
+.I -a
+option, you should be able to construct a new mailing
+list out of an existing one.
+.LP
+If you wish to limit the number of levels deep that 
+.B expn
+will recurse as it traces addresses, use the
+.I -1
+option.  For each 
+.I -1
+another level will be traversed.  So, 
+.I -111
+will traverse no more than three levels deep.
+.LP
+The normal mode of operation for
+.B expn
+is to do all of its work silently.
+The following options make it more verbose.
+It is not necessary to make it verbose to see what it is
+doing because as it works, it changes its 
+.BR argv [0]
+variable to reflect its current activity.
+To see how it is expanding things, the 
+.IR -v ,
+verbose, flag will cause 
+.B expn 
+to show each address before
+and after translation as it works.
+The 
+.IR -w ,
+watch, flag will cause
+.B expn
+to show you its conversations with the mail daemons.
+Finally, the 
+.IR -d ,
+debug, flag will expose many of the inner workings so that
+it is possible to eliminate bugs.
+.SH ENVIRONMENT
+No enviroment variables are used.
+.SH FILES
+.PD 0
+.B /tmp/expn$$
+.B temporary file used as input to 
+.BR nslookup .
+.SH SEE ALSO
+.BR aliases (5), 
+.BR sendmail (8),
+.BR nslookup (8),
+RFC 823, and RFC 1123.
+.SH BUGS
+Not all mail daemons will implement 
+.B expn
+or
+.BR vrfy .
+It is not possible to verify addresses that are served
+by such daemons.
+.LP
+When attempting to connect to a system to verify an address,
+.B expn
+only tries one IP address.  Most mail daemons
+will try harder.
+.LP
+It is assumed that you are running domain names and that 
+the 
+.BR nslookup (8) 
+program is available.  If not, 
+.B expn
+will not be able to verify many addresses.  It will also pause
+for a long time unless you change the code where it says
+.I $have_nslookup = 1
+to read
+.I $have_nslookup = 
+.IR 0 .
+.LP
+Lastly, 
+.B expn
+does not handle every valid address.  If you have an example,
+please submit a bug report.
+.SH CREDITS
+In 1986 or so, Jon Broome wrote a program of the same name
+that did about the same thing.  It has since suffered bit rot
+and Jon Broome has dropped off the face of the earth!
+(Jon, if you are out there, drop me a line)
+.SH AVAILABILITY
+The latest version of 
+.B expn
+is available through anonymous ftp at
+.IR ftp://ftp.idiom.com/pub/muir-programs/expn .
+.SH AUTHOR
+.I David Muir Sharnoff\ \ \ \ <muir@idiom.com>
diff --git a/contrib/mail.local.linux b/contrib/mail.local.linux
new file mode 100644
index 0000000..42d2c3c
--- /dev/null
+++ b/contrib/mail.local.linux
@@ -0,0 +1,205 @@
+From: Karl London <karl@borg.demon.co.uk>
+Message-Id: <199308111712.SAA05454@borg.demon.co.uk>
+Subject: Final port of mail.local to Linux
+To: eric@cs.berkeley.edu
+Date: Wed, 11 Aug 1993 18:12:27 +0100 (BST)
+X-Mailer: ELM [version 2.4 PL21]
+MIME-Version: 1.0
+Content-Type: text/plain; charset=US-ASCII
+Content-Transfer-Encoding: 7bit
+Content-Length: 11415     
+
+Hi,
+  Sorry about this.. This is a final version of mail.local for
+linux..
+
+This is what I would like to see distributed with 8.6 if poss...
+
+Karl
+
+--------------
+
+begin 600 mail.local.linux.tar.Z
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+`
+end
diff --git a/contrib/mailprio b/contrib/mailprio
new file mode 100644
index 0000000..58feba7
--- /dev/null
+++ b/contrib/mailprio
@@ -0,0 +1,557 @@
+Received: from austin.bsdi.com (root{9l9gVDC7v8t3dlv0OtXTlby6X1zBWd56}@austin.BSDI.COM [205.230.224.49]) by knecht.Sendmail.ORG (8.8.2/8.8.2) with ESMTP id JAA05023 for <eric@sendmail.org>; Thu, 31 Oct 1996 09:29:47 -0800 (PST)
+Received: from austin.bsdi.com (localhost [127.0.0.1]) by austin.bsdi.com (8.7.4/8.7.3) with ESMTP id KAA19250; Thu, 31 Oct 1996 10:28:18 -0700 (MST)
+Message-Id: <199610311728.KAA19250@austin.bsdi.com>
+To: Eric Allman <eric@sendmail.org>
+cc: marc@xfree86.org
+Subject: Updated mailprio_0_93.shar
+From: Tony Sanders <sanders@earth.com>
+Organization: Berkeley Software Design, Inc.
+Date: Thu, 31 Oct 1996 10:28:14 -0700
+Sender: sanders@austin.bsdi.com
+
+Eric, please update contrib/mailprio in the sendmail distribution
+to this version at your convenience.  Thanks.
+
+I've also made this available in:
+	ftp://ftp.earth.com/pub/postmaster/
+
+mailprio_0_93.shar follows...
+
+#!/bin/sh
+# This is a shell archive (produced by GNU sharutils 4.1).
+# To extract the files from this archive, save it to some FILE, remove
+# everything before the `!/bin/sh' line above, then type `sh FILE'.
+#
+# Made on 1996-10-31 10:07 MST by <sanders@earth.com>.
+#
+# Existing files will *not* be overwritten unless `-c' is specified.
+#
+# This shar contains:
+# length mode       name
+# ------ ---------- ------------------------------------------
+#   8260 -rwxr-xr-x mailprio
+#   3402 -rw-r--r-- mailprio.README
+#   4182 -rwxr-xr-x mailprio_mkdb
+#
+touch -am 1231235999 $$.touch >/dev/null 2>&1
+if test ! -f 1231235999 && test -f $$.touch; then
+  shar_touch=touch
+else
+  shar_touch=:
+  echo
+  echo 'WARNING: not restoring timestamps.  Consider getting and'
+  echo "installing GNU \`touch', distributed in GNU File Utilities..."
+  echo
+fi
+rm -f 1231235999 $$.touch
+#
+# ============= mailprio ==============
+if test -f 'mailprio' && test X"$1" != X"-c"; then
+  echo 'x - skipping mailprio (file already exists)'
+else
+  echo 'x - extracting mailprio (text)'
+  sed 's/^X//' << 'SHAR_EOF' > 'mailprio' &&
+#!/usr/bin/perl
+#
+# mailprio,v 1.4 1996/10/31 17:03:52 sanders Exp
+# Version 0.93 -- Thu Oct 31 09:42:25 MST 1996
+#
+# mailprio -- setup mail priorities for a mailing list
+#
+# Copyright 1994, 1996, Tony Sanders <sanders@earth.com>
+# Rights are hereby granted to download, use, modify, sell, copy, and
+# redistribute this software so long as the original copyright notice
+# and this list of conditions remain intact and modified versions are
+# noted as such.
+#
+# I would also very much appreciate it if you could send me a copy of
+# any changes you make so I can possibly integrate them into my version.
+#
+# Options:
+#     -p priority_database      -- Specify database to use if not default
+#     -q                        -- Process sendmail V8.8.X queue format files
+#
+# Sort mailing lists or sendmail queue files by mailprio database.
+# Files listed on the command line are locked and then sorted in place, in
+# the absence of any file arguments it will read STDIN and write STDOUT.
+#
+# Examples:
+#     mailprio < mailing-list > sorted_list
+#     mailprio mailing-list1 mailing-list2 mailing-list3 ...
+#     mailprio -q /var/spool/mqueue/qf*
+# To double check results:
+#     sort sorted_list > checkit; sort orig-mailing-list | diff - checkit
+#
+# To get the maximum value from a transaction delay based priority
+# function you need to reorder the distribution list (and the mail
+# queue files for that matter) fairly often; you could even have
+# your mailing list software reorder the list before each outgoing
+# message.
+#
+$usage = "Usage: mailprio [-p priodb] [-q] [mailinglists ...]\n";
+$home = "/home/sanders/lists";
+$priodb = "$home/mailprio";
+$locking = "flock";     # "flock" or "fcntl"
+X
+# In shell, it would go more or less like this:
+#     old_mailprio > /tmp/a
+#     fgrep -f lists/inet-access /tmp/a | sed -e 's/^.......//' > /tmp/b
+#         ; /tmp/b contains list of known users, faster delivery first
+#     fgrep -v -f /tmp/b lists/inet-access > /tmp/c
+#         ; put all unknown stuff at the top of new list for now
+#     echo '# -----' >> /tmp/c
+#     cat /tmp/b >> /tmp/c
+X
+$qflag = 0;
+while ($main'ARGV[0] =~ /^-/) {
+X        $args = shift;
+X        if ($args =~ m/\?/) { print $usage; exit 0; }
+X        if ($args =~ m/q/) { $qflag = 1; }
+X        if ($args =~ m/p/) {
+X            $priodb = shift || die $usage, "-p requires argument\n"; }
+}
+X
+push(@main'ARGV, '-') if ($#ARGV < 0);
+while ($file = shift @ARGV) {
+X    if ($file eq "-") {
+X        $source = "main'STDIN";
+X        $sink = "main'STDOUT";
+X    } else {
+X        $sink = $source = "FH";
+X        open($source, "+< $file") || do { warn "$file: $!\n"; next; };
+X        if (!defined &seize($source, &LOCK_EX | &LOCK_NB)) {
+X            # couldn't get lock, just skip it
+X            close($source);
+X            next;
+X        }
+X    }
+X
+X    local(*list);
+X    &process($source, *list);
+X
+X    # setup to write output
+X    if ($file ne "-") {
+X	# zero the file (FH is hardcoded because truncate requires it, sigh)
+X        seek(FH, 0, 0) || die "$file: seek: $!\n";
+X        truncate(FH, 0) || die "$file: truncate: $!\n";
+X    }
+X
+X    # do the dirty work
+X    &output($sink, *list);
+X
+X    close($sink) || warn "$file: $!\n";         # close clears the lock
+X    close($source);
+}
+X
+sub process {
+X    # Setup %list and @list
+X    local($source, *list) = @_;
+X    local($addr, $canon);
+X    while ($addr = <$source>) {
+X        chop $addr;
+X        next if $addr =~ /^# ----- /;                   # that's our line
+X        push(@list, $addr), next if $addr =~ /^\s*#/;   # save comments
+X	if ($qflag) {
+X	    next if $addr =~ m/^\./;
+X	    push(@list, $addr), next if !($addr =~ s/^(R[^:]*:)//);
+X	    $Rflags = $1;
+X	}
+X        $canon = &canonicalize((&simplify_address($addr))[0]);
+X        unless (defined $canon) {
+X            warn "$file: no address found: $addr\n";
+X            push(@list, ($qflag?$Rflags:'') . $addr);       # save it as is
+X            next;
+X        }
+X        if (defined $list{$canon}) {
+X            warn "$file: duplicate: ``$addr -> $canon''\n";
+X            push(@list, ($qflag?$Rflags:'') . $addr);       # save it as is
+X            next;
+X        }
+X        $list{$canon} = $addr;
+X    }
+}
+X
+sub output {
+X    local($sink, *list) = @_;
+X
+X    local($to, *prio, *userprio, *useracct);
+X    dbmopen(%prio, $priodb, 0644) || die "$priodb: $!\n";
+X    foreach $to (keys %list) {
+X        if (defined $prio{$to}) {
+X            # add to list of found users (%userprio) and remove from %list
+X            # so that we know what users were not yet prioritized
+X            $userprio{$to} = $prio{$to};        # priority
+X            $useracct{$to} = $list{$to};        # string
+X            delete $list{$to};
+X        }
+X    }
+X    dbmclose(%prio);
+X
+X    # Put all the junk we found at the very top
+X    # (this might not always be a feature)
+X    print $sink join("\n", @list), "\n" if int(@list);
+X
+X    # prioritized list of users
+X    if (int(keys %userprio)) {
+X        print $sink '# ----- prioritized users', "\n" unless $qflag;
+X        foreach $to (sort by_userprio keys %userprio) {
+X            die "Opps! Something is seriously wrong with useracct: $to\n"
+X                unless defined $useracct{$to};
+X	    print $sink 'RFD:' if $qflag;
+X            print $sink $useracct{$to}, "\n";
+X        }
+X    }
+X
+X    # unprioritized users go last, fast accounts will get moved up eventually
+X    # XXX: should go before the "really slow" prioritized users?
+X    if (int(keys %list)) {
+X        print $sink '# ----- unprioritized users', "\n" unless $qflag;
+X        foreach $to (keys %list) {
+X            print $sink 'RFD:' if $qflag;
+X            print $sink $list{$to}, "\n";
+X        }
+X    }
+X
+X    print $sink ".\n" if $qflag;
+}
+X
+sub by_userprio {
+X    # sort first by priority, then by key.
+X    $userprio{$a} <=> $userprio{$b} || $a cmp $b;
+}
+X
+# REPL-LIB ---------------------------------------------------------------
+X
+sub canonicalize {
+X    local($addr) = @_;
+X    # lowercase, strip leading/trailing whitespace
+X    $addr =~ y/A-Z/a-z/; $addr =~ s/^\s+//; $addr =~ s/\s+$//; $addr;
+}
+X
+# @addrs = simplify_address($addr);
+sub simplify_address {
+X    local($_) = shift;
+X    1 while s/\([^\(\)]*\)//g;          # strip comments
+X    1 while s/"[^"]*"//g;               # strip comments
+X    split(/,/);                         # split into parts
+X    foreach (@_) {
+X        1 while s/.*<(.*)>.*/\1/;
+X        s/^\s+//;
+X        s/\s+$//;
+X    }
+X    @_;
+}
+X
+### ---- ###
+#
+# Error codes
+#
+do 'errno.ph';
+eval 'sub ENOENT {2;}'          unless defined &ENOENT;
+eval 'sub EINTR {4;}'           unless defined &EINTR;
+eval 'sub EINVAL {22;}'         unless defined &EINVAL;
+X
+#
+# File locking
+#
+do 'sys/unistd.ph';
+eval 'sub SEEK_SET {0;}'        unless defined &SEEK_SET;
+X
+do 'sys/file.ph';
+eval 'sub LOCK_SH {0x01;}'      unless defined &LOCK_SH;
+eval 'sub LOCK_EX {0x02;}'      unless defined &LOCK_EX;
+eval 'sub LOCK_NB {0x04;}'      unless defined &LOCK_NB;
+eval 'sub LOCK_UN {0x08;}'      unless defined &LOCK_UN;
+X
+do 'fcntl.ph';
+eval 'sub F_GETFD {1;}'         unless defined &F_GETFD;
+eval 'sub F_SETFD {2;}'         unless defined &F_SETFD;
+eval 'sub F_GETFL {3;}'         unless defined &F_GETFL;
+eval 'sub F_SETFL {4;}'         unless defined &F_SETFL;
+eval 'sub O_NONBLOCK {0x0004;}' unless defined &O_NONBLOCK;
+eval 'sub F_SETLK {8;}'         unless defined &F_SETLK;        # nonblocking
+eval 'sub F_SETLKW {9;}'        unless defined &F_SETLKW;       # lockwait
+eval 'sub F_RDLCK {1;}'         unless defined &F_RDLCK;
+eval 'sub F_UNLCK {2;}'         unless defined &F_UNLCK;
+eval 'sub F_WRLCK {3;}'         unless defined &F_WRLCK;
+$s_flock = "sslll";             # struct flock {type, whence, start, len, pid}
+X
+# return undef on failure
+sub seize {
+X    local ($FH, $lock) = @_;
+X    local ($ret);
+X    if ($locking eq "flock") {
+X        $ret = flock($FH, $lock);
+X	return ($ret == 0 ? undef : 1);
+X    } else {
+X        local ($flock, $type) = 0;
+X        if ($lock & &LOCK_SH) { $type = &F_RDLCK; }
+X        elsif ($lock & &LOCK_EX) { $type = &F_WRLCK; }
+X        elsif ($lock & &LOCK_UN) { $type = &F_UNLCK; }
+X        else { $! = &EINVAL; return undef; }
+X        $flock = pack($s_flock, $type, &SEEK_SET, 0, 0, 0);
+X        $ret = fcntl($FH, ($lock & &LOCK_NB) ? &F_SETLK : &F_SETLKW, $flock);
+X	return ($ret == -1 ? undef : 1);
+X    }
+}
+SHAR_EOF
+  $shar_touch -am 1031100396 'mailprio' &&
+  chmod 0755 'mailprio' ||
+  echo 'restore of mailprio failed'
+  shar_count="`wc -c < 'mailprio'`"
+  test 8260 -eq "$shar_count" ||
+    echo "mailprio: original size 8260, current size $shar_count"
+fi
+# ============= mailprio.README ==============
+if test -f 'mailprio.README' && test X"$1" != X"-c"; then
+  echo 'x - skipping mailprio.README (file already exists)'
+else
+  echo 'x - extracting mailprio.README (text)'
+  sed 's/^X//' << 'SHAR_EOF' > 'mailprio.README' &&
+mailprio README
+X
+mailprio.README,v 1.2 1996/10/31 17:03:54 sanders Exp
+Version 0.93 -- Thu Oct 31 09:42:25 MST 1996
+X
+Copyright 1994, 1996, Tony Sanders <sanders@earth.com>
+Rights are hereby granted to download, use, modify, sell, copy, and
+redistribute this software so long as the original copyright notice
+and this list of conditions remain intact and modified versions are
+noted as such.
+X
+I would also very much appreciate it if you could send me a copy of
+any changes you make so I can possibly integrate them into my version.
+X
+The current version of this and other related mail tools are available in:
+X	ftp://ftp.earth.com/pub/postmaster/
+X
+Even with the new persistent host status in sendmail V8.8.X this
+function can still reduce the lag time distributing mail to a large
+group of people.  It also makes it a little more likely that everyone
+will get mailing list mail in the order sent which can help reduce
+duplicate postings.  Basically, the goal is to put slow hosts at
+the bottom of the list so that as many fast hosts are delivered
+as quickly as possible.
+X
+CONTENTS
+========
+X
+X    mailprio.README		-- simple docs
+X    mailprio			-- the address sorter
+X    mailprio_mkdb		-- builds the database for the sorter
+X
+X
+CHANGES
+=======
+X    Version 0.92
+X	Initial public release.
+X
+X    Version 0.93
+X	Updated to make use of the (somewhat) new xdelay statistic.
+X	Changed -q flag to support new sendmail queue file format (RFD:<addr>).
+X	Fixed argument parsing bug.
+X	Fixed bug with database getting "garbage" in it.
+X
+X
+CONFIGURATION
+=============
+X
+X    You need to edit each script and ensure proper configuration.
+X
+X    In mailprio check:        #!perl path, $home, $priodb, $locking
+X
+X    In mailprio_mkdb check:   #!perl path, $home, $priodb, $maillog
+X
+X
+USAGE: mailprio
+===============
+X
+X    Usage: mailprio [-p priodb] [-q] [mailinglists ...]
+X	-p priority_database   -- Specify database to use if not default
+X	-q                     -- Process sendmail queue format files
+X				  [USE WITH CAUTION]
+X
+X    Sort mailing lists or sendmail V8 queue files by mailprio database.
+X    Files listed on the command line are locked and then sorted in place, in
+X    the absence of any file arguments it will read STDIN and write STDOUT.
+X
+X    Examples:
+X	mailprio < mailing-list > sorted_list
+X	mailprio mailing-list1 mailing-list2 mailing-list3 ...
+X	mailprio -q /var/spool/mqueue/qf*	[not recommended]
+X    To double check results:
+X	sort sorted_list > checkit; sort orig-mailing-list | diff - checkit
+X
+X    NOTE:
+X	To get the maximum value from a transaction delay based priority
+X	function you need to reorder the distribution list (and the mail
+X	queue files for that matter) fairly often; you could even have
+X	your mailing list software reorder the list before each outgoing
+X	message.
+X
+X
+USAGE: mailprio_mkdb
+====================
+X
+X    Usage: mailprio_mkdb [-l maillog] [-p priodb]
+X	-l maillog             -- Specify maillog to process if not default
+X	-p priority_database   -- Specify database to use if not default
+X
+X    Builds the mail priority database using information from the maillog.
+X
+X    Run at least nightly before you rotate the maillog.  If you are
+X    going to run mailprio more often than that then you will need to
+X    load the current maillog information before that will do any good
+X    (and to keep from reloading the same information you will need
+X    some kind of incremental maillog information to load from).
+SHAR_EOF
+  $shar_touch -am 1031100396 'mailprio.README' &&
+  chmod 0644 'mailprio.README' ||
+  echo 'restore of mailprio.README failed'
+  shar_count="`wc -c < 'mailprio.README'`"
+  test 3402 -eq "$shar_count" ||
+    echo "mailprio.README: original size 3402, current size $shar_count"
+fi
+# ============= mailprio_mkdb ==============
+if test -f 'mailprio_mkdb' && test X"$1" != X"-c"; then
+  echo 'x - skipping mailprio_mkdb (file already exists)'
+else
+  echo 'x - extracting mailprio_mkdb (text)'
+  sed 's/^X//' << 'SHAR_EOF' > 'mailprio_mkdb' &&
+#!/usr/bin/perl
+#
+# mailprio_mkdb,v 1.5 1996/10/31 17:03:53 sanders Exp
+# Version 0.93 -- Thu Oct 31 09:42:25 MST 1996
+#
+# mailprio_mkdb -- make mail priority database based on delay times
+#
+# Copyright 1994, 1996, Tony Sanders <sanders@earth.com>
+# Rights are hereby granted to download, use, modify, sell, copy, and
+# redistribute this software so long as the original copyright notice 
+# and this list of conditions remain intact and modified versions are
+# noted as such.
+#
+# I would also very much appreciate it if you could send me a copy of
+# any changes you make so I can possibly integrate them into my version.
+#
+# The average function moves the value around quite rapidly (half-steps)
+# which may or may not be a feature.  This version uses the new xdelay
+# statistic (new as of sendmail V8) which is per transaction.  We also
+# weight the result based on the overall delay.
+#
+# Something that might be worth doing for systems that don't support
+# xdelay would be to compute an approximation of the transaction delay
+# by sorting by messages-id and delay then computing the difference
+# between adjacent delay values.
+#
+# To get the maximum value from a transaction delay based priority
+# function you need to reorder the distribution list (and the mail
+# queue files for that matter) fairly often; you could even have
+# your mailing list software reorder the list before each outgoing
+# message.
+X
+$usage = "Usage: mailprio_mkdb [-l maillog] [-p priodb]\n";
+$home = "/home/sanders/lists";
+$maillog = "/var/log/maillog";
+$priodb = "$home/mailprio";
+X
+while ($ARGV[0] =~ /^-/) {
+X	$args = shift;
+X	if ($args =~ m/\?/) { print $usage; exit 0; }
+X	if ($args =~ m/l/) {
+X	    $maillog = shift || die $usage, "-l requires argument\n"; }
+X	if ($args =~ m/p/) {
+X	    $priodb = shift || die $usage, "-p requires argument\n"; }
+}
+X
+$SIG{'PIPE'} = 'handle_pipe';
+X
+# will merge with existing information
+dbmopen(%prio, $priodb, 0644) || die "$priodb: $!\n";
+&getlog_stats($maillog, *prio);
+dbmclose(%prio);
+exit(0);
+X
+sub handle_pipe {
+X    dbmclose(%prio);
+}
+X
+sub getlog_stats {
+X    local($maillog, *stats) = @_;
+X    local($to, $delay);
+X    local($h, $m, $s);
+X    open(MAILLOG, "< $maillog") || die "$maillog: $!\n";
+X    while (<MAILLOG>) {
+X	next unless / to=/ && / stat=/;
+X	next if / stat=queued/;
+X	if (/ stat=sent/i) {
+X	    # read delay and xdelay and convert to seconds
+X	    ($delay) = (m/ delay=([^,]*),/);
+X	    next unless $delay;
+X	    ($h, $m, $s) = split(/:/, $delay);
+X	    $delay = ($h * 60 * 60) + ($m * 60) + $s;
+X
+X	    ($xdelay) = (m/ xdelay=([^,]*),/);
+X	    next unless $xdelay;
+X	    ($h, $m, $s) = split(/:/, $xdelay);
+X	    $xdelay = ($h * 60 * 60) + ($m * 60) + $s;
+X
+X	    # Now weight the delay factor by the transaction delay (xdelay).
+X	    $xdelay /= 300;			# [0 - 1(@5 min)]
+X	    $xdelay += 0.5;			# [0.5 - 1.5]
+X	    $xdelay = 1.5 if $xdelay > 1.5;	# clamp
+X	    $delay *= $xdelay;			# weight delay by xdelay
+X	}
+X	elsif (/, stat=/) {
+X	    # delivery failure of some sort (i.e. bad)
+X	    $delay = 432000;		# force 5 days
+X	}
+X	$delay = 1000000 if $delay > 1000000;
+X
+X	# filter the address(es); isn't perfect but is "good enough"
+X	$to = $_; $to =~ s/^.* to=//;
+X	1 while $to =~ s/\([^\(\)]*\)//g;	# strip comments
+X	1 while $to =~ s/"[^"]*"//g;		# strip comments
+X	$to =~ s/, .*//;			# remove other stat info
+X	foreach $addr (&simplify_address($to)) {
+X	    next unless $addr;
+X	    $addr = &canonicalize($addr);
+X	    $stats{$addr} = $delay unless defined $stats{$addr};	# init
+X	    # pseudo-average in the new delay (half-steps)
+X	    # simple, moving average
+X	    $stats{$addr} = int(($stats{$addr} + $delay) / 2);
+X	}
+X    }
+X    close(MAILLOG);
+}
+X
+# REPL-LIB ---------------------------------------------------------------
+X
+sub canonicalize {
+X    local($addr) = @_;
+X    # lowercase, strip leading/trailing whitespace
+X    $addr =~ y/A-Z/a-z/; $addr =~ s/^\s+//; $addr =~ s/\s+$//; $addr;
+}
+X
+# @addrs = simplify_address($addr);
+sub simplify_address {
+X    local($_) = shift;
+X    1 while s/\([^\(\)]*\)//g; 		# strip comments
+X    1 while s/"[^"]*"//g;		# strip comments
+X    split(/,/);				# split into parts
+X    foreach (@_) {
+X	1 while s/.*<(.*)>.*/\1/;
+X	s/^\s+//;
+X	s/\s+$//;
+X    }
+X    @_;
+}
+SHAR_EOF
+  $shar_touch -am 1031100396 'mailprio_mkdb' &&
+  chmod 0755 'mailprio_mkdb' ||
+  echo 'restore of mailprio_mkdb failed'
+  shar_count="`wc -c < 'mailprio_mkdb'`"
+  test 4182 -eq "$shar_count" ||
+    echo "mailprio_mkdb: original size 4182, current size $shar_count"
+fi
+exit 0
diff --git a/contrib/mh.patch b/contrib/mh.patch
new file mode 100644
index 0000000..7b23a5b
--- /dev/null
+++ b/contrib/mh.patch
@@ -0,0 +1,193 @@
+Message-Id: <199309031900.OAA19417@ignatz.acs.depaul.edu>
+To: bug-mh@ics.uci.edu
+cc: mh-users@ics.uci.edu, eric@cs.berkeley.edu
+Subject: MH-6.8.1/Sendmail 8.X (MH patch) updated
+Date: Fri, 03 Sep 1993 14:00:46 -0500
+From: Dave Nelson <dcn@ignatz.acs.depaul.edu>
+
+
+	This patch will fix the "X-auth..." warnings from the newer
+Sendmails (8.X) while continuing to work with the old sendmails.
+
+	I think the following patch will make everyone happy.
+
+	1)  Anybody with MH-6.8.1 can install this.  It doesn't matter
+	    what version of sendmail you're running.  It doesn't matter
+	    if you're not running sendmail (but it won't fix anything
+	    for you).
+
+	2)  No configuration file hacks. If the -client switch is
+	    absent (the default), the new sendmails will get an EHLO 
+	    using what LocalName() returns as the hostname.  On my systems, 
+	    this returns the FQDN.  If the EHLO fails with a result between 
+	    500 and 599  and the -client switch is not set, we give up on 
+	    sending EHLO/HELO and just go deliver the mail.
+
+	3)  No new configuration options.
+
+	4)  Retains the undocumented -client switch.  One warning:  it
+	    is possible using the -client switch to cause the old sendmails
+	    to return "I refuse to talk to myself".  You could do this under
+	    the old code as well.  This will happen if you claim to be the
+	    same system as the sendmail you're sending to is running on.  
+	    That's pointless, but possible.  If you do this, just like under
+	    the old code, you will get an error.
+
+	5)  If you're running a site with both old and new sendmails, you only
+	    have to build MH once.  The code's the same; works with them
+	    both.
+
+	If you decide to install this, make sure that you look the patch
+over and that you agree with what it is doing.  It works for me, but I
+can't test it on every possible combination.  Make sure that it works
+before you really install it for your users, if any.  No promises.
+
+	To install this, save this to a file in the mts/sendmail directory.
+Feed it to patch.  Patch will ignore the non-patch stuff.  You should have
+"mts sendmail/smtp" in your configuration file.  This works with old and
+new sendmails.  Using "mts sendmail"  will cause the new sendmails to
+print an "X-auth..." warning about who owns the process piping the mail 
+message.  I don't know of anyway of getting rid of these.
+
+	mh-config (if necessary), make, make inst-all.
+
+
+I hope this helps people.
+	
+/dcn
+
+Dave Nelson
+Academic Computer Services
+DePaul University, Chicago
+
+*** smail.c	Fri Sep  3 11:58:05 1993
+--- smail.c	Fri Sep  3 11:57:27 1993
+***************
+*** 239,261 ****
+  		    return RP_RPLY;
+  	    }
+  
+! 	    if (client && *client) {
+! 		doingEHLO = 1;
+! 		result = smtalk (SM_HELO, "EHLO %s", client);
+! 		doingEHLO = 0;
+  
+! 		if (500 <= result && result <= 599)
+  		    result = smtalk (SM_HELO, "HELO %s", client);
+! 
+! 		switch (result) {
+  		    case 250:
+! 		        break;
+  
+  		    default:
+  			(void) sm_end (NOTOK);
+  			return RP_RPLY;
+  		}
+  	    }
+  
+  #ifndef	ZMAILER
+  	    if (onex)
+--- 239,276 ----
+  		    return RP_RPLY;
+  	    }
+  
+! 	    doingEHLO = 1;
+! 	    result = smtalk (SM_HELO, "EHLO %s", 
+! 			     (client && *client) ? client : LocalName());
+! 	    doingEHLO = 0;
+! 
+! 	    switch (result)
+! 	    {
+! 	    case 250:
+! 		break;
+  
+! 	    default:
+! 		if (!(500 <= result && result <= 599))
+! 		{
+! 		    (void) sm_end (NOTOK);
+! 		    return RP_RPLY;
+! 		}
+! 		
+! 		if (client && *client)
+! 		{
+  		    result = smtalk (SM_HELO, "HELO %s", client);
+! 		    switch (result)
+! 		    {
+  		    case 250:
+! 			break;
+  
+  		    default:
+  			(void) sm_end (NOTOK);
+  			return RP_RPLY;
++ 		    }
+  		}
+  	    }
++ 	    
+  
+  #ifndef	ZMAILER
+  	    if (onex)
+***************
+*** 357,380 ****
+  	    return RP_RPLY;
+      }
+  
+!     if (client && *client) {
+! 	doingEHLO = 1;
+! 	result = smtalk (SM_HELO, "EHLO %s", client);
+! 	doingEHLO = 0;
+  
+! 	if (500 <= result && result <= 599)
+  	    result = smtalk (SM_HELO, "HELO %s", client);
+! 
+! 	switch (result) {
+! 	    case 250: 
+  		break;
+  
+! 	    default: 
+  		(void) sm_end (NOTOK);
+  		return RP_RPLY;
+  	}
+      }
+! 
+  send_options: ;
+      if (watch && EHLOset ("XVRB"))
+  	(void) smtalk (SM_HELO, "VERB on");
+--- 372,409 ----
+  	    return RP_RPLY;
+      }
+  
+!     doingEHLO = 1;
+!     result = smtalk (SM_HELO, "EHLO %s", 
+! 		     (client && *client) ? client : LocalName());
+!     doingEHLO = 0;
+! 
+!     switch (result)
+!     {
+!     case 250:
+! 	break;
+! 
+!     default:
+! 	if (!(500 <= result && result <= 599))
+! 	{
+! 	    (void) sm_end (NOTOK);
+! 	    return RP_RPLY;
+! 	}
+  
+! 	if (client && *client)
+! 	{
+  	    result = smtalk (SM_HELO, "HELO %s", client);
+! 	    switch (result)
+! 	    {
+! 	    case 250:
+  		break;
+  
+! 	    default:
+  		(void) sm_end (NOTOK);
+  		return RP_RPLY;
++ 	    }
+  	}
+      }
+!     
+  send_options: ;
+      if (watch && EHLOset ("XVRB"))
+  	(void) smtalk (SM_HELO, "VERB on");
diff --git a/contrib/mmuegel b/contrib/mmuegel
new file mode 100644
index 0000000..6db4a45
--- /dev/null
+++ b/contrib/mmuegel
@@ -0,0 +1,2079 @@
+From: "Michael S. Muegel" <mmuegel@cssun6.corp.mot.com>
+Message-Id: <199307280818.AA08111@cssun6.corp.mot.com>
+Subject: Re: contributed software
+To: eric@cs.berkeley.edu (Eric Allman)
+Date: Wed, 28 Jul 1993 03:18:02 -0500 (CDT)
+In-Reply-To: <199307221853.LAA04266@mastodon.CS.Berkeley.EDU> from "Eric Allman" at Jul 22, 93 11:53:47 am
+X-Mailer: ELM [version 2.4 PL22]
+Mime-Version: 1.0
+Content-Type: text/plain; charset=US-ASCII
+Content-Transfer-Encoding: 7bit
+Content-Length: 69132     
+
+OK. Here is a new shell archive.
+
+Cheers,
+-Mike
+
+---- Cut Here and feed the following to sh ----
+#!/bin/sh
+# This is a shell archive (produced by shar 3.49)
+# To extract the files from this archive, save it to a file, remove
+# everything above the "!/bin/sh" line above, and type "sh file_name".
+#
+# made 07/28/1993 08:13 UTC by mmuegel@mot.com (Michael S. Muegel)
+# Source directory /home/ustart/NeXT/src/mail-tools/dist/foo
+#
+# existing files will NOT be overwritten unless -c is specified
+#
+# This shar contains:
+# length  mode       name
+# ------ ---------- ------------------------------------------
+#   4308 -r--r--r-- README
+#  12339 -r--r--r-- libs/date.pl
+#   3198 -r--r--r-- libs/elapsed.pl
+#   4356 -r--r--r-- libs/mail.pl
+#   6908 -r--r--r-- libs/mqueue.pl
+#   7024 -r--r--r-- libs/newgetopts.pl
+#   4687 -r--r--r-- libs/strings1.pl
+#   1609 -r--r--r-- libs/timespec.pl
+#   5212 -r--r--r-- man/cqueue.1
+#   2078 -r--r--r-- man/postclip.1
+#   6647 -r-xr-xr-x src/cqueue
+#   1836 -r-xr-xr-x src/postclip
+#
+# ============= README ==============
+if test -f 'README' -a X"$1" != X"-c"; then
+	echo 'x - skipping README (File already exists)'
+else
+echo 'x - extracting README (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'README' &&
+-------------------------------------------------------------------------------
+Document Revision Control Information:
+X   mmuegel
+X   /usr/local/ustart/src/mail-tools/dist/foo/README,v
+X   1.1 of 1993/07/28 08:12:53
+-------------------------------------------------------------------------------
+X
+1. Introduction
+---------------
+X
+These tools may be of use to those sites using sendmail. Both are written in
+Perl. Our site, Mot.COM, receives a ton of mail being a top-level domain
+gateway. We have over 24 domains under us. Needless to say, we must have
+a robust mail system or my head, and others, would be on the chopping block.
+X
+2. Description
+--------------
+X
+The first tool, cqueue, checks the sendmail queue for problems. We use
+it to flag problems with subdomain mail servers (and even our own servers
+once in a while ;-). We run it via a cron job every hour during the day.
+You may find this too frequent, however. 
+X
+The other program, postclip, is used to "filter" non-deliverable NDNs that
+get sent to our Postmaster account now and then. This ensures privacy of
+e-mail and helps avoid disk problems from huge NDNs. It is different than
+a brute force "just keep the header" approach because it tries hard to keep
+other parts of the message that look like non-delivery information.
+X
+Both have been used for some time at our site with no problems. Everything 
+you need should be in this distribution: source, manual pages, and support 
+libs. See the manual pages for a complete description of each tool.
+X
+3. Installation
+---------------
+X
+No fancy Makefile simply because these tools are all under a large
+hierarchy at my site. Installation should be a snap, however. Install
+the nroff(1) man(5) manual pages from the man subdirectory to the
+appropriate directory on your system. This might be something like
+/usr/local/man/man1.
+X
+Next, install all of the Perl libraries located in the lib subdirectory
+to your Perl library area. /usr/local/lib/perl is a good bet. The person
+who installed Perl at your site will be able to tell you for sure. 
+X
+Finally, you need to install the programs. Note that cqueue wants to
+run setuid root by default. This is because the sendmail queue is normally
+only readable by root or some special group. In order to let any user
+run this suidperl is used. suidperl allows a Perl program to run with the
+privileges of another user. 
+X
+You will have to edit both the cqueue and postclip programs to change
+the #! line at the top of each. Just change the pathname to whatever is
+appropriate on your system. Note that Larry Wall's fixin program from
+the Camel book can also be used to do this. It is very handy. It changes
+#! lines by looking at your PATH.
+X
+If you do not have suidperl on your system change the #! line in cqueue
+to reference perl instead of suidperl.
+X
+You may also wish to change some constants in cqueue. $DEF_QUEUE should be
+changed to your queue directory if it is not /usr/spool/mqueue. $DEF_TIME
+could be changed easy enough also. It is the time spec for the time duration
+after which a mail message will be reported on if the -a option has not been
+specified. See the manual page for more information and the format of this
+constant (same as the -t argument). Then again, neither of these has to
+be changed. Command line options are there to override their default
+values.
+X
+After you have edited the programs as necessary, all that remains is to
+install them to some executable directory. Install postclip mode 555
+and cqueue mode 4555 with owner root (if using suidperl) or mode 555
+(if not using suidperl).
+X
+4. Gripes, Comments, Etc
+------------------------
+X
+If you start using either of these let me know. I have other mail tools I
+will likely post in the future if these prove useful. Also, if you think
+something is just plain dumb/wrong/stupid let me know!
+X
+Cheers,
+-Mike
+X
+--
++----------------------------------------------------------------------------+
+| Michael S. Muegel                    | Internet E-Mail:    mmuegel@mot.com |
+| UNIX Applications Startup Group      | Moto Dist E-Mail:   X10090          |
+| Corporate Information Office         | Voice:              (708) 576-0507  |
+| Motorola                             | Fax:                (708) 576-4153  |
++----------------------------------------------------------------------------+
+SHAR_EOF
+chmod 0444 README ||
+echo 'restore of README failed'
+Wc_c="`wc -c < 'README'`"
+test 4308 -eq "$Wc_c" ||
+	echo 'README: original size 4308, current size' "$Wc_c"
+fi
+# ============= libs/date.pl ==============
+if test ! -d 'libs'; then
+    echo 'x - creating directory libs'
+    mkdir 'libs'
+fi
+if test -f 'libs/date.pl' -a X"$1" != X"-c"; then
+	echo 'x - skipping libs/date.pl (File already exists)'
+else
+echo 'x - extracting libs/date.pl (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'libs/date.pl' &&
+;#
+;# Name
+;#	date.pl - Perl emulation of (the output side of) date(1)
+;#
+;# Synopsis
+;#	require "date.pl";
+;#	$Date = &date(time);
+;#	$Date = &date(time, $format);
+;#
+;# Description
+;#	This package implements the output formatting functions of date(1) in
+;#	Perl.  The format options are based on those supported by Ultrix 4.0
+;#	plus a couple of additions from SunOS 4.1.1 and elsewhere:
+;#
+;#		%a		abbreviated weekday name - Sun to Sat
+;#		%A		full weekday name - Sunday to Saturday
+;#		%b		abbreviated month name - Jan to Dec
+;#		%B		full month name - January to December
+;#		%c		date and time in local format [+]
+;#		%C		date and time in long local format [+]
+;#		%d		day of month - 01 to 31
+;#		%D		date as mm/dd/yy
+;#		%e		day of month (space padded) - ` 1' to `31'
+;#		%E		day of month (with suffix: 1st, 2nd, 3rd...)
+;#		%f		month of year (space padded) - ` 1' to `12'
+;#		%h		abbreviated month name - Jan to Dec
+;#		%H		hour - 00 to 23
+;#		%i		hour (space padded) - ` 1' to `12'
+;#		%I		hour - 01 to 12
+;#		%j		day of the year (Julian date) - 001 to 366
+;#		%k		hour (space padded) - ` 0' to `23'
+;#		%l		date in ls(1) format
+;#		%m		month of year - 01 to 12
+;#		%M		minute - 00 to 59
+;#		%n		insert a newline character
+;#		%p		ante-meridiem or post-meridiem indicator (AM or PM)
+;#		%r		time in AM/PM notation
+;#		%R		time as HH:MM
+;#		%S		second - 00 to 59
+;#		%t		insert a tab character
+;#		%T		time as HH:MM:SS
+;#		%u		date/time in date(1) required format
+;#		%U		week number, Sunday as first day of week - 00 to 53
+;#		%V		date-time in SysV touch format (mmddHHMMyy)
+;#		%w		day of week - 0 (Sunday) to 6
+;#		%W		week number, Monday as first day of week - 00 to 53
+;#		%x		date in local format [+]
+;#		%X		time in local format [+]
+;#		%y		last 2 digits of year - 00 to 99
+;#		%Y		all 4 digits of year ~ 1700 to 2000 odd ?
+;#		%z		time zone from TZ environment variable w/ a trailing space
+;#		%Z		time zone from TZ environment variable
+;#		%%		insert a `%' character
+;#		%+		insert a `+' character
+;#
+;#	[+]:  These may need adjustment to fit local conventions, see below.
+;#
+;#	For the sake of compatibility, a leading `+' in the format
+;#	specificaiton is removed if present.
+;#
+;# Remarks
+;#	This is version 3.4 of date.pl
+;#
+;#	An extension of `ctime.pl' by Waldemar Kebsch (kebsch.pad@nixpbe.UUCP),
+;#	as modified by Marion Hakanson (hakanson@ogicse.ogi.edu).
+;#
+;#  Unlike date(1), unknown format tags are silently replaced by "".
+;#
+;#  defaultTZ is a blatant hack, but I wanted to be able to get date(1)
+;#	like behaviour by default and there does'nt seem to be an easy (read
+;#	portable) way to get the local TZ name back...
+;#
+;#	For a cheap date, try...
+;#
+;#		#!/usr/local/bin/perl
+;#		require "date.pl";
+;#		exit print (&date(time, shift @ARGV) . "\n") ? 0 : 1;
+;#
+;#	This package is redistributable under the same terms as apply to
+;#	the Perl 4.0 release.  See the COPYING file in your Perl kit for
+;#	more information.
+;#
+;#	Please send any bug reports or comments to tmcgonigal@gallium.com
+;#
+;# Modification History
+;#	Nmemonic	Version	Date		Who
+;#
+;#	NONE		1.0		02feb91		Terry McGonigal (tmcgonigal@gallium.com)
+;#		Created from ctime.pl
+;#
+;#	NONE		2.0		07feb91		tmcgonigal
+;#		Added some of Marion Hakanson (hakanson@ogicse.ogi.edu)'s ctime.pl
+;#		TZ handling changes.
+;#
+;#	NONE		2.1		09feb91		tmcgonigal
+;#		Corrected week number calculations.
+;#
+;#	NONE		2.2		21oct91		tmcgonigal
+;#		Added ls(1) date format, `%l'.
+;#
+;#	NONE		2.3		06nov91		tmcgonigal
+;#		Added SysV touch(1) date-time format, `%V' (pretty thin as
+;#		mnemonics go, I know, but `t' and `T' were both gone already!)
+;#
+;#	NONE		2.4		05jan92		tmcgonigal
+;#		Corrected slight (cosmetic) problem with %V replacment string
+;#
+;#	NONE		3.0		09jul92		tmcgonigal
+;#		Fixed a couple of problems with &ls as pointed out by
+;#		Thomas Richter (richter@ki1.chemie.fu-berlin.de), thanks Thomas!
+;#		Also added a couple of SunOS 4.1.1 strftime-ish formats, %i and %k
+;#		for space padded hours (` 1' to `12' and ` 0' to `23' respectivly),
+;#		and %C for locale long date/time format.  Changed &ampmH to take a
+;#		pad char parameter to make to evaled code for %i and %k simpler. 
+;#		Added %E for suffixed day-of-month (ie 1st, 3rd, 4th etc).
+;#
+;#	NONE		3.1		16jul92		tmcgonigal
+;#		Added `%u' format to generate date/time in date(1) required
+;#		format (ie '%y%m%d%H%M.%S').
+;#
+;#	NONE		3.2		23jan93		tmcgonigal
+;#		Added `%f' format to generate space padded month numbers, added
+;#		`%E' to the header comments, it seems to have been left out (and
+;#		I'm sure I wanted to use it at some point in the past...).
+;#
+;#	NONE		3.3		03feb93		tmcgonigal
+;#		Corrected some problems with AM/PM handling pointed out by
+;#		Michael S. Muegel (mmuegel@mot.com).  Thanks Michael, I hope
+;#		this is the behaviour you were looking for, it seems more
+;#		correct to me...
+;#
+;#	NONE		3.4		26jul93		tmcgonigal
+;#		Incorporated some fixes provided by DaviD W. Sanderson
+;#		(dws@ssec.wisc.edu): February was spelled incorrectly and
+;#		&wkno() was always using the current year while calculating
+;#		week numbers, regardless of year implied by the time value
+;#		passed to &date().  DaviD also contributed an improved &date()
+;#		test script, thanks DaviD, I appreciate the effort.  Finally,
+;#		changed my mailling address from @gvc.com to @gallium.com
+;#		to reflect, well, my new address!
+;#
+;# SccsId = "%W% %E%"
+;#
+require 'timelocal.pl';
+package date;
+X
+# Months of the year
+@MoY = ('January',	'February',	'March',	'April',	'May',		'June',
+X		'July',		'August',	'September','October',	'November', 'December');
+X
+# days of the week
+@DoW = ('Sunday',	'Monday',	'Tuesday',	'Wednesday',
+X		'Thursday',	'Friday',	'Saturday');
+X
+# CUSTOMIZE - defaults
+$defaultTZ = 'CST';						# time zone (hack!)
+$defaultFMT = '%a %h %e %T %z%Y';		# format (ala date(1))
+X
+# CUSTOMIZE - `local' formats
+$locTF = '%T';							# time (as HH:MM:SS)
+$locDF = '%D';							# date (as mm/dd/yy)
+$locDTF = '%a %b %d %T %Y';				# date/time (as dow mon dd HH:MM:SS yyyy)
+$locLDTF = '%i:%M:%S %p %A %B %E %Y';	# long date/time (as HH:MM:SS a/p day month dom yyyy)
+X
+# Time zone info
+$TZ;									# wkno needs this info too
+X
+# define the known format tags as associative keys with their associated
+# replacement strings as values.  Each replacement string should be
+# an eval-able expresion assigning a value to $rep.  These expressions are
+# eval-ed, then the value of $rep is substituted into the supplied
+# format (if any).
+%Tags = ( '%a', q|($rep = $DoW[$wday])=~ s/^(...).*/\1/|,	# abbr. weekday name - Sun to Sat
+X		  '%A', q|$rep = $DoW[$wday]|,						# full weekday name - Sunday to Saturday
+X		  '%b', q|($rep = $MoY[$mon]) =~ s/^(...).*/\1/|,	# abbr. month name - Jan to Dec
+X		  '%B', q|$rep = $MoY[$mon]|,						# full month name - January to December
+X		  '%c', q|$rep = $locDTF; 1|,						# date/time in local format
+X		  '%C', q|$rep = $locLDTF; 1|,						# date/time in local long format
+X		  '%d',	q|$rep = &date'pad($mday, 2, "0")|,			# day of month - 01 to 31
+X		  '%D',	q|$rep = '%m/%d/%y'|,						# date as mm/dd/yy
+X		  '%e', q|$rep = &date'pad($mday, 2, " ")|,			# day of month (space padded) ` 1' to `31'
+X		  '%E', q|$rep = &date'dsuf($mday)|,				# day of month (w/suffix) `1st' to `31st'
+X		  '%f', q|$rep = &date'pad($mon+1, 2, " ")|,		# month of year (space padded) ` 1' to `12'
+X		  '%h', q|$rep = '%b'|,								# abbr. month name (same as %b)
+X		  '%H',	q|$rep = &date'pad($hour, 2, "0")|,			# hour - 00 to 23
+X		  '%i', q|$rep = &date'ampmH($hour, " ")|,			# hour (space padded ` 1' to `12'
+X		  '%I', q|$rep = &date'ampmH($hour, "0")|,			# hour - 01 to 12
+X		  '%j', q|$rep = &date'pad($yday+1, 3, "0")|,		# Julian date 001 - 366
+X		  '%k', q|$rep = &date'pad($hour, 2, " ")|,			# hour (space padded) ` 0' to `23'
+X		  '%l', q|$rep = '%b %d ' . &date'ls($year)|,		# ls(1) style date
+X		  '%m',	q|$rep = &date'pad($mon+1, 2, "0")|,		# month of year - 01 to 12
+X		  '%M', q|$rep = &date'pad($min, 2, "0")|,			# minute - 00 to 59
+X		  '%n',	q|$rep = "\n"|,								# insert a newline
+X		  '%p', q|$rep = &date'ampmD($hour)|,				# insert `AM' or `PM'
+X		  '%r', q|$rep = '%I:%M:%S %p'|,					# time in AM/PM notation
+X		  '%R', q|$rep = '%H:%M'|,							# time as HH:MM
+X		  '%S', q|$rep = &date'pad($sec, 2, "0")|,			# second - 00 to 59
+X		  '%t',	q|$rep = "\t"|,								# insert a tab
+X		  '%T',	q|$rep = '%H:%M:%S'|,						# time as HH:MM:SS
+X		  '%u', q|$rep = '%y%m%d%H%M.%S'|,					# daaate/time in date(1) required format
+X		  '%U',	q|$rep = &date'wkno($year, $yday, 0)|,		# week number (weeks start on Sun) - 00 to 53
+X		  '%V', q|$rep = '%m%d%H%M%y'|,						# SysV touch(1) date-time format (mmddHHMMyy)
+X		  '%w', q|$rep = $wday; 1|,							# day of week - Sunday = 0
+X		  '%W', q|$rep = &date'wkno($year, $yday, 1)|,		# week number (weeks start on Mon) - 00 to 53
+X		  '%x', q|$rep = $locDF; 1|,						# date in local format
+X		  '%X', q|$rep = $locTF; 1|,						# time in local format
+X		  '%y', q|($rep = $year) =~ s/..(..)/\1/|,			# last 2 digits of year - 00 to 99
+X		  '%Y', q|$rep = "$year"; 1|,						# full year ~ 1700 to 2000 odd
+X		  '%z', q|$rep = $TZ eq "" ? "" : "$TZ "|,			# time zone from TZ env var (w/trail. space)
+X		  '%Z', q|$rep = $TZ; 1|,							# time zone from TZ env. var.
+X		  '%%', q|$rep = '%'; $adv=1|,						# insert a `%'
+X		  '%+', q|$rep = '+'|								# insert a `+'
+);
+X	
+sub main'date {
+X	local($time, $format) = @_;
+X	local($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
+X	local($pos, $tag, $rep, $adv) = (0, "", "", 0);
+X
+X	# default to date/ctime format or strip leading `+'...
+X	if ($format eq "") {
+X		$format = $defaultFMT;
+X	} elsif ($format =~ /^\+/) {
+X		$format = $';
+X	}
+X
+X	# Use local time if can't find a TZ in the environment
+X	$TZ = defined($ENV{'TZ'}) ? $ENV{'TZ'} : $defaultTZ;
+X	($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = 
+X		&gettime ($TZ, $time);
+X
+X	# Hack to deal with 'PST8PDT' format of TZ
+X	# Note that this can't deal with all the esoteric forms, but it
+X	# does recognize the most common: [:]STDoff[DST[off][,rule]]
+X	if ($TZ =~ /^([^:\d+\-,]{3,})([+-]?\d{1,2}(:\d{1,2}){0,2})([^\d+\-,]{3,})?/) {
+X		$TZ = $isdst ? $4 : $1;
+X	}
+X
+X	# watch out in 2070...
+X	$year += ($year < 70) ? 2000 : 1900;
+X
+X	# now loop throught the supplied format looking for tags...
+X	while (($pos = index ($format, '%')) != -1) {
+X
+X		# grab the format tag
+X		$tag = substr($format, $pos, 2);
+X		$adv = 0;							# for `%%' processing
+X
+X		# do we have a replacement string?
+X		if (defined $Tags{$tag}) {
+X
+X			# trap dead evals...
+X			if (! eval $Tags{$tag}) {
+X				print STDERR "date.pl: internal error: eval for $tag failed: $@\n";
+X				return "";
+X			}
+X		} else {
+X			$rep = "";
+X		}
+X			
+X		# do the substitution
+X		substr ($format, $pos, 2) =~ s/$tag/$rep/;
+X		$pos++ if ($adv);
+X	}
+X
+X	$format;
+}
+X
+# dsuf - add `st', `nd', `rd', `th' to a date (ie 1st, 22nd, 29th)
+sub dsuf {
+X	local ($mday) = @_;
+X
+X	return $mday . 'st' if ($mday =~ m/.*1$/);
+X	return $mday . 'nd' if ($mday =~ m/.*2$/);
+X	return $mday . 'rd' if ($mday =~ m/.*3$/);
+X	return $mday . 'th';
+}
+X	
+# weekno - figure out week number
+sub wkno {
+X	local ($year, $yday, $firstweekday) = @_;   
+X	local ($jan1, @jan1, $wks);
+X
+X	# figure out the `time' value for January 1 of the given year
+X	$jan1 = &maketime ($TZ, 0, 0, 0, 1, 0, $year-1900);
+X
+X	# figure out what day of the week January 1 was
+X	@jan1= &gettime ($TZ, $jan1);
+X	
+X	# and calculate the week number
+X	$wks = (($yday + ($jan1[6] - $firstweekday)) + 1)/ 7;
+X	$wks += (($wks - int($wks) > 0.0) ? 1 : 0);
+X
+X	# supply zero padding
+X	&pad (int($wks), 2, "0");
+}
+X
+# ampmH - figure out am/pm (1 - 12) mode hour value, padded with $p (0 or ' ')
+sub ampmH { local ($h, $p) = @_;  &pad($h>12 ? $h-12 : ($h ? $h : 12), 2, $p); }
+X
+# ampmD - figure out am/pm designator
+sub ampmD { shift @_ >= 12 ? "PM" : "AM"; }
+X
+# gettime - get the time via {local,gmt}time
+sub gettime { ((shift @_) eq 'GMT') ? gmtime(shift @_) : localtime(shift @_); }
+X
+# maketime - make a time via time{local,gmt}
+sub maketime { ((shift @_) eq 'GMT') ? &main'timegm(@_) : &main'timelocal(@_); }
+X
+# ls - generate the time/year portion of an ls(1) style date
+sub ls {
+X	return ((&gettime ($TZ, time))[5] == @_[0]) ? "%R" : " %Y";
+}
+X
+# pad - pad $in with leading $pad until lenght $len
+sub pad {
+X	local ($in, $len, $pad) = @_;
+X	local ($out) = "$in";
+X
+X	$out = $pad . $out until (length ($out) == $len);
+X	return $out;
+}
+X
+1;
+SHAR_EOF
+chmod 0444 libs/date.pl ||
+echo 'restore of libs/date.pl failed'
+Wc_c="`wc -c < 'libs/date.pl'`"
+test 12339 -eq "$Wc_c" ||
+	echo 'libs/date.pl: original size 12339, current size' "$Wc_c"
+fi
+# ============= libs/elapsed.pl ==============
+if test -f 'libs/elapsed.pl' -a X"$1" != X"-c"; then
+	echo 'x - skipping libs/elapsed.pl (File already exists)'
+else
+echo 'x - extracting libs/elapsed.pl (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'libs/elapsed.pl' &&
+;# NAME
+;#    elapsed.pl - convert seconds to elapsed time format
+;#
+;# AUTHOR
+;#    Michael S. Muegel <mmuegel@mot.com>
+;#
+;# RCS INFORMATION
+;#    mmuegel
+;#    /usr/local/ustart/src/mail-tools/dist/foo/libs/elapsed.pl,v
+;#    1.1 of 1993/07/28 08:07:19
+X
+package elapsed;
+X
+# Time field types
+$DAYS		= 1;
+$HOURS		= 2;
+$MINUTES	= 3;
+$SECONDS	= 4;
+X
+# The array contains four records each with four fields. The fields are,
+# in order:
+#
+#    Type		Specifies what kind of time field this is. Once of
+#			$DAYS, $HOURS, $MINUTES, or $SECONDS.
+#
+#    Multiplier		Specifies what time field this is via the minimum
+#			number of seconds this time field may specify. For
+#			example, the minutes field would be non-zero
+#			when there are 60 or more seconds.
+#			
+#    Separator		How to separate this time field from the next
+#			*greater* field.
+#
+#    Format		sprintf() format specifier on how to print this
+#			time field.
+@MULT_AND_SEPS = ($DAYS, 60 * 60 * 24, "+", "%d",
+X                  $HOURS, 60 * 60, ":", "%d",
+X                  $MINUTES, 60, ":", "%02d",
+X                  $SECONDS, 1, "", "%02d"
+X                 );
+X
+;###############################################################################
+;# Seconds_To_Elapsed
+;#
+;# Coverts a seconds count to form [d+]h:mm:ss. If $Collapse
+;# is true then the result is compacted somewhat. The string returned
+;# will be of the form [d+][[h:]mm]:ss.
+;#
+;# Arguments:
+;#    $Seconds, $Collapse
+;#
+;# Examples:
+;#    &Seconds_To_Elapsed (0, 0) 	-> 0:00:00
+;#    &Seconds_To_Elapsed (0, 1) 	-> :00
+;#
+;#    &Seconds_To_Elapsed (119, 0) 	-> 0:01:59
+;#    &Seconds_To_Elapsed (119, 1) 	-> 01:59
+;#
+;#    &Seconds_To_Elapsed (3601, 0) 	-> 1:00:01
+;#    &Seconds_To_Elapsed (3601, 1) 	-> 1:00:01
+;#
+;#    &Seconds_To_Elapsed (86401, 0) 	-> 1+0:00:01
+;#    &Seconds_To_Elapsed (86401, 1) 	-> 1+:01
+;#
+;# Returns:
+;#    $Elapsed
+;###############################################################################
+sub main'Seconds_To_Elapsed
+{
+X   local ($Seconds, $Collapse) = @_;
+X   local ($Type, $Multiplier, @Multipliers, $Separator, $DHMS_Used, 
+X          $Elapsed, @Mult_And_Seps, $Print_Field);
+X
+X   $Multiplier = 1;
+X   @Mult_And_Seps = @MULT_AND_SEPS;
+X
+X   # Keep subtracting the number of seconds corresponding to a time field
+X   # from the number of seconds passed to the function.
+X   while (1)
+X   {
+X      ($Type, $Multiplier, $Separator, $Format) = splice (@Mult_And_Seps, 0, 4);
+X      last if (! $Multiplier);
+X      $Seconds -= $DHMS_Used * $Multiplier 
+X         if ($DHMS_Used = int ($Seconds / $Multiplier));
+X
+X      # Figure out if we should print this field
+X      if ($Type == $DAYS)
+X      {
+X	 $Print_Field = $DHMS_Used;
+X      }
+X
+X      elsif ($Collapse)
+X      {
+X	 if ($Type == $HOURS)
+X	 {
+X	    $Print_Field = $DHMS_Used;
+X	 }
+X	 elsif ($Type == $MINUTES)
+X	 {
+X	    $Print_Field = $DHMS_Used || $Printed_Field {$HOURS};
+X	 }
+X	 else
+X	 {
+X	    $Format = ":%02d" 
+X	       if (! $Printed_Field {$MINUTES});
+X	    $Print_Field = 1;
+X	 };
+X      }
+X
+X      else
+X      {
+X	 $Print_Field = 1;
+X      };
+X
+X      $Printed_Field {$Type} = $Print_Field;
+X      $Elapsed .= sprintf ("$Format%s", $DHMS_Used, $Separator) 
+X	 if ($Print_Field);
+X   };
+X
+X   return ($Elapsed);
+};
+X
+1;
+SHAR_EOF
+chmod 0444 libs/elapsed.pl ||
+echo 'restore of libs/elapsed.pl failed'
+Wc_c="`wc -c < 'libs/elapsed.pl'`"
+test 3198 -eq "$Wc_c" ||
+	echo 'libs/elapsed.pl: original size 3198, current size' "$Wc_c"
+fi
+# ============= libs/mail.pl ==============
+if test -f 'libs/mail.pl' -a X"$1" != X"-c"; then
+	echo 'x - skipping libs/mail.pl (File already exists)'
+else
+echo 'x - extracting libs/mail.pl (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'libs/mail.pl' &&
+;# NAME
+;#    mail.pl - perl function(s) to handle mail processing
+;#
+;# AUTHOR
+;#    Michael S. Muegel (mmuegel@mot.com)
+;#
+;# RCS INFORMATION
+;#    mmuegel
+;#    /usr/local/ustart/src/mail-tools/dist/foo/libs/mail.pl,v 1.1 1993/07/28 08:07:19 mmuegel Exp
+X
+package mail;
+X
+# Mailer statement to eval. $Users, $Subject, and $Verbose are substituted 
+# via eval
+$BIN_MAILER 		= "/usr/ucb/mail \$Verbose -s '\$Subject' \$Users";
+X
+# Sendmail command to use when $Use_Sendmail is true.
+$SENDMAIL		= '/usr/lib/sendmail $Verbose $Users';
+X
+;###############################################################################
+;# Send_Mail
+;#
+;# Sends $Message to $Users with a subject of $Subject. If $Message_Is_File
+;# is true then $Message is assumed to be a filename pointing to the mail
+;# message. This is a new option and thus the backwards-compatible hack.
+;# $Users should be a space separated list of mail-ids.
+;#
+;# If everything went OK $Status will be 1 and $Error_Msg can be ignored; 
+;# otherwise, $Status will be 0 and $Error_Msg will contain an error message.
+;# 
+;# If $Use_Sendmail is 1 then sendmail is used to send the message. Normally
+;# a mailer such as Mail is used. By specifiying this you can include 
+;# headers in addition to text in either $Message or $Message_Is_File.
+;# If either $Message or $Message_Is_File contain a Subject: header then
+;# $Subject is ignored; otherwise, a Subject: header is automatically created.
+;# Similar to the Subject: header, if a To: header does not exist one
+;# is automatically created from the $Users argument. The mail is still
+;# sent, however, to the recipients listed in $Users. This is keeping with
+;# normal sendmail usage (header vs. envelope).
+;# 
+;# In both bin mailer and sendmail modes $Verbose will turn on verbose mode
+;# (normally just sendmail verbose mode output).
+;#
+;# Arguments:
+;#    $Users, $Subject, $Message, $Message_Is_File, $Verbose, $Use_Sendmail
+;#
+;# Returns:
+;#    $Status, $Error_Msg
+;###############################################################################
+sub main'Send_Mail
+{
+X   local ($Users, $Subject, $Message, $Message_Is_File, $Verbose, 
+X	  $Use_Sendmail) = @_;
+X   local ($BIN_MAILER_HANDLE, $Mailer_Command, $Header_Found, %Header_Map,
+X	  $Header_Extra, $Mailer);
+X
+X   # If the message is contained in a file read it in so we can have one
+X   # consistent interface
+X   if ($Message_Is_File)
+X   {
+X      undef $/;
+X      $Message_Is_File = 0;
+X      open (Message) || return (0, "error reading $Message: $!");
+X      $Message = <Message>;
+X      close (Message);
+X   };
+X
+X   # If sendmail mode see if we need to add some headers
+X   if ($Use_Sendmail)
+X   {
+X      # Determine if a header block is included in the message and what headers
+X      # are there
+X      foreach (split (/\n/, $Message))
+X      {
+X	 last if ($_ eq "");
+X	 $Header_Found = $Header_Map {$1} = 1 if (/^([A-Z]\S*): /);
+X      };
+X
+X      # Add some headers?
+X      if (! $Header_Map {"To"})
+X      {
+X	 $Header_Extra .= "To: " . join (", ", $Users) . "\n";
+X      };
+X      if (($Subject ne "") && (! $Header_Map {"Subject"}))
+X      {
+X	 $Header_Extra .= "Subject: $Subject\n";
+X      };
+X
+X      # Add the required blank line between header/body if there where no
+X      # headers to begin with
+X      if ($Header_Found)
+X      {
+X         $Message = "$Header_Extra$Message";
+X      }
+X      else
+X      {
+X	 $Message = "$Header_Extra\n$Message";
+X      };
+X   };
+X
+X   # Get a string that is the mail command
+X   $Verbose = ($Verbose) ? "-v" : "";
+X   $Mailer = ($Use_Sendmail) ? $SENDMAIL : $BIN_MAILER;
+X   eval "\$Mailer = \"$Mailer\"";
+X   return (0, "error setting \$Mailer: $@") if ($@);
+X
+X   # need to catch SIGPIPE in case the $Mailer call fails
+X   $SIG {'PIPE'} = "mail'Cleanup";
+X
+X   # Open mailer
+X   return (0, "can not open mail program: $Mailer") if (! open (MAILER, "| $Mailer"));
+X   
+X   # Send off the mail!
+X   print MAILER $Message;
+X   close (MAILER);
+X   return (0, "error running mail program: $Mailer") if ($?);
+X   
+X   # Everything must have went AOK
+X   return (1);
+};
+X
+;###############################################################################
+;# Cleanup
+;#
+;# Simply here so we can catch SIGPIPE and not exit.
+;#
+;# Globals:
+;#    None
+;#
+;# Arguments:
+;#    None
+;#
+;# Returns:
+;#    Nothing exciting
+;###############################################################################
+sub Cleanup
+{
+};
+X
+1;
+SHAR_EOF
+chmod 0444 libs/mail.pl ||
+echo 'restore of libs/mail.pl failed'
+Wc_c="`wc -c < 'libs/mail.pl'`"
+test 4356 -eq "$Wc_c" ||
+	echo 'libs/mail.pl: original size 4356, current size' "$Wc_c"
+fi
+# ============= libs/mqueue.pl ==============
+if test -f 'libs/mqueue.pl' -a X"$1" != X"-c"; then
+	echo 'x - skipping libs/mqueue.pl (File already exists)'
+else
+echo 'x - extracting libs/mqueue.pl (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'libs/mqueue.pl' &&
+;# NAME
+;#    mqueue.pl - functions to work with the sendmail queue
+;#
+;# DESCRIPTION
+;#    Both Get_Queue_IDs and Parse_Control_File are available to get 
+;#    information about the sendmail queue. The cqueue program is a good
+;#    example of how these functions work.
+;#
+;# AUTHOR
+;#    Michael S. Muegel (mmuegel@mot.com)  
+;#
+;# RCS INFORMATION
+;#    mmuegel
+;#    /usr/local/ustart/src/mail-tools/dist/foo/libs/mqueue.pl,v
+;#    1.1 of 1993/07/28 08:07:19
+X
+package mqueue;
+X
+;###############################################################################
+;# Get_Queue_IDs
+;#
+;# Will figure out the queue IDs in $Queue that have both control and data
+;# files. They are returned in @Valid_IDs. Those IDs that have a
+;# control file and no data file are saved to the array globbed by 
+;# *Missing_Control_IDs. Likewise, those IDs that have a data file and no 
+;# control file are saved to the array globbed by *Missing_Data_IDs.
+;#
+;# If $Skip_Locked is true they a message that has a lock file is skipped
+;# and will not show up in any of the arrays.
+;#
+;# If everything went AOK then $Status is 1; otherwise, $Status is 0 and
+;# $Msg tells what went wrong.
+;#
+;# Globals:
+;#    None
+;#
+;# Arguments:
+;#    $Queue, $Skip_Locked, *Missing_Control_IDs, *Missing_Data_IDs
+;#
+;# Returns:
+;#    $Status, $Msg, @Valid_IDs
+;###############################################################################
+sub main'Get_Queue_IDs
+{
+X   local ($Queue, $Skip_Locked, *Missing_Control_IDs, 
+X          *Missing_Data_IDs) = @_;
+X   local (*QUEUE, @Files, %Lock_IDs, %Data_IDs, %Control_IDs, $_);
+X
+X   # Make sure that the * argument @arrays ar empty
+X   @Missing_Control_IDs = @Missing_Data_IDs = ();
+X
+X   # Save each data, lock, and queue file in @Files
+X   opendir (QUEUE, $Queue) || return (0, "error getting directory listing of $Queue");
+X   @Files = grep (/^(df|lf|qf)/, readdir (QUEUE));
+X   closedir (QUEUE);
+X   
+X   # Create indexed list of data and control files. IF $Skip_Locked is true
+X   # then skip either if there is a lock file present.
+X   if ($Skip_Locked)
+X   {
+X      grep ((s/^lf//) && ($Lock_IDs {$_} = 1), @Files);
+X      grep ((s/^df//) && (! $Lock_IDs {$_}) && ($Data_IDs {$_} = 1), @Files);
+X      grep ((s/^qf//) && (! $Lock_IDs {$_}) && ($Control_IDs {$_} = 1), @Files);
+X   }
+X   else
+X   {
+X      grep ((s/^df//) && ($Data_IDs {$_} = 1), @Files);
+X      grep ((s/^qf//) && ($Control_IDs {$_} = 1), @Files);
+X   };
+X   
+X   # Find missing control and data files and remove them from the lists of each
+X   @Missing_Control_IDs = sort (grep ((! $Control_IDs {$_}) && (delete $Data_IDs {$_}), keys (%Data_IDs)));
+X   @Missing_Data_IDs = sort (grep ((! $Data_IDs {$_} && (delete $Control_IDs {$_})), keys (%Control_IDs)));
+X   
+X   
+X   # Return the IDs in an appartently random order
+X   return (1, "", keys (%Control_IDs));
+};
+X
+X
+;###############################################################################
+;# Parse_Control_File
+;#
+;# Will pase a sendmail queue control file for useful information. See the
+;# Sendmail Installtion and Operation Guide (SMM:07) for a complete
+;# explanation of each field.
+;#
+;# The following globbed variables are set (or cleared) by this function:
+;#
+;#    $Sender           The sender's address. 
+;#
+;#    @Recipients       One or more addresses for the recipient of the mail.
+;#
+;#    @Errors_To        One or more addresses for addresses to which mail
+;#                      delivery errors should be sent.
+;#
+;#    $Creation_Time    The job creation time in time(3) format. That is,
+;#                      seconds since 00:00:00 GMT 1/1/70.
+;#
+;#    $Priority         An integer representing the current message priority.
+;#                      This is used to order the queue. Higher numbers mean 
+;#                      lower priorities.
+;#
+;#    $Status_Message   The status of the mail message. It can contain any
+;#                      text.
+;#
+;#    @Headers          Message headers unparsed but in their original order.
+;#                      Headers that span multiple lines are not mucked with,
+;#                      embedded \ns will be evident.
+;#
+;# In all e-mail addresses bounding <> pairs are stripped.
+;#
+;# If everything went AOK then $Status is 1. If the message with queue ID
+;# $Queue_ID just does not exist anymore -1 is returned. This is very
+;# possible and should be allowed for. Otherwise, $Status is 0 and $Msg 
+;# tells what went wrong.
+;#
+;# Globals:
+;#    None
+;#
+;# Arguments:
+;#    $Queue, $Queue_ID, *Sender, *Recipients, *Errors_To, *Creation_Time, 
+;#    *Priority, *Status_Message, *Headers
+;#
+;# Returns:
+;#    $Status, $Msg
+;###############################################################################
+sub main'Parse_Control_File
+{
+X   local ($Queue, $Queue_ID, *Sender, *Recipients, *Errors_To, *Creation_Time,
+X          *Priority, *Status_Message, *Headers) = @_;
+X   local (*Control, $_, $Not_Empty);
+X
+X   # Required variables and the associated control. If empty at the end of
+X   # parsing we return a bad status.
+X   @REQUIRED_INFO = ('$Creation_Time', 'T', '$Sender', 'S', '@Recipients', 'R',
+X		     '$Priority', 'P');
+X
+X   # Open up the control file for read
+X   $Control = "$Queue/qf$Queue_ID";
+X   if (! open (Control)) 
+X   {
+X      return (-1) if ((-x $Queue) && (! -f "$Queue/qf$Queue_ID") &&
+X       (! -f "$Queue/df$Queue_ID"));
+X      return (0, "error opening $Control for read: $!");
+X   };
+X
+X   # Reset the globbed variables just in case
+X   $Sender = $Creation_Time = $Priority = $Status_Message = "";
+X   @Recipients = @Errors_To = @Headers = ();
+X
+X   # Look for a few things in the control file
+X   READ: while (<Control>)
+X   {
+X      $Not_Empty = 1;
+X      chop;
+X
+X      PARSE:
+X      {
+X         if (/^T(\d+)$/)
+X         {
+X            $Creation_Time = $1;
+X         }
+X         elsif (/^S(<)?([^>]+)/)
+X         {
+X            $Sender = $2;
+X         }
+X         elsif (/^R(<)?([^>]+)/)
+X         {
+X            push (@Recipients, $2);
+X         }
+X         elsif (/^E(<)?([^>]+)/)
+X         {
+X            push (@Errors_To, $2);
+X         }
+X         elsif (/^M(.*)/)
+X         {
+X            $Status_Message = $1;
+X         }
+X         elsif (/^P(\d+)$/)
+X         {
+X            $Priority = $1;
+X         }
+X         elsif (/^H(.*)/)
+X         {
+X            $Header = $1;
+X            while (<Control>)
+X            {
+X               chop;
+X               last if (/^[A-Z]/);
+X               $Header .= "\n$_";
+X            };
+X            push (@Headers, $Header);
+X	    redo PARSE if ($_);
+X	    last if (eof);
+X         };
+X      };
+X   };
+X
+X   # If the file was empty scream bloody murder
+X   return (0, "empty control file") if (! $Not_Empty);
+X
+X   # Yell if we could not find a required field
+X   while (($Var, $Control) = splice (@REQUIRED_INFO, 0, 2))
+X   {
+X      eval "return (0, 'required control field $Control not found')
+X	       if (! $Var)";
+X      return (0, "error checking \$Var: $@") if ($@);
+X   };
+X
+X   # Everything went AOK
+X   return (1);
+};
+X
+1;
+SHAR_EOF
+chmod 0444 libs/mqueue.pl ||
+echo 'restore of libs/mqueue.pl failed'
+Wc_c="`wc -c < 'libs/mqueue.pl'`"
+test 6908 -eq "$Wc_c" ||
+	echo 'libs/mqueue.pl: original size 6908, current size' "$Wc_c"
+fi
+# ============= libs/newgetopts.pl ==============
+if test -f 'libs/newgetopts.pl' -a X"$1" != X"-c"; then
+	echo 'x - skipping libs/newgetopts.pl (File already exists)'
+else
+echo 'x - extracting libs/newgetopts.pl (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'libs/newgetopts.pl' &&
+;# NAME
+;#    newgetopts.pl - a better newgetopt (which is a better getopts which is
+;#                    a better getopt ;-)
+;#
+;# AUTHOR
+;#    Mike Muegel (mmuegel@mot.com)
+;#
+;# mmuegel
+;# /usr/local/ustart/src/mail-tools/dist/foo/libs/newgetopts.pl,v 1.1 1993/07/28 08:07:19 mmuegel Exp
+X
+;###############################################################################
+;# New_Getopts
+;#
+;# Does not care about order of switches, options, and arguments like 
+;# getopts.pl. Thus all non-switches/options will be kept in ARGV even if they
+;# are not at the end. If $Pass_Invalid is set all unkown options will be
+;# passed back to the caller by keeping them in @ARGV. This is useful when
+;# parsing a command line for your script while ignoring options that you
+;# may pass to another script. If this is set New_Getopts tries to maintain 
+;# the switch clustering on the unkown switches.
+;#
+;# Accepts the special argument -usage to print the Usage string. Also accepts 
+;# the special option -version which prints the contents of the string 
+;# $VERSION. $VERSION may or may not have an embeded \n in it. If -usage 
+;# or -version are specified a status of -1 is returned. Note that the usage
+;# option is only accepted if the usage string is not null.
+;# 
+;# $Switches is just like the formal arguemnt of getopts.pl. $Usage is a usage
+;# string with or without a trailing \n. *Switch_To_Order is an optional
+;# pointer to the name of an associative array which will contain a mapping of
+;# switch names to the order in which (if at all) the argument was entered.
+;#
+;# For example, if @ARGV contains -v, -x, test:
+;#
+;#    $Switch_To_Order {"v"} = 1;
+;#    $Switch_To_Order {"x"} = 2;
+;#
+;# Note that in the case of multiple occurances of an option $Switch_To_Order
+;# will store each occurance of the argument via a string that emulates
+;# an array. This is done by using join ($;, ...). You can retrieve the
+;# array by using split (/$;/, ...).
+;#
+;# *Split_ARGV is an optional pointer to an array which will conatin the
+;# original switches along with their values. For the example used above 
+;# Split_ARGV would contain:
+;#
+;#   @Split_ARGV = ("v", "", "x", "test");
+;#
+;# Another exciting ;-) feature that newgetopts has. Along with creating the 
+;# normal $opt_ scalars for the last value of an argument the list @opt_ is 
+;# created. It is an array which contains all the values of arguments to the 
+;# basename of the variable. They are stored in the order which they occured 
+;# on the command line starting with $[. Note that blank arguments are stored 
+;# as "". Along with providing support for multiple options on the command 
+;# line this also provides a method of counting the number of times an option 
+;# was specified via $#opt_.
+;#
+;# Automatically resets all $opt_, @opt_, %Switch_To_Order, and @Split_ARGV
+;# variables so that New_Getopts may be called more than once from within
+;# the same program. Thus, if $opt_v is set upon entry to New_Getopts and 
+;# -v is not in @ARGV $opt_v will not be set upon exit.
+;#
+;# Arguments:
+;#    $Switches, $Usage, $Pass_Invalid, *Switch_To_Order, *Split_ARGV
+;#
+;# Returns:
+;#    -1, 0, or 1 depending on status (printed Usage/Version, OK, not OK)
+;###############################################################################
+sub New_Getopts 
+{
+X    local($taint_argumentative, $Usage, $Pass_Invalid, *Switch_To_Order,
+X          *Split_ARGV) = @_;
+X    local(@args,$_,$first,$rest,$errs, @leftovers, @current_leftovers,
+X          %Switch_Found);
+X    local($[, $*, $Script_Name, $argumentative);
+X
+X    # Untaint the argument cluster so that we can use this with taintperl
+X    $taint_argumentative =~ /^(.*)$/;
+X    $argumentative = $1;
+X
+X    # Clear anything that might still be set from a previous New_Getopts
+X    # call.
+X    @Split_ARGV = ();
+X
+X    # Get the basename of the calling script
+X    ($Script_Name = $0) =~ s/.*\///;
+X    
+X    # Make Usage have a trailing \n
+X    $Usage .= "\n" if ($Usage !~ /\n$/);
+X
+X    @args = split( / */, $argumentative );
+X
+X    # Clear anything that might still be set from a previous New_Getopts call.
+X    foreach $first (@args)
+X    {
+X       next if ($first eq ":");
+X       delete $Switch_Found {$first};
+X       delete $Switch_To_Order {$first};
+X       eval "undef \@opt_$first; undef \$opt_$first;";
+X    };
+X
+X    while (@ARGV)
+X    {
+X        # Let usage through
+X        if (($ARGV[0] eq "-usage") && ($Usage ne "\n"))
+X        {
+X           print $Usage;
+X           exit (-1);
+X        }
+X
+X        elsif ($ARGV[0] eq "-version")
+X        {
+X           if ($VERSION)
+X           {
+X              print $VERSION;
+X              print "\n" if ($VERSION !~ /\n$/);
+X           }
+X           else
+X           {
+X              warn "${Script_Name}: no version information available, sorry\n";
+X           }
+X           exit (-1);
+X        }
+X
+X        elsif (($_ = $ARGV[0]) =~ /^-(.)(.*)/)
+X        {
+X           ($first,$rest) = ($1,$2);
+X           $pos = index($argumentative,$first);
+X
+X           $Switch_To_Order {$first} = join ($;, split (/$;/, $Switch_To_Order {$first}), ++$Order);
+X
+X           if($pos >= $[) 
+X           {
+X               if($args[$pos+1] eq ':') 
+X               {
+X                   shift(@ARGV);
+X                   if($rest eq '') 
+X                   {
+X                       $rest = shift(@ARGV);
+X                   }
+X
+X                   eval "\$opt_$first = \$rest;";
+X                   eval "push (\@opt_$first, \$rest);";
+X                   push (@Split_ARGV, $first, $rest);
+X               }
+X               else 
+X               {
+X                   eval "\$opt_$first = 1";
+X                   eval "push (\@opt_$first, '');";
+X                   push (@Split_ARGV, $first, "");
+X
+X                   if($rest eq '') 
+X                   {
+X                       shift(@ARGV);
+X                   }
+X                   else 
+X                   {
+X                       $ARGV[0] = "-$rest";
+X                   }
+X               }
+X           }
+X
+X           else 
+X           {
+X               # Save any other switches if $Pass_Valid
+X               if ($Pass_Invalid)
+X               {
+X                  push (@current_leftovers, $first);
+X               }
+X               else
+X               {
+X                  warn "${Script_Name}: unknown option: $first\n";
+X                  ++$errs;
+X               };
+X               if($rest ne '') 
+X               {
+X                   $ARGV[0] = "-$rest";
+X               }
+X               else 
+X               {
+X                   shift(@ARGV);
+X               }
+X           }
+X        }
+X
+X        else
+X        {
+X           push (@leftovers, shift (@ARGV));
+X        };
+X
+X        # Save any other switches if $Pass_Valid
+X        if ((@current_leftovers) && ($rest eq ''))
+X        {
+X           push (@leftovers, "-" . join ("", @current_leftovers));
+X           @current_leftovers = ();
+X        };
+X    };
+X
+X    # Automatically print Usage if a warning was given
+X    @ARGV = @leftovers;
+X    if ($errs != 0)
+X    {
+X       warn $Usage;
+X       return (0);
+X    }
+X    else
+X    {
+X       return (1);
+X    }
+X       
+}
+X
+1;
+SHAR_EOF
+chmod 0444 libs/newgetopts.pl ||
+echo 'restore of libs/newgetopts.pl failed'
+Wc_c="`wc -c < 'libs/newgetopts.pl'`"
+test 7024 -eq "$Wc_c" ||
+	echo 'libs/newgetopts.pl: original size 7024, current size' "$Wc_c"
+fi
+# ============= libs/strings1.pl ==============
+if test -f 'libs/strings1.pl' -a X"$1" != X"-c"; then
+	echo 'x - skipping libs/strings1.pl (File already exists)'
+else
+echo 'x - extracting libs/strings1.pl (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'libs/strings1.pl' &&
+;# NAME
+;#    strings1.pl - FUN with strings #1
+;#
+;# NOTES
+;#    I wrote Format_Text_Block when I just started programming Perl so
+;#    it is probably not very Perlish code. Center is more like it :-).
+;#
+;# AUTHOR
+;#    Michael S. Muegel (mmuegel@mot.com)
+;#
+;# RCS INFORMATION
+;#    mmuegel
+;#    /usr/local/ustart/src/mail-tools/dist/foo/libs/strings1.pl,v 1.1 1993/07/28 08:07:19 mmuegel Exp
+X
+package strings1;
+X
+;###############################################################################;# Center
+;#
+;# Center $Text assuming the output should be $Columns wide. $Text can span
+;# multiple lines, of course :-). Lines within $Text that contain only 
+;# whitespace are not centered and are instead collapsed. This may save time 
+;# when printing them later.
+;#
+;# Arguments:
+;#    $Text, $Columns
+;#
+;# Returns:
+;#    $Centered_Text
+;###############################################################################
+sub main'Center
+{
+X   local ($_, $Columns) = @_;
+X   local ($*) = 1;
+X
+X   s@^(.*)$@" " x (($Columns - length ($1)) / 2) . $1@eg;
+X   s/^[\t ]*$//g;
+X   return ($_);
+};
+X
+;###############################################################################
+;# Format_Text_Block
+;#
+;# Formats a text string to be printed to the display or other similar device.
+;# Text in $String will be fomratted such that the following hold:
+;#
+;#    + $String contains the (possibly) multi-line text to print. It is
+;#	automatically word-wrapped to fit in $Columns. 
+;#
+;#    + \n'd are maintained and are not folded.
+;#
+;#    + $Offset	is pre-pended before each separate line of text. 
+;#
+;#    + If $Offset_Once	is $TRUE $Offset will only appear on the first line.
+;#      All other lines will be indented to match the amount of whitespace of
+;#      $Offset.
+;#
+;#    + If $Bullet_Indent is $TRUE $Offset will only be applied to the begining
+;#      of lines as they occured in the original $String. Lines that are created
+;#      by this routine will always be indented by blank spaces.
+;#
+;#    + If $Columns is 0 no word-wrap is done. This might be useful to still
+;#      to offset each line in a buffer.
+;#
+;#    + If $Split_Expr is supplied the string is split on it. If not supplied
+;#      the string is split on " \t\/\-\,\." by default.
+;#
+;#    + If $Offset_Blank is $TRUE then empty lines will have $Offset pre-pended
+;#      to them. Otherwise, they will still empty.
+;#
+;# This is a realy workhorse routine that I use in many places because of its
+;# veratility.
+;#
+;# Arguments:
+;#    $String, $Offset, $Offset_Once, $Bullet_Indent, $Columns, $Split_Expr,
+;#    $Offset_Blank
+;#
+;# Returns:
+;#    $Buffer
+;###############################################################################
+sub main'Format_Text_Block
+{
+X   local ($String, $Real_Offset, $Offset_Once, $Bullet_Indent, $Columns, 
+X      $Split_Expr, $Offset_Blank) = @_;
+X
+X   local ($New_Line, $Line, $Chars_Per_Line, $Space_Offset, $Buffer,
+X      $Next_New_Line, $Num_Lines, $Num_Offsets, $Offset);
+X   local ($*) = 0;
+X   local ($BLANK_TAG) = "__FORMAT_BLANK__";
+X   local ($Blank_Offset) = $Real_Offset if ($Offset_Blank);
+X
+X   # What should we split on?
+X   $Split_Expr = " \\t\\/\\-\\,\\." if (! $Split_Expr);
+X
+X   # Pre-process the string - convert blank lines to __FORMAT_BLANK__ sequence
+X   $String =~ s/\n\n/\n$BLANK_TAG\n/g;
+X   $String =~ s/^\n/$BLANK_TAG\n/g;
+X   $String =~ s/\n$/\n$BLANK_TAG/g;
+X
+X   # If bad $Columns/$Offset combo or no $Columns make a VERRRYYY wide $Column
+X   $Offset = $Real_Offset;
+X   $Chars_Per_Line = 16000 if (($Chars_Per_Line = $Columns - length ($Offset)) <= 0);
+X   $Space_Offset = " " x length ($Offset);
+X
+X   # Get a buffer
+X   foreach $Line (split ("\n", $String))
+X   {
+X      $Offset = $Real_Offset if ($Bullet_Indent);
+X
+X      # Find where to split the line
+X      if ($Line ne $BLANK_TAG)
+X      { 
+X         $New_Line = "";
+X         while ($Line =~ /^([$Split_Expr]*)([^$Split_Expr]+)/)
+X         {
+X            if (length ("$New_Line$&") >= $Chars_Per_Line)
+X            {
+X               $Next_New_Line = $+;
+X               $New_Line = "$Offset$New_Line$1";
+X               $Buffer .= "\n" if ($Num_Lines++);
+X               $Buffer .= $New_Line;
+X               $Offset = $Space_Offset if (($Offset) && ($Offset_Once));
+X               $New_Line = $Next_New_Line;
+X               ++$Num_Lines;
+X            }
+X            else
+X            {
+X               $New_Line .= $&;
+X            };
+X            $Line = $';
+X         };
+X
+X         $Buffer .= "\n" if ($Num_Lines++);
+X         $Buffer .= "$Offset$New_Line$Line";
+X         $Offset = $Space_Offset if (($Offset) && ($Offset_Once));
+X      }
+X
+X      else
+X      {
+X         $Buffer .= "\n$Blank_Offset";
+X      };
+X   };
+X
+X   return ($Buffer);
+X
+};
+X
+1;
+SHAR_EOF
+chmod 0444 libs/strings1.pl ||
+echo 'restore of libs/strings1.pl failed'
+Wc_c="`wc -c < 'libs/strings1.pl'`"
+test 4687 -eq "$Wc_c" ||
+	echo 'libs/strings1.pl: original size 4687, current size' "$Wc_c"
+fi
+# ============= libs/timespec.pl ==============
+if test -f 'libs/timespec.pl' -a X"$1" != X"-c"; then
+	echo 'x - skipping libs/timespec.pl (File already exists)'
+else
+echo 'x - extracting libs/timespec.pl (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'libs/timespec.pl' &&
+;# NAME
+;#    timespec.pl - convert a pre-defined time specifyer to seconds
+;#
+;# AUTHOR
+;#    Michael S. Muegel (mmuegel@mot.com)
+;#
+;# RCS INFORMATION
+;#    mmuegel
+;#    /usr/local/ustart/src/mail-tools/dist/foo/libs/timespec.pl,v 1.1 1993/07/28 08:07:19 mmuegel Exp
+X
+package timespec;
+X
+%TIME_SPEC_TO_SECONDS 	= ("s", 1,
+X		    	   "m", 60,
+X		    	   "h", 60 * 60,
+X		    	   "d", 60 * 60 * 24
+X		    	   );
+X
+$VALID_TIME_SPEC_EXPR 	= "[" . join ("", keys (%TIME_SPEC_TO_SECONDS)) . "]";
+X
+;###############################################################################
+;# Time_Spec_To_Seconds
+;#
+;# Converts a string of the form:
+;#
+;#    (<number>(s|m|h|d))+
+;#
+;# to seconds. The second part of the time spec specifies seconds, minutes, 
+;# hours, or days, respectfully. The first part is the number of those untis. 
+;# There can be any number of such specifiers. As an example, 1h30m means 1 
+;# hour and 30 minutes.
+;#
+;# If the parsing went OK then $Status is 1, $Msg is undefined, and $Seconds
+;# is $Time_Spec converted to seconds. If something went wrong then $Status
+;# is 0 and $Msg explains what went wrong.
+;#
+;# Arguments:
+;#    $Time_Spec
+;#
+;# Returns:
+;#    $Status, $Msg, $Seconds
+;###############################################################################
+sub main'Time_Spec_To_Seconds
+{
+X   $Time_Spec = $_[0];
+X
+X   $Seconds = 0;
+X   while ($Time_Spec =~ /^(\d+)($VALID_TIME_SPEC_EXPR)/)
+X   {
+X      $Seconds += $1 * $TIME_SPEC_TO_SECONDS {$2};
+X      $Time_Spec = $';
+X   };
+X
+X   return (0, "error parsing time spec: $Time_Spec") if ($Time_Spec ne "");
+X   return (1, "", $Seconds);
+X
+};
+X
+X
+1;
+SHAR_EOF
+chmod 0444 libs/timespec.pl ||
+echo 'restore of libs/timespec.pl failed'
+Wc_c="`wc -c < 'libs/timespec.pl'`"
+test 1609 -eq "$Wc_c" ||
+	echo 'libs/timespec.pl: original size 1609, current size' "$Wc_c"
+fi
+# ============= man/cqueue.1 ==============
+if test ! -d 'man'; then
+    echo 'x - creating directory man'
+    mkdir 'man'
+fi
+if test -f 'man/cqueue.1' -a X"$1" != X"-c"; then
+	echo 'x - skipping man/cqueue.1 (File already exists)'
+else
+echo 'x - extracting man/cqueue.1 (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'man/cqueue.1' &&
+.TH CQUEUE 1L
+\"
+\" mmuegel
+\" /usr/local/ustart/src/mail-tools/dist/foo/man/cqueue.1,v 1.1 1993/07/28 08:08:25 mmuegel Exp
+\"
+.ds mp \fBcqueue\fR
+.de IB
+.IP \(bu 2
+..
+.SH NAME
+\*(mp - check sendmail queue for problems
+.SH SYNOPSIS
+.IP \*(mp 7 
+[ \fB-abdms\fR ] [ \fB-q\fR \fIqueue-dir\fI ] [ \fB-t\fR \fItime\fR ] 
+[ \fB-u\fR \fIusers\fR ] [ \fB-w\fR \fIwidth\fR ]
+.SH DESCRIPTION
+Reports on problems in the sendmail queue. With no options this simply
+means listing messages that have been in the queue longer than a default
+period along with a summary of queue mail by host and status message.
+.SH OPTIONS
+.IP \fB-a\fR 14
+Report on all messages in the queue. This is equivalent to saying \fB-t\fR 0s.
+You may like this command so much that you use it as a replacement for
+\fBmqueue\fR. For example:
+.sp 1
+.RS
+.RS
+\fBalias mqueue cqueue -a\fR
+.RE
+.RE
+.IP \fB-b\fR 14
+Also report on bogus queue files. Those are files that
+have data files and no control files or vice versa.
+.IP \fB-d\fR
+Print a detailed report of mail messages that have been queued longer than
+the specified or default time. Information that is presented includes:
+.RS
+.RS
+.IB
+Sendmail queue identifier.
+.IB
+Date the message was first queued.
+.IB
+Sender of the message.
+.IB
+One or more recipients of the message.
+.IB
+An optional status of the message. This usually indicates why the message
+has not been delivered.
+.RE
+.RE
+.IP \fB-m\fR 14
+Mail off the results if any problems were found.
+Normaly results are printed to stdout. If this option
+is specified they are mailed to one or more users. Results
+are not printed to stdout in this case. Results are \fBonly\fR
+mailed if \*(mp found something wrong.
+.IP "\fB-q\fR \fIqueue-dir\fI"
+The sendmail mail queue directory. Default is \fB/usr/spool/mqueue\fR or
+some other site configured value.
+.IP "\fB-t\fR \fItime\fR"
+List messages that have been in the queue longer than
+\fItime\fR. Time should of the form:
+.sp 1
+.RS
+.RS
+(<number>(s|m|h|d))+
+.sp 1
+.RE
+.RE
+.RS 14
+The second portion of the above definition
+specifies seconds, minutes, hours, or
+days, respectfully. The first portion is the number of
+those units. There can be any number of such specifiers.
+As an example, 1h30m means 1 hour and 30 minutes.
+.sp 1
+The default is 2 hours.
+.RE
+.IP \fB-s\fR 14
+Print a summary of messages that have been queued longer than
+the specified or default time. Two separate types of summaries are printed.
+The first summarizes the queue messages by destination host. The host name
+is gleaned from the recipient addresses for each message.
+Thus the actual host names for this summary should be taken with a grain
+of salt since ruleset 0 has not been applied to the address the host was
+taken from nor were MX records consulted. It would be possible to add
+this; however, the execution time of the script would increase 
+dramatically. The second summary is by status message.
+.IP "\fB-u\fR \fIusers\fR"
+Specify list of users to send a mail report to other than
+the invoker. This option is only valid when \fB-m\fR has been
+specified. Multiple recipients may be separated by spaces.
+.IP "\fB-w\fR \fIwidth\fR"
+Specify the page width to which the output should tailored. \fIwidth\fR
+should be an integer representing some character position. The default is
+80 or some other site configured value. Output is folded neatly to match 
+\fIwidth\fR.
+.SH EXAMPLES
+.nf
+% \fBdate\fR
+Tue Jan 19 12:07:20 CST 1993
+X
+% \fBcqueue -t 21h45m -w 70\fR
+X
+Summary of messages in queue longer than 21:45:00 by destination 
+host:
+X
+X   Number of
+X   Messages    Destination Host
+X   ---------   ----------------
+X   2           cigseg.rtsg.mot.com
+X   1           mnesouth.corp.mot.com
+X   ---------
+X   3
+X
+Summary of messages in queue longer than 21:45:00 by status message:
+X
+X   Number of
+X   Messages    Status Message
+X   ---------   --------------
+X   1           Deferred: Connection refused by mnesouth.corp.mot.com
+X   2           Deferred: Host Name Lookup Failure
+X   ---------
+X   3
+X
+Detail of messages in queue longer than 21:45:00 sorted by creation 
+date:
+X
+X   ID:        AA20573
+X   Date:      02:09:27 PM 01/18/93
+X   Sender:    melrose-place-owner@ferkel.ucsb.edu
+X   Recipient: pbaker@cigseg.rtsg.mot.com
+X   Status:    Deferred: Host Name Lookup Failure
+X
+X   ID:        AA20757
+X   Date:      02:11:30 PM 01/18/93
+X   Sender:    90210-owner@ferkel.ucsb.edu
+X   Recipient: pbaker@cigseg.rtsg.mot.com
+X   Status:    Deferred: Host Name Lookup Failure
+X
+X   ID:        AA21110
+X   Date:      02:17:01 PM 01/18/93
+X   Sender:    rd_lap_wg@mdd.comm.mot.com
+X   Recipient: jim_mathis@mnesouth.corp.mot.com
+X   Status:    Deferred: Connection refused by mnesouth.corp.mot.com
+.fi
+.SH AUTHOR
+.nf
+Michael S. Muegel (mmuegel@mot.com)
+UNIX Applications Startup Group
+Corporate Information Office, Schaumburg, IL
+Motorola, Inc.
+.fi
+.SH COPYRIGHT NOTICE
+Copyright 1993, Motorola, Inc.
+.sp 1
+Permission to use, copy, modify and distribute without charge this
+software, documentation, etc. is granted, provided that this
+comment and the author's name is retained.  The author nor Motorola assume any
+responsibility for problems resulting from the use of this software.
+.SH SEE ALSO
+.nf
+\fBsendmail(8)\fR
+\fISendmail Installation and Operation Guide\fR.
+.fi
+SHAR_EOF
+chmod 0444 man/cqueue.1 ||
+echo 'restore of man/cqueue.1 failed'
+Wc_c="`wc -c < 'man/cqueue.1'`"
+test 5212 -eq "$Wc_c" ||
+	echo 'man/cqueue.1: original size 5212, current size' "$Wc_c"
+fi
+# ============= man/postclip.1 ==============
+if test -f 'man/postclip.1' -a X"$1" != X"-c"; then
+	echo 'x - skipping man/postclip.1 (File already exists)'
+else
+echo 'x - extracting man/postclip.1 (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'man/postclip.1' &&
+.TH POSTCLIP 1L
+\"
+\" mmuegel
+\" /usr/local/ustart/src/mail-tools/dist/foo/man/postclip.1,v 1.1 1993/07/28 08:08:25 mmuegel Exp
+\"
+.ds mp \fBpostclip\fR
+.SH NAME
+\*(mp - send only the headers to Postmaster
+.SH SYNOPSIS
+\*(mp [ \fB-v\fR ] [ \fIto\fR ... ]
+.SH DESCRIPTION
+\*(mp  will forward non-delivery reports to a postmaster after deleting the body
+of the message. This keeps bounced mail private and helps to avoid disk space problems. \*(mp tries its best to keep as much of the header trail as possible.
+Hopefully only the original body of the message will be filtered. Only messages
+that have a subject that begins with 'Returned mail:' are filtered. This
+ensures that other mail is not accidently mucked with. Finally, note that
+\fBsendmail\fR is used to deliver the message after it has been (possibly)
+filtered. All of the original headers will remain intact.
+.sp 1 
+You can use this with any \fBsendmail\fR by modifying the Postmaster alias.
+If you use IDA \fBsendmail\fR you could add the following to <machine>.m4:
+.sp 1
+.RS
+define(POSTMASTERBOUNCE, mailer-errors)
+.RE
+.sp 1
+In the aliases file, add a line similar to the following:
+.sp 1
+.RS
+mailer-errors: "|/usr/local/bin/postclip postmaster"
+.RE
+.SH OPTIONS
+.IP \fB-v\fR
+Be verbose about delivery. Probably only useful when debugging \*(mp.
+.IP \fIto\fR
+A list of one or more e-mail ids to send the modified
+Postmaster messages to. If none are specified postmaster
+is used.
+.SH AUTHOR
+.nf
+Michael S. Muegel (mmuegel@mot.com)
+UNIX Applications Startup Group
+Corporate Information Office, Schaumburg, IL
+Motorola, Inc.
+.fi
+.SH CREDITS
+The original idea to filter Postmaster mail was taken from a script by 
+Christopher Davis <ckd@eff.org>.
+.SH COPYRIGHT NOTICE
+Copyright 1992, Motorola, Inc.
+.sp 1
+Permission to use, copy, modify and distribute without charge this
+software, documentation, etc. is granted, provided that this
+comment and the author's name is retained.  The author nor Motorola assume any
+responsibility for problems resulting from the use of this software.
+.SH SEE ALSO
+.nf
+\fBsendmail(8)\fR
+.fi
+SHAR_EOF
+chmod 0444 man/postclip.1 ||
+echo 'restore of man/postclip.1 failed'
+Wc_c="`wc -c < 'man/postclip.1'`"
+test 2078 -eq "$Wc_c" ||
+	echo 'man/postclip.1: original size 2078, current size' "$Wc_c"
+fi
+# ============= src/cqueue ==============
+if test ! -d 'src'; then
+    echo 'x - creating directory src'
+    mkdir 'src'
+fi
+if test -f 'src/cqueue' -a X"$1" != X"-c"; then
+	echo 'x - skipping src/cqueue (File already exists)'
+else
+echo 'x - extracting src/cqueue (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'src/cqueue' &&
+#!/usr/local/ustart/bin/suidperl
+X
+# NAME
+#    cqueue - check sendmail queue for problems
+#
+# SYNOPSIS
+#    Type cqueue -usage
+#
+# AUTHOR
+#    Michael S. Muegel <mmuegel@mot.com>
+#
+# RCS INFORMATION
+#    mmuegel
+#    /usr/local/ustart/src/mail-tools/dist/foo/src/cqueue,v 1.1 1993/07/28 08:09:02 mmuegel Exp
+X
+# So that date.pl does not yell (Domain/OS version does a ``)
+$ENV{'PATH'}    = "";
+X
+# A better getopts routine
+require "newgetopts.pl";
+require "timespec.pl";
+require "mail.pl";
+require "date.pl";
+require "mqueue.pl";
+require "strings1.pl";
+require "elapsed.pl";
+X
+($Script_Name = $0) =~ s/.*\///;
+X         
+# Some defaults you may want to change
+$DEF_TIME	= "2h";
+$DEF_QUEUE      = "/usr/spool/mqueue";
+$DEF_COLUMNS	= 80;
+$DATE_FORMAT    = "%r %D";
+X
+# Constants that probably should not be changed
+$USAGE          = "Usage: $Script_Name [ -abdms ] [ -q queue-dir ] [ -t time ] [ -u user ] [ -w width ]\n";
+$VERSION        = "${Script_Name} by mmuegel; 1.1 of 1993/07/28 08:09:02";
+$SWITCHES       = "abdmst:u:q:w:";
+$SPLIT_EXPR	= '\s,\.@!%:';
+$ADDR_PART_EXPR	= '[^!@%]+';
+X
+# Let getopts parse for switches
+$Status = &New_Getopts ($SWITCHES, $USAGE);
+exit (0) if ($Status == -1);
+exit (1) if (! $Status);
+X
+# Check args 
+die "${Script_Name}: -u only valid with -m\n" if (($opt_u) && (! $opt_m));
+die "${Script_Name}: -a not valid with -t option\n" if ($opt_a && $opt_t);
+$opt_u = getlogin || (getpwuid ($<))[0] || $ENV{"USER"} || die "${Script_Name}: can not determine who you are!\n" if (! $opt_u);
+X
+# Set defaults
+$opt_t = "0s" if ($opt_a);
+$opt_t = $DEF_TIME if ($opt_t eq "");
+$opt_w = $DEF_COLUMNS if ($opt_w eq "");
+$opt_q = $DEF_QUEUE if ($opt_q eq "");
+$opt_s = $opt_d = 1 if (! ($opt_s || $opt_d));
+X
+# Untaint the users to mail to
+$opt_u =~ /^(.*)$/;
+$Users = $1;
+X
+# Convert time option to seconds and seconds to elapsed form
+die "${Script_Name}: $Msg\n" if (! (($Status, $Msg, $Seconds) = &Time_Spec_To_Seconds ($opt_t))[0]);
+$Elapsed = &Seconds_To_Elapsed ($Seconds, 1);
+$Time_Info = " longer than $Elapsed" if ($Seconds);
+X
+# Get the current time
+$Current_Time = time;
+$Current_Date = &date ($Current_Time, $DATE_FORMAT);
+X
+($Status, $Msg, @Queue_IDs) = &Get_Queue_IDs ($opt_q, 1, @Missing_Control_IDs,
+X   @Missing_Data_IDs);
+die "$Script_Name: $Msg\n" if (! $Status);
+X
+# Yell about missing data/control files?
+if ($opt_b)
+{
+X
+X   $Report = "\nMessages missing control files:\n\n   " . 
+X             join ("\n   ", @Missing_Control_IDs) . 
+X             "\n" 
+X      if (@Missing_Control_IDs);
+X
+X   $Report .= "\nMessages missing data files:\n\n   " . 
+X              join ("\n   ", @Missing_Data_IDs) . 
+X              "\n"
+X      if (@Missing_Data_IDs);
+};
+X
+# See if any mail messages are older than $Seconds
+foreach $Queue_ID (@Queue_IDs)
+{
+X   # Get lots of info about this sendmail message via the control file
+X   ($Status, $Msg) = &Parse_Control_File ($opt_q, $Queue_ID, *Sender, 
+X      *Recipients, *Errors_To, *Creation_Time, *Priority, *Status_Message, 
+X      *Headers);
+X   next if ($Status == -1);
+X   if (! $Status)
+X   {
+X      warn "$Script_Name: $Queue_ID: $Msg\n";
+X      next;
+X   };
+X
+X   # Report on message if it is older than $Seconds
+X   if ($Current_Time - $Creation_Time >= $Seconds)
+X   {
+X      # Build summary by host information. Keep track of each host destination
+X      # encountered.
+X      if ($opt_s)
+X      {
+X         %Host_Map = ();
+X         foreach (@Recipients)
+X         {
+X	    if ((/@($ADDR_PART_EXPR)$/) || (/($ADDR_PART_EXPR)!$ADDR_PART_EXPR$/))
+X            {
+X	       ($Host = $1) =~ tr/A-Z/a-z/;
+X               $Host_Map {$Host} = 1;
+X	    }
+X	    else
+X	    {
+X	       warn "$Script_Name: could not find host part from $_; contact author\n";
+X	    };
+X         };
+X
+X         # For each unique target host add to its stats
+X         grep ($Host_Queued {$_}++, keys (%Host_Map));
+X
+X         # Build summary by message information.
+X         $Message_Queued {$Status_Message}++ if ($Status_Message);
+X      };
+X
+X      # Build long report information for this creation time (there may be
+X      # more than one message created at the same time)
+X      if ($opt_d)
+X      {
+X         $Creation_Date = &date ($Creation_Time, $DATE_FORMAT);
+X         $Recipient_Info = &Format_Text_Block (join (", ", @Recipients), 
+X	    "   Recipient: ", 1, 0, $opt_w, $SPLIT_EXPR);
+X         $Time_To_Report {$Creation_Time} .= <<"EOS";
+X
+X   ID:        $Queue_ID
+X   Date:      $Creation_Date
+X   Sender:    $Sender
+$Recipient_Info
+EOS
+X
+X         # Add the status message if available to long report
+X         if ($Status_Message)
+X         {
+X	    $Time_To_Report {$Creation_Time} .= &Format_Text_Block ($Status_Message, 
+X   	       "   Status:    ", 1, 0, $opt_w, $SPLIT_EXPR) . "\n";
+X         };
+X      };
+X   };
+X
+};
+X
+# Add the summary report by target host?
+if ($opt_s)
+{
+X   foreach $Host (sort (keys (%Host_Queued)))
+X   {
+X      $Host_Report .= &Format_Text_Block ($Host, 
+X         sprintf ("   %-9d   ", $Host_Queued{$Host}), 1, 0, $opt_w,
+X         $SPLIT_EXPR) . "\n";
+X      $Num_Hosts += $Host_Queued{$Host};
+X   };
+X   if ($Host_Report)
+X   {
+X      chop ($Host_Report);
+X      $Report .= &Format_Text_Block("\nSummary of messages in queue$Time_Info by destination host:\n", "", 0, 0, $opt_w);
+X
+X      $Report .= <<"EOS";
+X
+X   Number of
+X   Messages    Destination Host
+X   ---------   ----------------
+$Host_Report
+X   ---------
+X   $Num_Hosts
+EOS
+X   };
+};
+X
+# Add the summary by message report?
+if ($opt_s)
+{
+X   foreach $Message (sort (keys (%Message_Queued)))
+X   {
+X      $Message_Report .= &Format_Text_Block ($Message, 
+X         sprintf ("   %-9d   ", $Message_Queued{$Message}), 1, 0, $opt_w, 
+X         $SPLIT_EXPR) . "\n";
+X      $Num_Messages += $Message_Queued{$Message};
+X   };
+X   if ($Message_Report)
+X   {
+X      chop ($Message_Report);
+X      $Report .= &Format_Text_Block ("\nSummary of messages in queue$Time_Info by status message:\n", "", 0, 0, $opt_w);
+X
+X      $Report .= <<"EOS";
+X
+X   Number of
+X   Messages    Status Message
+X   ---------   --------------
+$Message_Report
+X   ---------
+X   $Num_Messages
+EOS
+X   };
+};
+X
+# Add the detailed message reports?
+if ($opt_d)
+{
+X   foreach $Time (sort { $a <=> $b} (keys (%Time_To_Report)))
+X   {
+X      $Report .= &Format_Text_Block ("\nDetail of messages in queue$Time_Info sorted by creation date:\n","", 0, 0, $opt_w) if (! $Detailed_Header++);
+X      $Report .= $Time_To_Report {$Time};
+X   };
+};
+X
+# Now mail or print the report
+if ($Report)
+{
+X   $Report .= "\n";
+X   if ($opt_m)
+X   {
+X      ($Status, $Msg) = &Send_Mail ($Users, "sendmail queue report for $Current_Date", $Report, 0);
+X      die "${Script_Name}: $Msg" if (! $Status);
+X   }
+X
+X   else
+X   {
+X      print $Report;
+X   };
+X
+};
+X
+# I am outta here...
+exit (0);
+SHAR_EOF
+chmod 0555 src/cqueue ||
+echo 'restore of src/cqueue failed'
+Wc_c="`wc -c < 'src/cqueue'`"
+test 6647 -eq "$Wc_c" ||
+	echo 'src/cqueue: original size 6647, current size' "$Wc_c"
+fi
+# ============= src/postclip ==============
+if test -f 'src/postclip' -a X"$1" != X"-c"; then
+	echo 'x - skipping src/postclip (File already exists)'
+else
+echo 'x - extracting src/postclip (Text)'
+sed 's/^X//' << 'SHAR_EOF' > 'src/postclip' &&
+#!/usr/local/bin/perl
+X
+# NAME
+#    postclip - send only the headers to Postmaster
+#
+# SYNOPSIS
+#    postclip [ -v ] [ to ... ]
+#
+# AUTHOR
+#    Michael S. Muegel <mmuegel@mot.com>
+#
+# RCS INFORMATION
+#    /usr/local/ustart/src/mail-tools/dist/foo/src/postclip,v
+#    1.1 of 1993/07/28 08:09:02
+X
+# We use this to send off the mail
+require "newgetopts.pl";
+require "mail.pl";
+X
+# Get the basename of the script
+($Script_Name = $0) =~ s/.*\///;
+X
+# Some famous constants
+$USAGE          = "Usage: $Script_Name [ -v ] [ to ... ]\n";
+$VERSION        = "${Script_Name} by mmuegel; 1.1 of 1993/07/28 08:09:02";
+$SWITCHES       = "v";
+X
+# Let getopts parse for switches
+$Status = &New_Getopts ($SWITCHES, $USAGE);
+exit (0) if ($Status == -1);
+exit (1) if (! $Status);
+X
+# Who should we send the modified mail to?
+@ARGV = ("postmaster") if (! @ARGV);
+$Users = join (" ", @ARGV);
+@ARGV = ();
+X
+# Suck in the original header and save a few interesting lines
+while (<>) 
+{
+X    $Buffer .= $_ if (! /^From /);
+X    $Subject = $1 if (/^Subject:\s+(.*)$/);
+X    $From = $1 if (/^From:\s+(.*)$/);
+X    last if (/^$/);
+};
+X
+# Do not filter the message unless it has a subject and the subject indicates
+# it is an NDN
+if ($Subject && ($Subject =~ /^returned mail/i))
+{
+X   # Slurp input by paragraph. Keep track of the last time we saw what
+X   # appeared to be NDN text. We keep this.
+X   $/ = "\n\n";
+X   $* = 1;
+X   while (<>)
+X   {
+X      push (@Paragraphs, $_);
+X      $Last_Error_Para = $#Paragraphs 
+X	 if (/unsent message follows/i || /was not delivered because/);
+X   };
+X
+X   # Now save the NDN text into $Buffer
+X   $Buffer .= join ("", @Paragraphs [0..$Last_Error_Para]);
+}
+X
+else
+{
+X   undef $/;
+X   $Buffer .= <>;
+};
+X
+# Send off the (possibly) modified mail
+($Status, $Msg) = &Send_Mail ($Users, "", $Buffer, 0, $opt_v, 1);
+die "$Script_Name: $Msg\n" if (! $Status);
+SHAR_EOF
+chmod 0555 src/postclip ||
+echo 'restore of src/postclip failed'
+Wc_c="`wc -c < 'src/postclip'`"
+test 1836 -eq "$Wc_c" ||
+	echo 'src/postclip: original size 1836, current size' "$Wc_c"
+fi
+exit 0
+
+--
++----------------------------------------------------------------------------+
+| Michael S. Muegel                    | Internet E-Mail:    mmuegel@mot.com |
+| UNIX Applications Startup Group      | Moto Dist E-Mail:   X10090          |
+| Corporate Information Office         | Voice:              (708) 576-0507  |
+| Motorola                             | Fax:                (708) 576-4153  |
++----------------------------------------------------------------------------+
+
+      "I'm disturbed, I'm depressed, I'm inadequate -- I've got it all!"
+	  -- George from _Seinfeld_
diff --git a/contrib/oldbind.compat.c b/contrib/oldbind.compat.c
new file mode 100644
index 0000000..1621a7b
--- /dev/null
+++ b/contrib/oldbind.compat.c
@@ -0,0 +1,79 @@
+/*
+**  OLDBIND.COMPAT.C
+**
+**	Very old systems do not have res_query(), res_querydomain() or
+**	res_search(), so emulate them here.
+**
+**	You really ought to be upgrading to a newer version of BIND
+**	(4.8.2 or later) rather than be using this.
+**
+**	J.R. Oldroyd <jr@inset.com>
+*/
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <resolv.h>
+
+typedef union
+{
+	HEADER	qb1;
+	char	qb2[PACKETSZ];
+} querybuf;
+
+res_query(dname, class, type, data, datalen)
+	char *		dname;
+	int		class;
+	int 		type;
+	char *		data;
+	int		datalen;
+{
+	int		n;
+	querybuf	buf;
+
+	n = res_mkquery(QUERY, dname, class, type, (char *) NULL, 0,
+		NULL, (char *) &buf, sizeof buf);
+	n = res_send((char *)&buf, n, data, datalen);
+
+	return n;
+}
+
+res_querydomain(host, dname, class, type, data, datalen)
+	char *		host;
+	char *		dname;
+	int		class;
+	int		type;
+	char *		data;
+	int		datalen;
+{
+	int		n;
+	querybuf	buf;
+	char		dbuf[256];
+
+	strcpy(dbuf, host);
+	if (dbuf[strlen(dbuf)-1] != '.')
+		strcat(dbuf, ".");
+	strcat(dbuf, dname);
+	n = res_mkquery(QUERY, dbuf, class, type, (char *) NULL, 0,
+		NULL, (char *)&buf, sizeof buf);
+	n = res_send((char *) &buf, n, data, datalen);
+
+	return n;
+}
+
+res_search(dname, class, type, data, datalen)
+	char *		dname;
+	int		class;
+	int		type;
+	char *		data;
+	int		datalen;
+{
+	int		n;
+	querybuf	buf;
+
+	n = res_mkquery(QUERY, dname, class, type, (char *)NULL, 0,
+		NULL, (char *) &buf, sizeof buf);
+	n = res_send((char *) &buf, n, data, datalen);
+
+	return n;
+}
diff --git a/contrib/passwd-to-alias.pl b/contrib/passwd-to-alias.pl
new file mode 100755
index 0000000..05a51b9
--- /dev/null
+++ b/contrib/passwd-to-alias.pl
@@ -0,0 +1,30 @@
+#!/bin/perl
+
+#
+#  Convert GECOS information in password files to alias syntax.
+#
+#  Contributed by Kari E. Hurtta <Kari.Hurtta@ozone.fmi.fi>
+#
+
+print "# Generated from passwd by $0\n";
+
+while (@a = getpwent) {
+    ($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$dir,$shell) = @a;
+
+    ($fullname = $gcos) =~ s/,.*$//;
+
+    if (!-d $dir || !-x $shell) {
+	print "$name: root\n";
+    }
+
+    $fullname =~ s/\.*[ _]+\.*/./g;
+    $fullname =~ tr [åäöÅÄÖé] [aaoAAOe];  # <hakan@af.lu.se> 1997-06-15
+    if ($fullname =~ /^[a-zA-Z][a-zA-Z-]+(\.[a-zA-Z][a-zA-Z-]+)+$/) {  
+#   if ($fullname =~ /^[a-zA-Z]+(\.[a-zA-Z]+)+$/) {    # Kari E. Hurtta
+	print "$fullname: $name\n";
+    } else {
+	print "# $fullname: $name\n";
+    }
+};
+
+endpwent;
diff --git a/contrib/re-mqueue.pl b/contrib/re-mqueue.pl
new file mode 100644
index 0000000..61aef43
--- /dev/null
+++ b/contrib/re-mqueue.pl
@@ -0,0 +1,203 @@
+#!/usr/bin/perl
+#
+# re-mqueue -- requeue messages from queueA to queueB based on age.
+#
+#	Contributed by Paul Pomes <ppomes@Qualcomm.COM>.
+#		http://www.qualcomm.com/~ppomes/
+#
+# Usage: re-mqueue [-d] queueA queueB seconds
+#
+#  -d		enable debugging
+#  queueA	source directory
+#  queueB	destination directory
+#  seconds	select files older than this number of seconds 
+#
+# Example: re-mqueue /var/spool/mqueue /var/spool/mqueue2 2700
+#
+# Moves the qf* and df* files for a message from /var/spool/mqueue to
+# /var/spool/mqueue2 if the df* file is over 2700 seconds old.
+#
+# The qf* file can't be used for age checking as it's partially re-written
+# with the results of the last queue run.
+#
+# Rationale: With a limited number of sendmail processes allowed to run,
+# messages that can't be delivered immediately slow down the ones that can.
+# This becomes especially important when messages are being queued instead
+# of delivered right away, or when the queue becomes excessively deep.
+# By putting messages that have already failed one or more delivery attempts
+# into another queue, the primary queue can be kept small and fast.
+#
+# On postoffice.cso.uiuc.edu, the primary sendmail daemon runs the queue
+# every thirty minutes.  Messages over 45 minutues old are moved to
+# /var/spool/mqueue2 where sendmail runs every hour.  Messages more than
+# 3.25 hours old are moved to /var/spool/mqueue3 where sendmail runs every
+# four hours.  Messages more than a day old are moved to /var/spool/mqueue4
+# where sendmail runs three times a day.  The idea is that a message is
+# tried at least twice in the first three queues before being moved to the
+# old-age ghetto.
+#
+# (Each must be re-formed into a single line before using in crontab)
+#
+# 08 * * * *	/usr/local/libexec/re-mqueue /var/spool/mqueue ##						/var/spool/mqueue2 2700
+# 11 * * * *	/usr/lib/sendmail -oQ/var/spool/mqueue2 -q > ##							> /var/log/mqueue2 2>&1
+# 38 * * * *	/usr/local/libexec/re-mqueue /var/spool/mqueue2
+#					/var/spool/mqueue3 11700
+# 41 1,5,9,13,17,21 * * * /usr/lib/sendmail -oQ/var/spool/mqueue3 -q ##							> /var/log/mqueue3 2>&1
+# 48 * * * *	/usr/local/libexec/re-mqueue /var/spool/mqueue3
+#					/var/spool/mqueue4 100000
+#53 3,11,19 * * * /usr/lib/sendmail -oQ/var/spool/mqueue4 -q > ##							> /var/log/mqueue4 2>&1
+#
+#
+# N.B., the moves are done with link().  This has two effects: 1) the mqueue*
+# directories must all be on the same filesystem, and 2) the file modification
+# times are not changed.  All times must be cumulative from when the df*
+# file was created.
+#
+# Copyright (c) 1995 University of Illinois Board of Trustees and Paul Pomes
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#       This product includes software developed by the University of
+#       Illinois at Urbana and their contributors.
+# 4. Neither the name of the University nor the names of their contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE TRUSTEES AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE TRUSTEES OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)$Id: re-mqueue,v 1.3 1995/05/25 18:14:53 p-pomes Exp $
+
+require "syslog.pl";
+
+$LOCK_EX = 2;
+$LOCK_NB = 4;
+$LOCK_UN = 8;
+
+# Count arguments, exit if wrong in any way.
+die "Usage: $0 [-d] queueA queueB seconds\n" if ($#ARGV < 2);
+
+while ($_ = $ARGV[0], /^-/) {
+    shift;
+    last if /^--$/;
+    /^-d/ && $debug++;
+}
+
+$queueA = shift;
+$queueB = shift;
+$age = shift;
+
+die "$0: $queueA not a directory\n" if (! -d $queueA);
+die "$0: $queueB not a directory\n" if (! -d $queueB);
+die "$0: $age isn't a valid number of seconds for age\n" if ($age =~ /\D/);
+
+# chdir to $queueA and read the directory.  When a df* file is found, stat it.
+# If it's older than $age, lock the corresponding qf* file.  If the lock
+# fails, give up and move on.  Once the lock is obtained, verify that files
+# of the same name *don't* already exist in $queueB and move on if they do.
+# Otherwise re-link the qf* and df* files into $queueB then release the lock.
+
+chdir "$queueA" || die "$0: can't cd to $queueA: $!\n";
+opendir (QA, ".") || die "$0: can't open directory $queueA for reading: $!\n";
+@dfiles = grep(/^df/, readdir(QA));
+$now = time();
+($program = $0) =~ s,.*/,,;
+&openlog($program, 'pid', 'mail');
+
+# Loop through the dfiles
+while ($dfile = pop(@dfiles)) {
+    print "Checking $dfile\n" if ($debug);
+    ($qfile = $dfile) =~ s/^d/q/;
+    ($mfile = $dfile) =~ s/^df//;
+    if (! -e $dfile || -z $dfile) {
+	print "$dfile is gone or zero bytes - skipping\n" if ($debug);
+	next;
+    }
+    if (! -e $qfile || -z $qfile) {
+	print "$qfile is gone or zero bytes - skipping\n" if ($debug);
+	next;
+    }
+
+    $mtime = $now;
+    ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
+     $atime,$mtime,$ctime,$blksize,$blocks) = stat($dfile);
+
+    # Compare timestamps
+    if (($mtime + $age) > $now) {
+	printf ("%s is %d seconds old - skipping\n", $dfile, $now-$mtime) if ($debug);
+	next;
+    }
+
+    # See if files of the same name already exist in $queueB
+    if (-e "$queueB/$dfile") {
+	print "$queueb/$dfile already exists - skipping\n" if ($debug);
+	next;
+    }
+    if (-e "$queueB/$qfile") {
+	print "$queueb/$qfile already exists - skipping\n" if ($debug);
+	next;
+    }
+
+    # Try and lock qf* file
+    unless (open(QF, ">>$qfile")) {
+	print "$qfile: $!\n" if ($debug);
+	next;
+    }
+    $retval = flock(QF, $LOCK_EX|$LOCK_NB) || ($retval = -1);
+    if ($retval == -1) {
+	print "$qfile already flock()ed - skipping\n" if ($debug);
+	close(QF);
+	next;
+    }
+    print "$qfile now flock()ed\n" if ($debug);
+
+    # Show time!  Do the link()s
+    if (link("$dfile", "$queueB/$dfile") == 0) {
+	&syslog('err', 'link(%s, %s/%s): %m', $dfile, $queueB, $dfile);
+	print STDERR "$0: link($dfile, $queueB/$dfile): $!\n";
+	exit (1);
+    }
+    if (link("$qfile", "$queueB/$qfile") == 0) {
+	&syslog('err', 'link(%s, %s/%s): %m', $qfile, $queueB, $qfile);
+	print STDERR "$0: link($qfile, $queueB/$qfile): $!\n";
+	unlink("$queueB/$dfile");
+	exit (1);
+    }
+
+    # Links created successfully.  Unlink the original files, release the
+    # lock, and close the file.
+    print "links ok\n" if ($debug);
+    if (unlink($qfile) == 0) {
+	&syslog('err', 'unlink(%s): %m', $qfile);
+	print STDERR "$0: unlink($qfile): $!\n";
+	exit (1);
+    }
+    if (unlink($dfile) == 0) {
+	&syslog('err', 'unlink(%s): %m', $dfile);
+	print STDERR "$0: unlink($dfile): $!\n";
+	exit (1);
+    }
+    flock(QF, $LOCK_UN);
+    close(QF);
+    &syslog('info', '%s moved to %s', $mfile, $queueB);
+    print "Done with $dfile $qfile\n\n" if ($debug);
+}
+exit 0;
diff --git a/contrib/rmail.oldsys.patch b/contrib/rmail.oldsys.patch
new file mode 100644
index 0000000..856fcf1
--- /dev/null
+++ b/contrib/rmail.oldsys.patch
@@ -0,0 +1,108 @@
+From: Bill Gianopoulos <wag@sccux1.msd.ray.com>
+Message-Id: <199405191527.LAA03463@sccux1.msd.ray.com>
+Subject: Patch to rmail to elliminate need for snprintf
+To: sendmail@CS.Berkeley.EDU
+Date: Thu, 19 May 1994 11:27:16 -0400 (EDT)
+
+I have written the following patch to rmail which removes the requirement
+for snprintf while maintaining the protection from buffer overruns.  It also
+fixes it to compile with compilers which don't understand ANSI function
+prototypes.  Perhaps this should be included in the next version?
+
+*** rmail/rmail.c.orig	Mon May 31 18:10:44 1993
+--- rmail/rmail.c	Thu May 19 11:04:50 1994
+***************
+*** 78,86 ****
+--- 78,109 ----
+  #include <sysexits.h>
+  #include <unistd.h>
+  
++ #ifdef __STDC__
+  void err __P((int, const char *, ...));
+  void usage __P((void));
++ #else
++ void err ();
++ void usage ();
++ #endif
+  
++ #define strdup(s)	strcpy(xalloc(strlen(s) + 1), s)
++ 
++ char *
++ xalloc(sz)
++ 	register int sz;
++ {
++ 	register char *p;
++ 
++ 	/* some systems can't handle size zero mallocs */
++ 	if (sz <= 0)
++ 		sz = 1;
++ 
++ 	p = malloc((unsigned) sz);
++ 	if (p == NULL)
++ 		err(EX_UNAVAILABLE, "Out of memory!!");
++ 	return (p);
++ }
++ 
+  int
+  main(argc, argv)
+  	int argc;
+***************
+*** 230,250 ****
+  	args[i++] = "-oi";		/* Ignore '.' on a line by itself. */
+  
+  	if (from_sys != NULL) {		/* Set sender's host name. */
+! 		if (strchr(from_sys, '.') == NULL)
+! 			(void)snprintf(buf, sizeof(buf),
+  			    "-oMs%s.%s", from_sys, domain);
+! 		else
+! 			(void)snprintf(buf, sizeof(buf), "-oMs%s", from_sys);
+  		if ((args[i++] = strdup(buf)) == NULL)
+  			 err(EX_TEMPFAIL, NULL);
+  	}
+  					/* Set protocol used. */
+! 	(void)snprintf(buf, sizeof(buf), "-oMr%s", domain);
+  	if ((args[i++] = strdup(buf)) == NULL)
+  		err(EX_TEMPFAIL, NULL);
+  
+  					/* Set name of ``from'' person. */
+! 	(void)snprintf(buf, sizeof(buf), "-f%s%s",
+  	    from_path ? from_path : "", from_user);
+  	if ((args[i++] = strdup(buf)) == NULL)
+  		err(EX_TEMPFAIL, NULL);
+--- 253,285 ----
+  	args[i++] = "-oi";		/* Ignore '.' on a line by itself. */
+  
+  	if (from_sys != NULL) {		/* Set sender's host name. */
+! 		if (strchr(from_sys, '.') == NULL) {
+! 			if ((strlen(from_sys) + strlen(domain) + 6)
+! 			    > sizeof(buf))
+! 				err(EX_DATAERR, "sender hostname too long");
+! 			(void)sprintf(buf,
+  			    "-oMs%s.%s", from_sys, domain);
+! 		}
+! 		else {
+! 			if ((strlen(from_sys) + 5) > sizeof(buf))
+! 				err(EX_DATAERR ,"sender hostname too long");
+! 			(void)sprintf(buf, "-oMs%s", from_sys);
+! 		}
+  		if ((args[i++] = strdup(buf)) == NULL)
+  			 err(EX_TEMPFAIL, NULL);
+  	}
+  					/* Set protocol used. */
+! 	if ((strlen(domain) + 5) > sizeof(buf))
+! 		err(EX_DATAERR, "protocol name too long");
+! 	(void)sprintf(buf, "-oMr%s", domain);
+  	if ((args[i++] = strdup(buf)) == NULL)
+  		err(EX_TEMPFAIL, NULL);
+  
+  					/* Set name of ``from'' person. */
+! 	if (((from_path ? strlen(from_path) : 0) + strlen(from_user) + 3) 
+! 	    > sizeof(buf))
+! 		err(EX_DATAERR, "from address too long");
+! 	(void)sprintf(buf, "-f%s%s",
+  	    from_path ? from_path : "", from_user);
+  	if ((args[i++] = strdup(buf)) == NULL)
+  		err(EX_TEMPFAIL, NULL);
+-- 
+William A. Gianopoulos; Raytheon Missile Systems Division
+wag@sccux1.msd.ray.com
diff --git a/doc/changes/Makefile b/doc/changes/Makefile
new file mode 100644
index 0000000..46447c2
--- /dev/null
+++ b/doc/changes/Makefile
@@ -0,0 +1,13 @@
+#	@(#)Makefile	8.1 (Berkeley) 4/13/94
+
+DIR=	smm/09.sendmail
+SRCS=	changes.me
+MACROS=	-me
+
+all: changes.ps
+
+changes.ps: ${SRCS}
+	rm -f ${.TARGET}
+	${PIC} ${SRCS} | ${ROFF} > ${.TARGET}
+
+.include <bsd.doc.mk>
diff --git a/doc/changes/changes.me b/doc/changes/changes.me
new file mode 100644
index 0000000..ee838bd
--- /dev/null
+++ b/doc/changes/changes.me
@@ -0,0 +1,997 @@
+.\" Copyright (c) 1994 Eric P. Allman
+.\" Copyright (c) 1988, 1994
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)changes.me	8.2 (Berkeley) 5/3/95
+.\"
+.\"	ditroff -me -Pxx changes.me
+.eh '%''Changes in Sendmail Version 8'
+.oh 'Changes in Sendmail Version 8''%'
+.nr si 3n
+.if n .ls 2
+.+c
+.(l C
+.sz 14
+Changes in Sendmail Version 8*
+.sz
+.sp
+Eric Allman
+.sp 0.5
+.i
+University of California, Berkeley
+Mammoth Project
+.)l
+.(f
+*An earlier version of this paper was printed in the
+Proceedings of the 1994 AUUG Queensland Summer Technical Conference,
+Gateway Hotel, Brisbane, March 1994.
+.)f
+.sp
+.(l F
+.ce
+ABSTRACT
+.sp \n(psu
+Version 8 of
+.i sendmail
+includes a number of major changes from previous versions.
+This paper gives a very short history of
+.i sendmail ,
+a summary of the major differences between version 5
+(the last publically available version)
+and version 8,
+and some discussion of future directions.
+.)l
+.sp 2
+.pp
+In 1987, the author stopped major work on
+.i sendmail
+due to other time committments,
+only to return to active work in 1991.
+This paper explores why work resumed
+and what changes have been made.
+.pp
+Section 1 gives a short history of
+.i sendmail
+through version 5 and the motivation behind working on version 8.
+Section 2 has
+a rather detailed description of what has changed
+between version 5 and version 8.
+The paper finishes off with some thoughts
+about what still needs to be done.
+.sh 1 "HISTORY"
+.pp
+As discussed elsewhere,
+[Allman83a, Allman83b, Allman&Amos85]
+sendmail has existed in various forms since 1980.
+It was released under the name
+.i delivermail
+in 4BSD and 4.1BSD, and as
+.i sendmail
+in 4.2BSD.
+.\"4.0BSD	delivermail 1.10
+.\"4.1BSD	delivermail 1.10
+.\"4.2BSD	sendmail 4.12
+.\"4.3BSD	sendmail 5.52
+It quickly became the dominant mail system for networked UNIX systems.
+.pp
+Prior the release of 4.3BSD in November 1986,
+the author had left the University for private industry,
+but continued to do some work on
+.i sendmail
+with activity slowly trailing off
+until effectively stopping after February 1987.
+There was minimal support done by many people for several years,
+until July of 1991 when the original author,
+who had returned the University,
+started active work on it again.
+.pp
+There were several reasons for renewed work on
+.i sendmail .
+There was a desire at Berkeley to convert to a subdomained structure
+so that individuals were identified by their subdomain
+rather than by their individual workstation;
+although possible in the old code, there were some problems,
+and the author was the obvious person to address them.
+The Computer Systems Research Group (CSRG),
+the group that produced the Berkeley Software Distributions,
+was working on 4.4BSD,
+and wanted an update to the mail system.
+Bryan Costales was working on a book on
+.i sendmail
+that was being reviewed by the author,
+which encouraged him to make some revisions.
+And the author wanted to try to unify some of the disparate versions of
+.i sendmail
+that had been permitted to proliferate.
+.pp
+During the 1987\-91 fallow period,
+many vendors and outside volunteers
+had produced variants of
+.i sendmail .
+Perhaps the best known is the IDA version
+[IDA87].
+Originally intended to be a new set of configuration files,
+IDA expanded into a fairly large set of patches for the code.
+Originally produced in Sweden,
+IDA development passed to the University of Illinois,
+and was widely used by the fairly large set of people
+who prefer to get and compile their own source code
+rather than use vendor-supplied binaries.
+.pp
+In about the same time frame,
+attempts were made to clean up and extend the Simple Mail Transport Protocol
+(SMTP)
+[RFC821].
+This involved clarifications of some ambiguities in the protocol,
+and correction of some problem areas
+[RFC1123],
+as well as extensions for additional functionality
+(dubbed Extended Simple Mail Transport Protocol, or ESMTP)
+[RFC1425, RFC1426, RFC1427]
+and a richer set of semantics in the body of messages
+(the Multipurpose Internet Mail Extensions, a.k.a. MIME)
+[RFC1521, RFC1344].
+Neither the IDA group nor most vendors
+were modifying
+.i sendmail
+to conform to these new standards.
+It seemed clear that these were ``good things''
+that should be encouraged.
+However, since no one was working on a publically available version of
+.i sendmail
+with these updates,
+they were unlikely to be widely deployed any time in the near future.
+.pp
+There are, of course, other mail transport agents available,
+such as
+.i MMDF
+.\"[ref],
+.i zmailer
+.\"[ref],
+.i smail
+.\"[ref],
+and
+.i PP
+.\"[ref].
+However, none of these seemed to be gaining the prominence of
+.i sendmail ;
+it appeared that most companies would not convert to another
+mail transport agent any time in the forseeable future.
+However, they might be persuaded to convert to a newer version of
+.i sendmail .
+.pp
+All of these convinced the author
+to work on a updated version of
+.i sendmail
+for public distribution.
+.pp
+The new version of
+.i sendmail
+is referred to as version eight (V8).
+Versions six and seven were skipped
+because of an agreement
+that all files in 4.4BSD would be numbered as
+.q 8.1 .
+Rather than have an external version number
+that differed from the file version numbers,
+.i sendmail
+just jumped directly to V8.
+.sh 1 "CHANGES IN VERSION EIGHT"
+.pp
+The following is a summary of the changes between the last commonly
+available version of sendmail from Berkeley (5.67) and the latest
+version (8.6.6).
+.pp
+Many of these are ideas that had been tried in IDA,
+but many of them were generalized in V8.
+.sh 2 "Performance Enhancements"
+.pp
+Instead of closing SMTP connections immediately, open connections are
+cached for possible future use.  There is a limit to the number of
+simultaneous open connections and the idle time of any individual
+connection.
+.pp
+This is of best help during queue processing (since there is the
+potential of many different messages going to one site), although
+it can also help when processing MX records which aren't handled
+by MX Piggybacking.
+.pp
+If two hosts with different names in a single message happen to
+have the same set of MX hosts, they can be sent in the same
+transaction.  Version 8 notices this and tries to batch the messages.
+.pp
+For example, if two sites ``foo.com'' and ``bar.com'' are both
+served by UUNET, they will have the same set of MX hosts and will
+be sent in one transaction.  UUNET will then split the message
+and send it to the two individual hosts.
+.sh 2 "RFC 1123 Changes"
+.pp
+A number of changes have been made to make sendmail ``conditionally
+compliant'' (that is, it satisfies all of the MUST clauses and most
+but not all of the SHOULD clauses in RFC 1123).
+.pp
+The major areas of change are (numbers are RFC 1123 section numbers):
+.nr ii 0.75i
+.ip \(sc5.2.7
+Response to RCPT command is fast.  Previously, sendmail
+expanded all aliases as far as it could \*- this could
+take a very long time, particularly if there were
+name server delays.  Version 8 only checks for the
+existence of an alias and does the expansion later.
+It does still do a DNS lookup if there is an explicit host name
+in the RCPT command,
+but this time is bounded.
+.ip \(sc5.2.8
+Numeric IP addresses are logged in Received: lines.
+This helps tracing spoofed messages.
+.ip \(sc5.2.17
+Self domain literal is properly handled.  Previously,
+if someone sent to user@[1.2.3.4], where 1.2.3.4 is
+your IP address, the mail would probably be rejected
+with a ``configuration error''.
+Version 8 can handle these addresses.
+.ip \(sc5.3.2
+Better control over individual timeouts.  RFC 821 specified
+no timeouts.  Older versions of sendmail had a single
+timeout, typically set to two hours.  Version 8 allows
+the configuration file to set timeouts for various
+SMTP commands individually.
+.ip \(sc5.3.3
+Error messages are sent as From:<>.  This was urged by
+RFC 821 and reiterated by RFC 1123, but older versions
+of sendmail never really did it properly.  Version 8
+does.  However, some systems cannot handle this
+perfectly legal address; if necessary, you can create
+a special mailer that uses the `g' flag to disable this.
+.ip \(sc5.3.3
+Error messages are never sent to <>.  Previously,
+sendmail was happy to send responses-to-responses which
+sometimes resulted in responses-to-responses-to-responses
+which resulted in ....  you get the idea.
+.ip \(sc5.3.3
+Route-addrs (the ugly ``<@hosta,@hostb:user@hostc>''
+syntax) are pruned.  RFC 821 urged the use of this
+bletcherous syntax.  RFC 1123 has seen the light and
+officially deprecates them, further urging that you
+eliminate all but ``user@hostc'' should you receive
+one of these things.  Version 8 is slightly more generous
+than the standards suggest; instead of stripping off all
+the route addressees, it only strips hosts off up to
+the one before the last one known to DNS, thus allowing
+you to have pseudo-hosts such as foo.BITNET.  The `R'
+option will turn this off.
+.lp
+The areas in which sendmail is not ``unconditionally compliant'' are:
+.ip \(sc5.2.6
+Sendmail does do header munging.
+.ip \(sc5.2.10
+Sendmail doesn't always use the exact SMTP message
+text from RFC 821.  This is a rather silly requirement.
+.ip \(sc5.3.1.1
+Sendmail doesn't guarantee only one connect for each
+host on queue runs.  Connection caching gives you most
+of this, but it does not provide a guarantee.
+.ip \(sc5.3.1.1
+Sendmail doesn't always provide an adequate limit
+on concurrency.  That is, there can be several
+independent sendmails running at once.  My feeling
+is that doing an absolute limit would be a mistake
+(it might result in lost mail).  However, if you use
+the XLA contributed software, most of this will be
+guaranteed (but I don't guarantee the guarantee).
+.sh 2 "Extended SMTP Support
+.pp
+Version 8 includes both sending and receiving support for Extended
+SMTP support as defined by RFC 1425 (basic) and RFC 1427 (SIZE);
+and limited support for RFC 1426 (BODY).
+The body support is minimal because the
+.q 8BITMIME
+body type is not currently advertised.
+Although such a body type will be accepted,
+it will not be correctly converted to 7 bits
+if speaking to a non-8-bit-MIME aware SMTP server.
+.pp
+.i Sendmail
+tries to speak ESMTP if you have the `a' flag set
+in the flags for the mailer descriptor,
+or if the other end advertises the fact that it speaks ESMTP.
+This is a non-standard advertisement:
+.i sendmail
+announces
+.q "ESMTP spoken here"
+during the initial connection message,
+and client sendmails search for this message.
+This creates some problems for some PC-based mailers,
+which do not understand two-line greeting messages
+as required by RFC 821.
+.sh 2 "Eight-Bit Clean
+.pp
+Previous versions of sendmail used the 0200 bit for quoting.  This
+version avoids that use.
+However, you can set option `7' to get seven bit stripping
+for compatibility with RFC 821,
+which is a 7-bit protocol.
+This option says ``strip to 7 bits on input''.
+.pp
+Individual mailers can still produce seven bit out put using the
+`7' mailer flag.
+This flag says ``strip to 7 bits on output''.
+.sh 2 "User Database"
+.pp
+The User Database (UDB) is an as-yet experimental attempt to provide
+unified large-site name support.
+We are installing it at Berkeley;
+future versions may show significant modifications.
+Briefly, UDB contains a database that is intended to contain
+all the per-user information for your workgroup,
+such as people's full names, their .plan information,
+their outgoing mail name, and their mail drop.
+.pp
+The user database allows you to map both incoming and outgoing
+addresses, much like IDA.  However, the interface is still
+better with IDA;
+in particular, the alias file with incoming/outgoing marks
+provides better locality of information.
+.sh 2 "Improved BIND Support"
+.pp
+The BIND support, particularly for MX records, had a number of
+annoying ``features'' which have been removed in this release.  In
+particular, these more tightly bind (pun intended) the name server
+to sendmail, so that the name server resolution rules are incorporated
+directly into sendmail.
+.pp
+The major change has been that the $[ ... $] operator didn't fully
+qualify names that were in DNS as A or MX records.  Version 8 does
+this qualification.
+.pp
+This has proven to be an annoyance in Sun shops,
+who often still run without BIND support.
+However, it is really critical that this be supported,
+since MX records are mandatory.
+In SunOS you can choose either MX support or NIS support,
+but not both.
+This is fixed in Solaris,
+and some
+.i sendmail
+support to allow this in SunOS should be forthcoming in a future release.
+.sh 2 "Keyed Files"
+.pp
+Generalized keyed files is an idea taken directly from IDA sendmail
+(albeit with a completely different implementation).
+They can be useful on large sites.
+.pp
+Version 8 includes the following built-in map classes:
+.ip dbm
+Support for the ndbm(3) library.
+.ip hash
+Support for the ``Hash'' type from the new Berkeley db(3) library.
+this library provides substantially better database support
+than ndbm(3),
+including in-memory caching,
+arbitrarily long keys and values,
+and better disk utilization.
+.ip btree
+Support for the ``B-Tree'' type from the new Berkeley db(3) library.
+B-Trees provide better clustering than Hashed files
+if you are fetching lots of records that have similar keys,
+such as searching a dictionary for words beginning with ``detr''.
+.ip nis
+Support for NIS (a.k.a. YP) maps.
+NIS+ is not supported in this version.
+.ip host
+Support for DNS lookups.
+.ip dequote
+A ``pseudo-map'' (that is, once that does not have any external data)
+that allows a configuration file to break apart a quoted string
+in the address.
+This is necessary primarily for DECnet addresses,
+which often have quoted addresses that need to be unwrapped on gateways.
+.sh 2 "Multi-Word Classes & Macros in Classes"
+.pp
+Classes can now be multiple words.  For example,
+.(b
+CShofmann.CS.Berkeley.EDU
+.)b
+allows you to match the entire string ``hofmann.CS.Berkeley.EDU''
+using the single construct ``$=S''.
+.pp
+Class definitions are now allowed to include macros \*- for example:
+.(b
+Cw$k
+.)b
+is legal.
+.sh 2 "IDENT Protocol Support"
+.pp
+The IDENT protocol as defined in RFC 1413 [RFC1413] is supported.
+However, many systems have a TCP/IP bug that renders this useless,
+and the feature must be turned off.
+Roughly, if one of these system receives a
+.q "No route to host"
+message (ICMP message ICMP_UNREACH_HOST) on
+.i any
+connection, all connections to that host are closed.
+Some firewalls return this error if you try to connect
+to the IDENT port,
+so you can't receive email from these hosts on these systems.
+It's possible that if the firewall used a more specific message
+(such as ICMP_UNREACH_PROTOCOL, ICMP_UNREACH_PORT or ICMP_UNREACH_NET_PROHIB)
+it would work, but this hasn't been verified.
+.pp
+IDENT protocol support cannot be used on
+4.3BSD,
+Apollo DomainOS,
+Apple A/UX,
+ConvexOS,
+Data General DG/UX,
+HP-UX,
+Sequent Dynix,
+or
+Ultrix 4.x, x \(<= 3.
+It seems to work on
+4.4BSD,
+IBM AIX 3.x,
+OSF/1,
+SGI IRIX,
+Solaris,
+SunOS,
+and Ultrix 4.4.
+.sh 2 "Separate Envelope/Header Processing
+.pp
+Since the From: line is passed in separately from the envelope
+sender, these have both been made visible; the $g macro is set to
+the envelope sender during processing of mailer argument vectors
+and the header sender during processing of headers.
+.pp
+It is also possible to specify separate per-mailer envelope and
+header processing.  The SenderRWSet and RecipientRWset arguments
+for mailers can be specified as ``envelope/header'' to give different
+rewritings for envelope versus header addresses.
+.sh 2 "Owner-List Propagates to Envelope
+.pp
+When an alias has an associated owner-list name, that alias is used
+to change the envelope sender address.  This will cause downstream
+errors to be returned to that owner.
+.pp
+Some people find this confusing
+because the envelope sender is what appears in the first
+``From_'' line in UNIX messages
+(that is, the line beginning ``From<space>''
+instead of ``From:'';
+the latter is the header from, which
+.i does
+indicate the sender of the message).
+In previous versions,
+.i sendmail
+has tried to avoid changing the envelope sender
+for back compatibility with UNIX convention;
+at this point that back compatibility is creating too many problems,
+and it is necessary to move forward into the 1980s.
+.sh 2 "Command Line Flags"
+.pp
+The
+.b \-B
+flag has been added to pass in body type information.
+.pp
+The
+.b \-p
+flag has been added to pass in protocol information
+that was previously passed in by defining the
+.b $r
+and
+.b $s
+macros.
+.pp
+The
+.b \-X
+flag has been added to allow logging of all protocol in and
+out of sendmail for debugging.
+You can set
+.q "\-X filename"
+and a complete transcript will be logged in that file.
+This gets big fast: the option is only for debugging.
+.pp
+The
+.b \-q
+flag can limit limit a queue run to specific recipients,
+senders, or queue ids using \-qRsubstring, \-qSsubstring, or
+\-qIsubstring respectively.
+.sh 2 "New Configuration Line Types
+.pp
+The `T' (Trusted users) configuration line has been deleted.  It
+will still be accepted but will be ignored.
+.pp
+The `K' line has been added to declare database maps.
+.pp
+The `V' line has been added to declare the configuration version
+level.
+.pp
+The `M' (mailer) line takes a D= field to specify execution
+directory.
+.sh 2 "New and Extended Options"
+.pp
+Several new options have been added, many to support new features,
+others to allow tuning that was previously available only by
+recompiling.  Briefly:
+.nr ii 0.5i
+.ip A
+The alias file specification can now be a list of alias files.
+Also, the configuration can specify a class of file.
+For example, to search the NIS aliases, use
+.q OAnis:mail.aliases .
+.ip b
+Insist on a minimum number of disk blocks.
+.ip C
+Delivery checkpoint interval.  Checkpoint the queue (to avoid
+duplicate deliveries) every C addresses.
+.ip E
+Default error message.  This message (or the contents of the
+indicated file) are prepended to error messages.
+.ip G
+Enable GECOS matching.  If you can't find a local user name
+and this option is enabled, do a sequential scan of the passwd
+file to match against full names.  Previously a compile option.
+.ip h
+Maximum hop count.  Previously this was compiled in.
+.ip I
+This option has been extended to allow setting of resolver parameters.
+.ip j
+Send errors in MIME-encapsulated format.
+.ip J
+Forward file path.  Where to search for .forward files \*- defaults
+to $HOME/.forward.
+.ip k
+Connection cache size.  The total number of connections that will
+be kept open at any time.
+.ip K
+Connection cache lifetime.  The amount of time any connection
+will be permitted to sit idle.
+.ip l
+Enable Errors-To: header.  These headers violate RFC 1123;
+this option is included to provide back compatibility with
+old versions of sendmail.
+.ip O
+Incoming daemon options (e.g., use alternate SMTP port).
+.ip p
+Privacy options.  These can be used to make your SMTP server
+less friendly.
+.ip r
+This option has been extended to allow finer grained control
+over timeouts.
+For example, you can set the timeout for SMTP commands individually.
+.ip R
+Don't prune route-addrs.  Normally, if version 8 sees an address
+like "<@hostA,@hostB:user@hostC>, sendmail will try to strip off
+as much as it can (up to user@hostC) as suggested by RFC 1123.
+This option disables that behaviour.
+.ip T
+The
+.q "Return To Sender"
+timeout has been extended
+to allow specification of a warning message interval,
+typically something on the order of four hours.
+If a message cannot be delivered in that interval,
+a warning message is sent back to the sender
+but the message continues to be tried.
+.ip U
+User database spec.  This is still experimental.
+.ip V
+Fallback ``MX'' host.  This can be thought of as an MX host
+that applies to all addresses that has a very high preference
+value (that is, use it only if everything else fails).
+.ip w
+If set, assume that if you are the best MX host for a host,
+you should send directly to that host.  This is intended
+for compatibility with UIUC sendmail, and may have some
+use on firewalls.
+.ip 7
+Do not run eight bit clean.  Technically, you have to assert
+this option to be RFC 821 compatible.
+.sh 2 "New Mailer Definitions"
+.ip L=
+Set the allowable line length.  In V5, the L mailer flag implied
+a line length limit of 990 characters; this is now settable to
+an arbitrary value.
+.ip F=a
+Try to use ESMTP.  It will fall back to SMTP if the initial
+EHLO packet is rejected.
+.ip F=b
+Ensure a blank line at the end of messages.  Useful on the
+*file* mailer.
+.ip F=c
+Strip all comments from addresses; this should only be used as
+a last resort when dealing with cranky mailers.
+.ip F=g
+Never use the null sender as the envelope sender, even when
+running SMTP.  This violates RFC 1123.
+.ip F=7
+Strip all output to this mailer to 7 bits.
+.ip F=L
+Used to set the line limit to 990 bytes for SMTP compatibility.
+It now does that only if the L= keyletter is not specified.
+This flag is obsolete and should not be used.
+.sh 2 "New or Changed Pre-Defined Macros"
+.ip $k
+UUCP node name from uname(2).
+.ip $m
+Domain part of our full hostname.
+.ip $_
+RFC 1413-provided sender address.
+.ip $w
+Previously was sometimes the full domain name, sometimes
+just the first word.  Now guaranteed to be the first word
+of the domain name (i.e., the host name).
+.ip $j
+Previously had to be defined \*- it is now predefined to be
+the full domain name, if that can be determined.  That is,
+it is equivalent to $w.$m.
+.sh 2 "New and Changed Classes"
+.ip $=k
+Initialized to contain $k.
+.ip $=w
+Now includes
+.q [1.2.3.4]
+(where 1.2.3.4 is your IP address)
+to allow the configuration file to recognize your own IP address.
+.sh 2 "New Rewriting Tokens"
+.pp
+The
+.b $&
+construct has been adopted from IDA to defer macro evaluation.
+Normally, macros in rulesets are bound when the rule is first parsed
+during startup.
+Some macros change during processing and are uninteresting during startup.
+However, that macro can be referenced using
+.q $&x
+to defer the evaulation of
+$x
+until the rule is processed.
+.pp
+The tokens
+.b $(
+and
+.b $)
+have been added to allow specification of map rewriting.
+.pp
+Version 8 allows
+.b $@
+on the Left Hand Side of an `R' line to match
+zero tokens.
+This is intended to be used to match the null input.
+.sh 2 "Bigger Defaults
+.pp
+Version 8 allows up to 100 rulesets instead of 30.  It is recommended
+that rulesets 0\-9 be reserved for sendmail's dedicated use in future
+releases.
+.pp
+The total number of MX records that can be used has been raised to
+20.
+.pp
+The number of queued messages that can be handled at one time has
+been raised from 600 to 1000.
+.sh 2 "Different Default Tuning Parameters
+.pp
+Version 8 has changed the default parameters for tuning queue costs
+to make the number of recipients more important than the size of
+the message (for small messages).  This is reasonable if you are
+connected with reasonably fast links.
+.sh 2 "Auto-Quoting in Addresses
+.pp
+Previously, the ``Full Name <email address>'' syntax would generate
+incorrect protocol output if ``Full Name'' had special characters
+such as dot.  This version puts quotes around such names.
+.sh 2 "Symbolic Names On Error Mailer
+.pp
+Several names have been built in to the $@ portion of the $#error
+mailer.  For example:
+.(b
+$#error $@NOHOST $: Host unknown
+.)b
+Prints the indicated message
+and sets the exit status of
+.i sendmail
+to
+.sm EX_NOHOST .
+.sh 2 "New Built-In Mailers"
+.pp
+Two new mailers, *file* and *include*, are included to define options
+when mailing to a file or a :include: file respectively.  Previously
+these were overloaded on the local mailer.
+.sh 2 "SMTP VRFY Doesn't Expand
+.pp
+Previous versions of sendmail treated VRFY and EXPN the same.  In
+this version, VRFY doesn't expand aliases or follow .forward files.
+.pp
+As an optimization, if you run with your default delivery mode
+being queue-only, the RCPT command will also not chase aliases and
+\&.forward files.
+It will chase them when it processes the queue.
+This speeds up RCPT processing.
+.sh 2 "[IPC] Mailers Allow Multiple Hosts
+.pp
+When an address resolves to a mailer that has ``[IPC]'' as its
+``Path'', the $@ part (host name) can be a colon-separated list of
+hosts instead of a single hostname.  This asks sendmail to search
+the list for the first entry that is available exactly as though
+it were an MX record.  The intent is to route internal traffic
+through internal networks without publishing an MX record to the
+net.  MX expansion is still done on the individual items.
+.sh 2 "Aliases Extended"
+.pp
+The implementation has been merged with maps.  Among other things,
+this supports multiple alias files and NIS-based aliases.  For
+example:
+.(b
+OA/etc/aliases,nis:mail.aliases
+.)b
+will search first the local database
+.q /etc/aliases
+followed by the NIS map
+
+.sh 2 "Portability and Security Enhancements
+.pp
+A number of internal changes have been made to enhance portability.
+.pp
+Several fixes have been made to increase the paranoia factor.
+.pp
+In particular, the permissions required for .forward and :include:
+files have been tightened up considerably.  V5 would pretty much
+read any file it could get to as root, which exposed some security
+holes.  V8 insists that all directories leading up to the .forward
+or :include: file be searchable ("x" permission) by the controlling
+user" (defined below), that the file itself be readable by the
+controlling user, and that .forward files be owned by the user
+who is being forwarded to or root.
+.pp
+The "controlling user" is the user on whose behalf the mail is
+being delivered.  For example, if you mail to "user1" then the
+controlling user for ~user1/.forward and any mailers invoked
+by that .forward file, including :include: files.
+.pp
+Previously, anyone who had a home directory could create a .forward
+could forward to a program.  Now, sendmail checks to make sure
+that they have an "approved shell", that is, a shell listed in
+the /etc/shells file.
+.sh 2 "Miscellaneous Fixes and Enhancements"
+.pp
+A number of small bugs having to do with things like backslash-escaped
+quotes inside of comments have been fixed.
+.pp
+The fixed size limit on header lines
+(such as
+.q To:
+and
+.q Cc: )
+has been eliminated;
+those buffers are dynamically allocated now.
+.pp
+Sendmail writes a /etc/sendmail.pid file with the current process id
+and the current invocation flags.
+.pp
+Two people using the same program (e.g., submit) are considered
+"different" so that duplicate elimination doesn't delete one of
+them.  For example, two people forwarding their email to
+|submit will be treated as two recipients.
+.pp
+The mailstats program prints mailer names and gets the location of
+the sendmail.st file from /etc/sendmail.cf.
+.pp
+Many minor bugs have been fixed, such as handling of backslashes
+inside of quotes.
+.pp
+A hook has been added to allow rewriting of local addresses after
+aliasing.
+.sh 1 "FUTURE WORK"
+.pp
+The previous section describes
+.i sendmail
+as of version 8.6.6.
+There is still much to be done.
+Some high points are described below.
+This list is by no means exhaustive.
+.sh 2 "Full MIME Support"
+.pp
+Currently
+.i sendmail
+only supports seven bit MIME messages.
+Although it can pass eight bit MIME messages,
+it cannot advertise that fact because the standards say
+that the mail agent must be able to do 8- to 7-bit conversion
+to have full 8-bit support.
+This requires far more extensive modification of the message body
+than is currently supported.
+.pp
+The best way to do this would be to support the general concept
+of an external
+``message filter''
+that could do arbitrary modifications of the message.
+This would allow MIME conversion as well as such things as
+automatic encryption of messages sent over external links.
+This is probably an extremely non-trivial change.
+.sh 2 "Service Switch Abstraction"
+.pp
+Most modern systems include some concept of a
+.q "service switch"
+\*- for example, to look up host names you can try
+DNS, NIS, NIS+, text tables, NetInfo,
+or other services in some arbitrary order.
+This is currently very clumsy in
+.i sendmail ,
+with only limited control of the services provided.
+.sh 2 "More Control of Local Addresses"
+.pp
+Currently some addresses are declared as
+.q local
+and are handled specially \*-
+for example, they may have .forward files,
+may be translated into program calls or file deliveries,
+and so forth.
+These should be broken out into separate flags
+to allow the local system administrator
+to have more fine-grained control over operations.
+.sh 2 "More Run-Time Configuration Options"
+.pp
+There are many options that are configured at compile time,
+such as the method of file locking
+and the use of the IDENT protocol
+[RFC1413].
+These should be transfered to run time
+by adding new options.
+.pp
+Similarly, some options are currently overloaded,
+that is, a single option controls more than one thing.
+These should probably be broken out into separate options.
+.pp
+This implies that options will change from single characters
+to words.
+.sh 2 "More Configuration Control Over Errors"
+.pp
+Currently,
+the configuration file can generate an error message during parsing.
+However,
+it cannot tweak other operations,
+such as issuing a warning message to the system postmaster.
+Similarly,
+some errors should not be triggered if they are in aliases
+during an alias file rebuild,
+but should be triggered if that alias is actually used.
+.sh 2 "Long Term Host State"
+.pp
+Currently,
+.i sendmail
+only remembers host status during a single queue run.
+This should be converted to long term status
+stored on disk
+so it can be shared between instantiations of
+.i sendmail .
+Entries will have to be timestamped
+so they can time out.
+This will allow
+.i sendmail
+to implement exponential backoff on queue runs
+on a per-host basis.
+.sh 2 "Connection Control"
+.pp
+Modern networks have different types of connectivity
+than the past.
+In particular, the rising prominence of dialup IP
+has created certain challenges for automated servers.
+It is not uncommon to try to make a connection to a host
+and have it fail, even though if you tried again it would succeed.
+The connection management could be a bit cleverer
+to try to adapt to such situations.
+.sh 2 "Other Caching"
+.pp
+When you do an MX record lookup,
+the name server automatically returns the IP addresses
+of the associated MX servers.
+This information is currently ignored,
+and another query is done to get this information.
+It should be cached to avoid excess name server traffic.
+.sh 1 "REFERENCES"
+.ip [Allman83a]
+.q "Sendmail \*- An Internetwork Mail Router."
+E. Allman.
+In
+.ul
+Unix Programmers's Manual,
+4.2 Berkeley Software Distribution,
+volume 2C.
+August 1983.
+.ip [Allman83b]
+.q "Mail Systems and Addressing in 4.2BSD."
+E. Allman
+In
+.ul
+UNICOM Conference Proceedings.
+San Diego, California.
+January 1983.
+.ip [Allman&Amos85]
+``Sendmail Revisited.''
+E. Allman and M. Amos.
+In
+.ul
+Usenix Summer 1985 Conference Proceedings.
+Portland, Oregon.
+June 1985.
+.ip [IDA87]
+.ul 3
+Electronic Mail Addressing in Theory and Practice
+with the IDA Sendmail Enhancement Kit
+(or The Postmaster's Last Will and Testament).
+Lennart Lo\*:vstrand.
+Department of Computer and Information Science,
+University of Linko\*:ping,
+Sweden,
+Report no. LiTH-IDA-Ex-8715.
+May 1987.
+.ip [RFC821]
+.ul
+Simple Mail Transport Protocol.
+J. Postel.
+August 1982.
+.ip [RFC1123]
+.ul
+Requirements for Internet Hosts \*- Application and Support.
+Internet Engineering Task Force,
+R. Braden, Editor.
+October 1989.
+.ip [RFC1344]
+.ul
+Implications of MIME for Internet Mail Gateways.
+N. Borenstein.
+June 1992.
+.ip [RFC1413]
+.ul
+Identification Protocol.
+M. St. Johns.
+February 1993.
+.ip [RFC1425]
+.ul
+SMTP Service Extensions.
+J. Klensin, N. Freed, M. Rose, E. Stefferud, and D. Crocker.
+February 1993.
+.ip [RFC1426]
+.ul
+SMTP Service Extension for 8bit-MIMEtransport.
+J. Klensin, N. Freed, M. Rose, E. Stefferud, and D. Crocker.
+February 1993.
+.ip [RFC1427]
+.ul
+SMTP Service Extension for Message Size Declaration.
+J. Klensin, N. Freed, and K. Moore.
+February 1993.
+.ip [RFC1521]
+.ul 3
+MIME (Multipurpose Internet Mail Extensions) Part One:
+Mechanisms for Specifying and Describing
+the Format of Internet Message Bodies.
+N. Borenstein and N. Freed.
+September 1993.
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+(can be a colon-separated list of hosts instead of a single hostname.)102 554.4
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+.25 F .161(xactly as though it were an MX record.)-.15 F .161
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+(xample:)258.34 642.6 Q -.35(OA)142 658.8 S(/etc/aliases,nis:mail.aliases).35 E
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+(\("x" permission\) by the controlling user" \(de\214ned belo)102 180.6 R .335
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+-.15 G 2.966(ds).15 G .466(hell", that is, a shell listed)398.42 261 R
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+R 1.552(ed size limit on header lines \(such as \231T)-.15 F 1.553
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+il writes a /etc/sendmail.pid \214le with the current process id and the curre\
+nt in)127 369.6 R -.2(vo)-.4 G(cation).2 E(\215ags.)102 381.6 Q -1 -.8(Tw o)127
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+R .508(arding their email to |submit)-.1 F(will be treated as tw)102 421.8 Q
+2.5(or)-.1 G(ecipients.)193.27 421.8 Q .721(The mailstats program prints maile\
+r names and gets the location of the sendmail.st \214le from)127 438 R
+(/etc/sendmail.cf.)102 450 Q(Man)127 466.2 Q 2.5(ym)-.15 G(inor b)160.46 466.2
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+S(ook has been added to allo)141.72 482.4 Q 2.5(wr)-.25 G -.25(ew)260.89 482.4
+S(riting of local addresses after aliasing.).25 E F0 2.5(3. FUTURE)72 506.4 R
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+-.15(ve)-.25 G(.).15 E F0 2.5(3.1. Full)87 558.6 R(MIME Support)2.5 E F1
+(Currently)127 574.8 Q F2(sendmail)3.305 E F1 .805(only supports se)3.305 F
+-.15(ve)-.25 G 3.305(nb).15 G .805(it MIME messages.)297.005 574.8 R .806
+(Although it can pass eight bit)5.805 F .371(MIME messages, it cannot adv)102
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+.561 -.15(ve f)-.2 H .261(ull 8-bit support.).15 F .261(This requires f)5.261 F
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+(cation of the message body than is currently supported.)102 610.8 Q .464
+(The best w)127 627 R .464(ay to do this w)-.1 F .463
+(ould be to support the general concept of an e)-.1 F .463(xternal `)-.15 F
+.463(`message \214l-)-.74 F(ter')102 639 Q 3.319('t)-.74 G .819
+(hat could do arbitrary modi\214cations of the message.)124.569 639 R .819
+(This w)5.819 F .82(ould allo)-.1 F 3.32(wM)-.25 G .82(IME con)427.37 639 R
+-.15(ve)-.4 G .82(rsion as).15 F .63
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+(ve)-.15 G 3.129(re).15 G .629(xternal links.)379.264 651 R .629
+(This is probably)5.629 F(an e)102 663 Q(xtremely non-tri)-.15 E(vial change.)
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+ern systems include some concept of a \231service switch\232 \212 for e)127
+703.2 R .37(xample, to look up)-.15 F .984
+(host names you can try DNS, NIS, NIS+, te)102 715.2 R .984
+(xt tables, NetInfo, or other services in some arbitrary)-.15 F EP
+%%Page: 10 10
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF 287.15(10 Changes)72 60 R(in Sendmail V)2.5 E(ersion 8)
+-1 E/F1 10/Times-Roman@0 SF(order)102 96 Q 5.174(.T)-.55 G .174
+(his is currently v)136.334 96 R .174(ery clumsy in)-.15 F/F2 10/Times-Italic@0
+SF(sendmail)2.674 E F1 2.674(,w)C .174
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+(3.3. Mor)87 120 R 2.5(eC)-.18 G(ontr)139.86 120 Q(ol of Local Addr)-.18 E
+(esses)-.18 E F1 .943(Currently some addresses are declared as \231local\232 a\
+nd are handled specially \212 for e)127 136.2 R(xample,)-.15 E(the)102 148.2 Q
+3.455(ym)-.15 G .955(ay ha)130.305 148.2 R 1.255 -.15(ve .)-.2 H(forw).15 E
+.956(ard \214les, may be translated into program calls or \214le deli)-.1 F
+-.15(ve)-.25 G .956(ries, and so forth.).15 F .311(These should be brok)102
+160.2 R .311(en out into separate \215ags to allo)-.1 F 2.811(wt)-.25 G .31
+(he local system administrator to ha)330.29 160.2 R .61 -.15(ve m)-.2 H(ore).15
+E(\214ne-grained control o)102 172.2 Q -.15(ve)-.15 G 2.5(ro).15 G(perations.)
+208.62 172.2 Q F0 2.5(3.4. Mor)87 196.2 R 2.5(eR)-.18 G(un-T)139.86 196.2 Q
+(ime Con\214guration Options)-.18 E F1 .016(There are man)127 212.4 R 2.516(yo)
+-.15 G .016(ptions that are con\214gured at compile time, such as the method o\
+f \214le locking)197.148 212.4 R .719
+(and the use of the IDENT protocol [RFC1413].)102 224.4 R .719
+(These should be transfered to run time by adding)5.719 F(ne)102 236.4 Q 2.5
+(wo)-.25 G(ptions.)125.91 236.4 Q(Similarly)127 252.6 Q 3.413(,s)-.65 G .913
+(ome options are currently o)173.383 252.6 R -.15(ve)-.15 G .913
+(rloaded, that is, a single option controls more than).15 F(one thing.)102
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+(This implies that options will change from single characters to w)127 280.8 Q
+(ords.)-.1 E F0 2.5(3.5. Mor)87 304.8 R 2.5(eC)-.18 G(on\214guration Contr)
+139.86 304.8 Q(ol Ov)-.18 E(er Err)-.1 E(ors)-.18 E F1(Currently)127 321 Q
+3.649(,t)-.65 G 1.148
+(he con\214guration \214le can generate an error message during parsing.)
+173.609 321 R(Ho)6.148 E(we)-.25 E -.15(ve)-.25 G 1.948 -.4(r, i).15 H(t).4 E
+.569(cannot tweak other operations, such as issuing a w)102 333 R .57
+(arning message to the system postmaster)-.1 F 5.57(.S)-.55 G(imi-)487.33 333 Q
+(larly)102 345 Q 2.558(,s)-.65 G .057
+(ome errors should not be triggered if the)128.628 345 R 2.557(ya)-.15 G .057
+(re in aliases during an alias \214le reb)302.237 345 R .057(uild, b)-.2 F .057
+(ut should)-.2 F(be triggered if that alias is actually used.)102 357 Q F0 2.5
+(3.6. Long)87 381 R -.92(Te)2.5 G(rm Host State).92 E F1(Currently)127 397.2 Q
+(,)-.65 E F2(sendmail)3.731 E F1 1.231
+(only remembers host status during a single queue run.)3.731 F 1.232
+(This should be)6.232 F(con)102 409.2 Q -.15(ve)-.4 G .492(rted to long term s\
+tatus stored on disk so it can be shared between instantiations of).15 F F2
+(sendmail)2.991 E F1(.)A .866(Entries will ha)102 421.2 R 1.167 -.15(ve t)-.2 H
+3.367(ob).15 G 3.367(et)190.666 421.2 S .867(imestamped so the)201.253 421.2 R
+3.367(yc)-.15 G .867(an time out.)290.084 421.2 R .867(This will allo)5.867 F
+(w)-.25 E F2(sendmail)3.367 E F1 .867(to implement)3.367 F -.15(ex)102 433.2 S
+(ponential back).15 E(of)-.1 E 2.5(fo)-.25 G 2.5(nq)188.7 433.2 S
+(ueue runs on a per)201.2 433.2 Q(-host basis.)-.2 E F0 2.5(3.7. Connection)87
+457.2 R(Contr)2.5 E(ol)-.18 E F1 .819(Modern netw)127 473.4 R .819(orks ha)-.1
+F 1.119 -.15(ve d)-.2 H(if).15 E .819(ferent types of connecti)-.25 F .818
+(vity than the past.)-.25 F .818(In particular)5.818 F 3.318(,t)-.4 G .818
+(he rising)468.462 473.4 R .636
+(prominence of dialup IP has created certain challenges for automated serv)102
+485.4 R 3.136(ers. It)-.15 F .636(is not uncommon)3.136 F .732(to try to mak)
+102 497.4 R 3.232(eac)-.1 G .732(onnection to a host and ha)175.27 497.4 R
+1.032 -.15(ve i)-.2 H 3.232(tf).15 G .732(ail, e)307.984 497.4 R -.15(ve)-.25 G
+3.232(nt).15 G .732(hough if you tried ag)348.208 497.4 R .732(ain it w)-.05 F
+.731(ould suc-)-.1 F 2.5(ceed. The)102 509.4 R
+(connection management could be a bit cle)2.5 E -.15(ve)-.25 G
+(rer to try to adapt to such situations.).15 E F0 2.5(3.8. Other)87 533.4 R
+(Caching)2.5 E F1 .074(When you do an MX record lookup, the name serv)127 549.6
+R .075(er automatically returns the IP addresses of)-.15 F .518
+(the associated MX serv)102 561.6 R 3.018(ers. This)-.15 F .518
+(information is currently ignored, and another query is done to get)3.018 F
+(this information.)102 573.6 Q(It should be cached to a)5 E -.2(vo)-.2 G(id e)
+.2 E(xcess name serv)-.15 E(er traf)-.15 E(\214c.)-.25 E F0 2.5(4. REFERENCES)
+72 597.6 R F1([Allman83a])87 613.8 Q .137(\231Sendmail \212 An Internetw)123
+625.8 R .137(ork Mail Router)-.1 F 4.037 -.7(.\232 E)-.55 H 2.638(.A).7 G 2.638
+(llman. In)327.58 625.8 R F2 .138(Unix Pr)2.638 F -.1(og)-.45 G -.15(ra).1 G
+(mmer).15 E(s')-.1 E 2.638(sM)-.4 G(anual,)463.582 625.8 Q F1(4.2)2.638 E(Berk)
+123 637.8 Q(ele)-.1 E 2.5(yS)-.15 G(oftw)166.91 637.8 Q(are Distrib)-.1 E
+(ution, v)-.2 E(olume 2C.)-.2 E(August 1983.)5 E([Allman83b])87 654 Q .384
+(\231Mail Systems and Addressing in 4.2BSD.)123 666 R 5.384<9a45>-.7 G 2.884
+(.A)311.544 666 S .383(llman In)324.148 666 R F2 .383(UNICOM Confer)2.883 F
+.383(ence Pr)-.37 F(oceedings.)-.45 E F1(San Die)123 678 Q(go, California.)-.15
+E(January 1983.)5 E([Allman&Amos85])87 694.2 Q -.74(``)123 706.2 S 1.145
+(Sendmail Re).74 F(visited.)-.25 E 5.125 -.74('' E)-.7 H 3.645(.A).74 G 1.145
+(llman and M. Amos.)241.215 706.2 R(In)6.145 E F2 1.145
+(Usenix Summer 1985 Confer)3.645 F 1.145(ence Pr)-.37 F(o-)-.45 E(ceedings.)123
+718.2 Q F1(Portland, Ore)5 E 2.5(gon. June)-.15 F(1985.)2.5 E EP
+%%Page: 11 11
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Changes in Sendmail V)72 60 Q(ersion 8)-1 E(11)494 60 Q
+/F1 10/Times-Roman@0 SF([ID)87 96 Q(A87])-.4 E/F2 10/Times-Italic@0 SF(Electr)
+1.97 E .983(onic Mail Addr)-.45 F .983(essing in Theory and Pr)-.37 F .982
+(actice with the ID)-.15 F 3.482(AS)-.35 G .982(endmail Enhancement Kit)398.156
+96 R .563(\(or The P)123 108 R(ostmaster')-.8 E 3.063(sL)-.4 G .563(ast W)
+215.989 108 R .564(ill and T)-.55 F(estament\).)-.92 E F1 .564(Lennart Lo)5.564
+F -.5(..)359.828 102 S 3.064(vstrand. Department)364.828 108 R .564
+(of Computer)3.064 F 1.267(and Information Science, Uni)123 120 R -.15(ve)-.25
+G 1.267(rsity of Link).15 F(o)-.1 E -.5(..)306.585 114 S 1.266
+(ping, Sweden, Report no. LiTH-ID)311.585 120 R(A-Ex-8715.)-.4 E(May 1987.)123
+132 Q([RFC821])87 148.2 Q F2(Simple Mail T)123 160.2 Q -.15(ra)-.55 G
+(nsport Pr).15 E(otocol.)-.45 E F1(J. Postel.)5 E(August 1982.)5 E([RFC1123])87
+176.4 Q F2(Requir)123 188.4 Q .163
+(ements for Internet Hosts \212 Application and Support.)-.37 F F1 .164
+(Internet Engineering T)5.164 F .164(ask F)-.8 F(orce,)-.15 E
+(R. Braden, Editor)123 200.4 Q 5(.O)-.55 G(ctober 1989.)207.72 200.4 Q
+([RFC1344])87 216.6 Q F2(Implications of MIME for Internet Mail Gate)123 228.6
+Q(ways.)-.15 E F1(N. Borenstein.)5 E(June 1992.)5 E([RFC1413])87 244.8 Q F2
+(Identi\214cation Pr)123 256.8 Q(otocol.)-.45 E F1(M. St. Johns.)5 E
+(February 1993.)5 E([RFC1425])87 273 Q F2 2.352(SMTP Service Extensions.)123
+285 R F1 2.352(J. Klensin, N. Freed, M. Rose, E. Stef)7.352 F 2.351
+(ferud, and D. Crock)-.25 F(er)-.1 E(.)-.55 E(February 1993.)123 297 Q
+([RFC1426])87 313.2 Q F2 .12(SMTP Service Extension for 8bit-MIMEtr)123 325.2 R
+(ansport.)-.15 E F1 .12(J. Klensin, N. Freed, M. Rose, E. Stef)5.12 F(ferud,)
+-.25 E(and D. Crock)123 337.2 Q(er)-.1 E 5(.F)-.55 G(ebruary 1993.)196.78 337.2
+Q([RFC1427])87 353.4 Q F2 .813(SMTP Service Extension for Messa)123 365.4 R
+1.013 -.1(ge S)-.1 H .813(ize Declar).1 F(ation.)-.15 E F1 .813
+(J. Klensin, N. Freed, and K. Moore.)5.813 F(February 1993.)123 377.4 Q
+([RFC1521])87 393.6 Q F2 2.033
+(MIME \(Multipurpose Internet Mail Extensions\) P)123 405.6 R 2.033
+(art One: Mec)-.8 F 2.033(hanisms for Specifying and)-.15 F .933
+(Describing the F)123 417.6 R .933(ormat of Internet Messa)-1.05 F 1.133 -.1
+(ge B)-.1 H(odies.).1 E F1 .932(N. Borenstein and N. Freed.)5.932 F(September)
+5.932 E(1993.)123 429.6 Q EP
+%%Trailer
+end
+%%EOF
diff --git a/doc/intro/Makefile b/doc/intro/Makefile
new file mode 100644
index 0000000..939cd6c
--- /dev/null
+++ b/doc/intro/Makefile
@@ -0,0 +1,13 @@
+#	@(#)Makefile	8.2 (Berkeley) 2/28/94
+
+DIR=	smm/09.sendmail
+SRCS=	intro.me
+MACROS=	-me
+
+all: intro.ps
+
+intro.ps: ${SRCS}
+	rm -f ${.TARGET}
+	${PIC} ${SRCS} | ${ROFF} > ${.TARGET}
+
+.include <bsd.doc.mk>
diff --git a/doc/intro/intro.me b/doc/intro/intro.me
new file mode 100644
index 0000000..0406bb1
--- /dev/null
+++ b/doc/intro/intro.me
@@ -0,0 +1,1478 @@
+.\" Copyright (c) 1983 Eric P. Allman
+.\" Copyright (c) 1988, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)intro.me	8.2 (Berkeley) 11/27/93
+.\"
+.\"	pic -Pxx intro.me | ditroff -me -Pxx
+.eh 'SMM:9-%''SENDMAIL \*- An Internetwork Mail Router'
+.oh 'SENDMAIL \*- An Internetwork Mail Router''SMM:9-%'
+.nr si 3n
+.if n .ls 2
+.+c
+.(l C
+.sz 14
+SENDMAIL \*- An Internetwork Mail Router
+.sz
+.sp
+Eric Allman*
+.sp 0.5
+.i
+University of California, Berkeley
+Mammoth Project
+.)l
+.sp
+.(l F
+.ce
+ABSTRACT
+.sp \n(psu
+Routing mail through a heterogenous internet presents many new
+problems.  Among the worst of these is that of address mapping.
+Historically, this has been handled on an
+.i "ad hoc"
+basis.  However,
+this approach has become unmanageable as internets grow.
+.sp \n(psu
+Sendmail acts a unified "post office" to which all mail can be
+submitted.  Address interpretation is controlled by a production
+system, which can parse both domain-based addressing and old-style
+.i "ad hoc"
+addresses.
+The production system is powerful
+enough to rewrite addresses in the message header to conform to the
+standards of a number of common target networks, including old
+(NCP/RFC733) Arpanet, new (TCP/RFC822) Arpanet, UUCP, and Phonenet.
+Sendmail also implements an SMTP server, message
+queueing, and aliasing.
+.)l
+.sp 2
+.(f
+*A considerable part of this work
+was done while under the employ
+of the INGRES Project
+at the University of California at Berkeley
+and at Britton Lee.
+.)f
+.pp
+.i Sendmail
+implements a general internetwork mail routing facility,
+featuring aliasing and forwarding,
+automatic routing to network gateways,
+and flexible configuration.
+.pp
+In a simple network,
+each node has an address,
+and resources can be identified
+with a host-resource pair;
+in particular,
+the mail system can refer to users
+using a host-username pair.
+Host names and numbers have to be administered by a central authority,
+but usernames can be assigned locally to each host.
+.pp
+In an internet,
+multiple networks with different characterstics
+and managements
+must communicate.
+In particular,
+the syntax and semantics of resource identification change.
+Certain special cases can be handled trivially
+by
+.i "ad hoc"
+techniques,
+such as
+providing network names that appear local to hosts
+on other networks,
+as with the Ethernet at Xerox PARC.
+However,  the general case is extremely complex.
+For example,
+some networks require point-to-point routing,
+which simplifies the database update problem
+since only adjacent hosts must be entered
+into the system tables,
+while others use end-to-end addressing.
+Some networks use a left-associative syntax
+and others use a right-associative syntax,
+causing ambiguity in mixed addresses.
+.pp
+Internet standards seek to eliminate these problems.
+Initially, these proposed expanding the address pairs
+to address triples,
+consisting of
+{network, host, resource}
+triples.
+Network numbers must be universally agreed upon,
+and hosts can be assigned locally
+on each network.
+The user-level presentation was quickly expanded
+to address domains,
+comprised of a local resource identification
+and a hierarchical domain specification
+with a common static root.
+The domain technique
+separates the issue of physical versus logical addressing.
+For example,
+an address of the form
+.q "eric@a.cc.berkeley.arpa"
+describes only the logical
+organization of the address space.
+.pp
+.i Sendmail
+is intended to help bridge the gap
+between the totally
+.i "ad hoc"
+world
+of networks that know nothing of each other
+and the clean, tightly-coupled world
+of unique network numbers.
+It can accept old arbitrary address syntaxes,
+resolving ambiguities using heuristics
+specified by the system administrator,
+as well as domain-based addressing.
+It helps guide the conversion of message formats
+between disparate networks.
+In short,
+.i sendmail
+is designed to assist a graceful transition
+to consistent internetwork addressing schemes.
+.sp
+.pp
+Section 1 discusses the design goals for
+.i sendmail .
+Section 2 gives an overview of the basic functions of the system.
+In section 3,
+details of usage are discussed.
+Section 4 compares
+.i sendmail
+to other internet mail routers,
+and an evaluation of
+.i sendmail
+is given in section 5,
+including future plans.
+.sh 1 "DESIGN GOALS"
+.pp
+Design goals for
+.i sendmail
+include:
+.np
+Compatibility with the existing mail programs,
+including Bell version 6 mail,
+Bell version 7 mail
+[UNIX83],
+Berkeley
+.i Mail
+[Shoens79],
+BerkNet mail
+[Schmidt79],
+and hopefully UUCP mail
+[Nowitz78a, Nowitz78b].
+ARPANET mail
+[Crocker77a, Postel77]
+was also required.
+.np
+Reliability, in the sense of guaranteeing
+that every message is correctly delivered
+or at least brought to the attention of a human
+for correct disposal;
+no message should ever be completely lost.
+This goal was considered essential
+because of the emphasis on mail in our environment.
+It has turned out to be one of the hardest goals to satisfy,
+especially in the face of the many anomalous message formats
+produced by various ARPANET sites.
+For example,
+certain sites generate improperly formated addresses,
+occasionally
+causing error-message loops.
+Some hosts use blanks in names,
+causing problems with
+UNIX mail programs that assume that an address
+is one word.
+The semantics of some fields
+are interpreted slightly differently
+by different sites.
+In summary,
+the obscure features of the ARPANET mail protocol
+really
+.i are
+used and
+are difficult to support,
+but must be supported.
+.np
+Existing software to do actual delivery
+should be used whenever possible.
+This goal derives as much from political and practical considerations
+as technical.
+.np
+Easy expansion to
+fairly complex environments,
+including multiple
+connections to a single network type
+(such as with multiple UUCP or Ether nets
+[Metcalfe76]).
+This goal requires consideration of the contents of an address
+as well as its syntax
+in order to determine which gateway to use.
+For example,
+the ARPANET is bringing up the
+TCP protocol to replace the old NCP protocol.
+No host at Berkeley runs both TCP and NCP,
+so it is necessary to look at the ARPANET host name
+to determine whether to route mail to an NCP gateway
+or a TCP gateway.
+.np
+Configuration should not be compiled into the code.
+A single compiled program should be able to run as is at any site
+(barring such basic changes as the CPU type or the operating system).
+We have found this seemingly unimportant goal
+to be critical in real life.
+Besides the simple problems that occur when any program gets recompiled
+in a different environment,
+many sites like to
+.q fiddle
+with anything that they will be recompiling anyway.
+.np
+.i Sendmail
+must be able to let various groups maintain their own mailing lists,
+and let individuals specify their own forwarding,
+without modifying the system alias file.
+.np
+Each user should be able to specify which mailer to execute
+to process mail being delivered for him.
+This feature allows users who are using specialized mailers
+that use a different format to build their environment
+without changing the system,
+and facilitates specialized functions
+(such as returning an
+.q "I am on vacation"
+message).
+.np
+Network traffic should be minimized
+by batching addresses to a single host where possible,
+without assistance from the user.
+.pp
+These goals motivated the architecture illustrated in figure 1.
+.(z
+.hl
+.ie t \
+\{\
+.ie !"\*(.T"" \
+\{\
+.PS
+boxht = 0.5i
+boxwid = 1.0i
+
+	down
+S:	[
+		right
+	S1:	box "sender1"
+		move
+		box "sender2"
+		move
+	S3:	box "sender3"
+	]
+	arrow
+SM:	box "sendmail" wid 2i ht boxht
+	arrow
+M:	[
+		right
+	M1:	box "mailer1"
+		move
+		box "mailer2"
+		move
+	M3:	box "mailer3"
+	]
+
+	arrow from S.S1.s to 1/2 between SM.nw and SM.n
+	arrow from S.S3.s to 1/2 between SM.n and SM.ne
+
+	arrow from 1/2 between SM.sw and SM.s to M.M1.n
+	arrow from 1/2 between SM.s and SM.se to M.M3.n
+.PE
+.\}
+.el \
+.	sp 18
+.\}
+.el \{\
+.(c
++---------+   +---------+   +---------+
+| sender1 |   | sender2 |   | sender3 |
++---------+   +---------+   +---------+
+     |  	   |             |
+     +----------+  +  +----------+
+		|  |  |
+		v  v  v
+            +-------------+
+            |   sendmail  |
+            +-------------+
+		|  |  |
+     +----------+  +  +----------+
+     |  	   |             |
+     v             v             v
++---------+   +---------+   +---------+
+| mailer1 |   | mailer2 |   | mailer3 |
++---------+   +---------+   +---------+
+.)c
+.\}
+
+.ce
+Figure 1 \*- Sendmail System Structure.
+.hl
+.)z
+The user interacts with a mail generating and sending program.
+When the mail is created,
+the generator calls
+.i sendmail ,
+which routes the message to the correct mailer(s).
+Since some of the senders may be network servers
+and some of the mailers may be network clients,
+.i sendmail
+may be used as an internet mail gateway.
+.sh 1 "OVERVIEW"
+.sh 2 "System Organization"
+.pp
+.i Sendmail
+neither interfaces with the user
+nor does actual mail delivery.
+Rather,
+it collects a message
+generated by a user interface program (UIP)
+such as Berkeley
+.i Mail ,
+MS
+[Crocker77b],
+or MH
+[Borden79],
+edits the message as required by the destination network,
+and calls appropriate mailers
+to do mail delivery or queueing for network transmission\**.
+.(f
+\**except when mailing to a file,
+when
+.i sendmail
+does the delivery directly.
+.)f
+This discipline allows the insertion of new mailers
+at minimum cost.
+In this sense 
+.i sendmail
+resembles the Message Processing Module (MPM)
+of [Postel79b].
+.sh 2 "Interfaces to the Outside World"
+.pp
+There are three ways
+.i sendmail
+can communicate with the outside world,
+both in receiving and in sending mail.
+These are using the conventional UNIX
+argument vector/return status,
+speaking SMTP over a pair of UNIX pipes,
+and speaking SMTP over an interprocess(or) channel.
+.sh 3 "Argument vector/exit status"
+.pp
+This technique is the standard UNIX method
+for communicating with the process.
+A list of recipients is sent in the argument vector,
+and the message body is sent on the standard input.
+Anything that the mailer prints
+is simply collected and sent back to the sender
+if there were any problems.
+The exit status from the mailer is collected
+after the message is sent,
+and a diagnostic is printed if appropriate.
+.sh 3 "SMTP over pipes"
+.pp
+The SMTP protocol
+[Postel82]
+can be used to run an interactive lock-step interface
+with the mailer.
+A subprocess is still created,
+but no recipient addresses are passed to the mailer
+via the argument list.
+Instead, they are passed one at a time
+in commands sent to the processes standard input.
+Anything appearing on the standard output
+must be a reply code
+in a special format.
+.sh 3 "SMTP over an IPC connection"
+.pp
+This technique is similar to the previous technique,
+except that it uses a 4.2bsd IPC channel
+[UNIX83].
+This method is exceptionally flexible
+in that the mailer need not reside
+on the same machine.
+It is normally used to connect to a sendmail process
+on another machine.
+.sh 2 "Operational Description"
+.pp
+When a sender wants to send a message,
+it issues a request to
+.i sendmail
+using one of the three methods described above.
+.i Sendmail
+operates in two distinct phases.
+In the first phase,
+it collects and stores the message.
+In the second phase,
+message delivery occurs.
+If there were errors during processing
+during the second phase,
+.i sendmail
+creates and returns a new message describing the error
+and/or returns an status code
+telling what went wrong.
+.sh 3 "Argument processing and address parsing"
+.pp
+If
+.i sendmail
+is called using one of the two subprocess techniques,
+the arguments
+are first scanned
+and option specifications are processed.
+Recipient addresses are then collected,
+either from the command line
+or from the SMTP
+RCPT command,
+and a list of recipients is created.
+Aliases are expanded at this step,
+including mailing lists.
+As much validation as possible of the addresses
+is done at this step:
+syntax is checked, and local addresses are verified,
+but detailed checking of host names and addresses
+is deferred until delivery.
+Forwarding is also performed
+as the local addresses are verified.
+.pp
+.i Sendmail
+appends each address
+to the recipient list after parsing.
+When a name is aliased or forwarded,
+the old name is retained in the list,
+and a flag is set that tells the delivery phase
+to ignore this recipient.
+This list is kept free from duplicates,
+preventing alias loops
+and duplicate messages deliverd to the same recipient,
+as might occur if a person is in two groups.
+.sh 3 "Message collection"
+.pp
+.i Sendmail
+then collects the message.
+The message should have a header at the beginning.
+No formatting requirements are imposed on the message
+except that they must be lines of text
+(i.e., binary data is not allowed).
+The header is parsed and stored in memory,
+and the body of the message is saved
+in a temporary file.
+.pp
+To simplify the program interface,
+the message is collected even if no addresses were valid.
+The message will be returned with an error.
+.sh 3 "Message delivery"
+.pp
+For each unique mailer and host in the recipient list,
+.i sendmail
+calls the appropriate mailer.
+Each mailer invocation sends to all users receiving the message on one host.
+Mailers that only accept one recipient at a time
+are handled properly.
+.pp
+The message is sent to the mailer
+using one of the same three interfaces
+used to submit a message to sendmail.
+Each copy of the message is
+prepended by a customized header.
+The mailer status code is caught and checked,
+and a suitable error message given as appropriate.
+The exit code must conform to a system standard
+or a generic message
+(\c
+.q "Service unavailable" )
+is given.
+.sh 3 "Queueing for retransmission"
+.pp
+If the mailer returned an status that
+indicated that it might be able to handle the mail later,
+.i sendmail
+will queue the mail and try again later.
+.sh 3 "Return to sender"
+.pp
+If errors occur during processing,
+.i sendmail
+returns the message to the sender for retransmission.
+The letter can be mailed back
+or written in the file
+.q dead.letter
+in the sender's home directory\**.
+.(f
+\**Obviously, if the site giving the error is not the originating
+site, the only reasonable option is to mail back to the sender.
+Also, there are many more error disposition options,
+but they only effect the error message \*- the
+.q "return to sender"
+function is always handled in one of these two ways.
+.)f
+.sh 2 "Message Header Editing"
+.pp
+Certain editing of the message header
+occurs automatically.
+Header lines can be inserted
+under control of the configuration file.
+Some lines can be merged;
+for example,
+a
+.q From:
+line and a
+.q Full-name:
+line can be merged under certain circumstances.
+.sh 2 "Configuration File"
+.pp
+Almost all configuration information is read at runtime
+from an ASCII file,
+encoding
+macro definitions
+(defining the value of macros used internally),
+header declarations
+(telling sendmail the format of header lines that it will process specially,
+i.e., lines that it will add or reformat),
+mailer definitions
+(giving information such as the location and characteristics
+of each mailer),
+and address rewriting rules
+(a limited production system to rewrite addresses
+which is used to parse and rewrite the addresses).
+.pp
+To improve performance when reading the configuration file,
+a memory image can be provided.
+This provides a
+.q compiled
+form of the configuration file.
+.sh 1 "USAGE AND IMPLEMENTATION"
+.sh 2 "Arguments"
+.pp
+Arguments may be flags and addresses.
+Flags set various processing options.
+Following flag arguments,
+address arguments may be given,
+unless we are running in SMTP mode.
+Addresses follow the syntax in RFC822
+[Crocker82]
+for ARPANET
+address formats.
+In brief, the format is:
+.np
+Anything in parentheses is thrown away
+(as a comment).
+.np
+Anything in angle brackets (\c
+.q "<\|>" )
+is preferred
+over anything else.
+This rule implements the ARPANET standard that addresses of the form
+.(b
+user name <machine-address>
+.)b
+will send to the electronic
+.q machine-address
+rather than the human
+.q "user name."
+.np
+Double quotes
+(\ "\ )
+quote phrases;
+backslashes quote characters.
+Backslashes are more powerful
+in that they will cause otherwise equivalent phrases
+to compare differently \*- for example,
+.i user
+and
+.i
+"user"
+.r
+are equivalent,
+but
+.i \euser
+is different from either of them.
+.pp
+Parentheses, angle brackets, and double quotes
+must be properly balanced and nested.
+The rewriting rules control remaining parsing\**.
+.(f
+\**Disclaimer: Some special processing is done
+after rewriting local names; see below.
+.)f
+.sh 2 "Mail to Files and Programs"
+.pp
+Files and programs are legitimate message recipients.
+Files provide archival storage of messages,
+useful for project administration and history.
+Programs are useful as recipients in a variety of situations,
+for example,
+to maintain a public repository of systems messages
+(such as the Berkeley
+.i msgs
+program,
+or the MARS system
+[Sattley78]).
+.pp
+Any address passing through the initial parsing algorithm
+as a local address
+(i.e, not appearing to be a valid address for another mailer)
+is scanned for two special cases.
+If prefixed by a vertical bar (\c
+.q \^|\^ )
+the rest of the address is processed as a shell command.
+If the user name begins with a slash mark (\c
+.q /\^ )
+the name is used as a file name,
+instead of a login name.
+.pp
+Files that have setuid or setgid bits set
+but no execute bits set
+have those bits honored if
+.i sendmail
+is running as root.
+.sh 2 "Aliasing, Forwarding, Inclusion"
+.pp
+.i Sendmail
+reroutes mail three ways.
+Aliasing applies system wide.
+Forwarding allows each user to reroute incoming mail
+destined for that account.
+Inclusion directs
+.i sendmail
+to read a file for a list of addresses,
+and is normally used
+in conjunction with aliasing.
+.sh 3 "Aliasing"
+.pp
+Aliasing maps names to address lists using a system-wide file.
+This file is indexed to speed access.
+Only names that parse as local
+are allowed as aliases;
+this guarantees a unique key
+(since there are no nicknames for the local host).
+.sh 3 "Forwarding"
+.pp
+After aliasing,
+recipients that are local and valid
+are checked for the existence of a
+.q .forward
+file in their home directory.
+If it exists,
+the message is
+.i not
+sent to that user,
+but rather to the list of users in that file.
+Often
+this list will contain only one address,
+and the feature will be used for network mail forwarding.
+.pp
+Forwarding also permits a user to specify a private incoming mailer.
+For example,
+forwarding to:
+.(b
+"\^|\|/usr/local/newmail myname"
+.)b
+will use a different incoming mailer.
+.sh 3 "Inclusion"
+.pp
+Inclusion is specified in RFC 733 [Crocker77a] syntax:
+.(b
+:Include: pathname
+.)b
+An address of this form reads the file specified by
+.i pathname
+and sends to all users listed in that file.
+.pp
+The intent is
+.i not
+to support direct use of this feature,
+but rather to use this as a subset of aliasing.
+For example,
+an alias of the form:
+.(b
+project: :include:/usr/project/userlist
+.)b
+is a method of letting a project maintain a mailing list
+without interaction with the system administration,
+even if the alias file is protected.
+.pp
+It is not necessary to rebuild the index on the alias database
+when a :include: list is changed.
+.sh 2 "Message Collection"
+.pp
+Once all recipient addresses are parsed and verified,
+the message is collected.
+The message comes in two parts:
+a message header and a message body,
+separated by a blank line.
+.pp
+The header is formatted as a series of lines
+of the form
+.(b
+	field-name: field-value
+.)b
+Field-value can be split across lines by starting the following
+lines with a space or a tab.
+Some header fields have special internal meaning,
+and have appropriate special processing.
+Other headers are simply passed through.
+Some header fields may be added automatically,
+such as time stamps.
+.pp
+The body is a series of text lines.
+It is completely uninterpreted and untouched,
+except that lines beginning with a dot
+have the dot doubled
+when transmitted over an SMTP channel.
+This extra dot is stripped by the receiver.
+.sh 2 "Message Delivery"
+.pp
+The send queue is ordered by receiving host
+before transmission
+to implement message batching.
+Each address is marked as it is sent
+so rescanning the list is safe.
+An argument list is built as the scan proceeds.
+Mail to files is detected during the scan of the send list.
+The interface to the mailer
+is performed using one of the techniques
+described in section 2.2.
+.pp
+After a connection is established,
+.i sendmail
+makes the per-mailer changes to the header
+and sends the result to the mailer.
+If any mail is rejected by the mailer,
+a flag is set to invoke the return-to-sender function
+after all delivery completes.
+.sh 2 "Queued Messages"
+.pp
+If the mailer returns a
+.q "temporary failure"
+exit status,
+the message is queued.
+A control file is used to describe the recipients to be sent to
+and various other parameters.
+This control file is formatted as a series of lines,
+each describing a sender,
+a recipient,
+the time of submission,
+or some other salient parameter of the message.
+The header of the message is stored
+in the control file,
+so that the associated data file in the queue
+is just the temporary file that was originally collected.
+.sh 2 "Configuration"
+.pp
+Configuration is controlled primarily by a configuration file
+read at startup.
+.i Sendmail
+should not need to be recomplied except
+.np
+To change operating systems
+(V6, V7/32V, 4BSD).
+.np
+To remove or insert the DBM
+(UNIX database)
+library.
+.np
+To change ARPANET reply codes.
+.np
+To add headers fields requiring special processing.
+.lp
+Adding mailers or changing parsing
+(i.e., rewriting)
+or routing information
+does not require recompilation.
+.pp
+If the mail is being sent by a local user,
+and the file
+.q .mailcf
+exists in the sender's home directory,
+that file is read as a configuration file
+after the system configuration file.
+The primary use of this feature is to add header lines.
+.pp
+The configuration file encodes macro definitions,
+header definitions,
+mailer definitions,
+rewriting rules,
+and options.
+.sh 3 Macros
+.pp
+Macros can be used in three ways.
+Certain macros transmit
+unstructured textual information
+into the mail system,
+such as the name
+.i sendmail
+will use to identify itself in error messages.
+Other macros transmit information from
+.i sendmail
+to the configuration file
+for use in creating other fields
+(such as argument vectors to mailers);
+e.g., the name of the sender,
+and the host and user
+of the recipient.
+Other macros are unused internally,
+and can be used as shorthand in the configuration file.
+.sh 3 "Header declarations"
+.pp
+Header declarations inform
+.i sendmail
+of the format of known header lines.
+Knowledge of a few header lines
+is built into
+.i sendmail ,
+such as the
+.q From:
+and
+.q Date:
+lines.
+.pp
+Most configured headers
+will be automatically inserted
+in the outgoing message
+if they don't exist in the incoming message.
+Certain headers are suppressed by some mailers.
+.sh 3 "Mailer declarations"
+.pp
+Mailer declarations tell
+.i sendmail
+of the various mailers available to it.
+The definition specifies the internal name of the mailer,
+the pathname of the program to call,
+some flags associated with the mailer,
+and an argument vector to be used on the call;
+this vector is macro-expanded before use.
+.sh 3 "Address rewriting rules"
+.pp
+The heart of address parsing in
+.i sendmail
+is a set of rewriting rules.
+These are an ordered list of pattern-replacement rules,
+(somewhat like a production system,
+except that order is critical),
+which are applied to each address.
+The address is rewritten textually until it is either rewritten
+into a special canonical form
+(i.e.,
+a (mailer, host, user)
+3-tuple,
+such as {arpanet, usc-isif, postel}
+representing the address
+.q "postel@usc-isif" ),
+or it falls off the end.
+When a pattern matches,
+the rule is reapplied until it fails.
+.pp
+The configuration file also supports the editing of addresses
+into different formats.
+For example,
+an address of the form:
+.(b
+ucsfcgl!tef
+.)b
+might be mapped into:
+.(b
+tef@ucsfcgl.UUCP
+.)b
+to conform to the domain syntax.
+Translations can also be done in the other direction.
+.sh 3 "Option setting"
+.pp
+There are several options that can be set
+from the configuration file.
+These include the pathnames of various support files,
+timeouts,
+default modes,
+etc.
+.sh 1 "COMPARISON WITH OTHER MAILERS"
+.sh 2 "Delivermail"
+.pp
+.i Sendmail
+is an outgrowth of
+.i delivermail .
+The primary differences are:
+.np
+Configuration information is not compiled in.
+This change simplifies many of the problems
+of moving to other machines.
+It also allows easy debugging of new mailers.
+.np
+Address parsing is more flexible.
+For example,
+.i delivermail
+only supported one gateway to any network,
+whereas
+.i sendmail
+can be sensitive to host names
+and reroute to different gateways.
+.np
+Forwarding and
+:include:
+features eliminate the requirement that the system alias file
+be writable by any user
+(or that an update program be written,
+or that the system administration make all changes).
+.np
+.i Sendmail
+supports message batching across networks
+when a message is being sent to multiple recipients.
+.np
+A mail queue is provided in
+.i sendmail.
+Mail that cannot be delivered immediately
+but can potentially be delivered later
+is stored in this queue for a later retry.
+The queue also provides a buffer against system crashes;
+after the message has been collected
+it may be reliably redelivered
+even if the system crashes during the initial delivery.
+.np
+.i Sendmail
+uses the networking support provided by 4.2BSD
+to provide a direct interface networks such as the ARPANET
+and/or Ethernet
+using SMTP (the Simple Mail Transfer Protocol)
+over a TCP/IP connection.
+.sh 2 "MMDF"
+.pp
+MMDF
+[Crocker79]
+spans a wider problem set than
+.i sendmail .
+For example,
+the domain of
+MMDF includes a
+.q "phone network"
+mailer, whereas
+.i sendmail
+calls on preexisting mailers in most cases.
+.pp
+MMDF and
+.i sendmail
+both support aliasing,
+customized mailers,
+message batching,
+automatic forwarding to gateways,
+queueing,
+and retransmission.
+MMDF supports two-stage timeout,
+which
+.i sendmail
+does not support.
+.pp
+The configuration for MMDF
+is compiled into the code\**.
+.(f
+\**Dynamic configuration tables are currently being considered
+for MMDF;
+allowing the installer to select either compiled
+or dynamic tables.
+.)f
+.pp
+Since MMDF does not consider backwards compatibility
+as a design goal,
+the address parsing is simpler but much less flexible.
+.pp
+It is somewhat harder to integrate a new channel\**
+.(f
+\**The MMDF equivalent of a
+.i sendmail
+.q mailer.
+.)f
+into MMDF.
+In particular,
+MMDF must know the location and format
+of host tables for all channels,
+and the channel must speak a special protocol.
+This allows MMDF to do additional verification
+(such as verifying host names)
+at submission time.
+.pp
+MMDF strictly separates the submission and delivery phases.
+Although
+.i sendmail
+has the concept of each of these stages,
+they are integrated into one program,
+whereas in MMDF they are split into two programs.
+.sh 2 "Message Processing Module"
+.pp
+The Message Processing Module (MPM)
+discussed by Postel [Postel79b]
+matches
+.i sendmail
+closely in terms of its basic architecture.
+However,
+like MMDF,
+the MPM includes the network interface software
+as part of its domain.
+.pp
+MPM also postulates a duplex channel to the receiver,
+as does MMDF,
+thus allowing simpler handling of errors
+by the mailer
+than is possible in
+.i sendmail .
+When a message queued by
+.i sendmail
+is sent,
+any errors must be returned to the sender
+by the mailer itself.
+Both MPM and MMDF mailers
+can return an immediate error response,
+and a single error processor can create an appropriate response.
+.pp
+MPM prefers passing the message as a structured object,
+with type-length-value tuples\**.
+.(f
+\**This is similar to the NBS standard.
+.)f
+Such a convention requires a much higher degree of cooperation
+between mailers than is required by
+.i sendmail .
+MPM also assumes a universally agreed upon internet name space
+(with each address in the form of a net-host-user tuple),
+which
+.i sendmail
+does not.
+.sh 1 "EVALUATIONS AND FUTURE PLANS"
+.pp
+.i Sendmail
+is designed to work in a nonhomogeneous environment.
+Every attempt is made to avoid imposing unnecessary constraints
+on the underlying mailers.
+This goal has driven much of the design.
+One of the major problems
+has been the lack of a uniform address space,
+as postulated in [Postel79a]
+and [Postel79b].
+.pp
+A nonuniform address space implies that a path will be specified
+in all addresses,
+either explicitly (as part of the address)
+or implicitly
+(as with implied forwarding to gateways).
+This restriction has the unpleasant effect of making replying to messages
+exceedingly difficult,
+since there is no one
+.q address
+for any person,
+but only a way to get there from wherever you are.
+.pp
+Interfacing to mail programs
+that were not initially intended to be applied
+in an internet environment
+has been amazingly successful,
+and has reduced the job to a manageable task.
+.pp
+.i Sendmail
+has knowledge of a few difficult environments
+built in.
+It generates ARPANET FTP/SMTP compatible error messages
+(prepended with three-digit numbers
+[Neigus73, Postel74, Postel82])
+as necessary,
+optionally generates UNIX-style
+.q From
+lines on the front of messages for some mailers,
+and knows how to parse the same lines on input.
+Also,
+error handling has an option customized for BerkNet.
+.pp
+The decision to avoid doing any type of delivery where possible
+(even, or perhaps especially, local delivery)
+has turned out to be a good idea.
+Even with local delivery,
+there are issues of the location of the mailbox,
+the format of the mailbox,
+the locking protocol used,
+etc.,
+that are best decided by other programs.
+One surprisingly major annoyance in many internet mailers
+is that the location and format of local mail is built in.
+The feeling seems to be that local mail is so common
+that it should be efficient.
+This feeling is not born out by
+our experience;
+on the contrary,
+the location and format of mailboxes seems to vary widely
+from system to system.
+.pp
+The ability to automatically generate a response to incoming mail
+(by forwarding mail to a program)
+seems useful
+(\c
+.q "I am on vacation until late August...." )
+but can create problems
+such as forwarding loops
+(two people on vacation whose programs send notes back and forth,
+for instance)
+if these programs are not well written.
+A program could be written to do standard tasks correctly,
+but this would solve the general case.
+.pp
+It might be desirable to implement some form of load limiting.
+I am unaware of any mail system that addresses this problem,
+nor am I aware of any reasonable solution at this time.
+.pp
+The configuration file is currently practically inscrutable;
+considerable convenience could be realized
+with a higher-level format.
+.pp
+It seems clear that common protocols will be changing soon
+to accommodate changing requirements and environments.
+These changes will include modifications to the message header
+(e.g., [NBS80])
+or to the body of the message itself
+(such as for multimedia messages
+[Postel80]).
+Experience indicates that
+these changes should be relatively trivial to integrate
+into the existing system.
+.pp
+In tightly coupled environments,
+it would be nice to have a name server
+such as Grapvine
+[Birrell82]
+integrated into the mail system.
+This would allow a site such as
+.q Berkeley
+to appear as a single host,
+rather than as a collection of hosts,
+and would allow people to move transparently among machines
+without having to change their addresses.
+Such a facility
+would require an automatically updated database
+and some method of resolving conflicts.
+Ideally this would be effective even without
+all hosts being under
+a single management.
+However,
+it is not clear whether this feature
+should be integrated into the
+aliasing facility
+or should be considered a
+.q "value added"
+feature outside
+.i sendmail
+itself.
+.pp
+As a more interesting case,
+the CSNET name server
+[Solomon81]
+provides an facility that goes beyond a single
+tightly-coupled environment.
+Such a facility would normally exist outside of
+.i sendmail
+however.
+.sh 0 "ACKNOWLEDGEMENTS"
+.pp
+Thanks are due to Kurt Shoens for his continual cheerful
+assistance and good advice,
+Bill Joy for pointing me in the correct direction
+(over and over),
+and Mark Horton for more advice,
+prodding,
+and many of the good ideas.
+Kurt and Eric Schmidt are to be credited
+for using
+.i delivermail
+as a server for their programs
+(\c
+.i Mail
+and BerkNet respectively)
+before any sane person should have,
+and making the necessary modifications
+promptly and happily.
+Eric gave me considerable advice about the perils
+of network software which saved me an unknown
+amount of work and grief.
+Mark did the original implementation of the DBM version
+of aliasing, installed the VFORK code,
+wrote the current version of
+.i rmail ,
+and was the person who really convinced me
+to put the work into
+.i delivermail
+to turn it into
+.i sendmail .
+Kurt deserves accolades for using
+.i sendmail
+when I was myself afraid to take the risk;
+how a person can continue to be so enthusiastic
+in the face of so much bitter reality is beyond me.
+.pp
+Kurt,
+Mark,
+Kirk McKusick,
+Marvin Solomon,
+and many others have reviewed this paper,
+giving considerable useful advice.
+.pp
+Special thanks are reserved for Mike Stonebraker at Berkeley
+and Bob Epstein at Britton-Lee,
+who both knowingly allowed me to put so much work into this
+project
+when there were so many other things I really should
+have been working on.
+.+c
+.ce
+REFERENCES
+.nr ii 1.5i
+.ip [Birrell82]
+Birrell, A. D.,
+Levin, R.,
+Needham, R. M.,
+and
+Schroeder, M. D.,
+.q "Grapevine: An Exercise in Distributed Computing."
+In
+.ul
+Comm. A.C.M. 25,
+4,
+April 82.
+.ip [Borden79]
+Borden, S.,
+Gaines, R. S.,
+and
+Shapiro, N. Z.,
+.ul
+The MH Message Handling System: Users' Manual.
+R-2367-PAF.
+Rand Corporation.
+October 1979.
+.ip [Crocker77a]
+Crocker, D. H.,
+Vittal, J. J.,
+Pogran, K. T.,
+and
+Henderson, D. A. Jr.,
+.ul
+Standard for the Format of ARPA Network Text Messages.
+RFC 733,
+NIC 41952.
+In [Feinler78].
+November 1977.
+.ip [Crocker77b]
+Crocker, D. H.,
+.ul
+Framework and Functions of the MS Personal Message System.
+R-2134-ARPA,
+Rand Corporation,
+Santa Monica, California.
+1977.
+.ip [Crocker79]
+Crocker, D. H.,
+Szurkowski, E. S.,
+and
+Farber, D. J.,
+.ul
+An Internetwork Memo Distribution Facility \*- MMDF.
+6th Data Communication Symposium,
+Asilomar.
+November 1979.
+.ip [Crocker82]
+Crocker, D. H.,
+.ul
+Standard for the Format of Arpa Internet Text Messages.
+RFC 822.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+August 1982.
+.ip [Metcalfe76]
+Metcalfe, R.,
+and
+Boggs, D.,
+.q "Ethernet: Distributed Packet Switching for Local Computer Networks" ,
+.ul
+Communications of the ACM 19,
+7.
+July 1976.
+.ip [Feinler78]
+Feinler, E.,
+and
+Postel, J.
+(eds.),
+.ul
+ARPANET Protocol Handbook.
+NIC 7104,
+Network Information Center,
+SRI International,
+Menlo Park, California.
+1978.
+.ip [NBS80]
+National Bureau of Standards,
+.ul
+Specification of a Draft Message Format Standard.
+Report No. ICST/CBOS 80-2.
+October 1980.
+.ip [Neigus73]
+Neigus, N.,
+.ul
+File Transfer Protocol for the ARPA Network.
+RFC 542, NIC 17759.
+In [Feinler78].
+August, 1973.
+.ip [Nowitz78a]
+Nowitz, D. A.,
+and
+Lesk, M. E.,
+.ul
+A Dial-Up Network of UNIX Systems.
+Bell Laboratories.
+In
+UNIX Programmer's Manual, Seventh Edition,
+Volume 2.
+August, 1978.
+.ip [Nowitz78b]
+Nowitz, D. A.,
+.ul
+Uucp Implementation Description.
+Bell Laboratories.
+In
+UNIX Programmer's Manual, Seventh Edition,
+Volume 2.
+October, 1978.
+.ip [Postel74]
+Postel, J.,
+and
+Neigus, N.,
+Revised FTP Reply Codes.
+RFC 640, NIC 30843.
+In [Feinler78].
+June, 1974.
+.ip [Postel77]
+Postel, J.,
+.ul
+Mail Protocol.
+NIC 29588.
+In [Feinler78].
+November 1977.
+.ip [Postel79a]
+Postel, J.,
+.ul
+Internet Message Protocol.
+RFC 753,
+IEN 85.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+March 1979.
+.ip [Postel79b]
+Postel, J. B.,
+.ul
+An Internetwork Message Structure.
+In
+.ul
+Proceedings of the Sixth Data Communications Symposium,
+IEEE.
+New York.
+November 1979.
+.ip [Postel80]
+Postel, J. B.,
+.ul
+A Structured Format for Transmission of Multi-Media Documents.
+RFC 767.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+August 1980.
+.ip [Postel82]
+Postel, J. B.,
+.ul
+Simple Mail Transfer Protocol.
+RFC821
+(obsoleting RFC788).
+Network Information Center,
+SRI International,
+Menlo Park, California.
+August 1982.
+.ip [Schmidt79]
+Schmidt, E.,
+.ul
+An Introduction to the Berkeley Network.
+University of California, Berkeley California.
+1979.
+.ip [Shoens79]
+Shoens, K.,
+.ul
+Mail Reference Manual.
+University of California, Berkeley.
+In UNIX Programmer's Manual,
+Seventh Edition,
+Volume 2C.
+December 1979.
+.ip [Sluizer81]
+Sluizer, S.,
+and
+Postel, J. B.,
+.ul
+Mail Transfer Protocol.
+RFC 780.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+May 1981.
+.ip [Solomon81]
+Solomon, M., Landweber, L., and Neuhengen, D.,
+.q "The Design of the CSNET Name Server."
+CS-DN-2,
+University of Wisconsin, Madison.
+November 1981.
+.ip [Su82]
+Su, Zaw-Sing,
+and
+Postel, Jon,
+.ul
+The Domain Naming Convention for Internet User Applications.
+RFC819.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+August 1982.
+.ip [UNIX83]
+.ul
+The UNIX Programmer's Manual, Seventh Edition,
+Virtual VAX-11 Version,
+Volume 1.
+Bell Laboratories,
+modified by the University of California,
+Berkeley, California.
+March, 1983.
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+(he syntax and semantics of resource identi\214cation change.)129.308 480.6 R
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+-.15(ve s)-.25 H .123(yntax and others use a right-associati).15 F .423 -.15
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+(rsity of California at).12 F(Berk)72 700.2 Q(ele)-.08 E 2(ya)-.12 G
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+(,a)-.4 G(s)500.11 96 Q .348(well as domain-based addressing.)72 108 R .347
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+(rsion of message formats between disparate net-).15 F -.1(wo)72 120 S 3.394
+(rks. In).1 F(short,)3.394 E/F2 10/Times-Italic@0 SF(sendmail)3.394 E F1 .894
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+.895(ork addressing)-.1 F(schemes.)72 132 Q .153
+(Section 1 discusses the design goals for)97 160.2 R F2(sendmail)2.653 E F1
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+172.2 R .644(In section 3, details of usage are discussed.)5.644 F .644
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+F(mail routers, and an e)72 184.2 Q -.25(va)-.25 G(luation of).25 E F2
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+(include:)2.5 E 12.5(\(1\) Compatibility)92 240.6 R 1.363(with the e)3.864 F
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+92 280.8 R 4.003(,i)-.65 G 4.003(nt)169.523 280.8 S 1.502
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+(brought to the attention of a human for correct disposal; no message should e)
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+118.66 352.8 R .111(one w)118.66 364.8 R 2.611(ord. The)-.1 F .111
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+-.15(ve)-.25 G 2.939(rp).15 G 2.939(ossible. This)387.654 405 R .439(goal deri)
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+(MH [Borden79], edits the message as required by the destination netw)102 459 R
+1.427(ork, and calls appropriate)-.1 F .28(mailers to do mail deli)102 473 R
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+(resembles the Message Processing)3.853 F(Module \(MPM\) of [Postel79b].)102
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+561.2 Q -.15(ve)-.15 G 2.5(rap).15 G(air of UNIX pipes, and speaking SMTP o)
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+(nterprocess\(or\) channel.)358.31 561.2 Q F0 2.5(2.2.1. Ar)102 585.2 R
+(gument v)-.1 E(ector/exit status)-.1 E F1 .52(This technique is the standard \
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+494.55 601.4 Q .442(of recipients is sent in the ar)117 613.4 R .441(gument v)
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+102 96 R -.1(ove)2.5 G 2.5(rp).1 G(ipes)186.52 96 Q/F1 10/Times-Roman@0 SF .774
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+F .075(the ar)117 136.2 R .075(gument list.)-.18 F .075(Instead, the)5.075 F
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+(re passed one at a time in commands sent to the processes stan-)249.805 136.2
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+.953(nel [UNIX83].)117 200.4 R .953(This method is e)5.953 F .953
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+(xible in that the mailer need not reside on the)-.15 F(same machine.)117 212.4
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+E F1 -.15(Fo)142 609.6 S 2.618(re).15 G .117
+(ach unique mailer and host in the recipient list,)162.798 609.6 R F2(sendmail)
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+(mission. The)117 176.4 R .632(letter can be mailed back or written in the \
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+(Certain editing of the message header occurs automatically)127 230.6 R 6.756
+(.H)-.65 G 1.756(eader lines can be inserted)391.456 230.6 R .41
+(under control of the con\214guration \214le.)102 242.6 R .41
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+(xample, a \231From:\232 line and)-.15 F 2.5<6199>102 254.6 S
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+(write addresses which is used to parse and re)-.25 F(write)-.25 E
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+(ve p)-.15 H 1.228(erformance when reading the con\214guration \214le, a memor\
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+(guments may be \215ags and addresses.)-.18 F .377(Flags set v)5.377 F .377
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+-.25 F(ar)102 459.2 Q .281(guments, address ar)-.18 F .281(guments may be gi)
+-.18 F -.15(ve)-.25 G .281(n, unless we are running in SMTP mode.).15 F .28
+(Addresses fol-)5.28 F(lo)102 471.2 Q 2.5(wt)-.25 G(he syntax in RFC822 [Crock)
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+(user name <machine-address>)173.66 531.8 Q(will send to the electronic \231ma\
+chine-address\232 rather than the human \231user name.)133.66 548 Q<9a>-.7 E
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+2.246(uote phrases; backslashes quote characters.)224.188 564.2 R 2.246
+(Backslashes are more)7.246 F(po)133.66 576.2 Q .654(werful in that the)-.25 F
+3.154(yw)-.15 G .655(ill cause otherwise equi)229.196 576.2 R -.25(va)-.25 G
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+(rentheses, angle brack).15 F 1.12
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+614.4 Q F1(.)269.67 618.4 Q .32 LW 76 646 72 646 DL 80 646 76 646 DL 84 646 80
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+DL 156 646 152 646 DL 160 646 156 646 DL 164 646 160 646 DL 168 646 164 646 DL
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+646 184 646 DL 192 646 188 646 DL 196 646 192 646 DL 200 646 196 646 DL 204 646
+200 646 DL 208 646 204 646 DL 212 646 208 646 DL 216 646 212 646 DL/F4 5
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+2.226(,i)-.52 G 2.226(ft)135.246 659.6 S .226(he site gi)142.36 659.6 R .226(v\
+ing the error is not the originating site, the only reasonable option is to ma\
+il back to the sender)-.2 F 4.227(.A)-.44 G(lso,)492.664 659.6 Q .191
+(there are man)72 669.2 R 2.191(ym)-.12 G .19(ore error disposition options, b)
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+(fect the error message \212 the \231return to sender\232 function is al)-.2 F
+-.08(wa)-.08 G .19(ys han-).08 F(dled in one of these tw)72 678.8 Q 2(ow)-.08 G
+(ays.)156.272 678.8 Q F4(3)93.6 689.2 Q F5
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+(torage of mes-)445.02 112.2 R .124
+(sages, useful for project administration and history)102 124.2 R 5.124(.P)-.65
+G .124(rograms are useful as recipients in a v)318.308 124.2 R .124(ariety of)
+-.25 F .69(situations, for e)102 136.2 R .691(xample, to maintain a public rep\
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+/Times-Italic@0 SF(msgs)102 148.2 Q F1(program, or the MARS system [Sattle)2.5
+E(y78]\).)-.15 E(An)127 164.4 Q 3.188(ya)-.15 G .688(ddress passing through th\
+e initial parsing algorithm as a local address \(i.e, not appear)151.698 164.4
+R(-)-.2 E .276(ing to be a v)102 176.4 R .276
+(alid address for another mailer\) is scanned for tw)-.25 F 2.776(os)-.1 G .277
+(pecial cases.)362.128 176.4 R .277(If pre\214x)5.277 F .277(ed by a v)-.15 F
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+.179(he rest of the address is processed as a shell command.)156.456 188.4 R
+.179(If the user name be)5.179 F .179(gins with a)-.15 F(slash mark \(\231/)102
+200.4 Q(\232\) the name is used as a \214le name, instead of a login name.).833
+E .241(Files that ha)127 216.6 R .541 -.15(ve s)-.2 H .241
+(etuid or setgid bits set b).15 F .241(ut no e)-.2 F -.15(xe)-.15 G .241
+(cute bits set ha).15 F .541 -.15(ve t)-.2 H .241(hose bits honored if).15 F F2
+(send-)2.742 E(mail)102 228.6 Q F1(is running as root.)2.5 E F0 2.5
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+127 268.8 Q F1 1.075(reroutes mail three w)3.575 F 3.575(ays. Aliasing)-.1 F
+1.074(applies system wide.)3.575 F -.15(Fo)6.074 G(rw).15 E 1.074(arding allo)
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+(user to reroute incoming mail destined for that account.)102 280.8 R .233
+(Inclusion directs)5.233 F F2(sendmail)2.733 E F1 .233(to read a \214le for)
+2.733 F 2.5(al)102 292.8 S
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+292.8 Q F0 2.5(3.3.1. Aliasing)102 316.8 R F1 1.554
+(Aliasing maps names to address lists using a system-wide \214le.)142 333 R
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+-.05 G(since there are no nicknames for the local host\).)137.02 357 Q F0 2.5
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+(-)-.2 E -.1(wa)117 409.2 S .493(rd\232 \214le in their home directory).1 F
+5.493(.I)-.65 G 2.994(fi)264.178 409.2 S 2.994(te)273.282 409.2 S .494
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+(the list of users in that \214le.)117 421.2 R .37
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+G 1.152(te incoming mailer).25 F 6.152(.F)-.55 G 1.152(or e)437.346 449.4 R
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+("| /)157 477.6 T(usr/local/ne)-.833 E(wmail myname")-.25 E(will use a dif)117
+493.8 Q(ferent incoming mailer)-.25 E(.)-.55 E F0 2.5(3.3.3. Inclusion)102
+517.8 R F1(Inclusion is speci\214ed in RFC 733 [Crock)142 534 Q(er77a] syntax:)
+-.1 E(:Include: pathname)157 550.2 Q .391
+(An address of this form reads the \214le speci\214ed by)117 566.4 R F2
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+(\214le.)117 578.4 Q .644(The intent is)142 594.6 R F2(not)3.144 E F1 .644
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+(ut rather to use this as a subset of)-.2 F 2.5(aliasing. F)117 606.6 R(or e)
+-.15 E(xample, an alias of the form:)-.15 E
+(project: :include:/usr/project/userlist)157 622.8 Q 1.93(is a method of letti\
+ng a project maintain a mailing list without interaction with the system)117
+639 R(administration, e)117 651 Q -.15(ve)-.25 G 2.5(ni).15 G 2.5(ft)203.54 651
+S(he alias \214le is protected.)212.15 651 Q 2.024(It is not necessary to reb)
+142 667.2 R 2.024(uild the inde)-.2 F 4.524(xo)-.15 G 4.524(nt)317.822 667.2 S
+2.025(he alias database when a :include: list is)330.126 667.2 R(changed.)117
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+(eri\214ed, the message is collected.)-.15 F .856(The message)5.857 F
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+(wing lines with a space or a tab)-.25 F 6.366(.S)-.4 G(ome)486.78 172.8 Q .211
+(header \214elds ha)102 184.8 R .511 -.15(ve s)-.2 H .211
+(pecial internal meaning, and ha).15 F .511 -.15(ve a)-.2 H .211
+(ppropriate special processing.).15 F .21(Other headers)5.21 F
+(are simply passed through.)102 196.8 Q
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+(uch as time stamps.)413.53 196.8 Q .86(The body is a series of te)127 213 R
+.861(xt lines.)-.15 F .861(It is completely uninterpreted and untouched, e)
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+(he dot doubled when transmitted o).15 F -.15(ve)-.15 G 3.929(ra).15 G 3.929
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+(The send queue is ordered by recei)127 277.2 R .029
+(ving host before transmission to implement message batch-)-.25 F 3.07
+(ing. Each)102 289.2 R .57(address is mark)3.07 F .57
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+(gument list is b)-.18 F .57(uilt as)-.2 F 1.138(the scan proceeds.)102 301.2 R
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+341.4 T .237(ail is rejected by the mailer).15 F 2.737(,a\215)-.4 G .237
+(ag is set to in)386.628 341.4 R -.2(vo)-.4 G .437 -.1(ke t).2 H .237
+(he return-).1 F(to-sender function after all deli)102 353.4 Q -.15(ve)-.25 G
+(ry completes.).15 E F0 2.5(3.6. Queued)87 377.4 R(Messages)2.5 E F1 .163
+(If the mailer returns a \231temporary f)127 393.6 R .163(ailure\232 e)-.1 F
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+(ontrol \214le is)455.336 393.6 R .85
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+(other salient parameter of the message.)102 429.6 R .776
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+(BSD\).)313.21 510 Q 12.5(\(2\) T)107 526.2 R 2.5(or)-.8 G(emo)149.8 526.2 Q .3
+-.15(ve o)-.15 H 2.5(ri).15 G(nsert the DBM \(UNIX database\) library)192.27
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+(dd headers \214elds requiring special processing.)150.91 558.6 Q .434
+(Adding mailers or changing parsing \(i.e., re)102 574.8 R .435
+(writing\) or routing information does not require recom-)-.25 F(pilation.)102
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+G 1.317(nd the \214le \231.mailcf\232 e)303.914 603 R 1.317
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+-.35 F(col\) o)133.66 172.2 Q -.15(ve)-.15 G 2.5(raT).15 G(CP/IP connection.)
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+(rograms.)162.19 417.4 Q F0 2.5(4.3. Message)87 441.4 R(Pr)2.5 E
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+(The Message Processing Module \(MPM\) discussed by Postel [Postel79b] matches)
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+(rrors must be returned to the sender by the mailer itself.)154.2 521.8 R .229
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+(gree of cooperation between mailers than is required)-.15 F(by)102 588 Q F2
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+(ve)-.25 G .296(rsally agreed upon internet name space \(with each address).15
+F(in the form of a net-host-user tuple\), which)102 600 Q F2(sendmail)2.5 E F1
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+642 152 642 DL 160 642 156 642 DL 164 642 160 642 DL 168 642 164 642 DL 172 642
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+(id imposing unnecessary constraints on the underlying mailers.).2 F 1.036
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+(tel79a] and [Postel79b].)87 148.2 Q 2.647(An)112 164.4 S .147(onuniform addre\
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+(restriction has the)2.973 F .493(unpleasant ef)87 188.4 R .493
+(fect of making replying to messages e)-.25 F .493(xceedingly dif)-.15 F .493
+(\214cult, since there is no one \231address\232)-.25 F(for an)87 200.4 Q 2.5
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+(October 1979.)5 E([Crock)72 204.6 Q 52.29(er77a] Crock)-.1 F(er)-.1 E 2.508
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+72 249 Q F2 2.12(The UNIX Pr)180 249 R -.1(og)-.45 G -.15(ra).1 G(mmer').15 E
+4.62(sM)-.4 G 2.12(anual, Se)298.3 249 R 2.12(venth Edition,)-.15 F F1 -.6(Vi)
+4.62 G 2.12(rtual V).6 F 2.12(AX-11 V)-1.35 F(ersion,)-1.11 E -1.29(Vo)180 261
+S 1.027(lume 1.)1.29 F 1.027(Bell Laboratories, modi\214ed by the Uni)6.027 F
+-.15(ve)-.25 G 1.027(rsity of California, Berk).15 F(e-)-.1 E(le)180 273 Q 1.3
+-.65(y, C)-.15 H 2.5(alifornia. March,).65 F(1983.)2.5 E EP
+%%Trailer
+end
+%%EOF
diff --git a/doc/op/Makefile b/doc/op/Makefile
new file mode 100644
index 0000000..e8f791a
--- /dev/null
+++ b/doc/op/Makefile
@@ -0,0 +1,13 @@
+#	@(#)Makefile	8.2 (Berkeley) 2/28/94
+
+DIR=	smm/08.sendmailop
+SRCS=	op.me
+MACROS=	-me
+
+all: op.ps
+
+op.ps: ${SRCS}
+	rm -f ${.TARGET}
+	${PIC} ${SRCS} | ${EQN} | ${ROFF} > ${.TARGET}
+
+.include <bsd.doc.mk>
diff --git a/doc/op/op.me b/doc/op/op.me
new file mode 100644
index 0000000..60bc113
--- /dev/null
+++ b/doc/op/op.me
@@ -0,0 +1,8211 @@
+.\" Copyright (c) 1983, 1995 Eric P. Allman
+.\" Copyright (c) 1983, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)op.me	8.106 (Berkeley) 10/20/97
+.\"
+.\" eqn op.me | pic | troff -me
+.eh 'SMM:08-%''Sendmail Installation and Operation Guide'
+.oh 'Sendmail Installation and Operation Guide''SMM:08-%'
+.\" SD is lib if sendmail is installed in /usr/lib, sbin if in /usr/sbin
+.ds SD sbin
+.\" SB is bin if newaliases/mailq are installed in /usr/bin, ucb if in /usr/ucb
+.ds SB bin
+.nr si 3n
+.de $0
+.(x
+.in \\$3u*3n
+.ti -3n
+\\$2.  \\$1
+.)x
+..
+.de $C
+.(x
+.in 0
+\\$1 \\$2.  \\$3
+.)x
+..
+.sc
+.+c
+.(l C
+.sz 16
+.b SENDMAIL
+.sz 12
+.sp
+.b "INSTALLATION AND OPERATION GUIDE"
+.sz 10
+.sp
+.r
+Eric Allman
+eric@Sendmail.ORG
+.sp
+Version 8.106
+.sp
+For Sendmail Version 8.8
+.)l
+.sp 2
+.pp
+.i Sendmail
+implements a general purpose internetwork mail routing facility
+under the UNIX\(rg
+operating system.
+It is not tied to any one transport protocol \*-
+its function may be likened to a crossbar switch,
+relaying messages from one domain into another.
+In the process,
+it can do a limited amount of message header editing
+to put the message into a format that is appropriate
+for the receiving domain.
+All of this is done under the control of a configuration file.
+.pp
+Due to the requirements of flexibility
+for
+.i sendmail ,
+the configuration file can seem somewhat unapproachable.
+However, there are only a few basic configurations
+for most sites,
+for which standard configuration files have been supplied.
+Most other configurations
+can be built by adjusting an existing configuration files
+incrementally.
+.pp
+.i Sendmail
+is based on
+RFC821 (Simple Mail Transport Protocol),
+RFC822 (Internet Mail Format Protocol),
+RFC1123 (Internet Host Requirements),
+RFC1521 (MIME),
+RFC1651 (SMTP Service Extensions),
+RFC1891 (SMTP Delivery Status Notifications),
+RFC1892 (Multipart/Report),
+RFC1893 (Mail System Status Codes),
+RFC1894 (Delivery Status Notifications),
+and
+RFC1985 (SMTP Service Extension for Remote Message Queue Starting).
+However, since
+.i sendmail
+is designed to work in a wider world,
+in many cases it can be configured to exceed these protocols.
+These cases are described herein.
+.pp
+Although
+.i sendmail
+is intended to run
+without the need for monitoring,
+it has a number of features
+that may be used to monitor or adjust the operation
+under unusual circumstances.
+These features are described.
+.pp
+Section one describes how to do a basic
+.i sendmail
+installation.
+Section two
+explains the day-to-day information you should know
+to maintain your mail system.
+If you have a relatively normal site,
+these two sections should contain sufficient information
+for you to install
+.i sendmail
+and keep it happy.
+Section three
+describes some parameters that may be safely tweaked.
+Section four
+has information regarding the command line arguments.
+Section five
+contains the nitty-gritty information about the configuration
+file.
+This section is for masochists
+and people who must write their own configuration file.
+Section six
+describes configuration that can be done at compile time.
+Section seven
+gives a brief description of differences
+in this version of
+.i sendmail .
+The appendixes give a brief
+but detailed explanation of a number of features
+not described in the rest of the paper.
+.pp
+.b WARNING:
+Several major changes were introduced in version 8.7.
+You should not attempt to use this document
+for prior versions of
+.i sendmail .
+.bp
+.rs
+.sp |4i
+.ce 2
+This page intentionally left blank;
+replace it with a blank sheet for double-sided output.
+.bp 7
+.sh 1 "BASIC INSTALLATION"
+.pp
+There are two basic steps to installing
+.i sendmail .
+The hard part is to build the configuration table.
+This is a file that
+.i sendmail
+reads when it starts up
+that describes the mailers it knows about,
+how to parse addresses,
+how to rewrite the message header,
+and the settings of various options.
+Although the configuration table is quite complex,
+a configuration can usually be built
+by adjusting an existing off-the-shelf configuration.
+The second part is actually doing the installation,
+i.e., creating the necessary files, etc.
+.pp
+The remainder of this section will describe the installation of
+.i sendmail
+assuming you can use one of the existing configurations
+and that the standard installation parameters are acceptable.
+All pathnames and examples
+are given from the root of the
+.i sendmail
+subtree,
+normally
+.i /usr/src/usr.\*(SD/sendmail
+on 4.4BSD.
+.pp
+If you are loading this off the tape,
+continue with the next section.
+If you have a running binary already on your system,
+you should probably skip to section 1.2.
+.sh 2 "Compiling Sendmail"
+.pp
+All
+.i sendmail
+source is in the
+.i src
+subdirectory.
+If you are running on a 4.4BSD system,
+compile by typing
+.q make .
+On other systems, you may have to make some other adjustments.
+On most systems,
+you can do the appropriate compilation by typing
+.(b
+sh makesendmail
+.)b
+This will leave the binary in an appropriately named subdirectory.
+It works for multiple object versions
+compiled out of the same directory.
+.sh 3 "Tweaking the Makefile"
+.pp
+.i Sendmail
+supports two different formats
+for the local (on disk) version of databases,
+notably the
+.i aliases
+database.
+At least one of these should be defined if at all possible.
+.nr ii 1i
+.ip NDBM
+The ``new DBM'' format,
+available on nearly all systems around today.
+This was the preferred format prior to 4.4BSD.
+It allows such complex things as multiple databases
+and closing a currently open database.
+.ip NEWDB
+The new database package from Berkeley.
+If you have this, use it.
+It allows
+long records,
+multiple open databases,
+real in-memory caching,
+and so forth.
+You can define this in conjunction with one of the other two;
+if you do,
+old databases are read,
+but when a new database is created it will be in NEWDB format.
+As a nasty hack,
+if you have NEWDB, NDBM, and NIS defined,
+and if the alias file name includes the substring
+.q /yp/ ,
+.i sendmail
+will create both new and old versions of the alias file
+during a
+.i newalias
+command.
+This is required because the Sun NIS/YP system
+reads the DBM version of the alias file.
+It's ugly as sin,
+but it works.
+.lp
+If neither of these are defined,
+.i sendmail
+reads the alias file into memory on every invocation.
+This can be slow and should be avoided.
+There are also several methods for remote database access:
+.ip NIS
+Sun's Network Information Services (formerly YP).
+.ip NISPLUS
+Sun's NIS+ services.
+.ip NETINFO
+NeXT's NetInfo service.
+.ip HESIOD
+Hesiod service (from Athena).
+.lp
+Other compilation flags are set in conf.h
+and should be predefined for you
+unless you are porting to a new environment.
+.sh 3 "Compilation and installation"
+.pp
+After making the local system configuration described above,
+You should be able to compile and install the system.
+The script
+.q makesendmail
+is the best approach on most systems:
+.(b
+sh makesendmail
+.)b
+This will use
+.i uname (1)
+to select the correct Makefile for your environment.
+.pp
+You may be able to install using
+.(b
+sh makesendmail install
+.)b
+This should install the binary in
+/usr/\*(SD
+and create links from
+/usr/\*(SB/newaliases
+and
+/usr/\*(SB/mailq
+to
+/usr/\*(SD/sendmail.
+On 4.4BSD systems it will also format and install man pages.
+.sh 2 "Configuration Files"
+.pp
+.i Sendmail
+cannot operate without a configuration file.
+The configuration defines the mail delivery mechanisms understood at this site,
+how to access them,
+how to forward email to remote mail systems,
+and a number of tuning parameters.
+This configuration file is detailed
+in the later portion of this document.
+.pp
+The
+.i sendmail
+configuration can be daunting at first.
+The world is complex,
+and the mail configuration reflects that.
+The distribution includes an m4-based configuration package
+that hides a lot of the complexity.
+.pp
+These configuration files are simpler than old versions
+largely because the world has become simpler;
+in particular,
+text-based host files are officially eliminated,
+obviating the need to
+.q hide
+hosts behind a registered internet gateway.
+.pp
+These files also assume that most of your neighbors
+use domain-based UUCP addressing;
+that is,
+instead of naming hosts as
+.q host!user
+they will use
+.q host.domain!user .
+The configuration files can be customized to work around this,
+but it is more complex.
+.pp
+Our configuration files are processed by
+.i m4
+to facilitate local customization;
+the directory
+.i cf
+of the
+.i sendmail
+distribution directory
+contains the source files.
+This directory contains several subdirectories:
+.nr ii 1i
+.ip cf
+Both site-dependent and site-independent descriptions of hosts.
+These can be literal host names
+(e.g.,
+.q ucbvax.mc )
+when the hosts are gateways
+or more general descriptions
+(such as
+.q "tcpproto.mc"
+as a general description of an SMTP-connected host
+or
+.q "uucpproto.mc"
+as a general description of a UUCP-connected host).
+Files ending
+.b \&.mc
+(``Master Configuration'')
+are the input descriptions;
+the output is in the corresponding
+.b \&.cf
+file.
+The general structure of these files is described below.
+.ip domain
+Site-dependent subdomain descriptions.
+These are tied to the way your organization wants to do addressing.
+For example,
+.b domain/cs.exposed.m4
+is our description for hosts in the CS.Berkeley.EDU subdomain
+that want their individual hostname to be externally visible;
+.b domain/cs.hidden.m4
+is the same except that the hostname is hidden
+(everything looks like it comes from CS.Berkeley.EDU).
+These are referenced using the
+.sm DOMAIN
+.b m4
+macro in the
+.b \&.mc
+file.
+.ip feature
+Definitions of specific features that some particular host in your site
+might want.
+These are referenced using the
+.sm FEATURE
+.b m4
+macro.
+An example feature is
+use_cw_file
+(which tells
+.i sendmail
+to read an /etc/sendmail.cw file on startup
+to find the set of local names).
+.ip hack
+Local hacks, referenced using the
+.sm HACK
+.b m4
+macro.
+Try to avoid these.
+The point of having them here is to make it clear that they smell.
+.ip m4
+Site-independent
+.i m4 (1)
+include files that have information common to all configuration files.
+This can be thought of as a
+.q #include
+directory.
+.ip mailer
+Definitions of mailers,
+referenced using the
+.sm MAILER
+.b m4
+macro.
+The mailer types that are known in this distribution are
+fax,
+local,
+smtp,
+uucp,
+and usenet.
+For example, to include support for the UUCP-based mailers,
+use
+.q MAILER(uucp) .
+.ip ostype
+Definitions describing various operating system environments
+(such as the location of support files).
+These are referenced using the
+.sm OSTYPE
+.b m4
+macro.
+.ip sh
+Shell files used by the
+.b m4
+build process.
+You shouldn't have to mess with these.
+.ip siteconfig
+Local UUCP connectivity information.
+They normally contain lists of site information, for example:
+.(b
+SITE(contessa)
+SITE(hoptoad)
+SITE(nkainc)
+SITE(well)
+.)b
+They are referenced using the SITECONFIG macro:
+.(b
+SITECONFIG(site.config.file, name_of_site, X)
+.)b
+where
+.i X
+is the macro/class name to use.
+It can be U
+(indicating locally connected hosts)
+or one of W, X, or Y
+for up to three remote UUCP hubs.
+This directory has been supplanted by the mailertable feature;
+any new configurations should use that feature to do UUCP
+(and other) routing.
+.pp
+If you are in a new domain
+(e.g., a company),
+you will probably want to create a
+cf/domain
+file for your domain.
+This consists primarily of relay definitions:
+for example, Berkeley's domain definition
+defines relays for
+BitNET,
+CSNET,
+and UUCP.
+Of these,
+only the UUCP relay is particularly specific
+to Berkeley.
+All of these are internet-style domain names.
+Please check to make certain they are reasonable for your domain.
+.pp
+Subdomains at Berkeley are also represented in the
+cf/domain
+directory.
+For example,
+the domain
+cs-exposed
+is the Computer Science subdomain with the local hostname shown
+to other users;
+cs-hidden
+makes users appear to be from the CS.Berkeley.EDU subdomain
+(with no local host information included).
+You will probably have to update this directory
+to be appropriate for your domain.
+.pp
+You will have to use or create
+.b \&.mc
+files in the
+.i cf/cf
+subdirectory for your hosts.
+This is detailed in the
+cf/README
+file.
+.sh 2 "Details of Installation Files"
+.pp
+This subsection describes the files that
+comprise the
+.i sendmail
+installation.
+.sh 3 "/usr/\*(SD/sendmail"
+.pp
+The binary for
+.i sendmail
+is located in /usr/\*(SD\**.
+.(f
+\**This is usually
+/usr/sbin
+on 4.4BSD and newer systems;
+many systems install it in
+/usr/lib.
+I understand it is in /usr/ucblib
+on System V Release 4.
+.)f
+It should be setuid root.
+For security reasons,
+/, /usr, and /usr/\*(SD
+should be owned by root, mode 755\**.
+.(f
+\**Some vendors ship them owned by bin;
+this creates a security hole that is not actually related to
+.i sendmail .
+Other important directories that should have restrictive ownerships
+and permissions are
+/bin, /usr/bin, /etc, /usr/etc, /lib, and /usr/lib.
+.)f
+.sh 3 "/etc/sendmail.cf"
+.pp
+This is the configuration file for
+.i sendmail \**.
+.(f
+\**Actually, the pathname varies depending on the operating system;
+/etc is the preferred directory.
+Some older systems install it in
+.b /usr/lib/sendmail.cf ,
+and I've also seen it in
+.b /usr/ucblib
+and
+.b /etc/mail .
+If you want to move this file,
+change
+.i src/conf.h .
+.)f
+This and /etc/sendmail.pid
+are the only non-library file names compiled into
+.i sendmail \**.
+.(f
+\**The system libraries can reference other files;
+in particular, system library subroutines that
+.i sendmail
+calls probably reference
+.i /etc/passwd
+and
+.i /etc/resolv.conf .
+.)f
+.pp
+The configuration file is normally created
+using the distribution files described above.
+If you have a particularly unusual system configuration
+you may need to create a special version.
+The format of this file is detailed in later sections
+of this document.
+.sh 3 "/usr/\*(SB/newaliases"
+.pp
+The
+.i newaliases
+command should just be a link to
+.i sendmail :
+.(b
+rm \-f /usr/\*(SB/newaliases
+ln \-s /usr/\*(SD/sendmail /usr/\*(SB/newaliases
+.)b
+This can be installed in whatever search path you prefer
+for your system.
+.sh 3 "/usr/\*(SB/hoststat"
+.pp
+The
+.i hoststat
+command should just be a link to 
+.i sendmail ,
+in a fashion similar to
+.i newaliases .
+This command lists the status of the last mail transaction
+with all remote hosts.
+It functions only when the
+.b HostStatusDirectory
+option is set.
+.sh 3 "/usr/\*(SB/purgestat"
+.pp
+This command is also a link to
+.i sendmail .
+It flushes all information that is stored in the
+.b HostStatusDirectory
+tree.
+.sh 3 "/var/spool/mqueue"
+.pp
+The directory
+.i /var/spool/mqueue
+should be created to hold the mail queue.
+This directory should be mode 700
+and owned by root.
+.pp
+The actual path of this directory
+is defined in the
+.b Q
+option of the
+.i sendmail.cf
+file.
+.sh 3 "/var/spool/mqueue/.hoststat"
+.pp
+This is a typical value for the
+.b HostStatusDirectory
+option,
+containing one file per host
+that this sendmail has chatted with recently.
+It is normally a subdirectory of
+.i mqueue .
+.sh 3 "/etc/aliases*"
+.pp
+The system aliases are held in
+.q /etc/aliases .
+A sample is given in
+.q lib/aliases
+which includes some aliases which
+.i must
+be defined:
+.(b
+cp lib/aliases /etc/aliases
+.i "edit /etc/aliases"
+.)b
+You should extend this file with any aliases that are apropos to your system.
+.pp
+Normally
+.i sendmail
+looks at a version of these files maintained by the
+.i dbm \|(3)
+or
+.i db \|(3)
+routines.
+These are stored either in
+.q /etc/aliases.dir
+and
+.q /etc/aliases.pag
+or
+.q /etc/aliases.db
+depending on which database package you are using.
+These can initially be created as empty files,
+but they will have to be initialized promptly.
+These should be mode 644:
+.(b
+cp /dev/null /etc/aliases.dir
+cp /dev/null /etc/aliases.pag
+chmod 644 /etc/aliases.*
+newaliases
+.)b
+The
+.i db
+routines preset the mode reasonably,
+so this step can be skipped.
+The actual path of this file
+is defined in the
+.b AliasFile
+option of the
+.i sendmail.cf
+file.
+.sh 3 "/etc/rc"
+.pp
+It will be necessary to start up the
+.i sendmail
+daemon when your system reboots.
+This daemon performs two functions:
+it listens on the SMTP socket for connections
+(to receive mail from a remote system)
+and it processes the queue periodically
+to insure that mail gets delivered when hosts come up.
+.pp
+Add the following lines to
+.q /etc/rc
+(or
+.q /etc/rc.local
+as appropriate)
+in the area where it is starting up the daemons:
+.(b
+if [ \-f /usr/\*(SD/sendmail \-a \-f /etc/sendmail.cf ]; then
+	(cd /var/spool/mqueue; rm \-f [lnx]f*)
+	/usr/\*(SD/sendmail \-bd \-q30m &
+	echo \-n ' sendmail' >/dev/console
+fi
+.)b
+The
+.q cd
+and
+.q rm
+commands insure that all lock files have been removed;
+extraneous lock files may be left around
+if the system goes down in the middle of processing a message.
+The line that actually invokes
+.i sendmail
+has two flags:
+.q \-bd
+causes it to listen on the SMTP port,
+and
+.q \-q30m
+causes it to run the queue every half hour.
+.pp
+Some people use a more complex startup script,
+removing zero length qf files and df files for which there is no qf file.
+For example, see Figure 1
+for an example of a complex startup script.
+.(z
+.hl
+# remove zero length qf files
+for qffile in qf*
+do
+	if [ \-r $qffile ]
+	then
+		if [ ! \-s $qffile ]
+		then
+			echo \-n " <zero: $qffile>" > /dev/console
+			rm \-f $qffile
+		fi
+	fi
+done
+# rename tf files to be qf if the qf does not exist
+for tffile in tf*
+do
+	qffile=`echo $tffile | sed 's/t/q/'`
+	if [ \-r $tffile \-a ! \-f $qffile ]
+	then
+		echo \-n " <recovering: $tffile>" > /dev/console
+		mv $tffile $qffile
+	else
+		echo \-n " <extra: $tffile>" > /dev/console
+		rm \-f $tffile
+	fi
+done
+# remove df files with no corresponding qf files
+for dffile in df*
+do
+	qffile=`echo $dffile | sed 's/d/q/'`
+	if [ \-r $dffile \-a ! \-f $qffile ]
+	then
+		echo \-n " <incomplete: $dffile>" > /dev/console
+		mv $dffile `echo $dffile | sed 's/d/D/'`
+	fi
+done
+# announce files that have been saved during disaster recovery
+for xffile in [A-Z]f*
+do
+	echo \-n " <panic: $xffile>" > /dev/console
+done
+.sp
+.ce
+Figure 1 \(em A complex startup script
+.hl
+.)z
+.pp
+If you are not running a version of UNIX
+that supports Berkeley TCP/IP,
+do not include the
+.b \-bd
+flag.
+.sh 3 "/usr/lib/sendmail.hf"
+.pp
+This is the help file used by the SMTP
+.b HELP
+command.
+It should be copied from
+.q lib/sendmail.hf :
+.(b
+cp lib/sendmail.hf /usr/lib
+.)b
+The actual path of this file
+is defined in the
+.b H
+option of the
+.i sendmail.cf
+file.
+.sh 3 "/etc/sendmail.st"
+.pp
+If you wish to collect statistics
+about your mail traffic,
+you should create the file
+.q /etc/sendmail.st :
+.(b
+cp /dev/null /etc/sendmail.st
+chmod 666 /etc/sendmail.st
+.)b
+This file does not grow.
+It is printed with the program
+.q mailstats/mailstats.c.
+The actual path of this file
+is defined in the
+.b S
+option of the
+.i sendmail.cf
+file.
+.sh 3 "/usr/\*(SB/mailq"
+.pp
+If
+.i sendmail
+is invoked as
+.q mailq,
+it will simulate the
+.b \-bp
+flag
+(i.e.,
+.i sendmail
+will print the contents of the mail queue;
+see below).
+This should be a link to /usr/\*(SD/sendmail.
+.sh 1 "NORMAL OPERATIONS"
+.sh 2 "The System Log"
+.pp
+The system log is supported by the
+.i syslogd \|(8)
+program.
+All messages from
+.i sendmail
+are logged under the
+.sm LOG_MAIL
+facility\**.
+.(f
+\**Except on Ultrix,
+which does not support facilities in the syslog.
+.)f
+.sh 3 "Format"
+.pp
+Each line in the system log
+consists of a timestamp,
+the name of the machine that generated it
+(for logging from several machines
+over the local area network),
+the word
+.q sendmail: ,
+and a message\**.
+.(f
+\**This format may vary slightly if your vendor has changed
+the syntax.
+.)f
+Most messages are a sequence of
+.i name \c
+=\c
+.i value
+pairs.
+.pp
+The two most common lines are logged when a message is processed.
+The first logs the receipt of a message;
+there will be exactly one of these per message.
+Some fields may be omitted if they do not contain interesting information.
+Fields are:
+.ip from
+The envelope sender address.
+.ip size
+The size of the message in bytes.
+.ip class
+The class (i.e., numeric precedence) of the message.
+.ip pri
+The initial message priority (used for queue sorting).
+.ip nrcpts
+The number of envelope recipients for this message
+(after aliasing and forwarding).
+.ip msgid
+The message id of the message (from the header).
+.ip proto
+The protocol used to receive this message (e.g., ESMTP or UUCP)
+.ip relay
+The machine from which it was received.
+.lp
+There is also one line logged per delivery attempt
+(so there can be several per message if delivery is deferred
+or there are multiple recipients).
+Fields are:
+.ip to
+A comma-separated list of the recipients to this mailer.
+.ip ctladdr
+The ``controlling user'', that is, the name of the user
+whose credentials we use for delivery.
+.ip delay
+The total delay between the time this message was received
+and the time it was delivered.
+.ip xdelay
+The amount of time needed in this delivery attempt
+(normally indicative of the speed of the connection).
+.ip mailer
+The name of the mailer used to deliver to this recipient.
+.ip relay
+The name of the host that actually accepted (or rejected) this recipient.
+.ip stat
+The delivery status.
+.lp
+Not all fields are present in all messages;
+for example, the relay is not listed for local deliveries.
+.sh 3 "Levels"
+.pp
+If you have
+.i syslogd \|(8)
+or an equivalent installed,
+you will be able to do logging.
+There is a large amount of information that can be logged.
+The log is arranged as a succession of levels.
+At the lowest level
+only extremely strange situations are logged.
+At the highest level,
+even the most mundane and uninteresting events
+are recorded for posterity.
+As a convention,
+log levels under ten
+are considered generally
+.q useful;
+log levels above 64
+are reserved for debugging purposes.
+Levels from 11\-64 are reserved for verbose information
+that some sites might want.
+.pp
+A complete description of the log levels
+is given in section
+.\" XREF
+4.6.
+.sh 2 "Dumping State"
+.pp
+You can ask
+.i sendmail
+to log a dump of the open files
+and the connection cache
+by sending it a
+.sm SIGUSR1
+signal.
+The results are logged at
+.sm LOG_DEBUG
+priority.
+.sh 2 "The Mail Queue"
+.pp
+Sometimes a host cannot handle a message immediately.
+For example, it may be down or overloaded, causing it to refuse connections.
+The sending host is then expected to save this message in
+its mail queue
+and attempt to deliver it later.
+.pp
+Under normal conditions the mail queue will be processed transparently.
+However, you may find that manual intervention is sometimes necessary.
+For example,
+if a major host is down for a period of time
+the queue may become clogged.
+Although
+.i sendmail
+ought to recover gracefully when the host comes up,
+you may find performance unacceptably bad in the meantime.
+.sh 3 "Printing the queue"
+.pp
+The contents of the queue can be printed
+using the
+.i mailq
+command
+(or by specifying the
+.b \-bp
+flag to
+.i sendmail ):
+.(b
+mailq
+.)b
+This will produce a listing of the queue id's,
+the size of the message,
+the date the message entered the queue,
+and the sender and recipients.
+.sh 3 "Forcing the queue"
+.pp
+.i Sendmail
+should run the queue automatically
+at intervals.
+The algorithm is to read and sort the queue,
+and then to attempt to process all jobs in order.
+When it attempts to run the job,
+.i sendmail
+first checks to see if the job is locked.
+If so, it ignores the job.
+.pp
+There is no attempt to insure that only one queue processor
+exists at any time,
+since there is no guarantee that a job cannot take forever
+to process
+(however,
+.i sendmail
+does include heuristics to try to abort jobs
+that are taking absurd amounts of time;
+technically, this violates RFC 821, but is blessed by RFC 1123).
+Due to the locking algorithm,
+it is impossible for one job to freeze the entire queue.
+However,
+an uncooperative recipient host
+or a program recipient
+that never returns
+can accumulate many processes in your system.
+Unfortunately,
+there is no completely general way to solve this.
+.pp
+In some cases,
+you may find that a major host going down
+for a couple of days
+may create a prohibitively large queue.
+This will result in
+.i sendmail
+spending an inordinate amount of time
+sorting the queue.
+This situation can be fixed by moving the queue to a temporary place
+and creating a new queue.
+The old queue can be run later when the offending host returns to service.
+.pp
+To do this,
+it is acceptable to move the entire queue directory:
+.(b
+cd /var/spool
+mv mqueue omqueue; mkdir mqueue; chmod 700 mqueue
+.)b
+You should then kill the existing daemon
+(since it will still be processing in the old queue directory)
+and create a new daemon.
+.pp
+To run the old mail queue,
+run the following command:
+.(b
+/usr/\*(SD/sendmail \-oQ/var/spool/omqueue \-q
+.)b
+The
+.b \-oQ
+flag specifies an alternate queue directory
+and the
+.b \-q
+flag says to just run every job in the queue.
+If you have a tendency toward voyeurism,
+you can use the
+.b \-v
+flag to watch what is going on.
+.pp
+When the queue is finally emptied,
+you can remove the directory:
+.(b
+rmdir /var/spool/omqueue
+.)b
+.sh 2 "Disk Based Connection Information"
+.pp
+.i Sendmail
+stores a large amount of information about each remote system it
+has connected to in memory. It is now possible to preserve some 
+of this information on disk as well, by using the
+.b HostStatusDirectory
+option, so that it may be shared between several invocations of
+.i sendmail .
+This allows mail to be queued immediately or skipped during a queue run if
+there has been a recent failure in connecting to a remote machine. 
+.pp
+Additionally enabling
+.b SingleThreadDelivery
+has the added effect of single-threading mail delivery to a destination.
+This can be quite helpful
+if the remote machine is running an SMTP server that is easily overloaded
+or cannot accept more than a single connection at a time,
+but can cause some messages to be punted to a future queue run.
+It also applies to
+.i all
+hosts, so setting this because you have one machine on site
+that runs some software that is easily overrun
+can cause mail to other hosts to be slowed down.
+If this option is set,
+you probably want to set the
+.b MinQueueAge
+option as well and run the queue fairly frequently;
+this will cause hosts that are skipped because another
+.i sendmail
+instance is talking to it to be tried again soon.
+.pp
+The disk based host information is stored in a subdirectory of of the 
+.b mqueue
+directory called
+.b \&.hoststat \**.
+.(f
+\**This is the usual value of the
+.b HostStatusDirectory
+option;
+it can, of course, go anywhere you like in your filesystem.
+.)f
+Removing this directory and its subdirectories has an effect similar to
+the 
+.i purgestat
+command and is completely safe.
+The information in these directories can
+be perused with the
+.i hoststat
+command, which will indicate the host name, the last access, and the
+status of that access.
+An asterisk in the left most column indicates that a
+.i sendmail
+process currently has the host locked for mail delivery.
+.pp
+The disk based connection information is treated the same way as memory based 
+connection information for the purpose of timeouts.
+By default, information about host failures is valid for 30 minutes.
+This can be adjusted with
+the
+.b Timeout.hoststatus
+option.
+.pp
+The connection information stored on disk may be purged at any time
+with the 
+.i purgestat
+command or by invoking sendmail with the 
+.b \-bH
+switch.
+The connection information may be viewed with the
+.i hoststat
+command or by invoking sendmail with the
+.b \-bh
+switch.
+.sh 2 "The Service Switch"
+.pp
+The implementation of certain system services
+such as host and user name lookup
+is controlled by the service switch.
+If the host operating system supports such a switch
+.i sendmail
+will use the native version.
+Ultrix, Solaris, and DEC OSF/1 are examples of such systems.
+.pp
+If the underlying operating system does not support a service switch
+(e.g., SunOS, HP-UX, BSD)
+then
+.i sendmail
+will provide a stub implementation.
+The
+.b ServiceSwitchFile
+option points to the name of a file that has the service definitions
+Each line has the name of a service
+and the possible implementations of that service.
+For example, the file:
+.(b
+hosts	dns files nis
+aliases	files nis
+.)b
+will ask
+.i sendmail
+to look for hosts in the Domain Name System first.
+If the requested host name is not found,
+it tries local files,
+and if that fails it tries NIS.
+Similarly,
+when looking for aliases
+it will try the local files first
+followed by NIS.
+.pp
+Service switches are not completely integrated.
+For example, despite the fact that the host entry listed in the above example
+specifies to look in NIS,
+on SunOS this won't happen because the system implementation of
+.i gethostbyname \|(3)
+doesn't understand this.
+If there is enough demand
+.i sendmail
+may reimplement
+.i gethostbyname \|(3),
+.i gethostbyaddr \|(3),
+.i getpwent \|(3),
+and the other system routines that would be necessary
+to make this work seamlessly.
+.sh 2 "The Alias Database"
+.pp
+After recipient addresses are read from the SMTP connection
+or command line
+they are parsed by ruleset 0,
+which must resolve to a
+{\c
+.i mailer ,
+.i host ,
+.i user }
+triple.
+If the flags selected by the
+.i mailer
+includes the
+.b A
+(aliasable) flag,
+the
+.i user
+part of the triple is looked up as the key
+(i.e., the left hand side)
+into the alias database
+If there is a match, the address is deleted from the send queue
+and all addresses on the right hand side of the alias
+are added in place of the alias that was found.
+This is a recursive operation,
+so aliases found in the right hand side of the alias
+are similarly expanded.
+.pp
+The alias database exists in two forms.
+One is a text form,
+maintained in the file
+.i /etc/aliases.
+The aliases are of the form
+.(b
+name: name1, name2, ...
+.)b
+Only local names may be aliased;
+e.g.,
+.(b
+eric@prep.ai.MIT.EDU: eric@CS.Berkeley.EDU
+.)b
+will not have the desired effect
+(except on prep.ai.MIT.EDU,
+and they probably don't want me)\**.
+.(f
+\**Actually, any mailer that has the `A' mailer flag set
+will permit aliasing;
+this is normally limited to the local mailer.
+.)f
+Aliases may be continued by starting any continuation lines
+with a space or a tab.
+Blank lines and lines beginning with a sharp sign
+(\c
+.q # )
+are comments.
+.pp
+The second form is processed by the
+.i ndbm \|(3)\**
+.(f
+\**The
+.i gdbm
+package probably works as well.
+.)f
+or
+.i db \|(3)
+library.
+This form is in the files
+.i /etc/aliases.dir
+and
+.i /etc/aliases.pag.
+This is the form that
+.i sendmail
+actually uses to resolve aliases.
+This technique is used to improve performance.
+.pp
+The control of search order is actually set by the service switch.
+Essentially, the entry
+.(b
+OAswitch:aliases
+.)b
+is always added as the first alias entry;
+also, the first alias file name without a class
+(e.g., without
+.q nis:
+on the front)
+will be used as the name of the file for a ``files'' entry
+in the aliases switch.
+For example, if the configuration file contains
+.(b
+OA/etc/aliases
+.)b
+and the service switch contains
+.(b
+aliases	nis files nisplus
+.)b
+then aliases will first be searched in the NIS database,
+then in /etc/aliases,
+then in the NIS+ database.
+.pp
+You can also use
+.sm NIS -based
+alias files.
+For example, the specification:
+.(b
+OA/etc/aliases
+OAnis:mail.aliases@my.nis.domain
+.)b
+will first search the /etc/aliases file
+and then the map named
+.q mail.aliases
+in
+.q my.nis.domain .
+Warning: if you build your own
+.sm NIS -based
+alias files,
+be sure to provide the
+.b \-l
+flag to
+.i makedbm (8)
+to map upper case letters in the keys to lower case;
+otherwise, aliases with upper case letters in their names
+won't match incoming addresses.
+.pp
+Additional flags can be added after the colon
+exactly like a
+.b K
+line \(em for example:
+.(b
+OAnis:\-N mail.aliases@my.nis.domain
+.)b
+will search the appropriate NIS map and always include null bytes in the key.
+.sh 3 "Rebuilding the alias database"
+.pp
+The DB or DBM version of the database
+may be rebuilt explicitly by executing the command
+.(b
+newaliases
+.)b
+This is equivalent to giving
+.i sendmail
+the
+.b \-bi
+flag:
+.(b
+/usr/\*(SD/sendmail \-bi
+.)b
+.pp
+If the
+.b RebuildAliases
+(old
+.b D )
+option is specified in the configuration,
+.i sendmail
+will rebuild the alias database automatically
+if possible
+when it is out of date.
+Auto-rebuild can be dangerous
+on heavily loaded machines
+with large alias files;
+if it might take more than the rebuild timeout
+(option
+.b AliasWait ,
+old
+.b a ,
+which is normally five minutes)
+to rebuild the database,
+there is a chance that several processes will start the rebuild process
+simultaneously.
+.pp
+If you have multiple aliases databases specified,
+the
+.b \-bi
+flag rebuilds all the database types it understands
+(for example, it can rebuild NDBM databases but not NIS databases).
+.sh 3 "Potential problems"
+.pp
+There are a number of problems that can occur
+with the alias database.
+They all result from a
+.i sendmail
+process accessing the DBM version
+while it is only partially built.
+This can happen under two circumstances:
+One process accesses the database
+while another process is rebuilding it,
+or the process rebuilding the database dies
+(due to being killed or a system crash)
+before completing the rebuild.
+.pp
+Sendmail has three techniques to try to relieve these problems.
+First, it ignores interrupts while rebuilding the database;
+this avoids the problem of someone aborting the process
+leaving a partially rebuilt database.
+Second,
+it locks the database source file during the rebuild \(em
+but that may not work over NFS or if the file is unwritable.
+Third,
+at the end of the rebuild
+it adds an alias of the form
+.(b
+@: @
+.)b
+(which is not normally legal).
+Before
+.i sendmail
+will access the database,
+it checks to insure that this entry exists\**.
+.(f
+\**The
+.b AliasWait
+option is required in the configuration
+for this action to occur.
+This should normally be specified.
+.)f
+.sh 3 "List owners"
+.pp
+If an error occurs on sending to a certain address,
+say
+.q \fIx\fP ,
+.i sendmail
+will look for an alias
+of the form
+.q owner-\fIx\fP
+to receive the errors.
+This is typically useful
+for a mailing list
+where the submitter of the list
+has no control over the maintenance of the list itself;
+in this case the list maintainer would be the owner of the list.
+For example:
+.(b
+unix-wizards: eric@ucbarpa, wnj@monet, nosuchuser,
+	sam@matisse
+owner-unix-wizards: unix-wizards-request
+unix-wizards-request: eric@ucbarpa
+.)b
+would cause
+.q eric@ucbarpa
+to get the error that will occur
+when someone sends to
+unix-wizards
+due to the inclusion of
+.q nosuchuser
+on the list.
+.pp
+List owners also cause the envelope sender address to be modified.
+The contents of the owner alias are used if they point to a single user,
+otherwise the name of the alias itself is used.
+For this reason, and to obey Internet conventions,
+the
+.q owner-
+address normally points at the
+.q -request
+address; this causes messages to go out with the typical Internet convention
+of using ``\c
+.i list -request''
+as the return address.
+.sh 2 "User Information Database"
+.pp
+If you have a version of
+.i sendmail
+with the user information database
+compiled in,
+and you have specified one or more databases using the
+.b U
+option,
+the databases will be searched for a
+.i user :maildrop
+entry.
+If found, the mail will be sent to the specified address.
+.sh 2 "Per-User Forwarding (.forward Files)"
+.pp
+As an alternative to the alias database,
+any user may put a file with the name
+.q .forward
+in his or her home directory.
+If this file exists,
+.i sendmail
+redirects mail for that user
+to the list of addresses listed in the .forward file.
+For example, if the home directory for user
+.q mckusick
+has a .forward file with contents:
+.(b
+mckusick@ernie
+kirk@calder
+.)b
+then any mail arriving for
+.q mckusick
+will be redirected to the specified accounts.
+.pp
+Actually, the configuration file defines a sequence of filenames to check.
+By default, this is the user's .forward file,
+but can be defined to be more generally using the
+.b J
+option.
+If you change this,
+you will have to inform your user base of the change;
+\&.forward is pretty well incorporated into the collective subconscious.
+.sh 2 "Special Header Lines"
+.pp
+Several header lines have special interpretations
+defined by the configuration file.
+Others have interpretations built into
+.i sendmail
+that cannot be changed without changing the code.
+These builtins are described here.
+.sh 3 "Errors-To:"
+.pp
+If errors occur anywhere during processing,
+this header will cause error messages to go to
+the listed addresses.
+This is intended for mailing lists.
+.pp
+The Errors-To: header was created in the bad old days
+when UUCP didn't understand the distinction between an envelope and a header;
+this was a hack to provide what should now be passed
+as the envelope sender address.
+It should go away.
+It is only used if the
+.b UseErrorsTo
+option is set.
+.pp
+The Errors-To: header is official deprecated
+and will go away in a future release.
+.sh 3 "Apparently-To:"
+.pp
+RFC 822 requires at least one recipient field
+(To:, Cc:, or Bcc: line)
+in every message.
+If a message comes in with no recipients listed in the message
+then
+.i sendmail
+will adjust the header based on the
+.q NoRecipientAction
+option.
+One of the possible actions is to add an
+.q "Apparently-To:"
+header line for any recipients it is aware of.
+This is not put in as a standard recipient line
+to warn any recipients that the list is not complete.
+.pp
+The Apparently-To: header is non-standard
+and is deprecated.
+.sh 3 "Precedence"
+.pp
+The Precedence: header can be used as a crude control of message priority.
+It tweaks the sort order in the queue
+and can be configured to change the message timeout values.
+.sh 2 "IDENT Protocol Support"
+.pp
+.i Sendmail
+supports the IDENT protocol as defined in RFC 1413.
+Although this enhances identification
+of the author of an email message
+by doing a ``call back'' to the originating system to include
+the owner of a particular TCP connection
+in the audit trail
+it is in no sense perfect;
+a determined forger can easily spoof the IDENT protocol.
+The following description is excerpted from RFC 1413:
+.ba +5
+.lp
+6.  Security Considerations
+.lp
+The information returned by this protocol is at most as trustworthy
+as the host providing it OR the organization operating the host.  For
+example, a PC in an open lab has few if any controls on it to prevent
+a user from having this protocol return any identifier the user
+wants.  Likewise, if the host has been compromised the information
+returned may be completely erroneous and misleading.
+.lp
+The Identification Protocol is not intended as an authorization or
+access control protocol.  At best, it provides some additional
+auditing information with respect to TCP connections.  At worst, it
+can provide misleading, incorrect, or maliciously incorrect
+information.
+.lp
+The use of the information returned by this protocol for other than
+auditing is strongly discouraged.  Specifically, using Identification
+Protocol information to make access control decisions - either as the
+primary method (i.e., no other checks) or as an adjunct to other
+methods may result in a weakening of normal host security.
+.lp
+An Identification server may reveal information about users,
+entities, objects or processes which might normally be considered
+private.  An Identification server provides service which is a rough
+analog of the CallerID services provided by some phone companies and
+many of the same privacy considerations and arguments that apply to
+the CallerID service apply to Identification.  If you wouldn't run a
+"finger" server due to privacy considerations you may not want to run
+this protocol.
+.ba
+.lp
+In some cases your system may not work properly with IDENT support
+due to a bug in the TCP/IP implementation.
+The symptoms will be that for some hosts
+the SMTP connection will be closed
+almost immediately.
+If this is true or if you do not want to use IDENT,
+you should set the IDENT timeout to zero;
+this will disable the IDENT protocol.
+.sh 1 "ARGUMENTS"
+.pp
+The complete list of arguments to
+.i sendmail
+is described in detail in Appendix A.
+Some important arguments are described here.
+.sh 2 "Queue Interval"
+.pp
+The amount of time between forking a process
+to run through the queue
+is defined by the
+.b \-q
+flag.
+If you run with delivery mode set to
+.b i
+or
+.b b
+this can be relatively large,
+since it will only be relevant
+when a host that was down comes back up.
+If you run in
+.b q
+mode
+it should be relatively short,
+since it defines the maximum amount of time that a message
+may sit in the queue.
+(See also the MinQueueAge option.)
+.pp
+RFC 1123 section 5.3.1.1 says that this value should be at least 30 minutes
+(although that probably doesn't make sense if you use ``queue-only'' mode).
+.sh 2 "Daemon Mode"
+.pp
+If you allow incoming mail over an IPC connection,
+you should have a daemon running.
+This should be set by your
+.i /etc/rc
+file using the
+.b \-bd
+flag.
+The
+.b \-bd
+flag and the
+.b \-q
+flag may be combined in one call:
+.(b
+/usr/\*(SD/sendmail \-bd \-q30m
+.)b
+.pp
+An alternative approach is to invoke sendmail from
+.i inetd (8)
+(use the
+.b \-bs
+flag to ask sendmail to speak SMTP on its standard input and output).
+This works and allows you to wrap
+.i sendmail
+in a TCP wrapper program,
+but may be a bit slower since the configuration file
+has to be re-read on every message that comes in.
+If you do this, you still need to have a
+.i sendmail
+running to flush the queue:
+.(b
+/usr/\*(SD/sendmail \-q30m
+.)b
+.sh 2 "Forcing the Queue"
+.pp
+In some cases you may find that the queue has gotten clogged for some reason.
+You can force a queue run
+using the
+.b \-q
+flag (with no value).
+It is entertaining to use the
+.b \-v
+flag (verbose)
+when this is done to watch what happens:
+.(b
+/usr/\*(SD/sendmail \-q \-v
+.)b
+.pp
+You can also limit the jobs to those with a particular queue identifier,
+sender, or recipient
+using one of the queue modifiers.
+For example,
+.q \-qRberkeley
+restricts the queue run to jobs that have the string
+.q berkeley
+somewhere in one of the recipient addresses.
+Similarly,
+.q \-qSstring
+limits the run to particular senders and
+.q \-qIstring
+limits it to particular queue identifiers.
+.sh 2 "Debugging"
+.pp
+There are a fairly large number of debug flags
+built into
+.i sendmail .
+Each debug flag has a number and a level,
+where higher levels means to print out more information.
+The convention is that levels greater than nine are
+.q absurd,
+i.e.,
+they print out so much information that you wouldn't normally
+want to see them except for debugging that particular piece of code.
+Debug flags are set using the
+.b \-d
+option;
+the syntax is:
+.(b
+.ta \w'debug-option  'u
+debug-flag:	\fB\-d\fP debug-list
+debug-list:	debug-option [ , debug-option ]*
+debug-option:	debug-range [ . debug-level ]
+debug-range:	integer | integer \- integer
+debug-level:	integer
+.)b
+where spaces are for reading ease only.
+For example,
+.(b
+\-d12	Set flag 12 to level 1
+\-d12.3	Set flag 12 to level 3
+\-d3\-17	Set flags 3 through 17 to level 1
+\-d3\-17.4	Set flags 3 through 17 to level 4
+.)b
+For a complete list of the available debug flags
+you will have to look at the code
+(they are too dynamic to keep this documentation up to date).
+.sh 2 "Changing the Values of Options"
+.pp
+Options can be overridden using the
+.b \-o
+or
+.b \-O
+command line flags.
+For example,
+.(b
+/usr/\*(SD/sendmail \-oT2m
+.)b
+sets the
+.b T
+(timeout) option to two minutes
+for this run only;
+the equivalent line using the long option name is
+.(b
+/usr/\*(SD/sendmail -OTimeout.queuereturn=2m
+.)b
+.pp
+Some options have security implications.
+Sendmail allows you to set these,
+but relinquishes its setuid root permissions thereafter\**.
+.(f
+\**That is, it sets its effective uid to the real uid;
+thus, if you are executing as root,
+as from root's crontab file or during system startup
+the root permissions will still be honored.
+.)f
+.sh 2 "Trying a Different Configuration File"
+.pp
+An alternative configuration file
+can be specified using the
+.b \-C
+flag; for example,
+.(b
+/usr/\*(SD/sendmail \-Ctest.cf \-oQ/tmp/mqueue
+.)b
+uses the configuration file
+.i test.cf
+instead of the default
+.i /etc/sendmail.cf.
+If the
+.b \-C
+flag has no value
+it defaults to
+.i sendmail.cf
+in the current directory.
+.pp
+.i Sendmail
+gives up its setuid root permissions
+when you use this flag, so it is common to use a publicly writable directory
+(such as /tmp)
+as the spool directory (QueueDirectory or Q option) while testing.
+.sh 2 "Logging Traffic"
+.pp
+Many SMTP implementations do not fully implement the protocol.
+For example, some personal computer based SMTPs
+do not understand continuation lines in reply codes.
+These can be very hard to trace.
+If you suspect such a problem, you can set traffic logging using the
+.b \-X
+flag.
+For example,
+.(b
+/usr/\*(SD/sendmail \-X /tmp/traffic \-bd
+.)b
+will log all traffic in the file
+.i /tmp/traffic .
+.pp
+This logs a lot of data very quickly and should
+.b NEVER
+be used
+during normal operations.
+After starting up such a daemon,
+force the errant implementation to send a message to your host.
+All message traffic in and out of
+.i sendmail ,
+including the incoming SMTP traffic,
+will be logged in this file.
+.sh 2 "Testing Configuration Files"
+.pp
+When you build a configuration table,
+you can do a certain amount of testing
+using the
+.q "test mode"
+of
+.i sendmail .
+For example,
+you could invoke
+.i sendmail
+as:
+.(b
+sendmail \-bt \-Ctest.cf
+.)b
+which would read the configuration file
+.q test.cf
+and enter test mode.
+In this mode,
+you enter lines of the form:
+.(b
+rwset address
+.)b
+where
+.i rwset
+is the rewriting set you want to use
+and
+.i address
+is an address to apply the set to.
+Test mode shows you the steps it takes
+as it proceeds,
+finally showing you the address it ends up with.
+You may use a comma separated list of rwsets
+for sequential application of rules to an input.
+For example:
+.(b
+3,1,21,4 monet:bollard
+.)b
+first applies ruleset three to the input
+.q monet:bollard.
+Ruleset one is then applied to the output of ruleset three,
+followed similarly by rulesets twenty-one and four.
+.pp
+If you need more detail,
+you can also use the
+.q \-d21
+flag to turn on more debugging.
+For example,
+.(b
+sendmail \-bt \-d21.99
+.)b
+turns on an incredible amount of information;
+a single word address
+is probably going to print out several pages worth of information.
+.pp
+You should be warned that internally,
+.i sendmail
+applies ruleset 3 to all addresses.
+In test mode
+you will have to do that manually.
+For example, older versions allowed you to use
+.(b
+0 bruce@broadcast.sony.com
+.)b
+This version requires that you use:
+.(b
+3,0 bruce@broadcast.sony.com
+.)b
+.pp
+As of version 8.7,
+some other syntaxes are available in test mode:
+.bu
+\&.D\|x\|value
+defines macro
+.i x
+to have the indicated
+.i value .
+This is useful when debugging rules that use the
+.b $& \c
+.i x
+syntax.
+.bu
+\&.C\|c\|value
+adds the indicated
+.i value
+to class
+.i c .
+.bu
+\&.S\|ruleset
+dumps the contents of the indicated ruleset.
+.bu
+\-d\|debug-spec
+is equivalent to the command-line flag.
+.sh 2 "Persistent Host Status Information"
+.pp
+When
+.b HostStatusDirectory
+is enabled,
+information about the status of hosts is maintained on disk
+and can thus be shared between different instantiations of
+.i sendmail .
+The status of the last connection with each remote host
+may be viewed with the command:
+.(b
+sendmail \-bh
+.)b
+This information may be flushed with the command:
+.(b
+sendmail \-bH
+.)b
+Flushing the information prevents new
+.i sendmail 
+processes from loading it,
+but does not prevent existing processes from using the status information
+that they already have.
+.sh 1 "TUNING"
+.pp
+There are a number of configuration parameters
+you may want to change,
+depending on the requirements of your site.
+Most of these are set
+using an option in the configuration file.
+For example,
+the line
+.q "O Timeout.queuereturn=5d"
+sets option
+.q Timeout.queuereturn
+to the value
+.q 5d
+(five days).
+.pp
+Most of these options have appropriate defaults for most sites.
+However,
+sites having very high mail loads may find they need to tune them
+as appropriate for their mail load.
+In particular,
+sites experiencing a large number of small messages,
+many of which are delivered to many recipients,
+may find that they need to adjust the parameters
+dealing with queue priorities.
+.pp
+All versions of
+.i sendmail
+prior to 8.7
+had single character option names.
+As of 8.7,
+options have long (multi-character names).
+Although old short names are still accepted,
+most new options do not have short equivalents.
+.pp
+This section only describes the options you are most likely
+to want to tweak;
+read section
+.\"XREF
+5
+for more details.
+.sh 2 "Timeouts"
+.pp
+All time intervals are set
+using a scaled syntax.
+For example,
+.q 10m
+represents ten minutes, whereas
+.q 2h30m
+represents two and a half hours.
+The full set of scales is:
+.(b
+.ta 4n
+s	seconds
+m	minutes
+h	hours
+d	days
+w	weeks
+.)b
+.sh 3 "Queue interval"
+.pp
+The argument to the
+.b \-q
+flag
+specifies how often a sub-daemon will run the queue.
+This is typically set to between fifteen minutes
+and one hour.
+RFC 1123 section 5.3.1.1 recommends that this be at least 30 minutes.
+.sh 3 "Read timeouts"
+.pp
+Timeouts all have option names
+.q Timeout.\fIsuboption\fP .
+The recognized
+.i suboption s,
+their default values, and the minimum values
+allowed by RFC 1123 section 5.3.2 are:
+.nr ii 1i
+.ip connect
+The time to wait for an SMTP connection to open
+(the
+.i connect (2)
+system call)
+[0, unspecified].
+If zero, uses the kernel default.
+In no case can this option extend the timeout
+longer than the kernel provides, but it can shorten it.
+This is to get around kernels that provide an absurdly long connection timeout
+(90 minutes in one case).
+.ip iconnect
+The same as
+.i connect,
+except it applies only to the initial attempt to connect to a host
+for a given message
+[0, unspecified].
+The concept is that this should be very short (a few seconds);
+hosts that are well connected and responsive will thus be serviced immediately.
+Hosts that are slow will not hold up other deliveries in the initial
+delivery attempt.
+.ip initial
+The wait for the initial 220 greeting message
+[5m, 5m].
+.ip helo
+The wait for a reply from a HELO or EHLO command
+[5m, unspecified].
+This may require a host name lookup, so
+five minutes is probably a reasonable minimum.
+.ip mail\(dg
+The wait for a reply from a MAIL command
+[10m, 5m].
+.ip rcpt\(dg
+The wait for a reply from a RCPT command
+[1h, 5m].
+This should be long
+because it could be pointing at a list
+that takes a long time to expand
+(see below).
+.ip datainit\(dg
+The wait for a reply from a DATA command
+[5m, 2m].
+.ip datablock\(dg
+The wait for reading a data block
+(that is, the body of the message).
+[1h, 3m].
+This should be long because it also applies to programs
+piping input to
+.i sendmail
+which have no guarantee of promptness.
+.ip datafinal\(dg
+The wait for a reply from the dot terminating a message.
+[1h, 10m].
+If this is shorter than the time actually needed
+for the receiver to deliver the message,
+duplicates will be generated.
+This is discussed in RFC 1047.
+.ip rset
+The wait for a reply from a RSET command
+[5m, unspecified].
+.ip quit
+The wait for a reply from a QUIT command
+[2m, unspecified].
+.ip misc
+The wait for a reply from miscellaneous (but short) commands
+such as NOOP (no-operation) and VERB (go into verbose mode).
+[2m, unspecified].
+.ip command\(dg
+In server SMTP,
+the time to wait for another command.
+[1h, 5m].
+.ip ident
+The timeout waiting for a reply to an IDENT query
+[30s\**, unspecified].
+.(f
+\**On some systems the default is zero to turn the protocol off entirely.
+.)f
+.lp
+For compatibility with old configuration files,
+if no
+.i suboption
+is specified,
+all the timeouts marked with \(dg are set to the indicated value.
+.pp
+Many of the RFC 1123 minimum values
+may well be too short.
+.i Sendmail
+was designed to the RFC 822 protocols,
+which did not specify read timeouts;
+hence, versions of
+.i sendmail
+prior to version 8.1 did not guarantee to reply to messages promptly.
+In particular, a
+.q RCPT
+command specifying a mailing list
+will expand and verify the entire list;
+a large list on a slow system
+may easily take more than five minutes\**.
+.(f
+\**This verification includes looking up every address
+with the name server;
+this involves network delays,
+and can in some cases can be considerable.
+.)f
+I recommend a one hour timeout \*-
+since a communications failure during the RCPT phase is rare,
+a long timeout is not onerous
+and may ultimately help reduce network load
+and duplicated messages.
+.pp
+For example, the lines:
+.(b
+O Timeout.command=25m
+O Timeout.datablock=3h
+.)b
+sets the server SMTP command timeout to 25 minutes
+and the input data block timeout to three hours.
+.sh 3 "Message timeouts"
+.pp
+After sitting in the queue for a few days,
+a message will time out.
+This is to insure that at least the sender is aware
+of the inability to send a message.
+The timeout is typically set to five days.
+It is sometimes considered convenient to also send a warning message
+if the message is in the queue longer than a few hours
+(assuming you normally have good connectivity;
+if your messages normally took several hours to send
+you wouldn't want to do this because it wouldn't be an unusual event).
+These timeouts are set using the
+.b Timeout.queuereturn
+and
+.b Timeout.queuewarn
+options in the configuration file
+(previously both were set using the
+.b T
+option).
+.pp
+Since these options are global,
+and since you can not know
+.i "a priori"
+how long another host outside your domain will be down,
+a five day timeout is recommended.
+This allows a recipient to fix the problem even if it occurs
+at the beginning of a long weekend.
+RFC 1123 section 5.3.1.1 says that this parameter
+should be ``at least 4\-5 days''.
+.pp
+The
+.b Timeout.queuewarn
+value can be piggybacked on the
+.b T
+option by indicating a time after which
+a warning message should be sent;
+the two timeouts are separated by a slash.
+For example, the line
+.(b
+OT5d/4h
+.)b
+causes email to fail after five days,
+but a warning message will be sent after four hours.
+This should be large enough that the message will have been tried
+several times.
+.sh 2 "Forking During Queue Runs"
+.pp
+By setting the
+.b ForkEachJob
+(\c
+.b Y )
+option,
+.i sendmail
+will fork before each individual message
+while running the queue.
+This will prevent
+.i sendmail
+from consuming large amounts of memory,
+so it may be useful in memory-poor environments.
+However, if the
+.b ForkEachJob
+option is not set,
+.i sendmail
+will keep track of hosts that are down during a queue run,
+which can improve performance dramatically.
+.pp
+If the
+.b ForkEachJob
+option is set,
+.i sendmail
+can not use connection caching.
+.sh 2 "Queue Priorities"
+.pp
+Every message is assigned a priority when it is first instantiated,
+consisting of the message size (in bytes)
+offset by the message class
+(which is determined from the Precedence: header)
+times the
+.q "work class factor"
+and the number of recipients times the
+.q "work recipient factor."
+The priority is used to order the queue.
+Higher numbers for the priority mean that the message will be processed later
+when running the queue.
+.pp
+The message size is included so that large messages are penalized
+relative to small messages.
+The message class allows users to send
+.q "high priority"
+messages by including a
+.q Precedence:
+field in their message;
+the value of this field is looked up in the
+.b P
+lines of the configuration file.
+Since the number of recipients affects the amount of load a message presents
+to the system,
+this is also included into the priority.
+.pp
+The recipient and class factors
+can be set in the configuration file using the
+.b RecipientFactor
+(\c
+.b y )
+and
+.b ClassFactor
+(\c
+.b z )
+options respectively.
+They default to 30000 (for the recipient factor)
+and 1800
+(for the class factor).
+The initial priority is:
+.EQ
+pri = msgsize - (class times bold ClassFactor) + (nrcpt times bold RecipientFactor)
+.EN
+(Remember, higher values for this parameter actually mean
+that the job will be treated with lower priority.)
+.pp
+The priority of a job can also be adjusted each time it is processed
+(that is, each time an attempt is made to deliver it)
+using the
+.q "work time factor,"
+set by the
+.b RetryFactor
+(\c
+.b Z )
+option.
+This is added to the priority,
+so it normally decreases the precedence of the job,
+on the grounds that jobs that have failed many times
+will tend to fail again in the future.
+The
+.b RetryFactor
+option defaults to 90000.
+.sh 2 "Load Limiting"
+.pp
+.i Sendmail
+can be asked to queue (but not deliver)
+mail if the system load average gets too high
+using the
+.b QueueLA
+(\c
+.b x )
+option.
+When the load average exceeds the value of the
+.b QueueLA
+option,
+the delivery mode is set to
+.b q
+(queue only)
+if the
+.b QueueFactor
+(\c
+.b q )
+option divided by the difference in the current load average and the
+.b QueueLA
+option
+plus one
+exceeds the priority of the message \(em
+that is, the message is queued iff:
+.EQ
+pri > { bold QueueFactor } over { LA - { bold QueueLA } + 1 }
+.EN
+The
+.b QueueFactor
+option defaults to 600000,
+so each point of load average is worth 600000
+priority points
+(as described above).
+.pp
+For drastic cases,
+the
+.b RefuseLA
+(\c
+.b X )
+option defines a load average at which
+.i sendmail
+will refuse
+to accept network connections.
+Locally generated mail
+(including incoming UUCP mail)
+is still accepted.
+.sh 2 "Delivery Mode"
+.pp
+There are a number of delivery modes that
+.i sendmail
+can operate in,
+set by the
+.b DeliveryMode
+(\c
+.b d )
+configuration option.
+These modes
+specify how quickly mail will be delivered.
+Legal modes are:
+.(b
+.ta 4n
+i	deliver interactively (synchronously)
+b	deliver in background (asynchronously)
+q	queue only (don't deliver)
+d	defer delvery attempts (don't deliver)
+.)b
+There are tradeoffs.
+Mode
+.q i
+gives the sender the quickest feedback,
+but may slow down some mailers and
+is hardly ever necessary.
+Mode
+.q b
+delivers promptly but
+can cause large numbers of processes
+if you have a mailer that takes a long time to deliver a message.
+Mode
+.q q
+minimizes the load on your machine,
+but means that delivery may be delayed for up to the queue interval.
+Mode
+.q d
+is identical to mode
+.q q
+except that it also prevents all the early map lookups from working;
+it is intended for ``dial on demand'' sites where DNS lookups
+might cost real money.
+Some simple error messages
+(e.g., host unknown during the SMTP protocol)
+will be delayed using this mode.
+Mode
+.q b
+is the usual default.
+.pp
+If you run in mode
+.q q
+(queue only),
+.q d
+(defer),
+or
+.q b
+(deliver in background)
+.i sendmail
+will not expand aliases and follow .forward files
+upon initial receipt of the mail.
+This speeds up the response to RCPT commands.
+Mode
+.q i
+cannot be used by the SMTP server.
+.sh 2 "Log Level"
+.pp
+The level of logging can be set for
+.i sendmail .
+The default using a standard configuration table is level 9.
+The levels are as follows:
+.nr ii 0.5i
+.ip 0
+No logging.
+.ip 1
+Serious system failures and potential security problems.
+.ip 2
+Lost communications (network problems) and protocol failures.
+.ip 3
+Other serious failures.
+.ip 4
+Minor failures.
+.ip 5
+Message collection statistics.
+.ip 6
+Creation of error messages,
+VRFY and EXPN commands.
+.ip 7
+Delivery failures (host or user unknown, etc.).
+.ip 8
+Successful deliveries and alias database rebuilds.
+.ip 9
+Messages being deferred
+(due to a host being down, etc.).
+.ip 10
+Database expansion (alias, forward, and userdb lookups).
+.ip 12
+Log all incoming and outgoing SMTP commands.
+.ip 20
+Logs attempts to run locked queue files.
+These are not errors,
+but can be useful to note if your queue appears to be clogged.
+.ip 30
+Lost locks (only if using lockf instead of flock).
+.lp
+Additionally,
+values above 64 are reserved for extremely verbose debugging output.
+No normal site would ever set these.
+.sh 2 "File Modes"
+.pp
+The modes used for files depend on what functionality you want
+and the level of security you require.
+.sh 3 "To suid or not to suid?"
+.pp
+.i Sendmail
+can safely be made
+setuid to root.
+At the point where it is about to
+.i exec \|(2)
+a mailer,
+it checks to see if the userid is zero;
+if so,
+it resets the userid and groupid to a default
+(set by the
+.b u
+and
+.b g
+options).
+(This can be overridden
+by setting the
+.b S
+flag to the mailer
+for mailers that are trusted
+and must be called as root.)
+However,
+this will cause mail processing
+to be accounted
+(using
+.i sa \|(8))
+to root
+rather than to the user sending the mail.
+.pp
+If you don't make
+.i sendmail
+setuid to root, it will still run but you lose a lot of functionality
+and a lot of privacy, since you'll have to make the queue directory
+world readable.
+You could also make
+.i sendmail
+setuid to some pseudo-user
+(e.g., create a user called
+.q sendmail
+and make
+.i sendmail
+setuid to that)
+which will fix the privacy problems
+but not the functionality issues.
+Also, this isn't a guarantee of security:
+for example,
+root occasionally sends mail,
+and the daemon often runs as root.
+.sh 3 "Should my alias database be writable?"
+.pp
+At Berkeley
+we have the alias database
+(/etc/aliases*)
+mode 644.
+While this is not as flexible as if the database
+were more 666, it avoids potential security problems
+with a globally writable database.
+.pp
+The database that
+.i sendmail
+actually used
+is represented by the two files
+.i aliases.dir
+and
+.i aliases.pag
+(both in /etc)
+(or
+.i aliases.db
+if you are running with the new Berkeley database primitives).
+The mode on these files should match the mode
+on /etc/aliases.
+If
+.i aliases
+is writable
+and the
+DBM
+files
+(\c
+.i aliases.dir
+and
+.i aliases.pag )
+are not,
+users will be unable to reflect their desired changes
+through to the actual database.
+However,
+if
+.i aliases
+is read-only
+and the DBM files are writable,
+a slightly sophisticated user
+can arrange to steal mail anyway.
+.pp
+If your DBM files are not writable by the world
+or you do not have auto-rebuild enabled
+(with the
+.b AutoRebuildAliases
+option),
+then you must be careful to reconstruct the alias database
+each time you change the text version:
+.(b
+newaliases
+.)b
+If this step is ignored or forgotten
+any intended changes will also be ignored or forgotten.
+.sh 2 "Connection Caching"
+.pp
+When processing the queue,
+.i sendmail
+will try to keep the last few open connections open
+to avoid startup and shutdown costs.
+This only applies to IPC connections.
+.pp
+When trying to open a connection
+the cache is first searched.
+If an open connection is found, it is probed to see if it is still active
+by sending a
+.sm RSET
+command.
+It is not an error if this fails;
+instead, the connection is closed and reopened.
+.pp
+Two parameters control the connection cache.
+The
+.b ConnectionCacheSize
+(\c
+.b k )
+option defines the number of simultaneous open connections
+that will be permitted.
+If it is set to zero,
+connections will be closed as quickly as possible.
+The default is one.
+This should be set as appropriate for your system size;
+it will limit the amount of system resources that
+.i sendmail
+will use during queue runs.
+Never set this higher than 4.
+.pp
+The
+.b ConnectionCacheTimeout
+(\c
+.b K )
+option specifies the maximum time that any cached connection
+will be permitted to idle.
+When the idle time exceeds this value
+the connection is closed.
+This number should be small
+(under ten minutes)
+to prevent you from grabbing too many resources
+from other hosts.
+The default is five minutes.
+.sh 2 "Name Server Access"
+.pp
+Control of host address lookups is set by the
+.b hosts
+service entry in your service switch file.
+If you are on a system that has built-in service switch support
+(e.g., Ultrix, Solaris, or DEC OSF/1)
+then your system is probably configured properly already.
+Otherwise,
+.i sendmail
+will consult the file
+.b /etc/service.switch ,
+which should be created.
+.i Sendmail
+only uses two entries:
+.b hosts
+and
+.b aliases .
+.pp
+However, some systems (such as SunOS)
+will do DNS lookups
+regardless of the setting of the service switch entry.
+In particular, the system routine
+.i gethostbyname (3)
+is used to look up host names,
+and many vendor versions try some combination of DNS, NIS,
+and file lookup in /etc/hosts
+without consulting a service switch.
+.i Sendmail
+makes no attempt to work around this problem,
+and the DNS lookup will be done anyway.
+If you do not have a nameserver configured at all,
+such as at a UUCP-only site,
+.i sendmail
+will get a
+.q "connection refused"
+message when it tries to connect to the name server.
+If the
+.b hosts
+switch entry has the service
+.q dns
+listed somewhere in the list,
+.i sendmail
+will interpret this to mean a temporary failure
+and will queue the mail for later processing;
+otherwise, it ignores the name server data.
+.pp
+The same technique is used to decide whether to do MX lookups.
+If you want MX support, you
+.i must
+have
+.q dns
+listed as a service in the
+.b hosts
+switch entry.
+.pp
+The
+.b ResolverOptions
+(\c
+.b I )
+option allows you to tweak name server options.
+The command line takes a series of flags as documented in
+.i resolver (3)
+(with the leading
+.q RES_
+deleted).
+Each can be preceded by an optional `+' or `\(mi'.
+For example, the line
+.(b
+O ResolverOptions=+AAONLY \(miDNSRCH
+.)b
+turns on the AAONLY (accept authoritative answers only)
+and turns off the DNSRCH (search the domain path) options.
+Most resolver libraries default DNSRCH, DEFNAMES, and RECURSE
+flags on and all others off.
+You can also include
+.q HasWildcardMX
+to specify that there is a wildcard MX record matching your domain;
+this turns off MX matching when canonifying names,
+which can lead to inappropriate canonifications.
+.pp
+Version level 1 configurations
+turn DNSRCH and DEFNAMES off when doing delivery lookups,
+but leave them on everywhere else.
+Version 8 of
+.i sendmail
+ignores them when doing canonification lookups
+(that is, when using $[ ... $]),
+and always does the search.
+If you don't want to do automatic name extension,
+don't call $[ ... $].
+.pp
+The search rules for $[ ... $] are somewhat different than usual.
+If the name being looked up
+has at least one dot, it always tries the unmodified name first.
+If that fails, it tries the reduced search path,
+and lastly tries the unmodified name
+(but only for names without a dot,
+since names with a dot have already been tried).
+This allows names such as
+``utc.CS''
+to match the site in Czechoslovakia
+rather than the site in your local Computer Science department.
+It also prefers A and CNAME records over MX records \*-
+that is, if it finds an MX record it makes note of it,
+but keeps looking.
+This way, if you have a wildcard MX record matching your domain,
+it will not assume that all names match.
+.pp
+To completely turn off all name server access
+on systems without service switch support
+(such as SunOS)
+you will have to recompile with
+\-DNAMED_BIND=0
+and remove \-lresolv from the list of libraries to be searched
+when linking.
+.sh 2 "Moving the Per-User Forward Files"
+.pp
+Some sites mount each user's home directory
+from a local disk on their workstation,
+so that local access is fast.
+However, the result is that .forward file lookups are slow.
+In some cases,
+mail can even be delivered on machines inappropriately
+because of a file server being down.
+The performance can be especially bad if you run the automounter.
+.pp
+The
+.b ForwardPath
+(\c
+.b J )
+option allows you to set a path of forward files.
+For example, the config file line
+.(b
+O ForwardPath=/var/forward/$u:$z/.forward.$w
+.)b
+would first look for a file with the same name as the user's login
+in /var/forward;
+if that is not found (or is inaccessible)
+the file
+``.forward.\c
+.i machinename ''
+in the user's home directory is searched.
+A truly perverse site could also search by sender
+by using $r, $s, or $f.
+.pp
+If you create a directory such as /var/forward,
+it should be mode 1777
+(that is, the sticky bit should be set).
+Users should create the files mode 644.
+.sh 2 "Free Space"
+.pp
+On systems that have one of the system calls in the
+.i statfs (2)
+family
+(including
+.i statvfs
+and
+.i ustat ),
+you can specify a minimum number of free blocks on the queue filesystem
+using the
+.b MinFreeBlocks
+(\c
+.b b )
+option.
+If there are fewer than the indicated number of blocks free
+on the filesystem on which the queue is mounted
+the SMTP server will reject mail
+with the
+452 error code.
+This invites the SMTP client to try again later.
+.pp
+Beware of setting this option too high;
+it can cause rejection of email
+when that mail would be processed without difficulty.
+.sh 2 "Maximum Message Size"
+.pp
+To avoid overflowing your system with a large message,
+the
+.b MaxMessageSize
+option can be set to set an absolute limit
+on the size of any one message.
+This will be advertised in the ESMTP dialogue
+and checked during message collection.
+.sh 2 "Privacy Flags"
+.pp
+The
+.b PrivacyOptions
+(\c
+.b p )
+option allows you to set certain
+``privacy''
+flags.
+Actually, many of them don't give you any extra privacy,
+rather just insisting that client SMTP servers
+use the HELO command
+before using certain commands
+or adding extra headers to indicate possible spoof attempts.
+.pp
+The option takes a series of flag names;
+the final privacy is the inclusive or of those flags.
+For example:
+.(b
+O PrivacyOptions=needmailhelo, noexpn
+.)b
+insists that the HELO or EHLO command be used before a MAIL command is accepted
+and disables the EXPN command.
+.pp
+The flags are detailed in section
+.\"XREF
+5.6.
+.sh 2 "Send to Me Too"
+.pp
+Normally,
+.i sendmail
+deletes the (envelope) sender from any list expansions.
+For example, if
+.q matt
+sends to a list that contains
+.q matt
+as one of the members he won't get a copy of the message.
+If the
+.b \-m
+(me too)
+command line flag, or if the
+.b MeToo
+(\c
+.b m )
+option is set in the configuration file,
+this behaviour is suppressed.
+Some sites like to run the
+.sm SMTP
+daemon with
+.b \-m .
+.sh 1 "THE WHOLE SCOOP ON THE CONFIGURATION FILE"
+.pp
+This section describes the configuration file
+in detail.
+.pp
+There is one point that should be made clear immediately:
+the syntax of the configuration file
+is designed to be reasonably easy to parse,
+since this is done every time
+.i sendmail
+starts up,
+rather than easy for a human to read or write.
+On the
+.q "future project"
+list is a
+configuration-file compiler.
+.pp
+The configuration file is organized as a series of lines,
+each of which begins with a single character
+defining the semantics for the rest of the line.
+Lines beginning with a space or a tab
+are continuation lines
+(although the semantics are not well defined in many places).
+Blank lines and lines beginning with a sharp symbol
+(`#')
+are comments.
+.sh 2 "R and S \*- Rewriting Rules"
+.pp
+The core of address parsing
+are the rewriting rules.
+These are an ordered production system.
+.i Sendmail
+scans through the set of rewriting rules
+looking for a match on the left hand side
+(LHS)
+of the rule.
+When a rule matches,
+the address is replaced by the right hand side
+(RHS)
+of the rule.
+.pp
+There are several sets of rewriting rules.
+Some of the rewriting sets are used internally
+and must have specific semantics.
+Other rewriting sets
+do not have specifically assigned semantics,
+and may be referenced by the mailer definitions
+or by other rewriting sets.
+.pp
+The syntax of these two commands are:
+.(b F
+.b S \c
+.i n
+.)b
+Sets the current ruleset being collected to
+.i n .
+If you begin a ruleset more than once
+it appends to the old definition.
+.(b F
+.b R \c
+.i lhs
+.i rhs
+.i comments
+.)b
+The
+fields must be separated
+by at least one tab character;
+there may be embedded spaces
+in the fields.
+The
+.i lhs
+is a pattern that is applied to the input.
+If it matches,
+the input is rewritten to the
+.i rhs .
+The
+.i comments
+are ignored.
+.pp
+Macro expansions of the form
+.b $ \c
+.i x
+are performed when the configuration file is read.
+Expansions of the form
+.b $& \c
+.i x
+are performed at run time using a somewhat less general algorithm.
+This for is intended only for referencing internally defined macros
+such as
+.b $h
+that are changed at runtime.
+.sh 3 "The left hand side"
+.pp
+The left hand side of rewriting rules contains a pattern.
+Normal words are simply matched directly.
+Metasyntax is introduced using a dollar sign.
+The metasymbols are:
+.(b
+.ta \w'\fB$=\fP\fIx\fP  'u
+\fB$*\fP	Match zero or more tokens
+\fB$+\fP	Match one or more tokens
+\fB$\-\fP	Match exactly one token
+\fB$=\fP\fIx\fP	Match any phrase in class \fIx\fP
+\fB$~\fP\fIx\fP	Match any word not in class \fIx\fP
+.)b
+If any of these match,
+they are assigned to the symbol
+.b $ \c
+.i n
+for replacement on the right hand side,
+where
+.i n
+is the index in the LHS.
+For example,
+if the LHS:
+.(b
+$\-:$+
+.)b
+is applied to the input:
+.(b
+UCBARPA:eric
+.)b
+the rule will match, and the values passed to the RHS will be:
+.(b
+.ta 4n
+$1	UCBARPA
+$2	eric
+.)b
+.pp
+Additionally, the LHS can include
+.b $@
+to match zero tokens.
+This is
+.i not
+bound to a
+.b $ \c
+.i n
+on the RHS, and is normally only used when it stands alone
+in order to match the null input.
+.sh 3 "The right hand side"
+.pp
+When the left hand side of a rewriting rule matches,
+the input is deleted and replaced by the right hand side.
+Tokens are copied directly from the RHS
+unless they begin with a dollar sign.
+Metasymbols are:
+.(b
+.ta \w'$#mailer\0\0\0'u
+\fB$\fP\fIn\fP	Substitute indefinite token \fIn\fP from LHS
+\fB$[\fP\fIname\fP\fB$]\fP	Canonicalize \fIname\fP
+\fB$(\fP\fImap key\fP \fB$@\fP\fIarguments\fP \fB$:\fP\fIdefault\fP \fB$)\fP
+	Generalized keyed mapping function
+\fB$>\fP\fIn\fP	\*(lqCall\*(rq ruleset \fIn\fP
+\fB$#\fP\fImailer\fP	Resolve to \fImailer\fP
+\fB$@\fP\fIhost\fP	Specify \fIhost\fP
+\fB$:\fP\fIuser\fP	Specify \fIuser\fP
+.)b
+.pp
+The
+.b $ \c
+.i n
+syntax substitutes the corresponding value from a
+.b $+ ,
+.b $\- ,
+.b $* ,
+.b $= ,
+or
+.b $~
+match on the LHS.
+It may be used anywhere.
+.pp
+A host name enclosed between
+.b $[
+and
+.b $]
+is looked up in the host database(s)
+and replaced by the canonical name\**.
+.(f
+\**This is actually
+completely equivalent
+to $(host \fIhostname\fP$).
+In particular, a
+.b $:
+default can be used.
+.)f
+For example,
+.q $[ftp$]
+might become
+.q ftp.CS.Berkeley.EDU
+and
+.q $[[128.32.130.2]$]
+would become
+.q vangogh.CS.Berkeley.EDU.
+.i Sendmail
+recognizes it's numeric IP address
+without calling the name server
+and replaces it with it's canonical name.
+.pp
+The
+.b $(
+\&...
+.b $)
+syntax is a more general form of lookup;
+it uses a named map instead of an implicit map.
+If no lookup is found, the indicated
+.i default
+is inserted;
+if no default is specified and no lookup matches,
+the value is left unchanged.
+The
+.i arguments
+are passed to the map for possible use.
+.pp
+The
+.b $> \c
+.i n
+syntax
+causes the remainder of the line to be substituted as usual
+and then passed as the argument to ruleset
+.i n .
+The final value of ruleset
+.i n
+then becomes
+the substitution for this rule.
+The
+.b $>
+syntax can only be used at the beginning of the right hand side;
+it can be only be preceded by
+.b $@
+or
+.b $: .
+.pp
+The
+.b $#
+syntax should
+.i only
+be used in ruleset zero
+or a subroutine of ruleset zero.
+It causes evaluation of the ruleset to terminate immediately,
+and signals to
+.i sendmail
+that the address has completely resolved.
+The complete syntax is:
+.(b
+\fB$#\fP\fImailer\fP \fB$@\fP\fIhost\fP \fB$:\fP\fIuser\fP
+.)b
+This specifies the
+{mailer, host, user}
+3-tuple necessary to direct the mailer.
+If the mailer is local
+the host part may be omitted\**.
+.(f
+\**You may want to use it for special
+.q "per user"
+extensions.
+For example, in the address
+.q jgm+foo@CMU.EDU ;
+the
+.q +foo
+part is not part of the user name,
+and is passed to the local mailer for local use.
+.)f
+The
+.i mailer
+must be a single word,
+but the
+.i host
+and
+.i user
+may be multi-part.
+If the
+.i mailer
+is the builtin IPC mailer,
+the
+.i host
+may be a colon-separated list of hosts
+that are searched in order for the first working address
+(exactly like MX records).
+The
+.i user
+is later rewritten by the mailer-specific envelope rewriting set
+and assigned to the
+.b $u
+macro.
+As a special case, if the mailer specified has the
+.b F=@
+flag specified
+and the first character of the
+.b $:
+value is
+.q @ ,
+the
+.q @
+is stripped off, and a flag is set in the address descriptor
+that causes sendmail to not do ruleset 5 processing.
+.pp
+Normally, a rule that matches is retried,
+that is,
+the rule loops until it fails.
+A RHS may also be preceded by a
+.b $@
+or a
+.b $:
+to change this behavior.
+A
+.b $@
+prefix causes the ruleset to return with the remainder of the RHS
+as the value.
+A
+.b $:
+prefix causes the rule to terminate immediately,
+but the ruleset to continue;
+this can be used to avoid continued application of a rule.
+The prefix is stripped before continuing.
+.pp
+The
+.b $@
+and
+.b $:
+prefixes may precede a
+.b $>
+spec;
+for example:
+.(b
+.ta 8n
+R$+	$: $>7 $1
+.)b
+matches anything,
+passes that to ruleset seven,
+and continues;
+the
+.b $:
+is necessary to avoid an infinite loop.
+.pp
+Substitution occurs in the order described,
+that is,
+parameters from the LHS are substituted,
+hostnames are canonicalized,
+.q subroutines
+are called,
+and finally
+.b $# ,
+.b $@ ,
+and
+.b $:
+are processed.
+.sh 3 "Semantics of rewriting rule sets"
+.pp
+There are five rewriting sets
+that have specific semantics.
+Four of these are related as depicted by figure 1.
+.(z
+.hl
+.ie n \{\
+.(c
+                    +---+
+                 -->| 0 |-->resolved address
+                /   +---+
+               /            +---+   +---+
+              /        ---->| 1 |-->| S |--
+       +---+ / +---+  /     +---+   +---+  \e    +---+
+addr-->| 3 |-->| D |--                      --->| 4 |-->msg
+       +---+   +---+  \e     +---+   +---+  /    +---+
+                        --->| 2 |-->| R |--
+                            +---+   +---+
+.)c
+
+.\}
+.el .ie !"\*(.T"" \
+\{\
+.PS
+boxwid = 0.3i
+boxht = 0.3i
+movewid = 0.3i
+moveht = 0.3i
+linewid = 0.3i
+lineht = 0.3i
+
+	box invis "addr"; arrow
+Box3:	box "3"
+A1:	arrow
+BoxD:	box "D"; line; L1: Here
+C:	[
+	C1:	arrow; box "1"; arrow; box "S"; line; E1: Here
+		move to C1 down 0.5; right
+	C2:	arrow; box "2"; arrow; box "R"; line; E2: Here
+	] with .w at L1 + (0.5, 0)
+	move to C.e right 0.5
+L4:	arrow; box "4"; arrow; box invis "msg"
+	line from L1 to C.C1
+	line from L1 to C.C2
+	line from C.E1 to L4
+	line from C.E2 to L4
+	move to BoxD.n up 0.6; right
+Box0:	arrow; box "0"
+	arrow; box invis "resolved address" width 1.3
+	line from 1/3 of the way between A1 and BoxD.w to Box0
+.PE
+.\}
+.el .sp 2i
+.ce
+Figure 1 \*- Rewriting set semantics
+.(c
+D \*- sender domain addition
+S \*- mailer-specific sender rewriting
+R \*- mailer-specific recipient rewriting
+.)c
+.hl
+.)z
+.pp
+Ruleset three
+should turn the address into
+.q "canonical form."
+This form should have the basic syntax:
+.(b
+local-part@host-domain-spec
+.)b
+Ruleset three
+is applied by
+.i sendmail
+before doing anything with any address.
+.pp
+If no
+.q @
+sign is specified,
+then the
+host-domain-spec
+.i may
+be appended (box
+.q D
+in Figure 1)
+from the
+sender address
+(if the
+.b C
+flag is set in the mailer definition
+corresponding to the
+.i sending
+mailer).
+.pp
+Ruleset zero
+is applied after ruleset three
+to addresses that are going to actually specify recipients.
+It must resolve to a
+.i "{mailer, host, user}"
+triple.
+The
+.i mailer
+must be defined in the mailer definitions
+from the configuration file.
+The
+.i host
+is defined into the
+.b $h
+macro
+for use in the argv expansion of the specified mailer.
+.pp
+Rulesets one and two
+are applied to all sender and recipient addresses respectively.
+They are applied before any specification
+in the mailer definition.
+They must never resolve.
+.pp
+Ruleset four is applied to all addresses
+in the message.
+It is typically used
+to translate internal to external form.
+.pp
+In addition,
+ruleset 5 is applied to all local addresses
+(specifically, those that resolve to a mailer with the `F=5'
+flag set)
+that do not have aliases.
+This allows a last minute hook for local names.
+.sh 3 "Ruleset hooks"
+.pp
+A few extra rulesets are defined as
+.q hooks
+that can be defined to get special features.
+They are all named rulesets.
+The
+.q check_*
+forms all give accept/reject status;
+falling off the end or returning normally is an accept,
+and resolving to $#error
+is a reject.
+.sh 4 "check_relay"
+.pp
+The
+.i check_relay
+ruleset is called after a connection is accepted.
+It is passed
+.(b
+client.host.name $| client.host.address
+.)b
+where
+.b $|
+is a metacharacter separating the two parts.
+This ruleset can reject connections from various locations.
+.sh 4 "check_mail"
+.pp
+The
+.i check_mail
+ruleset is passed the user name parameter of the
+.sm "SMTP MAIL"
+command.
+It can accept or reject the address.
+.sh 4 "check_rcpt"
+.pp
+The
+.i check_rcpt
+ruleset is passed the user name parameter of the
+.sm "SMTP RCPT"
+command.
+It can accept or reject the address.
+.sh 4 "check_compat"
+.pp
+The
+.i check_compat
+ruleset is passed
+.(b
+sender-address $| recipient-address
+.)b
+where
+.b $|
+is a metacharacter separating the addresses.
+It can accept or reject mail transfer between these two addresses
+much like the
+.i checkcompat()
+function.
+.sh 3 "IPC mailers"
+.pp
+Some special processing occurs
+if the ruleset zero resolves to an IPC mailer
+(that is, a mailer that has
+.q [IPC]
+listed as the Path in the
+.b M
+configuration line.
+The host name passed after
+.q $@
+has MX expansion performed;
+this looks the name up in DNS to find alternate delivery sites.
+.pp
+The host name can also be provided as a dotted quad in square brackets;
+for example:
+.(b
+[128.32.149.78]
+.)b
+This causes direct conversion of the numeric value
+to a TCP/IP host address.
+.pp
+The host name passed in after the
+.q $@
+may also be a colon-separated list of hosts.
+Each is separately MX expanded and the results are concatenated
+to make (essentially) one long MX list.
+The intent here is to create
+.q fake
+MX records that are not published in DNS
+for private internal networks.
+.pp
+As a final special case, the host name can be passed in
+as a text string
+in square brackets:
+.(b
+[ucbvax.berkeley.edu]
+.)b
+This form avoids the MX mapping.
+.b N.B.:
+.i
+This is intended only for situations where you have a network firewall
+or other host that will do special processing for all your mail,
+so that your MX record points to a gateway machine;
+this machine could then do direct delivery to machines
+within your local domain.
+Use of this feature directly violates RFC 1123 section 5.3.5:
+it should not be used lightly.
+.r
+.sh 2 "D \*- Define Macro"
+.pp
+Macros are named with a single character
+or with a word in {braces}.
+Single character names may be selected from the entire ASCII set,
+but user-defined macros
+should be selected from the set of upper case letters only.
+Lower case letters
+and special symbols
+are used internally.
+Long names beginning with a lower case letter or a punctuation character
+are reserved for use by sendmail,
+so user-defined long macro names should begin with an upper case letter.
+.pp
+The syntax for macro definitions is:
+.(b F
+.b D \c
+.i x\|val
+.)b
+where
+.i x
+is the name of the macro
+(which may be a single character
+or a word in braces)
+and
+.i val
+is the value it should have.
+There should be no spaces given
+that do not actually belong in the macro value.
+.pp
+Macros are interpolated
+using the construct
+.b $ \c
+.i x ,
+where
+.i x
+is the name of the macro to be interpolated.
+This interpolation is done when the configuration file is read,
+except in
+.b M
+lines.
+The special construct
+.b $& \c
+.i x
+can be used in
+.b R
+lines to get deferred interpolation.
+.pp
+Conditionals can be specified using the syntax:
+.(b
+$?x text1 $| text2 $.
+.)b
+This interpolates
+.i text1
+if the macro
+.b $x
+is set,
+and
+.i text2
+otherwise.
+The
+.q else
+(\c
+.b $| )
+clause may be omitted.
+.pp
+Lower case macro names are reserved to have
+special semantics,
+used to pass information in or out of
+.i sendmail ,
+and special characters are reserved to
+provide conditionals, etc.
+Upper case names
+(that is,
+.b $A
+through
+.b $Z )
+are specifically reserved for configuration file authors.
+.pp
+The following macros are defined and/or used internally by
+.i sendmail
+for interpolation into argv's for mailers
+or for other contexts.
+The ones marked \(dg are information passed into sendmail\**,
+.(f
+\**As of version 8.6,
+all of these macros have reasonable defaults.
+Previous versions required that they be defined.
+.)f
+the ones marked \(dd are information passed both in and out of sendmail,
+and the unmarked macros are passed out of sendmail
+but are not otherwise used internally.
+These macros are:
+.nr ii 5n
+.ip $a
+The origination date in RFC 822 format.
+This is extracted from the Date: line.
+.ip $b
+The current date in RFC 822 format.
+.ip $c
+The hop count.
+This is a count of the number of Received: lines
+plus the value of the
+.b \-h
+command line flag.
+.ip $d
+The current date in UNIX (ctime) format.
+.ip $e\(dg
+(Obsolete; use SmtpGreetingMessage option instead.)
+The SMTP entry message.
+This is printed out when SMTP starts up.
+The first word must be the
+.b $j
+macro as specified by RFC821.
+Defaults to
+.q "$j Sendmail $v ready at $b" .
+Commonly redefined to include the configuration version number, e.g.,
+.q "$j Sendmail $v/$Z ready at $b"
+.ip $f
+The envelope sender (from) address.
+.ip $g
+The sender address relative to the recipient.
+For example, if
+.b $f
+is
+.q foo ,
+.b $g
+will be
+.q host!foo ,
+.q foo@host.domain ,
+or whatever is appropriate for the receiving mailer.
+.ip $h
+The recipient host.
+This is set in ruleset 0 from the $# field of a parsed address.
+.ip $i
+The queue id,
+e.g.,
+.q HAA12345 .
+.ip $j\(dd
+The \*(lqofficial\*(rq domain name for this site.
+This is fully qualified if the full qualification can be found.
+It
+.i must
+be redefined to be the fully qualified domain name
+if your system is not configured so that information can find
+it automatically.
+.ip $k
+The UUCP node name (from the uname system call).
+.ip $l\(dg
+(Obsolete; use UnixFromLine option instead.)
+The format of the UNIX from line.
+Unless you have changed the UNIX mailbox format,
+you should not change the default,
+which is
+.q "From $g  $d" .
+.ip $m
+The domain part of the \fIgethostname\fP return value.
+Under normal circumstances,
+.b $j
+is equivalent to
+.b $w.$m .
+.ip $n\(dg
+The name of the daemon (for error messages).
+Defaults to
+.q MAILER-DAEMON .
+.ip $o\(dg
+(Obsolete: use OperatorChars option instead.)
+The set of \*(lqoperators\*(rq in addresses.
+A list of characters
+which will be considered tokens
+and which will separate tokens
+when doing parsing.
+For example, if
+.q @
+were in the
+.b $o
+macro, then the input
+.q a@b
+would be scanned as three tokens:
+.q a,
+.q @,
+and
+.q b.
+Defaults to
+.q ".:@[]" ,
+which is the minimum set necessary to do RFC 822 parsing;
+a richer set of operators is
+.q ".:%@!/[]" ,
+which adds support for UUCP, the %-hack, and X.400 addresses.
+.ip $p
+Sendmail's process id.
+.ip $q\(dg
+Default format of sender address.
+The
+.b $q
+macro specifies how an address should appear in a message
+when it is defaulted.
+Defaults to
+.q "<$g>" .
+It is commonly redefined to be
+.q "$?x$x <$g>$|$g$."
+or
+.q "$g$?x ($x)$." ,
+corresponding to the following two formats:
+.(b
+Eric Allman <eric@CS.Berkeley.EDU>
+eric@CS.Berkeley.EDU (Eric Allman)
+.)b
+.i Sendmail
+properly quotes names that have special characters
+if the first form is used.
+.ip $r
+Protocol used to receive the message.
+Set from the
+.b \-p
+command line flag or by the SMTP server code.
+.ip $s
+Sender's host name.
+Set from the
+.b \-p
+command line flag or by the SMTP server code.
+.ip $t
+A numeric representation of the current time.
+.ip $u
+The recipient user.
+.ip $v
+The version number of the
+.i sendmail
+binary.
+.ip $w\(dd
+The hostname of this site.
+This is the root name of this host (but see below for caveats).
+.ip $x
+The full name of the sender.
+.ip $z
+The home directory of the recipient.
+.ip $_
+The validated sender address.
+.ip ${bodytype}
+The message body type
+(7BIT or 8BITMIME),
+as determined from the envelope.
+.ip ${client_addr}
+The IP address of the SMTP client.
+Defined in the SMTP server only.
+.ip ${client_name}
+The host name of the SMTP client.
+Defined in the SMTP server only.
+.ip ${client_port}
+The port number of the SMTP client.
+Defined in the SMTP server only.
+.ip ${envid}
+The envelope id passed to sendmail as part of the envelope.
+.ip ${opMode}
+The current operation mode (from the
+.b \-b
+flag).
+.pp
+There are three types of dates that can be used.
+The
+.b $a
+and
+.b $b
+macros are in RFC 822 format;
+.b $a
+is the time as extracted from the
+.q Date:
+line of the message
+(if there was one),
+and
+.b $b
+is the current date and time
+(used for postmarks).
+If no
+.q Date:
+line is found in the incoming message,
+.b $a
+is set to the current time also.
+The
+.b $d
+macro is equivalent to the
+.b $b
+macro in UNIX
+(ctime)
+format.
+.pp
+The macros
+.b $w ,
+.b $j ,
+and
+.b $m
+are set to the identity of this host.
+.i Sendmail
+tries to find the fully qualified name of the host
+if at all possible;
+it does this by calling
+.i gethostname (2)
+to get the current hostname
+and then passing that to
+.i gethostbyname (3)
+which is supposed to return the canonical version of that host name.\**
+.(f
+\**For example, on some systems
+.i gethostname
+might return
+.q foo
+which would be mapped to
+.q foo.bar.com
+by
+.i gethostbyname .
+.)f
+Assuming this is successful,
+.b $j
+is set to the fully qualified name
+and
+.b $m
+is set to the domain part of the name
+(everything after the first dot).
+The
+.b $w
+macro is set to the first word
+(everything before the first dot)
+if you have a level 5 or higher configuration file;
+otherwise, it is set to the same value as
+.b $j .
+If the canonification is not successful,
+it is imperative that the config file set
+.b $j
+to the fully qualified domain name\**.
+.(f
+\**Older versions of sendmail didn't pre-define
+.b $j
+at all, so up until 8.6,
+config files
+.i always
+had to define
+.b $j .
+.)f
+.pp
+The
+.b $f
+macro is the id of the sender
+as originally determined;
+when mailing to a specific host
+the
+.b $g
+macro is set to the address of the sender
+.ul
+relative to the recipient.
+For example,
+if I send to
+.q bollard@matisse.CS.Berkeley.EDU
+from the machine
+.q vangogh.CS.Berkeley.EDU
+the
+.b $f
+macro will be
+.q eric
+and the
+.b $g
+macro will be
+.q eric@vangogh.CS.Berkeley.EDU.
+.pp
+The
+.b $x
+macro is set to the full name of the sender.
+This can be determined in several ways.
+It can be passed as flag to
+.i sendmail .
+It can be defined in the
+.sm NAME
+environment variable.
+The third choice is the value of the
+.q Full-Name:
+line in the header if it exists,
+and the fourth choice is the comment field
+of a
+.q From:
+line.
+If all of these fail,
+and if the message is being originated locally,
+the full name is looked up in the
+.i /etc/passwd
+file.
+.pp
+When sending,
+the
+.b $h ,
+.b $u ,
+and
+.b $z
+macros get set to the host, user, and home directory
+(if local)
+of the recipient.
+The first two are set from the
+.b $@
+and
+.b $:
+part of the rewriting rules, respectively.
+.pp
+The
+.b $p
+and
+.b $t
+macros are used to create unique strings
+(e.g., for the
+.q Message-Id:
+field).
+The
+.b $i
+macro is set to the queue id on this host;
+if put into the timestamp line
+it can be extremely useful for tracking messages.
+The
+.b $v
+macro is set to be the version number of
+.i sendmail ;
+this is normally put in timestamps
+and has been proven extremely useful for debugging.
+.pp
+The
+.b $c
+field is set to the
+.q "hop count,"
+i.e., the number of times this message has been processed.
+This can be determined
+by the
+.b \-h
+flag on the command line
+or by counting the timestamps in the message.
+.pp
+The
+.b $r
+and
+.b $s
+fields are set to the protocol used to communicate with
+.i sendmail
+and the sending hostname.
+They can be set together using the
+.b \-p
+command line flag or separately using the
+.b \-M
+or
+.b \-oM
+flags.
+.pp
+The
+.b $_
+is set to a validated sender host name.
+If the sender is running an RFC 1413 compliant IDENT server
+and the receiver has the IDENT protocol turned on,
+it will include the user name on that host.
+.pp
+The
+.b ${client_name} ,
+.b ${client_addr} ,
+and
+.b ${client_port}
+macros
+are set to the name, address, and port number of the SMTP client
+who is invoking
+.i sendmail
+as a server.
+These can be used in the
+.i check_*
+rulesets (using the
+.b $&
+deferred evaluation form, of course!).
+.sh 2 "C and F \*- Define Classes"
+.pp
+Classes of phrases may be defined
+to match on the left hand side of rewriting rules,
+where a
+.q phrase
+is a sequence of characters that do not contain space characters.
+For example
+a class of all local names for this site
+might be created
+so that attempts to send to oneself
+can be eliminated.
+These can either be defined directly in the configuration file
+or read in from another file.
+Classes are named as a single letter or a word in {braces}.
+Class names beginning with lower case letters
+and special characters are reserved for system use.
+Classes defined in config files may be given names
+from the set of upper case letters for short names
+or beginning with an upper case letter for long names.
+.pp
+The syntax is:
+.(b F
+.b C \c
+.i c\|phrase1
+.i phrase2...
+.br
+.b F \c
+.i c\|file
+.)b
+The first form defines the class
+.i c
+to match any of the named words.
+It is permissible to split them among multiple lines;
+for example, the two forms:
+.(b
+CHmonet ucbmonet
+.)b
+and
+.(b
+CHmonet
+CHucbmonet
+.)b
+are equivalent.
+The ``F'' form
+reads the elements of the class
+.i c
+from the named
+.i file .
+.pp
+Elements of classes can be accessed in rules using
+.b $=
+or
+.b $~ .
+The
+.b $~
+(match entries not in class)
+only matches a single word;
+multi-word entries in the class are ignored in this context.
+.pp
+Some classes have internal meaning to
+.i sendmail :
+.nr ii 0.5i
+.\".ip $=b
+.\"A set of Content-Types that will not have the newline character
+.\"translated to CR-LF before encoding into base64 MIME.
+.\"The class can have major times
+.\"(e.g.,
+.\".q image )
+.\"or full types
+.\"(such as
+.\".q application/octet-stream ).
+.\"The class is initialized with
+.\".q application/octet-stream ,
+.\".q image ,
+.\".q audio ,
+.\"and
+.\".q video .
+.ip $=e
+contains the Content-Transfer-Encodings that can be 8\(->7 bit encoded.
+It is predefined to contain
+.q 7bit ,
+.q 8bit ,
+and
+.q binary .
+.ip $=k
+set to be the same as
+.b $k ,
+that is, the UUCP node name.
+.ip $=m
+set to the set of domains by which this host is known,
+initially just
+.b $m .
+.ip $=n
+can be set to the set of MIME body types
+that can never be eight to seven bit encoded.
+It defaults to
+.q multipart/signed .
+Message types
+.q message/*
+and
+.q multipart/*
+are never encoded directly.
+Multipart messages are always handled recursively.
+The handling of message/* messages
+are controlled by class
+.b $=s .
+.ip $=q
+A set of Content-Types that will never be encoded as base64
+(if they have to be encoded, they will be encoded as quoted-printable).
+It can have primary types
+(e.g.,
+.q text )
+or full types
+(such as
+.q text/plain ).
+The class is initialized to have
+.q text/plain
+only.
+.ip $=s
+contains the set of subtypes of message that can be treated recursively.
+By default it contains only
+.q rfc822 .
+Other
+.q message/*
+types cannot be 8\(->7 bit encoded.
+If a message containing eight bit data is sent to a seven bit host,
+and that message cannot be encoded into seven bits,
+it will be stripped to 7 bits.
+.ip $=t
+set to the set of trusted users by the
+.b T
+configuration line.
+If you want to read trusted users from a file use
+.b Ft \c
+.i /file/name .
+.ip $=w
+set to be the set of all names
+this host is known by.
+This can be used to match local hostnames.
+.pp
+.i Sendmail
+can be compiled to allow a
+.i scanf (3)
+string on the
+.b F
+line.
+This lets you do simplistic parsing of text files.
+For example, to read all the user names in your system
+.i /etc/passwd
+file into a class, use
+.(b
+FL/etc/passwd %[^:]
+.)b
+which reads every line up to the first colon.
+.sh 2 "M \*- Define Mailer"
+.pp
+Programs and interfaces to mailers
+are defined in this line.
+The format is:
+.(b F
+.b M \c
+.i name ,
+{\c
+.i field =\c
+.i value \|}*
+.)b
+where
+.i name
+is the name of the mailer
+(used internally only)
+and the
+.q field=name
+pairs define attributes of the mailer.
+Fields are:
+.(b
+.ta 1i
+Path	The pathname of the mailer
+Flags	Special flags for this mailer
+Sender	Rewriting set(s) for sender addresses
+Recipient	Rewriting set(s) for recipient addresses
+Argv	An argument vector to pass to this mailer
+Eol	The end-of-line string for this mailer
+Maxsize	The maximum message length to this mailer
+Linelimit	The maximum line length in the message body
+Directory	The working directory for the mailer
+Userid	The default user and group id to run as
+Nice	The nice(2) increment for the mailer
+Charset	The default character set for 8-bit characters
+Type	The MTS type information (used for error messages)
+.)b
+Only the first character of the field name is checked.
+.pp
+The following flags may be set in the mailer description.
+Any other flags may be used freely
+to conditionally assign headers to messages
+destined for particular mailers.
+Flags marked with \(dg
+are not interpreted by the
+.i sendmail
+binary;
+these are the conventionally used to correlate to the flags portion
+of the
+.b H
+line.
+Flags marked with \(dd
+apply to the mailers for the sender address
+rather than the usual recipient mailers.
+.nr ii 4n
+.ip a
+Run Extended SMTP (ESMTP) protocol (defined in RFCs 1651, 1652, and 1653).
+This flag defaults on if the SMTP greeting message includes the word
+.q ESMTP .
+.ip A
+Look up the user part of the address in the alias database.
+Normally this is only set for local mailers.
+.ip b
+Force a blank line on the end of a message.
+This is intended to work around some stupid versions of
+/bin/mail
+that require a blank line, but do not provide it themselves.
+It would not normally be used on network mail.
+.ip c
+Do not include comments in addresses.
+This should only be used if you have to work around
+a remote mailer that gets confused by comments.
+This strips addresses of the form
+.q "Phrase <address>"
+or
+.q "address (Comment)"
+down to just
+.q address .
+.ip C\(dd
+If mail is
+.i received
+from a mailer with this flag set,
+any addresses in the header that do not have an at sign
+(\c
+.q @ )
+after being rewritten by ruleset three
+will have the
+.q @domain
+clause from the sender envelope address
+tacked on.
+This allows mail with headers of the form:
+.(b
+From: usera@hosta
+To: userb@hostb, userc
+.)b
+to be rewritten as:
+.(b
+From: usera@hosta
+To: userb@hostb, userc@hosta
+.)b
+automatically.
+However, it doesn't really work reliably.
+.ip d
+Do not include angle brackets around route-address syntax addresses.
+This is useful on mailers that are going to pass addresses to a shell
+that might interpret angle brackets as I/O redirection.
+.ip D\(dg
+This mailer wants a
+.q Date:
+header line.
+.ip e
+This mailer is expensive to connect to,
+so try to avoid connecting normally;
+any necessary connection will occur during a queue run.
+.ip E
+Escape lines beginning with
+.q From
+in the message with a `>' sign.
+.ip f
+The mailer wants a
+.b \-f
+.i from
+flag,
+but only if this is a network forward operation
+(i.e.,
+the mailer will give an error
+if the executing user
+does not have special permissions).
+.ip F\(dg
+This mailer wants a
+.q From:
+header line.
+.ip g
+Normally,
+.i sendmail
+sends internally generated email (e.g., error messages)
+using the null return address
+as required by RFC 1123.
+However, some mailers don't accept a null return address.
+If necessary,
+you can set the
+.b g
+flag to prevent
+.i sendmail
+from obeying the standards;
+error messages will be sent as from the MAILER-DAEMON
+(actually, the value of the
+.b $n
+macro).
+.ip h
+Upper case should be preserved in host names
+for this mailer.
+.ip i
+Do User Database rewriting on envelope sender address.
+.ip I
+This mailer will be speaking SMTP
+to another
+.i sendmail
+\*-
+as such it can use special protocol features.
+This option is not required
+(i.e.,
+if this option is omitted the transmission will still operate successfully,
+although perhaps not as efficiently as possible).
+.ip j
+Do User Database rewriting on recipients as well as senders.
+.ip k
+Normally when
+.i sendmail
+connects to a host via SMTP,
+it checks to make sure that this isn't accidently the same host name
+as might happen if
+.i sendmail
+is misconfigured or if a long-haul network interface is set in loopback mode.
+This flag disables the loopback check.
+It should only be used under very unusual circumstances.
+.ip K
+Currently unimplemented.
+Reserved for chunking.
+.ip l
+This mailer is local
+(i.e.,
+final delivery will be performed).
+.ip L
+Limit the line lengths as specified in RFC821.
+This deprecated option should be replaced by the
+.b L=
+mail declaration.
+For historic reasons, the
+.b L
+flag also sets the
+.b 7
+flag.
+.ip m
+This mailer can send to multiple users
+on the same host
+in one transaction.
+When a
+.b $u
+macro occurs in the
+.i argv
+part of the mailer definition,
+that field will be repeated as necessary
+for all qualifying users.
+.ip M\(dg
+This mailer wants a
+.q Message-Id:
+header line.
+.ip n
+Do not insert a UNIX-style
+.q From
+line on the front of the message.
+.ip o
+Always run as the owner of the recipient mailbox.
+Normally
+.i sendmail
+runs as the sender for locally generated mail
+or as
+.q daemon
+(actually, the user specified in the
+.b u
+option)
+when delivering network mail.
+The normal behaviour is required by most local mailers,
+which will not allow the envelope sender address
+to be set unless the mailer is running as daemon.
+This flag is ignored if the
+.b S
+flag is set.
+.ip p
+Use the route-addr style reverse-path in the SMTP
+.q "MAIL FROM:"
+command
+rather than just the return address;
+although this is required in RFC821 section 3.1,
+many hosts do not process reverse-paths properly.
+Reverse-paths are officially discouraged by RFC 1123.
+.ip P\(dg
+This mailer wants a
+.q Return-Path:
+line.
+.ip q
+When an address that resolves to this mailer is verified
+(SMTP VRFY command),
+generate 250 responses instead of 252 responses.
+This will imply that the address is local.
+.ip r
+Same as
+.b f ,
+but sends a
+.b \-r
+flag.
+.ip R
+Open SMTP connections from a
+.q secure
+port.
+Secure ports aren't
+(secure, that is)
+except on UNIX machines,
+so it is unclear that this adds anything.
+.ip s
+Strip quote characters (" and \e) off of the address
+before calling the mailer.
+.ip S
+Don't reset the userid
+before calling the mailer.
+This would be used in a secure environment
+where
+.i sendmail
+ran as root.
+This could be used to avoid forged addresses.
+If the
+.b U=
+field is also specified,
+this flag causes the user id to always be set to that user and group
+(instead of leaving it as root).
+.ip u
+Upper case should be preserved in user names
+for this mailer.
+.ip U
+This mailer wants UUCP-style
+.q From
+lines with the ugly
+.q "remote from <host>"
+on the end.
+.ip w
+The user must have a valid account on this machine,
+i.e.,
+getpwnam
+must succeed.
+If not,
+the mail is bounced.
+This is required to get
+.q \&.forward
+capability.
+.ip x\(dg
+This mailer wants a
+.q Full-Name:
+header line.
+.ip X
+This mailer want to use the hidden dot algorithm
+as specified in RFC821;
+basically,
+any line beginning with a dot
+will have an extra dot prepended
+(to be stripped at the other end).
+This insures that lines in the message containing a dot
+will not terminate the message prematurely.
+.ip 0
+Don't look up MX records for hosts sent via SMTP.
+.ip 3
+Extend the list of characters converted to =XX notation
+when converting to Quoted-Printable
+to include those that don't map cleanly between ASCII and EBCDIC.
+Useful if you have IBM mainframes on site.
+.ip 5
+If no aliases are found for this address,
+pass the address through ruleset 5 for possible alternate resolution.
+This is intended to forward the mail to an alternate delivery spot.
+.ip 7
+Strip all output to seven bits.
+This is the default if the
+.b L
+flag is set.
+Note that clearing this option is not
+sufficient to get full eight bit data passed through
+.i sendmail .
+If the
+.b 7
+option is set, this is essentially always set,
+since the eighth bit was stripped on input.
+Note that this option will only impact messages
+that didn't have 8\(->7 bit MIME conversions performed.
+.ip 8
+If set,
+it is acceptable to send eight bit data to this mailer;
+the usual attempt to do 8\(->7 bit MIME conversions will be bypassed.
+.ip 9
+If set,
+do
+.i limited
+7\(->8 bit MIME conversions.
+These conversions are limited to text/plain data.
+.ip :
+Check addresses to see if they begin
+.q :include: ;
+if they do, convert them to the
+.q *include*
+mailer.
+.ip |
+Check addresses to see if they begin with a `|';
+if they do, convert them to the
+.q prog
+mailer.
+.ip /
+Check addresses to see if they begin with a `/';
+if they do, convert them to the
+.q *file*
+mailer.
+.ip @
+Look up addresses in the user database.
+.pp
+Configuration files prior to level 6
+assume the `A', `w', `5', `:', `|', `/', and `@' options
+on the mailer named
+.q local .
+.pp
+The mailer with the special name
+.q error
+can be used to generate a user error.
+The (optional) host field is an exit status to be returned,
+and the user field is a message to be printed.
+The exit status may be numeric or one of the values
+USAGE, NOUSER, NOHOST, UNAVAILABLE, SOFTWARE, TEMPFAIL, PROTOCOL, or CONFIG
+to return the corresponding EX_ exit code,
+or an enhanced error code as described in RFC 1893,
+.ul
+Enhanced Mail System Status Codes.
+For example, the entry:
+.(b
+$#error $@ NOHOST $: Host unknown in this domain
+.)b
+on the RHS of a rule
+will cause the specified error to be generated
+and the
+.q "Host unknown"
+exit status to be returned
+if the LHS matches.
+This mailer is only functional in rulesets 0, 5,
+or one of the check_* rulesets.
+.pp
+The mailer named
+.q local
+.i must
+be defined in every configuration file.
+This is used to deliver local mail,
+and is treated specially in several ways.
+Additionally, three other mailers named
+.q prog ,
+.q *file* ,
+and
+.q *include*
+may be defined to tune the delivery of messages to programs,
+files,
+and :include: lists respectively.
+They default to:
+.(b
+Mprog, P=/bin/sh, F=lsD, A=sh \-c $u
+M*file*, P=/dev/null, F=lsDFMPEu, A=FILE
+M*include*, P=/dev/null, F=su, A=INCLUDE
+.)b
+.pp
+The Sender and Recipient rewriting sets
+may either be a simple ruleset id
+or may be two ids separated by a slash;
+if so, the first rewriting set is applied to envelope
+addresses
+and the second is applied to headers.
+.pp
+The Directory
+is actually a colon-separated path of directories to try.
+For example, the definition
+.q D=$z:/
+first tries to execute in the recipient's home directory;
+if that is not available,
+it tries to execute in the root of the filesystem.
+This is intended to be used only on the
+.q prog
+mailer,
+since some shells (such as
+.i csh )
+refuse to execute if they cannot read the home directory.
+Since the queue directory is not normally readable by unprivileged users
+.i csh
+scripts as recipients can fail.
+.pp
+The Userid
+specifies the default user and group id to run as,
+overriding the
+.b DefaultUser
+option (q.v.).
+If the
+.b S
+mailer flag is also specified,
+this is the user and group to run as in all circumstances.
+This may be given as
+.i user:group
+to set both the user and group id;
+either may be an integer or a symbolic name to be looked up
+in the
+.i passwd
+and
+.i group
+files respectively.
+If only a symbolic user name is specified,
+the group id in the
+.i passwd
+file for that user is used as the group id.
+.pp
+The Charset field
+is used when converting a message to MIME;
+this is the character set used in the
+Content-Type: header.
+If this is not set, the
+.b DefaultCharset
+option is used,
+and if that is not set, the value
+.q unknown-8bit
+is used.
+.b WARNING:
+this field applies to the sender's mailer,
+not the recipient's mailer.
+For example, if the envelope sender address
+lists an address on the local network
+and the recipient is on an external network,
+the character set will be set from the Charset= field
+for the local network mailer,
+not that of the external network mailer.
+.pp
+The Type= field
+sets the type information
+used in MIME error messages
+as defined by
+RFC 1894.
+It is actually three values separated by slashes:
+the MTA-type (that is, the description of how hosts are named),
+the address type (the description of e-mail addresses),
+and the diagnostic type (the description of error diagnostic codes).
+Each of these must be a registered value
+or begin with
+.q X\- .
+The default is
+.q dns/rfc822/smtp .
+.sh 2 "H \*- Define Header"
+.pp
+The format of the header lines that
+.i sendmail
+inserts into the message
+are defined by the
+.b H
+line.
+The syntax of this line is:
+.(b F
+.b H [\c
+.b ? \c
+.i mflags \c
+.b ? ]\c
+.i hname \c
+.b :
+.i htemplate
+.)b
+Continuation lines in this spec
+are reflected directly into the outgoing message.
+The
+.i htemplate
+is macro expanded before insertion into the message.
+If the
+.i mflags
+(surrounded by question marks)
+are specified,
+at least one of the specified flags
+must be stated in the mailer definition
+for this header to be automatically output.
+If one of these headers is in the input
+it is reflected to the output
+regardless of these flags.
+.pp
+Some headers have special semantics
+that will be described later.
+.sh 2 "O \*- Set Option"
+.pp
+There are a number of
+global
+options that
+can be set from a configuration file.
+Options are represented by full words;
+some are also representable as single characters
+for back compatibility.
+The syntax of this line is:
+.(b F
+.b O \0
+.i option \c
+.b = \c
+.i value
+.)b
+This sets option
+.i option
+to be
+.i value .
+Note that there
+.i must
+be a space between the letter `O' and the name of the option.
+An older version is:
+.(b F
+.b O \c
+.i o\|value
+.)b
+where the option
+.i o
+is a single character.
+Depending on the option,
+.i value
+may be a string, an integer,
+a boolean
+(with legal values
+.q t ,
+.q T ,
+.q f ,
+or
+.q F ;
+the default is TRUE),
+or
+a time interval.
+.pp
+The options supported (with the old, one character names in brackets) are:
+.nr ii 1i
+.ip "AliasFile=\fIspec, spec, ...\fP"
+[A]
+Specify possible alias file(s).
+Each
+.i spec
+should be in the format
+``\c
+.i class \c
+.b :
+.i file ''
+where
+.i class \c
+.b :
+is optional and defaults to ``implicit''.
+Depending on how
+.i sendmail
+is compiled, valid classes are
+.q implicit
+(search through a compiled-in list of alias file types,
+for back compatibility),
+.q hash
+(if
+.sm NEWDB
+is specified),
+.q dbm
+(if
+.sm NDBM
+is specified),
+.q stab
+(internal symbol table \*- not normally used
+unless you have no other database lookup),
+or
+.q nis
+(if
+.sm NIS
+is specified).
+If a list of
+.i spec s
+are provided,
+.i sendmail
+searches them in order.
+.ip AliasWait=\fItimeout\fP
+[a]
+If set,
+wait up to
+.i timeout
+(units default to minutes)
+for an
+.q @:@
+entry to exist in the alias database
+before starting up.
+If it does not appear in the
+.i timeout
+interval
+rebuild the database
+(if the
+.b AutoRebuildAliases
+option is also set)
+or issue a warning.
+.ip AllowBogusHELO
+[no short name]
+If set, allow HELO SMTP commands that don't include a host name.
+Setting this violates RFC 1123 section 5.2.5,
+but is necessary to interoperate with several SMTP clients.
+If there is a value, it is still checked for legitimacy.
+.ip AutoRebuildAliases
+[D]
+If set,
+rebuild the alias database if necessary and possible.
+If this option is not set,
+.i sendmail
+will never rebuild the alias database
+unless explicitly requested
+using
+.b \-bi .
+Not recommended \(em can cause thrashing.
+.ip BlankSub=\fIc\fP
+[B]
+Set the blank substitution character to
+.i c .
+Unquoted spaces in addresses are replaced by this character.
+Defaults to space (i.e., no change is made).
+.ip CheckAliases
+[n]
+Validate the RHS of aliases when rebuilding the alias database.
+.ip CheckpointInterval=\fIN\fP
+[C]
+Checkpoints the queue every
+.i N
+(default 10)
+addresses sent.
+If your system crashes during delivery to a large list,
+this prevents retransmission to any but the last
+.I N
+recipients.
+.ip ClassFactor=\fIfact\fP
+[z]
+The indicated
+.i fact or
+is multiplied by the message class
+(determined by the Precedence: field in the user header
+and the
+.b P
+lines in the configuration file)
+and subtracted from the priority.
+Thus, messages with a higher Priority: will be favored.
+Defaults to 1800.
+.ip ColonOkInAddr
+[no short name]
+If set, colons are acceptable in e-mail addresses
+(e.g.,
+.q host:user ).
+If not set, colons indicate the beginning of a RFC 822 group construct
+(\c
+.q "groupname: member1, member2, ... memberN;" ).
+Doubled colons are always acceptable
+(\c
+.q nodename::user )
+and proper route-addr nesting is understood
+(\c
+.q <@relay:user@host> ).
+Furthermore, this option defaults on if the configuration version level
+is less than 6 (for back compatibility).
+However, it must be off for full compatibility with RFC 822.
+.ip ConnectionCacheSize=\fIN\fP
+[k]
+The maximum number of open connections that will be cached at a time.
+The default is one.
+This delays closing the current connection until
+either this invocation of
+.i sendmail
+needs to connect to another host
+or it terminates.
+Setting it to zero defaults to the old behavior,
+that is, connections are closed immediately.
+Since this consumes file descriptors,
+the connection cache should be kept small:
+4 is probably a practical maximum.
+.ip ConnectionCacheTimeout=\fItimeout\fP
+[K]
+The maximum amount of time a cached connection will be permitted to idle
+without activity.
+If this time is exceeded,
+the connection is immediately closed.
+This value should be small (on the order of ten minutes).
+Before
+.i sendmail
+uses a cached connection,
+it always sends a RSET command
+to check the connection;
+if this fails, it reopens the connection.
+This keeps your end from failing if the other end times out.
+The point of this option is to be a good network neighbor
+and avoid using up excessive resources
+on the other end.
+The default is five minutes.
+.ip ConnectionRateThrottle=\fIN\fP
+[no short name]
+If set to a positive value,
+allow no more than
+.i N
+incoming daemon connections in a one second period.
+This is intended to flatten out peaks
+and allow the load average checking to cut in.
+Defaults to zero (no limits).
+.ip DaemonPortOptions=\fIoptions\fP
+[O]
+Set server SMTP options.
+The options are
+.i key=value
+pairs.
+Known keys are:
+.(b
+.ta 1i
+Port	Name/number of listening port (defaults to "smtp")
+Addr	Address mask (defaults INADDR_ANY)
+Family	Address family (defaults to INET)
+Listen	Size of listen queue (defaults to 10)
+SndBufSize	Size of TCP send buffer
+RcvBufSize	Size of TCP receive buffer
+.)b
+The
+.i Addr ess
+mask may be a numeric address in dot notation
+or a network name.
+.ip DefaultCharSet=\fIcharset\fP
+[no short name]
+When a message that has 8-bit characters but is not in MIME format
+is converted to MIME
+(see the EightBitMode option)
+a character set must be included in the Content-Type: header.
+This character set is normally set from the Charset= field
+of the mailer descriptor.
+If that is not set, the value of this option is used.
+If this option is not set, the value
+.q unknown-8bit
+is used.
+.ip DefaultUser=\fIuser:group\fP
+[u]
+Set the default userid for mailers to
+.i user:group .
+If
+.i group
+is omitted and 
+.i user
+is a user name
+(as opposed to a numeric user id)
+the default group listed in the /etc/passwd file for that user is used
+as the default group.
+Both
+.i user
+and
+.i group
+may be numeric.
+Mailers without the
+.i S
+flag in the mailer definition
+will run as this user.
+Defaults to 1:1.
+The value can also be given as a symbolic user name.\**
+.(f
+\**The old
+.b g
+option has been combined into the
+.b DefaultUser
+option.
+.)f
+.ip DeliveryMode=\fIx\fP
+[d]
+Deliver in mode
+.i x .
+Legal modes are:
+.(b
+.ta 4n
+i	Deliver interactively (synchronously)
+b	Deliver in background (asynchronously)
+q	Just queue the message (deliver during queue run)
+d	Defer delivery and all map lookups (deliver during queue run)
+.)b
+Defaults to ``b'' if no option is specified,
+``i'' if it is specified but given no argument
+(i.e., ``Od'' is equivalent to ``Odi'').
+The
+.b \-v
+command line flag sets this to
+.b i .
+.ip DialDelay=\fIsleeptime\fP
+[no short name]
+Dial-on-demand network connections can see timeouts
+if a connection is opened before the call is set up.
+If this is set to an interval and a connection times out
+on the first connection being attempted
+.i sendmail
+will sleep for this amount of time and try again.
+This should give your system time to establish the connection
+to your service provider.
+Units default to seconds, so
+.q DialDelay=5
+uses a five second delay.
+Defaults to zero
+(no retry).
+.ip DontExpandCnames
+[no short name]
+The standards say that all host addresses used in a mail message
+must be fully canonical.
+For example, if your host is named
+.q Cruft.Foo.ORG
+and also has an alias of
+.q FTP.Foo.ORG ,
+the former name must be used at all times.
+This is enforced during host name canonification
+($[ ... $] lookups).
+If this option is set, the protocols are ignored and the
+.q wrong
+thing is done.
+However, the IETF is moving toward changing this standard,
+so the behaviour may become acceptable.
+Please note that hosts downstream may still rewrite the address
+to be the true canonical name however.
+.ip DontInitGroups
+[no short name]
+If set,
+.i sendmail
+will avoid using the initgroups(3) call.
+If you are running NIS,
+this causes a sequential scan of the groups.byname map,
+which can cause your NIS server to be badly overloaded in a large domain.
+The cost of this is that the only group found for users
+will be their primary group (the one in the password file),
+which will make file access permissions somewhat more restrictive.
+Has no effect on systems that don't have group lists.
+.ip DontPruneRoutes
+[R]
+Normally,
+.i sendmail
+tries to eliminate any unnecessary explicit routes
+when sending an error message
+(as discussed in RFC 1123 \(sc 5.2.6).
+For example,
+when sending an error message to
+.(b
+<@known1,@known2,@known3:user@unknown>
+.)b
+.i sendmail
+will strip off the
+.q @known1,@known2
+in order to make the route as direct as possible.
+However, if the
+.b R
+option is set, this will be disabled,
+and the mail will be sent to the first address in the route,
+even if later addresses are known.
+This may be useful if you are caught behind a firewall.
+.ip DoubleBounceAddress=\fIerror-address\fP
+[no short name]
+If an error occurs when sending an error message,
+send the error report
+(termed a
+.q "double bounce"
+because it is an error
+.q bounce
+that occurs when trying to send another error
+.q bounce )
+to the indicated address.
+If not set, defaults to
+.q postmaster .
+.ip EightBitMode=\fIaction\fP
+[8]
+Set handling of eight-bit data.
+There are two kinds of eight-bit data:
+that declared as such using the
+.b BODY=8BITMIME
+ESMTP declaration or the
+.b \-B8BITMIME
+command line flag,
+and undeclared 8-bit data, that is,
+input that just happens to be eight bits.
+There are three basic operations that can happen:
+undeclared 8-bit data can be automatically converted to 8BITMIME,
+undeclared 8-bit data can be passed as-is without conversion to MIME
+(``just send 8''),
+and declared 8-bit data can be converted to 7-bits
+for transmission to a non-8BITMIME mailer.
+The possible
+.i action s
+are:
+.(b
+.\"  r	Reject undeclared 8-bit data;
+.\"	don't convert 8BITMIME\(->7BIT (``reject'')
+  s	Reject undeclared 8-bit data (``strict'')
+.\"	do convert 8BITMIME\(->7BIT (``strict'')
+.\"  c	Convert undeclared 8-bit data to MIME;
+.\"	don't convert 8BITMIME\(->7BIT (``convert'')
+  m	Convert undeclared 8-bit data to MIME (``mime'')
+.\"	do convert 8BITMIME\(->7BIT (``mime'')
+.\"  j	Pass undeclared 8-bit data;
+.\"	don't convert 8BITMIME\(->7BIT (``just send 8'')
+  p	Pass undeclared 8-bit data (``pass'')
+.\"	do convert 8BITMIME\(->7BIT (``pass'')
+.\"  a	Adaptive algorithm: see below
+.)b
+.\"The adaptive algorithm is to accept 8-bit data,
+.\"converting it to 8BITMIME only if the receiver understands that,
+.\"otherwise just passing it as undeclared 8-bit data;
+.\"8BITMIME\(->7BIT conversions are done.
+In all cases properly declared 8BITMIME data will be converted to 7BIT
+as needed.
+.ip ErrorHeader=\fIfile-or-message\fP
+[E]
+Prepend error messages with the indicated message.
+If it begins with a slash,
+it is assumed to be the pathname of a file
+containing a message (this is the recommended setting).
+Otherwise, it is a literal message.
+The error file might contain the name, email address, and/or phone number
+of a local postmaster who could provide assistance
+in to end users.
+If the option is missing or null,
+or if it names a file which does not exist or which is not readable,
+no message is printed.
+.ip ErrorMode=\fIx\fP
+[e]
+Dispose of errors using mode
+.i x .
+The values for
+.i x
+are:
+.(b
+p	Print error messages (default)
+q	No messages, just give exit status
+m	Mail back errors
+w	Write back errors (mail if user not logged in)
+e	Mail back errors and give zero exit stat always
+.)b
+.ip FallbackMXhost=\fIfallbackhost\fP
+[V]
+If specified, the
+.i fallbackhost
+acts like a very low priority MX
+on every host.
+This is intended to be used by sites with poor network connectivity.
+.ip ForkEachJob
+[Y]
+If set,
+deliver each job that is run from the queue in a separate process.
+Use this option if you are short of memory,
+since the default tends to consume considerable amounts of memory
+while the queue is being processed.
+.ip ForwardPath=\fIpath\fP
+[J]
+Set the path for searching for users' .forward files.
+The default is
+.q $z/.forward .
+Some sites that use the automounter may prefer to change this to
+.q /var/forward/$u
+to search a file with the same name as the user in a system directory.
+It can also be set to a sequence of paths separated by colons;
+.i sendmail
+stops at the first file it can successfully and safely open.
+For example,
+.q /var/forward/$u:$z/.forward
+will search first in /var/forward/\c
+.i username
+and then in
+.i ~username /.forward
+(but only if the first file does not exist).
+.ip HelpFile=\fIfile\fP
+[H]
+Specify the help file
+for SMTP.
+.ip HoldExpensive
+[c]
+If an outgoing mailer is marked as being expensive,
+don't connect immediately.
+This requires that queueing be compiled in,
+since it will depend on a queue run process to
+actually send the mail.
+.ip HostsFile=\fIpath\fP
+[no short name]
+The path to the hosts database,
+normally
+.q /etc/hosts .
+This option is only consulted when sendmail
+is canonifying addresses,
+and then only when
+.q files
+is in the
+.q hosts
+service switch entry.
+In particular, this file is
+.i never
+used when looking up host addresses;
+that is under the control of the system
+.i gethostbyname (3)
+routine.
+.ip HostStatusDirectory=\fIpath\fP
+[no short name]
+The location of the long term host status information.
+When set,
+information about the status of hosts
+(e.g., host down or not accepting connections)
+will be shared between all
+.i sendmail
+processes;
+normally, this information is only held within a single queue run.
+This option requires a connection cache of at least 1 to function.
+If the option begins with a leading `/',
+it is an absolute pathname;
+otherwise,
+it is relative to the mail queue directory.
+A suggested value for sites desiring persistent host status is
+.q \&.hoststat
+(i.e., a subdirectory of the queue directory).
+.ip IgnoreDots
+[i]
+Ignore dots in incoming messages.
+This is always disabled (that is, dots are always accepted)
+when reading SMTP mail.
+.ip LogLevel=\fIn\fP
+[L]
+Set the default log level to
+.i n .
+Defaults to 9.
+.ip M\fIx\|value\fP
+[no long version]
+Set the macro
+.i x
+to
+.i value .
+This is intended only for use from the command line.
+The
+.b \-M
+flag is preferred.
+.ip MatchGECOS
+[G]
+Allow fuzzy matching on the GECOS field.
+If this flag is set,
+and the usual user name lookups fail
+(that is, there is no alias with this name and a
+.i getpwnam
+fails),
+sequentially search the password file
+for a matching entry in the GECOS field.
+This also requires that MATCHGECOS
+be turned on during compilation.
+This option is not recommended.
+.ip MaxDaemonChildren=\fIN\fP
+[no short name]
+If set,
+.i sendmail
+will refuse connections when it has more than
+.i N
+children processing incoming mail.
+This does not limit the number of outgoing connections.
+If not set, there is no limit to the number of children --
+that is, the system load averaging controls this.
+.ip MaxHopCount=\fIN\fP
+[h]
+The maximum hop count.
+Messages that have been processed more than
+.i N
+times are assumed to be in a loop and are rejected.
+Defaults to 25.
+.ip MaxHostStatAge=\fIage\fP
+[no short name]
+Not yet implemented.
+This option specifies how long host status information will be retained.
+For example, if a host is found to be down,
+connections to that host will not be retried for this interval.
+The units default to minutes.
+.ip MaxMessageSize=\fIN\fP
+[no short name]
+Specify the maximum message size
+to be advertised in the ESMTP EHLO response.
+Messages larger than this will be rejected.
+.ip MaxQueueRunSize=\fIN\fP
+[no short name]
+The maximum number of jobs that will be processed
+in a single queue run.
+If not set, there is no limit on the size.
+If you have very large queues or a very short queue run interval
+this could be unstable.
+However, since the first
+.i N
+jobs in queue directory order are run (rather than the
+.i N
+highest priority jobs)
+this should be set as high as possible to avoid
+.q losing
+jobs that happen to fall late in the queue directory.
+.ip MeToo
+[m]
+Send to me too,
+even if I am in an alias expansion.
+.ip MinFreeBlocks=\fIN\fP
+[b]
+Insist on at least
+.i N
+blocks free on the filesystem that holds the queue files
+before accepting email via SMTP.
+If there is insufficient space
+.i sendmail
+gives a 452 response
+to the MAIL command.
+This invites the sender to try again later.
+.ip MinQueueAge=\fPage\fP
+[no short name]
+Don't process any queued jobs
+that have been in the queue less than the indicated time interval.
+This is intended to allow you to get responsiveness
+by processing the queue fairly frequently
+without thrashing your system by trying jobs too often.
+The default units are minutes.
+.ip MustQuoteChars=\fIs\fP
+[no short name]
+Sets the list of characters that must be quoted if used in a full name
+that is in the phrase part of a ``phrase <address>'' syntax.
+The default is ``\'.''.
+The characters ``@,;:\e()[]'' are always added to this list.
+.ip NoRecipientAction
+[no short name]
+The action to take when you receive a message that has no valid
+recipient headers (To:, Cc:, Bcc:, or Apparently-To: \(em
+the last included for back compatibility with old
+.i sendmail s).
+It can be
+.b None
+to pass the message on unmodified,
+which violates the protocol,
+.b Add-To
+to add a To: header with any recipients it can find in the envelope
+(which might expose Bcc: recipients),
+.b Add-Apparently-To
+to add an Apparently-To: header
+(this is only for back-compatibility
+and is officially deprecated),
+.b Add-To-Undisclosed
+to add a header
+.q "To: undisclosed-recipients:;"
+to make the header legal without disclosing anything,
+or
+.b Add-Bcc
+to add an empty Bcc: header.
+.ip OldStyleHeaders
+[o]
+Assume that the headers may be in old format,
+i.e.,
+spaces delimit names.
+This actually turns on
+an adaptive algorithm:
+if any recipient address contains a comma, parenthesis,
+or angle bracket,
+it will be assumed that commas already exist.
+If this flag is not on,
+only commas delimit names.
+Headers are always output with commas between the names.
+Defaults to off.
+.ip OperatorChars=\fIcharlist\fP
+[$o macro]
+The list of characters that are considered to be
+.q operators ,
+that is, characters that delimit tokens.
+All operator characters are tokens by themselves;
+sequences of non-operator characters are also tokens.
+White space characters separate tokens
+but are not tokens themselves \(em for example,
+.q AAA.BBB
+has three tokens, but
+.q "AAA BBB"
+has two.
+If not set, OperatorChars defaults to
+.q \&.\|:\|@\|[\|] ;
+additionally, the characters
+.q (\|)\|<\|>\|,\|;
+are always operators.
+.ip PostmasterCopy=\fIpostmaster\fP
+[P]
+If set,
+copies of error messages will be sent to the named
+.i postmaster .
+Only the header of the failed message is sent.
+Since most errors are user problems,
+this is probably not a good idea on large sites,
+and arguably contains all sorts of privacy violations,
+but it seems to be popular with certain operating systems vendors.
+Defaults to no postmaster copies.
+.ip PrivacyOptions=\fI\|opt,opt,...\fP
+[p]
+Set the privacy
+.i opt ions.
+``Privacy'' is really a misnomer;
+many of these are just a way of insisting on stricter adherence
+to the SMTP protocol.
+The
+.i opt ions
+can be selected from:
+.(b
+.ta \w'needvrfyhelo'u+3n
+public	Allow open access
+needmailhelo	Insist on HELO or EHLO command before MAIL
+needexpnhelo	Insist on HELO or EHLO command before EXPN
+noexpn	Disallow EXPN entirely
+needvrfyhelo	Insist on HELO or EHLO command before VRFY
+novrfy	Disallow VRFY entirely
+restrictmailq	Restrict mailq command
+restrictqrun	Restrict \-q command line flag
+noreceipts	Don't return success DSNs
+goaway	Disallow essentially all SMTP status queries
+authwarnings	Put X-Authentication-Warning: headers in messages
+.)b
+The
+.q goaway
+pseudo-flag sets all flags except
+.q restrictmailq
+and
+.q restrictqrun .
+If mailq is restricted,
+only people in the same group as the queue directory
+can print the queue.
+If queue runs are restricted,
+only root and the owner of the queue directory
+can run the queue.
+Authentication Warnings add warnings about various conditions
+that may indicate attempts to spoof the mail system,
+such as using an non-standard queue directory.
+.ip QueueDirectory=\fIdir\fP
+[Q]
+Use the named
+.i dir
+as the queue directory.
+.ip QueueFactor=\fIfactor\fP
+[q]
+Use
+.i factor
+as the multiplier in the map function
+to decide when to just queue up jobs rather than run them.
+This value is divided by the difference between the current load average
+and the load average limit
+(\c
+.b QueueLA
+option)
+to determine the maximum message priority
+that will be sent.
+Defaults to 600000.
+.ip QueueLA=\fILA\fP
+[x]
+When the system load average exceeds
+.i LA ,
+just queue messages
+(i.e., don't try to send them).
+Defaults to 8.
+.ip QueueSortOrder=\fIalgorithm\fP
+[no short name]
+Sets the
+.i algorithm
+used for sorting the queue.
+Only the first character of the value is used.
+Legal values are
+.q host
+(to order by the name of the first host name of the first recipient),
+.q time
+(to order by the submission time),
+and
+.q priority
+(to order by message priority).
+Host ordering makes better use of the connection cache,
+but may tend to process low priority messages
+that go to a single host
+over high priority messages that go to several hosts;
+it probably shouldn't be used on slow network links.
+Time ordering is almost always a bad idea,
+since it allows large, bulk mail to go out
+before smaller, personal mail,
+but may have applicability on some hosts with very fast connections.
+Priority ordering is the default.
+.ip QueueTimeout=\fItimeout\fP
+[T]
+A synonym for
+.q Timeout.queuereturn .
+Use that form instead of the
+.q QueueTimeout
+form.
+.ip ResolverOptions=\fIoptions\fP
+[I]
+Set resolver options.
+Values can be set using
+.b + \c
+.i flag
+and cleared using
+.b \- \c
+.i flag ;
+the
+.i flag s
+can be
+.q debug ,
+.q aaonly ,
+.q usevc ,
+.q primary ,
+.q igntc ,
+.q recurse ,
+.q defnames ,
+.q stayopen ,
+or
+.q dnsrch .
+The string
+.q HasWildcardMX
+(without a
+.b +
+or
+.b \- )
+can be specified to turn off matching against MX records
+when doing name canonifications.
+.b N.B.
+Prior to 8.7,
+this option indicated that the name server be responding
+in order to accept addresses.
+This has been replaced by checking to see
+if the
+.q dns
+method is listed in the service switch entry for the
+.q hosts
+service.
+.ip RunAsUser=\fIuser\fP
+[no short name]
+The
+.i user
+parameter may be a user name
+(looked up in
+.i /etc/passwd )
+or a numeric user id;
+either form can have
+.q ":group"
+attached
+(where group can be numeric or symbolic).
+If set to a non-zero (non-root) value,
+.i sendmail
+will change to this user id shortly after startup\**.
+.(f
+\**When running as a daemon,
+it changes to this user after accepting a connection
+but before reading any
+.sm SMTP
+commands.
+.)f
+This avoids a certain class of security problems.
+However, this means that all
+.q \&.forward
+and
+.q :include:
+files must be readable by the indicated
+.i user ,
+and on systems that don't support the saved uid bit properly,
+all files to be written must be writable by
+.i user
+and all programs will be executed by
+.i user .
+It is also incompatible with the
+.b SafeFileEnvironment
+option.
+In other words, it may not actually add much to security on an average system,
+and may in fact detract from security
+(because other file permissions must be loosened).
+However, it should be useful on firewalls and other
+places where users don't have accounts and the aliases file is
+well constrained.
+.ip RecipientFactor=\fIfact\fP
+[y]
+The indicated
+.i fact or
+is added to the priority (thus
+.i lowering
+the priority of the job)
+for each recipient,
+i.e., this value penalizes jobs with large numbers of recipients.
+Defaults to 30000.
+.ip RefuseLA=\fILA\fP
+[X]
+When the system load average exceeds
+.i LA ,
+refuse incoming SMTP connections.
+Defaults to 12.
+.ip RetryFactor=\fIfact\fP
+[Z]
+The
+.i fact or
+is added to the priority
+every time a job is processed.
+Thus,
+each time a job is processed,
+its priority will be decreased by the indicated value.
+In most environments this should be positive,
+since hosts that are down are all too often down for a long time.
+Defaults to 90000.
+.ip SafeFileEnvironment=\fIdir\fP
+[no short name]
+If this option is set,
+.i sendmail
+will do a
+.i chroot (2)
+call into the indicated
+.i dir ectory
+before doing any file writes.
+If the file name specified by the user begins with
+.i dir ,
+that partial path name will be stripped off before writing,
+so (for example)
+if the SafeFileEnvironment variable is set to
+.q /safe
+then aliases of
+.q /safe/logs/file
+and
+.q /logs/file
+actually indicate the same file.
+Additionally, if this option is set,
+.i sendmail
+refuses to deliver to symbolic links.
+.ip SaveFromLine
+[f]
+Save
+Unix-style
+.q From
+lines at the front of headers.
+Normally they are assumed redundant
+and discarded.
+.ip SendMIMEErrors
+[j]
+If set, send error messages in MIME format
+(see RFC1521 and RFC1344 for details).
+If disabled,
+.i sendmail
+will not return the DSN keyword in response to an EHLO
+and will not do Delivery Status Notification processing as described in
+RFC1891.
+.ip ServiceSwitchFile=\fIfilename\fP
+[no short name]
+If your host operating system has a service switch abstraction
+(e.g., /etc/nsswitch.conf on Solaris
+or /etc/svc.conf on Ultrix and DEC OSF/1)
+that service will be consulted and this option is ignored.
+Otherwise, this is the name of a file
+that provides the list of methods used to implement particular services.
+The syntax is a series of lines,
+each of which is a sequence of words.
+The first word is the service name,
+and following words are service types.
+The services that
+.i sendmail
+consults directly are
+.q aliases
+and
+.q hosts.
+Service types can be
+.q dns ,
+.q nis ,
+.q nisplus ,
+or
+.q files
+(with the caveat that the appropriate support
+must be compiled in
+before the service can be referenced).
+If ServiceSwitchFile is not specified, it defaults to /etc/service.switch.
+If that file does not exist, the default switch is:
+.(b
+aliases	files
+hosts	dns nis files
+.)b
+The default file is
+.q /etc/service.switch .
+.ip SevenBitInput
+[7]
+Strip input to seven bits for compatibility with old systems.
+This shouldn't be necessary.
+.ip SingleLineFromHeader
+[no short name]
+If set, From: lines that have embedded newlines are unwrapped
+onto one line.
+This is to get around a botch in Lotus Notes
+that apparently cannot understand legally wrapped RFC822 headers.
+.ip SingleThreadDelivery
+[no short name]
+If set, a client machine will never try to open two SMTP connections
+to a single server machine at the same time,
+even in different processes.
+That is, if another
+.i sendmail
+is already talking to some host a new
+.i sendmail
+will not open another connection.
+This property is of mixed value;
+although this reduces the load on the other machine,
+it can cause mail to be delayed
+(for example, if one
+.i sendmail
+is delivering a huge message, other
+.i sendmail s
+won't be able to send even small messages).
+Also, it requires another file descriptor
+(for the lock file)
+per connection, so you may have to reduce the
+.b ConnectionCacheSize
+option to avoid running out of per-process file descriptors.
+Requires the
+.b HostStatusDirectory
+option.
+.ip SmtpGreetingMessage=\fImessage\fP
+[$e macro]
+The message printed when the SMTP server starts up.
+Defaults to
+.q "$j Sendmail $v ready at $b".
+.ip StatusFile=\fIfile\fP
+[S]
+Log summary statistics in the named
+.i file .
+If not set,
+no summary statistics are saved.
+This file does not grow in size.
+It can be printed using the
+.i mailstats (8)
+program.
+.ip SuperSafe
+[s]
+Be super-safe when running things,
+i.e.,
+always instantiate the queue file,
+even if you are going to attempt immediate delivery.
+.i Sendmail
+always instantiates the queue file
+before returning control the client
+under any circumstances.
+This should really
+.i always
+be set.
+.ip TempFileMode=\fImode\fP
+[F]
+The file mode for queue files.
+It is interpreted in octal by default.
+Defaults to 0600.
+.ip Timeout.\fItype\fP=\|\fItimeout\fP
+[r; subsumes old T option as well]
+Set timeout values.
+The actual timeout is indicated by the
+.i type .
+The recognized timeouts and their default values, and their
+minimum values specified in RFC 1123 section 5.3.2 are:
+.(b
+.ta \w'datafinal'u+3n
+initial	wait for initial greeting message [5m, 5m]
+helo	reply to HELO or EHLO command [5m, none]
+mail	reply to MAIL command [10m, 5m]
+rcpt	reply to RCPT command [1h, 5m]
+datainit	reply to DATA command [5m, 2m]
+datablock	data block read [1h, 3m]
+datafinal	reply to final ``.'' in data [1h, 10m]
+rset	reply to RSET command [5m, none]
+quit	reply to QUIT command [2m, none]
+misc	reply to NOOP and VERB commands [2m, none]
+ident	IDENT protocol timeout [30s, none]
+fileopen\(dg	timeout on opening .forward and :include: files [60s, none]
+command\(dg	command read [1h, 5m]
+queuereturn\(dg	how long until a message is returned [5d, 5d]
+queuewarn\(dg	how long until a warning is sent [none, none]
+hoststatus\(dg	how long until host status is ``stale'' [30m, none]
+.)b
+All but those marked with a dagger (\(dg)
+apply to client SMTP.
+If the message is submitted using the
+.sm NOTIFY
+.sm SMTP
+extension,
+warning messages will only be sent if
+.sm NOTIFY=DELAY
+is specified.
+The queuereturn and queuewarn timeouts
+can be further qualified with a tag based on the Precedence: field
+in the message;
+they must be one of
+.q urgent
+(indicating a positive non-zero precedence)
+.q normal
+(indicating a zero precedence), or
+.q non-urgent
+(indicating negative precedences).
+For example, setting
+.q Timeout.queuewarn.urgent=1h
+sets the warning timeout for urgent messages only
+to one hour.
+The default if no precedence is indicated
+is to set the timeout for all precedences.
+.ip TimeZoneSpec=\fItzinfo\fP
+[t]
+Set the local time zone info to
+.i tzinfo
+\*- for example,
+.q PST8PDT .
+Actually, if this is not set,
+the TZ environment variable is cleared (so the system default is used);
+if set but null, the user's TZ variable is used,
+and if set and non-null the TZ variable is set to this value.
+.ip TryNullMXList
+[w]
+If this system is the
+.q best
+(that is, lowest preference)
+MX for a given host,
+its configuration rules should normally detect this situation
+and treat that condition specially
+by forwarding the mail to a UUCP feed,
+treating it as local,
+or whatever.
+However, in some cases (such as Internet firewalls)
+you may want to try to connect directly to that host
+as though it had no MX records at all.
+Setting this option causes
+.i sendmail
+to try this.
+The downside is that errors in your configuration
+are likely to be diagnosed as
+.q "host unknown"
+or
+.q "message timed out"
+instead of something more meaningful.
+This option is disrecommended.
+.ip UnixFromLine=\fIfromline\fP
+[$l macro]
+Defines the format used when
+.i sendmail
+must add a UNIX-style From_ line
+(that is, a line beginning
+.q From<space>user ).
+Defaults to
+.q "From $g  $d" .
+Don't change this unless your system uses a different UNIX mailbox format
+(very unlikely).
+.ip UnsafeGroupWrites
+[no short name]
+If set,
+:include: and .forward files that are group writable are considered
+.q unsafe ,
+that is,
+they cannot reference programs or write directly to files.
+World writable :include: and .forward files
+are always unsafe..
+.ip UseErrorsTo
+[l]
+If there is an
+.q Errors-To:
+header, send error messages to the addresses listed there.
+They normally go to the envelope sender.
+Use of this option causes
+.i sendmail
+to violate RFC 1123.
+This option is disrecommended and deprecated.
+.ip UserDatabaseSpec=\fIudbspec\fP
+[U]
+The user database specification.
+.ip UserSubmission
+[no short name]
+This is an initial submission directly from a Mail User Agent.
+This can be set in the configuration file if you have
+MUAs that don't pass the
+.b \-U
+flag or use the
+XUSR
+ESMTP extension,
+but some relayed mail may get inappropriately rewritten if you do.
+.ip Verbose
+[v]
+Run in verbose mode.
+If this is set,
+.i sendmail
+adjusts options
+.b HoldExpensive
+(old
+.b c )
+and
+.b DeliveryMode
+(old
+.b d )
+so that all mail is delivered completely
+in a single job
+so that you can see the entire delivery process.
+Option
+.b Verbose
+should
+.i never
+be set in the configuration file;
+it is intended for command line use only.
+.lp
+All options can be specified on the command line using the
+\-O or \-o flag,
+but most will cause
+.i sendmail
+to relinquish its setuid permissions.
+The options that will not cause this are
+MinFreeBlocks [b],
+DeliveryMode [d],
+ErrorMode [e],
+IgnoreDots [i],
+LogLevel [L],
+MeToo [m],
+OldStyleHeaders [o],
+PrivacyOptions [p],
+Timeouts [r],
+SuperSafe [s],
+Verbose [v],
+CheckpointInterval [C],
+and
+SevenBitInput [7].
+Also, M (define macro) when defining the r or s macros
+is also considered
+.q safe .
+.sh 2 "P \*- Precedence Definitions"
+.pp
+Values for the
+.q "Precedence:"
+field may be defined using the
+.b P
+control line.
+The syntax of this field is:
+.(b
+\fBP\fP\fIname\fP\fB=\fP\fInum\fP
+.)b
+When the
+.i name
+is found in a
+.q Precedence:
+field,
+the message class is set to
+.i num .
+Higher numbers mean higher precedence.
+Numbers less than zero
+have the special property
+that if an error occurs during processing
+the body of the message will not be returned;
+this is expected to be used for
+.q "bulk"
+mail such as through mailing lists.
+The default precedence is zero.
+For example,
+our list of precedences is:
+.(b
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=\-30
+Pbulk=\-60
+Pjunk=\-100
+.)b
+People writing mailing list exploders
+are encouraged to use
+.q "Precedence: list" .
+Older versions of
+.i sendmail
+(which discarded all error returns for negative precedences)
+didn't recognize this name, giving it a default precedence of zero.
+This allows list maintainers to see error returns
+on both old and new versions of
+.i sendmail .
+.sh 2 "V \*- Configuration Version Level"
+.pp
+To provide compatibility with old configuration files,
+the
+.b V
+line has been added to define some very basic semantics
+of the configuration file.
+These are not intended to be long term supports;
+rather, they describe compatibility features
+which will probably be removed in future releases.
+.pp
+.b N.B.:
+these version
+.i levels
+have nothing
+to do with the version
+.i number
+on the files.
+For example,
+as of this writing
+version 8 config files
+(specifically, 8.7)
+used version level 6 configurations.
+.pp
+.q Old
+configuration files are defined as version level one.
+Version level two files make the following changes:
+.np
+Host name canonification ($[ ... $])
+appends a dot if the name is recognized;
+this gives the config file a way of finding out if anything matched.
+(Actually, this just initializes the
+.q host
+map with the
+.q \-a.
+flag \*- you can reset it to anything you prefer
+by declaring the map explicitly.)
+.np
+Default host name extension is consistent throughout processing;
+version level one configurations turned off domain extension
+(that is, adding the local domain name)
+during certain points in processing.
+Version level two configurations are expected to include a trailing dot
+to indicate that the name is already canonical.
+.np
+Local names that are not aliases
+are passed through a new distinguished ruleset five;
+this can be used to append a local relay.
+This behaviour can be prevented by resolving the local name
+with an initial `@'.
+That is, something that resolves to a local mailer and a user name of
+.q vikki
+will be passed through ruleset five,
+but a user name of
+.q @vikki
+will have the `@' stripped,
+will not be passed through ruleset five,
+but will otherwise be treated the same as the prior example.
+The expectation is that this might be used to implement a policy
+where mail sent to
+.q vikki
+was handled by a central hub,
+but mail sent to
+.q vikki@localhost
+was delivered directly.
+.pp
+Version level three files
+allow # initiated comments on all lines.
+Exceptions are backslash escaped # marks
+and the $# syntax.
+.pp
+Version level four configurations
+are completely equivalent to level three
+for historical reasons.
+.pp
+Version level five configuration files
+change the default definition of
+.b $w
+to be just the first component of the hostname.
+.pp
+Version level six configuration files
+change many of the local processing options
+(such as aliasing and matching the beginning of the address for
+`|' characters)
+to be mailer flags;
+this allows fine-grained control over the special local processing.
+Level six configuration files may also use long option names.
+The
+.b ColonOkInAddr
+option (to allow colons in the local-part of addresses)
+defaults
+.b on
+for lower numbered configuration files;
+the configuration file requires some additional intelligence
+to properly handle the RFC 822 group construct.
+.pp
+The
+.b V
+line may have an optional
+.b / \c
+.i vendor
+to indicate that this configuration file uses modifications
+specific to a particular vendor\**.
+.(f
+\**And of course, vendors are encouraged to add themselves
+to the list of recognized vendors by editing the routine
+.i setvendor
+in
+.i conf.c .
+Please send e-mail to sendmail@Sendmail.ORG
+to register your vendor dialect.
+.)f
+You may use
+.q /Berkeley
+to emphasize that this configuration file
+uses the Berkeley dialect of
+.i sendmail .
+.sh 2 "K \*- Key File Declaration"
+.pp
+Special maps can be defined using the line:
+.(b
+Kmapname mapclass arguments
+.)b
+The
+.i mapname
+is the handle by which this map is referenced in the rewriting rules.
+The
+.i mapclass
+is the name of a type of map;
+these are compiled in to
+.i sendmail .
+The
+.i arguments
+are interpreted depending on the class;
+typically,
+there would be a single argument naming the file containing the map.
+.pp
+Maps are referenced using the syntax:
+.(b
+$( \fImap\fP \fIkey\fP $@ \fIarguments\fP $: \fIdefault\fP $)
+.)b
+where either or both of the
+.i arguments
+or
+.i default
+portion may be omitted.
+The
+.i "$@ arguments"
+may appear more than once.
+The indicated
+.i key
+and
+.i arguments
+are passed to the appropriate mapping function.
+If it returns a value, it replaces the input.
+If it does not return a value and the
+.i default
+is specified, the
+.i default
+replaces the input.
+Otherwise, the input is unchanged.
+.pp
+The
+.i arguments
+are passed to the map for arbitrary use.
+Most map classes can interpolate these arguments
+into their values using the syntax
+.q %\fIn\fP
+(where
+.i n
+is a digit)
+to indicate the corresponding
+.i argument .
+Argument
+.q %0
+indicates the database key.
+For example, the rule
+.(b
+.ta 1.5i
+R$\- ! $+	$: $(uucp $1 $@ $2 $: %1 @ %0 . UUCP $)
+.)b
+Looks up the UUCP name in a (user defined) UUCP map;
+if not found it turns it into
+.q \&.UUCP
+form.
+The database might contain records like:
+.(b
+decvax	%1@%0.DEC.COM
+research	%1@%0.ATT.COM
+.)b
+Note that
+.i default
+clauses never do this mapping.
+.pp
+The built in map with both name and class
+.q host
+is the host name canonicalization lookup.
+Thus,
+the syntax:
+.(b
+$(host \fIhostname\fP$)
+.)b
+is equivalent to:
+.(b
+$[\fIhostname\fP$]
+.)b
+.pp
+There are many defined classes.
+.ip dbm
+Database lookups using the ndbm(3) library.
+.i Sendmail
+must be compiled with
+.b NDBM
+defined.
+.ip btree
+Database lookups using the btree interface to the Berkeley db(3) library.
+.i Sendmail
+must be compiled with
+.b NEWDB
+defined.
+.ip hash
+Database lookups using the hash interface to the Berkeley db(3) library.
+.i Sendmail
+must be compiled with
+.b NEWDB
+defined.
+.ip nis
+NIS lookups.
+.i Sendmail
+must be compiled with
+.b NIS
+defined.
+.ip nisplus
+NIS+ lookups.
+.i Sendmail
+must be compiled with
+.b NISPLUS
+defined.
+The argument is the name of the table to use for lookups,
+and the
+.b \-k
+and
+.b \-v
+flags may be used to set the key and value columns respectively.
+.ip hesiod
+Hesiod lookups.
+.i Sendmail
+must be compiled with
+.b HESIOD
+defined.
+.ip ldapx
+LDAP X500 directory lookups.
+.i Sendmail 
+must be compiled with
+.b LDAPMAP
+defined.
+The map supports most of the standard arguments
+and most of the command line arguments of the
+.i ldapsearch
+program. 
+.ip netinfo
+NeXT NetInfo lookups.
+.i Sendmail
+must be compiled with
+.b NETINFO
+defined.
+.ip text
+Text file lookups.
+The format of the text file is defined by the
+.b \-k
+(key field number),
+.b \-v
+(value field number),
+and
+.b \-z
+(field delimiter)
+flags.
+.ip stab
+Internal symbol table lookups.
+Used internally for aliasing.
+.ip implicit
+Really should be called
+.q alias
+\(em this is used to get the default lookups
+for alias files,
+and is the default if no class is specified for alias files.
+.ip user
+Looks up users using
+.i getpwnam (3).
+The
+.b \-v
+flag can be used to specify the name of the field to return
+(although this is normally used only to check the existence
+of a user).
+.ip host
+Canonifies host domain names.
+Given a host name it calls the name server
+to find the canonical name for that host.
+.ip sequence
+The arguments on the `K' line are a list of maps;
+the resulting map searches the argument maps in order
+until it finds a match for the indicated key.
+For example, if the key definition is:
+.(b
+Kmap1 ...
+Kmap2 ...
+Kseqmap sequence map1 map2
+.)b
+then a lookup against
+.q seqmap
+first does a lookup in map1.
+If that is found, it returns immediately.
+Otherwise, the same key is used for map2.
+.ip switch
+Much like the
+.q sequence
+map except that the order of maps is determined by the service switch.
+The argument is the name of the service to be looked up;
+the values from the service switch are appended to the map name
+to create new map names.
+For example, consider the key definition:
+.(b
+Kali switch aliases
+.)b
+together with the service switch entry:
+.(b
+aliases	nis files
+.)b
+This causes a query against the map
+.q ali
+to search maps named
+.q ali.nis
+and
+.q ali.files
+in that order.
+.ip dequote
+Strip double quotes (") from a name.
+It does not strip backslashes,
+and will not strip quotes if the resulting string
+would contain unscannable syntax
+(that is, basic errors like unbalanced angle brackets;
+more sophisticated errors such as unknown hosts are not checked).
+The intent is for use when trying to accept mail from systems such as
+DECnet
+that routinely quote odd syntax such as
+.(b
+"49ers::ubell"
+.)b
+A typical usage is probably something like:
+.(b
+Kdequote dequote
+
+\&...
+
+R$\-	$: $(dequote $1 $)
+R$\- $+	$: $>3 $1 $2
+.)b
+Care must be taken to prevent unexpected results;
+for example,
+.(b
+"|someprogram < input > output"
+.)b
+will have quotes stripped,
+but the result is probably not what you had in mind.
+Fortunately these cases are rare.
+.pp
+Most of these accept as arguments the same optional flags
+and a filename
+(or a mapname for NIS;
+the filename is the root of the database path,
+so that
+.q .db
+or some other extension appropriate for the database type
+will be added to get the actual database name).
+Known flags are:
+.ip "\-o"
+Indicates that this map is optional \*- that is,
+if it cannot be opened,
+no error is produced,
+and
+.i sendmail
+will behave as if the map existed but was empty.
+.ip "\-N, \-O"
+If neither
+.b \-N
+or
+.b \-O
+are specified,
+.i sendmail
+uses an adaptive algorithm to decide whether or not to look for null bytes
+on the end of keys.
+It starts by trying both;
+if it finds any key with a null byte it never tries again without a null byte
+and vice versa.
+If
+.b \-N
+is specified it never tries without a null byte and
+if
+.b \-O
+is specified it never tries with a null byte.
+Setting one of
+these can speed matches but are never necessary.
+If both
+.b \-N
+and
+.b \-O
+are specified,
+.i sendmail
+will never try any matches at all \(em
+that is, everything will appear to fail.
+.ip "\-a\fIx\fP"
+Append the string
+.i x
+on successful matches.
+For example, the default
+.i host
+map appends a dot on successful matches.
+.ip "\-f"
+Do not fold upper to lower case before looking up the key.
+.ip "\-m"
+Match only (without replacing the value).
+If you only care about the existence of a key and not the value
+(as you might when searching the NIS map
+.q hosts.byname
+for example),
+this flag prevents the map from substituting the value.
+However,
+The \-a argument is still appended on a match,
+and the default is still taken if the match fails.
+.ip "\-k\fIkeycol\fP"
+The key column name (for NIS+) or number
+(for text lookups).
+For LDAP maps this is a filter string
+passed to printf with a %s where the string to be
+.q "mapped"
+is inserted. 
+.ip "\-v\fIvalcol\fP"
+The value column name (for NIS+) or number
+(for text lookups).
+For LDAP maps this is the name of the
+attribute to be returned.
+.ip "\-z\fIdelim\fP"
+The column delimiter (for text lookups).
+It can be a single character or one of the special strings
+.q \|\en
+or
+.q \|\et
+to indicate newline or tab respectively.
+If omitted entirely,
+the column separator is any sequence of whitespace.
+.ip "\-t"
+Normally, when a map attempts to do a lookup
+and the server fails
+(e.g.,
+.i sendmail
+couldn't contact any name server;
+this is
+.i not
+the same as an entry not being found in the map),
+the message being processed is queued for future processing.
+The
+.b \-t
+flag turns off this behaviour,
+letting the temporary failure (server down)
+act as though it were a permanent failure (entry not found).
+It is particularly useful for DNS lookups,
+where someone else's misconfigured name server can cause problems
+on your machine.
+However, care must be taken to ensure that you don't bounce mail
+that would be resolved correctly if you tried again.
+A common strategy is to forward such mail
+to another, possibly better connected, mail server.
+.ip "\-s\fIspacesub\fP
+For the dequote map only,
+the character to use to replace space characters
+after a successful dequote.
+.pp
+The
+.i dbm
+map appends the strings
+.q \&.pag
+and
+.q \&.dir
+to the given filename;
+the two
+.i db -based
+maps append
+.q \&.db .
+For example, the map specification
+.(b
+Kuucp dbm \-o \-N /usr/lib/uucpmap
+.)b
+specifies an optional map named
+.q uucp
+of class
+.q dbm ;
+it always has null bytes at the end of every string,
+and the data is located in
+/usr/lib/uucpmap.{dir,pag}.
+.pp
+The program
+.i makemap (8)
+can be used to build any of the three database-oriented maps.
+It takes the following flags:
+.ip \-f
+Do not fold upper to lower case in the map.
+.ip \-N
+Include null bytes in keys.
+.ip \-o
+Append to an existing (old) file.
+.ip \-r
+Allow replacement of existing keys;
+normally, re-inserting an existing key is an error.
+.ip \-v
+Print what is happening.
+.lp
+The
+.i sendmail
+daemon does not have to be restarted to read the new maps
+as long as you change them in place;
+file locking is used so that the maps won't be read
+while they are being updated.\**
+.(f
+\**That is, don't create new maps and then use
+.i mv (1)
+to move them into place.
+Since the maps are already open
+the new maps will never be seen.
+.)f
+.pp
+New classes can be added in the routine
+.b setupmaps
+in file
+.b conf.c .
+.sh 2 "The User Database"
+.pp
+If you have a version of
+.i sendmail
+with the user database package
+compiled in,
+the handling of sender and recipient addresses
+is modified.
+.pp
+The location of this database is controlled with the
+.b UserDatabaseSpec
+option.
+.sh 3 "Structure of the user database"
+.pp
+The database is a sorted (BTree-based) structure.
+User records are stored with the key:
+.(b
+\fIuser-name\fP\fB:\fP\fIfield-name\fP
+.)b
+The sorted database format ensures that user records are clustered together.
+Meta-information is always stored with a leading colon.
+.pp
+Field names define both the syntax and semantics of the value.
+Defined fields include:
+.nr ii 1i
+.ip maildrop
+The delivery address for this user.
+There may be multiple values of this record.
+In particular,
+mailing lists will have one
+.i maildrop
+record for each user on the list.
+.ip "mailname"
+The outgoing mailname for this user.
+For each outgoing name,
+there should be an appropriate
+.i maildrop
+record for that name to allow return mail.
+See also
+.i :default:mailname .
+.ip mailsender
+Changes any mail sent to this address to have the indicated envelope sender.
+This is intended for mailing lists,
+and will normally be the name of an appropriate -request address.
+It is very similar to the owner-\c
+.i list
+syntax in the alias file.
+.ip fullname
+The full name of the user.
+.ip office-address
+The office address for this user.
+.ip office-phone
+The office phone number for this user.
+.ip office-fax
+The office FAX number for this user.
+.ip home-address
+The home address for this user.
+.ip home-phone
+The home phone number for this user.
+.ip home-fax
+The home FAX number for this user.
+.ip project
+A (short) description of the project this person is affiliated with.
+In the University this is often just the name of their graduate advisor.
+.ip plan
+A pointer to a file from which plan information can be gathered.
+.pp
+As of this writing,
+only a few of these fields are actually being used by
+.i sendmail :
+.i maildrop
+and
+.i mailname .
+A
+.i finger
+program that uses the other fields is planned.
+.sh 3 "User database semantics"
+.pp
+When the rewriting rules submit an address to the local mailer,
+the user name is passed through the alias file.
+If no alias is found (or if the alias points back to the same address),
+the name (with
+.q :maildrop
+appended)
+is then used as a key in the user database.
+If no match occurs (or if the maildrop points at the same address),
+forwarding is tried.
+.pp
+If the first token of the user name returned by ruleset 0
+is an
+.q @
+sign, the user database lookup is skipped.
+The intent is that the user database will act as a set of defaults
+for a cluster (in our case, the Computer Science Division);
+mail sent to a specific machine should ignore these defaults.
+.pp
+When mail is sent,
+the name of the sending user is looked up in the database.
+If that user has a
+.q mailname
+record,
+the value of that record is used as their outgoing name.
+For example, I might have a record:
+.(b
+eric:mailname	Eric.Allman@CS.Berkeley.EDU
+.)b
+This would cause my outgoing mail to be sent as Eric.Allman.
+.pp
+If a
+.q maildrop
+is found for the user,
+but no corresponding
+.q mailname
+record exists,
+the record
+.q :default:mailname
+is consulted.
+If present, this is the name of a host to override the local host.
+For example, in our case we would set it to
+.q CS.Berkeley.EDU .
+The effect is that anyone known in the database
+gets their outgoing mail stamped as
+.q user@CS.Berkeley.EDU ,
+but people not listed in the database use the local hostname.
+.sh 3 "Creating the database\**"
+.(f
+\**These instructions are known to be incomplete.
+A future version of the user database is planned
+including things such as finger service \*- and good documentation.
+.)f
+.pp
+The user database is built from a text file
+using the
+.i makemap
+utility
+(in the distribution in the makemap subdirectory).
+The text file is a series of lines corresponding to userdb records;
+each line has a key and a value separated by white space.
+The key is always in the format described above \*-
+for example:
+.(b
+eric:maildrop
+.)b
+This file is normally installed in a system directory;
+for example, it might be called
+.i /etc/userdb .
+To make the database version of the map, run the program:
+.(b
+makemap btree /etc/userdb.db < /etc/userdb
+.)b
+Then create a config file that uses this.
+For example, using the V8 M4 configuration, include the
+following line in your .mc file:
+.(b
+define(\`confUSERDB_SPEC\', /etc/userdb.db)
+.)b
+.sh 1 "OTHER CONFIGURATION"
+.pp
+There are some configuration changes that can be made by
+recompiling
+.i sendmail .
+This section describes what changes can be made
+and what has to be modified to make them.
+In most cases this should be unnecessary
+unless you are porting
+.i sendmail
+to a new environment.
+.sh 2 "Parameters in src/Makefile"
+.pp
+These parameters are intended to describe the compilation environment,
+not site policy,
+and should normally be defined in src/Makefile.
+.ip NDBM
+If set,
+the new version of the DBM library
+that allows multiple databases will be used.
+If neither NDBM nor NEWDB are set,
+a much less efficient method of alias lookup is used.
+.ip NEWDB
+If set, use the new database package from Berkeley (from 4.4BSD).
+This package is substantially faster than DBM or NDBM.
+If NEWDB and NDBM are both set,
+.i sendmail
+will read DBM files,
+but will create and use NEWDB files.
+.ip NIS
+Include support for NIS.
+If set together with
+.i both
+NEWDB and NDBM,
+.i sendmail
+will create both DBM and NEWDB files if and only if
+an alias file includes the substring
+.q /yp/
+in the name.
+This is intended for compatibility with Sun Microsystems'
+.i mkalias
+program used on YP masters.
+.ip NISPLUS
+Compile in support for NIS+.
+.ip NETINFO
+Compile in support for NetInfo (NeXT stations).
+.ip LDAPMAP
+Compile in support for LDAP X500 queries.
+Requires libldap and liblber
+from the Umich LDAP 3.2 or 3.3 release. 
+.ip HESIOD
+Compile in support for Hesiod.
+.ip _PATH_SENDMAILCF
+The pathname of the sendmail.cf file.
+.ip _PATH_SENDMAILPID
+The pathname of the sendmail.pid file.
+.pp
+There are also several compilation flags to indicate the environment
+such as
+.q _AIX3
+and
+.q _SCO_unix_ .
+See the READ_ME
+file for the latest scoop on these flags.
+.sh 2 "Parameters in src/conf.h"
+.pp
+Parameters and compilation options
+are defined in conf.h.
+Most of these need not normally be tweaked;
+common parameters are all in sendmail.cf.
+However, the sizes of certain primitive vectors, etc.,
+are included in this file.
+The numbers following the parameters
+are their default value.
+.pp
+This document is not the best source of information
+for compilation flags in conf.h \(em
+see src/READ_ME or src/conf.h itself.
+.nr ii 1.2i
+.ip "MAXLINE [2048]"
+The maximum line length of any input line.
+If message lines exceed this length
+they will still be processed correctly;
+however, header lines,
+configuration file lines,
+alias lines,
+etc.,
+must fit within this limit.
+.ip "MAXNAME [256]"
+The maximum length of any name,
+such as a host or a user name.
+.ip "MAXPV [40]"
+The maximum number of parameters to any mailer.
+This limits the number of recipients that may be passed in one transaction.
+It can be set to any arbitrary number above about 10,
+since
+.i sendmail
+will break up a delivery into smaller batches as needed.
+A higher number may reduce load on your system, however.
+.ip "MAXATOM [100]"
+The maximum number of atoms
+(tokens)
+in a single address.
+For example,
+the address
+.q "eric@CS.Berkeley.EDU"
+is seven atoms.
+.ip "MAXMAILERS [25]"
+The maximum number of mailers that may be defined
+in the configuration file.
+.ip "MAXRWSETS [200]"
+The maximum number of rewriting sets
+that may be defined.
+The first half of these are reserved for numeric specification
+(e.g., ``S92''),
+while the upper half are reserved for auto-numbering
+(e.g., ``Sfoo'').
+Thus, with a value of 200 an attempt to use ``S99'' will succeed,
+but ``S100'' will fail.
+.ip "MAXPRIORITIES [25]"
+The maximum number of values for the
+.q Precedence:
+field that may be defined
+(using the
+.b P
+line in sendmail.cf).
+.ip "MAXUSERENVIRON [100]"
+The maximum number of items in the user environment
+that will be passed to subordinate mailers.
+.ip "MAXMXHOSTS [100]"
+The maximum number of MX records we will accept for any single host.
+.ip "MAXALIASDB [12]"
+The maximum number of alias databases that can be open at any time.
+Note that there may also be an open file limit.
+.ip "MAXMAPSTACK [12]"
+The maximum number of maps that may be "stacked" in a
+.b sequence
+class map.
+.ip "MAXMIMEARGS [20]"
+The maximum number of arguments in a MIME Content-Type: header;
+additional arguments will be ignored.
+.ip "MAXMIMENESTING [20]"
+The maximum depth to which MIME messages may be nested
+(that is, nested Message or Multipart documents;
+this does not limit the number of components in a single Multipart document).
+.lp
+A number of other compilation options exist.
+These specify whether or not specific code should be compiled in.
+Ones marked with \(dg
+are 0/1 valued.
+.nr ii 1.2i
+.ip NETINET\(dg
+If set,
+support for Internet protocol networking is compiled in.
+Previous versions of
+.i sendmail
+referred to this as
+.sm DAEMON ;
+this old usage is now incorrect.
+Defaults on;
+turn it off in the Makefile
+if your system doesn't support the Internet protocols.
+.ip NETISO\(dg
+If set,
+support for ISO protocol networking is compiled in
+(it may be appropriate to #define this in the Makefile instead of conf.h).
+.ip LOG
+If set,
+the
+.i syslog
+routine in use at some sites is used.
+This makes an informational log record
+for each message processed,
+and makes a higher priority log record
+for internal system errors.
+.b "STRONGLY RECOMMENDED"
+\(em if you want no logging, turn it off in the configuration file.
+.ip MATCHGECOS\(dg
+Compile in the code to do ``fuzzy matching'' on the GECOS field
+in /etc/passwd.
+This also requires that the
+.b MatchGECOS
+option be turned on.
+.ip NAMED_BIND\(dg
+Compile in code to use the
+Berkeley Internet Name Domain (BIND) server
+to resolve TCP/IP host names.
+.ip NOTUNIX
+If you are using a non-UNIX mail format,
+you can set this flag to turn off special processing
+of UNIX-style
+.q "From "
+lines.
+.ip QUEUE\(dg
+This flag should be set to compile in the queueing code.
+If this is not set,
+mailers must accept the mail immediately
+or it will be returned to the sender.
+.ip SMTP\(dg
+If set,
+the code to handle user and server SMTP will be compiled in.
+This is only necessary if your machine has some mailer
+that speaks SMTP
+(this means most machines everywhere).
+.ip USERDB\(dg
+Include the
+.b experimental
+Berkeley user information database package.
+This adds a new level of local name expansion
+between aliasing and forwarding.
+It also uses the NEWDB package.
+This may change in future releases.
+.lp
+The following options are normally turned on
+in per-operating-system clauses in conf.h.
+.ip IDENTPROTO\(dg
+Compile in the IDENT protocol as defined in RFC 1413.
+This defaults on for all systems except Ultrix,
+which apparently has the interesting
+.q feature
+that when it receives a
+.q "host unreachable"
+message it closes all open connections to that host.
+Since some firewall gateways send this error code
+when you access an unauthorized port (such as 113, used by IDENT),
+Ultrix cannot receive email from such hosts.
+.ip SYSTEM5
+Set all of the compilation parameters appropriate for System V.
+.ip HASFLOCK\(dg
+Use Berkeley-style
+.b flock
+instead of System V
+.b lockf
+to do file locking.
+Due to the highly unusual semantics of locks
+across forks in
+.b lockf ,
+this should always be used if at all possible.
+.ip HASINITGROUPS
+Set this if your system has the
+.i initgroups()
+call
+(if you have multiple group support).
+This is the default if SYSTEM5 is
+.i not
+defined or if you are on HPUX.
+.ip HASUNAME
+Set this if you have the
+.i uname (2)
+system call (or corresponding library routine).
+Set by default if
+SYSTEM5
+is set.
+.ip HASGETDTABLESIZE
+Set this if you have the
+.i getdtablesize (2)
+system call.
+.ip HASWAITPID
+Set this if you have the
+.i haswaitpid (2)
+system call.
+.ip SFS_TYPE
+The mechanism that can be used to get file system capacity information.
+The values can be one of
+SFS_USTAT (use the ustat(2) syscall),
+SFS_4ARGS (use the four argument statfs(2) syscall),
+SFS_VFS (use the two argument statfs(2) syscall including <sys/vfs.h>),
+SFS_MOUNT (use the two argument statfs(2) syscall including <sys/mount.h>),
+SFS_STATFS (use the two argument statfs(2) syscall including <sys/statfs.h>),
+SFS_STATVFS (use the two argument statfs(2) syscall including <sys/statvfs.h>),
+or
+SFS_NONE (no way to get this information).
+.ip LA_TYPE
+The load average type.
+Details are described below.
+.lp
+The are several built-in ways of computing the load average.
+.i Sendmail
+tries to auto-configure them based on imperfect guesses;
+you can select one using the
+.i cc
+option
+.b \-DLA_TYPE= \c
+.i type ,
+where
+.i type
+is:
+.ip LA_INT
+The kernel stores the load average in the kernel as an array of long integers.
+The actual values are scaled by a factor FSCALE
+(default 256).
+.ip LA_SHORT
+The kernel stores the load average in the kernel as an array of short integers.
+The actual values are scaled by a factor FSCALE
+(default 256).
+.ip LA_FLOAT
+The kernel stores the load average in the kernel as an array of
+double precision floats.
+.ip LA_MACH
+Use MACH-style load averages.
+.ip LA_SUBR
+Call the
+.i getloadavg
+routine to get the load average as an array of doubles.
+.ip LA_ZERO
+Always return zero as the load average.
+This is the fallback case.
+.lp
+If type
+.sm LA_INT ,
+.sm LA_SHORT ,
+or
+.sm LA_FLOAT
+is specified,
+you may also need to specify
+.sm _PATH_UNIX
+(the path to your system binary)
+and
+.sm LA_AVENRUN
+(the name of the variable containing the load average in the kernel;
+usually
+.q _avenrun
+or
+.q avenrun ).
+.sh 2 "Configuration in src/conf.c"
+.pp
+The following changes can be made in conf.c.
+.sh 3 "Built-in Header Semantics"
+.pp
+Not all header semantics are defined in the configuration file.
+Header lines that should only be included by certain mailers
+(as well as other more obscure semantics)
+must be specified in the
+.i HdrInfo
+table in
+.i conf.c .
+This table contains the header name
+(which should be in all lower case)
+and a set of header control flags (described below),
+The flags are:
+.ip H_ACHECK
+Normally when the check is made to see if a header line is compatible
+with a mailer,
+.i sendmail
+will not delete an existing line.
+If this flag is set,
+.i sendmail
+will delete
+even existing header lines.
+That is,
+if this bit is set and the mailer does not have flag bits set
+that intersect with the required mailer flags
+in the header definition in
+sendmail.cf,
+the header line is
+.i always
+deleted.
+.ip H_EOH
+If this header field is set,
+treat it like a blank line,
+i.e.,
+it will signal the end of the header
+and the beginning of the message text.
+.ip H_FORCE
+Add this header entry
+even if one existed in the message before.
+If a header entry does not have this bit set,
+.i sendmail
+will not add another header line if a header line
+of this name already existed.
+This would normally be used to stamp the message
+by everyone who handled it.
+.ip H_TRACE
+If set,
+this is a timestamp
+(trace)
+field.
+If the number of trace fields in a message
+exceeds a preset amount
+the message is returned
+on the assumption that it has an aliasing loop.
+.ip H_RCPT
+If set,
+this field contains recipient addresses.
+This is used by the
+.b \-t
+flag to determine who to send to
+when it is collecting recipients from the message.
+.ip H_FROM
+This flag indicates that this field
+specifies a sender.
+The order of these fields in the
+.i HdrInfo
+table specifies
+.i sendmail 's
+preference
+for which field to return error messages to.
+.ip H_ERRORSTO
+Addresses in this header should receive error messages.
+.ip H_CTE
+This header is a Content-Transfer-Encoding header.
+.ip H_CTYPE
+This header is a Content-Type header.
+.ip H_STRIPVAL
+Strip the value from the header (for Bcc:).
+.nr ii 5n
+.lp
+Let's look at a sample
+.i HdrInfo
+specification:
+.(b
+.ta 4n +\w'"content-transfer-encoding",  'u
+struct hdrinfo	HdrInfo[] =
+\&{
+	     /* originator fields, most to least significant  */
+	"resent-sender",	H_FROM,
+	"resent-from",	H_FROM,
+	"sender",	H_FROM,
+	"from",	H_FROM,
+	"full-name",	H_ACHECK,
+	"errors-to",	H_FROM\^|\^H_ERRORSTO,
+	     /* destination fields */
+	"to",	H_RCPT,
+	"resent-to",	H_RCPT,
+	"cc",	H_RCPT,
+	"bcc",	H_RCPT\^|\^H_STRIPVAL,
+	     /* message identification and control */
+	"message",	H_EOH,
+	"text",	H_EOH,
+	     /* trace fields */
+	"received",	H_TRACE\^|\^H_FORCE,
+	     /* miscellaneous fields */
+	"content-transfer-encoding",	H_CTE,
+	"content-type",	H_CTYPE,
+
+	NULL,	0,
+};
+.)b
+This structure indicates that the
+.q To: ,
+.q Resent-To: ,
+and
+.q Cc:
+fields
+all specify recipient addresses.
+Any
+.q Full-Name:
+field will be deleted unless the required mailer flag
+(indicated in the configuration file)
+is specified.
+The
+.q Message:
+and
+.q Text:
+fields will terminate the header;
+these are used by random dissenters around the network world.
+The
+.q Received:
+field will always be added,
+and can be used to trace messages.
+.pp
+There are a number of important points here.
+First,
+header fields are not added automatically just because they are in the
+.i HdrInfo
+structure;
+they must be specified in the configuration file
+in order to be added to the message.
+Any header fields mentioned in the configuration file but not
+mentioned in the
+.i HdrInfo
+structure have default processing performed;
+that is,
+they are added unless they were in the message already.
+Second,
+the
+.i HdrInfo
+structure only specifies cliched processing;
+certain headers are processed specially by ad hoc code
+regardless of the status specified in
+.i HdrInfo .
+For example,
+the
+.q Sender:
+and
+.q From:
+fields are always scanned on ARPANET mail
+to determine the sender\**;
+.(f
+\**Actually, this is no longer true in SMTP;
+this information is contained in the envelope.
+The older ARPANET protocols did not completely distinguish
+envelope from header.
+.)f
+this is used to perform the
+.q "return to sender"
+function.
+The
+.q "From:"
+and
+.q "Full-Name:"
+fields are used to determine the full name of the sender
+if possible;
+this is stored in the macro
+.b $x
+and used in a number of ways.
+.sh 3 "Restricting Use of Email"
+.pp
+If it is necessary to restrict mail through a relay,
+the
+.i checkcompat
+routine can be modified.
+This routine is called for every recipient address.
+It returns an exit status
+indicating the status of the message.
+The status
+.sm EX_OK
+accepts the address,
+.sm EX_TEMPFAIL
+queues the message for a later try,
+and other values
+(commonly
+.sm EX_UNAVAILABLE )
+reject the message.
+It is up to
+.i checkcompat
+to print an error message
+(using
+.i usrerr )
+if the message is rejected.
+For example,
+.i checkcompat
+could read:
+.(b
+.re
+.sz -1
+.ta 4n +4n +4n +4n +4n +4n +4n
+int
+checkcompat(to, e)
+	register ADDRESS *to;
+	register ENVELOPE *e;
+\&{
+	register STAB *s;
+
+	s = stab("private", ST_MAILER, ST_FIND);
+	if (s != NULL && e\->e_from.q_mailer != LocalMailer &&
+	    to->q_mailer == s->s_mailer)
+	{
+		usrerr("No private net mail allowed through this machine");
+		return (EX_UNAVAILABLE);
+	}
+	if (MsgSize > 50000 && bitnset(M_LOCALMAILER, to\->q_mailer))
+	{
+		usrerr("Message too large for non-local delivery");
+		e\->e_flags |= EF_NORETURN;
+		return (EX_UNAVAILABLE);
+	}
+	return (EX_OK);
+}
+.sz
+.)b
+This would reject messages greater than 50000 bytes
+unless they were local.
+The
+.i EF_NORETURN
+flag can be set in
+.i e\(->e_flags
+to suppress the return of the actual body
+of the message in the error return.
+The actual use of this routine is highly dependent on the
+implementation,
+and use should be limited.
+.sh 3 "Load Average Computation"
+.pp
+The routine
+.i getla
+should return an approximation of the current system load average
+as an integer.
+There are several versions included on compilation flags
+as described above.
+.sh 3 "New Database Map Classes"
+.pp
+New key maps can be added by creating a class initialization function
+and a lookup function.
+These are then added to the routine
+.i setupmaps.
+.pp
+The initialization function is called as
+.(b
+\fIxxx\fP_map_init(MAP *map, char *args)
+.)b
+The
+.i map
+is an internal data structure.
+The
+.i args
+is a pointer to the portion of the configuration file line
+following the map class name;
+flags and filenames can be extracted from this line.
+The initialization function must return
+.sm TRUE
+if it successfully opened the map,
+.sm FALSE
+otherwise.
+.pp
+The lookup function is called as
+.(b
+\fIxxx\fP_map_lookup(MAP *map, char buf[], char **av, int *statp)
+.)b
+The
+.i map
+defines the map internally.
+The
+.i buf
+has the input key.
+This may be (and often is) used destructively.
+The
+.i av
+is a list of arguments passed in from the rewrite line.
+The lookup function should return a pointer to the new value.
+IF the map lookup fails,
+.i *statp
+should be set to an exit status code;
+in particular, it should be set to
+.sm EX_TEMPFAIL
+if recovery is to be attempted by the higher level code.
+.sh 3 "Queueing Function"
+.pp
+The routine
+.i shouldqueue
+is called to decide if a message should be queued
+or processed immediately.
+Typically this compares the message priority to the current load average.
+The default definition is:
+.(b
+bool
+shouldqueue(pri, ctime)
+	long pri;
+	time_t ctime;
+{
+	if (CurrentLA < QueueLA)
+		return (FALSE);
+	return (pri > (QueueFactor / (CurrentLA \- QueueLA + 1)));
+}
+.)b
+If the current load average
+(global variable
+.i CurrentLA ,
+which is set before this function is called)
+is less than the low threshold load average
+(option
+.b x ,
+variable
+.i QueueLA ),
+.i shouldqueue
+returns
+.sm FALSE
+immediately
+(that is, it should
+.i not
+queue).
+If the current load average exceeds the high threshold load average
+(option
+.b X ,
+variable
+.i RefuseLA ),
+.i shouldqueue
+returns
+.sm TRUE
+immediately.
+Otherwise, it computes the function based on the message priority,
+the queue factor
+(option
+.b q ,
+global variable
+.i QueueFactor ),
+and the current and threshold load averages.
+.pp
+An implementation wishing to take the actual age of the message into account
+can also use the
+.i ctime
+parameter,
+which is the time that the message was first submitted to
+.i sendmail .
+Note that the
+.i pri
+parameter is already weighted
+by the number of times the message has been tried
+(although this tends to lower the priority of the message with time);
+the expectation is that the
+.i ctime
+would be used as an
+.q "escape clause"
+to ensure that messages are eventually processed.
+.sh 3 "Refusing Incoming SMTP Connections"
+.pp
+The function
+.i refuseconnections
+returns
+.sm TRUE
+if incoming SMTP connections should be refused.
+The current implementation is based exclusively on the current load average
+and the refuse load average option
+(option
+.b X ,
+global variable
+.i RefuseLA ):
+.(b
+bool
+refuseconnections()
+{
+	return (CurrentLA >= RefuseLA);
+}
+.)b
+A more clever implementation
+could look at more system resources.
+.sh 3 "Load Average Computation"
+.pp
+The routine
+.i getla
+returns the current load average (as a rounded integer).
+The distribution includes several possible implementations.
+If you are porting to a new environment
+you may need to add some new tweaks.\**
+.(f
+\**If you do, please send updates to
+sendmail@Sendmail.ORG.
+.)f
+.sh 2 "Configuration in src/daemon.c"
+.pp
+The file
+.i src/daemon.c
+contains a number of routines that are dependent
+on the local networking environment.
+The version supplied assumes you have BSD style sockets.
+.pp
+In previous releases,
+we recommended that you modify the routine
+.i maphostname
+if you wanted to generalize
+.b $[
+\&...\&
+.b $]
+lookups.
+We now recommend that you create a new keyed map instead.
+.sh 1 "CHANGES IN VERSION 8"
+.pp
+The following summarizes changes
+since the last commonly available version of
+.i sendmail
+(5.67).
+For a detailed list,
+consult the file
+RELEASE_NOTES
+in the root directory of the
+.i sendmail
+distribution.
+.sh 2 "Connection Caching"
+.pp
+Instead of closing SMTP connections immediately,
+those connections are cached for possible future use.
+The advent of MX records made this effective for mailing lists;
+in addition,
+substantial performance improvements can be expected for queue processing.
+.sh 2 "MX Piggybacking"
+.pp
+If two hosts with different names in a single message
+happen to have the same set of MX hosts,
+they can be sent in the same transaction.
+Version 8 notices this and tries to batch the messages.
+.sh 2 "RFC 1123 Compliance"
+.pp
+A number of changes have been made to make
+.i sendmail
+.q "conditionally compliant"
+(that is,
+.i sendmail
+satisfies all of the
+.q MUST
+clauses and most but not all of the
+.q SHOULD
+clauses in RFC 1123).
+.pp
+The major areas of change are (numbers are RFC 1123 section numbers):
+.nr ii \w'5.3.1.1\0\0'u
+.ip 5.2.7
+Response to RCPT command is fast.
+.ip 5.2.8
+Numeric IP addresses are logged in Received: lines.
+.ip 5.2.17
+Self domain literal is properly handled.
+.ip 5.3.2
+Better control over individual timeouts.
+.ip 5.3.3
+Error messages are sent as
+.q From:<> .
+.ip 5.3.3
+Error messages are never sent to
+.q <> .
+.ip 5.3.3
+Route-addrs are pruned.
+.lp
+The areas in which
+.i sendmail
+is not
+.q "unconditionally compliant"
+are:
+.ip 5.2.6
+.i Sendmail
+does do header munging.
+.ip 5.2.10
+.i Sendmail
+doesn't always use the exact SMTP message text
+as listed in RFC 821.
+.ip 5.3.1.1
+.i Sendmail
+doesn't guarantee only one connect for each host in queue runs.
+.ip 5.3.1.1
+.i Sendmail
+doesn't always provide adequate concurrency limits.
+.sh 2 "Extended SMTP Support"
+.pp
+Version 8 includes both sending and receiving support for Extended
+SMTP support as defined by RFC 1651 (basic) and RFC 1653 (SIZE);
+and limited support for RFC 1652 (BODY).
+.sh 2 "Eight-Bit Clean"
+.pp
+Previous versions of
+.i sendmail
+used the 0200 bit for quoting.
+This version avoids that use.
+However, for compatibility with RFC 822,
+you can set option `7' to get seven bit stripping.
+.pp
+Individual mailers can still produce seven bit output using the
+`7' mailer flag.
+.sh 2 "User Database"
+.pp
+The user database is an as-yet experimental attempt
+to provide unified large-site name support.
+We are installing it at Berkeley;
+future versions may show significant modifications.
+.sh 2 "Improved BIND Support"
+.pp
+The BIND support,
+particularly for MX records,
+had a number of annoying
+.q features
+which have been removed in this release.
+In particular,
+these more tightly bind (pun intended) the name server to
+.i sendmail ,
+so that the name server resolution rules are incorporated directly into
+.b sendmail .
+.sh 2 "Keyed Files"
+.pp
+Generalized keyed files is an idea taken directly from
+.sm IDA
+.i sendmail
+(albeit with a completely different implementation).
+They can be useful on large sites.
+.pp
+Version 8 also understands YP.
+.sh 2 "Multi-Word Classes"
+.pp
+Classes can now be multiple words.
+For example,
+.(b
+CShofmann.CS.Berkeley.EDU
+.)b
+allows you to match the entire string
+.q hofmann.CS.Berkeley.EDU
+using the single construct
+.q $=S .
+.sh 2 "Deferred Macro Expansion"
+.pp
+The
+.b $& \c
+.i x
+construct has been adopted from
+.sm IDA .
+.sh 2 "IDENT Protocol Support"
+.pp
+The IDENT protocol as defined in RFC 1413 is supported.
+.sh 2 "Parsing Bug Fixes"
+.pp
+A number of small bugs having to do with things like
+backslash-escaped quotes inside of comments
+have been fixed.
+.sh 2 "Separate Envelope/Header Processing"
+.pp
+Since the From: line is passed in separately from the envelope sender,
+these have both been made visible;
+the
+.b $g
+macro is set to the envelope sender during processing
+of mailer argument vectors
+and the header sender during processing of headers.
+.pp
+It is also possible to specify separate per-mailer
+envelope and header processing.
+The
+.b S enderRWSet
+and
+.b R ecipientRWset
+arguments for mailers
+can be specified as
+.i envelope/header
+to give different rewritings for envelope versus header addresses.
+.sh 2 "Owner-List Propagates to Envelope"
+.pp
+When an alias has an associated owner\-list name,
+that alias is used to change the envelope sender address.
+This will cause downstream errors to be returned to that owner.
+.sh 2 "Dynamic Header Allocation"
+.pp
+The fixed size limit on header lines has been eliminated.
+.sh 2 "New Command Line Flags"
+.pp
+The
+.b \-B
+flag has been added to pass in body type information.
+.pp
+The
+.b \-p
+flag has been added
+to pass in protocol information.
+.pp
+The
+.b \-X
+flag has been added
+to allow logging of all protocol in and out of
+.i sendmail
+for debugging.
+.pp
+The
+.b \-O
+flag implies setting long-form options.
+.sh 2 "Enhanced Command Line Flags"
+.pp
+The
+.b \-q
+flag can limit limit a queue run to specific recipients, senders, or queue ids
+using
+.b \-qR\c
+.i substring ,
+.b \-qS\c
+.i substring ,
+or
+.b \-qI\c
+.i substring
+respectively.
+.sh 2 "New and Old Configuration Line Types"
+.pp
+The
+.b K
+line has been added to declare database maps.
+.pp
+The
+.b V
+line has been added to declare the configuration version level.
+.pp
+The
+.b M
+line has a
+.q D=
+field that lets you change into a temporary directory while that mailer
+is running.
+It also has a
+.q U=
+field to allow you to set the user and group id to be used
+when running the mailer.
+.sh 2 "New Options"
+.pp
+Several new options have been added,
+many to support new features,
+others to allow tuning that was previously available
+only by recompiling.
+They are described in detail in Section 5.6.
+Briefly,
+.nr ii 0.5i
+.ip b
+Insist on a minimum number of disk blocks.
+.ip C
+Set checkpoint interval.
+.ip E
+Default error message.
+.ip G
+Enable GECOS matching.
+.ip h
+Maximum hop count.
+.ip j
+Send errors in MIME-encapsulated format.
+.ip J
+Forward file path.
+.ip k
+Connection cache size
+.ip K
+Connection cache lifetime.
+.ip l
+Enable Errors-To: header.
+These headers violate RFC 1123;
+this option is included to provide back compatibility
+with old versions of
+.i sendmail .
+.ip O
+Set incoming SMTP daemon options, such as an alternate SMTP port.
+.ip p
+Privacy options.
+.ip R
+Don't prune route-addrs.
+.ip U
+User database spec.
+.ip V
+Fallback
+.q MX
+host.
+.ip w
+.q "Best MX"
+handling technique.
+.ip 7
+Do not run eight bit clean.
+.ip 8
+Eight bit data handling mode.
+.sh 2 "Extended Options"
+.pp
+The
+.b r
+(read timeout),
+.b I
+(use BIND),
+and
+.b T
+(queue timeout)
+options have been extended to pass in more information.
+.sh 2 "New Mailer Flags"
+.pp
+Several new mailer flags have been added.
+.ip a
+Try to use ESMTP when creating a connection.
+If this is not set,
+.i sendmail
+will still try if the other end hints that it knows about ESMTP
+in its greeting message;
+this flag says to try even if it doesn't hint.
+If the EHLO (extended hello)
+command fails,
+.i sendmail
+falls back to old SMTP.
+.ip A
+Try the user part of addresses for this mailer as aliases.
+.ip b
+Ensure that there is a blank line at the end of all messages.
+.ip c
+Strip all comments from addresses;
+this should only be used as a last resort
+when dealing with cranky mailers.
+.ip g
+Never use the null sender as the envelope sender,
+even when running SMTP.
+Although this violates RFC 1123,
+it may be necessary when you must deal with some obnoxious old hosts.
+.ip k
+Turn off the loopback check in the HELO protocol;
+doing this may cause mailer loops.
+.ip o
+Always run the mailer as the recipient of the message.
+.ip w
+This user should have a passwd file entry.
+.ip 5
+Try ruleset 5 if no local aliases.
+.ip 7
+Strip all output to 7 bits.
+.ip :
+Check for :include: files.
+.ip |
+Check for |program addresses.
+.ip /
+Check for /file addresses.
+.ip @
+Check this user against the user database.
+.sh 2 "Long Option Names"
+.pp
+All options can be specified using long names,
+and some new options can only be specified with long names.
+.sh 2 "New Pre-Defined Macros"
+.pp
+The following macros are pre-defined:
+.ip $k
+The UUCP node name,
+nominally from
+.i uname (2)
+call.
+.ip $m
+The domain part of our full hostname.
+.ip $_
+The RFC 1413-provided sender address.
+.sh 2 "New LHS Token"
+.pp
+Version 8 allows
+.b $@
+on the Left Hand Side of an
+.q R
+line to match zero tokens.
+This is intended to be used to match the null input.
+.sh 2 "Bigger Defaults"
+.pp
+Version 8 allows up to 100 rulesets instead of 30.
+It is recommended that rulesets 0\-9 be reserved for
+.i sendmail 's
+dedicated use in future releases.
+.pp
+The total number of MX records that can be used has been raised to 20.
+.pp
+The number of queued messages that can be handled at one time
+has been raised from 600 to 1000.
+.sh 2 "Different Default Tuning Parameters"
+.pp
+Version 8 has changed the default parameters
+for tuning queue costs
+to make the number of recipients more important
+than the size of the message (for small messages).
+This is reasonable if you are connected with reasonably fast links.
+.sh 2 "Auto-Quoting in Addresses"
+.pp
+Previously, the
+.q "Full Name <email address>"
+syntax would generate incorrect protocol output
+if
+.q "Full Name"
+had special characters such as dot.
+This version puts quotes around such names.
+.sh 2 "Symbolic Names On Error Mailer"
+.pp
+Several names have been built in to the $@ portion of the $#error
+mailer.
+.sh 2 "SMTP VRFY Doesn't Expand"
+.pp
+Previous versions of
+.i sendmail
+treated VRFY and EXPN the same.
+In this version,
+VRFY doesn't expand aliases or follow .forward files.
+EXPN still does.
+.pp
+As an optimization, if you run with your default delivery mode being
+queue-only or deliver-in-background,
+the RCPT command will also not chase aliases and .forward files.
+It will chase them when it processes the queue.
+.sh 2 "[IPC] Mailers Allow Multiple Hosts"
+.pp
+When an address resolves to a mailer that has
+.q [IPC]
+as its
+.q Path ,
+the $@ part (host name)
+can be a colon-separated list of hosts instead of a single hostname.
+This asks
+.i sendmail
+to search the list for the first entry that is available
+exactly as though it were an MX record.
+The intent is to route internal traffic through internal networks
+without publishing an MX record to the net.
+MX expansion is still done on the individual items.
+.sh 2 "Aliases Extended"
+.pp
+The implementation has been merged with maps.
+Among other things,
+this supports NIS-based aliases.
+.sh 2 "Portability and Security Enhancements"
+.pp
+A number of internal changes have been made to enhance portability.
+.pp
+Several fixes have been made to increase the paranoia factor.
+.sh 2 "Miscellaneous Changes"
+.pp
+.i Sendmail
+writes a
+.i /etc/sendmail.pid
+file with the current process id of the SMTP daemon.
+.pp
+Two people using the same program in their .forward file
+are considered different
+so that duplicate elimination doesn't delete one of them.
+.pp
+The
+.i mailstats
+program prints mailer names
+and gets the location of the
+.i sendmail.st
+file from
+.i /etc/sendmail.cf .
+.pp
+Many minor bugs have been fixed, such as handling of backslashes
+inside of quotes.
+.pp
+A hook (ruleset 5) has been added
+to allow rewriting of local addresses after aliasing.
+.sh 1 "ACKNOWLEDGEMENTS"
+.pp
+I've worked on
+.i sendmail
+for many years,
+and many employers have been remarkably patient
+about letting me work on a large project
+that was not part of my official job.
+This includes time on the INGRES Project at
+the University of California at Berkeley,
+at Britton Lee,
+and again on the Mammoth and Titan Projects at Berkeley.
+.pp
+Much of the second wave of improvements
+should be credited to Bryan Costales of ICSI.
+As he passed me drafts of his book on
+.i sendmail
+I was inspired to start working on things again.
+Bryan was also available to bounce ideas off of.
+.pp
+Many, many people contributed chunks of code and ideas to
+.i sendmail .
+It has proven to be a group network effort.
+Version 8 in particular was a group project.
+The following people made notable contributions:
+.(l
+John Beck, Hewlett-Packard
+Keith Bostic, CSRG, University of California, Berkeley
+Andrew Cheng, Sun Microsystems
+Michael J. Corrigan, University of California, San Diego
+Bryan Costales, International Computer Science Institute
+Pa\*:r (Pell) Emanuelsson
+Craig Everhart, Transarc Corporation
+Tom Ivar Helbekkmo, Norwegian School of Economics
+Allan E. Johannesen, WPI
+Jonathan Kamens, OpenVision Technologies, Inc.
+Takahiro Kanbe, Fuji Xerox Information Systems Co., Ltd.
+Brian Kantor, University of California, San Diego
+Murray S. Kucherawy, HookUp Communication Corp.
+Bruce Lilly, Sony U.S.
+Karl London
+Motonori Nakamura, Ritsumeikan University & Kyoto University
+John Gardiner Myers, Carnegie Mellon University
+Neil Rickert, Northern Illinois University
+Eric Schnoebelen, Convex Computer Corp.
+Eric Wassenaar, National Institute for Nuclear and High Energy Physics, Amsterdam
+Christophe Wolfhugel, Pasteur Institute & Herve Schauer Consultants (Paris)
+.)l
+I apologize for anyone I have omitted, misspelled, misattributed, or
+otherwise missed.
+At this point, I suspect that at least a hundred people
+have contributed code,
+and many more have contributed ideas, comments, and encouragement.
+I've tried to list them in the RELEASE_NOTES in the distribution directory.
+I appreciate their contribution as well.
+.pp
+Special thanks are reserved for Michael Corrigan and Christophe Wolfhugel,
+who besides being wonderful guinea pigs and contributors
+have also consented to be added to the ``sendmail@Sendmail.ORG'' list
+and, by answering the bulk of the questions sent to that list,
+have freed me up to do other work.
+.++ A
+.+c "COMMAND LINE FLAGS"
+.ba 0
+.nr ii 1i
+.pp
+Arguments must be presented with flags before addresses.
+The flags are:
+.ip \-b\fIx\fP
+Set operation mode to
+.i x .
+Operation modes are:
+.(b
+.ta 4n
+m	Deliver mail (default)
+s	Speak SMTP on input side
+a\(dg	``Arpanet'' mode (get envelope sender information from header)
+d	Run as a daemon in background
+D	Run as a daemon in foreground
+t	Run in test mode
+v	Just verify addresses, don't collect or deliver
+i	Initialize the alias database
+p	Print the mail queue
+.)b
+.(f
+\(dgDeprecated.
+.)f
+.ip \-B\fItype\fP
+Indicate body type.
+.ip \-C\fIfile\fP
+Use a different configuration file.
+.i Sendmail
+runs as the invoking user (rather than root)
+when this flag is specified.
+.ip \-d\fIlevel\fP
+Set debugging level.
+.ip "\-f\ \fIaddr\fP"
+The sender's machine address is
+.i addr .
+.ip \-F\fIname\fP
+Sets the full name of this user to
+.i name .
+.ip "\-h\ \fIcnt\fP"
+Sets the
+.q "hop count"
+to
+.i cnt .
+This represents the number of times this message has been processed
+by
+.i sendmail
+(to the extent that it is supported by the underlying networks).
+.i Cnt
+is incremented during processing,
+and if it reaches
+MAXHOP
+(currently 30)
+.i sendmail
+throws away the message with an error.
+.ip \-n
+Don't do aliasing or forwarding.
+.ip "\-N \fInotifications\fP"
+Tag all addresses being sent as wanting the indicated
+.i notifications ,
+which consists of the word
+.q NEVER
+or a comma-separated list of
+.q SUCCESS ,
+.q FAILURE ,
+and
+.q DELAY
+for successful delivery,
+failure,
+and a message that is stuck in a queue somewhere.
+The default is
+.q FAILURE,DELAY .
+.ip "\-r\ \fIaddr\fP"
+An obsolete form of
+.b \-f .
+.ip \-o\fIx\|value\fP
+Set option
+.i x
+to the specified
+.i value .
+These options are described in Section 5.6.
+.ip \-O\fIoption\fP\fB=\fP\fIvalue\fP
+Set
+.i option
+to the specified
+.i value
+(for long form option names).
+These options are described in Section 5.6.
+.ip \-M\fIx\|value
+Set macro
+.i x
+to the specified
+.i value .
+.ip \-p\fIprotocol\fP
+Set the sending protocol.
+Programs are encouraged to set this.
+The protocol field can be in the form
+.i protocol \c
+.b : \c
+.i host
+to set both the sending protocol and sending host.
+For example,
+.q \-pUUCP:uunet
+sets the sending protocol to UUCP
+and the sending host to uunet.
+(Some existing programs use \-oM to set the r and s macros;
+this is equivalent to using \-p.)
+.ip \-q\fItime\fP
+Try to process the queued up mail.
+If the time is given,
+a
+.i sendmail
+will run through the queue at the specified interval
+to deliver queued mail;
+otherwise, it only runs once.
+.ip \-q\fIXstring\fP
+Run the queue once,
+limiting the jobs to those matching
+.i Xstring .
+The key letter
+.i X
+can be
+.b I
+to limit based on queue identifier,
+.b R
+to limit based on recipient,
+or
+.b S
+to limit based on sender.
+A particular queued job is accepted if one of the corresponding addresses
+contains the indicated
+.i string .
+.ip "\-R ret"
+What information you want returned if the message bounces;
+.i ret
+can be
+.q HDRS
+for headers only or
+.q FULL
+for headers plus body.
+This is a request only;
+the other end is not required to honor the parameter.
+.ip \-t
+Read the header for
+.q To: ,
+.q Cc: ,
+and
+.q Bcc:
+lines, and send to everyone listed in those lists.
+The
+.q Bcc:
+line will be deleted before sending.
+Any addresses in the argument vector will be deleted
+from the send list.
+.ip "\-U"
+Indicate that this is an initial User Agent submission.
+In future releases, sendmail may complain about syntactically invalid messages
+rather than fixing them when this flag is not set.
+.ip "\-V envid"
+The indicated
+.i envid
+is passed with the envelope of the message
+and returned if the message bounces.
+.ip "\-X \fIlogfile\fP"
+Log all traffic in and out of
+.i sendmail
+in the indicated
+.i logfile
+for debugging mailer problems.
+This produces a lot of data very quickly and should be used sparingly.
+.pp
+There are a number of options that may be specified as
+primitive flags.
+These are the e, i, m, and v options.
+Also,
+the f option
+may be specified as the
+.b \-s
+flag.
+.+c "QUEUE FILE FORMATS"
+.pp
+This appendix describes the format of the queue files.
+These files live in the directory defined by the
+.b Q
+option in the
+.i sendmail.cf
+file, usually
+.i /var/spool/mqueue
+or
+.i /usr/spool/mqueue .
+.pp
+All queue files have the name
+\fIx\fP\|\fBf\fP\fIAAA99999\fP
+where
+.i AAA99999
+is the
+.i id
+for this message
+and the
+.i x
+is a type.
+The first letter of the id encodes the hour of the day
+that the message was received by the system
+(with A being the hour between midnight and 1:00AM).
+All files with the same id collectively define one message.
+.pp
+The types are:
+.nr ii 0.5i
+.ip d
+The data file.
+The message body (excluding the header) is kept in this file.
+.ip q
+The queue control file.
+This file contains the information necessary to process the job.
+.ip t
+A temporary file.
+These are an image of the
+.b qf
+file when it is being rebuilt.
+It should be renamed to a
+.b qf
+file very quickly.
+.ip x
+A transcript file,
+existing during the life of a session
+showing everything that happens
+during that session.
+.pp
+The
+.b qf
+file is structured as a series of lines
+each beginning with a code letter.
+The lines are as follows:
+.ip V
+The version number of the queue file format,
+used to allow new
+.i sendmail
+binaries to read queue files created by older versions.
+Defaults to version zero.
+Must be the first line of the file if present.
+.ip H
+A header definition.
+There may be any number of these lines.
+The order is important:
+they represent the order in the final message.
+These use the same syntax
+as header definitions in the configuration file.
+.ip C
+The controlling address.
+The syntax is
+.q localuser:aliasname .
+Recipient addresses following this line
+will be flagged so that deliveries will be run as the
+.i localuser
+(a user name from the /etc/passwd file);
+.i aliasname
+is the name of the alias that expanded to this address
+(used for printing messages).
+.ip Q
+The ``original recipient'',
+specified by the ORCPT= field in an ESMTP transaction.
+Used exclusively for Delivery Status Notifications.
+It applies only to the immediately following `R' line.
+.ip R
+A recipient address.
+This will normally be completely aliased,
+but is actually realiased when the job is processed.
+There will be one line
+for each recipient.
+Version 1 qf files
+also include a leading colon-terminated list of flags,
+which can be
+`S' to return a message on successful final delivery,
+`F' to return a message on failure,
+`D' to return a message if the message is delayed,
+`B' to indicate that the body should be returned,
+`N' to suppress returning the body,
+and
+`P' to declare this as a ``primary'' (command line or SMTP-session) address.
+.ip S
+The sender address.
+There may only be one of these lines.
+.ip T
+The job creation time.
+This is used to compute when to time out the job.
+.ip P
+The current message priority.
+This is used to order the queue.
+Higher numbers mean lower priorities.
+The priority changes
+as the message sits in the queue.
+The initial priority depends on the message class
+and the size of the message.
+.ip M
+A message.
+This line is printed by the
+.i mailq
+command,
+and is generally used to store status information.
+It can contain any text.
+.ip F
+Flag bits, represented as one letter per flag.
+Defined flag bits are
+.b r
+indicating that this is a response message
+and
+.b w
+indicating that a warning message has been sent
+announcing that the mail has been delayed.
+.ip N
+The total number of delivery attempts.
+.ip K
+The time (as seconds since January 1, 1970)
+of the last delivery attempt.
+.ip I
+The i-number of the data file;
+this can be used to recover your mail queue
+after a disastrous disk crash.
+.ip $
+A macro definition.
+The values of certain macros
+(as of this writing, only
+.b $r
+and
+.b $s )
+are passed through to the queue run phase.
+.ip B
+The body type.
+The remainder of the line is a text string defining the body type.
+If this field is missing,
+the body type is assumed to be
+.q "undefined"
+and no special processing is attempted.
+Legal values are
+.q 7BIT
+and
+.q 8BITMIME .
+.ip O
+The original MTS value (from the ESMTP transaction).
+For Deliver Status Notifications only.
+.ip Z
+The original envelope id (from the ESMTP transaction).
+For Deliver Status Notifications only.
+.pp
+As an example,
+the following is a queue file sent to
+.q eric@mammoth.Berkeley.EDU
+and
+.q bostic@okeeffe.CS.Berkeley.EDU \**:
+.(f
+\**This example is contrived and probably inaccurate for your environment.
+Glance over it to get an idea;
+nothing can replace looking at what your own system generates.
+.)f
+.(b
+P835771
+T404261372
+Seric
+Ceric:sendmail@vangogh.CS.Berkeley.EDU
+Reric@mammoth.Berkeley.EDU
+Rbostic@okeeffe.CS.Berkeley.EDU
+H?P?return-path: <owner-sendmail@vangogh.CS.Berkeley.EDU>
+Hreceived: by vangogh.CS.Berkeley.EDU (5.108/2.7) id AAA06703;
+	Fri, 17 Jul 92 00:28:55 -0700
+Hreceived: from mail.CS.Berkeley.EDU by vangogh.CS.Berkeley.EDU (5.108/2.7)
+	id AAA06698; Fri, 17 Jul 92 00:28:54 -0700
+Hreceived: from [128.32.31.21] by mail.CS.Berkeley.EDU (5.96/2.5)
+	id AA22777; Fri, 17 Jul 92 03:29:14 -0400
+Hreceived: by foo.bar.baz.de (5.57/Ultrix3.0-C)
+	id AA22757; Fri, 17 Jul 92 09:31:25 GMT
+H?F?from: eric@foo.bar.baz.de (Eric Allman)
+H?x?full-name: Eric Allman
+Hmessage-id: <9207170931.AA22757@foo.bar.baz.de>
+HTo: sendmail@vangogh.CS.Berkeley.EDU
+Hsubject: this is an example message
+.)b
+This shows
+the person who sent the message,
+the submission time
+(in seconds since January 1, 1970),
+the message priority,
+the message class,
+the recipients,
+and the headers for the message.
+.+c "SUMMARY OF SUPPORT FILES"
+.pp
+This is a summary of the support files
+that
+.i sendmail
+creates or generates.
+Many of these can be changed by editing the sendmail.cf file;
+check there to find the actual pathnames.
+.nr ii 1i
+.ip "/usr/\*(SD/sendmail"
+The binary of
+.i sendmail .
+.ip /usr/\*(SB/newaliases
+A link to /usr/\*(SD/sendmail;
+causes the alias database to be rebuilt.
+Running this program is completely equivalent to giving
+.i sendmail
+the
+.b \-bi
+flag.
+.ip /usr/\*(SB/mailq
+Prints a listing of the mail queue.
+This program is equivalent to using the
+.b \-bp
+flag to
+.i sendmail .
+.ip /etc/sendmail.cf
+The configuration file,
+in textual form.
+.ip /usr/lib/sendmail.hf
+The SMTP help file.
+.ip /etc/sendmail.st
+A statistics file; need not be present.
+.ip /etc/sendmail.pid
+Created in daemon mode;
+it contains the process id of the current SMTP daemon.
+If you use this in scripts;
+use ``head \-1'' to get just the first line;
+later versions of
+.i sendmail
+may add information to subsequent lines.
+.ip /etc/aliases
+The textual version of the alias file.
+.ip /etc/aliases.{pag,dir}
+The alias file in
+.i dbm \|(3)
+format.
+.ip /var/spool/mqueue
+The directory in which the mail queue
+and temporary files reside.
+.ip /var/spool/mqueue/qf*
+Control (queue) files for messages.
+.ip /var/spool/mqueue/df*
+Data files.
+.ip /var/spool/mqueue/tf*
+Temporary versions of the qf files,
+used during queue file rebuild.
+.ip /var/spool/mqueue/xf*
+A transcript of the current session.
+.if e \
+\{\
+.	bp
+.	rs
+.	sp |4i
+.	ce 2
+This page intentionally left blank;
+replace it with a blank sheet for double-sided output.
+.\}
+.\".ro
+.\".ls 1
+.\".tp
+.\".sp 2i
+.\".in 0
+.\".ce 100
+.\".sz 24
+.\".b SENDMAIL
+.\".sz 14
+.\".sp
+.\"INSTALLATION AND OPERATION GUIDE
+.\".sp
+.\".sz 10
+.\"Eric Allman
+.\".sp
+.\"Version 8.106
+.\".ce 0
+.bp 3
+.ce
+.sz 12
+TABLE OF CONTENTS
+.sz 10
+.sp
+.\" remove some things to avoid "out of temp file space" problem
+.rm sh
+.rm (x
+.rm )x
+.rm ip
+.rm pp
+.rm lp
+.rm he
+.rm fo
+.rm eh
+.rm oh
+.rm ef
+.rm of
+.xp
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+(implements a general purpose internetw)2.982 F .482(ork mail routing f)
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+(ne transport protocol \212 its function may be lik)-2.878 F .378
+(ened to a crossbar switch,)-.1 F 1.036
+(relaying messages from one domain into another)72 324.6 R 6.036(.I)-.55
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+(he process, it can do a limited amount of message)-3.536 F .604(header editing to put the message into a format that is appropriate for the recei)
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+(done under the control of a con\214guration \214le.)72 348.6 Q .711
+(Due to the requirements of \215e)97 364.8 R .711(xibility for)-.15 F F3
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+-2.893 F .646(ration \214les ha)72 388.8 R .946 -.15(ve b)-.2 H .646
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+(tion \214les incrementally)72 400.8 Q(.)-.65 E F3(Sendmail)97 417 Q F2
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+(ransport Protocol\), RFC822 \(Internet Mail F)-.35 F .15(ormat Pro-)
+-.15 F .423(tocol\), RFC1123 \(Internet Host Requirements\), RFC1521 \(MIME\), RFC1651 \(SMTP Service Extensions\),)
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+.15 F .251(Remote Message Queue Starting\).)72 465 R(Ho)5.251 E(we)-.25
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+(xceed these protocols.)-.15 E(These cases are described herein.)5 E
+(Although)97 493.2 Q F3(sendmail)3.548 E F2 1.047(is intended to run without the need for monitoring, it has a number of features)
+3.548 F 1.972(that may be used to monitor or adjust the operation under unusual circumstances.)
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+(ection three).65 F .925
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+(ilable on nearly all systems around today).25 F 5.666(.T)-.65 G(his)
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+(he preferred format prior to 4.4BSD.)-3.54 F 1.041(It allo)6.041 F
+1.041(ws such comple)-.25 F 3.541(xt)-.15 G 1.041(hings as)-3.541 F
+(multiple databases and closing a currently open database.)189 453.6 Q
+32.84(NEWDB The)117 469.8 R(ne)3.324 E 3.324(wd)-.25 G .824
+(atabase package from Berk)-3.324 F(ele)-.1 E 4.624 -.65(y. I)-.15 H
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+(his, use it.).15 F .823(It allo)5.823 F(ws)-.25 E .839(long records, multiple open databases, real in-memory caching, and so forth.)
+189 481.8 R -1.1(Yo)189 493.8 S 3.582(uc)1.1 G 1.081
+(an de\214ne this in conjunction with one of the other tw)-3.582 F 1.081
+(o; if you do, old)-.1 F .692(databases are read, b)189 505.8 R .693
+(ut when a ne)-.2 F 3.193(wd)-.25 G .693
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+517.8 R 2.852(an)2.852 G .352(asty hack, if you ha)-2.852 F .651 -.15
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+(if the alias \214le name includes the substring \231/yp/\232,)189 529.8
+R F2(sendmail)3.452 E F1 .952(will create both)3.452 F(ne)189 541.8 Q
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+(ersion of the alias)-.15 F 2.5(\214le. It')189 565.8 R 2.5(su)-.55 G
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+1.112(ry in).15 F -.2(vo)-.4 G(cation.).2 E 1.042(This can be slo)117
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+(ork Information Services \(formerly YP\).)-.1 E 28.94(NISPLUS Sun')117
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+(pile and install the system.)117 124.2 Q(The script \231mak)5 E
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+140.4 Q(esendmail)-.1 E(This will use)117 156.6 Q/F2 10/Times-Italic@0
+SF(uname)2.5 E F1(\(1\) to select the correct Mak)A(e\214le for your en)
+-.1 E(vironment.)-.4 E -1.1(Yo)142 172.8 S 2.5(um)1.1 G
+(ay be able to install using)-2.5 E(sh mak)157 189 Q(esendmail install)
+-.1 E 3.346(This should install the binary in /usr/sbin and create links from /usr/bin/ne)
+117 205.2 R -.1(wa)-.25 G 3.345(liases and).1 F 1.576
+(/usr/bin/mailq to /usr/sbin/sendmail.)117 217.2 R 1.577
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+117 229.2 Q F0 2.5(1.2. Con\214guration)87 253.2 R(Files)2.5 E F2
+(Sendmail)127 269.4 Q F1 2.079
+(cannot operate without a con\214guration \214le.)4.58 F 2.079
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+(mail systems, and a number of tuning parameters.)102 293.4 R .088
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+E(tion of this document.)102 305.4 Q(The)127 321.6 Q F2(sendmail)2.764 E
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+F(of the comple)102 345.6 Q(xity)-.15 E(.)-.65 E .47
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+-.1 F 1.449(simpler; in particular)102 373.8 R 3.949(,t)-.4 G -.15(ex)
+-3.949 G 1.449(t-based host \214les are of).15 F 1.448
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+127 402 R .361(is, instead of naming hosts as \231host!user\232 the)102
+414 R 2.861(yw)-.15 G .361(ill use \231host.domain!user\232.)-2.861 F
+.36(The con\214guration \214les)5.36 F(can be customized to w)102 426 Q
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+F1 .658(to f)3.158 F .658(acilitate local customization; the directory)
+-.1 F F2(cf)3.158 E F1 .397(of the)102 454.2 R F2(sendmail)2.897 E F1
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+.396(This directory contains se)5.396 F -.15(ve)-.25 G .396(ral sub-).15
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+(site-dependent and site-independent descriptions of hosts.)3.06 F .56
+(These can be lit-)5.56 F .445(eral host names \(e.g., \231ucb)174 494.4
+R -.25(va)-.15 G .445(x.mc\232\) when the hosts are g).25 F(ate)-.05 E
+-.1(wa)-.25 G .445(ys or more general).1 F 1.812(descriptions \(such as \231tcpproto.mc\232 as a general description of an SMTP-con-)
+174 506.4 R 1.98(nected host or \231uucpproto.mc\232 as a general description of a UUCP-connected)
+174 518.4 R 3.291(host\). Files)174 530.4 R(ending)3.291 E F0(.mc)3.291
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+(niza-).05 E .292(tion w)174 582.6 R .292(ants to do addressing.)-.1 F
+-.15(Fo)5.292 G 2.792(re).15 G(xample,)-2.942 E F0(domain/cs.exposed.m4)
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+(EDU subdomain that w).65 F .443(ant their indi)-.1 F .443(vidual host-)
+-.25 F .963(name to be e)174 606.6 R .963(xternally visible;)-.15 F F0
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+-.25 G 2.628(rything looks lik).15 F 5.128(ei)-.1 G 5.128(tc)-5.128 G
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+3.229 F(ant.)-.1 E 2.466(These are referenced using the)174 658.8 R F3
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+(ving them here is to mak)-.2 E 2.5(ei)-.1 G 2.5(tc)-2.5 G
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+(SMM:08-9)200.86 E/F1 10/Times-Roman@0 SF 56.72(m4 Site-independent)102
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+(\(1\) include \214les that ha)B .338 -.15(ve i)-.2 H .038
+(nformation common to all con\214gu-).15 F(ration \214les.)174 108 Q
+(This can be thought of as a \231#include\232 directory)5 E(.)-.65 E
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+249 Q(SITE\(nkainc\))214 261 Q(SITE\(well\))214 273 Q(The)174 289.2 Q
+2.5(ya)-.15 G(re referenced using the SITECONFIG macro:)-2.5 E
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+(omain \(e.g., a compan)-3.257 F .756(y\), you will probably w)-.15 F
+.756(ant to create a cf/domain)-.1 F .87(\214le for your domain.)102
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+-3.371 E .16(de\214nition de\214nes relays for BitNET)102 397.8 R 2.66
+(,C)-.74 G(SNET)-2.66 E 2.66(,a)-.74 G .16(nd UUCP)-2.66 F 5.16(.O)-1.11
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+(larly speci\214c to Berk)102 409.8 R(ele)-.1 E 4.26 -.65(y. A)-.15 H
+.46(ll of these are internet-style domain names.).65 F .46
+(Please check to mak)5.46 F 2.96(ec)-.1 G(er)-2.96 E(-)-.2 E(tain the)
+102 421.8 Q 2.5(ya)-.15 G(re reasonable for your domain.)-2.5 E 1.407
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+1.491
+(xposed is the Computer Science subdomain with the local hostname sho)
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+(host information included\).)102 474 R -1.1(Yo)6.083 G 3.583(uw)1.1 G
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+102 486 Q -1.1(Yo)127 502.2 S 4.373(uw)1.1 G 1.873(ill ha)-4.373 F 2.173
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+(This subsection describes the \214les that comprise the)127 554.4 Q F2
+(sendmail)2.5 E F1(installation.)2.5 E F0 2.5(1.3.1. /usr/sbin/sendmail)
+102 578.4 R F1 .08(The binary for)142 596.6 R F2(sendmail)2.58 E F1 .079
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+DL 80 646 76 646 DL 84 646 80 646 DL 88 646 84 646 DL 92 646 88 646 DL
+96 646 92 646 DL 100 646 96 646 DL 104 646 100 646 DL 108 646 104 646 DL
+112 646 108 646 DL 116 646 112 646 DL 120 646 116 646 DL 124 646 120 646
+DL 128 646 124 646 DL 132 646 128 646 DL 136 646 132 646 DL 140 646 136
+646 DL 144 646 140 646 DL 148 646 144 646 DL 152 646 148 646 DL 156 646
+152 646 DL 160 646 156 646 DL 164 646 160 646 DL 168 646 164 646 DL 172
+646 168 646 DL 176 646 172 646 DL 180 646 176 646 DL 184 646 180 646 DL
+188 646 184 646 DL 192 646 188 646 DL 196 646 192 646 DL 200 646 196 646
+DL 204 646 200 646 DL 208 646 204 646 DL 212 646 208 646 DL 216 646 212
+646 DL/F5 5/Times-Roman@0 SF(1)93.6 656.4 Q/F6 8/Times-Roman@0 SF .384
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+(.I)-.32 G .385(understand it is in /usr/ucblib on)-2 F
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+-.2 F/F7 8/Times-Italic@0 SF(sendmail)2.15 E F6 4.15(.O)C .15
+(ther important di-)-4.15 F(rectories that should ha)72 692.4 Q .24 -.12
+(ve r)-.16 H(estricti).12 E .24 -.12(ve o)-.2 H(wnerships and permissions are /bin, /usr/bin, /etc, /usr/etc, /lib, and /usr/lib)
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+%%Page: 10 6
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+/F0 10/Times-Bold@0 SF 193.36(SMM:08-10 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E 2.5(1.3.2. /etc/sendmail.cf)102
+96 R/F1 10/Times-Roman@0 SF .698(This is the con\214guration \214le for)
+142 114.2 R/F2 10/Times-Italic@0 SF(sendmail)3.198 E/F3 7/Times-Roman@0
+SF(3)-4 I F1 5.698(.T)4 K .699
+(his and /etc/sendmail.pid are the only non-)-5.698 F
+(library \214le names compiled into)117 128.2 Q F2(sendmail)2.5 E F3(4)
+-4 I F1(.)4 I .721
+(The con\214guration \214le is normally created using the distrib)142
+144.4 R .721(ution \214les described abo)-.2 F -.15(ve)-.15 G 5.721(.I)
+.15 G(f)-5.721 E .64(you ha)117 156.4 R .94 -.15(ve a p)-.2 H .64(articularly unusual system con\214guration you may need to create a special v)
+.15 F(ersion.)-.15 E(The format of this \214le is detailed in later sections of this document.)
+117 168.4 Q F0 2.5(1.3.3. /usr/bin/newaliases)102 192.4 R F1(The)142
+208.6 Q F2(ne)2.5 E(waliases)-.15 E F1(command should just be a link to)
+2.5 E F2(sendmail)2.5 E F1(:)A(rm \255f /usr/bin/ne)157 224.8 Q -.1(wa)
+-.25 G(liases).1 E(ln \255s /usr/sbin/sendmail /usr/bin/ne)157 236.8 Q
+-.1(wa)-.25 G(liases).1 E(This can be installed in whate)117 253 Q -.15
+(ve)-.25 G 2.5(rs).15 G(earch path you prefer for your system.)-2.5 E F0
+2.5(1.3.4. /usr/bin/hoststat)102 277 R F1(The)142 293.2 Q F2(hoststat)
+5.844 E F1 3.344(command should just be a link to)5.844 F F2(sendmail)
+5.844 E F1 5.844(,i)C 5.845(naf)-5.844 G 3.345(ashion similar to)-5.945
+F F2(ne)117 305.2 Q(waliases)-.15 E F1 5.607(.T)C .607(his command lists the status of the last mail transaction with all remote hosts.)
+-5.607 F(It)5.606 E(functions only when the)117 317.2 Q F0
+(HostStatusDir)2.5 E(ectory)-.18 E F1(option is set.)2.5 E F0 2.5
+(1.3.5. /usr/bin/pur)102 341.2 R(gestat)-.1 E F1 .993
+(This command is also a link to)142 357.4 R F2(sendmail)3.493 E F1 5.993
+(.I)C 3.493<748d>-5.993 G .993
+(ushes all information that is stored in the)-3.493 F F0(HostStatusDir)
+117 369.4 Q(ectory)-.18 E F1(tree.)2.5 E F0 2.5(1.3.6. /v)102 393.4 R
+(ar/spool/mqueue)-.1 E F1 .218(The directory)142 409.6 R F2
+(/var/spool/mqueue)2.718 E F1 .217
+(should be created to hold the mail queue.)2.718 F .217(This directory)
+5.217 F(should be mode 700 and o)117 421.6 Q(wned by root.)-.25 E
+(The actual path of this directory is de\214ned in the)142 437.8 Q F0(Q)
+2.5 E F1(option of the)2.5 E F2(sendmail.cf)2.5 E F1(\214le.)2.5 E F0
+2.5(1.3.7. /v)102 461.8 R(ar/spool/mqueue/.hoststat)-.1 E F1 1.044
+(This is a typical v)142 478 R 1.044(alue for the)-.25 F F0
+(HostStatusDir)3.545 E(ectory)-.18 E F1 1.045
+(option, containing one \214le per host)3.545 F
+(that this sendmail has chatted with recently)117 490 Q 5(.I)-.65 G 2.5
+(ti)-5 G 2.5(sn)-2.5 G(ormally a subdirectory of)-2.5 E F2(mqueue)2.5 E
+F1(.)A F0 2.5(1.3.8. /etc/aliases*)102 514 R F1 1.493
+(The system aliases are held in \231/etc/aliases\232.)142 530.2 R 3.992
+(As)6.492 G 1.492(ample is gi)-3.992 F -.15(ve)-.25 G 3.992(ni).15 G
+3.992<6e99>-3.992 G 1.492(lib/aliases\232 which)-3.992 F
+(includes some aliases which)117 542.2 Q F2(must)2.5 E F1(be de\214ned:)
+2.5 E(cp lib/aliases /etc/aliases)157 558.4 Q F2(edit /etc/aliases)157
+570.4 Q F1 -1.1(Yo)117 586.6 S 2.5(us)1.1 G(hould e)-2.5 E
+(xtend this \214le with an)-.15 E 2.5(ya)-.15 G
+(liases that are apropos to your system.)-2.5 E(Normally)142 602.8 Q F2
+(sendmail)3.609 E F1 1.109(looks at a v)3.609 F 1.109
+(ersion of these \214les maintained by the)-.15 F F2(dbm)3.609 E F1 1.11
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+614.8 R .96(are stored either in \231/etc/aliases.dir\232 and \231/etc/aliases.pag\232 or \231/etc/aliases.db\232)
+3.46 F 1.022(depending on which database package you are using.)117
+626.8 R 1.022(These can initially be created as empty)6.022 F
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+648.4 76 648.4 DL 84 648.4 80 648.4 DL 88 648.4 84 648.4 DL 92 648.4 88
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+120 648.4 116 648.4 DL 124 648.4 120 648.4 DL 128 648.4 124 648.4 DL 132
+648.4 128 648.4 DL 136 648.4 132 648.4 DL 140 648.4 136 648.4 DL 144
+648.4 140 648.4 DL 148 648.4 144 648.4 DL 152 648.4 148 648.4 DL 156
+648.4 152 648.4 DL 160 648.4 156 648.4 DL 164 648.4 160 648.4 DL 168
+648.4 164 648.4 DL 172 648.4 168 648.4 DL 176 648.4 172 648.4 DL 180
+648.4 176 648.4 DL 184 648.4 180 648.4 DL 188 648.4 184 648.4 DL 192
+648.4 188 648.4 DL 196 648.4 192 648.4 DL 200 648.4 196 648.4 DL 204
+648.4 200 648.4 DL 208 648.4 204 648.4 DL 212 648.4 208 648.4 DL 216
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+/Times-Roman@0 SF(Actually)3.2 I 2.277(,t)-.52 G .277(he pathname v)
+-2.277 F .276(aries depending on the operating system; /etc is the preferred directory)
+-.2 F 4.276(.S)-.52 G .276(ome older systems install it)-4.276 F(in)72
+671.6 Q/F6 8/Times-Bold@0 SF(/usr/lib/sendmail.cf)2 E F5 2(,a)C(nd I')-2
+E .24 -.12(ve a)-.4 H(lso seen it in).12 E F6(/usr/ucblib)2 E F5(and)2 E
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+(ve t)-.12 H(his \214le, change).12 E/F7 8/Times-Italic@0 SF(sr)2 E
+(c/conf)-.296 E(.h)-.12 E F5(.)A F4(4)93.6 682 Q F5 .589
+(The system libraries can reference other \214les; in particular)3.2 J
+2.589(,s)-.32 G .589(ystem library subroutines that)-2.589 F F7
+(sendmail)2.588 E F5 .588(calls probably reference)2.588 F F7
+(/etc/passwd)72 694.8 Q F5(and)2 E F7(/etc/r)2 E(esolv)-.296 E(.conf)
+-.592 E F5(.)A EP
+%%Page: 11 7
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-11)195.86 E/F1 10/Times-Roman@0 SF(cp /de)157 96 Q
+(v/null /etc/aliases.dir)-.25 E(cp /de)157 108 Q
+(v/null /etc/aliases.pag)-.25 E(chmod 644 /etc/aliases.*)157 120 Q(ne)
+157 132 Q -.1(wa)-.25 G(liases).1 E(The)117 148.2 Q/F2 10/Times-Italic@0
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+-.65 G 2.79(ot)-2.79 G .29(his step can be skipped.)-2.79 F .29
+(The actual path of this)5.29 F(\214le is de\214ned in the)117 160.2 Q
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+(\214le.)2.5 E F0 2.5(1.3.9. /etc/r)102 184.2 R(c)-.18 E F1 .155
+(It will be necessary to start up the)142 200.4 R F2(sendmail)2.655 E F1
+.156(daemon when your system reboots.)2.655 F .156(This dae-)5.156 F
+1.538(mon performs tw)117 212.4 R 4.037(of)-.1 G 1.537
+(unctions: it listens on the SMTP sock)-4.037 F 1.537
+(et for connections \(to recei)-.1 F 1.837 -.15(ve m)-.25 H(ail).15 E
+.442(from a remote system\) and it processes the queue periodically to insure that mail gets deli)
+117 224.4 R -.15(ve)-.25 G(red).15 E(when hosts come up.)117 236.4 Q
+.505(Add the follo)142 252.6 R .505(wing lines to \231/etc/rc\232 \(or \231/etc/rc.local\232 as appropriate\) in the area where it)
+-.25 F(is starting up the daemons:)117 264.6 Q
+(if [ \255f /usr/sbin/sendmail \255a \255f /etc/sendmail.cf ]; then)157
+280.8 Q(\(cd /v)193 292.8 Q(ar/spool/mqueue; rm \255f [lnx]f*\))-.25 E
+(/usr/sbin/sendmail \255bd \255q30m &)193 304.8 Q
+(echo \255n ' sendmail' >/de)193 316.8 Q(v/console)-.25 E<8c>157 328.8 Q
+.173
+(The \231cd\232 and \231rm\232 commands insure that all lock \214les ha)
+117 345 R .474 -.15(ve b)-.2 H .174(een remo).15 F -.15(ve)-.15 G .174
+(d; e).15 F .174(xtraneous lock \214les)-.15 F .005
+(may be left around if the system goes do)117 357 R .004
+(wn in the middle of processing a message.)-.25 F .004(The line that)
+5.004 F 2.293(actually in)117 369 R -.2(vo)-.4 G -.1(ke).2 G(s).1 E F2
+(sendmail)4.793 E F1 2.293(has tw)4.793 F 4.793<6f8d>-.1 G 2.293
+(ags: \231\255bd\232 causes it to listen on the SMTP port, and)-4.793 F
+(\231\255q30m\232 causes it to run the queue e)117 381 Q -.15(ve)-.25 G
+(ry half hour).15 E(.)-.55 E .379(Some people use a more comple)142
+397.2 R 2.879(xs)-.15 G .379(tartup script, remo)-2.879 F .378
+(ving zero length qf \214les and df \214les)-.15 F 1.12
+(for which there is no qf \214le.)117 409.2 R -.15(Fo)6.12 G 3.62(re).15
+G 1.121(xample, see Figure 1 for an e)-3.77 F 1.121(xample of a comple)
+-.15 F 3.621(xs)-.15 G(tartup)-3.621 E(script.)117 421.2 Q .756
+(If you are not running a v)142 437.4 R .755
+(ersion of UNIX that supports Berk)-.15 F(ele)-.1 E 3.255(yT)-.15 G
+(CP/IP)-3.255 E 3.255(,d)-1.11 G 3.255(on)-3.255 G .755(ot include)
+-3.255 F(the)117 449.4 Q F0(\255bd)2.5 E F1(\215ag.)2.5 E F0 2.5
+(1.3.10. /usr/lib/sendmail.hf)102 473.4 R F1 2.078
+(This is the help \214le used by the SMTP)142 489.6 R F0(HELP)4.578 E F1
+4.578(command. It)4.578 F 2.078(should be copied from)4.578 F
+(\231lib/sendmail.hf\232:)117 501.6 Q(cp lib/sendmail.hf /usr/lib)157
+517.8 Q(The actual path of this \214le is de\214ned in the)117 534 Q F0
+(H)2.5 E F1(option of the)2.5 E F2(sendmail.cf)2.5 E F1(\214le.)2.5 E F0
+2.5(1.3.11. /etc/sendmail.st)102 558 R F1 3.04
+(If you wish to collect statistics about your mail traf)142 574.2 R 3.04
+(\214c, you should create the \214le)-.25 F(\231/etc/sendmail.st\232:)
+117 586.2 Q(cp /de)157 602.4 Q(v/null /etc/sendmail.st)-.25 E
+(chmod 666 /etc/sendmail.st)157 614.4 Q .715(This \214le does not gro)
+117 630.6 R 4.516 -.65(w. I)-.25 H 3.216(ti).65 G 3.216(sp)-3.216 G .716
+(rinted with the program \231mailstats/mailstats.c.)-3.216 F 5.716<9a54>
+-.7 G .716(he actual path)-5.716 F(of this \214le is de\214ned in the)
+117 642.6 Q F0(S)2.5 E F1(option of the)2.5 E F2(sendmail.cf)2.5 E F1
+(\214le.)2.5 E F0 2.5(1.3.12. /usr/bin/mailq)102 666.6 R F1(If)142 682.8
+Q F2(sendmail)3.44 E F1 .94(is in)3.44 F -.2(vo)-.4 G -.1(ke).2 G 3.44
+(da).1 G 3.44<7399>-3.44 G(mailq,)-3.44 E 3.439<9a69>-.7 G 3.439(tw)
+-3.439 G .939(ill simulate the)-3.439 F F0(\255bp)3.439 E F1 .939
+(\215ag \(i.e.,)3.439 F F2(sendmail)3.439 E F1 .939(will print)3.439 F
+(the contents of the mail queue; see belo)117 694.8 Q 2.5(w\). This)-.25
+F(should be a link to /usr/sbin/sendmail.)2.5 E EP
+%%Page: 12 8
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF 193.36(SMM:08-12 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E .4 LW 77 108 72 108 DL 79 108 74
+108 DL 84 108 79 108 DL 89 108 84 108 DL 94 108 89 108 DL 99 108 94 108
+DL 104 108 99 108 DL 109 108 104 108 DL 114 108 109 108 DL 119 108 114
+108 DL 124 108 119 108 DL 129 108 124 108 DL 134 108 129 108 DL 139 108
+134 108 DL 144 108 139 108 DL 149 108 144 108 DL 154 108 149 108 DL 159
+108 154 108 DL 164 108 159 108 DL 169 108 164 108 DL 174 108 169 108 DL
+179 108 174 108 DL 184 108 179 108 DL 189 108 184 108 DL 194 108 189 108
+DL 199 108 194 108 DL 204 108 199 108 DL 209 108 204 108 DL 214 108 209
+108 DL 219 108 214 108 DL 224 108 219 108 DL 229 108 224 108 DL 234 108
+229 108 DL 239 108 234 108 DL 244 108 239 108 DL 249 108 244 108 DL 254
+108 249 108 DL 259 108 254 108 DL 264 108 259 108 DL 269 108 264 108 DL
+274 108 269 108 DL 279 108 274 108 DL 284 108 279 108 DL 289 108 284 108
+DL 294 108 289 108 DL 299 108 294 108 DL 304 108 299 108 DL 309 108 304
+108 DL 314 108 309 108 DL 319 108 314 108 DL 324 108 319 108 DL 329 108
+324 108 DL 334 108 329 108 DL 339 108 334 108 DL 344 108 339 108 DL 349
+108 344 108 DL 354 108 349 108 DL 359 108 354 108 DL 364 108 359 108 DL
+369 108 364 108 DL 374 108 369 108 DL 379 108 374 108 DL 384 108 379 108
+DL 389 108 384 108 DL 394 108 389 108 DL 399 108 394 108 DL 404 108 399
+108 DL 409 108 404 108 DL 414 108 409 108 DL 419 108 414 108 DL 424 108
+419 108 DL 429 108 424 108 DL 434 108 429 108 DL 439 108 434 108 DL 444
+108 439 108 DL 449 108 444 108 DL 454 108 449 108 DL 459 108 454 108 DL
+464 108 459 108 DL 469 108 464 108 DL 474 108 469 108 DL 479 108 474 108
+DL 484 108 479 108 DL 489 108 484 108 DL 494 108 489 108 DL 499 108 494
+108 DL 504 108 499 108 DL/F1 10/Times-Roman@0 SF 2.5(#r)72 132 S(emo)
+-2.5 E .3 -.15(ve z)-.15 H(ero length qf \214les).15 E(for qf)72 144 Q
+(\214le in qf*)-.25 E(do)72 156 Q(if [ \255r $qf)108 168 Q(\214le ])-.25
+E(then)108 180 Q(if [ ! \255s $qf)144 192 Q(\214le ])-.25 E(then)144 204
+Q(echo \255n " <zero: $qf)180 216 Q(\214le>" > /de)-.25 E(v/console)-.25
+E(rm \255f $qf)180 228 Q(\214le)-.25 E<8c>144 240 Q<8c>108 252 Q(done)72
+264 Q 2.5(#r)72 276 S(ename tf \214les to be qf if the qf does not e)
+-2.5 E(xist)-.15 E(for tf)72 288 Q(\214le in tf*)-.25 E(do)72 300 Q(qf)
+108 312 Q(\214le=`echo $tf)-.25 E(\214le | sed ')-.25 E(s/t/q/'`)-.55 E
+(if [ \255r $tf)108 324 Q(\214le \255a ! \255f $qf)-.25 E(\214le ])-.25
+E(then)108 336 Q(echo \255n " <reco)144 348 Q -.15(ve)-.15 G(ring: $tf)
+.15 E(\214le>" > /de)-.25 E(v/console)-.25 E(mv $tf)144 360 Q
+(\214le $qf)-.25 E(\214le)-.25 E(else)108 372 Q(echo \255n " <e)144 384
+Q(xtra: $tf)-.15 E(\214le>" > /de)-.25 E(v/console)-.25 E(rm \255f $tf)
+144 396 Q(\214le)-.25 E<8c>108 408 Q(done)72 420 Q 2.5(#r)72 432 S(emo)
+-2.5 E .3 -.15(ve d)-.15 H 2.5<668c>.15 G
+(les with no corresponding qf \214les)-2.5 E(for df)72 444 Q
+(\214le in df*)-.25 E(do)72 456 Q(qf)108 468 Q(\214le=`echo $df)-.25 E
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+(\214le \255a ! \255f $qf)-.25 E(\214le ])-.25 E(then)108 492 Q
+(echo \255n " <incomplete: $df)144 504 Q(\214le>" > /de)-.25 E
+(v/console)-.25 E(mv $df)144 516 Q(\214le `echo $df)-.25 E
+(\214le | sed ')-.25 E(s/d/D/'`)-.55 E<8c>108 528 Q(done)72 540 Q 2.5
+(#a)72 552 S(nnounce \214les that ha)-2.5 E .3 -.15(ve b)-.2 H(een sa)
+.15 E -.15(ve)-.2 G 2.5(dd).15 G(uring disaster reco)-2.5 E -.15(ve)-.15
+G(ry).15 E(for xf)72 564 Q(\214le in [A-Z]f*)-.25 E(do)72 576 Q
+(echo \255n " <panic: $xf)108 588 Q(\214le>" > /de)-.25 E(v/console)-.25
+E(done)72 600 Q(Figure 1 \212 A comple)214.47 624 Q 2.5(xs)-.15 G
+(tartup script)-2.5 E 77 636 72 636 DL 79 636 74 636 DL 84 636 79 636 DL
+89 636 84 636 DL 94 636 89 636 DL 99 636 94 636 DL 104 636 99 636 DL 109
+636 104 636 DL 114 636 109 636 DL 119 636 114 636 DL 124 636 119 636 DL
+129 636 124 636 DL 134 636 129 636 DL 139 636 134 636 DL 144 636 139 636
+DL 149 636 144 636 DL 154 636 149 636 DL 159 636 154 636 DL 164 636 159
+636 DL 169 636 164 636 DL 174 636 169 636 DL 179 636 174 636 DL 184 636
+179 636 DL 189 636 184 636 DL 194 636 189 636 DL 199 636 194 636 DL 204
+636 199 636 DL 209 636 204 636 DL 214 636 209 636 DL 219 636 214 636 DL
+224 636 219 636 DL 229 636 224 636 DL 234 636 229 636 DL 239 636 234 636
+DL 244 636 239 636 DL 249 636 244 636 DL 254 636 249 636 DL 259 636 254
+636 DL 264 636 259 636 DL 269 636 264 636 DL 274 636 269 636 DL 279 636
+274 636 DL 284 636 279 636 DL 289 636 284 636 DL 294 636 289 636 DL 299
+636 294 636 DL 304 636 299 636 DL 309 636 304 636 DL 314 636 309 636 DL
+319 636 314 636 DL 324 636 319 636 DL 329 636 324 636 DL 334 636 329 636
+DL 339 636 334 636 DL 344 636 339 636 DL 349 636 344 636 DL 354 636 349
+636 DL 359 636 354 636 DL 364 636 359 636 DL 369 636 364 636 DL 374 636
+369 636 DL 379 636 374 636 DL 384 636 379 636 DL 389 636 384 636 DL 394
+636 389 636 DL 399 636 394 636 DL 404 636 399 636 DL 409 636 404 636 DL
+414 636 409 636 DL 419 636 414 636 DL 424 636 419 636 DL 429 636 424 636
+DL 434 636 429 636 DL 439 636 434 636 DL 444 636 439 636 DL 449 636 444
+636 DL 454 636 449 636 DL 459 636 454 636 DL 464 636 459 636 DL 469 636
+464 636 DL 474 636 469 636 DL 479 636 474 636 DL 484 636 479 636 DL 489
+636 484 636 DL 494 636 489 636 DL 499 636 494 636 DL 504 636 499 636 DL
+F0 2.5(2. NORMAL)72 672 R(OPERA)2.5 E(TIONS)-.95 E 2.5(2.1. The)87 696 R
+(System Log)2.5 E F1 1.511(The system log is supported by the)127 712.2
+R/F2 10/Times-Italic@0 SF(syslo)4.011 E(gd)-.1 E F1 1.511
+(\(8\) program.)1.666 F 1.511(All messages from)6.511 F F2(sendmail)
+4.011 E F1(are)4.012 E EP
+%%Page: 13 9
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-13)195.86 E/F1 10/Times-Roman@0 SF(logged under the)102 98 Q/F2
+9/Times-Roman@0 SF(LOG_MAIL)2.5 E F1 -.1(fa)2.5 G(cility).1 E/F3 7
+/Times-Roman@0 SF(5)-4 I F1(.)4 I F0 2.5(2.1.1. F)102 122 R(ormat)-.25 E
+F1 .574(Each line in the system log consists of a timestamp, the name of the machine that gener)
+142 138.2 R(-)-.2 E .848(ated it \(for logging from se)117 150.2 R -.15
+(ve)-.25 G .848(ral machines o).15 F -.15(ve)-.15 G 3.349(rt).15 G .849
+(he local area netw)-3.349 F .849(ork\), the w)-.1 F .849
+(ord \231sendmail:\232,)-.1 F(and a message)117 164.2 Q F3(6)-4 I F1 5
+(.M)4 K(ost messages are a sequence of)-5 E/F4 10/Times-Italic@0 SF
+(name)2.5 E F1(=)A F4(value)A F1(pairs.)2.5 E .68(The tw)142 180.4 R
+3.18(om)-.1 G .68
+(ost common lines are logged when a message is processed.)-3.18 F .68
+(The \214rst logs the)5.68 F .376(receipt of a message; there will be e)
+117 192.4 R .376(xactly one of these per message.)-.15 F .376
+(Some \214elds may be omit-)5.376 F(ted if the)117 204.4 Q 2.5(yd)-.15 G
+2.5(on)-2.5 G(ot contain interesting information.)-2.5 E(Fields are:)5 E
+50.06(from The)117 220.6 R(en)2.5 E -.15(ve)-.4 G(lope sender address.)
+.15 E 53.95(size The)117 236.8 R(size of the message in bytes.)2.5 E
+50.06(class The)117 253 R
+(class \(i.e., numeric precedence\) of the message.)2.5 E 58.39(pri The)
+117 269.2 R(initial message priority \(used for queue sorting\).)2.5 E
+45.06(nrcpts The)117 285.4 R 1.515(number of en)4.015 F -.15(ve)-.4 G
+1.514(lope recipients for this message \(after aliasing and for).15 F(-)
+-.2 E -.1(wa)189 297.4 S(rding\).).1 E 45.05(msgid The)117 313.6 R
+(message id of the message \(from the header\).)2.5 E 48.39(proto The)
+117 329.8 R(protocol used to recei)2.5 E .3 -.15(ve t)-.25 H
+(his message \(e.g., ESMTP or UUCP\)).15 E 49.51(relay The)117 346 R
+(machine from which it w)2.5 E(as recei)-.1 E -.15(ve)-.25 G(d.).15 E
+.43(There is also one line logged per deli)117 362.2 R -.15(ve)-.25 G
+.43(ry attempt \(so there can be se).15 F -.15(ve)-.25 G .43
+(ral per message if deli).15 F(v-)-.25 E
+(ery is deferred or there are multiple recipients\).)117 374.2 Q
+(Fields are:)5 E 61.72(to A)117 390.4 R
+(comma-separated list of the recipients to this mailer)2.5 E(.)-.55 E
+41.73(ctladdr The)117 406.6 R -.74(``)2.727 G .227(controlling user').74
+F .226(', that is, the name of the user whose credentials we use)-.74 F
+(for deli)189 418.6 Q -.15(ve)-.25 G(ry).15 E(.)-.65 E 47.84(delay The)
+117 434.8 R 1.303(total delay between the time this message w)3.803 F
+1.303(as recei)-.1 F -.15(ve)-.25 G 3.803(da).15 G 1.303(nd the time it)
+-3.803 F -.1(wa)189 446.8 S 2.5(sd).1 G(eli)-2.5 E -.15(ve)-.25 G(red.)
+.15 E 42.84(xdelay The)117 463 R .116
+(amount of time needed in this deli)2.616 F -.15(ve)-.25 G .116
+(ry attempt \(normally indicati).15 F .415 -.15(ve o)-.25 H 2.615(ft).15
+G(he)-2.615 E(speed of the connection\).)189 475 Q 43.95(mailer The)117
+491.2 R(name of the mailer used to deli)2.5 E -.15(ve)-.25 G 2.5(rt).15
+G 2.5(ot)-2.5 G(his recipient.)-2.5 E 49.51(relay The)117 507.4 R(name of the host that actually accepted \(or rejected\) this recipient.)
+2.5 E 55.61(stat The)117 523.6 R(deli)2.5 E -.15(ve)-.25 G(ry status.)
+.15 E(Not all \214elds are present in all messages; for e)117 539.8 Q
+(xample, the relay is not listed for local deli)-.15 E -.15(ve)-.25 G
+(ries.).15 E F0 2.5(2.1.2. Le)102 563.8 R -.1(ve)-.15 G(ls).1 E F1 .204
+(If you ha)142 580 R -.15(ve)-.2 G F4(syslo)2.854 E(gd)-.1 E F1 .204
+(\(8\) or an equi)1.666 F -.25(va)-.25 G .205
+(lent installed, you will be able to do logging.).25 F .205(There is)
+5.205 F 2.788(al)117 592 S(ar)-2.788 E .287
+(ge amount of information that can be logged.)-.18 F .287
+(The log is arranged as a succession of le)5.287 F -.15(ve)-.25 G(ls.)
+.15 E .65(At the lo)117 604 R .65(west le)-.25 F -.15(ve)-.25 G 3.15(lo)
+.15 G .65(nly e)-3.15 F .651(xtremely strange situations are logged.)
+-.15 F .651(At the highest le)5.651 F -.15(ve)-.25 G .651(l, e).15 F
+-.15(ve)-.25 G 3.151(nt).15 G(he)-3.151 E .826
+(most mundane and uninteresting e)117 616 R -.15(ve)-.25 G .825
+(nts are recorded for posterity).15 F 5.825(.A)-.65 G 3.325(sac)-5.825 G
+(on)-3.325 E -.15(ve)-.4 G .825(ntion, log le).15 F -.15(ve)-.25 G(ls)
+.15 E .2(under ten are considered generally \231useful;\232 log le)117
+628 R -.15(ve)-.25 G .201(ls abo).15 F .501 -.15(ve 6)-.15 H 2.701(4a)
+.15 G .201(re reserv)-2.701 F .201(ed for deb)-.15 F .201(ugging pur)-.2
+F(-)-.2 E 2.5(poses. Le)117 640 R -.15(ve)-.25 G
+(ls from 11\25564 are reserv).15 E(ed for v)-.15 E
+(erbose information that some sites might w)-.15 E(ant.)-.1 E 2.5(Ac)142
+656.2 S(omplete description of the log le)-2.5 E -.15(ve)-.25 G
+(ls is gi).15 E -.15(ve)-.25 G 2.5(ni).15 G 2.5(ns)-2.5 G(ection 4.6.)
+-2.5 E .32 LW 76 674.8 72 674.8 DL 80 674.8 76 674.8 DL 84 674.8 80
+674.8 DL 88 674.8 84 674.8 DL 92 674.8 88 674.8 DL 96 674.8 92 674.8 DL
+100 674.8 96 674.8 DL 104 674.8 100 674.8 DL 108 674.8 104 674.8 DL 112
+674.8 108 674.8 DL 116 674.8 112 674.8 DL 120 674.8 116 674.8 DL 124
+674.8 120 674.8 DL 128 674.8 124 674.8 DL 132 674.8 128 674.8 DL 136
+674.8 132 674.8 DL 140 674.8 136 674.8 DL 144 674.8 140 674.8 DL 148
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+-.15 F .022(creating a ne)117 541.8 R 2.522(wq)-.25 G 2.522(ueue. The)
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+-.15(ve s)-.25 H(ubconscious.).15 E F0 2.5(2.9. Special)87 357 R
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+(ywhere during processing, this header will cause error messages to go to)
+-.15 F(the listed addresses.)117 449.4 Q
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+E(ently-T)-.18 E(o:)-.92 E F1 .044
+(RFC 822 requires at least one recipient \214eld \(T)142 558 R .045
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+R F2(sendmail)3.062 E F1 .562(will adjust the header)3.062 F .085
+(based on the \231NoRecipientAction\232 option.)117 582 R .085
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+-2.5 E(The Apparently-T)142 622.2 Q
+(o: header is non-standard and is deprecated.)-.8 E F0 2.5(2.9.3. Pr)102
+646.2 R(ecedence)-.18 E F1 .425(The Precedence: header can be used as a crude control of message priority)
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+(SMM:08-19)195.86 E 2.5(2.10. IDENT)87 96 R(Pr)2.5 E(otocol Support)-.18
+E/F1 10/Times-Italic@0 SF(Sendmail)127 112.2 Q/F2 10/Times-Roman@0 SF
+1.835(supports the IDENT protocol as de\214ned in RFC 1413.)4.335 F
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+(he originating system to)-2.79 F .469(include the o)102 136.2 R .469(wner of a particular TCP connection in the audit trail it is in no sense perfect; a deter)
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+(ger can easily spoof the IDENT protocol.)-.18 F 1.294(The follo)6.294 F
+1.294(wing description is e)-.25 F 1.294(xcerpted from)-.15 F(RFC 1413:)
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+192.6 R(orth)-.1 E 2.505(ya)-.05 G 2.505(st)-2.505 G .005(he host pro)
+-2.505 F .005(viding it OR)-.15 F .273(the or)127 204.6 R -.05(ga)-.18 G
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+(ving this protocol return an)-.2 F 3.486(yi)-.15 G .986
+(denti\214er the user w)-3.486 F 3.486(ants. Lik)-.1 F(e-)-.1 E 1.441(wise, if the host has been compromised the information returned may be completely erro-)
+127 228.6 R(neous and misleading.)127 240.6 Q .521(The Identi\214cation Protocol is not intended as an authorization or access control protocol.)
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+-.15 F(At)6.037 E -.1(wo)127 280.8 S(rst, it can pro).1 E
+(vide misleading, incorrect, or maliciously incorrect information.)-.15
+E 1.006(The use of the information returned by this protocol for other than auditing is strongly dis-)
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+-.1 E(.)-.65 E 1.778(An Identi\214cation serv)127 349.2 R 1.778
+(er may re)-.15 F -.15(ve)-.25 G 1.778
+(al information about users, entities, objects or processes).15 F .337
+(which might normally be considered pri)127 361.2 R -.25(va)-.25 G 2.836
+(te. An).25 F .336(Identi\214cation serv)2.836 F .336(er pro)-.15 F .336
+(vides service which)-.15 F .806
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+(vided by some phone companies and man)-.15 F 3.306(yo)-.15 G(f)-3.306 E
+1.398(the same pri)127 385.2 R -.25(va)-.25 G 1.698 -.15(cy c).25 H
+1.398(onsiderations and ar).15 F 1.398
+(guments that apply to the CallerID service apply to)-.18 F 3.545
+(Identi\214cation. If)127 397.2 R 1.045(you w)3.545 F(ouldn')-.1 E 3.545
+(tr)-.18 G 1.045(un a "\214nger" serv)-3.545 F 1.046(er due to pri)-.15
+F -.25(va)-.25 G 1.346 -.15(cy c).25 H 1.046(onsiderations you may).15 F
+(not w)127 409.2 Q(ant to run this protocol.)-.1 E .377
+(In some cases your system may not w)102 425.4 R .377
+(ork properly with IDENT support due to a b)-.1 F .376(ug in the TCP/IP)
+-.2 F 3.675(implementation. The)102 437.4 R 1.175(symptoms will be that for some hosts the SMTP connection will be closed)
+3.675 F .566(almost immediately)102 449.4 R 5.566(.I)-.65 G 3.066(ft)
+-5.566 G .565(his is true or if you do not w)-3.066 F .565
+(ant to use IDENT)-.1 F 3.065(,y)-.74 G .565(ou should set the IDENT)
+-3.065 F(timeout to zero; this will disable the IDENT protocol.)102
+461.4 Q F0 2.5(3. ARGUMENTS)72 485.4 R F2 .017(The complete list of ar)
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+537.6 R(Inter)2.5 E -.1(va)-.1 G(l).1 E F2 .455(The amount of time between forking a process to run through the queue is de\214ned by the)
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+(you run with deli)2.675 F -.15(ve)-.25 G .175(ry mode set to).15 F F0
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+-.18 F -.25(eva)102 577.8 S .207(nt when a host that w).25 F .207(as do)
+-.1 F .207(wn comes back up.)-.25 F .206(If you run in)5.207 F F0(q)
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+(ly short,).15 F 1.039(since it de\214nes the maximum amount of time that a message may sit in the queue.)
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+(\215ag may be combined)2.569 F(in one call:)102 694.2 Q
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+(An alternati)127 96 R .592 -.15(ve a)-.25 H .292(pproach is to in).15 F
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+-.25 E(cing the Queue)-.18 E F1 .04(In some cases you may \214nd that the queue has gotten clogged for some reason.)
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+-.1 G .021(inutes for this run only; the equi)-2.52 F -.25(va)-.25 G
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+(.)-.65 E F3(Sendmail)127 198.8 Q F1(gi)2.679 E -.15(ve)-.25 G 2.679(su)
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+-.25 F(this \214le.)102 383.6 Q F0 2.5(3.8. T)87 407.6 R
+(esting Con\214guration Files)-.92 E F1 .643(When you b)127 423.8 R .644
+(uild a con\214guration table, you can do a certain amount of testing using the \231test)
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+468.2 R .448(ould read the con\214guration \214le \231test.cf\232 and enter test mode.)
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+F F3(addr)3.007 E(ess)-.37 E F1 .507(is an address to apply the set to.)
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+(ws you the steps it tak)-.25 F .794(es as it proceeds, \214nally sho)
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+-3.331 F -.15(Fo)5.832 G(r).15 E -.15(ex)102 548.6 S(ample:).15 E
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+F(ruleset three, follo)102 593 Q
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+.15 E(sendmail \255bt \255d21.99)142 637.4 Q .689
+(turns on an incredible amount of information; a single w)102 653.6 R
+.688(ord address is probably going to print out)-.1 F(se)102 665.6 Q
+-.15(ve)-.25 G(ral pages w).15 E(orth of information.)-.1 E .32 LW 76
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+(arned that internally)-.1 F(,)-.65 E/F2 10/Times-Italic@0 SF(sendmail)
+2.575 E F1 .075(applies ruleset 3 to all addresses.)2.575 F .075
+(In test mode)5.075 F(you will ha)102 108 Q .3 -.15(ve t)-.2 H 2.5(od)
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+-.15(ve t)-.2 H .328(he indicated).15 F F2(value)2.828 E F1 5.328(.T)C
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+(use the)115.5 205.2 Q F0($&)2.5 E F2(x)A F1(syntax.)2.5 E 5<832e>107
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+(uleset dumps the contents of the indicated ruleset.)-1.666 E 5<83ad>107
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+(lent to the command-line \215ag.).25 E F0 2.5(3.9. P)87 265.2 R
+(ersistent Host Status Inf)-.2 E(ormation)-.25 E F1(When)127 281.4 Q F0
+(HostStatusDir)2.569 E(ectory)-.18 E F1 .069
+(is enabled, information about the status of hosts is maintained on)
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+(ferent instantiations of)-.25 F F2(sendmail)2.749 E F1 5.249(.T)C .248
+(he status of the last con-)-5.249 F
+(nection with each remote host may be vie)102 305.4 Q
+(wed with the command:)-.25 E(sendmail \255bh)142 321.6 Q
+(This information may be \215ushed with the command:)102 337.8 Q
+(sendmail \255bH)142 354 Q 1.534(Flushing the information pre)102 370.2
+R -.15(ve)-.25 G 1.534(nts ne).15 F(w)-.25 E F2(sendmail)4.034 E F1
+1.535(processes from loading it, b)4.035 F 1.535(ut does not pre)-.2 F
+-.15(ve)-.25 G(nt).15 E -.15(ex)102 382.2 S
+(isting processes from using the status information that the).15 E 2.5
+(ya)-.15 G(lready ha)-2.5 E -.15(ve)-.2 G(.).15 E F0 2.5(4. TUNING)72
+406.2 R F1 1.922
+(There are a number of con\214guration parameters you may w)112 422.4 R
+1.922(ant to change, depending on the)-.1 F .366
+(requirements of your site.)87 434.4 R .367
+(Most of these are set using an option in the con\214guration \214le.)
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+(the line \231O T)87 446.4 Q
+(imeout.queuereturn=5d\232 sets option \231T)-.35 E
+(imeout.queuereturn\232 to the v)-.35 E(alue \2315d\232 \(\214v)-.25 E
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+1.088(encing a lar)87 486.6 R 1.088(ge number of small messages, man)
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+(ecipients, may \214nd)-3.587 F(that the)87 498.6 Q 2.5(yn)-.15 G
+(eed to adjust the parameters dealing with queue priorities.)-2.5 E .523
+(All v)112 514.8 R .523(ersions of)-.15 F F2(sendmail)3.023 E F1 .524
+(prior to 8.7 had single character option names.)3.023 F .524
+(As of 8.7, options ha)5.524 F -.15(ve)-.2 G 1.216
+(long \(multi-character names\).)87 526.8 R 1.216
+(Although old short names are still accepted, most ne)6.216 F 3.715(wo)
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+(hort equi).15 E -.25(va)-.25 G(lents.).25 E .802
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+(All time interv)127 607.2 R .583(als are set using a scaled syntax.)
+-.25 F -.15(Fo)5.583 G 3.083(re).15 G .583
+(xample, \23110m\232 represents ten minutes,)-3.233 F
+(whereas \2312h30m\232 represents tw)102 619.2 Q 2.5(oa)-.1 G
+(nd a half hours.)-2.5 E(The full set of scales is:)5 E 16.11(ss)142
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+(l).1 E/F1 10/Times-Roman@0 SF .18(The ar)142 112.2 R .18(gument to the)
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+.18(ften a sub-daemon will run the queue.)-2.68 F .18(This is)5.18 F
+.968(typically set to between \214fteen minutes and one hour)117 124.2 R
+5.968(.R)-.55 G .967(FC 1123 section 5.3.1.1 recommends)-5.968 F
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+160.2 R(timeouts)2.5 E F1 -.35(Ti)142 176.4 S 1.052(meouts all ha).35 F
+1.352 -.15(ve o)-.2 H 1.052(ption names \231T).15 F(imeout.)-.35 E/F2 10
+/Times-Italic@0 SF(suboption)A F1 3.552(\232. The)B(recognized)3.552 E
+F2(suboption)3.553 E F1 1.053(s, their)B(def)117 188.4 Q(ault v)-.1 E
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+.161(time to w)2.661 F .161(ait for an SMTP connection to open \(the)-.1
+F F2(connect)2.66 E F1 .16(\(2\) system call\))B 1.153
+([0, unspeci\214ed].)189 216.6 R 1.153(If zero, uses the k)6.153 F 1.153
+(ernel def)-.1 F 3.653(ault. In)-.1 F 1.153(no case can this option)
+3.653 F -.15(ex)189 228.6 S .519(tend the timeout longer than the k).15
+F .518(ernel pro)-.1 F .518(vides, b)-.15 F .518(ut it can shorten it.)
+-.2 F(This)5.518 E .579(is to get around k)189 240.6 R .579
+(ernels that pro)-.1 F .579
+(vide an absurdly long connection timeout \(90)-.15 F
+(minutes in one case\).)189 252.6 Q 35.62(iconnect The)117 268.8 R .311
+(same as)2.811 F F2(connect,)2.811 E F1 -.15(ex)2.811 G .311
+(cept it applies only to the initial attempt to connect to).15 F 2.75
+(ah)189 280.8 S .25(ost for a gi)-2.75 F -.15(ve)-.25 G 2.75(nm).15 G
+.25(essage [0, unspeci\214ed].)-2.75 F .25
+(The concept is that this should be)5.25 F -.15(ve)189 292.8 S .767
+(ry short \(a fe).15 F 3.267(ws)-.25 G .767
+(econds\); hosts that are well connected and responsi)-3.267 F 1.066
+-.15(ve w)-.25 H(ill).15 E .026(thus be serviced immediately)189 304.8 R
+5.026(.H)-.65 G .026(osts that are slo)-5.026 F 2.526(ww)-.25 G .026
+(ill not hold up other deli)-2.526 F(v-)-.25 E
+(eries in the initial deli)189 316.8 Q -.15(ve)-.25 G(ry attempt.).15 E
+46.16(initial The)117 333 R -.1(wa)2.5 G
+(it for the initial 220 greeting message [5m, 5m].).1 E 52.28(helo The)
+117 349.2 R -.1(wa)4.227 G 1.727
+(it for a reply from a HELO or EHLO command [5m, unspeci\214ed].).1 F .1
+(This may require a host name lookup, so \214v)189 361.2 R 2.6(em)-.15 G
+.1(inutes is probably a reasonable)-2.6 F(minimum.)189 373.2 Q 46.72
+(mail\207 The)117 389.4 R -.1(wa)2.5 G
+(it for a reply from a MAIL command [10m, 5m].).1 E 48.95(rcpt\207 The)
+117 405.6 R -.1(wa)3.482 G .982
+(it for a reply from a RCPT command [1h, 5m].).1 F .981
+(This should be long)5.981 F 1.556
+(because it could be pointing at a list that tak)189 417.6 R 1.556
+(es a long time to e)-.1 F 1.556(xpand \(see)-.15 F(belo)189 429.6 Q
+(w\).)-.25 E 34.5(datainit\207 The)117 445.8 R -.1(wa)2.5 G
+(it for a reply from a D).1 E -1.21 -1.11(AT A)-.4 H(command [5m, 2m].)
+3.61 E 25.62(datablock\207 The)117 462 R -.1(wa)2.696 G .196
+(it for reading a data block \(that is, the body of the message\).).1 F
+.196([1h, 3m].)5.196 F .621(This should be long because it also applies to programs piping input to)
+189 474 R F2(send-)3.121 E(mail)189 486 Q F1(which ha)2.5 E .3 -.15
+(ve n)-.2 H 2.5(og).15 G(uarantee of promptness.)-2.5 E 30.06
+(data\214nal\207 The)117 502.2 R -.1(wa)2.806 G .306
+(it for a reply from the dot terminating a message.).1 F .306
+([1h, 10m].)5.306 F .306(If this is)5.306 F .883
+(shorter than the time actually needed for the recei)189 514.2 R -.15
+(ve)-.25 G 3.384(rt).15 G 3.384(od)-3.384 G(eli)-3.384 E -.15(ve)-.25 G
+3.384(rt).15 G .884(he message,)-3.384 F(duplicates will be generated.)
+189 526.2 Q(This is discussed in RFC 1047.)5 E 55.06(rset The)117 542.4
+R -.1(wa)2.5 G(it for a reply from a RSET command [5m, unspeci\214ed].)
+.1 E 53.94(quit The)117 558.6 R -.1(wa)2.5 G(it for a reply from a Q).1
+E(UIT command [2m, unspeci\214ed].)-.1 E 50.61(misc The)117 574.8 R -.1
+(wa)2.761 G .261(it for a reply from miscellaneous \(b).1 F .261
+(ut short\) commands such as NOOP)-.2 F
+(\(no-operation\) and VERB \(go into v)189 586.8 Q(erbose mode\).)-.15 E
+([2m, unspeci\214ed].)5 E 25.06(command\207 In)117 603 R(serv)2.5 E
+(er SMTP)-.15 E 2.5(,t)-1.11 G(he time to w)-2.5 E
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+(timeout w)2.5 E(aiting for a reply to an IDENT query [30s)-.1 E/F3 7
+/Times-Roman@0 SF(12)-4 I F1 2.5(,u)4 K(nspeci\214ed].)-2.5 E -.15(Fo)
+117 637.4 S 4.608(rc).15 G 2.108
+(ompatibility with old con\214guration \214les, if no)-4.608 F F2
+(suboption)4.609 E F1 2.109(is speci\214ed, all the timeouts)4.609 F
+(mark)117 649.4 Q(ed with \207 are set to the indicated v)-.1 E(alue.)
+-.25 E(Man)142 665.6 Q 2.501(yo)-.15 G 2.501(ft)-2.501 G .001
+(he RFC 1123 minimum v)-2.501 F .001(alues may well be too short.)-.25 F
+F2(Sendmail)5 E F1 -.1(wa)2.5 G 2.5(sd).1 G(esigned to)-2.5 E .711
+(the RFC 822 protocols, which did not specify read timeouts; hence, v)
+117 677.6 R .712(ersions of)-.15 F F2(sendmail)3.212 E F1(prior)3.212 E
+.32 LW 76 687.2 72 687.2 DL 80 687.2 76 687.2 DL 84 687.2 80 687.2 DL 88
+687.2 84 687.2 DL 92 687.2 88 687.2 DL 96 687.2 92 687.2 DL 100 687.2 96
+687.2 DL 104 687.2 100 687.2 DL 108 687.2 104 687.2 DL 112 687.2 108
+687.2 DL 116 687.2 112 687.2 DL 120 687.2 116 687.2 DL 124 687.2 120
+687.2 DL 128 687.2 124 687.2 DL 132 687.2 128 687.2 DL 136 687.2 132
+687.2 DL 140 687.2 136 687.2 DL 144 687.2 140 687.2 DL 148 687.2 144
+687.2 DL 152 687.2 148 687.2 DL 156 687.2 152 687.2 DL 160 687.2 156
+687.2 DL 164 687.2 160 687.2 DL 168 687.2 164 687.2 DL 172 687.2 168
+687.2 DL 176 687.2 172 687.2 DL 180 687.2 176 687.2 DL 184 687.2 180
+687.2 DL 188 687.2 184 687.2 DL 192 687.2 188 687.2 DL 196 687.2 192
+687.2 DL 200 687.2 196 687.2 DL 204 687.2 200 687.2 DL 208 687.2 204
+687.2 DL 212 687.2 208 687.2 DL 216 687.2 212 687.2 DL/F4 5
+/Times-Roman@0 SF(12)93.6 697.6 Q/F5 8/Times-Roman@0 SF
+(On some systems the def)3.2 I(ault is zero to turn the protocol of)-.08
+E 2(fe)-.2 G(ntirely)-2 E(.)-.52 E EP
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+/F0 10/Times-Bold@0 SF 193.36(SMM:08-24 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF .865
+(to v)117 96 R .865
+(ersion 8.1 did not guarantee to reply to messages promptly)-.15 F 5.864
+(.I)-.65 G 3.364(np)-5.864 G(articular)-3.364 E 3.364(,a\231)-.4 G .864
+(RCPT\232 com-)-3.364 F .06(mand specifying a mailing list will e)117
+108 R .06(xpand and v)-.15 F .061(erify the entire list; a lar)-.15 F
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+(.I)4 K .436(recommend a one hour timeout \212 since a commu-)-2.5 F
+1.366(nications f)117 134 R 1.366(ailure during the RCPT phase is rare, a long timeout is not onerous and may ulti-)
+-.1 F(mately help reduce netw)117 146 Q
+(ork load and duplicated messages.)-.1 E -.15(Fo)142 162.2 S 2.5(re).15
+G(xample, the lines:)-2.65 E 2.5(OT)157 178.4 S(imeout.command=25m)-2.85
+E 2.5(OT)157 190.4 S(imeout.datablock=3h)-2.85 E .343(sets the serv)117
+206.6 R .344(er SMTP command timeout to 25 minutes and the input data block timeout to three)
+-.15 F(hours.)117 218.6 Q F0 2.5(4.1.3. Message)102 242.6 R(timeouts)2.5
+E F1 .238(After sitting in the queue for a fe)142 258.8 R 2.737(wd)-.25
+G .237(ays, a message will time out.)-2.737 F .237
+(This is to insure that at)5.237 F .567(least the sender is a)117 270.8
+R -.1(wa)-.15 G .568(re of the inability to send a message.).1 F .568
+(The timeout is typically set to \214v)5.568 F(e)-.15 E 2.6(days. It)117
+282.8 R .1(is sometimes considered con)2.6 F -.15(ve)-.4 G .099
+(nient to also send a w).15 F .099(arning message if the message is in)
+-.1 F .175(the queue longer than a fe)117 294.8 R 2.675(wh)-.25 G .175
+(ours \(assuming you normally ha)-2.675 F .476 -.15(ve g)-.2 H .176
+(ood connecti).15 F .176(vity; if your mes-)-.25 F .645
+(sages normally took se)117 306.8 R -.15(ve)-.25 G .645
+(ral hours to send you w).15 F(ouldn')-.1 E 3.145(tw)-.18 G .645
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+-3.145 E .057(an unusual e)117 318.8 R -.15(ve)-.25 G 2.557(nt\). These)
+.15 F .057(timeouts are set using the)2.557 F F0 -.18(Ti)2.558 G
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+G(meout.queue-).18 E(war)117 330.8 Q(n)-.15 E F1
+(options in the con\214guration \214le \(pre)2.5 E
+(viously both were set using the)-.25 E F0(T)2.5 E F1(option\).)2.5 E
+.106(Since these options are global, and since you can not kno)142 347 R
+(w)-.25 E/F3 10/Times-Italic@0 SF 2.606(ap)2.606 G(riori)-2.606 E F1(ho)
+2.606 E 2.606(wl)-.25 G .106(ong another host)-2.606 F .475
+(outside your domain will be do)117 359 R .475(wn, a \214v)-.25 F 2.975
+(ed)-.15 G .475(ay timeout is recommended.)-2.975 F .476(This allo)5.476
+F .476(ws a recipient)-.25 F 1.58(to \214x the problem e)117 371 R -.15
+(ve)-.25 G 4.08(ni).15 G 4.08(fi)-4.08 G 4.08(to)-4.08 G 1.579
+(ccurs at the be)-4.08 F 1.579(ginning of a long week)-.15 F 4.079
+(end. RFC)-.1 F 1.579(1123 section)4.079 F
+(5.3.1.1 says that this parameter should be `)117 383 Q
+(`at least 4\2555 days')-.74 E('.)-.74 E(The)142 399.2 Q F0 -.18(Ti)
+2.922 G(meout.queuewar).18 E(n)-.15 E F1 -.25(va)2.922 G .422
+(lue can be piggyback).25 F .422(ed on the)-.1 F F0(T)2.922 E F1 .423
+(option by indicating a time)2.922 F .846(after which a w)117 411.2 R
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+(imeouts are separated by a slash.)-3.346 F -.15(Fo)5.845 G(r).15 E -.15
+(ex)117 423.2 S(ample, the line).15 E -.4(OT)157 439.4 S(5d/4h).4 E .971
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+(arning message will be sent after four hours.)-.1 F(This)5.972 E
+(should be lar)117 467.6 Q(ge enough that the message will ha)-.18 E .3
+-.15(ve b)-.2 H(een tried se).15 E -.15(ve)-.25 G(ral times.).15 E F0
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+(By setting the)127 507.8 R F0 -.25(Fo)3.349 G(rkEachJ).25 E(ob)-.15 E
+F1(\()3.349 E F0(Y)A F1 3.348(\)o)C(ption,)-3.348 E F3(sendmail)3.348 E
+F1 .848(will fork before each indi)3.348 F .848(vidual message)-.25 F
+.292(while running the queue.)102 519.8 R .293(This will pre)5.293 F
+-.15(ve)-.25 G(nt).15 E F3(sendmail)2.793 E F1 .293(from consuming lar)
+2.793 F .293(ge amounts of memory)-.18 F 2.793(,s)-.65 G(o)-2.793 E 1.11
+(it may be useful in memory-poor en)102 531.8 R 3.61(vironments. Ho)-.4
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+F0 -.25(Fo)3.61 G(rkEachJ).25 E(ob)-.15 E F1 1.11(option is not set,)
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+(eep track of hosts that are do)-.1 F .085
+(wn during a queue run, which can impro)-.25 F .385 -.15(ve p)-.15 H
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+-.25(Fo)2.5 G(rkEachJ).25 E(ob)-.15 E F1(option is set,)2.5 E F3
+(sendmail)2.5 E F1(can not use connection caching.)2.5 E F0 2.5
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+-.15 F .286(size \(in bytes\) of)102 624.2 R .286(fset by the message class \(which is determined from the Precedence: header\) times)
+-.25 F .343(the \231w)102 636.2 R .343(ork class f)-.1 F .343
+(actor\232 and the number of recipients times the \231w)-.1 F .342
+(ork recipient f)-.1 F(actor)-.1 E 4.242 -.7(.\232 T)-.55 H .342
+(he priority).7 F .073(is used to order the queue.)102 648.2 R .073(Higher numbers for the priority mean that the message will be processed)
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+669.8 DL 80 669.8 76 669.8 DL 84 669.8 80 669.8 DL 88 669.8 84 669.8 DL
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+669.8 124 669.8 DL 132 669.8 128 669.8 DL 136 669.8 132 669.8 DL 140
+669.8 136 669.8 DL 144 669.8 140 669.8 DL 148 669.8 144 669.8 DL 152
+669.8 148 669.8 DL 156 669.8 152 669.8 DL 160 669.8 156 669.8 DL 164
+669.8 160 669.8 DL 168 669.8 164 669.8 DL 172 669.8 168 669.8 DL 176
+669.8 172 669.8 DL 180 669.8 176 669.8 DL 184 669.8 180 669.8 DL 188
+669.8 184 669.8 DL 192 669.8 188 669.8 DL 196 669.8 192 669.8 DL 200
+669.8 196 669.8 DL 204 669.8 200 669.8 DL 208 669.8 204 669.8 DL 212
+669.8 208 669.8 DL 216 669.8 212 669.8 DL/F4 5/Times-Roman@0 SF(13)93.6
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+(eri\214cation includes looking up e)-.12 F -.12(ve)-.2 G .212
+(ry address with the name serv).12 F .212(er; this in)-.12 F -.16(vo)
+-.32 G(lv).16 E .212(es netw)-.12 F .212
+(ork delays, and can in some cases)-.08 F(can be considerable.)72 693 Q
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+(SMM:08-25)195.86 E/F1 10/Times-Roman@0 SF .329
+(The message size is included so that lar)127 96 R .328
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+-.25 F .008(in their message; the v)102 120 R .008
+(alue of this \214eld is look)-.25 F .007(ed up in the)-.1 F F0(P)2.507
+E F1 .007(lines of the con\214guration \214le.)2.507 F .007(Since the)
+5.007 F 1.966(number of recipients af)102 132 R 1.967(fects the amount of load a message presents to the system, this is also)
+-.25 F(included into the priority)102 144 Q(.)-.65 E .53
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+(.T)-.65 G(he)-5.942 E 3.442(yd)-.15 G(ef)-3.442 E .942
+(ault to 30000 \(for the recipient f)-.1 F .943(actor\) and)-.1 F
+(1800 \(for the class f)102 184.2 Q 2.5(actor\). The)-.1 F
+(initial priority is:)2.5 E/F2 10/Times-Italic@0 SF(pri)168.495 202.2 Q
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+-.25 F(wer)-.25 E(priority)102 232.2 Q(.\))-.65 E 1.519(The priority of a job can also be adjusted each time it is processed \(that is, each time an)
+127 248.4 R .236(attempt is made to deli)102 260.4 R -.15(ve)-.25 G
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+(oi)-2.866 G 2.867(tn)-2.866 G .367
+(ormally decreases the precedence of the job, on the grounds that jobs)
+-2.867 F .138(that ha)102 284.4 R .437 -.15(ve f)-.2 H .137(ailed man)
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+F .137(ain in the future.)-.05 F(The)5.137 E F0(RetryF)2.637 E(actor)
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+.101(can be ask)2.601 F .101(ed to queue \(b)-.1 F .101(ut not deli)-.2
+F -.15(ve)-.25 G .101(r\) mail if the system load a).15 F -.15(ve)-.2 G
+.102(rage gets too high).15 F .484(using the)102 348.6 R F0(QueueLA)
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+.483(the load a)2.983 F -.15(ve)-.2 G .483(rage e).15 F .483
+(xceeds the v)-.15 F .483(alue of the)-.25 F F0(QueueLA)2.983 E F1
+(option,)2.983 E .531(the deli)102 360.6 R -.15(ve)-.25 G .531
+(ry mode is set to).15 F F0(q)3.032 E F1 .532(\(queue only\) if the)
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+(\)o)C .532(ption di)-3.032 F .532(vided by the dif)-.25 F(ference)-.25
+E .005(in the current load a)102 372.6 R -.15(ve)-.2 G .004
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+DL F1(1)349.625 415.01 Q(The)102 431.27 Q F0(QueueF)2.616 E(actor)-.25 E
+F1 .116(option def)2.616 F .116
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+(rage is w).15 F .116(orth 600000 priority)-.1 F
+(points \(as described abo)102 443.27 Q -.15(ve)-.15 G(\).).15 E -.15
+(Fo)127 459.47 S 3.894(rd).15 G 1.394(rastic cases, the)-3.894 F F0
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+(ption de\214nes a load a)-3.894 F -.15(ve)-.2 G 1.393(rage at which).15
+F F2(sendmail)3.893 E F1(will)3.893 E .689(refuse to accept netw)102
+471.47 R .689(ork connections.)-.1 F .689
+(Locally generated mail \(including incoming UUCP mail\) is)5.689 F
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+(ry Mode).1 E F1 .254(There are a number of deli)127 523.67 R -.15(ve)
+-.25 G .253(ry modes that).15 F F2(sendmail)2.753 E F1 .253
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+(he user')-3.671 F 3.671(sh)-.55 G 1.17(ome directory is searched.)
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+F 3.19(yb)-.15 G(it)-3.19 E(should be set\).)102 525.6 Q
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+(designed to be reasonably easy to parse, since this is done e)87 381.6
+R -.15(ve)-.25 G 1.076(ry time).15 F F2(sendmail)3.576 E F1 1.076
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+.466(The core of address parsing are the re)127 486 R .466
+(writing rules.)-.25 F .465(These are an ordered production system.)
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+.19(writing rules looking for a match on the left hand side \(LHS\) of)
+-.25 F(the rule.)102 510 Q(When a rule matches, the address is replaced by the right hand side \(RHS\) of the rule.)
+5 E .922(There are se)127 526.2 R -.15(ve)-.25 G .922(ral sets of re).15
+F .921(writing rules.)-.25 F .921(Some of the re)5.921 F .921
+(writing sets are used internally and)-.25 F .359(must ha)102 538.2 R
+.659 -.15(ve s)-.2 H .359(peci\214c semantics.).15 F .359(Other re)5.359
+F .359(writing sets do not ha)-.25 F .659 -.15(ve s)-.2 H .36
+(peci\214cally assigned semantics, and).15 F
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+(Sets the current ruleset being collected to)102 598.8 R F2(n)2.749 E F1
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+(gin a ruleset more than once it appends to the)-.15 F
+(old de\214nition.)102 610.8 Q F0(R)142 627 Q F2(lhs rhs comments)A F1
+1.185(The \214elds must be separated by at least one tab character; there may be embedded spaces in the)
+102 643.2 R 2.595(\214elds. The)102 655.2 R F2(lhs)2.595 E F1 .095
+(is a pattern that is applied to the input.)2.595 F .095
+(If it matches, the input is re)5.095 F .094(written to the)-.25 F F2
+(rhs)2.594 E F1(.)A(The)102 667.2 Q F2(comments)2.5 E F1(are ignored.)
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+5.755 E .284(sions of the form)102 695.4 R F0($&)2.784 E F2(x)A F1 .284
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+(what less general algorithm.)-.25 F .283(This for)5.283 F
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+(left hand side)2.5 E/F1 10/Times-Roman@0 SF 2.77
+(The left hand side of re)142 112.2 R 2.771
+(writing rules contains a pattern.)-.25 F 2.771(Normal w)7.771 F 2.771
+(ords are simply)-.1 F(matched directly)117 124.2 Q 5(.M)-.65 G
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+5 E F0($*)157 140.4 Q F1(Match zero or more tok)10.14 E(ens)-.1 E F0($+)
+157 152.4 Q F1(Match one or more tok)9.44 E(ens)-.1 E F0<24ad>157 164.4
+Q F1(Match e)9.44 E(xactly one tok)-.15 E(en)-.1 E F0($=)157 176.4 Q/F2
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+(ya)-.15 G .132(re assigned to the symbol)-2.632 F F0($)2.632 E F2(n)A
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+(A:eric)-.92 E(the rule will match, and the v)117 281.4 Q
+(alues passed to the RHS will be:)-.25 E 7.5($1 UCB)157 297.6 R(ARP)-.35
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+(When the left hand side of a re)142 382.2 R .649
+(writing rule matches, the input is deleted and replaced by)-.25 F 1.036
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+(Substitute inde\214nite tok)40.55 E(en)-.1 E F2(n)2.5 E F1(from LHS)2.5
+E F0($[)157 434.4 Q F2(name)A F0($])A F1(Canonicalize)12.23 E F2(name)
+2.5 E F0($\()157 446.4 Q F2(map k)A -.3(ey)-.1 G F0($@)2.8 E F2(ar)A
+(guments)-.37 E F0($:)2.5 E F2(default)A F0($\))2.5 E F1(Generalized k)
+207.55 458.4 Q -.15(ey)-.1 G(ed mapping function).15 E F0($>)157 470.4 Q
+F2(n)A F1(\231Call\232 ruleset)34.85 E F2(n)2.5 E F0($#)157 482.4 Q F2
+(mailer)A F1(Resolv)14.44 E 2.5(et)-.15 G(o)-2.5 E F2(mailer)2.5 E F0
+($@)157 494.4 Q F2(host)A F1(Specify)19.58 E F2(host)2.5 E F0($:)157
+506.4 Q F2(user)A F1(Specify)25 E F2(user)2.5 E F1(The)142 526.8 Q F0($)
+3.137 E F2(n)A F1 .637(syntax substitutes the corresponding v)3.137 F
+.637(alue from a)-.25 F F0($+)3.137 E F1(,)A F0<24ad>3.137 E F1(,)A F0
+($*)3.137 E F1(,)A F0($=)3.137 E F1 3.137(,o)C(r)-3.137 E F0($~)3.137 E
+F1 .636(match on)3.136 F(the LHS.)117 538.8 Q(It may be used an)5 E
+(ywhere.)-.15 E 2.705(Ah)142 555 S .205(ost name enclosed between)-2.705
+F F0($[)2.705 E F1(and)2.705 E F0($])2.706 E F1 .206(is look)2.706 F
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+(.F)4 K 1.683(or e)-6.833 F 1.683
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+(Sendmail)7.707 E F1 2.707(recognizes it')5.207 F(s)-.55 E
+(numeric IP address without calling the name serv)117 593 Q
+(er and replaces it with it')-.15 E 2.5(sc)-.55 G(anonical name.)-2.5 E
+(The)142 609.2 Q F0($\()3.004 E F1(...)3.004 E F0($\))5.504 E F1 .503(syntax is a more general form of lookup; it uses a named map instead of an)
+3.003 F .809(implicit map.)117 621.2 R .809
+(If no lookup is found, the indicated)5.809 F F2(default)3.309 E F1 .81
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+(and no lookup matches, the v)117 633.2 R .776(alue is left unchanged.)
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+(are passed to the map for)3.275 F(possible use.)117 645.2 Q(The)142
+661.4 Q F0($>)2.619 E F2(n)A F1 .119(syntax causes the remainder of the line to be substituted as usual and then passed)
+2.619 F .587(as the ar)117 673.4 R .587(gument to ruleset)-.18 F F2(n)
+3.087 E F1 5.587(.T)C .587(he \214nal v)-5.587 F .586(alue of ruleset)
+-.25 F F2(n)3.086 E F1 .586(then becomes the substitution for this)3.086
+F .32 LW 76 683 72 683 DL 80 683 76 683 DL 84 683 80 683 DL 88 683 84
+683 DL 92 683 88 683 DL 96 683 92 683 DL 100 683 96 683 DL 104 683 100
+683 DL 108 683 104 683 DL 112 683 108 683 DL 116 683 112 683 DL 120 683
+116 683 DL 124 683 120 683 DL 128 683 124 683 DL 132 683 128 683 DL 136
+683 132 683 DL 140 683 136 683 DL 144 683 140 683 DL 148 683 144 683 DL
+152 683 148 683 DL 156 683 152 683 DL 160 683 156 683 DL 164 683 160 683
+DL 168 683 164 683 DL 172 683 168 683 DL 176 683 172 683 DL 180 683 176
+683 DL 184 683 180 683 DL 188 683 184 683 DL 192 683 188 683 DL 196 683
+192 683 DL 200 683 196 683 DL 204 683 200 683 DL 208 683 204 683 DL 212
+683 208 683 DL 216 683 212 683 DL/F4 5/Times-Roman@0 SF(14)93.6 693.4 Q
+/F5 8/Times-Roman@0 SF(This is actually completely equi)3.2 I -.2(va)-.2
+G(lent to $\(host).2 E/F6 8/Times-Italic@0 SF(hostname)2 E F5 2($\). In)
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+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-31)195.86 E/F1 10/Times-Roman@0 SF 3.075(rule. The)117 96 R F0
+($>)3.075 E F1 .575(syntax can only be used at the be)3.075 F .575
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+117 108 Q F0($@)2.5 E F1(or)2.5 E F0($:)2.5 E F1(.)A(The)142 124.2 Q F0
+($#)2.508 E F1 .008(syntax should)2.508 F/F2 10/Times-Italic@0 SF(only)
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+(be used in ruleset zero or a subroutine of ruleset zero.)2.508 F .007
+(It causes)5.007 F -.25(eva)117 136.2 S .684
+(luation of the ruleset to terminate immediately).25 F 3.184(,a)-.65 G
+.684(nd signals to)-3.184 F F2(sendmail)3.184 E F1 .685
+(that the address has)3.185 F(completely resolv)117 148.2 Q 2.5(ed. The)
+-.15 F(complete syntax is:)2.5 E F0($#)157 164.4 Q F2(mailer)A F0($@)2.5
+E F2(host)A F0($:)2.5 E F2(user)A F1 1.394(This speci\214es the {mailer)
+117 180.6 R 3.894(,h)-.4 G 1.394
+(ost, user} 3-tuple necessary to direct the mailer)-3.894 F 6.394(.I)
+-.55 G 3.894(ft)-6.394 G 1.394(he mailer is)-3.894 F .775
+(local the host part may be omitted)117 194.6 R/F3 7/Times-Roman@0 SF
+(15)-4 I F1 5.775(.T)4 K(he)-5.775 E F2(mailer)3.275 E F1 .774
+(must be a single w)3.274 F .774(ord, b)-.1 F .774(ut the)-.2 F F2(host)
+3.274 E F1(and)3.274 E F2(user)3.274 E F1 .252(may be multi-part.)117
+206.6 R .253(If the)5.253 F F2(mailer)2.753 E F1 .253(is the b)2.753 F
+.253(uiltin IPC mailer)-.2 F 2.753(,t)-.4 G(he)-2.753 E F2(host)2.753 E
+F1 .253(may be a colon-separated list)2.753 F .5
+(of hosts that are searched in order for the \214rst w)117 218.6 R .5
+(orking address \(e)-.1 F .5(xactly lik)-.15 F 3(eM)-.1 G 3(Xr)-3 G 3
+(ecords\). The)-3 F F2(user)117 230.6 Q F1 .036(is later re)2.536 F .036
+(written by the mailer)-.25 F .036(-speci\214c en)-.2 F -.15(ve)-.4 G
+.036(lope re).15 F .036(writing set and assigned to the)-.25 F F0($u)
+2.536 E F1(macro.)2.536 E .162
+(As a special case, if the mailer speci\214ed has the)117 242.6 R F0
+(F=@)2.662 E F1 .162
+(\215ag speci\214ed and the \214rst character of the)2.662 F F0($:)117
+254.6 Q F1 -.25(va)3.376 G .876
+(lue is \231@\232, the \231@\232 is stripped of).25 F .877
+(f, and a \215ag is set in the address descriptor that causes)-.25 F
+(sendmail to not do ruleset 5 processing.)117 266.6 Q(Normally)142 282.8
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+(ule that matches is retried, that is, the rule loops until it f)-3.252
+F 3.251(ails. A)-.1 F .751(RHS may)3.251 F 1.085(also be preceded by a)
+117 294.8 R F0($@)3.585 E F1 1.085(or a)3.585 F F0($:)3.585 E F1 1.085
+(to change this beha)3.585 F(vior)-.2 E 6.085(.A)-.55 G F0($@)-2.5 E F1
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+(pre\214x is stripped before continuing.)2.5 E(The)142 347 Q F0($@)2.5 E
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+(ything, passes that to ruleset se)-.15 F -.15(ve)-.25 G 1.256
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+(Substitution occurs in the order described, that is, parameters from the LHS are substi-)
+142 407.6 R .22(tuted, hostnames are canonicalized, \231subroutines\232 are called, and \214nally)
+117 419.6 R F0($#)2.719 E F1(,)A F0($@)2.719 E F1 2.719(,a)C(nd)-2.719 E
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+(riting sets that ha).25 F 1.823 -.15(ve s)-.2 H 1.523
+(peci\214c semantics.).15 F -.15(Fo)6.523 G 1.523
+(ur of these are related as).15 F(depicted by \214gure 1.)117 483.8 Q
+1.029(Ruleset three should turn the address into \231canonical form.)142
+500 R 6.029<9a54>-.7 G 1.029(his form should ha)-6.029 F 1.329 -.15
+(ve t)-.2 H(he).15 E(basic syntax:)117 512 Q
+(local-part@host-domain-spec)157 528.2 Q(Ruleset three is applied by)117
+544.4 Q F2(sendmail)2.5 E F1(before doing an)2.5 E(ything with an)-.15 E
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+(If no \231@\232 sign is speci\214ed, then the host-domain-spec)142
+560.6 R F2(may)2.801 E F1 .302(be appended \(box \231D\232 in Fig-)2.801
+F .578(ure 1\) from the sender address \(if the)117 572.6 R F0(C)3.077 E
+F1 .577(\215ag is set in the mailer de\214nition corresponding to the)
+3.077 F F2(sending)117 584.6 Q F1(mailer\).)2.5 E 1.021(Ruleset zero is applied after ruleset three to addresses that are going to actually specify)
+142 600.8 R 3.664(recipients. It)117 612.8 R 1.164(must resolv)3.664 F
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+(mailer de\214nitions from the con\214guration \214le.)117 624.8 R(The)
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+84 674.6 DL 92 674.6 88 674.6 DL 96 674.6 92 674.6 DL 100 674.6 96 674.6
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+674.6 124 674.6 DL 132 674.6 128 674.6 DL 136 674.6 132 674.6 DL 140
+674.6 136 674.6 DL 144 674.6 140 674.6 DL 148 674.6 144 674.6 DL 152
+674.6 148 674.6 DL 156 674.6 152 674.6 DL 160 674.6 156 674.6 DL 164
+674.6 160 674.6 DL 168 674.6 164 674.6 DL 172 674.6 168 674.6 DL 176
+674.6 172 674.6 DL 180 674.6 176 674.6 DL 184 674.6 180 674.6 DL 188
+674.6 184 674.6 DL 192 674.6 188 674.6 DL 196 674.6 192 674.6 DL 200
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+(part is not part of the user name, and is passed to the local mailer for local use.)
+72 697.8 Q EP
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+(ed address)-.15 E 187.2 146.4 162 200.4 DL(Figure 1 \212 Re)216.045
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+(ender domain addition)-2.5 E 2.5(S\212m)209.35 272.4 S(ailer)-2.5 E
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+(ailer)-2.5 E(-speci\214c recipient re)-.2 E(writing)-.25 E 77 296.4 72
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+(Ruleset four is applied to all addresses in the message.)142 332.4 R
+1.266(It is typically used to translate)6.265 F(internal to e)117 344.4
+Q(xternal form.)-.15 E .653(In addition, ruleset 5 is applied to all local addresses \(speci\214cally)
+142 360.6 R 3.152(,t)-.65 G .652(hose that resolv)-3.152 F 3.152(et)-.15
+G 3.152(oa)-3.152 G .296
+(mailer with the `F=5' \215ag set\) that do not ha)117 372.6 R .596 -.15
+(ve a)-.2 H 2.796(liases. This).15 F(allo)2.796 E .296
+(ws a last minute hook for local)-.25 F(names.)117 384.6 Q F0 2.5
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+-.25(ew e)-3.815 H 1.315(xtra rulesets are de\214ned as \231hooks\232 that can be de\214ned to get special features.)
+.1 F(The)117 436.8 Q 3.467(ya)-.15 G .968(re all named rulesets.)-3.467
+F .968(The \231check_*\232 forms all gi)5.968 F 1.268 -.15(ve a)-.25 H
+.968(ccept/reject status; f).15 F .968(alling of)-.1 F 3.468(ft)-.25 G
+(he)-3.468 E(end or returning normally is an accept, and resolving to $#error is a reject.)
+117 448.8 Q F0 2.5(5.1.4.1. check_r)117 472.8 R(elay)-.18 E F1(The)157
+489 Q/F2 10/Times-Italic@0 SF -.15(ch)2.5 G(ec).15 E(k_r)-.2 E(elay)-.37
+E F1(ruleset is called after a connection is accepted.)2.5 E
+(It is passed)5 E(client.host.name $| client.host.address)172 505.2 Q
+(where)132 521.4 Q F0($|)4.017 E F1 1.517
+(is a metacharacter separating the tw)4.017 F 4.017(op)-.1 G 4.017
+(arts. This)-4.017 F 1.517(ruleset can reject connections)4.017 F
+(from v)132 533.4 Q(arious locations.)-.25 E F0 2.5(5.1.4.2. check_mail)
+117 557.4 R F1(The)157 573.6 Q F2 -.15(ch)3.722 G(ec).15 E(k_mail)-.2 E
+F1 1.223(ruleset is passed the user name parameter of the)3.722 F/F3 9
+/Times-Roman@0 SF 1.223(SMTP MAIL)3.723 F F1(com-)3.723 E 2.5(mand. It)
+132 585.6 R(can accept or reject the address.)2.5 E F0 2.5
+(5.1.4.3. check_r)117 609.6 R(cpt)-.18 E F1(The)157 625.8 Q F2 -.15(ch)
+3.918 G(ec).15 E(k_r)-.2 E(cpt)-.37 E F1 1.417
+(ruleset is passed the user name parameter of the)3.918 F F3 1.417
+(SMTP RCPT)3.917 F F1(com-)3.917 E 2.5(mand. It)132 637.8 R
+(can accept or reject the address.)2.5 E F0 2.5(5.1.4.4. check_compat)
+117 661.8 R F1(The)157 678 Q F2 -.15(ch)2.5 G(ec).15 E(k_compat)-.2 E F1
+(ruleset is passed)2.5 E(sender)172 694.2 Q
+(-address $| recipient-address)-.2 E(where)132 710.4 Q F0($|)3.725 E F1
+1.225(is a metacharacter separating the addresses.)3.725 F 1.225
+(It can accept or reject mail transfer)6.225 F(between these tw)132
+722.4 Q 2.5(oa)-.1 G(ddresses much lik)-2.5 E 2.5(et)-.1 G(he)-2.5 E F2
+-.15(ch)2.5 G(ec).15 E(kcompat\(\))-.2 E F1(function.)2.5 E EP
+%%Page: 33 29
+%%BeginPageSetup
+BP
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+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-33)195.86 E 2.5(5.1.5. IPC)102 96 R(mailers)2.5 E/F1 10
+/Times-Roman@0 SF 1.333
+(Some special processing occurs if the ruleset zero resolv)142 112.2 R
+1.332(es to an IPC mailer \(that is, a)-.15 F 1.178
+(mailer that has \231[IPC]\232 listed as the P)117 124.2 R 1.179
+(ath in the)-.15 F F0(M)3.679 E F1 1.179(con\214guration line.)3.679 F
+1.179(The host name passed)6.179 F .169(after \231$@\232 has MX e)117
+136.2 R .168(xpansion performed; this looks the name up in DNS to \214nd alternate deli)
+-.15 F(v-)-.25 E(ery sites.)117 148.2 Q(The host name can also be pro)
+142 164.4 Q(vided as a dotted quad in square brack)-.15 E(ets; for e)-.1
+E(xample:)-.15 E([128.32.149.78])157 180.6 Q(This causes direct con)117
+196.8 Q -.15(ve)-.4 G(rsion of the numeric v).15 E
+(alue to a TCP/IP host address.)-.25 E .214(The host name passed in after the \231$@\232 may also be a colon-separated list of hosts.)
+142 213 R(Each)5.214 E .485(is separately MX e)117 225 R .484
+(xpanded and the results are concatenated to mak)-.15 F 2.984(e\()-.1 G
+.484(essentially\) one long MX)-2.984 F 3.464(list. The)117 237 R .964
+(intent here is to create \231f)3.464 F(ak)-.1 E .964
+(e\232 MX records that are not published in DNS for pri)-.1 F -.25(va)
+-.25 G(te).25 E(internal netw)117 249 Q(orks.)-.1 E
+(As a \214nal special case, the host name can be passed in as a te)142
+265.2 Q(xt string in square brack)-.15 E(ets:)-.1 E([ucb)157 281.4 Q
+-.25(va)-.15 G(x.berk).25 E(ele)-.1 E -.65(y.)-.15 G(edu]).65 E .313
+(This form a)117 297.6 R -.2(vo)-.2 G .313(ids the MX mapping.).2 F F0
+(N.B.:)5.313 E/F2 10/Times-Italic@0 SF .312
+(This is intended only for situations wher)2.813 F 2.812(ey)-.37 G .312
+(ou have a)-2.812 F .337(network \214r)117 309.6 R -.15(ew)-.37 G .337
+(all or other host that will do special pr).15 F .337
+(ocessing for all your mail, so that your MX)-.45 F -.37(re)117 321.6 S
+(cor).37 E 3.959(dp)-.37 G 1.459(oints to a gate)-3.959 F 1.459(way mac)
+-.15 F 1.459(hine; this mac)-.15 F 1.458(hine could then do dir)-.15 F
+1.458(ect delivery to mac)-.37 F(hines)-.15 E .09
+(within your local domain.)117 333.6 R .09(Use of this featur)5.09 F
+2.59(ed)-.37 G(ir)-2.59 E .09
+(ectly violates RFC 1123 section 5.3.5: it should)-.37 F
+(not be used lightly)117 345.6 Q(.)-.55 E F0 2.5(5.2. D)87 369.6 R 2.5
+<8a44>2.5 G(e\214ne Macr)-2.5 E(o)-.18 E F1 .082
+(Macros are named with a single character or with a w)127 385.8 R .081
+(ord in {braces}.)-.1 F .081(Single character names)5.081 F .45
+(may be selected from the entire ASCII set, b)102 397.8 R .45(ut user)
+-.2 F .45(-de\214ned macros should be selected from the set)-.2 F .446
+(of upper case letters only)102 409.8 R 5.446(.L)-.65 G -.25(ow)-5.446 G
+.446(er case letters and special symbols are used internally).25 F 5.446
+(.L)-.65 G .446(ong names)-5.446 F(be)102 421.8 Q .912
+(ginning with a lo)-.15 F .912
+(wer case letter or a punctuation character are reserv)-.25 F .913
+(ed for use by sendmail, so)-.15 F(user)102 433.8 Q
+(-de\214ned long macro names should be)-.2 E
+(gin with an upper case letter)-.15 E(.)-.55 E
+(The syntax for macro de\214nitions is:)127 450 Q F0(D)142 466.2 Q F2
+1.666(xv)C(al)-1.666 E F1(where)102 482.4 Q F2(x)3.069 E F1 .569
+(is the name of the macro \(which may be a single character or a w)3.069
+F .568(ord in braces\) and)-.1 F F2(val)3.068 E F1(is)3.068 E .478
+(the v)102 494.4 R .478(alue it should ha)-.25 F -.15(ve)-.2 G 5.478(.T)
+.15 G .478(here should be no spaces gi)-5.478 F -.15(ve)-.25 G 2.978(nt)
+.15 G .479(hat do not actually belong in the macro)-2.978 F -.25(va)102
+506.4 S(lue.).25 E .494(Macros are interpolated using the construct)127
+522.6 R F0($)2.994 E F2(x)A F1 2.994(,w)C(here)-2.994 E F2(x)2.994 E F1
+.494(is the name of the macro to be inter)2.994 F(-)-.2 E 2.932
+(polated. This)102 534.6 R .432
+(interpolation is done when the con\214guration \214le is read, e)2.932
+F .433(xcept in)-.15 F F0(M)2.933 E F1 2.933(lines. The)2.933 F(spe-)
+2.933 E(cial construct)102 546.6 Q F0($&)2.5 E F2(x)A F1(can be used in)
+2.5 E F0(R)2.5 E F1(lines to get deferred interpolation.)2.5 E
+(Conditionals can be speci\214ed using the syntax:)127 562.8 Q($?x te)
+142 579 Q(xt1 $| te)-.15 E(xt2 $.)-.15 E 1.128(This interpolates)102
+595.2 R F2(te)3.628 E(xt1)-.2 E F1 1.128(if the macro)3.628 F F0($x)
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+(otherwise. The)3.628 F 1.127(\231else\232 \()3.627 F F0($|)A F1 3.627
+(\)c)C 1.127(lause may be)-3.627 F(omitted.)102 607.2 Q(Lo)127 623.4 Q
+.58(wer case macro names are reserv)-.25 F .58(ed to ha)-.15 F .88 -.15
+(ve s)-.2 H .58(pecial semantics, used to pass information in).15 F
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+(nd special characters are reserv)-4.061 F 1.561(ed to pro)-.15 F 1.56
+(vide conditionals, etc.)-.15 F 1.56(Upper case)6.56 F(names \(that is,)
+102 647.4 Q F0($A)2.5 E F1(through)2.5 E F0($Z)2.5 E F1 2.5(\)a)C
+(re speci\214cally reserv)-2.5 E(ed for con\214guration \214le authors.)
+-.15 E 1.302(The follo)127 663.6 R 1.302
+(wing macros are de\214ned and/or used internally by)-.25 F F2(sendmail)
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+/F0 10/Times-Bold@0 SF 193.36(SMM:08-34 Sendmail)72 60 R
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+Q(gv')-.18 E 2.793(sf)-.55 G .293(or mailers or for other conte)-2.793 F
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+(ed \207 are information passed into sendmail)-.1 F/F2 7/Times-Roman@0
+SF(16)-4 I F1(,)4 I .035(the ones mark)102 110 R .036(ed \210 are information passed both in and out of sendmail, and the unmark)
+-.1 F .036(ed macros are)-.1 F(passed out of sendmail b)102 122 Q
+(ut are not otherwise used internally)-.2 E 5(.T)-.65 G
+(hese macros are:)-5 E 13.06($a The)102 138.2 R
+(origination date in RFC 822 format.)2.5 E(This is e)5 E
+(xtracted from the Date: line.)-.15 E 12.5($b The)102 154.4 R
+(current date in RFC 822 format.)2.5 E 13.06($c The)102 170.6 R .003
+(hop count.)2.503 F .003(This is a count of the number of Recei)5.003 F
+-.15(ve)-.25 G .002(d: lines plus the v).15 F .002(alue of the)-.25 F F0
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+102 198.8 R(current date in UNIX \(ctime\) format.)2.5 E 8.06
+($e\207 \(Obsolete;)102 215 R 1.814
+(use SmtpGreetingMessage option instead.\))4.314 F 1.814
+(The SMTP entry message.)6.814 F 1.814(This is)6.814 F 2.008
+(printed out when SMTP starts up.)127 227 R 2.008(The \214rst w)7.008 F
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+(aults to \231$j Sendmail $v ready at $b\232.)-.1 F .232
+(Commonly rede\214ned to include the con-)5.232 F(\214guration v)127 251
+Q(ersion number)-.15 E 2.5(,e)-.4 G
+(.g., \231$j Sendmail $v/$Z ready at $b\232)-2.5 E 14.17($f The)102
+267.2 R(en)2.5 E -.15(ve)-.4 G(lope sender \(from\) address.).15 E 12.5
+($g The)102 283.4 R .018(sender address relati)2.518 F .318 -.15(ve t)
+-.25 H 2.518(ot).15 G .018(he recipient.)-2.518 F -.15(Fo)5.018 G 2.518
+(re).15 G .017(xample, if)-2.668 F F0($f)2.517 E F1 .017
+(is \231foo\232,)2.517 F F0($g)2.517 E F1 .017
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+295.4 Q -.15(ve)-.25 G 2.5(ri).15 G 2.5(sa)-2.5 G
+(ppropriate for the recei)-2.5 E(ving mailer)-.25 E(.)-.55 E 12.5
+($h The)102 311.6 R(recipient host.)2.5 E
+(This is set in ruleset 0 from the $# \214eld of a parsed address.)5 E
+14.72($i The)102 327.8 R(queue id, e.g., \231HAA12345\232.)2.5 E 9.72
+($j\210 The)102 344 R(\231of)2.746 E .247
+(\214cial\232 domain name for this site.)-.25 F .247
+(This is fully quali\214ed if the full quali\214cation can be)5.247 F
+3.094(found. It)127 356 R/F3 10/Times-Italic@0 SF(must)3.094 E F1 .593(be rede\214ned to be the fully quali\214ed domain name if your system is not con-)
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+368 Q(.)-.65 E 12.5($k The)102 384.2 R
+(UUCP node name \(from the uname system call\).)2.5 E 9.72
+($l\207 \(Obsolete;)102 400.4 R 1.281
+(use UnixFromLine option instead.\))3.781 F 1.282
+(The format of the UNIX from line.)6.282 F(Unless)6.282 E 1.41(you ha)
+127 412.4 R 1.71 -.15(ve c)-.2 H 1.409
+(hanged the UNIX mailbox format, you should not change the def).15 F
+1.409(ault, which is)-.1 F(\231From $g)127 424.4 Q($d\232.)5 E 9.72
+($m The)102 440.6 R .718(domain part of the)3.218 F F3 -.1(ge)3.218 G
+(thostname).1 E F1 .718(return v)3.218 F 3.219(alue. Under)-.25 F .719
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+-.25 E(alent to)127 452.6 Q F0($w)2.5 E(.$m)-.7 E F1(.)A 7.5($n\207 The)
+102 468.8 R(name of the daemon \(for error messages\).)2.5 E(Def)5 E
+(aults to \231MAILER-D)-.1 E(AEMON\232.)-.4 E 7.5($o\207 \(Obsolete:)102
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+(ist of)-3.15 F .581(characters which will be considered tok)127 497 R
+.582(ens and which will separate tok)-.1 F .582(ens when doing pars-)-.1
+F 3.278(ing. F)127 509 R .778(or e)-.15 F .778
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+(macro, then the input \231a@b\232 w)3.278 F .777(ould be scanned as)-.1
+F .627(three tok)127 521 R .627(ens: \231a,)-.1 F 3.127<9a99>-.7 G(@,)
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+($p Sendmail')102 561.2 R 2.5(sp)-.55 G(rocess id.)-2.5 E 7.5
+($q\207 Def)102 577.4 R .403(ault format of sender address.)-.1 F(The)
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+G 2.904(na)-2.903 G .404(ddress should appear in a)-2.904 F 1.181
+(message when it is def)127 589.4 R 3.681(aulted. Def)-.1 F 1.181
+(aults to \231<$g>\232.)-.1 F 1.18
+(It is commonly rede\214ned to be \231$?x$x)6.181 F(<$g>$|$g$.)127 601.4
+Q 5<9a6f>-.7 G 2.5<7299>-5 G($g$?x \($x\)$.)-2.5 E
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+(EDU \(Eric Allman\)).65 E F3(Sendmail)127 645.8 Q F1
+(properly quotes names that ha)2.5 E .3 -.15(ve s)-.2 H
+(pecial characters if the \214rst form is used.).15 E 14.17($r Protocol)
+102 662 R .976(used to recei)3.476 F 1.276 -.15(ve t)-.25 H .976
+(he message.).15 F .976(Set from the)5.976 F F0<ad70>3.476 E F1 .977
+(command line \215ag or by the SMTP)3.476 F(serv)127 674 Q(er code.)-.15
+E .32 LW 76 688.4 72 688.4 DL 80 688.4 76 688.4 DL 84 688.4 80 688.4 DL
+88 688.4 84 688.4 DL 92 688.4 88 688.4 DL 96 688.4 92 688.4 DL 100 688.4
+96 688.4 DL 104 688.4 100 688.4 DL 108 688.4 104 688.4 DL 112 688.4 108
+688.4 DL 116 688.4 112 688.4 DL 120 688.4 116 688.4 DL 124 688.4 120
+688.4 DL 128 688.4 124 688.4 DL 132 688.4 128 688.4 DL 136 688.4 132
+688.4 DL 140 688.4 136 688.4 DL 144 688.4 140 688.4 DL 148 688.4 144
+688.4 DL 152 688.4 148 688.4 DL 156 688.4 152 688.4 DL 160 688.4 156
+688.4 DL 164 688.4 160 688.4 DL 168 688.4 164 688.4 DL 172 688.4 168
+688.4 DL 176 688.4 172 688.4 DL 180 688.4 176 688.4 DL 184 688.4 180
+688.4 DL 188 688.4 184 688.4 DL 192 688.4 188 688.4 DL 196 688.4 192
+688.4 DL 200 688.4 196 688.4 DL 204 688.4 200 688.4 DL 208 688.4 204
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+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
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+($u The)102 128.4 R(recipient user)2.5 E(.)-.55 E 12.5($v The)102 144.6
+R -.15(ve)2.5 G(rsion number of the).15 E/F2 10/Times-Italic@0 SF
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+12.5($x The)102 177 R(full name of the sender)2.5 E(.)-.55 E 13.06
+($z The)102 193.2 R(home directory of the recipient.)2.5 E 12.5($_ The)
+102 209.4 R -.25(va)2.5 G(lidated sender address.).25 E(${bodytype})102
+225.6 Q
+(The message body type \(7BIT or 8BITMIME\), as determined from the en)
+127 237.6 Q -.15(ve)-.4 G(lope.).15 E(${client_addr})102 253.8 Q
+(The IP address of the SMTP client.)127 265.8 Q
+(De\214ned in the SMTP serv)5 E(er only)-.15 E(.)-.65 E(${client_name})
+102 282 Q(The host name of the SMTP client.)127 294 Q
+(De\214ned in the SMTP serv)5 E(er only)-.15 E(.)-.65 E(${client_port})
+102 310.2 Q(The port number of the SMTP client.)127 322.2 Q
+(De\214ned in the SMTP serv)5 E(er only)-.15 E(.)-.65 E(${en)102 338.4 Q
+(vid})-.4 E(The en)127 350.4 Q -.15(ve)-.4 G
+(lope id passed to sendmail as part of the en).15 E -.15(ve)-.4 G(lope.)
+.15 E(${opMode})102 366.6 Q(The current operation mode \(from the)127
+378.6 Q F0<ad62>2.5 E F1(\215ag\).)2.5 E .749
+(There are three types of dates that can be used.)127 394.8 R(The)5.749
+E F0($a)3.249 E F1(and)3.249 E F0($b)3.249 E F1 .749
+(macros are in RFC 822 for)3.249 F(-)-.2 E(mat;)102 406.8 Q F0($a)3.213
+E F1 .713(is the time as e)3.213 F .714
+(xtracted from the \231Date:\232 line of the message \(if there w)-.15 F
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+(the current date and time \(used for postmarks\).)102 418.8 R .056
+(If no \231Date:\232 line is found in the incoming message,)5.057 F F0
+($a)102 430.8 Q F1 .304(is set to the current time also.)2.804 F(The)
+5.304 E F0($d)2.804 E F1 .305(macro is equi)2.804 F -.25(va)-.25 G .305
+(lent to the).25 F F0($b)2.805 E F1 .305(macro in UNIX \(ctime\) for)
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+(are set to the identity of this host.)2.739 F F2(Sendmail)5.238 E F1
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+102 471 R F2 -.1(ge)2.835 G(thostname).1 E F1 .335
+(\(2\) to get the current)B .457(hostname and then passing that to)102
+483 R F2 -.1(ge)2.957 G(thostbyname).1 E F1 .457
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+.278(sion of that host name.)102 497 R/F3 7/Times-Roman@0 SF(17)-4 I F1
+.278(Assuming this is successful,)2.778 4 N F0($j)2.778 E F1 .279
+(is set to the fully quali\214ed name and)2.778 F F0($m)2.779 E F1(is)
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+(rything before the \214rst dot\) if you ha).15 F .658 -.15(ve a l)-.2 H
+-2.15 -.25(ev e).15 H 2.858(l5o).25 G 2.858(rh)-2.858 G .359
+(igher con\214guration \214le; otherwise, it)-2.858 F .405
+(is set to the same v)102 533 R .405(alue as)-.25 F F0($j)2.905 E F1
+5.405(.I)C 2.905(ft)-5.405 G .405
+(he canoni\214cation is not successful, it is imperati)-2.905 F .704
+-.15(ve t)-.25 H .404(hat the con\214g).15 F(\214le set)102 547 Q F0($j)
+2.5 E F1(to the fully quali\214ed domain name)2.5 E F3(18)-4 I F1(.)4 I
+(The)127 563.2 Q F0($f)2.832 E F1 .333(macro is the id of the sender as originally determined; when mailing to a speci\214c host)
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+.724(lative to the r).37 F(ecipient.)-.37 E F1 -.15(Fo)5.724 G 3.224(re)
+.15 G .724(xample, if I send to)-3.374 F(\231bollard@matisse.CS.Berk)102
+587.2 Q(ele)-.1 E -.65(y.)-.15 G .424(EDU\232 from the machine \231v).65
+F(angogh.CS.Berk)-.25 E(ele)-.1 E -.65(y.)-.15 G .424(EDU\232 the).65 F
+F0($f)2.925 E F1(macro)2.925 E(will be \231eric\232 and the)102 599.2 Q
+F0($g)2.5 E F1(macro will be \231eric@v)2.5 E(angogh.CS.Berk)-.25 E(ele)
+-.1 E -.65(y.)-.15 G(EDU.).65 E<9a>-.7 E(The)127 615.4 Q F0($x)2.563 E
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+-.55 G .062(his can be determined in se)-5.062 F -.15(ve)-.25 G .062
+(ral w).15 F 2.562(ays. It)-.1 F .629(can be passed as \215ag to)102
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+(an be de\214ned in the)-3.129 F/F4 9/Times-Roman@0 SF -.315(NA)3.13 G
+(ME).315 E F1(en)3.13 E .63(vironment v)-.4 F 3.13(ariable. The)-.25 F
+(third)3.13 E .949(choice is the v)102 639.4 R .949
+(alue of the \231Full-Name:\232 line in the header if it e)-.25 F .948
+(xists, and the fourth choice is the)-.15 F .526
+(comment \214eld of a \231From:\232 line.)102 651.4 R .526
+(If all of these f)5.526 F .526
+(ail, and if the message is being originated locally)-.1 F(,)-.65 E
+(the full name is look)102 663.4 Q(ed up in the)-.1 E F2(/etc/passwd)2.5
+E F1(\214le.)2.5 E .32 LW 76 673 72 673 DL 80 673 76 673 DL 84 673 80
+673 DL 88 673 84 673 DL 92 673 88 673 DL 96 673 92 673 DL 100 673 96 673
+DL 104 673 100 673 DL 108 673 104 673 DL 112 673 108 673 DL 116 673 112
+673 DL 120 673 116 673 DL 124 673 120 673 DL 128 673 124 673 DL 132 673
+128 673 DL 136 673 132 673 DL 140 673 136 673 DL 144 673 140 673 DL 148
+673 144 673 DL 152 673 148 673 DL 156 673 152 673 DL 160 673 156 673 DL
+164 673 160 673 DL 168 673 164 673 DL 172 673 168 673 DL 176 673 172 673
+DL 180 673 176 673 DL 184 673 180 673 DL 188 673 184 673 DL 192 673 188
+673 DL 196 673 192 673 DL 200 673 196 673 DL 204 673 200 673 DL 208 673
+204 673 DL 212 673 208 673 DL 216 673 212 673 DL/F5 5/Times-Roman@0 SF
+(17)93.6 683.4 Q/F6 8/Times-Roman@0 SF -.12(Fo)3.2 K 2(re).12 G
+(xample, on some systems)-2.12 E/F7 8/Times-Italic@0 SF -.08(ge)2 G
+(thostname).08 E F6(might return \231foo\232 which w)2 E
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+(thostbyname).08 E F6(.)A F5(18)93.6 697 Q F6(Older v)3.2 I
+(ersions of sendmail didn')-.12 E 2(tp)-.144 G(re-de\214ne)-2 E/F8 8
+/Times-Bold@0 SF($j)2 E F6(at all, so up until 8.6, con\214g \214les)2 E
+F7(always)2 E F6(had to de\214ne)2 E F8($j)2 E F6(.)A EP
+%%Page: 36 32
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+/F0 10/Times-Bold@0 SF 193.36(SMM:08-36 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF 1.321
+(When sending, the)127 96 R F0($h)3.821 E F1(,)A F0($u)3.821 E F1 3.821
+(,a)C(nd)-3.821 E F0($z)3.821 E F1 1.321
+(macros get set to the host, user)3.821 F 3.82(,a)-.4 G 1.32
+(nd home directory \(if)-3.82 F .516(local\) of the recipient.)102 108 R
+.516(The \214rst tw)5.516 F 3.016(oa)-.1 G .516(re set from the)-3.016 F
+F0($@)3.016 E F1(and)3.016 E F0($:)3.016 E F1 .517(part of the re)3.017
+F .517(writing rules, respec-)-.25 F(ti)102 120 Q -.15(ve)-.25 G(ly).15
+E(.)-.65 E(The)127 136.2 Q F0($p)3.806 E F1(and)3.806 E F0($t)3.806 E F1
+1.306(macros are used to create unique strings \(e.g., for the \231Message-Id:\232 \214eld\).)
+3.806 F(The)102 148.2 Q F0($i)3.251 E F1 .751(macro is set to the queue id on this host; if put into the timestamp line it can be e)
+3.251 F(xtremely)-.15 E .165(useful for tracking messages.)102 160.2 R
+(The)5.165 E F0($v)2.665 E F1 .164(macro is set to be the v)2.665 F .164
+(ersion number of)-.15 F/F2 10/Times-Italic@0 SF(sendmail)2.664 E F1
+2.664(;t)C .164(his is nor)-2.664 F(-)-.2 E
+(mally put in timestamps and has been pro)102 172.2 Q -.15(ve)-.15 G 2.5
+(ne).15 G(xtremely useful for deb)-2.65 E(ugging.)-.2 E(The)127 188.4 Q
+F0($c)3.547 E F1 1.048(\214eld is set to the \231hop count,)3.547 F
+3.548<9a69>-.7 G 1.048
+(.e., the number of times this message has been pro-)-3.548 F 2.857
+(cessed. This)102 200.4 R .357(can be determined by the)2.857 F F0<ad68>
+2.857 E F1 .356
+(\215ag on the command line or by counting the timestamps)2.857 F
+(in the message.)102 212.4 Q(The)127 228.6 Q F0($r)2.832 E F1(and)2.833
+E F0($s)2.833 E F1 .333
+(\214elds are set to the protocol used to communicate with)2.833 F F2
+(sendmail)2.833 E F1 .333(and the send-)2.833 F .195(ing hostname.)102
+240.6 R(The)5.195 E 2.694(yc)-.15 G .194(an be set together using the)
+-2.694 F F0<ad70>2.694 E F1 .194
+(command line \215ag or separately using the)2.694 F F0<ad4d>2.694 E F1
+(or)102 252.6 Q F0(\255oM)2.5 E F1(\215ags.)2.5 E(The)127 268.8 Q F0($_)
+2.966 E F1 .466(is set to a v)2.966 F .467(alidated sender host name.)
+-.25 F .467(If the sender is running an RFC 1413 compli-)5.467 F .385
+(ant IDENT serv)102 280.8 R .384(er and the recei)-.15 F -.15(ve)-.25 G
+2.884(rh).15 G .384
+(as the IDENT protocol turned on, it will include the user name)-2.884 F
+(on that host.)102 292.8 Q(The)127 309 Q F0(${client_name})5.98 E F1(,)A
+F0(${client_addr})5.98 E F1 5.98(,a)C(nd)-5.98 E F0(${client_port})5.98
+E F1 3.48(macros are set to the name,)5.98 F .786
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+(also speci\214ed, this \215ag causes the user id to al)122 402 R -.1
+(wa)-.1 G .974(ys be set to that user and group \(instead of).1 F(lea)
+122 414 Q(ving it as root\).)-.2 E 15(uU)102 430.2 S
+(pper case should be preserv)-15 E(ed in user names for this mailer)-.15
+E(.)-.55 E 12.78(UT)102 446.4 S(his mailer w)-12.78 E(ants UUCP-style \231From\232 lines with the ugly \231remote from <host>\232 on the end.)
+-.1 E 12.78(wT)102 462.6 S .565(he user must ha)-12.78 F .865 -.15
+(ve a v)-.2 H .566
+(alid account on this machine, i.e., getpwnam must succeed.)-.1 F .566
+(If not, the)5.566 F(mail is bounced.)122 474.6 Q
+(This is required to get \231.forw)5 E(ard\232 capability)-.1 E(.)-.65 E
+7.5(x\207 This)102 490.8 R(mailer w)2.5 E
+(ants a \231Full-Name:\232 header line.)-.1 E 12.78(XT)102 507 S .972
+(his mailer w)-12.78 F .972(ant to use the hidden dot algorithm as speci\214ed in RFC821; basically)
+-.1 F 3.472(,a)-.65 G 1.272 -.15(ny l)-3.472 H(ine).15 E(be)122 519 Q
+.796(ginning with a dot will ha)-.15 F 1.096 -.15(ve a)-.2 H 3.296(ne)
+.15 G .797(xtra dot prepended \(to be stripped at the other end\).)
+-3.446 F(This)5.797 E(insures that lines in the message containing a dot will not terminate the message prematurely)
+122 531 Q(.)-.65 E 15(0D)102 547.2 S(on')-15 E 2.5(tl)-.18 G
+(ook up MX records for hosts sent via SMTP)-2.5 E(.)-1.11 E 15(3E)102
+563.4 S .002(xtend the list of characters con)-15 F -.15(ve)-.4 G .001
+(rted to =XX notation when con).15 F -.15(ve)-.4 G .001
+(rting to Quoted-Printable to).15 F .977(include those that don')122
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+F .978(Useful if you ha)5.978 F 1.278 -.15(ve I)-.2 H(BM).15 E
+(mainframes on site.)122 587.4 Q 15(5I)102 603.6 S 2.717(fn)-15 G 2.717
+(oa)-2.717 G .217(liases are found for this address, pass the address through ruleset 5 for possible alternate)
+-2.717 F 2.5(resolution. This)122 615.6 R(is intended to forw)2.5 E
+(ard the mail to an alternate deli)-.1 E -.15(ve)-.25 G(ry spot.).15 E
+15(7S)102 631.8 S 1.14(trip all output to se)-15 F -.15(ve)-.25 G 3.64
+(nb).15 G 3.64(its. This)-3.64 F 1.14(is the def)3.64 F 1.141
+(ault if the)-.1 F F0(L)3.641 E F1 1.141(\215ag is set.)3.641 F 1.141
+(Note that clearing this)6.141 F .295(option is not suf)122 643.8 R .295
+(\214cient to get full eight bit data passed through)-.25 F F2(sendmail)
+2.795 E F1 5.295(.I)C 2.795(ft)-5.295 G(he)-2.795 E F0(7)2.795 E F1 .295
+(option is set,)2.795 F .716(this is essentially al)122 655.8 R -.1(wa)
+-.1 G .717(ys set, since the eighth bit w).1 F .717
+(as stripped on input.)-.1 F .717(Note that this option)5.717 F
+(will only impact messages that didn')122 667.8 Q 2.5(th)-.18 G -2.25
+-.2(av e)-2.5 H(8)2.7 E/F3 10/Symbol SF<ae>A F1 2.5(7b)C(it MIME con)
+-2.5 E -.15(ve)-.4 G(rsions performed.).15 E 15(8I)102 684 S 3.783(fs)
+-15 G 1.283(et, it is acceptable to send eight bit data to this mailer; the usual attempt to do 8)
+-3.783 F F3<ae>A F1 3.782(7b)C(it)-3.782 E(MIME con)122 696 Q -.15(ve)
+-.4 G(rsions will be bypassed.).15 E 15(9I)102 712.2 S 2.704(fs)-15 G
+.204(et, do)-2.704 F F2(limited)2.704 E F1(7)2.704 E F3<ae>A F1 2.704
+(8b)C .204(it MIME con)-2.704 F -.15(ve)-.4 G 2.704(rsions. These).15 F
+(con)2.704 E -.15(ve)-.4 G .205(rsions are limited to te).15 F .205
+(xt/plain data.)-.15 F EP
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+/F0 10/Times-Bold@0 SF 193.36(SMM:08-40 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF 17.22(:C)
+102 96 S .982(heck addresses to see if the)-17.22 F 3.482(yb)-.15 G -.15
+(eg)-3.482 G .982(in \231:include:\232; if the).15 F 3.482(yd)-.15 G
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+(rt them to the \231*include*\232).15 F(mailer)122 108 Q(.)-.55 E 18(|C)
+102 124.2 S(heck addresses to see if the)-18 E 2.5(yb)-.15 G -.15(eg)
+-2.5 G(in with a `|'; if the).15 E 2.5(yd)-.15 G(o, con)-2.5 E -.15(ve)
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+(rt them to the \231*\214le*\232 mailer).15 E(.)-.55 E 10.79(@L)102
+156.6 S(ook up addresses in the user database.)-10.79 E .267
+(Con\214guration \214les prior to le)127 172.8 R -.15(ve)-.25 G 2.768
+(l6a).15 G .268(ssume the `)-2.768 F -1.11(A')-.8 G 2.768(,`)1.11 G .268
+(w', `5', `:', `|', `/', and `@' options on the)-2.768 F
+(mailer named \231local\232.)102 184.8 Q .306(The mailer with the special name \231error\232 can be used to generate a user error)
+127 201 R 5.305(.T)-.55 G .305(he \(optional\))-5.305 F .323
+(host \214eld is an e)102 213 R .323(xit status to be returned, and the user \214eld is a message to be printed.)
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+(tus may be numeric or one of the v)102 225 R .891(alues USA)-.25 F .891
+(GE, NOUSER, NOHOST)-.4 F 3.39(,U)-.74 G -.35(NA)-3.39 G -1.35(VA)-1 G
+.89(ILABLE, SOFT)1.35 F(-)-.92 E -1.2(WA)102 237 S 1.141(RE, TEMPF)1.2 F
+1.141(AIL, PR)-.74 F -1.88 -.4(OT O)-.4 H 1.141
+(COL, or CONFIG to return the corresponding EX_ e).4 F 1.142
+(xit code, or an)-.15 F .288
+(enhanced error code as described in RFC 1893,)102 249 R/F2 10
+/Times-Italic@0 SF .288(Enhanced Mail System Status Codes.)2.788 F F1
+-.15(Fo)5.287 G 2.787(re).15 G(xample,)-2.937 E(the entry:)102 261 Q
+($#error $@ NOHOST $: Host unkno)142 277.2 Q(wn in this domain)-.25 E
+.145(on the RHS of a rule will cause the speci\214ed error to be generated and the \231Host unkno)
+102 293.4 R .146(wn\232 e)-.25 F .146(xit sta-)-.15 F .491
+(tus to be returned if the LHS matches.)102 305.4 R .491
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+333.6 R F2(must)2.968 E F1 .468(be de\214ned in e)2.968 F -.15(ve)-.25 G
+.468(ry con\214guration \214le.).15 F .468(This is used to deli)5.468 F
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+102 345.6 R -.15(ve)-.25 G .25(ral w).15 F 2.75(ays. Additionally)-.1 F
+2.75(,t)-.65 G .25(hree other mailers named \231prog\232,)-2.75 F .942(\231*\214le*\232, and \231*include*\232 may be de\214ned to tune the deli)
+102 357.6 R -.15(ve)-.25 G .942
+(ry of messages to programs, \214les, and).15 F
+(:include: lists respecti)102 369.6 Q -.15(ve)-.25 G(ly).15 E 5(.T)-.65
+G(he)-5 E 2.5(yd)-.15 G(ef)-2.5 E(ault to:)-.1 E
+(Mprog, P=/bin/sh, F=lsD, A=sh \255c $u)142 385.8 Q(M*\214le*, P=/de)142
+397.8 Q(v/null, F=lsDFMPEu, A=FILE)-.25 E(M*include*, P=/de)142 409.8 Q
+(v/null, F=su, A=INCLUDE)-.25 E .616(The Sender and Recipient re)127
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+(writing sets may either be a simple ruleset id or may be tw)-.25 F
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+(separated by a slash; if so, the \214rst re)102 442.2 R .576
+(writing set is applied to en)-.25 F -.15(ve)-.4 G .576
+(lope addresses and the second is).15 F(applied to headers.)102 454.2 Q
+.197
+(The Directory is actually a colon-separated path of directories to try)
+127 470.4 R 5.196(.F)-.65 G .196(or e)-5.346 F .196
+(xample, the de\214ni-)-.15 F .104
+(tion \231D=$z:/\232 \214rst tries to e)102 482.4 R -.15(xe)-.15 G .104
+(cute in the recipient').15 F 2.604(sh)-.55 G .104
+(ome directory; if that is not a)-2.604 F -.25(va)-.2 G .104
+(ilable, it tries to).25 F -.15(exe)102 494.4 S .816
+(cute in the root of the \214lesystem.).15 F .816
+(This is intended to be used only on the \231prog\232 mailer)5.816 F
+3.316(,s)-.4 G(ince)-3.316 E .367(some shells \(such as)102 506.4 R F2
+(csh)2.867 E F1 2.867(\)r)C .367(efuse to e)-2.867 F -.15(xe)-.15 G .368
+(cute if the).15 F 2.868(yc)-.15 G .368(annot read the home directory)
+-2.868 F 5.368(.S)-.65 G .368(ince the queue)-5.368 F
+(directory is not normally readable by unpri)102 518.4 Q(vile)-.25 E
+(ged users)-.15 E F2(csh)2.5 E F1(scripts as recipients can f)2.5 E
+(ail.)-.1 E 1.863(The Userid speci\214es the def)127 534.6 R 1.863
+(ault user and group id to run as, o)-.1 F -.15(ve)-.15 G 1.862
+(rriding the).15 F F0(DefaultUser)4.362 E F1 .286(option \(q.v)102 546.6
+R 2.786(.\). If)-.65 F(the)2.786 E F0(S)2.786 E F1 .287(mailer \215ag is also speci\214ed, this is the user and group to run as in all circum-)
+2.786 F 2.588(stances. This)102 558.6 R .088(may be gi)2.588 F -.15(ve)
+-.25 G 2.588(na).15 G(s)-2.588 E F2(user:gr)2.588 E(oup)-.45 E F1 .088
+(to set both the user and group id; either may be an inte)2.588 F(ger)
+-.15 E .541(or a symbolic name to be look)102 570.6 R .541(ed up in the)
+-.1 F F2(passwd)3.041 E F1(and)3.041 E F2(gr)3.041 E(oup)-.45 E F1 .541
+(\214les respecti)3.041 F -.15(ve)-.25 G(ly).15 E 5.541(.I)-.65 G 3.041
+(fo)-5.541 G .542(nly a symbolic)-3.041 F
+(user name is speci\214ed, the group id in the)102 582.6 Q F2(passwd)2.5
+E F1(\214le for that user is used as the group id.)2.5 E .545
+(The Charset \214eld is used when con)127 598.8 R -.15(ve)-.4 G .545
+(rting a message to MIME; this is the character set used).15 F .465
+(in the Content-T)102 610.8 R .465(ype: header)-.8 F 5.465(.I)-.55 G
+2.965(ft)-5.465 G .465(his is not set, the)-2.965 F F0(DefaultCharset)
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+(wn-8bit\232 is used.)-.25 F F0 -1.2(WA)5.257 G(RNING:)1.2 E F1 .257
+(this \214eld applies to the sender')2.757 F 2.757(sm)-.55 G(ailer)
+-2.757 E 2.757(,n)-.4 G .257(ot the)-2.757 F(recipient')102 634.8 Q
+2.701(sm)-.55 G(ailer)-2.701 E 5.201(.F)-.55 G .201(or e)-5.351 F .201
+(xample, if the en)-.15 F -.15(ve)-.4 G .202
+(lope sender address lists an address on the local netw).15 F(ork)-.1 E
+.48(and the recipient is on an e)102 646.8 R .48(xternal netw)-.15 F .48
+(ork, the character set will be set from the Charset= \214eld for)-.1 F
+(the local netw)102 658.8 Q(ork mailer)-.1 E 2.5(,n)-.4 G
+(ot that of the e)-2.5 E(xternal netw)-.15 E(ork mailer)-.1 E(.)-.55 E
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+-.8 F 2.805(1894. It)102 687 R .305(is actually three v)2.805 F .305
+(alues separated by slashes: the MT)-.25 F .305
+(A-type \(that is, the description of ho)-.93 F(w)-.25 E .083(hosts are named\), the address type \(the description of e-mail addresses\), and the diagnostic type \(the)
+102 699 R .143(description of error diagnostic codes\).)102 711 R .143
+(Each of these must be a re)5.143 F .142(gistered v)-.15 F .142
+(alue or be)-.25 F .142(gin with \231X\255\232.)-.15 F(The def)102 723 Q
+(ault is \231dns/rfc822/smtp\232.)-.1 E EP
+%%Page: 41 37
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-41)195.86 E 2.5(5.5. H)87 96 R 2.5<8a44>2.5 G(e\214ne Header)
+-2.5 E/F1 10/Times-Roman@0 SF 1.135(The format of the header lines that)
+127 112.2 R/F2 10/Times-Italic@0 SF(sendmail)3.636 E F1 1.136
+(inserts into the message are de\214ned by the)3.636 F F0(H)3.636 E F1
+2.5(line. The)102 124.2 R(syntax of this line is:)2.5 E F0(H)142 140.4 Q
+F1([)A F0(?)A F2(m\215a)A(gs)-.1 E F0(?)A F1(])A F2(hname)A F0(:)A F2
+(htemplate)2.5 E F1 1.058(Continuation lines in this spec are re\215ected directly into the outgoing message.)
+102 156.6 R(The)6.058 E F2(htemplate)3.557 E F1(is)3.557 E 1.097
+(macro e)102 168.6 R 1.097(xpanded before insertion into the message.)
+-.15 F 1.098(If the)6.098 F F2(m\215a)3.598 E(gs)-.1 E F1 1.098
+(\(surrounded by question marks\))3.598 F .161(are speci\214ed, at least one of the speci\214ed \215ags must be stated in the mailer de\214nition for this header)
+102 180.6 R .191(to be automatically output.)102 192.6 R .192(If one of these headers is in the input it is re\215ected to the output re)
+5.191 F -.05(ga)-.15 G(rd-).05 E(less of these \215ags.)102 204.6 Q
+(Some headers ha)127 220.8 Q .3 -.15(ve s)-.2 H
+(pecial semantics that will be described later).15 E(.)-.55 E F0 2.5
+(5.6. O)87 244.8 R 2.5<8a53>2.5 G(et Option)-2.5 E F1 .963(There are a number of global options that can be set from a con\214guration \214le.)
+127 261 R .962(Options are)5.962 F .86(represented by full w)102 273 R
+.86(ords; some are also representable as single characters for back compatibility)
+-.1 F(.)-.65 E(The syntax of this line is:)102 285 Q F0(O)142 301.2 Q F2
+(option)7.5 E F0(=)A F2(value)A F1 .563(This sets option)102 317.4 R F2
+(option)3.062 E F1 .562(to be)3.062 F F2(value)3.062 E F1 5.562(.N)C
+.562(ote that there)-5.562 F F2(must)3.062 E F1 .562
+(be a space between the letter `O' and the)3.062 F(name of the option.)
+102 329.4 Q(An older v)5 E(ersion is:)-.15 E F0(O)142 345.6 Q F2 1.666
+(ov)C(alue)-1.666 E F1 .13(where the option)102 361.8 R F2(o)2.63 E F1
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+(oolean \(with le)-2.5 E -.05(ga)-.15 G 2.5(lv).05 G
+(alues \231t\232, \231T\232, \231f\232, or \231F\232; the def)-2.75 E
+(ault is TR)-.1 E(UE\), or a time interv)-.4 E(al.)-.25 E
+(The options supported \(with the old, one character names in brack)127
+390 Q(ets\) are:)-.1 E(AliasFile=)102 406.2 Q F2(spec, spec, ...)A F1
+.44([A] Specify possible alias \214le\(s\).)174 418.2 R(Each)5.439 E F2
+(spec)2.939 E F1 .439(should be in the format `)2.939 F(`)-.74 E F2
+(class)A F0(:)A F2(\214le)2.939 E F1 -.74('')C(where)174 430.2 Q F2
+(class)3.099 E F0(:)A F1 .599(is optional and def)3.099 F .599
+(aults to `)-.1 F(`implicit')-.74 E 3.099('. Depending)-.74 F .599
+(on ho)3.099 F(w)-.25 E F2(sendmail)3.1 E F1 .187(is compiled, v)174
+442.2 R .187(alid classes are \231implicit\232 \(search through a compiled-in list of alias)
+-.25 F 2.055(\214le types, for back compatibility\), \231hash\232 \(if)
+174 454.2 R/F3 9/Times-Roman@0 SF(NEWDB)4.555 E F1 2.055
+(is speci\214ed\), \231dbm\232 \(if)4.555 F F3(NDBM)174 466.2 Q F1 1.588
+(is speci\214ed\), \231stab\232 \(internal symbol table \212 not normally used unless)
+4.089 F .074(you ha)174 478.2 R .374 -.15(ve n)-.2 H 2.574(oo).15 G .074
+(ther database lookup\), or \231nis\232 \(if)-2.574 F F3(NIS)2.574 E F1
+.075(is speci\214ed\).)2.575 F .075(If a list of)5.075 F F2(spec)2.575 E
+F1(s)A(are pro)174 490.2 Q(vided,)-.15 E F2(sendmail)2.5 E F1
+(searches them in order)2.5 E(.)-.55 E(AliasW)102 506.4 Q(ait=)-.8 E F2
+(timeout)A F1 .141([a] If set, w)174 518.4 R .141(ait up to)-.1 F F2
+(timeout)2.641 E F1 .141(\(units def)2.641 F .14
+(ault to minutes\) for an \231@:@\232 entry to e)-.1 F(xist)-.15 E .517
+(in the alias database before starting up.)174 530.4 R .517
+(If it does not appear in the)5.517 F F2(timeout)3.018 E F1(inter)3.018
+E(-)-.2 E -.25(va)174 542.4 S 3.21(lr).25 G(eb)-3.21 E .71
+(uild the database \(if the)-.2 F F0 -.5(Au)3.21 G(toReb).5 E
+(uildAliases)-.2 E F1 .71(option is also set\) or issue a)3.21 F -.1(wa)
+174 554.4 S(rning.).1 E(Allo)102 570.6 Q(wBogusHELO)-.25 E 1.104
+([no short name] If set, allo)174 582.6 R 3.604(wH)-.25 G 1.104
+(ELO SMTP commands that don')-3.604 F 3.604(ti)-.18 G 1.104
+(nclude a host)-3.604 F 2.882(name. Setting)174 594.6 R .382
+(this violates RFC 1123 section 5.2.5, b)2.882 F .381
+(ut is necessary to interoper)-.2 F(-)-.2 E .06(ate with se)174 606.6 R
+-.15(ve)-.25 G .06(ral SMTP clients.).15 F .061(If there is a v)5.06 F
+.061(alue, it is still check)-.25 F .061(ed for le)-.1 F(gitimac)-.15 E
+-.65(y.)-.15 G(AutoReb)102 622.8 Q(uildAliases)-.2 E .128
+([D] If set, reb)174 634.8 R .128
+(uild the alias database if necessary and possible.)-.2 F .128
+(If this option is not)5.128 F(set,)174 646.8 Q F2(sendmail)4.885 E F1
+2.385(will ne)4.885 F -.15(ve)-.25 G 4.885(rr).15 G(eb)-4.885 E 2.385
+(uild the alias database unless e)-.2 F 2.385(xplicitly requested)-.15 F
+(using)174 658.8 Q F0(\255bi)2.5 E F1 5(.N)C
+(ot recommended \212 can cause thrashing.)-5 E(BlankSub=)102 675 Q F2(c)
+A F1 1.255([B] Set the blank substitution character to)22.47 F F2(c)
+3.755 E F1 6.255(.U)C 1.255(nquoted spaces in addresses are)-6.255 F
+(replaced by this character)174 687 Q 5(.D)-.55 G(ef)-5 E
+(aults to space \(i.e., no change is made\).)-.1 E 14.51
+(CheckAliases [n])102 703.2 R -1.11(Va)2.5 G
+(lidate the RHS of aliases when reb)1.11 E(uilding the alias database.)
+-.2 E EP
+%%Page: 42 38
+%%BeginPageSetup
+BP
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+/F0 10/Times-Bold@0 SF 193.36(SMM:08-42 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF
+(CheckpointInterv)102 96 Q(al=)-.25 E/F2 10/Times-Italic@0 SF(N)A F1
+1.296([C] Checkpoints the queue e)174 108 R -.15(ve)-.25 G(ry).15 E F2
+(N)3.797 E F1(\(def)3.797 E 1.297(ault 10\) addresses sent.)-.1 F 1.297
+(If your system)6.297 F .747(crashes during deli)174 120 R -.15(ve)-.25
+G .746(ry to a lar).15 F .746(ge list, this pre)-.18 F -.15(ve)-.25 G
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+(last recipients.)174 132 Q(ClassF)102 148.2 Q(actor=)-.15 E F2(fact)A
+F1 1.624([z] The indicated)4.29 F F2(fact)4.124 E F1 1.624
+(or is multiplied by the message class \(determined by the)B .719
+(Precedence: \214eld in the user header and the)174 160.2 R F0(P)3.219 E
+F1 .718(lines in the con\214guration \214le\) and)3.218 F 2.637
+(subtracted from the priority)174 172.2 R 7.637(.T)-.65 G 2.637
+(hus, messages with a higher Priority: will be)-7.637 F -.1(fa)174 184.2
+S -.2(vo)-.1 G 2.5(red. Def).2 F(aults to 1800.)-.1 E 3.95
+(ColonOkInAddr [no)102 200.4 R 4.679
+(short name] If set, colons are acceptable in e-mail addresses \(e.g.,)
+7.18 F 3.54(\231host:user\232\). If)174 212.4 R 1.04
+(not set, colons indicate the be)3.54 F 1.04
+(ginning of a RFC 822 group con-)-.15 F 1.988
+(struct \(\231groupname: member1, member2, ... memberN;\232\).)174 224.4
+R 1.987(Doubled colons are)6.987 F(al)174 236.4 Q -.1(wa)-.1 G 2.215(ys acceptable \(\231nodename::user\232\) and proper route-addr nesting is under)
+.1 F(-)-.2 E 1.037(stood \(\231<@relay:user@host>\232\).)174 248.4 R
+1.037(Furthermore, this option def)6.037 F 1.036(aults on if the con-)
+-.1 F .853(\214guration v)174 260.4 R .853(ersion le)-.15 F -.15(ve)-.25
+G 3.353(li).15 G 3.353(sl)-3.353 G .853
+(ess than 6 \(for back compatibility\).)-3.353 F(Ho)5.854 E(we)-.25 E
+-.15(ve)-.25 G 1.654 -.4(r, i).15 H 3.354(tm).4 G(ust)-3.354 E(be of)174
+272.4 Q 2.5(ff)-.25 G(or full compatibility with RFC 822.)-2.5 E
+(ConnectionCacheSize=)102 288.6 Q F2(N)A F1 .242([k] The maximum number of open connections that will be cached at a time.)
+174 300.6 R(The)5.242 E(def)174 312.6 Q .385(ault is one.)-.1 F .386
+(This delays closing the current connection until either this in)5.386 F
+-.2(vo)-.4 G(ca-).2 E 1.192(tion of)174 324.6 R F2(sendmail)3.692 E F1
+1.191(needs to connect to another host or it terminates.)3.692 F 1.191
+(Setting it to)6.191 F 2.046(zero def)174 336.6 R 2.046
+(aults to the old beha)-.1 F(vior)-.2 E 4.546(,t)-.4 G 2.047
+(hat is, connections are closed immediately)-4.546 F(.)-.65 E .266(Since this consumes \214le descriptors, the connection cache should be k)
+174 348.6 R .265(ept small: 4)-.1 F(is probably a practical maximum.)174
+360.6 Q(ConnectionCacheT)102 376.8 Q(imeout=)-.35 E F2(timeout)A F1 .708
+([K] The maximum amount of time a cached connection will be permitted to idle)
+174 388.8 R 1.083(without acti)174 400.8 R(vity)-.25 E 6.083(.I)-.65 G
+3.583(ft)-6.083 G 1.083(his time is e)-3.583 F 1.082
+(xceeded, the connection is immediately closed.)-.15 F .417(This v)174
+412.8 R .418(alue should be small \(on the order of ten minutes\).)-.25
+F(Before)5.418 E F2(sendmail)2.918 E F1 .418(uses a)2.918 F .508
+(cached connection, it al)174 424.8 R -.1(wa)-.1 G .507
+(ys sends a RSET command to check the connection; if).1 F .401(this f)
+174 436.8 R .401(ails, it reopens the connection.)-.1 F .401(This k)
+5.401 F .402(eeps your end from f)-.1 F .402(ailing if the other)-.1 F
+1.545(end times out.)174 448.8 R 1.545
+(The point of this option is to be a good netw)6.545 F 1.544
+(ork neighbor and)-.1 F -.2(avo)174 460.8 S(id using up e).2 E(xcessi)
+-.15 E .3 -.15(ve r)-.25 H(esources on the other end.).15 E(The def)5 E
+(ault is \214v)-.1 E 2.5(em)-.15 G(inutes.)-2.5 E
+(ConnectionRateThrottle=)102 477 Q F2(N)A F1 .21
+([no short name] If set to a positi)174 489 R .511 -.15(ve v)-.25 H .211
+(alue, allo)-.1 F 2.711(wn)-.25 G 2.711(om)-2.711 G .211(ore than)-2.711
+F F2(N)2.711 E F1 .211(incoming daemon)2.711 F 1.776
+(connections in a one second period.)174 501 R 1.776
+(This is intended to \215atten out peaks and)6.776 F(allo)174 513 Q 2.5
+(wt)-.25 G(he load a)-2.5 E -.15(ve)-.2 G(rage checking to cut in.).15 E
+(Def)5 E(aults to zero \(no limits\).)-.1 E(DaemonPortOptions=)102 529.2
+Q F2(options)A F1([O] Set serv)174 541.2 Q(er SMTP options.)-.15 E
+(The options are)5 E F2 -.1(ke)2.5 G(y=value)-.2 E F1 2.5(pairs. Kno)2.5
+F(wn k)-.25 E -.15(ey)-.1 G 2.5(sa).15 G(re:)-2.5 E 52.83
+(Port Name/number)214 557.4 R(of listening port \(def)2.5 E
+(aults to "smtp"\))-.1 E 48.95(Addr Address)214 569.4 R(mask \(def)2.5 E
+(aults IN)-.1 E(ADDR_ANY\))-.35 E -.15(Fa)214 581.4 S 41.31
+(mily Address).15 F -.1(fa)2.5 G(mily \(def).1 E(aults to INET\))-.1 E
+44.5(Listen Size)214 593.4 R(of listen queue \(def)2.5 E(aults to 10\))
+-.1 E 21.72(SndBufSize Size)214 605.4 R(of TCP send b)2.5 E(uf)-.2 E
+(fer)-.25 E 21.17(RcvBufSize Size)214 617.4 R(of TCP recei)2.5 E .3 -.15
+(ve b)-.25 H(uf)-.05 E(fer)-.25 E(The)174 633.6 Q F2(Addr)2.5 E F1
+(ess mask may be a numeric address in dot notation or a netw)A
+(ork name.)-.1 E(Def)102 649.8 Q(aultCharSet=)-.1 E F2 -.15(ch)C(ar).15
+E(set)-.1 E F1 .16
+([no short name] When a message that has 8-bit characters b)174 661.8 R
+.161(ut is not in MIME for)-.2 F(-)-.2 E .495(mat is con)174 673.8 R
+-.15(ve)-.4 G .495
+(rted to MIME \(see the EightBitMode option\) a character set must be)
+.15 F .487(included in the Content-T)174 685.8 R .487(ype: header)-.8 F
+5.487(.T)-.55 G .488(his character set is normally set from the)-5.487 F
+.133(Charset= \214eld of the mailer descriptor)174 697.8 R 5.133(.I)-.55
+G 2.633(ft)-5.133 G .133(hat is not set, the v)-2.633 F .133
+(alue of this option is)-.25 F 2.5(used. If)174 709.8 R
+(this option is not set, the v)2.5 E(alue \231unkno)-.25 E
+(wn-8bit\232 is used.)-.25 E EP
+%%Page: 43 39
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-43)195.86 E/F1 10/Times-Roman@0 SF(Def)102 96 Q(aultUser=)-.1 E
+/F2 10/Times-Italic@0 SF(user:gr)A(oup)-.45 E F1 .013([u] Set the def)
+174 108 R .013(ault userid for mailers to)-.1 F F2(user:gr)2.513 E(oup)
+-.45 E F1 5.013(.I)C(f)-5.013 E F2(gr)2.513 E(oup)-.45 E F1 .014
+(is omitted and)2.514 F F2(user)2.514 E F1(is)2.514 E 4.307(au)174 120 S
+1.807(ser name \(as opposed to a numeric user id\) the def)-4.307 F
+1.806(ault group listed in the)-.1 F 1.153
+(/etc/passwd \214le for that user is used as the def)174 132 R 1.153
+(ault group.)-.1 F(Both)6.153 E F2(user)3.653 E F1(and)3.653 E F2(gr)
+3.653 E(oup)-.45 E F1 1.153(may be numeric.)174 144 R 1.152
+(Mailers without the)6.152 F F2(S)3.652 E F1 1.152
+(\215ag in the mailer de\214nition will run as)3.652 F .142(this user)
+174 158 R 5.142(.D)-.55 G(ef)-5.142 E .142(aults to 1:1.)-.1 F .142
+(The v)5.142 F .142(alue can also be gi)-.25 F -.15(ve)-.25 G 2.642(na)
+.15 G 2.642(sas)-2.642 G .142(ymbolic user name.)-2.642 F/F3 7
+/Times-Roman@0 SF(19)-4 I F1(Deli)102 174.2 Q -.15(ve)-.25 G(ryMode=).15
+E F2(x)A F1([d] Deli)4 E -.15(ve)-.25 G 2.5(ri).15 G 2.5(nm)-2.5 G(ode)
+-2.5 E F2(x)2.5 E F1 5(.L)C -2.25 -.15(eg a)-5 H 2.5(lm).15 G(odes are:)
+-2.5 E 17.22(iD)214 190.4 S(eli)-17.22 E -.15(ve)-.25 G 2.5(ri).15 G
+(nteracti)-2.5 E -.15(ve)-.25 G(ly \(synchronously\)).15 E 15(bD)214
+202.4 S(eli)-15 E -.15(ve)-.25 G 2.5(ri).15 G 2.5(nb)-2.5 G
+(ackground \(asynchronously\))-2.5 E 15(qJ)214 214.4 S
+(ust queue the message \(deli)-15 E -.15(ve)-.25 G 2.5(rd).15 G
+(uring queue run\))-2.5 E 15(dD)214 226.4 S(efer deli)-15 E -.15(ve)-.25
+G(ry and all map lookups \(deli).15 E -.15(ve)-.25 G 2.5(rd).15 G
+(uring queue run\))-2.5 E(Def)174 242.6 Q .712(aults to `)-.1 F(`b')-.74
+E 3.212('i)-.74 G 3.212(fn)-3.212 G 3.211(oo)-3.212 G .711
+(ption is speci\214ed, `)-3.211 F(`i')-.74 E 3.211('i)-.74 G 3.211(fi)
+-3.211 G 3.211(ti)-3.211 G 3.211(ss)-3.211 G .711(peci\214ed b)-3.211 F
+.711(ut gi)-.2 F -.15(ve)-.25 G 3.211(nn).15 G 3.211(oa)-3.211 G -.18
+(rg)-3.211 G(u-).18 E .094(ment \(i.e., `)174 254.6 R(`Od')-.74 E 2.594
+('i)-.74 G 2.594(se)-2.594 G(qui)-2.594 E -.25(va)-.25 G .094(lent to `)
+.25 F(`Odi')-.74 E 2.594('\). The)-.74 F F0<ad76>2.594 E F1 .094
+(command line \215ag sets this to)2.594 F F0(i)2.594 E F1(.)A
+(DialDelay=)102 270.8 Q F2(sleeptime)A F1 .799
+([no short name] Dial-on-demand netw)174 282.8 R .798
+(ork connections can see timeouts if a con-)-.1 F .665
+(nection is opened before the call is set up.)174 294.8 R .665
+(If this is set to an interv)5.665 F .665(al and a con-)-.25 F .743
+(nection times out on the \214rst connection being attempted)174 306.8 R
+F2(sendmail)3.242 E F1 .742(will sleep for)3.242 F .31
+(this amount of time and try ag)174 318.8 R 2.81(ain. This)-.05 F .31
+(should gi)2.81 F .61 -.15(ve y)-.25 H .31(our system time to establish)
+.15 F 1.543(the connection to your service pro)174 330.8 R(vider)-.15 E
+6.543(.U)-.55 G 1.543(nits def)-6.543 F 1.542
+(ault to seconds, so \231DialDe-)-.1 F(lay=5\232 uses a \214v)174 342.8
+Q 2.5(es)-.15 G(econd delay)-2.5 E 5(.D)-.65 G(ef)-5 E
+(aults to zero \(no retry\).)-.1 E(DontExpandCnames)102 359 Q .559([no short name] The standards say that all host addresses used in a mail message)
+174 371 R 1.408(must be fully canonical.)174 383 R -.15(Fo)6.407 G 3.907
+(re).15 G 1.407(xample, if your host is named \231Cruft.F)-4.057 F
+(oo.ORG\232)-.15 E 1.462(and also has an alias of \231FTP)174 395 R(.F)
+-1.11 E 1.462(oo.ORG\232, the former name must be used at all)-.15 F
+2.631(times. This)174 407 R .131
+(is enforced during host name canoni\214cation \($[ ... $] lookups\).)
+2.631 F .13(If this)5.13 F .661(option is set, the protocols are ignored and the \231wrong\232 thing is done.)
+174 419 R(Ho)5.662 E(we)-.25 E -.15(ve)-.25 G -.4(r,).15 G .455
+(the IETF is mo)174 431 R .455(ving to)-.15 F -.1(wa)-.25 G .455
+(rd changing this standard, so the beha).1 F .455(viour may become)-.2 F
+3.009(acceptable. Please)174 443 R .509(note that hosts do)3.009 F .509
+(wnstream may still re)-.25 F .509(write the address to be)-.25 F
+(the true canonical name ho)174 455 Q(we)-.25 E -.15(ve)-.25 G -.55(r.)
+.15 G 6.17(DontInitGroups [no)102 471.2 R .25(short name] If set,)2.75 F
+F2(sendmail)2.75 E F1 .25(will a)2.75 F -.2(vo)-.2 G .25
+(id using the initgroups\(3\) call.).2 F .25(If you are)5.25 F .583(running NIS, this causes a sequential scan of the groups.byname map, which can)
+174 483.2 R .436(cause your NIS serv)174 495.2 R .436(er to be badly o)
+-.15 F -.15(ve)-.15 G .435(rloaded in a lar).15 F .435(ge domain.)-.18 F
+.435(The cost of this)5.435 F .697(is that the only group found for users will be their primary group \(the one in the)
+174 507.2 R(passw)174 519.2 Q 1.189(ord \214le\), which will mak)-.1 F
+3.689<658c>-.1 G 1.189(le access permissions some)-3.689 F 1.189
+(what more restric-)-.25 F(ti)174 531.2 Q -.15(ve)-.25 G 5(.H).15 G
+(as no ef)-5 E(fect on systems that don')-.25 E 2.5(th)-.18 G -2.25 -.2
+(av e)-2.5 H(group lists.)2.7 E -1.61(DontPruneRoutes [R])102 547.4 R
+(Normally)3.905 E(,)-.65 E F2(sendmail)3.905 E F1 1.405
+(tries to eliminate an)3.905 F 3.905(yu)-.15 G 1.405(nnecessary e)-3.905
+F 1.405(xplicit routes when)-.15 F .155
+(sending an error message \(as discussed in RFC 1123 \247 5.2.6\).)174
+559.4 R -.15(Fo)5.154 G 2.654(re).15 G .154(xample, when)-2.804 F
+(sending an error message to)174 571.4 Q(<@kno)214 587.6 Q(wn1,@kno)-.25
+E(wn2,@kno)-.25 E(wn3:user@unkno)-.25 E(wn>)-.25 E F2(sendmail)174 603.8
+Q F1 1.155(will strip of)3.655 F 3.655(ft)-.25 G 1.155(he \231@kno)
+-3.655 F(wn1,@kno)-.25 E 1.155(wn2\232 in order to mak)-.25 F 3.655(et)
+-.1 G 1.155(he route as)-3.655 F .813(direct as possible.)174 615.8 R
+(Ho)5.813 E(we)-.25 E -.15(ve)-.25 G 1.613 -.4(r, i).15 H 3.313(ft).4 G
+(he)-3.313 E F0(R)3.313 E F1 .812
+(option is set, this will be disabled, and the)3.313 F .009
+(mail will be sent to the \214rst address in the route, e)174 627.8 R
+-.15(ve)-.25 G 2.51(ni).15 G 2.51(fl)-2.51 G .01(ater addresses are kno)
+-2.51 F(wn.)-.25 E(This may be useful if you are caught behind a \214re)
+174 639.8 Q -.1(wa)-.25 G(ll.).1 E(DoubleBounceAddress=)102 656 Q F2
+(err)A(or)-.45 E(-addr)-.2 E(ess)-.37 E F1 .504([no short name] If an error occurs when sending an error message, send the error)
+174 668 R 1.999(report \(termed a \231double bounce\232 because it is an error \231bounce\232 that occurs)
+174 680 R .32 LW 76 689.6 72 689.6 DL 80 689.6 76 689.6 DL 84 689.6 80
+689.6 DL 88 689.6 84 689.6 DL 92 689.6 88 689.6 DL 96 689.6 92 689.6 DL
+100 689.6 96 689.6 DL 104 689.6 100 689.6 DL 108 689.6 104 689.6 DL 112
+689.6 108 689.6 DL 116 689.6 112 689.6 DL 120 689.6 116 689.6 DL 124
+689.6 120 689.6 DL 128 689.6 124 689.6 DL 132 689.6 128 689.6 DL 136
+689.6 132 689.6 DL 140 689.6 136 689.6 DL 144 689.6 140 689.6 DL 148
+689.6 144 689.6 DL 152 689.6 148 689.6 DL 156 689.6 152 689.6 DL 160
+689.6 156 689.6 DL 164 689.6 160 689.6 DL 168 689.6 164 689.6 DL 172
+689.6 168 689.6 DL 176 689.6 172 689.6 DL 180 689.6 176 689.6 DL 184
+689.6 180 689.6 DL 188 689.6 184 689.6 DL 192 689.6 188 689.6 DL 196
+689.6 192 689.6 DL 200 689.6 196 689.6 DL 204 689.6 200 689.6 DL 208
+689.6 204 689.6 DL 212 689.6 208 689.6 DL 216 689.6 212 689.6 DL/F4 5
+/Times-Roman@0 SF(19)93.6 700 Q/F5 8/Times-Roman@0 SF(The old)3.2 I/F6 8
+/Times-Bold@0 SF(g)2 E F5(option has been combined into the)2 E F6
+(DefaultUser)2 E F5(option.)2 E EP
+%%Page: 44 40
+%%BeginPageSetup
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+%%EndPageSetup
+/F0 10/Times-Bold@0 SF 193.36(SMM:08-44 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF .818(when trying to send another error \231bounce\232\) to the indicated address.)
+174 96 R .817(If not set,)5.817 F(def)174 108 Q
+(aults to \231postmaster\232.)-.1 E(EightBitMode=)102 124.2 Q/F2 10
+/Times-Italic@0 SF(action)A F1 1.955
+([8] Set handling of eight-bit data.)174 136.2 R 1.955(There are tw)
+6.955 F 4.456(ok)-.1 G 1.956(inds of eight-bit data: that)-4.456 F 3.335
+(declared as such using the)174 148.2 R F0(BOD)5.834 E(Y=8BITMIME)-.4 E
+F1 3.334(ESMTP declaration or the)5.834 F F0(\255B8BITMIME)174 160.2 Q
+F1 .948
+(command line \215ag, and undeclared 8-bit data, that is, input that)
+3.448 F 1.18(just happens to be eight bits.)174 172.2 R 1.18
+(There are three basic operations that can happen:)6.18 F .995
+(undeclared 8-bit data can be automatically con)174 184.2 R -.15(ve)-.4
+G .996(rted to 8BITMIME, undeclared).15 F .887
+(8-bit data can be passed as-is without con)174 196.2 R -.15(ve)-.4 G
+.887(rsion to MIME \(`).15 F .887(`just send 8')-.74 F .886('\), and)
+-.74 F 1.794(declared 8-bit data can be con)174 208.2 R -.15(ve)-.4 G
+1.794(rted to 7-bits for transmission to a non-8BIT).15 F(-)-.92 E
+(MIME mailer)174 220.2 Q 5(.T)-.55 G(he possible)-5 E F2(action)2.5 E F1
+2.5(sa)C(re:)-2.5 E 11.11(sR)219 236.4 S
+(eject undeclared 8-bit data \(`)-11.11 E(`strict')-.74 E('\))-.74 E
+7.22(mC)219 248.4 S(on)-7.22 E -.15(ve)-.4 G
+(rt undeclared 8-bit data to MIME \(`).15 E(`mime')-.74 E('\))-.74 E 10
+(pP)219 260.4 S(ass undeclared 8-bit data \(`)-10.15 E(`pass')-.74 E
+('\))-.74 E 2.228
+(In all cases properly declared 8BITMIME data will be con)174 276.6 R
+-.15(ve)-.4 G 2.227(rted to 7BIT as).15 F(needed.)174 288.6 Q
+(ErrorHeader=)102 304.8 Q F2(\214le-or)A(-messa)-.2 E -.1(ge)-.1 G F1
+.486([E] Prepend error messages with the indicated message.)174 316.8 R
+.486(If it be)5.486 F .487(gins with a slash,)-.15 F .246(it is assumed to be the pathname of a \214le containing a message \(this is the recom-)
+174 328.8 R .86(mended setting\).)174 340.8 R .86
+(Otherwise, it is a literal message.)5.86 F .86
+(The error \214le might contain)5.86 F 1.116(the name, email address, and/or phone number of a local postmaster who could)
+174 352.8 R(pro)174 364.8 Q .173(vide assistance in to end users.)-.15 F
+.174(If the option is missing or null, or if it names a)5.173 F
+(\214le which does not e)174 376.8 Q
+(xist or which is not readable, no message is printed.)-.15 E
+(ErrorMode=)102 393 Q F2(x)A F1([e] Dispose of errors using mode)17.49 E
+F2(x)2.5 E F1 5(.T)C(he v)-5 E(alues for)-.25 E F2(x)2.5 E F1(are:)2.5 E
+15(pP)214 409.2 S(rint error messages \(def)-15 E(ault\))-.1 E 15(qN)214
+421.2 S 2.5(om)-15 G(essages, just gi)-2.5 E .3 -.15(ve ex)-.25 H
+(it status).15 E 12.22(mM)214 433.2 S(ail back errors)-12.22 E 12.78(wW)
+214 445.2 S(rite back errors \(mail if user not logged in\))-12.78 E
+15.56(eM)214 457.2 S(ail back errors and gi)-15.56 E .3 -.15(ve z)-.25 H
+(ero e).15 E(xit stat al)-.15 E -.1(wa)-.1 G(ys).1 E -.15(Fa)102 477.6 S
+(llbackMXhost=).15 E F2(fallbac)A(khost)-.2 E F1 .797
+([V] If speci\214ed, the)174 489.6 R F2(fallbac)3.297 E(khost)-.2 E F1
+.797(acts lik)3.297 F 3.296(eav)-.1 G .796(ery lo)-3.446 F 3.296(wp)-.25
+G .796(riority MX on e)-3.296 F -.15(ve)-.25 G .796(ry host.).15 F
+(This is intended to be used by sites with poor netw)174 501.6 Q
+(ork connecti)-.1 E(vity)-.25 E(.)-.65 E -.15(Fo)102 517.8 S 16.88
+(rkEachJob [Y]).15 F .707(If set, deli)3.207 F -.15(ve)-.25 G 3.207(re)
+.15 G .708(ach job that is run from the queue in a separate process.)
+-3.207 F(Use)5.708 E .275(this option if you are short of memory)174
+529.8 R 2.774(,s)-.65 G .274(ince the def)-2.774 F .274
+(ault tends to consume consid-)-.1 F
+(erable amounts of memory while the queue is being processed.)174 541.8
+Q -.15(Fo)102 558 S(rw).15 E(ardP)-.1 E(ath=)-.15 E F2(path)A F1 1.511
+([J] Set the path for searching for users' .forw)174 570 R 1.512
+(ard \214les.)-.1 F 1.512(The def)6.512 F 1.512(ault is \231$z/.for)-.1
+F(-)-.2 E -.1(wa)174 582 S 5.8(rd\232. Some).1 F 3.299
+(sites that use the automounter may prefer to change this to)5.8 F
+(\231/v)174 594 Q(ar/forw)-.25 E 1.696(ard/$u\232 to search a \214le with the same name as the user in a system)
+-.1 F(directory)174 606 Q 5.488(.I)-.65 G 2.988(tc)-5.488 G .488
+(an also be set to a sequence of paths separated by colons;)-2.988 F F2
+(sendmail)2.987 E F1 .831
+(stops at the \214rst \214le it can successfully and safely open.)174
+618 R -.15(Fo)5.831 G 3.331(re).15 G .831(xample, \231/v)-3.481 F
+(ar/for)-.25 E(-)-.2 E -.1(wa)174 630 S(rd/$u:$z/.forw).1 E .277
+(ard\232 will search \214rst in /v)-.1 F(ar/forw)-.25 E(ard/)-.1 E F2
+(username)A F1 .276(and then in)2.777 F F2(~user)2.776 E(-)-.2 E(name)
+174 642 Q F1(/.forw)A(ard \(b)-.1 E
+(ut only if the \214rst \214le does not e)-.2 E(xist\).)-.15 E
+(HelpFile=)102 658.2 Q F2(\214le)A F1
+([H] Specify the help \214le for SMTP)19.14 E(.)-1.11 E(HoldExpensi)102
+674.4 Q 8.54 -.15(ve [)-.25 H 1.393(c] If an outgoing mailer is mark).15
+F 1.393(ed as being e)-.1 F(xpensi)-.15 E -.15(ve)-.25 G 3.894(,d).15 G
+(on')-3.894 E 3.894(tc)-.18 G 1.394(onnect immedi-)-3.894 F(ately)174
+686.4 Q 5.268(.T)-.65 G .268(his requires that queueing be compiled in, since it will depend on a queue)
+-5.268 F(run process to actually send the mail.)174 698.4 Q EP
+%%Page: 45 41
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-45)195.86 E/F1 10/Times-Roman@0 SF(HostsFile=)102 96 Q/F2 10
+/Times-Italic@0 SF(path)A F1 .026([no short name] The path to the hosts database, normally \231/etc/hosts\232.)
+10.24 F .026(This option)5.026 F 1.417(is only consulted when sendmail is canonifying addresses, and then only when)
+174 108 R .783
+(\231\214les\232 is in the \231hosts\232 service switch entry)174 120 R
+5.784(.I)-.65 G 3.284(np)-5.784 G(articular)-3.284 E 3.284(,t)-.4 G .784
+(his \214le is)-3.284 F F2(ne)3.284 E(ver)-.15 E F1(used)3.284 E .202(when looking up host addresses; that is under the control of the system)
+174 132 R F2 -.1(ge)2.702 G(thostby-).1 E(name)174 144 Q F1
+(\(3\) routine.)A(HostStatusDirectory=)102 160.2 Q F2(path)A F1 .43
+([no short name] The location of the long term host status information.)
+174 172.2 R .43(When set,)5.43 F 1.39
+(information about the status of hosts \(e.g., host do)174 184.2 R 1.39
+(wn or not accepting connec-)-.25 F .162
+(tions\) will be shared between all)174 196.2 R F2(sendmail)2.663 E F1
+.163(processes; normally)2.663 F 2.663(,t)-.65 G .163
+(his information is)-2.663 F .123(only held within a single queue run.)
+174 208.2 R .123(This option requires a connection cache of at)5.123 F
+.688(least 1 to function.)174 220.2 R .688(If the option be)5.688 F .688
+(gins with a leading `/', it is an absolute path-)-.15 F .617
+(name; otherwise, it is relati)174 232.2 R .917 -.15(ve t)-.25 H 3.117
+(ot).15 G .617(he mail queue directory)-3.117 F 5.617(.A)-.65 G .617
+(suggested v)-2.5 F .616(alue for)-.25 F .558(sites desiring persistent host status is \231.hoststat\232 \(i.e., a subdirectory of the queue)
+174 244.2 R(directory\).)174 256.2 Q 24.51(IgnoreDots [i])102 272.4 R
+1.172(Ignore dots in incoming messages.)3.672 F 1.172(This is al)6.172 F
+-.1(wa)-.1 G 1.171(ys disabled \(that is, dots are).1 F(al)174 284.4 Q
+-.1(wa)-.1 G(ys accepted\) when reading SMTP mail.).1 E(LogLe)102 300.6
+Q -.15(ve)-.25 G(l=).15 E F2(n)A F1([L] Set the def)22.88 E(ault log le)
+-.1 E -.15(ve)-.25 G 2.5(lt).15 G(o)-2.5 E F2(n)2.5 E F1 5(.D)C(ef)-5 E
+(aults to 9.)-.1 E(M)102 316.8 Q F2 1.666(xv)C(alue)-1.666 E F1 .255
+([no long v)35.344 F .255(ersion] Set the macro)-.15 F F2(x)2.755 E F1
+(to)2.755 E F2(value)2.755 E F1 5.255(.T)C .255
+(his is intended only for use from the)-5.255 F(command line.)174 328.8
+Q(The)5 E F0<ad4d>2.5 E F1(\215ag is preferred.)2.5 E 11.17
+(MatchGECOS [G])102 345 R(Allo)3.334 E 3.334(wf)-.25 G .834
+(uzzy matching on the GECOS \214eld.)-3.334 F .833
+(If this \215ag is set, and the usual)5.833 F .867(user name lookups f)
+174 357 R .867(ail \(that is, there is no alias with this name and a)-.1
+F F2 -.1(ge)3.368 G(tpwnam).1 E F1 -.1(fa)174 369 S 1.155
+(ils\), sequentially search the passw).1 F 1.155
+(ord \214le for a matching entry in the GECOS)-.1 F 3.696(\214eld. This)
+174 381 R 1.196(also requires that MA)3.696 F 1.196
+(TCHGECOS be turned on during compilation.)-1.11 F
+(This option is not recommended.)174 393 Q(MaxDaemonChildren=)102 409.2
+Q F2(N)A F1 .54([no short name] If set,)174 421.2 R F2(sendmail)3.039 E
+F1 .539(will refuse connections when it has more than)3.039 F F2(N)3.039
+E F1 1.086(children processing incoming mail.)174 433.2 R 1.087
+(This does not limit the number of outgoing)6.086 F 3.37
+(connections. If)174 445.2 R .87
+(not set, there is no limit to the number of children -- that is, the)
+3.37 F(system load a)174 457.2 Q -.15(ve)-.2 G(raging controls this.).15
+E(MaxHopCount=)102 473.4 Q F2(N)A F1 1.237([h] The maximum hop count.)
+174 485.4 R 1.237(Messages that ha)6.237 F 1.538 -.15(ve b)-.2 H 1.238
+(een processed more than).15 F F2(N)3.738 E F1
+(times are assumed to be in a loop and are rejected.)174 497.4 Q(Def)5 E
+(aults to 25.)-.1 E(MaxHostStatAge=)102 513.6 Q F2 -.1(age)C F1 .439
+([no short name] Not yet implemented.)174 525.6 R .438
+(This option speci\214es ho)5.438 F 2.938(wl)-.25 G .438
+(ong host status)-2.938 F .36(information will be retained.)174 537.6 R
+-.15(Fo)5.36 G 2.86(re).15 G .36(xample, if a host is found to be do)
+-3.01 F .36(wn, connec-)-.25 F .246
+(tions to that host will not be retried for this interv)174 549.6 R
+2.746(al. The)-.25 F .246(units def)2.746 F .246(ault to minutes.)-.1 F
+(MaxMessageSize=)102 565.8 Q F2(N)A F1 2.562
+([no short name] Specify the maximum message size to be adv)174 577.8 R
+2.563(ertised in the)-.15 F(ESMTP EHLO response.)174 589.8 Q
+(Messages lar)5 E(ger than this will be rejected.)-.18 E
+(MaxQueueRunSize=)102 606 Q F2(N)A F1 .677([no short name] The maximum number of jobs that will be processed in a single)
+174 618 R .501(queue run.)174 630 R .501
+(If not set, there is no limit on the size.)5.501 F .501(If you ha)5.501
+F .802 -.15(ve ve)-.2 H .502(ry lar).15 F .502(ge queues)-.18 F .445
+(or a v)174 642 R .445(ery short queue run interv)-.15 F .445
+(al this could be unstable.)-.25 F(Ho)5.445 E(we)-.25 E -.15(ve)-.25 G
+1.245 -.4(r, s).15 H .445(ince the \214rst).4 F F2(N)174 654 Q F1 1.115
+(jobs in queue directory order are run \(rather than the)3.615 F F2(N)
+3.615 E F1 1.115(highest priority jobs\))3.615 F .136
+(this should be set as high as possible to a)174 666 R -.2(vo)-.2 G .136
+(id \231losing\232 jobs that happen to f).2 F .136(all late)-.1 F
+(in the queue directory)174 678 Q(.)-.65 E(MeT)102 694.2 Q 40.86(oo [m])
+-.8 F(Send to me too, e)2.5 E -.15(ve)-.25 G 2.5(ni).15 G 2.5(fIa)-2.5 G
+2.5(mi)-2.5 G 2.5(na)-2.5 G 2.5(na)-2.5 G(lias e)-2.5 E(xpansion.)-.15 E
+(MinFreeBlocks=)102 710.4 Q F2(N)A F1 1.538([b] Insist on at least)174
+722.4 R F2(N)4.038 E F1 1.539
+(blocks free on the \214lesystem that holds the queue \214les)4.039 F EP
+%%Page: 46 42
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF 193.36(SMM:08-46 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF .846
+(before accepting email via SMTP)174 96 R 5.846(.I)-1.11 G 3.346(ft)
+-5.846 G .846(here is insuf)-3.346 F .846(\214cient space)-.25 F/F2 10
+/Times-Italic@0 SF(sendmail)3.346 E F1(gi)3.345 E -.15(ve)-.25 G 3.345
+(sa).15 G(452 response to the MAIL command.)174 108 Q(This in)5 E
+(vites the sender to try ag)-.4 E(ain later)-.05 E(.)-.55 E
+(MinQueueAge=age)102 124.2 Q .886([no short name] Don')174 136.2 R 3.386
+(tp)-.18 G .886(rocess an)-3.386 F 3.386(yq)-.15 G .886
+(ueued jobs that ha)-3.386 F 1.187 -.15(ve b)-.2 H .887
+(een in the queue less).15 F 1.9(than the indicated time interv)174
+148.2 R 4.399(al. This)-.25 F 1.899(is intended to allo)4.399 F 4.399
+(wy)-.25 G 1.899(ou to get respon-)-4.399 F(si)174 160.2 Q -.15(ve)-.25
+G .665(ness by processing the queue f).15 F .665
+(airly frequently without thrashing your system)-.1 F
+(by trying jobs too often.)174 172.2 Q(The def)5 E
+(ault units are minutes.)-.1 E(MustQuoteChars=)102 188.4 Q F2(s)A F1
+1.253([no short name] Sets the list of characters that must be quoted if used in a full)
+174 200.4 R 1.217(name that is in the phrase part of a `)174 212.4 R
+1.217(`phrase <address>')-.74 F 3.717('s)-.74 G 3.717(yntax. The)-3.717
+F(def)3.718 E 1.218(ault is)-.1 F -.74(``)174 224.4 S<b42e>.74 E -.74
+('')-.7 G 5(.T).74 G(he characters `)-5 E(`@,;:\\\(\)[]')-.74 E 2.5('a)
+-.74 G(re al)-2.5 E -.1(wa)-.1 G(ys added to this list.).1 E
+(NoRecipientAction)102 240.6 Q .555([no short name] The action to tak)
+174 252.6 R 3.055(ew)-.1 G .555(hen you recei)-3.055 F .855 -.15(ve a m)
+-.25 H .554(essage that has no v).15 F(alid)-.25 E .625
+(recipient headers \(T)174 264.6 R .625(o:, Cc:, Bcc:, or Apparently-T)
+-.8 F .625(o: \212 the last included for back)-.8 F .109
+(compatibility with old)174 276.6 R F2(sendmail)2.609 E F1 2.609
+(s\). It)B .109(can be)2.609 F F0(None)2.608 E F1 .108
+(to pass the message on unmod-)2.608 F .296
+(i\214ed, which violates the protocol,)174 288.6 R F0(Add-T)2.796 E(o)
+-.92 E F1 .296(to add a T)2.796 F .296(o: header with an)-.8 F 2.797(yr)
+-.15 G(ecipients)-2.797 E 1.638(it can \214nd in the en)174 300.6 R -.15
+(ve)-.4 G 1.638(lope \(which might e).15 F 1.638
+(xpose Bcc: recipients\),)-.15 F F0(Add-A)4.138 E(ppar)-.25 E(-)-.37 E
+(ently-T)174 312.6 Q(o)-.92 E F1 .337(to add an Apparently-T)2.837 F
+.337(o: header \(this is only for back-compatibility and)-.8 F .842
+(is of)174 324.6 R .841(\214cially deprecated\),)-.25 F F0(Add-T)3.341 E
+(o-Undisclosed)-.92 E F1 .841(to add a header \231T)3.341 F .841
+(o: undisclosed-)-.8 F .397(recipients:;\232 to mak)174 336.6 R 2.897
+(et)-.1 G .397(he header le)-2.897 F -.05(ga)-.15 G 2.897(lw).05 G .397
+(ithout disclosing an)-2.897 F .398(ything, or)-.15 F F0(Add-Bcc)2.898 E
+F1(to)2.898 E(add an empty Bcc: header)174 348.6 Q(.)-.55 E 1.18
+(OldStyleHeaders [o])102 364.8 R 1.713(Assume that the headers may be in old format, i.e., spaces delimit names.)
+4.214 F 1.068(This actually turns on an adapti)174 376.8 R 1.368 -.15
+(ve a)-.25 H 1.068(lgorithm: if an).15 F 3.569(yr)-.15 G 1.069
+(ecipient address contains a)-3.569 F 1.681
+(comma, parenthesis, or angle brack)174 388.8 R 1.681
+(et, it will be assumed that commas already)-.1 F -.15(ex)174 400.8 S
+2.825(ist. If).15 F .325
+(this \215ag is not on, only commas delimit names.)2.825 F .325
+(Headers are al)5.325 F -.1(wa)-.1 G .325(ys out-).1 F
+(put with commas between the names.)174 412.8 Q(Def)5 E(aults to of)-.1
+E(f.)-.25 E(OperatorChars=)102 429 Q F2 -.15(ch)C(arlist).15 E F1 1.438
+([$o macro] The list of characters that are considered to be \231operators\232, that is,)
+174 441 R .82(characters that delimit tok)174 453 R 3.32(ens. All)-.1 F
+.82(operator characters are tok)3.32 F .82(ens by themselv)-.1 F(es;)
+-.15 E .078(sequences of non-operator characters are also tok)174 465 R
+2.578(ens. White)-.1 F .078(space characters sep-)2.578 F .269
+(arate tok)174 477 R .269(ens b)-.1 F .269(ut are not tok)-.2 F .269
+(ens themselv)-.1 F .269(es \212 for e)-.15 F .269(xample, \231)-.15 F
+.27(AAA.BBB\232 has three)-.8 F(tok)174 489 Q .433(ens, b)-.1 F .433
+(ut \231)-.2 F .433(AAA BBB\232 has tw)-.8 F 2.933(o. If)-.1 F .433
+(not set, OperatorChars def)2.933 F .433(aults to \231.)-.1 F 1.666
+(:@[])1.666 G<9a3b>-1.666 E(additionally)174 501 Q 2.5(,t)-.65 G
+(he characters \231\()-2.5 E 1.666(\)<>,;)1.666 G 2.5<9a61>-1.666 G
+(re al)-2.5 E -.1(wa)-.1 G(ys operators.).1 E(PostmasterCop)102 517.2 Q
+(y=)-.1 E F2(postmaster)A F1 .003
+([P] If set, copies of error messages will be sent to the named)174
+529.2 R F2(postmaster)2.504 E F1 5.004(.O)C .004(nly the)-5.004 F .627
+(header of the f)174 541.2 R .627(ailed message is sent.)-.1 F .626
+(Since most errors are user problems, this is)5.626 F .453
+(probably not a good idea on lar)174 553.2 R .453(ge sites, and ar)-.18
+F .453(guably contains all sorts of pri)-.18 F -.25(va)-.25 G -.15(cy)
+.25 G 1.979(violations, b)174 565.2 R 1.978
+(ut it seems to be popular with certain operating systems v)-.2 F
+(endors.)-.15 E(Def)174 577.2 Q(aults to no postmaster copies.)-.1 E
+(Pri)102 593.4 Q -.25(va)-.25 G -.15(cy).25 G(Options=).15 E F2
+(opt,opt,...)1.666 E F1 1.191([p] Set the pri)174 605.4 R -.25(va)-.25 G
+-.15(cy).25 G F2(opt)3.841 E F1 3.691(ions. `)B(`Pri)-.74 E -.25(va)-.25
+G -.15(cy).25 G 2.671 -.74('' i).15 H 3.692(sr).74 G 1.192
+(eally a misnomer; man)-3.692 F 3.692(yo)-.15 G 3.692(ft)-3.692 G 1.192
+(hese are)-3.692 F .929(just a w)174 617.4 R .928
+(ay of insisting on stricter adherence to the SMTP protocol.)-.1 F(The)
+5.928 E F2(opt)3.428 E F1(ions)A(can be selected from:)174 629.4 Q EP
+%%Page: 47 43
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-47)195.86 E/F1 10/Times-Roman@0 SF 40.26(public Allo)214 96 R
+2.5(wo)-.25 G(pen access)-2.5 E 11.38(needmailhelo Insist)214 108 R
+(on HELO or EHLO command before MAIL)2.5 E(neede)214 120 Q 9.87
+(xpnhelo Insist)-.15 F(on HELO or EHLO command before EXPN)2.5 E(noe)214
+132 Q 35.97(xpn Disallo)-.15 F 2.5(wE)-.25 G(XPN entirely)-2.5 E 12.5
+(needvrfyhelo Insist)214 144 R(on HELO or EHLO command before VRFY)2.5 E
+(no)214 156 Q 38.75(vrfy Disallo)-.15 F 2.5(wV)-.25 G(RFY entirely)-2.5
+E 14.71(restrictmailq Restrict)214 168 R(mailq command)2.5 E 19.16
+(restrictqrun Restrict)214 180 R(\255q command line \215ag)2.5 E 24.16
+(noreceipts Don')214 192 R 2.5(tr)-.18 G(eturn success DSNs)-2.5 E(goa)
+214 204 Q -.1(wa)-.15 G 36.91(yD).1 G(isallo)-36.91 E 2.5(we)-.25 G
+(ssentially all SMTP status queries)-2.5 E(authw)214 216 Q 11.48
+(arnings Put)-.1 F(X-Authentication-W)2.5 E(arning: headers in messages)
+-.8 E .485(The \231goa)174 232.2 R -.1(wa)-.15 G .485
+(y\232 pseudo-\215ag sets all \215ags e).1 F .486
+(xcept \231restrictmailq\232 and \231restrictqrun\232.)-.15 F 1.175(If mailq is restricted, only people in the same group as the queue directory can)
+174 244.2 R .207(print the queue.)174 256.2 R .207
+(If queue runs are restricted, only root and the o)5.207 F .208
+(wner of the queue)-.25 F .066(directory can run the queue.)174 268.2 R
+.066(Authentication W)5.066 F .066(arnings add w)-.8 F .066
+(arnings about v)-.1 F(arious)-.25 E .77(conditions that may indicate attempts to spoof the mail system, such as using an)
+174 280.2 R(non-standard queue directory)174 292.2 Q(.)-.65 E
+(QueueDirectory=)102 308.4 Q/F2 10/Times-Italic@0 SF(dir)A F1
+([Q] Use the named)174 320.4 Q F2(dir)2.5 E F1(as the queue directory)
+2.5 E(.)-.65 E(QueueF)102 336.6 Q(actor=)-.15 E F2(factor)A F1 .614
+([q] Use)174 348.6 R F2(factor)3.114 E F1 .613
+(as the multiplier in the map function to decide when to just queue)
+3.114 F .415(up jobs rather than run them.)174 360.6 R .415(This v)5.415
+F .415(alue is di)-.25 F .415(vided by the dif)-.25 F .415
+(ference between the)-.25 F 1.004(current load a)174 372.6 R -.15(ve)-.2
+G 1.004(rage and the load a).15 F -.15(ve)-.2 G 1.004(rage limit \().15
+F F0(QueueLA)A F1 1.003(option\) to determine)3.503 F
+(the maximum message priority that will be sent.)174 384.6 Q(Def)5 E
+(aults to 600000.)-.1 E(QueueLA=)102 400.8 Q F2(LA)A F1 .164
+([x] When the system load a)15.26 F -.15(ve)-.2 G .165(rage e).15 F
+(xceeds)-.15 E F2(LA)2.665 E F1 2.665(,j)C .165
+(ust queue messages \(i.e., don')-2.665 F 2.665(tt)-.18 G(ry)-2.665 E
+(to send them\).)174 412.8 Q(Def)5 E(aults to 8.)-.1 E(QueueSortOrder=)
+102 429 Q F2(algorithm)A F1 .097([no short name] Sets the)174 441 R F2
+(algorithm)2.597 E F1 .096(used for sorting the queue.)2.597 F .096
+(Only the \214rst char)5.096 F(-)-.2 E 1.021(acter of the v)174 453 R
+1.021(alue is used.)-.25 F(Le)6.021 E -.05(ga)-.15 G 3.521(lv).05 G
+1.021(alues are \231host\232 \(to order by the name of the)-3.771 F .002
+(\214rst host name of the \214rst recipient\), \231time\232 \(to order by the submission time\), and)
+174 465 R .986(\231priority\232 \(to order by message priority\).)174
+477 R .986(Host ordering mak)5.986 F .986(es better use of the)-.1 F
+.453(connection cache, b)174 489 R .452(ut may tend to process lo)-.2 F
+2.952(wp)-.25 G .452(riority messages that go to a sin-)-2.952 F .218
+(gle host o)174 501 R -.15(ve)-.15 G 2.718(rh).15 G .218
+(igh priority messages that go to se)-2.718 F -.15(ve)-.25 G .219
+(ral hosts; it probably shouldn').15 F(t)-.18 E .524(be used on slo)174
+513 R 3.024(wn)-.25 G(etw)-3.024 E .524(ork links.)-.1 F -.35(Ti)5.524 G
+.524(me ordering is almost al).35 F -.1(wa)-.1 G .523
+(ys a bad idea, since).1 F 1.127(it allo)174 525 R 1.127(ws lar)-.25 F
+1.127(ge, b)-.18 F 1.127(ulk mail to go out before smaller)-.2 F 3.627
+(,p)-.4 G 1.127(ersonal mail, b)-3.627 F 1.128(ut may ha)-.2 F -.15(ve)
+-.2 G 1.363(applicability on some hosts with v)174 537 R 1.363(ery f)
+-.15 F 1.363(ast connections.)-.1 F 1.362(Priority ordering is the)6.363
+F(def)174 549 Q(ault.)-.1 E(QueueT)102 565.2 Q(imeout=)-.35 E F2
+(timeout)A F1 .355([T] A synon)174 577.2 R .355(ym for \231T)-.15 F
+2.855(imeout.queuereturn\232. Use)-.35 F .356
+(that form instead of the \231Queue-)2.855 F -.35(Ti)174 589.2 S
+(meout\232 form.).35 E(Resolv)102 605.4 Q(erOptions=)-.15 E F2(options)A
+F1 .128([I] Set resolv)174 617.4 R .127(er options.)-.15 F -1.11(Va)
+5.127 G .127(lues can be set using)1.11 F F0(+)2.627 E F2<8d61>A(g)-.1 E
+F1 .127(and cleared using)2.627 F F0<ad>2.627 E F2<8d61>A(g)-.1 E F1
+2.627(;t)C(he)-2.627 E F2<8d61>174 629.4 Q(g)-.1 E F1 5.013(sc)C 2.513
+(an be \231deb)-5.013 F 2.513(ug\232, \231aaonly\232, \231use)-.2 F
+2.514(vc\232, \231primary\232, \231igntc\232, \231recurse\232, \231def-)
+-.25 F .867(names\232, \231stayopen\232, or \231dnsrch\232.)174 641.4 R
+.867(The string \231HasW)5.867 F .867(ildcardMX\232 \(without a)-.4 F F0
+(+)3.367 E F1(or)3.367 E F0<ad>174 653.4 Q F1 3.82(\)c)C 1.32
+(an be speci\214ed to turn of)-3.82 F 3.82(fm)-.25 G 1.32(atching ag)
+-3.82 F 1.32(ainst MX records when doing name)-.05 F(canoni\214cations.)
+174 665.4 Q F0(N.B.)5.918 E F1 .917
+(Prior to 8.7, this option indicated that the name serv)5.918 F .917
+(er be)-.15 F 1.025(responding in order to accept addresses.)174 677.4 R
+1.025(This has been replaced by checking to)6.025 F .078(see if the \231dns\232 method is listed in the service switch entry for the \231hosts\232 service.)
+174 689.4 R(RunAsUser=)102 705.6 Q F2(user)A F1 3.752
+([no short name] The)2.48 F F2(user)6.252 E F1 3.752
+(parameter may be a user name \(look)6.252 F 3.753(ed up in)-.1 F F2
+(/etc/passwd)174 717.6 Q F1 3.046(\)o)C 3.046(ran)-3.046 G .546
+(umeric user id; either form can ha)-3.046 F .846 -.15(ve \231)-.2 H
+.545(:group\232 attached \(where).15 F EP
+%%Page: 48 44
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF 193.36(SMM:08-48 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF .965
+(group can be numeric or symbolic\).)174 96 R .966
+(If set to a non-zero \(non-root\) v)5.965 F(alue,)-.25 E/F2 10
+/Times-Italic@0 SF(send-)3.466 E(mail)174 110 Q F1 .484
+(will change to this user id shortly after startup)2.984 F/F3 7
+/Times-Roman@0 SF(20)-4 I F1 5.483(.T)4 K .483(his a)-5.483 F -.2(vo)-.2
+G .483(ids a certain class).2 F 1.844(of security problems.)174 122 R
+(Ho)6.844 E(we)-.25 E -.15(ve)-.25 G 2.644 -.4(r, t).15 H 1.844
+(his means that all \231.forw).4 F 1.844(ard\232 and \231:include:\232)
+-.1 F .194(\214les must be readable by the indicated)174 134 R F2(user)
+2.694 E F1 2.694(,a)C .193(nd on systems that don')-2.694 F 2.693(ts)
+-.18 G .193(upport the)-2.693 F(sa)174 146 Q -.15(ve)-.2 G 2.894(du).15
+G .394(id bit properly)-2.894 F 2.894(,a)-.65 G .394
+(ll \214les to be written must be writable by)-2.894 F F2(user)2.895 E
+F1 .395(and all pro-)2.895 F 1.218(grams will be e)174 158 R -.15(xe)
+-.15 G 1.218(cuted by).15 F F2(user)3.718 E F1 6.218(.I)C 3.717(ti)
+-6.218 G 3.717(sa)-3.717 G 1.217(lso incompatible with the)-3.717 F F0
+(SafeFileEn)3.717 E(vi-)-.4 E -.18(ro)174 170 S(nment).18 E F1 3.177
+(option. In)3.177 F .677(other w)3.177 F .677
+(ords, it may not actually add much to security on an)-.1 F -2.25 -.2
+(av e)174 182 T .624(rage system, and may in f).2 F .623
+(act detract from security \(because other \214le permis-)-.1 F 1.948
+(sions must be loosened\).)174 194 R(Ho)6.948 E(we)-.25 E -.15(ve)-.25 G
+2.748 -.4(r, i).15 H 4.448(ts).4 G 1.948(hould be useful on \214re)
+-4.448 F -.1(wa)-.25 G 1.949(lls and other).1 F(places where users don')
+174 206 Q 2.5(th)-.18 G -2.25 -.2(av e)-2.5 H
+(accounts and the aliases \214le is well constrained.)2.7 E(RecipientF)
+102 222.2 Q(actor=)-.15 E F2(fact)A F1 .638([y] The indicated)174 234.2
+R F2(fact)3.137 E F1 .637(or is added to the priority \(thus)B F2
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+(job\) for each recipient, i.e., this v)174 246.2 R .231
+(alue penalizes jobs with lar)-.25 F .231(ge numbers of recipi-)-.18 F
+2.5(ents. Def)174 258.2 R(aults to 30000.)-.1 E(RefuseLA=)102 274.4 Q F2
+(LA)A F1 1.012([X] When the system load a)13.59 F -.15(ve)-.2 G 1.012
+(rage e).15 F(xceeds)-.15 E F2(LA)3.512 E F1 3.512(,r)C 1.011
+(efuse incoming SMTP connec-)-3.512 F 2.5(tions. Def)174 286.4 R
+(aults to 12.)-.1 E(RetryF)102 302.6 Q(actor=)-.15 E F2(fact)A F1 .771
+([Z] The)3.74 F F2(fact)3.271 E F1 .771(or is added to the priority e)B
+-.15(ve)-.25 G .772(ry time a job is processed.).15 F .772(Thus, each)
+5.772 F .994(time a job is processed, its priority will be decreased by the indicated v)
+174 314.6 R 3.493(alue. In)-.25 F 1.107(most en)174 326.6 R 1.107
+(vironments this should be positi)-.4 F -.15(ve)-.25 G 3.608(,s).15 G
+1.108(ince hosts that are do)-3.608 F 1.108(wn are all too)-.25 F
+(often do)174 338.6 Q(wn for a long time.)-.25 E(Def)5 E
+(aults to 90000.)-.1 E(SafeFileEn)102 354.8 Q(vironment=)-.4 E F2(dir)A
+F1 .022([no short name] If this option is set,)174 366.8 R F2(sendmail)
+2.521 E F1 .021(will do a)2.521 F F2 -.15(ch)2.521 G -.45(ro).15 G(ot)
+.45 E F1 .021(\(2\) call into the indi-)B(cated)174 378.8 Q F2(dir)2.832
+E F1 .333(ectory before doing an)B 2.833<798c>-.15 G .333(le writes.)
+-2.833 F .333(If the \214le name speci\214ed by the user)5.333 F(be)174
+390.8 Q .588(gins with)-.15 F F2(dir)3.088 E F1 3.087(,t)C .587
+(hat partial path name will be stripped of)-3.087 F 3.087(fb)-.25 G .587
+(efore writing, so \(for)-3.087 F -.15(ex)174 402.8 S 2.224
+(ample\) if the SafeFileEn).15 F 2.224(vironment v)-.4 F 2.225
+(ariable is set to \231/safe\232 then aliases of)-.25 F 1.557(\231/safe/logs/\214le\232 and \231/logs/\214le\232 actually indicate the same \214le.)
+174 414.8 R(Additionally)6.556 E 4.056(,i)-.65 G(f)-4.056 E
+(this option is set,)174 426.8 Q F2(sendmail)2.5 E F1(refuses to deli)
+2.5 E -.15(ve)-.25 G 2.5(rt).15 G 2.5(os)-2.5 G(ymbolic links.)-2.5 E
+(Sa)102 443 Q -.15(ve)-.2 G 10.41(FromLine [f]).15 F(Sa)4.908 E 2.708
+-.15(ve U)-.2 H 2.408
+(nix-style \231From\232 lines at the front of headers.).15 F 2.409
+(Normally the)7.409 F 4.909(ya)-.15 G(re)-4.909 E
+(assumed redundant and discarded.)174 455 Q(SendMIMEErrors)102 471.2 Q
+.815([j] If set, send error messages in MIME format \(see RFC1521 and RFC1344 for)
+174 483.2 R 2.914(details\). If)174 495.2 R(disabled,)2.914 E F2
+(sendmail)2.914 E F1 .415(will not return the DSN k)2.914 F -.15(ey)-.1
+G -.1(wo).15 G .415(rd in response to an).1 F 1.731
+(EHLO and will not do Deli)174 507.2 R -.15(ve)-.25 G 1.731
+(ry Status Noti\214cation processing as described in).15 F(RFC1891.)174
+519.2 Q(ServiceSwitchFile=)102 535.4 Q F2(\214lename)A F1 1.532([no short name] If your host operating system has a service switch abstraction)
+174 547.4 R .003(\(e.g., /etc/nsswitch.conf on Solaris or /etc/svc.conf on Ultrix and DEC OSF/1\) that)
+174 559.4 R .814(service will be consulted and this option is ignored.)
+174 571.4 R .814(Otherwise, this is the name)5.814 F 1.083
+(of a \214le that pro)174 583.4 R 1.082
+(vides the list of methods used to implement particular services.)-.15 F
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+174 595.4 R 3.57(ords. The)-.1 F(\214rst)3.57 E -.1(wo)174 607.4 S 1.364
+(rd is the service name, and follo).1 F 1.363(wing w)-.25 F 1.363
+(ords are service types.)-.1 F 1.363(The services)6.363 F(that)174 619.4
+Q F2(sendmail)4.11 E F1 1.61
+(consults directly are \231aliases\232 and \231hosts.)4.11 F 6.61<9a53>
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+174 631.4 R -.15(ve)-.2 G 1.754(at that the appropriate support).15 F
+.791(must be compiled in before the service can be referenced\).)174
+643.4 R .791(If ServiceSwitchFile)5.791 F 1.303
+(is not speci\214ed, it def)174 655.4 R 1.303
+(aults to /etc/service.switch.)-.1 F 1.303(If that \214le does not e)
+6.303 F 1.303(xist, the)-.15 F(def)174 667.4 Q(ault switch is:)-.1 E .32
+LW 76 678.8 72 678.8 DL 80 678.8 76 678.8 DL 84 678.8 80 678.8 DL 88
+678.8 84 678.8 DL 92 678.8 88 678.8 DL 96 678.8 92 678.8 DL 100 678.8 96
+678.8 DL 104 678.8 100 678.8 DL 108 678.8 104 678.8 DL 112 678.8 108
+678.8 DL 116 678.8 112 678.8 DL 120 678.8 116 678.8 DL 124 678.8 120
+678.8 DL 128 678.8 124 678.8 DL 132 678.8 128 678.8 DL 136 678.8 132
+678.8 DL 140 678.8 136 678.8 DL 144 678.8 140 678.8 DL 148 678.8 144
+678.8 DL 152 678.8 148 678.8 DL 156 678.8 152 678.8 DL 160 678.8 156
+678.8 DL 164 678.8 160 678.8 DL 168 678.8 164 678.8 DL 172 678.8 168
+678.8 DL 176 678.8 172 678.8 DL 180 678.8 176 678.8 DL 184 678.8 180
+678.8 DL 188 678.8 184 678.8 DL 192 678.8 188 678.8 DL 196 678.8 192
+678.8 DL 200 678.8 196 678.8 DL 204 678.8 200 678.8 DL 208 678.8 204
+678.8 DL 212 678.8 208 678.8 DL 216 678.8 212 678.8 DL/F4 5
+/Times-Roman@0 SF(20)93.6 689.2 Q/F5 8/Times-Roman@0 SF(When running as a daemon, it changes to this user after accepting a connection b)
+3.2 I(ut before reading an)-.16 E(y)-.12 E F3(SMTP)2 E F5(commands.)2 E
+EP
+%%Page: 49 45
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-49)195.86 E/F1 10/Times-Roman@0 SF 38.6(aliases \214les)214 96 R
+44.7(hosts dns)214 108 R(nis \214les)2.5 E(The def)174 124.2 Q
+(ault \214le is \231/etc/service.switch\232.)-.1 E(Se)102 140.4 Q -.15
+(ve)-.25 G 12.12(nBitInput [7]).15 F .321(Strip input to se)2.821 F -.15
+(ve)-.25 G 2.821(nb).15 G .322(its for compatibility with old systems.)
+-2.821 F .322(This shouldn')5.322 F 2.822(tb)-.18 G(e)-2.822 E
+(necessary)174 152.4 Q(.)-.65 E(SingleLineFromHeader)102 168.6 Q .959
+([no short name] If set, From: lines that ha)174 180.6 R 1.258 -.15
+(ve e)-.2 H .958(mbedded ne).15 F .958(wlines are unwrapped)-.25 F .242
+(onto one line.)174 192.6 R .243
+(This is to get around a botch in Lotus Notes that apparently cannot)
+5.242 F(understand le)174 204.6 Q -.05(ga)-.15 G
+(lly wrapped RFC822 headers.).05 E(SingleThreadDeli)102 220.8 Q -.15(ve)
+-.25 G(ry).15 E .334([no short name] If set, a client machine will ne)
+174 232.8 R -.15(ve)-.25 G 2.833(rt).15 G .333(ry to open tw)-2.833 F
+2.833(oS)-.1 G .333(MTP connec-)-2.833 F 1.711(tions to a single serv)
+174 244.8 R 1.712(er machine at the same time, e)-.15 F -.15(ve)-.25 G
+4.212(ni).15 G 4.212(nd)-4.212 G(if)-4.212 E 1.712(ferent processes.)
+-.25 F .953(That is, if another)174 256.8 R/F2 10/Times-Italic@0 SF
+(sendmail)3.452 E F1 .952(is already talking to some host a ne)3.452 F
+(w)-.25 E F2(sendmail)3.452 E F1(will)3.452 E 2.387
+(not open another connection.)174 268.8 R 2.387(This property is of mix)
+7.387 F 2.388(ed v)-.15 F 2.388(alue; although this)-.25 F .386(reduces the load on the other machine, it can cause mail to be delayed \(for e)
+174 280.8 R(xam-)-.15 E .718(ple, if one)174 292.8 R F2(sendmail)3.218 E
+F1 .718(is deli)3.218 F -.15(ve)-.25 G .718(ring a huge message, other)
+.15 F F2(sendmail)3.219 E F1 3.219(sw)C(on')-3.319 E 3.219(tb)-.18 G
+3.219(ea)-3.219 G(ble)-3.219 E 1.543(to send e)174 304.8 R -.15(ve)-.25
+G 4.043(ns).15 G 1.543(mall messages\).)-4.043 F 1.542
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+(lock \214le\) per connection, so you may ha)174 316.8 R 1.297 -.15
+(ve t)-.2 H 3.497(or).15 G .997(educe the)-3.497 F F0
+(ConnectionCacheSize)3.497 E F1 .235(option to a)174 328.8 R -.2(vo)-.2
+G .235(id running out of per).2 F .234(-process \214le descriptors.)-.2
+F .234(Requires the)5.234 F F0(HostSta-)2.734 E(tusDir)174 340.8 Q
+(ectory)-.18 E F1(option.)2.5 E(SmtpGreetingMessage=)102 357 Q F2(messa)
+A -.1(ge)-.1 G F1 .344
+([$e macro] The message printed when the SMTP serv)174 369 R .345
+(er starts up.)-.15 F(Def)5.345 E .345(aults to \231$j)-.1 F
+(Sendmail $v ready at $b\232.)174 381 Q(StatusFile=)102 397.2 Q F2
+(\214le)A F1 .3([S] Log summary statistics in the named)14.13 F F2
+(\214le)2.799 E F1 5.299(.I)C 2.799(fn)-5.299 G .299
+(ot set, no summary statistics are)-2.799 F(sa)174 409.2 Q -.15(ve)-.2 G
+3.775(d. This).15 F 1.275(\214le does not gro)3.775 F 3.775(wi)-.25 G
+3.775(ns)-3.775 G 3.775(ize. It)-3.775 F 1.275(can be printed using the)
+3.775 F F2(mailstats)3.775 E F1(\(8\))A(program.)174 421.2 Q 28.4
+(SuperSafe [s])102 437.4 R .373(Be super)2.873 F .373
+(-safe when running things, i.e., al)-.2 F -.1(wa)-.1 G .372
+(ys instantiate the queue \214le, e).1 F -.15(ve)-.25 G(n).15 E .697
+(if you are going to attempt immediate deli)174 449.4 R -.15(ve)-.25 G
+(ry).15 E(.)-.65 E F2(Sendmail)5.697 E F1(al)3.198 E -.1(wa)-.1 G .698
+(ys instantiates the).1 F 2.688
+(queue \214le before returning control the client under an)174 461.4 R
+5.188(yc)-.15 G 5.188(ircumstances. This)-5.188 F(should really)174
+473.4 Q F2(always)2.5 E F1(be set.)2.5 E -.7(Te)102 489.6 S(mpFileMode=)
+.7 E F2(mode)A F1 .331([F] The \214le mode for queue \214les.)174 501.6
+R .331(It is interpreted in octal by def)5.331 F 2.832(ault. Def)-.1 F
+.332(aults to)-.1 F(0600.)174 513.6 Q -.35(Ti)102 529.8 S(meout.).35 E
+F2(type)A F1(=)A F2(timeout)1.666 E F1 .297
+([r; subsumes old T option as well] Set timeout v)174 541.8 R 2.796
+(alues. The)-.25 F .296(actual timeout is indi-)2.796 F 1.678
+(cated by the)174 553.8 R F2(type)4.178 E F1 6.678(.T)C 1.678
+(he recognized timeouts and their def)-6.678 F 1.679(ault v)-.1 F 1.679
+(alues, and their)-.25 F(minimum v)174 565.8 Q
+(alues speci\214ed in RFC 1123 section 5.3.2 are:)-.25 E EP
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+%%EndPageSetup
+/F0 10/Times-Bold@0 SF 193.36(SMM:08-50 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF 23.6
+(initial w)214 96 R(ait for initial greeting message [5m, 5m])-.1 E
+29.72(helo reply)214 108 R(to HELO or EHLO command [5m, none])2.5 E
+29.16(mail reply)214 120 R(to MAIL command [10m, 5m])2.5 E 31.39
+(rcpt reply)214 132 R(to RCPT command [1h, 5m])2.5 E 16.94
+(datainit reply)214 144 R(to D)2.5 E -1.21 -1.11(AT A)-.4 H
+(command [5m, 2m])3.61 E 8.06(datablock data)214 156 R
+(block read [1h, 3m])2.5 E 12.5(data\214nal reply)214 168 R
+(to \214nal `)2.5 E(`.)-.74 E 1.48 -.74('' i)-.7 H 2.5(nd).74 G
+(ata [1h, 10m])-2.5 E 32.5(rset reply)214 180 R
+(to RSET command [5m, none])2.5 E 31.38(quit reply)214 192 R(to Q)2.5 E
+(UIT command [2m, none])-.1 E 28.05(misc reply)214 204 R
+(to NOOP and VERB commands [2m, none])2.5 E 26.94(ident IDENT)214 216 R
+(protocol timeout [30s, none])2.5 E 9.72(\214leopen\207 timeout)214 228
+R(on opening .forw)2.5 E(ard and :include: \214les [60s, none])-.1 E 2.5
+(command\207 command)214 240 R(read [1h, 5m])2.5 E(queuereturn\207ho)214
+252 Q 2.5(wl)-.25 G(ong until a message is returned [5d, 5d])-2.5 E
+(queue)214 264 Q -.1(wa)-.25 G -1.58(rn\207 ho).1 F 2.5(wl)-.25 G
+(ong until a w)-2.5 E(arning is sent [none, none])-.1 E 2.49
+(hoststatus\207 ho)214 276 R 2.5(wl)-.25 G(ong until host status is `)
+-2.5 E(`stale')-.74 E 2.5('[)-.74 G(30m, none])-2.5 E .893(All b)174
+292.2 R .893(ut those mark)-.2 F .893
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+3.392(ft)-5.892 G .892(he message is)-3.392 F .273(submitted using the)
+174 304.2 R/F2 9/Times-Roman@0 SF(NO)2.773 E .523(TIFY SMTP)-.36 F F1
+-.15(ex)2.773 G .273(tension, w).15 F .274
+(arning messages will only be sent)-.1 F(if)174 316.2 Q F2(NO)3.038 E
+(TIFY=DELA)-.36 E(Y)-.945 E F1 .538(is speci\214ed.)3.038 F .537
+(The queuereturn and queue)5.537 F -.1(wa)-.25 G .537
+(rn timeouts can be).1 F 1.234(further quali\214ed with a tag based on the Precedence: \214eld in the message; the)
+174 328.2 R(y)-.15 E 1.9(must be one of \231ur)174 340.2 R 1.9
+(gent\232 \(indicating a positi)-.18 F 2.2 -.15(ve n)-.25 H 1.9
+(on-zero precedence\) \231normal\232).15 F .251
+(\(indicating a zero precedence\), or \231non-ur)174 352.2 R .251
+(gent\232 \(indicating ne)-.18 F -.05(ga)-.15 G(ti).05 E .552 -.15(ve p)
+-.25 H(recedences\).).15 E -.15(Fo)174 364.2 S 4.423(re).15 G 1.923
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+(for ur)174 376.2 R .223(gent messages only to one hour)-.18 F 5.223(.T)
+-.55 G .223(he def)-5.223 F .223(ault if no precedence is indicated is)
+-.1 F(to set the timeout for all precedences.)174 388.2 Q -.35(Ti)102
+404.4 S(meZoneSpec=).35 E/F3 10/Times-Italic@0 SF(tzinfo)A F1 .218
+([t] Set the local time zone info to)174 416.4 R F3(tzinfo)2.718 E F1
+2.718<8a66>2.718 G .218(or e)-2.718 F .218(xample, \231PST8PDT\232.)-.15
+F(Actually)5.217 E 2.717(,i)-.65 G(f)-2.717 E 1.345
+(this is not set, the TZ en)174 428.4 R 1.346(vironment v)-.4 F 1.346
+(ariable is cleared \(so the system def)-.25 F 1.346(ault is)-.1 F .209
+(used\); if set b)174 440.4 R .208(ut null, the user')-.2 F 2.708(sT)
+-.55 G 2.708(Zv)-2.708 G .208
+(ariable is used, and if set and non-null the TZ)-2.958 F -.25(va)174
+452.4 S(riable is set to this v).25 E(alue.)-.25 E -.35(Tr)102 468.6 S
+5.96(yNullMXList [w]).35 F .114
+(If this system is the \231best\232 \(that is, lo)2.613 F .114
+(west preference\) MX for a gi)-.25 F -.15(ve)-.25 G 2.614(nh).15 G .114
+(ost, its)-2.614 F 1.168(con\214guration rules should normally detect this situation and treat that condition)
+174 480.6 R .257(specially by forw)174 492.6 R .258
+(arding the mail to a UUCP feed, treating it as local, or whate)-.1 F
+-.15(ve)-.25 G -.55(r.).15 G(Ho)174 504.6 Q(we)-.25 E -.15(ve)-.25 G
+1.686 -.4(r, i).15 H 3.386(ns).4 G .886
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+(lls\) you may w).1 F .885(ant to try to con-)-.1 F .07
+(nect directly to that host as though it had no MX records at all.)174
+516.6 R .07(Setting this option)5.07 F(causes)174 528.6 Q F3(sendmail)
+3.014 E F1 .514(to try this.)3.014 F .514(The do)5.514 F .514
+(wnside is that errors in your con\214guration are)-.25 F(lik)174 540.6
+Q 2.116(ely to be diagnosed as \231host unkno)-.1 F 2.116
+(wn\232 or \231message timed out\232 instead of)-.25 F
+(something more meaningful.)174 552.6 Q(This option is disrecommended.)5
+E(UnixFromLine=)102 568.8 Q F3(fr)A(omline)-.45 E F1 .236
+([$l macro] De\214nes the format used when)174 580.8 R F3(sendmail)2.736
+E F1 .236(must add a UNIX-style From_)2.736 F 1.324
+(line \(that is, a line be)174 592.8 R 1.325
+(ginning \231From<space>user\232\).)-.15 F(Def)6.325 E 1.325
+(aults to \231From $g)-.1 F($d\232.)6.325 E(Don')174 604.8 Q 2.646(tc)
+-.18 G .146(hange this unless your system uses a dif)-2.646 F .146
+(ferent UNIX mailbox format \(v)-.25 F(ery)-.15 E(unlik)174 616.8 Q
+(ely\).)-.1 E(UnsafeGroupWrites)102 633 Q .211
+([no short name] If set, :include: and .forw)174 645 R .212
+(ard \214les that are group writable are con-)-.1 F .367
+(sidered \231unsafe\232, that is, the)174 657 R 2.867(yc)-.15 G .366
+(annot reference programs or write directly to \214les.)-2.867 F -.8(Wo)
+174 669 S(rld writable :include: and .forw).8 E(ard \214les are al)-.1 E
+-.1(wa)-.1 G(ys unsafe..).1 E(UseErrorsT)102 685.2 Q 21.15(o[)-.8 G .826
+(l] If there is an \231Errors-T)-21.15 F .826(o:\232 header)-.8 F 3.326
+(,s)-.4 G .826(end error messages to the addresses listed)-3.326 F 3.135
+(there. The)174 697.2 R 3.135(yn)-.15 G .635(ormally go to the en)-3.135
+F -.15(ve)-.4 G .635(lope sender).15 F 5.635(.U)-.55 G .634
+(se of this option causes)-5.635 F F3(send-)3.134 E(mail)174 709.2 Q F1
+(to violate RFC 1123.)2.5 E
+(This option is disrecommended and deprecated.)5 E EP
+%%Page: 51 47
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-51)195.86 E/F1 10/Times-Roman@0 SF(UserDatabaseSpec=)102 96 Q/F2
+10/Times-Italic@0 SF(udbspec)A F1
+([U] The user database speci\214cation.)174 108 Q 3.94
+(UserSubmission [no)102 124.2 R 1.369(short name] This is an initial submission directly from a Mail User Agent.)
+3.869 F .433(This can be set in the con\214guration \214le if you ha)174
+136.2 R .733 -.15(ve M)-.2 H -.4(UA).15 G 2.933(st).4 G .433(hat don')
+-2.933 F 2.933(tp)-.18 G .433(ass the)-2.933 F F0<ad55>2.933 E F1 .37
+(\215ag or use the XUSR ESMTP e)174 148.2 R .371(xtension, b)-.15 F .371
+(ut some relayed mail may get inappro-)-.2 F(priately re)174 160.2 Q
+(written if you do.)-.25 E -1.11(Ve)102 176.4 S 37.29(rbose [v])1.11 F
+.561(Run in v)3.061 F .561(erbose mode.)-.15 F .561(If this is set,)
+5.561 F F2(sendmail)3.061 E F1 .56(adjusts options)3.061 F F0
+(HoldExpensi)3.06 E -.1(ve)-.1 G F1(\(old)174 188.4 Q F0(c)2.635 E F1
+2.635(\)a)C(nd)-2.635 E F0(Deli)2.635 E -.1(ve)-.1 G(ryMode).1 E F1
+(\(old)2.635 E F0(d)2.635 E F1 2.635(\)s)C 2.635(ot)-2.635 G .135
+(hat all mail is deli)-2.635 F -.15(ve)-.25 G .136
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+(ainst \231seqmap\232 \214rst does a lookup in map1.)-.05 F .968
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+(together with the service switch entry:)174 180.6 Q 78.84(aliases nis)
+214 196.8 R(\214les)2.5 E 1.633(This causes a query ag)174 213 R 1.633
+(ainst the map \231ali\232 to search maps named \231ali.nis\232 and)-.05
+F(\231ali.\214les\232 in that order)174 225 Q(.)-.55 E 37.84
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+(strip quotes if the resulting string w)174 253.2 R .172
+(ould contain unscannable syntax \(that is, basic)-.1 F .386(errors lik)
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+(tems such as DECnet that routinely quote odd syntax such as)174 289.2 Q
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+(ypical usage is probably something lik)-2.5 E(e:)-.1 E
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+(Care must be tak)174 414 Q(en to pre)-.1 E -.15(ve)-.25 G(nt une).15 E
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+(ut the result is probably not what you had in mind.)-.2 F -.15(Fo)174
+458.4 S(rtunately these cases are rare.).15 E .488
+(Most of these accept as ar)127 474.6 R .488
+(guments the same optional \215ags and a \214lename \(or a mapname for)
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+102 498.6 Q(Kno)5 E(wn \215ags are:)-.25 E 58.86(\255o Indicates)102
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+-.15(ve)-.25 G 2.886(rt).15 G .386(ries with a null byte.)-2.886 F .386
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+(appends a dot on successful matches.)174 643.2 Q 60.53(\255f Do)102
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+E -.15(ey)-.1 G(.)-.5 E 56.08(\255m Match)102 675.6 R .4
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+174 108 R(inserted.)174 120 Q<ad76>102 136.2 Q F2(valcol)A F1 1.929
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+(ute to be returned.)-.2 E<ad7a>102 164.4 Q F2(delim)A F1 .218
+(The column delimiter \(for te)39.7 F .218(xt lookups\).)-.15 F .219
+(It can be a single character or one of the)5.219 F 1.826
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+(ys)-.15 G(equence of whitespace.)-2.5 E 61.08(\255t Normally)102 204.6
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+-2.726 F .227(er f)-.15 F .227(ails \(e.g.,)-.1 F F2(sendmail)2.727 E F1
+(couldn')174 216.6 Q 2.776(tc)-.18 G .276(ontact an)-2.776 F 2.776(yn)
+-.15 G .276(ame serv)-2.776 F .276(er; this is)-.15 F F2(not)2.776 E F1
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+(though it were a permanent f)174 252.6 R .675
+(ailure \(entry not found\).)-.1 F .676(It is particularly useful for)
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+SF(The database is a sorted \(BT)142 112.2 Q(ree-based\) structure.)-.35
+E(User records are stored with the k)5 E -.15(ey)-.1 G(:).15 E/F2 10
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+F 1.247 -.15(ve t)-.2 H .947(he indicated en).15 F -.15(ve)-.4 G .947
+(lope sender).15 F(.)-.55 E .498(This is intended for mailing lists, and will normally be the name of an appro-)
+189 281.4 R .755(priate -request address.)189 293.4 R .755(It is v)5.755
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+(syntax in the alias)3.254 F(\214le.)189 305.4 Q 33.95(fullname The)117
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+(\214ce-address The)-.25 F(of)2.5 E(\214ce address for this user)-.25 E
+(.)-.55 E(of)117 354 Q 19.21(\214ce-phone The)-.25 F(of)2.5 E
+(\214ce phone number for this user)-.25 E(.)-.55 E(of)117 370.2 Q
+(\214ce-f)-.25 E 30.98(ax The)-.1 F(of)2.5 E(\214ce F)-.25 E
+(AX number for this user)-.74 E(.)-.55 E 13.96(home-address The)117
+386.4 R(home address for this user)2.5 E(.)-.55 E 19.51(home-phone The)
+117 402.6 R(home phone number for this user)2.5 E(.)-.55 E(home-f)117
+418.8 Q 31.28(ax The)-.1 F(home F)2.5 E(AX number for this user)-.74 E
+(.)-.55 E 41.73(project A)117 435 R .855
+(\(short\) description of the project this person is af)3.355 F .856
+(\214liated with.)-.25 F .856(In the Uni-)5.856 F -.15(ve)189 447 S
+(rsity this is often just the name of their graduate advisor).15 E(.)
+-.55 E 52.28(plan A)117 463.2 R
+(pointer to a \214le from which plan information can be g)2.5 E
+(athered.)-.05 E .925(As of this writing, only a fe)142 479.4 R 3.424
+(wo)-.25 G 3.424(ft)-3.424 G .924
+(hese \214elds are actually being used by)-3.424 F F2(sendmail)3.424 E
+F1(:)A F2(mail-)3.424 E(dr)117 491.4 Q(op)-.45 E F1(and)2.5 E F2
+(mailname)2.5 E F1 5(.A)C F2(\214ng)-2.5 E(er)-.1 E F1
+(program that uses the other \214elds is planned.)2.5 E F0 2.5
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+142 531.6 R .995(writing rules submit an address to the local mailer)
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+(through the alias \214le.)117 543.6 R .78(If no alias is found \(or if the alias points back to the same address\), the)
+5.781 F 1.777
+(name \(with \231:maildrop\232 appended\) is then used as a k)117 555.6
+R 2.078 -.15(ey i)-.1 H 4.278(nt).15 G 1.778(he user database.)-4.278 F
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+(occurs \(or if the maildrop points at the same address\), forw)117
+567.6 Q(arding is tried.)-.1 E .551(If the \214rst tok)142 583.8 R .55(en of the user name returned by ruleset 0 is an \231@\232 sign, the user database)
+-.1 F .625(lookup is skipped.)117 595.8 R .625
+(The intent is that the user database will act as a set of def)5.625 F
+.626(aults for a cluster)-.1 F 1.533
+(\(in our case, the Computer Science Di)117 607.8 R 1.533
+(vision\); mail sent to a speci\214c machine should ignore)-.25 F
+(these def)117 619.8 Q(aults.)-.1 E .351
+(When mail is sent, the name of the sending user is look)142 636 R .351
+(ed up in the database.)-.1 F .352(If that user)5.351 F .041
+(has a \231mailname\232 record, the v)117 648 R .041
+(alue of that record is used as their outgoing name.)-.25 F -.15(Fo)5.04
+G 2.54(re).15 G .04(xample, I)-2.69 F(might ha)117 660 Q .3 -.15(ve a r)
+-.2 H(ecord:).15 E 48.29(eric:mailname Eric.Allman@CS.Berk)157 676.2 R
+(ele)-.1 E -.65(y.)-.15 G(EDU).65 E(This w)117 692.4 Q
+(ould cause my outgoing mail to be sent as Eric.Allman.)-.1 E .519
+(If a \231maildrop\232 is found for the user)142 708.6 R 3.019(,b)-.4 G
+.52(ut no corresponding \231mailname\232 record e)-3.219 F .52
+(xists, the)-.15 F 1.128(record \231:def)117 720.6 R 1.128
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+671 DL 124 671 120 671 DL 128 671 124 671 DL 132 671 128 671 DL 136 671
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+E -.15(ve)-.25 G .992 -.4(r, t).15 H .192(he sizes of certain primiti).4
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+(cial processing of UNIX-style \231From \232 lines.)188.4 325.2 Q -.1
+(QU)102 341.4 S 45.12(EUE\207 This).1 F 1.559
+(\215ag should be set to compile in the queueing code.)4.059 F 1.56
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+(ompile in the IDENT protocol as de\214ned in RFC 1413.)-19.61 F .375
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+-.2 H(he).15 E F2 -.1(ge)2.5 G(tdtablesize).1 E F1(\(2\) system call.)A
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+(Details are described belo)5 E -.65(w.)-.25 G .342(The are se)102 188.4
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+(ays of computing the load a)-.1 F -.15(ve)-.2 G(rage.).15 E/F2 10
+/Times-Italic@0 SF(Sendmail)5.342 E F1 .343
+(tries to auto-con\214gure them)2.842 F .267
+(based on imperfect guesses; you can select one using the)102 200.4 R F2
+(cc)2.766 E F1(option)2.766 E F0(\255DLA_TYPE=)2.766 E F2(type)A F1
+2.766(,w)C(here)-2.766 E F2(type)2.766 E F1(is:)102 212.4 Q 48.91
+(LA_INT The)102 228.6 R -.1(ke)3.452 G .952(rnel stores the load a).1 F
+-.15(ve)-.2 G .952(rage in the k).15 F .952
+(ernel as an array of long inte)-.1 F(gers.)-.15 E(The actual v)188.4
+240.6 Q(alues are scaled by a f)-.25 E(actor FSCALE \(def)-.1 E
+(ault 256\).)-.1 E(LA_SHOR)102 256.8 Q 35.89(TT)-.6 G .794(he k)-35.89 F
+.794(ernel stores the load a)-.1 F -.15(ve)-.2 G .794(rage in the k).15
+F .793(ernel as an array of short inte)-.1 F(gers.)-.15 E(The actual v)
+188.4 268.8 Q(alues are scaled by a f)-.25 E(actor FSCALE \(def)-.1 E
+(ault 256\).)-.1 E(LA_FLO)102 285 Q 37.03 -1.11(AT T)-.35 H .088(he k)
+1.11 F .088(ernel stores the load a)-.1 F -.15(ve)-.2 G .089
+(rage in the k).15 F .089(ernel as an array of double precision)-.1 F
+(\215oats.)188.4 297 Q(LA_MA)102 313.2 Q 35.97(CH Use)-.4 F(MA)2.5 E
+(CH-style load a)-.4 E -.15(ve)-.2 G(rages.).15 E 39.45(LA_SUBR Call)102
+329.4 R(the)2.5 E F2 -.1(ge)2.5 G(tloadavg).1 E F1
+(routine to get the load a)2.5 E -.15(ve)-.2 G
+(rage as an array of doubles.).15 E(LA_ZER)102 345.6 Q 42.36(OA)-.4 G
+-.1(lwa)-42.36 G(ys return zero as the load a).1 E -.15(ve)-.2 G 2.5
+(rage. This).15 F(is the f)2.5 E(allback case.)-.1 E .494(If type)102
+361.8 R/F3 9/Times-Roman@0 SF(LA_INT)2.994 E F1(,)A F3(LA_SHOR)2.994 E
+(T)-.54 E F1 2.994(,o)C(r)-2.994 E F3(LA_FLO)2.993 E -.999(AT)-.315 G F1
+.493(is speci\214ed, you may also need to specify)3.992 F F3(_P)2.993 E
+-.999(AT)-.828 G(H_UNIX).999 E F1 .948
+(\(the path to your system binary\) and)102 373.8 R F3(LA_A)3.448 E
+(VENR)-1.215 E(UN)-.36 E F1 .949(\(the name of the v)3.448 F .949
+(ariable containing the load)-.25 F -2.25 -.2(av e)102 385.8 T
+(rage in the k).2 E(ernel; usually \231_a)-.1 E -.15(ve)-.2 G
+(nrun\232 or \231a).15 E -.15(ve)-.2 G(nrun\232\).).15 E F0 2.5
+(6.3. Con\214guration)87 409.8 R(in sr)2.5 E(c/conf)-.18 E(.c)-.15 E F1
+(The follo)127 426 Q(wing changes can be made in conf.c.)-.25 E F0 2.5
+(6.3.1. Built-in)102 450 R(Header Semantics)2.5 E F1 1.248
+(Not all header semantics are de\214ned in the con\214guration \214le.)
+142 466.2 R 1.247(Header lines that should)6.247 F .305(only be included by certain mailers \(as well as other more obscure semantics\) must be speci\214ed)
+117 478.2 R .047(in the)117 490.2 R F2(HdrInfo)2.547 E F1 .047(table in)
+2.547 F F2(conf)2.547 E(.c)-.15 E F1 5.047(.T)C .046
+(his table contains the header name \(which should be in all lo)-5.047 F
+(wer)-.25 E(case\) and a set of header control \215ags \(described belo)
+117 502.2 Q(w\), The \215ags are:)-.25 E(H_A)117 518.4 Q 30.97
+(CHECK Normally)-.4 F .007
+(when the check is made to see if a header line is compatible with)2.507
+F 2.941(am)203.4 530.4 S(ailer)-2.941 E(,)-.4 E F2(sendmail)2.941 E F1
+.441(will not delete an e)2.941 F .441(xisting line.)-.15 F .44
+(If this \215ag is set,)5.441 F F2(send-)2.94 E(mail)203.4 542.4 Q F1
+.152(will delete e)2.652 F -.15(ve)-.25 G 2.652(ne).15 G .152
+(xisting header lines.)-2.802 F .152
+(That is, if this bit is set and the)5.152 F 1.425(mailer does not ha)
+203.4 554.4 R 1.725 -.15(ve \215)-.2 H 1.425
+(ag bits set that intersect with the required mailer).15 F 2.204
+(\215ags in the header de\214nition in sendmail.cf, the header line is)
+203.4 566.4 R F2(always)4.704 E F1(deleted.)203.4 578.4 Q 51.13
+(H_EOH If)117 594.6 R .206(this header \214eld is set, treat it lik)
+2.706 F 2.706(eab)-.1 G .206(lank line, i.e., it will signal the end)
+-2.706 F(of the header and the be)203.4 606.6 Q
+(ginning of the message te)-.15 E(xt.)-.15 E 39.45(H_FORCE Add)117 622.8
+R 2.038(this header entry e)4.538 F -.15(ve)-.25 G 4.538(ni).15 G 4.538
+(fo)-4.538 G 2.038(ne e)-4.538 F 2.039(xisted in the message before.)
+-.15 F 2.039(If a)7.039 F 2.189(header entry does not ha)203.4 634.8 R
+2.488 -.15(ve t)-.2 H 2.188(his bit set,).15 F F2(sendmail)4.688 E F1
+2.188(will not add another)4.688 F .62
+(header line if a header line of this name already e)203.4 646.8 R 3.12
+(xisted. This)-.15 F -.1(wo)3.12 G .62(uld nor).1 F(-)-.2 E
+(mally be used to stamp the message by e)203.4 658.8 Q -.15(ve)-.25 G
+(ryone who handled it.).15 E(H_TRA)117 675 Q 39.3(CE If)-.4 F 1.044
+(set, this is a timestamp \(trace\) \214eld.)3.544 F 1.043
+(If the number of trace \214elds in a)6.043 F .705(message e)203.4 687 R
+.705(xceeds a preset amount the message is returned on the assump-)-.15
+F(tion that it has an aliasing loop.)203.4 699 Q EP
+%%Page: 61 57
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-61)195.86 E/F1 10/Times-Roman@0 SF 46.67(H_RCPT If)117 96 R .332
+(set, this \214eld contains recipient addresses.)2.833 F .332
+(This is used by the)5.332 F F0<ad74>2.832 E F1 .332(\215ag to)2.832 F
+1.349(determine who to send to when it is collecting recipients from the mes-)
+203.4 108 R(sage.)203.4 120 Q(H_FR)117 136.2 Q 43.74(OM This)-.4 F 1.673
+(\215ag indicates that this \214eld speci\214es a sender)4.174 F 6.673
+(.T)-.55 G 1.673(he order of these)-6.673 F .898(\214elds in the)203.4
+148.2 R/F2 10/Times-Italic@0 SF(HdrInfo)3.398 E F1 .898
+(table speci\214es)3.398 F F2(sendmail)3.398 E F1 1.998 -.55('s p)D .898
+(reference for which \214eld).55 F(to return error messages to.)203.4
+160.2 Q(H_ERR)117 176.4 Q(ORST)-.4 E 22.53(OA)-.18 G
+(ddresses in this header should recei)-22.53 E .3 -.15(ve e)-.25 H
+(rror messages.).15 E 52.79(H_CTE This)117 192.6 R
+(header is a Content-T)2.5 E(ransfer)-.35 E(-Encoding header)-.2 E(.)
+-.55 E 40.01(H_CTYPE This)117 208.8 R(header is a Content-T)2.5 E
+(ype header)-.8 E(.)-.55 E(H_STRIPV)117 225 Q 25.25(AL Strip)-1.35 F
+(the v)2.5 E(alue from the header \(for Bcc:\).)-.25 E(Let')117 241.2 Q
+2.5(sl)-.55 G(ook at a sample)-2.5 E F2(HdrInfo)2.5 E F1
+(speci\214cation:)2.5 E(struct hdrinfo)157 257.4 Q(HdrInfo[] =)84.6 E({)
+157 269.4 Q(/* originator \214elds, most to least signi\214cant)189.5
+281.4 Q(*/)5 E 52.29("resent-sender", H_FR)177 293.4 R(OM,)-.4 E 58.95
+("resent-from", H_FR)177 305.4 R(OM,)-.4 E 79.5("sender", H_FR)177 317.4
+R(OM,)-.4 E 86.16("from", H_FR)177 329.4 R(OM,)-.4 E 66.72
+("full-name", H_A)177 341.4 R(CHECK,)-.4 E 71.17("errors-to", H_FR)177
+353.4 R -1.667(OM | H_ERR)-.4 F(ORST)-.4 E(O,)-.18 E
+(/* destination \214elds */)189.5 365.4 Q 97.82("to", H_RCPT)177 377.4 R
+(,)-.74 E 70.61("resent-to", H_RCPT)177 389.4 R(,)-.74 E 96.72
+("cc", H_RCPT)177 401.4 R(,)-.74 E 91.72("bcc", H_RCPT)177 413.4 R .833
+(|H).833 G(_STRIPV)-.833 E(AL,)-1.35 E
+(/* message identi\214cation and control */)189.5 425.4 Q 71.72
+("message", H_EOH,)177 437.4 R("te)177 449.4 Q 90.75(xt", H_EOH,)-.15 F
+(/* trace \214elds */)189.5 461.4 Q("recei)177 473.4 Q -.15(ve)-.25 G
+72.13(d", H_TRA).15 F -1.667(CE | H_FORCE,)-.4 F
+(/* miscellaneous \214elds */)189.5 485.4 Q("content-transfer)177 497.4
+Q 2.5(-encoding", H_CTE,)-.2 F 55.61("content-type", H_CTYPE,)177 509.4
+R 87.1(NULL, 0,)177 533.4 R(};)157 545.4 Q 2.435
+(This structure indicates that the \231T)117 561.6 R 2.435
+(o:\232, \231Resent-T)-.8 F 2.435
+(o:\232, and \231Cc:\232 \214elds all specify recipient)-.8 F 3.161
+(addresses. An)117 573.6 R 3.161<7999>-.15 G .662(Full-Name:\232 \214eld will be deleted unless the required mailer \215ag \(indicated in)
+-3.161 F .246(the con\214guration \214le\) is speci\214ed.)117 585.6 R
+.245(The \231Message:\232 and \231T)5.246 F -.15(ex)-.7 G .245
+(t:\232 \214elds will terminate the header;).15 F 1.936
+(these are used by random dissenters around the netw)117 597.6 R 1.936
+(ork w)-.1 F 4.436(orld. The)-.1 F(\231Recei)4.436 E -.15(ve)-.25 G
+1.937(d:\232 \214eld will).15 F(al)117 609.6 Q -.1(wa)-.1 G
+(ys be added, and can be used to trace messages.).1 E .446
+(There are a number of important points here.)142 625.8 R .445
+(First, header \214elds are not added automati-)5.446 F .656
+(cally just because the)117 637.8 R 3.156(ya)-.15 G .656(re in the)
+-3.156 F F2(HdrInfo)3.157 E F1 .657(structure; the)3.157 F 3.157(ym)-.15
+G .657(ust be speci\214ed in the con\214guration)-3.157 F .728
+(\214le in order to be added to the message.)117 649.8 R(An)5.727 E
+3.227(yh)-.15 G .727
+(eader \214elds mentioned in the con\214guration \214le)-3.227 F -.2(bu)
+117 661.8 S 3.24(tn).2 G .74(ot mentioned in the)-3.24 F F2(HdrInfo)3.24
+E F1 .74(structure ha)3.24 F 1.04 -.15(ve d)-.2 H(ef).15 E .74
+(ault processing performed; that is, the)-.1 F 3.24(ya)-.15 G(re)-3.24 E
+1.375(added unless the)117 673.8 R 3.875(yw)-.15 G 1.375
+(ere in the message already)-3.875 F 6.375(.S)-.65 G 1.374(econd, the)
+-6.375 F F2(HdrInfo)3.874 E F1 1.374(structure only speci\214es)3.874 F
+.324(cliched processing; certain headers are processed specially by ad hoc code re)
+117 685.8 R -.05(ga)-.15 G .325(rdless of the sta-).05 F .481
+(tus speci\214ed in)117 697.8 R F2(HdrInfo)2.981 E F1 5.481(.F)C .481
+(or e)-5.631 F .481
+(xample, the \231Sender:\232 and \231From:\232 \214elds are al)-.15 F
+-.1(wa)-.1 G .48(ys scanned on).1 F EP
+%%Page: 62 58
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF 193.36(SMM:08-62 Sendmail)72 60 R
+(Installation and Operation Guide)2.5 E/F1 10/Times-Roman@0 SF(ARP)117
+98 Q .751(ANET mail to determine the sender)-.92 F/F2 7/Times-Roman@0 SF
+(24)-4 I F1 3.251(;t)4 K .75
+(his is used to perform the \231return to sender\232 func-)-3.251 F
+2.976(tion. The)117 110 R .476(\231From:\232 and \231Full-Name:\232 \214elds are used to determine the full name of the sender if)
+2.976 F(possible; this is stored in the macro)117 122 Q F0($x)2.5 E F1
+(and used in a number of w)2.5 E(ays.)-.1 E F0 2.5(6.3.2. Restricting)
+102 146 R(Use of Email)2.5 E F1 .15
+(If it is necessary to restrict mail through a relay)142 162.2 R 2.649
+(,t)-.65 G(he)-2.649 E/F3 10/Times-Italic@0 SF -.15(ch)2.649 G(ec).15 E
+(kcompat)-.2 E F1 .149(routine can be modi\214ed.)2.649 F .163
+(This routine is called for e)117 174.2 R -.15(ve)-.25 G .163
+(ry recipient address.).15 F .163(It returns an e)5.163 F .163
+(xit status indicating the status of)-.15 F .895(the message.)117 186.2
+R .895(The status)5.895 F/F4 9/Times-Roman@0 SF(EX_OK)3.395 E F1 .895
+(accepts the address,)3.395 F F4(EX_TEMPF)3.395 E(AIL)-.666 E F1 .895
+(queues the message for a)3.395 F .263(later try)117 198.2 R 2.763(,a)
+-.65 G .263(nd other v)-2.763 F .264(alues \(commonly)-.25 F F4(EX_UN)
+2.764 E -1.215(AVA)-.315 G(ILABLE)1.215 E F1 2.764(\)r)C .264
+(eject the message.)-2.764 F .264(It is up to)5.264 F F3 -.15(ch)2.764 G
+(ec).15 E(k-)-.2 E(compat)117 210.2 Q F1 .43
+(to print an error message \(using)2.93 F F3(usr)2.929 E(err)-.37 E F1
+2.929(\)i)C 2.929(ft)-2.929 G .429(he message is rejected.)-2.929 F -.15
+(Fo)5.429 G 2.929(re).15 G(xample,)-3.079 E F3 -.15(ch)2.929 G(ec).15 E
+(k-)-.2 E(compat)117 222.2 Q F1(could read:)2.5 E F4(int)157 237.2 Q
+(checkcompat\(to, e\))157 248 Q(re)175 258.8 Q(gister ADDRESS *to;)-.135
+E(re)175 269.6 Q(gister ENVELOPE *e;)-.135 E({)157 280.4 Q(re)175 291.2
+Q(gister ST)-.135 E(AB *s;)-.837 E 2.25(s=s)175 312.8 S(tab\("pri)-2.25
+E -.225(va)-.225 G(te", ST_MAILER, ST_FIND\);).225 E
+(if \(s != NULL && e\255>e_from.q_mailer != LocalMailer &&)175 323.6 Q
+(to->q_mailer == s->s_mailer\))184 334.4 Q({)175 345.2 Q
+(usrerr\("No pri)193 356 Q -.225(va)-.225 G(te net mail allo).225 E
+(wed through this machine"\);)-.225 E(return \(EX_UN)193 366.8 Q -1.215
+(AVA)-.315 G(ILABLE\);)1.215 E(})175 377.6 Q
+(if \(MsgSize > 50000 && bitnset\(M_LOCALMAILER, to\255>q_mailer\)\))175
+388.4 Q({)175 399.2 Q(usrerr\("Message too lar)193 410 Q
+(ge for non-local deli)-.162 E -.135(ve)-.225 G(ry"\);).135 E
+(e\255>e_\215ags |= EF_NORETURN;)193 420.8 Q(return \(EX_UN)193 431.6 Q
+-1.215(AVA)-.315 G(ILABLE\);)1.215 E(})175 442.4 Q(return \(EX_OK\);)175
+453.2 Q(})157 464 Q F1 .969(This w)117 480.2 R .969
+(ould reject messages greater than 50000 bytes unless the)-.1 F 3.469
+(yw)-.15 G .97(ere local.)-3.469 F(The)5.97 E F3(EF_NORE-)3.47 E(TURN)
+117 492.2 Q F1 .652(\215ag can be set in)3.152 F F3(e)3.152 E/F5 10
+/Symbol SF<ae>A F3(e_\215a)A(gs)-.1 E F1 .651
+(to suppress the return of the actual body of the message in)3.152 F
+.655(the error return.)117 504.2 R .655(The actual use of this routine is highly dependent on the implementation, and)
+5.655 F(use should be limited.)117 516.2 Q F0 2.5(6.3.3. Load)102 540.2
+R -.6 -1(Av e)2.5 H(rage Computation)1 E F1 .18(The routine)142 556.4 R
+F3 -.1(ge)2.68 G(tla).1 E F1 .18
+(should return an approximation of the current system load a)2.68 F -.15
+(ve)-.2 G .18(rage as an).15 F(inte)117 568.4 Q(ger)-.15 E 5(.T)-.55 G
+(here are se)-5 E -.15(ve)-.25 G(ral v).15 E
+(ersions included on compilation \215ags as described abo)-.15 E -.15
+(ve)-.15 G(.).15 E F0 2.5(6.3.4. New)102 592.4 R(Database Map Classes)
+2.5 E F1(Ne)142 608.6 Q 2.875(wk)-.25 G .675 -.15(ey m)-2.975 H .375(aps can be added by creating a class initialization function and a lookup func-)
+.15 F 2.5(tion. These)117 620.6 R(are then added to the routine)2.5 E F3
+(setupmaps.)2.5 E F1(The initialization function is called as)142 636.8
+Q F3(xxx)157 653 Q F1(_map_init\(MAP *map, char *ar)A(gs\))-.18 E(The)
+117 669.2 Q F3(map)3.28 E F1 .78(is an internal data structure.)3.28 F
+(The)5.78 E F3(ar)3.279 E(gs)-.37 E F1 .779
+(is a pointer to the portion of the con\214guration)3.279 F .32 LW 76
+678.8 72 678.8 DL 80 678.8 76 678.8 DL 84 678.8 80 678.8 DL 88 678.8 84
+678.8 DL 92 678.8 88 678.8 DL 96 678.8 92 678.8 DL 100 678.8 96 678.8 DL
+104 678.8 100 678.8 DL 108 678.8 104 678.8 DL 112 678.8 108 678.8 DL 116
+678.8 112 678.8 DL 120 678.8 116 678.8 DL 124 678.8 120 678.8 DL 128
+678.8 124 678.8 DL 132 678.8 128 678.8 DL 136 678.8 132 678.8 DL 140
+678.8 136 678.8 DL 144 678.8 140 678.8 DL 148 678.8 144 678.8 DL 152
+678.8 148 678.8 DL 156 678.8 152 678.8 DL 160 678.8 156 678.8 DL 164
+678.8 160 678.8 DL 168 678.8 164 678.8 DL 172 678.8 168 678.8 DL 176
+678.8 172 678.8 DL 180 678.8 176 678.8 DL 184 678.8 180 678.8 DL 188
+678.8 184 678.8 DL 192 678.8 188 678.8 DL 196 678.8 192 678.8 DL 200
+678.8 196 678.8 DL 204 678.8 200 678.8 DL 208 678.8 204 678.8 DL 212
+678.8 208 678.8 DL 216 678.8 212 678.8 DL/F6 5/Times-Roman@0 SF(24)93.6
+689.2 Q/F7 8/Times-Roman@0 SF(Actually)3.2 I 2.631(,t)-.52 G .631
+(his is no longer true in SMTP; this information is contained in the en)
+-2.631 F -.12(ve)-.32 G 2.632(lope. The).12 F .632(older ARP)2.632 F
+.632(ANET protocols did)-.736 F(not completely distinguish en)72 702 Q
+-.12(ve)-.32 G(lope from header).12 E(.)-.44 E EP
+%%Page: 63 59
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Bold@0 SF(Sendmail Installation and Operation Guide)72 60 Q
+(SMM:08-63)195.86 E/F1 10/Times-Roman@0 SF .396(\214le line follo)117 96
+R .396(wing the map class name; \215ags and \214lenames can be e)-.25 F
+.397(xtracted from this line.)-.15 F(The)5.397 E
+(initialization function must return)117 108 Q/F2 9/Times-Roman@0 SF(TR)
+2.5 E(UE)-.36 E F1(if it successfully opened the map,)2.5 E F2 -.666(FA)
+2.5 G(LSE).666 E F1(otherwise.)2.5 E(The lookup function is called as)
+142 124.2 Q/F3 10/Times-Italic@0 SF(xxx)157 140.4 Q F1
+(_map_lookup\(MAP *map, char b)A(uf[], char **a)-.2 E 1.3 -.65(v, i)-.2
+H(nt *statp\)).65 E(The)117 156.6 Q F3(map)2.773 E F1 .273
+(de\214nes the map internally)2.773 F 5.273(.T)-.65 G(he)-5.273 E F3 -.2
+(bu)2.773 G(f).2 E F1 .273(has the input k)2.773 F -.15(ey)-.1 G 5.273
+(.T)-.5 G .272(his may be \(and often is\) used)-5.273 F(destructi)117
+168.6 Q -.15(ve)-.25 G(ly).15 E 5.151(.T)-.65 G(he)-5.151 E F3(av)2.651
+E F1 .151(is a list of ar)2.651 F .151(guments passed in from the re)
+-.18 F .152(write line.)-.25 F .152(The lookup function)5.152 F .205
+(should return a pointer to the ne)117 180.6 R 2.705(wv)-.25 G 2.705
+(alue. IF)-2.955 F .205(the map lookup f)2.705 F(ails,)-.1 E F3(*statp)
+2.705 E F1 .204(should be set to an e)2.705 F(xit)-.15 E .301
+(status code; in particular)117 192.6 R 2.801(,i)-.4 G 2.801(ts)-2.801 G
+.302(hould be set to)-2.801 F F2(EX_TEMPF)2.802 E(AIL)-.666 E F1 .302
+(if reco)2.802 F -.15(ve)-.15 G .302(ry is to be attempted by the).15 F
+(higher le)117 204.6 Q -.15(ve)-.25 G 2.5(lc).15 G(ode.)-2.5 E F0 2.5
+(6.3.5. Queueing)102 228.6 R(Function)2.5 E F1 .783(The routine)142
+244.8 R F3(shouldqueue)3.283 E F1 .783
+(is called to decide if a message should be queued or processed)3.283 F
+(immediately)117 256.8 Q 6.618(.T)-.65 G 1.618
+(ypically this compares the message priority to the current load a)
+-7.418 F -.15(ve)-.2 G 4.119(rage. The).15 F(def)117 268.8 Q
+(ault de\214nition is:)-.1 E(bool)157 285 Q(shouldqueue\(pri, ctime\))
+157 297 Q(long pri;)175 309 Q(time_t ctime;)175 321 Q({)157 333 Q
+(if \(CurrentLA < QueueLA\))175 345 Q(return \(F)193 357 Q(ALSE\);)-.74
+E(return \(pri > \(QueueF)175 369 Q
+(actor / \(CurrentLA \255 QueueLA + 1\)\)\);)-.15 E(})157 381 Q 2.063
+(If the current load a)117 397.2 R -.15(ve)-.2 G 2.062(rage \(global v)
+.15 F(ariable)-.25 E F3(Curr)4.562 E(entLA)-.37 E F1 4.562(,w)C 2.062
+(hich is set before this function is)-4.562 F 1.057
+(called\) is less than the lo)117 409.2 R 3.558(wt)-.25 G 1.058
+(hreshold load a)-3.558 F -.15(ve)-.2 G 1.058(rage \(option).15 F F0(x)
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+(ly de\214ne one).15 F(message.)72 265.2 Q(The types are:)97 281.4 Q 31
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+(he controlling address.)-29.33 F .575
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+(ries will be run as the).15 F F3(localuser)5.314 E F1 2.814
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+(aliasname)3.062 E F1 .561(is the name of the alias that e)3.062 F .561
+(xpanded to this address \(used for print-)-.15 F(ing messages\).)108
+519 Q 28.78(QT)72 535.2 S .797(he `)-28.78 F .797(`original recipient')
+-.74 F .798
+(', speci\214ed by the ORCPT= \214eld in an ESMTP transaction.)-.74 F
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+(ly for Deli).15 E -.15(ve)-.25 G(ry Status Noti\214cations.).15 E
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+575.4 R .492(There will be one line for each recipient.)5.492 F -1.11
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+(ailure, `D' to return a message if the message is delayed, `B' to)-.1 F
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+72 672 S .113(he current message priority)-30.44 F 5.113(.T)-.65 G .113
+(his is used to order the queue.)-5.113 F .114(Higher numbers mean lo)
+5.114 F .114(wer priori-)-.25 F 3.677(ties. The)108 684 R 1.176
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+(message class and the size of the message.)108 696 Q 27.11(MA)72 712.2
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+(lag bits, represented as one letter per \215ag.)-30.44 F .043
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+-.15(ve)-.25 G(ry attempts.).15 E 28.78(KT)72 152.4 S
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+72 213 Q(/usr/sbin/sendmail)72 229.2 Q(The binary of)144 241.2 Q F2
+(sendmail)2.5 E F1(.)A(/usr/bin/ne)72 257.4 Q -.1(wa)-.25 G(liases).1 E
+3.735(Al)144 269.4 S 1.235
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+(gram is completely equi)144 281.4 Q -.25(va)-.25 G(lent to gi).25 E
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+F1(.)A 5.9(/etc/sendmail.cf The)72 325.8 R
+(con\214guration \214le, in te)2.5 E(xtual form.)-.15 E
+(/usr/lib/sendmail.hf)72 342 Q(The SMTP help \214le.)144 354 Q 7
+(/etc/sendmail.st A)72 370.2 R(statistics \214le; need not be present.)
+2.5 E .89(/etc/sendmail.pid Created)72 386.4 R .318
+(in daemon mode; it contains the process id of the current SMTP daemon.)
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+(ersion of the alias \214le.)-.15 E(/etc/aliases.{pag,dir})72 442.8 Q
+(The alias \214le in)144 454.8 Q F2(dbm)2.5 E F1(\(3\) format.)1.666 E
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+(The directory in which the mail queue and temporary \214les reside.)144
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+(Control \(queue\) \214les for messages.)144 511.2 Q(/v)72 527.4 Q
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+2.5 F(68)26 E 2.5(8. A)72 211.2 R(CKNO)-.4 E .1(WLEDGEMENTS ............................................................................................................)
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+-2.5 G(UPPOR)-2.5 E 2.5(TF)-.6 G 1.12(ILES ..............................................................................)
+-2.5 F(74)26 E EP
+%%Trailer
+end
+%%EOF
diff --git a/doc/usenix/Makefile b/doc/usenix/Makefile
new file mode 100644
index 0000000..ea0665c
--- /dev/null
+++ b/doc/usenix/Makefile
@@ -0,0 +1,12 @@
+#	@(#)Makefile	8.2 (Berkeley) 2/28/94
+
+SRCS=	usenix.me
+MACROS=	-me
+
+all: usenix.ps
+
+usenix.ps: ${SRCS}
+	rm -f ${.TARGET}
+	${PIC} ${SRCS} | ${ROFF} > ${.TARGET}
+
+.include <bsd.doc.mk>
diff --git a/doc/usenix/usenix.me b/doc/usenix/usenix.me
new file mode 100644
index 0000000..0fbb672
--- /dev/null
+++ b/doc/usenix/usenix.me
@@ -0,0 +1,1076 @@
+.nr si 3n
+.he 'Mail Systems and Addressing in 4.2bsd''%'
+.fo 'Version 8.2'USENIX \- Jan 83'Last Mod 11/27/93'
+.if n .ls 2
+.+c
+.(l C
+.sz 14
+Mail Systems and Addressing
+in 4.2bsd
+.sz
+.sp
+Eric Allman*
+.sp 0.5
+.i
+Britton-Lee, Inc.
+1919 Addison Street, Suite 105.
+Berkeley, California 94704.
+.sp 0.5
+.r
+eric@Berkeley.ARPA
+ucbvax!eric
+.)l
+.sp
+.(l F
+.ce
+ABSTRACT
+.sp \n(psu
+Routing mail through a heterogeneous internet presents many new
+problems.
+Among the worst of these is that of address mapping.
+Historically, this has been handled on an ad hoc basis.
+However,
+this approach has become unmanageable as internets grow.
+.sp \n(psu
+Sendmail acts a unified
+.q "post office"
+to which all mail can be
+submitted.
+Address interpretation is controlled by a production
+system,
+which can parse both old and new format addresses.
+The
+new format is
+.q "domain-based,"
+a flexible technique that can
+handle many common situations.
+Sendmail is not intended to perform
+user interface functions.
+.sp \n(psu
+Sendmail will replace delivermail in the Berkeley 4.2 distribution.
+Several major hosts are now or will soon be running sendmail.
+This change will affect any users that route mail through a sendmail
+gateway.
+The changes that will be user visible are emphasized.
+.)l
+.sp 2
+.(f
+*A considerable part of this work
+was done while under the employ
+of the INGRES Project
+at the University of California at Berkeley.
+.)f
+.pp
+The mail system to appear in 4.2bsd
+will contain a number of changes.
+Most of these changes are based on the replacement of
+.i delivermail
+with a new module called
+.i sendmail.
+.i Sendmail
+implements a general internetwork mail routing facility,
+featuring aliasing and forwarding,
+automatic routing to network gateways,
+and flexible configuration.
+Of key interest to the mail system user
+will be the changes in the network addressing structure.
+.pp
+In a simple network,
+each node has an address,
+and resources can be identified
+with a host-resource pair;
+in particular,
+the mail system can refer to users
+using a host-username pair.
+Host names and numbers have to be administered by a central authority,
+but usernames can be assigned locally to each host.
+.pp
+In an internet,
+multiple networks with different characteristics
+and managements
+must communicate.
+In particular,
+the syntax and semantics of resource identification change.
+Certain special cases can be handled trivially
+by
+.i "ad hoc"
+techniques,
+such as
+providing network names that appear local to hosts
+on other networks,
+as with the Ethernet at Xerox PARC.
+However, the general case is extremely complex.
+For example,
+some networks require that the route the message takes
+be explicitly specified by the sender,
+simplifying the database update problem
+since only adjacent hosts must be entered
+into the system tables,
+while others use logical addressing,
+where the sender specifies the location of the recipient
+but not how to get there.
+Some networks use a left-associative syntax
+and others use a right-associative syntax,
+causing ambiguity in mixed addresses.
+.pp
+Internet standards seek to eliminate these problems.
+Initially, these proposed expanding the address pairs
+to address triples,
+consisting of
+{network, host, username}
+triples.
+Network numbers must be universally agreed upon,
+and hosts can be assigned locally
+on each network.
+The user-level presentation was changed
+to address domains,
+comprised of a local resource identification
+and a hierarchical domain specification
+with a common static root.
+The domain technique
+separates the issue of physical versus logical addressing.
+For example,
+an address of the form
+.q "eric@a.cc.berkeley.arpa"
+describes the logical
+organization of the address space
+(user
+.q eric
+on host
+.q a
+in the Computer Center
+at Berkeley)
+but not the physical networks used
+(for example, this could go over different networks
+depending on whether
+.q a
+were on an ethernet
+or a store-and-forward network).
+.pp
+.i Sendmail
+is intended to help bridge the gap
+between the totally
+.i "ad hoc"
+world
+of networks that know nothing of each other
+and the clean, tightly-coupled world
+of unique network numbers.
+It can accept old arbitrary address syntaxes,
+resolving ambiguities using heuristics
+specified by the system administrator,
+as well as domain-based addressing.
+It helps guide the conversion of message formats
+between disparate networks.
+In short,
+.i sendmail
+is designed to assist a graceful transition
+to consistent internetwork addressing schemes.
+.sp
+.pp
+Section 1 defines some of the terms
+frequently left fuzzy
+when working in mail systems.
+Section 2 discusses the design goals for
+.i sendmail .
+In section 3,
+the new address formats
+and basic features of
+.i sendmail
+are described.
+Section 4 discusses some of the special problems
+of the UUCP network.
+The differences between
+.i sendmail
+and
+.i delivermail
+are presented in section 5.
+.sp
+.(l F
+.b DISCLAIMER:
+A number of examples
+in this paper
+use names of actual people
+and organizations.
+This is not intended
+to imply a commitment
+or even an intellectual agreement
+on the part of these people or organizations.
+In particular,
+Bell Telephone Laboratories (BTL),
+Digital Equipment Corporation (DEC),
+Lawrence Berkeley Laboratories (LBL),
+Britton-Lee Incorporated (BLI),
+and the University of California at Berkeley
+are not committed to any of these proposals at this time.
+Much of this paper
+represents no more than
+the personal opinions of the author.
+.)l
+.sh 1 "DEFINITIONS"
+.pp
+There are four basic concepts
+that must be clearly distinguished
+when dealing with mail systems:
+the user (or the user's agent),
+the user's identification,
+the user's address,
+and the route.
+These are distinguished primarily by their position independence.
+.sh 2 "User and Identification"
+.pp
+The user is the being
+(a person or program)
+that is creating or receiving a message.
+An
+.i agent
+is an entity operating on behalf of the user \*-
+such as a secretary who handles my mail.
+or a program that automatically returns a
+message such as
+.q "I am at the UNICOM conference."
+.pp
+The identification is the tag
+that goes along with the particular user.
+This tag is completely independent of location.
+For example,
+my identification is the string
+.q "Eric Allman,"
+and this identification does not change
+whether I am located at U.C. Berkeley,
+at Britton-Lee,
+or at a scientific institute in Austria.
+.pp
+Since the identification is frequently ambiguous
+(e.g., there are two
+.q "Robert Henry" s
+at Berkeley)
+it is common to add other disambiguating information
+that is not strictly part of the identification
+(e.g.,
+Robert
+.q "Code Generator"
+Henry
+versus
+Robert
+.q "System Administrator"
+Henry).
+.sh 2 "Address"
+.pp
+The address specifies a location.
+As I move around,
+my address changes.
+For example,
+my address might change from
+.q eric@Berkeley.ARPA
+to
+.q eric@bli.UUCP
+or
+.q allman@IIASA.Austria
+depending on my current affiliation.
+.pp
+However,
+an address is independent of the location of anyone else.
+That is,
+my address remains the same to everyone who might be sending me mail.
+For example,
+a person at MIT and a person at USC
+could both send to
+.q eric@Berkeley.ARPA
+and have it arrive to the same mailbox.
+.pp
+Ideally a
+.q "white pages"
+service would be provided to map user identifications
+into addresses
+(for example, see
+[Solomon81]).
+Currently this is handled by passing around
+scraps of paper
+or by calling people on the telephone
+to find out their address.
+.sh 2 "Route"
+.pp
+While an address specifies
+.i where
+to find a mailbox,
+a route specifies
+.i how
+to find the mailbox.
+Specifically,
+it specifies a path
+from sender to receiver.
+As such, the route is potentially different
+for every pair of people in the electronic universe.
+.pp
+Normally the route is hidden from the user
+by the software.
+However,
+some networks put the burden of determining the route
+onto the sender.
+Although this simplifies the software,
+it also greatly impairs the usability
+for most users.
+The UUCP network is an example of such a network.
+.sh 1 "DESIGN GOALS"
+.pp
+Design goals for
+.i sendmail \**
+.(f
+\**This section makes no distinction between
+.i delivermail
+and
+.i sendmail.
+.)f
+include:
+.np
+Compatibility with the existing mail programs,
+including Bell version 6 mail,
+Bell version 7 mail,
+Berkeley
+.i Mail
+[Shoens79],
+BerkNet mail
+[Schmidt79],
+and hopefully UUCP mail
+[Nowitz78].
+ARPANET mail
+[Crocker82]
+was also required.
+.np
+Reliability, in the sense of guaranteeing
+that every message is correctly delivered
+or at least brought to the attention of a human
+for correct disposal;
+no message should ever be completely lost.
+This goal was considered essential
+because of the emphasis on mail in our environment.
+It has turned out to be one of the hardest goals to satisfy,
+especially in the face of the many anomalous message formats
+produced by various ARPANET sites.
+For example,
+certain sites generate improperly formated addresses,
+occasionally
+causing error-message loops.
+Some hosts use blanks in names,
+causing problems with
+mail programs that assume that an address
+is one word.
+The semantics of some fields
+are interpreted slightly differently
+by different sites.
+In summary,
+the obscure features of the ARPANET mail protocol
+really
+.i are
+used and
+are difficult to support,
+but must be supported.
+.np
+Existing software to do actual delivery
+should be used whenever possible.
+This goal derives as much from political and practical considerations
+as technical.
+.np
+Easy expansion to
+fairly complex environments,
+including multiple
+connections to a single network type
+(such as with multiple UUCP or Ethernets).
+This goal requires consideration of the contents of an address
+as well as its syntax
+in order to determine which gateway to use.
+.np
+Configuration information should not be compiled into the code.
+A single compiled program should be able to run as is at any site
+(barring such basic changes as the CPU type or the operating system).
+We have found this seemingly unimportant goal
+to be critical in real life.
+Besides the simple problems that occur when any program gets recompiled
+in a different environment,
+many sites like to
+.q fiddle
+with anything that they will be recompiling anyway.
+.np
+.i Sendmail
+must be able to let various groups maintain their own mailing lists,
+and let individuals specify their own forwarding,
+without modifying the system alias file.
+.np
+Each user should be able to specify which mailer to execute
+to process mail being delivered for him.
+This feature allows users who are using specialized mailers
+that use a different format to build their environment
+without changing the system,
+and facilitates specialized functions
+(such as returning an
+.q "I am on vacation"
+message).
+.np
+Network traffic should be minimized
+by batching addresses to a single host where possible,
+without assistance from the user.
+.pp
+These goals motivated the architecture illustrated in figure 1.
+.(z
+.hl
+.ie t \
+.	sp 18
+.el \{\
+.(c
++---------+   +---------+   +---------+
+| sender1 |   | sender2 |   | sender3 |
++---------+   +---------+   +---------+
+     |  	   |             |
+     +----------+  +  +----------+
+		|  |  |
+		v  v  v
+            +-------------+
+            |   sendmail  |
+            +-------------+
+		|  |  |
+     +----------+  +  +----------+
+     |  	   |             |
+     v             v             v
++---------+   +---------+   +---------+
+| mailer1 |   | mailer2 |   | mailer3 |
++---------+   +---------+   +---------+
+.)c
+.\}
+
+.ce
+Figure 1 \*- Sendmail System Structure.
+.hl
+.)z
+The user interacts with a mail generating and sending program.
+When the mail is created,
+the generator calls
+.i sendmail ,
+which routes the message to the correct mailer(s).
+Since some of the senders may be network servers
+and some of the mailers may be network clients,
+.i sendmail
+may be used as an internet mail gateway.
+.sh 1 "USAGE"
+.sh 2 "Address Formats"
+.pp
+Arguments may be flags or addresses.
+Flags set various processing options.
+Following flag arguments,
+address arguments may be given.
+Addresses follow the syntax in RFC822
+[Crocker82]
+for ARPANET
+address formats.
+In brief, the format is:
+.np
+Anything in parentheses is thrown away
+(as a comment).
+.np
+Anything in angle brackets (\c
+.q "<\|>" )
+is preferred
+over anything else.
+This rule implements the ARPANET standard that addresses of the form
+.(b
+user name <machine-address>
+.)b
+will send to the electronic
+.q machine-address
+rather than the human
+.q "user name."
+.np
+Double quotes
+(\ "\ )
+quote phrases;
+backslashes quote characters.
+Backslashes are more powerful
+in that they will cause otherwise equivalent phrases
+to compare differently \*- for example,
+.i user
+and
+.i
+"user"
+.r
+are equivalent,
+but
+.i \euser
+is different from either of them.
+This might be used
+to avoid normal aliasing
+or duplicate suppression algorithms.
+.pp
+Parentheses, angle brackets, and double quotes
+must be properly balanced and nested.
+The rewriting rules control remaining parsing\**.
+.(f
+\**Disclaimer: Some special processing is done
+after rewriting local names; see below.
+.)f
+.pp
+Although old style addresses are still accepted
+in most cases,
+the preferred address format
+is based on ARPANET-style domain-based addresses
+[Su82a].
+These addresses are based on a hierarchical, logical decomposition
+of the address space.
+The addresses are hierarchical in a sense
+similar to the U.S. postal addresses:
+the messages may first be routed to the correct state,
+with no initial consideration of the city
+or other addressing details.
+The addresses are logical
+in that each step in the hierarchy
+corresponds to a set of
+.q "naming authorities"
+rather than a physical network.
+.pp
+For example,
+the address:
+.(l
+eric@HostA.BigSite.ARPA
+.)l
+would first look up the domain
+BigSite
+in the namespace administrated by
+ARPA.
+A query could then be sent to
+BigSite
+for interpretation of
+HostA.
+Eventually the mail would arrive at
+HostA,
+which would then do final delivery
+to user
+.q eric.
+.sh 2 "Mail to Files and Programs"
+.pp
+Files and programs are legitimate message recipients.
+Files provide archival storage of messages,
+useful for project administration and history.
+Programs are useful as recipients in a variety of situations,
+for example,
+to maintain a public repository of systems messages
+(such as the Berkeley
+.i msgs
+program).
+.pp
+Any address passing through the initial parsing algorithm
+as a local address
+(i.e, not appearing to be a valid address for another mailer)
+is scanned for two special cases.
+If prefixed by a vertical bar (\c
+.q \^|\^ )
+the rest of the address is processed as a shell command.
+If the user name begins with a slash mark (\c
+.q /\^ )
+the name is used as a file name,
+instead of a login name.
+.sh 2 "Aliasing, Forwarding, Inclusion"
+.pp
+.i Sendmail
+reroutes mail three ways.
+Aliasing applies system wide.
+Forwarding allows each user to reroute incoming mail
+destined for that account.
+Inclusion directs
+.i sendmail
+to read a file for a list of addresses,
+and is normally used
+in conjunction with aliasing.
+.sh 3 "Aliasing"
+.pp
+Aliasing maps local addresses to address lists using a system-wide file.
+This file is hashed to speed access.
+Only addresses that parse as local
+are allowed as aliases;
+this guarantees a unique key
+(since there are no nicknames for the local host).
+.sh 3 "Forwarding"
+.pp
+After aliasing,
+if an recipient address specifies a local user
+.i sendmail
+searches for a
+.q .forward
+file in the recipient's home directory.
+If it exists,
+the message is
+.i not
+sent to that user,
+but rather to the list of addresses in that file.
+Often
+this list will contain only one address,
+and the feature will be used for network mail forwarding.
+.pp
+Forwarding also permits a user to specify a private incoming mailer.
+For example,
+forwarding to:
+.(b
+"\^|\|/usr/local/newmail myname"
+.)b
+will use a different incoming mailer.
+.sh 3 "Inclusion"
+.pp
+Inclusion is specified in RFC 733 [Crocker77] syntax:
+.(b
+:Include: pathname
+.)b
+An address of this form reads the file specified by
+.i pathname
+and sends to all users listed in that file.
+.pp
+The intent is
+.i not
+to support direct use of this feature,
+but rather to use this as a subset of aliasing.
+For example,
+an alias of the form:
+.(b
+project: :include:/usr/project/userlist
+.)b
+is a method of letting a project maintain a mailing list
+without interaction with the system administration,
+even if the alias file is protected.
+.pp
+It is not necessary to rebuild the index on the alias database
+when a :include: list is changed.
+.sh 2 "Message Collection"
+.pp
+Once all recipient addresses are parsed and verified,
+the message is collected.
+The message comes in two parts:
+a message header and a message body,
+separated by a blank line.
+The body is an uninterpreted
+sequence of text lines.
+.pp
+The header is formated as a series of lines
+of the form
+.(b
+	field-name: field-value
+.)b
+Field-value can be split across lines by starting the following
+lines with a space or a tab.
+Some header fields have special internal meaning,
+and have appropriate special processing.
+Other headers are simply passed through.
+Some header fields may be added automatically,
+such as time stamps.
+.sh 1 "THE UUCP PROBLEM"
+.pp
+Of particular interest
+is the UUCP network.
+The explicit routing
+used in the UUCP environment
+causes a number of serious problems.
+First,
+giving out an address
+is impossible
+without knowing the address of your potential correspondent.
+This is typically handled
+by specifying the address
+relative to some
+.q "well-known"
+host
+(e.g.,
+ucbvax or decvax).
+Second,
+it is often difficult to compute
+the set of addresses
+to reply to
+without some knowledge
+of the topology of the network.
+Although it may be easy for a human being
+to do this
+under many circumstances,
+a program does not have equally sophisticated heuristics
+built in.
+Third,
+certain addresses will become painfully and unnecessarily long,
+as when a message is routed through many hosts in the USENET.
+And finally,
+certain
+.q "mixed domain"
+addresses
+are impossible to parse unambiguously \*-
+e.g.,
+.(l
+decvax!ucbvax!lbl-h!user@LBL-CSAM
+.)l
+might have many possible resolutions,
+depending on whether the message was first routed
+to decvax
+or to LBL-CSAM.
+.pp
+To solve this problem,
+the UUCP syntax
+would have to be changed to use addresses
+rather than routes.
+For example,
+the address
+.q decvax!ucbvax!eric
+might be expressed as
+.q eric@ucbvax.UUCP
+(with the hop through decvax implied).
+This address would itself be a domain-based address;
+for example,
+an address might be of the form:
+.(l
+mark@d.cbosg.btl.UUCP
+.)l
+Hosts outside of Bell Telephone Laboratories
+would then only need to know
+how to get to a designated BTL relay,
+and the BTL topology
+would only be maintained inside Bell.
+.pp
+There are three major problems
+associated with turning UUCP addresses
+into something reasonable:
+defining the namespace,
+creating and propagating the necessary software,
+and building and maintaining the database.
+.sh 2 "Defining the Namespace"
+.pp
+Putting all UUCP hosts into a flat namespace
+(e.g.,
+.q \&...@host.UUCP )
+is not practical for a number of reasons.
+First,
+with over 1600 sites already,
+and (with the increasing availability of inexpensive microcomputers
+and autodialers)
+several thousand more coming within a few years,
+the database update problem
+is simply intractable
+if the namespace is flat.
+Second,
+there are almost certainly name conflicts today.
+Third,
+as the number of sites grow
+the names become ever less mnemonic.
+.pp
+It seems inevitable
+that there be some sort of naming authority
+for the set of top level names
+in the UUCP domain,
+as unpleasant a possibility
+as that may seem.
+It will simply not be possible
+to have one host resolving all names.
+It may however be possible
+to handle this
+in a fashion similar to that of assigning names of newsgroups
+in USENET.
+However,
+it will be essential to encourage everyone
+to become subdomains of an existing domain
+whenever possible \*-
+even though this will certainly bruise some egos.
+For example,
+if a new host named
+.q blid
+were to be added to the UUCP network,
+it would probably actually be addressed as
+.q d.bli.UUCP
+(i.e.,
+as host
+.q d
+in the pseudo-domain
+.q bli
+rather than as host
+.q blid
+in the UUCP domain).
+.sh 2 "Creating and Propagating the Software"
+.pp
+The software required to implement a consistent namespace
+is relatively trivial.
+Two modules are needed,
+one to handle incoming mail
+and one to handle outgoing mail.
+.pp
+The incoming module
+must be prepared to handle either old or new style addresses.
+New-style addresses
+can be passed through unchanged.
+Old style addresses
+must be turned into new style addresses
+where possible.
+.pp
+The outgoing module
+is slightly trickier.
+It must do a database lookup on the recipient addresses
+(passed on the command line)
+to determine what hosts to send the message to.
+If those hosts do not accept new-style addresses,
+it must transform all addresses in the header of the message
+into old style using the database lookup.
+.pp
+Both of these modules
+are straightforward
+except for the issue of modifying the header.
+It seems prudent to choose one format
+for the message headers.
+For a number of reasons,
+Berkeley has elected to use the ARPANET protocols
+for message formats.
+However,
+this protocol is somewhat difficult to parse.
+.pp
+Propagation is somewhat more difficult.
+There are a large number of hosts
+connected to UUCP
+that will want to run completely standard systems
+(for very good reasons).
+The strategy is not to convert the entire network \*-
+only enough of it it alleviate the problem.
+.sh 2 "Building and Maintaining the Database"
+.pp
+This is by far the most difficult problem.
+A prototype for this database
+already exists,
+but it is maintained by hand
+and does not pretend to be complete.
+.pp
+This problem will be reduced considerably
+if people choose to group their hosts
+into subdomains.
+This would require a global update
+only when a new top level domain
+joined the network.
+A message to a host in a subdomain
+could simply be routed to a known domain gateway
+for further processing.
+For example,
+the address
+.q eric@a.bli.UUCP
+might be routed to the
+.q bli
+gateway
+for redistribution;
+new hosts could be added
+within BLI
+without notifying the rest of the world.
+Of course,
+other hosts
+.i could
+be notified as an efficiency measure.
+.pp
+There may be more than one domain gateway.
+A domain such as BTL,
+for instance,
+might have a dozen gateways to the outside world;
+a non-BTL site
+could choose the closest gateway.
+The only restriction
+would be that all gateways
+maintain a consistent view of the domain
+they represent.
+.sh 2 "Logical Structure"
+.pp
+Logically,
+domains are organized into a tree.
+There need not be a host actually associated
+with each level in the tree \*-
+for example,
+there will be no host associated with the name
+.q UUCP.
+Similarly,
+an organization might group names together for administrative reasons;
+for example,
+the name
+.(l
+CAD.research.BigCorp.UUCP
+.)l
+might not actually have a host representing
+.q research.
+.pp
+However,
+it may frequently be convenient to have a host
+or hosts
+that
+.q represent
+a domain.
+For example,
+if a single host exists that
+represents
+Berkeley,
+then mail from outside Berkeley
+can forward mail to that host
+for further resolution
+without knowing Berkeley's
+(rather volatile)
+topology.
+This is not unlike the operation
+of the telephone network.
+.pp
+This may also be useful
+inside certain large domains.
+For example,
+at Berkeley it may be presumed
+that most hosts know about other hosts
+inside the Berkeley domain.
+But if they process an address
+that is unknown,
+they can pass it
+.q upstairs
+for further examination.
+Thus as new hosts are added
+only one host
+(the domain master)
+.i must
+be updated immediately;
+other hosts can be updated as convenient.
+.pp
+Ideally this name resolution process
+would be performed by a name server
+(e.g., [Su82b])
+to avoid unnecessary copying
+of the message.
+However,
+in a batch network
+such as UUCP
+this could result in unnecessary delays.
+.sh 1 "COMPARISON WITH DELIVERMAIL"
+.pp
+.i Sendmail
+is an outgrowth of
+.i delivermail .
+The primary differences are:
+.np
+Configuration information is not compiled in.
+This change simplifies many of the problems
+of moving to other machines.
+It also allows easy debugging of new mailers.
+.np
+Address parsing is more flexible.
+For example,
+.i delivermail
+only supported one gateway to any network,
+whereas
+.i sendmail
+can be sensitive to host names
+and reroute to different gateways.
+.np
+Forwarding and
+:include:
+features eliminate the requirement that the system alias file
+be writable by any user
+(or that an update program be written,
+or that the system administration make all changes).
+.np
+.i Sendmail
+supports message batching across networks
+when a message is being sent to multiple recipients.
+.np
+A mail queue is provided in
+.i sendmail.
+Mail that cannot be delivered immediately
+but can potentially be delivered later
+is stored in this queue for a later retry.
+The queue also provides a buffer against system crashes;
+after the message has been collected
+it may be reliably redelivered
+even if the system crashes during the initial delivery.
+.np
+.i Sendmail
+uses the networking support provided by 4.2BSD
+to provide a direct interface networks such as the ARPANET
+and/or Ethernet
+using SMTP (the Simple Mail Transfer Protocol)
+over a TCP/IP connection.
+.+c
+.ce
+REFERENCES
+.nr ii 1.5i
+.ip [Crocker77]
+Crocker, D. H.,
+Vittal, J. J.,
+Pogran, K. T.,
+and
+Henderson, D. A. Jr.,
+.ul
+Standard for the Format of ARPA Network Text Messages.
+RFC 733,
+NIC 41952.
+In [Feinler78].
+November 1977.
+.ip [Crocker82]
+Crocker, D. H.,
+.ul
+Standard for the Format of Arpa Internet Text Messages.
+RFC 822.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+August 1982.
+.ip [Feinler78]
+Feinler, E.,
+and
+Postel, J.
+(eds.),
+.ul
+ARPANET Protocol Handbook.
+NIC 7104,
+Network Information Center,
+SRI International,
+Menlo Park, California.
+1978.
+.ip [Nowitz78]
+Nowitz, D. A.,
+and
+Lesk, M. E.,
+.ul
+A Dial-Up Network of UNIX Systems.
+Bell Laboratories.
+In
+UNIX Programmer's Manual, Seventh Edition,
+Volume 2.
+August, 1978.
+.ip [Schmidt79]
+Schmidt, E.,
+.ul
+An Introduction to the Berkeley Network.
+University of California, Berkeley California.
+1979.
+.ip [Shoens79]
+Shoens, K.,
+.ul
+Mail Reference Manual.
+University of California, Berkeley.
+In UNIX Programmer's Manual,
+Seventh Edition,
+Volume 2C.
+December 1979.
+.ip [Solomon81]
+Solomon, M.,
+Landweber, L.,
+and
+Neuhengen, D.,
+.ul
+The Design of the CSNET Name Server.
+CS-DN-2.
+University of Wisconsin,
+Madison.
+October 1981.
+.ip [Su82a]
+Su, Zaw-Sing,
+and
+Postel, Jon,
+.ul
+The Domain Naming Convention for Internet User Applications.
+RFC819.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+August 1982.
+.ip [Su82b]
+Su, Zaw-Sing,
+.ul
+A Distributed System for Internet Name Service.
+RFC830.
+Network Information Center,
+SRI International,
+Menlo Park, California.
+October 1982.
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+429 Q(addresses where possible.)102 441 Q 2.247
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+Q(forw)102 268.8 Q .796
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+(olatile\) topol-)-.2 F(ogy)102 280.8 Q 5(.T)-.65 G(his is not unlik)129.96
+280.8 Q 2.5(et)-.1 G(he operation of the telephone netw)198.76 280.8 Q(ork.)-.1
+E .053(This may also be useful inside certain lar)127 297 R .053(ge domains.)
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+-.15(ve)-.4 G(nient.).15 E .583(Ideally this name resolution process w)127
+361.2 R .583(ould be performed by a name serv)-.1 F .582
+(er \(e.g., [Su82b]\) to)-.15 F -.2(avo)102 373.2 S .507(id unnecessary cop).2
+F .507(ying of the message.)-.1 F(Ho)5.507 E(we)-.25 E -.15(ve)-.25 G 1.307 -.4
+(r, i).15 H 3.007(nab).4 G .507(atch netw)346.623 373.2 R .508
+(ork such as UUCP this could)-.1 F(result in unnecessary delays.)102 385.2 Q F0
+2.5(5. COMP)72 409.2 R(ARISON WITH DELIVERMAIL)-.74 E F2(Sendmail)112 425.4 Q
+F1(is an outgro)2.5 E(wth of)-.25 E F2(delivermail)2.5 E F1 5(.T)C
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+92 441.6 R .573(information is not compiled in.)3.073 F .572
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+.572(he problems of)442.866 441.6 R(mo)118.66 453.6 Q(ving to other machines.)
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+E .3 -.15(ve t)-.25 H 2.5(oh).15 G(ost names and reroute to dif)310.9 481.8 Q
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+-.15 E 2.878(arding and :include: features eliminate the requirement that the \
+system alias \214le be)-.1 F 1.073(writable by an)118.66 510 R 3.573(yu)-.15 G
+1.073
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+191.439 510 R(mak)118.66 522 Q 2.5(ea)-.1 G(ll changes\).)147.16 522 Q(\(4\))92
+538.2 Q F2(Sendmail)118.66 538.2 Q F1 .443
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+(orks when a message is being sent to multiple)-.1 F(recipients.)118.66 550.2 Q
+12.5(\(5\) A)92 566.4 R 1.945(mail queue is pro)4.445 F 1.946(vided in)-.15 F
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+1.946(red immediately b).15 F 1.946(ut can)-.2 F .439(potentially be deli)
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+-.25(ff).2 G .838(er ag).25 F .839(ainst system crashes; after the message has\
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+Q -.15(ve)-.25 G 2.5(ni).15 G 2.5(ft)162.13 602.4 S
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+E(.)-.65 E(\(6\))92 618.6 Q F2(Sendmail)118.66 618.6 Q F1 1.351(uses the netw)
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+(vide a direct interf)-.15 F 1.35(ace net-)-.1 F -.1(wo)118.66 630.6 S .283
+(rks such as the ARP).1 F .284
+(ANET and/or Ethernet using SMTP \(the Simple Mail T)-.92 F .284
+(ransfer Protocol\))-.35 F -.15(ove)118.66 642.6 S 2.5(raT).15 G
+(CP/IP connection.)151.68 642.6 Q F0 -1(Ve)72 756 S(rsion 8.2)1 E
+(USENIX \255 J)249.805 756 Q(an 83)-.15 E(Last Mod 11/27/93)424.55 756 Q EP
+%%Page: 9 9
+%%BeginPageSetup
+BP
+%%EndPageSetup
+/F0 10/Times-Roman@0 SF(REFERENCES)264.105 132 Q([Crock)87 148.2 Q 56.73
+(er77] Crock)-.1 F(er)-.1 E 3.535(,D)-.4 G 3.535(.H)239.965 148.2 S 1.035(., V)
+253.22 148.2 R 1.035(ittal, J. J., Pogran, K. T)-.6 F 1.035
+(., and Henderson, D. A. Jr)-.74 F(.,)-.55 E/F1 10/Times-Italic@0 SF(Stan-)
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+(ormat of ARP)-1.05 F 2.627(AN)-.9 G .128(etwork T)320.112 160.2 R -.2(ex)-.92
+G 2.628(tM).2 G(essa)377.018 160.2 Q -.1(ge)-.1 G(s.).1 E F0 .128
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+(mber 1977.).15 E([Crock)87 188.4 Q 56.73(er82] Crock)-.1 F(er)-.1 E 4.272(,D)
+-.4 G 4.272(.H)240.702 188.4 S(.,)254.694 188.4 Q F1(Standar)4.272 E 4.272(df)
+-.37 G 1.772(or the F)307.318 188.4 R 1.772(ormat of Arpa Internet T)-1.05 F
+-.2(ex)-.92 G 4.271(tM).2 G(essa)471.15 188.4 Q -.1(ge)-.1 G(s.).1 E F0 .025
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+-.4 G .026(RI International, Menlo P)363.506 200.4 R .026(ark, Cali-)-.15 F 2.5
+(fornia. August)195 212.4 R(1982.)2.5 E 60.51([Feinler78] Feinler)87 228.6 R
+2.938(,E)-.4 G .438(., and Postel, J.)234.478 228.6 R(\(eds.\),)5.438 E F1(ARP)
+2.938 E .438(ANET Pr)-.9 F .438(otocol Handbook.)-.45 F F0 .438(NIC 7104,)5.438
+F(Netw)195 240.6 Q 3.011(ork Information Center)-.1 F 5.511(,S)-.4 G 3.012
+(RI International, Menlo P)328.513 240.6 R 3.012(ark, California.)-.15 F(1978.)
+195 252.6 Q([No)87 268.8 Q 59.65(witz78] No)-.25 F .479
+(witz, D. A., and Lesk, M. E.,)-.25 F F1 2.978(AD)2.978 G .478
+(ial-Up Network of UNIX Systems.)344.67 268.8 R F0(Bell)5.478 E 3.528
+(Laboratories. In)195 280.8 R 1.029(UNIX Programmer')3.528 F 3.529(sM)-.55 G
+1.029(anual, Se)363.524 280.8 R -.15(ve)-.25 G 1.029(nth Edition, V).15 F 1.029
+(olume 2.)-1.29 F(August, 1978.)195 292.8 Q 55.5([Schmidt79] Schmidt,)87 309 R
+(E.,)2.631 E F1 .131(An Intr)2.631 F .131(oduction to the Berk)-.45 F(ele)-.1 E
+2.631(yN)-.3 G(etwork.)382.277 309 Q F0(Uni)5.131 E -.15(ve)-.25 G .131
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+(alifornia. 1979.)257.24 321 R 59.95([Shoens79] Shoens,)87 337.2 R(K.,)3.227 E
+F1 .728(Mail Refer)3.227 F .728(ence Manual.)-.37 F F0(Uni)5.728 E -.15(ve)-.25
+G .728(rsity of California, Berk).15 F(ele)-.1 E 4.528 -.65(y. I)-.15 H(n).65 E
+3.478(UNIX Programmer')195 349.2 R 5.977(sM)-.55 G 3.477(anual, Se)297.495
+349.2 R -.15(ve)-.25 G 3.477(nth Edition, V).15 F 3.477(olume 2C.)-1.29 F
+(December)8.477 E(1979.)195 361.2 Q 52.72([Solomon81] Solomon,)87 377.4 R .251
+(M., Landweber)2.75 F 2.751(,L)-.4 G .251(., and Neuhengen, D.,)308.952 377.4 R
+F1 .251(The Design of the CSNET)2.751 F .397(Name Server)195 389.4 R(.)-1.11 E
+F0 2.896(CS-DN-2. Uni)5.397 F -.15(ve)-.25 G .396(rsity of W).15 F .396
+(isconsin, Madison.)-.4 F .396(October 1981.)5.396 F 73.84([Su82a] Su,)87 405.6
+R(Za)2.844 E .344(w-Sing, and Postel, Jon,)-.15 F F1 .344
+(The Domain Naming Con)2.844 F .344(vention for Internet)-.4 F 2.71
+(User Applications.)195 417.6 R F0 5.21(RFC819. Netw)7.71 F 2.71
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+([Su82b] Su,)87 445.8 R(Za)4.174 E(w-Sing,)-.15 E F1 4.174(AD)4.174 G(istrib)
+275.702 445.8 Q 1.675(uted System for Internet Name Service)-.2 F(.)-.15 E F0
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+-.4 G 3.011(RI International, Menlo P)328.516 457.8 R 3.011(ark, California.)
+-.15 F(October 1982.)195 469.8 Q/F2 10/Times-Bold@0 SF(Mail Systems and Addr)72
+756 Q(essing in 4.2bsd)-.18 E(9)499 756 Q EP
+%%Trailer
+end
+%%EOF
diff --git a/mail.local/Makefile b/mail.local/Makefile
new file mode 100644
index 0000000..e8556d8
--- /dev/null
+++ b/mail.local/Makefile
@@ -0,0 +1,9 @@
+#	@(#)Makefile	8.1 (Berkeley) 7/19/93
+
+PROG=	mail.local
+MAN8=	mail.local.0
+BINOWN=	root
+BINMODE=4555
+INSTALLFLAGS=-fschg
+
+.include <bsd.prog.mk>
diff --git a/mail.local/Makefile.dist b/mail.local/Makefile.dist
new file mode 100644
index 0000000..8faf755
--- /dev/null
+++ b/mail.local/Makefile.dist
@@ -0,0 +1,38 @@
+#	@(#)Makefile.dist	8.4 (Berkeley) 2/19/97
+
+BINDIR=	${DESTDIR}/usr/lib
+BINOWN=	root
+BINMODE=4555
+
+# For Solaris, uncomment one of the CC= lines and the LIBS= line
+# Also, if you're running 2.6 or later, uncomment the ENVDEF= line
+#CC=	cc -Xc
+#CC=	gcc
+#LIBS=	-lsocket -lnsl
+#ENVDEF=	-DSOLARIS=20600
+
+# Which *roff program has -mandoc support
+NROFF=	groff -Tascii
+#NROFF=	nroff -h
+MANDOC=	-mandoc
+
+ALL=	mail.local mail.local.0
+
+all: ${ALL}
+
+mail.local: mail.local.c
+	${CC} -O -o mail.local ${ENVDEF} mail.local.c ${LIBS}
+
+mail.local.0: mail.local.8
+	${NROFF} ${MANDOC} mail.local.8 > mail.local.0
+
+install: install-mail.local install-docs
+
+install-mail.local: mail.local
+	install -s -o ${BINOWN} -m ${BINMODE} mail.local ${BINDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: mail.local.0
+
+clean:
+	rm -f mail.local core a.out mail.local.0
diff --git a/mail.local/mail.local.0 b/mail.local/mail.local.0
new file mode 100644
index 0000000..ec60526
--- /dev/null
+++ b/mail.local/mail.local.0
@@ -0,0 +1,47 @@
+MAIL.LOCAL(8)             BSD System Manager's Manual            MAIL.LOCAL(8)
+
+NNAAMMEE
+     mmaaiill..llooccaall - store mail in a mailbox
+
+SSYYNNOOPPSSIISS
+     mmaaiill..llooccaall [--ff _f_r_o_m] _u_s_e_r _._._.
+
+DDEESSCCRRIIPPTTIIOONN
+     MMaaiill..llooccaall reads the standard input up to an end-of-file and appends it
+     to each _u_s_e_r_'_s _m_a_i_l file.  The _u_s_e_r must be a valid user name.
+
+     The options are as follows:
+
+     --ff _f_r_o_m  Specify the sender's name.
+
+     Individual mail messages in the mailbox are delimited by an empty line
+     followed by a line beginning with the string ``From ''.  A line contain-
+     ing the string ``From '', the sender's name and a time stamp is prepended
+     to each delivered mail message.  A blank line is appended to each mes-
+     sage.  A greater-than character (``>'') is prepended to any line in the
+     message which could be mistaken for a ``From '' delimiter line.
+
+     The mail files are exclusively locked with flock(2) while mail is append-
+     ed.
+
+     If the ``biff'' service is returned by getservbyname(3),  the biff server
+     is notified of delivered mail.
+
+     The mmaaiill..llooccaall utility exits 0 on success, and >0 if an error occurs.
+
+EENNVVIIRROONNMMEENNTT
+     TZ      Used to set the appropriate time zone on the timestamp.
+
+FFIILLEESS
+     /tmp/local.XXXXXX  temporary files
+     /var/mail/user     user's mailbox directory
+
+SSEEEE AALLSSOO
+     mail(1),  xsend(1),  flock(2),  getservbyname(3),  comsat(8),  send-
+     mail(8)
+
+HHIISSTTOORRYY
+     A superset of mmaaiill..llooccaall (handling mailbox reading as well as mail deliv-
+     ery) appeared in Version 7 AT&T UNIX.  as the program mmaaiill.
+
+BSDI BSD/OS                    December 11, 1993                             1
diff --git a/mail.local/mail.local.8 b/mail.local/mail.local.8
new file mode 100644
index 0000000..661615c
--- /dev/null
+++ b/mail.local/mail.local.8
@@ -0,0 +1,105 @@
+.\" Copyright (c) 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)mail.local.8	8.2 (Berkeley) 12/11/93
+.\"
+.Dd December 11, 1993
+.Dt MAIL.LOCAL 8
+.Os
+.Sh NAME
+.Nm mail.local
+.Nd store mail in a mailbox
+.Sh SYNOPSIS
+.Nm mail.local
+.Op Fl f Ar from
+.Ar user ...
+.Sh DESCRIPTION
+.Nm Mail.local
+reads the standard input up to an end-of-file and appends it to each
+.Ar user's
+.Pa mail
+file.
+The
+.Ar user
+must be a valid user name.
+.Pp
+The options are as follows:
+.Bl -tag -width xxxfrom
+.It Fl f Ar from
+Specify the sender's name.
+.El
+.Pp
+Individual mail messages in the mailbox are delimited by an empty
+line followed by a line beginning with the string ``From ''.
+A line containing the string ``From '', the sender's name and a time stamp
+is prepended to each delivered mail message.
+A blank line is appended to each message.
+A greater-than character (``>'') is prepended to any line in the message
+which could be mistaken for a ``From '' delimiter line.
+.Pp
+The mail files are exclusively locked with 
+.Xr flock 2
+while mail is appended.
+.Pp
+If the ``biff'' service is returned by
+.Xr getservbyname 3 ,
+the biff server is notified of delivered mail.
+.Pp
+The
+.Nm mail.local
+utility exits 0 on success, and >0 if an error occurs.
+.Sh ENVIRONMENT
+.Bl -tag -width indent
+.It Ev TZ
+Used to set the appropriate time zone on the timestamp.
+.El
+.Sh FILES
+.Bl -tag -width /tmp/local.XXXXXX -compact
+.It Pa /tmp/local.XXXXXX
+temporary files
+.It Pa /var/mail/user
+user's mailbox directory
+.El
+.Sh SEE ALSO
+.Xr mail 1 ,
+.Xr xsend 1 ,
+.Xr flock 2 ,
+.Xr getservbyname 3 ,
+.Xr comsat 8 ,
+.Xr sendmail 8
+.Sh HISTORY
+A superset of
+.Nm mail.local
+(handling mailbox reading as well as mail delivery)
+appeared in
+.At v7 .
+as the program
+.Nm mail .
diff --git a/mail.local/mail.local.c b/mail.local/mail.local.c
new file mode 100644
index 0000000..e7f1211
--- /dev/null
+++ b/mail.local/mail.local.c
@@ -0,0 +1,945 @@
+/*-
+ * Copyright (c) 1990, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1990, 1993, 1994\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)mail.local.c	8.43 (Berkeley) 8/2/97";
+#endif /* not lint */
+
+/*
+ * This is not intended to compile on System V derived systems
+ * such as Solaris or HP-UX, since they use a totally different
+ * approach to mailboxes (essentially, they have a setgid program
+ * rather than setuid, and they rely on the ability to "give away"
+ * files to do their work).  IT IS NOT A BUG that this doesn't
+ * compile on such architectures.
+ */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <time.h>
+#include <unistd.h>
+#ifdef EX_OK
+# undef EX_OK		/* unistd.h may have another use for this */
+#endif
+#include <sysexits.h>
+#include <ctype.h>
+
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#if (defined(sun) && defined(__svr4__)) || defined(__SVR4)
+# define USE_LOCKF	1
+# define USE_SETEUID	1
+# define _PATH_MAILDIR	"/var/mail"
+#endif
+
+#if defined(_AIX)
+# define USE_LOCKF	1
+# define USET_SETEUID	1
+# define USE_VSYSLOG	0
+#endif
+
+#if defined(ultrix)
+# define USE_VSYSLOG	0
+#endif
+
+#if defined(__osf__)
+# define USE_VSYSLOG	0
+#endif
+
+#if defined(NeXT)
+# include <libc.h>
+# define _PATH_MAILDIR	"/usr/spool/mail"
+# define __dead		/* empty */
+# define S_IRUSR	S_IREAD
+# define S_IWUSR	S_IWRITE
+#endif
+
+/*
+ * If you don't have flock, you could try using lockf instead.
+ */
+
+#ifdef USE_LOCKF
+# define flock(a, b)	lockf(a, b, 0)
+# define LOCK_EX	F_LOCK
+#endif
+
+#ifndef USE_VSYSLOG
+# define USE_VSYSLOG	1
+#endif
+
+#ifndef LOCK_EX
+# include <sys/file.h>
+#endif
+
+#ifdef BSD4_4
+# include "pathnames.h"
+#endif
+
+#ifndef __P
+# ifdef __STDC__
+#  define __P(protos)	protos
+# else
+#  define __P(protos)	()
+#  define const
+# endif
+#endif
+#ifndef __dead
+# if defined(__GNUC__) && (__GNUC__ < 2 || __GNUC_MINOR__ < 5) && !defined(__STRICT_ANSI__)
+#  define __dead	__volatile
+# else
+#  define __dead
+# endif
+#endif
+
+#ifdef BSD4_4
+# define HAS_ST_GEN	1
+#else
+# define _BSD_VA_LIST_	va_list
+#endif
+
+#if defined(BSD4_4) || defined(linux)
+# define HASSNPRINTF	1
+#else
+extern char	*strerror __P((int));
+extern int	snprintf __P((char *, size_t, const char *, ...));
+extern FILE	*fdopen __P((int, const char *));
+#endif
+
+#if SOLARIS >= 20600 || (SOLARIS < 10000 && SOLARIS >= 206)
+# define HASSNPRINTF	1		/* has snprintf starting in 2.6 */
+#endif
+
+/*
+ * If you don't have setreuid, and you have saved uids, and you have
+ * a seteuid() call that doesn't try to emulate using setuid(), then
+ * you can try defining USE_SETEUID.
+ */
+#ifdef USE_SETEUID
+# define setreuid(r, e)		seteuid(e)
+#endif
+
+#ifndef _PATH_LOCTMP
+# define _PATH_LOCTMP	"/tmp/local.XXXXXX"
+#endif
+#ifndef _PATH_MAILDIR
+# define _PATH_MAILDIR	"/var/spool/mail"
+#endif
+
+#ifndef S_ISREG
+# define S_ISREG(mode)	(((mode) & _S_IFMT) == S_IFREG)
+#endif
+
+int eval = EX_OK;			/* sysexits.h error value. */
+
+void		deliver __P((int, char *));
+void		e_to_sys __P((int));
+__dead void	err __P((const char *, ...));
+void		notifybiff __P((char *));
+int		store __P((char *));
+void		usage __P((void));
+void		vwarn __P((const char *, _BSD_VA_LIST_));
+void		warn __P((const char *, ...));
+void		lockmbox __P((char *));
+void		unlockmbox __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	struct passwd *pw;
+	int ch, fd;
+	uid_t uid;
+	char *from;
+	extern char *optarg;
+	extern int optind;
+
+	/* make sure we have some open file descriptors */
+	for (fd = 10; fd < 30; fd++)
+		(void) close(fd);
+
+	/* use a reasonable umask */
+	(void) umask(0077);
+
+#ifdef LOG_MAIL
+	openlog("mail.local", 0, LOG_MAIL);
+#else
+	openlog("mail.local", 0);
+#endif
+
+	from = NULL;
+	while ((ch = getopt(argc, argv, "df:r:")) != EOF)
+		switch(ch) {
+		case 'd':		/* Backward compatible. */
+			break;
+		case 'f':
+		case 'r':		/* Backward compatible. */
+			if (from != NULL) {
+				warn("multiple -f options");
+				usage();
+			}
+			from = optarg;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (!*argv)
+		usage();
+
+	/*
+	 * If from not specified, use the name from getlogin() if the
+	 * uid matches, otherwise, use the name from the password file
+	 * corresponding to the uid.
+	 */
+	uid = getuid();
+	if (!from && (!(from = getlogin()) ||
+	    !(pw = getpwnam(from)) || pw->pw_uid != uid))
+		from = (pw = getpwuid(uid)) ? pw->pw_name : "???";
+
+	/*
+	 * There is no way to distinguish the error status of one delivery
+	 * from the rest of the deliveries.  So, if we failed hard on one
+	 * or more deliveries, but had no failures on any of the others, we
+	 * return a hard failure.  If we failed temporarily on one or more
+	 * deliveries, we return a temporary failure regardless of the other
+	 * failures.  This results in the delivery being reattempted later
+	 * at the expense of repeated failures and multiple deliveries.
+	 */
+	for (fd = store(from); *argv; ++argv)
+		deliver(fd, *argv);
+	exit(eval);
+}
+
+int
+store(from)
+	char *from;
+{
+	FILE *fp;
+	time_t tval;
+	int fd, eline;
+	char line[2048];
+	char tmpbuf[sizeof _PATH_LOCTMP + 1];
+
+	strcpy(tmpbuf, _PATH_LOCTMP);
+	if ((fd = mkstemp(tmpbuf)) == -1 || (fp = fdopen(fd, "w+")) == NULL) {
+		e_to_sys(errno);
+		err("unable to open temporary file");
+	}
+	(void)unlink(tmpbuf);
+
+	(void)time(&tval);
+	(void)fprintf(fp, "From %s %s", from, ctime(&tval));
+
+	line[0] = '\0';
+	for (eline = 1; fgets(line, sizeof(line), stdin);) {
+		if (line[0] == '\n')
+			eline = 1;
+		else {
+			if (eline && line[0] == 'F' &&
+			    !memcmp(line, "From ", 5))
+				(void)putc('>', fp);
+			eline = 0;
+		}
+		(void)fprintf(fp, "%s", line);
+		if (ferror(fp)) {
+			e_to_sys(errno);
+			err("temporary file write error");
+		}
+	}
+
+	/* If message not newline terminated, need an extra. */
+	if (!strchr(line, '\n'))
+		(void)putc('\n', fp);
+	/* Output a newline; note, empty messages are allowed. */
+	(void)putc('\n', fp);
+
+	if (fflush(fp) == EOF || ferror(fp)) {
+		e_to_sys(errno);
+		err("temporary file write error");
+	}
+	return (fd);
+}
+
+void
+deliver(fd, name)
+	int fd;
+	char *name;
+{
+	struct stat fsb, sb;
+	struct passwd *pw;
+	int mbfd, nr, nw, off;
+	char *p;
+	char biffmsg[100], buf[8*1024], path[MAXPATHLEN];
+	off_t curoff;
+
+	/*
+	 * Disallow delivery to unknown names -- special mailboxes can be
+	 * handled in the sendmail aliases file.
+	 */
+	if (!(pw = getpwnam(name))) {
+		if (eval != EX_TEMPFAIL)
+			eval = EX_UNAVAILABLE;
+		warn("unknown name: %s", name);
+		return;
+	}
+	endpwent();
+
+	/*
+	 * Keep name reasonably short to avoid buffer overruns.
+	 *	This isn't necessary on BSD because of the proper
+	 *	definition of snprintf(), but it can cause problems
+	 *	on other systems.
+	 * Also, clear out any bogus characters.
+	 */
+
+	if (strlen(name) > 40)
+		name[40] = '\0';
+	for (p = name; *p != '\0'; p++)
+	{
+		if (!isascii(*p))
+			*p &= 0x7f;
+		else if (!isprint(*p))
+			*p = '.';
+	}
+
+	(void)snprintf(path, sizeof(path), "%s/%s", _PATH_MAILDIR, name);
+
+	/*
+	 * If the mailbox is linked or a symlink, fail.  There's an obvious
+	 * race here, that the file was replaced with a symbolic link after
+	 * the lstat returned, but before the open.  We attempt to detect
+	 * this by comparing the original stat information and information
+	 * returned by an fstat of the file descriptor returned by the open.
+	 *
+	 * NB: this is a symptom of a larger problem, that the mail spooling
+	 * directory is writeable by the wrong users.  If that directory is
+	 * writeable, system security is compromised for other reasons, and
+	 * it cannot be fixed here.
+	 *
+	 * If we created the mailbox, set the owner/group.  If that fails,
+	 * just return.  Another process may have already opened it, so we
+	 * can't unlink it.  Historically, binmail set the owner/group at
+	 * each mail delivery.  We no longer do this, assuming that if the
+	 * ownership or permissions were changed there was a reason.
+	 *
+	 * XXX
+	 * open(2) should support flock'ing the file.
+	 */
+tryagain:
+	lockmbox(path);
+	if (lstat(path, &sb) < 0) {
+		mbfd = open(path,
+		    O_APPEND|O_CREAT|O_EXCL|O_WRONLY, S_IRUSR|S_IWUSR);
+		if (lstat(path, &sb) < 0)
+		{
+			eval = EX_CANTCREAT;
+			warn("%s: lstat: file changed after open", path);
+			goto err1;
+		}
+		else
+			sb.st_uid = pw->pw_uid;
+		if (mbfd == -1) {
+			if (errno == EEXIST)
+				goto tryagain;
+		} else if (fchown(mbfd, pw->pw_uid, pw->pw_gid)) {
+			e_to_sys(errno);
+			warn("chown %u.%u: %s", pw->pw_uid, pw->pw_gid, name);
+			goto err1;
+		}
+	} else if (sb.st_nlink != 1 || !S_ISREG(sb.st_mode)) {
+		e_to_sys(errno);
+		warn("%s: irregular file", path);
+		goto err0;
+	} else if (sb.st_uid != pw->pw_uid) {
+		eval = EX_CANTCREAT;
+		warn("%s: wrong ownership (%d)", path, sb.st_uid);
+		goto err0;
+	} else {
+		mbfd = open(path, O_APPEND|O_WRONLY, 0);
+	}
+
+	if (mbfd == -1) {
+		e_to_sys(errno);
+		warn("%s: %s", path, strerror(errno));
+		goto err0;
+	} else if (fstat(mbfd, &fsb) < 0 ||
+	    fsb.st_nlink != 1 ||
+	    sb.st_nlink != 1 ||
+	    !S_ISREG(fsb.st_mode) ||
+	    sb.st_dev != fsb.st_dev ||
+	    sb.st_ino != fsb.st_ino ||
+#if HAS_ST_GEN && 0		/* AFS returns random values for st_gen */
+	    sb.st_gen != fsb.st_gen ||
+#endif
+	    sb.st_uid != fsb.st_uid) {
+		eval = EX_TEMPFAIL;
+		warn("%s: fstat: file changed after open", path);
+		goto err1;
+	}
+
+	/* Wait until we can get a lock on the file. */
+	if (flock(mbfd, LOCK_EX)) {
+		e_to_sys(errno);
+		warn("%s: %s", path, strerror(errno));
+		goto err1;
+	}
+
+	/* Get the starting offset of the new message for biff. */
+	curoff = lseek(mbfd, (off_t)0, SEEK_END);
+	(void)snprintf(biffmsg, sizeof(biffmsg),
+		sizeof curoff > sizeof(long) ? "%s@%qd\n" : "%s@%ld\n", 
+		name, curoff);
+
+	/* Copy the message into the file. */
+	if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
+		e_to_sys(errno);
+		warn("temporary file: %s", strerror(errno));
+		goto err1;
+	}
+	if (setreuid(0, pw->pw_uid) < 0) {
+		e_to_sys(errno);
+		warn("setreuid(0, %d): %s (r=%d, e=%d)",
+		     pw->pw_uid, strerror(errno), getuid(), geteuid());
+		goto err1;
+	}
+#ifdef DEBUG
+	printf("new euid = %d\n", geteuid());
+#endif
+	while ((nr = read(fd, buf, sizeof(buf))) > 0)
+		for (off = 0; off < nr; off += nw)
+			if ((nw = write(mbfd, buf + off, nr - off)) < 0) {
+				e_to_sys(errno);
+				warn("%s: %s", path, strerror(errno));
+				goto err3;
+			}
+	if (nr < 0) {
+		e_to_sys(errno);
+		warn("temporary file: %s", strerror(errno));
+		goto err3;
+	}
+
+	/* Flush to disk, don't wait for update. */
+	if (fsync(mbfd)) {
+		e_to_sys(errno);
+		warn("%s: %s", path, strerror(errno));
+err3:
+		if (setreuid(0, 0) < 0) {
+			e_to_sys(errno);
+			warn("setreuid(0, 0): %s", strerror(errno));
+		}
+#ifdef DEBUG
+		printf("reset euid = %d\n", geteuid());
+#endif
+err2:		(void)ftruncate(mbfd, curoff);
+err1:		(void)close(mbfd);
+err0:		unlockmbox();
+		return;
+	}
+		
+	/* Close and check -- NFS doesn't write until the close. */
+	if (close(mbfd)) {
+		e_to_sys(errno);
+		warn("%s: %s", path, strerror(errno));
+		truncate(path, curoff);
+	} else
+		notifybiff(biffmsg);
+
+	if (setreuid(0, 0) < 0) {
+		e_to_sys(errno);
+		warn("setreuid(0, 0): %s", strerror(errno));
+	}
+#ifdef DEBUG
+	printf("reset euid = %d\n", geteuid());
+#endif
+	unlockmbox();
+}
+
+/*
+ * user.lock files are necessary for compatibility with other
+ * systems, e.g., when the mail spool file is NFS exported.
+ * Alas, mailbox locking is more than just a local matter.
+ * EPA 11/94.
+ */
+
+char	lockname[MAXPATHLEN];
+int	locked = 0;
+
+void
+lockmbox(path)
+	char *path;
+{
+	int statfailed = 0;
+
+	if (locked)
+		return;
+	if (strlen(path) + 6 > sizeof lockname)
+		return;
+	sprintf(lockname, "%s.lock", path);
+	for (;; sleep(5)) {
+		int fd;
+		struct stat st;
+		time_t now;
+
+		fd = open(lockname, O_WRONLY|O_EXCL|O_CREAT, 0);
+		if (fd >= 0) {
+			locked = 1;
+			close(fd);
+			return;
+		}
+		if (stat(lockname, &st) < 0) {
+			if (statfailed++ > 5)
+				return;
+			continue;
+		}
+		statfailed = 0;
+		time(&now);
+		if (now < st.st_ctime + 300)
+			continue;
+		unlink(lockname);
+	}
+}
+
+void
+unlockmbox()
+{
+	if (!locked)
+		return;
+	unlink(lockname);
+	locked = 0;
+}
+
+void
+notifybiff(msg)
+	char *msg;
+{
+	static struct sockaddr_in addr;
+	static int f = -1;
+	struct hostent *hp;
+	struct servent *sp;
+	int len;
+
+	if (!addr.sin_family) {
+		/* Be silent if biff service not available. */
+		if (!(sp = getservbyname("biff", "udp")))
+			return;
+		if (!(hp = gethostbyname("localhost"))) {
+			warn("localhost: %s", strerror(errno));
+			return;
+		}
+		addr.sin_family = hp->h_addrtype;
+		memcpy(&addr.sin_addr, hp->h_addr, hp->h_length);
+		addr.sin_port = sp->s_port;
+	}
+	if (f < 0 && (f = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
+		warn("socket: %s", strerror(errno));
+		return;
+	}
+	len = strlen(msg) + 1;
+	if (sendto(f, msg, len, 0, (struct sockaddr *)&addr, sizeof(addr))
+	    != len)
+		warn("sendto biff: %s", strerror(errno));
+}
+
+void
+usage()
+{
+	eval = EX_USAGE;
+	err("usage: mail.local [-f from] user ...");
+}
+
+#if __STDC__
+void
+err(const char *fmt, ...)
+#else
+void
+err(fmt, va_alist)
+	const char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	vwarn(fmt, ap);
+	va_end(ap);
+
+	exit(eval);
+}
+
+void
+#if __STDC__
+warn(const char *fmt, ...)
+#else
+warn(fmt, va_alist)
+	const char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	vwarn(fmt, ap);
+	va_end(ap);
+}
+
+void
+vwarn(fmt, ap)
+	const char *fmt;
+	_BSD_VA_LIST_ ap;
+{
+	/*
+	 * Log the message to stderr.
+	 *
+	 * Don't use LOG_PERROR as an openlog() flag to do this,
+	 * it's not portable enough.
+	 */
+	if (eval != EX_USAGE)
+		(void)fprintf(stderr, "mail.local: ");
+	(void)vfprintf(stderr, fmt, ap);
+	(void)fprintf(stderr, "\n");
+
+#if USE_VSYSLOG
+	/* Log the message to syslog. */
+	vsyslog(LOG_ERR, fmt, ap);
+#else
+	{
+		char fmtbuf[10240];
+
+		(void) vsprintf(fmtbuf, fmt, ap);
+		syslog(LOG_ERR, "%s", fmtbuf);
+	}
+#endif
+}
+
+/*
+ * e_to_sys --
+ *	Guess which errno's are temporary.  Gag me.
+ */
+void
+e_to_sys(num)
+	int num;
+{
+	/* Temporary failures override hard errors. */
+	if (eval == EX_TEMPFAIL)
+		return;
+
+	switch(num) {		/* Hopefully temporary errors. */
+#ifdef EAGAIN
+	case EAGAIN:		/* Resource temporarily unavailable */
+#endif
+#ifdef EDQUOT
+	case EDQUOT:		/* Disc quota exceeded */
+#endif
+#ifdef EBUSY
+	case EBUSY:		/* Device busy */
+#endif
+#ifdef EPROCLIM
+	case EPROCLIM:		/* Too many processes */
+#endif
+#ifdef EUSERS
+	case EUSERS:		/* Too many users */
+#endif
+#ifdef ECONNABORTED
+	case ECONNABORTED:	/* Software caused connection abort */
+#endif
+#ifdef ECONNREFUSED
+	case ECONNREFUSED:	/* Connection refused */
+#endif
+#ifdef ECONNRESET
+	case ECONNRESET:	/* Connection reset by peer */
+#endif
+#ifdef EDEADLK
+	case EDEADLK:		/* Resource deadlock avoided */
+#endif
+#ifdef EFBIG
+	case EFBIG:		/* File too large */
+#endif
+#ifdef EHOSTDOWN
+	case EHOSTDOWN:		/* Host is down */
+#endif
+#ifdef EHOSTUNREACH
+	case EHOSTUNREACH:	/* No route to host */
+#endif
+#ifdef EMFILE
+	case EMFILE:		/* Too many open files */
+#endif
+#ifdef ENETDOWN
+	case ENETDOWN:		/* Network is down */
+#endif
+#ifdef ENETRESET
+	case ENETRESET:		/* Network dropped connection on reset */
+#endif
+#ifdef ENETUNREACH
+	case ENETUNREACH:	/* Network is unreachable */
+#endif
+#ifdef ENFILE
+	case ENFILE:		/* Too many open files in system */
+#endif
+#ifdef ENOBUFS
+	case ENOBUFS:		/* No buffer space available */
+#endif
+#ifdef ENOMEM
+	case ENOMEM:		/* Cannot allocate memory */
+#endif
+#ifdef ENOSPC
+	case ENOSPC:		/* No space left on device */
+#endif
+#ifdef EROFS
+	case EROFS:		/* Read-only file system */
+#endif
+#ifdef ESTALE
+	case ESTALE:		/* Stale NFS file handle */
+#endif
+#ifdef ETIMEDOUT
+	case ETIMEDOUT:		/* Connection timed out */
+#endif
+#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN && EWOULDBLOCK != EDEADLK
+	case EWOULDBLOCK:	/* Operation would block. */
+#endif
+		eval = EX_TEMPFAIL;
+		break;
+	default:
+		eval = EX_UNAVAILABLE;
+		break;
+	}
+}
+
+#if !defined(BSD4_4) && !defined(__osf__)
+
+char *
+strerror(eno)
+	int eno;
+{
+	extern int sys_nerr;
+	extern char *sys_errlist[];
+	static char ebuf[60];
+
+	if (eno >= 0 && eno <= sys_nerr)
+		return sys_errlist[eno];
+	(void) sprintf(ebuf, "Error %d", eno);
+	return ebuf;
+}
+
+#endif /* !defined(BSD4_4) && !defined(__osf__) */
+
+#if !HASSNPRINTF
+
+# if __STDC__
+snprintf(char *buf, size_t bufsiz, const char *fmt, ...)
+# else
+snprintf(buf, bufsiz, fmt, va_alist)
+	char *buf;
+	size_t bufsiz;
+	const char *fmt;
+	va_dcl
+# endif
+{
+	va_list ap;
+
+# if __STDC__
+	va_start(ap, fmt);
+# else
+	va_start(ap);
+# endif
+	vsprintf(buf, fmt, ap);
+	va_end(ap);
+}
+
+#endif /* !HASSNPRINTF */
+
+#ifdef ultrix
+
+/*
+ * Copyright (c) 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)mktemp.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <ctype.h>
+
+static int _gettemp();
+
+mkstemp(path)
+	char *path;
+{
+	int fd;
+
+	return (_gettemp(path, &fd) ? fd : -1);
+}
+
+/*
+char *
+mktemp(path)
+	char *path;
+{
+	return(_gettemp(path, (int *)NULL) ? path : (char *)NULL);
+}
+*/
+
+static
+_gettemp(path, doopen)
+	char *path;
+	register int *doopen;
+{
+	extern int errno;
+	register char *start, *trv;
+	struct stat sbuf;
+	u_int pid;
+
+	pid = getpid();
+	for (trv = path; *trv; ++trv);		/* extra X's get set to 0's */
+	while (*--trv == 'X') {
+		*trv = (pid % 10) + '0';
+		pid /= 10;
+	}
+
+	/*
+	 * check the target directory; if you have six X's and it
+	 * doesn't exist this runs for a *very* long time.
+	 */
+	for (start = trv + 1;; --trv) {
+		if (trv <= path)
+			break;
+		if (*trv == '/') {
+			*trv = '\0';
+			if (stat(path, &sbuf) < 0)
+				return(0);
+			if (!S_ISDIR(sbuf.st_mode)) {
+				errno = ENOTDIR;
+				return(0);
+			}
+			*trv = '/';
+			break;
+		}
+	}
+
+	for (;;) {
+		if (doopen) {
+			if ((*doopen =
+			    open(path, O_CREAT|O_EXCL|O_RDWR, 0600)) >= 0)
+				return(1);
+			if (errno != EEXIST)
+				return(0);
+		}
+		else if (stat(path, &sbuf) < 0)
+			return(errno == ENOENT ? 1 : 0);
+
+		/* tricky little algorithm for backward compatibility */
+		for (trv = start;;) {
+			if (!*trv)
+				return(0);
+			if (*trv == 'z')
+				*trv++ = 'a';
+			else {
+				if (isdigit(*trv))
+					*trv = 'a';
+				else
+					++*trv;
+				break;
+			}
+		}
+	}
+	/*NOTREACHED*/
+}
+
+#endif /* ultrix */
diff --git a/mail.local/pathnames.h b/mail.local/pathnames.h
new file mode 100644
index 0000000..8e43925
--- /dev/null
+++ b/mail.local/pathnames.h
@@ -0,0 +1,37 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)pathnames.h	8.1 (Berkeley) 6/4/93
+ */
+#include <paths.h>
+
+#define _PATH_LOCTMP	"/tmp/local.XXXXXX"
diff --git a/mailstats/Makefile b/mailstats/Makefile
new file mode 100644
index 0000000..d1a3996
--- /dev/null
+++ b/mailstats/Makefile
@@ -0,0 +1,8 @@
+#	@(#)Makefile	8.2 (Berkeley) 9/21/96
+
+PROG=	mailstats
+MAN8=	mailstats.0
+CFLAGS+=-I${.CURDIR}/../src
+
+.include "../../Makefile.inc"
+.include <bsd.prog.mk>
diff --git a/mailstats/Makefile.dist b/mailstats/Makefile.dist
new file mode 100644
index 0000000..5bf0f20
--- /dev/null
+++ b/mailstats/Makefile.dist
@@ -0,0 +1,78 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.dist	8.2 (Berkeley) 9/21/96
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# location of sendmail source directory
+SRCDIR=	../src
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I${SRCDIR} -I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=
+
+# location of mailstats binary (usually /usr/sbin or /usr/etc)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${ENVDEF}
+
+OBJS=	mailstats.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq
+BINOWN=	bin
+BINGRP=	bin
+BINMODE=555
+
+ALL=	mailstats mailstats.0
+
+all: ${ALL}
+
+mailstats: ${BEFORE} ${OBJS}
+	${CC} -o mailstats ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+mailstats.0: mailstats.8
+	${NROFF} ${MANDOC} mailstats.8 > mailstats.0
+
+install: install-mailstats install-docs
+
+install-mailstats: mailstats
+	install -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} mailstats ${BINDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: mailstats.0
+
+clean:
+	rm -f ${OBJS} mailstats mailstats.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: ${SRCDIR}/sendmail.h ${SRCDIR}/mailstats.h ${SRCDIR}/conf.h
diff --git a/mailstats/mailstats.0 b/mailstats/mailstats.0
new file mode 100644
index 0000000..b6fbcf2
--- /dev/null
+++ b/mailstats/mailstats.0
@@ -0,0 +1,47 @@
+MAILSTATS(1)                 BSD Reference Manual                 MAILSTATS(1)
+
+NNAAMMEE
+     mmaaiillssttaattss - display mail statistics
+
+SSYYNNOOPPSSIISS
+     mmaaiillssttaattss [--oo] [--CC _c_f_f_i_l_e] [--ff _s_t_f_i_l_e]
+
+DDEESSCCRRIIPPTTIIOONN
+     The mmaaiillssttaattss utility displays the current mail statistics.
+
+     First, the time at which statistics started being kept is displayed, in
+     the format specified by ctime(3).  Then, the statistics for each mailer
+     are displayed on a single line, each with the following whitespace sepa-
+     rated fields:
+
+           MM           The mailer number.
+           mmssggssffrr      Number of messages from the mailer.
+           bbyytteess__ffrroomm  Kbytes from the mailer.
+           mmssggssttoo      Number of messages to the mailer.
+           bbyytteess__ttoo    Kbytes to the mailer.
+           MMaaiilleerr      The name of the mailer.
+
+     After this display, a line totaling the values for all of the mailers is
+     displayed, separated from the previous information by a line containing
+     only equals (``='') characters.
+
+     The options are as follows:
+
+     --CC      Read the specified file instead of the default sseennddmmaaiill ``cf''
+             file.
+
+     --ff      Read the specified statistics file instead of the statistics file
+             specified in the sseennddmmaaiill ``cf'' file.
+
+     --oo      Don't display the name of the mailer in the output.
+
+     The mmaaiillssttaattss utility exits 0 on success, and >0 if an error occurs.
+
+FFIILLEESS
+     /etc/sendmail.cf        The default sseennddmmaaiill ``cf'' file.
+     /var/log/sendmail.st    The default sseennddmmaaiill statistics file.
+
+SSEEEE AALLSSOO
+     mailq(1),  sendmail(8)
+
+3rd Berkeley Distribution       April 25, 1996                               1
diff --git a/mailstats/mailstats.8 b/mailstats/mailstats.8
new file mode 100644
index 0000000..3fe87c9
--- /dev/null
+++ b/mailstats/mailstats.8
@@ -0,0 +1,80 @@
+.\"	@(#)mailstats.8	8.1 (Berkeley) 9/21/96
+.Dd April 25, 1996
+.Dt MAILSTATS 1
+.Os BSD 3
+.Sh NAME
+.Nm mailstats
+.Nd display mail statistics
+.Sh SYNOPSIS
+.Nm mailstats
+.Op Fl o
+.Op Fl C Ar cffile
+.Op Fl f Ar stfile
+.Sh DESCRIPTION
+The
+.Nm mailstats
+utility displays the current mail statistics.
+.Pp
+First, the time at which statistics started being kept is displayed,
+in the format specified by
+.Xr ctime 3 .
+Then,
+the statistics for each mailer are displayed on a single line,
+each with the following whitespace separated fields:
+.Pp
+.Bl -tag -width 10n -offset indent -compact
+.It Sy M
+The mailer number.
+.It Sy msgsfr
+Number of messages from the mailer.
+.It Sy bytes_from
+Kbytes from the mailer.
+.It Sy msgsto
+Number of messages to the mailer.
+.It Sy bytes_to
+Kbytes to the mailer.
+.It Sy Mailer
+The name of the mailer.
+.El
+.Pp
+After this display, a line totaling the values for all of the mailers
+is displayed,
+separated from the previous information by a line containing only equals
+.Pq Dq \&=
+characters.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl C
+Read the specified file instead of the default
+.Nm sendmail
+.Dq cf
+file.
+.It Fl f
+Read the specified statistics file instead of the statistics file
+specified in the
+.Nm sendmail
+.Dq cf
+file.
+.It Fl o
+Don't display the name of the mailer in the output.
+.El
+.Pp
+The
+.Nm mailstats
+utility exits 0 on success, and >0 if an error occurs.
+.Sh FILES
+.Bl -tag -width /var/log/sendmail.stXX -compact
+.It Pa /etc/sendmail.cf
+The default
+.Nm sendmail
+.Dq cf
+file.
+.It Pa /var/log/sendmail.st
+The default
+.Nm sendmail
+statistics file.
+.El
+.Sh SEE ALSO
+.Xr mailq 1 ,
+.Xr sendmail 8
diff --git a/mailstats/mailstats.c b/mailstats/mailstats.c
new file mode 100644
index 0000000..ffbb2bb
--- /dev/null
+++ b/mailstats/mailstats.c
@@ -0,0 +1,247 @@
+/*
+ * Copyright (c) 1983 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)mailstats.c	8.10 (Berkeley) 5/30/97";
+#endif /* not lint */
+
+#define NOT_SENDMAIL
+#include <sendmail.h>
+#include <mailstats.h>
+#include <pathnames.h>
+
+#define MNAMELEN	20	/* max length of mailer name */
+
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	extern char *optarg;
+	extern int optind;
+	struct statistics stat;
+	register int i;
+	int mno;
+	int ch, fd;
+	char *sfile;
+	char *cfile;
+	FILE *cfp;
+	bool mnames;
+	long frmsgs = 0, frbytes = 0, tomsgs = 0, tobytes = 0;
+	char mtable[MAXMAILERS][MNAMELEN+1];
+	char sfilebuf[MAXLINE];
+	char buf[MAXLINE];
+	extern char *ctime();
+
+	cfile = _PATH_SENDMAILCF;
+	sfile = NULL;
+	mnames = TRUE;
+	while ((ch = getopt(argc, argv, "C:f:o")) != EOF)
+	{
+		switch (ch)
+		{
+		  case 'C':
+			cfile = optarg;
+			break;
+
+		  case 'f':
+			sfile = optarg;
+			break;
+
+		  case 'o':
+			mnames = FALSE;
+			break;
+
+		  case '?':
+		  default:
+  usage:
+			fputs("usage: mailstats [-C cffile] [-f stfile] -o\n",
+				stderr);
+			exit(EX_USAGE);
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (argc != 0)
+		goto usage;
+
+	if ((cfp = fopen(cfile, "r")) == NULL)
+	{
+		fprintf(stderr, "mailstats: ");
+		perror(cfile);
+		exit(EX_NOINPUT);
+	}
+
+	mno = 0;
+	(void) strcpy(mtable[mno++], "prog");
+	(void) strcpy(mtable[mno++], "*file*");
+	(void) strcpy(mtable[mno++], "*include*");
+
+	while (fgets(buf, sizeof(buf), cfp) != NULL)
+	{
+		register char *b;
+		char *s;
+		register char *m;
+
+		b = buf;
+		switch (*b++)
+		{
+		  case 'M':		/* mailer definition */
+			break;
+
+		  case 'O':		/* option -- see if .st file */
+			if (strncasecmp(b, " StatusFile", 11) == 0 &&
+			    !isalnum(b[11]))
+			{
+				/* new form -- find value */
+				b = strchr(b, '=');
+				if (b == NULL)
+					continue;
+				while (isspace(*++b))
+					continue;
+			}
+			else if (*b++ != 'S')
+			{
+				/* something else boring */
+				continue;
+			}
+
+			/* this is the S or StatusFile option -- save it */
+			if (strlen(b) >= sizeof sfilebuf)
+			{
+				fprintf(stderr,
+					"StatusFile filename too long: %.30s...\n",
+					s);
+				exit(EX_CONFIG);
+			}
+			strcpy(sfilebuf, b);
+			b = strchr(sfilebuf, '#');
+			if (b == NULL)
+				b = strchr(sfilebuf, '\n');
+			if (b == NULL)
+				b = &sfilebuf[strlen(sfilebuf)];
+			while (isspace(*--b))
+				continue;
+			*++b = '\0';
+			if (sfile == NULL)
+				sfile = sfilebuf;
+
+		  default:
+			continue;
+		}
+
+		if (mno >= MAXMAILERS)
+		{
+			fprintf(stderr,
+				"Too many mailers defined, %d max.\n",
+				MAXMAILERS);
+			exit(EX_SOFTWARE);
+		}
+		m = mtable[mno];
+		s = m + MNAMELEN;		/* is [MNAMELEN+1] */
+		while (*b != ',' && !isspace(*b) && *b != '\0' && m < s)
+			*m++ = *b++;
+		*m = '\0';
+		for (i = 0; i < mno; i++)
+		{
+			if (strcmp(mtable[i], mtable[mno]) == 0)
+				break;
+		}
+		if (i == mno)
+			mno++;
+	}
+	(void) fclose(cfp);
+	for (; mno < MAXMAILERS; mno++)
+		mtable[mno][0]='\0';
+
+	if (sfile == NULL)
+	{
+		fprintf(stderr, "mailstats: no statistics file located\n");
+		exit (EX_OSFILE);
+	}
+
+	if ((fd = open(sfile, O_RDONLY)) < 0 ||
+	    (i = read(fd, &stat, sizeof stat)) < 0)
+	{
+		fputs("mailstats: ", stderr);
+		perror(sfile);
+		exit(EX_NOINPUT);
+	}
+	if (i == 0)
+	{
+		sleep(1);
+		i = read(fd, &stat, sizeof stat);
+		if (i == 0)
+		{
+			bzero((ARBPTR_T) &stat, sizeof stat);
+			(void) time(&stat.stat_itime);
+		}
+	}
+	else if (i != sizeof stat || stat.stat_size != sizeof(stat))
+	{
+		fputs("mailstats: file size changed.\n", stderr);
+		exit(EX_OSERR);
+	}
+
+	printf("Statistics from %s", ctime(&stat.stat_itime));
+	printf(" M msgsfr bytes_from  msgsto   bytes_to%s\n",
+		mnames ? "  Mailer" : "");
+	for (i = 0; i < MAXMAILERS; i++)
+	{
+		if (stat.stat_nf[i] || stat.stat_nt[i])
+		{
+			printf("%2d %6ld %10ldK %6ld %10ldK", i,
+			    stat.stat_nf[i], stat.stat_bf[i],
+			    stat.stat_nt[i], stat.stat_bt[i]);
+			if (mnames)
+				printf("  %s", mtable[i]);
+			printf("\n");
+			frmsgs += stat.stat_nf[i];
+			frbytes += stat.stat_bf[i];
+			tomsgs += stat.stat_nt[i];
+			tobytes += stat.stat_bt[i];
+		}
+	}
+	printf("========================================\n");
+	printf(" T %6ld %10ldK %6ld %10ldK\n",
+		frmsgs, frbytes, tomsgs, tobytes);
+	exit(EX_OK);
+}
diff --git a/makemap/Makefile b/makemap/Makefile
new file mode 100644
index 0000000..e64e093
--- /dev/null
+++ b/makemap/Makefile
@@ -0,0 +1,13 @@
+#	@(#)Makefile	8.4 (Berkeley) 6/10/97
+
+PROG=	makemap
+MAN8=	makemap.0
+CFLAGS+=-I${.CURDIR}/../src -DNEWDB -DNOT_SENDMAIL
+
+SRCS=	makemap.c safefile.c
+
+safefile.c: ${.CURDIR}/../src/safefile.c
+	ln -s ${.CURDIR}/../src/safefile.c
+
+.include "../../Makefile.inc"
+.include <bsd.prog.mk>
diff --git a/makemap/Makefile.dist b/makemap/Makefile.dist
new file mode 100644
index 0000000..ad1ca5d
--- /dev/null
+++ b/makemap/Makefile.dist
@@ -0,0 +1,90 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.dist	8.7 (Berkeley) 6/10/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# location of sendmail source directory
+SRCDIR=	../src
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+# The really old (V7) DBM library is no longer supported.
+#
+DBMDEF=	-DNDBM -DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF= -DNOT_SENDMAIL
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I${SRCDIR} -I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-ldb -ldbm
+
+# location of makemap binary (usually /usr/sbin or /usr/etc)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	makemap.o safefile.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq
+BINOWN=	bin
+BINGRP=	bin
+BINMODE=555
+
+ALL=	makemap makemap.0
+
+all: ${ALL}
+
+makemap: ${BEFORE} ${OBJS}
+	${CC} -o makemap ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+safefile.c: ${SRCDIR}/safefile.c
+	ln -s ${SRCDIR}/safefile.c safefile.c
+
+#NROFF= nroff -h
+NROFF=  groff -Tascii
+MANDOC= -mandoc
+
+makemap.0: makemap.8
+	${NROFF} ${MANDOC} makemap.8 > makemap.0
+
+INSTALL=install
+
+install: install-makemap install-docs
+
+install-makemap: makemap
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} makemap ${BINDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: makemap.0
+
+clean:
+	rm -f ${OBJS} makemap makemap.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: ${SRCDIR}/conf.h
diff --git a/makemap/makemap.0 b/makemap/makemap.0
new file mode 100644
index 0000000..73a3862
--- /dev/null
+++ b/makemap/makemap.0
@@ -0,0 +1,58 @@
+MAKEMAP(8)                BSD System Manager's Manual               MAKEMAP(8)
+
+NNAAMMEE
+     mmaakkeemmaapp - create database maps for sendmail
+
+SSYYNNOOPPSSIISS
+     mmaakkeemmaapp [--NN] [--dd] [--ff] [--oo] [--rr] [--vv] _m_a_p_t_y_p_e _m_a_p_n_a_m_e
+
+DDEESSCCRRIIPPTTIIOONN
+     mmaakkeemmaapp creates the database maps used by the keyed map lookups in
+     sendmail(8).  It reads input from the standard input and outputs them to
+     the indicated _m_a_p_n_a_m_e.
+
+     Depending on how it is compiled, mmaakkeemmaapp handles up to three different
+     database formats, selected using the _m_a_p_t_y_p_e parameter.  They may be
+
+     dbm         DBM format maps.  This requires the ndbm(3) library.
+
+     btree       B-Tree format maps.  This requires the new Berkeley db(3) li-
+                 brary.
+
+     hash        Hash format maps.  This also requires the db(3) library.
+
+     In all cases, mmaakkeemmaapp reads lines from the standard input consisting of
+     two words separated by white space.  The first is the database key, the
+     second is the value.  The value may contain ``%_n'' strings to indicated
+     parameter substitution.  Literal percents should be doubled (``%%'').
+     Blank lines and lines beginning with ``#'' are ignored.
+
+   FFllaaggss
+
+     --NN          Include the null byte that terminates strings in the map.
+                 This must match the -N flag in the sendmail.cf ``K'' line.
+
+     --dd          Allow duplicate keys in the map.  This is only allowed on B-
+                 Tree format maps.  If two identical keys are read, they will
+                 both be inserted into the map.
+
+     --ff          Normally all upper case letters in the key are folded to low-
+                 er case.  This flag disables that behaviour.  This is intend-
+                 ed to mesh with the -f flag in the KK line in sendmail.cf.
+                 The value is never case folded.
+
+     --oo          Append to an old file.  This allows you to augment an exist-
+                 ing file.
+
+     --rr          Allow replacement of existing keys.  Normally mmaakkeemmaapp com-
+                 plains if you repeat a key, and does not do the insert.
+
+     --vv          Verbosely print what it is doing.
+
+SSEEEE AALLSSOO
+     sendmail(8)
+
+HHIISSTTOORRYY
+     The mmaakkeemmaapp command appeared in 4.4BSD.
+
+4.4BSD                         November 16, 1992                             1
diff --git a/makemap/makemap.8 b/makemap/makemap.8
new file mode 100644
index 0000000..3c1f6fa
--- /dev/null
+++ b/makemap/makemap.8
@@ -0,0 +1,134 @@
+.\" Copyright (c) 1988, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)makemap.8	8.4 (Berkeley) 7/23/97
+.\"
+.Dd November 16, 1992
+.Dt MAKEMAP 8
+.Os BSD 4.4
+.Sh NAME
+.Nm makemap
+.Nd create database maps for sendmail
+.Sh SYNOPSIS
+.Nm
+.Op Fl N
+.Op Fl d
+.Op Fl f
+.Op Fl o
+.Op Fl r
+.Op Fl v
+.Ar maptype
+.Ar mapname
+.Sh DESCRIPTION
+.Nm
+creates the database maps used by the keyed map lookups in
+.Xr sendmail 8 .
+It reads input from the standard input
+and outputs them to the indicated
+.Ar mapname .
+.Pp
+Depending on how it is compiled,
+.Nm
+handles up to three different database formats,
+selected using the
+.Ar maptype
+parameter.
+They may be
+.Bl -tag -width Fl
+.It Li dbm
+DBM format maps.
+This requires the
+.Xr ndbm 3
+library.
+.It Li btree
+B-Tree format maps.
+This requires the new Berkeley
+.Xr db 3
+library.
+.It Li hash
+Hash format maps.
+This also requires the
+.Xr db 3
+library.
+.El
+.Pp
+In all cases,
+.Nm
+reads lines from the standard input consisting of two
+words separated by white space.
+The first is the database key,
+the second is the value.
+The value may contain
+``%\fIn\fP''
+strings to indicated parameter substitution.
+Literal percents should be doubled
+(``%%'').
+Blank lines and lines beginning with ``#'' are ignored.
+.Ss Flags
+.Bl -tag -width Fl
+.It Fl N
+Include the null byte that terminates strings
+in the map.
+This must match the \-N flag in the sendmail.cf
+``K'' line.
+.It Fl d
+Allow duplicate keys in the map.
+This is only allowed on B-Tree format maps.
+If two identical keys are read,
+they will both be inserted into the map.
+.It Fl f
+Normally all upper case letters in the key
+are folded to lower case.
+This flag disables that behaviour.
+This is intended to mesh with the
+\-f flag in the
+\fBK\fP
+line in sendmail.cf.
+The value is never case folded.
+.It Fl o
+Append to an old file.
+This allows you to augment an existing file.
+.It Fl r
+Allow replacement of existing keys.
+Normally
+.Nm
+complains if you repeat a key,
+and does not do the insert.
+.It Fl v
+Verbosely print what it is doing.
+.El
+.Sh SEE ALSO
+.Xr sendmail 8
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.4 .
diff --git a/makemap/makemap.c b/makemap/makemap.c
new file mode 100644
index 0000000..9d088c6
--- /dev/null
+++ b/makemap/makemap.c
@@ -0,0 +1,781 @@
+/*
+ * Copyright (c) 1992 Eric P. Allman.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)makemap.c	8.38 (Berkeley) 9/23/97";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/errno.h>
+#ifndef ISC_UNIX
+# include <sys/file.h>
+#endif
+#include "sendmail.h"
+
+#ifdef NDBM
+#include <ndbm.h>
+#endif
+
+#ifdef NEWDB
+#include <db.h>
+#endif
+
+enum type { T_DBM, T_BTREE, T_HASH, T_ERR, T_UNKNOWN };
+
+union dbent
+{
+#ifdef NDBM
+	datum	dbm;
+#endif
+#ifdef NEWDB
+	DBT	db;
+#endif
+	struct
+	{
+		char	*data;
+		size_t	size;
+	} xx;
+};
+
+uid_t	RealUid;
+gid_t	RealGid;
+char	*RealUserName;
+uid_t	RunAsUid;
+uid_t	RunAsGid;
+char	*RunAsUserName;
+int	Verbose = 2;
+bool	DontInitGroups = TRUE;
+bool	UnsafeGroupWrites = FALSE;
+u_char	tTdvect[100];
+
+#define BUFSIZE		1024
+
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	char *progname;
+	bool inclnull = FALSE;
+	bool notrunc = FALSE;
+	bool allowreplace = FALSE;
+	bool allowdups = FALSE;
+	bool verbose = FALSE;
+	bool foldcase = TRUE;
+	bool ignoresafeties = FALSE;
+	int exitstat;
+	int opt;
+	char *typename;
+	char *mapname;
+	char *ext;
+	int lineno;
+	int st;
+	int mode;
+	int putflags;
+	long dbcachesize = 1024 * 1024;
+	enum type type;
+	int fd;
+	union
+	{
+#ifdef NDBM
+		DBM	*dbm;
+#endif
+#ifdef NEWDB
+		DB	*db;
+#endif
+		void	*dbx;
+	} dbp;
+	union dbent key, val;
+#ifdef NEWDB
+	BTREEINFO bti;
+	HASHINFO hinfo;
+#endif
+	char ibuf[BUFSIZE];
+	char fbuf[MAXNAME];
+	char dbuf[MAXNAME];
+	char pbuf[MAXNAME];
+	static char rnamebuf[MAXNAME];	/* holds RealUserName */
+	struct passwd *pw;
+	int sff = SFF_ROOTOK|SFF_REGONLY|SFF_NOLINK|SFF_NOWLINK;
+	struct stat std, stp;
+	extern char *optarg;
+	extern int optind;
+	extern bool lockfile();
+
+	progname = argv[0];
+
+	RunAsUid = RealUid = getuid();
+	RunAsGid = RealGid = getgid();
+	pw = getpwuid(RealUid);
+	if (pw != NULL)
+	{
+		if (strlen(pw->pw_name) > MAXNAME - 1)
+			pw->pw_name[MAXNAME] = 0;
+		sprintf(rnamebuf, "%s", pw->pw_name);
+	}
+	else
+		sprintf(rnamebuf, "Unknown UID %d", RealUid);
+	RunAsUserName = RealUserName = rnamebuf;
+
+#if _FFR_NEW_MAKEMAP_FLAGS
+#define OPTIONS		"Nc:dforsv"
+#else
+#define OPTIONS		"Ndforv"
+#endif
+	while ((opt = getopt(argc, argv, OPTIONS)) != EOF)
+	{
+		switch (opt)
+		{
+		  case 'N':
+			inclnull = TRUE;
+			break;
+
+#if _FFR_NEW_MAKEMAP_FLAGS
+		  case 'c':
+			dbcachesize = atol(optarg);
+			break;
+#endif
+
+		  case 'd':
+			allowdups = TRUE;
+			break;
+
+		  case 'f':
+			foldcase = FALSE;
+			break;
+
+		  case 'o':
+			notrunc = TRUE;
+			break;
+
+		  case 'r':
+			allowreplace = TRUE;
+			break;
+
+#if _FFR_NEW_MAKEMAP_FLAGS
+		  case 's':
+			ignoresafeties = TRUE;
+			break;
+#endif
+
+		  case 'v':
+			verbose = TRUE;
+			break;
+
+		  default:
+			type = T_ERR;
+			break;
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+	if (argc != 2)
+		type = T_ERR;
+	else
+	{
+		typename = argv[0];
+		mapname = argv[1];
+		ext = NULL;
+
+		if (strcmp(typename, "dbm") == 0)
+		{
+			type = T_DBM;
+		}
+		else if (strcmp(typename, "btree") == 0)
+		{
+			type = T_BTREE;
+			ext = ".db";
+		}
+		else if (strcmp(typename, "hash") == 0)
+		{
+			type = T_HASH;
+			ext = ".db";
+		}
+		else
+			type = T_UNKNOWN;
+	}
+
+	switch (type)
+	{
+	  case T_ERR:
+#if _FFR_NEW_MAKEMAP_FLAGS
+		fprintf(stderr,
+			"Usage: %s [-N] [-c cachesize] [-d] [-f] [-o] [-r] [-s] [-v] type mapname\n",
+			progname);
+#else
+		fprintf(stderr, "Usage: %s [-N] [-d] [-f] [-o] [-r] [-v] type mapname\n", progname);
+#endif
+		exit(EX_USAGE);
+
+	  case T_UNKNOWN:
+		fprintf(stderr, "%s: Unknown database type %s\n",
+			progname, typename);
+		exit(EX_USAGE);
+
+#ifndef NDBM
+	  case T_DBM:
+#endif
+#ifndef NEWDB
+	  case T_BTREE:
+	  case T_HASH:
+#endif
+		fprintf(stderr, "%s: Type %s not supported in this version\n",
+			progname, typename);
+		exit(EX_UNAVAILABLE);
+
+#ifdef NEWDB
+	  case T_BTREE:
+		bzero(&bti, sizeof bti);
+		if (allowdups)
+			bti.flags |= R_DUP;
+		if (allowdups || allowreplace)
+			putflags = 0;
+		else
+			putflags = R_NOOVERWRITE;
+		break;
+
+	  case T_HASH:
+		bzero(&hinfo, sizeof hinfo);
+		if (allowreplace)
+			putflags = 0;
+		else
+			putflags = R_NOOVERWRITE;
+		break;
+#endif
+#ifdef NDBM
+	  case T_DBM:
+		if (allowdups)
+		{
+			fprintf(stderr, "%s: Type %s does not support -d (allow dups)\n",
+				progname, typename);
+			exit(EX_UNAVAILABLE);
+		}
+		if (allowreplace)
+			putflags = DBM_REPLACE;
+		else
+			putflags = DBM_INSERT;
+		break;
+#endif
+	}
+
+	/*
+	**  Adjust file names.
+	*/
+
+	if (ext != NULL)
+	{
+		int el, fl;
+
+		el = strlen(ext);
+		fl = strlen(mapname);
+		if (el + fl + 1 >= sizeof fbuf)
+		{
+			fprintf(stderr, "%s: file name too long", mapname);
+			exit(EX_USAGE);
+		}
+		if (fl < el || strcmp(&mapname[fl - el], ext) != 0)
+		{
+			strcpy(fbuf, mapname);
+			strcat(fbuf, ext);
+			mapname = fbuf;
+		}
+	}
+
+	if (!notrunc)
+		sff |= SFF_CREAT;
+	switch (type)
+	{
+#ifdef NEWDB
+	  case T_BTREE:
+	  case T_HASH:
+		if (strlen(mapname) >= sizeof dbuf)
+		{
+			fprintf(stderr,
+				"%s: map name too long\n", mapname);
+			exit(EX_USAGE);
+		}
+		strcpy(dbuf, mapname);
+		if (!ignoresafeties &&
+		    (st = safefile(dbuf, RealUid, RealGid, RealUserName,
+				   sff, S_IWUSR, &std)) != 0)
+		{
+			fprintf(stderr,
+				"%s: could not create: %s\n",
+				dbuf, errstring(st));
+			exit(EX_CANTCREAT);
+		}
+		break;
+#endif
+#ifdef NDBM
+	  case T_DBM:
+		if (strlen(mapname) + 5 > sizeof dbuf)
+		{
+			fprintf(stderr,
+				"%s: map name too long\n", mapname);
+			exit(EX_USAGE);
+		}
+		sprintf(dbuf, "%s.dir", mapname);
+		if ((st = safefile(dbuf, RealUid, RealGid, RealUserName,
+			   sff, S_IWUSR, &std)) != 0 && !ignoresafeties)
+		{
+			fprintf(stderr,
+				"%s: could not create: %s\n",
+				dbuf, errstring(st));
+			exit(EX_CANTCREAT);
+		}
+		sprintf(pbuf, "%s.pag", mapname);
+		if ((st = safefile(pbuf, RealUid, RealGid, RealUserName,
+			   sff, S_IWUSR, &stp)) != 0 && !ignoresafeties)
+		{
+			fprintf(stderr,
+				"%s: could not create: %s\n",
+				pbuf, errstring(st));
+			exit(EX_CANTCREAT);
+		}
+		break;
+#endif
+	  default:
+		fprintf(stderr,
+			"%s: internal error: type %d\n",
+			progname,
+			type);
+		exit(EX_SOFTWARE);
+	}
+
+	/*
+	**  Create the database.
+	*/
+
+	mode = O_RDWR;
+	if (!notrunc)
+		mode |= O_CREAT|O_TRUNC;
+#if O_EXLOCK
+	mode |= O_EXLOCK;
+#else
+	/* pre-lock the database */
+	if (ignoresafeties)
+		fd = dfopen(dbuf, mode & ~O_TRUNC, 0644, sff);
+	else
+		fd = safeopen(dbuf, mode & ~O_TRUNC, 0644, sff);
+	if (fd < 0)
+	{
+		fprintf(stderr, "%s: cannot create type %s map %s\n",
+			progname, typename, mapname);
+		exit(EX_CANTCREAT);
+	}
+#endif
+	switch (type)
+	{
+#ifdef NDBM
+	  case T_DBM:
+		dbp.dbm = dbm_open(mapname, mode, 0644);
+		if (dbp.dbm != NULL &&
+		    dbm_dirfno(dbp.dbm) == dbm_pagfno(dbp.dbm))
+		{
+			fprintf(stderr, "dbm map %s: cannot run with GDBM\n",
+				mapname);
+			dbm_close(dbp.dbm);
+			exit(EX_CONFIG);
+		}
+		if (!ignoresafeties && dbp.dbm != NULL &&
+		    (filechanged(dbuf, dbm_dirfno(dbp.dbm), &std, sff) ||
+		     filechanged(pbuf, dbm_pagfno(dbp.dbm), &stp, sff)))
+		{
+			fprintf(stderr,
+				"dbm map %s: file changed after open\n",
+				mapname);
+			dbm_close(dbp.dbm);
+			exit(EX_CANTCREAT);
+		}
+		break;
+#endif
+
+#ifdef NEWDB
+	  case T_HASH:
+		/* tweak some parameters for performance */
+		hinfo.nelem = 4096;
+		hinfo.cachesize = dbcachesize;
+		
+		dbp.db = dbopen(mapname, mode, 0644, DB_HASH, &hinfo);
+		if (dbp.db != NULL)
+		{
+			if (!ignoresafeties &&
+			    filechanged(dbuf, dbp.db->fd(dbp.db), &std, sff))
+			{
+				fprintf(stderr,
+					"db map %s: file changed after open\n",
+					mapname);
+				dbp.db->close(dbp.db);
+				exit(EX_CANTCREAT);
+			}
+# if OLD_NEWDB
+			(void) (*dbp.db->sync)(dbp.db);
+# else
+			(void) (*dbp.db->sync)(dbp.db, 0);
+# endif
+		}
+		break;
+
+	  case T_BTREE:
+		/* tweak some parameters for performance */
+		bti.cachesize = dbcachesize;
+
+		dbp.db = dbopen(mapname, mode, 0644, DB_BTREE, &bti);
+		if (dbp.db != NULL)
+		{
+			if (!ignoresafeties &&
+			    filechanged(dbuf, dbp.db->fd(dbp.db), &std, sff))
+			{
+				fprintf(stderr,
+					"db map %s: file changed after open\n",
+					mapname);
+				dbp.db->close(dbp.db);
+				exit(EX_CANTCREAT);
+			}
+# if OLD_NEWDB
+			(void) (*dbp.db->sync)(dbp.db);
+# else
+			(void) (*dbp.db->sync)(dbp.db, 0);
+# endif
+		}
+		break;
+#endif
+
+	  default:
+		fprintf(stderr, "%s: internal error: type %d\n",
+			progname, type);
+		exit(EX_SOFTWARE);
+	}
+
+	if (dbp.dbx == NULL)
+	{
+		fprintf(stderr, "%s: cannot open type %s map %s\n",
+			progname, typename, mapname);
+		exit(EX_CANTCREAT);
+	}
+
+	/*
+	**  Copy the data
+	*/
+
+	lineno = 0;
+	exitstat = EX_OK;
+	while (fgets(ibuf, sizeof ibuf, stdin) != NULL)
+	{
+		register char *p;
+
+		lineno++;
+
+		/*
+		**  Parse the line.
+		*/
+
+		p = strchr(ibuf, '\n');
+		if (p != NULL)
+			*p = '\0';
+		else if (!feof(stdin))
+		{
+			fprintf(stderr, "%s: %s: line %d: line too long (%d bytes max)\n",
+				progname, mapname, lineno, sizeof ibuf);
+			continue;
+		}
+			
+		if (ibuf[0] == '\0' || ibuf[0] == '#')
+			continue;
+		if (isspace(ibuf[0]))
+		{
+			fprintf(stderr, "%s: %s: line %d: syntax error (leading space)\n",
+				progname, mapname, lineno);
+			continue;
+		}
+		key.xx.data = ibuf;
+		for (p = ibuf; *p != '\0' && !isspace(*p); p++)
+		{
+			if (foldcase && isupper(*p))
+				*p = tolower(*p);
+		}
+		key.xx.size = p - key.xx.data;
+		if (inclnull)
+			key.xx.size++;
+		if (*p != '\0')
+			*p++ = '\0';
+		while (isspace(*p))
+			p++;
+		if (*p == '\0')
+		{
+			fprintf(stderr, "%s: %s: line %d: no RHS for LHS %s\n",
+				progname, mapname, lineno, key.xx.data);
+			continue;
+		}
+		val.xx.data = p;
+		val.xx.size = strlen(p);
+		if (inclnull)
+			val.xx.size++;
+
+		/*
+		**  Do the database insert.
+		*/
+
+		if (verbose)
+		{
+			printf("key=`%s', val=`%s'\n", key.xx.data, val.xx.data);
+		}
+
+		switch (type)
+		{
+#ifdef NDBM
+		  case T_DBM:
+			st = dbm_store(dbp.dbm, key.dbm, val.dbm, putflags);
+			break;
+#endif
+
+#ifdef NEWDB
+		  case T_BTREE:
+		  case T_HASH:
+			st = (*dbp.db->put)(dbp.db, &key.db, &val.db, putflags);
+			break;
+#endif
+		}
+
+		if (st < 0)
+		{
+			fprintf(stderr, "%s: %s: line %d: key %s: put error\n",
+				progname, mapname, lineno, key.xx.data);
+			perror(mapname);
+			exitstat = EX_IOERR;
+		}
+		else if (st > 0)
+		{
+			fprintf(stderr,
+				"%s: %s: line %d: key %s: duplicate key\n",
+				progname, mapname, lineno, key.xx.data);
+		}
+	}
+
+	/*
+	**  Now close the database.
+	*/
+
+	switch (type)
+	{
+#ifdef NDBM
+	  case T_DBM:
+		dbm_close(dbp.dbm);
+		break;
+#endif
+
+#ifdef NEWDB
+	  case T_HASH:
+	  case T_BTREE:
+		if ((*dbp.db->close)(dbp.db) < 0)
+		{
+			fprintf(stderr, "%s: %s: error on close\n",
+				progname, mapname);
+			perror(mapname);
+			exitstat = EX_IOERR;
+		}
+#endif
+	}
+
+#if !O_EXLOCK
+	/* release locks */
+	close(fd);
+#endif
+
+	exit (exitstat);
+}
+/*
+**  LOCKFILE -- lock a file using flock or (shudder) fcntl locking
+**
+**	Parameters:
+**		fd -- the file descriptor of the file.
+**		filename -- the file name (for error messages).
+**		ext -- the filename extension.
+**		type -- type of the lock.  Bits can be:
+**			LOCK_EX -- exclusive lock.
+**			LOCK_NB -- non-blocking.
+**
+**	Returns:
+**		TRUE if the lock was acquired.
+**		FALSE otherwise.
+*/
+
+bool
+lockfile(fd, filename, ext, type)
+	int fd;
+	char *filename;
+	char *ext;
+	int type;
+{
+# if !HASFLOCK
+	int action;
+	struct flock lfd;
+	extern int errno;
+
+	bzero(&lfd, sizeof lfd);
+	if (bitset(LOCK_UN, type))
+		lfd.l_type = F_UNLCK;
+	else if (bitset(LOCK_EX, type))
+		lfd.l_type = F_WRLCK;
+	else
+		lfd.l_type = F_RDLCK;
+	if (bitset(LOCK_NB, type))
+		action = F_SETLK;
+	else
+		action = F_SETLKW;
+
+	if (fcntl(fd, action, &lfd) >= 0)
+		return TRUE;
+
+	/*
+	**  On SunOS, if you are testing using -oQ/tmp/mqueue or
+	**  -oA/tmp/aliases or anything like that, and /tmp is mounted
+	**  as type "tmp" (that is, served from swap space), the
+	**  previous fcntl will fail with "Invalid argument" errors.
+	**  Since this is fairly common during testing, we will assume
+	**  that this indicates that the lock is successfully grabbed.
+	*/
+
+	if (errno == EINVAL)
+		return TRUE;
+
+# else	/* HASFLOCK */
+
+	if (flock(fd, type) >= 0)
+		return TRUE;
+
+# endif
+
+	return FALSE;
+}
+
+/*VARARGS2*/
+void
+#ifdef __STDC__
+message(const char *msg, ...)
+#else
+message(msg, va_alist)
+	const char *msg;
+	va_dcl
+#endif
+{
+	const char *m;
+	VA_LOCAL_DECL
+
+	m = msg;
+	if (isdigit(m[0]) && isdigit(m[1]) && isdigit(m[2]) && m[3] == ' ')
+		m += 4;
+	VA_START(msg);
+	vfprintf(stderr, m, ap);
+	VA_END;
+	fprintf(stderr, "\n");
+}
+
+/*VARARGS2*/
+void
+#ifdef __STDC__
+syserr(const char *msg, ...)
+#else
+syserr(msg, va_alist)
+	const char *msg;
+	va_dcl
+#endif
+{
+	const char *m;
+	VA_LOCAL_DECL
+
+	m = msg;
+	if (isdigit(m[0]) && isdigit(m[1]) && isdigit(m[2]) && m[3] == ' ')
+		m += 4;
+	VA_START(msg);
+	vfprintf(stderr, m, ap);
+	VA_END;
+	fprintf(stderr, "\n");
+}
+
+const char *
+errstring(err)
+	int err;
+{
+	static char errstr[64];
+#if !HASSTRERROR && !defined(ERRLIST_PREDEFINED)
+	extern char *sys_errlist[];
+	extern int sys_nerr;
+#endif
+
+	/* handle pseudo-errors internal to sendmail */
+	switch (err)
+	{
+	  case E_SM_OPENTIMEOUT:
+		return "Timeout on file open";
+
+	  case E_SM_NOSLINK:
+		return "Symbolic links not allowed";
+
+	  case E_SM_NOHLINK:
+		return "Hard links not allowed";
+
+	  case E_SM_REGONLY:
+		return "Regular files only";
+
+	  case E_SM_ISEXEC:
+		return "Executable files not allowed";
+
+	  case E_SM_WWDIR:
+		return "World writable directory";
+
+	  case E_SM_GWDIR:
+		return "Group writable directory";
+
+	  case E_SM_FILECHANGE:
+		return "File changed after open";
+
+	  case E_SM_WWFILE:
+		return "World writable file";
+
+	  case E_SM_GWFILE:
+		return "Group writable file";
+	}
+
+#if HASSTRERROR
+	return strerror(err);
+#else
+	if (err < 0 || err > sys_nerr)
+	{
+		sprintf(errstr, "Error %d", err);
+		return errstr;
+	}
+	return sys_errlist[err];
+#endif
+}
diff --git a/praliases/Makefile b/praliases/Makefile
new file mode 100644
index 0000000..4285a5b
--- /dev/null
+++ b/praliases/Makefile
@@ -0,0 +1,9 @@
+#	@(#)Makefile	8.2 (Berkeley) 9/21/96
+
+PROG=	praliases
+MAN8=	praliases.0
+CFLAGS+=-I${.CURDIR}/../src
+DPADD=	${LIBDBM}
+
+.include "../../Makefile.inc"
+.include <bsd.prog.mk>
diff --git a/praliases/Makefile.dist b/praliases/Makefile.dist
new file mode 100644
index 0000000..093f6ab
--- /dev/null
+++ b/praliases/Makefile.dist
@@ -0,0 +1,85 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.dist	8.2 (Berkeley) 9/21/96
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# location of sendmail source directory
+SRCDIR=	../src
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+# The really old (V7) DBM library is no longer supported.
+#
+DBMDEF=	-DNDBM -DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I${SRCDIR} -I/usr/sww/include/db
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-ldb -ldbm
+
+# location of praliases binary (usually /usr/sbin or /usr/etc)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	praliases.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq
+BINOWN=	bin
+BINGRP=	bin
+BINMODE=555
+
+ALL=	praliases praliases.0
+
+all: ${ALL}
+
+praliases: ${BEFORE} ${OBJS}
+	${CC} -o praliases ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+praliases.0: praliases.8
+	${NROFF} ${MANDOC} praliases.8 > praliases.0
+
+install: install-praliases install-docs
+
+install-praliases: praliases
+	install -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} praliases ${BINDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: praliases.0
+
+clean:
+	rm -f ${OBJS} praliases praliases.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: ${SRCDIR}/conf.h
diff --git a/praliases/praliases.0 b/praliases/praliases.0
new file mode 100644
index 0000000..6b53e1d
--- /dev/null
+++ b/praliases/praliases.0
@@ -0,0 +1,27 @@
+PRALIASES(1)                 BSD Reference Manual                 PRALIASES(1)
+
+NNAAMMEE
+     pprraalliiaasseess - display system mail aliases
+
+SSYYNNOOPPSSIISS
+     pprraalliiaasseess [--ff _f_i_l_e]
+
+DDEESSCCRRIIPPTTIIOONN
+     The pprraalliiaasseess utility displays the current system aliases, one per line,
+     in no particular order.
+
+     The options are as follows:
+
+     --ff      Read the specified file instead of the default sseennddmmaaiill system
+             aliases file.
+
+     The pprraalliiaasseess utility exits 0 on success, and >0 if an error occurs.
+
+FFIILLEESS
+     /etc/aliases            The default sseennddmmaaiill system aliases file.
+     /etc/aliases.db         The database version of the _/_e_t_c_/_a_l_i_a_s_e_s file.
+
+SSEEEE AALLSSOO
+     mailq(1),  sendmail(8)
+
+3rd Berkeley Distribution       April 25, 1996                               1
diff --git a/praliases/praliases.8 b/praliases/praliases.8
new file mode 100644
index 0000000..46082ba
--- /dev/null
+++ b/praliases/praliases.8
@@ -0,0 +1,41 @@
+.\"	@(#)praliases.8	8.1 (Berkeley) 9/21/96
+.Dd April 25, 1996
+.Dt PRALIASES 1
+.Os BSD 3
+.Sh NAME
+.Nm praliases
+.Nd display system mail aliases
+.Sh SYNOPSIS
+.Nm praliases
+.Op Fl f Ar file
+.Sh DESCRIPTION
+The
+.Nm praliases
+utility displays the current system aliases,
+one per line, in no particular order.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl f
+Read the specified file instead of the default
+.Nm sendmail
+system aliases file.
+.El
+.Pp
+The
+.Nm praliases
+utility exits 0 on success, and >0 if an error occurs.
+.Sh FILES
+.Bl -tag -width /var/log/sendmail.stXX -compact
+.It Pa /etc/aliases
+The default
+.Nm sendmail
+system aliases file.
+.It Pa /etc/aliases.db
+The database version of the
+.Pa /etc/aliases
+file.
+.El
+.Sh SEE ALSO
+.Xr mailq 1 ,
+.Xr sendmail 8
diff --git a/praliases/praliases.c b/praliases/praliases.c
new file mode 100644
index 0000000..361edac
--- /dev/null
+++ b/praliases/praliases.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 1983 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)praliases.c	8.5 (Berkeley) 5/28/97";
+#endif /* not lint */
+
+#include <ndbm.h>
+#define NOT_SENDMAIL
+#include <sendmail.h>
+#ifdef NEWDB
+#include <db.h>
+#endif
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	extern char *optarg;
+	extern int optind;
+	DBM *dbp;
+	datum content, key;
+	char *filename;
+	int ch;
+#ifdef NEWDB
+	const DB *db;
+	DBT newdbkey, newdbcontent;
+	char buf[MAXNAME];
+#endif
+
+	filename = "/etc/aliases";
+	while ((ch = getopt(argc, argv, "f:")) != EOF)
+		switch((char)ch) {
+		case 'f':
+			filename = optarg;
+			break;
+		case '?':
+		default:
+			(void)fprintf(stderr, "usage: praliases [-f file]\n");
+			exit(EX_USAGE);
+		}
+	argc -= optind;
+	argv += optind;
+
+#ifdef NEWDB
+	if (strlen(filename) + 4 >= sizeof buf)
+	{
+		fprintf(stderr, "Alias filename too long: %.30s...\n", filename);
+		exit(EX_USAGE);
+	}
+	(void) strcpy(buf, filename);
+	(void) strcat(buf, ".db");
+	if (db = dbopen(buf, O_RDONLY, 0444 , DB_HASH, NULL)) {
+		if (!argc) {
+			while(!db->seq(db, &newdbkey, &newdbcontent, R_NEXT))
+				printf("%.*s:%.*s\n",
+					newdbkey.size, newdbkey.data,
+					newdbcontent.size, newdbcontent.data);
+		}
+		else for (; *argv; ++argv) {
+			newdbkey.data = *argv;
+			newdbkey.size = strlen(*argv) + 1;
+			if (!db->get(db, &newdbkey, &newdbcontent, 0))
+				printf("%s:%.*s\n", newdbkey.data,
+					newdbcontent.size, newdbcontent.data);
+			else
+				printf("%s: No such key\n",
+					newdbkey.data);
+		}
+	}
+	else {
+#endif
+		if ((dbp = dbm_open(filename, O_RDONLY, 0)) == NULL) {
+			(void)fprintf(stderr,
+			    "praliases: %s: %s\n", filename, strerror(errno));
+			exit(EX_OSFILE);
+		}
+		if (!argc)
+			for (key = dbm_firstkey(dbp);
+			    key.dptr != NULL; key = dbm_nextkey(dbp)) {
+				content = dbm_fetch(dbp, key);
+				(void)printf("%.*s:%.*s\n",
+					key.dsize, key.dptr,
+					content.dsize, content.dptr);
+			}
+		else for (; *argv; ++argv) {
+			key.dptr = *argv;
+			key.dsize = strlen(*argv) + 1;
+			content = dbm_fetch(dbp, key);
+			if (!content.dptr)
+				(void)printf("%s: No such key\n", key.dptr);
+			else
+				(void)printf("%s:%.*s\n", key.dptr,
+					content.dsize, content.dptr);
+		}
+#ifdef NEWDB
+	}
+#endif
+	exit(EX_OK);
+}
diff --git a/rmail/Makefile b/rmail/Makefile
new file mode 100644
index 0000000..eb2fb48
--- /dev/null
+++ b/rmail/Makefile
@@ -0,0 +1,6 @@
+#	@(#)Makefile	8.1 (Berkeley) 5/31/93
+
+PROG=	rmail
+MAN8=	rmail.0
+
+.include <bsd.prog.mk>
diff --git a/rmail/rmail.8 b/rmail/rmail.8
new file mode 100644
index 0000000..2079d4e
--- /dev/null
+++ b/rmail/rmail.8
@@ -0,0 +1,71 @@
+.\" Copyright (c) 1983, 1990 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)rmail.8	6.10 (Berkeley) 4/29/93
+.\"
+.Dd April 29, 1993
+.Dt RMAIL 8
+.Os BSD 4.2
+.Sh NAME
+.Nm rmail
+.Nd handle remote mail received via uucp
+.Sh SYNOPSIS
+.Nm rmail
+.Ar user ...
+.Sh DESCRIPTION
+.Nm Rmail
+interprets incoming mail received via
+.Xr uucp 1 ,
+collapsing ``From'' lines in the form generated
+by
+.Xr mail.local 8
+into a single line of the form ``return-path!sender'',
+and passing the processed mail on to
+.Xr sendmail  8  .
+.Pp
+.Nm Rmail
+is explicitly designed for use with
+.Xr uucp
+and
+.Xr sendmail  .
+.Sh SEE ALSO
+.Xr uucp 1 ,
+.Xr mail.local 8 ,
+.Xr sendmail 8
+.Sh HISTORY
+The
+.Nm rmail
+program appeared in
+.Bx 4.2 .
+.Sh BUGS
+.Nm Rmail
+should not reside in
+.Pa /bin .
diff --git a/rmail/rmail.c b/rmail/rmail.c
new file mode 100644
index 0000000..29af02a
--- /dev/null
+++ b/rmail/rmail.c
@@ -0,0 +1,373 @@
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)rmail.c	8.3 (Berkeley) 5/15/95";
+#endif /* not lint */
+
+/*
+ * RMAIL -- UUCP mail server.
+ *
+ * This program reads the >From ... remote from ... lines that UUCP is so
+ * fond of and turns them into something reasonable.  It then execs sendmail
+ * with various options built from these lines. 
+ *
+ * The expected syntax is:
+ *
+ *	 <user> := [-a-z0-9]+
+ *	 <date> := ctime format
+ *	 <site> := [-a-z0-9!]+
+ * <blank line> := "^\n$"
+ *	 <from> := "From" <space> <user> <space> <date>
+ *		  [<space> "remote from" <space> <site>]
+ *    <forward> := ">" <from>
+ *	    msg := <from> <forward>* <blank-line> <body>
+ *
+ * The output of rmail(8) compresses the <forward> lines into a single
+ * from path.
+ *
+ * The err(3) routine is included here deliberately to make this code
+ * a bit more portable.
+ */
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <ctype.h>
+#include <fcntl.h>
+#include <paths.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#ifndef MAX
+# define MAX(a, b)	((a) < (b) ? (b) : (a))
+#endif
+
+void err __P((int, const char *, ...));
+void usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	extern char *optarg;
+	extern int errno, optind;
+	FILE *fp;
+	struct stat sb;
+	size_t fplen, fptlen, len;
+	off_t offset;
+	int ch, debug, i, pdes[2], pid, status;
+	char *addrp, *domain, *p, *t;
+	char *from_path, *from_sys, *from_user;
+	char *args[100], buf[2048], lbuf[2048];
+
+	debug = 0;
+	domain = "UUCP";		/* Default "domain". */
+	while ((ch = getopt(argc, argv, "D:T")) != EOF)
+		switch (ch) {
+		case 'T':
+			debug = 1;
+			break;
+		case 'D':
+			domain = optarg;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (argc < 1)
+		usage();
+
+	from_path = from_sys = from_user = NULL;
+	for (offset = 0;;) {
+
+		/* Get and nul-terminate the line. */
+		if (fgets(lbuf, sizeof(lbuf), stdin) == NULL)
+			exit (EX_DATAERR);
+		if ((p = strchr(lbuf, '\n')) == NULL)
+			err(EX_DATAERR, "line too long");
+		*p = '\0';
+
+		/* Parse lines until reach a non-"From" line. */
+		if (!strncmp(lbuf, "From ", 5))
+			addrp = lbuf + 5;
+		else if (!strncmp(lbuf, ">From ", 6))
+			addrp = lbuf + 6;
+		else if (offset == 0)
+			err(EX_DATAERR,
+			    "missing or empty From line: %s", lbuf);
+		else {
+			*p = '\n';
+			break;
+		}
+
+		if (*addrp == '\0')
+			err(EX_DATAERR, "corrupted From line: %s", lbuf);
+
+		/* Use the "remote from" if it exists. */
+		for (p = addrp; (p = strchr(p + 1, 'r')) != NULL;)
+			if (!strncmp(p, "remote from ", 12)) {
+				for (t = p += 12; *t && !isspace(*t); ++t);
+				*t = '\0';
+				if (debug)
+					(void)fprintf(stderr,
+					    "remote from: %s\n", p);
+				break;
+			}
+
+		/* Else use the string up to the last bang. */
+		if (p == NULL)
+			if (*addrp == '!')
+				err(EX_DATAERR,
+				    "bang starts address: %s", addrp);
+			else if ((t = strrchr(addrp, '!')) != NULL) {
+				*t = '\0';
+				p = addrp;
+				addrp = t + 1;
+				if (*addrp == '\0')
+					err(EX_DATAERR,
+					    "corrupted From line: %s", lbuf);
+				if (debug)
+					(void)fprintf(stderr, "bang: %s\n", p);
+			}
+
+		/* 'p' now points to any system string from this line. */
+		if (p != NULL) {
+			/* Nul terminate it as necessary. */
+			for (t = p; *t && !isspace(*t); ++t);
+			*t = '\0';
+
+			/* If the first system, copy to the from_sys string. */
+			if (from_sys == NULL) {
+				if ((from_sys = strdup(p)) == NULL)
+					err(EX_TEMPFAIL, NULL);
+				if (debug)
+					(void)fprintf(stderr,
+					    "from_sys: %s\n", from_sys);
+			}
+
+			/* Concatenate to the path string. */
+			len = t - p;
+			if (from_path == NULL) {
+				fplen = 0;
+				if ((from_path = malloc(fptlen = 256)) == NULL)
+					err(EX_TEMPFAIL, NULL);
+			}
+			if (fplen + len + 2 > fptlen) {
+				fptlen += MAX(fplen + len + 2, 256);
+				if ((from_path =
+				    realloc(from_path, fptlen)) == NULL)
+					err(EX_TEMPFAIL, NULL);
+			}
+			memmove(from_path + fplen, p, len);
+			fplen += len;
+			from_path[fplen++] = '!';
+			from_path[fplen] = '\0';
+		}
+
+		/* Save off from user's address; the last one wins. */
+		for (p = addrp; *p && !isspace(*p); ++p);
+		*p = '\0';
+		if (*addrp == '\0')
+			addrp = "<>";
+		if (from_user != NULL)
+			free(from_user);
+		if ((from_user = strdup(addrp)) == NULL)
+			err(EX_TEMPFAIL, NULL);
+
+		if (debug) {
+			if (from_path != NULL)
+				(void)fprintf(stderr,
+				    "from_path: %s\n", from_path);
+			(void)fprintf(stderr, "from_user: %s\n", from_user);
+		}
+
+		if (offset != -1)
+			offset = (off_t)ftell(stdin);
+	}
+
+	i = 0;
+	args[i++] = _PATH_SENDMAIL;	/* Build sendmail's argument list. */
+	args[i++] = "-oee";		/* No errors, just status. */
+	args[i++] = "-odq";		/* Queue it, don't try to deliver. */
+	args[i++] = "-oi";		/* Ignore '.' on a line by itself. */
+
+	/* set from system and protocol used */
+	if (from_sys == NULL)
+		(void)snprintf(buf, sizeof(buf), "-p%s", domain);
+	else if (strchr(from_sys, '.') == NULL)
+		(void)snprintf(buf, sizeof(buf), "-p%s:%s.%s",
+			domain, from_sys, domain);
+	else
+		(void)snprintf(buf, sizeof(buf), "-p%s:%s", domain, from_sys);
+	if ((args[i++] = strdup(buf)) == NULL)
+		err(EX_TEMPFAIL, NULL);
+
+					/* Set name of ``from'' person. */
+	(void)snprintf(buf, sizeof(buf), "-f%s%s",
+	    from_path ? from_path : "", from_user);
+	if ((args[i++] = strdup(buf)) == NULL)
+		err(EX_TEMPFAIL, NULL);
+
+	/*
+	 * Don't copy arguments beginning with - as they will be
+	 * passed to sendmail and could be interpreted as flags.
+	 * To prevent confusion of sendmail wrap < and > around
+	 * the address (helps to pass addrs like @gw1,@gw2:aa@bb)
+	 */
+	while (*argv) {
+		if (**argv == '-')
+			err(EX_USAGE, "dash precedes argument: %s", *argv);
+		if (strchr(*argv, ',') == NULL || strchr(*argv, '<') != NULL)
+			args[i++] = *argv;
+		else {
+			if ((args[i] = malloc(strlen(*argv) + 3)) == NULL)
+				err(EX_TEMPFAIL, "Cannot malloc");
+			sprintf (args [i++], "<%s>", *argv);
+		}
+		argv++;
+	} 
+	args[i] = 0;
+
+	if (debug) {
+		(void)fprintf(stderr, "Sendmail arguments:\n");
+		for (i = 0; args[i]; i++)
+			(void)fprintf(stderr, "\t%s\n", args[i]);
+	}
+
+	/*
+	 * If called with a regular file as standard input, seek to the right
+	 * position in the file and just exec sendmail.  Could probably skip
+	 * skip the stat, but it's not unreasonable to believe that a failed
+	 * seek will cause future reads to fail.
+	 */
+	if (!fstat(STDIN_FILENO, &sb) && S_ISREG(sb.st_mode)) {
+		if (lseek(STDIN_FILENO, offset, SEEK_SET) != offset)
+			err(EX_TEMPFAIL, "stdin seek");
+		execv(_PATH_SENDMAIL, args);
+		err(EX_OSERR, "%s", _PATH_SENDMAIL);
+	}
+
+	if (pipe(pdes) < 0)
+		err(EX_OSERR, NULL);
+
+	switch (pid = vfork()) {
+	case -1:				/* Err. */
+		err(EX_OSERR, NULL);
+	case 0:					/* Child. */
+		if (pdes[0] != STDIN_FILENO) {
+			(void)dup2(pdes[0], STDIN_FILENO);
+			(void)close(pdes[0]);
+		}
+		(void)close(pdes[1]);
+		execv(_PATH_SENDMAIL, args);
+		_exit(127);
+		/* NOTREACHED */
+	}
+
+	if ((fp = fdopen(pdes[1], "w")) == NULL)
+		err(EX_OSERR, NULL);
+	(void)close(pdes[0]);
+
+	/* Copy the file down the pipe. */
+	do {
+		(void)fprintf(fp, "%s", lbuf);
+	} while (fgets(lbuf, sizeof(lbuf), stdin) != NULL);
+
+	if (ferror(stdin))
+		err(EX_TEMPFAIL, "stdin: %s", strerror(errno));
+
+	if (fclose(fp))
+		err(EX_OSERR, NULL);
+
+	if ((waitpid(pid, &status, 0)) == -1)
+		err(EX_OSERR, "%s", _PATH_SENDMAIL);
+
+	if (!WIFEXITED(status))
+		err(EX_OSERR,
+		    "%s: did not terminate normally", _PATH_SENDMAIL);
+
+	if (WEXITSTATUS(status))
+		err(status, "%s: terminated with %d (non-zero) status",
+		    _PATH_SENDMAIL, WEXITSTATUS(status));
+	exit(EX_OK);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr, "usage: rmail [-T] [-D domain] user ...\n");
+	exit(EX_USAGE);
+}
+
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+void
+#ifdef __STDC__
+err(int eval, const char *fmt, ...)
+#else
+err(eval, fmt, va_alist)
+	int eval;
+	const char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	(void)fprintf(stderr, "rmail: ");
+	(void)vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	(void)fprintf(stderr, "\n");
+	exit(eval);
+}
diff --git a/smrsh/Makefile b/smrsh/Makefile
new file mode 100644
index 0000000..f2629a8
--- /dev/null
+++ b/smrsh/Makefile
@@ -0,0 +1,8 @@
+#	@(#)Makefile	8.1 (Berkeley) 7/2/95
+
+PROG=	smrsh
+MAN8=	smrsh.0
+CFLAGS+=-I${.CURDIR}/../src -DNDBM -DNEWDB
+
+.include "../../Makefile.inc"
+.include <bsd.prog.mk>
diff --git a/smrsh/Makefile.dist b/smrsh/Makefile.dist
new file mode 100644
index 0000000..52b4a20
--- /dev/null
+++ b/smrsh/Makefile.dist
@@ -0,0 +1,76 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.dist	8.2 (Berkeley) 9/25/96
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# location of sendmail source directory
+SRCDIR=	../src
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# include directories
+INCDIRS=-I${SRCDIR} -I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	
+
+# location of smrsh binary (usually /usr/libexec or /usr/etc)
+BINDIR=	${DESTDIR}/usr/libexec
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${ENVDEF}
+
+OBJS=	smrsh.o ${OBJADD}
+
+BINOWN=	bin
+BINGRP=	bin
+BINMODE=555
+
+ALL=	smrsh smrsh.0
+
+all: ${ALL}
+
+smrsh: ${BEFORE} ${OBJS}
+	${CC} -o smrsh ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+# Which *roff program has -mandoc support
+NROFF=	groff -Tascii
+#NROFF=	nroff -h
+MANDOC=	-mandoc
+
+smrsh.0: smrsh.8
+	${NROFF} ${MANDOC} smrsh.8 > smrsh.0
+
+install: install-smrsh install-docs
+
+install-smrsh: smrsh
+	install -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} smrsh ${BINDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: smrsh.0
+
+clean:
+	rm -f ${OBJS} smrsh smrsh.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: ${SRCDIR}/conf.h
diff --git a/smrsh/README b/smrsh/README
new file mode 100644
index 0000000..13f545c
--- /dev/null
+++ b/smrsh/README
@@ -0,0 +1,144 @@
+
+
+
+README  smrsh - sendmail restricted shell.
+
+	@(#)README	8.2	11/11/95
+
+
+This README file is provided as a courtesy of the CERT Coordination Center,
+Software Engineering Institute, Carnegie Mellon University.  This file is 
+intended as a supplement to the CERT advisory CA-93:16.sendmail.vulnerability,
+and to the software, smrsh.c, written by Eric Allman.
+
+
+
+The smrsh(8) program is intended as a replacement for /bin/sh in the
+program mailer definition of sendmail(8).  This README file describes
+the steps needed to compile and install smrsh.
+
+smrsh is a restricted shell utility that provides the ability to
+specify, through a configuration, an explicit list of executable
+programs.  When used in conjunction with sendmail, smrsh effectively
+limits sendmail's scope of program execution to only those programs
+specified in smrsh's configuration.
+
+smrsh has been written with portability in mind, and uses traditional 
+Unix library utilities.  As such, smrsh should compile on most
+Unix C compilers.
+
+
+
+To compile smrsh.c, use the following command:
+
+host.domain% cc -o smrsh smrsh.c
+
+For machines that provide dynamic linking, it is advisable to compile
+smrsh without dynamic linking.  As an example with the Sun Microsystems
+compiler, you should compile with the -Bstatic option.
+
+host.domain% cc -Bstatic -o smrsh smrsh.c
+
+
+Choose a directory that smrsh will reside in.  We will use the traditional 
+/usr/local/etc directory for the remainder of this document.
+
+As root, install smrsh in /usr/local/etc directory, with mode 511.
+
+host.domain# mv smrsh /usr/local/etc
+host.domain# chmod 511 /usr/local/etc/smrsh
+
+
+
+Next, determine the list of commands that smrsh should allow sendmail
+to run.  This list of allowable commands can be determined by:
+
+   1.  examining your /etc/aliases file, to indicate what commands 
+       are being used by the system. 
+
+   2.  surveying your host's .forward files, to determine what 
+       commands users have specified.  
+
+See the man page for aliases(5) if you are unfamiliar with the format of 
+these specifications. Additionally, you should include in the list, 
+popular commands such as /usr/ucb/vacation.
+
+You should NOT include interpreter programs such as sh(1), csh(1),
+perl(1), uudecode(1) or the stream editor sed(1) in your list of 
+acceptable commands.
+
+
+You will next need to create the directory /usr/adm/sm.bin and populate 
+it with the programs that your site feels are allowable for sendmail
+to execute.   This directory is explicitly specified in the source
+code for smrsh, so changing this directory must be accompanied with
+a change in smrsh.c.
+
+
+You will have to be root to make these modifications.
+
+After creating the /usr/adm/sm.bin directory, either copy the programs
+to the directory, or establish links to the allowable programs from
+/usr/adm/sm.bin.  Change the file permissions, so that these programs
+can not be modified by non-root users.  If you use links, you should
+ensure that the target programs are not modifiable.
+
+To allow the popular vacation(1) program by creating a link in the 
+/usr/adm/sm.bin directory, you should:
+
+host.domain# cd /usr/adm/sm.bin
+host.domain# ln -s /usr/ucb/vacation vacation
+
+
+
+
+After populating the /usr/adm/sm.bin directory, you can now configure
+sendmail to use the restricted shell.  Save the current sendmail.cf
+file prior to modifying it, as a prudent precaution.
+
+Typically, the program mailer is defined by a single line in the 
+sendmail configuration file, sendmail.cf.  This file is traditionally
+found in the /etc, /usr/lib or /etc/mail directories, depending on 
+the UNIX vendor.
+
+If you are unsure of the location of the actual sendmail configuration
+file, a search of the strings(1) output of the sendmail binary, will
+help to locate it.
+
+In order to configure sendmail to use smrsh, you must modify the Mprog 
+definition in the sendmail.cf file, by replacing the /bin/sh specification 
+with /usr/local/etc/smrsh.
+
+As an example:
+
+In most Sun Microsystems' sendmail.cf files, the line is:
+Mprog,	P=/bin/sh,   F=lsDFMeuP,  S=10, R=20, A=sh -c $u
+
+which should be changed to:
+Mprog,	P=/usr/local/etc/smrsh,   F=lsDFMeuP,  S=10, R=20, A=sh -c $u
+          ^^^^^^^^^^^^^^^^^^^^
+
+A more generic line may be:
+Mprog,		P=/bin/sh, F=lsDFM, A=sh -c $u
+
+and should be changed to;
+Mprog,		P=/usr/local/etc/smrsh, F=lsDFM, A=sh -c $u
+
+
+After modifying the Mprog definition in the sendmail.cf file, if a frozen 
+configuration file is being used, it is essential to create a new one.
+You can determine if you need a frozen configuration by discovering
+if a sendmail.fc file currently exists in either the /etc/, /usr/lib,
+or /etc/mail directories.  The specific location can be determined using
+a search of the strings(1) output of the sendmail binary.
+
+In order to create a new frozen configuration, if it is required:
+host.domain# /usr/lib/sendmail -bz
+
+Now re-start the sendmail process.  An example of how to do this on 
+a typical system follows:
+ 
+host.domain# /usr/bin/ps aux | /usr/bin/grep sendmail
+root 130  0.0  0.0  168    0 ?  IW   Oct  2  0:10 /usr/lib/sendmail -bd -q
+host.domain# /bin/kill -9 130
+host.domain# /usr/lib/sendmail -bd -q30m
diff --git a/smrsh/smrsh.0 b/smrsh/smrsh.0
new file mode 100644
index 0000000..95a3dbf
--- /dev/null
+++ b/smrsh/smrsh.0
@@ -0,0 +1,66 @@
+
+
+
+SMRSH(8)                                                 SMRSH(8)
+
+
+NNAAMMEE
+       smrsh - restricted shell for sendmail
+
+SSYYNNOOPPSSIISS
+       ssmmrrsshh --cc command
+
+DDEESSCCRRIIPPTTIIOONN
+       The  _s_m_r_s_h program is intended as a replacement for _s_h for
+       use in the ``prog'' mailer  in  _s_e_n_d_m_a_i_l(8)  configuration
+       files.   It  sharply  limits  the commands that can be run
+       using the ``|program'' syntax  of  _s_e_n_d_m_a_i_l  in  order  to
+       improve  the  over  all security of your system.  Briefly,
+       even if a ``bad guy'' can get sendmail to  run  a  program
+       without going through an alias or forward file, _s_m_r_s_h lim-
+       its the set of programs that he or she can execute.
+
+       Briefly, _s_m_r_s_h limits programs  to  be  in  the  directory
+       /usr/adm/sm.bin,  allowing  the  system  administrator  to
+       choose the set of acceptable commands.   It  also  rejects
+       any  commands with the characters ``', `<', `>', `|', `;',
+       `&', `$', `(', `)', `\r' (carriage return), or `\n'  (new-
+       line)  on the command line to prevent ``end run'' attacks.
+
+       Initial pathnames on programs are stripped, so  forwarding
+       to      ``/usr/ucb/vacation'',      ``/usr/bin/vacation'',
+       ``/home/server/mydir/bin/vacation'', and ``vacation''  all
+       actually forward to ``/usr/adm/sm.bin/vacation''.
+
+       System  administrators  should be conservative about popu-
+       lating /usr/adm/sm.bin.  Reasonable  additions  are  _v_a_c_a_-
+       _t_i_o_n(1),  _p_r_o_c_m_a_i_l(1),  and the like.  No matter how brow-
+       beaten you may be, never include any shell  or  shell-like
+       program  (such  as _p_e_r_l(1)) in the sm.bin directory.  Note
+       that this does not restrict  the  use  of  shell  or  perl
+       scripts in the sm.bin directory (using the ``#!'' syntax);
+       it simply disallows execution of arbitrary programs.
+
+CCOOMMPPIILLAATTIIOONN
+       Compilation should be trivial on most  systems.   You  may
+       need  to  use -DPATH=\"_p_a_t_h\" to adjust the default search
+       path  (defaults  to   ``/bin:/usr/bin:/usr/ucb'')   and/or
+       -DCMDBIN=\"_d_i_r\"  to  change the default program directory
+       (defaults to ``/usr/adm/sm.bin'').
+
+FFIILLEESS
+       /usr/adm/sm.bin - directory for restricted programs
+
+SSEEEE AALLSSOO
+       sendmail(8)
+
+
+
+
+
+
+
+
+                             11/02/93                           1
+
+
diff --git a/smrsh/smrsh.8 b/smrsh/smrsh.8
new file mode 100644
index 0000000..a28bd0a
--- /dev/null
+++ b/smrsh/smrsh.8
@@ -0,0 +1,105 @@
+.\" Copyright (c) 1993	Eric P. Allman
+.\" Copyright (c) 1993
+.\"     The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)smrsh.8	8.2 (Berkeley) 1/9/96
+.\"
+.TH SMRSH 8 11/02/93
+.SH NAME
+smrsh \- restricted shell for sendmail
+.SH SYNOPSIS
+.B smrsh
+.B \-c
+command
+.SH DESCRIPTION
+The
+.I smrsh
+program is intended as a replacement for
+.I sh
+for use in the ``prog'' mailer in
+.IR sendmail (8)
+configuration files.
+It sharply limits the commands that can be run using the
+``|program'' syntax of
+.I sendmail
+in order to improve the over all security of your system.
+Briefly, even if a ``bad guy'' can get sendmail to run a program
+without going through an alias or forward file,
+.I smrsh
+limits the set of programs that he or she can execute.
+.PP
+Briefly,
+.I smrsh
+limits programs to be in the directory
+/usr/adm/sm.bin,
+allowing the system administrator to choose the set of acceptable commands.
+It also rejects any commands with the characters
+`\`', `<', `>', `|', `;', `&', `$', `(', `)', `\er' (carriage return),
+or `\en' (newline)
+on the command line to prevent ``end run'' attacks.
+.PP
+Initial pathnames on programs are stripped,
+so forwarding to ``/usr/ucb/vacation'',
+``/usr/bin/vacation'',
+``/home/server/mydir/bin/vacation'',
+and
+``vacation''
+all actually forward to
+``/usr/adm/sm.bin/vacation''.
+.PP
+System administrators should be conservative about populating
+/usr/adm/sm.bin.
+Reasonable additions are
+.IR vacation (1),
+.IR procmail (1),
+and the like.
+No matter how brow-beaten you may be,
+never include any shell or shell-like program
+(such as
+.IR perl (1))
+in the
+sm.bin
+directory.
+Note that this does not restrict the use of shell or perl scripts
+in the sm.bin directory (using the ``#!'' syntax);
+it simply disallows execution of arbitrary programs.
+.SH COMPILATION
+Compilation should be trivial on most systems.
+You may need to use \-DPATH=\e"\fIpath\fP\e"
+to adjust the default search path
+(defaults to ``/bin:/usr/bin:/usr/ucb'')
+and/or \-DCMDBIN=\e"\fIdir\fP\e"
+to change the default program directory
+(defaults to ``/usr/adm/sm.bin'').
+.SH FILES
+/usr/adm/sm.bin \- directory for restricted programs
+.SH SEE ALSO
+sendmail(8)
diff --git a/smrsh/smrsh.c b/smrsh/smrsh.c
new file mode 100644
index 0000000..c3314e6
--- /dev/null
+++ b/smrsh/smrsh.c
@@ -0,0 +1,234 @@
+/*
+ * Copyright (c) 1993 Eric P. Allman
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)smrsh.c	8.5 (Berkeley) 10/19/97";
+#endif /* not lint */
+
+/*
+**  SMRSH -- sendmail restricted shell
+**
+**	This is a patch to get around the prog mailer bugs in most
+**	versions of sendmail.
+**
+**	Use this in place of /bin/sh in the "prog" mailer definition
+**	in your sendmail.cf file.  You then create CMDDIR (owned by
+**	root, mode 755) and put links to any programs you want
+**	available to prog mailers in that directory.  This should
+**	include things like "vacation" and "procmail", but not "sed"
+**	or "sh".
+**
+**	Leading pathnames are stripped from program names so that
+**	existing .forward files that reference things like
+**	"/usr/ucb/vacation" will continue to work.
+**
+**	The following characters are completely illegal:
+**		<  >  |  ^  ;  &  $  `  (  ) \n \r
+**	This is more restrictive than strictly necessary.
+**
+**	To use this, edit /etc/sendmail.cf, search for ^Mprog, and
+**	change P=/bin/sh to P=/usr/local/etc/smrsh, where this compiled
+**	binary is installed /usr/local/etc/smrsh.
+**
+**	This can be used on any version of sendmail.
+**
+**	In loving memory of RTM.  11/02/93.
+*/
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/file.h>
+#include <string.h>
+#include <ctype.h>
+#ifdef EX_OK
+# undef EX_OK
+#endif
+#include <sysexits.h>
+#include <syslog.h>
+#include <stdlib.h>
+
+/* directory in which all commands must reside */
+#ifndef CMDDIR
+# define CMDDIR		"/usr/adm/sm.bin"
+#endif
+
+/* characters disallowed in the shell "-c" argument */
+#define SPECIALS	"<|>^();&`$\r\n"
+
+/* default search path */
+#ifndef PATH
+# define PATH		"/bin:/usr/bin:/usr/ucb"
+#endif
+
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	register char *p;
+	register char *q;
+	register char *cmd;
+	int i;
+	char *newenv[2];
+	char cmdbuf[1000];
+	char pathbuf[1000];
+
+#ifndef LOG_MAIL
+	openlog("smrsh", 0);
+#else
+	openlog("smrsh", LOG_ODELAY|LOG_CONS, LOG_MAIL);
+#endif
+
+	strcpy(pathbuf, "PATH=");
+	strcat(pathbuf, PATH);
+	newenv[0] = pathbuf;
+	newenv[1] = NULL;
+
+	/*
+	**  Do basic argv usage checking
+	*/
+
+	if (argc != 3 || strcmp(argv[1], "-c") != 0)
+	{
+		fprintf(stderr, "Usage: %s -c command\n", argv[0]);
+		syslog(LOG_ERR, "usage");
+		exit(EX_USAGE);
+	}
+
+	/*
+	**  Disallow special shell syntax.  This is overly restrictive,
+	**  but it should shut down all attacks.
+	**  Be sure to include 8-bit versions, since many shells strip
+	**  the address to 7 bits before checking.
+	*/
+
+	strcpy(cmdbuf, SPECIALS);
+	for (p = cmdbuf; *p != '\0'; p++)
+		*p |= '\200';
+	strcat(cmdbuf, SPECIALS);
+	p = strpbrk(argv[2], cmdbuf);
+	if (p != NULL)
+	{
+		fprintf(stderr, "%s: cannot use %c in command\n",
+			argv[0], *p);
+		syslog(LOG_CRIT, "uid %d: attempt to use %c in command: %s",
+			getuid(), *p, argv[2]);
+		exit(EX_UNAVAILABLE);
+	}
+
+	/*
+	**  Do a quick sanity check on command line length.
+	*/
+
+	i = strlen(argv[2]);
+	if (i > (sizeof cmdbuf - sizeof CMDDIR - 2))
+	{
+		fprintf(stderr, "%s: command too long: %s\n", argv[0], argv[2]);
+		syslog(LOG_WARNING, "command too long: %.40s", argv[2]);
+		exit(EX_UNAVAILABLE);
+	}
+
+	/*
+	**  Strip off a leading pathname on the command name.  For
+	**  example, change /usr/ucb/vacation to vacation.
+	*/
+
+	/* strip leading spaces */
+	for (q = argv[2]; *q != '\0' && isascii(*q) && isspace(*q); )
+		q++;
+
+	/* find the end of the command name */
+	p = strpbrk(q, " \t");
+	if (p == NULL)
+		cmd = &q[strlen(q)];
+	else
+	{
+		*p = '\0';
+		cmd = p;
+	}
+
+	/* search backwards for last / (allow for 0200 bit) */
+	while (cmd > q)
+	{
+		if ((*--cmd & 0177) == '/')
+		{
+			cmd++;
+			break;
+		}
+	}
+
+	/* cmd now points at final component of path name */
+
+	/*
+	**  Check to see if the command name is legal.
+	*/
+
+	(void) strcpy(cmdbuf, CMDDIR);
+	(void) strcat(cmdbuf, "/");
+	(void) strcat(cmdbuf, cmd);
+#ifdef DEBUG
+	printf("Trying %s\n", cmdbuf);
+#endif
+	if (access(cmdbuf, X_OK) < 0)
+	{
+		/* oops....  crack attack possiblity */
+		fprintf(stderr, "%s: %s not available for sendmail programs\n",
+			argv[0], cmd);
+		if (p != NULL)
+			*p = ' ';
+		syslog(LOG_CRIT, "uid %d: attempt to use %s", getuid(), cmd);
+		exit(EX_UNAVAILABLE);
+	}
+	if (p != NULL)
+		*p = ' ';
+
+	/*
+	**  Create the actual shell input.
+	*/
+
+	strcpy(cmdbuf, CMDDIR);
+	strcat(cmdbuf, "/");
+	strcat(cmdbuf, cmd);
+
+	/*
+	**  Now invoke the shell
+	*/
+
+#ifdef DEBUG
+	printf("%s\n", cmdbuf);
+#endif
+	execle("/bin/sh", "/bin/sh", "-c", cmdbuf, NULL, newenv);
+	syslog(LOG_CRIT, "Cannot exec /bin/sh: %m");
+	perror("/bin/sh");
+	exit(EX_OSFILE);
+}
diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..0be76ad
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,47 @@
+#	@(#)Makefile	8.8 (Berkeley) 3/28/97
+
+#########################################################################
+#  This Makefile is for 4.4BSD only!!!  For all other systems, use	#
+#  the "makesendmail" script.						#
+#########################################################################
+
+PROG=	sendmail
+
+# define the database format to use for aliases et al.  Can be -DNEWDB (for
+# the new BSD database package -- this is preferred) or -DNDBM for the NDBM
+# database package.  The old putrescent V7 DBM package is no longer
+# supported.
+# You can define both NEWDB and NDBM during a transition period; old
+# databases are read, but the new format will be used on any rebuilds.  On
+# really gnarly systems, you can set this to null; it will crawl like a high
+# spiral snail, but it will work.
+DBMDEF=	-DNEWDB
+
+CFLAGS+=-I${.CURDIR} ${DBMDEF} -DNETISO
+
+SRCS=	alias.c arpadate.c clock.c collect.c conf.c convtime.c daemon.c \
+	deliver.c domain.c envelope.c err.c headers.c macro.c main.c map.c \
+	mci.c mime.c parseaddr.c queue.c readcf.c recipient.c safefile.c \
+	savemail.c srvrsmtp.c stab.c stats.c sysexits.c trace.c udb.c \
+	usersmtp.c util.c version.c
+DPADD=	
+LDADD=	
+MAN1=	mailq.0 newaliases.0
+MAN5=	aliases.0
+MAN8=	sendmail.0 
+LINKS=	/usr/sbin/sendmail /usr/bin/newaliases \
+	/usr/sbin/sendmail /usr/bin/mailq
+BINDIR=	/usr/sbin
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=6555
+
+beforeinstall:
+#	install -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+#	    ${DESTDIR}/etc/sendmail.fc
+	install -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${DESTDIR}/var/log/sendmail.st
+	install -c -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/sendmail.hf \
+	    ${DESTDIR}/usr/share/misc
+
+.include <bsd.prog.mk>
diff --git a/src/Makefiles/Makefile.386BSD b/src/Makefiles/Makefile.386BSD
new file mode 100644
index 0000000..4eb18ff
--- /dev/null
+++ b/src/Makefiles/Makefile.386BSD
@@ -0,0 +1,45 @@
+#	@(#)Makefile.386BSD	8.6 (Berkeley) 8/7/97
+
+PROG=	sendmail
+
+# define the database format to use for aliases et al.  Can be -DNEWDB (for
+# the new BSD database package -- this is preferred) or -DNDBM for the NDBM
+# database package.  The old putrescent V7 DBM package is no longer
+# supported.
+# You can define both NEWDB and NDBM during a transition period; old
+# databases are read, but the new format will be used on any rebuilds.  On
+# really gnarly systems, you can set this to null; it will crawl like a high
+# spiral snail, but it will work.
+DBMDEF=	-DNEWDB
+
+CFLAGS+=-I${.CURDIR} ${DBMDEF} -DMIME
+
+SRCS=	alias.c arpadate.c clock.c collect.c conf.c convtime.c daemon.c \
+	deliver.c domain.c envelope.c err.c headers.c macro.c main.c map.c \
+	mci.c mime.c parseaddr.c queue.c readcf.c recipient.c safefile.c \
+	savemail.c srvrsmtp.c stab.c stats.c sysexits.c trace.c udb.c \
+	usersmtp.c util.c version.c
+DPADD=	
+LDADD=	$(LIBUTIL)
+MAN1=	newaliases.0 mailq.0
+MAN5=	aliases.0
+MAN8=	sendmail.0 
+LINKS=	/usr/sbin/sendmail /usr/bin/newaliases \
+	/usr/sbin/sendmail /usr/bin/mailq \
+	/usr/sbin/sendmail /usr/bin/hoststat \
+	/usr/sbin/sendmail /usr/bin/purgestat
+INSTALL=install
+BINDIR=	/usr/sbin
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+beforeinstall:
+#	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+#	    ${DESTDIR}/etc/sendmail.fc
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${DESTDIR}/var/log/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/sendmail.hf \
+	    ${DESTDIR}/usr/share/misc
+
+.include <bsd.prog.mk>
diff --git a/src/Makefiles/Makefile.A-UX b/src/Makefiles/Makefile.A-UX
new file mode 100644
index 0000000..69f75e7
--- /dev/null
+++ b/src/Makefiles/Makefile.A-UX
@@ -0,0 +1,115 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.A-UX	8.16 (Berkeley) 8/7/97
+#
+#  Tested on A/UX 3.1.1.
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#   If you are running A/UX prior to 3.1, delete -DNEWDB
+DBMDEF=	-DNDBM -DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D_POSIX_SOURCE
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+#   If you are running A/UX prior to 3.1, delete -ldb
+#   It may be necessary to change -lUTIL to -lmalloc on older versions
+LIBS=	-ldbm -ldb -lposix -lUTIL
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do ; rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.AIX b/src/Makefiles/Makefile.AIX
new file mode 100644
index 0000000..b5fabce
--- /dev/null
+++ b/src/Makefiles/Makefile.AIX
@@ -0,0 +1,117 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on AIX 3.1.5 and 3.2.3e.
+#
+#	@(#)Makefile.AIX	8.13 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# you can use -O3 on AIX 3.2.4 or greater ONLY!
+O=	-g
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+#
+#  If you did not install the NEWDB on your AIX platform, use:
+#DBMDEF=-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D_AIX3
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system -- add -ls if you define USEGETCONFATTR
+LIBS=	-ldbm -ldb
+#
+#  If you did not install the NEWDB on your AIX platform, use:
+#LIBS=	-ldbm
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/sbin/newaliases ${DESTDIR}/usr/sbin/mailq \
+	${DESTDIR}/usr/sbin/hoststat ${DESTDIR}/usr/sbin/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	system
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.AIX.2 b/src/Makefiles/Makefile.AIX.2
new file mode 100644
index 0000000..047ebb1
--- /dev/null
+++ b/src/Makefiles/Makefile.AIX.2
@@ -0,0 +1,122 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on AIX/RT V2.2.1  OPSYS level 1773
+#
+#	@(#)Makefile.AIX.2	8.5 (Berkeley) 8/7/97
+#
+
+SMROOT=	/usr/local/newmail
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-g
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM (or GNU dbm)
+#	-DNEWDB -- use new Berkeley DB (recommended)
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB -DNIS
+#
+#  If you did not install the NEWDB on your AIX/RT V2 platform, get the latest
+#  GNU dbm, and use:
+#DBMDEF=-DNDBM
+
+# environment definitions (drag in BSD compatibility)
+ENVDEF= -DBSD -DBSD_INCLUDES -DBSD_REMAP_SIGNAL_TO_SIGVEC \
+	-D_PATH_SENDMAILCF=\"${SMROOT}/sendmail.cf\" \
+	-D_PATH_SENDMAILPID=\"${SMROOT}/sendmail.pid\"
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/u/markw/src/db.1.85/PORT/aixrt/include -I/u/markw/src/db.1.85/PORT/aixrt -I/fs/work/src/bind/include
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system -- 
+#  This port uses the AIX/RT BSD compatibility library -lbsd,
+#  Add to this the location of either the NEWDB package library, or 
+#  the GNU DBM library. the system supplied DBM utilities are ANCIENT.
+#
+LIBS= -lbsd /u/markw/src/db.1.85/PORT/aixrt/libdb.a /usr/local/lib/libgldavg.a /fs/work/src/bind/res/libresolv.a
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${SMROOT}/bin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${SMROOT}
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${SMROOT}
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	newaliases mailq hoststat purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	system
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	nroff -Tlp
+#NROFF=	nroff -h
+#NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.AIX.4 b/src/Makefiles/Makefile.AIX.4
new file mode 100644
index 0000000..be3cfa4
--- /dev/null
+++ b/src/Makefiles/Makefile.AIX.4
@@ -0,0 +1,117 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on AIX 3.1.5 and 3.2.3e.
+#
+#	@(#)Makefile.AIX	8.11 (Berkeley) 9/20/96
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# you can use -O3 on AIX 3.2.4 or greater ONLY!
+O=	-O3
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+#
+#  If you did not install the NEWDB on your AIX platform, use:
+#DBMDEF=-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D_AIX4
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system -- add -ls if you define USEGETCONFATTR
+LIBS=	-ldbm -ldb
+#
+#  If you did not install the NEWDB on your AIX platform, use:
+#LIBS=	-ldbm
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/sbin/newaliases ${DESTDIR}/usr/sbin/mailq \
+	${DESTDIR}/usr/sbin/hoststat ${DESTDIR}/usr/sbin/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	system
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Altos b/src/Makefiles/Makefile.Altos
new file mode 100644
index 0000000..04a344c
--- /dev/null
+++ b/src/Makefiles/Makefile.Altos
@@ -0,0 +1,122 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on Altos System V.
+#
+#	@(#)Makefile.Altos	8.8 (Berkeley) 3/28/97
+#
+
+# The Altos System V compiler does not understand ANSI
+CC=	gcc
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DALTOS_SYSTEM_V
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lsocket -lrpc
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=	
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=cp
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	-mv ${BINDIR}/sendmail ${BINDIR}/sendmail.old
+	${INSTALL} sendmail ${BINDIR}
+	chown ${BINOWN} ${BINDIR}/sendmail
+	chgrp ${BINGRP} ${BINDIR}/sendmail
+	chmod ${BINMODE} ${BINDIR}/sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} /dev/null ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	${INSTALL} sendmail.hf ${HFDIR}
+	chown ${BINOWN} ${HFDIR}/sendmail.hf
+	chgrp ${BINGRP} ${HFDIR}/sendmail.hf
+	chmod 444 ${HFDIR}/sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.BSD-OS b/src/Makefiles/Makefile.BSD-OS
new file mode 100644
index 0000000..deb9a1b
--- /dev/null
+++ b/src/Makefiles/Makefile.BSD-OS
@@ -0,0 +1,39 @@
+#
+#  This Makefile is for BSDI boxes running BSD-OS (formerly BSD-386).
+#
+#	@(#)Makefile.BSD-OS	8.7 (Berkeley) 8/7/97
+#
+
+PROG=	sendmail
+DBMDEF=	-DNEWDB
+CFLAGS+=-I${.CURDIR} ${DBMDEF} -DNETISO
+
+SRCS=	alias.c arpadate.c clock.c collect.c conf.c convtime.c daemon.c \
+	deliver.c domain.c envelope.c err.c headers.c macro.c main.c map.c \
+	mci.c mime.c parseaddr.c queue.c readcf.c recipient.c safefile.c \
+	savemail.c srvrsmtp.c stab.c stats.c sysexits.c trace.c udb.c \
+	usersmtp.c util.c version.c
+DPADD=	${LIBUTIL} ${LIBKVM}
+LDADD=	-lutil -lkvm
+MAN1=	mailq.0 newaliases.0
+MAN5=	aliases.0
+MAN8=	sendmail.0 
+LINKS=	/usr/sbin/sendmail /usr/bin/newaliases \
+	/usr/sbin/sendmail /usr/bin/mailq \
+	/usr/sbin/sendmail /usr/bin/hoststat \
+	/usr/sbin/sendmail /usr/bin/purgestat
+INSTALL=install
+BINDIR=	/usr/sbin
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+beforeinstall:
+#	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+#	    ${DESTDIR}/etc/sendmail.fc
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${DESTDIR}/var/log/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/sendmail.hf \
+	    ${DESTDIR}/usr/share/misc
+
+.include <bsd.prog.mk>
diff --git a/src/Makefiles/Makefile.BSD43 b/src/Makefiles/Makefile.BSD43
new file mode 100644
index 0000000..9cb506f
--- /dev/null
+++ b/src/Makefiles/Makefile.BSD43
@@ -0,0 +1,129 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	This is based on work from Jim Oldroyd -- I believe he was
+#	using a fairly old Mt Xinu port.
+#
+#	It should also work on UMIPS-BSD from MIPS, if you still have
+#	any lying around.
+#
+#	@(#)Makefile.BSD43	8.11 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DoldBSD43
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-ldbm -lresolv -ll
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=	unistd.h stddef.h stdlib.h dirent.h sys/time.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+unistd.h stddef.h stdlib.h sys/time.h:
+	cp /dev/null $@
+
+sys/time.h: sys
+
+sys:
+	mkdir sys
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.CLIX b/src/Makefiles/Makefile.CLIX
new file mode 100644
index 0000000..521490f
--- /dev/null
+++ b/src/Makefiles/Makefile.CLIX
@@ -0,0 +1,120 @@
+#
+#  This makefile is for clipper-based Intergraph systems running CLIX.
+#  It and the defines supporting it in the source tree should be considered
+#  alpha-quality and used at own risk.
+#
+#  Porting done for CICNet, Inc., on behalf the Michigan State Department
+#  of Natural Resources.
+#
+#  --Paul Southworth <pauls@cic.net>
+#
+#	@(#)Makefile.CLIX	8.9 (Berkeley) 8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DCLIX
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS= -I/usr/include
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lnsl -lbsd
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD= 
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=cp
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail # aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail #install-docs
+
+install-sendmail: sendmail
+	#${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	${INSTALL} sendmail ${BINDIR}
+	chmod ${BINMODE} ${BINDIR}/sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	#${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	#    ${STDIR}/sendmail.st
+	${INSTALL} /dev/null ${STDIR}/sendmail.st
+	#${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+	${INSTALL} sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail #aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.CSOS b/src/Makefiles/Makefile.CSOS
new file mode 100644
index 0000000..6d6baf4
--- /dev/null
+++ b/src/Makefiles/Makefile.CSOS
@@ -0,0 +1,115 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- which is fine since there is no nroff under CSOS.
+#
+#	Contributed by Scott Bolte <scott@craycos.com>.
+#
+#	@(#)Makefile.CSOS	8.9	(Berkeley)	8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+# Contact CCC for new db support. If all goes well, it should be
+# available soon.
+#
+DBMDEF=
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#LIBS=	-ldb -ldbm
+LIBS=	-lnet
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=cpset
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+SHELL=	/bin/sh
+
+ALL=	sendmail
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail
+
+install-sendmail: sendmail
+	${INSTALL} sendmail ${BINDIR} ${BINMODE} ${BINOWN} ${BINGRP}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} /dev/null ${STDIR}/sendmail.st 644 ${BINOWN} ${BINGRP}
+	${INSTALL} sendmail.hf ${HFDIR} 444 ${BINOWN} ${BINGRP}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.ConvexOS b/src/Makefiles/Makefile.ConvexOS
new file mode 100644
index 0000000..f4a814f
--- /dev/null
+++ b/src/Makefiles/Makefile.ConvexOS
@@ -0,0 +1,116 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on CxOS 11.0 beta 1 and 10.x.
+#
+#	@(#)Makefile.ConvexOS	8.14 (Berkeley) 8/7/97
+#
+
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-g -D__STDC__ -d non_int_bit_field
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DYPCOMPAT -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+#	-D_ACL and -D_AUDIT are needed for SecureWare/SecureOS on ConvexOS
+#ENVDEF=-D_ACL -D_AUDIT -DSECUREWARE
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#	-lshare is for the Fair Share Scheduler
+#	-lprot is for the SecureWare hooks
+#LIBS=	-lshare -lprot
+LIBS=	-lshare
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	nroff -h
+#NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Dell b/src/Makefiles/Makefile.Dell
new file mode 100644
index 0000000..06f31e3
--- /dev/null
+++ b/src/Makefiles/Makefile.Dell
@@ -0,0 +1,118 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	Based on a Makefile for Dell SVR4 Issue 2.2 from Kimmo Suominen
+#	<kim@grendel.lut.fi> -- I haven't tested this myself.  It may
+#	work on other SVR4 ports.
+#
+#	@(#)Makefile.Dell	8.10 (Berkeley) 8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O2
+
+CC=	gcc
+#DESTDIR=/usr/local/sendmail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB -DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D__svr4__
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-ldb -ldbm -lresolv -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.DomainOS b/src/Makefiles/Makefile.DomainOS
new file mode 100644
index 0000000..f46682c
--- /dev/null
+++ b/src/Makefiles/Makefile.DomainOS
@@ -0,0 +1,129 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on DomainOS 10.3.5
+#
+#	@(#)Makefile.DomainOS	8.13 (Berkeley) 8/7/97
+#
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNDBM -DNEWDB -DYPCOMPAT -- use both plus YP compatility
+#	-DNIS -- include client NIS support
+# The really old (V7) DBM library is no longer supported.
+# If YPCOMPAT is defined and /var/yp/Makefile exists, sendmail will build
+#   both the NEWDB and DBM libraries (the DBM just for YP).
+#
+
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+# You might want to use the BIND 4.9 resolver library here
+#LIBS=	-ldb
+LIBS=	-lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=	unistd.h dirent.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. -A nansi $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+unistd.h:
+	cp /dev/null unistd.h
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Dynix b/src/Makefiles/Makefile.Dynix
new file mode 100644
index 0000000..63c454a
--- /dev/null
+++ b/src/Makefiles/Makefile.Dynix
@@ -0,0 +1,119 @@
+#
+#  Tested on Dynix 3.2.0.
+#
+#	From Jim Davis <jdavis@cs.arizona.edu>.
+#
+#     ``There is no strtol in libc (well there is in the 'att universe'
+#	libc, but I couldn't figure out how to link that in), so I
+#	got the Chris Torek strtol.c from bsd-sources on uunet and
+#	compiled that.  There is no native ndbm either; I couldn't
+#	get db 1.72 to pass it's regression test, so I used gdbm-1.7
+#	instead.  I compiled it with gcc 1.40a.  The -lseq is to pick
+#	up getopt.''
+#
+#	@(#)Makefile.Dynix	8.10 (Berkeley) 7/6/97
+#
+
+CC= gcc
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O -g
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lseq
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=strtol.o
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	staff # no kmem group,
+BINMODE=4555  # so not setgid
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.EWS-UX_V b/src/Makefiles/Makefile.EWS-UX_V
new file mode 100644
index 0000000..e97d2be
--- /dev/null
+++ b/src/Makefiles/Makefile.EWS-UX_V
@@ -0,0 +1,133 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on NEC EWS-UX/V 4.2
+#
+#	@(#)Makefile.EWS-UX_V	8.8 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# make sure that /usr/abiccs/bin/cc is used (do not use /usr/ucb/cc).
+#CC=	/bin/cc -KOlimit=900
+CC=	/usr/abiccs/bin/cc -KOlimit=900
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-Dnec_ews_svr4
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+LIBS=	ndbm.o -lsocket -lnsl -lelf -lresolv # -l44bsd # with NDBM
+#LIBS=	-lsocket -lnsl -lelf -ldb -lresolv # -l44bsd   # with NEWDB
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/var/ucblib
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h ndbm.h ndbm.o
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	echo '#ifndef _LOCAL_SYSEXITS_H_' > sysexits.h;
+	echo '#define _LOCAL_SYSEXITS_H_' >> sysexits.h;
+	cat /usr/abiccs/ucbinclude/sysexits.h >> sysexits.h;
+	echo '#endif /* _LOCAL_SYSEXITS_H_ */' >> sysexits.h;
+#	ln -s /usr/abiccs/ucbinclude/sysexits.h .
+
+ndbm.h:
+	ln -s /usr/abiccs/ucbinclude/ndbm.h .
+
+ndbm.o:
+	ar x /usr/abiccs/ucblib/libucb.a ndbm.o
+#	ar x /usr/ucblib/libucb.a ndbm.o
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.FreeBSD b/src/Makefiles/Makefile.FreeBSD
new file mode 100644
index 0000000..f3ae29a
--- /dev/null
+++ b/src/Makefiles/Makefile.FreeBSD
@@ -0,0 +1,52 @@
+#
+#  Makefile for FreeBSD
+#
+#	@(#)Makefile.FreeBSD	8.8 (Berkeley) 8/7/97
+
+PROG=	sendmail
+
+# define the database format to use for aliases et al.  Can be -DNEWDB (for
+# the new BSD database package -- this is preferred) or -DNDBM for the NDBM
+# database package.  The old putrescent V7 DBM package is no longer
+# supported.
+# You can define both NEWDB and NDBM during a transition period; old
+# databases are read, but the new format will be used on any rebuilds.  On
+# really gnarly systems, you can set this to null; it will crawl like a high
+# spiral snail, but it will work.
+DBMDEF=	-DNEWDB -DNIS
+
+CFLAGS+=-I${.CURDIR} ${DBMDEF}
+
+SRCS=	alias.c arpadate.c clock.c collect.c conf.c convtime.c daemon.c \
+	deliver.c domain.c envelope.c err.c headers.c macro.c main.c map.c \
+	mci.c mime.c parseaddr.c queue.c readcf.c recipient.c safefile.c \
+	savemail.c srvrsmtp.c stab.c stats.c sysexits.c trace.c udb.c \
+	usersmtp.c util.c version.c
+DPADD=	${LIBUTIL}
+LDADD=	-lutil
+#
+# FreeBSD 1.0 RELEASE has GNU man and doesn't need preformatted man pages anymore
+#	(assuming you consider a slower "man" command a feature)
+#
+MAN1=	mailq.1 newaliases.1
+MAN5=	aliases.5
+MAN8=	sendmail.8 
+LINKS=	/usr/sbin/sendmail /usr/bin/newaliases \
+	/usr/sbin/sendmail /usr/bin/mailq \
+	/usr/sbin/sendmail /usr/bin/hoststat \
+	/usr/sbin/sendmail /usr/bin/purgestat
+INSTALL=install
+BINDIR=	/usr/sbin
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+beforeinstall:
+#	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+#	    ${DESTDIR}/etc/sendmail.fc
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${DESTDIR}/var/log/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/sendmail.hf \
+	    ${DESTDIR}/usr/share/misc
+
+.include <bsd.prog.mk>
diff --git a/src/Makefiles/Makefile.HP-UX b/src/Makefiles/Makefile.HP-UX
new file mode 100644
index 0000000..5745386
--- /dev/null
+++ b/src/Makefiles/Makefile.HP-UX
@@ -0,0 +1,115 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on HP-UX 9.05 on 7xx series and HP-UX 9.04
+#  on 8xx series.
+#
+#	@(#)Makefile.HP-UX	8.17 (Berkeley) 8/7/97
+#
+
+CC=	cc -Aa -D_HPUX_SOURCE
+
+# use O=-O (usual) or O=-g (debugging)
+# +O is OK on 7xx, and 300xx at 9.0
+O=	+O1
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -lresolv if you are not running BIND 4.9.x
+LIBS=	-ldb -lndbm -lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	cpset sendmail ${BINDIR} ${BINMODE} ${BINOWN} ${BINGRP}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cpset /dev/null ${STDIR}/sendmail.st 644 ${BINOWN} ${BINGRP}
+	cpset sendmail.hf ${HFDIR} 444 ${BINOWN} ${BINGRP}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.HP-UX.10.x b/src/Makefiles/Makefile.HP-UX.10.x
new file mode 100644
index 0000000..87b8f3a
--- /dev/null
+++ b/src/Makefiles/Makefile.HP-UX.10.x
@@ -0,0 +1,115 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on HP-UX 10.x.  Changes for 10.0 contributed
+#  by John Beck of Hewlett-Packard.
+#
+#	@(#)Makefile.HP-UX.10.x	8.11 (Berkeley) 8/7/97
+#
+
+CC=	cc -Aa -D_HPUX_SOURCE
+
+# use O=-O (usual) or O=-g (debugging)
+# +O is OK on 7xx, and 300xx at 9.0
+O=	+O3
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DV4FS
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -lresolv if you are not running BIND 4.9.x
+LIBS=	-ldb -lndbm -lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/share/lib
+
+# additional .o files needed
+OBJADD=
+
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	cpset sendmail ${BINDIR} ${BINMODE} ${BINOWN} ${BINGRP}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cpset /dev/null ${STDIR}/sendmail.st 644 ${BINOWN} ${BINGRP}
+	cpset sendmail.hf ${HFDIR} 444 ${BINOWN} ${BINGRP}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.IRIX b/src/Makefiles/Makefile.IRIX
new file mode 100644
index 0000000..4235f02
--- /dev/null
+++ b/src/Makefiles/Makefile.IRIX
@@ -0,0 +1,114 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on IRIX 4.0.4.
+#
+#	@(#)Makefile.IRIX	8.15 (Berkeley) 8/7/97
+#
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB (requires -ldb)
+#	-DNIS -- include NIS support (requires -lsun)
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF= -DIRIX
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+#	If running bind-4.9.5, you may need to remove -lsun
+LIBS= -lmld -lmalloc -lsun
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bsd/newaliases ${DESTDIR}/usr/bsd/mailq \
+	${DESTDIR}/usr/bsd/hoststat ${DESTDIR}/usr/bsd/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m ${BINMODE} -f ${BINDIR} sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m 444 -f ${HFDIR} sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.IRIX.5.x b/src/Makefiles/Makefile.IRIX.5.x
new file mode 100644
index 0000000..76b25b6
--- /dev/null
+++ b/src/Makefiles/Makefile.IRIX.5.x
@@ -0,0 +1,112 @@
+#
+#  This Makefile is designed to work on the old "make" program.
+#
+#  Tested on IRIX 5.3 by Kari E. Hurtta <Kari.Hurtta@fmi.fi>.
+#
+#	@(#)Makefile.IRIX.5.x	8.11 (Berkeley) 3/28/97
+#
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB (requires -ldb)
+#	-DNIS -- include NIS support (requires -lsun)
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+#  N.B.:  Include -D__BIT_TYPES_DEFINED__ if you use -DNEWDB!
+#
+DBMDEF=	-DNDBM -DNIS
+#DBMDEF=	-DNDBM -DNIS -DNEWDB -D__BIT_TYPES_DEFINED__
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF= -DIRIX5
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS= -lmld -lmalloc
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bsd/newaliases ${DESTDIR}/usr/bsd/mailq \
+	${DESTDIR}/usr/bsd/hoststat ${DESTDIR}/usr/bsd/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m ${BINMODE} -f ${BINDIR} sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m 444 -f ${HFDIR} sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.IRIX.6.x b/src/Makefiles/Makefile.IRIX.6.x
new file mode 100644
index 0000000..ed09ab0
--- /dev/null
+++ b/src/Makefiles/Makefile.IRIX.6.x
@@ -0,0 +1,134 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  IRIX 6.2 is successor of IRIX 5.3.  It combines 64bit IRIX 6.[01] and
+#  32bit IRIX 5.x.
+#
+#	IRIX 6.2 support provided by Kari Hurtta <Kari.Hurtta@dionysos.fmi.fi>.
+#
+#	@(#)Makefile.IRIX.6.x	8.5	(Berkeley)	4/7/97
+#
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# Select what ABI we are using -- see abi(5) for details
+#    -32	~ IRIX 5.3				(default: -mips2)
+#                 - long and pointer are 32 bit
+#    -n32        New to IRIX 6.2			(default: -mips3)
+#                 - long and pointer are 32 bit
+#    -64	~ IRIX 6.1				(default: -mips4)
+#                 - long and pointer are 64 bit
+# We force ABI here, so then it does not depend on CPU
+ABI=	-n32
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB (requires -ldb)
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+#  N.B.:  Include -D__BIT_TYPES_DEFINED__ if you use -DNEWDB!
+#
+DBMDEF=	-DNDBM -DNIS
+#DBMDEF=	-DNDBM -DNIS -DNEWDB -D__BIT_TYPES_DEFINED__
+
+# environment definitions (e.g., -D_AIX3)
+# -DIRIX6 is needed, if you use ABI=-32
+#    (or conf.h can't make difference between IRIX 5.3 and IRIX 6.2)
+ENVDEF= -DIRIX6 ${ABI}
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS= -lelf
+
+# loader options
+LDOPTS=	${ABI}
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bsd/newaliases ${DESTDIR}/usr/bsd/mailq \
+	${DESTDIR}/usr/bsd/hoststat ${DESTDIR}/usr/bsd/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m ${BINMODE} -f ${BINDIR} sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m 444 -f ${HFDIR} sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.IRIX64.6.0 b/src/Makefiles/Makefile.IRIX64.6.0
new file mode 100644
index 0000000..4d405ab
--- /dev/null
+++ b/src/Makefiles/Makefile.IRIX64.6.0
@@ -0,0 +1,114 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on IRIX64 6.0.
+#  Changes from Mark R. Levinson <ml@cvdev.rochester.edu>.
+#
+#	@(#)Makefile.IRIX64.6.0	8.8 (Berkeley) 8/7/97
+#
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB (requires -ldb)
+#	-DNIS -- include NIS support (requires -lsun)
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF= -DIRIX64
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS= -lelf -lmalloc
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bsd/newaliases ${DESTDIR}/usr/bsd/mailq \
+	${DESTDIR}/usr/bsd/hoststat ${DESTDIR}/usr/bsd/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m ${BINMODE} -f ${BINDIR} sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m 444 -f ${HFDIR} sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.IRIX64.6.1 b/src/Makefiles/Makefile.IRIX64.6.1
new file mode 100644
index 0000000..4d405ab
--- /dev/null
+++ b/src/Makefiles/Makefile.IRIX64.6.1
@@ -0,0 +1,114 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on IRIX64 6.0.
+#  Changes from Mark R. Levinson <ml@cvdev.rochester.edu>.
+#
+#	@(#)Makefile.IRIX64.6.0	8.8 (Berkeley) 8/7/97
+#
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB (requires -ldb)
+#	-DNIS -- include NIS support (requires -lsun)
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF= -DIRIX64
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS= -lelf -lmalloc
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bsd/newaliases ${DESTDIR}/usr/bsd/mailq \
+	${DESTDIR}/usr/bsd/hoststat ${DESTDIR}/usr/bsd/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m ${BINMODE} -f ${BINDIR} sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m 444 -f ${HFDIR} sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.IRIX64.6.x b/src/Makefiles/Makefile.IRIX64.6.x
new file mode 100644
index 0000000..ed09ab0
--- /dev/null
+++ b/src/Makefiles/Makefile.IRIX64.6.x
@@ -0,0 +1,134 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  IRIX 6.2 is successor of IRIX 5.3.  It combines 64bit IRIX 6.[01] and
+#  32bit IRIX 5.x.
+#
+#	IRIX 6.2 support provided by Kari Hurtta <Kari.Hurtta@dionysos.fmi.fi>.
+#
+#	@(#)Makefile.IRIX.6.x	8.5	(Berkeley)	4/7/97
+#
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# Select what ABI we are using -- see abi(5) for details
+#    -32	~ IRIX 5.3				(default: -mips2)
+#                 - long and pointer are 32 bit
+#    -n32        New to IRIX 6.2			(default: -mips3)
+#                 - long and pointer are 32 bit
+#    -64	~ IRIX 6.1				(default: -mips4)
+#                 - long and pointer are 64 bit
+# We force ABI here, so then it does not depend on CPU
+ABI=	-n32
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB (requires -ldb)
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+#  N.B.:  Include -D__BIT_TYPES_DEFINED__ if you use -DNEWDB!
+#
+DBMDEF=	-DNDBM -DNIS
+#DBMDEF=	-DNDBM -DNIS -DNEWDB -D__BIT_TYPES_DEFINED__
+
+# environment definitions (e.g., -D_AIX3)
+# -DIRIX6 is needed, if you use ABI=-32
+#    (or conf.h can't make difference between IRIX 5.3 and IRIX 6.2)
+ENVDEF= -DIRIX6 ${ABI}
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS= -lelf
+
+# loader options
+LDOPTS=	${ABI}
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bsd/newaliases ${DESTDIR}/usr/bsd/mailq \
+	${DESTDIR}/usr/bsd/hoststat ${DESTDIR}/usr/bsd/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m ${BINMODE} -f ${BINDIR} sendmail
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -u ${BINOWN} -g ${BINGRP} -m 444 -f ${HFDIR} sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.ISC b/src/Makefiles/Makefile.ISC
new file mode 100644
index 0000000..04f8bf4
--- /dev/null
+++ b/src/Makefiles/Makefile.ISC
@@ -0,0 +1,109 @@
+#
+#  Makefile for ISC (SunSoft) UNIX.
+#
+#	Contributed by J.J. Bailey <jjb@jagware.bcc.com>
+#
+#	@(#)Makefile.ISC	8.11	(Berkeley)	8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DISC_UNIX -D_POSIX_SOURCE -D_SYSV3
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+LIBS=	-lyp -lrpc -lndbm -linet -lcposix
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/spool/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.KSR b/src/Makefiles/Makefile.KSR
new file mode 100644
index 0000000..291b19c
--- /dev/null
+++ b/src/Makefiles/Makefile.KSR
@@ -0,0 +1,113 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on KSR OS 1.2.2.  Contributed by Todd C. Miller
+#	<Todd.Miller@cs.colorado.edu>
+#
+#	@(#)Makefile.KSR	8.5 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib -L/usr/shlib -L/usr/lib
+
+# libraries required on your system
+#  delete -lresolv if you are not running BIND 4.9.x
+LIBS=	-ldbm -ldb -lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/adm/sendmail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/share/lib
+
+# additional .o files needed
+OBJADD=
+
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${BINDIR}/newaliases ${BINDIR}/mailq \
+	${BINDIR}/hoststat ${BINDIR}/purgestat
+INSTALL=installbsd
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDADD} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN}.${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+	rm -f /usr/sbin/smtpd
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
diff --git a/src/Makefiles/Makefile.LUNA b/src/Makefiles/Makefile.LUNA
new file mode 100644
index 0000000..9fdc842
--- /dev/null
+++ b/src/Makefiles/Makefile.LUNA
@@ -0,0 +1,148 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.LUNA	8.8 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE= dirent.h stddef.h stdlib.h unistd.h limits.h time.h sys/time.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent    direct" >> dirent.h
+
+stddef.h unistd.h limits.h:
+	if [ -f /usr/include/$@ ]; then \
+		ln -s /usr/include/$@ .; \
+	else \
+		cp /dev/null $@; \
+	fi
+
+stdlib.h:
+	if [ -f /usr/include/stdlib.h ]; then \
+		ln -s /usr/include/stdlib.h .; \
+	else \
+		if [ -f /usr/include/libc.h ]; then \
+			ln -s /usr/include/libc.h stdlib.h; \
+		else \
+			cp /dev/null stdlib.h; \
+		fi; \
+	fi
+
+# just for UNIOS-B
+time.h:
+	echo "#ifndef _LOCAL_TIME_H_" > time.h
+	echo "#define _LOCAL_TIME_H_" >> time.h
+	cat /usr/include/time.h >> time.h
+	echo "#endif" >> time.h
+
+sys/time.h:
+	-mkdir sys
+	echo "#ifndef _LOCAL_SYS_TIME_H_" > sys/time.h
+	echo "#define _LOCAL_SYS_TIME_H_" >> sys/time.h
+	cat /usr/include/sys/time.h >> sys/time.h
+	echo "#endif" >> sys/time.h
+
+NROFF=	nroff -h
+
+aliases.0: aliases.5
+	${NROFF} -mandoc aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} -mandoc mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} -mandoc newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} -mandoc sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Linux b/src/Makefiles/Makefile.Linux
new file mode 100644
index 0000000..0b91323
--- /dev/null
+++ b/src/Makefiles/Makefile.Linux
@@ -0,0 +1,137 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on Linux 0.99p10.
+#
+#  Linux doesn't really have standard places to install things, so this
+#  Makefile is likely to require a lot of customization.  Read it over
+#  carefully before proceeding.
+#
+#  If you don't want to install the Berkeley db package, remove -DNEWDB
+#  from DBMDEF and -ldb from LIBS (but please consider installing it; see
+#  the READ_ME file for details).
+#
+#  This assumes libc 4.7.0 or later.  If you have an earlier version of
+#  the library, you may need to add -lbsd to LIBS *or* add -DHASSNPRINTF=0
+#  to ENVDEF.  If you are running libc < 4.4.4, you must use -DHASSNPRINTF=0
+#  (or upgrade your libc -- an even better idea!).
+#
+#	@(#)Makefile.Linux	8.20 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+#  you may need to add -lresolv if you've installed BIND on
+#  your system (see the BIND section for linux in src/READ_ME)
+LIBS=	-ldb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+unistd.h:
+	cp /dev/null unistd.h
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Linux.ppc b/src/Makefiles/Makefile.Linux.ppc
new file mode 100644
index 0000000..e518f71
--- /dev/null
+++ b/src/Makefiles/Makefile.Linux.ppc
@@ -0,0 +1,139 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on Linux 0.99p10.
+#
+#  Linux doesn't really have standard places to install things, so this
+#  Makefile is likely to require a lot of customization.  Read it over
+#  carefully before proceeding.
+#
+#  If you don't want to install the Berkeley db package, remove -DNEWDB
+#  from DBMDEF and -ldb from LIBS (but please consider installing it; see
+#  the READ_ME file for details).
+#
+#  This assumes libc 4.7.0 or later.  If you have an earlier version of
+#  the library, you may need to add -lbsd to LIBS *or* add -DHASSNPRINTF=0
+#  to ENVDEF.  If you are running libc < 4.4.4, you must use -DHASSNPRINTF=0
+#  (or upgrade your libc -- an even better idea!).
+#
+#  This Makefile contributed by Paul DuBois <dubois@primate.wisc.edu>.
+#
+#	@(#)Makefile.Linux.ppc	8.4 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+#  you may need to add -lresolv if you've installed BIND on
+#  your system (see the BIND section for linux in src/READ_ME)
+LIBS=	-ldb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+unistd.h:
+	cp /dev/null unistd.h
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Mach386 b/src/Makefiles/Makefile.Mach386
new file mode 100644
index 0000000..c1c4335
--- /dev/null
+++ b/src/Makefiles/Makefile.Mach386
@@ -0,0 +1,113 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.Mach386	8.10 (Berkeley) 8/7/97
+#
+
+CC=	gcc
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-ldbm
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.NCR.MP-RAS.2.x b/src/Makefiles/Makefile.NCR.MP-RAS.2.x
new file mode 100644
index 0000000..65ba6ac
--- /dev/null
+++ b/src/Makefiles/Makefile.NCR.MP-RAS.2.x
@@ -0,0 +1,114 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	NCR 3000 support from Kevin Darcy <kevin@tech.mis.cfc.com>
+#		and Tom Moore <tmoore@fievel.DaytonOH.NCR.COM>.
+#
+#	@(#)Makefile.NCR.MP-RAS.2.x	8.17 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O2
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DNCR_MP_RAS2
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/include -I/usr/ucbinclude
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/ucblib
+
+# libraries required on your system
+LIBS=	-lnsl -lnet -lsocket -lelf -lc -lucb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	/usr/ucb/nroff -h
+#NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.NCR.MP-RAS.3.x b/src/Makefiles/Makefile.NCR.MP-RAS.3.x
new file mode 100644
index 0000000..aa63826
--- /dev/null
+++ b/src/Makefiles/Makefile.NCR.MP-RAS.3.x
@@ -0,0 +1,114 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	NCR SVR4 MP-RAS 3.x support from
+#	Tom Moore <tmoore@fievel.DaytonOH.NCR.COM>.
+#
+#	@(#)Makefile.NCR.MP-RAS.3.x	8.7 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O2
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DNCR_MP_RAS3
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/include -I/usr/ucbinclude
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/ucblib
+
+# libraries required on your system
+LIBS=	-lsocket -lnsl -lresolv -lelf -lc -lucb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	/usr/ucb/nroff -h
+#NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.NEWS-OS.4.x b/src/Makefiles/Makefile.NEWS-OS.4.x
new file mode 100644
index 0000000..0a76a1f
--- /dev/null
+++ b/src/Makefiles/Makefile.NEWS-OS.4.x
@@ -0,0 +1,120 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.NEWS-OS.4.x	8.9 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# native compiler on RISC OS requires -Olimit to optimize properly
+#CC=	cc -Olimit 1100
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-lmld
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE= limits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+limits.h:
+	touch limits.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.NEWS-OS.6.x b/src/Makefiles/Makefile.NEWS-OS.6.x
new file mode 100644
index 0000000..9f257af
--- /dev/null
+++ b/src/Makefiles/Makefile.NEWS-OS.6.x
@@ -0,0 +1,134 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on NEWS-OS 6.0.3
+#
+#	@(#)Makefile.NEWS-OS.6.x	8.8 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	
+
+# make sure that /bin/cc is used (do not use /usr/ucb/cc).
+CC=	/bin/cc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+# define SYSLOG_BUFSIZE=256 if you have a problem on syslog buffer size
+# define SPT_TYPE=SPT_NONE if you are using NEWS-OS 6.0.1
+ENVDEF= -DSYSLOG_BUFSIZE=256 # -DSPT_TYPE=SPT_NONE
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+#  -lndbm can be used instead of ndbm.o with NEWS-OS 6.1 or later
+LIBS=   ndbm.o -lelf -lsocket -lnsl -lresolv # -l44bsd	# with NDBM
+#LIBS=  -lelf -lsocket -lnsl -ldb -lresolv # -l44bsd	# with NEWDB
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h ndbm.o
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	ln -s /usr/ucbinclude/sysexits.h .
+
+ndbm.o:
+	if [ ! -f /usr/include/ndbm.h ]; then \
+		ln -s /usr/ucbinclude/ndbm.h .; \
+	fi; \
+	if [ -f /usr/lib/libndbm.a ]; then \
+		ar x /usr/lib/libndbm.a ndbm.o; \
+	else \
+		ar x /usr/ucblib/libucb.a ndbm.o; \
+	fi;
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.NeXT.2.x b/src/Makefiles/Makefile.NeXT.2.x
new file mode 100644
index 0000000..85c3e2e
--- /dev/null
+++ b/src/Makefiles/Makefile.NeXT.2.x
@@ -0,0 +1,123 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on NeXT 2.1.
+#
+#	@(#)Makefile.NeXT.2.x	8.13 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS -DNETINFO
+#DBMDEF=	-DNDBM -DNEWDB -DNIS -DNETINFO
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DNeXT
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+LIBS=	-ldbm
+#LIBS=	-ldbm -ldb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/sendmail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=	unistd.h dirent.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF} ${COPTS}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+unistd.h:
+	cp /dev/null unistd.h
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -s -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null  ${STDIR}/sendmail.st
+	chown ${BINOWN}.${BINGRP} ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.NeXT.3.x b/src/Makefiles/Makefile.NeXT.3.x
new file mode 100644
index 0000000..3f976e8
--- /dev/null
+++ b/src/Makefiles/Makefile.NeXT.3.x
@@ -0,0 +1,131 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on NEXTSTEP 3.3.
+#
+#	@(#)Makefile.NeXT.3.x	8.8 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# NEXTSTEP 3.1 and 3.2 only support m68k and i386
+#ARCH=	-arch m68k -arch i386 -arch hppa -arch sparc
+#ARCH=	-arch m68k -arch i386
+ARCH=	${RC_CFLAGS}
+
+COPTS=	-Wno-precomp -pipe
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+#	-DNETINFO -- include NETINFO support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS -DNETINFO
+#DBMDEF=	-DNDBM -DNEWDB -DNIS -DNETINFO
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DNeXT
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+LIBS=	-ldbm
+#LIBS=	-ldbm -ldb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/sendmail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=	unistd.h dirent.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF} ${COPTS} ${ARCH}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} ${ARCH} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+unistd.h:
+	cp /dev/null unistd.h
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -s -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null  ${STDIR}/sendmail.st
+	chown ${BINOWN}.${BINGRP} ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${BEFORE} ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.NetBSD b/src/Makefiles/Makefile.NetBSD
new file mode 100644
index 0000000..9635243
--- /dev/null
+++ b/src/Makefiles/Makefile.NetBSD
@@ -0,0 +1,49 @@
+#
+#  NetBSD Makefile
+#
+#	@(#)Makefile.NetBSD	8.7 (Berkeley) 8/7/97
+#	@Id: Makefile.NetBSD,v 1.3 1994/02/01 05:33:44 glass Exp $
+#
+
+PROG=	sendmail
+
+# define the database format to use for aliases et al.  Can be -DNEWDB (for
+# the new BSD database package -- this is preferred) or -DNDBM for the NDBM
+# database package.  The old putrescent V7 DBM package is no longer
+# supported.
+# You can define both NEWDB and NDBM during a transition period; old
+# databases are read, but the new format will be used on any rebuilds.  On
+# really gnarly systems, you can set this to null; it will crawl like a high
+# spiral snail, but it will work.
+DBMDEF=	-DNEWDB -DNIS
+
+CFLAGS+=-I${.CURDIR} ${DBMDEF} -DNETISO
+
+SRCS=	alias.c arpadate.c clock.c collect.c conf.c convtime.c daemon.c \
+	deliver.c domain.c envelope.c err.c headers.c macro.c main.c map.c \
+	mci.c mime.c parseaddr.c queue.c readcf.c recipient.c safefile.c \
+	savemail.c srvrsmtp.c stab.c stats.c sysexits.c trace.c udb.c \
+	usersmtp.c util.c version.c
+MAN=	aliases.5 mailq.1 newaliases.1 sendmail.8
+#MAN1=	mailq.0 newaliases.0
+#MAN5=	aliases.0
+#MAN8=	sendmail.0 
+LINKS=	/usr/sbin/sendmail /usr/bin/newaliases \
+	/usr/sbin/sendmail /usr/bin/mailq \
+	/usr/sbin/sendmail /usr/bin/hoststat \
+	/usr/sbin/sendmail /usr/bin/purgestat
+INSTALL=install
+BINDIR=	/usr/sbin
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+beforeinstall:
+#	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+#	    ${DESTDIR}/etc/sendmail.fc
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${DESTDIR}/var/log/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/sendmail.hf \
+	    ${DESTDIR}/usr/share/misc
+
+.include <bsd.prog.mk>
diff --git a/src/Makefiles/Makefile.NonStop-UX b/src/Makefiles/Makefile.NonStop-UX
new file mode 100644
index 0000000..56f3f18
--- /dev/null
+++ b/src/Makefiles/Makefile.NonStop-UX
@@ -0,0 +1,117 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	Tandem Support from Rick McCarty <mccarty@mpd.tandem.com>.
+#	(I don't think this actually compiles cleanly -- I had trouble
+#	 integrating Rick's changes.  EPA 6/94)
+#
+#	@(#)Makefile.NonStop-UX	8.9 (Berkeley) 8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DNonStop_UX_BXX -D_SVID
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/include -I/usr/ucbinclude
+
+# library directories
+LIBDIRS=-L/usr/ucblib
+
+# libraries required on your system
+LIBS=	-lresolv -lsocket -lnsl -lelf -lucb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.OSF1 b/src/Makefiles/Makefile.OSF1
new file mode 100644
index 0000000..848d084
--- /dev/null
+++ b/src/Makefiles/Makefile.OSF1
@@ -0,0 +1,119 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on OSF/1 1.3
+#
+#	@(#)Makefile.OSF1	8.12 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# native compiler requires -Olimit to optimize properly
+CC=	cc -Olimit 1000
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib -L/usr/shlib -L/usr/lib
+
+# libraries required on your system
+#  delete -lresolv if you are not running BIND 4.9.x
+LIBS=	-ldbm -ldb -lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/adm/sendmail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/share/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional link flags
+#LDADD=	-non_shared
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${BINDIR}/newaliases ${BINDIR}/mailq \
+	${BINDIR}/hoststat ${BINDIR}/purgestat
+INSTALL=installbsd
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDADD} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN}.${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+	rm -f /usr/sbin/smtpd
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.OpenBSD b/src/Makefiles/Makefile.OpenBSD
new file mode 100644
index 0000000..22b80da
--- /dev/null
+++ b/src/Makefiles/Makefile.OpenBSD
@@ -0,0 +1,48 @@
+#
+#  OpenBSD Makefile
+#
+#	@(#)Makefile.OpenBSD	8.2 (Berkeley) 8/7/97
+#
+
+PROG=	sendmail
+
+# define the database format to use for aliases et al.  Can be -DNEWDB (for
+# the new BSD database package -- this is preferred) or -DNDBM for the NDBM
+# database package.  The old putrescent V7 DBM package is no longer
+# supported.
+# You can define both NEWDB and NDBM during a transition period; old
+# databases are read, but the new format will be used on any rebuilds.  On
+# really gnarly systems, you can set this to null; it will crawl like a high
+# spiral snail, but it will work.
+DBMDEF=	-DNEWDB -DNIS
+
+CFLAGS+=-I${.CURDIR} ${DBMDEF} -DNETISO
+
+SRCS=	alias.c arpadate.c clock.c collect.c conf.c convtime.c daemon.c \
+	deliver.c domain.c envelope.c err.c headers.c macro.c main.c map.c \
+	mci.c mime.c parseaddr.c queue.c readcf.c recipient.c safefile.c \
+	savemail.c srvrsmtp.c stab.c stats.c sysexits.c trace.c udb.c \
+	usersmtp.c util.c version.c
+MAN=	aliases.5 mailq.1 newaliases.1 sendmail.8
+#MAN1=	mailq.0 newaliases.0
+#MAN5=	aliases.0
+#MAN8=	sendmail.0 
+LINKS=	/usr/sbin/sendmail /usr/bin/newaliases \
+	/usr/sbin/sendmail /usr/bin/mailq \
+	/usr/sbin/sendmail /usr/bin/hoststat \
+	/usr/sbin/sendmail /usr/bin/purgestat
+INSTALL=install
+BINDIR=	/usr/sbin
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+beforeinstall:
+#	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+#	    ${DESTDIR}/etc/sendmail.fc
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${DESTDIR}/var/log/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/sendmail.hf \
+	    ${DESTDIR}/usr/share/misc
+
+.include <bsd.prog.mk>
diff --git a/src/Makefiles/Makefile.PTX b/src/Makefiles/Makefile.PTX
new file mode 100644
index 0000000..a833582
--- /dev/null
+++ b/src/Makefiles/Makefile.PTX
@@ -0,0 +1,118 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	For Sequent DYNIX/ptx.
+#
+#	From Tim "Pinball Wizard" Wright <timw@sequent.com>.
+#
+#	@(#)Makefile.PTX	8.12 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-g
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+INCDIRS=
+
+# loader options
+LDOPTS=
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+LIBDIRS=
+
+# libraries required on your system
+#LIBS=	-ldb -ldbm
+LIBS=	-lsocket -linet -lelf -lnsl -lseq
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: $& ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Paragon b/src/Makefiles/Makefile.Paragon
new file mode 100644
index 0000000..4eafb43
--- /dev/null
+++ b/src/Makefiles/Makefile.Paragon
@@ -0,0 +1,116 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on OSF/1 1.3
+#
+#	@(#)Makefile.Paragon	8.9 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib -L/usr/shlib -L/usr/lib
+
+# libraries required on your system
+LIBS=	-ldbm
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/adm/sendmail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/share/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional link flags
+#LDADD=	-non_shared
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${BINDIR}/newaliases ${BINDIR}/mailq \
+	${BINDIR}/hoststat ${BINDIR}/purgestat
+INSTALL=installbsd
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDADD} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+	rm -f /usr/sbin/smtpd
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.PowerUX b/src/Makefiles/Makefile.PowerUX
new file mode 100644
index 0000000..1ccb2d3
--- /dev/null
+++ b/src/Makefiles/Makefile.PowerUX
@@ -0,0 +1,126 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.PowerUX	8.3 (Berkeley) 8/7/97
+#
+#  Harris Nighthawk 6000 series (nh6000) PowerUX Makefile
+#  Bob Miorelli, Pratt & Whitney   <miorelli@pweh.com>
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+CC=	cc
+DESTDIR=/etc/mail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D__svr4__
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+LIBS=	-Bstatic -ldb -lresolv -lsocket -lnsl -lelf -lgen
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	/usr/local/bin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${BINDIR}/newaliases ${BINDIR}/mailq
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	nroff -h
+MANDOC=	-man
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	cp sendmail ${DESTDIR}
+	chown ${BINOWN} ${DESTDIR}/sendmail
+	chgrp ${BINGRP} ${DESTDIR}/sendmail
+	chmod ${BINMODE} ${DESTDIR}/sendmail
+
+	for i in ${LINKS}; do rm -f $$i; ln -s ${DESTDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	chmod 0644 ${STDIR}/sendmail.st
+
+	cp sendmail.hf ${STDIR}/sendmail.hf
+	chown ${BINOWN} ${STDIR}/sendmail.hf
+	chgrp ${BINGRP} ${STDIR}/sendmail.hf
+	chmod 0444 ${STDIR}/sendmail.hf
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.RISCos b/src/Makefiles/Makefile.RISCos
new file mode 100644
index 0000000..5d803bb
--- /dev/null
+++ b/src/Makefiles/Makefile.RISCos
@@ -0,0 +1,126 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	For Mips RISC/os 4.52.
+#
+#	@(#)Makefile.RISCos	8.15 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# be sure we are compiling in BSD mode
+CC=	cc -systype bsd43 -Olimit 900
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DRISCOS
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-lmld
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=	stdlib.h dirent.h unistd.h stddef.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/bsd43/bin/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+stdlib.h stddef.h:
+	cp /dev/null $@
+
+unistd.h:
+	echo "typedef unsigned short	mode_t;" > unistd.h
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.RISCos.4_0 b/src/Makefiles/Makefile.RISCos.4_0
new file mode 100644
index 0000000..d0b28b2
--- /dev/null
+++ b/src/Makefiles/Makefile.RISCos.4_0
@@ -0,0 +1,132 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+# For Mips RISC/os 4.0, 4.01.  Contributed by Paul DuBois
+# <dubois@primate.wisc.edu>, based on Makefile for RISC/os 4.50
+# by Harlan Stenn.  I have also found it necessary to set TimeZoneSpec
+# in the *.mc file, or sendmail doesn't get the right offset from GMT.
+#
+#	@(#)Makefile.RISCos.4_0	8.2 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# be sure we are compiling in BSD mode
+CC=	cc -systype bsd43 -Olimit 900
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DRISCOS -DRISCOS_4_0
+
+# see also conf.h for additional compilation flags
+
+# include directories
+#INCDIRS=-I/usr/sww/include
+
+# library directories
+#LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-lmld
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=	stdlib.h dirent.h unistd.h stddef.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/etc/mipsinstall
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+stdlib.h stddef.h:
+	cp /dev/null $@
+
+unistd.h:
+	echo "typedef unsigned short	mode_t;" > unistd.h
+
+dirent.h:
+	echo "#include <sys/dir.h>" > dirent.h
+	echo "#define dirent	direct" >> dirent.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} -f sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	cp /dev/null ${STDIR}/sendmail.st
+	chmod 644 ${STDIR}/sendmail.st
+	chown ${BINOWN} ${STDIR}/sendmail.st
+	chgrp ${BINGRP} ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 -f sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
+
diff --git a/src/Makefiles/Makefile.SCO b/src/Makefiles/Makefile.SCO
new file mode 100644
index 0000000..f84fe2f
--- /dev/null
+++ b/src/Makefiles/Makefile.SCO
@@ -0,0 +1,110 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on SCO.
+#
+#	@(#)Makefile.SCO	8.12 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D_SCO_unix_
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lsocket -lprot_s -lx -lc_s
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=	
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SCO.4.2 b/src/Makefiles/Makefile.SCO.4.2
new file mode 100644
index 0000000..5a868e9
--- /dev/null
+++ b/src/Makefiles/Makefile.SCO.4.2
@@ -0,0 +1,110 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  Tested on SCO rel 4.2 by Marian Durkovic <marian@svf.stuba.sk>.
+#
+#	@(#)Makefile.SCO.4.2	8.6 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D_SCO_unix_4_2
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lsocket -lndbm -lprot_s -lx -lc_s
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=	
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SCO.5.x b/src/Makefiles/Makefile.SCO.5.x
new file mode 100644
index 0000000..8c19e3e
--- /dev/null
+++ b/src/Makefiles/Makefile.SCO.5.x
@@ -0,0 +1,111 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  Tested on SCO OpenServer 5 by Keith Reynolds <keithr@sco.COM>.
+#
+#	@(#)Makefile.SCO.5.x	8.6 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lsocket -lndbm -lprot -lcurses -lm -lx
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=	
+
+###################  end of user configuration flags  ######################
+
+CC=	cc -b elf
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SINIX b/src/Makefiles/Makefile.SINIX
new file mode 100644
index 0000000..99e6ab8
--- /dev/null
+++ b/src/Makefiles/Makefile.SINIX
@@ -0,0 +1,115 @@
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	Contributed by Gerald Rinske <Gerald.Rinske@mch.sni.de>.
+#
+#	@(#)Makefile.SINIX	8.4 (Berkeley) 9/13/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+CC=	/usr/bin/cc
+#DESTDIR=/usr/local/sendmail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D__svr4__
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+LIBS=	-ldb -lsocket -lnsl -lresolv -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	nroff -h
+#NROFF=	groff -Tascii
+#MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SMP_DC.OSx.NILE b/src/Makefiles/Makefile.SMP_DC.OSx.NILE
new file mode 100644
index 0000000..d301bde
--- /dev/null
+++ b/src/Makefiles/Makefile.SMP_DC.OSx.NILE
@@ -0,0 +1,118 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	For Pyramid NILE running DC/OSx.
+#
+#	Contributed by Earle F. Ake <akee@wpdis03.wpafb.af.mil>.
+#
+#	@(#)Makefile.SMP_DC.OSx.NILE	8.3 (Berkeley) 3/28/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+CC=	cc
+#DESTDIR=/usr/local/sendmail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D__svr4__ -DDCOSx
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-ldb -lresolv -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/share/lib/mail
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4511
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	nroff -h
+#NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SVR4 b/src/Makefiles/Makefile.SVR4
new file mode 100644
index 0000000..bf485d1
--- /dev/null
+++ b/src/Makefiles/Makefile.SVR4
@@ -0,0 +1,118 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	Based on a Makefile for Dell SVR4 Issue 2.2 from Kimmo Suominen
+#	<kim@grendel.lut.fi> -- I haven't tested this myself.  It may
+#	work on other SVR4 ports.
+#
+#	@(#)Makefile.SVR4	8.10 (Berkeley) 8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+CC=	gcc
+#DESTDIR=/usr/local/sendmail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB -DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D__svr4__
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-ldb -ldbm -lresolv -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS b/src/Makefiles/Makefile.SunOS
new file mode 100644
index 0000000..01cff7f
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS
@@ -0,0 +1,117 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	This has been tested on SunOS 4.1.[12].
+#	For SunOS 4.0.3, add -DSUNOS403 to the ENVDEF macro, and
+#		create empty files stdlib.h and stddef.h in your
+#		compile directory.
+#
+#	@(#)Makefile.SunOS	8.12 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+# need to add -DSUNOS403 if you are on a SunOS 4.0.3 system
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=	-Bstatic
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-ldb -lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS.4.0 b/src/Makefiles/Makefile.SunOS.4.0
new file mode 100644
index 0000000..f001e8d
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS.4.0
@@ -0,0 +1,119 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any significant work on sendmail).
+#
+#	You may find you need to find versions of some routines
+#	such as strcasecmp in order to link this on SunOS 4.0.3.
+#
+#	@(#)Makefile.SunOS.4.0	8.14 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DSUNOS403
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=	-Bstatic
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-ldb -lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+BEFORE=	stdlib.h stddef.h limits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+stddef.h stdlib.h limits.h:
+	cp /dev/null $@
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS.5.1 b/src/Makefiles/Makefile.SunOS.5.1
new file mode 100644
index 0000000..57122af
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS.5.1
@@ -0,0 +1,124 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any significant work on sendmail).
+#
+#  This has been tested on Solaris 2.1 and 2.2.  It DOES NOT WORK on
+#  versions of Solaris after 2.2.
+#
+#	@(#)Makefile.SunOS.5.1	8.21 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# warning: do not use -O with versions of gcc prior to 2.6
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DSOLARIS=20100
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+LIBS=	-lresolv -l44bsd -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc/mail
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	if [ -r /usr/ucbinclude/sysexits.h ]; \
+	then \
+		ln -s /usr/ucbinclude/sysexits.h; \
+	fi
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS.5.2 b/src/Makefiles/Makefile.SunOS.5.2
new file mode 100644
index 0000000..57122af
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS.5.2
@@ -0,0 +1,124 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any significant work on sendmail).
+#
+#  This has been tested on Solaris 2.1 and 2.2.  It DOES NOT WORK on
+#  versions of Solaris after 2.2.
+#
+#	@(#)Makefile.SunOS.5.1	8.21 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# warning: do not use -O with versions of gcc prior to 2.6
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DSOLARIS=20100
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+LIBS=	-lresolv -l44bsd -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc/mail
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	if [ -r /usr/ucbinclude/sysexits.h ]; \
+	then \
+		ln -s /usr/ucbinclude/sysexits.h; \
+	fi
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS.5.3 b/src/Makefiles/Makefile.SunOS.5.3
new file mode 100644
index 0000000..6628c7f
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS.5.3
@@ -0,0 +1,123 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on Solaris 2.3.
+#
+#	@(#)Makefile.SunOS.5.3	8.21 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# warning: do not use -O with versions of gcc prior to 2.6
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS -DNISPLUS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DSOLARIS=20300
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+LIBS=	-lresolv -l44bsd -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc/mail
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	if [ -r /usr/ucbinclude/sysexits.h ]; \
+	then \
+		ln -s /usr/ucbinclude/sysexits.h; \
+	fi
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS.5.4 b/src/Makefiles/Makefile.SunOS.5.4
new file mode 100644
index 0000000..32c8558
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS.5.4
@@ -0,0 +1,126 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on Solaris 2.4.
+#
+#	@(#)Makefile.SunOS.5.4	8.23 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# warning: do not use -O with versions of gcc prior to 2.6
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+#	-DLDAPMAP -- include LDAP support (requires Umich ldap & lber libraries)
+#	-DSUNET_ID -- include Stanford LDAP tweaks
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS -DNISPLUS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DSOLARIS=20400
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+#  add    -lldap -llber -lkrb -ldes for LDAP support
+LIBS=	-lresolv -l44bsd -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc/mail
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	if [ -r /usr/include/sysexits.h ]; \
+	then \
+		ln -s /usr/include/sysexits.h; \
+	fi
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS.5.5 b/src/Makefiles/Makefile.SunOS.5.5
new file mode 100644
index 0000000..9322440
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS.5.5
@@ -0,0 +1,124 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on Solaris 2.5.
+#
+#	@(#)Makefile.SunOS.5.5	8.12 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# warning: do not use -O with versions of gcc prior to 2.6
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS -DNISPLUS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DSOLARIS=20500
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+#  add -ldb if you add -DNEWDB above (in DBMDEF)
+LIBS=	-lresolv -l44bsd -lsocket -lnsl -lkstat
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc/mail
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	if [ -r /usr/include/sysexits.h ]; \
+	then \
+		ln -s /usr/include/sysexits.h; \
+	fi
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.SunOS.5.6 b/src/Makefiles/Makefile.SunOS.5.6
new file mode 100644
index 0000000..872a207
--- /dev/null
+++ b/src/Makefiles/Makefile.SunOS.5.6
@@ -0,0 +1,123 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on Solaris 2.6.
+#
+#	@(#)Makefile.SunOS.5.6	8.4 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+# warning: do not use -O with versions of gcc prior to 2.6
+O=	-O
+
+CC=	gcc
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS -DNISPLUS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DSOLARIS=20600
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+LIBS=	-lresolv -l44bsd -lsocket -lnsl -lkstat
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc/mail
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/bin/newaliases ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/bin/hoststat ${DESTDIR}/usr/bin/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	if [ -r /usr/include/sysexits.h ]; \
+	then \
+		ln -s /usr/include/sysexits.h; \
+	fi
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Titan b/src/Makefiles/Makefile.Titan
new file mode 100644
index 0000000..e46307d
--- /dev/null
+++ b/src/Makefiles/Makefile.Titan
@@ -0,0 +1,120 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.Titan	8.10 (Berkeley) 8/7/97
+#
+
+# put the compiler in BSD mode
+CC=	cc -43
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-ldbm
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/share/misc
+
+# additional .o files needed
+OBJADD=
+
+# additional pseudo-sources needed
+BEFORE=	stddef.h stdlib.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+stddef.h stdlib.h:
+	cp /dev/null $@
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.ULTRIX b/src/Makefiles/Makefile.ULTRIX
new file mode 100644
index 0000000..c44e75e
--- /dev/null
+++ b/src/Makefiles/Makefile.ULTRIX
@@ -0,0 +1,118 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	This has been tested on Ultrix 4.2A and 4.3A.
+#
+#	@(#)Makefile.ULTRIX	8.15 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# native compiler requires -Olimit to optimize properly
+CC=	cc -Olimit 950
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+# On Ultrix 4.4 and later, you can set IDENTPROTO=1.
+ENVDEF=	-DIDENTPROTO=0
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -lresolv and -l44bsd if you are not running BIND 4.9.x
+LIBS=	-ldb -lresolv -l44bsd
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.UMAX b/src/Makefiles/Makefile.UMAX
new file mode 100644
index 0000000..b74b4ea
--- /dev/null
+++ b/src/Makefiles/Makefile.UMAX
@@ -0,0 +1,120 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	This has been tested on Encore UMAX V
+#
+#	@(#)Makefile.UMAX	8.10 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DUMAXV
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lyp -lrpc
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# things to do before compilation
+BEFORE=	stddef.h
+
+stddef.h:
+	echo "#define _STDDEF_H" > stddef.h
+	chmod 444 stddef.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.UNICOS b/src/Makefiles/Makefile.UNICOS
new file mode 100644
index 0000000..f3b273c
--- /dev/null
+++ b/src/Makefiles/Makefile.UNICOS
@@ -0,0 +1,118 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#       Should work with UNICOS 8.0. Note that you must also acquire
+#       gdbm, as UNICOS does not have ndbm, and I had no luck at all
+#	getting the Berkeley DB package to compile.
+#		Douglas K. Rand, University of North Dakota
+#		rand@aero.und.nodak.edu
+#
+#       @(#)Makefile.UNICOS	8.8	(Berkeley)	8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=  /bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=      -O
+
+
+# define the database mechanism used for alias lookups:
+#       -DNDBM -- use new DBM
+#       -DNEWDB -- use new Berkeley DB
+#       -DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF= 
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF= -DUNICOS
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+LIBS=
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR= ${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=  ${DESTDIR}/etc/mail
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=  ${DESTDIR}/etc/mail
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.UNIX_SV.4.x.i386 b/src/Makefiles/Makefile.UNIX_SV.4.x.i386
new file mode 100644
index 0000000..9a0b50b
--- /dev/null
+++ b/src/Makefiles/Makefile.UNIX_SV.4.x.i386
@@ -0,0 +1,119 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	UnixWare 1.1 Makefile from John Warburton <jwarb@SACBH.com.au>.
+#
+#  For UnixWare 2.x, use -DUNIXWARE2 in ENVDEF in place of -DUNIXWARE.
+#
+#	@(#)Makefile.UNIX_SV.4.x.i386	8.9 (Berkeley) 8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+CC=	gcc
+#DESTDIR=/usr/local/sendmail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNEWDB -DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-D__svr4__ -DUNIXWARE
+#ENVDEF=	-D__svr4__ -DUNIXWARE2
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	-lc -ldbm -lresolv -lsocket -lnsl -lgen -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.UX4800 b/src/Makefiles/Makefile.UX4800
new file mode 100644
index 0000000..be1e748
--- /dev/null
+++ b/src/Makefiles/Makefile.UX4800
@@ -0,0 +1,130 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  This has been tested on NEC UX4800.
+#  Contributed by Kazuhisa Shimizu <shimizu@lang.csd.nes.nec.co.jp>.
+#
+#	@(#)Makefile.UX4800	8.6 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# make sure that /usr/abiccs/bin/cc is used (do not use /usr/ucb/cc).
+#CC=	/bin/cc -KOlimit=900
+CC=	/usr/abiccs/bin/cc -KOlimit=900
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS		# without NEWDB
+#DBMDEF=	-DNEWDB -DNDBM -DNIS	# with NEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=	-DHASSNPRINTF=1
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/local/include
+
+# library directories
+LIBDIRS=-L/usr/local/lib
+
+# libraries required on your system
+#  delete -l44bsd if you are not running BIND 4.9.x
+LIBS=	-lsocket -lnsl -lelf -lresolv # -l44bsd # without NEWDB
+#LIBS=	-lsocket -lnsl -lelf -ldb -lresolv # -l44bsd   # with NEWDB
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/var/ucblib
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	sysexits.h ndbm.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	root
+BINGRP=	sys
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+sysexits.h:
+	echo '#ifndef _LOCAL_SYSEXITS_H_' > sysexits.h;
+	echo '#define _LOCAL_SYSEXITS_H_' >> sysexits.h;
+	cat /usr/abiccs/ucbinclude/sysexits.h >> sysexits.h;
+	echo '#endif /* _LOCAL_SYSEXITS_H_ */' >> sysexits.h;
+
+ndbm.h:
+	sed 's/void/char/' /usr/abiccs/include/ndbm.h > ndbm.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.UXPDS.V10 b/src/Makefiles/Makefile.UXPDS.V10
new file mode 100644
index 0000000..b2cdf53
--- /dev/null
+++ b/src/Makefiles/Makefile.UXPDS.V10
@@ -0,0 +1,142 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	Contributed by Diego R. Lopez <drlopez@cica.es>.  Based on
+#	Makefile.SVR4.  I haven't tested this myself.
+#
+#	Additional changes for UXP/DS V20L10 (SVR4.2) from Fumio Moriya
+#	and Toshiaki Nomura of the Fujitsu FreeSoftware Group
+#	<dsfrsoft@oai6.yk.fujitsu.co.jp>.
+#
+#	@(#)Makefile.UXPDS.V10	8.9 (Berkeley) 8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+CC=	/usr/ccs/bin/cc
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+#DESTDIR=/usr/local/sendmail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF= -DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+# 
+ENVDEF= -DUXPDS=10
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/include -I/usr/ucbinclude
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	/usr/ucblib/libdbm.a /usr/ucblib/libucb.a -lresolv -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR= ${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# location and mode for man pages
+MAN1=	/usr/local/man/man1
+MAN4=	/usr/local/man/man4
+MANMODE=444
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS= -I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+BINOWN= root
+BINGRP= mail
+BINMODE=4555
+INSTALL=/usr/ucb/install
+
+ALL=	sendmail man-pages
+
+all: ${ALL}
+
+man-pages: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	groff -Tascii
+
+aliases.0: aliases.5
+	${NROFF} -mandoc aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} -mandoc mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} -mandoc newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} -mandoc sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: ${MAN1} ${MAN4} aliases.0 mailq.0 newaliases.0 sendmail.0
+	cp aliases.0 ${MAN4}/aliases.4
+	chmod ${MANMODE} ${MAN4}/aliases.4
+	cp mailq.0 ${MAN1}/mailq.1m
+	chmod ${MANMODE} ${MAN1}/mailq.1m
+	cp newaliases.0 ${MAN1}/newaliases.1m
+	chmod ${MANMODE} ${MAN1}/newaliases.1m
+	cp sendmail.0 ${MAN1}/sendmail.1m
+	chmod ${MANMODE} ${MAN1}/sendmail.1m
+
+${MAN1} ${MAN4}:
+	mkdir -p $@
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.UXPDS.V20 b/src/Makefiles/Makefile.UXPDS.V20
new file mode 100644
index 0000000..51ce445
--- /dev/null
+++ b/src/Makefiles/Makefile.UXPDS.V20
@@ -0,0 +1,148 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	Contributed by Diego R. Lopez <drlopez@cica.es>.  Based on
+#	Makefile.SVR4.  I haven't tested this myself.
+#
+#	Additional changes for UXP/DS V20L10 (SVR4.2) from Fumio Moriya
+#	and Toshiaki Nomura of the Fujitsu FreeSoftware Group
+#	<dsfrsoft@oai6.yk.fujitsu.co.jp>.
+#
+#	@(#)Makefile.UXPDS.V20	8.9 (Berkeley) 8/7/97
+#
+
+# make sure the shell constructs below use the right shell
+SHELL=	/bin/sh
+
+CC=	/usr/ccs/bin/cc
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+#DESTDIR=/usr/local/sendmail
+
+# define the database mechanism used for alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF= -DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+# 
+ENVDEF= -DUXPDS=20
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=
+
+# library directories
+LIBDIRS=
+
+# libraries required on your system
+LIBS=	/usr/ucblib/libdbm.a -lresolv -lsocket -lnsl -lelf
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR= ${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/ucblib
+
+# location and mode for man pages
+MAN1=	/usr/local/man/man1
+MAN4=	/usr/local/man/man4
+MANMODE=444
+
+# additional .o files needed
+OBJADD=
+
+# things to be made before compilation begins
+BEFORE=	netinet/ip_var.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS= -I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+BINOWN= root
+BINGRP= mail
+BINMODE=4555
+INSTALL=/usr/ucb/install
+
+ALL=	sendmail man-pages
+
+all: ${ALL}
+
+man-pages: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${OBJS} ${LIBDIRS} ${LIBS}
+
+netinet/ip_var.h: netinet /usr/include/netinet/ip_var.h
+	sed '/ip_var_f.h/d' /usr/include/netinet/ip_var.h > netinet/ip_var.h
+
+netinet:
+	mkdir netinet
+
+NROFF=	groff -Tascii
+
+aliases.0: aliases.5
+	${NROFF} -mandoc aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} -mandoc mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} -mandoc newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} -mandoc sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: ${MAN1} ${MAN4} aliases.0 mailq.0 newaliases.0 sendmail.0
+	cp aliases.0 ${MAN4}/aliases.4
+	chmod ${MANMODE} ${MAN4}/aliases.4
+	cp mailq.0 ${MAN1}/mailq.1m
+	chmod ${MANMODE} ${MAN1}/mailq.1m
+	cp newaliases.0 ${MAN1}/newaliases.1m
+	chmod ${MANMODE} ${MAN1}/newaliases.1m
+	cp sendmail.0 ${MAN1}/sendmail.1m
+	chmod ${MANMODE} ${MAN1}/sendmail.1m
+
+${MAN1} ${MAN4}:
+	mkdir -p $@
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.Utah b/src/Makefiles/Makefile.Utah
new file mode 100644
index 0000000..f5e8965
--- /dev/null
+++ b/src/Makefiles/Makefile.Utah
@@ -0,0 +1,43 @@
+#	@(#)Makefile.Utah	8.6 (Berkeley) 8/7/97
+
+PROG=	sendmail
+
+# define the database format to use for aliases et al.  Can be -DNEWDB (for
+# the new BSD database package -- this is preferred) or -DNDBM for the NDBM
+# database package.  The old putrescent V7 DBM package is no longer
+# supported.
+# You can define both NEWDB and NDBM during a transition period; old
+# databases are read, but the new format will be used on any rebuilds.  On
+# really gnarly systems, you can set this to null; it will crawl like a high
+# spiral snail, but it will work.
+DBMDEF=	-DNEWDB -DNDBM -DOLD_NEWDB
+
+CFLAGS+=-I${.CURDIR} ${DBMDEF} -Dsetpgid=setpgrp
+
+SRCS=	alias.c arpadate.c clock.c collect.c conf.c convtime.c daemon.c \
+	deliver.c domain.c envelope.c err.c headers.c macro.c main.c map.c \
+	mci.c mime.c parseaddr.c queue.c readcf.c recipient.c safefile.c \
+	savemail.c srvrsmtp.c stab.c stats.c sysexits.c trace.c udb.c \
+	usersmtp.c util.c version.c
+DPADD=	${LIBDBM} ${LIBCOMPAT}
+LDADD=	
+MAN1=	mailq.0 newaliases.0
+MAN5=	aliases.0
+MAN8=	sendmail.0 
+LINKS=	${DESTDIR}/usr/sbin/sendmail ${DESTDIR}/usr/bin/newaliases \
+	${DESTDIR}/usr/sbin/sendmail ${DESTDIR}/usr/bin/mailq \
+	${DESTDIR}/usr/sbin/sendmail ${DESTDIR}/usr/bin/hoststat \
+	${DESTDIR}/usr/sbin/sendmail ${DESTDIR}/usr/bin/purgestat
+INSTALL=install
+BINDIR=	/usr/sbin
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+beforeinstall:
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${DESTDIR}/var/log/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/sendmail.hf \
+	    ${DESTDIR}/usr/share/misc
+
+.include <bsd.prog.mk>
diff --git a/src/Makefiles/Makefile.dgux b/src/Makefiles/Makefile.dgux
new file mode 100644
index 0000000..0ff26ff
--- /dev/null
+++ b/src/Makefiles/Makefile.dgux
@@ -0,0 +1,109 @@
+#
+#  Tested on DG/UX 5.4.2 by A. Bryan Curnutt <bryan@Stoner.COM>.
+#  Updated for DG/UX 5.4.3 by Mark T. Robinson <mtr@ornl.gov>.
+#
+#	@(#)Makefile.dgux	8.12 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+# use DGUX_5_4_2 for versions prior to 5.4.3.
+ENVDEF=-DDGUX
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+LIBS=	-ldbm
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/bin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	bin
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.dist b/src/Makefiles/Makefile.dist
new file mode 100644
index 0000000..44d9d9d
--- /dev/null
+++ b/src/Makefiles/Makefile.dist
@@ -0,0 +1,112 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.dist	8.20 (Berkeley) 8/7/97
+#
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNEWDB
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I/usr/sww/include
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/sww/lib
+
+# libraries required on your system
+#  delete -lresolv if you are not running BIND 4.9.x
+LIBS=	-ldb -ldbm -lresolv
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/sbin
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/share/misc
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=install
+BINOWN=	root
+BINGRP=	kmem
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.maxion b/src/Makefiles/Makefile.maxion
new file mode 100644
index 0000000..1047a66
--- /dev/null
+++ b/src/Makefiles/Makefile.maxion
@@ -0,0 +1,116 @@
+#
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#	@(#)Makefile.maxion	8.5 (Berkeley) 8/7/97
+#
+#	Concurrent Computer Corporation Maxion support contributed by
+#	Donald R. Laster Jr. <laster@access.digex.net>.
+#
+CC=/usr/ucb/cc
+#
+# use O=-O (usual) or O=-g (debugging)
+O=	-O
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+DBMDEF=	-DNDBM -DNIS
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF=-D__MAXION__
+
+# see also conf.h for additional compilation flags
+
+# include directories
+INCDIRS=-I ../
+
+# loader options
+LDOPTS=
+
+# library directories
+LIBDIRS=-L/usr/ucblib -L/usr/local/lib
+
+# libraries required on your system
+#  delete -lresolv if you are not running BIND 4.9.x
+LIBS=  -ldbm -lresolv -lgen -lucb
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/ucblib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/var/adm/log
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/etc/ucbmail
+
+# additional .o files needed
+OBJADD=
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/ucb/newaliases ${DESTDIR}/usr/ucb/mailq \
+	${DESTDIR}/usr/ucb/hoststat ${DESTDIR}/usr/ucb/purgestat
+INSTALL=/usr/ucb/install
+BINOWN=	smtp
+BINGRP=	mail
+BINMODE=4555
+
+ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+NROFF=	nroff -h
+#NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+install: install-sendmail install-docs
+
+install-sendmail: sendmail
+	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} sendmail ${BINDIR}
+	for i in ${LINKS}; do rm -f $$i; ln -s ${BINDIR}/sendmail $$i; done
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 644 /dev/null \
+	    ${STDIR}/sendmail.st
+	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m 444 sendmail.hf ${HFDIR}
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/Makefiles/Makefile.uts.systemV b/src/Makefiles/Makefile.uts.systemV
new file mode 100644
index 0000000..503d3a7
--- /dev/null
+++ b/src/Makefiles/Makefile.uts.systemV
@@ -0,0 +1,190 @@
+#  This Makefile is designed to work on the old "make" program.  It does
+#  not use the obj subdirectory.  It also does not install documentation
+#  automatically -- think of it as a quick start for sites that have the
+#  old make program (I recommend that you get and port the new make if you
+#  are going to be doing any signficant work on sendmail).
+#
+#  Makefile for an Amdahl 5890 running UTS System V 2.1.5 (SVr3)
+#  By Janet Jackson <janet@dialix.oz.au> 1994-11-24
+#	This has been tested on (uname -a output) uts bsuts systemV 2.1.5 5890
+#
+#	@(#)Makefile.uts.systemV	8.7 (Berkeley) 8/7/97
+#
+
+#  Sendmail 8 on UTS requires BIND 4.9's include files and lib44bsd and
+#  libresolv libraries.  The BIND version on UTS is much too old.
+#
+BINDPATH=../../../bind
+
+# use O=-O (usual) or O=-g (debugging)
+O=	-g
+
+# define the database mechanisms available for map & alias lookups:
+#	-DNDBM -- use new DBM
+#	-DNEWDB -- use new Berkeley DB
+#	-DNIS -- include NIS support
+# The really old (V7) DBM library is no longer supported.
+# See READ_ME for a description of how these flags interact.
+#
+# Getting NIS working on UTS is possible (I did it!) but awkward.
+# And forget it unless you're behind some sort of a firewall.
+#
+DBMDEF=	-DNIS -DNDBM
+
+# environment definitions (e.g., -D_AIX3)
+ENVDEF= -D_UTS
+
+# see also conf.h for additional compilation flags
+
+# include directories
+# To find new BIND header files. This path assumes we are using "makesendmail".
+INCDIRS=-I${BINDPATH}/include -I${BINDPATH}/compat/include
+
+# loader options
+LDOPTS=
+
+# library directories
+# To find new libresolv.a.  This path assumes we are using "makesendmail".
+LIBDIRS=-L${BINDPATH}/res -L${BINDPATH}/compat/lib
+
+# libraries required on your system
+LIBS= -lyp -lrpc -lresolv -l44bsd -lbsd -lsocket -la
+
+# location of sendmail binary (usually /usr/sbin or /usr/lib)
+BINDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.st file (usually /var/log or /usr/lib)
+STDIR=	${DESTDIR}/usr/lib
+
+# location of sendmail.hf file (usually /usr/share/misc or /usr/lib)
+HFDIR=	${DESTDIR}/usr/lib
+
+# additional .o files needed
+OBJADD=
+
+# things to do before compilation
+BEFORE=	stddef.h
+
+###################  end of user configuration flags  ######################
+
+CFLAGS=	-eft -I. $O ${INCDIRS} ${DBMDEF} ${ENVDEF}
+
+OBJS=	alias.o arpadate.o clock.o collect.o conf.o convtime.o daemon.o \
+	deliver.o domain.o envelope.o err.o headers.o macro.o main.o \
+	map.o mci.o mime.o parseaddr.o queue.o readcf.o recipient.o \
+	safefile.o savemail.o srvrsmtp.o stab.o stats.o sysexits.o \
+	trace.o udb.o usersmtp.o util.o version.o ${OBJADD}
+
+LINKS=	${DESTDIR}/usr/lib/newaliases ${DESTDIR}/usr/lib/mailq \
+	${DESTDIR}/usr/lib/hoststat ${DESTDIR}/usr/lib/purgestat
+BINOWN=	root
+BINGRP=	mail
+BINMODE=4555
+
+#ALL=	sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+ALL=	sendmail
+
+all: ${ALL}
+
+sendmail: ${BEFORE} ${OBJS}
+	${CC} -o sendmail ${LDOPTS} ${OBJS} ${LIBDIRS} ${LIBS}
+
+stddef.h:
+	echo "#include <sys/types.h>" > stddef.h
+
+#NROFF=	nroff -h
+NROFF=	groff -Tascii
+MANDOC=	-mandoc
+
+aliases.0: aliases.5
+	${NROFF} ${MANDOC} aliases.5 > aliases.0
+
+mailq.0: mailq.1
+	${NROFF} ${MANDOC} mailq.1 > mailq.0
+
+newaliases.0: newaliases.1
+	${NROFF} ${MANDOC} newaliases.1 > newaliases.0
+
+sendmail.0: sendmail.8
+	${NROFF} ${MANDOC} sendmail.8 > sendmail.0
+
+# new target to save original sendmail files before installation
+save-orig:
+	if [ -f ${BINDIR}/sendmail.orig ]; then \
+		echo "Error: original already saved" 1>&2; \
+		exit 1; \
+	else \
+		/bin/mv ${BINDIR}/sendmail ${BINDIR}/sendmail.orig; \
+		for i in ${LINKS}; do \
+			if [ -h $$i ]; then \
+				/bin/mv $$i $$i.orig; \
+			fi; \
+		done; \
+		if [ -f ${STDIR}/sendmail.st ]; then \
+			/bin/mv ${STDIR}/sendmail.st ${STDIR}/sendmail.st.orig; \
+		fi; \
+		if [ -f ${HFDIR}/sendmail.hf ]; then \
+			/bin/mv ${HFDIR}/sendmail.hf ${HFDIR}/sendmail.hf.orig; \
+		fi; \
+		echo "Now run 'make install'." 1>&2; \
+		echo "(To back out, run 'make backout'.)" 1>&2; \
+	fi
+
+# new target to back out, ie, put back original files
+backout:
+	if [ ! -f ${BINDIR}/sendmail.orig ]; then \
+		echo "Error: original was not saved" 1>&2; \
+		exit 1; \
+	else \
+		/bin/mv ${BINDIR}/sendmail.orig ${BINDIR}/sendmail; \
+		for i in ${LINKS}; do \
+			if [ -h $$i.orig ]; then \
+				/bin/mv $$i.orig $$i; \
+			else \
+				rm -f $$i; \
+			fi; \
+		done; \
+		if [ -f ${STDIR}/sendmail.st.orig ]; then \
+			/bin/mv ${STDIR}/sendmail.st.orig ${STDIR}/sendmail.st; \
+		else \
+			rm -f ${STDIR}/sendmail.st; \
+		fi; \
+		if [ -f ${HFDIR}/sendmail.hf.orig ]; then \
+			/bin/mv ${HFDIR}/sendmail.hf.orig ${HFDIR}/sendmail.hf; \
+		else \
+			rm -f ${HFDIR}/sendmail.hf; \
+		fi; \
+		echo "Now back out config file change if necessary." 1>&2; \
+	fi
+
+#install: install-sendmail install-docs
+install: install-sendmail
+
+install-sendmail: sendmail
+	if [ ! -f ${BINDIR}/sendmail.orig ]; then \
+		echo "Error: Original not saved yet \
+			(no ${BINDIR}/sendmail.orig)" 1>&2; \
+		exit 1; \
+	else \
+		cpset -o sendmail ${BINDIR} ${BINMODE} ${BINOWN} ${BINGRP}; \
+		for i in ${LINKS}; do \
+			rm -f $$i; \
+			ln ${BINDIR}/sendmail $$i; \
+		done; \
+		cpset -o /dev/null ${STDIR}/sendmail.st 644 ${BINOWN} ${BINGRP}; \
+		cpset -o sendmail.hf ${HFDIR} 444 ${BINOWN} ${BINGRP}; \
+		echo "Now install the new config file: \
+			go to ../../cf/cf and run ./Install-dcd-config" 1>&2; \
+	fi
+
+# doesn't actually install them -- you may want to install pre-nroff versions
+install-docs: aliases.0 mailq.0 newaliases.0 sendmail.0
+
+clean:
+	rm -f ${OBJS} sendmail aliases.0 mailq.0 newaliases.0 sendmail.0
+
+# dependencies
+#   gross overkill, and yet still not quite enough....
+${OBJS}: sendmail.h conf.h
+
+depend:
diff --git a/src/READ_ME b/src/READ_ME
new file mode 100644
index 0000000..7eea267
--- /dev/null
+++ b/src/READ_ME
@@ -0,0 +1,1465 @@
+# Copyright (c) 1983, 1995-1997 Eric P. Allman
+# Copyright (c) 1988 The Regents of the University of California.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	@(#)READ_ME	8.156 (Berkeley) 10/23/97
+#
+
+This directory contains the source files for sendmail.
+
+*********************
+!! DO NOT USE MAKE !!  to compile sendmail -- instead, use the
+*********************  "makesendmail" script located in the src
+directory.  It will find an appropriate Makefile, and create an
+appropriate obj.* subdirectory so that multiplatform support
+works easily.
+
+The Makefile is for the new (4.4BSD) Berkeley make and uses syntax
+that is not recognized by older makes.  It also has assumptions
+about the 4.4 file system layout built in.  See below for details
+about other Makefiles.
+
+If you are porting to a new architecture for which there is no existing
+Makefile, you might start with Makefile.dist.  This works on the old
+traditional make, but isn't customized for any particular architecture.
+
+	**************************************************
+	**  Read below for more details of Makefiles.	**
+	**************************************************
+
+**************************************************************************
+**  IMPORTANT:  DO NOT USE OPTIMIZATION (``-O'') IF YOU ARE RUNNING	**
+**  GCC 2.4.x or 2.5.x.  THERE IS A BUG IN THE GCC OPTIMIZER THAT	**
+**  CAUSES SENDMAIL COMPILES TO FAIL MISERABLY.				**
+**************************************************************************
+
+Jim Wilson of Cygnus believes he has found the problem -- it will
+probably be fixed in GCC 2.5.6 -- but until this is verified, be
+very suspicious of gcc -O.
+
+This problem is reported to have been fixed in gcc 2.6.
+
+**************************************************************************
+**  IMPORTANT:  Read the appropriate paragraphs in the section on	**
+**  ``Operating System and Compile Quirks''.				**
+**************************************************************************
+
+For detailed instructions, please read the document ../doc/op.me:
+
+	eqn ../doc/op.me | pic | ditroff -me
+
+
++-----------+
+| MAKEFILES |
++-----------+
+
+By far, the easiest way to compile sendmail is to use the "makesendmail"
+script:
+
+	sh makesendmail
+
+This uses the "uname" command to figure out what architecture you are
+on and selects a proper Makefile accordingly.  It also creates a
+subdirectory per object format, so that multiarchitecture support is
+easy.  In general this should be all you need.  However, if for some
+reason this doesn't work (e.g., NeXT systems don't have the "uname"
+command) you may have to set up your compile environment by hand.
+
+The "Makefile"s in these directories are from 4.4 BSD, and hence
+really only work properly if you are on a 4.4 system.  In particular,
+they use new syntax that will not be recognized on old make programs,
+and some of them do things like ``.include ../../Makefile.inc'' to
+pick up some system defines.  If you are getting sendmail separately,
+these files won't be included in the distribution, as they are
+outside of the sendmail tree.
+
+Instead, you should use one of the other Makefiles, such as
+Makefile.SunOS for a SunOS system, and so forth.  These should
+work with the version of make that is appropriate for that
+system.  All other Makefiles are in the "src/Makefiles" subdirectory.
+They use the version of make that is native for that system.  These
+are the Makefiles that I use, and they have "Berkeley quirks" in them.
+I can't guarantee that they will work unmodified in your environment.
+In particular, Many of them include -I/usr/sww/include/db and
+-L/usr/sww/lib -- these are Berkeley's locations in the ``Software
+Warehouse'' for the new database libraries, described below.  You don't
+have to remove these definitions if you don't have these directories,
+but you may have to remove -DNEWDB from the DBMDEF definition.
+
+Please look for an appropriate Makefile before you start trying to
+compile with Makefile or Makefile.dist.
+
+If you want to port the new Berkeley make, you can get it from
+ftp.uu.net in the directory /systems/unix/bsd-sources/usr.bin/make.
+Diffs and instructions for building this version of make under
+SunOS 4.1.x are available on ftp.css.itd.umich.edu in
+/pub/systems/sun/Net2-make-sun4.diff.Z.  Diffs and instructions
+for building this version of make under IBM AIX 3.2.4 are available
+on ftp.uni-stuttgart.de in /sw/src/patches/bsd-make-rus-patches.
+For Ultrix, try ftp.vix.com:~ftp/pub/patches/pmake-for-ultrix.Z.
+Paul Southworth <pauls@umich.edu> published a description of porting
+this make in comp.unix.bsd.
+
+The complete text of the Makefile.inc that is in the parent of the
+sendmail directory is:
+
+	#	@(#)Makefile.inc	8.1 (Berkeley) 6/6/93
+
+	BINDIR?=	/usr/sbin
+
+
++----------------------+
+| DATABASE DEFINITIONS |
++----------------------+
+
+There are several database formats that can be used for the alias files
+and for general maps.  When used for alias files they interact in an
+attempt to be back compatible.
+
+The options are:
+
+NEWDB		The new Berkeley DB package.  Some systems (e.g., BSD/OS and
+		Digital UNIX 4.0) have this package pre-installed.  If your
+		system does not have NEWDB installed, get version 1.85
+		from http://www.sleepycat.com/packages/db.1.85.tar.gz.
+		DO NOT use Berkeley DB version 2.X with sendmail.  DO NOT
+		use the version from the Net2 distribution.  If you are
+		still running BSD/386 1.x, you will also need to define
+		OLD_NEWDB.
+NDBM		The older NDBM implementation -- the very old V7 DBM
+		implementation is no longer supported.
+NIS		Network Information Services.  To use this you must have
+		NIS support on your system.
+NISPLUS		NIS+ (the revised NIS released with Solaris 2).  You must
+		have NIS+ support on your system to use this flag.
+HESIOD		Support for Hesiod (from the DEC/Athena distribution).  You
+		must already have Hesiod support on your system for this to
+		work.  You may be able to get this to work with the MIT/Athena
+		version of Hesiod, but that's likely to be a lot of work.
+LDAPMAP		Lightweight Directory Lookup Protocol support.  You will
+		have to install the UMich ldap and lber libraries to use
+		this flag.
+
+>>>  NOTE WELL for NEWDB support: it is CRITICAL that you remove ndbm.o
+>>>  from libdb.a before you install it and DO NOT install ndbm.h if
+>>>  you want to get ndbm support.  If you don't delete these, there is
+>>>  absolutely no point to including -DNDBM, since it will just get you
+>>>  another (inferior) API to the same format database.  These files
+>>>  OVERRIDE calls to ndbm routines -- in particular, if you leave ndbm.h
+>>>  in, you can find yourself using the new db package even if you don't
+>>>  define NEWDB.
+>>>
+>>>  Further note: DO NOT remove your existing /usr/include/ndbm.h --
+>>>  you need that one.  But do not install an updated ndbm.h in
+>>>  /usr/include, /usr/local/include, or anywhere else.
+
+If NEWDB and NDBM are defined (but not NIS), then sendmail will read
+NDBM format alias files, but the next time a newaliases is run the
+format will be converted to NEWDB; that format will be used forever
+more.  This is intended as a transition feature.
+
+If NEWDB, NDBM, and NIS are all defined and the name of the file includes
+the string "/yp/", sendmail will rebuild BOTH the NEWDB and NDBM format
+alias files.  However, it will only read the NEWDB file; the NDBM format
+file is used only by the NIS subsystem.  This is needed because the NIS
+maps on an NIS server are built directly from the NDBM files.
+
+If NDBM and NIS are defined (regardless of the definition of NEWDB),
+and the filename includes the string "/yp/", sendmail adds the special
+tokens "YP_LAST_MODIFIED" and "YP_MASTER_NAME", both of which are
+required if the NDBM file is to be used as an NIS map.
+
+All of these flags are normally defined in the DBMDEF line in the
+Makefile.
+
+If you define NEWDB or HESIOD you get the User Database (USERDB)
+automatically.  Generally you do want to have NEWDB for it to do
+anything interesting.  See above for getting the Berkeley "db"
+package (i.e., NEWDB).  There is no separate "user database"
+package -- don't bother searching for it on the net.
+
+Hesiod and LDAP require libraries that may not be installed with your
+system.  These are outside of my ability to provide support.  See the
+"Quirks" section for more information.
+
+
+
++---------------+
+| COMPILE FLAGS |
++---------------+
+
+Whereever possible, I try to make sendmail pull in the correct
+compilation options needed to compile on various environments based on
+automatically defined symbols.  Some machines don't seem to have useful
+symbols available, requiring that a compilation flag be defined in
+the Makefile; see the Makefiles subdirectory for the supported
+architectures.
+
+If you are a system to which sendmail has already been ported you
+should not have to touch the following symbols.  But if you are porting,
+you may have to tweak the following compilation flags in conf.h in order
+to get it to compile and link properly:
+
+SYSTEM5		Adjust for System V (not necessarily Release 4).
+SYS5SIGNALS	Use System V signal semantics -- the signal handler
+		is automatically dropped when the signal is caught.
+		If this is not set, use POSIX/BSD semantics, where the
+		signal handler stays in force until an exec or an
+		explicit delete.  Implied by SYSTEM5.
+SYS5SETPGRP	Use System V setpgrp() semantics.  Implied by SYSTEM5.
+HASFCHMOD	Define this to one if you have the fchmod(2) system call.
+		This improves security.
+HASFLOCK	Set this if you prefer to use the flock(2) system call
+		rather than using fcntl-based locking.  Fcntl locking
+		has some semantic gotchas, but many vendor systems
+		also interface it to lockd(8) to do NFS-style locking.
+		Unfortunately, may vendors implementations of fcntl locking
+		is just plain broken (e.g., locks are never released,
+		causing your sendmail to deadlock; when the kernel runs
+		out of locks your system crashes).  For this reason, I
+		recommend always defining this unless you are absolutely
+		certain that your fcntl locking implementation really works.
+HASUNAME	Set if you have the "uname" system call.  Implied by
+		SYSTEM5.
+HASUNSETENV	Define this if your system library has the "unsetenv"
+		subroutine.
+HASSETSID	Define this if you have the setsid(2) system call.  This
+		is implied if your system appears to be POSIX compliant.
+HASINITGROUPS	Define this if you have the initgroups(3) routine.
+HASSETVBUF	Define this if you have the setvbuf(3) library call.
+		If you don't, setlinebuf will be used instead.  This
+		defaults on if your compiler defines __STDC__.
+HASSETREUID	Define this if you have setreuid(2) ***AND*** root can
+		use setreuid to change to an arbitrary user.  This second
+		condition is not satisfied on AIX 3.x.  You may find that
+		your system has setresuid(2), (for example, on HP-UX) in
+		which case you will also have to #define setreuid(r, e)
+		to be the appropriate call.  Some systems (such as Solaris)
+		have a compatibility routine that doesn't work properly,
+		but may have "saved user ids" properly implemented so you
+		can ``#define setreuid(r, e) seteuid(e)'' and have it work.
+		The important thing is that you have a call that will set
+		the effective uid independently of the real or saved uid
+		and be able to set the effective uid back again when done.
+		There's a test program in ../test/t_setreuid.c that will
+		try things on your system.  Setting this improves the
+		security, since sendmail doesn't have to read .forward
+		and :include: files as root.  There are certain attacks
+		that may be unpreventable without this call.
+USESETEUID	Define this to 1 if you have a seteuid(2) system call that
+		will allow root to set only the effective user id to an
+		arbitrary value ***AND*** you have saved user ids.  This is
+		preferable to HASSETREUID if these conditions are fulfilled.
+		These are the semantics of the to-be-released revision of
+		Posix.1.  The test program ../test/t_seteuid.c will try
+		this out on your system.  If you define both HASSETREUID
+		and USESETEUID, the former is ignored.
+HASLSTAT	Define this if you have symbolic links (and thus the
+		lstat(2) system call).  This improves security.  Unlike
+		most other options, this one is on by default, so you
+		need to #undef it in conf.h if you don't have symbolic
+		links (these days everyone does).
+HASSETRLIMIT	Define this to 1 if you have the setrlimit(2) syscall.
+		You can define it to 0 to force it off.  It is assumed
+		if you are running a BSD-like system.
+HASULIMIT	Define this if you have the ulimit(2) syscall (System V
+		style systems).  HASSETRLIMIT overrides, as it is more
+		general.
+HASWAITPID	Define this if you have the waitpid(2) syscall.
+HASGETDTABLESIZE
+		Define this if you have the getdtablesize(2) syscall.
+HAS_ST_GEN	Define this to 1 if your system has the st_gen field in
+		the stat structure (see stat(2)).
+USESTRERROR	Define this if you have the libc strerror function (which
+		should be declared in <errno.h>), and it should be used
+		instead of sys_errlist.
+NEEDGETOPT	Define this if you need a reimplementation of getopt(3).
+		On some systems, getopt does very odd things if called
+		to scan the arguments twice.  This flag will ask sendmail
+		to compile in a local version of getopt that works
+		properly.
+NEEDSTRTOL	Define this if your standard C library does not define
+		strtol(3).  This will compile in a local version.
+NEEDVPRINTF	Define this if your standard C library does not define
+		vprintf(3).  Note that the resulting fake implementation
+		is not very elegant and may not even work on some
+		architectures.
+NEEDFSYNC	Define this if your standard C library does not define
+		fsync(2).  This will try to simulate the operation using
+		fcntl(2); if that is not available it does nothing, which
+		isn't great, but at least it compiles and runs.
+HASGETUSERSHELL	Define this to 1 if you have getusershell(3) in your
+		standard C library.  If this is not defined, or is defined
+		to be 0, sendmail will scan the /etc/shells file (no
+		NIS-style support, defaults to /bin/sh and /bin/csh if
+		that file does not exist) to get a list of unrestricted
+		user shells.  This is used to determine whether users
+		are allowed to forward their mail to a program or a file.
+NEEDPUTENV	Define this if your system needs am emulation of the
+		putenv(3) call.  Define to 1 to implement it in terms
+		of setenv(3) or to 2 to do it in terms of primitives.
+NOFTRUNCATE	Define this if you don't have the ftruncate(2) syscall.
+		If you don't have this system call, there is an unavoidable
+		race condition that occurs when creating alias databases.
+GIDSET_T	The type of entries in a gidset passed as the second
+		argument to getgroups(2).  Historically this has been an
+		int, so this is the default, but some systems (such as
+		IRIX) pass it as a gid_t, which is an unsigned short.
+		This will make a difference, so it is important to get
+		this right!  However, it is only an issue if you have
+		group sets.
+SLEEP_T		The type returned by the system sleep() function.
+		Defaults to "unsigned int".  Don't worry about this
+		if you don't have compilation problems.
+ARBPTR_T	The type of an arbitrary pointer -- defaults to "void *".
+		If you are an very old compiler you may need to define
+		this to be "char *".
+SOCKADDR_LEN_T	The type used for the third parameter to accept(2),
+		getsockname(2), and getpeername(2), representing the
+		length of a struct sockaddr.  Defaults to int.
+SOCKOPT_LEN_T	The type used for the fifth parameter to getsockopt(2)
+		and setsockopt(2), representing the length of the option
+		buffer.  Defaults to int.
+LA_TYPE		The type of load average your kernel supports.  These
+		can be one of:
+		 LA_ZERO (1) -- it always returns the load average as
+			"zero" (and does so on all architectures).
+		 LA_INT (2) to read /dev/kmem for the symbol avenrun and
+			interpret as a long integer.
+		 LA_FLOAT (3) same, but interpret the result as a floating
+			point number.
+		 LA_SHORT (6) to interpret as a short integer.
+		 LA_SUBR (4) if you have the getloadavg(3) routine in your
+			system library.
+		 LA_MACH (5) to use MACH-style load averages (calls
+			processor_set_info()),
+		 LA_PROCSTR (7) to read /proc/loadavg and interpret it
+			as a string representing a floating-point
+			number (Linux-style).
+		 LA_READKSYM (8) is an implementation suitable for some
+			versions of SVr4 that uses the MIOC_READKSYM ioctl
+			call to read /dev/kmem.
+		 LA_DGUX (9) is a special implementation for DG/UX that uses
+			the dg_sys_info system call.
+		 LA_HPUX (10) is an HP-UX specific version that uses the
+			pstat_getdynamic system call.
+		 LA_IRIX6 (11) is an IRIX 6.x specific version that adapts
+			to 32 or 64 bit kernels; it is otherwise very similar
+			to LA_INT.
+		 LA_KSTAT (12) uses the (Solaris-specific) kstat(3k)
+			implementation.
+		 LA_DEVSHORT (13) reads a short from a system file (default:
+			/dev/table/avenrun) and scales it in the same manner
+			as LA_SHORT.
+		LA_INT, LA_SHORT, LA_FLOAT, and LA_READKSYM have several
+		other parameters that they try to divine: the name of your
+		kernel, the name of the variable in the kernel to examine,
+		the number of bits of precision in a fixed point load average,
+		and so forth.  LA_DEVSHORT uses _PATH_AVENRUN to find the
+		device to be read to find the load average.
+		In desperation, use LA_ZERO.  The actual code is in
+		conf.c -- it can be tweaked if you are brave.
+FSHIFT		For LA_INT, LA_SHORT, and LA_READKSYM, this is the number
+		of bits of load average after the binary point -- i.e.,
+		the number of bits to shift right in order to scale the
+		integer to get the true integer load average.  Defaults to 8.
+_PATH_UNIX	The path to your kernel.  Needed only for LA_INT, LA_SHORT,
+		and LA_FLOAT.  Defaults to "/unix" on System V, "/vmunix"
+		everywhere else.
+LA_AVENRUN	For LA_INT, LA_SHORT, and LA_FLOAT, the name of the kernel
+		variable that holds the load average.  Defaults to "avenrun"
+		on System V, "_avenrun" everywhere else.
+SFS_TYPE	Encodes how your kernel can locate the amount of free
+		space on a disk partition.  This can be set to SFS_NONE
+		(0) if you have no way of getting this information,
+		SFS_USTAT (1) if you have the ustat(2) system call,
+		SFS_4ARGS (2) if you have a four-argument statfs(2)
+		system call (and the include file is <sys/statfs.h>),
+		SFS_VFS (3), SFS_MOUNT (4), SFS_STATFS (5) if you have
+		the two-argument statfs(2) system call with includes in
+		<sys/vfs.h>, <sys/mount.h>, or <sys/statfs.h> respectively,
+		or SFS_STATVFS (6) if you have the two-argument statvfs(2)
+		call.  The default if nothing is defined is SFS_NONE.
+SFS_BAVAIL	with SFS_4ARGS you can also set SFS_BAVAIL to the field name
+		in the statfs structure that holds the useful information;
+		this defaults to f_bavail.
+SPT_TYPE	Encodes how your system can display what a process is doing
+		on a ps(1) command (SPT stands for Set Process Title).  Can
+		be set to:
+		SPT_NONE (0) -- Don't try to set the process title at all.
+		SPT_REUSEARGV (1) -- Pad out your argv with the information;
+			this is the default if none specified.
+		SPT_BUILTIN (2) -- The system library has setproctitle.
+		SPT_PSTAT (3) -- Use the PSTAT_SETCMD option to pstat(2)
+			to set the process title; this is used by HP-UX.
+		SPT_PSSTRINGS (4) -- Use the magic PS_STRINGS pointer (4.4BSD).
+		SPT_SYSMIPS (5) -- Use sysmips() supported by NEWS-OS 6.
+		SPT_SCO (6) -- Write kernel u. area.
+		SPT_CHANGEARGV (7) -- Write pointers to our own strings into
+			the existing argv vector.
+SPT_PADCHAR	Character used to pad the process title; if undefined,
+		the space character (0x20) is used.  This is ignored if
+		SPT_TYPE != SPT_REUSEARGV
+ERRLIST_PREDEFINED
+		If set, assumes that some header file defines sys_errlist.
+		This may be needed if you get type conflicts on this
+		variable -- otherwise don't worry about it.
+WAITUNION	The wait(2) routine takes a "union wait" argument instead
+		of an integer argument.  This is for compatibility with
+		old versions of BSD.
+SCANF		You can set this to extend the F command to accept a
+		scanf string -- this gives you a primitive parser for
+		class definitions -- BUT it can make you vulnerable to
+		core dumps if the target file is poorly formed.
+SYSLOG_BUFSIZE	You can define this to be the size of the buffer that
+		syslog accepts.  If it is not defined, it assumes a
+		1024-byte buffer.  If the buffer is very small (under
+		256 bytes) the log message format changes -- each
+		e-mail message will log many more messages, since it
+		will log each piece of information as a separate line
+		in syslog.
+BROKEN_RES_SEARCH
+		On Ultrix (and maybe other systems?) if you use the
+		res_search routine with an unknown host name, it returns
+		-1 but sets h_errno to 0 instead of HOST_NOT_FOUND.  If
+		you set this, sendmail considers 0 to be the same as
+		HOST_NOT_FOUND.
+NAMELISTMASK	If defined, values returned by nlist(3) are masked
+		against this value before use -- a common value is
+		0x7fffffff to strip off the top bit.
+BSD4_4_SOCKADDR	If defined, socket addresses have an sa_len field that
+		defines the length of this address.
+SAFENFSPATHCONF	Set this to 1 if and only if you have verified that a
+		pathconf(2) call with _PC_CHOWN_RESTRICTED argument on an
+		NFS filesystem where the underlying system allows users to
+		give away files to other users returns <= 0.  Be sure you
+		try both on NFS V2 and V3.  Some systems assume that their
+		local policy apply to NFS servers -- this is a bad
+		assumption!  The test/t_pathconf.c program will try this
+		for you -- you have to run it in a directory that is
+		mounted from a server that allows file giveaway.
+SIOCGIFCONF_IS_BROKEN
+		Set this if your system has an SIOCGIFCONF ioctl defined,
+		but it doesn't behave the same way as "most" systems (BSD,
+		Solaris, SunOS, HP-UX, etc.)
+SIOCGIFNUM_IS_BROKEN
+		Set this if your system has an SIOCGIFNUM ioctl defined,
+		but it doesn't behave the same way as "most" systems
+		(Solaris, HP-UX).
+
+
+
++-----------------------+
+| COMPILE-TIME FEATURES |
++-----------------------+
+
+There are a bunch of features that you can decide to compile in, such
+as selecting various database packages and special protocol support.
+Several are assumed based on other compilation flags -- if you want to
+"un-assume" something, you probably need to edit conf.h.  Compilation
+flags that add support for special features include:
+
+NDBM		Include support for "new" DBM library for aliases and maps.
+		Normally defined in the Makefile.
+NEWDB		Include support for Berkeley "db" package (hash & btree)
+		for aliases and maps.  Normally defined in the Makefile.
+OLD_NEWDB	If non-zero, the version of NEWDB you have is the old
+		one that does not include the "fd" call.  This call was
+		added in version 1.5 of the Berkeley DB code.  If you
+		use -DOLD_NEWDB=0 it forces you to use the new interface.
+NIS		Define this to get NIS (YP) support for aliases and maps.
+		Normally defined in the Makefile.
+NISPLUS		Define this to get NIS+ support for aliases and maps.
+		Normally defined in the Makefile.
+HESIOD		Define this to get Hesiod support for aliases and maps.
+		Normally defined in the Makefile.
+NETINFO		Define this to get NeXT NetInfo support for aliases and maps.
+		Normally defined in the Makefile.
+USERDB		Define this to 1 to include support for the User Information
+		Database.  Implied by NEWDB or HESIOD.  You can use
+		-DUSERDB=0 to explicitly turn it off.
+IDENTPROTO	Define this as 1 to get IDENT (RFC 1413) protocol support.
+		This is assumed unless you are running on Ultrix or
+		HP-UX, both of which have a problem in the UDP
+		implementation.  You can define it to be 0 to explicitly
+		turn off IDENT protocol support.  If defined off, the code
+		is actually still compiled in, but it defaults off; you
+		can turn it on by setting the IDENT timeout to 30s in the
+		configuration file.
+IP_SRCROUTE	Define this to 1 to get IP source routing information
+		displayed in the Received: header.  This is assumed on
+		most systems, but some (e.g., Ultrix) apparently have a
+		broken version of getsockopt that doesn't properly
+		support the IP_OPTIONS call.  You probably want this if
+		your OS can cope with it.  Symptoms of failure will be that
+		it won't compile properly (that is, no support for fetching
+		IP_OPTIONs), or it compiles but source-routed TCP connections
+		either refuse to open or open and hang for no apparent reason.
+		Ultrix and AIX3 are known to fail this way.
+LOG		Set this to get syslog(3) support.  Defined by default
+		in conf.h.  You want this if at all possible.
+NETINET		Set this to get TCP/IP support.  Defined by default
+		in conf.h.  You probably want this.
+NETISO		Define this to get ISO networking support.
+NETUNIX		Define this to get Unix domain networking support.  Defined
+		by default.  A few bizarre systems (SCO, ISC, Altos) don't
+		support this networking domain.
+SMTP		Define this to get the SMTP code.  Implied by NETINET
+		or NETISO.
+NAMED_BIND	If non-zero, include DNS (name daemon) support, including
+		MX support.  The specs say you must use this if you run
+		SMTP.  You don't have to be running a name server daemon
+		on your machine to need this -- any use of the DNS resolver,
+		including remote access to another machine, requires this
+		option.  Defined by default in conf.h.  Define it to zero
+		ONLY on machines that do not use DNS in any way.
+QUEUE		Define this to get queueing code.  Implied by NETINET
+		or NETISO; required by SMTP.  This gives you other good
+		stuff -- it should be on.
+DAEMON		Define this to get general network support.  Implied by
+		NETINET or NETISO.  Defined by default in conf.h.  You
+		almost certainly want it on.
+MATCHGECOS	Permit fuzzy matching of user names against the full
+		name (GECOS) field in the /etc/passwd file.  This should
+		probably be on, since you can disable it from the config
+		file if you want to.  Defined by default in conf.h.
+MIME8TO7	If non-zero, include 8 to 7 bit MIME conversions.  This
+		also controls advertisement of 8BITMIME in the ESMTP
+		startup dialogue.
+MIME7TO8	If non-zero, include 7 to 8 bit MIME conversions.
+HES_GETMAILHOST	Define this to 1 if you are using Hesiod with the
+		hes_getmailhost() routine.  This is included with the MIT
+		Hesiod distribution, but not with the DEC Hesiod distribution.
+XDEBUG		Do additional internal checking.  These don't cost too
+		much; you might as well leave this on.
+TCPWRAPPERS	Turns on support for the TCP wrappers library (-lwrap).
+		See below for further information.
+SECUREWARE	Enable calls to the SecureWare luid enabling/changing routines.
+		SecureWare is a C2 security package added to several UNIX's
+		(notably ConvexOS) to get a C2 Secure system.  This
+		option causes mail delivery to be done with the luid of the
+		recipient.
+SHARE_V1	Support for the fair share scheduler, version 1.  Setting to
+		1 causes final delivery to be done using the recipients
+		resource limitations.  So far as I know, this is only
+		supported on ConvexOS.
+
+
++---------------------+
+| DNS/RESOLVER ISSUES |
++---------------------+
+
+Many systems have old versions of the resolver library.  At a minimum,
+you should be running BIND 4.8.3; older versions may compile, but they
+have known bugs that should give you pause.
+
+Common problems in old versions include "undefined" errors for
+dn_skipname.
+
+Some people have had a problem with BIND 4.9; it uses some routines
+that it expects to be externally defined such as strerror().  It may
+help to link with "-l44bsd" to solve this problem.  This has apparently
+been fixed in later versions of BIND, starting around 4.9.3.  In other
+words, if you use 4.9.0 through 4.9.2, you need -l44bsd; for earlier or
+later versions, you do not.
+
+!PLEASE! be sure to link with the same version of the resolver as
+the header files you used -- some people have used the 4.9 headers
+and linked with BIND 4.8 or vice versa, and it doesn't work.
+Unfortunately, it doesn't fail in an obvious way -- things just
+subtly don't work.
+
+WILDCARD MX RECORDS ARE A BAD IDEA!  The only situation in which they
+work reliably is if you have two versions of DNS, one in the real world
+which has a wildcard pointing to your firewall, and a completely
+different version of the database internally that does not include
+wildcard MX records that match your domain.  ANYTHING ELSE WILL GIVE
+YOU HEADACHES!
+
+
++-------------------------------------+
+| OPERATING SYSTEM AND COMPILE QUIRKS |
++-------------------------------------+
+
+GCC 2.5.x problems  *** IMPORTANT ***
+	Date: Mon, 29 Nov 93 19:08:44 PST
+	From: wilson@cygnus.com (Jim Wilson)
+	Message-Id: <9311300308.AA04608@cygnus.com>
+	To: kenner@vlsi1.ultra.nyu.edu
+	Subject: [cattelan@thebarn.com: gcc 2.5.4-2.5.5 -O bug]
+	Cc: cattelan@thebarn.com, rms@gnu.ai.mit.edu, sendmail@cs.berkeley.edu
+
+	This fixes a problem that occurs when gcc 2.5.5 is used to compile
+	sendmail 8.6.4 with optimization on a sparc.
+
+	Mon Nov 29 19:00:14 1993  Jim Wilson  (wilson@sphagnum.cygnus.com)
+
+		* reload.c (find_reloads_toplev): Replace obsolete reference to
+		BYTE_LOADS_*_EXTEND with LOAD_EXTEND_OP.
+
+	*** clean-ss-931128/reload.c    Sun Nov 14 16:20:01 1993
+	--- ss-931128/reload.c  Mon Nov 29 18:52:55 1993
+	*************** find_reloads_toplev (x, opnum, type, ind
+	*** 3888,3894 ****
+		 force a reload in that case.  So we should not do anything here.  */
+
+		else if (regno >= FIRST_PSEUDO_REGISTER
+	! #if defined(BYTE_LOADS_ZERO_EXTEND) || defined(BYTE_LOADS_SIGN_EXTEND)
+		       && (GET_MODE_SIZE (GET_MODE (x))
+			   <= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))))
+	  #endif
+	--- 3888,3894 ----
+		 force a reload in that case.  So we should not do anything here.  */
+
+		else if (regno >= FIRST_PSEUDO_REGISTER
+	! #ifdef LOAD_EXTEND_OP
+		       && (GET_MODE_SIZE (GET_MODE (x))
+			   <= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x))))
+	  #endif
+
+GCC 2.7.x problems
+	Apparently GCC 2.7.0 on the Pentium processor has optimization
+	problems.  I recommend against using -O on that architecture.  This
+	has been seen on FreeBSD 2.0.5 RELEASE.
+
+GDBM	GDBM does not work with sendmail 8.8 because the additional
+	security checks and file locking cause problems.  Unfortunately,
+	gdbm does not provide a compile flag in its version of ndbm.h so
+	the code can adapt.  We expect this to be fixed in 8.9, but
+	probably at the cost of a new command line compile flag.
+
+Configuration file location
+	Up to 8.6, sendmail tried to find the sendmail.cf file in the same
+	place as the vendors had put it, even when this was obviously
+	stupid.  As of 8.7, sendmail ALWAYS looks for /etc/sendmail.cf.
+	You can get sendmail to use the stupid vendor .cf location by
+	adding -DUSE_VENDOR_CF_PATH during compilation, but this may break
+	support programs and scripts that need to find sendmail.cf.  You
+	are STRONGLY urged to use symbolic links if you want to use the
+	vendor location rather than changing the location in the sendmail
+	binary.
+
+ld: fatal: library -l44bsd: not found
+	Most of the Makefiles include -l44bsd in the LIBS= definition;
+	this is because several versions of BIND (4.9.0, 4.9.1, 4.9.2)
+	require this library.  If you are running one of these versions,
+	install this library.  Otherwise, just delete "-l44bsd" from the
+	LIBS= line in the Makefile.
+
+SunOS 4.x (Solaris 1.x)
+	You may have to use -lresolv on SunOS.  However, beware that
+	this links in a new version of gethostbyname that does not
+	understand NIS, so you must have all of your hosts in DNS.
+
+	Some people have reported problems with the SunOS version of
+	-lresolv and/or in.named, and suggest that you get a newer
+	version.  The symptoms are delays when you connect to the
+	SMTP server on a SunOS machine or having your domain added to
+	addresses inappropriately.  There is a version of BIND
+	version 4.9 on gatekeeper.DEC.COM in pub/BSD/bind/4.9.
+
+	There is substantial disagreement about whether you can make
+	this work with resolv+, which allows you to specify a search-path
+	of services.  Some people report that it works fine, others
+	claim it doesn't work at all (including causing sendmail to
+	drop core when it tries to do multiple resolv+ lookups for a
+	single job).  I haven't tried resolv+, as we use DNS exclusively.
+
+	Should you want to try resolv+, it is on ftp.uu.net in
+	/networking/ip/dns.
+
+	Apparently getservbyname() can fail under moderate to high
+	load under some circumstances.  This will exhibit itself as
+	the message ``554 makeconnection: service "smtp" unknown''.
+	The problem has been traced to one or more blank lines in
+	/etc/services on the NIS server machine.  Delete these
+	and it should work.  This info is thanks to Brian Bartholomew
+	<bb@math.ufl.edu> of I-Kinetics, Inc.
+
+SunOS 4.0.2 (Sun 386i)
+	Date: Fri, 25 Aug 1995 11:13:58 +0200 (MET DST)
+	From: teus@oce.nl
+
+	Sendmail 8.7.Beta.12 compiles and runs nearly out of the box with the
+	following changes:
+	* Don't use /usr/5bin in your PATH, but make /usr/5bin/uname
+	  available as "uname" command.
+	* Use the defines "-DBSD4_3 -DNAMED_BIND=0" in the
+	  Makefile.SunOS.4.0, which is selected via the "uname" command.
+	I recommend to make available the db-library on the system first
+	(and change the Makefile to use this library).
+	Note that the sendmail.cf and aliases files are found in /etc.
+
+SunOS 4.1.3, 4.1.3_U1
+	Sendmail causes crashes on SunOS 4.1.3 and 4.1.3_U1.  According
+	to Sun bug number 1077939:
+
+	If an application does a getsockopt() on a SOCK_STREAM (TCP) socket
+	after the other side of the connection has sent a TCP RESET for
+	the stream, the kernel gets a Bus Trap in the tcp_ctloutput() or
+	ip_ctloutput() routine.
+
+	For 4.1.3, this is fixed in patch 100584-08, available on the
+	Sunsolve 2.7.1 or later CDs.  For 4.1.3_U1, this is fixed in patch
+	101790-01 (SunOS 4.1.3_U1: TCP socket and reset problems).
+
+Solaris 2.x (SunOS 5.x)
+	To compile for Solaris, the Makefile chosen by makesendmail must
+	include a SOLARIS definition which reflects the Solaris version
+	(i.e. -DSOLARIS=20400 for 2.4 or -DSOLARIS=20501 for 2.5.1).
+	If you are using gcc, make sure -I/usr/include is not used (or
+	it might complain about TopFrame).  If you are using Sun's cc,
+	make sure /opt/SUNWspro/bin/cc is used instead of /usr/ucb/cc
+	(or it might complain about tm_zone).
+
+	To the best of my knowledge, Solaris does not have the
+	gethostbyname problem described above.  However, it does
+	have another one:
+
+	From a correspondent:
+
+	   For solaris 2.2, I have
+
+		hosts:      files dns
+
+	   in /etc/nsswitch.conf and /etc/hosts has to have the fully
+	   qualified host name. I think "files" has to be before "dns"
+	   in /etc/nsswitch.conf during bootup.
+
+	From another correspondent:
+
+	   When running sendmail under Solaris, the gethostbyname()
+	   hack in conf.c which should perform proper canonicalization
+	   of host names could fail.  Result: the host name is not
+	   canonicalized despite the hack, and you'll have to define $j
+	   and $m in sendmail.cf somewhere.
+
+	   The reason could be that /etc/nsswitch.conf is improperly
+	   configured (at least from sendmail's point of view).  For
+	   example, the line
+
+		hosts:      files nisplus dns
+
+	   will make gethostbyname() look in /etc/hosts first, then ask
+	   nisplus, then dns.  However, if /etc/hosts does not contain
+	   the full canonicalized hostname, then no amount of
+	   gethostbyname()s will work.
+
+	   Solution (or rather, a workaround): Ask nisplus first, then
+	   dns, then local files:
+
+		hosts:      nisplus dns [NOTFOUND=return] files
+
+	The Solaris "syslog" function is apparently limited to something
+	about 90 characters because of a kernel limitation.  If you have
+	source code, you can probably up this number.  You can get patches
+	that fix this problem: the patch ids are:
+
+		Solaris 2.1	100834
+		Solaris 2.2	100999
+		Solaris 2.3	101318
+
+	Be sure you have the appropriate patch installed or you won't
+	see system logging.
+
+Solaris 2.4 (SunOS 5.4)
+	If you include /usr/lib at the end of your LD_LIBRARY_PATH you run
+	the risk of getting the wrong libraries under some circumstances.
+	This is because of a new feature in Solaris 2.4, described by
+	Rod.Evans@Eng.Sun.COM:
+
+	>> Prior to SunOS 5.4, any LD_LIBRARY_PATH setting was ignored by the
+	>> runtime linker if the application was setxid (secure), thus your
+	>> applications search path would be:
+	>>
+	>>	/usr/local/lib	LD_LIBRARY_PATH component - IGNORED
+	>>	/usr/lib	LD_LIBRARY_PATH component - IGNORED
+	>>	/usr/local/lib	RPATH - honored
+	>>	/usr/lib	RPATH - honored
+	>>
+	>> the effect is that path 3 would be the first used, and this would
+	>> satisfy your resolv.so lookup.
+	>>
+	>> In SunOS 5.4 we made the LD_LIBRARY_PATH a little more flexible.
+	>> People who developed setxid applications wanted to be able to alter
+	>> the library search path to some degree to allow for their own
+	>> testing and debugging mechanisms.  It was decided that the only
+	>> secure way to do this was to allow a `trusted' path to be used in
+	>> LD_LIBRARY_PATH.  The only trusted directory we presently define
+	>> is /usr/lib.  Thus a setuid root developer could play with some
+	>> alternative shared object implementations and place them in
+	>> /usr/lib (being root we assume they'ed have access to write in this
+	>> directory).  This change was made as part of 1155380 - after a
+	>> *huge* amount of discussion regarding the security aspect of things.
+	>>
+	>> So, in SunOS 5.4 your applications search path would be:
+	>>
+	>>	/usr/local/lib	from LD_LIBRARY_PATH - IGNORED (untrustworthy)
+	>>	/usr/lib	from LD_LIBRARY_PATH - honored (trustworthy)
+	>>	/usr/local/lib	from RPATH - honored
+	>>	/usr/lib	from RPATH - honored
+	>>
+	>> here, path 2 would be the first used.
+
+Solaris 2.6 (SunOS 5.6)
+	If you built sendmail 8.8.1 through 8.8.4 inclusive on a Solaris 2.5
+	system, that binary will not run on Solaris 2.6, due to problems with
+	incompatible snprintf(3s) calls.  This problem is fixed in sendmail
+	8.8.5.
+
+Solaris 2.5.1 (SunOS 5.5.1) and 2.6 (SunOS 5.6)
+	Apparently Solaris 2.5.1 patch 103663-01 installs a new
+	/usr/include/resolv.h file that defines the __P macro without
+	checking to see if it is already defined.  This new resolv.h is also
+	included in the Solaris 2.6 distribution. This causes compile
+	warnings such as:
+
+	   In file included from daemon.c:51:
+	   /usr/include/resolv.h:208: warning: `__P' redefined
+	   cdefs.h:58: warning: this is the location of the previous definition
+
+	These warnings can be safely ignored or you can create a resolv.h
+	file in the obj.SunOS.5.5.1.* or obj.SunOS.5.6.* directory that reads:
+
+	   #undef __P
+	   #include "/usr/include/resolv.h"
+
+	Sun is aware of the problem (Sun bug ID 4081053) and it will be fixed
+	in a to-be-released patch.
+
+Ultrix
+	By default, the IDENT protocol is turned off on Ultrix.  If you
+	are running Ultrix 4.4 or later, or if you have included patch
+	CXO-8919 for Ultrix 4.2 or 4.3 to fix the TCP problem, you can turn
+	IDENT on in the configuration file by setting the "ident" timeout
+	to 30 seconds.
+
+Digital UNIX (formerly DEC OSF/1)
+	If you are compiling on OSF/1 (DEC Alpha), you must use
+	-L/usr/shlib (otherwise it core dumps on startup).  You may also
+	need -mld to get the nlist() function, although some versions
+	apparently don't need this.
+	
+	Also, the enclosed makefile removed /usr/sbin/smtpd; if you need
+	it, just create the link to the sendmail binary.
+
+	On DEC OSF/1 3.2 or earlier, the MatchGECOS option doesn't work
+	properly due to a bug in the getpw* routines.  If you want to use
+	this, use -DDEC_OSF_BROKEN_GETPWENT=1.  The problem is fixed in 3.2C.
+
+	On Digital UNIX 4.0 and later, Berkeley DB is included with the
+	operating system and already has the ndbm.o module removed.  However,
+	Digital has modified the original Berkeley DB db.h include file.
+	This results in the following warning while compiling map.c and udb.c:
+
+	cc: Warning: /usr/include/db.h, line 74: The redefinition of the macro
+	 "__signed" conflicts with a current definition because the replacement
+	 lists differ.  The redefinition is now in effect.
+	#define __signed        signed
+	------------------------^
+
+	This warning can be ignored.
+
+IRIX
+	The header files on SGI IRIX are completely prototyped, and as
+	a result you can sometimes get some warning messages during
+	compilation.  These can be ignored.  There are two errors in
+	deliver only if you are using gcc, both of the form ``warning:
+	passing arg N of `execve' from incompatible pointer type''.
+	Also, if you compile with -DNIS, you will get a complaint
+	about a declaration of struct dom_binding in a prototype
+	when compiling map.c; this is not important because the
+	function being prototyped is not used in that file.
+
+	In order to compile sendmail you will have had to install
+	the developers' option in order to get the necessary include
+	files.
+
+	If you compile with -lmalloc (the fast memory allocator), you may
+	get warning messages such as the following:
+
+	   ld32: WARNING 85: definition of _calloc in /usr/lib32/libmalloc.so
+		preempts that definition in /usr/lib32/mips3/libc.so.
+	   ld32: WARNING 85: definition of _malloc in /usr/lib32/libmalloc.so
+		preempts that definition in /usr/lib32/mips3/libc.so.
+	   ld32: WARNING 85: definition of _realloc in /usr/lib32/libmalloc.so
+		preempts that definition in /usr/lib32/mips3/libc.so.
+	   ld32: WARNING 85: definition of _free in /usr/lib32/libmalloc.so
+		preempts that definition in /usr/lib32/mips3/libc.so.
+	   ld32: WARNING 85: definition of _cfree in /usr/lib32/libmalloc.so
+		preempts that definition in /usr/lib32/mips3/libc.so.
+
+	These are unavoidable and innocuous -- just ignore them.
+
+	According to Dave Sill <de5@ornl.gov>, there is a version of the
+	Berkeley db library patched to run on Irix 6.2 available from
+	http://reality.sgi.com/ariel/db-1.85-irix.tar.Z .
+
+NeXT or NEXTSTEP
+	NEXTSTEP 3.3 and earlier ship with the old DBM library.  You will
+	need to acquire the new Berkeley DB from ftp.cs.berkeley.edu.
+	Install it in /usr/local/{lib,include}.
+
+	If you are compiling on NEXTSTEP, you will have to create an
+	empty file "unistd.h" and create a file "dirent.h" containing:
+
+		#include <sys/dir.h>
+		#define dirent	direct
+
+	(The Makefile.NeXT should try to do both of these for you.)
+
+	Apparently, there is a bug in getservbyname on Nextstep 3.0
+	that causes it to fail under some circumstances with the
+	message "SYSERR: service "smtp" unknown" logged.  You should
+	be able to work around this by including the line:
+
+		OOPort=25
+
+	in your .cf file.
+
+	You may have to use -DNeXT.
+
+BSDI (BSD/386) 1.0, NetBSD 0.9, FreeBSD 1.0
+	The "m4" from BSDI won't handle the config files properly.
+	I haven't had a chance to test this myself.
+
+	The M4 shipped in FreeBSD and NetBSD 0.9 don't handle the config
+	files properly. One must use either GNU m4 1.1 or the PD-M4
+	recently posted in comp.os.386bsd.bugs (and maybe others).
+	NetBSD-current includes the PD-M4 (as stated in the NetBSD file
+	CHANGES).
+	
+	FreeBSD 1.0 RELEASE has uname(2) now. Use -DUSEUNAME in order to
+	use it (look into Makefile.FreeBSD). NetBSD-current may have
+	it too but it has not been verified.
+
+	You cannot port the latest version of the Berkeley db library
+	and use it with sendmail without recompiling the world.  This
+	is because C library routines use the older version which have
+	incompatible header files -- the result is that it can't read
+	other system files, such as /etc/passwd, unless you use the
+	new db format throughout your system.  You should normally just
+	use the version of db supplied in your release.  You may need
+	to use -DOLD_NEWDB=1 to make this work -- this turns off some
+	new interface calls (for file locking) that are not in older
+	versions of db.  You'll get compile errors if you need this
+	flag and don't have it set.
+
+4.3BSD
+	If you are running a "virgin" version of 4.3BSD, you'll have
+	a very old resolver and be missing some header files.  The
+	header files are simple -- create empty versions and everything
+	will work fine.  For the resolver you should really port a new
+	version (4.8.3 or later) of the resolver; 4.9 is available on
+	gatekeeper.DEC.COM in pub/BSD/bind/4.9.  If you are really
+	determined to continue to use your old, buggy version (or as
+	a shortcut to get sendmail working -- I'm sure you have the
+	best intentions to port a modern version of BIND), you can
+	copy ../contrib/oldbind.compat.c into src and add
+	oldbind.compat.o to OBJADD in the Makefile.
+
+A/UX
+	Date: Tue, 12 Oct 1993 18:28:28 -0400 (EDT)
+	From: "Eric C. Hagberg" <hagberg@med.cornell.edu>
+	Subject: Fix for A/UX ndbm
+
+	I guess this isn't really a sendmail bug, however, it is something
+	that A/UX users should be aware of when compiling sendmail 8.6.
+
+	Apparently, the calls that sendmail is using to the ndbm routines
+	in A/UX 3.0.x contain calls to "broken" routines, in that the
+	aliases database will break when it gets "just a little big"
+	(sorry I don't have exact numbers here, but it broke somewhere
+	around 20-25 aliases for me.), making all aliases non-functional
+	after exceeding this point.
+
+	What I did was to get the gnu-dbm-1.6 package, compile it, and
+	then re-compile sendmail with "-lgdbm", "-DNDBM", and using the
+	ndbm.h header file that comes with the gnu-package. This makes
+	things behave properly.
+	  [NOTE: see comment above about GDBM]
+
+	I suppose porting the New Berkeley db package is another route,
+	however, I made a quick attempt at it, and found it difficult
+	(not easy at least); the gnu-dbm package "configured" and
+	compiled easily.
+
+SCO Unix
+	From: Thomas Essebier <tom@stallion.oz.au>
+	Organisation:  Stallion Technologies Pty Ltd.
+
+	It will probably help those who are trying to configure sendmail 8.6.9
+	to know that if they are on SCO, they had better set
+		OI-dnsrch
+	or they will core dump as soon as they try to use the resolver.
+	ie. although SCO has _res.dnsrch defined, and is kinda BIND 4.8.3, it
+	does not inititialise it, nor does it understand 'search' in
+	/etc/named.boot.
+		- sigh -
+
+DG/UX
+	Doug Anderson <dlander@afterlife.ncsc.mil> has successfully run
+	V8 on the DG/UX 5.4.2 and 5.4R3.x platforms under heavy usage.
+	Originally, the DG /bin/mail program wasn't compatible with
+	the V8 sendmail, since the DG /bin/mail requires the environment
+	variable "_FORCE_MAIL_LOCAL_=yes" be set.  Version 8.7 now includes
+	this in the environment before invoking the local mailer.  Some
+	have used procmail to avoid this problem in the past.  It works
+	but some have experienced file locking problems with their DG/UX
+	ports of procmail.
+
+Apollo DomainOS
+	If you are compiling on Apollo, you will have to create an empty
+	file "unistd.h" and create a file "dirent.h" containing:
+
+		#include <sys/dir.h>
+		#define dirent	direct
+
+	(The Makefile.DomainOS will attempt to do both of these for you.)
+
+HP-UX 8.00
+	Date: Mon, 24 Jan 1994 13:25:45 +0200
+	From: Kimmo Suominen <Kimmo.Suominen@lut.fi>
+	Subject: 8.6.5 w/ HP-UX 8.00 on s300
+
+	Just compiled and fought with sendmail 8.6.5 on a HP9000/360 (ie. a
+	series 300 machine) running HP-UX 8.00.
+
+	I was getting segmentation fault when delivering to a local user.
+	With debugging I saw it was faulting when doing _free@libc... *sigh*
+	It seems the new implementation of malloc on s300 is buggy as of 8.0,
+	so I tried out the one in -lmalloc (malloc(3X)).  With that it seems
+	to work just dandy.
+
+	When linking, you will get the following error:
+
+	ld: multiply defined symbol _freespace in file /usr/lib/libmalloc.a
+
+	but you can just ignore it.  You might want to add this info to the
+	README file for the future...
+
+Linux
+	Something broke between versions 0.99.13 and 0.99.14 of Linux:
+	the flock() system call gives errors.  If you are running .14,
+	you must not use flock.  You can do this with -DHASFLOCK=0.
+
+	Around the inclusion of bind-4.9.3 & linux libc-4.6.20, the
+	initialization of the _res structure changed.  If /etc/hosts.conf
+	was configured as "hosts, bind" the resolver code could return
+	"Name server failure" errors.  This is supposedly fixed in
+	later versions of libc (>= 4.6.29?), and later versions of
+	sendmail (> 8.6.10) try to work around the problem.
+
+	Some older versions (< 4.6.20?) of the libc/include files conflict
+	with sendmail's version of cdefs.h.  Deleting sendmail's version
+	on those systems should be non-harmful, and new versions don't care.
+
+	Sendmail assumes that libc has snprintf, which has been true since
+	libc 4.7.0.  If you are running an older version, you will need to
+	use -DHASSNPRINTF=0 in the Makefile.  If may be able to use -lbsd
+	(which includes snprintf) instead of turning this off on versions
+	of libc between 4.4.4 and 4.7.0 (snprintf improves security, so
+	you want to use this if at all possible).
+
+	NOTE ON LINUX & BIND:  By default, the Makefiles for linux include
+	header files in /usr/local/include and libraries in /usr/local/lib.
+	If you've installed BIND on your system, the header files typically
+	end up in the search path and you need to add "-lresolv" to the
+	LIBS line in your Makefile.  Really old versions may need to include
+	"-l44bsd" as well (particularly if the link phase complains about
+	missing strcasecmp, strncasecmp or strpbrk).  Complaints about an
+	undefined reference to `__dn_skipname' in domain.o are a sure sign
+	that you need to add -lresolv to LIBS.  Newer versions of linux
+	are basically threaded BIND, so you may or may not see complaints
+	if you accidentally mix BIND headers/libraries with virginal libc.
+	If you have BIND headers in /usr/local/include (resolv.h, etc)
+	you *should* be adding -lresolv to LIBS.  Data structures may change
+	and you'd be asking for a core dump.
+
+AIX 3.x
+	This version of sendmail does not support MB, MG, and MR resource
+	records, which are supported by AIX sendmail.
+
+	Several people have reported that the IBM-supplied named returns
+	fairly random results -- the named should be replaced.  It is not
+	necessary to replace the resolver, which will simplify installation.
+	A new BIND resolver can be found at http://www.isc.org/isc/.
+
+AIX 3.1.x
+	The supplied load average code only works correctly for AIX 3.2.x.
+	For 3.1, use -DLA_TYPE=LA_SUBR and get the latest ``monitor''
+	package by Jussi Maki <jmaki@hut.fi> from ftp.funet.fi in the
+	directory pub/unix/AIX/rs6000/monitor-1.12.tar.Z; use the loadavgd
+	daemon, and the getloadavg subroutine supplied with that package.
+	If you don't care about load average throttling, just turn off
+	load average checking using -DLA_TYPE=LA_ZERO.
+
+AIX 2.2.1
+	Date: Mon Dec  4 14:14:56 CST 1995
+	From: Mark Whetzel <markw@antimatr.houston.tx.us>
+	Subject: Porting sendmail 8.7.2 to AIX V2 on the RT.
+	
+	This version of sendmail does not support MB, MG, and MR resource
+	records, which are supported by AIX sendmail.
+
+	AIX V2 on the RT does not have 'paths.h'.  Create a null
+	file in the 'obj' directory to remove this compile error.
+
+	A patch file is needed to get the BSD 'db' library to compile
+	for AIX/RT.  I have sent the necessary updates to the author,
+	but they may not be immediately available.
+
+	The original AIX/RT resolver libraries are very old, and you
+	should get the latest BIND to replace it.  The 4.8.3 version
+	has been tested, but 4.9.x is out and should work.
+
+	To make the load average code work correctly requires an
+	external routine, as the kernel does not maintain system
+	load averages, similar to AIX V3.1.x.  A reverse port of the
+	older 1.05 'monitor' load average daemon code written by
+	Jussi Maki that will work on AIX V2 for the RT is available
+	by E-mail to Mark Whetzel  <markw@antimatr.houston.tx.us>.
+	That code depends on an external daemon to collect system
+	load information, and the external routine 'getloadavg',
+	that will return that information.  The 'LA_SUBR' define
+	will handle this for AIX V2 on the RT.
+
+	Note: You will have to change the Makefile.AIX.2 to correctly
+	point to the locatons of the updated BIND source tree and
+	the location of the 'newdb' tree and library location.
+	You will also have to change the Makefile.AIX.2 to know
+	about the location of the 'getloadavg' routine if you use
+	the LA_SUBR define.
+
+	
+	Manual pages will format correctly if given the mandoc macros
+	and used with nroff.  I have not tried groff.
+
+RISC/os
+	RISC/os from MIPS is a merged AT&T/Berkeley system.  When you
+	compile on that platform you will get duplicate definitions
+	on many files.  You can ignore these.
+
+System V Release 4 Based Systems
+	There is a single Makefile that is intended for all SVR4-based
+	systems (called Makefile.SVR4).  It defines __svr4__, which is
+	predefined by some compilers.  If your compiler already defines
+	this compile variable, you can delete the definition from the
+	Makefile.
+
+	It's been tested on Dell Issue 2.2.
+
+DELL SVR4
+	Date:      Mon, 06 Dec 1993 10:42:29 EST
+	From: "Kimmo Suominen" <kim@grendel.lut.fi>
+	Message-ID: <2d0352f9.lento29@lento29.UUCP>
+	To: eric@cs.berkeley.edu
+	Cc: sendmail@cs.berkeley.edu
+	Subject:   Notes for DELL SVR4
+
+	Eric,
+
+	Here are some notes for compiling Sendmail 8.6.4 on DELL SVR4.  I ran
+	across these things when helping out some people who contacted me by
+	e-mail.
+
+	1) Use gcc 2.4.5 (or later?).  Dell distributes gcc 2.1 with their
+	   Issue 2.2 Unix.  It is too old, and gives you problems with
+	   clock.c, because sigset_t won't get defined in <sys/signal.h>.
+	   This is due to a problematic protection rule in there, and is
+	   fixed with gcc 2.4.5.
+
+	2) If you don't use the new Berkeley DB (-DNEWDB), then you need
+	   to add "-lc -lucb" to the libraries to link with.  This is because
+	   the -ldbm distributed by Dell needs the bcopy, bcmp and bzero
+	   functions.  It is important that you specify both libraries in
+	   the given order to be sure you only get the BSTRING functions
+	   from the UCB library (and not the signal routines etc.).
+
+	3) Don't leave out "-lelf" even if compiling with "-lc -lucb".
+	   The UCB library also has another copy of the nlist routines,
+	   but we do want the ones from "-lelf".
+
+	If anyone needs a compiled gcc 2.4.5 and/or a ported DB library, they
+	can use anonymous ftp to fetch them from lut.fi in the /kim directory.
+	They are copies of what I use on grendel.lut.fi, and offering them
+	does not imply that I would also support them.  I have sent the DB
+	port for SVR4 back to Keith Bostic for inclusion in the official
+	distribution, but I haven't heard anything from him as of today.
+
+	- gcc-2.4.5-svr4.tar.gz	(gcc 2.4.5 and the corresponding libg++)
+	- db-1.72.tar.gz	(with source, objects and a installed copy)
+
+	Cheers
+	+ Kim
+	--
+	 *  Kimmo.Suominen@lut.fi  *  SysVr4 enthusiast at GRENDEL.LUT.FI  *
+	*    KIM@FINFILES.BITNET   *  Postmaster and Hostmaster at LUT.FI   *
+	 *    + 358 200 865 718    *  Unix area moderator at NIC.FUNET.FI  *
+
+ConvexOS 10.1 and below
+	In order to use the name server, you must create the file
+	/etc/use_nameserver.  If this file does not exist, the call
+	to res_init() will fail and you will have absolutely no
+	access to DNS, including MX records.
+
+Amdahl UTS 2.1.5
+	In order to get UTS to work, you will have to port BIND 4.9.
+	The vendor's BIND is reported to be ``totally inadequate.''
+	See sendmail/contrib/AmdahlUTS.patch for the patches necessary
+	to get BIND 4.9 compiled for UTS.
+
+UnixWare 2.0
+	According to Alexander Kolbasov <sasha@unitech.gamma.ru>,
+	the m4 on UnixWare 2.0 (still in Beta) will core dump on the
+	config files.  GNU m4 and the m4 from UnixWare 1.x both work.
+
+UNICOS 8.0.3.4
+	Some people have reported that the -O flag on UNICOS can cause
+	problems.  You may want to turn this off if you have problems
+	running sendmail.  Reported by Jerry G. DeLapp <jgd@acl.lanl.gov>.
+
+Non-DNS based sites
+	This version of sendmail always tries to connect to the Domain
+	Name System (DNS) to resolve names, regardless of the setting
+	of the `I' option.  On most systems that are not running DNS,
+	this will fail quickly and sendmail will continue, but on some
+	systems it has a long timeout.  If you have this problem, you
+	will have to recompile without NAMED_BIND.  Some people have
+	claimed that they have successfully used "OI+USEVC" to force
+	sendmail to use a virtual circuit -- this will always time out
+	quickly, but also tells sendmail that a failed connection
+	should requeue the message (probably not what you intended).
+	A future release of sendmail will correct this problem.
+
+Both NEWDB and NDBM
+	If you use both -DNDBM and -DNEWDB, you must delete the module
+	ndbm.o from libdb.a and delete the file "ndbm.h" from the files
+	that get installed (that is, use the OLD ndbm.h, not the new
+	ndbm.h).  This compatibility module maps ndbm calls into DB
+	calls, and breaks things rather badly.
+
+GNU getopt
+	I'm told that GNU getopt has a problem in that it gets confused
+	by the double call.  Use the version in conf.c instead.
+
+BIND 4.9.2 and Ultrix
+	If you are running on Ultrix, be sure you read conf/Info.Ultrix
+	in the BIND distribution very carefully -- there is information
+	in there that you need to know in order to avoid errors of the
+	form:
+
+		/lib/libc.a(gethostent.o): sethostent: multiply defined
+		/lib/libc.a(gethostent.o): endhostent: multiply defined
+		/lib/libc.a(gethostent.o): gethostbyname: multiply defined
+		/lib/libc.a(gethostent.o): gethostbyaddr: multiply defined
+
+	during the link stage.
+
+strtoul
+	Some compilers (notably gcc) claim to be ANSI C but do not
+	include the ANSI-required routine "strtoul".  If your compiler
+	has this problem, you will get an error in srvrsmtp.c on the
+	code:
+
+	  # ifdef defined(__STDC__) && !defined(BROKEN_ANSI_LIBRARY)
+			e->e_msgsize = strtoul(vp, (char **) NULL, 10);
+	  # else
+			e->e_msgsize = strtol(vp, (char **) NULL, 10);
+	  # endif
+
+	You can use -DBROKEN_ANSI_LIBRARY to get around this problem.
+
+Listproc 6.0c
+	Date: 23 Sep 1995 23:56:07 GMT
+	Message-ID: <95925101334.~INN-AUMa00187.comp-news@dl.ac.uk>
+	From: alansz@mellers1.psych.berkeley.edu (Alan Schwartz)
+	Subject: Listproc 6.0c + Sendmail 8.7 [Helpful hint]
+
+	Just upgraded to sendmail 8.7, and discovered that listproc 6.0c
+	breaks, because it, by default, sends a blank "HELO" rather than
+	a "HELO hostname" when using the 'system' or 'telnet' mailmethod.
+
+	The fix is to include -DZMAILER in the compilation, which will
+	cause it to use "HELO hostname" (which Z-mail apparently requires
+	as well. :)
+
+LDAP
+	LDAP was provided by Booker Bense <bbense@networking.stanford.edu> of
+	Stanford University.  From Booker:
+
+	  - The patch attached to this message implements an Ldap map class.
+	    Currently we are using this at stanford to support campus-wide
+	    email addressing. This project is discussed at
+	    http://www-leland.stanford.edu/group/networking/project/sunetid.html
+
+	  - Currently we are using the ldap map as follows:
+
+		Kluser ldapx
+		    -h"localhost borax.stanford.edu borate.stanford.edu boron.stanford.edu"
+		    -k"mailacceptinggeneralid=%s" -v maildrop
+
+	    and in Rule set S5
+
+		# Now attempt to lookup in luser (ldap map)
+		R< $L > $+		$: < $L > $( luser $1 $)
+		R< $*  > $+ @ $+	$: < $3 > $2		Rewrite if forward
+
+	  - The map definition supports most of the standard Map args plus most
+	    of the command line options of ldapsearch. The software is currently
+	    limited to only accepting the first entry returned. It expects that
+	    the map defines an ldap filter that returns at most 1 valid entry.
+	    It requires the ldap and lber libraries from the Umich Ldap3.2
+	    release.
+
+	    I've tested the software on Solaris.2.4 with gcc and on NeXTStep3.2
+	    and it runs without problems. If you have any questions, please
+	    send them along.
+
+TCP Wrappers
+	If you are using -DTCPWRAPPERS to get TCP Wrappers support you will
+	also need to install libwrap.a and modify the Makefile to include
+	-lwrap in the LIBS line (make sure that INCDIRS and LIBDIRS point
+	to where the tcpd.h and libwrap.a can be found).
+
+	TCP Wrappers is available on ftp.win.tue.nl in /pub/security;
+	grab tcp_wrappers_<VER>.tar.gz (where <VER> is the highest
+	numbered version).
+
+	If you have alternate MX sites for your site, be sure that all of
+	your MX sites reject the same set of hosts.  If not, a bad guy whom
+	you reject will connect to your site, fail, and move on to the next
+	MX site, which will accept the mail for you and forward it on to you.
+
+
++--------------+
+| MANUAL PAGES |
++--------------+
+
+The manual pages have been written against the -mandoc macros
+instead of the -man macros.  The latest version of groff has them
+included.  You can also get a copy from FTP.UU.NET in directory
+/systems/unix/bsd-sources/share/tmac.
+
+
++-----------------+
+| DEBUGGING HOOKS |
++-----------------+
+
+As of 8.6.5, sendmail daemons will catch a SIGUSR1 signal and log
+some debugging output (logged at LOG_DEBUG severity).  The
+information dumped is:
+
+ * The value of the $j macro.
+ * A warning if $j is not in the set $=w.
+ * A list of the open file descriptors.
+ * The contents of the connection cache.
+ * If ruleset 89 is defined, it is evaluated and the results printed.
+
+This allows you to get information regarding the runtime state of the
+daemon on the fly.  This should not be done too frequently, since
+the process of rewriting may lose memory which will not be recovered.
+Also, ruleset 89 may call non-reentrant routines, so there is a small
+non-zero probability that this will cause other problems.  It is
+really only for debugging serious problems.
+
+A typical formulation of ruleset 89 would be:
+
+	R$*		$@ $>0 some test address
+
+
++-----------------------------+
+| DESCRIPTION OF SOURCE FILES |
++-----------------------------+
+
+The following list describes the files in this directory:
+
+Makefile	The makefile used here; this version only works with
+		the new Berkeley make.
+Makefile.dist	A trimmed down version of the makefile that works with
+		the old make.
+READ_ME		This file.
+TRACEFLAGS	My own personal list of the trace flags -- not guaranteed
+		to be particularly up to date.
+alias.c		Does name aliasing in all forms.
+arpadate.c	A subroutine which creates ARPANET standard dates.
+clock.c		Routines to implement real-time oriented functions
+		in sendmail -- e.g., timeouts.
+collect.c	The routine that actually reads the mail into a temp
+		file.  It also does a certain amount of parsing of
+		the header, etc.
+conf.c		The configuration file.  This contains information
+		that is presumed to be quite static and non-
+		controversial, or code compiled in for efficiency
+		reasons.  Most of the configuration is in sendmail.cf.
+conf.h		Configuration that must be known everywhere.
+convtime.c	A routine to sanely process times.
+daemon.c	Routines to implement daemon mode.  This version is
+		specifically for Berkeley 4.1 IPC.
+deliver.c	Routines to deliver mail.
+domain.c	Routines that interface with DNS (the Domain Name
+		System).
+err.c		Routines to print error messages.
+envelope.c	Routines to manipulate the envelope structure.
+headers.c	Routines to process message headers.
+macro.c		The macro expander.  This is used internally to
+		insert information from the configuration file.
+main.c		The main routine to sendmail.  This file also
+		contains some miscellaneous routines.
+map.c		Support for database maps.
+mci.c		Routines that handle mail connection information caching.
+mime.c		MIME conversion routines.
+parseaddr.c	The routines which do address parsing.
+queue.c		Routines to implement message queueing.
+readcf.c	The routine that reads the configuration file and
+		translates it to internal form.
+recipient.c	Routines that manipulate the recipient list.
+safefile.c	Routines to do careful checking of file modes and permissions
+		when opening or creating files.
+savemail.c	Routines which save the letter on processing errors.
+sendmail.h	Main header file for sendmail.
+srvrsmtp.c	Routines to implement server SMTP.
+stab.c		Routines to manage the symbol table.
+stats.c		Routines to collect and post the statistics.
+sysexits.c	List of error messages associated with error codes
+		in sysexits.h.
+trace.c		The trace package.  These routines allow setting and
+		testing of trace flags with a high granularity.
+udb.c		The user database interface module.
+usersmtp.c	Routines to implement user SMTP.
+util.c		Some general purpose routines used by sendmail.
+version.c	The version number and information about this
+		version of sendmail.  Theoretically, this gets
+		modified on every change.
+
+Eric Allman
+
+(Version 8.156, last update 10/23/97 12:53:12)
diff --git a/src/TRACEFLAGS b/src/TRACEFLAGS
new file mode 100644
index 0000000..db461db
--- /dev/null
+++ b/src/TRACEFLAGS
@@ -0,0 +1,77 @@
+0, 1	main.c		main	skip background fork
+0, 4	main.c		main	canonical name, UUCP node name, a.k.a.s
+0, 15	main.c		main	print configuration
+0, 44	util.c		printav	print address of each string
+1	main.c		main	print from person
+2	main.c		finis
+3	conf.c		getla, shouldqueue
+4	conf.c		enoughspace
+5	clock.c		setevent, clrevent, tick
+6	savemail.c	savemail, returntosender
+7	queue.c		queuename
+8	domain.c	getmxrr, getcanonname
+9	daemon.c	getauthinfo	IDENT protocol
+9	daemon.c	maphostname
+10	deliver.c	deliver
+11	deliver.c	openmailer, mailfile
+12	parseaddr.c	remotename
+13	deliver.c	sendall, sendenvelope
+14	headers.c	commaize
+15	daemon.c	getrequests
+16	daemon.c	makeconnection
+17	deliver.c	hostsignature
+17	domain.c	mxrand
+18	usersmtp.c	reply, smtpmessage, smtpinit, smtpmailfrom
+19	srvrsmtp.c	smtp
+20	parseaddr.c	parseaddr
+21	parseaddr.c	rewrite
+22	parseaddr.c	prescan
+24	parseaddr.c	buildaddr, allocaddr
+25	recipient.c	sendtolist
+26	recipient.c	recipient
+27	alias.c		alias
+27	alias.c		readaliases
+27	alias.c		forward
+27	recipient.c	include
+28	udb.c		udbexpand, udbsender
+29	parseaddr.c	maplocaluser
+29	recipient.c	recipient (local users), finduser
+30	collect.c	collect
+30	collect.c	eatfrom
+31	headers.c	chompheader
+32	headers.c	eatheader
+33	headers.c	crackaddr
+34	headers.c	putheader
+35	macro.c		expand, define
+36	stab.c		stab
+37	readcf.c	(many)
+38	map.c		initmaps
+39	map.c		map_rewrite
+40	queue.c		queueup, orderq, dowork
+41	queue.c		orderq
+42	mci.c		mci_get
+43	mime.c		mime8to7
+44	recipient.c	writeable
+44	safefile.c	safefile, safedirpath, filechanged
+45	envelope.c	setsender
+46	envelope.c	openxscript
+47	main.c		drop_privileges
+48	parseaddr.c	rscheck
+48	conf.c		validate_connection
+49	conf.c		checkcompat
+50	envelope.c	dropenvelope
+51	queue.c		unlockqueue
+52	main.c		disconnect
+53	util.c		xfclose
+54	err.c		putoutmsg
+55	conf.c		lockfile
+56	mci.c		persistent host status
+57	util.c		snprintf
+60	map.c
+61	conf.c		sm_gethostbyname
+62	multiple	file descriptor checking
+80			content length
+81			sun remote mode
+91	mci.c		syslogging of MCI cache information
+94	srvrsmtp.c	cause commands to fail (for protocol testing)
+99	main.c		avoid backgrounding (no printed output)
diff --git a/src/alias.c b/src/alias.c
new file mode 100644
index 0000000..cebd805
--- /dev/null
+++ b/src/alias.c
@@ -0,0 +1,871 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+# include "sendmail.h"
+
+#ifndef lint
+static char sccsid[] = "@(#)alias.c	8.73 (Berkeley) 5/8/97";
+#endif /* not lint */
+
+
+MAP	*AliasFileMap = NULL;	/* the actual aliases.files map */
+int	NAliasFileMaps;		/* the number of entries in AliasFileMap */
+/*
+**  ALIAS -- Compute aliases.
+**
+**	Scans the alias file for an alias for the given address.
+**	If found, it arranges to deliver to the alias list instead.
+**	Uses libdbm database if -DDBM.
+**
+**	Parameters:
+**		a -- address to alias.
+**		sendq -- a pointer to the head of the send queue
+**			to put the aliases in.
+**		aliaslevel -- the current alias nesting depth.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		Aliases found are expanded.
+**
+**	Deficiencies:
+**		It should complain about names that are aliased to
+**			nothing.
+*/
+
+void
+alias(a, sendq, aliaslevel, e)
+	register ADDRESS *a;
+	ADDRESS **sendq;
+	int aliaslevel;
+	register ENVELOPE *e;
+{
+	register char *p;
+	char *owner;
+	auto int stat = EX_OK;
+	char obuf[MAXNAME + 7];
+	extern char *aliaslookup();
+
+	if (tTd(27, 1))
+		printf("alias(%s)\n", a->q_user);
+
+	/* don't realias already aliased names */
+	if (bitset(QDONTSEND|QBADADDR|QVERIFIED, a->q_flags))
+		return;
+
+	if (NoAlias)
+		return;
+
+	e->e_to = a->q_paddr;
+
+	/*
+	**  Look up this name.
+	**
+	**	If the map was unavailable, we will queue this message
+	**	until the map becomes available; otherwise, we could
+	**	bounce messages inappropriately.
+	*/
+
+	p = aliaslookup(a->q_user, &stat, e);
+	if (stat == EX_TEMPFAIL || stat == EX_UNAVAILABLE)
+	{
+		a->q_flags |= QQUEUEUP;
+		if (e->e_message == NULL)
+			e->e_message = "alias database unavailable";
+		return;
+	}
+	if (p == NULL)
+		return;
+
+	/*
+	**  Match on Alias.
+	**	Deliver to the target list.
+	*/
+
+	if (tTd(27, 1))
+		printf("%s (%s, %s) aliased to %s\n",
+		    a->q_paddr, a->q_host, a->q_user, p);
+	if (bitset(EF_VRFYONLY, e->e_flags))
+	{
+		a->q_flags |= QVERIFIED;
+		return;
+	}
+	message("aliased to %s", shortenstring(p, 203));
+	if (LogLevel > 9)
+		sm_syslog(LOG_INFO, e->e_id,
+			"alias %.100s => %s",
+			a->q_paddr, shortenstring(p, 203));
+	a->q_flags &= ~QSELFREF;
+	if (tTd(27, 5))
+	{
+		printf("alias: QDONTSEND ");
+		printaddr(a, FALSE);
+	}
+	a->q_flags |= QDONTSEND;
+	(void) sendtolist(p, a, sendq, aliaslevel + 1, e);
+	if (bitset(QSELFREF, a->q_flags))
+		a->q_flags &= ~QDONTSEND;
+
+	/*
+	**  Look for owner of alias
+	*/
+
+	(void) strcpy(obuf, "owner-");
+	if (strncmp(a->q_user, "owner-", 6) == 0 ||
+	    strlen(a->q_user) > (SIZE_T) sizeof obuf - 7)
+		(void) strcat(obuf, "owner");
+	else
+		(void) strcat(obuf, a->q_user);
+	owner = aliaslookup(obuf, &stat, e);
+	if (owner == NULL)
+		return;
+
+	/* reflect owner into envelope sender */
+	if (strpbrk(owner, ",:/|\"") != NULL)
+		owner = obuf;
+	a->q_owner = newstr(owner);
+
+	/* announce delivery to this alias; NORECEIPT bit set later */
+	if (e->e_xfp != NULL)
+		fprintf(e->e_xfp, "Message delivered to mailing list %s\n",
+			a->q_paddr);
+	e->e_flags |= EF_SENDRECEIPT;
+	a->q_flags |= QDELIVERED|QEXPANDED;
+}
+/*
+**  ALIASLOOKUP -- look up a name in the alias file.
+**
+**	Parameters:
+**		name -- the name to look up.
+**		pstat -- a pointer to a place to put the status.
+**		e -- the current envelope.
+**
+**	Returns:
+**		the value of name.
+**		NULL if unknown.
+**
+**	Side Effects:
+**		none.
+**
+**	Warnings:
+**		The return value will be trashed across calls.
+*/
+
+char *
+aliaslookup(name, pstat, e)
+	char *name;
+	int *pstat;
+	ENVELOPE *e;
+{
+	static MAP *map = NULL;
+
+	if (map == NULL)
+	{
+		STAB *s = stab("aliases", ST_MAP, ST_FIND);
+
+		if (s == NULL)
+			return NULL;
+		map = &s->s_map;
+	}
+	if (!bitset(MF_OPEN, map->map_mflags))
+		return NULL;
+
+	/* special case POstMastER -- always use lower case */
+	if (strcasecmp(name, "postmaster") == 0)
+		name = "postmaster";
+
+	return (*map->map_class->map_lookup)(map, name, NULL, pstat);
+}
+/*
+**  SETALIAS -- set up an alias map
+**
+**	Called when reading configuration file.
+**
+**	Parameters:
+**		spec -- the alias specification
+**
+**	Returns:
+**		none.
+*/
+
+void
+setalias(spec)
+	char *spec;
+{
+	register char *p;
+	register MAP *map;
+	char *class;
+	STAB *s;
+
+	if (tTd(27, 8))
+		printf("setalias(%s)\n", spec);
+
+	for (p = spec; p != NULL; )
+	{
+		char buf[50];
+
+		while (isspace(*p))
+			p++;
+		if (*p == '\0')
+			break;
+		spec = p;
+
+		if (NAliasFileMaps >= MAXMAPSTACK)
+		{
+			syserr("Too many alias databases defined, %d max",
+				MAXMAPSTACK);
+			return;
+		}
+		if (AliasFileMap == NULL)
+		{
+			strcpy(buf, "aliases.files sequence");
+			AliasFileMap = makemapentry(buf);
+			if (AliasFileMap == NULL)
+			{
+				syserr("setalias: cannot create aliases.files map");
+				return;
+			}
+		}
+		(void) snprintf(buf, sizeof buf, "Alias%d", NAliasFileMaps);
+		s = stab(buf, ST_MAP, ST_ENTER);
+		map = &s->s_map;
+		bzero(map, sizeof *map);
+		map->map_mname = s->s_name;
+
+		p = strpbrk(p, " ,/:");
+		if (p != NULL && *p == ':')
+		{
+			/* map name */
+			*p++ = '\0';
+			class = spec;
+			spec = p;
+		}
+		else
+		{
+			class = "implicit";
+			map->map_mflags = MF_INCLNULL;
+		}
+
+		/* find end of spec */
+		if (p != NULL)
+			p = strchr(p, ',');
+		if (p != NULL)
+			*p++ = '\0';
+
+		if (tTd(27, 20))
+			printf("  map %s:%s %s\n", class, s->s_name, spec);
+
+		/* look up class */
+		s = stab(class, ST_MAPCLASS, ST_FIND);
+		if (s == NULL)
+		{
+			syserr("setalias: unknown alias class %s", class);
+		}
+		else if (!bitset(MCF_ALIASOK, s->s_mapclass.map_cflags))
+		{
+			syserr("setalias: map class %s can't handle aliases",
+				class);
+		}
+		else
+		{
+			map->map_class = &s->s_mapclass;
+			if (map->map_class->map_parse(map, spec))
+			{
+				map->map_mflags |= MF_VALID|MF_ALIAS;
+				AliasFileMap->map_stack[NAliasFileMaps++] = map;
+			}
+		}
+	}
+}
+/*
+**  ALIASWAIT -- wait for distinguished @:@ token to appear.
+**
+**	This can decide to reopen or rebuild the alias file
+**
+**	Parameters:
+**		map -- a pointer to the map descriptor for this alias file.
+**		ext -- the filename extension (e.g., ".db") for the
+**			database file.
+**		isopen -- if set, the database is already open, and we
+**			should check for validity; otherwise, we are
+**			just checking to see if it should be created.
+**
+**	Returns:
+**		TRUE -- if the database is open when we return.
+**		FALSE -- if the database is closed when we return.
+*/
+
+bool
+aliaswait(map, ext, isopen)
+	MAP *map;
+	char *ext;
+	int isopen;
+{
+	bool attimeout = FALSE;
+	time_t mtime;
+	struct stat stb;
+	char buf[MAXNAME + 1];
+
+	if (tTd(27, 3))
+		printf("aliaswait(%s:%s)\n",
+			map->map_class->map_cname, map->map_file);
+	if (bitset(MF_ALIASWAIT, map->map_mflags))
+		return isopen;
+	map->map_mflags |= MF_ALIASWAIT;
+
+	if (SafeAlias > 0)
+	{
+		auto int st;
+		time_t toolong = curtime() + SafeAlias;
+		unsigned int sleeptime = 2;
+
+		while (isopen &&
+		       map->map_class->map_lookup(map, "@", NULL, &st) == NULL)
+		{
+			if (curtime() > toolong)
+			{
+				/* we timed out */
+				attimeout = TRUE;
+				break;
+			}
+
+			/*
+			**  Close and re-open the alias database in case
+			**  the one is mv'ed instead of cp'ed in.
+			*/
+
+			if (tTd(27, 2))
+				printf("aliaswait: sleeping for %d seconds\n",
+					sleeptime);
+
+			map->map_class->map_close(map);
+			map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
+			sleep(sleeptime);
+			sleeptime *= 2;
+			if (sleeptime > 60)
+				sleeptime = 60;
+			isopen = map->map_class->map_open(map, O_RDONLY);
+		}
+	}
+
+	/* see if we need to go into auto-rebuild mode */
+	if (!bitset(MCF_REBUILDABLE, map->map_class->map_cflags))
+	{
+		if (tTd(27, 3))
+			printf("aliaswait: not rebuildable\n");
+		map->map_mflags &= ~MF_ALIASWAIT;
+		return isopen;
+	}
+	if (stat(map->map_file, &stb) < 0)
+	{
+		if (tTd(27, 3))
+			printf("aliaswait: no source file\n");
+		map->map_mflags &= ~MF_ALIASWAIT;
+		return isopen;
+	}
+	mtime = stb.st_mtime;
+	snprintf(buf, sizeof buf, "%s%s",
+		map->map_file, ext == NULL ? "" : ext);
+	if (stat(buf, &stb) < 0 || stb.st_mtime < mtime || attimeout)
+	{
+		/* database is out of date */
+		if (AutoRebuild && stb.st_ino != 0 && stb.st_uid == geteuid())
+		{
+			bool oldSuprErrs;
+
+			message("auto-rebuilding alias database %s", buf);
+			oldSuprErrs = SuprErrs;
+			SuprErrs = TRUE;
+			if (isopen)
+			{
+				map->map_class->map_close(map);
+				map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
+			}
+			rebuildaliases(map, TRUE);
+			isopen = map->map_class->map_open(map, O_RDONLY);
+			SuprErrs = oldSuprErrs;
+		}
+		else
+		{
+			if (LogLevel > 3)
+				sm_syslog(LOG_INFO, NOQID,
+					"alias database %s out of date",
+					buf);
+			message("Warning: alias database %s out of date", buf);
+		}
+	}
+	map->map_mflags &= ~MF_ALIASWAIT;
+	return isopen;
+}
+/*
+**  REBUILDALIASES -- rebuild the alias database.
+**
+**	Parameters:
+**		map -- the database to rebuild.
+**		automatic -- set if this was automatically generated.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Reads the text version of the database, builds the
+**		DBM or DB version.
+*/
+
+void
+rebuildaliases(map, automatic)
+	register MAP *map;
+	bool automatic;
+{
+	FILE *af;
+	bool nolock = FALSE;
+	int sff = SFF_OPENASROOT|SFF_REGONLY|SFF_NOLOCK|SFF_NOWLINK|SFF_NOWFILES;
+	sigfunc_t oldsigint, oldsigquit;
+#ifdef SIGTSTP
+	sigfunc_t oldsigtstp;
+#endif
+
+	if (!bitset(MCF_REBUILDABLE, map->map_class->map_cflags))
+		return;
+
+	/* try to lock the source file */
+	if ((af = safefopen(map->map_file, O_RDWR, 0, sff)) == NULL)
+	{
+		struct stat stb;
+
+		if ((errno != EACCES && errno != EROFS) || automatic ||
+		    (af = safefopen(map->map_file, O_RDONLY, 0, sff)) == NULL)
+		{
+			int saveerr = errno;
+
+			if (tTd(27, 1))
+				printf("Can't open %s: %s\n",
+					map->map_file, errstring(saveerr));
+			if (!automatic && !bitset(MF_OPTIONAL, map->map_mflags))
+				message("newaliases: cannot open %s: %s",
+					map->map_file, errstring(saveerr));
+			errno = 0;
+			return;
+		}
+		nolock = TRUE;
+		if (tTd(27, 1) ||
+		    fstat(fileno(af), &stb) < 0 ||
+		    bitset(S_IWUSR|S_IWGRP|S_IWOTH, stb.st_mode))
+			message("warning: cannot lock %s: %s",
+				map->map_file, errstring(errno));
+	}
+
+	/* see if someone else is rebuilding the alias file */
+	if (!nolock &&
+	    !lockfile(fileno(af), map->map_file, NULL, LOCK_EX|LOCK_NB))
+	{
+		/* yes, they are -- wait until done */
+		message("Alias file %s is locked (maybe being rebuilt)",
+			map->map_file);
+		if (OpMode != MD_INITALIAS)
+		{
+			/* wait for other rebuild to complete */
+			(void) lockfile(fileno(af), map->map_file, NULL,
+					LOCK_EX);
+		}
+		(void) xfclose(af, "rebuildaliases1", map->map_file);
+		errno = 0;
+		return;
+	}
+
+	oldsigint = setsignal(SIGINT, SIG_IGN);
+	oldsigquit = setsignal(SIGQUIT, SIG_IGN);
+#ifdef SIGTSTP
+	oldsigtstp = setsignal(SIGTSTP, SIG_IGN);
+#endif
+
+	if (map->map_class->map_open(map, O_RDWR))
+	{
+		if (LogLevel > 7)
+		{
+			sm_syslog(LOG_NOTICE, NOQID,
+				"alias database %s %srebuilt by %s",
+				map->map_file, automatic ? "auto" : "",
+				username());
+		}
+		map->map_mflags |= MF_OPEN|MF_WRITABLE;
+		readaliases(map, af, !automatic, TRUE);
+	}
+	else
+	{
+		if (tTd(27, 1))
+			printf("Can't create database for %s: %s\n",
+				map->map_file, errstring(errno));
+		if (!automatic)
+			syserr("Cannot create database for alias file %s",
+				map->map_file);
+	}
+
+	/* close the file, thus releasing locks */
+	xfclose(af, "rebuildaliases2", map->map_file);
+
+	/* add distinguished entries and close the database */
+	if (bitset(MF_OPEN, map->map_mflags))
+	{
+		map->map_class->map_close(map);
+		map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
+	}
+
+	/* restore the old signals */
+	(void) setsignal(SIGINT, oldsigint);
+	(void) setsignal(SIGQUIT, oldsigquit);
+#ifdef SIGTSTP
+	(void) setsignal(SIGTSTP, oldsigtstp);
+#endif
+}
+/*
+**  READALIASES -- read and process the alias file.
+**
+**	This routine implements the part of initaliases that occurs
+**	when we are not going to use the DBM stuff.
+**
+**	Parameters:
+**		map -- the alias database descriptor.
+**		af -- file to read the aliases from.
+**		announcestats -- anounce statistics regarding number of
+**			aliases, longest alias, etc.
+**		logstats -- lot the same info.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Reads aliasfile into the symbol table.
+**		Optionally, builds the .dir & .pag files.
+*/
+
+void
+readaliases(map, af, announcestats, logstats)
+	register MAP *map;
+	FILE *af;
+	bool announcestats;
+	bool logstats;
+{
+	register char *p;
+	char *rhs;
+	bool skipping;
+	long naliases, bytes, longest;
+	ADDRESS al, bl;
+	char line[BUFSIZ];
+
+	/*
+	**  Read and interpret lines
+	*/
+
+	FileName = map->map_file;
+	LineNumber = 0;
+	naliases = bytes = longest = 0;
+	skipping = FALSE;
+	while (fgets(line, sizeof (line), af) != NULL)
+	{
+		int lhssize, rhssize;
+		int c;
+
+		LineNumber++;
+		p = strchr(line, '\n');
+#if _FFR_BACKSLASH_IN_ALIASES
+		while (p != NULL && p > line && p[-1] == '\\')
+		{
+			p--;
+			if (fgets(p, SPACELEFT(line, p), af) == NULL)
+				break;
+			p = strchr(p, '\n');
+		}
+#endif
+		if (p != NULL)
+			*p = '\0';
+		else if (!feof(af))
+		{
+			syserr("554 alias line too long");
+
+			/* flush to end of line */
+			while ((c = getc(af)) != EOF && c != '\n')
+				continue;
+
+			/* skip any continuation lines */
+			skipping = TRUE;
+			continue;
+		}
+		switch (line[0])
+		{
+		  case '#':
+		  case '\0':
+			skipping = FALSE;
+			continue;
+
+		  case ' ':
+		  case '\t':
+			if (!skipping)
+				syserr("554 Non-continuation line starts with space");
+			skipping = TRUE;
+			continue;
+		}
+		skipping = FALSE;
+
+		/*
+		**  Process the LHS
+		**	Find the colon separator, and parse the address.
+		**	It should resolve to a local name -- this will
+		**	be checked later (we want to optionally do
+		**	parsing of the RHS first to maximize error
+		**	detection).
+		*/
+
+		for (p = line; *p != '\0' && *p != ':' && *p != '\n'; p++)
+			continue;
+		if (*p++ != ':')
+		{
+			syserr("554 missing colon");
+			continue;
+		}
+		if (parseaddr(line, &al, RF_COPYALL, ':', NULL, CurEnv) == NULL)
+		{
+			syserr("554 %.40s... illegal alias name", line);
+			continue;
+		}
+
+		/*
+		**  Process the RHS.
+		**	'al' is the internal form of the LHS address.
+		**	'p' points to the text of the RHS.
+		*/
+
+		while (isascii(*p) && isspace(*p))
+			p++;
+		rhs = p;
+		for (;;)
+		{
+			register char *nlp;
+
+			nlp = &p[strlen(p)];
+			if (nlp[-1] == '\n')
+				*--nlp = '\0';
+
+			if (CheckAliases)
+			{
+				/* do parsing & compression of addresses */
+				while (*p != '\0')
+				{
+					auto char *delimptr;
+
+					while ((isascii(*p) && isspace(*p)) ||
+								*p == ',')
+						p++;
+					if (*p == '\0')
+						break;
+					if (parseaddr(p, &bl, RF_COPYNONE, ',',
+						      &delimptr, CurEnv) == NULL)
+						usrerr("553 %s... bad address", p);
+					p = delimptr;
+				}
+			}
+			else
+			{
+				p = nlp;
+			}
+
+			/* see if there should be a continuation line */
+			c = getc(af);
+			if (!feof(af))
+				(void) ungetc(c, af);
+			if (c != ' ' && c != '\t')
+				break;
+
+			/* read continuation line */
+			if (fgets(p, sizeof line - (p - line), af) == NULL)
+				break;
+			LineNumber++;
+
+			/* check for line overflow */
+			if (strchr(p, '\n') == NULL && !feof(af))
+			{
+				usrerr("554 alias too long");
+				while ((c = fgetc(af)) != EOF && c != '\n')
+					continue;
+				skipping = TRUE;
+				break;
+			}
+		}
+
+		if (skipping)
+			continue;
+
+		if (!bitnset(M_ALIASABLE, al.q_mailer->m_flags))
+		{
+			syserr("554 %s... cannot alias non-local names",
+				al.q_paddr);
+			continue;
+		}
+
+		/*
+		**  Insert alias into symbol table or database file.
+		**
+		**	Special case pOStmaStER -- always make it lower case.
+		*/
+
+		if (strcasecmp(al.q_user, "postmaster") == 0)
+			makelower(al.q_user);
+
+		lhssize = strlen(al.q_user);
+		rhssize = strlen(rhs);
+		map->map_class->map_store(map, al.q_user, rhs);
+
+		if (al.q_paddr != NULL)
+			free(al.q_paddr);
+		if (al.q_host != NULL)
+			free(al.q_host);
+		if (al.q_user != NULL)
+			free(al.q_user);
+
+		/* statistics */
+		naliases++;
+		bytes += lhssize + rhssize;
+		if (rhssize > longest)
+			longest = rhssize;
+	}
+
+	CurEnv->e_to = NULL;
+	FileName = NULL;
+	if (Verbose || announcestats)
+		message("%s: %d aliases, longest %d bytes, %d bytes total",
+			map->map_file, naliases, longest, bytes);
+	if (LogLevel > 7 && logstats)
+		sm_syslog(LOG_INFO, NOQID,
+			"%s: %d aliases, longest %d bytes, %d bytes total",
+			map->map_file, naliases, longest, bytes);
+}
+/*
+**  FORWARD -- Try to forward mail
+**
+**	This is similar but not identical to aliasing.
+**
+**	Parameters:
+**		user -- the name of the user who's mail we would like
+**			to forward to.  It must have been verified --
+**			i.e., the q_home field must have been filled
+**			in.
+**		sendq -- a pointer to the head of the send queue to
+**			put this user's aliases in.
+**		aliaslevel -- the current alias nesting depth.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		New names are added to send queues.
+*/
+
+void
+forward(user, sendq, aliaslevel, e)
+	ADDRESS *user;
+	ADDRESS **sendq;
+	int aliaslevel;
+	register ENVELOPE *e;
+{
+	char *pp;
+	char *ep;
+	bool got_transient;
+
+	if (tTd(27, 1))
+		printf("forward(%s)\n", user->q_paddr);
+
+	if (!bitnset(M_HASPWENT, user->q_mailer->m_flags) ||
+	    bitset(QBADADDR, user->q_flags))
+		return;
+	if (user->q_home == NULL)
+	{
+		syserr("554 forward: no home");
+		user->q_home = "/no/such/directory";
+	}
+
+	/* good address -- look for .forward file in home */
+	define('z', user->q_home, e);
+	define('u', user->q_user, e);
+	define('h', user->q_host, e);
+	if (ForwardPath == NULL)
+		ForwardPath = newstr("\201z/.forward");
+
+	got_transient = FALSE;
+	for (pp = ForwardPath; pp != NULL; pp = ep)
+	{
+		int err;
+		char buf[MAXPATHLEN+1];
+
+		ep = strchr(pp, ':');
+		if (ep != NULL)
+			*ep = '\0';
+		expand(pp, buf, sizeof buf, e);
+		if (ep != NULL)
+			*ep++ = ':';
+		if (buf[0] == '\0')
+			continue;
+		if (tTd(27, 3))
+			printf("forward: trying %s\n", buf);
+
+		err = include(buf, TRUE, user, sendq, aliaslevel, e);
+		if (err == 0)
+			break;
+		else if (transienterror(err))
+		{
+			/* we may have to suspend this message */
+			got_transient = TRUE;
+			if (tTd(27, 2))
+				printf("forward: transient error on %s\n", buf);
+			if (LogLevel > 2)
+				sm_syslog(LOG_ERR, e->e_id,
+					"forward %s: transient error: %s",
+					buf, errstring(err));
+		}
+	}
+	if (pp == NULL && got_transient)
+	{
+		/*
+		**  There was no successful .forward open and at least one
+		**  transient open.  We have to defer this address for
+		**  further delivery.
+		*/
+
+		message("transient .forward open error: message queued");
+		user->q_flags |= QQUEUEUP;
+		return;
+	}
+}
diff --git a/src/aliases b/src/aliases
new file mode 100644
index 0000000..7540eea
--- /dev/null
+++ b/src/aliases
@@ -0,0 +1,53 @@
+#
+#	@(#)aliases	8.2 (Berkeley) 3/5/94
+#
+#  Aliases in this file will NOT be expanded in the header from
+#  Mail, but WILL be visible over networks or from /bin/mail.
+#
+#	>>>>>>>>>>	The program "newaliases" must be run after
+#	>> NOTE >>	this file is updated for any changes to
+#	>>>>>>>>>>	show through to sendmail.
+#
+
+# Basic system aliases -- these MUST be present.
+MAILER-DAEMON:	postmaster
+postmaster:	root
+
+# General redirections for pseudo accounts.
+bin:		root
+daemon:		root
+games:		root
+ingres:		root
+nobody:		root
+system:		root
+toor:		root
+uucp:		root
+
+# Well-known aliases.
+manager:	root
+dumper:		root
+operator:	root
+
+# trap decode to catch security attacks
+decode:		root
+
+# OFFICIAL CSRG/BUG ADDRESSES
+
+# Ftp maintainer.
+ftp: ftp-bugs
+ftp-bugs: bigbug@cs.berkeley.edu
+
+# Distribution office.
+bsd-dist: bsd-dist@cs.berkeley.edu
+
+# Fortune maintainer.
+fortune: fortune@cs.berkeley.edu
+
+# Termcap maintainer.
+termcap: termcap@cs.berkeley.edu
+
+# General bug address.
+ucb-fixes: bigbug@cs.berkeley.edu
+ucb-fixes-request: bigbug@cs.berkeley.edu
+bugs: bugs@cs.berkeley.edu
+# END OFFICIAL BUG ADDRESSES
diff --git a/src/aliases.0 b/src/aliases.0
new file mode 100644
index 0000000..aa88a57
--- /dev/null
+++ b/src/aliases.0
@@ -0,0 +1,48 @@
+ALIASES(5)                  BSD Programmer's Manual                 ALIASES(5)
+
+NNAAMMEE
+     aalliiaasseess - aliases file for sendmail
+
+SSYYNNOOPPSSIISS
+     aalliiaasseess
+
+DDEESSCCRRIIPPTTIIOONN
+     This file describes user ID aliases used by _/_u_s_r_/_s_b_i_n_/_s_e_n_d_m_a_i_l. The file
+     resides in _/_e_t_c and is formatted as a series of lines of the form
+
+           name: name_1, name2, name_3, . . .
+
+     The _n_a_m_e is the name to alias, and the _n_a_m_e___n are the aliases for that
+     name.  Lines beginning with white space are continuation lines.  Lines
+     beginning with `#' are comments.
+
+     Aliasing occurs only on local names.  Loops can not occur, since no mes-
+     sage will be sent to any person more than once.
+
+     After aliasing has been done, local and valid recipients who have a
+     ``_._f_o_r_w_a_r_d'' file in their home directory have messages forwarded to the
+     list of users defined in that file.
+
+     This is only the raw data file; the actual aliasing information is placed
+     into a binary format in the file _/_e_t_c_/_a_l_i_a_s_e_s_._d_b using the program
+     newaliases(1).  A newaliases command should be executed each time the
+     aliases file is changed for the change to take effect.
+
+SSEEEE AALLSSOO
+     newaliases(1),  dbopen(3),  dbm(3),  sendmail(8)
+
+     _S_E_N_D_M_A_I_L _I_n_s_t_a_l_l_a_t_i_o_n _a_n_d _O_p_e_r_a_t_i_o_n _G_u_i_d_e.
+
+     _S_E_N_D_M_A_I_L _A_n _I_n_t_e_r_n_e_t_w_o_r_k _M_a_i_l _R_o_u_t_e_r.
+
+BBUUGGSS
+     If you have compiled sendmail with DBM support instead of NEWDB, you may
+     have encountered problems in dbm(3) restricting a single alias to about
+     1000 bytes of information.  You can get longer aliases by ``chaining'';
+     that is, make the last name in the alias be a dummy name which is a con-
+     tinuation alias.
+
+HHIISSTTOORRYY
+     The aalliiaasseess file format appeared in 4.0BSD.
+
+4th Berkeley Distribution      December 11, 1993                             1
diff --git a/src/aliases.5 b/src/aliases.5
new file mode 100644
index 0000000..3519467
--- /dev/null
+++ b/src/aliases.5
@@ -0,0 +1,107 @@
+.\" Copyright (c) 1983, 1997 Eric P. Allman
+.\" Copyright (c) 1985, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)aliases.5	8.3 (Berkeley) 2/1/97
+.\"
+.Dd February 1, 1997
+.Dt ALIASES 5
+.Os BSD 4
+.Sh NAME
+.Nm aliases
+.Nd aliases file for sendmail
+.Sh SYNOPSIS
+.Nm aliases
+.Sh DESCRIPTION
+This file describes user
+.Tn ID
+aliases used by
+.Pa /usr/sbin/sendmail .
+The file resides in
+.Pa /etc
+and
+is formatted as a series of lines of the form
+.Bd -filled -offset indent
+name: name_1, name2, name_3, . . .
+.Ed
+.Pp
+The
+.Em name
+is the name to alias, and the
+.Em name_n
+are the aliases for that name.
+Lines beginning with white space are continuation lines.
+Lines beginning with
+.Ql #
+are comments.
+.Pp
+Aliasing occurs only on local names.
+Loops can not occur, since no message will be sent to any person more than once.
+.Pp
+After aliasing has been done, local and valid recipients who have a
+.Dq Pa .forward
+file in their home directory have messages forwarded to the
+list of users defined in that file.
+.Pp
+This is only the raw data file; the actual aliasing information is
+placed into a binary format in the file
+.Pa /etc/aliases.db
+using the program
+.Xr newaliases 1 .
+A
+.Xr newaliases
+command should be executed each time the aliases file is changed for the
+change to take effect.
+.Sh SEE  ALSO
+.Xr newaliases 1 ,
+.Xr dbopen 3 ,
+.Xr dbm 3 ,
+.Xr sendmail 8
+.Rs
+.%T "SENDMAIL Installation and Operation Guide"
+.Re
+.Rs
+.%T "SENDMAIL An Internetwork Mail Router"
+.Re
+.Sh BUGS
+If you have compiled
+.Xr sendmail
+with DBM support instead of NEWDB,
+you may have encountered problems in
+.Xr dbm 3
+restricting a single alias to about 1000 bytes of information.
+You can get longer aliases by ``chaining''; that is, make the last name in
+the alias be a dummy name which is a continuation alias.
+.Sh HISTORY
+The
+.Nm
+file format appeared in
+.Bx 4.0 .
diff --git a/src/arpadate.c b/src/arpadate.c
new file mode 100644
index 0000000..f289020
--- /dev/null
+++ b/src/arpadate.c
@@ -0,0 +1,219 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)arpadate.c	8.7 (Berkeley) 2/1/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+/*
+**  ARPADATE -- Create date in ARPANET format
+**
+**	Parameters:
+**		ud -- unix style date string.  if NULL, one is created.
+**
+**	Returns:
+**		pointer to an ARPANET date field
+**
+**	Side Effects:
+**		none
+**
+**	WARNING:
+**		date is stored in a local buffer -- subsequent
+**		calls will overwrite.
+**
+**	Bugs:
+**		Timezone is computed from local time, rather than
+**		from whereever (and whenever) the message was sent.
+**		To do better is very hard.
+**
+**		Some sites are now inserting the timezone into the
+**		local date.  This routine should figure out what
+**		the format is and work appropriately.
+*/
+
+#ifndef TZNAME_MAX
+# define TZNAME_MAX	50	/* max size of timezone */
+#endif
+
+/* values for TZ_TYPE */
+#define TZ_NONE		0	/* no character timezone support */
+#define TZ_TM_NAME	1	/* use tm->tm_name */
+#define TZ_TM_ZONE	2	/* use tm->tm_zone */
+#define TZ_TZNAME	3	/* use tzname[] */
+#define TZ_TIMEZONE	4	/* use timezone() */
+
+char *
+arpadate(ud)
+	register char *ud;
+{
+	register char *p;
+	register char *q;
+	register int off;
+	register int i;
+	register struct tm *lt;
+	time_t t;
+	struct tm gmt;
+	char *tz;
+	static char b[43 + TZNAME_MAX];
+
+	/*
+	**  Get current time.
+	**	This will be used if a null argument is passed and
+	**	to resolve the timezone.
+	*/
+
+	(void) time(&t);
+	if (ud == NULL)
+		ud = ctime(&t);
+
+	/*
+	**  Crack the UNIX date line in a singularly unoriginal way.
+	*/
+
+	q = b;
+
+	p = &ud[0];		/* Mon */
+	*q++ = *p++;
+	*q++ = *p++;
+	*q++ = *p++;
+	*q++ = ',';
+	*q++ = ' ';
+
+	p = &ud[8];		/* 16 */
+	if (*p == ' ')
+		p++;
+	else
+		*q++ = *p++;
+	*q++ = *p++;
+	*q++ = ' ';
+
+	p = &ud[4];		/* Sep */
+	*q++ = *p++;
+	*q++ = *p++;
+	*q++ = *p++;
+	*q++ = ' ';
+
+	p = &ud[20];		/* 1979 */
+	*q++ = *p++;
+	*q++ = *p++;
+	*q++ = *p++;
+	*q++ = *p++;
+	*q++ = ' ';
+
+	p = &ud[11];		/* 01:03:52 */
+	for (i = 8; i > 0; i--)
+		*q++ = *p++;
+
+	/*
+	 * should really get the timezone from the time in "ud" (which
+	 * is only different if a non-null arg was passed which is different
+	 * from the current time), but for all practical purposes, returning
+	 * the current local zone will do (its all that is ever needed).
+	 */
+	gmt = *gmtime(&t);
+	lt = localtime(&t);
+
+	off = (lt->tm_hour - gmt.tm_hour) * 60 + lt->tm_min - gmt.tm_min;
+
+	/* assume that offset isn't more than a day ... */
+	if (lt->tm_year < gmt.tm_year)
+		off -= 24 * 60;
+	else if (lt->tm_year > gmt.tm_year)
+		off += 24 * 60;
+	else if (lt->tm_yday < gmt.tm_yday)
+		off -= 24 * 60;
+	else if (lt->tm_yday > gmt.tm_yday)
+		off += 24 * 60;
+
+	*q++ = ' ';
+	if (off == 0)
+	{
+		*q++ = 'G';
+		*q++ = 'M';
+		*q++ = 'T';
+	}
+	else
+	{
+		tz = NULL;
+#if TZ_TYPE == TZ_TM_NAME
+		tz = lt->tm_name;
+#endif
+#if TZ_TYPE == TZ_TM_ZONE
+		tz = lt->tm_zone;
+#endif
+#if TZ_TYPE == TZ_TZNAME
+		{
+			extern char *tzname[];
+
+			tz = tzname[lt->tm_isdst];
+		}
+#endif
+#if TZ_TYPE == TZ_TIMEZONE
+		{
+			extern char *timezone();
+
+			tz = timezone(off, lt->tm_isdst);
+		}
+#endif
+		if (off < 0)
+		{
+			off = -off;
+			*q++ = '-';
+		}
+		else
+			*q++ = '+';
+
+		if (off >= 24*60)		/* should be impossible */
+			off = 23*60+59;		/* if not, insert silly value */
+
+		*q++ = (off / 600) + '0';
+		*q++ = (off / 60) % 10 + '0';
+		off %= 60;
+		*q++ = (off / 10) + '0';
+		*q++ = (off % 10) + '0';
+		if (tz != NULL && *tz != '\0')
+		{
+			*q++ = ' ';
+			*q++ = '(';
+			while (*tz != '\0' && q < &b[sizeof b - 3])
+				*q++ = *tz++;
+			*q++ = ')';
+		}
+	}
+	*q = '\0';
+
+	return (b);
+}
diff --git a/src/cdefs.h b/src/cdefs.h
new file mode 100644
index 0000000..e586cbf
--- /dev/null
+++ b/src/cdefs.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Berkeley Software Design, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+ */
+
+#ifndef	_CDEFS_H_
+#define	_CDEFS_H_
+
+#if defined(__cplusplus)
+#define	__BEGIN_DECLS	extern "C" {
+#define	__END_DECLS	};
+#else
+#define	__BEGIN_DECLS
+#define	__END_DECLS
+#endif
+
+/*
+ * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+ * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+ * The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+ * in between its arguments.  __CONCAT can also concatenate double-quoted
+ * strings produced by the __STRING macro, but this only works with ANSI C.
+ */
+#if defined(__STDC__) || defined(__cplusplus)
+#define	__P(protos)	protos		/* full-blown ANSI C */
+#define	__CONCAT(x,y)	x ## y
+#define	__STRING(x)	#x
+
+#define	__const		const		/* define reserved names to standard */
+#define	__signed	signed
+#define	__volatile	volatile
+#if defined(__cplusplus)
+#define	__inline	inline		/* convert to C++ keyword */
+#else
+#ifndef __GNUC__
+#define	__inline			/* delete GCC keyword */
+#endif /* !__GNUC__ */
+#endif /* !__cplusplus */
+
+#else	/* !(__STDC__ || __cplusplus) */
+#define	__P(protos)	()		/* traditional C preprocessor */
+#define	__CONCAT(x,y)	x/**/y
+#define	__STRING(x)	"x"
+
+#ifndef __GNUC__
+#define	__const				/* delete pseudo-ANSI C keywords */
+#define	__inline
+#define	__signed
+#define	__volatile
+/*
+ * In non-ANSI C environments, new programs will want ANSI-only C keywords
+ * deleted from the program and old programs will want them left alone.
+ * When using a compiler other than gcc, programs using the ANSI C keywords
+ * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
+ * When using "gcc -traditional", we assume that this is the intent; if
+ * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
+ */
+#ifndef	NO_ANSI_KEYWORDS
+#define	const				/* delete ANSI C keywords */
+#define	inline
+#define	signed
+#define	volatile
+#endif
+#endif	/* !__GNUC__ */
+#endif	/* !(__STDC__ || __cplusplus) */
+
+/*
+ * GCC1 and some versions of GCC2 declare dead (non-returning) and
+ * pure (no side effects) functions using "volatile" and "const";
+ * unfortunately, these then cause warnings under "-ansi -pedantic".
+ * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of
+ * these work for GNU C++ (modulo a slight glitch in the C++ grammar
+ * in the distribution version of 2.5.5).
+ */
+#if !defined(__GNUC__) || __GNUC__ < 2 || \
+	(__GNUC__ == 2 && __GNUC_MINOR__ < 5)
+#define	__attribute__(x)	/* delete __attribute__ if non-gcc or gcc1 */
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+#define	__dead		__volatile
+#define	__pure		__const
+#endif
+#endif
+
+/* Delete pseudo-keywords wherever they are not available or needed. */
+#ifndef __dead
+#define	__dead
+#define	__pure
+#endif
+
+#endif /* !_CDEFS_H_ */
diff --git a/src/clock.c b/src/clock.c
new file mode 100644
index 0000000..6940b29
--- /dev/null
+++ b/src/clock.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)clock.c	8.24 (Berkeley) 4/19/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+# ifndef sigmask
+#  define sigmask(s)	(1 << ((s) - 1))
+# endif
+
+/*
+**  SETEVENT -- set an event to happen at a specific time.
+**
+**	Events are stored in a sorted list for fast processing.
+**	An event only applies to the process that set it.
+**
+**	Parameters:
+**		intvl -- intvl until next event occurs.
+**		func -- function to call on event.
+**		arg -- argument to func on event.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+EVENT	*FreeEventList;		/* list of free events */
+
+static SIGFUNC_DECL	tick __P((int));
+
+EVENT *
+setevent(intvl, func, arg)
+	time_t intvl;
+	void (*func)();
+	int arg;
+{
+	register EVENT **evp;
+	register EVENT *ev;
+	auto time_t now;
+	int wasblocked;
+
+	if (intvl <= 0)
+	{
+		syserr("554 setevent: intvl=%ld\n", intvl);
+		return (NULL);
+	}
+
+	wasblocked = blocksignal(SIGALRM);
+	(void) time(&now);
+
+	/* search event queue for correct position */
+	for (evp = &EventQueue; (ev = *evp) != NULL; evp = &ev->ev_link)
+	{
+		if (ev->ev_time >= now + intvl)
+			break;
+	}
+
+	/* insert new event */
+	ev = FreeEventList;
+	if (ev == NULL)
+		ev = (EVENT *) xalloc(sizeof *ev);
+	else
+		FreeEventList = ev->ev_link;
+	ev->ev_time = now + intvl;
+	ev->ev_func = func;
+	ev->ev_arg = arg;
+	ev->ev_pid = getpid();
+	ev->ev_link = *evp;
+	*evp = ev;
+
+	if (tTd(5, 5))
+		printf("setevent: intvl=%ld, for=%ld, func=%lx, arg=%d, ev=%lx\n",
+			intvl, now + intvl, (u_long) func, arg, (u_long) ev);
+
+	setsignal(SIGALRM, tick);
+	intvl = EventQueue->ev_time - now;
+	(void) alarm((unsigned) intvl < 1 ? 1 : intvl);
+	if (wasblocked == 0)
+		(void) releasesignal(SIGALRM);
+	return (ev);
+}
+/*
+**  CLREVENT -- remove an event from the event queue.
+**
+**	Parameters:
+**		ev -- pointer to event to remove.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		arranges for event ev to not happen.
+*/
+
+void
+clrevent(ev)
+	register EVENT *ev;
+{
+	register EVENT **evp;
+	int wasblocked;
+
+	if (tTd(5, 5))
+		printf("clrevent: ev=%lx\n", (u_long) ev);
+	if (ev == NULL)
+		return;
+
+	/* find the parent event */
+	wasblocked = blocksignal(SIGALRM);
+	for (evp = &EventQueue; *evp != NULL; evp = &(*evp)->ev_link)
+	{
+		if (*evp == ev)
+			break;
+	}
+
+	/* now remove it */
+	if (*evp != NULL)
+	{
+		*evp = ev->ev_link;
+		ev->ev_link = FreeEventList;
+		FreeEventList = ev;
+	}
+
+	/* restore clocks and pick up anything spare */
+	if (wasblocked == 0)
+		releasesignal(SIGALRM);
+	if (EventQueue != NULL)
+		kill(getpid(), SIGALRM);
+}
+/*
+**  TICK -- take a clock tick
+**
+**	Called by the alarm clock.  This routine runs events as needed.
+**	Always called as a signal handler, so we assume that SIGALRM
+**	has been blocked.
+**
+**	Parameters:
+**		One that is ignored; for compatibility with signal handlers.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		calls the next function in EventQueue.
+*/
+
+static SIGFUNC_DECL
+tick(arg)
+	int arg;
+{
+	register time_t now;
+	register EVENT *ev;
+	int mypid = getpid();
+	int olderrno = errno;
+
+	(void) alarm(0);
+	now = curtime();
+
+	if (tTd(5, 4))
+		printf("tick: now=%ld\n", now);
+
+	/* reset signal in case System V semantics */
+	(void) setsignal(SIGALRM, tick);
+	while ((ev = EventQueue) != NULL &&
+	       (ev->ev_time <= now || ev->ev_pid != mypid))
+	{
+		void (*f)();
+		int arg;
+		int pid;
+
+		/* process the event on the top of the queue */
+		ev = EventQueue;
+		EventQueue = EventQueue->ev_link;
+		if (tTd(5, 6))
+			printf("tick: ev=%lx, func=%lx, arg=%d, pid=%d\n",
+				(u_long) ev, (u_long) ev->ev_func,
+				ev->ev_arg, ev->ev_pid);
+
+		/* we must be careful in here because ev_func may not return */
+		f = ev->ev_func;
+		arg = ev->ev_arg;
+		pid = ev->ev_pid;
+		ev->ev_link = FreeEventList;
+		FreeEventList = ev;
+		if (pid != getpid())
+			continue;
+		if (EventQueue != NULL)
+		{
+			if (EventQueue->ev_time > now)
+				(void) alarm((unsigned) (EventQueue->ev_time - now));
+			else
+				(void) alarm(3);
+		}
+
+		/* call ev_func */
+		errno = olderrno;
+		(*f)(arg);
+		(void) alarm(0);
+		now = curtime();
+	}
+	if (EventQueue != NULL)
+		(void) alarm((unsigned) (EventQueue->ev_time - now));
+	errno = olderrno;
+	return SIGFUNC_RETURN;
+}
+/*
+**  SLEEP -- a version of sleep that works with this stuff
+**
+**	Because sleep uses the alarm facility, I must reimplement
+**	it here.
+**
+**	Parameters:
+**		intvl -- time to sleep.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		waits for intvl time.  However, other events can
+**		be run during that interval.
+*/
+
+static bool	SleepDone;
+static void	endsleep();
+
+#ifndef SLEEP_T
+# define SLEEP_T	unsigned int
+#endif
+
+SLEEP_T
+sleep(intvl)
+	unsigned int intvl;
+{
+	int was_held;
+
+	if (intvl == 0)
+		return (SLEEP_T) 0;
+	SleepDone = FALSE;
+	(void) setevent((time_t) intvl, endsleep, 0);
+	was_held = releasesignal(SIGALRM);
+	while (!SleepDone)
+		pause();
+	if (was_held > 0)
+		blocksignal(SIGALRM);
+	return (SLEEP_T) 0;
+}
+
+static void
+endsleep()
+{
+	SleepDone = TRUE;
+}
diff --git a/src/collect.c b/src/collect.c
new file mode 100644
index 0000000..58f0dc7
--- /dev/null
+++ b/src/collect.c
@@ -0,0 +1,761 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)collect.c	8.72 (Berkeley) 10/6/97";
+#endif /* not lint */
+
+# include <errno.h>
+# include "sendmail.h"
+
+/*
+**  COLLECT -- read & parse message header & make temp file.
+**
+**	Creates a temporary file name and copies the standard
+**	input to that file.  Leading UNIX-style "From" lines are
+**	stripped off (after important information is extracted).
+**
+**	Parameters:
+**		fp -- file to read.
+**		smtpmode -- if set, we are running SMTP: give an RFC821
+**			style message to say we are ready to collect
+**			input, and never ignore a single dot to mean
+**			end of message.
+**		hdrp -- the location to stash the header.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Temp file is created and filled.
+**		The from person may be set.
+*/
+
+static jmp_buf	CtxCollectTimeout;
+static void	collecttimeout();
+static bool	CollectProgress;
+static EVENT	*CollectTimeout;
+
+/* values for input state machine */
+#define IS_NORM		0	/* middle of line */
+#define IS_BOL		1	/* beginning of line */
+#define IS_DOT		2	/* read a dot at beginning of line */
+#define IS_DOTCR	3	/* read ".\r" at beginning of line */
+#define IS_CR		4	/* read a carriage return */
+
+/* values for message state machine */
+#define MS_UFROM	0	/* reading Unix from line */
+#define MS_HEADER	1	/* reading message header */
+#define MS_BODY		2	/* reading message body */
+
+void
+collect(fp, smtpmode, hdrp, e)
+	FILE *fp;
+	bool smtpmode;
+	HDR **hdrp;
+	register ENVELOPE *e;
+{
+	register FILE *volatile tf;
+	volatile bool ignrdot = smtpmode ? FALSE : IgnrDot;
+	volatile time_t dbto = smtpmode ? TimeOuts.to_datablock : 0;
+	register char *volatile bp;
+	volatile int c = EOF;
+	volatile bool inputerr = FALSE;
+	bool headeronly;
+	char *volatile buf;
+	volatile int buflen;
+	volatile int istate;
+	volatile int mstate;
+	u_char *volatile pbp;
+	u_char peekbuf[8];
+	char dfname[MAXQFNAME];
+	char bufbuf[MAXLINE];
+	extern bool isheader();
+	extern void eatheader();
+	extern void tferror();
+
+	headeronly = hdrp != NULL;
+
+	/*
+	**  Create the temp file name and create the file.
+	*/
+
+	if (!headeronly)
+	{
+		int tfd;
+		struct stat stbuf;
+
+		strcpy(dfname, queuename(e, 'd'));
+		tfd = dfopen(dfname, O_WRONLY|O_CREAT|O_TRUNC, FileMode, SFF_ANYFILE);
+		if (tfd < 0 || (tf = fdopen(tfd, "w")) == NULL)
+		{
+			syserr("Cannot create %s", dfname);
+			e->e_flags |= EF_NO_BODY_RETN;
+			finis();
+		}
+		if (fstat(fileno(tf), &stbuf) < 0)
+			e->e_dfino = -1;
+		else
+		{
+			e->e_dfdev = stbuf.st_dev;
+			e->e_dfino = stbuf.st_ino;
+		}
+		HasEightBits = FALSE;
+		e->e_msgsize = 0;
+		e->e_flags |= EF_HAS_DF;
+	}
+
+	/*
+	**  Tell ARPANET to go ahead.
+	*/
+
+	if (smtpmode)
+		message("354 Enter mail, end with \".\" on a line by itself");
+
+	if (tTd(30, 2))
+		printf("collect\n");
+
+	/*
+	**  Read the message.
+	**
+	**	This is done using two interleaved state machines.
+	**	The input state machine is looking for things like
+	**	hidden dots; the message state machine is handling
+	**	the larger picture (e.g., header versus body).
+	*/
+
+	buf = bp = bufbuf;
+	buflen = sizeof bufbuf;
+	pbp = peekbuf;
+	istate = IS_BOL;
+	mstate = SaveFrom ? MS_HEADER : MS_UFROM;
+	CollectProgress = FALSE;
+
+	if (dbto != 0)
+	{
+		/* handle possible input timeout */
+		if (setjmp(CtxCollectTimeout) != 0)
+		{
+			if (LogLevel > 2)
+				sm_syslog(LOG_NOTICE, e->e_id,
+				    "timeout waiting for input from %s during message collect",
+				    CurHostName ? CurHostName : "<local machine>");
+			errno = 0;
+			usrerr("451 timeout waiting for input during message collect");
+			goto readerr;
+		}
+		CollectTimeout = setevent(dbto, collecttimeout, dbto);
+	}
+
+	for (;;)
+	{
+		if (tTd(30, 35))
+			printf("top, istate=%d, mstate=%d\n", istate, mstate);
+		for (;;)
+		{
+			if (pbp > peekbuf)
+				c = *--pbp;
+			else
+			{
+				while (!feof(fp) && !ferror(fp))
+				{
+					errno = 0;
+					c = getc(fp);
+					if (errno != EINTR)
+						break;
+					clearerr(fp);
+				}
+				CollectProgress = TRUE;
+				if (TrafficLogFile != NULL && !headeronly)
+				{
+					if (istate == IS_BOL)
+						fprintf(TrafficLogFile, "%05d <<< ",
+							(int) getpid());
+					if (c == EOF)
+						fprintf(TrafficLogFile, "[EOF]\n");
+					else
+						putc(c, TrafficLogFile);
+				}
+				if (c == EOF)
+					goto readerr;
+				if (SevenBitInput)
+					c &= 0x7f;
+				else
+					HasEightBits |= bitset(0x80, c);
+			}
+			if (tTd(30, 94))
+				printf("istate=%d, c=%c (0x%x)\n",
+					istate, c, c);
+			switch (istate)
+			{
+			  case IS_BOL:
+				if (c == '.')
+				{
+					istate = IS_DOT;
+					continue;
+				}
+				break;
+
+			  case IS_DOT:
+				if (c == '\n' && !ignrdot &&
+				    !bitset(EF_NL_NOT_EOL, e->e_flags))
+					goto readerr;
+				else if (c == '\r' &&
+					 !bitset(EF_CRLF_NOT_EOL, e->e_flags))
+				{
+					istate = IS_DOTCR;
+					continue;
+				}
+				else if (c != '.' ||
+					 (OpMode != MD_SMTP &&
+					  OpMode != MD_DAEMON &&
+					  OpMode != MD_ARPAFTP))
+				{
+					*pbp++ = c;
+					c = '.';
+				}
+				break;
+
+			  case IS_DOTCR:
+				if (c == '\n' && !ignrdot)
+					goto readerr;
+				else
+				{
+					/* push back the ".\rx" */
+					*pbp++ = c;
+					*pbp++ = '\r';
+					c = '.';
+				}
+				break;
+
+			  case IS_CR:
+				if (c == '\n')
+					istate = IS_BOL;
+				else
+				{
+					ungetc(c, fp);
+					c = '\r';
+					istate = IS_NORM;
+				}
+				goto bufferchar;
+			}
+
+			if (c == '\r' && !bitset(EF_CRLF_NOT_EOL, e->e_flags))
+			{
+				istate = IS_CR;
+				continue;
+			}
+			else if (c == '\n' && !bitset(EF_NL_NOT_EOL, e->e_flags))
+				istate = IS_BOL;
+			else
+				istate = IS_NORM;
+
+bufferchar:
+			if (!headeronly)
+				e->e_msgsize++;
+			if (mstate == MS_BODY)
+			{
+				/* just put the character out */
+				if (MaxMessageSize <= 0 ||
+				    e->e_msgsize <= MaxMessageSize)
+					putc(c, tf);
+				continue;
+			}
+
+			/* header -- buffer up */
+			if (bp >= &buf[buflen - 2])
+			{
+				char *obuf;
+
+				if (mstate != MS_HEADER)
+					break;
+
+				/* out of space for header */
+				obuf = buf;
+				if (buflen < MEMCHUNKSIZE)
+					buflen *= 2;
+				else
+					buflen += MEMCHUNKSIZE;
+				buf = xalloc(buflen);
+				bcopy(obuf, buf, bp - obuf);
+				bp = &buf[bp - obuf];
+				if (obuf != bufbuf)
+					free(obuf);
+			}
+			if (c >= 0200 && c <= 0237)
+			{
+#if 0	/* causes complaints -- figure out something for 8.9 */
+				usrerr("Illegal character 0x%x in header", c);
+#endif
+			}
+			else if (c != '\0')
+				*bp++ = c;
+			if (istate == IS_BOL)
+				break;
+		}
+		*bp = '\0';
+
+nextstate:
+		if (tTd(30, 35))
+			printf("nextstate, istate=%d, mstate=%d, line = \"%s\"\n",
+				istate, mstate, buf);
+		switch (mstate)
+		{
+			extern int chompheader();
+
+		  case MS_UFROM:
+			mstate = MS_HEADER;
+#ifndef NOTUNIX
+			if (strncmp(buf, "From ", 5) == 0)
+			{
+				extern void eatfrom();
+
+				bp = buf;
+				eatfrom(buf, e);
+				continue;
+			}
+#endif
+			/* fall through */
+
+		  case MS_HEADER:
+			if (!isheader(buf))
+			{
+				mstate = MS_BODY;
+				goto nextstate;
+			}
+
+			/* check for possible continuation line */
+			do
+			{
+				clearerr(fp);
+				errno = 0;
+				c = getc(fp);
+			} while (errno == EINTR);
+			if (c != EOF)
+				ungetc(c, fp);
+			if (c == ' ' || c == '\t')
+			{
+				/* yep -- defer this */
+				continue;
+			}
+
+			/* trim off trailing CRLF or NL */
+			if (*--bp != '\n' || *--bp != '\r')
+				bp++;
+			*bp = '\0';
+			if (bitset(H_EOH, chompheader(buf, FALSE, hdrp, e)))
+				mstate = MS_BODY;
+			break;
+
+		  case MS_BODY:
+			if (tTd(30, 1))
+				printf("EOH\n");
+			if (headeronly)
+				goto readerr;
+			bp = buf;
+
+			/* toss blank line */
+			if ((!bitset(EF_CRLF_NOT_EOL, e->e_flags) &&
+				bp[0] == '\r' && bp[1] == '\n') ||
+			    (!bitset(EF_NL_NOT_EOL, e->e_flags) &&
+				bp[0] == '\n'))
+			{
+				break;
+			}
+
+			/* if not a blank separator, write it out */
+			if (MaxMessageSize <= 0 ||
+			    e->e_msgsize <= MaxMessageSize)
+			{
+				while (*bp != '\0')
+					putc(*bp++, tf);
+			}
+			break;
+		}
+		bp = buf;
+	}
+
+readerr:
+	if ((feof(fp) && smtpmode) || ferror(fp))
+	{
+		const char *errmsg = errstring(errno);
+
+		if (tTd(30, 1))
+			printf("collect: premature EOM: %s\n", errmsg);
+		if (LogLevel >= 2)
+			sm_syslog(LOG_WARNING, e->e_id,
+				"collect: premature EOM: %s", errmsg);
+		inputerr = TRUE;
+	}
+
+	/* reset global timer */
+	clrevent(CollectTimeout);
+
+	if (headeronly)
+		return;
+
+	if (tf != NULL &&
+	    (fflush(tf) != 0 || ferror(tf) ||
+	     (SuperSafe && fsync(fileno(tf)) < 0) ||
+	     fclose(tf) < 0))
+	{
+		tferror(tf, e);
+		flush_errors(TRUE);
+		finis();
+	}
+
+	/* An EOF when running SMTP is an error */
+	if (inputerr && (OpMode == MD_SMTP || OpMode == MD_DAEMON))
+	{
+		char *host;
+		char *problem;
+
+		host = RealHostName;
+		if (host == NULL)
+			host = "localhost";
+
+		if (feof(fp))
+			problem = "unexpected close";
+		else if (ferror(fp))
+			problem = "I/O error";
+		else
+			problem = "read timeout";
+		if (LogLevel > 0 && feof(fp))
+			sm_syslog(LOG_NOTICE, e->e_id,
+			    "collect: %s on connection from %.100s, sender=%s: %s",
+			    problem, host,
+			    shortenstring(e->e_from.q_paddr, 203),
+			    errstring(errno));
+		if (feof(fp))
+			usrerr("451 collect: %s on connection from %s, from=%s",
+				problem, host,
+				shortenstring(e->e_from.q_paddr, 203));
+		else
+			syserr("451 collect: %s on connection from %s, from=%s",
+				problem, host,
+				shortenstring(e->e_from.q_paddr, 203));
+
+		/* don't return an error indication */
+		e->e_to = NULL;
+		e->e_flags &= ~EF_FATALERRS;
+		e->e_flags |= EF_CLRQUEUE;
+
+		/* and don't try to deliver the partial message either */
+		if (InChild)
+			ExitStat = EX_QUIT;
+		finis();
+	}
+
+	/*
+	**  Find out some information from the headers.
+	**	Examples are who is the from person & the date.
+	*/
+
+	eatheader(e, TRUE);
+
+	if (GrabTo && e->e_sendqueue == NULL)
+		usrerr("No recipient addresses found in header");
+
+	/* collect statistics */
+	if (OpMode != MD_VERIFY)
+	{
+		extern void markstats();
+
+		markstats(e, (ADDRESS *) NULL);
+	}
+
+#if _FFR_DSN_RRT_OPTION
+	/*
+	**  If we have a Return-Receipt-To:, turn it into a DSN.
+	*/
+
+	if (RrtImpliesDsn && hvalue("return-receipt-to", e->e_header) != NULL)
+	{
+		ADDRESS *q;
+
+		for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+			if (!bitset(QHASNOTIFY, q->q_flags))
+				q->q_flags |= QHASNOTIFY|QPINGONSUCCESS;
+	}
+#endif
+
+	/*
+	**  Add an Apparently-To: line if we have no recipient lines.
+	*/
+
+	if (hvalue("to", e->e_header) != NULL ||
+	    hvalue("cc", e->e_header) != NULL ||
+	    hvalue("apparently-to", e->e_header) != NULL)
+	{
+		/* have a valid recipient header -- delete Bcc: headers */
+		e->e_flags |= EF_DELETE_BCC;
+	}
+	else if (hvalue("bcc", e->e_header) == NULL)
+	{
+		/* no valid recipient headers */
+		register ADDRESS *q;
+		char *hdr = NULL;
+		extern void addheader();
+
+		/* create an Apparently-To: field */
+		/*    that or reject the message.... */
+		switch (NoRecipientAction)
+		{
+		  case NRA_ADD_APPARENTLY_TO:
+			hdr = "Apparently-To";
+			break;
+
+		  case NRA_ADD_TO:
+			hdr = "To";
+			break;
+
+		  case NRA_ADD_BCC:
+			addheader("Bcc", " ", &e->e_header);
+			break;
+
+		  case NRA_ADD_TO_UNDISCLOSED:
+			addheader("To", "undisclosed-recipients:;", &e->e_header);
+			break;
+		}
+
+		if (hdr != NULL)
+		{
+			for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+			{
+				if (q->q_alias != NULL)
+					continue;
+				if (tTd(30, 3))
+					printf("Adding %s: %s\n",
+						hdr, q->q_paddr);
+				addheader(hdr, q->q_paddr, &e->e_header);
+			}
+		}
+	}
+
+	/* check for message too large */
+	if (MaxMessageSize > 0 && e->e_msgsize > MaxMessageSize)
+	{
+		e->e_flags |= EF_NO_BODY_RETN|EF_CLRQUEUE;
+		e->e_status = "5.2.3";
+		usrerr("552 Message exceeds maximum fixed size (%ld)",
+			MaxMessageSize);
+		if (LogLevel > 6)
+			sm_syslog(LOG_NOTICE, e->e_id,
+				"message size (%ld) exceeds maximum (%ld)",
+				e->e_msgsize, MaxMessageSize);
+	}
+
+	/* check for illegal 8-bit data */
+	if (HasEightBits)
+	{
+		e->e_flags |= EF_HAS8BIT;
+		if (!bitset(MM_PASS8BIT|MM_MIME8BIT, MimeMode) &&
+		    !bitset(EF_IS_MIME, e->e_flags))
+		{
+			e->e_status = "5.6.1";
+			usrerr("554 Eight bit data not allowed");
+		}
+	}
+	else
+	{
+		/* if it claimed to be 8 bits, well, it lied.... */
+		if (e->e_bodytype != NULL &&
+		    strcasecmp(e->e_bodytype, "8BITMIME") == 0)
+			e->e_bodytype = "7BIT";
+	}
+
+	if ((e->e_dfp = fopen(dfname, "r")) == NULL)
+	{
+		/* we haven't acked receipt yet, so just chuck this */
+		syserr("Cannot reopen %s", dfname);
+		finis();
+	}
+}
+
+
+static void
+collecttimeout(timeout)
+	time_t timeout;
+{
+	/* if no progress was made, die now */
+	if (!CollectProgress)
+		longjmp(CtxCollectTimeout, 1);
+
+	/* otherwise reset the timeout */
+	CollectTimeout = setevent(timeout, collecttimeout, timeout);
+	CollectProgress = FALSE;
+}
+/*
+**  TFERROR -- signal error on writing the temporary file.
+**
+**	Parameters:
+**		tf -- the file pointer for the temporary file.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Gives an error message.
+**		Arranges for following output to go elsewhere.
+*/
+
+void
+tferror(tf, e)
+	FILE *tf;
+	register ENVELOPE *e;
+{
+	setstat(EX_IOERR);
+	if (errno == ENOSPC)
+	{
+		struct stat st;
+		long avail;
+		long bsize;
+		extern long freediskspace __P((char *, long *));
+
+		e->e_flags |= EF_NO_BODY_RETN;
+		if (fstat(fileno(tf), &st) < 0)
+			st.st_size = 0;
+		(void) freopen(queuename(e, 'd'), "w", tf);
+		if (st.st_size <= 0)
+			fprintf(tf, "\n*** Mail could not be accepted");
+		else if (sizeof st.st_size > sizeof (long))
+			fprintf(tf, "\n*** Mail of at least %qd bytes could not be accepted\n",
+				st.st_size);
+		else
+			fprintf(tf, "\n*** Mail of at least %ld bytes could not be accepted\n",
+				(long) st.st_size);
+		fprintf(tf, "*** at %s due to lack of disk space for temp file.\n",
+			MyHostName);
+		avail = freediskspace(QueueDir, &bsize);
+		if (avail > 0)
+		{
+			if (bsize > 1024)
+				avail *= bsize / 1024;
+			else if (bsize < 1024)
+				avail /= 1024 / bsize;
+			fprintf(tf, "*** Currently, %ld kilobytes are available for mail temp files.\n",
+				avail);
+		}
+		e->e_status = "4.3.1";
+		usrerr("452 Out of disk space for temp file");
+	}
+	else
+		syserr("collect: Cannot write tf%s", e->e_id);
+	(void) freopen("/dev/null", "w", tf);
+}
+/*
+**  EATFROM -- chew up a UNIX style from line and process
+**
+**	This does indeed make some assumptions about the format
+**	of UNIX messages.
+**
+**	Parameters:
+**		fm -- the from line.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		extracts what information it can from the header,
+**		such as the date.
+*/
+
+# ifndef NOTUNIX
+
+char	*DowList[] =
+{
+	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", NULL
+};
+
+char	*MonthList[] =
+{
+	"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+	"Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
+	NULL
+};
+
+void
+eatfrom(fm, e)
+	char *fm;
+	register ENVELOPE *e;
+{
+	register char *p;
+	register char **dt;
+
+	if (tTd(30, 2))
+		printf("eatfrom(%s)\n", fm);
+
+	/* find the date part */
+	p = fm;
+	while (*p != '\0')
+	{
+		/* skip a word */
+		while (*p != '\0' && *p != ' ')
+			p++;
+		while (*p == ' ')
+			p++;
+		if (!(isascii(*p) && isupper(*p)) ||
+		    p[3] != ' ' || p[13] != ':' || p[16] != ':')
+			continue;
+
+		/* we have a possible date */
+		for (dt = DowList; *dt != NULL; dt++)
+			if (strncmp(*dt, p, 3) == 0)
+				break;
+		if (*dt == NULL)
+			continue;
+
+		for (dt = MonthList; *dt != NULL; dt++)
+			if (strncmp(*dt, &p[4], 3) == 0)
+				break;
+		if (*dt != NULL)
+			break;
+	}
+
+	if (*p != '\0')
+	{
+		char *q;
+
+		/* we have found a date */
+		q = xalloc(25);
+		(void) strncpy(q, p, 25);
+		q[24] = '\0';
+		q = arpadate(q);
+		define('a', newstr(q), e);
+	}
+}
+
+# endif /* NOTUNIX */
diff --git a/src/conf.c b/src/conf.c
new file mode 100644
index 0000000..cd51efc
--- /dev/null
+++ b/src/conf.c
@@ -0,0 +1,5079 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)conf.c	8.379 (Berkeley) 10/20/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+# include "pathnames.h"
+# include <sys/ioctl.h>
+# include <sys/param.h>
+
+/*
+**  CONF.C -- Sendmail Configuration Tables.
+**
+**	Defines the configuration of this installation.
+**
+**	Configuration Variables:
+**		HdrInfo -- a table describing well-known header fields.
+**			Each entry has the field name and some flags,
+**			which are described in sendmail.h.
+**
+**	Notes:
+**		I have tried to put almost all the reasonable
+**		configuration information into the configuration
+**		file read at runtime.  My intent is that anything
+**		here is a function of the version of UNIX you
+**		are running, or is really static -- for example
+**		the headers are a superset of widely used
+**		protocols.  If you find yourself playing with
+**		this file too much, you may be making a mistake!
+*/
+
+
+
+
+/*
+**  Header info table
+**	Final (null) entry contains the flags used for any other field.
+**
+**	Not all of these are actually handled specially by sendmail
+**	at this time.  They are included as placeholders, to let
+**	you know that "someday" I intend to have sendmail do
+**	something with them.
+*/
+
+struct hdrinfo	HdrInfo[] =
+{
+		/* originator fields, most to least significant  */
+	{ "resent-sender",		H_FROM|H_RESENT			},
+	{ "resent-from",		H_FROM|H_RESENT			},
+	{ "resent-reply-to",		H_FROM|H_RESENT			},
+	{ "sender",			H_FROM				},
+	{ "from",			H_FROM				},
+	{ "reply-to",			H_FROM				},
+	{ "errors-to",			H_FROM|H_ERRORSTO		},
+	{ "full-name",			H_ACHECK			},
+	{ "return-receipt-to",		H_RECEIPTTO			},
+
+		/* destination fields */
+	{ "to",				H_RCPT				},
+	{ "resent-to",			H_RCPT|H_RESENT			},
+	{ "cc",				H_RCPT				},
+	{ "resent-cc",			H_RCPT|H_RESENT			},
+	{ "bcc",			H_RCPT|H_BCC			},
+	{ "resent-bcc",			H_RCPT|H_BCC|H_RESENT		},
+	{ "apparently-to",		H_RCPT				},
+
+		/* message identification and control */
+	{ "message-id",			0				},
+	{ "resent-message-id",		H_RESENT			},
+	{ "message",			H_EOH				},
+	{ "text",			H_EOH				},
+
+		/* date fields */
+	{ "date",			0				},
+	{ "resent-date",		H_RESENT			},
+
+		/* trace fields */
+	{ "received",			H_TRACE|H_FORCE			},
+	{ "x400-received",		H_TRACE|H_FORCE			},
+	{ "via",			H_TRACE|H_FORCE			},
+	{ "mail-from",			H_TRACE|H_FORCE			},
+
+		/* miscellaneous fields */
+	{ "comments",			H_FORCE|H_ENCODABLE		},
+	{ "return-path",		H_FORCE|H_ACHECK		},
+	{ "content-transfer-encoding",	H_CTE				},
+	{ "content-type",		H_CTYPE				},
+	{ "content-length",		H_ACHECK			},
+	{ "subject",			H_ENCODABLE			},
+
+	{ NULL,				0				}
+};
+
+
+
+/*
+**  Privacy values
+*/
+
+struct prival PrivacyValues[] =
+{
+	{ "public",		PRIV_PUBLIC		},
+	{ "needmailhelo",	PRIV_NEEDMAILHELO	},
+	{ "needexpnhelo",	PRIV_NEEDEXPNHELO	},
+	{ "needvrfyhelo",	PRIV_NEEDVRFYHELO	},
+	{ "noexpn",		PRIV_NOEXPN		},
+	{ "novrfy",		PRIV_NOVRFY		},
+	{ "restrictmailq",	PRIV_RESTRICTMAILQ	},
+	{ "restrictqrun",	PRIV_RESTRICTQRUN	},
+#if _FFR_PRIVACY_NOETRN
+	{ "noetrn",		PRIV_NOETRN		},
+#endif
+	{ "authwarnings",	PRIV_AUTHWARNINGS	},
+	{ "noreceipts",		PRIV_NORECEIPTS		},
+	{ "goaway",		PRIV_GOAWAY		},
+	{ NULL,			0			}
+};
+
+
+
+/*
+**  Miscellaneous stuff.
+*/
+
+int	DtableSize =	50;		/* max open files; reset in 4.2bsd */
+/*
+**  SETDEFAULTS -- set default values
+**
+**	Because of the way freezing is done, these must be initialized
+**	using direct code.
+**
+**	Parameters:
+**		e -- the default envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Initializes a bunch of global variables to their
+**		default values.
+*/
+
+#define MINUTES		* 60
+#define HOURS		* 60 MINUTES
+#define DAYS		* 24 HOURS
+
+#ifndef _PATH_VARTMP
+# define _PATH_VARTMP	"/usr/tmp/"
+#endif
+
+#ifndef MAXRULERECURSION
+# define MAXRULERECURSION	50	/* max ruleset recursion depth */
+#endif
+
+void
+setdefaults(e)
+	register ENVELOPE *e;
+{
+	int i;
+	char buf[MAXNAME];
+	extern void inittimeouts();
+	extern void setdefuser();
+	extern void setupmaps();
+	extern void setupmailers();
+	extern void setupheaders();
+
+	SpaceSub = ' ';				/* option B */
+	QueueLA = 8;				/* option x */
+	RefuseLA = 12;				/* option X */
+	WkRecipFact = 30000L;			/* option y */
+	WkClassFact = 1800L;			/* option z */
+	WkTimeFact = 90000L;			/* option Z */
+	QueueFactor = WkRecipFact * 20;		/* option q */
+	FileMode = (RealUid != geteuid()) ? 0644 : 0600;
+						/* option F */
+	DefUid = 1;				/* option u */
+	DefGid = 1;				/* option g */
+	CheckpointInterval = 10;		/* option C */
+	MaxHopCount = 25;			/* option h */
+	e->e_sendmode = SM_FORK;		/* option d */
+	e->e_errormode = EM_PRINT;		/* option e */
+	SevenBitInput = FALSE;			/* option 7 */
+	MaxMciCache = 1;			/* option k */
+	MciCacheTimeout = 5 MINUTES;		/* option K */
+	LogLevel = 9;				/* option L */
+	inittimeouts(NULL);			/* option r */
+	PrivacyFlags = 0;			/* option p */
+#if MIME8TO7
+	MimeMode = MM_CVTMIME|MM_PASS8BIT;	/* option 8 */
+#else
+	MimeMode = MM_PASS8BIT;
+#endif
+	for (i = 0; i < MAXTOCLASS; i++)
+	{
+		TimeOuts.to_q_return[i] = 5 DAYS;	/* option T */
+		TimeOuts.to_q_warning[i] = 0;		/* option T */
+	}
+	ServiceSwitchFile = "/etc/service.switch";
+	ServiceCacheMaxAge = (time_t) 10;
+	HostsFile = _PATH_HOSTS;
+	PidFile = newstr(_PATH_SENDMAILPID);
+	MustQuoteChars = "@,;:\\()[].'";
+	MciInfoTimeout = 30 MINUTES;
+	MaxRuleRecursion = MAXRULERECURSION;
+	MaxAliasRecursion = 10;
+	MaxMacroRecursion = 10;
+	ColonOkInAddr = TRUE;
+	DontLockReadFiles = TRUE;
+	DoubleBounceAddr = "postmaster";
+	snprintf(buf, sizeof buf, "%s%sdead.letter",
+		_PATH_VARTMP,
+		_PATH_VARTMP[sizeof _PATH_VARTMP - 2] == '/' ? "" : "/");
+	DeadLetterDrop = newstr(buf);
+	setdefuser();
+	setupmaps();
+	setupmailers();
+	setupheaders();
+}
+
+
+/*
+**  SETDEFUSER -- set/reset DefUser using DefUid (for initgroups())
+*/
+
+void
+setdefuser()
+{
+	struct passwd *defpwent;
+	static char defuserbuf[40];
+
+	DefUser = defuserbuf;
+	defpwent = sm_getpwuid(DefUid);
+	snprintf(defuserbuf, sizeof defuserbuf, "%s",
+		defpwent == NULL ? "nobody" : defpwent->pw_name);
+}
+/*
+**  SETUPMAILERS -- initialize default mailers
+*/
+
+void
+setupmailers()
+{
+	char buf[100];
+	extern void makemailer();
+
+	strcpy(buf, "prog, P=/bin/sh, F=lsoDq9, T=DNS/RFC822/X-Unix, A=sh -c \201u");
+	makemailer(buf);
+
+	strcpy(buf, "*file*, P=[FILE], F=lsDFMPEouq9, T=DNS/RFC822/X-Unix, A=FILE \201u");
+	makemailer(buf);
+
+	strcpy(buf, "*include*, P=/dev/null, F=su, A=INCLUDE \201u");
+	makemailer(buf);
+}
+/*
+**  SETUPMAPS -- set up map classes
+*/
+
+#define MAPDEF(name, ext, flags, parse, open, close, lookup, store) \
+	{ \
+		extern bool parse __P((MAP *, char *)); \
+		extern bool open __P((MAP *, int)); \
+		extern void close __P((MAP *)); \
+		extern char *lookup __P((MAP *, char *, char **, int *)); \
+		extern void store __P((MAP *, char *, char *)); \
+		s = stab(name, ST_MAPCLASS, ST_ENTER); \
+		s->s_mapclass.map_cname = name; \
+		s->s_mapclass.map_ext = ext; \
+		s->s_mapclass.map_cflags = flags; \
+		s->s_mapclass.map_parse = parse; \
+		s->s_mapclass.map_open = open; \
+		s->s_mapclass.map_close = close; \
+		s->s_mapclass.map_lookup = lookup; \
+		s->s_mapclass.map_store = store; \
+	}
+
+void
+setupmaps()
+{
+	register STAB *s;
+
+#ifdef NEWDB
+	MAPDEF("hash", ".db", MCF_ALIASOK|MCF_REBUILDABLE,
+		map_parseargs, hash_map_open, db_map_close,
+		db_map_lookup, db_map_store);
+
+	MAPDEF("btree", ".db", MCF_ALIASOK|MCF_REBUILDABLE,
+		map_parseargs, bt_map_open, db_map_close,
+		db_map_lookup, db_map_store);
+#endif
+
+#ifdef NDBM
+	MAPDEF("dbm", ".dir", MCF_ALIASOK|MCF_REBUILDABLE,
+		map_parseargs, ndbm_map_open, ndbm_map_close,
+		ndbm_map_lookup, ndbm_map_store);
+#endif
+
+#ifdef NIS
+	MAPDEF("nis", NULL, MCF_ALIASOK,
+		map_parseargs, nis_map_open, null_map_close,
+		nis_map_lookup, null_map_store);
+#endif
+
+#ifdef NISPLUS
+	MAPDEF("nisplus", NULL, MCF_ALIASOK,
+		map_parseargs, nisplus_map_open, null_map_close,
+		nisplus_map_lookup, null_map_store);
+#endif
+#ifdef LDAPMAP
+	MAPDEF("ldapx", NULL, 0,
+		ldap_map_parseargs, ldap_map_open, ldap_map_close,
+		ldap_map_lookup, null_map_store);
+#endif
+
+#ifdef HESIOD
+	MAPDEF("hesiod", NULL, MCF_ALIASOK|MCF_ALIASONLY,
+		map_parseargs, hes_map_open, null_map_close,
+		hes_map_lookup, null_map_store);
+#endif
+
+#if NETINFO
+	MAPDEF("netinfo", NULL, MCF_ALIASOK,
+		map_parseargs, ni_map_open, null_map_close,
+		ni_map_lookup, null_map_store);
+#endif
+
+#if 0
+	MAPDEF("dns", NULL, 0,
+		dns_map_init, null_map_open, null_map_close,
+		dns_map_lookup, null_map_store);
+#endif
+
+#if NAMED_BIND
+	/* best MX DNS lookup */
+	MAPDEF("bestmx", NULL, MCF_OPTFILE,
+		map_parseargs, null_map_open, null_map_close,
+		bestmx_map_lookup, null_map_store);
+#endif
+
+	MAPDEF("host", NULL, 0,
+		host_map_init, null_map_open, null_map_close,
+		host_map_lookup, null_map_store);
+
+	MAPDEF("text", NULL, MCF_ALIASOK,
+		map_parseargs, text_map_open, null_map_close,
+		text_map_lookup, null_map_store);
+
+	MAPDEF("stab", NULL, MCF_ALIASOK|MCF_ALIASONLY,
+		map_parseargs, stab_map_open, null_map_close,
+		stab_map_lookup, stab_map_store);
+
+	MAPDEF("implicit", NULL, MCF_ALIASOK|MCF_ALIASONLY|MCF_REBUILDABLE,
+		map_parseargs, impl_map_open, impl_map_close,
+		impl_map_lookup, impl_map_store);
+
+	/* access to system passwd file */
+	MAPDEF("user", NULL, MCF_OPTFILE,
+		map_parseargs, user_map_open, null_map_close,
+		user_map_lookup, null_map_store);
+
+	/* dequote map */
+	MAPDEF("dequote", NULL, 0,
+		dequote_init, null_map_open, null_map_close,
+		dequote_map, null_map_store);
+
+#if USERDB
+	/* user database */
+	MAPDEF("userdb", ".db", 0,
+		map_parseargs, null_map_open, null_map_close,
+		udb_map_lookup, null_map_store);
+#endif
+
+	/* arbitrary programs */
+	MAPDEF("program", NULL, MCF_ALIASOK,
+		map_parseargs, null_map_open, null_map_close,
+		prog_map_lookup, null_map_store);
+
+	/* sequenced maps */
+	MAPDEF("sequence", NULL, MCF_ALIASOK,
+		seq_map_parse, null_map_open, null_map_close,
+		seq_map_lookup, seq_map_store);
+
+	/* switched interface to sequenced maps */
+	MAPDEF("switch", NULL, MCF_ALIASOK,
+		map_parseargs, switch_map_open, null_map_close,
+		seq_map_lookup, seq_map_store);
+
+	/* null map lookup -- really for internal use only */
+	MAPDEF("null", NULL, MCF_ALIASOK|MCF_OPTFILE,
+		map_parseargs, null_map_open, null_map_close,
+		null_map_lookup, null_map_store);
+
+#if _FFR_SYSLOG_MAP
+	/* syslog map -- logs information to syslog */
+	MAPDEF("syslog", NULL, 0,
+	       syslog_map_parseargs, null_map_open, null_map_close,
+	       syslog_map_lookup, null_map_store);
+#endif
+}
+
+#undef MAPDEF
+/*
+**  INITHOSTMAPS -- initial host-dependent maps
+**
+**	This should act as an interface to any local service switch
+**	provided by the host operating system.
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		Should define maps "host" and "users" as necessary
+**		for this OS.  If they are not defined, they will get
+**		a default value later.  It should check to make sure
+**		they are not defined first, since it's possible that
+**		the config file has provided an override.
+*/
+
+void
+inithostmaps()
+{
+	register int i;
+	int nmaps;
+	char *maptype[MAXMAPSTACK];
+	short mapreturn[MAXMAPACTIONS];
+	char buf[MAXLINE];
+
+	/*
+	**  Set up default hosts maps.
+	*/
+
+#if 0
+	nmaps = switch_map_find("hosts", maptype, mapreturn);
+	for (i = 0; i < nmaps; i++)
+	{
+		if (strcmp(maptype[i], "files") == 0 &&
+		    stab("hosts.files", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "hosts.files text -k 0 -v 1 /etc/hosts");
+			(void) makemapentry(buf);
+		}
+#if NAMED_BIND
+		else if (strcmp(maptype[i], "dns") == 0 &&
+		    stab("hosts.dns", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "hosts.dns dns A");
+			(void) makemapentry(buf);
+		}
+#endif
+#ifdef NISPLUS
+		else if (strcmp(maptype[i], "nisplus") == 0 &&
+		    stab("hosts.nisplus", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "hosts.nisplus nisplus -k name -v address -d hosts.org_dir");
+			(void) makemapentry(buf);
+		}
+#endif
+#ifdef NIS
+		else if (strcmp(maptype[i], "nis") == 0 &&
+		    stab("hosts.nis", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "hosts.nis nis -d -k 0 -v 1 hosts.byname");
+			(void) makemapentry(buf);
+		}
+#endif
+#if NETINFO
+		else if (strcmp(maptype[i], "netinfo") == 0) &&
+		    stab("hosts.netinfo", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "hosts.netinfo netinfo -v name /machines");
+			(void) makemapentry(buf);
+		}
+#endif
+	}
+#endif
+
+	/*
+	**  Make sure we have a host map.
+	*/
+
+	if (stab("host", ST_MAP, ST_FIND) == NULL)
+	{
+		/* user didn't initialize: set up host map */
+		strcpy(buf, "host host");
+#if NAMED_BIND
+		if (ConfigLevel >= 2)
+			strcat(buf, " -a.");
+#endif
+		(void) makemapentry(buf);
+	}
+
+	/*
+	**  Set up default aliases maps
+	*/
+
+	nmaps = switch_map_find("aliases", maptype, mapreturn);
+	for (i = 0; i < nmaps; i++)
+	{
+		if (strcmp(maptype[i], "files") == 0 &&
+		    stab("aliases.files", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "aliases.files null");
+			(void) makemapentry(buf);
+		}
+#ifdef NISPLUS
+		else if (strcmp(maptype[i], "nisplus") == 0 &&
+		    stab("aliases.nisplus", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "aliases.nisplus nisplus -kalias -vexpansion -d mail_aliases.org_dir");
+			(void) makemapentry(buf);
+		}
+#endif
+#ifdef NIS
+		else if (strcmp(maptype[i], "nis") == 0 &&
+		    stab("aliases.nis", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "aliases.nis nis -d mail.aliases");
+			(void) makemapentry(buf);
+		}
+#endif
+#ifdef NETINFO
+		else if (strcmp(maptype[i], "netinfo") == 0 &&
+		    stab("aliases.netinfo", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "aliases.netinfo netinfo -z, /aliases");
+			(void) makemapentry(buf);
+		}
+#endif
+#ifdef HESIOD
+		else if (strcmp(maptype[i], "hesiod") == 0 &&
+		    stab("aliases.hesiod", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "aliases.hesiod hesiod aliases");
+			(void) makemapentry(buf);
+		}
+#endif
+	}
+	if (stab("aliases", ST_MAP, ST_FIND) == NULL)
+	{
+		strcpy(buf, "aliases switch aliases");
+		(void) makemapentry(buf);
+	}
+
+#if 0		/* "user" map class is a better choice */
+	/*
+	**  Set up default users maps.
+	*/
+
+	nmaps = switch_map_find("passwd", maptype, mapreturn);
+	for (i = 0; i < nmaps; i++)
+	{
+		if (strcmp(maptype[i], "files") == 0 &&
+		    stab("users.files", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "users.files text -m -z: -k0 -v6 /etc/passwd");
+			(void) makemapentry(buf);
+		}
+#ifdef NISPLUS
+		else if (strcmp(maptype[i], "nisplus") == 0 &&
+		    stab("users.nisplus", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "users.nisplus nisplus -m -kname -vhome -d passwd.org_dir");
+			(void) makemapentry(buf);
+		}
+#endif
+#ifdef NIS
+		else if (strcmp(maptype[i], "nis") == 0 &&
+		    stab("users.nis", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "users.nis nis -m -d passwd.byname");
+			(void) makemapentry(buf);
+		}
+#endif
+#ifdef HESIOD
+		else if (strcmp(maptype[i], "hesiod") == 0) &&
+		    stab("users.hesiod", ST_MAP, ST_FIND) == NULL)
+		{
+			strcpy(buf, "users.hesiod hesiod");
+			(void) makemapentry(buf);
+		}
+#endif
+	}
+	if (stab("users", ST_MAP, ST_FIND) == NULL)
+	{
+		strcpy(buf, "users switch -m passwd");
+		(void) makemapentry(buf);
+	}
+#endif
+}
+/*
+**  SWITCH_MAP_FIND -- find the list of types associated with a map
+**
+**	This is the system-dependent interface to the service switch.
+**
+**	Parameters:
+**		service -- the name of the service of interest.
+**		maptype -- an out-array of strings containing the types
+**			of access to use for this service.  There can
+**			be at most MAXMAPSTACK types for a single service.
+**		mapreturn -- an out-array of return information bitmaps
+**			for the map.
+**
+**	Returns:
+**		The number of map types filled in, or -1 for failure.
+*/
+
+#if defined(SOLARIS) || (defined(sony_news) && defined(__svr4))
+# define _USE_SUN_NSSWITCH_
+#endif
+
+#ifdef _USE_SUN_NSSWITCH_
+# include <nsswitch.h>
+#endif
+
+#if defined(ultrix) || (defined(__osf__) && defined(__alpha))
+# define _USE_DEC_SVC_CONF_
+#endif
+
+#ifdef _USE_DEC_SVC_CONF_
+# include <sys/svcinfo.h>
+#endif
+
+int
+switch_map_find(service, maptype, mapreturn)
+	char *service;
+	char *maptype[MAXMAPSTACK];
+	short mapreturn[MAXMAPACTIONS];
+{
+	int svcno;
+
+#ifdef _USE_SUN_NSSWITCH_
+	struct __nsw_switchconfig *nsw_conf;
+	enum __nsw_parse_err pserr;
+	struct __nsw_lookup *lk;
+	static struct __nsw_lookup lkp0 =
+		{ "files", {1, 0, 0, 0}, NULL, NULL };
+	static struct __nsw_switchconfig lkp_default =
+		{ 0, "sendmail", 3, &lkp0 };
+
+	for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
+		mapreturn[svcno] = 0;
+
+	if ((nsw_conf = __nsw_getconfig(service, &pserr)) == NULL)
+		lk = lkp_default.lookups;
+	else
+		lk = nsw_conf->lookups;
+	svcno = 0;
+	while (lk != NULL)
+	{
+		maptype[svcno] = lk->service_name;
+		if (lk->actions[__NSW_NOTFOUND] == __NSW_RETURN)
+			mapreturn[MA_NOTFOUND] |= 1 << svcno;
+		if (lk->actions[__NSW_TRYAGAIN] == __NSW_RETURN)
+			mapreturn[MA_TRYAGAIN] |= 1 << svcno;
+		if (lk->actions[__NSW_UNAVAIL] == __NSW_RETURN)
+			mapreturn[MA_TRYAGAIN] |= 1 << svcno;
+		svcno++;
+		lk = lk->next;
+	}
+	return svcno;
+#endif
+
+#ifdef _USE_DEC_SVC_CONF_
+	struct svcinfo *svcinfo;
+	int svc;
+
+	for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
+		mapreturn[svcno] = 0;
+
+	svcinfo = getsvc();
+	if (svcinfo == NULL)
+		goto punt;
+	if (strcmp(service, "hosts") == 0)
+		svc = SVC_HOSTS;
+	else if (strcmp(service, "aliases") == 0)
+		svc = SVC_ALIASES;
+	else if (strcmp(service, "passwd") == 0)
+		svc = SVC_PASSWD;
+	else
+		return -1;
+	for (svcno = 0; svcno < SVC_PATHSIZE; svcno++)
+	{
+		switch (svcinfo->svcpath[svc][svcno])
+		{
+		  case SVC_LOCAL:
+			maptype[svcno] = "files";
+			break;
+
+		  case SVC_YP:
+			maptype[svcno] = "nis";
+			break;
+
+		  case SVC_BIND:
+			maptype[svcno] = "dns";
+			break;
+
+#ifdef SVC_HESIOD
+		  case SVC_HESIOD:
+			maptype[svcno] = "hesiod";
+			break;
+#endif
+
+		  case SVC_LAST:
+			return svcno;
+		}
+	}
+	return svcno;
+#endif
+
+#if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_)
+	/*
+	**  Fall-back mechanism.
+	*/
+
+	STAB *st;
+	time_t now = curtime();
+
+	for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
+		mapreturn[svcno] = 0;
+
+	if ((now - ServiceCacheTime) > (time_t) ServiceCacheMaxAge)
+	{
+		/* (re)read service switch */
+		register FILE *fp;
+
+		if (ConfigFileRead)
+			ServiceCacheTime = now;
+		fp = fopen(ServiceSwitchFile, "r");
+		if (fp != NULL)
+		{
+			char buf[MAXLINE];
+
+			while (fgets(buf, sizeof buf, fp) != NULL)
+			{
+				register char *p;
+
+				p = strpbrk(buf, "#\n");
+				if (p != NULL)
+					*p = '\0';
+				p = strpbrk(buf, " \t");
+				if (p != NULL)
+					*p++ = '\0';
+				if (buf[0] == '\0')
+					continue;
+				while (isspace(*p))
+					p++;
+				if (*p == '\0')
+					continue;
+
+				/*
+				**  Find/allocate space for this service entry.
+				**	Space for all of the service strings
+				**	are allocated at once.  This means
+				**	that we only have to free the first
+				**	one to free all of them.
+				*/
+
+				st = stab(buf, ST_SERVICE, ST_ENTER);
+				if (st->s_service[0] != NULL)
+					free((void *) st->s_service[0]);
+				p = newstr(p);
+				for (svcno = 0; svcno < MAXMAPSTACK; )
+				{
+					if (*p == '\0')
+						break;
+					st->s_service[svcno++] = p;
+					p = strpbrk(p, " \t");
+					if (p == NULL)
+						break;
+					*p++ = '\0';
+					while (isspace(*p))
+						p++;
+				}
+				if (svcno < MAXMAPSTACK)
+					st->s_service[svcno] = NULL;
+			}
+			fclose(fp);
+		}
+	}
+
+	/* look up entry in cache */
+	st = stab(service, ST_SERVICE, ST_FIND);
+	if (st != NULL && st->s_service[0] != NULL)
+	{
+		/* extract data */
+		svcno = 0;
+		while (svcno < MAXMAPSTACK)
+		{
+			maptype[svcno] = st->s_service[svcno];
+			if (maptype[svcno++] == NULL)
+				break;
+		}
+		return --svcno;
+	}
+#endif
+
+	/* if the service file doesn't work, use an absolute fallback */
+  punt:
+	for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
+		mapreturn[svcno] = 0;
+	svcno = 0;
+	if (strcmp(service, "aliases") == 0)
+	{
+		maptype[svcno++] = "files";
+#ifdef AUTO_NIS_ALIASES
+# ifdef NISPLUS
+		maptype[svcno++] = "nisplus";
+# endif
+# ifdef NIS
+		maptype[svcno++] = "nis";
+# endif
+#endif
+		return svcno;
+	}
+	if (strcmp(service, "hosts") == 0)
+	{
+# if NAMED_BIND
+		maptype[svcno++] = "dns";
+# else
+#  if defined(sun) && !defined(BSD) && !defined(_USE_SUN_NSSWITCH_)
+		/* SunOS */
+		maptype[svcno++] = "nis";
+#  endif
+# endif
+		maptype[svcno++] = "files";
+		return svcno;
+	}
+	return -1;
+}
+/*
+**  USERNAME -- return the user id of the logged in user.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		The login name of the logged in user.
+**
+**	Side Effects:
+**		none.
+**
+**	Notes:
+**		The return value is statically allocated.
+*/
+
+char *
+username()
+{
+	static char *myname = NULL;
+	extern char *getlogin();
+	register struct passwd *pw;
+
+	/* cache the result */
+	if (myname == NULL)
+	{
+		myname = getlogin();
+		if (myname == NULL || myname[0] == '\0')
+		{
+			pw = sm_getpwuid(RealUid);
+			if (pw != NULL)
+				myname = newstr(pw->pw_name);
+		}
+		else
+		{
+			uid_t uid = RealUid;
+
+			myname = newstr(myname);
+			if ((pw = sm_getpwnam(myname)) == NULL ||
+			      (uid != 0 && uid != pw->pw_uid))
+			{
+				pw = sm_getpwuid(uid);
+				if (pw != NULL)
+					myname = newstr(pw->pw_name);
+			}
+		}
+		if (myname == NULL || myname[0] == '\0')
+		{
+			syserr("554 Who are you?");
+			myname = "postmaster";
+		}
+	}
+
+	return (myname);
+}
+/*
+**  TTYPATH -- Get the path of the user's tty
+**
+**	Returns the pathname of the user's tty.  Returns NULL if
+**	the user is not logged in or if s/he has write permission
+**	denied.
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		pathname of the user's tty.
+**		NULL if not logged in or write permission denied.
+**
+**	Side Effects:
+**		none.
+**
+**	WARNING:
+**		Return value is in a local buffer.
+**
+**	Called By:
+**		savemail
+*/
+
+char *
+ttypath()
+{
+	struct stat stbuf;
+	register char *pathn;
+	extern char *ttyname();
+	extern char *getlogin();
+
+	/* compute the pathname of the controlling tty */
+	if ((pathn = ttyname(2)) == NULL && (pathn = ttyname(1)) == NULL &&
+	    (pathn = ttyname(0)) == NULL)
+	{
+		errno = 0;
+		return (NULL);
+	}
+
+	/* see if we have write permission */
+	if (stat(pathn, &stbuf) < 0 || !bitset(02, stbuf.st_mode))
+	{
+		errno = 0;
+		return (NULL);
+	}
+
+	/* see if the user is logged in */
+	if (getlogin() == NULL)
+		return (NULL);
+
+	/* looks good */
+	return (pathn);
+}
+/*
+**  CHECKCOMPAT -- check for From and To person compatible.
+**
+**	This routine can be supplied on a per-installation basis
+**	to determine whether a person is allowed to send a message.
+**	This allows restriction of certain types of internet
+**	forwarding or registration of users.
+**
+**	If the hosts are found to be incompatible, an error
+**	message should be given using "usrerr" and an EX_ code
+**	should be returned.  You can also set to->q_status to
+**	a DSN-style status code.
+**
+**	EF_NO_BODY_RETN can be set in e->e_flags to suppress the
+**	body during the return-to-sender function; this should be done
+**	on huge messages.  This bit may already be set by the ESMTP
+**	protocol.
+**
+**	Parameters:
+**		to -- the person being sent to.
+**
+**	Returns:
+**		an exit status
+**
+**	Side Effects:
+**		none (unless you include the usrerr stuff)
+*/
+
+int
+checkcompat(to, e)
+	register ADDRESS *to;
+	register ENVELOPE *e;
+{
+# ifdef lint
+	if (to == NULL)
+		to++;
+# endif /* lint */
+
+	if (tTd(49, 1))
+		printf("checkcompat(to=%s, from=%s)\n",
+			to->q_paddr, e->e_from.q_paddr);
+
+# ifdef EXAMPLE_CODE
+	/* this code is intended as an example only */
+	register STAB *s;
+
+	s = stab("arpa", ST_MAILER, ST_FIND);
+	if (s != NULL && strcmp(e->e_from.q_mailer->m_name, "local") != 0 &&
+	    to->q_mailer == s->s_mailer)
+	{
+		usrerr("553 No ARPA mail through this machine: see your system administration");
+		/* e->e_flags |= EF_NO_BODY_RETN; to supress body on return */
+		to->q_status = "5.7.1";
+		return (EX_UNAVAILABLE);
+	}
+# endif /* EXAMPLE_CODE */
+	return (EX_OK);
+}
+/*
+**  SETSIGNAL -- set a signal handler
+**
+**	This is essentially old BSD "signal(3)".
+*/
+
+sigfunc_t
+setsignal(sig, handler)
+	int sig;
+	sigfunc_t handler;
+{
+#if defined(SYS5SIGNALS) || defined(BSD4_3)
+# ifdef BSD4_3
+	return signal(sig, handler);
+# else
+	return sigset(sig, handler);
+# endif
+#else
+	struct sigaction n, o;
+
+	bzero(&n, sizeof n);
+# if USE_SA_SIGACTION
+	n.sa_sigaction = (void(*)(int, siginfo_t *, void *)) handler;
+	n.sa_flags = SA_RESTART|SA_SIGINFO;
+# else
+	n.sa_handler = handler;
+#  ifdef SA_RESTART
+	n.sa_flags = SA_RESTART;
+#  endif
+# endif
+	if (sigaction(sig, &n, &o) < 0)
+		return SIG_ERR;
+	return o.sa_handler;
+#endif
+}
+/*
+**  BLOCKSIGNAL -- hold a signal to prevent delivery
+**
+**	Parameters:
+**		sig -- the signal to block.
+**
+**	Returns:
+**		1 signal was previously blocked
+**		0 signal was not previously blocked
+**		-1 on failure.
+*/
+
+int
+blocksignal(sig)
+	int sig;
+{
+#ifdef BSD4_3
+# ifndef sigmask
+#  define sigmask(s)	(1 << ((s) - 1))
+# endif
+	return (sigblock(sigmask(sig)) & sigmask(sig)) != 0;
+#else
+# ifdef ALTOS_SYSTEM_V
+	sigfunc_t handler;
+
+	handler = sigset(sig, SIG_HOLD);
+	if (handler == SIG_ERR)
+		return -1;
+	else
+		return handler == SIG_HOLD;
+# else
+	sigset_t sset, oset;
+
+	sigemptyset(&sset);
+	sigaddset(&sset, sig);
+	if (sigprocmask(SIG_BLOCK, &sset, &oset) < 0)
+		return -1;
+	else
+		return sigismember(&oset, sig);
+# endif
+#endif
+}
+/*
+**  RELEASESIGNAL -- release a held signal
+**
+**	Parameters:
+**		sig -- the signal to release.
+**
+**	Returns:
+**		1 signal was previously blocked
+**		0 signal was not previously blocked
+**		-1 on failure.
+*/
+
+int
+releasesignal(sig)
+	int sig;
+{
+#ifdef BSD4_3
+	return (sigsetmask(sigblock(0) & ~sigmask(sig)) & sigmask(sig)) != 0;
+#else
+# ifdef ALTOS_SYSTEM_V
+	sigfunc_t handler;
+
+	handler = sigset(sig, SIG_HOLD);
+	if (sigrelse(sig) < 0)
+		return -1;
+	else
+		return handler == SIG_HOLD;
+# else
+	sigset_t sset, oset;
+
+	sigemptyset(&sset);
+	sigaddset(&sset, sig);
+	if (sigprocmask(SIG_UNBLOCK, &sset, &oset) < 0)
+		return -1;
+	else
+		return sigismember(&oset, sig);
+# endif
+#endif
+}
+/*
+**  HOLDSIGS -- arrange to hold all signals
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Arranges that signals are held.
+*/
+
+void
+holdsigs()
+{
+}
+/*
+**  RLSESIGS -- arrange to release all signals
+**
+**	This undoes the effect of holdsigs.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Arranges that signals are released.
+*/
+
+void
+rlsesigs()
+{
+}
+/*
+**  INIT_MD -- do machine dependent initializations
+**
+**	Systems that have global modes that should be set should do
+**	them here rather than in main.
+*/
+
+#ifdef _AUX_SOURCE
+# include <compat.h>
+#endif
+
+#if SHARE_V1
+# include <shares.h>
+#endif
+
+void
+init_md(argc, argv)
+	int argc;
+	char **argv;
+{
+#ifdef _AUX_SOURCE
+	setcompat(getcompat() | COMPAT_BSDPROT);
+#endif
+
+#ifdef SUN_EXTENSIONS
+	init_md_sun();
+#endif
+
+#if _CONVEX_SOURCE
+	/* keep gethostby*() from stripping the local domain name */
+	set_domain_trim_off();
+#endif
+#if SECUREWARE || defined(_SCO_unix_)
+	set_auth_parameters(argc, argv);
+
+# ifdef _SCO_unix_
+	/*
+	**  This is required for highest security levels (the kernel
+	**  won't let it call set*uid() or run setuid binaries without
+	**  it).  It may be necessary on other SECUREWARE systems.
+	*/
+
+	if (getluid() == -1)
+		setluid(0);
+# endif
+#endif
+
+#ifdef VENDOR_DEFAULT
+	VendorCode = VENDOR_DEFAULT;
+#else
+	VendorCode = VENDOR_BERKELEY;
+#endif
+}
+/*
+**  INIT_VENDOR_MACROS -- vendor-dependent macro initializations
+**
+**	Called once, on startup.
+**
+**	Parameters:
+**		e -- the global envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		vendor-dependent.
+*/
+
+void
+init_vendor_macros(e)
+	register ENVELOPE *e;
+{
+}
+/*
+**  GETLA -- get the current load average
+**
+**	This code stolen from la.c.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		The current load average as an integer.
+**
+**	Side Effects:
+**		none.
+*/
+
+/* try to guess what style of load average we have */
+#define LA_ZERO		1	/* always return load average as zero */
+#define LA_INT		2	/* read kmem for avenrun; interpret as long */
+#define LA_FLOAT	3	/* read kmem for avenrun; interpret as float */
+#define LA_SUBR		4	/* call getloadavg */
+#define LA_MACH		5	/* MACH load averages (as on NeXT boxes) */
+#define LA_SHORT	6	/* read kmem for avenrun; interpret as short */
+#define LA_PROCSTR	7	/* read string ("1.17") from /proc/loadavg */
+#define LA_READKSYM	8	/* SVR4: use MIOC_READKSYM ioctl call */
+#define LA_DGUX		9	/* special DGUX implementation */
+#define LA_HPUX		10	/* special HPUX implementation */
+#define LA_IRIX6	11	/* special IRIX 6.2 implementation */
+#define LA_KSTAT	12	/* special Solaris kstat(3k) implementation */
+#define LA_DEVSHORT	13	/* read short from a device */
+#define LA_ALPHAOSF	14	/* Digital UNIX (OSF/1 on Alpha) table() call */
+
+/* do guesses based on general OS type */
+#ifndef LA_TYPE
+# define LA_TYPE	LA_ZERO
+#endif
+
+#ifndef FSHIFT
+# if defined(unixpc)
+#  define FSHIFT	5
+# endif
+
+# if defined(__alpha) || defined(IRIX)
+#  define FSHIFT	10
+# endif
+
+#endif
+
+#ifndef FSHIFT
+# define FSHIFT		8
+#endif
+
+#ifndef FSCALE
+# define FSCALE		(1 << FSHIFT)
+#endif
+
+#ifndef LA_AVENRUN
+# ifdef SYSTEM5
+#  define LA_AVENRUN	"avenrun"
+# else
+#  define LA_AVENRUN	"_avenrun"
+# endif
+#endif
+
+/* _PATH_KMEM should be defined in <paths.h> */
+#ifndef _PATH_KMEM
+# define _PATH_KMEM	"/dev/kmem"
+#endif
+
+#if (LA_TYPE == LA_INT) || (LA_TYPE == LA_FLOAT) || (LA_TYPE == LA_SHORT)
+
+#include <nlist.h>
+
+#ifdef IRIX64
+# define nlist		nlist64
+#endif
+
+/* _PATH_UNIX should be defined in <paths.h> */
+#ifndef _PATH_UNIX
+# if defined(SYSTEM5)
+#  define _PATH_UNIX	"/unix"
+# else
+#  define _PATH_UNIX	"/vmunix"
+# endif
+#endif
+
+#ifdef _AUX_SOURCE
+struct nlist	Nl[2];
+#else
+struct nlist	Nl[] =
+{
+	{ LA_AVENRUN },
+	{ 0 },
+};
+#endif
+#define	X_AVENRUN	0
+
+int
+getla()
+{
+	static int kmem = -1;
+#if LA_TYPE == LA_INT
+	long avenrun[3];
+#else
+# if LA_TYPE == LA_SHORT
+	short avenrun[3];
+# else
+	double avenrun[3];
+# endif
+#endif
+	extern int errno;
+	extern off_t lseek();
+
+	if (kmem < 0)
+	{
+#ifdef _AUX_SOURCE
+		strcpy(Nl[X_AVENRUN].n_name, LA_AVENRUN);
+		Nl[1].n_name[0] = '\0';
+#endif
+
+#if defined(_AIX3) || defined(_AIX4)
+		if (knlist(Nl, 1, sizeof Nl[0]) < 0)
+#else
+		if (nlist(_PATH_UNIX, Nl) < 0)
+#endif
+		{
+			if (tTd(3, 1))
+				printf("getla: nlist(%s): %s\n", _PATH_UNIX,
+					errstring(errno));
+			return (-1);
+		}
+		if (Nl[X_AVENRUN].n_value == 0)
+		{
+			if (tTd(3, 1))
+				printf("getla: nlist(%s, %s) ==> 0\n",
+					_PATH_UNIX, LA_AVENRUN);
+			return (-1);
+		}
+#ifdef NAMELISTMASK
+		Nl[X_AVENRUN].n_value &= NAMELISTMASK;
+#endif
+
+		kmem = open(_PATH_KMEM, 0, 0);
+		if (kmem < 0)
+		{
+			if (tTd(3, 1))
+				printf("getla: open(/dev/kmem): %s\n",
+					errstring(errno));
+			return (-1);
+		}
+		(void) fcntl(kmem, F_SETFD, 1);
+	}
+	if (tTd(3, 20))
+		printf("getla: symbol address = %#lx\n",
+			(u_long) Nl[X_AVENRUN].n_value);
+	if (lseek(kmem, (off_t) Nl[X_AVENRUN].n_value, SEEK_SET) == -1 ||
+	    read(kmem, (char *) avenrun, sizeof(avenrun)) < sizeof(avenrun))
+	{
+		/* thank you Ian */
+		if (tTd(3, 1))
+			printf("getla: lseek or read: %s\n", errstring(errno));
+		return (-1);
+	}
+# if (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT)
+	if (tTd(3, 5))
+	{
+#  if LA_TYPE == LA_SHORT
+		printf("getla: avenrun = %d", avenrun[0]);
+		if (tTd(3, 15))
+			printf(", %d, %d", avenrun[1], avenrun[2]);
+#  else
+		printf("getla: avenrun = %ld", avenrun[0]);
+		if (tTd(3, 15))
+			printf(", %ld, %ld", avenrun[1], avenrun[2]);
+#  endif
+		printf("\n");
+	}
+	if (tTd(3, 1))
+		printf("getla: %d\n", (int) (avenrun[0] + FSCALE/2) >> FSHIFT);
+	return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT);
+# else /* LA_TYPE == LA_FLOAT */
+	if (tTd(3, 5))
+	{
+		printf("getla: avenrun = %g", avenrun[0]);
+		if (tTd(3, 15))
+			printf(", %g, %g", avenrun[1], avenrun[2]);
+		printf("\n");
+	}
+	if (tTd(3, 1))
+		printf("getla: %d\n", (int) (avenrun[0] +0.5));
+	return ((int) (avenrun[0] + 0.5));
+# endif
+}
+
+#endif /* LA_TYPE == LA_INT or LA_SHORT or LA_FLOAT */
+
+#if LA_TYPE == LA_READKSYM
+
+# include <sys/ksym.h>
+
+getla()
+{
+	static int kmem = -1;
+	long avenrun[3];
+	extern int errno;
+	struct mioc_rksym mirk;
+
+	if (kmem < 0)
+	{
+		kmem = open("/dev/kmem", 0, 0);
+		if (kmem < 0)
+		{
+			if (tTd(3, 1))
+				printf("getla: open(/dev/kmem): %s\n",
+					errstring(errno));
+			return (-1);
+		}
+		(void) fcntl(kmem, F_SETFD, 1);
+	}
+	mirk.mirk_symname = LA_AVENRUN;
+	mirk.mirk_buf = avenrun;
+	mirk.mirk_buflen = sizeof(avenrun);
+	if (ioctl(kmem, MIOC_READKSYM, &mirk) < 0)
+	{
+		if (tTd(3, 1))
+			printf("getla: ioctl(MIOC_READKSYM) failed: %s\n",
+				errstring(errno));
+		return -1;
+	}
+	if (tTd(3, 5))
+	{
+		printf("getla: avenrun = %d", avenrun[0]);
+		if (tTd(3, 15))
+			printf(", %d, %d", avenrun[1], avenrun[2]);
+		printf("\n");
+	}
+	if (tTd(3, 1))
+		printf("getla: %d\n", (int) (avenrun[0] + FSCALE/2) >> FSHIFT);
+	return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT);
+}
+
+#endif /* LA_TYPE == LA_READKSYM */
+
+#if LA_TYPE == LA_DGUX
+
+# include <sys/dg_sys_info.h>
+
+int
+getla()
+{
+	struct dg_sys_info_load_info load_info;
+
+	dg_sys_info((long *)&load_info,
+		DG_SYS_INFO_LOAD_INFO_TYPE, DG_SYS_INFO_LOAD_VERSION_0);
+
+	if (tTd(3, 1))
+		printf("getla: %d\n", (int) (load_info.one_minute + 0.5));
+
+	return((int) (load_info.one_minute + 0.5));
+}
+
+#endif /* LA_TYPE == LA_DGUX */
+
+#if LA_TYPE == LA_HPUX
+
+/* forward declarations to keep gcc from complaining */
+struct pst_dynamic;
+struct pst_status;
+struct pst_static;
+struct pst_vminfo;
+struct pst_diskinfo;
+struct pst_processor;
+struct pst_lv;
+struct pst_swapinfo;
+
+# include <sys/param.h>
+# include <sys/pstat.h>
+
+int
+getla()
+{
+	struct pst_dynamic pstd;
+
+	if (pstat_getdynamic(&pstd, sizeof(struct pst_dynamic),
+			     (size_t) 1, 0) == -1)
+		return 0;
+
+	if (tTd(3, 1))
+		printf("getla: %d\n", (int) (pstd.psd_avg_1_min + 0.5));
+
+	return (int) (pstd.psd_avg_1_min + 0.5);
+}
+
+#endif /* LA_TYPE == LA_HPUX */
+
+#if LA_TYPE == LA_SUBR
+
+int
+getla()
+{
+	double avenrun[3];
+
+	if (getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0])) < 0)
+	{
+		if (tTd(3, 1))
+			perror("getla: getloadavg failed:");
+		return (-1);
+	}
+	if (tTd(3, 1))
+		printf("getla: %d\n", (int) (avenrun[0] +0.5));
+	return ((int) (avenrun[0] + 0.5));
+}
+
+#endif /* LA_TYPE == LA_SUBR */
+
+#if LA_TYPE == LA_MACH
+
+/*
+**  This has been tested on NEXTSTEP release 2.1/3.X.
+*/
+
+#if defined(NX_CURRENT_COMPILER_RELEASE) && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_0
+# include <mach/mach.h>
+#else
+# include <mach.h>
+#endif
+
+int
+getla()
+{
+	processor_set_t default_set;
+	kern_return_t error;
+	unsigned int info_count;
+	struct processor_set_basic_info info;
+	host_t host;
+
+	error = processor_set_default(host_self(), &default_set);
+	if (error != KERN_SUCCESS)
+	{
+		if (tTd(3, 1))
+			perror("getla: processor_set_default failed:");
+		return -1;
+	}
+	info_count = PROCESSOR_SET_BASIC_INFO_COUNT;
+	if (processor_set_info(default_set, PROCESSOR_SET_BASIC_INFO,
+			       &host, (processor_set_info_t)&info,
+			       &info_count) != KERN_SUCCESS)
+	{
+		if (tTd(3, 1))
+			perror("getla: processor_set_info failed:");
+		return -1;
+	}
+	if (tTd(3, 1))
+		printf("getla: %d\n", (int) (info.load_average + (LOAD_SCALE / 2)) / LOAD_SCALE);
+	return (int) (info.load_average + (LOAD_SCALE / 2)) / LOAD_SCALE;
+}
+
+#endif /* LA_TYPE == LA_MACH */
+
+#if LA_TYPE == LA_PROCSTR
+
+/*
+**  Read /proc/loadavg for the load average.  This is assumed to be
+**  in a format like "0.15 0.12 0.06".
+**
+**	Initially intended for Linux.  This has been in the kernel
+**	since at least 0.99.15.
+*/
+
+# ifndef _PATH_LOADAVG
+#  define _PATH_LOADAVG	"/proc/loadavg"
+# endif
+
+int
+getla()
+{
+	double avenrun;
+	register int result;
+	FILE *fp;
+
+	fp = fopen(_PATH_LOADAVG, "r");
+	if (fp == NULL)
+	{
+		if (tTd(3, 1))
+			printf("getla: fopen(%s): %s\n",
+				_PATH_LOADAVG, errstring(errno));
+		return -1;
+	}
+	result = fscanf(fp, "%lf", &avenrun);
+	fclose(fp);
+	if (result != 1)
+	{
+		if (tTd(3, 1))
+			printf("getla: fscanf() = %d: %s\n",
+				result, errstring(errno));
+		return -1;
+	}
+
+	if (tTd(3, 1))
+		printf("getla(): %.2f\n", avenrun);
+
+	return ((int) (avenrun + 0.5));
+}
+
+#endif /* LA_TYPE == LA_PROCSTR */
+
+#if LA_TYPE == LA_IRIX6
+
+#include <nlist.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define	X_AVENRUN	0
+struct nlist	Nl32[] =
+{
+	{ LA_AVENRUN },
+	{ 0 },
+};
+struct nlist64	Nl64[] =
+{
+	{ LA_AVENRUN },
+	{ 0 },
+};
+
+int getla(void)
+{
+	static int kmem = -1;
+	static enum { getla_none, getla_32, getla_64 } kernel_type =
+					getla_none;
+	uint32_t avenrun[3];
+
+	if (kernel_type == getla_none)
+	{
+		/* Try 32 bit kernel ... */
+		errno = 0;
+		if (nlist(_PATH_UNIX, Nl32) == 0)
+		{
+			if (tTd(3, 20))
+				printf("getla: Kernel is 32bit\n");
+
+			if (Nl32[X_AVENRUN].n_value == 0)
+			{
+				if (tTd(3, 1))
+					printf("getla: nlist(%s, %s) ==> 0\n",
+						_PATH_UNIX, LA_AVENRUN);
+			}
+			else
+				kernel_type = getla_32;
+		}
+		else if (errno != 0)
+		{
+			if (tTd(3, 1))
+				printf("getla: nlist(%s): %s\n",
+					_PATH_UNIX, errstring(errno));
+		}
+		else
+		{
+			if (tTd(3, 20))
+				printf("getla: Kernel is not 32bit\n");
+		}
+
+		/* Try 64 bit kernel ... */
+		errno = 0;
+		if (nlist64(_PATH_UNIX, Nl64) == 0)
+		{
+			if (tTd(3, 20))
+			printf("getla: Kernel is 64bit\n");
+
+			if (Nl64[X_AVENRUN].n_value == 0)
+			{
+				if (tTd(3, 1))
+					printf("getla: nlist(%s, %s) ==> 0\n",
+						_PATH_UNIX, LA_AVENRUN);
+			}
+			else
+				kernel_type = getla_64;
+		}
+		else if (errno != 0)
+		{
+			if (tTd(3, 1))
+				printf("getla: nlist64(%s): %s\n",
+					_PATH_UNIX, errstring(errno));
+		}
+		else
+		{
+			if (tTd(3, 20))
+				printf("getla: Kernel is not 64bit\n");
+		}
+	}
+
+	if (kernel_type == getla_none)
+	{
+		if (tTd(3, 1))
+			printf("getla: Failed to determine kernel type\n");
+		return -1;
+	}
+
+	if (kmem < 0)
+	{
+		kmem = open(_PATH_KMEM, 0, 0);
+		if (kmem < 0)
+		{
+			if (tTd(3, 1))
+				printf("getla: open(/dev/kmem): %s\n",
+					errstring(errno));
+			return -1;
+		}
+		(void) fcntl(kmem, F_SETFD, 1);
+	}
+
+	switch (kernel_type)
+	{
+	  case getla_none:
+		return -1;
+
+	  case getla_32:
+		if (lseek(kmem, (off_t) Nl32[X_AVENRUN].n_value, SEEK_SET) == -1 ||
+		    read(kmem, (char *) avenrun, sizeof(avenrun)) < sizeof(avenrun))
+		{
+			if (tTd(3, 1))
+				printf("getla: lseek or read: %s\n",
+					errstring(errno));
+			return -1;
+		}
+		break;
+
+	  case getla_64:
+		/* Using of lseek64 is perhaps overkill ... */
+		if (lseek64(kmem, (off64_t) Nl64[X_AVENRUN].n_value, SEEK_SET) == -1 ||
+		    read(kmem, (char *) avenrun, sizeof(avenrun)) <
+					sizeof(avenrun))
+		{
+			if (tTd(3, 1))
+				printf("getla: lseek64 or read: %s\n",
+					errstring(errno));
+			return -1;
+		}
+		break;
+	}
+	if (tTd(3, 5))
+	{
+		printf("getla: avenrun = %ld",
+			(long int) avenrun[0]);
+		if (tTd(3, 15))
+			printf(", %ld, %ld",
+				(long int)avenrun[1],
+				(long int)avenrun[2]);
+		printf("\n");
+	}
+	if (tTd(3, 1))
+		printf("getla: %d\n",
+			(int) (avenrun[0] + FSCALE/2) >> FSHIFT);
+	return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT);
+}
+#endif
+
+#if LA_TYPE == LA_KSTAT
+
+#include <kstat.h>
+
+int
+getla()
+{
+	static kstat_ctl_t *kc = NULL;
+	static kstat_t *ksp = NULL;
+	kstat_named_t *ksn;
+	int la;
+
+	if (kc == NULL)		/* if not initialized before */
+		kc = kstat_open();
+	if (kc == NULL)
+	{
+		if (tTd(3, 1))
+			printf("getla: kstat_open(): %s\n",
+				errstring(errno));
+		return -1;
+	}
+	if (ksp == NULL)
+		ksp = kstat_lookup(kc, "unix", 0, "system_misc");
+	if (ksp == NULL)
+	{
+		if (tTd(3, 1))
+			printf("getla: kstat_lookup(): %s\n",
+				errstring(errno));
+		return -1;
+	}
+	if (kstat_read(kc, ksp, NULL) < 0)
+	{
+		if (tTd(3, 1))
+			printf("getla: kstat_read(): %s\n",
+				errstring(errno));
+		return -1;
+	}
+	ksn = (kstat_named_t *) kstat_data_lookup(ksp, "avenrun_1min");
+	la = ((double)ksn->value.ul + FSCALE/2) / FSCALE;
+	/* kstat_close(kc); /o do not close for fast access */
+	return la;
+}
+
+#endif /* LA_TYPE == LA_KSTAT */
+
+#if LA_TYPE == LA_DEVSHORT
+
+/*
+**  Read /dev/table/avenrun for the load average.  This should contain
+**  three shorts for the 1, 5, and 15 minute loads.  We only read the
+**  first, since that's all we care about.
+**
+**	Intended for SCO OpenServer 5.
+*/
+
+# ifndef _PATH_AVENRUN
+#  define _PATH_AVENRUN	"/dev/table/avenrun"
+# endif
+
+int
+getla()
+{
+	static int afd = -1;
+	short avenrun;
+	int loadav;
+	int r;
+
+	errno = EBADF;
+
+	if (afd == -1 || lseek(afd, 0L, SEEK_SET) == -1)
+	{
+		if (errno != EBADF)
+			return -1;
+		afd = open(_PATH_AVENRUN, O_RDONLY|O_SYNC);
+		if (afd < 0)
+		{
+			sm_syslog(LOG_ERR, NOQID,
+				"can't open %s: %m",
+				_PATH_AVENRUN);
+			return -1;
+		}
+	}
+
+	r = read(afd, &avenrun, sizeof avenrun);
+
+	if (tTd(3, 5))
+		printf("getla: avenrun = %d\n", avenrun);
+	loadav = (int) (avenrun + FSCALE/2) >> FSHIFT;
+	if (tTd(3, 1))
+		printf("getla: %d\n", loadav);
+	return loadav;
+}
+
+#endif /* LA_TYPE == LA_DEVSHORT */
+
+#if LA_TYPE == LA_ALPHAOSF
+# include <sys/table.h>
+
+int getla()
+{
+	int ave = 0;
+	struct tbl_loadavg tab;
+
+	if (table(TBL_LOADAVG, 0, &tab, 1, sizeof(tab)) == -1)
+	{
+		if (tTd(3, 1))
+			printf("getla: table %s\n", errstring(errno));
+		return (-1);
+	}
+
+	if (tTd(3, 1))
+		printf("getla: scale = %d\n", tab.tl_lscale);
+
+	if (tab.tl_lscale)
+		ave = (tab.tl_avenrun.l[0] + (tab.tl_lscale/2)) / tab.tl_lscale;
+	else
+		ave = (int) (tab.tl_avenrun.d[0] + 0.5);
+
+	if (tTd(3, 1))
+		printf("getla: %d\n", ave);
+
+	return ave;
+}
+
+#endif
+
+#if LA_TYPE == LA_ZERO
+
+int
+getla()
+{
+	if (tTd(3, 1))
+		printf("getla: ZERO\n");
+	return (0);
+}
+
+#endif /* LA_TYPE == LA_ZERO */
+
+/*
+ * Copyright 1989 Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  M.I.T. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Authors:  Many and varied...
+ */
+
+/* Non Apollo stuff removed by Don Lewis 11/15/93 */
+#ifndef lint
+static char  rcsid[] = "@(#)$Id: getloadavg.c,v 1.16 1991/06/21 12:51:15 paul Exp $";
+#endif /* !lint */
+
+#ifdef apollo
+# undef volatile
+#    include <apollo/base.h>
+
+/* ARGSUSED */
+int getloadavg( call_data )
+     caddr_t	call_data;	/* pointer to (double) return value */
+{
+     double *avenrun = (double *) call_data;
+     int i;
+     status_$t      st;
+     long loadav[3];
+     proc1_$get_loadav(loadav, &st);
+     *avenrun = loadav[0] / (double) (1 << 16);
+     return(0);
+}
+#   endif /* apollo */
+/*
+**  SHOULDQUEUE -- should this message be queued or sent?
+**
+**	Compares the message cost to the load average to decide.
+**
+**	Parameters:
+**		pri -- the priority of the message in question.
+**		ctime -- the message creation time.
+**
+**	Returns:
+**		TRUE -- if this message should be queued up for the
+**			time being.
+**		FALSE -- if the load is low enough to send this message.
+**
+**	Side Effects:
+**		none.
+*/
+
+extern int	get_num_procs_online __P((void));
+
+bool
+shouldqueue(pri, ctime)
+	long pri;
+	time_t ctime;
+{
+	bool rval;
+	int queuela = QueueLA * get_num_procs_online();
+
+	if (tTd(3, 30))
+		printf("shouldqueue: CurrentLA=%d, pri=%ld: ", CurrentLA, pri);
+	if (CurrentLA < queuela)
+	{
+		if (tTd(3, 30))
+			printf("FALSE (CurrentLA < QueueLA)\n");
+		return (FALSE);
+	}
+#if 0	/* this code is reported to cause oscillation around RefuseLA */
+	if (CurrentLA >= RefuseLA && QueueLA < RefuseLA)
+	{
+		if (tTd(3, 30))
+			printf("TRUE (CurrentLA >= RefuseLA)\n");
+		return (TRUE);
+	}
+#endif
+	rval = pri > (QueueFactor / (CurrentLA - queuela + 1));
+	if (tTd(3, 30))
+		printf("%s (by calculation)\n", rval ? "TRUE" : "FALSE");
+	return rval;
+}
+/*
+**  REFUSECONNECTIONS -- decide if connections should be refused
+**
+**	Parameters:
+**		port -- port number (for error messages only)
+**
+**	Returns:
+**		TRUE if incoming SMTP connections should be refused
+**			(for now).
+**		FALSE if we should accept new work.
+**
+**	Side Effects:
+**		Sets process title when it is rejecting connections.
+*/
+
+bool
+refuseconnections(port)
+	int port;
+{
+	int refusela = RefuseLA * get_num_procs_online();
+	time_t now;
+	static time_t lastconn = (time_t) 0;
+	static int conncnt = 0;
+	extern bool enoughdiskspace();
+
+#ifdef XLA
+	if (!xla_smtp_ok())
+		return TRUE;
+#endif
+
+	now = curtime();
+	if (now != lastconn)
+	{
+		lastconn = now;
+		conncnt = 0;
+	}
+	else if (conncnt++ > ConnRateThrottle && ConnRateThrottle > 0)
+	{
+		/* sleep to flatten out connection load */
+		setproctitle("deferring connections on port %d: %d per second",
+			port, ConnRateThrottle);
+		if (LogLevel >= 14)
+			sm_syslog(LOG_INFO, NOQID,
+				"deferring connections on port %d: %d per second",
+				port, ConnRateThrottle);
+		sleep(1);
+	}
+
+	CurrentLA = getla();
+	if (CurrentLA >= refusela)
+	{
+		setproctitle("rejecting connections on port %d: load average: %d",
+			port, CurrentLA);
+		if (LogLevel >= 14)
+			sm_syslog(LOG_INFO, NOQID,
+				"rejecting connections on port %d: load average: %d",
+				port, CurrentLA);
+		return TRUE;
+	}
+
+	if (!enoughdiskspace(MinBlocksFree + 1))
+	{
+		setproctitle("rejecting connections on port %d: min free: %d",
+			port, MinBlocksFree);
+		if (LogLevel >= 14)
+			sm_syslog(LOG_INFO, NOQID,
+				"rejecting connections on port %d: min free: %d",
+				port, MinBlocksFree);
+		return TRUE;
+	}
+
+	if (MaxChildren > 0 && CurChildren >= MaxChildren)
+	{
+		extern void proc_list_probe __P((void));
+
+		proc_list_probe();
+		if (CurChildren >= MaxChildren)
+		{
+			setproctitle("rejecting connections on port %d: %d children, max %d",
+				port, CurChildren, MaxChildren);
+			if (LogLevel >= 14)
+				sm_syslog(LOG_INFO, NOQID,
+					"rejecting connections on port %d: %d children, max %d",
+					port, CurChildren, MaxChildren);
+			return TRUE;
+		}
+	}
+
+	return FALSE;
+}
+/*
+**  SETPROCTITLE -- set process title for ps
+**
+**	Parameters:
+**		fmt -- a printf style format string.
+**		a, b, c -- possible parameters to fmt.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Clobbers argv of our main procedure so ps(1) will
+**		display the title.
+*/
+
+#define SPT_NONE	0	/* don't use it at all */
+#define SPT_REUSEARGV	1	/* cover argv with title information */
+#define SPT_BUILTIN	2	/* use libc builtin */
+#define SPT_PSTAT	3	/* use pstat(PSTAT_SETCMD, ...) */
+#define SPT_PSSTRINGS	4	/* use PS_STRINGS->... */
+#define SPT_SYSMIPS	5	/* use sysmips() supported by NEWS-OS 6 */
+#define SPT_SCO		6	/* write kernel u. area */
+#define SPT_CHANGEARGV	7	/* write our own strings into argv[] */
+
+#ifndef SPT_TYPE
+# define SPT_TYPE	SPT_REUSEARGV
+#endif
+
+#if SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN
+
+# if SPT_TYPE == SPT_PSTAT
+#  include <sys/pstat.h>
+# endif
+# if SPT_TYPE == SPT_PSSTRINGS
+#  include <machine/vmparam.h>
+#  include <sys/exec.h>
+#  ifndef PS_STRINGS	/* hmmmm....  apparently not available after all */
+#   undef SPT_TYPE
+#   define SPT_TYPE	SPT_REUSEARGV
+#  else
+#   ifndef NKPDE			/* FreeBSD 2.0 */
+#    define NKPDE 63
+typedef unsigned int	*pt_entry_t;
+#   endif
+#  endif
+# endif
+
+# if SPT_TYPE == SPT_PSSTRINGS || SPT_TYPE == SPT_CHANGEARGV
+#  define SETPROC_STATIC	static
+# else
+#  define SETPROC_STATIC
+# endif
+
+# if SPT_TYPE == SPT_SYSMIPS
+#  include <sys/sysmips.h>
+#  include <sys/sysnews.h>
+# endif
+
+# if SPT_TYPE == SPT_SCO
+#  include <sys/immu.h>
+#  include <sys/dir.h>
+#  include <sys/user.h>
+#  include <sys/fs/s5param.h>
+#  if PSARGSZ > MAXLINE
+#   define SPT_BUFSIZE	PSARGSZ
+#  endif
+# endif
+
+# ifndef SPT_PADCHAR
+#  define SPT_PADCHAR	' '
+# endif
+
+# ifndef SPT_BUFSIZE
+#  define SPT_BUFSIZE	MAXLINE
+# endif
+
+#endif /* SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN */
+
+/*
+**  Pointers for setproctitle.
+**	This allows "ps" listings to give more useful information.
+*/
+
+char		**Argv = NULL;		/* pointer to argument vector */
+char		*LastArgv = NULL;	/* end of argv */
+
+void
+initsetproctitle(argc, argv, envp)
+	int argc;
+	char **argv;
+	char **envp;
+{
+	register int i, envpsize = 0;
+	extern char **environ;
+
+	/*
+	**  Move the environment so setproctitle can use the space at
+	**  the top of memory.
+	*/
+
+	for (i = 0; envp[i] != NULL; i++)
+		envpsize += strlen(envp[i]) + 1;
+	environ = (char **) xalloc(sizeof (char *) * (i + 1));
+	for (i = 0; envp[i] != NULL; i++)
+		environ[i] = newstr(envp[i]);
+	environ[i] = NULL;
+
+	/*
+	**  Save start and extent of argv for setproctitle.
+	*/
+
+	Argv = argv;
+
+	/*
+	**  Find the last environment variable within sendmail's
+	**  process memory area.
+	*/
+	while (i > 0 && (envp[i - 1] < argv[0] ||
+			 envp[i - 1] > (argv[argc - 1] +
+					strlen(argv[argc - 1]) + 1 + envpsize)))
+		i--;
+
+	if (i > 0)
+		LastArgv = envp[i - 1] + strlen(envp[i - 1]);
+	else
+		LastArgv = argv[argc - 1] + strlen(argv[argc - 1]);
+}
+
+#if SPT_TYPE != SPT_BUILTIN
+
+
+/*VARARGS1*/
+void
+# ifdef __STDC__
+setproctitle(const char *fmt, ...)
+# else
+setproctitle(fmt, va_alist)
+	const char *fmt;
+	va_dcl
+# endif
+{
+# if SPT_TYPE != SPT_NONE
+	register char *p;
+	register int i;
+	SETPROC_STATIC char buf[SPT_BUFSIZE];
+	VA_LOCAL_DECL
+#  if SPT_TYPE == SPT_PSTAT
+	union pstun pst;
+#  endif
+#  if SPT_TYPE == SPT_SCO
+	off_t seek_off;
+	static int kmem = -1;
+	static int kmempid = -1;
+	struct user u;
+#  endif
+
+	p = buf;
+
+	/* print sendmail: heading for grep */
+	(void) strcpy(p, "sendmail: ");
+	p += strlen(p);
+
+	/* print the argument string */
+	VA_START(fmt);
+	(void) vsnprintf(p, SPACELEFT(buf, p), fmt, ap);
+	VA_END;
+
+	i = strlen(buf);
+
+#  if SPT_TYPE == SPT_PSTAT
+	pst.pst_command = buf;
+	pstat(PSTAT_SETCMD, pst, i, 0, 0);
+#  endif
+#  if SPT_TYPE == SPT_PSSTRINGS
+	PS_STRINGS->ps_nargvstr = 1;
+	PS_STRINGS->ps_argvstr = buf;
+#  endif
+#  if SPT_TYPE == SPT_SYSMIPS
+	sysmips(SONY_SYSNEWS, NEWS_SETPSARGS, buf);
+#  endif
+#  if SPT_TYPE == SPT_SCO
+	if (kmem < 0 || kmempid != getpid())
+	{
+		if (kmem >= 0)
+			close(kmem);
+		kmem = open(_PATH_KMEM, O_RDWR, 0);
+		if (kmem < 0)
+			return;
+		(void) fcntl(kmem, F_SETFD, 1);
+		kmempid = getpid();
+	}
+	buf[PSARGSZ - 1] = '\0';
+	seek_off = UVUBLK + (off_t) u.u_psargs - (off_t) &u;
+	if (lseek(kmem, (off_t) seek_off, SEEK_SET) == seek_off)
+		(void) write(kmem, buf, PSARGSZ);
+#  endif
+#  if SPT_TYPE == SPT_REUSEARGV
+	if (i > LastArgv - Argv[0] - 2)
+	{
+		i = LastArgv - Argv[0] - 2;
+		buf[i] = '\0';
+	}
+	(void) strcpy(Argv[0], buf);
+	p = &Argv[0][i];
+	while (p < LastArgv)
+		*p++ = SPT_PADCHAR;
+	Argv[1] = NULL;
+#  endif
+#  if SPT_TYPE == SPT_CHANGEARGV
+	Argv[0] = buf;
+	Argv[1] = 0;
+#  endif
+# endif /* SPT_TYPE != SPT_NONE */
+}
+
+#endif /* SPT_TYPE != SPT_BUILTIN */
+/*
+**  WAITFOR -- wait for a particular process id.
+**
+**	Parameters:
+**		pid -- process id to wait for.
+**
+**	Returns:
+**		status of pid.
+**		-1 if pid never shows up.
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+waitfor(pid)
+	pid_t pid;
+{
+#ifdef WAITUNION
+	union wait st;
+#else
+	auto int st;
+#endif
+	pid_t i;
+#if defined(ISC_UNIX) || defined(_SCO_unix_)
+	int savesig;
+#endif
+
+	do
+	{
+		errno = 0;
+#if defined(ISC_UNIX) || defined(_SCO_unix_)
+		savesig = releasesignal(SIGCHLD);
+#endif
+		i = wait(&st);
+#if defined(ISC_UNIX) || defined(_SCO_unix_)
+		if (savesig > 0)
+			blocksignal(SIGCHLD);
+#endif
+		if (i > 0)
+			proc_list_drop(i);
+	} while ((i >= 0 || errno == EINTR) && i != pid);
+	if (i < 0)
+		return -1;
+#ifdef WAITUNION
+	return st.w_status;
+#else
+	return st;
+#endif
+}
+/*
+**  REAPCHILD -- pick up the body of my child, lest it become a zombie
+**
+**	Parameters:
+**		sig -- the signal that got us here (unused).
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Picks up extant zombies.
+*/
+
+SIGFUNC_DECL
+reapchild(sig)
+	int sig;
+{
+	int olderrno = errno;
+	pid_t pid;
+# ifdef HASWAITPID
+	auto int status;
+	int count;
+
+	count = 0;
+	while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
+	{
+		if (count++ > 1000)
+		{
+			if (LogLevel > 0)
+				sm_syslog(LOG_ALERT, NOQID,
+					"reapchild: waitpid loop: pid=%d, status=%x",
+					pid, status);
+			break;
+		}
+		proc_list_drop(pid);
+	}
+# else
+# ifdef WNOHANG
+	union wait status;
+
+	while ((pid = wait3(&status, WNOHANG, (struct rusage *) NULL)) > 0)
+		proc_list_drop(pid);
+# else /* WNOHANG */
+	auto int status;
+
+	/*
+	**  Catch one zombie -- we will be re-invoked (we hope) if there
+	**  are more.  Unreliable signals probably break this, but this
+	**  is the "old system" situation -- waitpid or wait3 are to be
+	**  strongly preferred.
+	*/
+
+	if ((pid = wait(&status)) > 0)
+		proc_list_drop(pid);
+# endif /* WNOHANG */
+# endif
+# ifdef SYS5SIGNALS
+	(void) setsignal(SIGCHLD, reapchild);
+# endif
+	errno = olderrno;
+	return SIGFUNC_RETURN;
+}
+/*
+**  PUTENV -- emulation of putenv() in terms of setenv()
+**
+**	Not needed on Posix-compliant systems.
+**	This doesn't have full Posix semantics, but it's good enough
+**		for sendmail.
+**
+**	Parameter:
+**		env -- the environment to put.
+**
+**	Returns:
+**		none.
+*/
+
+#ifdef NEEDPUTENV
+
+# if NEEDPUTENV == 2		/* no setenv(3) call available */
+
+int
+putenv(str)
+	char *str;
+{
+	char **current;
+	int matchlen, envlen=0;
+	char *tmp;
+	char **newenv;
+	static int first=1;
+	extern char **environ;
+
+	/*
+	 * find out how much of str to match when searching
+	 * for a string to replace.
+	 */
+	if ((tmp = strchr(str, '=')) == NULL || tmp == str)
+		matchlen = strlen(str);
+	else
+		matchlen = (int) (tmp - str);
+	++matchlen;
+
+	/*
+	 * Search for an existing string in the environment and find the
+	 * length of environ.  If found, replace and exit.
+	 */
+	for (current=environ; *current; current++) {
+		++envlen;
+
+		if (strncmp(str, *current, matchlen) == 0) {
+			/* found it, now insert the new version */
+			*current = (char *)str;
+			return(0);
+		}
+	}
+
+	/*
+	 * There wasn't already a slot so add space for a new slot.
+	 * If this is our first time through, use malloc(), else realloc().
+	 */
+	if (first) {
+		newenv = (char **) malloc(sizeof(char *) * (envlen + 2));
+		if (newenv == NULL)
+			return(-1);
+
+		first=0;
+		(void) memcpy(newenv, environ, sizeof(char *) * envlen);
+	} else {
+		newenv = (char **) realloc((char *)environ, sizeof(char *) * (envlen + 2));
+		if (newenv == NULL)
+			return(-1);
+	}
+
+	/* actually add in the new entry */
+	environ = newenv;
+	environ[envlen] = (char *)str;
+	environ[envlen+1] = NULL;
+
+	return(0);
+}
+
+#else			/* implement putenv() in terms of setenv() */
+
+int
+putenv(env)
+	char *env;
+{
+	char *p;
+	int l;
+	char nbuf[100];
+
+	p = strchr(env, '=');
+	if (p == NULL)
+		return 0;
+	l = p - env;
+	if (l > sizeof nbuf - 1)
+		l = sizeof nbuf - 1;
+	bcopy(env, nbuf, l);
+	nbuf[l] = '\0';
+	return setenv(nbuf, ++p, 1);
+}
+
+# endif
+#endif
+/*
+**  UNSETENV -- remove a variable from the environment
+**
+**	Not needed on newer systems.
+**
+**	Parameters:
+**		name -- the string name of the environment variable to be
+**			deleted from the current environment.
+**
+**	Returns:
+**		none.
+**
+**	Globals:
+**		environ -- a pointer to the current environment.
+**
+**	Side Effects:
+**		Modifies environ.
+*/
+
+#ifndef HASUNSETENV
+
+void
+unsetenv(name)
+	char *name;
+{
+	extern char **environ;
+	register char **pp;
+	int len = strlen(name);
+
+	for (pp = environ; *pp != NULL; pp++)
+	{
+		if (strncmp(name, *pp, len) == 0 &&
+		    ((*pp)[len] == '=' || (*pp)[len] == '\0'))
+			break;
+	}
+
+	for (; *pp != NULL; pp++)
+		*pp = pp[1];
+}
+
+#endif
+/*
+**  GETDTABLESIZE -- return number of file descriptors
+**
+**	Only on non-BSD systems
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		size of file descriptor table
+**
+**	Side Effects:
+**		none
+*/
+
+#ifdef SOLARIS
+# include <sys/resource.h>
+#endif
+
+int
+getdtsize()
+{
+#ifdef RLIMIT_NOFILE
+	struct rlimit rl;
+
+	if (getrlimit(RLIMIT_NOFILE, &rl) >= 0)
+		return rl.rlim_cur;
+#endif
+
+# ifdef HASGETDTABLESIZE
+	return getdtablesize();
+# else
+#  ifdef _SC_OPEN_MAX
+	return sysconf(_SC_OPEN_MAX);
+#  else
+	return NOFILE;
+#  endif
+# endif
+}
+/*
+**  UNAME -- get the UUCP name of this system.
+*/
+
+#ifndef HASUNAME
+
+int
+uname(name)
+	struct utsname *name;
+{
+	FILE *file;
+	char *n;
+
+	name->nodename[0] = '\0';
+
+	/* try /etc/whoami -- one line with the node name */
+	if ((file = fopen("/etc/whoami", "r")) != NULL)
+	{
+		(void) fgets(name->nodename, NODE_LENGTH + 1, file);
+		(void) fclose(file);
+		n = strchr(name->nodename, '\n');
+		if (n != NULL)
+			*n = '\0';
+		if (name->nodename[0] != '\0')
+			return (0);
+	}
+
+	/* try /usr/include/whoami.h -- has a #define somewhere */
+	if ((file = fopen("/usr/include/whoami.h", "r")) != NULL)
+	{
+		char buf[MAXLINE];
+
+		while (fgets(buf, MAXLINE, file) != NULL)
+			if (sscanf(buf, "#define sysname \"%*[^\"]\"",
+					NODE_LENGTH, name->nodename) > 0)
+				break;
+		(void) fclose(file);
+		if (name->nodename[0] != '\0')
+			return (0);
+	}
+
+#ifdef TRUST_POPEN
+	/*
+	**  Popen is known to have security holes.
+	*/
+
+	/* try uuname -l to return local name */
+	if ((file = popen("uuname -l", "r")) != NULL)
+	{
+		(void) fgets(name, NODE_LENGTH + 1, file);
+		(void) pclose(file);
+		n = strchr(name, '\n');
+		if (n != NULL)
+			*n = '\0';
+		if (name->nodename[0] != '\0')
+			return (0);
+	}
+#endif
+
+	return (-1);
+}
+#endif /* HASUNAME */
+/*
+**  INITGROUPS -- initialize groups
+**
+**	Stub implementation for System V style systems
+*/
+
+#ifndef HASINITGROUPS
+
+initgroups(name, basegid)
+	char *name;
+	int basegid;
+{
+	return 0;
+}
+
+#endif
+/*
+**  SETSID -- set session id (for non-POSIX systems)
+*/
+
+#ifndef HASSETSID
+
+pid_t
+setsid __P ((void))
+{
+#ifdef TIOCNOTTY
+	int fd;
+
+	fd = open("/dev/tty", O_RDWR, 0);
+	if (fd >= 0)
+	{
+		(void) ioctl(fd, (int) TIOCNOTTY, (char *) 0);
+		(void) close(fd);
+	}
+#endif /* TIOCNOTTY */
+# ifdef SYS5SETPGRP
+	return setpgrp();
+# else
+	return setpgid(0, getpid());
+# endif
+}
+
+#endif
+/*
+**  FSYNC -- dummy fsync
+*/
+
+#ifdef NEEDFSYNC
+
+fsync(fd)
+	int fd;
+{
+# ifdef O_SYNC
+	return fcntl(fd, F_SETFL, O_SYNC);
+# else
+	/* nothing we can do */
+	return 0;
+# endif
+}
+
+#endif
+/*
+**  DGUX_INET_ADDR -- inet_addr for DG/UX
+**
+**	Data General DG/UX version of inet_addr returns a struct in_addr
+**	instead of a long.  This patches things.  Only needed on versions
+**	prior to 5.4.3.
+*/
+
+#ifdef DGUX_5_4_2
+
+#undef inet_addr
+
+long
+dgux_inet_addr(host)
+	char *host;
+{
+	struct in_addr haddr;
+
+	haddr = inet_addr(host);
+	return haddr.s_addr;
+}
+
+#endif
+/*
+**  GETOPT -- for old systems or systems with bogus implementations
+*/
+
+#ifdef NEEDGETOPT
+
+/*
+ * Copyright (c) 1985 Regents of the University of California.
+ * All rights reserved.  The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+
+/*
+** this version hacked to add `atend' flag to allow state machine
+** to reset if invoked by the program to scan args for a 2nd time
+*/
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)getopt.c	4.3 (Berkeley) 3/9/86";
+#endif /* LIBC_SCCS and not lint */
+
+#include <stdio.h>
+
+/*
+ * get option letter from argument vector
+ */
+#ifdef _CONVEX_SOURCE
+extern int	optind, opterr, optopt;
+extern char	*optarg;
+#else
+int	opterr = 1;		/* if error message should be printed */
+int	optind = 1;		/* index into parent argv vector */
+int	optopt = 0;		/* character checked for validity */
+char	*optarg = NULL;		/* argument associated with option */
+#endif
+
+#define BADCH	(int)'?'
+#define EMSG	""
+#define tell(s)	if (opterr) {fputs(*nargv,stderr);fputs(s,stderr); \
+		fputc(optopt,stderr);fputc('\n',stderr);return(BADCH);}
+
+int
+getopt(nargc,nargv,ostr)
+	int		nargc;
+	char *const	*nargv;
+	const char	*ostr;
+{
+	static char	*place = EMSG;	/* option letter processing */
+	static char	atend = 0;
+	register char	*oli = NULL;	/* option letter list index */
+
+	if (atend) {
+		atend = 0;
+		place = EMSG;
+	}
+	if(!*place) {			/* update scanning pointer */
+		if (optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) {
+			atend++;
+			return -1;
+		}
+		if (*place == '-') {	/* found "--" */
+			++optind;
+			atend++;
+			return -1;
+		}
+	}				/* option letter okay? */
+	if ((optopt = (int)*place++) == (int)':' || !(oli = strchr(ostr,optopt))) {
+		if (!*place) ++optind;
+		tell(": illegal option -- ");
+	}
+	if (oli && *++oli != ':') {		/* don't need argument */
+		optarg = NULL;
+		if (!*place) ++optind;
+	}
+	else {				/* need an argument */
+		if (*place) optarg = place;	/* no white space */
+		else if (nargc <= ++optind) {	/* no arg */
+			place = EMSG;
+			tell(": option requires an argument -- ");
+		}
+	 	else optarg = nargv[optind];	/* white space */
+		place = EMSG;
+		++optind;
+	}
+	return(optopt);			/* dump back option letter */
+}
+
+#endif
+/*
+**  VFPRINTF, VSPRINTF -- for old 4.3 BSD systems missing a real version
+*/
+
+#ifdef NEEDVPRINTF
+
+#define MAXARG	16
+
+vfprintf(fp, fmt, ap)
+	FILE *fp;
+	char *fmt;
+	char **ap;
+{
+	char *bp[MAXARG];
+	int i = 0;
+
+	while (*ap && i < MAXARG)
+		bp[i++] = *ap++;
+	fprintf(fp, fmt, bp[0], bp[1], bp[2], bp[3],
+			 bp[4], bp[5], bp[6], bp[7],
+			 bp[8], bp[9], bp[10], bp[11],
+			 bp[12], bp[13], bp[14], bp[15]);
+}
+
+vsprintf(s, fmt, ap)
+	char *s;
+	char *fmt;
+	char **ap;
+{
+	char *bp[MAXARG];
+	int i = 0;
+
+	while (*ap && i < MAXARG)
+		bp[i++] = *ap++;
+	sprintf(s, fmt, bp[0], bp[1], bp[2], bp[3],
+			bp[4], bp[5], bp[6], bp[7],
+			bp[8], bp[9], bp[10], bp[11],
+			bp[12], bp[13], bp[14], bp[15]);
+}
+
+#endif
+/*
+**  SNPRINTF, VSNPRINT -- counted versions of printf
+**
+**	These versions have been grabbed off the net.  They have been
+**	cleaned up to compile properly and support for .precision and
+**	%lx has been added.
+*/
+
+/**************************************************************
+ * Original:
+ * Patrick Powell Tue Apr 11 09:48:21 PDT 1995
+ * A bombproof version of doprnt (sm_dopr) included.
+ * Sigh.  This sort of thing is always nasty do deal with.  Note that
+ * the version here does not include floating point...
+ *
+ * snprintf() is used instead of sprintf() as it does limit checks
+ * for string length.  This covers a nasty loophole.
+ *
+ * The other functions are there to prevent NULL pointers from
+ * causing nast effects.
+ **************************************************************/
+
+/*static char _id[] = "$Id: snprintf.c,v 1.2 1995/10/09 11:19:47 roberto Exp $";*/
+static void	sm_dopr();
+static char	*DoprEnd;
+static int	SnprfOverflow;
+
+#if !HASSNPRINTF
+
+/* VARARGS3 */
+int
+# ifdef __STDC__
+snprintf(char *str, size_t count, const char *fmt, ...)
+# else
+snprintf(str, count, fmt, va_alist)
+	char *str;
+	size_t count;
+	const char *fmt;
+	va_dcl
+#endif
+{
+	int len;
+	VA_LOCAL_DECL
+
+	VA_START(fmt);
+	len = vsnprintf(str, count, fmt, ap);
+	VA_END;
+	return len;
+}
+
+
+# ifndef luna2
+int
+vsnprintf(str, count, fmt, args)
+	char *str;
+	size_t count;
+	const char *fmt;
+	va_list args;
+{
+	str[0] = 0;
+	DoprEnd = str + count - 1;
+	SnprfOverflow = 0;
+	sm_dopr( str, fmt, args );
+	if (count > 0)
+		DoprEnd[0] = 0;
+	if (SnprfOverflow && tTd(57, 2))
+		printf("\nvsnprintf overflow, len = %d, str = %s",
+			count, shortenstring(str, 203));
+	return strlen(str);
+}
+
+# endif /* !luna2 */
+#endif /* !HASSNPRINTF */
+
+/*
+ * sm_dopr(): poor man's version of doprintf
+ */
+
+static void fmtstr __P((char *value, int ljust, int len, int zpad, int maxwidth));
+static void fmtnum __P((long value, int base, int dosign, int ljust, int len, int zpad));
+static void dostr __P(( char * , int ));
+static char *output;
+static void dopr_outch __P(( int c ));
+static int	SyslogErrno;
+
+static void
+sm_dopr( buffer, format, args )
+       char *buffer;
+       const char *format;
+       va_list args;
+{
+       int ch;
+       long value;
+       int longflag  = 0;
+       int pointflag = 0;
+       int maxwidth  = 0;
+       char *strvalue;
+       int ljust;
+       int len;
+       int zpad;
+# if !HASSTRERROR && !defined(ERRLIST_PREDEFINED)
+	extern char *sys_errlist[];
+	extern int sys_nerr;
+# endif
+
+
+       output = buffer;
+       while( (ch = *format++) ){
+	       switch( ch ){
+	       case '%':
+		       ljust = len = zpad = maxwidth = 0;
+		       longflag = pointflag = 0;
+	       nextch:
+		       ch = *format++;
+		       switch( ch ){
+		       case 0:
+			       dostr( "**end of format**" , 0);
+			       return;
+		       case '-': ljust = 1; goto nextch;
+		       case '0': /* set zero padding if len not set */
+			       if(len==0 && !pointflag) zpad = '0';
+		       case '1': case '2': case '3':
+		       case '4': case '5': case '6':
+		       case '7': case '8': case '9':
+			       if (pointflag)
+				 maxwidth = maxwidth*10 + ch - '0';
+			       else
+				 len = len*10 + ch - '0';
+			       goto nextch;
+		       case '*': 
+			       if (pointflag)
+				 maxwidth = va_arg( args, int );
+			       else
+				 len = va_arg( args, int );
+			       goto nextch;
+		       case '.': pointflag = 1; goto nextch;
+		       case 'l': longflag = 1; goto nextch;
+		       case 'u': case 'U':
+			       /*fmtnum(value,base,dosign,ljust,len,zpad) */
+			       if( longflag ){
+				       value = va_arg( args, long );
+			       } else {
+				       value = va_arg( args, int );
+			       }
+			       fmtnum( value, 10,0, ljust, len, zpad ); break;
+		       case 'o': case 'O':
+			       /*fmtnum(value,base,dosign,ljust,len,zpad) */
+			       if( longflag ){
+				       value = va_arg( args, long );
+			       } else {
+				       value = va_arg( args, int );
+			       }
+			       fmtnum( value, 8,0, ljust, len, zpad ); break;
+		       case 'd': case 'D':
+			       if( longflag ){
+				       value = va_arg( args, long );
+			       } else {
+				       value = va_arg( args, int );
+			       }
+			       fmtnum( value, 10,1, ljust, len, zpad ); break;
+		       case 'x':
+			       if( longflag ){
+				       value = va_arg( args, long );
+			       } else {
+				       value = va_arg( args, int );
+			       }
+			       fmtnum( value, 16,0, ljust, len, zpad ); break;
+		       case 'X':
+			       if( longflag ){
+				       value = va_arg( args, long );
+			       } else {
+				       value = va_arg( args, int );
+			       }
+			       fmtnum( value,-16,0, ljust, len, zpad ); break;
+		       case 's':
+			       strvalue = va_arg( args, char *);
+			       if (maxwidth > 0 || !pointflag) {
+				 if (pointflag && len > maxwidth)
+				   len = maxwidth; /* Adjust padding */
+				 fmtstr( strvalue,ljust,len,zpad, maxwidth);
+			       }
+			       break;
+		       case 'c':
+			       ch = va_arg( args, int );
+			       dopr_outch( ch ); break;
+                       case 'm':
+#if HASSTRERROR
+                               dostr(strerror(SyslogErrno), 0);
+#else
+                               if (SyslogErrno < 0 || SyslogErrno > sys_nerr) 
+                               {
+                                   dostr("Error ", 0);
+                                   fmtnum(SyslogErrno, 10, 0, 0, 0, 0);
+                               }
+                               else 
+                                   dostr(sys_errlist[SyslogErrno], 0);
+#endif
+			       break;
+
+		       case '%': dopr_outch( ch ); continue;
+		       default:
+			       dostr(  "???????" , 0);
+		       }
+		       break;
+	       default:
+		       dopr_outch( ch );
+		       break;
+	       }
+       }
+       *output = 0;
+}
+
+static void
+fmtstr(  value, ljust, len, zpad, maxwidth )
+       char *value;
+       int ljust, len, zpad, maxwidth;
+{
+       int padlen, strlen;     /* amount to pad */
+
+       if( value == 0 ){
+	       value = "<NULL>";
+       }
+       for( strlen = 0; value[strlen]; ++ strlen ); /* strlen */
+       if (strlen > maxwidth && maxwidth)
+	 strlen = maxwidth;
+       padlen = len - strlen;
+       if( padlen < 0 ) padlen = 0;
+       if( ljust ) padlen = -padlen;
+       while( padlen > 0 ) {
+	       dopr_outch( ' ' );
+	       --padlen;
+       }
+       dostr( value, maxwidth );
+       while( padlen < 0 ) {
+	       dopr_outch( ' ' );
+	       ++padlen;
+       }
+}
+
+static void
+fmtnum(  value, base, dosign, ljust, len, zpad )
+       long value;
+       int base, dosign, ljust, len, zpad;
+{
+       int signvalue = 0;
+       unsigned long uvalue;
+       char convert[20];
+       int place = 0;
+       int padlen = 0; /* amount to pad */
+       int caps = 0;
+
+       /* DEBUGP(("value 0x%x, base %d, dosign %d, ljust %d, len %d, zpad %d\n",
+	       value, base, dosign, ljust, len, zpad )); */
+       uvalue = value;
+       if( dosign ){
+	       if( value < 0 ) {
+		       signvalue = '-';
+		       uvalue = -value;
+	       }
+       }
+       if( base < 0 ){
+	       caps = 1;
+	       base = -base;
+       }
+       do{
+	       convert[place++] =
+		       (caps? "0123456789ABCDEF":"0123456789abcdef")
+			[uvalue % (unsigned)base  ];
+	       uvalue = (uvalue / (unsigned)base );
+       }while(uvalue);
+       convert[place] = 0;
+       padlen = len - place;
+       if( padlen < 0 ) padlen = 0;
+       if( ljust ) padlen = -padlen;
+       /* DEBUGP(( "str '%s', place %d, sign %c, padlen %d\n",
+	       convert,place,signvalue,padlen)); */
+       if( zpad && padlen > 0 ){
+	       if( signvalue ){
+		       dopr_outch( signvalue );
+		       --padlen;
+		       signvalue = 0;
+	       }
+	       while( padlen > 0 ){
+		       dopr_outch( zpad );
+		       --padlen;
+	       }
+       }
+       while( padlen > 0 ) {
+	       dopr_outch( ' ' );
+	       --padlen;
+       }
+       if( signvalue ) dopr_outch( signvalue );
+       while( place > 0 ) dopr_outch( convert[--place] );
+       while( padlen < 0 ){
+	       dopr_outch( ' ' );
+	       ++padlen;
+       }
+}
+
+static void
+dostr( str , cut)
+     char *str;
+     int cut;
+{
+  if (cut) {
+    while(*str && cut-- > 0) dopr_outch(*str++);
+  } else {
+    while(*str) dopr_outch(*str++);
+  }
+}
+
+static void
+dopr_outch( c )
+       int c;
+{
+#if 0
+       if( iscntrl(c) && c != '\n' && c != '\t' ){
+	       c = '@' + (c & 0x1F);
+	       if( DoprEnd == 0 || output < DoprEnd )
+		       *output++ = '^';
+       }
+#endif
+       if( DoprEnd == 0 || output < DoprEnd )
+	       *output++ = c;
+       else
+		SnprfOverflow++;
+}
+/*
+**  USERSHELLOK -- tell if a user's shell is ok for unrestricted use
+**
+**	Parameters:
+**		user -- the name of the user we are checking.
+**		shell -- the user's shell from /etc/passwd
+**
+**	Returns:
+**		TRUE -- if it is ok to use this for unrestricted access.
+**		FALSE -- if the shell is restricted.
+*/
+
+#if !HASGETUSERSHELL
+
+# ifndef _PATH_SHELLS
+#  define _PATH_SHELLS	"/etc/shells"
+# endif
+
+# if defined(_AIX3) || defined(_AIX4)
+#  include <userconf.h>
+#  include <usersec.h>
+# endif
+
+char	*DefaultUserShells[] =
+{
+	"/bin/sh",		/* standard shell */
+	"/usr/bin/sh",
+	"/bin/csh",		/* C shell */
+	"/usr/bin/csh",
+#ifdef __hpux
+# ifdef V4FS
+	"/usr/bin/rsh",		/* restricted Bourne shell */
+	"/usr/bin/ksh",		/* Korn shell */
+	"/usr/bin/rksh",	/* restricted Korn shell */
+	"/usr/bin/pam",
+	"/usr/bin/keysh",	/* key shell (extended Korn shell) */
+	"/usr/bin/posix/sh",
+# else
+	"/bin/rsh",		/* restricted Bourne shell */
+	"/bin/ksh",		/* Korn shell */
+	"/bin/rksh",		/* restricted Korn shell */
+	"/bin/pam",
+	"/usr/bin/keysh",	/* key shell (extended Korn shell) */
+	"/bin/posix/sh",
+# endif
+#endif
+#if defined(_AIX3) || defined(_AIX4)
+	"/bin/ksh",		/* Korn shell */
+	"/usr/bin/ksh",
+	"/bin/tsh",		/* trusted shell */
+	"/usr/bin/tsh",
+	"/bin/bsh",		/* Bourne shell */
+	"/usr/bin/bsh",
+#endif
+#ifdef __svr4__
+	"/bin/ksh",		/* Korn shell */
+	"/usr/bin/ksh",
+#endif
+	NULL
+};
+
+#endif
+
+#define WILDCARD_SHELL	"/SENDMAIL/ANY/SHELL/"
+
+bool
+usershellok(user, shell)
+	char *user;
+	char *shell;
+{
+#if HASGETUSERSHELL
+	register char *p;
+	extern char *getusershell();
+
+	if (shell == NULL || shell[0] == '\0' || wordinclass(user, 't') ||
+	    ConfigLevel <= 1)
+		return TRUE;
+
+	setusershell();
+	while ((p = getusershell()) != NULL)
+		if (strcmp(p, shell) == 0 || strcmp(p, WILDCARD_SHELL) == 0)
+			break;
+	endusershell();
+	return p != NULL;
+#else
+# if USEGETCONFATTR
+	auto char *v;
+# endif
+	register FILE *shellf;
+	char buf[MAXLINE];
+
+	if (shell == NULL || shell[0] == '\0' || wordinclass(user, 't'))
+		return TRUE;
+
+# if USEGETCONFATTR
+	/*
+	**  Naturally IBM has a "better" idea.....
+	**
+	**	What a crock.  This interface isn't documented, it is
+	**	considered part of the security library (-ls), and it
+	**	only works if you are running as root (since the list
+	**	of valid shells is obviously a source of great concern).
+	**	I recommend that you do NOT define USEGETCONFATTR,
+	**	especially since you are going to have to set up an
+	**	/etc/shells anyhow to handle the cases where getconfattr
+	**	fails.
+	*/
+
+	if (getconfattr(SC_SYS_LOGIN, SC_SHELLS, &v, SEC_LIST) == 0 && v != NULL)
+	{
+		while (*v != '\0')
+		{
+			if (strcmp(v, shell) == 0 || strcmp(v, WILDCARD_SHELL) == 0)
+				return TRUE;
+			v += strlen(v) + 1;
+		}
+		return FALSE;
+	}
+# endif
+
+	shellf = fopen(_PATH_SHELLS, "r");
+	if (shellf == NULL)
+	{
+		/* no /etc/shells; see if it is one of the std shells */
+		char **d;
+
+		for (d = DefaultUserShells; *d != NULL; d++)
+		{
+			if (strcmp(shell, *d) == 0)
+				return TRUE;
+		}
+		return FALSE;
+	}
+
+	while (fgets(buf, sizeof buf, shellf) != NULL)
+	{
+		register char *p, *q;
+
+		p = buf;
+		while (*p != '\0' && *p != '#' && *p != '/')
+			p++;
+		if (*p == '#' || *p == '\0')
+			continue;
+		q = p;
+		while (*p != '\0' && *p != '#' && !isspace(*p))
+			p++;
+		*p = '\0';
+		if (strcmp(shell, q) == 0 || strcmp(WILDCARD_SHELL, q) == 0)
+		{
+			fclose(shellf);
+			return TRUE;
+		}
+	}
+	fclose(shellf);
+	return FALSE;
+#endif
+}
+/*
+**  FREEDISKSPACE -- see how much free space is on the queue filesystem
+**
+**	Only implemented if you have statfs.
+**
+**	Parameters:
+**		dir -- the directory in question.
+**		bsize -- a variable into which the filesystem
+**			block size is stored.
+**
+**	Returns:
+**		The number of bytes free on the queue filesystem.
+**		-1 if the statfs call fails.
+**
+**	Side effects:
+**		Puts the filesystem block size into bsize.
+*/
+
+/* statfs types */
+#define SFS_NONE	0	/* no statfs implementation */
+#define SFS_USTAT	1	/* use ustat */
+#define SFS_4ARGS	2	/* use four-argument statfs call */
+#define SFS_VFS		3	/* use <sys/vfs.h> implementation */
+#define SFS_MOUNT	4	/* use <sys/mount.h> implementation */
+#define SFS_STATFS	5	/* use <sys/statfs.h> implementation */
+#define SFS_STATVFS	6	/* use <sys/statvfs.h> implementation */
+
+#ifndef SFS_TYPE
+# define SFS_TYPE	SFS_NONE
+#endif
+
+#if SFS_TYPE == SFS_USTAT
+# include <ustat.h>
+#endif
+#if SFS_TYPE == SFS_4ARGS || SFS_TYPE == SFS_STATFS
+# include <sys/statfs.h>
+#endif
+#if SFS_TYPE == SFS_VFS
+# include <sys/vfs.h>
+#endif
+#if SFS_TYPE == SFS_MOUNT
+# include <sys/mount.h>
+#endif
+#if SFS_TYPE == SFS_STATVFS
+# include <sys/statvfs.h>
+#endif
+
+long
+freediskspace(dir, bsize)
+	char *dir;
+	long *bsize;
+{
+#if SFS_TYPE != SFS_NONE
+# if SFS_TYPE == SFS_USTAT
+	struct ustat fs;
+	struct stat statbuf;
+#  define FSBLOCKSIZE	DEV_BSIZE
+#  define SFS_BAVAIL	f_tfree
+# else
+#  if defined(ultrix)
+	struct fs_data fs;
+#   define SFS_BAVAIL	fd_bfreen
+#   define FSBLOCKSIZE	1024L
+#  else
+#   if SFS_TYPE == SFS_STATVFS
+	struct statvfs fs;
+#    define FSBLOCKSIZE	fs.f_frsize
+#   else
+	struct statfs fs;
+#    define FSBLOCKSIZE	fs.f_bsize
+#   endif
+#  endif
+# endif
+# ifndef SFS_BAVAIL
+#  define SFS_BAVAIL f_bavail
+# endif
+
+# if SFS_TYPE == SFS_USTAT
+	if (stat(dir, &statbuf) == 0 && ustat(statbuf.st_dev, &fs) == 0)
+# else
+#  if SFS_TYPE == SFS_4ARGS
+	if (statfs(dir, &fs, sizeof fs, 0) == 0)
+#  else
+#   if SFS_TYPE == SFS_STATVFS
+	if (statvfs(dir, &fs) == 0)
+#   else
+#    if defined(ultrix)
+	if (statfs(dir, &fs) > 0)
+#    else
+	if (statfs(dir, &fs) == 0)
+#    endif
+#   endif
+#  endif
+# endif
+	{
+		if (bsize != NULL)
+			*bsize = FSBLOCKSIZE;
+		if (fs.SFS_BAVAIL <= 0)
+			return 0;
+		else
+			return fs.SFS_BAVAIL;
+	}
+#endif
+	return (-1);
+}
+/*
+**  ENOUGHDISKSPACE -- is there enough free space on the queue fs?
+**
+**	Only implemented if you have statfs.
+**
+**	Parameters:
+**		msize -- the size to check against.  If zero, we don't yet
+**		know how big the message will be, so just check for
+**		a "reasonable" amount.
+**
+**	Returns:
+**		TRUE if there is enough space.
+**		FALSE otherwise.
+*/
+
+bool
+enoughdiskspace(msize)
+	long msize;
+{
+	long bfree, bsize;
+
+	if (MinBlocksFree <= 0 && msize <= 0)
+	{
+		if (tTd(4, 80))
+			printf("enoughdiskspace: no threshold\n");
+		return TRUE;
+	}
+
+	if ((bfree = freediskspace(QueueDir, &bsize)) >= 0)
+	{
+		if (tTd(4, 80))
+			printf("enoughdiskspace: bavail=%ld, need=%ld\n",
+				bfree, msize);
+
+		/* convert msize to block count */
+		msize = msize / bsize + 1;
+		if (MinBlocksFree >= 0)
+			msize += MinBlocksFree;
+
+		if (bfree < msize)
+		{
+			if (LogLevel > 0)
+				sm_syslog(LOG_ALERT, CurEnv->e_id,
+					"low on space (have %ld, %s needs %ld in %s)",
+					bfree,
+					CurHostName == NULL ? "SMTP-DAEMON" : CurHostName,
+					msize, QueueDir);
+			return FALSE;
+		}
+	}
+	else if (tTd(4, 80))
+		printf("enoughdiskspace failure: min=%ld, need=%ld: %s\n",
+			MinBlocksFree, msize, errstring(errno));
+	return TRUE;
+}
+/*
+**  TRANSIENTERROR -- tell if an error code indicates a transient failure
+**
+**	This looks at an errno value and tells if this is likely to
+**	go away if retried later.
+**
+**	Parameters:
+**		err -- the errno code to classify.
+**
+**	Returns:
+**		TRUE if this is probably transient.
+**		FALSE otherwise.
+*/
+
+bool
+transienterror(err)
+	int err;
+{
+	switch (err)
+	{
+	  case EIO:			/* I/O error */
+	  case ENXIO:			/* Device not configured */
+	  case EAGAIN:			/* Resource temporarily unavailable */
+	  case ENOMEM:			/* Cannot allocate memory */
+	  case ENODEV:			/* Operation not supported by device */
+	  case ENFILE:			/* Too many open files in system */
+	  case EMFILE:			/* Too many open files */
+	  case ENOSPC:			/* No space left on device */
+#ifdef ETIMEDOUT
+	  case ETIMEDOUT:		/* Connection timed out */
+#endif
+#ifdef ESTALE
+	  case ESTALE:			/* Stale NFS file handle */
+#endif
+#ifdef ENETDOWN
+	  case ENETDOWN:		/* Network is down */
+#endif
+#ifdef ENETUNREACH
+	  case ENETUNREACH:		/* Network is unreachable */
+#endif
+#ifdef ENETRESET
+	  case ENETRESET:		/* Network dropped connection on reset */
+#endif
+#ifdef ECONNABORTED
+	  case ECONNABORTED:		/* Software caused connection abort */
+#endif
+#ifdef ECONNRESET
+	  case ECONNRESET:		/* Connection reset by peer */
+#endif
+#ifdef ENOBUFS
+	  case ENOBUFS:			/* No buffer space available */
+#endif
+#ifdef ESHUTDOWN
+	  case ESHUTDOWN:		/* Can't send after socket shutdown */
+#endif
+#ifdef ECONNREFUSED
+	  case ECONNREFUSED:		/* Connection refused */
+#endif
+#ifdef EHOSTDOWN
+	  case EHOSTDOWN:		/* Host is down */
+#endif
+#ifdef EHOSTUNREACH
+	  case EHOSTUNREACH:		/* No route to host */
+#endif
+#ifdef EDQUOT
+	  case EDQUOT:			/* Disc quota exceeded */
+#endif
+#ifdef EPROCLIM
+	  case EPROCLIM:		/* Too many processes */
+#endif
+#ifdef EUSERS
+	  case EUSERS:			/* Too many users */
+#endif
+#ifdef EDEADLK
+	  case EDEADLK:			/* Resource deadlock avoided */
+#endif
+#ifdef EISCONN
+	  case EISCONN:			/* Socket already connected */
+#endif
+#ifdef EINPROGRESS
+	  case EINPROGRESS:		/* Operation now in progress */
+#endif
+#ifdef EALREADY
+	  case EALREADY:		/* Operation already in progress */
+#endif
+#ifdef EADDRINUSE
+	  case EADDRINUSE:		/* Address already in use */
+#endif
+#ifdef EADDRNOTAVAIL
+	  case EADDRNOTAVAIL:		/* Can't assign requested address */
+#endif
+#ifdef ETXTBSY
+	  case ETXTBSY:			/* (Apollo) file locked */
+#endif
+#if defined(ENOSR) && (!defined(ENOBUFS) || (ENOBUFS != ENOSR))
+	  case ENOSR:			/* Out of streams resources */
+#endif
+	  case E_SM_OPENTIMEOUT:	/* PSEUDO: open timed out */
+		return TRUE;
+	}
+
+	/* nope, must be permanent */
+	return FALSE;
+}
+/*
+**  LOCKFILE -- lock a file using flock or (shudder) fcntl locking
+**
+**	Parameters:
+**		fd -- the file descriptor of the file.
+**		filename -- the file name (for error messages).
+**		ext -- the filename extension.
+**		type -- type of the lock.  Bits can be:
+**			LOCK_EX -- exclusive lock.
+**			LOCK_NB -- non-blocking.
+**
+**	Returns:
+**		TRUE if the lock was acquired.
+**		FALSE otherwise.
+*/
+
+bool
+lockfile(fd, filename, ext, type)
+	int fd;
+	char *filename;
+	char *ext;
+	int type;
+{
+	int i;
+# if !HASFLOCK
+	int action;
+	struct flock lfd;
+
+	if (ext == NULL)
+		ext = "";
+
+	bzero(&lfd, sizeof lfd);
+	if (bitset(LOCK_UN, type))
+		lfd.l_type = F_UNLCK;
+	else if (bitset(LOCK_EX, type))
+		lfd.l_type = F_WRLCK;
+	else
+		lfd.l_type = F_RDLCK;
+
+	if (bitset(LOCK_NB, type))
+		action = F_SETLK;
+	else
+		action = F_SETLKW;
+
+	if (tTd(55, 60))
+		printf("lockfile(%s%s, action=%d, type=%d): ",
+			filename, ext, action, lfd.l_type);
+
+	while ((i = fcntl(fd, action, &lfd)) < 0 && errno == EINTR)
+		continue;
+	if (i >= 0)
+	{
+		if (tTd(55, 60))
+			printf("SUCCESS\n");
+		return TRUE;
+	}
+
+	if (tTd(55, 60))
+		printf("(%s) ", errstring(errno));
+
+	/*
+	**  On SunOS, if you are testing using -oQ/tmp/mqueue or
+	**  -oA/tmp/aliases or anything like that, and /tmp is mounted
+	**  as type "tmp" (that is, served from swap space), the
+	**  previous fcntl will fail with "Invalid argument" errors.
+	**  Since this is fairly common during testing, we will assume
+	**  that this indicates that the lock is successfully grabbed.
+	*/
+
+	if (errno == EINVAL)
+	{
+		if (tTd(55, 60))
+			printf("SUCCESS\n");
+		return TRUE;
+	}
+
+	if (!bitset(LOCK_NB, type) || (errno != EACCES && errno != EAGAIN))
+	{
+		int omode = -1;
+#  ifdef F_GETFL
+		int oerrno = errno;
+
+		(void) fcntl(fd, F_GETFL, &omode);
+		errno = oerrno;
+#  endif
+		syserr("cannot lockf(%s%s, fd=%d, type=%o, omode=%o, euid=%d)",
+			filename, ext, fd, type, omode, geteuid());
+		dumpfd(fd, TRUE, TRUE);
+	}
+# else
+	if (ext == NULL)
+		ext = "";
+
+	if (tTd(55, 60))
+		printf("lockfile(%s%s, type=%o): ", filename, ext, type);
+
+	while ((i = flock(fd, type)) < 0 && errno == EINTR)
+		continue;
+	if (i >= 0)
+	{
+		if (tTd(55, 60))
+			printf("SUCCESS\n");
+		return TRUE;
+	}
+
+	if (tTd(55, 60))
+		printf("(%s) ", errstring(errno));
+
+	if (!bitset(LOCK_NB, type) || errno != EWOULDBLOCK)
+	{
+		int omode = -1;
+#  ifdef F_GETFL
+		int oerrno = errno;
+
+		(void) fcntl(fd, F_GETFL, &omode);
+		errno = oerrno;
+#  endif
+		syserr("cannot flock(%s%s, fd=%d, type=%o, omode=%o, euid=%d)",
+			filename, ext, fd, type, omode, geteuid());
+		dumpfd(fd, TRUE, TRUE);
+	}
+# endif
+	if (tTd(55, 60))
+		printf("FAIL\n");
+	return FALSE;
+}
+/*
+**  CHOWNSAFE -- tell if chown is "safe" (executable only by root)
+**
+**	Unfortunately, given that we can't predict other systems on which
+**	a remote mounted (NFS) filesystem will be mounted, the answer is
+**	almost always that this is unsafe.
+**
+**	Note also that many operating systems have non-compliant
+**	implementations of the _POSIX_CHOWN_RESTRICTED variable and the
+**	fpathconf() routine.  According to IEEE 1003.1-1990, if
+**	_POSIX_CHOWN_RESTRICTED is defined and not equal to -1, then
+**	no non-root process can give away the file.  However, vendors
+**	don't take NFS into account, so a comfortable value of
+**	_POSIX_CHOWN_RESTRICTED tells us nothing.
+**
+**	Also, some systems (e.g., IRIX 6.2) return 1 from fpathconf()
+**	even on files where chown is not restricted.  Many systems get
+**	this wrong on NFS-based filesystems (that is, they say that chown
+**	is restricted [safe] on NFS filesystems where it may not be, since
+**	other systems can access the same filesystem and do file giveaway;
+**	only the NFS server knows for sure!)  Hence, it is important to
+**	get the value of SAFENFSPATHCONF correct -- it should be defined
+**	_only_ after testing (see test/t_pathconf.c) a system on an unsafe
+**	NFS-based filesystem to ensure that you can get meaningful results.
+**	If in doubt, assume unsafe!
+**
+**	You may also need to tweak IS_SAFE_CHOWN -- it should be a
+**	condition indicating whether the return from pathconf indicates
+**	that chown is safe (typically either > 0 or >= 0 -- there isn't
+**	even any agreement about whether a zero return means that a file
+**	is or is not safe).  It defaults to "> 0".
+**
+**	If the parent directory is safe (writable only by owner back
+**	to the root) then we can relax slightly and trust fpathconf
+**	in more circumstances.  This is really a crock -- if this is an
+**	NFS mounted filesystem then we really know nothing about the
+**	underlying implementation.  However, most systems pessimize and
+**	return an error (EINVAL or EOPNOTSUPP) on NFS filesystems, which
+**	we interpret as unsafe, as we should.  Thus, this heuristic gets
+**	us into a possible problem only on systems that have a broken
+**	pathconf implementation and which are also poorly configured
+**	(have :include: files in group- or world-writable directories).
+**
+**	Parameters:
+**		fd -- the file descriptor to check.
+**		safedir -- set if the parent directory is safe.
+**
+**	Returns:
+**		TRUE -- if the chown(2) operation is "safe" -- that is,
+**			only root can chown the file to an arbitrary user.
+**		FALSE -- if an arbitrary user can give away a file.
+*/
+
+#ifndef IS_SAFE_CHOWN
+# define IS_SAFE_CHOWN	> 0
+#endif
+
+bool
+chownsafe(fd, safedir)
+	int fd;
+	bool safedir;
+{
+#if (!defined(_POSIX_CHOWN_RESTRICTED) || _POSIX_CHOWN_RESTRICTED != -1) && \
+    (defined(_PC_CHOWN_RESTRICTED) || defined(_GNU_TYPES_H))
+	int rval;
+
+	/* give the system administrator a chance to override */
+	if (ChownAlwaysSafe)
+		return TRUE;
+
+	/*
+	**  Some systems (e.g., SunOS) seem to have the call and the
+	**  #define _PC_CHOWN_RESTRICTED, but don't actually implement
+	**  the call.  This heuristic checks for that.
+	*/
+
+	errno = 0;
+	rval = fpathconf(fd, _PC_CHOWN_RESTRICTED);
+# if SAFENFSPATHCONF
+	return errno == 0 && rval IS_SAFE_CHOWN;
+# else
+	return safedir && errno == 0 && rval IS_SAFE_CHOWN;
+# endif
+#else
+	return ChownAlwaysSafe;
+#endif
+}
+/*
+**  RESETLIMITS -- reset system controlled resource limits
+**
+**	This is to avoid denial-of-service attacks
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		none
+*/
+
+#if HASSETRLIMIT
+# ifdef RLIMIT_NEEDS_SYS_TIME_H
+#  include <sys/time.h>
+# endif
+# include <sys/resource.h>
+#endif
+#ifndef FD_SETSIZE
+# define FD_SETSIZE	256
+#endif
+
+void
+resetlimits()
+{
+#if HASSETRLIMIT
+	struct rlimit lim;
+
+	lim.rlim_cur = lim.rlim_max = RLIM_INFINITY;
+	(void) setrlimit(RLIMIT_CPU, &lim);
+	(void) setrlimit(RLIMIT_FSIZE, &lim);
+# ifdef RLIMIT_NOFILE
+	lim.rlim_cur = lim.rlim_max = FD_SETSIZE;
+	(void) setrlimit(RLIMIT_NOFILE, &lim);
+# endif
+#else
+# if HASULIMIT
+	(void) ulimit(2, 0x3fffff);
+	(void) ulimit(4, FD_SETSIZE);
+# endif
+#endif
+	errno = 0;
+}
+/*
+**  GETCFNAME -- return the name of the .cf file.
+**
+**	Some systems (e.g., NeXT) determine this dynamically.
+*/
+
+char *
+getcfname()
+{
+
+	if (ConfFile != NULL)
+		return ConfFile;
+#if NETINFO
+	{
+		extern char *ni_propval();
+		char *cflocation;
+
+		cflocation = ni_propval("/locations", NULL, "sendmail",
+					"sendmail.cf", '\0');
+		if (cflocation != NULL)
+			return cflocation;
+	}
+#endif
+
+	return _PATH_SENDMAILCF;
+}
+/*
+**  SETVENDOR -- process vendor code from V configuration line
+**
+**	Parameters:
+**		vendor -- string representation of vendor.
+**
+**	Returns:
+**		TRUE -- if ok.
+**		FALSE -- if vendor code could not be processed.
+**
+**	Side Effects:
+**		It is reasonable to set mode flags here to tweak
+**		processing in other parts of the code if necessary.
+**		For example, if you are a vendor that uses $%y to
+**		indicate YP lookups, you could enable that here.
+*/
+
+bool
+setvendor(vendor)
+	char *vendor;
+{
+	if (strcasecmp(vendor, "Berkeley") == 0)
+	{
+		VendorCode = VENDOR_BERKELEY;
+		return TRUE;
+	}
+
+	/* add vendor extensions here */
+
+#ifdef SUN_EXTENSIONS
+	if (strcasecmp(vendor, "Sun") == 0)
+	{
+		VendorCode = VENDOR_SUN;
+		return TRUE;
+	}
+#endif
+
+	return FALSE;
+}
+/*
+**  VENDOR_PRE_DEFAULTS, VENDOR_POST_DEFAULTS -- set vendor-specific defaults
+**
+**	Vendor_pre_defaults is called before reading the configuration
+**	file; vendor_post_defaults is called immediately after.
+**
+**	Parameters:
+**		e -- the global environment to initialize.
+**
+**	Returns:
+**		none.
+*/
+
+#if SHARE_V1
+int	DefShareUid;	/* default share uid to run as -- unused??? */
+#endif
+
+void
+vendor_pre_defaults(e)
+	ENVELOPE *e;
+{
+#if SHARE_V1
+	/* OTHERUID is defined in shares.h, do not be alarmed */
+	DefShareUid = OTHERUID;
+#endif
+#if defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES)
+	sun_pre_defaults(e);
+#endif
+#ifdef apollo
+	/* stupid domain/os can't even open /etc/sendmail.cf without this */
+	setuserenv("ISP", NULL);
+	setuserenv("SYSTYPE", NULL);
+#endif
+}
+
+
+void
+vendor_post_defaults(e)
+	ENVELOPE *e;
+{
+#if defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES)
+	sun_post_defaults(e);
+#endif
+}
+/*
+**  VENDOR_DAEMON_SETUP -- special vendor setup needed for daemon mode
+*/
+
+void
+vendor_daemon_setup(e)
+	ENVELOPE *e;
+{
+#if SECUREWARE
+	if (getluid() != -1)
+	{
+		usrerr("Daemon cannot have LUID");
+		exit(EX_USAGE);
+	}
+#endif /* SECUREWARE */
+}
+/*
+**  VENDOR_SET_UID -- do setup for setting a user id
+**
+**	This is called when we are still root.
+**
+**	Parameters:
+**		uid -- the uid we are about to become.
+**
+**	Returns:
+**		none.
+*/
+
+void
+vendor_set_uid(uid)
+	UID_T uid;
+{
+	/* 
+	**  We need to setup the share groups (lnodes)
+	**  and and auditing inforation (luid's)
+	**  before we loose our ``root''ness.
+	*/
+#if SHARE_V1
+	if (setupshares(uid, syserr) != 0)
+		syserr("Unable to set up shares");
+#endif
+#if SECUREWARE
+	(void) setup_secure(uid);
+#endif
+}
+/*
+**  VALIDATE_CONNECTION -- check connection for rationality
+**
+**	If the connection is rejected, this routine should log an
+**	appropriate message -- but should never issue any SMTP protocol.
+**
+**	Parameters:
+**		sap -- a pointer to a SOCKADDR naming the peer.
+**		hostname -- the name corresponding to sap.
+**		e -- the current envelope.
+**
+**	Returns:
+**		TRUE -- if the connection should be accepted.
+**		FALSE -- if it should be rejected.
+*/
+
+#if TCPWRAPPERS
+# include <tcpd.h>
+
+/* tcpwrappers does no logging, but you still have to declare these -- ugh */
+int	allow_severity	= LOG_INFO;
+int	deny_severity	= LOG_NOTICE;
+#endif
+
+#if DAEMON
+bool
+validate_connection(sap, hostname, e)
+	SOCKADDR *sap;
+	char *hostname;
+	ENVELOPE *e;
+{
+	if (tTd(48, 3))
+		printf("validate_connection(%s, %s)\n",
+			hostname, anynet_ntoa(sap));
+
+	if (rscheck("check_relay", hostname, anynet_ntoa(sap), e) != EX_OK)
+	{
+		if (tTd(48, 4))
+			printf("  ... validate_connection: BAD (rscheck)\n");
+		return FALSE;
+	}
+
+#if TCPWRAPPERS
+	if (!hosts_ctl("sendmail", hostname, anynet_ntoa(sap), STRING_UNKNOWN))
+	{
+		if (tTd(48, 4))
+			printf("  ... validate_connection: BAD (tcpwrappers)\n");
+		if (LogLevel >= 4)
+			sm_syslog(LOG_NOTICE, NOQID,
+				"tcpwrappers (%s, %s) rejection",
+				hostname, anynet_ntoa(sap));
+		return FALSE;
+	}
+#endif
+	if (tTd(48, 4))
+		printf("  ... validate_connection: OK\n");
+	return TRUE;
+}
+
+#endif
+/*
+**  STRTOL -- convert string to long integer
+**
+**	For systems that don't have it in the C library.
+**
+**	This is taken verbatim from the 4.4-Lite C library.
+*/
+
+#ifdef NEEDSTRTOL
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)strtol.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+
+#include <limits.h>
+
+/*
+ * Convert a string to a long integer.
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+
+long
+strtol(nptr, endptr, base)
+	const char *nptr;
+	char **endptr;
+	register int base;
+{
+	register const char *s = nptr;
+	register unsigned long acc;
+	register int c;
+	register unsigned long cutoff;
+	register int neg = 0, any, cutlim;
+
+	/*
+	 * Skip white space and pick up leading +/- sign if any.
+	 * If base is 0, allow 0x for hex and 0 for octal, else
+	 * assume decimal; if base is already 16, allow 0x.
+	 */
+	do {
+		c = *s++;
+	} while (isspace(c));
+	if (c == '-') {
+		neg = 1;
+		c = *s++;
+	} else if (c == '+')
+		c = *s++;
+	if ((base == 0 || base == 16) &&
+	    c == '0' && (*s == 'x' || *s == 'X')) {
+		c = s[1];
+		s += 2;
+		base = 16;
+	}
+	if (base == 0)
+		base = c == '0' ? 8 : 10;
+
+	/*
+	 * Compute the cutoff value between legal numbers and illegal
+	 * numbers.  That is the largest legal value, divided by the
+	 * base.  An input number that is greater than this value, if
+	 * followed by a legal input character, is too big.  One that
+	 * is equal to this value may be valid or not; the limit
+	 * between valid and invalid numbers is then based on the last
+	 * digit.  For instance, if the range for longs is
+	 * [-2147483648..2147483647] and the input base is 10,
+	 * cutoff will be set to 214748364 and cutlim to either
+	 * 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
+	 * a value > 214748364, or equal but the next digit is > 7 (or 8),
+	 * the number is too big, and we will return a range error.
+	 *
+	 * Set any if any `digits' consumed; make it negative to indicate
+	 * overflow.
+	 */
+	cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX;
+	cutlim = cutoff % (unsigned long)base;
+	cutoff /= (unsigned long)base;
+	for (acc = 0, any = 0;; c = *s++) {
+		if (isdigit(c))
+			c -= '0';
+		else if (isalpha(c))
+			c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+		else
+			break;
+		if (c >= base)
+			break;
+		if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim)
+			any = -1;
+		else {
+			any = 1;
+			acc *= base;
+			acc += c;
+		}
+	}
+	if (any < 0) {
+		acc = neg ? LONG_MIN : LONG_MAX;
+		errno = ERANGE;
+	} else if (neg)
+		acc = -acc;
+	if (endptr != 0)
+		*endptr = (char *)(any ? s - 1 : nptr);
+	return (acc);
+}
+
+#endif
+/*
+**  STRSTR -- find first substring in string
+**
+**	Parameters:
+**		big -- the big (full) string.
+**		little -- the little (sub) string.
+**
+**	Returns:
+**		A pointer to the first instance of little in big.
+**		big if little is the null string.
+**		NULL if little is not contained in big.
+*/
+
+#ifdef NEEDSTRSTR
+
+char *
+strstr(big, little)
+	char *big;
+	char *little;
+{
+	register char *p = big;
+	int l;
+
+	if (*little == '\0')
+		return big;
+	l = strlen(little);
+
+	while ((p = strchr(p, *little)) != NULL)
+	{
+		if (strncmp(p, little, l) == 0)
+			return p;
+		p++;
+	}
+	return NULL;
+}
+
+#endif
+/*
+**  SM_GETHOSTBY{NAME,ADDR} -- compatibility routines for gethostbyXXX
+**
+**	Some operating systems have wierd problems with the gethostbyXXX
+**	routines.  For example, Solaris versions at least through 2.3
+**	don't properly deliver a canonical h_name field.  This tries to
+**	work around these problems.
+*/
+
+struct hostent *
+sm_gethostbyname(name)
+	char *name;
+{
+	struct hostent *h;
+#if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4))
+# if SOLARIS == 20300 || SOLARIS == 203
+	static struct hostent hp;
+	static char buf[1000];
+	extern struct hostent *_switch_gethostbyname_r();
+
+	if (tTd(61, 10))
+		printf("_switch_gethostbyname_r(%s)... ", name);
+	h = _switch_gethostbyname_r(name, &hp, buf, sizeof(buf), &h_errno);
+# else
+	extern struct hostent *__switch_gethostbyname();
+
+	if (tTd(61, 10))
+		printf("__switch_gethostbyname(%s)... ", name);
+	h = __switch_gethostbyname(name);
+# endif
+#else
+	int nmaps;
+	char *maptype[MAXMAPSTACK];
+	short mapreturn[MAXMAPACTIONS];
+	char hbuf[MAXNAME];
+
+	if (tTd(61, 10))
+		printf("gethostbyname(%s)... ", name);
+	h = gethostbyname(name);
+	if (h == NULL)
+	{
+		if (tTd(61, 10))
+			printf("failure\n");
+
+		nmaps = switch_map_find("hosts", maptype, mapreturn);
+		while (--nmaps >= 0)
+			if (strcmp(maptype[nmaps], "nis") == 0 ||
+			    strcmp(maptype[nmaps], "files") == 0)
+				break;
+		if (nmaps >= 0)
+		{
+			/* try short name */
+			if (strlen(name) > (SIZE_T) sizeof hbuf - 1)
+				return NULL;
+			strcpy(hbuf, name);
+			shorten_hostname(hbuf);
+
+			/* if it hasn't been shortened, there's no point */
+			if (strcmp(hbuf, name) != 0)
+			{
+				if (tTd(61, 10))
+					printf("gethostbyname(%s)... ", hbuf);
+				h = gethostbyname(hbuf);
+			}
+		}
+	}
+#endif
+	if (tTd(61, 10))
+	{
+		if (h == NULL)
+			printf("failure\n");
+		else
+			printf("%s\n", h->h_name);
+	}
+	return h;
+}
+
+struct hostent *
+sm_gethostbyaddr(addr, len, type)
+	char *addr;
+	int len;
+	int type;
+{
+#if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204)
+# if SOLARIS == 20300 || SOLARIS == 203
+	static struct hostent hp;
+	static char buf[1000];
+	extern struct hostent *_switch_gethostbyaddr_r();
+
+	return _switch_gethostbyaddr_r(addr, len, type, &hp, buf, sizeof(buf), &h_errno);
+# else
+	extern struct hostent *__switch_gethostbyaddr();
+
+	return __switch_gethostbyaddr(addr, len, type);
+# endif
+#else
+	return gethostbyaddr(addr, len, type);
+#endif
+}
+/*
+**  SM_GETPW{NAM,UID} -- wrapper for getpwnam and getpwuid
+*/
+
+struct passwd *
+sm_getpwnam(user)
+	char *user;
+{
+#ifdef _AIX4
+	extern struct passwd *_getpwnam_shadow(const char *, const int);
+
+	return _getpwnam_shadow(user, 0);
+#else
+	return getpwnam(user);
+#endif
+}
+
+struct passwd *
+sm_getpwuid(uid)
+	UID_T uid;
+{
+#if defined(_AIX4) && 0
+	extern struct passwd *_getpwuid_shadow(const int, const int);
+
+	return _getpwuid_shadow(uid,0);
+#else
+	return getpwuid(uid);
+#endif
+}
+/*
+**  SECUREWARE_SETUP_SECURE -- Convex SecureWare setup
+**
+**	Set up the trusted computing environment for C2 level security
+**	under SecureWare.
+**
+**	Parameters:
+**		uid -- uid of the user to initialize in the TCB
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		Initialized the user in the trusted computing base
+*/
+
+#if SECUREWARE
+
+# include <sys/security.h>
+# include <prot.h>
+
+void
+secureware_setup_secure(uid)
+	UID_T uid;
+{
+	int rc;
+
+	if (getluid() != -1)
+		return;
+	
+	if ((rc = set_secure_info(uid)) != SSI_GOOD_RETURN)
+	{
+		switch (rc)
+		{
+		  case SSI_NO_PRPW_ENTRY:
+			syserr("No protected passwd entry, uid = %d", uid);
+			break;
+
+		  case SSI_LOCKED:
+			syserr("Account has been disabled, uid = %d", uid);
+			break;
+
+		  case SSI_RETIRED:
+			syserr("Account has been retired, uid = %d", uid);
+			break;
+
+		  case SSI_BAD_SET_LUID:
+			syserr("Could not set LUID, uid = %d", uid);
+			break;
+
+		  case SSI_BAD_SET_PRIVS:
+			syserr("Could not set kernel privs, uid = %d", uid);
+
+		  default:
+			syserr("Unknown return code (%d) from set_secure_info(%d)", 
+				rc, uid);
+			break;
+		}
+		exit(EX_NOPERM);
+	}
+}
+#endif /* SECUREWARE */
+/*
+**  LOAD_IF_NAMES -- load interface-specific names into $=w
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Loads $=w with the names of all the interfaces.
+*/
+
+#if defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN
+struct rtentry;
+struct mbuf;
+# include <arpa/inet.h>
+# ifndef SUNOS403
+#  include <sys/time.h>
+# endif
+# include <net/if.h>
+#endif
+
+void
+load_if_names()
+{
+#if defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN
+	int s;
+	int i;
+	struct ifconf ifc;
+	int numifs;
+
+	s = socket(AF_INET, SOCK_DGRAM, 0);
+	if (s == -1)
+		return;
+
+	/* get the list of known IP address from the kernel */
+# if defined(SIOCGIFNUM) && !SIOCGIFNUM_IS_BROKEN
+	if (ioctl(s, SIOCGIFNUM, (char *) &numifs) < 0)
+	{
+		/* can't get number of interfaces -- fall back */
+		if (tTd(0, 4))
+			printf("SIOCGIFNUM failed: %s\n", errstring(errno));
+		numifs = -1;
+	}
+	else if (tTd(0, 42))
+		printf("system has %d interfaces\n", numifs);
+	if (numifs < 0)
+# endif
+		numifs = 512;
+
+	if (numifs <= 0)
+	{
+		close(s);
+		return;
+	}
+	ifc.ifc_len = numifs * sizeof (struct ifreq);
+	ifc.ifc_buf = xalloc(ifc.ifc_len);
+	if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0)
+	{
+		if (tTd(0, 4))
+			printf("SIOGIFCONF failed: %s\n", errstring(errno));
+		close(s);
+		return;
+	}
+
+	/* scan the list of IP address */
+	if (tTd(0, 40))
+		printf("scanning for interface specific names, ifc_len=%d\n",
+			ifc.ifc_len);
+
+	for (i = 0; i < ifc.ifc_len; )
+	{
+		struct ifreq *ifr = (struct ifreq *) &ifc.ifc_buf[i];
+		struct sockaddr *sa = &ifr->ifr_addr;
+		struct in_addr ia;
+		struct hostent *hp;
+#ifdef SIOCGIFFLAGS
+		struct ifreq ifrf;
+#endif
+		char ip_addr[256];
+		extern char *inet_ntoa();
+
+#ifdef BSD4_4_SOCKADDR
+		if (sa->sa_len > sizeof ifr->ifr_addr)
+			i += sizeof ifr->ifr_name + sa->sa_len;
+		else
+#endif
+			i += sizeof *ifr;
+
+		if (tTd(0, 20))
+			printf("%s\n", anynet_ntoa((SOCKADDR *) sa));
+
+		if (ifr->ifr_addr.sa_family != AF_INET)
+			continue;
+
+#ifdef SIOCGIFFLAGS
+		bzero(&ifrf, sizeof(struct ifreq));
+		strncpy(ifrf.ifr_name, ifr->ifr_name, sizeof(ifrf.ifr_name));
+		ioctl(s, SIOCGIFFLAGS, (char *) &ifrf);
+		if (tTd(0, 41))
+			printf("\tflags: %x\n", ifrf.ifr_flags);
+# define IFRFREF ifrf
+#else
+# define IFRFREF (*ifr)
+#endif
+		if (!bitset(IFF_UP, IFRFREF.ifr_flags))
+			continue;
+
+		/* extract IP address from the list*/
+		ia = (((struct sockaddr_in *) sa)->sin_addr);
+		if (ia.s_addr == INADDR_ANY || ia.s_addr == INADDR_NONE)
+		{
+			message("WARNING: interface %s is UP with %s address",
+				ifr->ifr_name, inet_ntoa(ia));
+			continue;
+		}
+
+		/* save IP address in text from */
+		(void) snprintf(ip_addr, sizeof ip_addr, "[%.*s]",
+			sizeof ip_addr - 3,
+			inet_ntoa(ia));
+		if (!wordinclass(ip_addr, 'w'))
+		{
+			setclass('w', ip_addr);
+			if (tTd(0, 4))
+				printf("\ta.k.a.: %s\n", ip_addr);
+		}
+
+		/* skip "loopback" interface "lo" */
+		if (bitset(IFF_LOOPBACK, IFRFREF.ifr_flags))
+			continue;
+
+		/* lookup name with IP address */
+		hp = sm_gethostbyaddr((char *) &ia, sizeof(ia), AF_INET);
+		if (hp == NULL)
+		{
+			if (LogLevel > 3)
+				sm_syslog(LOG_WARNING, NOQID,
+					"gethostbyaddr(%.100s) failed: %d\n",
+					inet_ntoa(ia),
+#if NAMED_BIND
+					h_errno);
+#else
+					-1);
+#endif
+			continue;
+		}
+
+		/* save its cname */
+		if (!wordinclass((char *) hp->h_name, 'w'))
+		{
+			setclass('w', (char *) hp->h_name);
+			if (tTd(0, 4))
+				printf("\ta.k.a.: %s\n", hp->h_name);
+		}
+
+		/* save all it aliases name */
+		while (*hp->h_aliases)
+		{
+			if (!wordinclass(*hp->h_aliases, 'w'))
+			{
+				setclass('w', *hp->h_aliases);
+				if (tTd(0, 4))
+				printf("\ta.k.a.: %s\n", *hp->h_aliases);
+			}
+			hp->h_aliases++;
+		}
+	}
+	free(ifc.ifc_buf);
+	close(s);
+# undef IFRFREF
+#endif
+}
+/*
+**  GET_NUM_PROCS_ONLINE -- return the number of processors currently online
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		The number of processors online.
+*/
+
+int
+get_num_procs_online()
+{
+	int nproc = 0;
+
+#if _FFR_SCALE_LA_BY_NUM_PROCS
+#ifdef _SC_NPROCESSORS_ONLN
+	nproc = (int) sysconf(_SC_NPROCESSORS_ONLN);
+#endif
+#endif
+	if (nproc <= 0)
+		nproc = 1;
+	return nproc;
+}
+/*
+**  SM_SYSLOG -- syslog wrapper to keep messages under SYSLOG_BUFSIZE
+**
+**	Parameters:
+**		level -- syslog level
+**		id -- envelope ID or NULL (NOQUEUE)
+**		fmt -- format string
+**		arg... -- arguments as implied by fmt.
+**
+**	Returns:
+**		none
+*/
+
+/* VARARGS3 */
+void
+# ifdef __STDC__
+sm_syslog(int level, const char *id, const char *fmt, ...)
+# else
+sm_syslog(level, id, fmt, va_alist)
+	int level;
+	const char *id;
+	const char *fmt;
+	va_dcl
+#endif
+{
+	static char *buf = NULL;
+	static size_t bufsize = MAXLINE;
+	char *begin, *end;
+	int seq = 1;
+	int idlen;
+	extern int SnprfOverflow;
+	VA_LOCAL_DECL
+	
+	SyslogErrno = errno;
+	if (id == NULL)
+	{
+		id = "NOQUEUE";
+		idlen = 9;
+	}
+	else if (strcmp(id, NOQID) == 0)
+	{
+		id = "";
+		idlen = 0;
+	}
+	else
+		idlen = strlen(id + 2);
+bufalloc:
+	if (buf == NULL)
+		buf = (char *) xalloc(sizeof(char) * bufsize);
+
+	/* do a virtual vsnprintf into buf */
+	VA_START(fmt);
+	buf[0] = 0;
+	DoprEnd = buf + bufsize - 1;
+	SnprfOverflow = 0;
+	sm_dopr(buf, fmt, ap);
+	*DoprEnd = '\0';
+	VA_END;
+	/* end of virtual vsnprintf */
+
+	if (SnprfOverflow)
+	{
+		/* String too small, redo with correct size */
+		bufsize += SnprfOverflow + 1;
+		free(buf);
+		buf = NULL;
+		goto bufalloc;
+	}
+	if ((strlen(buf) + idlen + 1) < SYSLOG_BUFSIZE)
+	{
+#if LOG
+		if (*id == '\0')
+			syslog(level, "%s", buf);
+		else
+			syslog(level, "%s: %s", id, buf);
+#else
+		/*XXX should do something more sensible */
+		if (*id == '\0')
+			fprintf(stderr, "%s\n", buf);
+		else
+			fprintf(stderr, "%s: %s\n", id, buf);
+#endif
+		return;
+	}
+
+	begin = buf;
+	while (*begin != '\0' &&
+	       (strlen(begin) + idlen + 5) > SYSLOG_BUFSIZE) 
+	{
+		char save;
+	
+		if (seq == 999)
+		{
+			/* Too many messages */
+			break;
+		}
+		end = begin + SYSLOG_BUFSIZE - idlen - 12;
+		while (end > begin)
+		{
+			/* Break on comma or space */
+			if (*end == ',' || *end == ' ')
+			{
+				end++;	  /* Include separator */
+				break;
+			}
+			end--;
+		}
+		/* No separator, break midstring... */
+		if (end == begin)
+			end = begin + SYSLOG_BUFSIZE - idlen - 12;
+		save = *end;
+		*end = 0;
+#if LOG
+		syslog(level, "%s[%d]: %s ...", id, seq++, begin);
+#else
+		fprintf(stderr, "%s[%d]: %s ...\n", id, seq++, begin);
+#endif
+		*end = save;
+		begin = end;
+	}
+	if (seq == 999)
+#if LOG
+		syslog(level, "%s[%d]: log terminated, too many parts", id, seq);
+#else
+		fprintf(stderr, "%s[%d]: log terminated, too many parts\n", id, seq);
+#endif
+	else if (*begin != '\0')
+#if LOG
+		syslog(level, "%s[%d]: %s", id, seq, begin);
+#else
+		fprintf(stderr, "%s[%d]: %s\n", id, seq, begin);
+#endif
+}
+/*
+**  HARD_SYSLOG -- call syslog repeatedly until it works
+**
+**	Needed on HP-UX, which apparently doesn't guarantee that
+**	syslog succeeds during interrupt handlers.
+*/
+
+#ifdef __hpux
+
+# define MAXSYSLOGTRIES	100
+# undef syslog
+# ifdef V4FS
+#  define XCNST	const
+#  define CAST	(const char *)
+# else
+#  define XCNST
+#  define CAST
+# endif
+
+void
+# ifdef __STDC__
+hard_syslog(int pri, XCNST char *msg, ...)
+# else
+hard_syslog(pri, msg, va_alist)
+	int pri;
+	XCNST char *msg;
+	va_dcl
+# endif
+{
+	int i;
+	char buf[SYSLOG_BUFSIZE];
+	VA_LOCAL_DECL;
+
+	VA_START(msg);
+	vsnprintf(buf, sizeof buf, msg, ap);
+	VA_END;
+
+	for (i = MAXSYSLOGTRIES; --i >= 0 && syslog(pri, CAST "%s", buf) < 0; )
+		continue;
+}
+
+# undef CAST
+#endif
+/*
+**  LOCAL_HOSTNAME_LENGTH
+**
+**	This is required to get sendmail to compile against BIND 4.9.x
+**	on Ultrix.
+*/
+
+#if defined(ultrix) && NAMED_BIND
+
+# include <resolv.h>
+# if __RES >= 19931104 && __RES < 19950621
+
+int
+local_hostname_length(hostname)
+	char *hostname;
+{
+	int len_host, len_domain;
+
+	if (!*_res.defdname)
+		res_init();
+	len_host = strlen(hostname);
+	len_domain = strlen(_res.defdname);
+	if (len_host > len_domain &&
+	    (strcasecmp(hostname + len_host - len_domain,_res.defdname) == 0) &&
+	    hostname[len_host - len_domain - 1] == '.')
+		return len_host - len_domain - 1;
+	else
+		return 0;
+}
+
+# endif
+#endif
+/*
+**  Compile-Time options
+*/
+
+char	*CompileOptions[] =
+{
+#if HESIOD
+	"HESIOD",
+#endif
+#if HES_GETMAILHOST
+	"HES_GETMAILHOST",
+#endif
+#if LDAPMAP
+	"LDAPMAP",
+#endif
+#if LOG
+	"LOG",
+#endif
+#if MATCHGECOS
+	"MATCHGECOS",
+#endif
+#if MIME7TO8
+	"MIME7TO8",
+#endif
+#if MIME8TO7
+	"MIME8TO7",
+#endif
+#if NAMED_BIND
+	"NAMED_BIND",
+#endif
+#if NDBM
+	"NDBM",
+#endif
+#if NETINET
+	"NETINET",
+#endif
+#if NETINFO
+	"NETINFO",
+#endif
+#if NETISO
+	"NETISO",
+#endif
+#if NETNS
+	"NETNS",
+#endif
+#if NETUNIX
+	"NETUNIX",
+#endif
+#if NETX25
+	"NETX25",
+#endif
+#if NEWDB
+	"NEWDB",
+#endif
+#if NIS
+	"NIS",
+#endif
+#if NISPLUS
+	"NISPLUS",
+#endif
+#if QUEUE
+	"QUEUE",
+#endif
+#if SCANF
+	"SCANF",
+#endif
+#if SMTP
+	"SMTP",
+#endif
+#if SMTPDEBUG
+	"SMTPDEBUG",
+#endif
+#if SUID_ROOT_FILES_OK
+	"SUID_ROOT_FILES_OK",
+#endif
+#if TCPWRAPPERS
+	"TCPWRAPPERS",
+#endif
+#if USERDB
+	"USERDB",
+#endif
+#if XDEBUG
+	"XDEBUG",
+#endif
+#if XLA
+	"XLA",
+#endif
+	NULL
+};
+
+
+/*
+**  OS compile options.
+*/
+
+char	*OsCompileOptions[] =
+{
+#if BOGUS_O_EXCL
+	"BOGUS_O_EXCL",
+#endif
+#if HASFCHMOD
+	"HASFCHMOD",
+#endif
+#if HASFLOCK
+	"HASFLOCK",
+#endif
+#if HASGETDTABLESIZE
+	"HASGETDTABLESIZE",
+#endif
+#if HASGETUSERSHELL
+	"HASGETUSERSHELL",
+#endif
+#if HASINITGROUPS
+	"HASINITGROUPS",
+#endif
+#if HASLSTAT
+	"HASLSTAT",
+#endif
+#if HASSETREUID
+	"HASSETREUID",
+#endif
+#if HASSETRLIMIT
+	"HASSETRLIMIT",
+#endif
+#if HASSETSID
+	"HASSETSID",
+#endif
+#if HASSETUSERCONTEXT
+	"HASSETUSERCONTEXT",
+#endif
+#if HASSETVBUF
+	"HASSETVBUF",
+#endif
+#if HASSNPRINTF
+	"HASSNPRINTF",
+#endif
+#if HAS_ST_GEN
+	"HAS_ST_GEN",
+#endif
+#if HASSTRERROR
+	"HASSTRERROR",
+#endif
+#if HASULIMIT
+	"HASULIMIT",
+#endif
+#if HASUNAME
+	"HASUNAME",
+#endif
+#if HASUNSETENV
+	"HASUNSETENV",
+#endif
+#if HASWAITPID
+	"HASWAITPID",
+#endif
+#if IDENTPROTO
+	"IDENTPROTO",
+#endif
+#if IP_SRCROUTE
+	"IP_SRCROUTE",
+#endif
+#if O_EXLOCK && HASFLOCK && !BOGUS_O_EXCL
+	"LOCK_ON_OPEN",
+#endif
+#if NEEDFSYNC
+	"NEEDFSYNC",
+#endif
+#if NOFTRUNCATE
+	"NOFTRUNCATE",
+#endif
+#if RLIMIT_NEEDS_SYS_TIME_H
+	"RLIMIT_NEEDS_SYS_TIME_H",
+#endif
+#if SAFENFSPATHCONF
+	"SAFENFSPATHCONF",
+#endif
+#if SECUREWARE
+	"SECUREWARE",
+#endif
+#if SHARE_V1
+	"SHARE_V1",
+#endif
+#if SIOCGIFCONF_IS_BROKEN
+	"SIOCGIFCONF_IS_BROKEN",
+#endif
+#if SIOCGIFNUM_IS_BROKEN
+	"SIOCGIFNUM_IS_BROKEN",
+#endif
+#if SYS5SETPGRP
+	"SYS5SETPGRP",
+#endif
+#if SYSTEM5
+	"SYSTEM5",
+#endif
+#if USE_SA_SIGACTION
+	"USE_SA_SIGACTION",
+#endif
+#if USE_SIGLONGJMP
+	"USE_SIGLONGJMP",
+#endif
+#if USESETEUID
+	"USESETEUID",
+#endif
+	NULL
+};
diff --git a/src/conf.h b/src/conf.h
new file mode 100644
index 0000000..de37c14
--- /dev/null
+++ b/src/conf.h
@@ -0,0 +1,2361 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)conf.h	8.335 (Berkeley) 10/24/97
+ */
+
+/*
+**  CONF.H -- All user-configurable parameters for sendmail
+**
+**	Send updates to sendmail@Sendmail.ORG so they will be
+**	included in the next release.
+*/
+
+#ifdef __GNUC__
+struct rusage;	/* forward declaration to get gcc to shut up in wait.h */
+#endif
+
+# include <sys/param.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <sys/file.h>
+# include <sys/wait.h>
+# include <limits.h>
+# include <fcntl.h>
+# include <signal.h>
+# include <netdb.h>
+# include <pwd.h>
+
+/**********************************************************************
+**  Table sizes, etc....
+**	There shouldn't be much need to change these....
+**********************************************************************/
+
+# define MAXLINE	2048		/* max line length */
+# define MAXNAME	256		/* max length of a name */
+# define MAXPV		40		/* max # of parms to mailers */
+# define MAXATOM	200		/* max atoms per address */
+# define MAXMAILERS	25		/* maximum mailers known to system */
+# define MAXRWSETS	200		/* max # of sets of rewriting rules */
+# define MAXPRIORITIES	25		/* max values for Precedence: field */
+# define MAXMXHOSTS	100		/* max # of MX records for one host */
+# define SMTPLINELIM	990		/* maximum SMTP line length */
+# define MAXKEY		128		/* maximum size of a database key */
+# define MEMCHUNKSIZE	1024		/* chunk size for memory allocation */
+# define MAXUSERENVIRON	100		/* max envars saved, must be >= 3 */
+# define MAXALIASDB	12		/* max # of alias databases */
+# define MAXMAPSTACK	12		/* max # of stacked or sequenced maps */
+# define MAXTOCLASS	8		/* max # of message timeout classes */
+# define MAXMIMEARGS	20		/* max args in Content-Type: */
+# define MAXMIMENESTING	20		/* max MIME multipart nesting */
+# define QUEUESEGSIZE	1000		/* increment for queue size */
+# define MAXQFNAME	20		/* max qf file name length */
+
+/**********************************************************************
+**  Compilation options.
+**	#define these to 1 if they are available;
+**	#define them to 0 otherwise.
+**  All can be overridden from Makefile.
+**********************************************************************/
+
+# ifndef NETINET
+#  define NETINET	1	/* include internet support */
+# endif
+
+# ifndef NETISO
+#  define NETISO	0	/* do not include ISO socket support */
+# endif
+
+# ifndef NAMED_BIND
+#  define NAMED_BIND	1	/* use Berkeley Internet Domain Server */
+# endif
+
+# ifndef XDEBUG
+#  define XDEBUG	1	/* enable extended debugging */
+# endif
+
+# ifndef MATCHGECOS
+#  define MATCHGECOS	1	/* match user names from gecos field */
+# endif
+
+# ifndef DSN
+#  define DSN		1	/* include delivery status notification code */
+# endif
+
+# if !defined(USERDB) && (defined(NEWDB) || defined(HESIOD))
+#  define USERDB	1	/* look in user database */
+# endif
+
+# ifndef MIME8TO7
+#  define MIME8TO7	1	/* 8->7 bit MIME conversions */
+# endif
+
+# ifndef MIME7TO8
+#  define MIME7TO8	1	/* 7->8 bit MIME conversions */
+# endif
+
+/**********************************************************************
+**  "Hard" compilation options.
+**	#define these if they are available; comment them out otherwise.
+**  These cannot be overridden from the Makefile, and should really not
+**  be turned off unless absolutely necessary.
+**********************************************************************/
+
+# define LOG		1	/* enable logging -- don't turn off */
+
+/**********************************************************************
+**  End of site-specific configuration.
+**********************************************************************/
+/*
+**  General "standard C" defines.
+**
+**	These may be undone later, to cope with systems that claim to
+**	be Standard C but aren't.  Gcc is the biggest offender -- it
+**	doesn't realize that the library is part of the language.
+**
+**	Life would be much easier if we could get rid of this sort
+**	of bozo problems.
+*/
+
+#ifdef __STDC__
+# define HASSETVBUF	1	/* we have setvbuf(3) in libc */
+#endif
+
+/*
+**  Assume you have standard calls; can be #undefed below if necessary.
+*/
+
+# define HASLSTAT	1	/* has lstat(2) call */
+/**********************************************************************
+**  Operating system configuration.
+**
+**	Unless you are porting to a new OS, you shouldn't have to
+**	change these.
+**********************************************************************/
+
+/*
+**  HP-UX -- tested for 8.07, 9.00, and 9.01.
+**
+**	If V4FS is defined, compile for HP-UX 10.0.
+*/
+
+#ifdef __hpux
+		/* common definitions for HP-UX 9.x and 10.x */
+# undef m_flags		/* conflict between db.h & sys/sysmacros.h on HP 300 */
+# define SYSTEM5	1	/* include all the System V defines */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define USESETEUID	1	/* has useable seteuid(2) call */
+# define BOGUS_O_EXCL	1	/* exclusive open follows symlinks */
+# define seteuid(e)	setresuid(-1, e, -1)
+# define IP_SRCROUTE	1	/* can check IP source routing */
+# define LA_TYPE	LA_HPUX
+# define SPT_TYPE	SPT_PSTAT
+# define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+# define GIDSET_T	gid_t
+# ifndef HASGETUSERSHELL
+#  define HASGETUSERSHELL 0	/* getusershell(3) causes core dumps */
+# endif
+# define syslog		hard_syslog
+# define SAFENFSPATHCONF 1	/* pathconf(2) pessimizes on NFS filesystems */
+
+# ifdef V4FS
+		/* HP-UX 10.x */
+#  define _PATH_UNIX		"/stand/vmunix"
+#  ifndef _PATH_VENDOR_CF
+#   define _PATH_VENDOR_CF	"/etc/mail/sendmail.cf"
+#  endif
+#  ifndef _PATH_SENDMAILPID
+#   define _PATH_SENDMAILPID	"/etc/mail/sendmail.pid"
+#  endif
+#  ifndef IDENTPROTO
+#   define IDENTPROTO	1	/* TCP/IP implementation fixed in 10.0 */
+#  endif
+
+# else
+		/* HP-UX 9.x */
+#  define _PATH_UNIX		"/hp-ux"
+#  ifndef _PATH_VENDOR_CF
+#   define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+#  endif
+#  ifndef IDENTPROTO
+#   define IDENTPROTO	0	/* TCP/IP implementation is broken */
+#  endif
+#  ifdef __STDC__
+extern void	hard_syslog(int, char *, ...);
+#  endif
+#  define FDSET_CAST	(int *)	/* cast for fd_set parameters to select */
+# endif
+
+#endif
+
+
+/*
+**  IBM AIX 4.x
+*/
+
+#ifdef _AIX4
+# define _AIX3		1	/* pull in AIX3 stuff */
+# define USESETEUID	1	/* seteuid(2) works */
+# define TZ_TYPE	TZ_NAME	/* use tzname[] vector */
+# define SOCKADDR_LEN_T	size_t	/* e.g., arg#3 to accept, getsockname */
+# define SOCKOPT_LEN_T	size_t	/* arg#5 to getsockopt */
+# if _AIX4 >= 40200
+#  define HASSETREUID	1	/* setreuid(2) works as of AIX 4.2 */
+# endif
+#endif
+
+
+/*
+**  IBM AIX 3.x -- actually tested for 3.2.3
+*/
+
+#ifdef _AIX3
+# include <paths.h>
+# include <sys/machine.h>	/* to get byte order */
+# include <sys/select.h>
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define IP_SRCROUTE	0	/* Something is broken with getsockopt() */
+# define GIDSET_T	gid_t
+# define SFS_TYPE	SFS_STATFS	/* use <sys/statfs.h> statfs() impl */
+# define SPT_PADCHAR	'\0'	/* pad process title with nulls */
+# define LA_TYPE	LA_INT
+# define FSHIFT		16
+# define LA_AVENRUN	"avenrun"
+#endif
+
+
+/*
+**  IBM AIX 2.2.1 -- actually tested for osupdate level 2706+1773
+**
+**	From Mark Whetzel <markw@wg.waii.com>.
+*/
+
+#ifdef AIX			/* AIX/RT compiler pre-defines this */
+# include <paths.h>
+# include <sys/time.h>		/* AIX/RT resource.h does NOT include this */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define HASFCHMOD	0	/* does not have fchmod(2) syscall */
+# define HASSETREUID	1	/* use setreuid(2) -lbsd system call */
+# define HASSETVBUF	1	/* use setvbuf(2) system call */
+# define HASSETRLIMIT	0	/* does not have setrlimit call */
+# define HASFLOCK	0	/* does not have flock call - use fcntl */
+# define HASULIMIT	1	/* use ulimit instead of setrlimit call */
+# define NEEDGETOPT	1	/* Do we need theirs or ours */
+# define SYS5SETPGRP	1	/* don't have setpgid on AIX/RT */
+# define IP_SRCROUTE	0	/* Something is broken with getsockopt() */
+# define BSD4_3		1	/* NOT bsd 4.4 or posix signals */
+# define GIDSET_T	int
+# define SFS_TYPE	SFS_STATFS	/* use <sys/statfs.h> statfs() impl */
+# define SPT_PADCHAR	'\0'		/* pad process title with nulls */
+# define LA_TYPE	LA_SUBR		/* use our ported loadavgd daemon */
+# define TZ_TYPE	TZ_TZNAME	/* use tzname[] vector */
+# define ARBPTR_T	int *
+# define void		int
+typedef int		pid_t;
+/* RTisms for BSD compatibility, specified in the Makefile
+  define BSD		1
+  define BSD_INCLUDES		1
+  define BSD_REMAP_SIGNAL_TO_SIGVEC
+    RTisms needed above */
+/* make this sendmail in a completely different place */
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/local/newmail/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/usr/local/newmail/sendmail.pid"
+# endif
+#endif
+
+
+/*
+**  Silicon Graphics IRIX
+**
+**	Compiles on 4.0.1.
+**
+**	Use IRIX64 instead of IRIX for 64-bit IRIX (6.0).
+**	Use IRIX5 instead of IRIX for IRIX 5.x.
+** 
+**	This version tries to be adaptive using _MIPS_SIM:
+**		_MIPS_SIM == _ABIO32 (= 1)    Abi: -32  on IRIX 6.2
+**		_MIPS_SIM == _ABIN32 (= 2)    Abi: -n32 on IRIX 6.2
+**		_MIPS_SIM == _ABI64  (= 3)    Abi: -64 on IRIX 6.2
+**
+**		_MIPS_SIM is 1 also on IRIX 5.3
+**
+**	IRIX64 changes from Mark R. Levinson <ml@cvdev.rochester.edu>.
+**	IRIX5 changes from Kari E. Hurtta <Kari.Hurtta@fmi.fi>.
+**	Adaptive changes from Kari E. Hurtta <Kari.Hurtta@fmi.fi>.
+*/
+
+#if defined(__sgi)
+# ifndef IRIX
+#  define IRIX
+# endif
+# if _MIPS_SIM > 0 && !defined(IRIX5)
+#  define IRIX5			/* IRIX5 or IRIX6 */
+# endif
+# if _MIPS_SIM > 1 && !defined(IRIX6) && !defined(IRIX64)
+#  define IRIX6			/* IRIX6 */
+# endif
+
+#endif
+
+#ifdef IRIX
+# define SYSTEM5	1	/* this is a System-V derived system */
+# define HASSETREUID	1	/* has setreuid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define IP_SRCROUTE	1	/* can check IP source routing */
+# define setpgid	BSDsetpgrp
+# define GIDSET_T	gid_t
+# define SFS_TYPE	SFS_4ARGS	/* four argument statfs() call */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+# ifdef IRIX6
+#  define LA_TYPE	LA_IRIX6	/* figure out at run time */
+#  define SAFENFSPATHCONF 0	/* pathconf(2) lies on NFS filesystems */
+#  define SYSLOG_BUFSIZE 512
+# else
+#  define LA_TYPE	LA_INT
+
+#  ifdef IRIX64
+#   define NAMELISTMASK	0x7fffffffffffffff	/* mask for nlist() values */
+#  else
+#   define NAMELISTMASK	0x7fffffff		/* mask for nlist() values */
+#  endif
+# endif
+# if defined(IRIX64) || defined(IRIX5) 
+#  include <sys/cdefs.h>
+#  include <paths.h>
+#  define ARGV_T	char *const *
+#  define HASSETRLIMIT	1	/* has setrlimit(2) syscall */
+#  define HASGETDTABLESIZE 1    /* has getdtablesize(2) syscall */
+# else
+#  define ARGV_T	const char **
+#  define WAITUNION	1	/* use "union wait" as wait argument type */
+# endif
+#endif
+
+
+/*
+**  SunOS and Solaris
+**
+**	Tested on SunOS 4.1.x (a.k.a. Solaris 1.1.x) and
+**	Solaris 2.4 (a.k.a. SunOS 5.4).
+*/
+
+#if defined(sun) && !defined(BSD)
+
+# include <sys/time.h>
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define IP_SRCROUTE	1	/* can check IP source routing */
+# define SAFENFSPATHCONF 1	/* pathconf(2) pessimizes on NFS filesystems */
+
+# ifdef SOLARIS_2_3
+#  define SOLARIS	20300	/* for back compat only -- use -DSOLARIS=20300 */
+# endif
+
+# if defined(NOT_SENDMAIL) && !defined(SOLARIS) && defined(sun) && (defined(__svr4__) || defined(__SVR4))
+#  define SOLARIS	1	/* unknown Solaris version */
+# endif
+
+# ifdef SOLARIS
+			/* Solaris 2.x (a.k.a. SunOS 5.x) */
+#  ifndef __svr4__
+#   define __svr4__		/* use all System V Releae 4 defines below */
+#  endif
+#  define GIDSET_T	gid_t
+#  define USE_SA_SIGACTION	1	/* use sa_sigaction field */
+#  ifndef _PATH_UNIX
+#   define _PATH_UNIX		"/dev/ksyms"
+#  endif
+#  ifndef _PATH_VENDOR_CF
+#   define _PATH_VENDOR_CF	"/etc/mail/sendmail.cf"
+#  endif
+#  ifndef _PATH_SENDMAILPID
+#   define _PATH_SENDMAILPID	"/etc/mail/sendmail.pid"
+#  endif
+#  ifndef _PATH_HOSTS
+#   define _PATH_HOSTS		"/etc/inet/hosts"
+#  endif
+#  ifndef SYSLOG_BUFSIZE
+#   define SYSLOG_BUFSIZE	1024	/* allow full size syslog buffer */
+#  endif
+#  ifndef TZ_TYPE
+#   define TZ_TYPE	TZ_TZNAME
+#  endif
+#  if SOLARIS >= 20300 || (SOLARIS < 10000 && SOLARIS >= 203)
+#   define USESETEUID	1		/* seteuid works as of 2.3 */
+#  endif
+#  if SOLARIS >= 20500 || (SOLARIS < 10000 && SOLARIS >= 205)
+#   define HASSETREUID	1		/* setreuid works as of 2.5 */
+#   ifndef LA_TYPE
+#    define LA_TYPE	LA_KSTAT	/* use kstat(3k) -- may work in < 2.5 */
+#   endif
+#  endif
+#  if SOLARIS >= 20600 || (SOLARIS < 10000 && SOLARIS >= 206)
+#   define HASSNPRINTF	1		/* has snprintf starting in 2.6 */
+#  endif
+#  ifndef HASGETUSERSHELL
+#   define HASGETUSERSHELL 0	/* getusershell(3) causes core dumps */
+#  endif
+
+# else
+			/* SunOS 4.0.3 or 4.1.x */
+#  define HASGETUSERSHELL 1	/* DOES have getusershell(3) call in libc */
+#  define HASSETREUID	1	/* has setreuid(2) call */
+#  ifndef HASFLOCK
+#   define HASFLOCK	1	/* has flock(2) call */
+#  endif
+#  define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+#  define TZ_TYPE	TZ_TM_ZONE	/* use tm->tm_zone */
+#  include <memory.h>
+#  include <vfork.h>
+
+#  ifdef SUNOS403
+			/* special tweaking for SunOS 4.0.3 */
+#   include <malloc.h>
+#   define BSD4_3	1	/* 4.3 BSD-based */
+#   define NEEDSTRSTR	1	/* need emulation of strstr(3) routine */
+#   define WAITUNION	1	/* use "union wait" as wait argument type */
+#   undef WIFEXITED
+#   undef WEXITSTATUS
+#   undef HASUNAME
+#   define setpgid	setpgrp
+#   define MODE_T	int
+typedef int		pid_t;
+extern char		*getenv();
+
+#  else
+			/* 4.1.x specifics */
+#   define HASSETSID	1	/* has Posix setsid(2) call */
+#   define HASSETVBUF	1	/* we have setvbuf(3) in libc */
+
+#  endif
+# endif
+
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_INT
+# endif
+
+#endif /* sun && !BSD */
+
+/*
+**  DG/UX
+**
+**	Tested on 5.4.2 and 5.4.3.  Use DGUX_5_4_2 to get the
+**	older support.
+**	5.4.3 changes from Mark T. Robinson <mtr@ornl.gov>.
+*/
+
+#ifdef DGUX_5_4_2
+# define DGUX		1
+#endif
+
+#ifdef	DGUX
+# define SYSTEM5	1
+# define LA_TYPE	LA_DGUX
+# define HASSETREUID	1	/* has setreuid(2) call */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASSETSID	1	/* has Posix setsid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define IP_SRCROUTE	0	/* does not have <netinet/ip_var.h> */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) */
+# define HASSNPRINTF	1	/* has snprintf(3) */
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+# define SPT_TYPE	SPT_NONE	/* don't use setproctitle */
+# define SFS_TYPE	SFS_4ARGS	/* four argument statfs() call */
+
+/* these include files must be included early on DG/UX */
+# include <netinet/in.h>
+# include <arpa/inet.h>
+
+/* compiler doesn't understand const? */
+# define const
+
+# ifdef DGUX_5_4_2
+#  define inet_addr	dgux_inet_addr
+extern long	dgux_inet_addr();
+# endif
+#endif
+
+
+/*
+**  Digital Ultrix 4.2A or 4.3
+**
+**	Apparently, fcntl locking is broken on 4.2A, in that locks are
+**	not dropped when the process exits.  This causes major problems,
+**	so flock is the only alternative.
+*/
+
+#ifdef ultrix
+# define HASSETREUID	1	/* has setreuid(2) call */
+# define HASUNSETENV	1	/* has unsetenv(3) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# ifndef HASFLOCK
+#  define HASFLOCK	1	/* has flock(2) call */
+# endif
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# ifndef BROKEN_RES_SEARCH
+#  define BROKEN_RES_SEARCH 1	/* res_search(unknown) returns h_errno=0 */
+# endif
+# ifdef vax
+#  define LA_TYPE	LA_FLOAT
+# else
+#  define LA_TYPE	LA_INT
+#  define LA_AVENRUN	"avenrun"
+# endif
+# define SFS_TYPE	SFS_MOUNT	/* use <sys/mount.h> statfs() impl */
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* pre-4.4 TCP/IP implementation is broken */
+# endif
+# define SYSLOG_BUFSIZE	256
+#endif
+
+
+/*
+**  OSF/1 for KSR.
+**
+**      Contributed by Todd C. Miller <Todd.Miller@cs.colorado.edu>
+*/
+
+#ifdef __ksr__
+# define __osf__	1       /* get OSF/1 defines below */
+# ifndef TZ_TYPE
+#  define TZ_TYPE	TZ_TZNAME	/* use tzname[] vector */
+# endif
+#endif
+
+
+/*
+**  OSF/1 for Intel Paragon.
+**
+**	Contributed by Jeff A. Earickson <jeff@ssd.intel.com>
+**	of Intel Scalable Systems Divison.
+*/
+
+#ifdef __PARAGON__
+# define __osf__	1	/* get OSF/1 defines below */
+# ifndef TZ_TYPE
+#  define TZ_TYPE	TZ_TZNAME	/* use tzname[] vector */
+# endif
+# define GIDSET_T	gid_t
+# define MAXNAMLEN	NAME_MAX
+#endif
+
+
+/*
+**  OSF/1 (tested on Alpha) -- now known as Digital UNIX.
+**
+**	Tested for 3.2 and 4.0.
+*/
+
+#ifdef __osf__
+# define HASUNSETENV	1	/* has unsetenv(3) call */
+# define USESETEUID	1	/* has useable seteuid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define IP_SRCROUTE	1	/* can check IP source routing */
+# define HAS_ST_GEN	1	/* has st_gen field in stat struct */
+# ifndef HASFLOCK
+#  define HASFLOCK	1	/* has flock(2) call */
+# endif
+# define LA_TYPE	LA_ALPHAOSF
+# define SFS_TYPE	SFS_MOUNT	/* use <sys/mount.h> statfs() impl */
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/var/adm/sendmail/sendmail.cf"
+# endif  
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/var/run/sendmail.pid"
+# endif
+#endif
+
+
+/*
+**  NeXTstep
+*/
+
+#ifdef NeXT
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define NEEDPUTENV	2	/* need putenv(3) call; no setenv(3) call */
+# ifndef HASFLOCK
+#  define HASFLOCK	1	/* has flock(2) call */
+# endif
+# define NEEDGETOPT	1	/* need a replacement for getopt(3) */
+# define WAITUNION	1	/* use "union wait" as wait argument type */
+# define UID_T		int	/* compiler gripes on uid_t */
+# define GID_T		int	/* ditto for gid_t */
+# define MODE_T		int	/* and mode_t */
+# define setpgid	setpgrp
+# ifndef NOT_SENDMAIL
+#  define sleep		sleepX
+# endif
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_MACH
+# endif
+# define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+# ifndef _POSIX_SOURCE
+typedef int		pid_t;
+#  undef WEXITSTATUS
+#  undef WIFEXITED
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/etc/sendmail/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/etc/sendmail/sendmail.pid"
+# endif
+
+# ifdef TCPWRAPPERS
+#  ifndef HASUNSETENV
+#   define HASUNSETENV	1
+#  endif
+#  undef NEEDPUTENV
+# endif
+
+#endif
+
+
+/*
+**  4.4 BSD
+**
+**	See also BSD defines.
+*/
+
+#if defined(BSD4_4) && !defined(__bsdi__) && !defined(__GNU__)
+# include <paths.h>
+# define HASUNSETENV	1	/* has unsetenv(3) call */
+# define USESETEUID	1	/* has useable seteuid(2) call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define HASSNPRINTF	1	/* has snprintf(3) and vsnprintf(3) */
+# define HASSTRERROR	1	/* has strerror(3) */
+# define HAS_ST_GEN	1	/* has st_gen field in stat struct */
+# include <sys/cdefs.h>
+# define ERRLIST_PREDEFINED	/* don't declare sys_errlist */
+# define BSD4_4_SOCKADDR	/* has sa_len */
+# define NETLINK	1	/* supports AF_LINK */
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_SUBR
+# endif
+# define SFS_TYPE	SFS_MOUNT	/* use <sys/mount.h> statfs() impl */
+# define SPT_TYPE	SPT_PSSTRINGS	/* use PS_STRINGS pointer */
+#endif
+
+
+/*
+**  BSD/OS (was BSD/386) (all versions)
+**	From Tony Sanders, BSDI
+*/
+
+#ifdef __bsdi__
+# include <paths.h>
+# define HASUNSETENV	1	/* has the unsetenv(3) call */
+# define HASSETSID	1	/* has the setsid(2) POSIX syscall */
+# define USESETEUID	1	/* has useable seteuid(2) call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define HASSNPRINTF	1	/* has snprintf(3) and vsnprintf(3) */
+# define HASUNAME	1	/* has uname(2) syscall */
+# define HASSTRERROR	1	/* has strerror(3) */
+# define HAS_ST_GEN	1	/* has st_gen field in stat struct */
+# include <sys/cdefs.h>
+# define ERRLIST_PREDEFINED	/* don't declare sys_errlist */
+# define BSD4_4_SOCKADDR	/* has sa_len */
+# define NETLINK	1	/* supports AF_LINK */
+# define SFS_TYPE	SFS_MOUNT	/* use <sys/mount.h> statfs() impl */
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_SUBR
+# endif
+# define GIDSET_T	gid_t
+# if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199312
+			/* version 1.1 or later */
+#  undef SPT_TYPE
+#  define SPT_TYPE	SPT_BUILTIN	/* setproctitle is in libc */
+# else
+			/* version 1.0 or earlier */
+#  ifndef OLD_NEWDB
+#   define OLD_NEWDB	1	/* old version of newdb library */
+#  endif
+#  define SPT_PADCHAR	'\0'	/* pad process title with nulls */
+# endif
+#endif
+
+
+
+/*
+**  FreeBSD / NetBSD / OpenBSD (all architectures, all versions)
+**
+**  4.3BSD clone, closer to 4.4BSD	for FreeBSD 1.x and NetBSD 0.9x
+**  4.4BSD-Lite based			for FreeBSD 2.x and NetBSD 1.x
+**
+**	See also BSD defines.
+*/
+
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+# include <paths.h>
+# define HASUNSETENV	1	/* has unsetenv(3) call */
+# define HASSETSID	1	/* has the setsid(2) POSIX syscall */
+# define USESETEUID	1	/* has useable seteuid(2) call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define HASSNPRINTF	1	/* has snprintf(3) and vsnprintf(3) */
+# define HASUNAME	1	/* has uname(2) syscall */
+# define HASSTRERROR	1	/* has strerror(3) */
+# define HAS_ST_GEN	1	/* has st_gen field in stat struct */
+# include <sys/cdefs.h>
+# define ERRLIST_PREDEFINED	/* don't declare sys_errlist */
+# define BSD4_4_SOCKADDR	/* has sa_len */
+# define NETLINK	1	/* supports AF_LINK */
+# define SAFENFSPATHCONF 1	/* pathconf(2) pessimizes on NFS filesystems */
+# define GIDSET_T	gid_t
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_SUBR
+# endif
+# define SFS_TYPE	SFS_MOUNT	/* use <sys/mount.h> statfs() impl */
+# if defined(__NetBSD__) && (NetBSD > 199307 || NetBSD0_9 > 1)
+#  undef SPT_TYPE
+#  define SPT_TYPE	SPT_BUILTIN	/* setproctitle is in libc */
+# endif
+# if defined(__FreeBSD__)
+#  undef SPT_TYPE
+#  if __FreeBSD__ == 2
+#   include <osreldate.h>		/* and this works */
+#   if __FreeBSD_version >= 199512	/* 2.2-current right now */
+#    include <libutil.h>
+#    define SPT_TYPE	SPT_BUILTIN
+#   endif
+#  endif
+#  ifndef SPT_TYPE
+#   define SPT_TYPE	SPT_REUSEARGV
+#   define SPT_PADCHAR	'\0'		/* pad process title with nulls */
+#  endif
+# endif
+# if defined(__OpenBSD__)
+#  undef SPT_TYPE
+#  define SPT_TYPE	SPT_BUILTIN	/* setproctitle is in libc */
+# endif
+#endif
+
+
+
+/*
+**  Mach386
+**
+**	For mt Xinu's Mach386 system.
+*/
+
+#if defined(MACH) && defined(i386) && !defined(__GNU__)
+# define MACH386	1
+# define HASUNSETENV	1	/* has unsetenv(3) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# ifndef HASFLOCK
+#  define HASFLOCK	1	/* has flock(2) call */
+# endif
+# define NEEDGETOPT	1	/* need a replacement for getopt(3) */
+# define NEEDSTRTOL	1	/* need the strtol() function */
+# define setpgid	setpgrp
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_FLOAT
+# endif
+# define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+# undef HASSETVBUF		/* don't actually have setvbuf(3) */
+# undef WEXITSTATUS
+# undef WIFEXITED
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/etc/sendmail.pid"
+# endif
+#endif
+
+
+
+/*
+**  GNU OS (hurd)
+**	Largely BSD & posix compatible.
+**	Port contributed by Miles Bader <miles@gnu.ai.mit.edu>.
+*/
+
+#ifdef __GNU_HURD__
+# define SIOCGIFCONF_IS_BROKEN	1
+# define IP_SRCROUTE		0
+# define HASFCHMOD		1
+# define HASFLOCK		1
+# define HASUNAME		1
+# define HASUNSETENV		1
+# define HASSETSID		1
+# define HASINITGROUPS		1
+# define HASSETVBUF		1
+# define HASSETREUID		1
+# define USESETEUID		1
+# define HASLSTAT		1
+# define HASSETRLIMIT		1
+# define HASWAITPID		1
+# define HASGETDTABLESIZE	1
+# define HASSTRERROR		1
+/* # define NEEDGETOPT		1 */
+# define HASGETUSERSHELL	1
+# define ERRLIST_PREDEFINED	1
+# define BSD4_4_SOCKADDR	1
+# define GIDSET_T	gid_t
+# define LA_TYPE	LA_MACH
+
+/* GNU uses mach[34], which renames some rpcs from mach2.x.  */
+# define host_self	mach_host_self
+# define SFS_TYPE	SFS_STATFS
+# define SPT_TYPE	SPT_CHANGEARGV
+
+/* GNU has no MAXPATHLEN; ideally the code should be changed to not use it.  */
+# define MAXPATHLEN	2048
+
+/* Define device num frobbing macros.  */
+# define major(x)	((x)>>8)
+# define minor(x)	((x)&0xFF)
+#endif /* GNU */
+
+/*
+**  4.3 BSD -- this is for very old systems
+**
+**	Should work for mt Xinu MORE/BSD and Mips UMIPS-BSD 2.1.
+**
+**	You'll also have to install a new resolver library.
+**	I don't guarantee that support for this environment is complete.
+*/
+
+#if defined(oldBSD43) || defined(MORE_BSD) || defined(umipsbsd)
+# define NEEDVPRINTF	1	/* need a replacement for vprintf(3) */
+# define NEEDGETOPT	1	/* need a replacement for getopt(3) */
+# define ARBPTR_T	char *
+# define setpgid	setpgrp
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_FLOAT
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+# undef WEXITSTATUS
+# undef WIFEXITED
+typedef short		pid_t;
+extern int		errno;
+#endif
+
+
+/*
+**  SCO Unix
+**
+**	This includes three parts:
+**
+**	The first is for SCO OpenServer 5.
+**	(Contributed by Keith Reynolds <keithr@sco.COM>).
+**
+**		SCO OpenServer 5 has a compiler version number macro,
+**		which we can use to figure out what version we're on.
+**		This may have to change in future releases.
+**
+**	The second is for SCO UNIX 3.2v4.2/Open Desktop 3.0.
+**	(Contributed by Philippe Brand <phb@colombo.telesys-innov.fr>).
+**
+**	The third is for SCO UNIX 3.2v4.0/Open Desktop 2.0 and earlier.
+*/
+
+/* SCO OpenServer 5 */
+#if _SCO_DS >= 1
+# include <paths.h>
+# define _SCO_unix_4_2
+# define SIOCGIFNUM_IS_BROKEN 1	/* SIOCGIFNUM returns bogus value */
+# define HASSNPRINTF	1	/* has snprintf(3) call */
+# define HASFCHMOD	1	/* has fchmod(2) call */
+# define HASSETRLIMIT	1	/* has setrlimit(2) call */
+# define USESETEUID	1	/* has seteuid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASGETDTABLESIZE 1	/* has getdtablesize(2) call */
+# define RLIMIT_NEEDS_SYS_TIME_H	1
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_DEVSHORT
+# endif
+# define _PATH_AVENRUN	"/dev/table/avenrun"
+# define SOCKADDR_LEN_T	size_t	/* e.g., arg#3 to accept, getsockname */
+# define SOCKOPT_LEN_T	size_t	/* arg#5 to getsockopt */
+#endif
+
+/* SCO UNIX 3.2v4.2/Open Desktop 3.0 */
+#ifdef _SCO_unix_4_2
+# define _SCO_unix_
+# define HASSETREUID	1	/* has setreuid(2) call */
+#endif
+
+/* SCO UNIX 3.2v4.0 Open Desktop 2.0 and earlier */
+#ifdef _SCO_unix_
+# include <sys/stream.h>	/* needed for IP_SRCROUTE */
+# define SYSTEM5	1	/* include all the System V defines */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define NOFTRUNCATE	0	/* has (simulated) ftruncate call */
+# define USE_SIGLONGJMP	1	/* sigsetjmp needed for signal handling */
+# define MAXPATHLEN	PATHSIZE
+# define SFS_TYPE	SFS_4ARGS	/* use <sys/statfs.h> 4-arg impl */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+# define SPT_TYPE	SPT_SCO		/* write kernel u. area */
+# define TZ_TYPE	TZ_TM_NAME	/* use tm->tm_name */
+# define UID_T		uid_t
+# define GID_T		gid_t
+# define GIDSET_T	gid_t
+# define _PATH_UNIX		"/unix"
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/etc/sendmail.pid"
+# endif
+
+/* stuff fixed in later releases */
+# ifndef _SCO_unix_4_2
+#  define SYS5SIGNALS	1	/* SysV signal semantics -- reset on each sig */
+# endif
+
+# ifndef _SCO_DS
+#  define ftruncate	chsize	/* use chsize(2) to emulate ftruncate */
+#  define NEEDFSYNC	1	/* needs the fsync(2) call stub */
+#  define NETUNIX	0	/* no unix domain socket support */
+#  define LA_TYPE	LA_SHORT
+# endif
+
+#endif
+
+
+/*
+**  ISC (SunSoft) Unix.
+**
+**	Contributed by J.J. Bailey <jjb@jagware.bcc.com>
+*/
+
+#ifdef ISC_UNIX
+# include <net/errno.h>
+# include <sys/stream.h>	/* needed for IP_SRCROUTE */
+# include <sys/bsdtypes.h>
+# define SYSTEM5	1	/* include all the System V defines */
+# define SYS5SIGNALS	1	/* SysV signal semantics -- reset on each sig */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define HASSETREUID	1	/* has setreuid(2) call */
+# define NEEDFSYNC	1	/* needs the fsync(2) call stub */
+# define NETUNIX	0	/* no unix domain socket support */
+# define MAXPATHLEN	1024
+# define LA_TYPE	LA_SHORT
+# define SFS_TYPE	SFS_STATFS	/* use <sys/statfs.h> statfs() impl */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+# define _PATH_UNIX		"/unix"
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/etc/sendmail.pid"
+# endif
+
+#endif
+
+
+/*
+**  Altos System V (5.3.1)
+**	Contributed by Tim Rice <tim@trr.metro.net>.
+*/
+
+#ifdef ALTOS_SYSTEM_V
+# include <sys/stream.h>
+# include <limits.h>
+# define SYSTEM5	1	/* include all the System V defines */
+# define SYS5SIGNALS	1	/* SysV signal semantics -- reset on each sig */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define WAITUNION	1	/* use "union wait" as wait argument type */
+# define NEEDFSYNC	1	/* no fsync(2) in system library */
+# define NEEDSTRSTR	1	/* need emulation of the strstr(3) call */
+# define NOFTRUNCATE	1	/* do not have ftruncate(2) */
+# define MAXPATHLEN	PATH_MAX
+# define LA_TYPE	LA_SHORT
+# define SFS_TYPE	SFS_STATFS	/* use <sys/statfs.h> statfs() impl */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+# define TZ_TYPE	TZ_TZNAME	/* use tzname[] vector */
+# define NETUNIX	0	/* no unix domain socket support */
+# undef WIFEXITED
+# undef WEXITSTATUS
+# define strtoul	strtol	/* gcc library bogosity */
+
+typedef unsigned short	uid_t;
+typedef unsigned short	gid_t;
+typedef short		pid_t;
+typedef unsigned long	mode_t;
+
+/* some stuff that should have been in the include files */
+# include <grp.h>
+extern char		*malloc();
+extern struct passwd	*getpwent();
+extern struct passwd	*getpwnam();
+extern struct passwd	*getpwuid();
+extern char		*getenv();
+extern struct group	*getgrgid();
+extern struct group	*getgrnam();
+
+#endif
+
+
+/*
+**  ConvexOS 11.0 and later
+**
+**	"Todd C. Miller" <millert@mroe.cs.colorado.edu> claims this
+**	works on 9.1 as well.
+**
+**  ConvexOS 11.5 and later, should work on 11.0 as defined.
+**  For pre-ConvexOOS 11.0, define NEEDGETOPT, undef IDENTPROTO
+**
+**	Eric Schnoebelen (eric@cirr.com) For CONVEX Computer Corp.
+**		(now the CONVEX Technologies Center of Hewlett Packard)
+*/
+
+#ifdef _CONVEX_SOURCE
+# define HASGETDTABLESIZE	1	/* has getdtablesize(2) */
+# define HASINITGROUPS	1	/* has initgroups(3) */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASSETSID	1	/* has POSIX setsid(2) call */
+# define HASUNSETENV	1	/* has unsetenv(3) */
+# define HASFLOCK	1	/* has flock(2) */
+# define HASSETRLIMIT	1	/* has setrlimit(2) */
+# define HASSETREUID	1	/* has setreuid(2) */
+# define BROKEN_RES_SEARCH	1	/* res_search(unknown) returns h_error=0 */
+# define NEEDPUTENV	1	/* needs putenv (written in terms of setenv) */
+# define NEEDGETOPT	0	/* need replacement for getopt(3) */
+# define IP_SRCROUTE	0	/* Something is broken with getsockopt() */
+# define LA_TYPE	LA_FLOAT
+# define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef S_IREAD
+#  define S_IREAD	_S_IREAD
+#  define S_IWRITE	_S_IWRITE
+#  define S_IEXEC	_S_IEXEC
+#  define S_IFMT	_S_IFMT
+#  define S_IFCHR	_S_IFCHR
+#  define S_IFBLK	_S_IFBLK
+# endif
+# ifndef TZ_TYPE
+#  define TZ_TYPE	TZ_TIMEZONE
+# endif
+# ifndef IDENTPROTO
+#  define IDENTPROTO	1
+# endif
+# ifndef SHARE_V1
+#  define SHARE_V1	1	/* version 1 of the fair share scheduler */
+# endif
+# if !defined(__GNUC__ )
+#  define UID_T	int		/* GNUC gets it right, ConvexC botches */
+#  define GID_T	int		/* GNUC gets it right, ConvexC botches */
+# endif
+# if SECUREWARE
+#  define FORK	fork		/* SecureWare wants the real fork! */
+# else
+#  define FORK	vfork		/* the rest of the OS versions don't care */
+# endif
+#endif
+
+
+/*
+**  RISC/os 4.52
+**
+**	Gives a ton of warning messages, but otherwise compiles.
+*/
+
+#ifdef RISCOS
+
+# define HASUNSETENV	1	/* has unsetenv(3) call */
+# ifndef HASFLOCK
+#  define HASFLOCK	1	/* has flock(2) call */
+# endif
+# define WAITUNION	1	/* use "union wait" as wait argument type */
+# define NEEDGETOPT	1	/* need a replacement for getopt(3) */
+# define NEEDPUTENV	1	/* need putenv(3) call */
+# define NEEDSTRSTR	1	/* need emulation of the strstr(3) call */
+# define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+# define LA_TYPE	LA_INT
+# define LA_AVENRUN	"avenrun"
+# define _PATH_UNIX	"/unix"
+# undef WIFEXITED
+
+# define setpgid	setpgrp
+
+extern int		errno;
+typedef int		pid_t;
+# define SIGFUNC_DEFINED
+# define SIGFUNC_RETURN	(0)
+# define SIGFUNC_DECL	int
+typedef int		(*sigfunc_t)();
+extern char		*getenv();
+extern void		*malloc();
+
+/* added for RISC/os 4.01...which is dumber than 4.50 */
+# ifdef RISCOS_4_0
+#  ifndef ARBPTR_T
+#   define ARBPTR_T	char *
+#  endif
+#  undef HASFLOCK
+#  define HASFLOCK	0
+# endif /* RISCOS_4_0 */
+
+# include <sys/time.h>
+
+#endif
+
+
+/*
+**  Linux 0.99pl10 and above...
+**
+**  Thanks to, in reverse order of contact:
+**
+**	John Kennedy <warlock@csuchico.edu>
+**	Andrew Pam <avatar@aus.xanadu.com>
+**	Florian La Roche <rzsfl@rz.uni-sb.de>
+**	Karl London <karl@borg.demon.co.uk>
+**
+**  Last compiled against:	[06/10/96 @ 09:21:40 PM (Monday)]
+**	sendmail 8.8-a4		named bind-4.9.4-T4B	db-1.85
+**	gcc 2.7.2		libc-5.3.12		linux 2.0.0
+**
+**  NOTE: Override HASFLOCK as you will but, as of 1.99.6, mixed-style
+** 	file locking is no longer allowed.  In particular, make sure
+**	your DBM library and sendmail are both using either flock(2)
+**	*or* fcntl(2) file locking, but not both.
+*/
+
+#ifdef __linux__
+# define BSD		1	/* include BSD defines */
+# define NEEDGETOPT	1	/* need a replacement for getopt(3) */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASUNSETENV	1	/* has unsetenv(3) call */
+# ifndef HASSNPRINTF
+#  define HASSNPRINTF	1	/* has snprintf(3) and vsnprintf(3) */
+# endif
+# define ERRLIST_PREDEFINED	/* don't declare sys_errlist */
+# define GIDSET_T	gid_t	/* from <linux/types.h> */
+# define HASGETUSERSHELL 0	/* getusershell(3) broken in Slackware 2.0 */
+# define IP_SRCROUTE	0	/* linux <= 1.2.8 doesn't support IP_OPTIONS */
+# define USE_SIGLONGJMP	1	/* sigsetjmp needed for signal handling */
+# ifndef HASFLOCK
+#  include <linux/version.h>
+#  if LINUX_VERSION_CODE < 66399
+#   define HASFLOCK	0	/* flock(2) is broken after 0.99.13 */
+#  else
+#   define HASFLOCK	1	/* flock(2) fixed after 1.3.95 */
+#  endif
+# endif
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_PROCSTR
+# endif
+# define SFS_TYPE	SFS_VFS		/* use <sys/vfs.h> statfs() impl */
+# define SPT_PADCHAR	'\0'		/* pad process title with nulls */
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/var/run/sendmail.pid"
+# endif
+# define TZ_TYPE	TZ_TNAME
+# include <sys/sysmacros.h>
+# undef atol			/* wounded in <stdlib.h> */
+#endif
+
+
+/*
+**  DELL SVR4 Issue 2.2, and others
+**	From Kimmo Suominen <kim@grendel.lut.fi>
+**
+**	It's on #ifdef DELL_SVR4 because Solaris also gets __svr4__
+**	defined, and the definitions conflict.
+**
+**	Peter Wemm <peter@perth.DIALix.oz.au> claims that the setreuid
+**	trick works on DELL 2.2 (SVR4.0/386 version 4.0) and ESIX 4.0.3A
+**	(SVR4.0/386 version 3.0).
+*/
+
+#ifdef DELL_SVR4
+				/* no changes necessary */
+				/* see general __svr4__ defines below */
+#endif
+
+
+/*
+**  Apple A/UX 3.0
+*/
+
+#ifdef _AUX_SOURCE
+# include <sys/sysmacros.h>
+# define BSD			/* has BSD routines */
+# define HASSETRLIMIT	0	/* ... but not setrlimit(2) */
+# define BROKEN_RES_SEARCH 1	/* res_search(unknown) returns h_errno=0 */
+# define BOGUS_O_EXCL	1	/* exclusive open follows symlinks */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASFCHMOD	1	/* has fchmod(2) syscall */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASSETVBUF	1	/* has setvbuf(3) in libc */
+# define HASSTRERROR	1	/* has strerror(3) */
+# define SIGFUNC_DEFINED	/* sigfunc_t already defined */
+# define SIGFUNC_RETURN		/* POSIX-mode */
+# define SIGFUNC_DECL	void	/* POSIX-mode */
+# define ERRLIST_PREDEFINED	1
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+# ifndef LA_TYPE
+#  define LA_TYPE	LA_INT
+#  define FSHIFT	16
+# endif
+# define LA_AVENRUN	"avenrun"
+# define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+# define TZ_TYPE	TZ_TZNAME
+# ifndef _PATH_UNIX
+#  define _PATH_UNIX		"/unix"		/* should be in <paths.h> */
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# undef WIFEXITED
+# undef WEXITSTATUS
+#endif
+
+
+/*
+**  Encore UMAX V
+**
+**	Not extensively tested.
+*/
+
+#ifdef UMAXV
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASSETVBUF	1	/* we have setvbuf(3) in libc */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define SYS5SIGNALS	1	/* SysV signal semantics -- reset on each sig */
+# define SYS5SETPGRP	1	/* use System V setpgrp(2) syscall */
+# define SFS_TYPE	SFS_4ARGS	/* four argument statfs() call */
+# define MAXPATHLEN	PATH_MAX
+extern struct passwd	*getpwent(), *getpwnam(), *getpwuid();
+extern struct group	*getgrent(), *getgrnam(), *getgrgid();
+# undef WIFEXITED
+# undef WEXITSTATUS
+#endif
+
+
+/*
+**  Stardent Titan 3000 running TitanOS 4.2.
+**
+**	Must be compiled in "cc -43" mode.
+**
+**	From Kate Hedstrom <kate@ahab.rutgers.edu>.
+**
+**	Note the tweaking below after the BSD defines are set.
+*/
+
+#ifdef titan
+# define setpgid	setpgrp
+typedef int		pid_t;
+# undef WIFEXITED
+# undef WEXITSTATUS
+#endif
+
+
+/*
+**  Sequent DYNIX 3.2.0
+**
+**	From Jim Davis <jdavis@cs.arizona.edu>.
+*/
+
+#ifdef sequent
+
+# define BSD		1
+# define HASUNSETENV	1
+# define BSD4_3		1	/* to get signal() in conf.c */
+# define WAITUNION	1
+# define LA_TYPE	LA_FLOAT
+# ifdef	_POSIX_VERSION
+#  undef _POSIX_VERSION		/* set in <unistd.h> */
+# endif
+# undef HASSETVBUF		/* don't actually have setvbuf(3) */
+# define setpgid	setpgrp
+
+/* Have to redefine WIFEXITED to take an int, to work with waitfor() */
+# undef	WIFEXITED
+# define WIFEXITED(s)	(((union wait*)&(s))->w_stopval != WSTOPPED && \
+			 ((union wait*)&(s))->w_termsig == 0)
+# define WEXITSTATUS(s)	(((union wait*)&(s))->w_retcode)
+typedef int		pid_t;
+# define isgraph(c)	(isprint(c) && (c != ' '))
+
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+
+# ifndef _PATH_UNIX
+#  define _PATH_UNIX		"/dynix"
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+#endif
+
+
+/*
+**  Sequent DYNIX/ptx v2.0 (and higher)
+**
+**	For DYNIX/ptx v1.x, undefine HASSETREUID.
+**
+**	From Tim Wright <timw@sequent.com>.
+**	Update from Jack Woolley <jwoolley@sctcorp.com>, 26 Dec 1995,
+**		for DYNIX/ptx 4.0.2.
+*/
+
+#ifdef _SEQUENT_
+# include <sys/stream.h>
+# define SYSTEM5	1	/* include all the System V defines */
+# define HASSETSID	1	/* has POSIX setsid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define HASSETREUID	1	/* has setreuid(2) call */
+# define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# define GIDSET_T	gid_t
+# define LA_TYPE	LA_INT
+# define SFS_TYPE	SFS_STATFS	/* use <sys/statfs.h> statfs() impl */
+# define SPT_TYPE	SPT_NONE	/* don't use setproctitle */
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/etc/sendmail.pid"
+# endif
+#endif
+
+
+/*
+**  Cray Unicos
+**
+**	Ported by David L. Kensiski, Sterling Sofware <kensiski@nas.nasa.gov>
+*/
+
+#ifdef UNICOS
+# define SYSTEM5	1	/* include all the System V defines */
+# define SYS5SIGNALS	1	/* SysV signal semantics -- reset on each sig */
+# define MAXPATHLEN	PATHSIZE
+# define LA_TYPE	LA_ZERO
+# define SFS_TYPE	SFS_4ARGS	/* four argument statfs() call */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+#endif
+
+
+/*
+**  Apollo DomainOS
+**
+**  From Todd Martin <tmartint@tus.ssi1.com> & Don Lewis <gdonl@gv.ssi1.com>
+**
+**  15 Jan 1994; updated 2 Aug 1995
+**
+*/
+
+#ifdef apollo
+# define HASSETREUID	1	/* has setreuid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(2) call */
+# define IP_SRCROUTE	0	/* does not have <netinet/ip_var.h> */
+# define SPT_TYPE	SPT_NONE	/* don't use setproctitle */
+# define LA_TYPE	LA_SUBR		/* use getloadavg.c */
+# define SFS_TYPE	SFS_4ARGS	/* four argument statfs() call */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+# define TZ_TYPE	TZ_TZNAME
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/etc/sendmail.pid"
+# endif
+# undef  S_IFSOCK		/* S_IFSOCK and S_IFIFO are the same */
+# undef  S_IFIFO
+# define S_IFIFO	0010000
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+# define RLIMIT_NEEDS_SYS_TIME_H	1
+# if defined(NGROUPS_MAX) && !NGROUPS_MAX
+#  undef NGROUPS_MAX
+# endif
+#endif
+
+
+/*
+**  UnixWare 2.x
+*/
+
+#ifdef UNIXWARE2
+# define UNIXWARE	1
+# define HASSNPRINTF	1	/* has snprintf(3) and vsnprintf(3) */
+# undef offsetof		/* avoid stddefs.h, sys/sysmacros.h conflict */
+#endif
+
+
+/*
+**  UnixWare 1.1.2.
+**
+**	Updated by Petr Lampa <lampa@fee.vutbr.cz>.
+**	From Evan Champion <evanc@spatial.synapse.org>.
+*/
+
+#ifdef UNIXWARE
+# include <sys/mkdev.h>
+# define SYSTEM5		1
+# define HASGETUSERSHELL	0	/* does not have getusershell(3) call */
+# define HASSETREUID		1
+# define HASSETSID		1
+# define HASINITGROUPS		1
+# define GIDSET_T		gid_t
+# define SLEEP_T		unsigned
+# define SFS_TYPE		SFS_STATVFS
+# define LA_TYPE		LA_ZERO
+# undef WIFEXITED
+# undef WEXITSTATUS
+# define _PATH_UNIX		"/unix"
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/ucblib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/usr/ucblib/sendmail.pid"
+# endif
+# define SYSLOG_BUFSIZE	128
+#endif
+
+
+/*
+**  Intergraph CLIX 3.1
+**
+**	From Paul Southworth <pauls@locust.cic.net>
+*/
+
+#ifdef CLIX
+# define SYSTEM5	1	/* looks like System V */
+# ifndef HASGETUSERSHELL
+#  define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# endif
+# define DEV_BSIZE	512	/* device block size not defined */
+# define GIDSET_T	gid_t
+# undef LOG			/* syslog not available */
+# define NEEDFSYNC	1	/* no fsync in system library */
+# define GETSHORT	_getshort
+#endif
+
+
+/*
+**  NCR MP-RAS 2.x (SysVr4) with Wollongong TCP/IP
+**
+**	From Kevin Darcy <kevin@tech.mis.cfc.com>.
+*/
+
+#ifdef NCR_MP_RAS2
+# include <sys/sockio.h>
+# define __svr4__
+# define IP_SRCROUTE	0	/* Something is broken with getsockopt() */
+# define SYSLOG_BUFSIZE	1024
+# define SPT_TYPE  SPT_NONE
+#endif
+
+
+/*
+**  NCR MP-RAS 3.x (SysVr4) with STREAMware TCP/IP
+**
+**	From Tom Moore <Tom.Moore@DaytonOH.NCR.COM>
+*/
+
+#ifdef NCR_MP_RAS3
+# define __svr4__
+# define SIOCGIFNUM_IS_BROKEN	1	/* SIOCGIFNUM has non-std interface */
+# define SYSLOG_BUFSIZE	1024
+# define SPT_TYPE 	SPT_NONE
+#endif
+
+
+/*
+**  Tandem NonStop-UX SVR4
+**
+**	From Rick McCarty <mccarty@mpd.tandem.com>.
+*/
+
+#ifdef NonStop_UX_BXX
+# define __svr4__
+#endif
+
+
+/*
+**  Hitachi 3050R & 3050RX Workstations running HI-UX/WE2.
+**
+**	Tested for 1.04 and 1.03
+**	From Akihiro Hashimoto ("Hash") <hash@dominic.ipc.chiba-u.ac.jp>.
+*/
+
+#ifdef __H3050R
+# define SYSTEM5	1	/* include all the System V defines */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define setreuid(r, e)	setresuid(r, e, -1)
+# define LA_TYPE	LA_FLOAT
+# define SFS_TYPE	SFS_VFS	/* use <sys/vfs.h> statfs() implementation */
+# define HASSETVBUF	/* HI-UX has no setlinebuf */
+# ifndef GIDSET_T
+#  define GIDSET_T	gid_t
+# endif
+# ifndef _PATH_UNIX
+#  define _PATH_UNIX		"/HI-UX"
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+# ifndef HASGETUSERSHELL
+#  define HASGETUSERSHELL 0	/* getusershell(3) causes core dumps */
+# endif
+
+/* avoid m_flags conflict between db.h & sys/sysmacros.h on HIUX 3050 */
+# undef m_flags
+
+# ifdef __STDC__
+extern int	syslog(int, char *, ...);
+# endif
+
+#endif
+
+
+/*
+**  Amdahl UTS System V 2.1.5 (SVr3-based)
+**
+**    From: Janet Jackson <janet@dialix.oz.au>.
+*/
+
+#ifdef _UTS
+# include <sys/sysmacros.h>
+# undef HASLSTAT		/* has symlinks, but they cause problems */
+# define NEEDFSYNC	1	/* system fsync(2) fails on non-EFS filesys */
+# define SYS5SIGNALS	1	/* System V signal semantics */
+# define SYS5SETPGRP	1	/* use System V setpgrp(2) syscall */
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define HASINITGROUPS	1	/* has initgroups(3) function */
+# define HASSETVBUF	1	/* has setvbuf(3) function */
+# ifndef HASGETUSERSHELL
+#  define HASGETUSERSHELL 0	/* does not have getusershell(3) function */
+# endif
+# define GIDSET_T	gid_t	/* type of 2nd arg to getgroups(2) isn't int */
+# define LA_TYPE	LA_ZERO		/* doesn't have load average */
+# define SFS_TYPE	SFS_4ARGS	/* use 4-arg statfs() */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+# define _PATH_UNIX		"/unix"
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+#endif
+
+/*
+**  Cray Computer Corporation's CSOS
+**
+**	From Scott Bolte <scott@craycos.com>.
+*/
+
+#ifdef _CRAYCOM
+# define SYSTEM5	1	/* include all the System V defines */
+# define SYS5SIGNALS	1	/* SysV signal semantics -- reset on each sig */
+# define NEEDFSYNC	1	/* no fsync in system library */
+# define MAXPATHLEN	PATHSIZE
+# define LA_TYPE	LA_ZERO
+# define SFS_TYPE	SFS_4ARGS	/* four argument statfs() call */
+# define SFS_BAVAIL	f_bfree		/* alternate field name */
+# define _POSIX_CHOWN_RESTRICTED	-1
+extern struct group	*getgrent(), *getgrnam(), *getgrgid();
+#endif
+
+
+/*
+**  Sony NEWS-OS 4.2.1R and 6.0.3
+**
+**	From Motonori NAKAMURA <motonori@cs.ritsumei.ac.jp>.
+*/
+
+#ifdef sony_news
+# ifndef __svr4
+			/* NEWS-OS 4.2.1R */
+#  ifndef BSD
+#   define BSD			/* has BSD routines */
+#  endif
+#  define HASUNSETENV	1	/* has unsetenv(2) call */
+#  undef HASSETVBUF		/* don't actually have setvbuf(3) */
+#  define WAITUNION	1	/* use "union wait" as wait argument type */
+#  define LA_TYPE	LA_INT
+#  define SFS_TYPE	SFS_VFS /* use <sys/vfs.h> statfs() implementation */
+#  ifndef HASFLOCK
+#   define HASFLOCK	1	/* has flock(2) call */
+#  endif
+#  define setpgid	setpgrp
+#  undef WIFEXITED
+#  undef WEXITSTATUS
+#  define MODE_T	int	/* system include files have no mode_t */
+typedef int		pid_t;
+typedef int		(*sigfunc_t)();
+#  define SIGFUNC_DEFINED
+#  define SIGFUNC_RETURN	(0)
+#  define SIGFUNC_DECL		int
+
+# else
+			/* NEWS-OS 6.0.3 with /bin/cc */
+#  ifndef __svr4__
+#   define __svr4__		/* use all System V Releae 4 defines below */
+#  endif
+#  define HASSETSID	1	/* has Posix setsid(2) call */
+#  define HASGETUSERSHELL 1	/* DOES have getusershell(3) call in libc */
+#  define LA_TYPE	LA_READKSYM	/* use MIOC_READKSYM ioctl */
+#  ifndef SPT_TYPE
+#   define SPT_TYPE	SPT_SYSMIPS	/* use sysmips() (OS 6.0.2 or later) */
+#  endif
+#  define GIDSET_T	gid_t
+#  undef WIFEXITED
+#  undef WEXITSTATUS
+#  ifndef SYSLOG_BUFSIZE
+#   define SYSLOG_BUFSIZE	1024
+#  endif
+#  define _PATH_UNIX		"/stand/unix"
+#  ifndef _PATH_VENDOR_CF
+#   define _PATH_VENDOR_CF	"/etc/mail/sendmail.cf"
+#  endif
+#  ifndef _PATH_SENDMAILPID
+#   define _PATH_SENDMAILPID	"/etc/mail/sendmail.pid"
+#  endif
+
+# endif
+#endif
+
+
+/*
+**  Omron LUNA/UNIOS-B 3.0, LUNA2/Mach and LUNA88K Mach
+**
+**	From Motonori NAKAMURA <motonori@cs.ritsumei.ac.jp>.
+*/
+
+#ifdef luna
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+# define HASUNSETENV	1	/* has unsetenv(2) call */
+# define NEEDPUTENV	1	/* need putenv(3) call */
+# define NEEDGETOPT	1	/* need a replacement for getopt(3) */
+# define NEEDSTRSTR	1	/* need emulation of the strstr(3) call */
+# define WAITUNION	1	/* use "union wait" as wait argument type */
+# ifdef uniosb
+#  include <sys/time.h>
+#  define NEEDVPRINTF	1	/* need a replacement for vprintf(3) */
+#  define LA_TYPE	LA_INT
+#  define TZ_TYPE	TZ_TM_ZONE	/* use tm->tm_zone */
+# endif
+# ifdef luna2
+#  define LA_TYPE	LA_SUBR
+#  define TZ_TYPE	TZ_TM_ZONE	/* use tm->tm_zone */
+# endif
+# ifdef luna88k
+#  define HASSNPRINTF	1	/* has snprintf(3) and vsnprintf(3) */
+#  define LA_TYPE	LA_INT
+# endif
+# define SFS_TYPE	SFS_VFS /* use <sys/vfs.h> statfs() implementation */
+# define setpgid	setpgrp
+# undef WIFEXITED
+# undef WEXITSTATUS
+typedef int		pid_t;
+typedef int		(*sigfunc_t)();
+# define SIGFUNC_DEFINED
+# define SIGFUNC_RETURN	(0)
+# define SIGFUNC_DECL	int
+extern char	*getenv();
+extern int	errno;
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/lib/sendmail.cf"
+# endif
+#endif
+
+  
+/*
+**  NEC EWS-UX/V 4.2 (with /usr/ucb/cc)
+**
+**	From Motonori NAKAMURA <motonori@cs.ritsumei.ac.jp>.
+*/
+
+#if defined(nec_ews_svr4) || defined(_nec_ews_svr4)
+# ifndef __svr4__
+#  define __svr4__		/* use all System V Releae 4 defines below */
+# endif
+# define SYS5SIGNALS	1	/* SysV signal semantics -- reset on each sig */
+# define HASSETSID	1	/* has Posix setsid(2) call */
+# define LA_TYPE	LA_READKSYM	/* use MIOC_READSYM ioctl */
+# define SFS_TYPE	SFS_USTAT	/* use System V ustat(2) syscall */
+# define GIDSET_T	gid_t
+# undef WIFEXITED
+# undef WEXITSTATUS
+# define NAMELISTMASK	0x7fffffff	/* mask for nlist() values */
+# ifndef SYSLOG_BUFSIZE
+#  define SYSLOG_BUFSIZE	1024	/* allow full size syslog buffer */
+# endif
+#endif
+
+
+/*
+**  Fujitsu/ICL UXP/DS (For the DS/90 Series)
+**
+**	From Diego R. Lopez <drlopez@cica.es>.
+**	Additional changes from Fumio Moriya and Toshiaki Nomura of the
+**		Fujitsu Fresoftware gruop <dsfrsoft@oai6.yk.fujitsu.co.jp>.
+*/
+
+#ifdef __uxp__
+# include <arpa/nameser.h>
+# include <sys/sysmacros.h>
+# include <sys/mkdev.h>
+# define __svr4__
+# define HASGETUSERSHELL	0
+# define HASFLOCK		0
+# if UXPDS == 10
+#  define HASSNPRINTF		0	/* no snprintf(3) or vsnprintf(3) */
+# else
+#  define HASSNPRINTF		1	/* has snprintf(3) and vsnprintf(3) */
+# endif
+# define _PATH_UNIX		"/stand/unix"
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/ucblib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/usr/ucblib/sendmail.pid"
+# endif
+#endif
+
+/*
+**  Pyramid DC/OSx
+**
+**	From Earle Ake <akee@wpdis01.wpafb.af.mil>.
+*/
+
+#ifdef DCOSx
+# define GIDSET_T	gid_t
+# ifndef IDENTPROTO
+#  define IDENTPROTO	0	/* TCP/IP implementation is broken */
+# endif
+#endif
+
+/*
+**  Concurrent Computer Corporation Maxion
+**
+**	From Donald R. Laster Jr. <laster@access.digex.net>.
+*/
+
+#ifdef __MAXION__
+
+# include <sys/stream.h>
+# define __svr4__		1	/* SVR4.2MP */
+# define HASSETREUID		1	/* have setreuid(2) */
+# define HASLSTAT		1	/* have lstat(2) */
+# define HASSETRLIMIT		1	/* have setrlimit(2) */
+# define HASGETDTABLESIZE	1	/* have getdtablesize(2) */
+# define HASSNPRINTF		1	/* have snprintf(3) */
+# define HASGETUSERSHELL	1	/* have getusershell(3) */
+# define NOFTRUNCATE		1	/* do not have ftruncate(2) */
+# define SLEEP_T		unsigned
+# define SFS_TYPE		SFS_STATVFS
+# define SFS_BAVAIL		f_bavail
+# ifndef SYSLOG_BUFSIZE
+#  define SYSLOG_BUFSIZE	256	/* Use 256 bytes */
+# endif
+
+# undef WUNTRACED
+# undef WIFEXITED
+# undef WIFSIGNALED
+# undef WIFSTOPPED
+# undef WEXITSTATUS
+# undef WTERMSIG
+# undef WSTOPSIG
+
+#endif
+
+/*
+**  Harris Nighthawk PowerUX (nh6000 box)
+**
+**  Contributed by Bob Miorelli, Pratt & Whitney <miorelli@pweh.com>
+*/
+
+#ifdef _PowerUX
+# ifndef __svr4__
+#  define __svr4__
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/etc/mail/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/etc/mail/sendmail.pid"
+# endif
+# define SYSLOG_BUFSIZE		1024
+# define HASSNPRINTF		1	/* has snprintf(3) and vsnprintf(3) */
+# define LA_TYPE		LA_ZERO
+typedef struct msgb		mblk_t;
+# undef offsetof	/* avoid stddefs.h and sys/sysmacros.h conflict */
+#endif
+
+/*
+**  Siemens Nixdorf Informationssysteme AG SINIX 
+**
+**	Contributed by Gerald Rinske <Gerald.Rinske@mch.sni.de>
+**	of Siemens Business Services VAS.
+*/
+#ifdef _sinix_
+# define SYSLOG_BUFSIZE		1024
+#endif
+
+/**********************************************************************
+**  End of Per-Operating System defines
+**********************************************************************/
+/**********************************************************************
+**  More general defines
+**********************************************************************/
+
+/* general BSD defines */
+#ifdef BSD
+# define HASGETDTABLESIZE 1	/* has getdtablesize(2) call */
+# define HASSETREUID	1	/* has setreuid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# ifndef IP_SRCROUTE
+#  define IP_SRCROUTE	1	/* can check IP source routing */
+# endif
+# ifndef HASSETRLIMIT
+#  define HASSETRLIMIT	1	/* has setrlimit(2) call */
+# endif
+# ifndef HASFLOCK
+#  define HASFLOCK	1	/* has flock(2) call */
+# endif
+# ifndef TZ_TYPE
+#  define TZ_TYPE	TZ_TM_ZONE	/* use tm->tm_zone variable */
+# endif
+#endif
+
+/* general System V Release 4 defines */
+#ifdef __svr4__
+# define SYSTEM5	1
+# define USESETEUID	1	/* has useable seteuid(2) call */
+# define HASINITGROUPS	1	/* has initgroups(3) call */
+# define BSD_COMP	1	/* get BSD ioctl calls */
+# ifndef HASSETRLIMIT
+#  define HASSETRLIMIT	1	/* has setrlimit(2) call */
+# endif
+# ifndef HASGETUSERSHELL
+#  define HASGETUSERSHELL 0	/* does not have getusershell(3) call */
+# endif
+# ifndef HASFCHMOD
+#  define HASFCHMOD	1	/* most (all?) SVr4s seem to have fchmod(2) */
+# endif
+
+# ifndef _PATH_UNIX
+#  define _PATH_UNIX		"/unix"
+# endif
+# ifndef _PATH_VENDOR_CF
+#  define _PATH_VENDOR_CF	"/usr/ucblib/sendmail.cf"
+# endif
+# ifndef _PATH_SENDMAILPID
+#  define _PATH_SENDMAILPID	"/usr/ucblib/sendmail.pid"
+# endif
+# ifndef SYSLOG_BUFSIZE
+#  define SYSLOG_BUFSIZE	128
+# endif
+# ifndef SFS_TYPE
+#  define SFS_TYPE		SFS_STATVFS
+# endif
+
+# define USE_SIGLONGJMP	1	/* sigsetjmp needed for signal handling */
+#endif
+
+/* general System V defines */
+#ifdef SYSTEM5
+# include <sys/sysmacros.h>
+# define HASUNAME	1	/* use System V uname(2) system call */
+# define SYS5SETPGRP	1	/* use System V setpgrp(2) syscall */
+# define HASSETVBUF	1	/* we have setvbuf(3) in libc */
+# ifndef HASULIMIT
+#  define HASULIMIT	1	/* has the ulimit(2) syscall */
+# endif
+# ifndef LA_TYPE
+#  ifdef MIOC_READKSYM
+#   define LA_TYPE	LA_READKSYM	/* use MIOC_READKSYM ioctl */
+#  else
+#   define LA_TYPE	LA_INT		/* assume integer load average */
+#  endif
+# endif
+# ifndef SFS_TYPE
+#  define SFS_TYPE	SFS_USTAT	/* use System V ustat(2) syscall */
+# endif
+# ifndef TZ_TYPE
+#  define TZ_TYPE	TZ_TZNAME	/* use tzname[] vector */
+# endif
+# define bcopy(s, d, l)		(memmove((d), (s), (l)))
+# define bzero(d, l)		(memset((d), '\0', (l)))
+# define bcmp(s, d, l)		(memcmp((s), (d), (l)))
+#endif
+
+/* general POSIX defines */
+#ifdef _POSIX_VERSION
+# define HASSETSID	1	/* has Posix setsid(2) call */
+# define HASWAITPID	1	/* has Posix waitpid(2) call */
+# if _POSIX_VERSION >= 199500 && !defined(USESETEUID)
+#  define USESETEUID	1	/* has useable seteuid(2) call */
+# endif
+#endif
+/*
+**  Tweaking for systems that (for example) claim to be BSD or POSIX
+**  but don't have all the standard BSD or POSIX routines (boo hiss).
+*/
+
+#ifdef titan
+# undef HASINITGROUPS		/* doesn't have initgroups(3) call */
+#endif
+
+#ifdef _CRAYCOM
+# undef HASSETSID		/* despite POSIX claim, doesn't have setsid */
+#endif
+
+#ifdef ISC_UNIX
+# undef bcopy			/* despite SystemV claim, uses BSD bcopy */
+#endif
+
+#ifdef ALTOS_SYSTEM_V
+# undef bcopy			/* despite SystemV claim, uses BSD bcopy */
+# undef bzero			/* despite SystemV claim, uses BSD bzero */
+# undef bcmp			/* despite SystemV claim, uses BSD bcmp */
+#endif
+
+
+/*
+**  Due to a "feature" in some operating systems such as Ultrix 4.3 and
+**  HPUX 8.0, if you receive a "No route to host" message (ICMP message
+**  ICMP_UNREACH_HOST) on _any_ connection, all connections to that host
+**  are closed.  Some firewalls return this error if you try to connect
+**  to the IDENT port (113), so you can't receive email from these hosts
+**  on these systems.  The firewall really should use a more specific
+**  message such as ICMP_UNREACH_PROTOCOL or _PORT or _FILTER_PROHIB.  If
+**  not explicitly set to zero above, default it on.
+*/
+
+#ifndef IDENTPROTO
+# define IDENTPROTO	1	/* use IDENT proto (RFC 1413) */
+#endif
+
+#ifndef IP_SRCROUTE
+# define IP_SRCROUTE	1	/* Detect IP source routing */
+#endif
+
+#ifndef HASGETUSERSHELL
+# define HASGETUSERSHELL 1	/* libc has getusershell(3) call */
+#endif
+
+#ifndef NETUNIX
+# define NETUNIX	1	/* include unix domain support */
+#endif
+
+#ifndef HASFLOCK
+# define HASFLOCK	0	/* assume no flock(2) support */
+#endif
+
+#ifndef HASSETREUID
+# define HASSETREUID	0	/* assume no setreuid(2) call */
+#endif
+
+#ifndef HASFCHMOD
+# define HASFCHMOD	0	/* assume no fchmod(2) syscall */
+#endif
+
+#ifndef USESETEUID
+# define USESETEUID	0	/* assume no seteuid(2) call or no saved ids */
+#endif
+
+#ifndef HASSETRLIMIT
+# define HASSETRLIMIT	0	/* assume no setrlimit(2) support */
+#endif
+
+#ifndef HASULIMIT
+# define HASULIMIT	0	/* assume no ulimit(2) support */
+#endif
+
+#ifndef OLD_NEWDB
+# define OLD_NEWDB	0	/* assume newer version of newdb */
+#endif
+
+#ifndef SECUREWARE
+# define SECUREWARE	0	/* assume no SecureWare C2 auditing hooks */
+#endif
+
+#ifndef USE_SIGLONGJMP
+# define USE_SIGLONGJMP	0	/* assume setjmp handles signals properly */
+#endif
+
+#ifndef FDSET_CAST
+# define FDSET_CAST		/* (empty) cast for fd_set arg to select */
+#endif
+
+/*
+**  If no type for argument two of getgroups call is defined, assume
+**  it's an integer -- unfortunately, there seem to be several choices
+**  here.
+*/
+
+#ifndef GIDSET_T
+# define GIDSET_T	int
+#endif
+
+#ifndef UID_T
+# define UID_T		uid_t
+#endif
+
+#ifndef GID_T
+# define GID_T		gid_t
+#endif
+
+#ifndef SIZE_T
+# define SIZE_T		size_t
+#endif
+
+#ifndef MODE_T
+# define MODE_T		mode_t
+#endif
+
+#ifndef ARGV_T
+# define ARGV_T		char **
+#endif
+
+#ifndef SOCKADDR_LEN_T
+# define SOCKADDR_LEN_T	int
+#endif
+
+#ifndef SOCKOPT_LEN_T
+# define SOCKOPT_LEN_T	int
+#endif
+/**********************************************************************
+**  Remaining definitions should never have to be changed.  They are
+**  primarily to provide back compatibility for older systems -- for
+**  example, it includes some POSIX compatibility definitions
+**********************************************************************/
+
+/* System 5 compatibility */
+#ifndef S_ISREG
+# define S_ISREG(foo)	((foo & S_IFMT) == S_IFREG)
+#endif
+#ifndef S_ISDIR
+# define S_ISDIR(foo)	((foo & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISLNK) && defined(S_IFLNK)
+# define S_ISLNK(foo)	((foo & S_IFMT) == S_IFLNK)
+#endif
+#ifndef S_IRUSR
+# define S_IRUSR		0400
+#endif
+#ifndef S_IWUSR
+# define S_IWUSR		0200
+#endif
+#ifndef S_IRGRP
+# define S_IRGRP		0040
+#endif
+#ifndef S_IWGRP
+# define S_IWGRP		0020
+#endif
+#ifndef S_IROTH
+# define S_IROTH		0004
+#endif
+#ifndef S_IWOTH
+# define S_IWOTH		0002
+#endif
+
+/*
+**  Older systems don't have this error code -- it should be in
+**  /usr/include/sysexits.h.
+*/
+
+# ifndef EX_CONFIG
+# define EX_CONFIG	78	/* configuration error */
+# endif
+
+/* pseudo-code used in server SMTP */
+# define EX_QUIT	22	/* drop out of server immediately */
+
+/* pseudo-code used for mci_setstat */
+# define EX_NOTSTICKY	-5	/* don't save persistent status */
+
+
+/*
+**  An "impossible" file mode to indicate that the file does not exist.
+*/
+
+#define ST_MODE_NOFILE	0171147		/* unlikely to occur */
+
+
+/*
+**  These are used in a few cases where we need some special
+**  error codes, but where the system doesn't provide something
+**  reasonable.  They are printed in errstring.
+*/
+
+#ifndef E_PSEUDOBASE
+# define E_PSEUDOBASE	256
+#endif
+
+#define E_SM_OPENTIMEOUT (E_PSEUDOBASE + 0)	/* Timeout on file open */
+#define E_SM_NOSLINK	(E_PSEUDOBASE + 1)	/* Symbolic links not allowed */
+#define E_SM_NOHLINK	(E_PSEUDOBASE + 2)	/* Hard links not allowed */
+#define E_SM_REGONLY	(E_PSEUDOBASE + 3)	/* Regular files only */
+#define E_SM_ISEXEC	(E_PSEUDOBASE + 4)	/* Executable files not allowed */
+#define E_SM_WWDIR	(E_PSEUDOBASE + 5)	/* World writable directory */
+#define E_SM_GWDIR	(E_PSEUDOBASE + 6)	/* Group writable directory */
+#define E_SM_FILECHANGE (E_PSEUDOBASE + 7)	/* File changed after open */
+#define E_SM_WWFILE	(E_PSEUDOBASE + 8)	/* World writable file */
+#define E_SM_GWFILE	(E_PSEUDOBASE + 9)	/* Group writable file */
+#define E_DNSBASE	(E_PSEUDOBASE + 20)	/* base for DNS h_errno */
+
+/* type of arbitrary pointer */
+#ifndef ARBPTR_T
+# define ARBPTR_T	void *
+#endif
+
+#ifndef __P
+# include "cdefs.h"
+#endif
+
+#if NAMED_BIND && !defined(__ksr__)
+extern int	h_errno;
+#endif
+
+/*
+**  Do some required dependencies
+*/
+
+#if NETINET || NETISO
+# ifndef SMTP
+#  define SMTP		1	/* enable user and server SMTP */
+# endif
+# ifndef QUEUE
+#  define QUEUE		1	/* enable queueing */
+# endif
+# ifndef DAEMON
+#  define DAEMON	1	/* include the daemon (requires IPC & SMTP) */
+# endif
+#endif
+
+
+/*
+**  Arrange to use either varargs or stdargs
+*/
+
+# ifdef __STDC__
+
+# include <stdarg.h>
+
+# define VA_LOCAL_DECL	va_list ap;
+# define VA_START(f)	va_start(ap, f)
+# define VA_END		va_end(ap)
+
+# else
+
+# include <varargs.h>
+
+# define VA_LOCAL_DECL	va_list ap;
+# define VA_START(f)	va_start(ap)
+# define VA_END		va_end(ap)
+
+# endif
+
+#ifdef HASUNAME
+# include <sys/utsname.h>
+# ifdef newstr
+#  undef newstr
+# endif
+#else /* ! HASUNAME */
+# define NODE_LENGTH 32
+struct utsname
+{
+	char nodename[NODE_LENGTH+1];
+};
+#endif /* HASUNAME */
+
+#if !defined(MAXHOSTNAMELEN) && !defined(_SCO_unix_) && !defined(NonStop_UX_BXX) && !defined(ALTOS_SYSTEM_V)
+# define MAXHOSTNAMELEN	256
+#endif
+
+#if !defined(SIGCHLD) && defined(SIGCLD)
+# define SIGCHLD	SIGCLD
+#endif
+
+#ifndef STDIN_FILENO
+# define STDIN_FILENO	0
+#endif
+
+#ifndef STDOUT_FILENO
+# define STDOUT_FILENO	1
+#endif
+
+#ifndef STDERR_FILENO
+# define STDERR_FILENO	2
+#endif
+
+#ifndef LOCK_SH
+# define LOCK_SH	0x01	/* shared lock */
+# define LOCK_EX	0x02	/* exclusive lock */
+# define LOCK_NB	0x04	/* non-blocking lock */
+# define LOCK_UN	0x08	/* unlock */
+#endif
+
+#ifndef SEEK_SET
+# define SEEK_SET	0
+# define SEEK_CUR	1
+# define SEEK_END	2
+#endif
+
+#ifndef SIG_ERR
+# define SIG_ERR	((void (*)()) -1)
+#endif
+
+#ifndef WEXITSTATUS
+# define WEXITSTATUS(st)	(((st) >> 8) & 0377)
+#endif
+#ifndef WIFEXITED
+# define WIFEXITED(st)		(((st) & 0377) == 0)
+#endif
+
+#ifndef SIGFUNC_DEFINED
+typedef void		(*sigfunc_t) __P((int));
+#endif
+#ifndef SIGFUNC_RETURN
+# define SIGFUNC_RETURN
+#endif
+#ifndef SIGFUNC_DECL
+# define SIGFUNC_DECL	void
+#endif
+
+/* size of syslog buffer */
+#ifndef SYSLOG_BUFSIZE
+# define SYSLOG_BUFSIZE	1024
+#endif
+
+/*
+**  Size of tobuf (deliver.c)
+**	Tweak this to match your syslog implementation.  It will have to
+**	allow for the extra information printed.
+*/
+
+#ifndef TOBUFSIZE
+# if (SYSLOG_BUFSIZE) > 768
+#  define TOBUFSIZE	(SYSLOG_BUFSIZE - 512)
+# else
+#  define TOBUFSIZE	(SYSLOG_BUFSIZE / 2)
+# endif
+#endif
+
+/* TOBUFSIZE must never be permitted to exceed MAXLINE - 128 */
+#if TOBUFSIZE > (MAXLINE - 128)
+# undef TOBUFSIZE
+# define TOBUFSIZE	(MAXLINE - 128)
+#endif
+
+/*
+**  Size of prescan buffer.
+**	Despite comments in the _sendmail_ book, this probably should
+**	not be changed; there are some hard-to-define dependencies.
+*/
+
+# define PSBUFSIZE	(MAXNAME + MAXATOM)	/* size of prescan buffer */
+
+/* fork routine -- set above using #ifdef _osname_ or in Makefile */
+# ifndef FORK
+# define FORK		fork		/* function to call to fork mailer */
+# endif
+
+/*
+**  Default to using scanf in readcf.
+*/
+
+#ifndef SCANF
+# define SCANF		1
+#endif
+
+/*
+**  SVr4 and similar systems use different routines for setjmp/longjmp
+**  with signal support
+*/
+
+#if USE_SIGLONGJMP
+# ifdef jmp_buf
+#  undef jmp_buf
+# endif
+# define jmp_buf		sigjmp_buf
+# ifdef setjmp
+#  undef setjmp
+# endif
+# define setjmp(env)		sigsetjmp(env, 1)
+# ifdef longjmp
+#  undef longjmp
+# endif
+# define longjmp(env, val)	siglongjmp(env, val)
+#endif
+
+#if !defined(NGROUPS_MAX) && defined(NGROUPS)
+# define NGROUPS_MAX	NGROUPS		/* POSIX naming convention */
+#endif
+
+/*
+**  If we don't have a system syslog, simulate it.
+*/
+
+#if !LOG
+# define LOG_EMERG	0	/* system is unusable */
+# define LOG_ALERT	1	/* action must be taken immediately */
+# define LOG_CRIT	2	/* critical conditions */
+# define LOG_ERR	3	/* error conditions */
+# define LOG_WARNING	4	/* warning conditions */
+# define LOG_NOTICE	5	/* normal but significant condition */
+# define LOG_INFO	6	/* informational */
+# define LOG_DEBUG	7	/* debug-level messages */
+#endif
diff --git a/src/convtime.c b/src/convtime.c
new file mode 100644
index 0000000..5ca1b39
--- /dev/null
+++ b/src/convtime.c
@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)convtime.c	8.9 (Berkeley) 2/1/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+/*
+**  CONVTIME -- convert time
+**
+**	Takes a time as an ascii string with a trailing character
+**	giving units:
+**	  s -- seconds
+**	  m -- minutes
+**	  h -- hours
+**	  d -- days (default)
+**	  w -- weeks
+**	For example, "3d12h" is three and a half days.
+**
+**	Parameters:
+**		p -- pointer to ascii time.
+**		units -- default units if none specified.
+**
+**	Returns:
+**		time in seconds.
+**
+**	Side Effects:
+**		none.
+*/
+
+time_t
+convtime(p, units)
+	char *p;
+	char units;
+{
+	register time_t t, r;
+	register char c;
+
+	r = 0;
+	while (*p != '\0')
+	{
+		t = 0;
+		while ((c = *p++) != '\0' && isascii(c) && isdigit(c))
+			t = t * 10 + (c - '0');
+		if (c == '\0')
+		{
+			c = units;
+			p--;
+		}
+		else if (strchr("wdhms", c) == NULL)
+		{
+			usrerr("Invalid time unit `%c'", c);
+			c = units;
+		}
+		switch (c)
+		{
+		  case 'w':		/* weeks */
+			t *= 7;
+
+		  case 'd':		/* days */
+		  default:
+			t *= 24;
+
+		  case 'h':		/* hours */
+			t *= 60;
+
+		  case 'm':		/* minutes */
+			t *= 60;
+
+		  case 's':		/* seconds */
+			break;
+		}
+		r += t;
+	}
+
+	return (r);
+}
+/*
+**  PINTVL -- produce printable version of a time interval
+**
+**	Parameters:
+**		intvl -- the interval to be converted
+**		brief -- if TRUE, print this in an extremely compact form
+**			(basically used for logging).
+**
+**	Returns:
+**		A pointer to a string version of intvl suitable for
+**			printing or framing.
+**
+**	Side Effects:
+**		none.
+**
+**	Warning:
+**		The string returned is in a static buffer.
+*/
+
+# define PLURAL(n)	((n) == 1 ? "" : "s")
+
+char *
+pintvl(intvl, brief)
+	time_t intvl;
+	bool brief;
+{
+	static char buf[256];
+	register char *p;
+	int wk, dy, hr, mi, se;
+
+	if (intvl == 0 && !brief)
+		return ("zero seconds");
+
+	/* decode the interval into weeks, days, hours, minutes, seconds */
+	se = intvl % 60;
+	intvl /= 60;
+	mi = intvl % 60;
+	intvl /= 60;
+	hr = intvl % 24;
+	intvl /= 24;
+	if (brief)
+	{
+		dy = intvl;
+		wk = 0;
+	}
+	else
+	{
+		dy = intvl % 7;
+		intvl /= 7;
+		wk = intvl;
+	}
+
+	/* now turn it into a sexy form */
+	p = buf;
+	if (brief)
+	{
+		if (dy > 0)
+		{
+			(void) snprintf(p, SPACELEFT(buf, p), "%d+", dy);
+			p += strlen(p);
+		}
+		(void) snprintf(p, SPACELEFT(buf, p), "%02d:%02d:%02d",
+			hr, mi, se);
+		return (buf);
+	}
+
+	/* use the verbose form */
+	if (wk > 0)
+	{
+		(void) snprintf(p, SPACELEFT(buf, p), ", %d week%s", wk, PLURAL(wk));
+		p += strlen(p);
+	}
+	if (dy > 0)
+	{
+		(void) snprintf(p, SPACELEFT(buf, p), ", %d day%s", dy, PLURAL(dy));
+		p += strlen(p);
+	}
+	if (hr > 0)
+	{
+		(void) snprintf(p, SPACELEFT(buf, p), ", %d hour%s", hr, PLURAL(hr));
+		p += strlen(p);
+	}
+	if (mi > 0)
+	{
+		(void) snprintf(p, SPACELEFT(buf, p), ", %d minute%s", mi, PLURAL(mi));
+		p += strlen(p);
+	}
+	if (se > 0)
+	{
+		(void) snprintf(p, SPACELEFT(buf, p), ", %d second%s", se, PLURAL(se));
+		p += strlen(p);
+	}
+
+	return (buf + 2);
+}
diff --git a/src/daemon.c b/src/daemon.c
new file mode 100644
index 0000000..e62aaf1
--- /dev/null
+++ b/src/daemon.c
@@ -0,0 +1,2032 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include "sendmail.h"
+
+#ifndef lint
+#ifdef DAEMON
+static char sccsid[] = "@(#)daemon.c	8.195 (Berkeley) 10/23/97 (with daemon mode)";
+#else
+static char sccsid[] = "@(#)daemon.c	8.195 (Berkeley) 10/23/97 (without daemon mode)";
+#endif
+#endif /* not lint */
+
+#if defined(SOCK_STREAM) || defined(__GNU_LIBRARY__)
+# define USE_SOCK_STREAM	1
+#endif
+
+#if DAEMON || defined(USE_SOCK_STREAM)
+# include <arpa/inet.h>
+# if NAMED_BIND
+#  include <resolv.h>
+#  ifndef NO_DATA
+#   define NO_DATA	NO_ADDRESS
+#  endif
+# endif
+#endif
+
+#if DAEMON
+
+# include <sys/time.h>
+
+# if IP_SRCROUTE
+#  include <netinet/in_systm.h>
+#  include <netinet/ip.h>
+#  include <netinet/ip_var.h>
+# endif
+
+/*
+**  DAEMON.C -- routines to use when running as a daemon.
+**
+**	This entire file is highly dependent on the 4.2 BSD
+**	interprocess communication primitives.  No attempt has
+**	been made to make this file portable to Version 7,
+**	Version 6, MPX files, etc.  If you should try such a
+**	thing yourself, I recommend chucking the entire file
+**	and starting from scratch.  Basic semantics are:
+**
+**	getrequests(e)
+**		Opens a port and initiates a connection.
+**		Returns in a child.  Must set InChannel and
+**		OutChannel appropriately.
+**	clrdaemon()
+**		Close any open files associated with getting
+**		the connection; this is used when running the queue,
+**		etc., to avoid having extra file descriptors during
+**		the queue run and to avoid confusing the network
+**		code (if it cares).
+**	makeconnection(host, port, outfile, infile, e)
+**		Make a connection to the named host on the given
+**		port.  Set *outfile and *infile to the files
+**		appropriate for communication.  Returns zero on
+**		success, else an exit status describing the
+**		error.
+**	host_map_lookup(map, hbuf, avp, pstat)
+**		Convert the entry in hbuf into a canonical form.
+*/
+/*
+**  GETREQUESTS -- open mail IPC port and get requests.
+**
+**	Parameters:
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Waits until some interesting activity occurs.  When
+**		it does, a child is created to process it, and the
+**		parent waits for completion.  Return from this
+**		routine is always in the child.  The file pointers
+**		"InChannel" and "OutChannel" should be set to point
+**		to the communication channel.
+*/
+
+int		DaemonSocket	= -1;		/* fd describing socket */
+SOCKADDR	DaemonAddr;			/* socket for incoming */
+int		ListenQueueSize = 10;		/* size of listen queue */
+int		TcpRcvBufferSize = 0;		/* size of TCP receive buffer */
+int		TcpSndBufferSize = 0;		/* size of TCP send buffer */
+
+void
+getrequests(e)
+	ENVELOPE *e;
+{
+	int t;
+	bool refusingconnections = TRUE;
+	FILE *pidf;
+	int socksize;
+	u_short port;
+#if XDEBUG
+	bool j_has_dot;
+#endif
+	extern void reapchild();
+	extern int opendaemonsocket __P((bool));
+
+	/*
+	**  Set up the address for the mailer.
+	*/
+
+	switch (DaemonAddr.sa.sa_family)
+	{
+	  case AF_UNSPEC:
+		DaemonAddr.sa.sa_family = AF_INET;
+		/* fall through ... */
+
+	  case AF_INET:
+		if (DaemonAddr.sin.sin_addr.s_addr == 0)
+			DaemonAddr.sin.sin_addr.s_addr = INADDR_ANY;
+		port = DaemonAddr.sin.sin_port;
+		break;
+
+	  default:
+		/* unknown protocol */
+		port = 0;
+		break;
+	}
+	if (port == 0)
+	{
+		register struct servent *sp;
+
+		sp = getservbyname("smtp", "tcp");
+		if (sp == NULL)
+		{
+			syserr("554 service \"smtp\" unknown");
+			port = htons(25);
+		}
+		else
+			port = sp->s_port;
+	}
+
+	switch (DaemonAddr.sa.sa_family)
+	{
+	  case AF_INET:
+		DaemonAddr.sin.sin_port = port;
+		break;
+
+	  default:
+		/* unknown protocol */
+		break;
+	}
+
+	/*
+	**  Try to actually open the connection.
+	*/
+
+	if (tTd(15, 1))
+		printf("getrequests: port 0x%x\n", port);
+
+	/* get a socket for the SMTP connection */
+	socksize = opendaemonsocket(TRUE);
+
+	(void) setsignal(SIGCHLD, reapchild);
+
+	/* write the pid to the log file for posterity */
+	pidf = safefopen(PidFile, O_WRONLY|O_TRUNC, 0644,
+			 SFF_NOLINK|SFF_ROOTOK|SFF_REGONLY|SFF_CREAT);
+	if (pidf == NULL)
+	{
+		sm_syslog(LOG_ERR, NOQID, "unable to write %s", PidFile);
+	}
+	else
+	{
+		extern char *CommandLineArgs;
+
+		/* write the process id on line 1 */
+		fprintf(pidf, "%ld\n", (long) getpid());
+
+		/* line 2 contains all command line flags */
+		fprintf(pidf, "%s\n", CommandLineArgs);
+
+		/* flush and close */
+		fclose(pidf);
+	}
+
+#if XDEBUG
+	{
+		char jbuf[MAXHOSTNAMELEN];
+
+		expand("\201j", jbuf, sizeof jbuf, e);
+		j_has_dot = strchr(jbuf, '.') != NULL;
+	}
+#endif
+
+	if (tTd(15, 1))
+		printf("getrequests: %d\n", DaemonSocket);
+
+	for (;;)
+	{
+		register pid_t pid;
+		auto SOCKADDR_LEN_T lotherend;
+		int savederrno;
+		int pipefd[2];
+		extern bool refuseconnections();
+
+		/* see if we are rejecting connections */
+		(void) blocksignal(SIGALRM);
+		if (refuseconnections(ntohs(port)))
+		{
+			if (DaemonSocket >= 0)
+			{
+				/* close socket so peer will fail quickly */
+				(void) close(DaemonSocket);
+				DaemonSocket = -1;
+			}
+			refusingconnections = TRUE;
+			sleep(15);
+			continue;
+		}
+
+		/* arrange to (re)open the socket if necessary */
+		if (refusingconnections)
+		{
+			(void) opendaemonsocket(FALSE);
+			refusingconnections = FALSE;
+		}
+
+#if XDEBUG
+		/* check for disaster */
+		{
+			char jbuf[MAXHOSTNAMELEN];
+			extern void dumpstate __P((char *));
+
+			expand("\201j", jbuf, sizeof jbuf, e);
+			if (!wordinclass(jbuf, 'w'))
+			{
+				dumpstate("daemon lost $j");
+				sm_syslog(LOG_ALERT, NOQID,
+					"daemon process doesn't have $j in $=w; see syslog");
+				abort();
+			}
+			else if (j_has_dot && strchr(jbuf, '.') == NULL)
+			{
+				dumpstate("daemon $j lost dot");
+				sm_syslog(LOG_ALERT, NOQID,
+					"daemon process $j lost dot; see syslog");
+				abort();
+			}
+		}
+#endif
+
+		/* wait for a connection */
+		setproctitle("accepting connections on port %d",
+			     ntohs(port));
+#if 0
+		/*
+		**  Andrew Sun <asun@ieps-sun.ml.com> claims that this will
+		**  fix the SVr4 problem.  But it seems to have gone away,
+		**  so is it worth doing this?
+		*/
+
+		if (SetNonBlocking(DaemonSocket, FALSE) < 0)
+			log an error here;
+#endif
+		(void) releasesignal(SIGALRM);
+		for (;;)
+		{
+			fd_set readfds;
+			struct timeval timeout;
+
+			FD_ZERO(&readfds);
+			FD_SET(DaemonSocket, &readfds);
+			timeout.tv_sec = 60;
+			timeout.tv_usec = 0;
+
+			t = select(DaemonSocket + 1, FDSET_CAST &readfds,
+				   NULL, NULL, &timeout);
+			if (DoQueueRun)
+				(void) runqueue(TRUE, FALSE);
+			if (t <= 0 || !FD_ISSET(DaemonSocket, &readfds))
+				continue;
+
+			errno = 0;
+			lotherend = socksize;
+			t = accept(DaemonSocket,
+			    (struct sockaddr *)&RealHostAddr, &lotherend);
+			if (t >= 0 || errno != EINTR)
+				break;
+		}
+		savederrno = errno;
+		(void) blocksignal(SIGALRM);
+		if (t < 0)
+		{
+			errno = savederrno;
+			syserr("getrequests: accept");
+
+			/* arrange to re-open the socket next time around */
+			(void) close(DaemonSocket);
+			DaemonSocket = -1;
+			refusingconnections = TRUE;
+			sleep(5);
+			continue;
+		}
+
+		/*
+		**  Create a subprocess to process the mail.
+		*/
+
+		if (tTd(15, 2))
+			printf("getrequests: forking (fd = %d)\n", t);
+
+		/*
+		**  Create a pipe to keep the child from writing to the
+		**  socket until after the parent has closed it.  Otherwise
+		**  the parent may hang if the child has closed it first.
+		*/
+
+		if (pipe(pipefd) < 0)
+			pipefd[0] = pipefd[1] = -1;
+
+		blocksignal(SIGCHLD);
+		pid = fork();
+		if (pid < 0)
+		{
+			syserr("daemon: cannot fork");
+			if (pipefd[0] != -1)
+			{
+				(void) close(pipefd[0]);
+				(void) close(pipefd[1]);
+			}
+			(void) releasesignal(SIGCHLD);
+			sleep(10);
+			(void) close(t);
+			continue;
+		}
+
+		if (pid == 0)
+		{
+			char *p;
+			extern SIGFUNC_DECL intsig __P((int));
+			FILE *inchannel, *outchannel;
+
+			/*
+			**  CHILD -- return to caller.
+			**	Collect verified idea of sending host.
+			**	Verify calling user id if possible here.
+			*/
+
+			(void) releasesignal(SIGALRM);
+			(void) releasesignal(SIGCHLD);
+			(void) setsignal(SIGCHLD, SIG_DFL);
+			(void) setsignal(SIGHUP, intsig);
+			(void) close(DaemonSocket);
+			proc_list_clear();
+
+			/* don't schedule queue runs if we are told to ETRN */
+			QueueIntvl = 0;
+
+			setproctitle("startup with %s",
+				anynet_ntoa(&RealHostAddr));
+
+			if (pipefd[0] != -1)
+			{
+				auto char c;
+
+				/*
+				**  Wait for the parent to close the write end
+				**  of the pipe, which we will see as an EOF.
+				**  This guarantees that we won't write to the
+				**  socket until after the parent has closed
+				**  the pipe.
+				*/
+
+				/* close the write end of the pipe */
+				(void) close(pipefd[1]);
+
+				/* we shouldn't be interrupted, but ... */
+				while (read(pipefd[0], &c, 1) < 0 &&
+				       errno == EINTR)
+					continue;
+				(void) close(pipefd[0]);
+			}
+
+			/* determine host name */
+			p = hostnamebyanyaddr(&RealHostAddr);
+			if (strlen(p) > (SIZE_T) MAXNAME)
+				p[MAXNAME] = '\0';
+			RealHostName = newstr(p);
+			setproctitle("startup with %s", p);
+
+			if ((inchannel = fdopen(t, "r")) == NULL ||
+			    (t = dup(t)) < 0 ||
+			    (outchannel = fdopen(t, "w")) == NULL)
+			{
+				syserr("cannot open SMTP server channel, fd=%d", t);
+				exit(0);
+			}
+
+			InChannel = inchannel;
+			OutChannel = outchannel;
+			DisConnected = FALSE;
+
+			/* open maps for check_relay ruleset */
+			initmaps(FALSE, e);
+
+#ifdef XLA
+			if (!xla_host_ok(RealHostName))
+			{
+				message("421 Too many SMTP sessions for this host");
+				exit(0);
+			}
+#endif
+
+			break;
+		}
+
+		/* parent -- keep track of children */
+		proc_list_add(pid);
+		(void) releasesignal(SIGCHLD);
+
+		/* close the read end of the synchronization pipe */
+		if (pipefd[0] != -1)
+			(void) close(pipefd[0]);
+
+		/* close the port so that others will hang (for a while) */
+		(void) close(t);
+
+		/* release the child by closing the read end of the sync pipe */
+		if (pipefd[1] != -1)
+			(void) close(pipefd[1]);
+	}
+	if (tTd(15, 2))
+		printf("getreq: returning\n");
+	return;
+}
+/*
+**  OPENDAEMONSOCKET -- open the SMTP socket
+**
+**	Deals with setting all appropriate options.  DaemonAddr must
+**	be set up in advance.
+**
+**	Parameters:
+**		firsttime -- set if this is the initial open.
+**
+**	Returns:
+**		Size in bytes of the daemon socket addr.
+**
+**	Side Effects:
+**		Leaves DaemonSocket set to the open socket.
+**		Exits if the socket cannot be created.
+*/
+
+#define MAXOPENTRIES	10	/* maximum number of tries to open connection */
+
+int
+opendaemonsocket(firsttime)
+	bool firsttime;
+{
+	int on = 1;
+	int socksize = 0;
+	int ntries = 0;
+	int saveerrno;
+
+	if (tTd(15, 2))
+		printf("opendaemonsocket()\n");
+
+	do
+	{
+		if (ntries > 0)
+			sleep(5);
+		if (firsttime || DaemonSocket < 0)
+		{
+			DaemonSocket = socket(DaemonAddr.sa.sa_family, SOCK_STREAM, 0);
+			if (DaemonSocket < 0)
+			{
+				saveerrno = errno;
+				syserr("opendaemonsocket: can't create server SMTP socket");
+			  severe:
+				if (LogLevel > 0)
+					sm_syslog(LOG_ALERT, NOQID,
+						"problem creating SMTP socket");
+				DaemonSocket = -1;
+				continue;
+			}
+
+			/* turn on network debugging? */
+			if (tTd(15, 101))
+				(void) setsockopt(DaemonSocket, SOL_SOCKET,
+						  SO_DEBUG, (char *)&on,
+						  sizeof on);
+
+			(void) setsockopt(DaemonSocket, SOL_SOCKET,
+					  SO_REUSEADDR, (char *)&on, sizeof on);
+			(void) setsockopt(DaemonSocket, SOL_SOCKET,
+					  SO_KEEPALIVE, (char *)&on, sizeof on);
+
+#ifdef SO_RCVBUF
+			if (TcpRcvBufferSize > 0)
+			{
+				if (setsockopt(DaemonSocket, SOL_SOCKET,
+					       SO_RCVBUF,
+					       (char *) &TcpRcvBufferSize,
+					       sizeof(TcpRcvBufferSize)) < 0)
+					syserr("opendaemonsocket: setsockopt(SO_RCVBUF)");
+			}
+#endif
+
+			switch (DaemonAddr.sa.sa_family)
+			{
+# if NETINET
+			  case AF_INET:
+				socksize = sizeof DaemonAddr.sin;
+				break;
+# endif
+
+# if NETISO
+			  case AF_ISO:
+				socksize = sizeof DaemonAddr.siso;
+				break;
+# endif
+
+			  default:
+				socksize = sizeof DaemonAddr;
+				break;
+			}
+
+			if (bind(DaemonSocket, &DaemonAddr.sa, socksize) < 0)
+			{
+				/* probably another daemon already */
+				saveerrno = errno;
+				syserr("opendaemonsocket: cannot bind");
+				(void) close(DaemonSocket);
+				goto severe;
+			}
+		}
+		if (!firsttime && listen(DaemonSocket, ListenQueueSize) < 0)
+		{
+			saveerrno = errno;
+			syserr("opendaemonsocket: cannot listen");
+			(void) close(DaemonSocket);
+			goto severe;
+		}
+		return socksize;
+	} while (ntries++ < MAXOPENTRIES && transienterror(saveerrno));
+	syserr("!opendaemonsocket: server SMTP socket wedged: exiting");
+	finis();
+	return -1;  /* avoid compiler warning on IRIX */
+}
+/*
+**  CLRDAEMON -- reset the daemon connection
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		releases any resources used by the passive daemon.
+*/
+
+void
+clrdaemon()
+{
+	if (DaemonSocket >= 0)
+		(void) close(DaemonSocket);
+	DaemonSocket = -1;
+}
+/*
+**  SETDAEMONOPTIONS -- set options for running the daemon
+**
+**	Parameters:
+**		p -- the options line.
+**
+**	Returns:
+**		none.
+*/
+
+void
+setdaemonoptions(p)
+	register char *p;
+{
+	if (DaemonAddr.sa.sa_family == AF_UNSPEC)
+		DaemonAddr.sa.sa_family = AF_INET;
+
+	while (p != NULL)
+	{
+		register char *f;
+		register char *v;
+
+		while (isascii(*p) && isspace(*p))
+			p++;
+		if (*p == '\0')
+			break;
+		f = p;
+		p = strchr(p, ',');
+		if (p != NULL)
+			*p++ = '\0';
+		v = strchr(f, '=');
+		if (v == NULL)
+			continue;
+		while (isascii(*++v) && isspace(*v))
+			continue;
+		if (isascii(*f) && islower(*f))
+			*f = toupper(*f);
+
+		switch (*f)
+		{
+		  case 'F':		/* address family */
+			if (isascii(*v) && isdigit(*v))
+				DaemonAddr.sa.sa_family = atoi(v);
+#if NETINET
+			else if (strcasecmp(v, "inet") == 0)
+				DaemonAddr.sa.sa_family = AF_INET;
+#endif
+#if NETISO
+			else if (strcasecmp(v, "iso") == 0)
+				DaemonAddr.sa.sa_family = AF_ISO;
+#endif
+#if NETNS
+			else if (strcasecmp(v, "ns") == 0)
+				DaemonAddr.sa.sa_family = AF_NS;
+#endif
+#if NETX25
+			else if (strcasecmp(v, "x.25") == 0)
+				DaemonAddr.sa.sa_family = AF_CCITT;
+#endif
+			else
+				syserr("554 Unknown address family %s in Family=option", v);
+			break;
+
+		  case 'A':		/* address */
+			switch (DaemonAddr.sa.sa_family)
+			{
+#if NETINET
+			  case AF_INET:
+				if (isascii(*v) && isdigit(*v))
+					DaemonAddr.sin.sin_addr.s_addr = inet_addr(v);
+				else
+				{
+					register struct hostent *hp;
+
+					hp = sm_gethostbyname(v);
+					if (hp == NULL)
+						syserr("554 host \"%s\" unknown", v);
+					else
+						bcopy(hp->h_addr, &DaemonAddr.sin.sin_addr, INADDRSZ);
+				}
+				break;
+#endif
+
+			  default:
+				syserr("554 Address= option unsupported for family %d",
+					DaemonAddr.sa.sa_family);
+				break;
+			}
+			break;
+
+		  case 'P':		/* port */
+			switch (DaemonAddr.sa.sa_family)
+			{
+#if NETISO
+				short port;
+#endif
+
+#if NETINET
+			  case AF_INET:
+				if (isascii(*v) && isdigit(*v))
+					DaemonAddr.sin.sin_port = htons(atoi(v));
+				else
+				{
+					register struct servent *sp;
+
+					sp = getservbyname(v, "tcp");
+					if (sp == NULL)
+						syserr("554 service \"%s\" unknown", v);
+					else
+						DaemonAddr.sin.sin_port = sp->s_port;
+				}
+				break;
+#endif
+
+#if NETISO
+			  case AF_ISO:
+				/* assume two byte transport selector */
+				if (isascii(*v) && isdigit(*v))
+					port = htons(atoi(v));
+				else
+				{
+					register struct servent *sp;
+
+					sp = getservbyname(v, "tcp");
+					if (sp == NULL)
+						syserr("554 service \"%s\" unknown", v);
+					else
+						port = sp->s_port;
+				}
+				bcopy((char *) &port, TSEL(&DaemonAddr.siso), 2);
+				break;
+#endif
+
+			  default:
+				syserr("554 Port= option unsupported for family %d",
+					DaemonAddr.sa.sa_family);
+				break;
+			}
+			break;
+
+		  case 'L':		/* listen queue size */
+			ListenQueueSize = atoi(v);
+			break;
+
+		  case 'S':		/* send buffer size */
+			TcpSndBufferSize = atoi(v);
+			break;
+
+		  case 'R':		/* receive buffer size */
+			TcpRcvBufferSize = atoi(v);
+			break;
+
+		  default:
+			syserr("554 DaemonPortOptions parameter \"%s\" unknown", f);
+		}
+	}
+}
+/*
+**  MAKECONNECTION -- make a connection to an SMTP socket on another machine.
+**
+**	Parameters:
+**		host -- the name of the host.
+**		port -- the port number to connect to.
+**		mci -- a pointer to the mail connection information
+**			structure to be filled in.
+**		e -- the current envelope.
+**
+**	Returns:
+**		An exit code telling whether the connection could be
+**			made and if not why not.
+**
+**	Side Effects:
+**		none.
+*/
+
+static jmp_buf	CtxConnectTimeout;
+
+static void
+connecttimeout()
+{
+	errno = ETIMEDOUT;
+	longjmp(CtxConnectTimeout, 1);
+}
+
+SOCKADDR	CurHostAddr;		/* address of current host */
+
+int
+makeconnection(host, port, mci, e)
+	char *host;
+	u_short port;
+	register MCI *mci;
+	ENVELOPE *e;
+{
+	register volatile int addrno = 0;
+	register volatile int s;
+	register struct hostent *volatile hp = (struct hostent *)NULL;
+	SOCKADDR addr;
+	int sav_errno;
+	volatile int addrlen;
+	volatile bool firstconnect;
+	EVENT *volatile ev = NULL;
+
+	/*
+	**  Set up the address for the mailer.
+	**	Accept "[a.b.c.d]" syntax for host name.
+	*/
+
+#if NAMED_BIND
+	h_errno = 0;
+#endif
+	errno = 0;
+	bzero(&CurHostAddr, sizeof CurHostAddr);
+	SmtpPhase = mci->mci_phase = "initial connection";
+	CurHostName = host;
+
+	if (host[0] == '[')
+	{
+		long hid;
+		register char *p = strchr(host, ']');
+
+		if (p != NULL)
+		{
+			*p = '\0';
+#if NETINET
+			hid = inet_addr(&host[1]);
+			if (hid == INADDR_NONE)
+#endif
+			{
+				/* try it as a host name (avoid MX lookup) */
+				hp = sm_gethostbyname(&host[1]);
+				if (hp == NULL && p[-1] == '.')
+				{
+#if NAMED_BIND
+					int oldopts = _res.options;
+
+					_res.options &= ~(RES_DEFNAMES|RES_DNSRCH);
+#endif
+					p[-1] = '\0';
+					hp = sm_gethostbyname(&host[1]);
+					p[-1] = '.';
+#if NAMED_BIND
+					_res.options = oldopts;
+#endif
+				}
+				*p = ']';
+				goto gothostent;
+			}
+			*p = ']';
+		}
+		if (p == NULL)
+		{
+			extern char MsgBuf[];
+
+			usrerr("553 Invalid numeric domain spec \"%s\"", host);
+			mci_setstat(mci, EX_NOHOST, "5.1.2", MsgBuf);
+			return EX_NOHOST;
+		}
+#if NETINET
+		addr.sin.sin_family = AF_INET;		/*XXX*/
+		addr.sin.sin_addr.s_addr = hid;
+#endif
+	}
+	else
+	{
+		/* contortion to get around SGI cc complaints */
+		{
+			register char *p = &host[strlen(host) - 1];
+
+			hp = sm_gethostbyname(host);
+			if (hp == NULL && *p == '.')
+			{
+#if NAMED_BIND
+				int oldopts = _res.options;
+
+				_res.options &= ~(RES_DEFNAMES|RES_DNSRCH);
+#endif
+				*p = '\0';
+				hp = sm_gethostbyname(host);
+				*p = '.';
+#if NAMED_BIND
+				_res.options = oldopts;
+#endif
+			}
+		}
+gothostent:
+		if (hp == NULL)
+		{
+#if NAMED_BIND
+			/* check for name server timeouts */
+			if (errno == ETIMEDOUT || h_errno == TRY_AGAIN ||
+			    (errno == ECONNREFUSED && UseNameServer))
+			{
+				mci_setstat(mci, EX_TEMPFAIL, "4.4.3", NULL);
+				return EX_TEMPFAIL;
+			}
+#endif
+			mci_setstat(mci, EX_NOHOST, "5.1.2", NULL);
+			return (EX_NOHOST);
+		}
+		addr.sa.sa_family = hp->h_addrtype;
+		switch (hp->h_addrtype)
+		{
+#if NETINET
+		  case AF_INET:
+			bcopy(hp->h_addr,
+				&addr.sin.sin_addr,
+				INADDRSZ);
+			break;
+#endif
+
+		  default:
+			bcopy(hp->h_addr,
+				addr.sa.sa_data,
+				hp->h_length);
+			break;
+		}
+		addrno = 1;
+	}
+
+	/*
+	**  Determine the port number.
+	*/
+
+	if (port == 0)
+	{
+		register struct servent *sp = getservbyname("smtp", "tcp");
+
+		if (sp == NULL)
+		{
+			if (LogLevel > 2)
+				sm_syslog(LOG_ERR, NOQID,
+					"makeconnection: service \"smtp\" unknown");
+			port = htons(25);
+		}
+		else
+			port = sp->s_port;
+	}
+
+	switch (addr.sa.sa_family)
+	{
+#if NETINET
+	  case AF_INET:
+		addr.sin.sin_port = port;
+		addrlen = sizeof (struct sockaddr_in);
+		break;
+#endif
+
+#if NETISO
+	  case AF_ISO:
+		/* assume two byte transport selector */
+		bcopy((char *) &port, TSEL((struct sockaddr_iso *) &addr), 2);
+		addrlen = sizeof (struct sockaddr_iso);
+		break;
+#endif
+
+	  default:
+		syserr("Can't connect to address family %d", addr.sa.sa_family);
+		mci_setstat(mci, EX_NOHOST, "5.1.2", NULL);
+		return (EX_NOHOST);
+	}
+
+	/*
+	**  Try to actually open the connection.
+	*/
+
+#ifdef XLA
+	/* if too many connections, don't bother trying */
+	if (!xla_noqueue_ok(host))
+		return EX_TEMPFAIL;
+#endif
+
+	firstconnect = TRUE;
+	for (;;)
+	{
+		if (tTd(16, 1))
+			printf("makeconnection (%s [%s])\n",
+				host, anynet_ntoa(&addr));
+
+		/* save for logging */
+		CurHostAddr = addr;
+
+		if (bitnset(M_SECURE_PORT, mci->mci_mailer->m_flags))
+		{
+			int rport = IPPORT_RESERVED - 1;
+
+			s = rresvport(&rport);
+		}
+		else
+		{
+			s = socket(addr.sa.sa_family, SOCK_STREAM, 0);
+		}
+		if (s < 0)
+		{
+			sav_errno = errno;
+			syserr("makeconnection: cannot create socket");
+#ifdef XLA
+			xla_host_end(host);
+#endif
+			mci_setstat(mci, EX_TEMPFAIL, "4.4.5", NULL);
+			return EX_TEMPFAIL;
+		}
+
+#ifdef SO_SNDBUF
+		if (TcpSndBufferSize > 0)
+		{
+			if (setsockopt(s, SOL_SOCKET, SO_SNDBUF,
+				       (char *) &TcpSndBufferSize,
+				       sizeof(TcpSndBufferSize)) < 0)
+				syserr("makeconnection: setsockopt(SO_SNDBUF)");
+		}
+#endif
+
+		if (tTd(16, 1))
+			printf("makeconnection: fd=%d\n", s);
+
+		/* turn on network debugging? */
+		if (tTd(16, 101))
+		{
+			int on = 1;
+			(void) setsockopt(s, SOL_SOCKET, SO_DEBUG,
+					  (char *)&on, sizeof on);
+		}
+		if (e->e_xfp != NULL)
+			(void) fflush(e->e_xfp);		/* for debugging */
+		errno = 0;					/* for debugging */
+
+		/*
+		**  Linux seems to hang in connect for 90 minutes (!!!).
+		**  Time out the connect to avoid this problem.
+		*/
+
+		if (setjmp(CtxConnectTimeout) == 0)
+		{
+			int i;
+
+			if (e->e_ntries <= 0 && TimeOuts.to_iconnect != 0)
+				ev = setevent(TimeOuts.to_iconnect, connecttimeout, 0);
+			else if (TimeOuts.to_connect != 0)
+				ev = setevent(TimeOuts.to_connect, connecttimeout, 0);
+			else
+				ev = NULL;
+			i = connect(s, (struct sockaddr *) &addr, addrlen);
+			sav_errno = errno;
+			if (ev != NULL)
+				clrevent(ev);
+			if (i >= 0)
+				break;
+		}
+		else
+			sav_errno = errno;
+
+		/* if running demand-dialed connection, try again */
+		if (DialDelay > 0 && firstconnect)
+		{
+			if (tTd(16, 1))
+				printf("Connect failed (%s); trying again...\n",
+					errstring(sav_errno));
+			firstconnect = FALSE;
+			sleep(DialDelay);
+			continue;
+		}
+
+		/* couldn't connect.... figure out why */
+		(void) close(s);
+		if (hp != NULL && hp->h_addr_list[addrno])
+		{
+			if (tTd(16, 1))
+				printf("Connect failed (%s); trying new address....\n",
+					errstring(sav_errno));
+			switch (addr.sa.sa_family)
+			{
+#if NETINET
+			  case AF_INET:
+				bcopy(hp->h_addr_list[addrno++],
+				      &addr.sin.sin_addr,
+				      INADDRSZ);
+				break;
+#endif
+
+			  default:
+				bcopy(hp->h_addr_list[addrno++],
+					addr.sa.sa_data,
+					hp->h_length);
+				break;
+			}
+			continue;
+		}
+
+		/* couldn't open connection */
+#ifdef XLA
+		xla_host_end(host);
+#endif
+		mci_setstat(mci, EX_TEMPFAIL, "4.4.1", NULL);
+		return EX_TEMPFAIL;
+	}
+
+	/* connection ok, put it into canonical form */
+	if ((mci->mci_out = fdopen(s, "w")) == NULL ||
+	    (s = dup(s)) < 0 ||
+	    (mci->mci_in = fdopen(s, "r")) == NULL)
+	{
+		syserr("cannot open SMTP client channel, fd=%d", s);
+		mci_setstat(mci, EX_TEMPFAIL, "4.4.5", NULL);
+		return EX_TEMPFAIL;
+	}
+
+	mci_setstat(mci, EX_OK, NULL, NULL);
+	return (EX_OK);
+}
+/*
+**  MYHOSTNAME -- return the name of this host.
+**
+**	Parameters:
+**		hostbuf -- a place to return the name of this host.
+**		size -- the size of hostbuf.
+**
+**	Returns:
+**		A list of aliases for this host.
+**
+**	Side Effects:
+**		Adds numeric codes to $=w.
+*/
+
+struct hostent *
+myhostname(hostbuf, size)
+	char hostbuf[];
+	int size;
+{
+	register struct hostent *hp;
+
+	if (gethostname(hostbuf, size) < 0)
+	{
+		(void) strcpy(hostbuf, "localhost");
+	}
+	hp = sm_gethostbyname(hostbuf);
+	if (hp == NULL)
+		return NULL;
+	if (strchr(hp->h_name, '.') != NULL || strchr(hostbuf, '.') == NULL)
+	{
+		(void) strncpy(hostbuf, hp->h_name, size - 1);
+		hostbuf[size - 1] = '\0';
+	}
+
+	/*
+	**  If there is still no dot in the name, try looking for a
+	**  dotted alias.
+	*/
+
+	if (strchr(hostbuf, '.') == NULL)
+	{
+		char **ha;
+
+		for (ha = hp->h_aliases; *ha != NULL; ha++)
+		{
+			if (strchr(*ha, '.') != NULL)
+			{
+				(void) strncpy(hostbuf, *ha, size - 1);
+				hostbuf[size - 1] = '\0';
+				break;
+			}
+		}
+	}
+
+	/*
+	**  If _still_ no dot, wait for a while and try again -- it is
+	**  possible that some service is starting up.  This can result
+	**  in excessive delays if the system is badly configured, but
+	**  there really isn't a way around that, particularly given that
+	**  the config file hasn't been read at this point.
+	**  All in all, a bit of a mess.
+	*/
+
+	if (strchr(hostbuf, '.') == NULL &&
+	    !getcanonname(hostbuf, size, TRUE))
+	{
+		sm_syslog(LOG_CRIT, NOQID,
+			"My unqualified host name (%s) unknown; sleeping for retry",
+			hostbuf);
+		message("My unqualified host name (%s) unknown; sleeping for retry",
+			hostbuf);
+		sleep(60);
+		if (!getcanonname(hostbuf, size, TRUE))
+		{
+			sm_syslog(LOG_ALERT, NOQID,
+				"unable to qualify my own domain name (%s) -- using short name",
+				hostbuf);
+			message("WARNING: unable to qualify my own domain name (%s) -- using short name",
+				hostbuf);
+		}
+	}
+	return (hp);
+}
+/*
+**  ADDRCMP -- compare two host addresses
+**
+**	Parameters:
+**		hp -- hostent structure for the first address
+**		ha -- actual first address
+**		sa -- second address
+**
+**	Returns:
+**		0 -- if ha and sa match
+**		else -- they don't match
+*/
+
+int
+addrcmp(hp, ha, sa)
+	struct hostent *hp;
+	char *ha;
+	SOCKADDR *sa;
+{
+	switch (sa->sa.sa_family)
+	{
+	  case AF_INET:
+		if (hp->h_addrtype == AF_INET)
+			return bcmp(ha, (char *) &sa->sin.sin_addr, hp->h_length);
+		break;
+
+	}
+	return -1;
+}
+/*
+**  GETAUTHINFO -- get the real host name asociated with a file descriptor
+**
+**	Uses RFC1413 protocol to try to get info from the other end.
+**
+**	Parameters:
+**		fd -- the descriptor
+**
+**	Returns:
+**		The user@host information associated with this descriptor.
+*/
+
+static jmp_buf	CtxAuthTimeout;
+
+static void
+authtimeout()
+{
+	longjmp(CtxAuthTimeout, 1);
+}
+
+char *
+getauthinfo(fd)
+	int fd;
+{
+	SOCKADDR_LEN_T falen;
+	register char *volatile p = NULL;
+	SOCKADDR la;
+	SOCKADDR_LEN_T lalen;
+	register struct servent *sp;
+	volatile int s;
+	int i;
+	EVENT *ev;
+	int nleft;
+	struct hostent *hp;
+	char **ha;
+	volatile bool may_be_forged;
+	char ibuf[MAXNAME + 1];
+	static char hbuf[MAXNAME * 2 + 2];
+
+	falen = sizeof RealHostAddr;
+	if (isatty(fd) || getpeername(fd, &RealHostAddr.sa, &falen) < 0 ||
+	    falen <= 0 || RealHostAddr.sa.sa_family == 0)
+	{
+		(void) snprintf(hbuf, sizeof hbuf, "%s@localhost",
+			RealUserName);
+		if (tTd(9, 1))
+			printf("getauthinfo: %s\n", hbuf);
+		return hbuf;
+	}
+
+	if (RealHostName == NULL)
+	{
+		/* translate that to a host name */
+		RealHostName = newstr(hostnamebyanyaddr(&RealHostAddr));
+		if (strlen(RealHostName) > MAXNAME)
+			RealHostName[MAXNAME - 1] = '\0';
+	}
+
+	/* cross check RealHostName with forward DNS lookup */
+	if (anynet_ntoa(&RealHostAddr)[0] == '[')
+	{
+		/* address is not a socket */
+		may_be_forged = FALSE;
+	}
+	else if (RealHostName[0] == '[')
+	{
+		/* have IP address with no forward lookup */
+		may_be_forged = FALSE;
+	}
+	else
+	{
+		/* try to match the reverse against the forward lookup */
+		hp = sm_gethostbyname(RealHostName);
+
+		if (hp == NULL)
+			may_be_forged = TRUE;
+		else
+		{
+			for (ha = hp->h_addr_list; *ha != NULL; ha++)
+				if (addrcmp(hp, *ha, &RealHostAddr) == 0)
+					break;
+			may_be_forged = *ha == NULL;
+		}
+	}
+
+	if (TimeOuts.to_ident == 0)
+		goto noident;
+
+	lalen = sizeof la;
+	if (RealHostAddr.sa.sa_family != AF_INET ||
+	    getsockname(fd, &la.sa, &lalen) < 0 || lalen <= 0 ||
+	    la.sa.sa_family != AF_INET)
+	{
+		/* no ident info */
+		goto noident;
+	}
+
+	/* create ident query */
+	(void) snprintf(ibuf, sizeof ibuf, "%d,%d\r\n",
+		ntohs(RealHostAddr.sin.sin_port), ntohs(la.sin.sin_port));
+
+	/* create local address */
+	la.sin.sin_port = 0;
+
+	/* create foreign address */
+	sp = getservbyname("auth", "tcp");
+	if (sp != NULL)
+		RealHostAddr.sin.sin_port = sp->s_port;
+	else
+		RealHostAddr.sin.sin_port = htons(113);
+
+	s = -1;
+	if (setjmp(CtxAuthTimeout) != 0)
+	{
+		if (s >= 0)
+			(void) close(s);
+		goto noident;
+	}
+
+	/* put a timeout around the whole thing */
+	ev = setevent(TimeOuts.to_ident, authtimeout, 0);
+
+	/* connect to foreign IDENT server using same address as SMTP socket */
+	s = socket(AF_INET, SOCK_STREAM, 0);
+	if (s < 0)
+	{
+		clrevent(ev);
+		goto noident;
+	}
+	if (bind(s, &la.sa, sizeof la.sin) < 0 ||
+	    connect(s, &RealHostAddr.sa, sizeof RealHostAddr.sin) < 0)
+	{
+		goto closeident;
+	}
+
+	if (tTd(9, 10))
+		printf("getauthinfo: sent %s", ibuf);
+
+	/* send query */
+	if (write(s, ibuf, strlen(ibuf)) < 0)
+		goto closeident;
+
+	/* get result */
+	p = &ibuf[0];
+	nleft = sizeof ibuf - 1;
+	while ((i = read(s, p, nleft)) > 0)
+	{
+		p += i;
+		nleft -= i;
+		*p = '\0';
+		if (strchr(ibuf, '\n') != NULL)
+			break;
+	}
+	(void) close(s);
+	clrevent(ev);
+	if (i < 0 || p == &ibuf[0])
+		goto noident;
+
+	if (*--p == '\n' && *--p == '\r')
+		p--;
+	*++p = '\0';
+
+	if (tTd(9, 3))
+		printf("getauthinfo:  got %s\n", ibuf);
+
+	/* parse result */
+	p = strchr(ibuf, ':');
+	if (p == NULL)
+	{
+		/* malformed response */
+		goto noident;
+	}
+	while (isascii(*++p) && isspace(*p))
+		continue;
+	if (strncasecmp(p, "userid", 6) != 0)
+	{
+		/* presumably an error string */
+		goto noident;
+	}
+	p += 6;
+	while (isascii(*p) && isspace(*p))
+		p++;
+	if (*p++ != ':')
+	{
+		/* either useridxx or malformed response */
+		goto noident;
+	}
+
+	/* p now points to the OSTYPE field */
+	p = strchr(p, ':');
+	if (p == NULL)
+	{
+		/* malformed response */
+		goto noident;
+	}
+
+	/* 1413 says don't do this -- but it's broken otherwise */
+	while (isascii(*++p) && isspace(*p))
+		continue;
+
+	/* p now points to the authenticated name -- copy carefully */
+	cleanstrcpy(hbuf, p, MAXNAME);
+	i = strlen(hbuf);
+	snprintf(&hbuf[i], sizeof hbuf - i, "@%s",
+		RealHostName == NULL ? "localhost" : RealHostName);
+	goto postident;
+
+closeident:
+	(void) close(s);
+	clrevent(ev);
+
+noident:
+	if (RealHostName == NULL)
+	{
+		if (tTd(9, 1))
+			printf("getauthinfo: NULL\n");
+		return NULL;
+	}
+	snprintf(hbuf, sizeof hbuf, "%s", RealHostName);
+
+postident:
+#if IP_SRCROUTE
+# ifndef GET_IPOPT_DST
+#  define GET_IPOPT_DST(dst)	(dst)
+# endif
+	/*
+	**  Extract IP source routing information.
+	**
+	**	Format of output for a connection from site a through b
+	**	through c to d:
+	**		loose:      @site-c@site-b:site-a
+	**		strict:	   !@site-c@site-b:site-a
+	**
+	**	o - pointer within ipopt_list structure.
+	**	q - pointer within ls/ss rr route data
+	**	p - pointer to hbuf
+	*/
+
+	if (RealHostAddr.sa.sa_family == AF_INET)
+	{
+		SOCKOPT_LEN_T ipoptlen;
+		int j;
+		u_char *q;
+		u_char *o;
+		int l;
+		struct in_addr addr;
+		struct ipoption ipopt;
+
+		ipoptlen = sizeof ipopt;
+		if (getsockopt(fd, IPPROTO_IP, IP_OPTIONS,
+			       (char *) &ipopt, &ipoptlen) < 0)
+			goto noipsr;
+		if (ipoptlen == 0)
+			goto noipsr;
+		o = (u_char *) ipopt.ipopt_list;
+		while (o != NULL && o < (u_char *) &ipopt + ipoptlen)
+		{
+			switch (*o)
+			{
+			  case IPOPT_EOL: 
+				o = NULL;
+				break;
+
+			  case IPOPT_NOP:
+				o++;
+				break;
+
+			  case IPOPT_SSRR:
+			  case IPOPT_LSRR:
+				/*
+				**  Source routing.
+				**	o[0] is the option type (loose/strict).
+				**	o[1] is the length of this option,
+				**		including option type and
+				**		length.
+				**	o[2] is the pointer into the route
+				**		data.
+				**	o[3] begins the route data.
+				*/
+
+				p = &hbuf[strlen(hbuf)];
+				l = sizeof hbuf - (hbuf - p) - 6;
+				snprintf(p, SPACELEFT(hbuf, p), " [%s@%.*s",
+				    *o == IPOPT_SSRR ? "!" : "",
+				    l > 240 ? 120 : l / 2,
+				    inet_ntoa(GET_IPOPT_DST(ipopt.ipopt_dst)));
+				i = strlen(p);
+				p += i;
+				l -= strlen(p);
+
+				j = o[1] / sizeof(struct in_addr) - 1;
+
+				/* q skips length and router pointer to data */
+				q = &o[3];
+				for ( ; j >= 0; j--)
+				{
+					memcpy(&addr, q, sizeof(addr));
+					snprintf(p, SPACELEFT(hbuf, p),
+						"%c%.*s",
+						j != 0 ? '@' : ':',
+						l > 240 ? 120 :
+						    j == 0 ? l : l / 2,
+						inet_ntoa(addr));
+					i = strlen(p);
+					p += i;
+					l -= i + 1;
+					q += sizeof(struct in_addr); 
+				}
+				o += o[1];
+				break;
+
+			  default:
+				/* Skip over option */
+				o += o[1];
+				break;
+			}
+		}
+		snprintf(p, SPACELEFT(hbuf, p), "]");
+		goto postipsr;
+	}
+#endif
+
+noipsr:
+	if (RealHostName != NULL && RealHostName[0] != '[')
+	{
+		p = &hbuf[strlen(hbuf)];
+		(void) snprintf(p, SPACELEFT(hbuf, p), " [%.100s]",
+			anynet_ntoa(&RealHostAddr));
+	}
+	if (may_be_forged)
+	{
+		p = &hbuf[strlen(hbuf)];
+		(void) snprintf(p, SPACELEFT(hbuf, p), " (may be forged)");
+	}
+
+postipsr:
+	if (tTd(9, 1))
+		printf("getauthinfo: %s\n", hbuf);
+	return hbuf;
+}
+/*
+**  HOST_MAP_LOOKUP -- turn a hostname into canonical form
+**
+**	Parameters:
+**		map -- a pointer to this map.
+**		name -- the (presumably unqualified) hostname.
+**		av -- unused -- for compatibility with other mapping
+**			functions.
+**		statp -- an exit status (out parameter) -- set to
+**			EX_TEMPFAIL if the name server is unavailable.
+**
+**	Returns:
+**		The mapping, if found.
+**		NULL if no mapping found.
+**
+**	Side Effects:
+**		Looks up the host specified in hbuf.  If it is not
+**		the canonical name for that host, return the canonical
+**		name (unless MF_MATCHONLY is set, which will cause the
+**		status only to be returned).
+*/
+
+char *
+host_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	register struct hostent *hp;
+	struct in_addr in_addr;
+	char *cp;
+	register STAB *s;
+	char hbuf[MAXNAME + 1];
+
+	/*
+	**  See if we have already looked up this name.  If so, just
+	**  return it.
+	*/
+
+	s = stab(name, ST_NAMECANON, ST_ENTER);
+	if (bitset(NCF_VALID, s->s_namecanon.nc_flags))
+	{
+		if (tTd(9, 1))
+			printf("host_map_lookup(%s) => CACHE %s\n",
+			       name,
+			       s->s_namecanon.nc_cname == NULL
+					? "NULL"
+					: s->s_namecanon.nc_cname);
+		errno = s->s_namecanon.nc_errno;
+#if NAMED_BIND
+		h_errno = s->s_namecanon.nc_herrno;
+#endif
+		*statp = s->s_namecanon.nc_stat;
+		if (*statp == EX_TEMPFAIL)
+		{
+			CurEnv->e_status = "4.4.3";
+			message("851 %s: Name server timeout",
+				shortenstring(name, 33));
+		}
+		if (*statp != EX_OK)
+			return NULL;
+		if (s->s_namecanon.nc_cname == NULL)
+		{
+			syserr("host_map_lookup(%s): bogus NULL cache entry, errno = %d, h_errno = %d",
+				name,
+				s->s_namecanon.nc_errno,
+				s->s_namecanon.nc_herrno);
+			return NULL;
+		}
+		if (bitset(MF_MATCHONLY, map->map_mflags))
+			cp = map_rewrite(map, name, strlen(name), NULL);
+		else
+			cp = map_rewrite(map,
+					 s->s_namecanon.nc_cname,
+					 strlen(s->s_namecanon.nc_cname),
+					 av);
+		return cp;
+	}
+
+	/*
+	**  If we are running without a regular network connection (usually
+	**  dial-on-demand) and we are just queueing, we want to avoid DNS
+	**  lookups because those could try to connect to a server.
+	*/
+
+	if (CurEnv->e_sendmode == SM_DEFER)
+	{
+		if (tTd(9, 1))
+			printf("host_map_lookup(%s) => DEFERRED\n", name);
+		*statp = EX_TEMPFAIL;
+		return NULL;
+	}
+
+	/*
+	**  If first character is a bracket, then it is an address
+	**  lookup.  Address is copied into a temporary buffer to
+	**  strip the brackets and to preserve name if address is
+	**  unknown.
+	*/
+
+	if (*name != '[')
+	{
+		if (tTd(9, 1))
+			printf("host_map_lookup(%s) => ", name);
+		s->s_namecanon.nc_flags |= NCF_VALID;		/* will be soon */
+		snprintf(hbuf, sizeof hbuf, "%s", name);
+		if (getcanonname(hbuf, sizeof hbuf - 1, !HasWildcardMX))
+		{
+			if (tTd(9, 1))
+				printf("%s\n", hbuf);
+			s->s_namecanon.nc_stat = EX_OK;
+			s->s_namecanon.nc_cname = newstr(hbuf);
+			if (bitset(MF_MATCHONLY, map->map_mflags))
+				cp = map_rewrite(map, name, strlen(name), NULL);
+			else
+				cp = map_rewrite(map, hbuf, strlen(hbuf), av);
+			return cp;
+		}
+		else
+		{
+			s->s_namecanon.nc_errno = errno;
+#if NAMED_BIND
+			s->s_namecanon.nc_herrno = h_errno;
+			if (tTd(9, 1))
+				printf("FAIL (%d)\n", h_errno);
+			switch (h_errno)
+			{
+			  case TRY_AGAIN:
+				if (UseNameServer)
+				{
+					CurEnv->e_status = "4.4.3";
+					message("851 %s: Name server timeout",
+						shortenstring(name, 33));
+				}
+				*statp = EX_TEMPFAIL;
+				break;
+
+			  case HOST_NOT_FOUND:
+			  case NO_DATA:
+				*statp = EX_NOHOST;
+				break;
+
+			  case NO_RECOVERY:
+				*statp = EX_SOFTWARE;
+				break;
+
+			  default:
+				*statp = EX_UNAVAILABLE;
+				break;
+			}
+#else
+			if (tTd(9, 1))
+				printf("FAIL\n");
+			*statp = EX_NOHOST;
+#endif
+			s->s_namecanon.nc_stat = *statp;
+			return NULL;
+		}
+	}
+	if ((cp = strchr(name, ']')) == NULL)
+		return (NULL);
+	*cp = '\0';
+	in_addr.s_addr = inet_addr(&name[1]);
+	*cp = ']';
+
+	/* nope -- ask the name server */
+	hp = sm_gethostbyaddr((char *)&in_addr, INADDRSZ, AF_INET);
+	s->s_namecanon.nc_errno = errno;
+#if NAMED_BIND
+	s->s_namecanon.nc_herrno = h_errno;
+#endif
+	s->s_namecanon.nc_flags |= NCF_VALID;		/* will be soon */
+	if (hp == NULL)
+	{
+		s->s_namecanon.nc_stat = *statp = EX_NOHOST;
+		return (NULL);
+	}
+
+	/* found a match -- copy out */
+	hp->h_name = denlstring((char *) hp->h_name, TRUE, TRUE);
+	s->s_namecanon.nc_stat = *statp = EX_OK;
+	s->s_namecanon.nc_cname = newstr(hp->h_name);
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		cp = map_rewrite(map, name, strlen(name), NULL);
+	else
+		cp = map_rewrite(map, hp->h_name, strlen(hp->h_name), av);
+	return cp;
+}
+
+# else /* DAEMON */
+/* code for systems without sophisticated networking */
+
+/*
+**  MYHOSTNAME -- stub version for case of no daemon code.
+**
+**	Can't convert to upper case here because might be a UUCP name.
+**
+**	Mark, you can change this to be anything you want......
+*/
+
+char **
+myhostname(hostbuf, size)
+	char hostbuf[];
+	int size;
+{
+	register FILE *f;
+
+	hostbuf[0] = '\0';
+	f = fopen("/usr/include/whoami", "r");
+	if (f != NULL)
+	{
+		(void) fgets(hostbuf, size, f);
+		fixcrlf(hostbuf, TRUE);
+		(void) fclose(f);
+	}
+	return (NULL);
+}
+/*
+**  GETAUTHINFO -- get the real host name asociated with a file descriptor
+**
+**	Parameters:
+**		fd -- the descriptor
+**
+**	Returns:
+**		The host name associated with this descriptor, if it can
+**			be determined.
+**		NULL otherwise.
+**
+**	Side Effects:
+**		none
+*/
+
+char *
+getauthinfo(fd)
+	int fd;
+{
+	return NULL;
+}
+/*
+**  MAPHOSTNAME -- turn a hostname into canonical form
+**
+**	Parameters:
+**		map -- a pointer to the database map.
+**		name -- a buffer containing a hostname.
+**		avp -- a pointer to a (cf file defined) argument vector.
+**		statp -- an exit status (out parameter).
+**
+**	Returns:
+**		mapped host name
+**		FALSE otherwise.
+**
+**	Side Effects:
+**		Looks up the host specified in name.  If it is not
+**		the canonical name for that host, replace it with
+**		the canonical name.  If the name is unknown, or it
+**		is already the canonical name, leave it unchanged.
+*/
+
+/*ARGSUSED*/
+char *
+host_map_lookup(map, name, avp, statp)
+	MAP *map;
+	char *name;
+	char **avp;
+	char *statp;
+{
+	register struct hostent *hp;
+	char *cp;
+
+	hp = sm_gethostbyname(name);
+	if (hp == NULL)
+	{
+		*statp = EX_NOHOST;
+		return NULL;
+	}
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		cp = map_rewrite(map, name, strlen(name), NULL);
+	else
+		cp = map_rewrite(map, hp->h_name, strlen(hp->h_name), av);
+	return cp;
+}
+
+#endif /* DAEMON */
+/*
+**  HOST_MAP_INIT -- initialize host class structures
+*/
+
+bool
+host_map_init(map, args)
+	MAP *map;
+	char *args;
+{
+	register char *p = args;
+
+	for (;;)
+	{
+		while (isascii(*p) && isspace(*p))
+			p++;
+		if (*p != '-')
+			break;
+		switch (*++p)
+		{
+		  case 'a':
+			map->map_app = ++p;
+			break;
+
+		  case 'm':
+			map->map_mflags |= MF_MATCHONLY;
+			break;
+
+		  case 't':
+			map->map_mflags |= MF_NODEFER;
+			break;
+		}
+		while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+			p++;
+		if (*p != '\0')
+			*p++ = '\0';
+	}
+	if (map->map_app != NULL)
+		map->map_app = newstr(map->map_app);
+	return TRUE;
+}
+/*
+**  ANYNET_NTOA -- convert a network address to printable form.
+**
+**	Parameters:
+**		sap -- a pointer to a sockaddr structure.
+**
+**	Returns:
+**		A printable version of that sockaddr.
+*/
+
+#ifdef USE_SOCK_STREAM
+
+#if NETLINK
+# include <net/if_dl.h>
+#endif
+
+char *
+anynet_ntoa(sap)
+	register SOCKADDR *sap;
+{
+	register char *bp;
+	register char *ap;
+	int l;
+	static char buf[100];
+
+	/* check for null/zero family */
+	if (sap == NULL)
+		return "NULLADDR";
+	if (sap->sa.sa_family == 0)
+		return "0";
+
+	switch (sap->sa.sa_family)
+	{
+#if NETUNIX
+	  case AF_UNIX:
+	  	if (sap->sunix.sun_path[0] != '\0')
+	  		snprintf(buf, sizeof buf, "[UNIX: %.64s]",
+				sap->sunix.sun_path);
+	  	else
+	  		snprintf(buf, sizeof buf, "[UNIX: localhost]");
+		return buf;
+#endif
+
+#if NETINET
+	  case AF_INET:
+		return inet_ntoa(sap->sin.sin_addr);
+#endif
+
+#if NETLINK
+	  case AF_LINK:
+		snprintf(buf, sizeof buf, "[LINK: %s]",
+			link_ntoa((struct sockaddr_dl *) &sap->sa));
+		return buf;
+#endif
+	  default:
+		/* this case is needed when nothing is #defined */
+		/* in order to keep the switch syntactically correct */
+		break;
+	}
+
+	/* unknown family -- just dump bytes */
+	(void) snprintf(buf, sizeof buf, "Family %d: ", sap->sa.sa_family);
+	bp = &buf[strlen(buf)];
+	ap = sap->sa.sa_data;
+	for (l = sizeof sap->sa.sa_data; --l >= 0; )
+	{
+		(void) snprintf(bp, SPACELEFT(buf, bp), "%02x:", *ap++ & 0377);
+		bp += 3;
+	}
+	*--bp = '\0';
+	return buf;
+}
+/*
+**  HOSTNAMEBYANYADDR -- return name of host based on address
+**
+**	Parameters:
+**		sap -- SOCKADDR pointer
+**
+**	Returns:
+**		text representation of host name.
+**
+**	Side Effects:
+**		none.
+*/
+
+char *
+hostnamebyanyaddr(sap)
+	register SOCKADDR *sap;
+{
+	register struct hostent *hp;
+	int saveretry;
+
+#if NAMED_BIND
+	/* shorten name server timeout to avoid higher level timeouts */
+	saveretry = _res.retry;
+	_res.retry = 3;
+#endif /* NAMED_BIND */
+
+	switch (sap->sa.sa_family)
+	{
+#if NETINET
+	  case AF_INET:
+		hp = sm_gethostbyaddr((char *) &sap->sin.sin_addr,
+			INADDRSZ,
+			AF_INET);
+		break;
+#endif
+
+#if NETISO
+	  case AF_ISO:
+		hp = sm_gethostbyaddr((char *) &sap->siso.siso_addr,
+			sizeof sap->siso.siso_addr,
+			AF_ISO);
+		break;
+#endif
+
+#if NETUNIX
+	  case AF_UNIX:
+		hp = NULL;
+		break;
+#endif
+
+	  default:
+		hp = sm_gethostbyaddr(sap->sa.sa_data,
+			   sizeof sap->sa.sa_data,
+			   sap->sa.sa_family);
+		break;
+	}
+
+#if NAMED_BIND
+	_res.retry = saveretry;
+#endif /* NAMED_BIND */
+
+	if (hp != NULL && hp->h_name[0] != '[')
+		return denlstring((char *) hp->h_name, TRUE, TRUE);
+	else if (sap->sa.sa_family == AF_UNIX && sap->sunix.sun_path[0] == '\0')
+		return "localhost";
+	else
+	{
+		/* produce a dotted quad */
+		static char buf[203];
+
+		(void) snprintf(buf, sizeof buf, "[%.200s]", anynet_ntoa(sap));
+		return buf;
+	}
+}
+
+#endif /* SOCK_STREAM */
diff --git a/src/deliver.c b/src/deliver.c
new file mode 100644
index 0000000..9575515
--- /dev/null
+++ b/src/deliver.c
@@ -0,0 +1,3486 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)deliver.c	8.296 (Berkeley) 10/22/97";
+#endif /* not lint */
+
+#include "sendmail.h"
+#include <errno.h>
+#if NAMED_BIND
+#include <resolv.h>
+
+extern int	h_errno;
+#endif
+
+#if HASSETUSERCONTEXT
+# include <login_cap.h>
+#endif
+
+#if SMTP
+extern char	SmtpError[];
+#endif
+
+/*
+**  SENDALL -- actually send all the messages.
+**
+**	Parameters:
+**		e -- the envelope to send.
+**		mode -- the delivery mode to use.  If SM_DEFAULT, use
+**			the current e->e_sendmode.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Scans the send lists and sends everything it finds.
+**		Delivers any appropriate error messages.
+**		If we are running in a non-interactive mode, takes the
+**			appropriate action.
+*/
+
+void
+sendall(e, mode)
+	ENVELOPE *e;
+	int mode;
+{
+	register ADDRESS *q;
+	char *owner;
+	int otherowners;
+	register ENVELOPE *ee;
+	ENVELOPE *splitenv = NULL;
+	int oldverbose = Verbose;
+	bool somedeliveries = FALSE, expensive = FALSE;
+	pid_t pid;
+	extern void sendenvelope();
+
+	/*
+	**  If we have had global, fatal errors, don't bother sending
+	**  the message at all if we are in SMTP mode.  Local errors
+	**  (e.g., a single address failing) will still cause the other
+	**  addresses to be sent.
+	*/
+
+	if (bitset(EF_FATALERRS, e->e_flags) &&
+	    (OpMode == MD_SMTP || OpMode == MD_DAEMON))
+	{
+		e->e_flags |= EF_CLRQUEUE;
+		return;
+	}
+
+	/* determine actual delivery mode */
+	if (mode == SM_DEFAULT)
+	{
+		mode = e->e_sendmode;
+		if (mode != SM_VERIFY && mode != SM_DEFER &&
+		    shouldqueue(e->e_msgpriority, e->e_ctime))
+			mode = SM_QUEUE;
+	}
+
+	if (tTd(13, 1))
+	{
+		extern void printenvflags();
+
+		printf("\n===== SENDALL: mode %c, id %s, e_from ",
+			mode, e->e_id);
+		printaddr(&e->e_from, FALSE);
+		printf("\te_flags = ");
+		printenvflags(e);
+		printf("sendqueue:\n");
+		printaddr(e->e_sendqueue, TRUE);
+	}
+
+	/*
+	**  Do any preprocessing necessary for the mode we are running.
+	**	Check to make sure the hop count is reasonable.
+	**	Delete sends to the sender in mailing lists.
+	*/
+
+	CurEnv = e;
+	if (tTd(62, 1))
+		checkfds(NULL);
+
+	if (e->e_hopcount > MaxHopCount)
+	{
+		errno = 0;
+#if QUEUE
+		queueup(e, mode == SM_QUEUE || mode == SM_DEFER);
+#endif
+		e->e_flags |= EF_FATALERRS|EF_PM_NOTIFY|EF_CLRQUEUE;
+		syserr("554 Too many hops %d (%d max): from %s via %s, to %s",
+			e->e_hopcount, MaxHopCount, e->e_from.q_paddr,
+			RealHostName == NULL ? "localhost" : RealHostName,
+			e->e_sendqueue->q_paddr);
+		e->e_sendqueue->q_status = "5.4.6";
+		return;
+	}
+
+	/*
+	**  Do sender deletion.
+	**
+	**	If the sender has the QQUEUEUP flag set, skip this.
+	**	This can happen if the name server is hosed when you
+	**	are trying to send mail.  The result is that the sender
+	**	is instantiated in the queue as a recipient.
+	*/
+
+	if (!bitset(EF_METOO, e->e_flags) &&
+	    !bitset(QQUEUEUP, e->e_from.q_flags))
+	{
+		if (tTd(13, 5))
+		{
+			printf("sendall: QDONTSEND ");
+			printaddr(&e->e_from, FALSE);
+		}
+		e->e_from.q_flags |= QDONTSEND;
+		(void) recipient(&e->e_from, &e->e_sendqueue, 0, e);
+	}
+
+	/*
+	**  Handle alias owners.
+	**
+	**	We scan up the q_alias chain looking for owners.
+	**	We discard owners that are the same as the return path.
+	*/
+
+	for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+	{
+		register struct address *a;
+
+		for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias)
+			continue;
+		if (a != NULL)
+			q->q_owner = a->q_owner;
+
+		if (q->q_owner != NULL &&
+		    !bitset(QDONTSEND, q->q_flags) &&
+		    strcmp(q->q_owner, e->e_from.q_paddr) == 0)
+			q->q_owner = NULL;
+	}
+
+	if (tTd(13, 25))
+	{
+		printf("\nAfter first owner pass, sendq =\n");
+		printaddr(e->e_sendqueue, TRUE);
+	}
+
+	owner = "";
+	otherowners = 1;
+	while (owner != NULL && otherowners > 0)
+	{
+		if (tTd(13, 28))
+			printf("owner = \"%s\", otherowners = %d\n",
+				owner, otherowners);
+		owner = NULL;
+		otherowners = bitset(EF_SENDRECEIPT, e->e_flags) ? 1 : 0;
+
+		for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+		{
+			if (tTd(13, 30))
+			{
+				printf("Checking ");
+				printaddr(q, FALSE);
+			}
+			if (bitset(QDONTSEND, q->q_flags))
+			{
+				if (tTd(13, 30))
+					printf("    ... QDONTSEND\n");
+				continue;
+			}
+			if (tTd(13, 29) && !tTd(13, 30))
+			{
+				printf("Checking ");
+				printaddr(q, FALSE);
+			}
+
+			if (q->q_owner != NULL)
+			{
+				if (owner == NULL)
+				{
+					if (tTd(13, 40))
+						printf("    ... First owner = \"%s\"\n",
+							q->q_owner);
+					owner = q->q_owner;
+				}
+				else if (owner != q->q_owner)
+				{
+					if (strcmp(owner, q->q_owner) == 0)
+					{
+						if (tTd(13, 40))
+							printf("    ... Same owner = \"%s\"\n",
+								owner);
+
+						/* make future comparisons cheap */
+						q->q_owner = owner;
+					}
+					else
+					{
+						if (tTd(13, 40))
+							printf("    ... Another owner \"%s\"\n",
+								q->q_owner);
+						otherowners++;
+					}
+					owner = q->q_owner;
+				}
+				else if (tTd(13, 40))
+					printf("    ... Same owner = \"%s\"\n",
+						owner);
+			}
+			else
+			{
+				if (tTd(13, 40))
+					printf("    ... Null owner\n");
+				otherowners++;
+			}
+
+			/*
+			**  If this mailer is expensive, and if we don't
+			**  want to make connections now, just mark these
+			**  addresses and return.  This is useful if we
+			**  want to batch connections to reduce load.  This
+			**  will cause the messages to be queued up, and a
+			**  daemon will come along to send the messages later.
+			*/
+
+			if (bitset(QBADADDR|QQUEUEUP, q->q_flags))
+			{
+				if (tTd(13, 30))
+					printf("    ... QBADADDR|QQUEUEUP\n");
+				continue;
+			}
+			if (NoConnect && !Verbose &&
+			    bitnset(M_EXPENSIVE, q->q_mailer->m_flags))
+			{
+				if (tTd(13, 30))
+					printf("    ... expensive\n");
+				q->q_flags |= QQUEUEUP;
+				expensive = TRUE;
+			}
+			else
+			{
+				if (tTd(13, 30))
+					printf("    ... deliverable\n");
+				somedeliveries = TRUE;
+			}
+		}
+
+		if (owner != NULL && otherowners > 0)
+		{
+			extern HDR *copyheader();
+			extern ADDRESS *copyqueue();
+			extern void dup_queue_file __P((ENVELOPE *, ENVELOPE *, int));
+
+			/*
+			**  Split this envelope into two.
+			*/
+
+			ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE));
+			*ee = *e;
+			ee->e_id = NULL;
+			(void) queuename(ee, '\0');
+
+			if (tTd(13, 1))
+				printf("sendall: split %s into %s, owner = \"%s\", otherowners = %d\n",
+					e->e_id, ee->e_id, owner, otherowners);
+
+			ee->e_header = copyheader(e->e_header);
+			ee->e_sendqueue = copyqueue(e->e_sendqueue);
+			ee->e_errorqueue = copyqueue(e->e_errorqueue);
+			ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS|EF_SENDRECEIPT|EF_RET_PARAM);
+			ee->e_flags |= EF_NORECEIPT;
+			setsender(owner, ee, NULL, '\0', TRUE);
+			if (tTd(13, 5))
+			{
+				printf("sendall(split): QDONTSEND ");
+				printaddr(&ee->e_from, FALSE);
+			}
+			ee->e_from.q_flags |= QDONTSEND;
+			ee->e_dfp = NULL;
+			ee->e_xfp = NULL;
+			ee->e_errormode = EM_MAIL;
+			ee->e_sibling = splitenv;
+			splitenv = ee;
+
+			for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+			{
+				if (q->q_owner == owner)
+				{
+					q->q_flags |= QDONTSEND;
+					q->q_flags &= ~(QQUEUEUP|QBADADDR);
+					if (tTd(13, 6))
+						printf("\t... stripping %s from original envelope\n",
+							q->q_paddr);
+				}
+			}
+			for (q = ee->e_sendqueue; q != NULL; q = q->q_next)
+			{
+				if (q->q_owner != owner)
+				{
+					q->q_flags |= QDONTSEND;
+					q->q_flags &= ~(QQUEUEUP|QBADADDR);
+					if (tTd(13, 6))
+						printf("\t... dropping %s from cloned envelope\n",
+							q->q_paddr);
+				}
+				else
+				{
+					/* clear DSN parameters */
+					q->q_flags &= ~(QHASNOTIFY|Q_PINGFLAGS);
+					q->q_flags |= DefaultNotify & ~QPINGONSUCCESS;
+					if (tTd(13, 6))
+						printf("\t... moving %s to cloned envelope\n",
+							q->q_paddr);
+				}
+			}
+
+			if (mode != SM_VERIFY && bitset(EF_HAS_DF, e->e_flags))
+				dup_queue_file(e, ee, 'd');
+			openxscript(ee);
+			if (LogLevel > 4)
+				sm_syslog(LOG_INFO, ee->e_id,
+					"clone %s, owner=%s",
+					e->e_id, owner);
+		}
+	}
+
+	if (owner != NULL)
+	{
+		setsender(owner, e, NULL, '\0', TRUE);
+		if (tTd(13, 5))
+		{
+			printf("sendall(owner): QDONTSEND ");
+			printaddr(&e->e_from, FALSE);
+		}
+		e->e_from.q_flags |= QDONTSEND;
+		e->e_errormode = EM_MAIL;
+		e->e_flags |= EF_NORECEIPT;
+		e->e_flags &= ~EF_FATALERRS;
+	}
+
+	/* if nothing to be delivered, just queue up everything */
+	if (!somedeliveries && mode != SM_QUEUE && mode != SM_DEFER &&
+	    mode != SM_VERIFY)
+	{
+		if (tTd(13, 29))
+			printf("No deliveries: auto-queuing\n");
+		mode = SM_QUEUE;
+
+		/* treat this as a delivery in terms of counting tries */
+		e->e_dtime = curtime();
+		if (!expensive)
+			e->e_ntries++;
+		for (ee = splitenv; ee != NULL; ee = ee->e_sibling)
+		{
+			ee->e_dtime = curtime();
+			if (!expensive)
+				ee->e_ntries++;
+		}
+	}
+
+# if QUEUE
+	if ((mode == SM_QUEUE || mode == SM_DEFER || mode == SM_FORK ||
+	     (mode != SM_VERIFY && SuperSafe)) &&
+	    (!bitset(EF_INQUEUE, e->e_flags) || splitenv != NULL))
+	{
+		/* be sure everything is instantiated in the queue */
+		queueup(e, mode == SM_QUEUE || mode == SM_DEFER);
+		for (ee = splitenv; ee != NULL; ee = ee->e_sibling)
+			queueup(ee, mode == SM_QUEUE || mode == SM_DEFER);
+	}
+#endif /* QUEUE */
+
+	if (tTd(62, 10))
+		checkfds("after envelope splitting");
+
+	/*
+	**  If we belong in background, fork now.
+	*/
+
+	if (tTd(13, 20))
+	{
+		printf("sendall: final mode = %c\n", mode);
+		if (tTd(13, 21))
+		{
+			printf("\n================ Final Send Queue(s) =====================\n");
+			printf("\n  *** Envelope %s, e_from=%s ***\n",
+				e->e_id, e->e_from.q_paddr);
+			printaddr(e->e_sendqueue, TRUE);
+			for (ee = splitenv; ee != NULL; ee = ee->e_sibling)
+			{
+				printf("\n  *** Envelope %s, e_from=%s ***\n",
+					ee->e_id, ee->e_from.q_paddr);
+				printaddr(ee->e_sendqueue, TRUE);
+			}
+			printf("==========================================================\n\n");
+		}
+	}
+	switch (mode)
+	{
+	  case SM_VERIFY:
+		Verbose = 2;
+		break;
+
+	  case SM_QUEUE:
+	  case SM_DEFER:
+  queueonly:
+		if (e->e_nrcpts > 0)
+			e->e_flags |= EF_INQUEUE;
+		dropenvelope(e, FALSE);
+		for (ee = splitenv; ee != NULL; ee = ee->e_sibling)
+		{
+			if (ee->e_nrcpts > 0)
+				ee->e_flags |= EF_INQUEUE;
+			dropenvelope(ee, FALSE);
+		}
+		return;
+
+	  case SM_FORK:
+		if (e->e_xfp != NULL)
+			(void) fflush(e->e_xfp);
+
+# if !HASFLOCK
+		/*
+		**  Since fcntl locking has the interesting semantic that
+		**  the lock is owned by a process, not by an open file
+		**  descriptor, we have to unlock this envelope, and
+		**  then restart from scratch in the child.
+		*/
+
+		unlockqueue(e);
+		for (ee = splitenv; ee != NULL; ee = ee->e_sibling)
+			unlockqueue(ee);
+
+# endif /* !HASFLOCK */
+
+		pid = fork();
+		if (pid < 0)
+		{
+			goto queueonly;
+		}
+		else if (pid > 0)
+		{
+# if HASFLOCK
+			/* be sure we leave the temp files to our child */
+			/* can't call unlockqueue to avoid unlink of xfp */
+			if (e->e_lockfp != NULL)
+				(void) xfclose(e->e_lockfp, "sendenvelope lockfp", e->e_id);
+			e->e_lockfp = NULL;
+
+			/* close any random open files in the envelope */
+			closexscript(e);
+			if (e->e_dfp != NULL)
+				(void) xfclose(e->e_dfp, "sendenvelope dfp", e->e_id);
+			e->e_dfp = NULL;
+			e->e_flags &= ~EF_HAS_DF;
+# endif
+
+			/* make sure the parent doesn't own the envelope */
+			e->e_id = NULL;
+
+			/* catch intermediate zombie */
+			(void) waitfor(pid);
+			return;
+		}
+
+		/* double fork to avoid zombies */
+		pid = fork();
+		if (pid > 0)
+			exit(EX_OK);
+
+		/* be sure we are immune from the terminal */
+		disconnect(2, e);
+
+		/* prevent parent from waiting if there was an error */
+		if (pid < 0)
+		{
+			e->e_flags |= EF_INQUEUE;
+			finis();
+		}
+
+		/* be sure to give error messages in child */
+		QuickAbort = FALSE;
+
+		/*
+		**  Close any cached connections.
+		**
+		**	We don't send the QUIT protocol because the parent
+		**	still knows about the connection.
+		**
+		**	This should only happen when delivering an error
+		**	message.
+		*/
+
+		mci_flush(FALSE, NULL);
+
+# if HASFLOCK
+		break;
+# else
+
+		/*
+		**  Now reacquire and run the various queue files.
+		*/
+
+		for (ee = splitenv; ee != NULL; ee = e->e_sibling)
+			(void) dowork(ee->e_id, FALSE, FALSE, ee);
+		(void) dowork(e->e_id, FALSE, FALSE, e);
+		finis();
+# endif /* !HASFLOCK */
+	}
+
+	sendenvelope(e, mode);
+	dropenvelope(e, TRUE);
+	for (ee = splitenv; ee != NULL; ee = ee->e_sibling)
+	{
+		CurEnv = ee;
+		if (mode != SM_VERIFY)
+			openxscript(ee);
+		sendenvelope(ee, mode);
+		dropenvelope(ee, TRUE);
+	}
+	CurEnv = e;
+
+	Verbose = oldverbose;
+	if (mode == SM_FORK)
+		finis();
+}
+
+void
+sendenvelope(e, mode)
+	register ENVELOPE *e;
+	char mode;
+{
+	register ADDRESS *q;
+	bool didany;
+
+	if (tTd(13, 10))
+		printf("sendenvelope(%s) e_flags=0x%lx\n",
+			e->e_id == NULL ? "[NOQUEUE]" : e->e_id,
+			e->e_flags);
+	if (LogLevel > 80)
+		sm_syslog(LOG_DEBUG, e->e_id,
+			"sendenvelope, flags=0x%x",
+			e->e_flags);
+
+	/*
+	**  If we have had global, fatal errors, don't bother sending
+	**  the message at all if we are in SMTP mode.  Local errors
+	**  (e.g., a single address failing) will still cause the other
+	**  addresses to be sent.
+	*/
+
+	if (bitset(EF_FATALERRS, e->e_flags) &&
+	    (OpMode == MD_SMTP || OpMode == MD_DAEMON))
+	{
+		e->e_flags |= EF_CLRQUEUE;
+		return;
+	}
+
+	/*
+	**  Run through the list and send everything.
+	**
+	**	Set EF_GLOBALERRS so that error messages during delivery
+	**	result in returned mail.
+	*/
+
+	e->e_nsent = 0;
+	e->e_flags |= EF_GLOBALERRS;
+	define(macid("{envid}", NULL), e->e_envid, e);
+	define(macid("{bodytype}", NULL), e->e_bodytype, e);
+	didany = FALSE;
+
+	/* now run through the queue */
+	for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+	{
+#if XDEBUG
+		char wbuf[MAXNAME + 20];
+
+		(void) snprintf(wbuf, sizeof wbuf, "sendall(%.*s)",
+			MAXNAME, q->q_paddr);
+		checkfd012(wbuf);
+#endif
+		if (mode == SM_VERIFY)
+		{
+			e->e_to = q->q_paddr;
+			if (!bitset(QDONTSEND|QBADADDR, q->q_flags))
+			{
+				if (q->q_host != NULL && q->q_host[0] != '\0')
+					message("deliverable: mailer %s, host %s, user %s",
+						q->q_mailer->m_name,
+						q->q_host,
+						q->q_user);
+				else
+					message("deliverable: mailer %s, user %s",
+						q->q_mailer->m_name,
+						q->q_user);
+			}
+		}
+		else if (!bitset(QDONTSEND|QBADADDR, q->q_flags))
+		{
+			extern int deliver __P((ENVELOPE *, ADDRESS *));
+
+# if QUEUE
+			/*
+			**  Checkpoint the send list every few addresses
+			*/
+
+			if (e->e_nsent >= CheckpointInterval)
+			{
+				queueup(e, FALSE);
+				e->e_nsent = 0;
+			}
+# endif /* QUEUE */
+			(void) deliver(e, q);
+			didany = TRUE;
+		}
+	}
+	if (didany)
+	{
+		e->e_dtime = curtime();
+		e->e_ntries++;
+	}
+
+#if XDEBUG
+	checkfd012("end of sendenvelope");
+#endif
+}
+/*
+**  DUP_QUEUE_FILE -- duplicate a queue file into a split queue
+**
+**	Parameters:
+**		e -- the existing envelope
+**		ee -- the new envelope
+**		type -- the queue file type (e.g., 'd')
+**
+**	Returns:
+**		none
+*/
+
+void
+dup_queue_file(e, ee, type)
+	struct envelope *e, *ee;
+	int type;
+{
+	char f1buf[MAXQFNAME], f2buf[MAXQFNAME];
+
+	ee->e_dfp = NULL;
+	ee->e_xfp = NULL;
+	snprintf(f1buf, sizeof f1buf, "%s", queuename(e, type));
+	snprintf(f2buf, sizeof f2buf, "%s", queuename(ee, type));
+	if (link(f1buf, f2buf) < 0)
+	{
+		int saverrno = errno;
+
+		syserr("sendall: link(%s, %s)", f1buf, f2buf);
+		if (saverrno == EEXIST)
+		{
+			if (unlink(f2buf) < 0)
+			{
+				syserr("!sendall: unlink(%s): permanent",
+					f2buf);
+				/*NOTREACHED*/
+			}
+			if (link(f1buf, f2buf) < 0)
+			{
+				syserr("!sendall: link(%s, %s): permanent",
+					f1buf, f2buf);
+				/*NOTREACHED*/
+			}
+		}
+	}
+}
+/*
+**  DOFORK -- do a fork, retrying a couple of times on failure.
+**
+**	This MUST be a macro, since after a vfork we are running
+**	two processes on the same stack!!!
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		From a macro???  You've got to be kidding!
+**
+**	Side Effects:
+**		Modifies the ==> LOCAL <== variable 'pid', leaving:
+**			pid of child in parent, zero in child.
+**			-1 on unrecoverable error.
+**
+**	Notes:
+**		I'm awfully sorry this looks so awful.  That's
+**		vfork for you.....
+*/
+
+# define NFORKTRIES	5
+
+# ifndef FORK
+# define FORK	fork
+# endif
+
+# define DOFORK(fORKfN) \
+{\
+	register int i;\
+\
+	for (i = NFORKTRIES; --i >= 0; )\
+	{\
+		pid = fORKfN();\
+		if (pid >= 0)\
+			break;\
+		if (i > 0)\
+			sleep((unsigned) NFORKTRIES - i);\
+	}\
+}
+/*
+**  DOFORK -- simple fork interface to DOFORK.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		pid of child in parent.
+**		zero in child.
+**		-1 on error.
+**
+**	Side Effects:
+**		returns twice, once in parent and once in child.
+*/
+
+int
+dofork()
+{
+	register pid_t pid = -1;
+
+	DOFORK(fork);
+	return (pid);
+}
+/*
+**  DELIVER -- Deliver a message to a list of addresses.
+**
+**	This routine delivers to everyone on the same host as the
+**	user on the head of the list.  It is clever about mailers
+**	that don't handle multiple users.  It is NOT guaranteed
+**	that it will deliver to all these addresses however -- so
+**	deliver should be called once for each address on the
+**	list.
+**
+**	Parameters:
+**		e -- the envelope to deliver.
+**		firstto -- head of the address list to deliver to.
+**
+**	Returns:
+**		zero -- successfully delivered.
+**		else -- some failure, see ExitStat for more info.
+**
+**	Side Effects:
+**		The standard input is passed off to someone.
+*/
+
+#ifndef NO_UID
+# define NO_UID		-1
+#endif
+#ifndef NO_GID
+# define NO_GID		-1
+#endif
+
+int
+deliver(e, firstto)
+	register ENVELOPE *e;
+	ADDRESS *firstto;
+{
+	char *host;			/* host being sent to */
+	char *user;			/* user being sent to */
+	char **pvp;
+	register char **mvp;
+	register char *p;
+	register MAILER *m;		/* mailer for this recipient */
+	ADDRESS *volatile ctladdr;
+	ADDRESS *volatile contextaddr = NULL;
+	register MCI *volatile mci;
+	register ADDRESS *to = firstto;
+	volatile bool clever = FALSE;	/* running user smtp to this mailer */
+	ADDRESS *volatile tochain = NULL; /* users chain in this mailer call */
+	int rcode;			/* response code */
+	char *firstsig;			/* signature of firstto */
+	pid_t pid = -1;
+	char *volatile curhost;
+	register volatile u_short port = 0;
+	time_t xstart;
+	bool suidwarn;
+	bool anyok;			/* at least one address was OK */
+	bool goodmxfound = FALSE;	/* at least one MX was OK */
+	int mpvect[2];
+	int rpvect[2];
+	char *pv[MAXPV+1];
+	char tobuf[TOBUFSIZE];		/* text line of to people */
+	char buf[MAXNAME + 1];
+	char rpathbuf[MAXNAME + 1];	/* translated return path */
+	extern int checkcompat();
+	extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int));
+
+	errno = 0;
+	if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags))
+		return (0);
+
+	suidwarn = geteuid() == 0;
+
+#if NAMED_BIND
+	/* unless interactive, try twice, over a minute */
+	if (OpMode == MD_DAEMON || OpMode == MD_SMTP)
+	{
+		_res.retrans = 30;
+		_res.retry = 2;
+	}
+#endif
+
+	m = to->q_mailer;
+	host = to->q_host;
+	CurEnv = e;			/* just in case */
+	e->e_statmsg = NULL;
+#if SMTP
+	SmtpError[0] = '\0';
+#endif
+	xstart = curtime();
+
+	if (tTd(10, 1))
+		printf("\n--deliver, id=%s, mailer=%s, host=`%s', first user=`%s'\n",
+			e->e_id, m->m_name, host, to->q_user);
+	if (tTd(10, 100))
+		printopenfds(FALSE);
+
+	/*
+	**  Do initial argv setup.
+	**	Insert the mailer name.  Notice that $x expansion is
+	**	NOT done on the mailer name.  Then, if the mailer has
+	**	a picky -f flag, we insert it as appropriate.  This
+	**	code does not check for 'pv' overflow; this places a
+	**	manifest lower limit of 4 for MAXPV.
+	**		The from address rewrite is expected to make
+	**		the address relative to the other end.
+	*/
+
+	/* rewrite from address, using rewriting rules */
+	rcode = EX_OK;
+	if (bitnset(M_UDBENVELOPE, e->e_from.q_mailer->m_flags))
+		p = e->e_sender;
+	else
+		p = e->e_from.q_paddr;
+	p = remotename(p, m, RF_SENDERADDR|RF_CANONICAL, &rcode, e);
+	if (strlen(p) >= (SIZE_T) sizeof rpathbuf)
+	{
+		p = shortenstring(p, 203);
+		syserr("remotename: huge return %s", p);
+	}
+	snprintf(rpathbuf, sizeof rpathbuf, "%s", p);
+	define('g', rpathbuf, e);		/* translated return path */
+	define('h', host, e);			/* to host */
+	Errors = 0;
+	pvp = pv;
+	*pvp++ = m->m_argv[0];
+
+	/* insert -f or -r flag as appropriate */
+	if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags)))
+	{
+		if (bitnset(M_FOPT, m->m_flags))
+			*pvp++ = "-f";
+		else
+			*pvp++ = "-r";
+		*pvp++ = newstr(rpathbuf);
+	}
+
+	/*
+	**  Append the other fixed parts of the argv.  These run
+	**  up to the first entry containing "$u".  There can only
+	**  be one of these, and there are only a few more slots
+	**  in the pv after it.
+	*/
+
+	for (mvp = m->m_argv; (p = *++mvp) != NULL; )
+	{
+		/* can't use strchr here because of sign extension problems */
+		while (*p != '\0')
+		{
+			if ((*p++ & 0377) == MACROEXPAND)
+			{
+				if (*p == 'u')
+					break;
+			}
+		}
+
+		if (*p != '\0')
+			break;
+
+		/* this entry is safe -- go ahead and process it */
+		expand(*mvp, buf, sizeof buf, e);
+		*pvp++ = newstr(buf);
+		if (pvp >= &pv[MAXPV - 3])
+		{
+			syserr("554 Too many parameters to %s before $u", pv[0]);
+			return (-1);
+		}
+	}
+
+	/*
+	**  If we have no substitution for the user name in the argument
+	**  list, we know that we must supply the names otherwise -- and
+	**  SMTP is the answer!!
+	*/
+
+	if (*mvp == NULL)
+	{
+		/* running SMTP */
+# if SMTP
+		clever = TRUE;
+		*pvp = NULL;
+# else /* SMTP */
+		/* oops!  we don't implement SMTP */
+		syserr("554 SMTP style mailer not implemented");
+		return (EX_SOFTWARE);
+# endif /* SMTP */
+	}
+
+	/*
+	**  At this point *mvp points to the argument with $u.  We
+	**  run through our address list and append all the addresses
+	**  we can.  If we run out of space, do not fret!  We can
+	**  always send another copy later.
+	*/
+
+	tobuf[0] = '\0';
+	e->e_to = tobuf;
+	ctladdr = NULL;
+	firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e);
+	for (; to != NULL; to = to->q_next)
+	{
+		/* avoid sending multiple recipients to dumb mailers */
+		if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags))
+			break;
+
+		/* if already sent or not for this host, don't send */
+		if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) ||
+		    to->q_mailer != firstto->q_mailer ||
+		    strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0)
+			continue;
+
+		/* avoid overflowing tobuf */
+		if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2))
+			break;
+
+		if (tTd(10, 1))
+		{
+			printf("\nsend to ");
+			printaddr(to, FALSE);
+		}
+
+		/* compute effective uid/gid when sending */
+		if (bitnset(M_RUNASRCPT, to->q_mailer->m_flags))
+			contextaddr = ctladdr = getctladdr(to);
+
+		if (tTd(10, 2))
+		{
+			printf("ctladdr=");
+			printaddr(ctladdr, FALSE);
+		}
+
+		user = to->q_user;
+		e->e_to = to->q_paddr;
+		if (tTd(10, 5))
+		{
+			printf("deliver: QDONTSEND ");
+			printaddr(to, FALSE);
+		}
+		to->q_flags |= QDONTSEND;
+
+		/*
+		**  Check to see that these people are allowed to
+		**  talk to each other.
+		*/
+
+		if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize)
+		{
+			e->e_flags |= EF_NO_BODY_RETN;
+			to->q_status = "5.2.3";
+			usrerr("552 Message is too large; %ld bytes max", m->m_maxsize);
+			markfailure(e, to, NULL, EX_UNAVAILABLE);
+			giveresponse(EX_UNAVAILABLE, m, NULL, ctladdr, xstart, e);
+			continue;
+		}
+#if NAMED_BIND
+		h_errno = 0;
+#endif
+
+		/* do config file checking of compatibility */
+		rcode = rscheck("check_compat",
+				e->e_from.q_paddr, to->q_paddr, e);
+		if (rcode == EX_OK)
+		{
+			/* do in-code checking */
+			rcode = checkcompat(to, e);
+		}
+		if (rcode != EX_OK)
+		{
+			markfailure(e, to, NULL, rcode);
+			giveresponse(rcode, m, NULL, ctladdr, xstart, e);
+			continue;
+		}
+
+		/*
+		**  Strip quote bits from names if the mailer is dumb
+		**	about them.
+		*/
+
+		if (bitnset(M_STRIPQ, m->m_flags))
+		{
+			stripquotes(user);
+			stripquotes(host);
+		}
+
+		/* hack attack -- delivermail compatibility */
+		if (m == ProgMailer && *user == '|')
+			user++;
+
+		/*
+		**  If an error message has already been given, don't
+		**	bother to send to this address.
+		**
+		**	>>>>>>>>>> This clause assumes that the local mailer
+		**	>> NOTE >> cannot do any further aliasing; that
+		**	>>>>>>>>>> function is subsumed by sendmail.
+		*/
+
+		if (bitset(QBADADDR|QQUEUEUP, to->q_flags))
+			continue;
+
+		/*
+		**  See if this user name is "special".
+		**	If the user name has a slash in it, assume that this
+		**	is a file -- send it off without further ado.  Note
+		**	that this type of addresses is not processed along
+		**	with the others, so we fudge on the To person.
+		*/
+
+		if (strcmp(m->m_mailer, "[FILE]") == 0)
+		{
+			rcode = mailfile(user, ctladdr, SFF_CREAT, e);
+			giveresponse(rcode, m, NULL, ctladdr, xstart, e);
+			e->e_nsent++;
+			if (rcode == EX_OK)
+			{
+				to->q_flags |= QSENT;
+				markstats(e, to);
+				if (bitnset(M_LOCALMAILER, m->m_flags) &&
+				    bitset(QPINGONSUCCESS, to->q_flags))
+				{
+					to->q_flags |= QDELIVERED;
+					to->q_status = "2.1.5";
+					fprintf(e->e_xfp, "%s... Successfully delivered\n",
+						to->q_paddr);
+				}
+			}
+			to->q_statdate = curtime();
+			continue;
+		}
+
+		/*
+		**  Address is verified -- add this user to mailer
+		**  argv, and add it to the print list of recipients.
+		*/
+
+		/* link together the chain of recipients */
+		to->q_tchain = tochain;
+		tochain = to;
+
+		/* create list of users for error messages */
+		(void) strcat(tobuf, ",");
+		(void) strcat(tobuf, to->q_paddr);
+		define('u', user, e);		/* to user */
+		p = to->q_home;
+		if (p == NULL && ctladdr != NULL)
+			p = ctladdr->q_home;
+		define('z', p, e);	/* user's home */
+
+		/*
+		**  Expand out this user into argument list.
+		*/
+
+		if (!clever)
+		{
+			expand(*mvp, buf, sizeof buf, e);
+			*pvp++ = newstr(buf);
+			if (pvp >= &pv[MAXPV - 2])
+			{
+				/* allow some space for trailing parms */
+				break;
+			}
+		}
+	}
+
+	/* see if any addresses still exist */
+	if (tobuf[0] == '\0')
+	{
+		define('g', (char *) NULL, e);
+		return (0);
+	}
+
+	/* print out messages as full list */
+	e->e_to = tobuf + 1;
+
+	/*
+	**  Fill out any parameters after the $u parameter.
+	*/
+
+	while (!clever && *++mvp != NULL)
+	{
+		expand(*mvp, buf, sizeof buf, e);
+		*pvp++ = newstr(buf);
+		if (pvp >= &pv[MAXPV])
+			syserr("554 deliver: pv overflow after $u for %s", pv[0]);
+	}
+	*pvp++ = NULL;
+
+	/*
+	**  Call the mailer.
+	**	The argument vector gets built, pipes
+	**	are created as necessary, and we fork & exec as
+	**	appropriate.
+	**	If we are running SMTP, we just need to clean up.
+	*/
+
+	/*XXX this seems a bit wierd */
+	if (ctladdr == NULL && m != ProgMailer && m != FileMailer &&
+	    bitset(QGOODUID, e->e_from.q_flags))
+		ctladdr = &e->e_from;
+
+#if NAMED_BIND
+	if (ConfigLevel < 2)
+		_res.options &= ~(RES_DEFNAMES | RES_DNSRCH);	/* XXX */
+#endif
+
+	if (tTd(11, 1))
+	{
+		printf("openmailer:");
+		printav(pv);
+	}
+	errno = 0;
+#if NAMED_BIND
+	h_errno = 0;
+#endif
+
+	CurHostName = NULL;
+
+	/*
+	**  Deal with the special case of mail handled through an IPC
+	**  connection.
+	**	In this case we don't actually fork.  We must be
+	**	running SMTP for this to work.  We will return a
+	**	zero pid to indicate that we are running IPC.
+	**  We also handle a debug version that just talks to stdin/out.
+	*/
+
+	curhost = NULL;
+	SmtpPhase = NULL;
+	mci = NULL;
+
+#if XDEBUG
+	{
+		char wbuf[MAXLINE];
+
+		/* make absolutely certain 0, 1, and 2 are in use */
+		snprintf(wbuf, sizeof wbuf, "%s... openmailer(%s)",
+			shortenstring(e->e_to, 203), m->m_name);
+		checkfd012(wbuf);
+	}
+#endif
+
+	/* check for 8-bit available */
+	if (bitset(EF_HAS8BIT, e->e_flags) &&
+	    bitnset(M_7BITS, m->m_flags) &&
+	    (bitset(EF_DONT_MIME, e->e_flags) ||
+	     !(bitset(MM_MIME8BIT, MimeMode) ||
+	       (bitset(EF_IS_MIME, e->e_flags) &&
+	        bitset(MM_CVTMIME, MimeMode)))))
+	{
+		usrerr("554 Cannot send 8-bit data to 7-bit destination");
+		rcode = EX_DATAERR;
+		e->e_status = "5.6.3";
+		goto give_up;
+	}
+
+	if (tTd(62, 8))
+		checkfds("before delivery");
+
+	/* check for Local Person Communication -- not for mortals!!! */
+	if (strcmp(m->m_mailer, "[LPC]") == 0)
+	{
+		mci = (MCI *) xalloc(sizeof *mci);
+		bzero((char *) mci, sizeof *mci);
+		mci->mci_in = stdin;
+		mci->mci_out = stdout;
+		mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN;
+		mci->mci_mailer = m;
+	}
+	else if (strcmp(m->m_mailer, "[IPC]") == 0 ||
+		 strcmp(m->m_mailer, "[TCP]") == 0)
+	{
+#if DAEMON
+		register int i;
+
+		if (pv[0] == NULL || pv[1] == NULL || pv[1][0] == '\0')
+		{
+			syserr("null host name for %s mailer", m->m_mailer);
+			rcode = EX_CONFIG;
+			goto give_up;
+		}
+
+		CurHostName = pv[1];
+		curhost = hostsignature(m, pv[1], e);
+
+		if (curhost == NULL || curhost[0] == '\0')
+		{
+			syserr("null host signature for %s", pv[1]);
+			rcode = EX_CONFIG;
+			goto give_up;
+		}
+
+		if (!clever)
+		{
+			syserr("554 non-clever IPC");
+			rcode = EX_CONFIG;
+			goto give_up;
+		}
+		if (pv[2] != NULL)
+		{
+			port = htons(atoi(pv[2]));
+			if (port == 0)
+			{
+				struct servent *sp = getservbyname(pv[2], "tcp");
+
+				if (sp == NULL)
+					syserr("Service %s unknown", pv[2]);
+				else
+					port = sp->s_port;
+			}
+		}
+tryhost:
+		while (*curhost != '\0')
+		{
+			register char *p;
+			static char hostbuf[MAXNAME + 1];
+			extern int makeconnection __P((char *, u_short, MCI *, ENVELOPE *));
+
+			/* pull the next host from the signature */
+			p = strchr(curhost, ':');
+			if (p == NULL)
+				p = (char *) &curhost[strlen(curhost)];
+			if (p == curhost)
+			{
+				syserr("deliver: null host name in signature");
+				curhost++;
+				continue;
+			}
+			i = p - curhost;
+			if (i >= sizeof hostbuf)
+				i = sizeof hostbuf - 1;
+			strncpy(hostbuf, curhost, i);
+			hostbuf[i] = '\0';
+			if (*p != '\0')
+				p++;
+			curhost = p;
+
+			/* see if we already know that this host is fried */
+			CurHostName = hostbuf;
+			mci = mci_get(hostbuf, m);
+			if (mci->mci_state != MCIS_CLOSED)
+			{
+				if (tTd(11, 1))
+				{
+					printf("openmailer: ");
+					mci_dump(mci, FALSE);
+				}
+				CurHostName = mci->mci_host;
+				message("Using cached %sSMTP connection to %s via %s...",
+					bitset(MCIF_ESMTP, mci->mci_flags) ? "E" : "",
+					hostbuf, m->m_name);
+				break;
+			}
+			mci->mci_mailer = m;
+			if (mci->mci_exitstat != EX_OK)
+			{
+				if (mci->mci_exitstat == EX_TEMPFAIL)
+					goodmxfound = TRUE;
+				continue;
+			}
+
+			if (mci_lock_host(mci) != EX_OK)
+			{
+				mci_setstat(mci, EX_TEMPFAIL, "4.4.5", NULL);
+				goodmxfound = TRUE;
+				continue;
+			}
+
+			/* try the connection */
+			setproctitle("%s %s: %s", e->e_id, hostbuf, "user open");
+			if (port == 0)
+				message("Connecting to %s via %s...",
+					hostbuf, m->m_name);
+			else
+				message("Connecting to %s port %d via %s...",
+					hostbuf, ntohs(port), m->m_name);
+			i = makeconnection(hostbuf, port, mci, e);
+			mci->mci_lastuse = curtime();
+			mci->mci_exitstat = i;
+			mci->mci_errno = errno;
+#if NAMED_BIND
+			mci->mci_herrno = h_errno;
+#endif
+			if (i == EX_OK)
+			{
+				goodmxfound = TRUE;
+				mci->mci_state = MCIS_OPENING;
+				mci_cache(mci);
+				if (TrafficLogFile != NULL)
+					fprintf(TrafficLogFile, "%05d === CONNECT %s\n",
+						(int) getpid(), hostbuf);
+				break;
+			}
+			else
+			{
+			    	if (tTd(11, 1))
+					printf("openmailer: makeconnection => stat=%d, errno=%d\n",
+						i, errno);
+				if (i == EX_TEMPFAIL)
+					goodmxfound = TRUE;
+				mci_unlock_host(mci);
+			}
+
+			/* enter status of this host */
+			setstat(i);
+
+			/* should print some message here for -v mode */
+		}
+		if (mci == NULL)
+		{
+			syserr("deliver: no host name");
+			rcode = EX_SOFTWARE;
+			goto give_up;
+		}
+		mci->mci_pid = 0;
+#else /* no DAEMON */
+		syserr("554 openmailer: no IPC");
+		if (tTd(11, 1))
+			printf("openmailer: NULL\n");
+		rcode = EX_UNAVAILABLE;
+		goto give_up;
+#endif /* DAEMON */
+	}
+	else
+	{
+		/* flush any expired connections */
+		(void) mci_scan(NULL);
+
+		/* announce the connection to verbose listeners */
+		if (host == NULL || host[0] == '\0')
+			message("Connecting to %s...", m->m_name);
+		else
+			message("Connecting to %s via %s...", host, m->m_name);
+		if (TrafficLogFile != NULL)
+		{
+			char **av;
+
+			fprintf(TrafficLogFile, "%05d === EXEC", (int) getpid());
+			for (av = pv; *av != NULL; av++)
+				fprintf(TrafficLogFile, " %s", *av);
+			fprintf(TrafficLogFile, "\n");
+		}
+
+#if XDEBUG
+		checkfd012("before creating mail pipe");
+#endif
+
+		/* create a pipe to shove the mail through */
+		if (pipe(mpvect) < 0)
+		{
+			syserr("%s... openmailer(%s): pipe (to mailer)",
+				shortenstring(e->e_to, 203), m->m_name);
+			if (tTd(11, 1))
+				printf("openmailer: NULL\n");
+			rcode = EX_OSERR;
+			goto give_up;
+		}
+
+#if XDEBUG
+		/* make sure we didn't get one of the standard I/O files */
+		if (mpvect[0] < 3 || mpvect[1] < 3)
+		{
+			syserr("%s... openmailer(%s): bogus mpvect %d %d",
+				shortenstring(e->e_to, 203), m->m_name,
+				mpvect[0], mpvect[1]);
+			printopenfds(TRUE);
+			if (tTd(11, 1))
+				printf("openmailer: NULL\n");
+			rcode = EX_OSERR;
+			goto give_up;
+		}
+
+		/* make sure system call isn't dead meat */
+		checkfdopen(mpvect[0], "mpvect[0]");
+		checkfdopen(mpvect[1], "mpvect[1]");
+		if (mpvect[0] == mpvect[1] ||
+		    (e->e_lockfp != NULL &&
+		     (mpvect[0] == fileno(e->e_lockfp) ||
+		      mpvect[1] == fileno(e->e_lockfp))))
+		{
+			if (e->e_lockfp == NULL)
+				syserr("%s... openmailer(%s): overlapping mpvect %d %d",
+					shortenstring(e->e_to, 203), m->m_name,
+					mpvect[0], mpvect[1]);
+			else
+				syserr("%s... openmailer(%s): overlapping mpvect %d %d, lockfp = %d",
+					shortenstring(e->e_to, 203), m->m_name,
+					mpvect[0], mpvect[1], fileno(e->e_lockfp));
+		}
+#endif
+
+		/* if this mailer speaks smtp, create a return pipe */
+#if SMTP
+		if (clever)
+		{
+			if (pipe(rpvect) < 0)
+			{
+				syserr("%s... openmailer(%s): pipe (from mailer)",
+					shortenstring(e->e_to, 203), m->m_name);
+				(void) close(mpvect[0]);
+				(void) close(mpvect[1]);
+				if (tTd(11, 1))
+					printf("openmailer: NULL\n");
+				rcode = EX_OSERR;
+				goto give_up;
+			}
+# if XDEBUG
+			checkfdopen(rpvect[0], "rpvect[0]");
+			checkfdopen(rpvect[1], "rpvect[1]");
+# endif
+		}
+#endif
+
+		/*
+		**  Actually fork the mailer process.
+		**	DOFORK is clever about retrying.
+		**
+		**	Dispose of SIGCHLD signal catchers that may be laying
+		**	around so that endmail will get it.
+		*/
+
+		if (e->e_xfp != NULL)
+			(void) fflush(e->e_xfp);		/* for debugging */
+		(void) fflush(stdout);
+# ifdef SIGCHLD
+		(void) setsignal(SIGCHLD, SIG_DFL);
+# endif /* SIGCHLD */
+		DOFORK(FORK);
+		/* pid is set by DOFORK */
+		if (pid < 0)
+		{
+			/* failure */
+			syserr("%s... openmailer(%s): cannot fork",
+				shortenstring(e->e_to, 203), m->m_name);
+			(void) close(mpvect[0]);
+			(void) close(mpvect[1]);
+#if SMTP
+			if (clever)
+			{
+				(void) close(rpvect[0]);
+				(void) close(rpvect[1]);
+			}
+#endif
+			if (tTd(11, 1))
+				printf("openmailer: NULL\n");
+			rcode = EX_OSERR;
+			goto give_up;
+		}
+		else if (pid == 0)
+		{
+			int i;
+			int saveerrno;
+			int new_euid = NO_UID;
+			int new_ruid = NO_UID;
+			int new_gid = NO_GID;
+			struct stat stb;
+			extern int DtableSize;
+
+			if (e->e_lockfp != NULL)
+				(void) close(fileno(e->e_lockfp));
+
+			/* child -- set up input & exec mailer */
+			(void) setsignal(SIGINT, SIG_IGN);
+			(void) setsignal(SIGHUP, SIG_IGN);
+			(void) setsignal(SIGTERM, SIG_DFL);
+
+			if (m != FileMailer || stat(tochain->q_user, &stb) < 0)
+				stb.st_mode = 0;
+
+#if HASSETUSERCONTEXT
+			/*
+			**  Set user resources.
+			*/
+
+			if (contextaddr != NULL)
+			{
+				struct passwd *pwd;
+
+				if (contextaddr->q_ruser != NULL)
+					pwd = sm_getpwnam(contextaddr->q_ruser);
+				else
+					pwd = sm_getpwnam(contextaddr->q_user);
+				if (pwd != NULL)
+					(void) setusercontext(NULL,
+						pwd, pwd->pw_uid,
+						LOGIN_SETRESOURCES|LOGIN_SETPRIORITY);
+			}
+#endif
+
+			/* tweak niceness */
+			if (m->m_nice != 0)
+				nice(m->m_nice);
+
+			/* reset group id */
+			if (bitnset(M_SPECIFIC_UID, m->m_flags))
+				new_gid = m->m_gid;
+			else if (bitset(S_ISGID, stb.st_mode))
+				new_gid = stb.st_gid;
+			else if (ctladdr != NULL && ctladdr->q_gid != 0)
+			{
+				if (!DontInitGroups)
+					(void) initgroups(ctladdr->q_ruser != NULL ?
+						ctladdr->q_ruser : ctladdr->q_user,
+						ctladdr->q_gid);
+				new_gid = ctladdr->q_gid;
+			}
+			else
+			{
+				if (!DontInitGroups)
+					(void) initgroups(DefUser, DefGid);
+				if (m->m_gid == 0)
+					new_gid = DefGid;
+				else
+					new_gid = m->m_gid;
+			}
+			if (new_gid != NO_GID && setgid(new_gid) < 0 && suidwarn)
+				syserr("openmailer: setgid(%ld) failed",
+					(long) new_gid);
+
+			/* reset user id */
+			endpwent();
+			if (bitnset(M_SPECIFIC_UID, m->m_flags))
+				new_euid = m->m_uid;
+			if (bitset(S_ISUID, stb.st_mode))
+				new_ruid = stb.st_uid;
+			else if (ctladdr != NULL && ctladdr->q_uid != 0)
+				new_ruid = ctladdr->q_uid;
+			else if (m->m_uid != 0)
+				new_ruid = m->m_uid;
+			else if (!bitnset(M_SPECIFIC_UID, m->m_flags))
+				new_ruid = DefUid;
+			if (new_euid != NO_UID)
+			{
+				vendor_set_uid(new_euid);
+#if USESETEUID
+				if (seteuid(new_euid) < 0 && suidwarn)
+					syserr("openmailer: seteuid(%ld) failed",
+						(long) new_euid);
+#else
+# if HASSETREUID
+				if (setreuid(new_ruid, new_euid) < 0 && suidwarn)
+					syserr("openmailer: setreuid(%ld, %ld) failed",
+						(long) new_ruid, (long) new_euid);
+# else
+				if (new_euid != geteuid() && setuid(new_euid) < 0 && suidwarn)
+					syserr("openmailer: setuid(%ld) failed",
+						(long) new_euid);
+# endif
+#endif
+			}
+			else if (new_ruid != NO_UID)
+			{
+				vendor_set_uid(new_ruid);
+				if (setuid(new_ruid) < 0 && suidwarn)
+					syserr("openmailer: setuid(%ld) failed",
+						(long) new_ruid);
+			}
+
+			if (tTd(11, 2))
+				printf("openmailer: running as r/euid=%d/%d\n",
+					(int) getuid(), (int) geteuid());
+
+			/* move into some "safe" directory */
+			if (m->m_execdir != NULL)
+			{
+				char *p, *q;
+				char buf[MAXLINE + 1];
+
+				for (p = m->m_execdir; p != NULL; p = q)
+				{
+					q = strchr(p, ':');
+					if (q != NULL)
+						*q = '\0';
+					expand(p, buf, sizeof buf, e);
+					if (q != NULL)
+						*q++ = ':';
+					if (tTd(11, 20))
+						printf("openmailer: trydir %s\n",
+							buf);
+					if (buf[0] != '\0' && chdir(buf) >= 0)
+						break;
+				}
+			}
+
+			/* arrange to filter std & diag output of command */
+#if SMTP
+			if (clever)
+			{
+				(void) close(rpvect[0]);
+				if (dup2(rpvect[1], STDOUT_FILENO) < 0)
+				{
+					syserr("%s... openmailer(%s): cannot dup pipe %d for stdout",
+						shortenstring(e->e_to, 203),
+						m->m_name, rpvect[1]);
+					_exit(EX_OSERR);
+				}
+				(void) close(rpvect[1]);
+			}
+			else if (OpMode == MD_SMTP || OpMode == MD_DAEMON ||
+				  HoldErrs || DisConnected)
+			{
+				/* put mailer output in transcript */
+				if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0)
+				{
+					syserr("%s... openmailer(%s): cannot dup xscript %d for stdout",
+						shortenstring(e->e_to, 203),
+						m->m_name, fileno(e->e_xfp));
+					_exit(EX_OSERR);
+				}
+			}
+#endif
+			if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0)
+			{
+				syserr("%s... openmailer(%s): cannot dup stdout for stderr",
+					shortenstring(e->e_to, 203), m->m_name);
+				_exit(EX_OSERR);
+			}
+
+			/* arrange to get standard input */
+			(void) close(mpvect[1]);
+			if (dup2(mpvect[0], STDIN_FILENO) < 0)
+			{
+				syserr("%s... openmailer(%s): cannot dup pipe %d for stdin",
+					shortenstring(e->e_to, 203),
+					m->m_name, mpvect[0]);
+				_exit(EX_OSERR);
+			}
+			(void) close(mpvect[0]);
+
+			/* arrange for all the files to be closed */
+			for (i = 3; i < DtableSize; i++)
+			{
+				register int j;
+
+				if ((j = fcntl(i, F_GETFD, 0)) != -1)
+					(void) fcntl(i, F_SETFD, j | 1);
+			}
+
+			/* run disconnected from terminal */
+			(void) setsid();
+
+			/* try to execute the mailer */
+			execve(m->m_mailer, (ARGV_T) pv, (ARGV_T) UserEnviron);
+			saveerrno = errno;
+			syserr("Cannot exec %s", m->m_mailer);
+			if (bitnset(M_LOCALMAILER, m->m_flags) ||
+			    transienterror(saveerrno))
+				_exit(EX_OSERR);
+			_exit(EX_UNAVAILABLE);
+		}
+
+		/*
+		**  Set up return value.
+		*/
+
+		mci = (MCI *) xalloc(sizeof *mci);
+		bzero((char *) mci, sizeof *mci);
+		mci->mci_mailer = m;
+		mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN;
+		mci->mci_pid = pid;
+		(void) close(mpvect[0]);
+		mci->mci_out = fdopen(mpvect[1], "w");
+		if (mci->mci_out == NULL)
+		{
+			syserr("deliver: cannot create mailer output channel, fd=%d",
+				mpvect[1]);
+			(void) close(mpvect[1]);
+#if SMTP
+			if (clever)
+			{
+				(void) close(rpvect[0]);
+				(void) close(rpvect[1]);
+			}
+#endif
+			rcode = EX_OSERR;
+			goto give_up;
+		}
+#if SMTP
+		if (clever)
+		{
+			(void) close(rpvect[1]);
+			mci->mci_in = fdopen(rpvect[0], "r");
+			if (mci->mci_in == NULL)
+			{
+				syserr("deliver: cannot create mailer input channel, fd=%d",
+					mpvect[1]);
+				(void) close(rpvect[0]);
+				fclose(mci->mci_out);
+				mci->mci_out = NULL;
+				rcode = EX_OSERR;
+				goto give_up;
+			}
+		}
+		else
+#endif
+		{
+			mci->mci_flags |= MCIF_TEMP;
+			mci->mci_in = NULL;
+		}
+	}
+
+	/*
+	**  If we are in SMTP opening state, send initial protocol.
+	*/
+
+	if (bitnset(M_7BITS, m->m_flags) &&
+	    (!clever || mci->mci_state == MCIS_OPENING))
+		mci->mci_flags |= MCIF_7BIT;
+#if SMTP
+	if (clever && mci->mci_state != MCIS_CLOSED)
+	{
+		extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *));
+
+		smtpinit(m, mci, e);
+	}
+#endif
+
+	/* clear out per-message flags from connection structure */
+	mci->mci_flags &= ~(MCIF_CVT7TO8|MCIF_CVT8TO7);
+
+	if (bitset(EF_HAS8BIT, e->e_flags) &&
+	    !bitset(EF_DONT_MIME, e->e_flags) &&
+	    bitnset(M_7BITS, m->m_flags))
+		mci->mci_flags |= MCIF_CVT8TO7;
+
+#if MIME7TO8
+	if (bitnset(M_MAKE8BIT, m->m_flags) &&
+	    !bitset(MCIF_7BIT, mci->mci_flags) &&
+	    (p = hvalue("Content-Transfer-Encoding", e->e_header)) != NULL &&
+	     (strcasecmp(p, "quoted-printable") == 0 ||
+	      strcasecmp(p, "base64") == 0) &&
+	    (p = hvalue("Content-Type", e->e_header)) != NULL)
+	{
+		/* may want to convert 7 -> 8 */
+		/* XXX should really parse it here -- and use a class XXX */
+		if (strncasecmp(p, "text/plain", 10) == 0 &&
+		    (p[10] == '\0' || p[10] == ' ' || p[10] == ';'))
+			mci->mci_flags |= MCIF_CVT7TO8;
+	}
+#endif
+
+	if (tTd(11, 1))
+	{
+		printf("openmailer: ");
+		mci_dump(mci, FALSE);
+	}
+
+	if (mci->mci_state != MCIS_OPEN)
+	{
+		/* couldn't open the mailer */
+		rcode = mci->mci_exitstat;
+		errno = mci->mci_errno;
+#if NAMED_BIND
+		h_errno = mci->mci_herrno;
+#endif
+		if (rcode == EX_OK)
+		{
+			/* shouldn't happen */
+			syserr("554 deliver: mci=%lx rcode=%d errno=%d state=%d sig=%s",
+				(long) mci, rcode, errno, mci->mci_state,
+				firstsig);
+			mci_dump_all(TRUE);
+			rcode = EX_SOFTWARE;
+		}
+#if DAEMON
+		else if (curhost != NULL && *curhost != '\0')
+		{
+			/* try next MX site */
+			goto tryhost;
+		}
+#endif
+	}
+	else if (!clever)
+	{
+		/*
+		**  Format and send message.
+		*/
+
+		putfromline(mci, e);
+		(*e->e_puthdr)(mci, e->e_header, e);
+		(*e->e_putbody)(mci, e, NULL);
+
+		/* get the exit status */
+		rcode = endmailer(mci, e, pv);
+	}
+	else
+#if SMTP
+	{
+		extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *));
+		extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *));
+		extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *));
+		extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *));
+
+		/*
+		**  Send the MAIL FROM: protocol
+		*/
+
+		rcode = smtpmailfrom(m, mci, e);
+		if (rcode == EX_OK)
+		{
+			register char *t = tobuf;
+			register int i;
+
+			/* send the recipient list */
+			tobuf[0] = '\0';
+			for (to = tochain; to != NULL; to = to->q_tchain)
+			{
+				e->e_to = to->q_paddr;
+				if (strlen(to->q_paddr) + (t - tobuf) + 2 > sizeof tobuf)
+				{
+					/* not enough room */
+					continue;
+				}
+				else if ((i = smtprcpt(to, m, mci, e)) != EX_OK)
+				{
+					markfailure(e, to, mci, i);
+					giveresponse(i, m, mci, ctladdr, xstart, e);
+				}
+				else
+				{
+					*t++ = ',';
+					for (p = to->q_paddr; *p; *t++ = *p++)
+						continue;
+					*t = '\0';
+				}
+			}
+
+			/* now send the data */
+			if (tobuf[0] == '\0')
+			{
+				rcode = EX_OK;
+				e->e_to = NULL;
+				if (bitset(MCIF_CACHED, mci->mci_flags))
+					smtprset(m, mci, e);
+			}
+			else
+			{
+				e->e_to = tobuf + 1;
+				rcode = smtpdata(m, mci, e);
+			}
+		}
+# if DAEMON
+		if (rcode == EX_TEMPFAIL && curhost != NULL && *curhost != '\0')
+		{
+			/* try next MX site */
+			goto tryhost;
+		}
+# endif
+	}
+#else /* not SMTP */
+	{
+		syserr("554 deliver: need SMTP compiled to use clever mailer");
+		rcode = EX_CONFIG;
+		goto give_up;
+	}
+#endif /* SMTP */
+#if NAMED_BIND
+	if (ConfigLevel < 2)
+		_res.options |= RES_DEFNAMES | RES_DNSRCH;	/* XXX */
+#endif
+
+	if (tTd(62, 1))
+		checkfds("after delivery");
+
+	/*
+	**  Do final status disposal.
+	**	We check for something in tobuf for the SMTP case.
+	**	If we got a temporary failure, arrange to queue the
+	**		addressees.
+	*/
+
+  give_up:
+#if SMTP
+# if _FFR_LMTP
+	if (bitnset(M_LMTP, m->m_flags))
+	{
+		tobuf[0] = '\0';
+		anyok = FALSE;
+	}
+	else
+# endif
+#endif
+		anyok = rcode == EX_OK;
+
+	for (to = tochain; to != NULL; to = to->q_tchain)
+	{
+		/* see if address already marked */
+		if (bitset(QBADADDR|QQUEUEUP, to->q_flags))
+			continue;
+
+#if SMTP
+# if _FFR_LMTP
+		/* if running LMTP, get the status for each address */
+		if (bitnset(M_LMTP, m->m_flags))
+		{
+			rcode = smtpgetstat(m, mci, e);
+			if (rcode == EX_OK)
+			{
+				if (strlen(to->q_paddr) + strlen(tobuf) + 2 >= sizeof tobuf)
+				{
+					syserr("LMTP tobuf overflow");
+				}
+				else
+				{
+					strcat(tobuf, ",");
+					strcat(tobuf, to->q_paddr);
+				}
+				anyok = TRUE;
+			}
+			else
+			{
+				e->e_to = to->q_paddr;
+				markfailure(e, to, mci, rcode);
+				giveresponse(rcode, m, mci, ctladdr, xstart, e);
+				e->e_to = tobuf + 1;
+				continue;
+			}
+		}
+		else
+# endif
+#endif
+		{
+			/* mark bad addresses */
+			if (rcode != EX_OK)
+			{
+				if (goodmxfound && rcode == EX_NOHOST)
+					rcode = EX_TEMPFAIL;
+				markfailure(e, to, mci, rcode);
+				continue;
+			}
+		}
+
+		/* successful delivery */
+		to->q_flags |= QSENT;
+		to->q_statdate = curtime();
+		e->e_nsent++;
+		if (bitnset(M_LOCALMAILER, m->m_flags) &&
+		    bitset(QPINGONSUCCESS, to->q_flags))
+		{
+			to->q_flags |= QDELIVERED;
+			to->q_status = "2.1.5";
+			fprintf(e->e_xfp, "%s... Successfully delivered\n",
+				to->q_paddr);
+		}
+		else if (bitset(QPINGONSUCCESS, to->q_flags) &&
+			 bitset(QPRIMARY, to->q_flags) &&
+			 !bitset(MCIF_DSN, mci->mci_flags))
+		{
+			to->q_flags |= QRELAYED;
+			fprintf(e->e_xfp, "%s... relayed; expect no further notifications\n",
+				to->q_paddr);
+		}
+	}
+
+#if SMTP
+# if _FFR_LMTP
+	if (bitnset(M_LMTP, m->m_flags))
+	{
+		/*
+		**  Global information applies to the last recipient only;
+		**  clear it out to avoid bogus errors.
+		*/
+
+		rcode = EX_OK;
+		e->e_statmsg = NULL;
+
+		/* reset the mci state for the next transaction */
+		if (mci != NULL && mci->mci_state == MCIS_ACTIVE)
+			mci->mci_state = MCIS_OPEN;
+	}
+# endif
+#endif
+
+	if (tobuf[0] != '\0')
+		giveresponse(rcode, m, mci, ctladdr, xstart, e);
+	if (anyok)
+		markstats(e, tochain);
+	mci_store_persistent(mci);
+
+#if SMTP
+	/* now close the connection */
+	if (clever && mci != NULL && mci->mci_state != MCIS_CLOSED &&
+	    !bitset(MCIF_CACHED, mci->mci_flags))
+		smtpquit(m, mci, e);
+#endif
+
+	/*
+	**  Restore state and return.
+	*/
+
+#if XDEBUG
+	{
+		char wbuf[MAXLINE];
+
+		/* make absolutely certain 0, 1, and 2 are in use */
+		snprintf(wbuf, sizeof wbuf, "%s... end of deliver(%s)",
+			e->e_to == NULL ? "NO-TO-LIST"
+					: shortenstring(e->e_to, 203),
+			m->m_name);
+		checkfd012(wbuf);
+	}
+#endif
+
+	errno = 0;
+	define('g', (char *) NULL, e);
+	return (rcode);
+}
+/*
+**  MARKFAILURE -- mark a failure on a specific address.
+**
+**	Parameters:
+**		e -- the envelope we are sending.
+**		q -- the address to mark.
+**		mci -- mailer connection information.
+**		rcode -- the code signifying the particular failure.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		marks the address (and possibly the envelope) with the
+**			failure so that an error will be returned or
+**			the message will be queued, as appropriate.
+*/
+
+void
+markfailure(e, q, mci, rcode)
+	register ENVELOPE *e;
+	register ADDRESS *q;
+	register MCI *mci;
+	int rcode;
+{
+	char *stat = NULL;
+
+	switch (rcode)
+	{
+	  case EX_OK:
+		break;
+
+	  case EX_TEMPFAIL:
+	  case EX_IOERR:
+	  case EX_OSERR:
+		q->q_flags |= QQUEUEUP;
+		q->q_flags &= ~QDONTSEND;
+		break;
+
+	  default:
+		q->q_flags |= QBADADDR;
+		break;
+	}
+
+	/* find most specific error code possible */
+	if (mci != NULL && mci->mci_status != NULL)
+	{
+		q->q_status = mci->mci_status;
+		q->q_rstatus = mci->mci_rstatus;
+	}
+	else if (e->e_status != NULL)
+	{
+		q->q_status = e->e_status;
+		q->q_rstatus = NULL;
+	}
+	else
+	{
+		switch (rcode)
+		{
+		  case EX_USAGE:
+			stat = "5.5.4";
+			break;
+
+		  case EX_DATAERR:
+			stat = "5.5.2";
+			break;
+
+		  case EX_NOUSER:
+			stat = "5.1.1";
+			break;
+
+		  case EX_NOHOST:
+			stat = "5.1.2";
+			break;
+
+		  case EX_NOINPUT:
+		  case EX_CANTCREAT:
+		  case EX_NOPERM:
+			stat = "5.3.0";
+			break;
+
+		  case EX_UNAVAILABLE:
+		  case EX_SOFTWARE:
+		  case EX_OSFILE:
+		  case EX_PROTOCOL:
+		  case EX_CONFIG:
+			stat = "5.5.0";
+			break;
+
+		  case EX_OSERR:
+		  case EX_IOERR:
+			stat = "4.5.0";
+			break;
+
+		  case EX_TEMPFAIL:
+			stat = "4.2.0";
+			break;
+		}
+		if (stat != NULL)
+			q->q_status = stat;
+	}
+
+	q->q_statdate = curtime();
+	if (CurHostName != NULL && CurHostName[0] != '\0')
+		q->q_statmta = newstr(CurHostName);
+	if (rcode != EX_OK && q->q_rstatus == NULL &&
+	    q->q_mailer != NULL && q->q_mailer->m_diagtype != NULL &&
+	    strcasecmp(q->q_mailer->m_diagtype, "UNIX") == 0)
+	{
+		char buf[30];
+
+		(void) snprintf(buf, sizeof buf, "%d", rcode);
+		q->q_rstatus = newstr(buf);
+	}
+}
+/*
+**  ENDMAILER -- Wait for mailer to terminate.
+**
+**	We should never get fatal errors (e.g., segmentation
+**	violation), so we report those specially.  For other
+**	errors, we choose a status message (into statmsg),
+**	and if it represents an error, we print it.
+**
+**	Parameters:
+**		pid -- pid of mailer.
+**		e -- the current envelope.
+**		pv -- the parameter vector that invoked the mailer
+**			(for error messages).
+**
+**	Returns:
+**		exit code of mailer.
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+endmailer(mci, e, pv)
+	register MCI *mci;
+	register ENVELOPE *e;
+	char **pv;
+{
+	int st;
+
+	mci_unlock_host(mci);
+
+	/* close any connections */
+	if (mci->mci_in != NULL)
+		(void) xfclose(mci->mci_in, mci->mci_mailer->m_name, "mci_in");
+	if (mci->mci_out != NULL)
+		(void) xfclose(mci->mci_out, mci->mci_mailer->m_name, "mci_out");
+	mci->mci_in = mci->mci_out = NULL;
+	mci->mci_state = MCIS_CLOSED;
+
+	/* in the IPC case there is nothing to wait for */
+	if (mci->mci_pid == 0)
+		return (EX_OK);
+
+#if _FFR_TIMEOUT_WAIT
+	put a timeout around the wait
+#endif
+
+	/* wait for the mailer process to die and collect status */
+	st = waitfor(mci->mci_pid);
+	if (st == -1)
+	{
+		syserr("endmailer %s: wait", mci->mci_mailer->m_name);
+		return (EX_SOFTWARE);
+	}
+
+	if (WIFEXITED(st))
+	{
+		/* normal death -- return status */
+		return (WEXITSTATUS(st));
+	}
+
+	/* it died a horrid death */
+	syserr("451 mailer %s died with signal %o",
+		mci->mci_mailer->m_name, st);
+
+	/* log the arguments */
+	if (pv != NULL && e->e_xfp != NULL)
+	{
+		register char **av;
+
+		fprintf(e->e_xfp, "Arguments:");
+		for (av = pv; *av != NULL; av++)
+			fprintf(e->e_xfp, " %s", *av);
+		fprintf(e->e_xfp, "\n");
+	}
+
+	ExitStat = EX_TEMPFAIL;
+	return (EX_TEMPFAIL);
+}
+/*
+**  GIVERESPONSE -- Interpret an error response from a mailer
+**
+**	Parameters:
+**		stat -- the status code from the mailer (high byte
+**			only; core dumps must have been taken care of
+**			already).
+**		m -- the mailer info for this mailer.
+**		mci -- the mailer connection info -- can be NULL if the
+**			response is given before the connection is made.
+**		ctladdr -- the controlling address for the recipient
+**			address(es).
+**		xstart -- the transaction start time, for computing
+**			transaction delays.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Errors may be incremented.
+**		ExitStat may be set.
+*/
+
+void
+giveresponse(stat, m, mci, ctladdr, xstart, e)
+	int stat;
+	register MAILER *m;
+	register MCI *mci;
+	ADDRESS *ctladdr;
+	time_t xstart;
+	ENVELOPE *e;
+{
+	register const char *statmsg;
+	extern char *SysExMsg[];
+	register int i;
+	extern int N_SysEx;
+	char buf[MAXLINE];
+
+	if (e == NULL)
+		syserr("giveresponse: null envelope");
+
+	/*
+	**  Compute status message from code.
+	*/
+
+	i = stat - EX__BASE;
+	if (stat == 0)
+	{
+		statmsg = "250 Sent";
+		if (e->e_statmsg != NULL)
+		{
+			(void) snprintf(buf, sizeof buf, "%s (%s)",
+				statmsg, shortenstring(e->e_statmsg, 403));
+			statmsg = buf;
+		}
+	}
+	else if (i < 0 || i > N_SysEx)
+	{
+		(void) snprintf(buf, sizeof buf, "554 unknown mailer error %d",
+			stat);
+		stat = EX_UNAVAILABLE;
+		statmsg = buf;
+	}
+	else if (stat == EX_TEMPFAIL)
+	{
+		char *bp = buf;
+
+		snprintf(bp, SPACELEFT(buf, bp), "%s", SysExMsg[i] + 1);
+		bp += strlen(bp);
+#if NAMED_BIND
+		if (h_errno == TRY_AGAIN)
+			statmsg = errstring(h_errno+E_DNSBASE);
+		else
+#endif
+		{
+			if (errno != 0)
+				statmsg = errstring(errno);
+			else
+			{
+#if SMTP
+				statmsg = SmtpError;
+#else /* SMTP */
+				statmsg = NULL;
+#endif /* SMTP */
+			}
+		}
+		if (statmsg != NULL && statmsg[0] != '\0')
+			snprintf(bp, SPACELEFT(buf, bp), ": %s", statmsg);
+		statmsg = buf;
+	}
+#if NAMED_BIND
+	else if (stat == EX_NOHOST && h_errno != 0)
+	{
+		statmsg = errstring(h_errno + E_DNSBASE);
+		(void) snprintf(buf, sizeof buf, "%s (%s)",
+			SysExMsg[i] + 1, statmsg);
+		statmsg = buf;
+	}
+#endif
+	else
+	{
+		statmsg = SysExMsg[i];
+		if (*statmsg++ == ':')
+		{
+			(void) snprintf(buf, sizeof buf, "%s: %s",
+				statmsg, errstring(errno));
+			statmsg = buf;
+		}
+	}
+
+	/*
+	**  Print the message as appropriate
+	*/
+
+	if (stat == EX_OK || stat == EX_TEMPFAIL)
+	{
+		extern char MsgBuf[];
+
+		message("%s", &statmsg[4]);
+		if (stat == EX_TEMPFAIL && e->e_xfp != NULL)
+			fprintf(e->e_xfp, "%s\n", &MsgBuf[4]);
+	}
+	else
+	{
+		char mbuf[8];
+
+		Errors++;
+		snprintf(mbuf, sizeof mbuf, "%.3s %%s", statmsg);
+		usrerr(mbuf, &statmsg[4]);
+	}
+
+	/*
+	**  Final cleanup.
+	**	Log a record of the transaction.  Compute the new
+	**	ExitStat -- if we already had an error, stick with
+	**	that.
+	*/
+
+	if (OpMode != MD_VERIFY && !bitset(EF_VRFYONLY, e->e_flags) &&
+	    LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6))
+		logdelivery(m, mci, &statmsg[4], ctladdr, xstart, e);
+
+	if (tTd(11, 2))
+		printf("giveresponse: stat=%d, e->e_message=%s\n",
+			stat, e->e_message == NULL ? "<NULL>" : e->e_message);
+
+	if (stat != EX_TEMPFAIL)
+		setstat(stat);
+	if (stat != EX_OK && (stat != EX_TEMPFAIL || e->e_message == NULL))
+	{
+		if (e->e_message != NULL)
+			free(e->e_message);
+		e->e_message = newstr(&statmsg[4]);
+	}
+	errno = 0;
+#if NAMED_BIND
+	h_errno = 0;
+#endif
+}
+/*
+**  LOGDELIVERY -- log the delivery in the system log
+**
+**	Care is taken to avoid logging lines that are too long, because
+**	some versions of syslog have an unfortunate proclivity for core
+**	dumping.  This is a hack, to be sure, that is at best empirical.
+**
+**	Parameters:
+**		m -- the mailer info.  Can be NULL for initial queue.
+**		mci -- the mailer connection info -- can be NULL if the
+**			log is occuring when no connection is active.
+**		stat -- the message to print for the status.
+**		ctladdr -- the controlling address for the to list.
+**		xstart -- the transaction start time, used for
+**			computing transaction delay.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		none
+*/
+
+void
+logdelivery(m, mci, stat, ctladdr, xstart, e)
+	MAILER *m;
+	register MCI *mci;
+	const char *stat;
+	ADDRESS *ctladdr;
+	time_t xstart;
+	register ENVELOPE *e;
+{
+	register char *bp;
+	register char *p;
+	int l;
+	char buf[1024];
+
+#  if (SYSLOG_BUFSIZE) >= 256
+	/* ctladdr: max 106 bytes */
+	bp = buf;
+	if (ctladdr != NULL)
+	{
+		snprintf(bp, SPACELEFT(buf, bp), ", ctladdr=%s",
+			shortenstring(ctladdr->q_paddr, 83));
+		bp += strlen(bp);
+		if (bitset(QGOODUID, ctladdr->q_flags))
+		{
+			(void) snprintf(bp, SPACELEFT(buf, bp), " (%d/%d)",
+					ctladdr->q_uid, ctladdr->q_gid);
+			bp += strlen(bp);
+		}
+	}
+
+	/* delay & xdelay: max 41 bytes */
+	snprintf(bp, SPACELEFT(buf, bp), ", delay=%s",
+		pintvl(curtime() - e->e_ctime, TRUE));
+	bp += strlen(bp);
+
+	if (xstart != (time_t) 0)
+	{
+		snprintf(bp, SPACELEFT(buf, bp), ", xdelay=%s",
+			pintvl(curtime() - xstart, TRUE));
+		bp += strlen(bp);
+	}
+
+	/* mailer: assume about 19 bytes (max 10 byte mailer name) */
+	if (m != NULL)
+	{
+		snprintf(bp, SPACELEFT(buf, bp), ", mailer=%s", m->m_name);
+		bp += strlen(bp);
+	}
+
+	/* relay: max 66 bytes for IPv4 addresses */
+	if (mci != NULL && mci->mci_host != NULL)
+	{
+# if DAEMON
+		extern SOCKADDR CurHostAddr;
+# endif
+
+		snprintf(bp, SPACELEFT(buf, bp), ", relay=%s",
+			shortenstring(mci->mci_host, 40));
+		bp += strlen(bp);
+
+# if DAEMON
+		if (CurHostAddr.sa.sa_family != 0)
+		{
+			snprintf(bp, SPACELEFT(buf, bp), " [%s]",
+				anynet_ntoa(&CurHostAddr));
+		}
+# endif
+	}
+	else if (strcmp(stat, "queued") != 0)
+	{
+		char *p = macvalue('h', e);
+
+		if (p != NULL && p[0] != '\0')
+		{
+			snprintf(bp, SPACELEFT(buf, bp), ", relay=%s",
+				shortenstring(p, 40));
+		}
+	}
+	bp += strlen(bp);
+
+#define STATLEN		(((SYSLOG_BUFSIZE) - 100) / 4)
+#if (STATLEN) < 63
+# undef STATLEN
+# define STATLEN	63
+#endif
+#if (STATLEN) > 203
+# undef STATLEN
+# define STATLEN	203
+#endif
+
+	/* stat: max 210 bytes */
+	if ((bp - buf) > (sizeof buf - ((STATLEN) + 20)))
+	{
+		/* desperation move -- truncate data */
+		bp = buf + sizeof buf - ((STATLEN) + 17);
+		strcpy(bp, "...");
+		bp += 3;
+	}
+
+	(void) strcpy(bp, ", stat=");
+	bp += strlen(bp);
+
+	(void) strcpy(bp, shortenstring(stat, (STATLEN)));
+
+	/* id, to: max 13 + TOBUFSIZE bytes */
+	l = SYSLOG_BUFSIZE - 100 - strlen(buf);
+	p = e->e_to;
+	while (strlen(p) >= (SIZE_T) l)
+	{
+		register char *q = strchr(p + l, ',');
+
+		if (q == NULL)
+			break;
+		sm_syslog(LOG_INFO, e->e_id,
+			"to=%.*s [more]%s",
+			++q - p, p, buf);
+		p = q;
+	}
+	sm_syslog(LOG_INFO, e->e_id, "to=%s%s", p, buf);
+
+#  else		/* we have a very short log buffer size */
+
+	l = SYSLOG_BUFSIZE - 85;
+	p = e->e_to;
+	while (strlen(p) >= (SIZE_T) l)
+	{
+		register char *q = strchr(p + l, ',');
+
+		if (q == NULL)
+			break;
+		sm_syslog(LOG_INFO, e->e_id,
+			"to=%.*s [more]",
+			++q - p, p);
+		p = q;
+	}
+	sm_syslog(LOG_INFO, e->e_id, "to=%s", p);
+
+	if (ctladdr != NULL)
+	{
+		bp = buf;
+		snprintf(bp, SPACELEFT(buf, bp), "ctladdr=%s",
+			shortenstring(ctladdr->q_paddr, 83));
+		bp += strlen(bp);
+		if (bitset(QGOODUID, ctladdr->q_flags))
+		{
+			(void) snprintf(bp, SPACELEFT(buf, bp), " (%d/%d)",
+					ctladdr->q_uid, ctladdr->q_gid);
+			bp += strlen(bp);
+		}
+		sm_syslog(LOG_INFO, e->e_id, "%s", buf);
+	}
+	bp = buf;
+	snprintf(bp, SPACELEFT(buf, bp), "delay=%s",
+		pintvl(curtime() - e->e_ctime, TRUE));
+	bp += strlen(bp);
+	if (xstart != (time_t) 0)
+	{
+		snprintf(bp, SPACELEFT(buf, bp), ", xdelay=%s",
+			pintvl(curtime() - xstart, TRUE));
+		bp += strlen(bp);
+	}
+
+	if (m != NULL)
+	{
+		snprintf(bp, SPACELEFT(buf, bp), ", mailer=%s", m->m_name);
+		bp += strlen(bp);
+	}
+	sm_syslog(LOG_INFO, e->e_id, "%.1000s", buf);
+
+	buf[0] = '\0';
+	bp = buf;
+	if (mci != NULL && mci->mci_host != NULL)
+	{
+# if DAEMON
+		extern SOCKADDR CurHostAddr;
+# endif
+
+		snprintf(bp, SPACELEFT(buf, bp), "relay=%.100s", mci->mci_host);
+		bp += strlen(bp);
+
+# if DAEMON
+		if (CurHostAddr.sa.sa_family != 0)
+			snprintf(bp, SPACELEFT(buf, bp), " [%.100s]",
+				anynet_ntoa(&CurHostAddr));
+# endif
+	}
+	else if (strcmp(stat, "queued") != 0)
+	{
+		char *p = macvalue('h', e);
+
+		if (p != NULL && p[0] != '\0')
+			snprintf(buf, sizeof buf, "relay=%.100s", p);
+	}
+	if (buf[0] != '\0')
+		sm_syslog(LOG_INFO, e->e_id, "%.1000s", buf);
+
+	sm_syslog(LOG_INFO, e->e_id, "stat=%s", shortenstring(stat, 63));
+#  endif /* short log buffer */
+}
+/*
+**  PUTFROMLINE -- output a UNIX-style from line (or whatever)
+**
+**	This can be made an arbitrary message separator by changing $l
+**
+**	One of the ugliest hacks seen by human eyes is contained herein:
+**	UUCP wants those stupid "remote from <host>" lines.  Why oh why
+**	does a well-meaning programmer such as myself have to deal with
+**	this kind of antique garbage????
+**
+**	Parameters:
+**		mci -- the connection information.
+**		e -- the envelope.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		outputs some text to fp.
+*/
+
+void
+putfromline(mci, e)
+	register MCI *mci;
+	ENVELOPE *e;
+{
+	char *template = UnixFromLine;
+	char buf[MAXLINE];
+	char xbuf[MAXLINE];
+
+	if (bitnset(M_NHDR, mci->mci_mailer->m_flags))
+		return;
+
+	if (bitnset(M_UGLYUUCP, mci->mci_mailer->m_flags))
+	{
+		char *bang;
+
+		expand("\201g", buf, sizeof buf, e);
+		bang = strchr(buf, '!');
+		if (bang == NULL)
+		{
+			char *at;
+			char hname[MAXNAME];
+
+		    	/*
+			** If we can construct a UUCP path, do so
+			*/
+
+			at = strrchr(buf, '@');
+			if (at == NULL)
+			{
+				expand( "\201k", hname, sizeof hname, e);
+				at = hname;
+			}
+			else
+				*at++ = '\0';
+			(void) snprintf(xbuf, sizeof xbuf,
+				"From %.800s  \201d remote from %.100s\n",
+				buf, at);
+		}
+		else
+		{
+			*bang++ = '\0';
+			(void) snprintf(xbuf, sizeof xbuf,
+				"From %.800s  \201d remote from %.100s\n",
+				bang, buf);
+			template = xbuf;
+		}
+	}
+	expand(template, buf, sizeof buf, e);
+	putxline(buf, strlen(buf), mci, PXLF_HEADER);
+}
+/*
+**  PUTBODY -- put the body of a message.
+**
+**	Parameters:
+**		mci -- the connection information.
+**		e -- the envelope to put out.
+**		separator -- if non-NULL, a message separator that must
+**			not be permitted in the resulting message.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		The message is written onto fp.
+*/
+
+/* values for output state variable */
+#define OS_HEAD		0	/* at beginning of line */
+#define OS_CR		1	/* read a carriage return */
+#define OS_INLINE	2	/* putting rest of line */
+
+void
+putbody(mci, e, separator)
+	register MCI *mci;
+	register ENVELOPE *e;
+	char *separator;
+{
+	char buf[MAXLINE];
+
+	/*
+	**  Output the body of the message
+	*/
+
+	if (e->e_dfp == NULL && bitset(EF_HAS_DF, e->e_flags))
+	{
+		char *df = queuename(e, 'd');
+
+		e->e_dfp = fopen(df, "r");
+		if (e->e_dfp == NULL)
+			syserr("putbody: Cannot open %s for %s from %s",
+				df, e->e_to, e->e_from.q_paddr);
+	}
+	if (e->e_dfp == NULL)
+	{
+		if (bitset(MCIF_INHEADER, mci->mci_flags))
+		{
+			putline("", mci);
+			mci->mci_flags &= ~MCIF_INHEADER;
+		}
+		putline("<<< No Message Collected >>>", mci);
+		goto endofmessage;
+	}
+	if (e->e_dfino == (ino_t) 0)
+	{
+		struct stat stbuf;
+
+		if (fstat(fileno(e->e_dfp), &stbuf) < 0)
+			e->e_dfino = -1;
+		else
+		{
+			e->e_dfdev = stbuf.st_dev;
+			e->e_dfino = stbuf.st_ino;
+		}
+	}
+	rewind(e->e_dfp);
+
+#if MIME8TO7
+	if (bitset(MCIF_CVT8TO7, mci->mci_flags))
+	{
+		char *boundaries[MAXMIMENESTING + 1];
+
+		/*
+		**  Do 8 to 7 bit MIME conversion.
+		*/
+
+		/* make sure it looks like a MIME message */
+		if (hvalue("MIME-Version", e->e_header) == NULL)
+			putline("MIME-Version: 1.0", mci);
+
+		if (hvalue("Content-Type", e->e_header) == NULL)
+		{
+			snprintf(buf, sizeof buf,
+				"Content-Type: text/plain; charset=%s",
+				defcharset(e));
+			putline(buf, mci);
+		}
+
+		/* now do the hard work */
+		boundaries[0] = NULL;
+		mime8to7(mci, e->e_header, e, boundaries, M87F_OUTER);
+	}
+# if MIME7TO8
+	else if (bitset(MCIF_CVT7TO8, mci->mci_flags))
+	{
+		mime7to8(mci, e->e_header, e);
+	}
+# endif
+	else
+#endif
+	{
+		int ostate;
+		register char *bp;
+		register char *pbp;
+		register int c;
+		register char *xp;
+		int padc;
+		char *buflim;
+		int pos = 0;
+		char peekbuf[10];
+
+		/* we can pass it through unmodified */
+		if (bitset(MCIF_INHEADER, mci->mci_flags))
+		{
+			putline("", mci);
+			mci->mci_flags &= ~MCIF_INHEADER;
+		}
+
+		/* determine end of buffer; allow for short mailer lines */
+		buflim = &buf[sizeof buf - 1];
+		if (mci->mci_mailer->m_linelimit > 0 &&
+		    mci->mci_mailer->m_linelimit < sizeof buf - 1)
+			buflim = &buf[mci->mci_mailer->m_linelimit - 1];
+
+		/* copy temp file to output with mapping */
+		ostate = OS_HEAD;
+		bp = buf;
+		pbp = peekbuf;
+		while (!ferror(mci->mci_out))
+		{
+			if (pbp > peekbuf)
+				c = *--pbp;
+			else if ((c = getc(e->e_dfp)) == EOF)
+				break;
+			if (bitset(MCIF_7BIT, mci->mci_flags))
+				c &= 0x7f;
+			switch (ostate)
+			{
+			  case OS_HEAD:
+#if _FFR_NONULLS
+				if (c == '\0' &&
+				    bitnset(M_NONULLS, mci->mci_mailer->m_flags))
+					break;
+#endif
+				if (c != '\r' && c != '\n' && bp < buflim)
+				{
+					*bp++ = c;
+					break;
+				}
+
+				/* check beginning of line for special cases */
+				*bp = '\0';
+				pos = 0;
+				padc = EOF;
+				if (buf[0] == 'F' &&
+				    bitnset(M_ESCFROM, mci->mci_mailer->m_flags) &&
+				    strncmp(buf, "From ", 5) == 0)
+				{
+					padc = '>';
+				}
+				if (buf[0] == '-' && buf[1] == '-' &&
+				    separator != NULL)
+				{
+					/* possible separator */
+					int sl = strlen(separator);
+
+					if (strncmp(&buf[2], separator, sl) == 0)
+						padc = ' ';
+				}
+				if (buf[0] == '.' &&
+				    bitnset(M_XDOT, mci->mci_mailer->m_flags))
+				{
+					padc = '.';
+				}
+
+				/* now copy out saved line */
+				if (TrafficLogFile != NULL)
+				{
+					fprintf(TrafficLogFile, "%05d >>> ",
+						(int) getpid());
+					if (padc != EOF)
+						putc(padc, TrafficLogFile);
+					for (xp = buf; xp < bp; xp++)
+						putc(*xp, TrafficLogFile);
+					if (c == '\n')
+						fputs(mci->mci_mailer->m_eol,
+						      TrafficLogFile);
+				}
+				if (padc != EOF)
+				{
+					putc(padc, mci->mci_out);
+					pos++;
+				}
+				for (xp = buf; xp < bp; xp++)
+					putc(*xp, mci->mci_out);
+				if (c == '\n')
+				{
+					fputs(mci->mci_mailer->m_eol,
+					      mci->mci_out);
+					pos = 0;
+				}
+				else
+				{
+					pos += bp - buf;
+					if (c != '\r')
+						*pbp++ = c;
+				}
+				bp = buf;
+
+				/* determine next state */
+				if (c == '\n')
+					ostate = OS_HEAD;
+				else if (c == '\r')
+					ostate = OS_CR;
+				else
+					ostate = OS_INLINE;
+				continue;
+
+			  case OS_CR:
+				if (c == '\n')
+				{
+					/* got CRLF */
+					fputs(mci->mci_mailer->m_eol, mci->mci_out);
+					if (TrafficLogFile != NULL)
+					{
+						fputs(mci->mci_mailer->m_eol,
+						      TrafficLogFile);
+					}
+					ostate = OS_HEAD;
+					continue;
+				}
+
+				/* had a naked carriage return */
+				*pbp++ = c;
+				c = '\r';
+				ostate = OS_INLINE;
+				goto putch;
+
+			  case OS_INLINE:
+				if (c == '\r')
+				{
+					ostate = OS_CR;
+					continue;
+				}
+#if _FFR_NONULLS
+				if (c == '\0' &&
+				    bitnset(M_NONULLS, mci->mci_mailer->m_flags))
+					break;
+#endif
+putch:
+				if (mci->mci_mailer->m_linelimit > 0 &&
+				    pos > mci->mci_mailer->m_linelimit &&
+				    c != '\n')
+				{
+					putc('!', mci->mci_out);
+					fputs(mci->mci_mailer->m_eol, mci->mci_out);
+					if (TrafficLogFile != NULL)
+					{
+						fprintf(TrafficLogFile, "!%s",
+							mci->mci_mailer->m_eol);
+					}
+					ostate = OS_HEAD;
+					*pbp++ = c;
+					continue;
+				}
+				if (c == '\n')
+				{
+					if (TrafficLogFile != NULL)
+						fputs(mci->mci_mailer->m_eol,
+						      TrafficLogFile);
+					fputs(mci->mci_mailer->m_eol, mci->mci_out);
+					pos = 0;
+					ostate = OS_HEAD;
+				}
+				else
+				{
+					if (TrafficLogFile != NULL)
+						putc(c, TrafficLogFile);
+					putc(c, mci->mci_out);
+					pos++;
+					ostate = OS_INLINE;
+				}
+				break;
+			}
+		}
+
+		/* make sure we are at the beginning of a line */
+		if (bp > buf)
+		{
+			if (TrafficLogFile != NULL)
+			{
+				for (xp = buf; xp < bp; xp++)
+					putc(*xp, TrafficLogFile);
+			}
+			for (xp = buf; xp < bp; xp++)
+				putc(*xp, mci->mci_out);
+			pos += bp - buf;
+		}
+		if (pos > 0)
+		{
+			if (TrafficLogFile != NULL)
+				fputs(mci->mci_mailer->m_eol, TrafficLogFile);
+			fputs(mci->mci_mailer->m_eol, mci->mci_out);
+		}
+	}
+
+	if (ferror(e->e_dfp))
+	{
+		syserr("putbody: df%s: read error", e->e_id);
+		ExitStat = EX_IOERR;
+	}
+
+endofmessage:
+	/* some mailers want extra blank line at end of message */
+	if (bitnset(M_BLANKEND, mci->mci_mailer->m_flags) &&
+	    buf[0] != '\0' && buf[0] != '\n')
+		putline("", mci);
+
+	(void) fflush(mci->mci_out);
+	if (ferror(mci->mci_out) && errno != EPIPE)
+	{
+		syserr("putbody: write error");
+		ExitStat = EX_IOERR;
+	}
+	errno = 0;
+}
+/*
+**  MAILFILE -- Send a message to a file.
+**
+**	If the file has the setuid/setgid bits set, but NO execute
+**	bits, sendmail will try to become the owner of that file
+**	rather than the real user.  Obviously, this only works if
+**	sendmail runs as root.
+**
+**	This could be done as a subordinate mailer, except that it
+**	is used implicitly to save messages in ~/dead.letter.  We
+**	view this as being sufficiently important as to include it
+**	here.  For example, if the system is dying, we shouldn't have
+**	to create another process plus some pipes to save the message.
+**
+**	Parameters:
+**		filename -- the name of the file to send to.
+**		ctladdr -- the controlling address header -- includes
+**			the userid/groupid to be when sending.
+**		sfflags -- flags for opening.
+**		e -- the current envelope.
+**
+**	Returns:
+**		The exit code associated with the operation.
+**
+**	Side Effects:
+**		none.
+*/
+
+static jmp_buf	CtxMailfileTimeout;
+static void	mailfiletimeout();
+
+int
+mailfile(filename, ctladdr, sfflags, e)
+	char *volatile filename;
+	ADDRESS *ctladdr;
+	volatile int sfflags;
+	register ENVELOPE *e;
+{
+	register FILE *f;
+	register pid_t pid = -1;
+	volatile int mode = ST_MODE_NOFILE;
+	bool suidwarn = geteuid() == 0;
+	EVENT *ev;
+
+	if (tTd(11, 1))
+	{
+		printf("mailfile %s\n  ctladdr=", filename);
+		printaddr(ctladdr, FALSE);
+	}
+
+	if (e->e_xfp != NULL)
+		fflush(e->e_xfp);
+
+	/*
+	**  Special case /dev/null.  This allows us to restrict file
+	**  delivery to regular files only.
+	*/
+
+	if (strcmp(filename, "/dev/null") == 0)
+		return EX_OK;
+
+	/*
+	**  Fork so we can change permissions here.
+	**	Note that we MUST use fork, not vfork, because of
+	**	the complications of calling subroutines, etc.
+	*/
+
+	DOFORK(fork);
+
+	if (pid < 0)
+		return (EX_OSERR);
+	else if (pid == 0)
+	{
+		/* child -- actually write to file */
+		struct stat stb;
+		MCI mcibuf;
+		volatile int oflags = O_WRONLY|O_APPEND;
+
+		if (e->e_lockfp != NULL)
+			(void) close(fileno(e->e_lockfp));
+
+		(void) setsignal(SIGINT, SIG_DFL);
+		(void) setsignal(SIGHUP, SIG_DFL);
+		(void) setsignal(SIGTERM, SIG_DFL);
+		(void) umask(OldUmask);
+		e->e_to = filename;
+		ExitStat = EX_OK;
+
+		if (setjmp(CtxMailfileTimeout) != 0)
+		{
+			exit(EX_TEMPFAIL);
+		}
+
+		if (TimeOuts.to_fileopen > 0)
+			ev = setevent(TimeOuts.to_fileopen, mailfiletimeout, 0);
+		else
+			ev = NULL;
+
+#ifdef HASLSTAT
+		if (lstat(filename, &stb) < 0)
+#else
+		if (stat(filename, &stb) < 0)
+#endif
+		{
+			stb.st_mode = ST_MODE_NOFILE;
+			mode = FileMode;
+			oflags |= O_CREAT|O_EXCL;
+		}
+		else if (bitset(0111, stb.st_mode) || stb.st_nlink != 1 ||
+			 (SafeFileEnv != NULL && !S_ISREG(stb.st_mode)))
+			exit(EX_CANTCREAT);
+		if (mode == ST_MODE_NOFILE)
+			mode = stb.st_mode;
+
+		/* limit the errors to those actually caused in the child */
+		errno = 0;
+		ExitStat = EX_OK;
+
+		if (ctladdr != NULL || bitset(SFF_RUNASREALUID, sfflags))
+		{
+			/* ignore setuid and setgid bits */
+			mode &= ~(S_ISGID|S_ISUID);
+		}
+
+		/* we have to open the dfile BEFORE setuid */
+		if (e->e_dfp == NULL && bitset(EF_HAS_DF, e->e_flags))
+		{
+			char *df = queuename(e, 'd');
+
+			e->e_dfp = fopen(df, "r");
+			if (e->e_dfp == NULL)
+			{
+				syserr("mailfile: Cannot open %s for %s from %s",
+					df, e->e_to, e->e_from.q_paddr);
+			}
+		}
+
+		/* select a new user to run as */
+		if (!bitset(SFF_RUNASREALUID, sfflags))
+		{
+			if (bitset(S_ISUID, mode))
+			{
+				RealUserName = NULL;
+				RealUid = stb.st_uid;
+			}
+			else if (ctladdr != NULL && ctladdr->q_uid != 0)
+			{
+				if (ctladdr->q_ruser != NULL)
+					RealUserName = ctladdr->q_ruser;
+				else
+					RealUserName = ctladdr->q_user;
+				RealUid = ctladdr->q_uid;
+			}
+			else if (FileMailer != NULL && FileMailer->m_uid != 0)
+			{
+				RealUserName = DefUser;
+				RealUid = FileMailer->m_uid;
+			}
+			else
+			{
+				RealUserName = DefUser;
+				RealUid = DefUid;
+			}
+
+			/* select a new group to run as */
+			if (bitset(S_ISGID, mode))
+				RealGid = stb.st_gid;
+			else if (ctladdr != NULL && ctladdr->q_uid != 0)
+				RealGid = ctladdr->q_gid;
+			else if (FileMailer != NULL && FileMailer->m_gid != 0)
+				RealGid = FileMailer->m_gid;
+			else
+				RealGid = DefGid;
+		}
+
+		/* last ditch */
+		if (!bitset(SFF_ROOTOK, sfflags))
+		{
+			if (RealUid == 0)
+				RealUid = DefUid;
+			if (RealGid == 0)
+				RealGid = DefGid;
+		}
+
+		/* set group id list (needs /etc/group access) */
+		if (RealUserName != NULL && !DontInitGroups)
+			(void) initgroups(RealUserName, RealGid);
+
+		/* if you have a safe environment, go into it */
+		if (SafeFileEnv != NULL && SafeFileEnv[0] != '\0')
+		{
+			int i;
+
+			if (chroot(SafeFileEnv) < 0)
+			{
+				syserr("mailfile: Cannot chroot(%s)",
+					SafeFileEnv);
+				exit(EX_CANTCREAT);
+			}
+			i = strlen(SafeFileEnv);
+			if (strncmp(SafeFileEnv, filename, i) == 0)
+				filename += i;
+		}
+		if (chdir("/") < 0)
+			syserr("mailfile: cannot chdir(/)");
+
+		/* now reset the group and user ids */
+		endpwent();
+		if (setgid(RealGid) < 0 && suidwarn)
+			syserr("mailfile: setgid(%ld) failed", (long) RealGid);
+		vendor_set_uid(RealUid);
+		if (setuid(RealUid) < 0 && suidwarn)
+			syserr("mailfile: setuid(%ld) failed", (long) RealUid);
+
+		sfflags |= SFF_NOPATHCHECK|SFF_NOLINK;
+		sfflags &= ~SFF_OPENASROOT;
+		f = safefopen(filename, oflags, FileMode, sfflags);
+		if (f == NULL)
+		{
+			message("554 cannot open: %s", errstring(errno));
+			exit(EX_CANTCREAT);
+		}
+		if (filechanged(filename, fileno(f), &stb, sfflags))
+		{
+			message("554 file changed after open");
+			exit(EX_CANTCREAT);
+		}
+		if (fstat(fileno(f), &stb) < 0)
+		{
+			message("554 cannot fstat %s", errstring(errno));
+			exit(EX_CANTCREAT);
+		}
+
+		if (ev != NULL)
+			clrevent(ev);
+
+		bzero(&mcibuf, sizeof mcibuf);
+		mcibuf.mci_mailer = FileMailer;
+		mcibuf.mci_out = f;
+		if (bitnset(M_7BITS, FileMailer->m_flags))
+			mcibuf.mci_flags |= MCIF_7BIT;
+
+		putfromline(&mcibuf, e);
+		(*e->e_puthdr)(&mcibuf, e->e_header, e);
+		(*e->e_putbody)(&mcibuf, e, NULL);
+		putline("\n", &mcibuf);
+		if (fflush(f) < 0 || ferror(f))
+		{
+			message("451 I/O error: %s", errstring(errno));
+			setstat(EX_IOERR);
+		}
+
+		/* reset ISUID & ISGID bits for paranoid systems */
+#if HASFCHMOD
+		(void) fchmod(fileno(f), (MODE_T) stb.st_mode);
+#else
+		(void) chmod(filename, (MODE_T) stb.st_mode);
+#endif
+		(void) xfclose(f, "mailfile", filename);
+		(void) fflush(stdout);
+		setuid(RealUid);
+		exit(ExitStat);
+		/*NOTREACHED*/
+	}
+	else
+	{
+		/* parent -- wait for exit status */
+		int st;
+
+		st = waitfor(pid);
+		if (WIFEXITED(st))
+			return (WEXITSTATUS(st));
+		else
+		{
+			syserr("child died on signal %d", st);
+			return (EX_UNAVAILABLE);
+		}
+		/*NOTREACHED*/
+	}
+	return EX_UNAVAILABLE;	/* avoid compiler warning on IRIX */
+}
+
+static void
+mailfiletimeout()
+{
+	longjmp(CtxMailfileTimeout, 1);
+}
+/*
+**  HOSTSIGNATURE -- return the "signature" for a host.
+**
+**	The signature describes how we are going to send this -- it
+**	can be just the hostname (for non-Internet hosts) or can be
+**	an ordered list of MX hosts.
+**
+**	Parameters:
+**		m -- the mailer describing this host.
+**		host -- the host name.
+**		e -- the current envelope.
+**
+**	Returns:
+**		The signature for this host.
+**
+**	Side Effects:
+**		Can tweak the symbol table.
+*/
+
+char *
+hostsignature(m, host, e)
+	register MAILER *m;
+	char *host;
+	ENVELOPE *e;
+{
+	register char *p;
+	register STAB *s;
+	int i;
+	int len;
+#if NAMED_BIND
+	int nmx;
+	char *hp;
+	char *endp;
+	int oldoptions = _res.options;
+	char *mxhosts[MAXMXHOSTS + 1];
+#endif
+
+	/*
+	**  Check to see if this uses IPC -- if not, it can't have MX records.
+	*/
+
+	p = m->m_mailer;
+	if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0)
+	{
+		/* just an ordinary mailer */
+		return host;
+	}
+
+	/*
+	**  Look it up in the symbol table.
+	*/
+
+	s = stab(host, ST_HOSTSIG, ST_ENTER);
+	if (s->s_hostsig != NULL)
+		return s->s_hostsig;
+
+	/*
+	**  Not already there -- create a signature.
+	*/
+
+#if NAMED_BIND
+	if (ConfigLevel < 2)
+		_res.options &= ~(RES_DEFNAMES | RES_DNSRCH);	/* XXX */
+
+	for (hp = host; hp != NULL; hp = endp)
+	{
+		endp = strchr(hp, ':');
+		if (endp != NULL)
+			*endp = '\0';
+
+		if (bitnset(M_NOMX, m->m_flags))
+		{
+			/* skip MX lookups */
+			nmx = 1;
+			mxhosts[0] = hp;
+		}
+		else
+		{
+			auto int rcode;
+
+			nmx = getmxrr(hp, mxhosts, TRUE, &rcode);
+			if (nmx <= 0)
+			{
+				register MCI *mci;
+
+				/* update the connection info for this host */
+				mci = mci_get(hp, m);
+				mci->mci_errno = errno;
+				mci->mci_herrno = h_errno;
+				mci->mci_lastuse = curtime();
+				mci_setstat(mci, rcode, NULL, NULL);
+
+				/* use the original host name as signature */
+				nmx = 1;
+				mxhosts[0] = hp;
+			}
+		}
+
+		len = 0;
+		for (i = 0; i < nmx; i++)
+		{
+			len += strlen(mxhosts[i]) + 1;
+		}
+		if (s->s_hostsig != NULL)
+			len += strlen(s->s_hostsig) + 1;
+		p = xalloc(len);
+		if (s->s_hostsig != NULL)
+		{
+			(void) strcpy(p, s->s_hostsig);
+			free(s->s_hostsig);
+			s->s_hostsig = p;
+			p += strlen(p);
+			*p++ = ':';
+		}
+		else
+			s->s_hostsig = p;
+		for (i = 0; i < nmx; i++)
+		{
+			if (i != 0)
+				*p++ = ':';
+			strcpy(p, mxhosts[i]);
+			p += strlen(p);
+		}
+		if (endp != NULL)
+			*endp++ = ':';
+	}
+	makelower(s->s_hostsig);
+	if (ConfigLevel < 2)
+		_res.options = oldoptions;
+#else
+	/* not using BIND -- the signature is just the host name */
+	s->s_hostsig = host;
+#endif
+	if (tTd(17, 1))
+		printf("hostsignature(%s) = %s\n", host, s->s_hostsig);
+	return s->s_hostsig;
+}
diff --git a/src/domain.c b/src/domain.c
new file mode 100644
index 0000000..2031726
--- /dev/null
+++ b/src/domain.c
@@ -0,0 +1,901 @@
+/*
+ * Copyright (c) 1986, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "sendmail.h"
+
+#ifndef lint
+#if NAMED_BIND
+static char sccsid[] = "@(#)domain.c	8.68 (Berkeley) 8/2/97 (with name server)";
+#else
+static char sccsid[] = "@(#)domain.c	8.68 (Berkeley) 8/2/97 (without name server)";
+#endif
+#endif /* not lint */
+
+#if NAMED_BIND
+
+#include <errno.h>
+#include <resolv.h>
+#include <arpa/inet.h>
+
+/*
+**  The standard udp packet size PACKETSZ (512) is not sufficient for some
+**  nameserver answers containing very many resource records. The resolver
+**  may switch to tcp and retry if it detects udp packet overflow.
+**  Also note that the resolver routines res_query and res_search return
+**  the size of the *un*truncated answer in case the supplied answer buffer
+**  it not big enough to accommodate the entire answer.
+*/
+
+#ifndef MAXPACKET
+# define MAXPACKET 8192		/* max packet size used internally by BIND */
+#endif
+
+typedef union
+{
+	HEADER	qb1;
+	u_char	qb2[MAXPACKET];
+} querybuf;
+
+#ifndef MXHOSTBUFSIZE
+# define MXHOSTBUFSIZE	(128 * MAXMXHOSTS)
+#endif
+
+static char	MXHostBuf[MXHOSTBUFSIZE];
+
+#ifndef MAXDNSRCH
+# define MAXDNSRCH	6	/* number of possible domains to search */
+#endif
+
+#ifndef MAX
+# define MAX(a, b)	((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef NO_DATA
+# define NO_DATA	NO_ADDRESS
+#endif
+
+#ifndef HFIXEDSZ
+# define HFIXEDSZ	12	/* sizeof(HEADER) */
+#endif
+
+#define MAXCNAMEDEPTH	10	/* maximum depth of CNAME recursion */
+
+#if defined(__RES) && (__RES >= 19940415)
+# define RES_UNC_T	char *
+#else
+# define RES_UNC_T	u_char *
+#endif
+/*
+**  GETMXRR -- get MX resource records for a domain
+**
+**	Parameters:
+**		host -- the name of the host to MX.
+**		mxhosts -- a pointer to a return buffer of MX records.
+**		droplocalhost -- If TRUE, all MX records less preferred
+**			than the local host (as determined by $=w) will
+**			be discarded.
+**		rcode -- a pointer to an EX_ status code.
+**
+**	Returns:
+**		The number of MX records found.
+**		-1 if there is an internal failure.
+**		If no MX records are found, mxhosts[0] is set to host
+**			and 1 is returned.
+*/
+
+int
+getmxrr(host, mxhosts, droplocalhost, rcode)
+	char *host;
+	char **mxhosts;
+	bool droplocalhost;
+	int *rcode;
+{
+	register u_char *eom, *cp;
+	register int i, j, n;
+	int nmx = 0;
+	register char *bp;
+	HEADER *hp;
+	querybuf answer;
+	int ancount, qdcount, buflen;
+	bool seenlocal = FALSE;
+	u_short pref, type;
+	u_short localpref = 256;
+	char *fallbackMX = FallBackMX;
+	bool trycanon = FALSE;
+	int (*resfunc)();
+	extern int res_query(), res_search();
+	u_short prefer[MAXMXHOSTS];
+	int weight[MAXMXHOSTS];
+	extern int mxrand __P((char *));
+
+	if (tTd(8, 2))
+		printf("getmxrr(%s, droplocalhost=%d)\n", host, droplocalhost);
+
+	if (fallbackMX != NULL && droplocalhost &&
+	    wordinclass(fallbackMX, 'w'))
+	{
+		/* don't use fallback for this pass */
+		fallbackMX = NULL;
+	}
+
+	*rcode = EX_OK;
+
+	/* efficiency hack -- numeric or non-MX lookups */
+	if (host[0] == '[')
+		goto punt;
+
+	/*
+	**  If we don't have MX records in our host switch, don't
+	**  try for MX records.  Note that this really isn't "right",
+	**  since we might be set up to try NIS first and then DNS;
+	**  if the host is found in NIS we really shouldn't be doing
+	**  MX lookups.  However, that should be a degenerate case.
+	*/
+
+	if (!UseNameServer)
+		goto punt;
+	if (HasWildcardMX && ConfigLevel >= 6)
+		resfunc = res_query;
+	else
+		resfunc = res_search;
+
+	errno = 0;
+	n = (*resfunc)(host, C_IN, T_MX, (u_char *) &answer, sizeof(answer));
+	if (n < 0)
+	{
+		if (tTd(8, 1))
+			printf("getmxrr: res_search(%s) failed (errno=%d, h_errno=%d)\n",
+			    (host == NULL) ? "<NULL>" : host, errno, h_errno);
+		switch (h_errno)
+		{
+		  case NO_DATA:
+			trycanon = TRUE;
+			/* fall through */
+
+		  case NO_RECOVERY:
+			/* no MX data on this host */
+			goto punt;
+
+		  case HOST_NOT_FOUND:
+#if BROKEN_RES_SEARCH
+		  case 0:	/* Ultrix resolver retns failure w/ h_errno=0 */
+#endif
+			/* host doesn't exist in DNS; might be in /etc/hosts */
+			trycanon = TRUE;
+			*rcode = EX_NOHOST;
+			goto punt;
+
+		  case TRY_AGAIN:
+		  case -1:
+			/* couldn't connect to the name server */
+			if (fallbackMX != NULL)
+			{
+				/* name server is hosed -- push to fallback */
+				mxhosts[nmx++] = fallbackMX;
+				return nmx;
+			}
+			/* it might come up later; better queue it up */
+			*rcode = EX_TEMPFAIL;
+			break;
+
+		  default:
+			syserr("getmxrr: res_search (%s) failed with impossible h_errno (%d)\n",
+				host, h_errno);
+			*rcode = EX_OSERR;
+			break;
+		}
+
+		/* irreconcilable differences */
+		return (-1);
+	}
+
+	/* avoid problems after truncation in tcp packets */
+	if (n > sizeof(answer))
+		n = sizeof(answer);
+
+	/* find first satisfactory answer */
+	hp = (HEADER *)&answer;
+	cp = (u_char *)&answer + HFIXEDSZ;
+	eom = (u_char *)&answer + n;
+	for (qdcount = ntohs(hp->qdcount); qdcount--; cp += n + QFIXEDSZ)
+		if ((n = dn_skipname(cp, eom)) < 0)
+			goto punt;
+	buflen = sizeof(MXHostBuf) - 1;
+	bp = MXHostBuf;
+	ancount = ntohs(hp->ancount);
+	while (--ancount >= 0 && cp < eom && nmx < MAXMXHOSTS - 1)
+	{
+		if ((n = dn_expand((u_char *)&answer,
+		    eom, cp, (RES_UNC_T) bp, buflen)) < 0)
+			break;
+		cp += n;
+		GETSHORT(type, cp);
+ 		cp += INT16SZ + INT32SZ;
+		GETSHORT(n, cp);
+		if (type != T_MX)
+		{
+			if (tTd(8, 8) || _res.options & RES_DEBUG)
+				printf("unexpected answer type %d, size %d\n",
+				    type, n);
+			cp += n;
+			continue;
+		}
+		GETSHORT(pref, cp);
+		if ((n = dn_expand((u_char *)&answer, eom, cp,
+				   (RES_UNC_T) bp, buflen)) < 0)
+			break;
+		cp += n;
+		if (wordinclass(bp, 'w'))
+		{
+			if (tTd(8, 3))
+				printf("found localhost (%s) in MX list, pref=%d\n",
+					bp, pref);
+			if (droplocalhost)
+			{
+				if (!seenlocal || pref < localpref)
+					localpref = pref;
+				seenlocal = TRUE;
+				continue;
+			}
+			weight[nmx] = 0;
+		}
+		else
+			weight[nmx] = mxrand(bp);
+		prefer[nmx] = pref;
+		mxhosts[nmx++] = bp;
+		n = strlen(bp);
+		bp += n;
+		if (bp[-1] != '.')
+		{
+			*bp++ = '.';
+			n++;
+		}
+		*bp++ = '\0';
+		buflen -= n + 1;
+	}
+
+	/* sort the records */
+	for (i = 0; i < nmx; i++)
+	{
+		for (j = i + 1; j < nmx; j++)
+		{
+			if (prefer[i] > prefer[j] ||
+			    (prefer[i] == prefer[j] && weight[i] > weight[j]))
+			{
+				register int temp;
+				register char *temp1;
+
+				temp = prefer[i];
+				prefer[i] = prefer[j];
+				prefer[j] = temp;
+				temp1 = mxhosts[i];
+				mxhosts[i] = mxhosts[j];
+				mxhosts[j] = temp1;
+				temp = weight[i];
+				weight[i] = weight[j];
+				weight[j] = temp;
+			}
+		}
+		if (seenlocal && prefer[i] >= localpref)
+		{
+			/* truncate higher preference part of list */
+			nmx = i;
+		}
+	}
+
+	/* delete duplicates from list (yes, some bozos have duplicates) */
+	for (i = 0; i < nmx - 1; )
+	{
+		if (strcasecmp(mxhosts[i], mxhosts[i + 1]) != 0)
+			i++;
+		else
+		{
+			/* compress out duplicate */
+			for (j = i + 1; j < nmx; j++)
+				mxhosts[j] = mxhosts[j + 1];
+			nmx--;
+		}
+	}
+
+	if (nmx == 0)
+	{
+punt:
+		if (seenlocal &&
+		    (!TryNullMXList || sm_gethostbyname(host) == NULL))
+		{
+			/*
+			**  If we have deleted all MX entries, this is
+			**  an error -- we should NEVER send to a host that
+			**  has an MX, and this should have been caught
+			**  earlier in the config file.
+			**
+			**  Some sites prefer to go ahead and try the
+			**  A record anyway; that case is handled by
+			**  setting TryNullMXList.  I believe this is a
+			**  bad idea, but it's up to you....
+			*/
+
+			*rcode = EX_CONFIG;
+			syserr("MX list for %s points back to %s",
+				host, MyHostName);
+			return -1;
+		}
+		if (strlen(host) >= (SIZE_T) sizeof MXHostBuf)
+		{
+			*rcode = EX_CONFIG;
+			syserr("Host name %s too long", shortenstring(host, 203));
+			return -1;
+		}
+		snprintf(MXHostBuf, sizeof MXHostBuf, "%s", host);
+		mxhosts[0] = MXHostBuf;
+		if (host[0] == '[')
+		{
+			register char *p;
+
+			/* this may be an MX suppression-style address */
+			p = strchr(MXHostBuf, ']');
+			if (p != NULL)
+			{
+				*p = '\0';
+				if (inet_addr(&MXHostBuf[1]) != INADDR_NONE)
+				{
+					nmx++;
+					*p = ']';
+				}
+				else
+				{
+					trycanon = TRUE;
+					mxhosts[0]++;
+				}
+			}
+		}
+		if (trycanon &&
+		    getcanonname(mxhosts[0], sizeof MXHostBuf - 2, FALSE))
+		{
+			bp = &MXHostBuf[strlen(MXHostBuf)];
+			if (bp[-1] != '.')
+			{
+				*bp++ = '.';
+				*bp = '\0';
+			}
+			nmx = 1;
+		}
+	}
+
+	/* if we have a default lowest preference, include that */
+	if (fallbackMX != NULL && !seenlocal)
+		mxhosts[nmx++] = fallbackMX;
+
+	return (nmx);
+}
+/*
+**  MXRAND -- create a randomizer for equal MX preferences
+**
+**	If two MX hosts have equal preferences we want to randomize
+**	the selection.  But in order for signatures to be the same,
+**	we need to randomize the same way each time.  This function
+**	computes a pseudo-random hash function from the host name.
+**
+**	Parameters:
+**		host -- the name of the host.
+**
+**	Returns:
+**		A random but repeatable value based on the host name.
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+mxrand(host)
+	register char *host;
+{
+	int hfunc;
+	static unsigned int seed;
+
+	if (seed == 0)
+	{
+		seed = (int) curtime() & 0xffff;
+		if (seed == 0)
+			seed++;
+	}
+
+	if (tTd(17, 9))
+		printf("mxrand(%s)", host);
+
+	hfunc = seed;
+	while (*host != '\0')
+	{
+		int c = *host++;
+
+		if (isascii(c) && isupper(c))
+			c = tolower(c);
+		hfunc = ((hfunc << 1) ^ c) % 2003;
+	}
+
+	hfunc &= 0xff;
+	hfunc++;
+
+	if (tTd(17, 9))
+		printf(" = %d\n", hfunc);
+	return hfunc;
+}
+/*
+**  BESTMX -- find the best MX for a name
+**
+**	This is really a hack, but I don't see any obvious way
+**	to generalize it at the moment.
+*/
+
+char *
+bestmx_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	int nmx;
+	auto int rcode;
+	int saveopts = _res.options;
+	char *mxhosts[MAXMXHOSTS + 1];
+
+	_res.options &= ~(RES_DNSRCH|RES_DEFNAMES);
+	nmx = getmxrr(name, mxhosts, FALSE, &rcode);
+	_res.options = saveopts;
+	if (nmx <= 0)
+		return NULL;
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, name, strlen(name), NULL);
+	else
+		return map_rewrite(map, mxhosts[0], strlen(mxhosts[0]), av);
+}
+/*
+**  DNS_GETCANONNAME -- get the canonical name for named host using DNS
+**
+**	This algorithm tries to be smart about wildcard MX records.
+**	This is hard to do because DNS doesn't tell is if we matched
+**	against a wildcard or a specific MX.
+**	
+**	We always prefer A & CNAME records, since these are presumed
+**	to be specific.
+**
+**	If we match an MX in one pass and lose it in the next, we use
+**	the old one.  For example, consider an MX matching *.FOO.BAR.COM.
+**	A hostname bletch.foo.bar.com will match against this MX, but
+**	will stop matching when we try bletch.bar.com -- so we know
+**	that bletch.foo.bar.com must have been right.  This fails if
+**	there was also an MX record matching *.BAR.COM, but there are
+**	some things that just can't be fixed.
+**
+**	Parameters:
+**		host -- a buffer containing the name of the host.
+**			This is a value-result parameter.
+**		hbsize -- the size of the host buffer.
+**		trymx -- if set, try MX records as well as A and CNAME.
+**		statp -- pointer to place to store status.
+**
+**	Returns:
+**		TRUE -- if the host matched.
+**		FALSE -- otherwise.
+*/
+
+bool
+dns_getcanonname(host, hbsize, trymx, statp)
+	char *host;
+	int hbsize;
+	bool trymx;
+	int *statp;
+{
+	register u_char *eom, *ap;
+	register char *cp;
+	register int n; 
+	HEADER *hp;
+	querybuf answer;
+	int ancount, qdcount;
+	int ret;
+	char **domain;
+	int type;
+	char **dp;
+	char *mxmatch;
+	bool amatch;
+	bool gotmx = FALSE;
+	int qtype;
+	int loopcnt;
+	char *xp;
+	char nbuf[MAX(MAXPACKET, MAXDNAME*2+2)];
+	char *searchlist[MAXDNSRCH+2];
+	extern char *gethostalias();
+
+	if (tTd(8, 2))
+		printf("dns_getcanonname(%s, trymx=%d)\n", host, trymx);
+
+	if ((_res.options & RES_INIT) == 0 && res_init() == -1)
+	{
+		*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+
+	/*
+	**  Initialize domain search list.  If there is at least one
+	**  dot in the name, search the unmodified name first so we
+	**  find "vse.CS" in Czechoslovakia instead of in the local
+	**  domain (e.g., vse.CS.Berkeley.EDU).
+	**
+	**  Older versions of the resolver could create this
+	**  list by tearing apart the host name.
+	*/
+
+	loopcnt = 0;
+cnameloop:
+	/* Check for dots in the name */
+	for (cp = host, n = 0; *cp != '\0'; cp++)
+		if (*cp == '.')
+			n++;
+
+	/*
+	**  If this is a simple name, determine whether it matches an 
+	**  alias in the file defined by the environment variable HOSTALIASES.
+	*/
+	if (n == 0 && (xp = gethostalias(host)) != NULL)
+	{
+		if (loopcnt++ > MAXCNAMEDEPTH)
+		{
+			syserr("loop in ${HOSTALIASES} file");
+		}
+		else
+		{
+			strncpy(host, xp, hbsize);
+			host[hbsize - 1] = '\0';
+			goto cnameloop;
+		}
+	}
+
+	/*
+	**  Build the search list.  
+	**	If there is at least one dot in name, start with a null
+	**	domain to search the unmodified name first.
+	**	If name does not end with a dot and search up local domain
+	**	tree desired, append each local domain component to the
+	**	search list; if name contains no dots and default domain
+	**	name is desired, append default domain name to search list;
+	**	else if name ends in a dot, remove that dot.
+	*/
+
+	dp = searchlist;
+	if (n > 0)
+		*dp++ = "";
+	if (n >= 0 && *--cp != '.' && bitset(RES_DNSRCH, _res.options))
+	{
+		for (domain = _res.dnsrch; *domain != NULL; )
+			*dp++ = *domain++;
+	}
+	else if (n == 0 && bitset(RES_DEFNAMES, _res.options))
+	{
+		*dp++ = _res.defdname;
+	}
+	else if (*cp == '.')
+	{
+		*cp = '\0';
+	}
+	*dp = NULL;
+
+	/*
+	**  Now loop through the search list, appending each domain in turn
+	**  name and searching for a match.
+	*/
+
+	mxmatch = NULL;
+	qtype = T_ANY;
+
+	for (dp = searchlist; *dp != NULL; )
+	{
+		if (qtype == T_ANY)
+			gotmx = FALSE;
+		if (tTd(8, 5))
+			printf("dns_getcanonname: trying %s.%s (%s)\n",
+				host, *dp,
+				qtype == T_ANY ? "ANY" : qtype == T_A ? "A" :
+				qtype == T_MX ? "MX" : "???");
+		ret = res_querydomain(host, *dp, C_IN, qtype,
+				      answer.qb2, sizeof(answer.qb2));
+		if (ret <= 0)
+		{
+			if (tTd(8, 7))
+				printf("\tNO: errno=%d, h_errno=%d\n",
+					errno, h_errno);
+
+			if (errno == ECONNREFUSED || h_errno == TRY_AGAIN)
+			{
+				/* the name server seems to be down */
+				h_errno = TRY_AGAIN;
+				*statp = EX_TEMPFAIL;
+				return FALSE;
+			}
+
+			if (h_errno != HOST_NOT_FOUND)
+			{
+				/* might have another type of interest */
+				if (qtype == T_ANY)
+				{
+					qtype = T_A;
+					continue;
+				}
+				else if (qtype == T_A && !gotmx && trymx)
+				{
+					qtype = T_MX;
+					continue;
+				}
+			}
+
+			/* definite no -- try the next domain */
+			dp++;
+			qtype = T_ANY;
+			continue;
+		}
+		else if (tTd(8, 7))
+			printf("\tYES\n");
+
+		/* avoid problems after truncation in tcp packets */
+		if (ret > sizeof(answer))
+			ret = sizeof(answer);
+
+		/*
+		**  Appear to have a match.  Confirm it by searching for A or
+		**  CNAME records.  If we don't have a local domain
+		**  wild card MX record, we will accept MX as well.
+		*/
+
+		hp = (HEADER *) &answer;
+		ap = (u_char *) &answer + HFIXEDSZ;
+		eom = (u_char *) &answer + ret;
+
+		/* skip question part of response -- we know what we asked */
+		for (qdcount = ntohs(hp->qdcount); qdcount--; ap += ret + QFIXEDSZ)
+		{
+			if ((ret = dn_skipname(ap, eom)) < 0)
+			{
+				if (tTd(8, 20))
+					printf("qdcount failure (%d)\n",
+						ntohs(hp->qdcount));
+				*statp = EX_SOFTWARE;
+				return FALSE;		/* ???XXX??? */
+			}
+		}
+
+		amatch = FALSE;
+		for (ancount = ntohs(hp->ancount); --ancount >= 0 && ap < eom;
+									ap += n)
+		{
+			n = dn_expand((u_char *) &answer, eom, ap,
+				      (RES_UNC_T) nbuf, sizeof nbuf);
+			if (n < 0)
+				break;
+			ap += n;
+			GETSHORT(type, ap);
+			ap += INT16SZ + INT32SZ;
+			GETSHORT(n, ap);
+			switch (type)
+			{
+			  case T_MX:
+				gotmx = TRUE;
+				if (**dp != '\0' && HasWildcardMX)
+				{
+					/*
+					**  If we are using MX matches and have
+					**  not yet gotten one, save this one
+					**  but keep searching for an A or 
+					**  CNAME match.
+					*/
+
+					if (trymx && mxmatch == NULL)
+						mxmatch = *dp;
+					continue;
+				}
+
+				/*
+				**  If we did not append a domain name, this
+				**  must have been a canonical name to start
+				**  with.  Even if we did append a domain name,
+				**  in the absence of a wildcard MX this must
+				**  still be a real MX match.
+				**  Such MX matches are as good as an A match,
+				**  fall through.
+				*/
+
+			  case T_A:
+				/* Flag that a good match was found */
+				amatch = TRUE;
+
+				/* continue in case a CNAME also exists */
+				continue;
+
+			  case T_CNAME:
+				if (DontExpandCnames)
+				{
+					/* got CNAME -- guaranteed canonical */
+					amatch = TRUE;
+					break;
+				}
+
+				if (loopcnt++ > MAXCNAMEDEPTH)
+				{
+					/*XXX should notify postmaster XXX*/
+					message("DNS failure: CNAME loop for %s",
+						host);
+					if (CurEnv->e_message == NULL)
+					{
+						char ebuf[MAXLINE];
+
+						snprintf(ebuf, sizeof ebuf,
+							"Deferred: DNS failure: CNAME loop for %.100s",
+							host);
+						CurEnv->e_message = newstr(ebuf);
+					}
+					h_errno = NO_RECOVERY;
+					*statp = EX_CONFIG;
+					return FALSE;
+				}
+
+				/* value points at name */
+				if ((ret = dn_expand((u_char *)&answer,
+				    eom, ap, (RES_UNC_T) nbuf, sizeof(nbuf))) < 0)
+					break;
+				(void)strncpy(host, nbuf, hbsize); /* XXX */
+				host[hbsize - 1] = '\0';
+
+				/*
+				**  RFC 1034 section 3.6 specifies that CNAME
+				**  should point at the canonical name -- but
+				**  urges software to try again anyway.
+				*/
+
+				goto cnameloop;
+
+			  default:
+				/* not a record of interest */
+				continue;
+			}
+		}
+
+		if (amatch)
+		{
+			/* 
+			**  Got a good match -- either an A, CNAME, or an
+			**  exact MX record.  Save it and get out of here.
+			*/
+
+			mxmatch = *dp;
+			break;
+		}
+
+		/*
+		**  Nothing definitive yet.
+		**	If this was a T_ANY query, we don't really know what
+		**		was returned -- it might have been a T_NS,
+		**		for example.  Try T_A to be more specific
+		**		during the next pass.
+		**	If this was a T_A query and we haven't yet found a MX
+		**		match, try T_MX if allowed to do so.
+		**	Otherwise, try the next domain.
+		*/
+
+		if (qtype == T_ANY)
+			qtype = T_A;
+		else if (qtype == T_A && !gotmx && trymx)
+			qtype = T_MX;
+		else
+		{
+			qtype = T_ANY;
+			dp++;
+		}
+	}
+
+	/* if nothing was found, we are done */
+	if (mxmatch == NULL)
+	{
+		*statp = EX_NOHOST;
+		return FALSE;
+	}
+
+	/*
+	**  Create canonical name and return.
+	**  If saved domain name is null, name was already canonical.
+	**  Otherwise append the saved domain name.
+	*/
+
+	(void) snprintf(nbuf, sizeof nbuf, "%.*s%s%.*s", MAXDNAME, host,
+			*mxmatch == '\0' ? "" : ".",
+			MAXDNAME, mxmatch);
+	strncpy(host, nbuf, hbsize);
+	host[hbsize - 1] = '\0';
+	if (tTd(8, 5))
+		printf("dns_getcanonname: %s\n", host);
+	*statp = EX_OK;
+	return TRUE;
+}
+
+
+
+char *
+gethostalias(host)
+	char *host;
+{
+	char *fname;
+	FILE *fp;
+	register char *p = NULL;
+	int sff = SFF_REGONLY;
+	char buf[MAXLINE];
+	static char hbuf[MAXDNAME];
+
+	if (DontLockReadFiles)
+		sff |= SFF_NOLOCK;
+	fname = getenv("HOSTALIASES");
+	if (fname == NULL ||
+	    (fp = safefopen(fname, O_RDONLY, 0, sff)) == NULL)
+		return NULL;
+	while (fgets(buf, sizeof buf, fp) != NULL)
+	{
+		for (p = buf; p != '\0' && !(isascii(*p) && isspace(*p)); p++)
+			continue;
+		if (*p == 0)
+		{
+			/* syntax error */
+			continue;
+		}
+		*p++ = '\0';
+		if (strcasecmp(buf, host) == 0)
+			break;
+	}
+
+	if (feof(fp))
+	{
+		/* no match */
+		fclose(fp);
+		return NULL;
+	}
+	fclose(fp);
+
+	/* got a match; extract the equivalent name */
+	while (*p != '\0' && isascii(*p) && isspace(*p))
+		p++;
+	host = p;
+	while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+		p++;
+	*p = '\0';
+	strncpy(hbuf, host, sizeof hbuf - 1);
+	hbuf[sizeof hbuf - 1] = '\0';
+	return hbuf;
+}
+
+#endif /* NAMED_BIND */
diff --git a/src/envelope.c b/src/envelope.c
new file mode 100644
index 0000000..3e0fc20
--- /dev/null
+++ b/src/envelope.c
@@ -0,0 +1,959 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)envelope.c	8.105 (Berkeley) 6/24/97";
+#endif /* not lint */
+
+#include "sendmail.h"
+
+/*
+**  NEWENVELOPE -- allocate a new envelope
+**
+**	Supports inheritance.
+**
+**	Parameters:
+**		e -- the new envelope to fill in.
+**		parent -- the envelope to be the parent of e.
+**
+**	Returns:
+**		e.
+**
+**	Side Effects:
+**		none.
+*/
+
+ENVELOPE *
+newenvelope(e, parent)
+	register ENVELOPE *e;
+	register ENVELOPE *parent;
+{
+	if (e == parent && e->e_parent != NULL)
+		parent = e->e_parent;
+	clearenvelope(e, TRUE);
+	if (e == CurEnv)
+		bcopy((char *) &NullAddress, (char *) &e->e_from, sizeof e->e_from);
+	else
+		bcopy((char *) &CurEnv->e_from, (char *) &e->e_from, sizeof e->e_from);
+	e->e_parent = parent;
+	e->e_ctime = curtime();
+	if (parent != NULL)
+		e->e_msgpriority = parent->e_msgsize;
+	e->e_puthdr = putheader;
+	e->e_putbody = putbody;
+	if (CurEnv->e_xfp != NULL)
+		(void) fflush(CurEnv->e_xfp);
+
+	return (e);
+}
+/*
+**  DROPENVELOPE -- deallocate an envelope.
+**
+**	Parameters:
+**		e -- the envelope to deallocate.
+**		fulldrop -- if set, do return receipts.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		housekeeping necessary to dispose of an envelope.
+**		Unlocks this queue file.
+*/
+
+void
+dropenvelope(e, fulldrop)
+	register ENVELOPE *e;
+	bool fulldrop;
+{
+	bool queueit = FALSE;
+	bool message_timeout = FALSE;
+	bool failure_return = FALSE;
+	bool delay_return = FALSE;
+	bool success_return = FALSE;
+	register ADDRESS *q;
+	char *id = e->e_id;
+	char buf[MAXLINE];
+
+	if (tTd(50, 1))
+	{
+		extern void printenvflags();
+
+		printf("dropenvelope %lx: id=", (u_long) e);
+		xputs(e->e_id);
+		printf(", flags=");
+		printenvflags(e);
+		if (tTd(50, 10))
+		{
+			printf("sendq=");
+			printaddr(e->e_sendqueue, TRUE);
+		}
+	}
+
+	if (LogLevel > 84)
+		sm_syslog(LOG_DEBUG, id,
+			"dropenvelope, e_flags=0x%x, OpMode=%c, pid=%d",
+			e->e_flags, OpMode, getpid());
+
+	/* we must have an id to remove disk files */
+	if (id == NULL)
+		return;
+
+	/* if verify-only mode, we can skip most of this */
+	if (OpMode == MD_VERIFY)
+		goto simpledrop;
+
+	if (LogLevel > 4 && bitset(EF_LOGSENDER, e->e_flags))
+		logsender(e, NULL);
+	e->e_flags &= ~EF_LOGSENDER;
+
+	/* post statistics */
+	poststats(StatFile);
+
+	/*
+	**  Extract state information from dregs of send list.
+	*/
+
+	if (curtime() > e->e_ctime + TimeOuts.to_q_return[e->e_timeoutclass])
+		message_timeout = TRUE;
+
+	e->e_flags &= ~EF_QUEUERUN;
+	for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+	{
+		if (bitset(QQUEUEUP, q->q_flags) &&
+		    bitset(QDONTSEND, q->q_flags))
+		{
+			/* I'm not sure how this happens..... */
+			if (tTd(50, 2))
+			{
+				printf("Bogus flags: ");
+				printaddr(q, FALSE);
+			}
+			q->q_flags &= ~QDONTSEND;
+		}
+		if (!bitset(QBADADDR|QDONTSEND|QSENT, q->q_flags))
+			queueit = TRUE;
+#if XDEBUG
+		else if (bitset(QQUEUEUP, q->q_flags))
+			sm_syslog(LOG_DEBUG, e->e_id,
+				"dropenvelope: q_flags = %x, paddr = %s",
+				q->q_flags, q->q_paddr);
+#endif
+
+		/* see if a notification is needed */
+		if (bitset(QPINGONFAILURE, q->q_flags) &&
+		    ((message_timeout && bitset(QQUEUEUP, q->q_flags)) ||
+		     bitset(QBADADDR, q->q_flags)))
+		{
+			failure_return = TRUE;
+			if (q->q_owner == NULL && !emptyaddr(&e->e_from))
+				(void) sendtolist(e->e_from.q_paddr, NULLADDR,
+						  &e->e_errorqueue, 0, e);
+		}
+		else if (bitset(QPINGONSUCCESS, q->q_flags) &&
+			 ((bitset(QSENT, q->q_flags) &&
+			   bitnset(M_LOCALMAILER, q->q_mailer->m_flags)) ||
+			  bitset(QRELAYED|QEXPANDED|QDELIVERED, q->q_flags)))
+		{
+			success_return = TRUE;
+		}
+	}
+
+	if (e->e_class < 0)
+		e->e_flags |= EF_NO_BODY_RETN;
+
+	/*
+	**  See if the message timed out.
+	*/
+
+	if (!queueit)
+		/* nothing to do */ ;
+	else if (message_timeout)
+	{
+		if (failure_return)
+		{
+			(void) snprintf(buf, sizeof buf,
+				"Cannot send message within %s",
+				pintvl(TimeOuts.to_q_return[e->e_timeoutclass], FALSE));
+			if (e->e_message != NULL)
+				free(e->e_message);
+			e->e_message = newstr(buf);
+			message(buf);
+			e->e_flags |= EF_CLRQUEUE;
+		}
+		fprintf(e->e_xfp, "Message could not be delivered for %s\n",
+			pintvl(TimeOuts.to_q_return[e->e_timeoutclass], FALSE));
+		fprintf(e->e_xfp, "Message will be deleted from queue\n");
+		for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+		{
+			if (!bitset(QBADADDR|QDONTSEND|QSENT, q->q_flags))
+			{
+				q->q_flags |= QBADADDR;
+				q->q_status = "4.4.7";
+			}
+		}
+	}
+	else if (TimeOuts.to_q_warning[e->e_timeoutclass] > 0 &&
+	    curtime() > e->e_ctime + TimeOuts.to_q_warning[e->e_timeoutclass])
+	{
+		if (!bitset(EF_WARNING|EF_RESPONSE, e->e_flags) &&
+		    e->e_class >= 0 &&
+		    e->e_from.q_paddr != NULL &&
+		    strcmp(e->e_from.q_paddr, "<>") != 0 &&
+		    strncasecmp(e->e_from.q_paddr, "owner-", 6) != 0 &&
+		    (strlen(e->e_from.q_paddr) <= (SIZE_T) 8 ||
+		     strcasecmp(&e->e_from.q_paddr[strlen(e->e_from.q_paddr) - 8], "-request") != 0))
+		{
+			for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+			{
+				if (bitset(QQUEUEUP, q->q_flags) &&
+				    bitset(QPINGONDELAY, q->q_flags))
+				{
+					q->q_flags |= QDELAYED;
+					delay_return = TRUE;
+				}
+			}
+		}
+		if (delay_return)
+		{
+			(void) snprintf(buf, sizeof buf,
+				"Warning: could not send message for past %s",
+				pintvl(TimeOuts.to_q_warning[e->e_timeoutclass], FALSE));
+			if (e->e_message != NULL)
+				free(e->e_message);
+			e->e_message = newstr(buf);
+			message(buf);
+			e->e_flags |= EF_WARNING;
+		}
+		fprintf(e->e_xfp,
+			"Warning: message still undelivered after %s\n",
+			pintvl(TimeOuts.to_q_warning[e->e_timeoutclass], FALSE));
+		fprintf(e->e_xfp, "Will keep trying until message is %s old\n",
+			pintvl(TimeOuts.to_q_return[e->e_timeoutclass], FALSE));
+	}
+
+	if (tTd(50, 2))
+		printf("failure_return=%d delay_return=%d success_return=%d queueit=%d\n",
+			failure_return, delay_return, success_return, queueit);
+
+	/*
+	**  If we had some fatal error, but no addresses are marked as
+	**  bad, mark them _all_ as bad.
+	*/
+
+	if (bitset(EF_FATALERRS, e->e_flags) && !failure_return)
+	{
+		for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+		{
+			if (!bitset(QDONTSEND, q->q_flags) &&
+			    bitset(QPINGONFAILURE, q->q_flags))
+			{
+				failure_return = TRUE;
+				q->q_flags |= QBADADDR;
+			}
+		}
+	}
+
+	/*
+	**  Send back return receipts as requested.
+	*/
+
+	if (success_return && !failure_return && !delay_return && fulldrop &&
+	    !bitset(PRIV_NORECEIPTS, PrivacyFlags) &&
+	    strcmp(e->e_from.q_paddr, "<>") != 0)
+	{
+		auto ADDRESS *rlist = NULL;
+
+		if (tTd(50, 8))
+			printf("dropenvelope(%s): sending return receipt\n", id);
+		e->e_flags |= EF_SENDRECEIPT;
+		(void) sendtolist(e->e_from.q_paddr, NULLADDR, &rlist, 0, e);
+		(void) returntosender("Return receipt", rlist, RTSF_NO_BODY, e);
+	}
+	e->e_flags &= ~EF_SENDRECEIPT;
+
+	/*
+	**  Arrange to send error messages if there are fatal errors.
+	*/
+
+	if ((failure_return || delay_return) && e->e_errormode != EM_QUIET)
+	{
+		extern void savemail __P((ENVELOPE *, bool));
+
+		if (tTd(50, 8))
+			printf("dropenvelope(%s): saving mail\n", id);
+		savemail(e, !bitset(EF_NO_BODY_RETN, e->e_flags));
+	}
+
+	/*
+	**  Arrange to send warning messages to postmaster as requested.
+	*/
+
+	if ((failure_return || bitset(EF_PM_NOTIFY, e->e_flags)) &&
+	    PostMasterCopy != NULL &&
+	    !bitset(EF_RESPONSE, e->e_flags) && e->e_class >= 0)
+	{
+		auto ADDRESS *rlist = NULL;
+
+		if (tTd(50, 8))
+			printf("dropenvelope(%s): sending postmaster copy\n", id);
+		(void) sendtolist(PostMasterCopy, NULLADDR, &rlist, 0, e);
+		(void) returntosender(e->e_message, rlist, RTSF_PM_BOUNCE, e);
+	}
+
+	/*
+	**  Instantiate or deinstantiate the queue.
+	*/
+
+simpledrop:
+	if (tTd(50, 8))
+		printf("dropenvelope(%s): at simpledrop, queueit=%d\n",
+			id, queueit);
+	if (!queueit || bitset(EF_CLRQUEUE, e->e_flags))
+	{
+		if (tTd(50, 1))
+		{
+			extern void printenvflags();
+
+			printf("\n===== Dropping [dq]f%s... queueit=%d, e_flags=",
+				e->e_id, queueit);
+			printenvflags(e);
+		}
+		xunlink(queuename(e, 'd'));
+		xunlink(queuename(e, 'q'));
+
+		if (LogLevel > 10)
+			sm_syslog(LOG_INFO, id, "done");
+	}
+	else if (queueit || !bitset(EF_INQUEUE, e->e_flags))
+	{
+#if QUEUE
+		queueup(e, FALSE);
+#else /* QUEUE */
+		syserr("554 dropenvelope: queueup");
+#endif /* QUEUE */
+	}
+
+	/* now unlock the job */
+	if (tTd(50, 8))
+		printf("dropenvelope(%s): unlocking job\n", id);
+	closexscript(e);
+	unlockqueue(e);
+
+	/* make sure that this envelope is marked unused */
+	if (e->e_dfp != NULL)
+		(void) xfclose(e->e_dfp, "dropenvelope df", e->e_id);
+	e->e_dfp = NULL;
+	e->e_id = NULL;
+	e->e_flags &= ~EF_HAS_DF;
+}
+/*
+**  CLEARENVELOPE -- clear an envelope without unlocking
+**
+**	This is normally used by a child process to get a clean
+**	envelope without disturbing the parent.
+**
+**	Parameters:
+**		e -- the envelope to clear.
+**		fullclear - if set, the current envelope is total
+**			garbage and should be ignored; otherwise,
+**			release any resources it may indicate.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Closes files associated with the envelope.
+**		Marks the envelope as unallocated.
+*/
+
+void
+clearenvelope(e, fullclear)
+	register ENVELOPE *e;
+	bool fullclear;
+{
+	register HDR *bh;
+	register HDR **nhp;
+	extern ENVELOPE BlankEnvelope;
+
+	if (!fullclear)
+	{
+		/* clear out any file information */
+		if (e->e_xfp != NULL)
+			(void) xfclose(e->e_xfp, "clearenvelope xfp", e->e_id);
+		if (e->e_dfp != NULL)
+			(void) xfclose(e->e_dfp, "clearenvelope dfp", e->e_id);
+		e->e_xfp = e->e_dfp = NULL;
+	}
+
+	/* now clear out the data */
+	STRUCTCOPY(BlankEnvelope, *e);
+	if (Verbose)
+		e->e_sendmode = SM_DELIVER;
+	bh = BlankEnvelope.e_header;
+	nhp = &e->e_header;
+	while (bh != NULL)
+	{
+		*nhp = (HDR *) xalloc(sizeof *bh);
+		bcopy((char *) bh, (char *) *nhp, sizeof *bh);
+		bh = bh->h_link;
+		nhp = &(*nhp)->h_link;
+	}
+}
+/*
+**  INITSYS -- initialize instantiation of system
+**
+**	In Daemon mode, this is done in the child.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Initializes the system macros, some global variables,
+**		etc.  In particular, the current time in various
+**		forms is set.
+*/
+
+void
+initsys(e)
+	register ENVELOPE *e;
+{
+	char cbuf[5];				/* holds hop count */
+	char pbuf[10];				/* holds pid */
+#ifdef TTYNAME
+	static char ybuf[60];			/* holds tty id */
+	register char *p;
+#endif /* TTYNAME */
+	extern char *ttyname();
+	extern void settime();
+
+	/*
+	**  Give this envelope a reality.
+	**	I.e., an id, a transcript, and a creation time.
+	*/
+
+	openxscript(e);
+	e->e_ctime = curtime();
+
+	/*
+	**  Set OutChannel to something useful if stdout isn't it.
+	**	This arranges that any extra stuff the mailer produces
+	**	gets sent back to the user on error (because it is
+	**	tucked away in the transcript).
+	*/
+
+	if (OpMode == MD_DAEMON && bitset(EF_QUEUERUN, e->e_flags) &&
+	    e->e_xfp != NULL)
+		OutChannel = e->e_xfp;
+
+	/*
+	**  Set up some basic system macros.
+	*/
+
+	/* process id */
+	(void) snprintf(pbuf, sizeof pbuf, "%d", getpid());
+	define('p', newstr(pbuf), e);
+
+	/* hop count */
+	(void) snprintf(cbuf, sizeof cbuf, "%d", e->e_hopcount);
+	define('c', newstr(cbuf), e);
+
+	/* time as integer, unix time, arpa time */
+	settime(e);
+
+#ifdef TTYNAME
+	/* tty name */
+	if (macvalue('y', e) == NULL)
+	{
+		p = ttyname(2);
+		if (p != NULL)
+		{
+			if (strrchr(p, '/') != NULL)
+				p = strrchr(p, '/') + 1;
+			snprintf(ybuf, sizeof ybuf, "%s", p);
+			define('y', ybuf, e);
+		}
+	}
+#endif /* TTYNAME */
+}
+/*
+**  SETTIME -- set the current time.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Sets the various time macros -- $a, $b, $d, $t.
+*/
+
+void
+settime(e)
+	register ENVELOPE *e;
+{
+	register char *p;
+	auto time_t now;
+	char tbuf[20];				/* holds "current" time */
+	char dbuf[30];				/* holds ctime(tbuf) */
+	register struct tm *tm;
+	extern struct tm *gmtime();
+
+	now = curtime();
+	tm = gmtime(&now);
+	(void) snprintf(tbuf, sizeof tbuf, "%04d%02d%02d%02d%02d", tm->tm_year + 1900,
+			tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min);
+	define('t', newstr(tbuf), e);
+	(void) strcpy(dbuf, ctime(&now));
+	p = strchr(dbuf, '\n');
+	if (p != NULL)
+		*p = '\0';
+	define('d', newstr(dbuf), e);
+	p = arpadate(dbuf);
+	p = newstr(p);
+	if (macvalue('a', e) == NULL)
+		define('a', p, e);
+	define('b', p, e);
+}
+/*
+**  OPENXSCRIPT -- Open transcript file
+**
+**	Creates a transcript file for possible eventual mailing or
+**	sending back.
+**
+**	Parameters:
+**		e -- the envelope to create the transcript in/for.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		Creates the transcript file.
+*/
+
+#ifndef O_APPEND
+#define O_APPEND	0
+#endif
+
+void
+openxscript(e)
+	register ENVELOPE *e;
+{
+	register char *p;
+	int fd;
+
+	if (e->e_xfp != NULL)
+		return;
+	p = queuename(e, 'x');
+	fd = open(p, O_WRONLY|O_CREAT|O_APPEND, FileMode);
+	if (fd < 0)
+	{
+		syserr("Can't create transcript file %s", p);
+		fd = open("/dev/null", O_WRONLY, 0644);
+		if (fd < 0)
+			syserr("!Can't open /dev/null");
+	}
+	e->e_xfp = fdopen(fd, "a");
+	if (e->e_xfp == NULL)
+		syserr("!Can't create transcript stream %s", p);
+#ifdef HASSETVBUF
+	setvbuf(e->e_xfp, NULL, _IOLBF, 0);
+#else
+	setlinebuf(e->e_xfp);
+#endif
+	if (tTd(46, 9))
+	{
+		printf("openxscript(%s):\n  ", p);
+		dumpfd(fileno(e->e_xfp), TRUE, FALSE);
+	}
+}
+/*
+**  CLOSEXSCRIPT -- close the transcript file.
+**
+**	Parameters:
+**		e -- the envelope containing the transcript to close.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+void
+closexscript(e)
+	register ENVELOPE *e;
+{
+	if (e->e_xfp == NULL)
+		return;
+	(void) xfclose(e->e_xfp, "closexscript", e->e_id);
+	e->e_xfp = NULL;
+}
+/*
+**  SETSENDER -- set the person who this message is from
+**
+**	Under certain circumstances allow the user to say who
+**	s/he is (using -f or -r).  These are:
+**	1.  The user's uid is zero (root).
+**	2.  The user's login name is in an approved list (typically
+**	    from a network server).
+**	3.  The address the user is trying to claim has a
+**	    "!" character in it (since #2 doesn't do it for
+**	    us if we are dialing out for UUCP).
+**	A better check to replace #3 would be if the
+**	effective uid is "UUCP" -- this would require me
+**	to rewrite getpwent to "grab" uucp as it went by,
+**	make getname more nasty, do another passwd file
+**	scan, or compile the UID of "UUCP" into the code,
+**	all of which are reprehensible.
+**
+**	Assuming all of these fail, we figure out something
+**	ourselves.
+**
+**	Parameters:
+**		from -- the person we would like to believe this message
+**			is from, as specified on the command line.
+**		e -- the envelope in which we would like the sender set.
+**		delimptr -- if non-NULL, set to the location of the
+**			trailing delimiter.
+**		delimchar -- the character that will delimit the sender
+**			address.
+**		internal -- set if this address is coming from an internal
+**			source such as an owner alias.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		sets sendmail's notion of who the from person is.
+*/
+
+void
+setsender(from, e, delimptr, delimchar, internal)
+	char *from;
+	register ENVELOPE *e;
+	char **delimptr;
+	int delimchar;
+	bool internal;
+{
+	register char **pvp;
+	char *realname = NULL;
+	register struct passwd *pw;
+	char *bp;
+	char buf[MAXNAME + 2];
+	char pvpbuf[PSBUFSIZE];
+	extern char *FullName;
+
+	if (tTd(45, 1))
+		printf("setsender(%s)\n", from == NULL ? "" : from);
+
+	/*
+	**  Figure out the real user executing us.
+	**	Username can return errno != 0 on non-errors.
+	*/
+
+	if (bitset(EF_QUEUERUN, e->e_flags) || OpMode == MD_SMTP ||
+	    OpMode == MD_ARPAFTP || OpMode == MD_DAEMON)
+		realname = from;
+	if (realname == NULL || realname[0] == '\0')
+		realname = username();
+
+	if (ConfigLevel < 2)
+		SuprErrs = TRUE;
+
+	e->e_from.q_flags = QBADADDR;
+	if (from == NULL ||
+	    parseaddr(from, &e->e_from, RF_COPYALL|RF_SENDERADDR,
+		      delimchar, delimptr, e) == NULL ||
+	    bitset(QBADADDR, e->e_from.q_flags) ||
+	    e->e_from.q_mailer == ProgMailer ||
+	    e->e_from.q_mailer == FileMailer ||
+	    e->e_from.q_mailer == InclMailer)
+	{
+		/* log garbage addresses for traceback */
+		if (from != NULL && LogLevel > 2)
+		{
+			char *p;
+			char ebuf[MAXNAME * 2 + 2];
+
+			p = macvalue('_', e);
+			if (p == NULL)
+			{
+				char *host = RealHostName;
+
+				if (host == NULL)
+					host = MyHostName;
+				(void) snprintf(ebuf, sizeof ebuf, "%.*s@%.*s",
+					MAXNAME, realname,
+					MAXNAME, host);
+				p = ebuf;
+			}
+			sm_syslog(LOG_NOTICE, e->e_id,
+				"setsender: %s: invalid or unparseable, received from %s",
+				shortenstring(from, 83), p);
+		}
+		if (from != NULL)
+		{
+			if (!bitset(QBADADDR, e->e_from.q_flags))
+			{
+				/* it was a bogus mailer in the from addr */
+				e->e_status = "5.1.7";
+				usrerr("553 Invalid sender address");
+			}
+			SuprErrs = TRUE;
+		}
+		if (from == realname ||
+		    parseaddr(from = newstr(realname), &e->e_from,
+			      RF_COPYALL|RF_SENDERADDR, ' ', NULL, e) == NULL)
+		{
+			char nbuf[100];
+
+			SuprErrs = TRUE;
+			expand("\201n", nbuf, sizeof nbuf, e);
+			if (parseaddr(from = newstr(nbuf), &e->e_from,
+				      RF_COPYALL, ' ', NULL, e) == NULL &&
+			    parseaddr(from = "postmaster", &e->e_from,
+			    	      RF_COPYALL, ' ', NULL, e) == NULL)
+				syserr("553 setsender: can't even parse postmaster!");
+		}
+	}
+	else
+		FromFlag = TRUE;
+	e->e_from.q_flags |= QDONTSEND;
+	if (tTd(45, 5))
+	{
+		printf("setsender: QDONTSEND ");
+		printaddr(&e->e_from, FALSE);
+	}
+	SuprErrs = FALSE;
+
+# if USERDB
+	if (bitnset(M_CHECKUDB, e->e_from.q_mailer->m_flags))
+	{
+		register char *p;
+		extern char *udbsender();
+
+		p = udbsender(e->e_from.q_user);
+		if (p != NULL)
+			from = p;
+	}
+# endif /* USERDB */
+
+	if (bitnset(M_HASPWENT, e->e_from.q_mailer->m_flags))
+	{
+		if (!internal)
+		{
+			/* if the user already given fullname don't redefine */
+			if (FullName == NULL)
+				FullName = macvalue('x', e);
+			if (FullName != NULL && FullName[0] == '\0')
+				FullName = NULL;
+		}
+
+		if (e->e_from.q_user[0] != '\0' &&
+		    (pw = sm_getpwnam(e->e_from.q_user)) != NULL)
+		{
+			/*
+			**  Process passwd file entry.
+			*/
+
+			/* extract home directory */
+			if (strcmp(pw->pw_dir, "/") == 0)
+				e->e_from.q_home = newstr("");
+			else
+				e->e_from.q_home = newstr(pw->pw_dir);
+			define('z', e->e_from.q_home, e);
+
+			/* extract user and group id */
+			e->e_from.q_uid = pw->pw_uid;
+			e->e_from.q_gid = pw->pw_gid;
+			e->e_from.q_flags |= QGOODUID;
+
+			/* extract full name from passwd file */
+			if (FullName == NULL && pw->pw_gecos != NULL &&
+			    strcmp(pw->pw_name, e->e_from.q_user) == 0 &&
+			    !internal)
+			{
+				buildfname(pw->pw_gecos, e->e_from.q_user, buf, sizeof buf);
+				if (buf[0] != '\0')
+					FullName = newstr(buf);
+			}
+		}
+		else
+		{
+			e->e_from.q_home = "/no/such/directory";
+		}
+		if (FullName != NULL && !internal)
+			define('x', FullName, e);
+	}
+	else if (!internal && OpMode != MD_DAEMON)
+	{
+		if (e->e_from.q_home == NULL)
+		{
+			e->e_from.q_home = getenv("HOME");
+			if (e->e_from.q_home != NULL &&
+			    strcmp(e->e_from.q_home, "/") == 0)
+				e->e_from.q_home++;
+		}
+		e->e_from.q_uid = RealUid;
+		e->e_from.q_gid = RealGid;
+		e->e_from.q_flags |= QGOODUID;
+	}
+
+	/*
+	**  Rewrite the from person to dispose of possible implicit
+	**	links in the net.
+	*/
+
+	pvp = prescan(from, delimchar, pvpbuf, sizeof pvpbuf, NULL, NULL);
+	if (pvp == NULL)
+	{
+		/* don't need to give error -- prescan did that already */
+		if (LogLevel > 2)
+			sm_syslog(LOG_NOTICE, e->e_id,
+				"cannot prescan from (%s)",
+				shortenstring(from, 203));
+		finis();
+	}
+	(void) rewrite(pvp, 3, 0, e);
+	(void) rewrite(pvp, 1, 0, e);
+	(void) rewrite(pvp, 4, 0, e);
+	bp = buf + 1;
+	cataddr(pvp, NULL, bp, sizeof buf - 2, '\0');
+	if (*bp == '@' && !bitnset(M_NOBRACKET, e->e_from.q_mailer->m_flags))
+	{
+		/* heuristic: route-addr: add angle brackets */
+		strcat(bp, ">");
+		*--bp = '<';
+	}
+	e->e_sender = newstr(bp);
+	define('f', e->e_sender, e);
+
+	/* save the domain spec if this mailer wants it */
+	if (e->e_from.q_mailer != NULL &&
+	    bitnset(M_CANONICAL, e->e_from.q_mailer->m_flags))
+	{
+		char **lastat;
+		extern char **copyplist();
+
+		/* get rid of any pesky angle brackets */
+		(void) rewrite(pvp, 3, 0, e);
+		(void) rewrite(pvp, 1, 0, e);
+		(void) rewrite(pvp, 4, 0, e);
+
+		/* strip off to the last "@" sign */
+		for (lastat = NULL; *pvp != NULL; pvp++)
+			if (strcmp(*pvp, "@") == 0)
+				lastat = pvp;
+		if (lastat != NULL)
+		{
+			e->e_fromdomain = copyplist(lastat, TRUE);
+			if (tTd(45, 3))
+			{
+				printf("Saving from domain: ");
+				printav(e->e_fromdomain);
+			}
+		}
+	}
+}
+/*
+**  PRINTENVFLAGS -- print envelope flags for debugging
+**
+**	Parameters:
+**		e -- the envelope with the flags to be printed.
+**
+**	Returns:
+**		none.
+*/
+
+struct eflags
+{
+	char	*ef_name;
+	u_long	ef_bit;
+};
+
+struct eflags	EnvelopeFlags[] =
+{
+	{ "OLDSTYLE",		EF_OLDSTYLE	},
+	{ "INQUEUE",		EF_INQUEUE	},
+	{ "NO_BODY_RETN",	EF_NO_BODY_RETN	},
+	{ "CLRQUEUE",		EF_CLRQUEUE	},
+	{ "SENDRECEIPT",	EF_SENDRECEIPT	},
+	{ "FATALERRS",		EF_FATALERRS	},
+	{ "DELETE_BCC",		EF_DELETE_BCC	},
+	{ "RESPONSE",		EF_RESPONSE	},
+	{ "RESENT",		EF_RESENT	},
+	{ "VRFYONLY",		EF_VRFYONLY	},
+	{ "WARNING",		EF_WARNING	},
+	{ "QUEUERUN",		EF_QUEUERUN	},
+	{ "GLOBALERRS",		EF_GLOBALERRS	},
+	{ "PM_NOTIFY",		EF_PM_NOTIFY	},
+	{ "METOO",		EF_METOO	},
+	{ "LOGSENDER",		EF_LOGSENDER	},
+	{ "NORECEIPT",		EF_NORECEIPT	},
+	{ "HAS8BIT",		EF_HAS8BIT	},
+	{ "NL_NOT_EOL",		EF_NL_NOT_EOL	},
+	{ "CRLF_NOT_EOL",	EF_CRLF_NOT_EOL	},
+	{ "RET_PARAM",		EF_RET_PARAM	},
+	{ "HAS_DF",		EF_HAS_DF	},
+	{ "IS_MIME",		EF_IS_MIME	},
+	{ "DONT_MIME",		EF_DONT_MIME	},
+	{ NULL }
+};
+
+void
+printenvflags(e)
+	register ENVELOPE *e;
+{
+	register struct eflags *ef;
+	bool first = TRUE;
+
+	printf("%lx", e->e_flags);
+	for (ef = EnvelopeFlags; ef->ef_name != NULL; ef++)
+	{
+		if (!bitset(ef->ef_bit, e->e_flags))
+			continue;
+		if (first)
+			printf("<%s", ef->ef_name);
+		else
+			printf(",%s", ef->ef_name);
+		first = FALSE;
+	}
+	if (!first)
+		printf(">\n");
+}
diff --git a/src/err.c b/src/err.c
new file mode 100644
index 0000000..f08d960
--- /dev/null
+++ b/src/err.c
@@ -0,0 +1,784 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)err.c	8.65 (Berkeley) 10/18/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+# include <errno.h>
+
+/*
+**  SYSERR -- Print error message.
+**
+**	Prints an error message via printf to the diagnostic output.
+**
+**	If the first character of the syserr message is `!' it will
+**	log this as an ALERT message and exit immediately.  This can
+**	leave queue files in an indeterminate state, so it should not
+**	be used lightly.
+**
+**	Parameters:
+**		fmt -- the format string.  If it does not begin with
+**			a three-digit SMTP reply code, either 554 or
+**			451 is assumed depending on whether errno
+**			is set.
+**		(others) -- parameters
+**
+**	Returns:
+**		none
+**		Through TopFrame if QuickAbort is set.
+**
+**	Side Effects:
+**		increments Errors.
+**		sets ExitStat.
+*/
+
+char	MsgBuf[BUFSIZ*2];		/* text of most recent message */
+char	HeldMessageBuf[sizeof MsgBuf];	/* for held messages */
+
+extern void	putoutmsg __P((char *, bool, bool));
+extern void	puterrmsg __P((char *));
+static void	fmtmsg __P((char *, const char *, const char *, int, const char *, va_list));
+
+#if NAMED_BIND && !defined(NO_DATA)
+# define NO_DATA	NO_ADDRESS
+#endif
+
+void
+/*VARARGS1*/
+#ifdef __STDC__
+syserr(const char *fmt, ...)
+#else
+syserr(fmt, va_alist)
+	const char *fmt;
+	va_dcl
+#endif
+{
+	register char *p;
+	int olderrno = errno;
+	bool panic;
+	char *uname;
+	struct passwd *pw;
+	char ubuf[80];
+	VA_LOCAL_DECL
+
+	panic = *fmt == '!';
+	if (panic)
+	{
+		fmt++;
+		HoldErrs = FALSE;
+	}
+
+	/* format and output the error message */
+	if (olderrno == 0)
+		p = "554";
+	else
+		p = "451";
+	VA_START(fmt);
+	fmtmsg(MsgBuf, (char *) NULL, p, olderrno, fmt, ap);
+	VA_END;
+	puterrmsg(MsgBuf);
+
+	/* save this message for mailq printing */
+	if (!panic && CurEnv != NULL)
+	{
+		if (CurEnv->e_message != NULL)
+			free(CurEnv->e_message);
+		CurEnv->e_message = newstr(MsgBuf + 4);
+	}
+
+	/* determine exit status if not already set */
+	if (ExitStat == EX_OK)
+	{
+		if (olderrno == 0)
+			ExitStat = EX_SOFTWARE;
+		else
+			ExitStat = EX_OSERR;
+		if (tTd(54, 1))
+			printf("syserr: ExitStat = %d\n", ExitStat);
+	}
+
+	pw = sm_getpwuid(getuid());
+	if (pw != NULL)
+		uname = pw->pw_name;
+	else
+	{
+		uname = ubuf;
+		snprintf(ubuf, sizeof ubuf, "UID%d", getuid());
+	}
+
+	if (LogLevel > 0)
+		sm_syslog(panic ? LOG_ALERT : LOG_CRIT,
+			  CurEnv == NULL ? NOQID : CurEnv->e_id,
+			  "SYSERR(%s): %.900s",
+			  uname, &MsgBuf[4]);
+	switch (olderrno)
+	{
+	  case EBADF:
+	  case ENFILE:
+	  case EMFILE:
+	  case ENOTTY:
+#ifdef EFBIG
+	  case EFBIG:
+#endif
+#ifdef ESPIPE
+	  case ESPIPE:
+#endif
+#ifdef EPIPE
+	  case EPIPE:
+#endif
+#ifdef ENOBUFS
+	  case ENOBUFS:
+#endif
+#ifdef ESTALE
+	  case ESTALE:
+#endif
+		printopenfds(TRUE);
+		mci_dump_all(TRUE);
+		break;
+	}
+	if (panic)
+	{
+#ifdef XLA
+		xla_all_end();
+#endif
+		if (tTd(0, 1))
+			abort();
+		exit(EX_OSERR);
+	}
+	errno = 0;
+	if (QuickAbort)
+		longjmp(TopFrame, 2);
+}
+/*
+**  USRERR -- Signal user error.
+**
+**	This is much like syserr except it is for user errors.
+**
+**	Parameters:
+**		fmt -- the format string.  If it does not begin with
+**			a three-digit SMTP reply code, 501 is assumed.
+**		(others) -- printf strings
+**
+**	Returns:
+**		none
+**		Through TopFrame if QuickAbort is set.
+**
+**	Side Effects:
+**		increments Errors.
+*/
+
+/*VARARGS1*/
+void
+#ifdef __STDC__
+usrerr(const char *fmt, ...)
+#else
+usrerr(fmt, va_alist)
+	const char *fmt;
+	va_dcl
+#endif
+{
+	VA_LOCAL_DECL
+
+	if (SuprErrs)
+		return;
+
+	VA_START(fmt);
+	fmtmsg(MsgBuf, CurEnv->e_to, "501", 0, fmt, ap);
+	VA_END;
+
+	/* save this message for mailq printing */
+	switch (MsgBuf[0])
+	{
+	  case '4':
+	  case '8':
+		if (CurEnv->e_message != NULL)
+			break;
+
+		/* fall through.... */
+
+	  case '5':
+	  case '6':
+		if (CurEnv->e_message != NULL)
+			free(CurEnv->e_message);
+		if (MsgBuf[0] == '6')
+		{
+			char buf[MAXLINE];
+
+			snprintf(buf, sizeof buf, "Postmaster warning: %.*s",
+				sizeof buf - 22, MsgBuf + 4);
+			CurEnv->e_message = newstr(buf);
+		}
+		else
+		{
+			CurEnv->e_message = newstr(MsgBuf + 4);
+		}
+		break;
+	}
+
+	puterrmsg(MsgBuf);
+
+	if (LogLevel > 3 && LogUsrErrs)
+		sm_syslog(LOG_NOTICE, CurEnv->e_id,
+			"%.900s",
+			&MsgBuf[4]);
+
+	if (QuickAbort)
+		longjmp(TopFrame, 1);
+}
+/*
+**  MESSAGE -- print message (not necessarily an error)
+**
+**	Parameters:
+**		msg -- the message (printf fmt) -- it can begin with
+**			an SMTP reply code.  If not, 050 is assumed.
+**		(others) -- printf arguments
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		none.
+*/
+
+/*VARARGS2*/
+void
+#ifdef __STDC__
+message(const char *msg, ...)
+#else
+message(msg, va_alist)
+	const char *msg;
+	va_dcl
+#endif
+{
+	VA_LOCAL_DECL
+
+	errno = 0;
+	VA_START(msg);
+	fmtmsg(MsgBuf, CurEnv->e_to, "050", 0, msg, ap);
+	VA_END;
+	putoutmsg(MsgBuf, FALSE, FALSE);
+
+	/* save this message for mailq printing */
+	switch (MsgBuf[0])
+	{
+	  case '4':
+	  case '8':
+		if (CurEnv->e_message != NULL)
+			break;
+		/* fall through.... */
+
+	  case '5':
+		if (CurEnv->e_message != NULL)
+			free(CurEnv->e_message);
+		CurEnv->e_message = newstr(MsgBuf + 4);
+		break;
+	}
+}
+/*
+**  NMESSAGE -- print message (not necessarily an error)
+**
+**	Just like "message" except it never puts the to... tag on.
+**
+**	Parameters:
+**		msg -- the message (printf fmt) -- if it begins
+**			with a three digit SMTP reply code, that is used,
+**			otherwise 050 is assumed.
+**		(others) -- printf arguments
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		none.
+*/
+
+/*VARARGS2*/
+void
+#ifdef __STDC__
+nmessage(const char *msg, ...)
+#else
+nmessage(msg, va_alist)
+	const char *msg;
+	va_dcl
+#endif
+{
+	VA_LOCAL_DECL
+
+	errno = 0;
+	VA_START(msg);
+	fmtmsg(MsgBuf, (char *) NULL, "050", 0, msg, ap);
+	VA_END;
+	putoutmsg(MsgBuf, FALSE, FALSE);
+
+	/* save this message for mailq printing */
+	switch (MsgBuf[0])
+	{
+	  case '4':
+	  case '8':
+		if (CurEnv->e_message != NULL)
+			break;
+		/* fall through.... */
+
+	  case '5':
+		if (CurEnv->e_message != NULL)
+			free(CurEnv->e_message);
+		CurEnv->e_message = newstr(MsgBuf + 4);
+		break;
+	}
+}
+/*
+**  PUTOUTMSG -- output error message to transcript and channel
+**
+**	Parameters:
+**		msg -- message to output (in SMTP format).
+**		holdmsg -- if TRUE, don't output a copy of the message to
+**			our output channel.
+**		heldmsg -- if TRUE, this is a previously held message;
+**			don't log it to the transcript file.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Outputs msg to the transcript.
+**		If appropriate, outputs it to the channel.
+**		Deletes SMTP reply code number as appropriate.
+*/
+
+void
+putoutmsg(msg, holdmsg, heldmsg)
+	char *msg;
+	bool holdmsg;
+	bool heldmsg;
+{
+	char msgcode = msg[0];
+
+	/* display for debugging */
+	if (tTd(54, 8))
+		printf("--- %s%s%s\n", msg, holdmsg ? " (hold)" : "",
+			heldmsg ? " (held)" : "");
+
+	/* map warnings to something SMTP can handle */
+	if (msgcode == '6')
+		msg[0] = '5';
+	else if (msgcode == '8')
+		msg[0] = '4';
+
+	/* output to transcript if serious */
+	if (!heldmsg && CurEnv != NULL && CurEnv->e_xfp != NULL &&
+	    strchr("45", msg[0]) != NULL)
+		fprintf(CurEnv->e_xfp, "%s\n", msg);
+
+	if (LogLevel >= 15 && (OpMode == MD_SMTP || OpMode == MD_DAEMON))
+		sm_syslog(LOG_INFO, CurEnv->e_id,
+			"--> %s%s",
+			msg, holdmsg ? " (held)" : "");
+
+	if (msgcode == '8')
+		msg[0] = '0';
+
+	/* output to channel if appropriate */
+	if (!Verbose && msg[0] == '0')
+		return;
+	if (holdmsg)
+	{
+		/* save for possible future display */
+		msg[0] = msgcode;
+		snprintf(HeldMessageBuf, sizeof HeldMessageBuf, "%s", msg);
+		return;
+	}
+
+	(void) fflush(stdout);
+
+	if (OutChannel == NULL)
+		return;
+	
+	/* if DisConnected, OutChannel now points to the transcript */
+	if (!DisConnected &&
+	    (OpMode == MD_SMTP || OpMode == MD_DAEMON || OpMode == MD_ARPAFTP))
+		fprintf(OutChannel, "%s\r\n", msg);
+	else
+		fprintf(OutChannel, "%s\n", &msg[4]);
+	if (TrafficLogFile != NULL)
+		fprintf(TrafficLogFile, "%05d >>> %s\n", (int) getpid(),
+			(OpMode == MD_SMTP || OpMode == MD_DAEMON) ? msg : &msg[4]);
+	if (msg[3] == ' ')
+		(void) fflush(OutChannel);
+	if (!ferror(OutChannel) || DisConnected)
+		return;
+
+	/*
+	**  Error on output -- if reporting lost channel, just ignore it.
+	**  Also, ignore errors from QUIT response (221 message) -- some
+	**	rude servers don't read result.
+	*/
+
+	if (InChannel == NULL || feof(InChannel) || ferror(InChannel) ||
+	    strncmp(msg, "221", 3) == 0)
+		return;
+
+	/* can't call syserr, 'cause we are using MsgBuf */
+	HoldErrs = TRUE;
+	if (LogLevel > 0)
+		sm_syslog(LOG_CRIT, CurEnv->e_id,
+			"SYSERR: putoutmsg (%s): error on output channel sending \"%s\": %s",
+			CurHostName == NULL ? "NO-HOST" : CurHostName,
+			shortenstring(msg, 203), errstring(errno));
+}
+/*
+**  PUTERRMSG -- like putoutmsg, but does special processing for error messages
+**
+**	Parameters:
+**		msg -- the message to output.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Sets the fatal error bit in the envelope as appropriate.
+*/
+
+void
+puterrmsg(msg)
+	char *msg;
+{
+	char msgcode = msg[0];
+
+	/* output the message as usual */
+	putoutmsg(msg, HoldErrs, FALSE);
+
+	/* be careful about multiple error messages */
+	if (OnlyOneError)
+		HoldErrs = TRUE;
+
+	/* signal the error */
+	Errors++;
+
+	if (CurEnv == NULL)
+		return;
+	
+	if (msgcode == '6')
+	{
+		/* notify the postmaster */
+		CurEnv->e_flags |= EF_PM_NOTIFY;
+	}
+	else if (msgcode == '5' && bitset(EF_GLOBALERRS, CurEnv->e_flags))
+	{
+		/* mark long-term fatal errors */
+		CurEnv->e_flags |= EF_FATALERRS;
+	}
+}
+/*
+**  FMTMSG -- format a message into buffer.
+**
+**	Parameters:
+**		eb -- error buffer to get result.
+**		to -- the recipient tag for this message.
+**		num -- arpanet error number.
+**		en -- the error number to display.
+**		fmt -- format of string.
+**		a, b, c, d, e -- arguments.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+static void
+fmtmsg(eb, to, num, eno, fmt, ap)
+	register char *eb;
+	const char *to;
+	const char *num;
+	int eno;
+	const char *fmt;
+	va_list ap;
+{
+	char del;
+	int l;
+	int spaceleft = sizeof MsgBuf;
+
+	/* output the reply code */
+	if (isdigit(fmt[0]) && isdigit(fmt[1]) && isdigit(fmt[2]))
+	{
+		num = fmt;
+		fmt += 4;
+	}
+	if (num[3] == '-')
+		del = '-';
+	else
+		del = ' ';
+	(void) snprintf(eb, spaceleft, "%3.3s%c", num, del);
+	eb += 4;
+	spaceleft -= 4;
+
+	/* output the file name and line number */
+	if (FileName != NULL)
+	{
+		(void) snprintf(eb, spaceleft, "%s: line %d: ",
+			shortenstring(FileName, 83), LineNumber);
+		eb += (l = strlen(eb));
+		spaceleft -= l;
+	}
+
+	/* output the "to" person */
+	if (to != NULL && to[0] != '\0' &&
+	    strncmp(num, "551", 3) != 0 &&
+	    strncmp(num, "251", 3) != 0)
+	{
+		(void) snprintf(eb, spaceleft, "%s... ",
+			shortenstring(to, 203));
+		spaceleft -= strlen(eb);
+		while (*eb != '\0')
+			*eb++ &= 0177;
+	}
+
+	/* output the message */
+	(void) vsnprintf(eb, spaceleft, fmt, ap);
+	spaceleft -= strlen(eb);
+	while (*eb != '\0')
+		*eb++ &= 0177;
+
+	/* output the error code, if any */
+	if (eno != 0)
+		(void) snprintf(eb, spaceleft, ": %s", errstring(eno));
+}
+/*
+**  BUFFER_ERRORS -- arrange to buffer future error messages
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		none.
+*/
+
+void
+buffer_errors()
+{
+	HeldMessageBuf[0] = '\0';
+	HoldErrs = TRUE;
+}
+/*
+**  FLUSH_ERRORS -- flush the held error message buffer
+**
+**	Parameters:
+**		print -- if set, print the message, otherwise just
+**			delete it.
+**
+**	Returns:
+**		none.
+*/
+
+void
+flush_errors(print)
+	bool print;
+{
+	if (print && HeldMessageBuf[0] != '\0')
+		putoutmsg(HeldMessageBuf, FALSE, TRUE);
+	HeldMessageBuf[0] = '\0';
+	HoldErrs = FALSE;
+}
+/*
+**  ERRSTRING -- return string description of error code
+**
+**	Parameters:
+**		errnum -- the error number to translate
+**
+**	Returns:
+**		A string description of errnum.
+**
+**	Side Effects:
+**		none.
+*/
+
+const char *
+errstring(errnum)
+	int errnum;
+{
+	char *dnsmsg;
+	char *bp;
+	static char buf[MAXLINE];
+# if !HASSTRERROR && !defined(ERRLIST_PREDEFINED)
+	extern char *sys_errlist[];
+	extern int sys_nerr;
+# endif
+# if SMTP
+	extern char *SmtpPhase;
+# endif /* SMTP */
+
+	/*
+	**  Handle special network error codes.
+	**
+	**	These are 4.2/4.3bsd specific; they should be in daemon.c.
+	*/
+
+	dnsmsg = NULL;
+	switch (errnum)
+	{
+# if defined(DAEMON) && defined(ETIMEDOUT)
+	  case ETIMEDOUT:
+	  case ECONNRESET:
+		bp = buf;
+#if HASSTRERROR
+		snprintf(bp, SPACELEFT(buf, bp), "%s", strerror(errnum));
+#else
+		snprintf(bp, SPACELEFT(buf, bp), "%s", sys_errlist[errnum]);
+#endif
+		bp += strlen(bp);
+		if (CurHostName != NULL)
+		{
+			if (errnum == ETIMEDOUT)
+			{
+				snprintf(bp, SPACELEFT(buf, bp), " with ");
+				bp += strlen(bp);
+			}
+			else
+			{
+				bp = buf;
+				snprintf(bp, SPACELEFT(buf, bp),
+					"Connection reset by ");
+				bp += strlen(bp);
+			}
+			snprintf(bp, SPACELEFT(buf, bp), "%s",
+				shortenstring(CurHostName, 203));
+			bp += strlen(buf);
+		}
+		if (SmtpPhase != NULL)
+		{
+			snprintf(bp, SPACELEFT(buf, bp), " during %s",
+				SmtpPhase);
+		}
+		return (buf);
+
+	  case EHOSTDOWN:
+		if (CurHostName == NULL)
+			break;
+		(void) snprintf(buf, sizeof buf, "Host %s is down",
+			shortenstring(CurHostName, 203));
+		return (buf);
+
+	  case ECONNREFUSED:
+		if (CurHostName == NULL)
+			break;
+		(void) snprintf(buf, sizeof buf, "Connection refused by %s",
+			shortenstring(CurHostName, 203));
+		return (buf);
+# endif
+
+# if NAMED_BIND
+	  case HOST_NOT_FOUND + E_DNSBASE:
+		dnsmsg = "host not found";
+		break;
+
+	  case TRY_AGAIN + E_DNSBASE:
+		dnsmsg = "host name lookup failure";
+		break;
+
+	  case NO_RECOVERY + E_DNSBASE:
+		dnsmsg = "non-recoverable error";
+		break;
+
+	  case NO_DATA + E_DNSBASE:
+		dnsmsg = "no data known";
+		break;
+# endif
+
+	  case EPERM:
+		/* SunOS gives "Not owner" -- this is the POSIX message */
+		return "Operation not permitted";
+
+	/*
+	**  Error messages used internally in sendmail.
+	*/
+
+	  case E_SM_OPENTIMEOUT:
+		return "Timeout on file open";
+
+	  case E_SM_NOSLINK:
+		return "Symbolic links not allowed";
+
+	  case E_SM_NOHLINK:
+		return "Hard links not allowed";
+
+	  case E_SM_REGONLY:
+		return "Regular files only";
+
+	  case E_SM_ISEXEC:
+		return "Executable files not allowed";
+
+	  case E_SM_WWDIR:
+		return "World writable directory";
+
+	  case E_SM_GWDIR:
+		return "Group writable directory";
+
+	  case E_SM_FILECHANGE:
+		return "File changed after open";
+
+	  case E_SM_WWFILE:
+		return "World writable file";
+
+	  case E_SM_GWFILE:
+		return "Group writable file";
+	}
+
+	if (dnsmsg != NULL)
+	{
+		bp = buf;
+		strcpy(bp, "Name server: ");
+		bp += strlen(bp);
+		if (CurHostName != NULL)
+		{
+			snprintf(bp, SPACELEFT(buf, bp), "%s: ",
+				shortenstring(CurHostName, 203));
+			bp += strlen(bp);
+		}
+		snprintf(bp, SPACELEFT(buf, bp), "%s", dnsmsg);
+		return buf;
+	}
+
+#if HASSTRERROR
+	return strerror(errnum);
+#else
+	if (errnum > 0 && errnum < sys_nerr)
+		return (sys_errlist[errnum]);
+
+	(void) snprintf(buf, sizeof buf, "Error %d", errnum);
+	return (buf);
+#endif
+}
diff --git a/src/headers.c b/src/headers.c
new file mode 100644
index 0000000..857e9c3
--- /dev/null
+++ b/src/headers.c
@@ -0,0 +1,1565 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)headers.c	8.115 (Berkeley) 10/22/97";
+#endif /* not lint */
+
+# include <errno.h>
+# include "sendmail.h"
+
+/*
+**  SETUPHEADERS -- initialize headers in symbol table
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		none
+*/
+
+void
+setupheaders()
+{
+	struct hdrinfo *hi;
+	STAB *s;
+
+	for (hi = HdrInfo; hi->hi_field != NULL; hi++)
+	{
+		s = stab(hi->hi_field, ST_HEADER, ST_ENTER);
+		s->s_header.hi_flags = hi->hi_flags;
+		s->s_header.hi_ruleset = NULL;
+	}
+}
+/*
+**  CHOMPHEADER -- process and save a header line.
+**
+**	Called by collect and by readcf to deal with header lines.
+**
+**	Parameters:
+**		line -- header as a text line.
+**		def -- if set, this is a default value.
+**		hdrp -- a pointer to the place to save the header.
+**		e -- the envelope including this header.
+**
+**	Returns:
+**		flags for this header.
+**
+**	Side Effects:
+**		The header is saved on the header list.
+**		Contents of 'line' are destroyed.
+*/
+
+struct hdrinfo	NormalHeader =	{ NULL, 0, NULL };
+
+int
+chompheader(line, def, hdrp, e)
+	char *line;
+	bool def;
+	HDR **hdrp;
+	register ENVELOPE *e;
+{
+	register char *p;
+	register HDR *h;
+	HDR **hp;
+	char *fname;
+	char *fvalue;
+	bool cond = FALSE;
+	bool headeronly;
+	STAB *s;
+	struct hdrinfo *hi;
+	BITMAP mopts;
+
+	if (tTd(31, 6))
+	{
+		printf("chompheader: ");
+		xputs(line);
+		printf("\n");
+	}
+
+	headeronly = hdrp != NULL;
+	if (!headeronly)
+		hdrp = &e->e_header;
+
+	/* strip off options */
+	clrbitmap(mopts);
+	p = line;
+	if (*p == '?')
+	{
+		/* have some */
+		register char *q = strchr(p + 1, *p);
+		
+		if (q != NULL)
+		{
+			*q++ = '\0';
+			while (*++p != '\0')
+				setbitn(*p, mopts);
+			p = q;
+		}
+		else
+			syserr("553 header syntax error, line \"%s\"", line);
+		cond = TRUE;
+	}
+
+	/* find canonical name */
+	fname = p;
+	while (isascii(*p) && isgraph(*p) && *p != ':')
+		p++;
+	fvalue = p;
+	while (isascii(*p) && isspace(*p))
+		p++;
+	if (*p++ != ':' || fname == fvalue)
+	{
+		syserr("553 header syntax error, line \"%s\"", line);
+		return 0;
+	}
+	*fvalue = '\0';
+	fvalue = p;
+
+	/* strip field value on front */
+	if (*fvalue == ' ')
+		fvalue++;
+
+	/* security scan: long field names are end-of-header */
+	if (strlen(fname) > 100)
+		return H_EOH;
+
+#if _FFR_HEADER_RSCHECK
+	/* check to see if it represents a ruleset call */
+	if (def)
+	{
+		char hbuf[50];
+
+		(void) expand(fvalue, hbuf, sizeof hbuf, e);
+		for (p = hbuf; isascii(*p) && isspace(*p); )
+			p++;
+		if ((*p++ & 0377) == CALLSUBR)
+		{
+			auto char *endp;
+
+			if (strtorwset(p, &endp, ST_ENTER) > 0)
+			{
+				*endp = '\0';
+				s = stab(fname, ST_HEADER, ST_ENTER);
+				s->s_header.hi_ruleset = newstr(p);
+			}
+			return 0;
+		}
+	}
+#endif
+
+	/* see if it is a known type */
+	s = stab(fname, ST_HEADER, ST_FIND);
+	if (s != NULL)
+		hi = &s->s_header;
+	else
+		hi = &NormalHeader;
+
+	if (tTd(31, 9))
+	{
+		if (s == NULL)
+			printf("no header flags match\n");
+		else
+			printf("header match, flags=%x, ruleset=%s\n", 
+				hi->hi_flags,
+				hi->hi_ruleset == NULL ? "<NULL>" : hi->hi_ruleset);
+	}
+
+	/* see if this is a resent message */
+	if (!def && !headeronly && bitset(H_RESENT, hi->hi_flags))
+		e->e_flags |= EF_RESENT;
+
+	/* if this is an Errors-To: header keep track of it now */
+	if (UseErrorsTo && !def && !headeronly &&
+	    bitset(H_ERRORSTO, hi->hi_flags))
+		(void) sendtolist(fvalue, NULLADDR, &e->e_errorqueue, 0, e);
+
+	/* if this means "end of header" quit now */
+	if (bitset(H_EOH, hi->hi_flags))
+		return hi->hi_flags;
+
+	/*
+	**  Horrible hack to work around problem with Lotus Notes SMTP
+	**  mail gateway, which generates From: headers with newlines in
+	**  them and the <address> on the second line.  Although this is
+	**  legal RFC 822, many MUAs don't handle this properly and thus
+	**  never find the actual address.
+	*/
+
+	if (bitset(H_FROM, hi->hi_flags) && SingleLineFromHeader)
+	{
+		while ((p = strchr(fvalue, '\n')) != NULL)
+			*p = ' ';
+	}
+
+	/*
+	**  If there is a check ruleset, verify it against the header.
+	*/
+
+	if (!def && hi->hi_ruleset != NULL)
+		(void) rscheck(hi->hi_ruleset, fvalue, NULL, e);
+
+	/*
+	**  Drop explicit From: if same as what we would generate.
+	**  This is to make MH (which doesn't always give a full name)
+	**  insert the full name information in all circumstances.
+	*/
+
+	p = "resent-from";
+	if (!bitset(EF_RESENT, e->e_flags))
+		p += 7;
+	if (!def && !headeronly && !bitset(EF_QUEUERUN, e->e_flags) &&
+	    strcasecmp(fname, p) == 0)
+	{
+		if (tTd(31, 2))
+		{
+			printf("comparing header from (%s) against default (%s or %s)\n",
+				fvalue, e->e_from.q_paddr, e->e_from.q_user);
+		}
+		if (e->e_from.q_paddr != NULL &&
+		    (strcmp(fvalue, e->e_from.q_paddr) == 0 ||
+		     strcmp(fvalue, e->e_from.q_user) == 0))
+			return hi->hi_flags;
+	}
+
+	/* delete default value for this header */
+	for (hp = hdrp; (h = *hp) != NULL; hp = &h->h_link)
+	{
+		if (strcasecmp(fname, h->h_field) == 0 &&
+		    bitset(H_DEFAULT, h->h_flags) &&
+		    !bitset(H_FORCE, h->h_flags))
+		{
+			h->h_value = NULL;
+			if (!cond)
+			{
+				/* copy conditions from default case */
+				bcopy((char *)h->h_mflags, (char *)mopts,
+						sizeof mopts);
+			}
+		}
+	}
+
+	/* create a new node */
+	h = (HDR *) xalloc(sizeof *h);
+	h->h_field = newstr(fname);
+	h->h_value = newstr(fvalue);
+	h->h_link = NULL;
+	bcopy((char *) mopts, (char *) h->h_mflags, sizeof mopts);
+	*hp = h;
+	h->h_flags = hi->hi_flags;
+	if (def)
+		h->h_flags |= H_DEFAULT;
+	if (cond)
+		h->h_flags |= H_CHECK;
+
+	/* hack to see if this is a new format message */
+	if (!def && !headeronly && bitset(H_RCPT|H_FROM, h->h_flags) &&
+	    (strchr(fvalue, ',') != NULL || strchr(fvalue, '(') != NULL ||
+	     strchr(fvalue, '<') != NULL || strchr(fvalue, ';') != NULL))
+	{
+		e->e_flags &= ~EF_OLDSTYLE;
+	}
+
+	return h->h_flags;
+}
+/*
+**  ADDHEADER -- add a header entry to the end of the queue.
+**
+**	This bypasses the special checking of chompheader.
+**
+**	Parameters:
+**		field -- the name of the header field.
+**		value -- the value of the field.
+**		hp -- an indirect pointer to the header structure list.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		adds the field on the list of headers for this envelope.
+*/
+
+void
+addheader(field, value, hdrlist)
+	char *field;
+	char *value;
+	HDR **hdrlist;
+{
+	register HDR *h;
+	STAB *s;
+	HDR **hp;
+
+	/* find info struct */
+	s = stab(field, ST_HEADER, ST_FIND);
+
+	/* find current place in list -- keep back pointer? */
+	for (hp = hdrlist; (h = *hp) != NULL; hp = &h->h_link)
+	{
+		if (strcasecmp(field, h->h_field) == 0)
+			break;
+	}
+
+	/* allocate space for new header */
+	h = (HDR *) xalloc(sizeof *h);
+	h->h_field = field;
+	h->h_value = newstr(value);
+	h->h_link = *hp;
+	h->h_flags = H_DEFAULT;
+	if (s != NULL)
+		h->h_flags |= s->s_header.hi_flags;
+	clrbitmap(h->h_mflags);
+	*hp = h;
+}
+/*
+**  HVALUE -- return value of a header.
+**
+**	Only "real" fields (i.e., ones that have not been supplied
+**	as a default) are used.
+**
+**	Parameters:
+**		field -- the field name.
+**		header -- the header list.
+**
+**	Returns:
+**		pointer to the value part.
+**		NULL if not found.
+**
+**	Side Effects:
+**		none.
+*/
+
+char *
+hvalue(field, header)
+	char *field;
+	HDR *header;
+{
+	register HDR *h;
+
+	for (h = header; h != NULL; h = h->h_link)
+	{
+		if (!bitset(H_DEFAULT, h->h_flags) &&
+		    strcasecmp(h->h_field, field) == 0)
+			return (h->h_value);
+	}
+	return (NULL);
+}
+/*
+**  ISHEADER -- predicate telling if argument is a header.
+**
+**	A line is a header if it has a single word followed by
+**	optional white space followed by a colon.
+**
+**	Header fields beginning with two dashes, although technically
+**	permitted by RFC822, are automatically rejected in order
+**	to make MIME work out.  Without this we could have a technically
+**	legal header such as ``--"foo:bar"'' that would also be a legal
+**	MIME separator.
+**
+**	Parameters:
+**		h -- string to check for possible headerness.
+**
+**	Returns:
+**		TRUE if h is a header.
+**		FALSE otherwise.
+**
+**	Side Effects:
+**		none.
+*/
+
+bool
+isheader(h)
+	char *h;
+{
+	register char *s = h;
+
+	if (s[0] == '-' && s[1] == '-')
+		return FALSE;
+
+	while (*s > ' ' && *s != ':' && *s != '\0')
+		s++;
+
+	if (h == s)
+		return FALSE;
+
+	/* following technically violates RFC822 */
+	while (isascii(*s) && isspace(*s))
+		s++;
+
+	return (*s == ':');
+}
+/*
+**  EATHEADER -- run through the stored header and extract info.
+**
+**	Parameters:
+**		e -- the envelope to process.
+**		full -- if set, do full processing (e.g., compute
+**			message priority).  This should not be set
+**			when reading a queue file because some info
+**			needed to compute the priority is wrong.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Sets a bunch of global variables from information
+**			in the collected header.
+**		Aborts the message if the hop count is exceeded.
+*/
+
+void
+eatheader(e, full)
+	register ENVELOPE *e;
+	bool full;
+{
+	register HDR *h;
+	register char *p;
+	int hopcnt = 0;
+	char *msgid;
+	char buf[MAXLINE];
+	extern int priencode __P((char *));
+
+	/*
+	**  Set up macros for possible expansion in headers.
+	*/
+
+	define('f', e->e_sender, e);
+	define('g', e->e_sender, e);
+	if (e->e_origrcpt != NULL && *e->e_origrcpt != '\0')
+		define('u', e->e_origrcpt, e);
+	else
+		define('u', NULL, e);
+
+	/* full name of from person */
+	p = hvalue("full-name", e->e_header);
+	if (p != NULL)
+		define('x', p, e);
+
+	if (tTd(32, 1))
+		printf("----- collected header -----\n");
+	msgid = NULL;
+	for (h = e->e_header; h != NULL; h = h->h_link)
+	{
+		if (tTd(32, 1))
+			printf("%s: ", h->h_field);
+		if (h->h_value == NULL)
+		{
+			if (tTd(32, 1))
+				printf("<NULL>\n");
+			continue;
+		}
+
+		/* do early binding */
+		if (bitset(H_DEFAULT, h->h_flags))
+		{
+			if (tTd(32, 1))
+			{
+				printf("(");
+				xputs(h->h_value);
+				printf(") ");
+			}
+			expand(h->h_value, buf, sizeof buf, e);
+			if (buf[0] != '\0')
+			{
+				if (bitset(H_FROM, h->h_flags))
+				{
+					extern char *crackaddr();
+
+					expand(crackaddr(buf), buf, sizeof buf, e);
+				}
+				h->h_value = newstr(buf);
+				h->h_flags &= ~H_DEFAULT;
+			}
+		}
+
+		if (tTd(32, 1))
+		{
+			xputs(h->h_value);
+			printf("\n");
+		}
+
+		/* count the number of times it has been processed */
+		if (bitset(H_TRACE, h->h_flags))
+			hopcnt++;
+
+		/* send to this person if we so desire */
+		if (GrabTo && bitset(H_RCPT, h->h_flags) &&
+		    !bitset(H_DEFAULT, h->h_flags) &&
+		    (!bitset(EF_RESENT, e->e_flags) || bitset(H_RESENT, h->h_flags)))
+		{
+			int saveflags = e->e_flags;
+
+			(void) sendtolist(h->h_value, NULLADDR,
+					  &e->e_sendqueue, 0, e);
+
+#if 0
+			/*
+			** Change functionality so a fatal error on an
+			** address doesn't affect the entire envelope.
+			*/
+			 
+			/* delete fatal errors generated by this address */
+			if (!bitset(EF_FATALERRS, saveflags))
+				e->e_flags &= ~EF_FATALERRS;
+#endif
+		}
+
+		/* save the message-id for logging */
+		p = "resent-message-id";
+		if (!bitset(EF_RESENT, e->e_flags))
+			p += 7;
+		if (strcasecmp(h->h_field, p) == 0)
+		{
+			msgid = h->h_value;
+			while (isascii(*msgid) && isspace(*msgid))
+				msgid++;
+		}
+	}
+	if (tTd(32, 1))
+		printf("----------------------------\n");
+
+	/* if we are just verifying (that is, sendmail -t -bv), drop out now */
+	if (OpMode == MD_VERIFY)
+		return;
+
+	/* store hop count */
+	if (hopcnt > e->e_hopcount)
+		e->e_hopcount = hopcnt;
+
+	/* message priority */
+	p = hvalue("precedence", e->e_header);
+	if (p != NULL)
+		e->e_class = priencode(p);
+	if (e->e_class < 0)
+		e->e_timeoutclass = TOC_NONURGENT;
+	else if (e->e_class > 0)
+		e->e_timeoutclass = TOC_URGENT;
+	if (full)
+	{
+		e->e_msgpriority = e->e_msgsize
+				 - e->e_class * WkClassFact
+				 + e->e_nrcpts * WkRecipFact;
+	}
+
+	/* message timeout priority */
+	p = hvalue("priority", e->e_header);
+	if (p != NULL)
+	{
+		/* (this should be in the configuration file) */
+		if (strcasecmp(p, "urgent") == 0)
+			e->e_timeoutclass = TOC_URGENT;
+		else if (strcasecmp(p, "normal") == 0)
+			e->e_timeoutclass = TOC_NORMAL;
+		else if (strcasecmp(p, "non-urgent") == 0)
+			e->e_timeoutclass = TOC_NONURGENT;
+	}
+
+	/* date message originated */
+	p = hvalue("posted-date", e->e_header);
+	if (p == NULL)
+		p = hvalue("date", e->e_header);
+	if (p != NULL)
+		define('a', p, e);
+
+	/* check to see if this is a MIME message */
+	if ((e->e_bodytype != NULL &&
+	     strcasecmp(e->e_bodytype, "8BITMIME") == 0) ||
+	    hvalue("MIME-Version", e->e_header) != NULL)
+	{
+		e->e_flags |= EF_IS_MIME;
+		if (HasEightBits)
+			e->e_bodytype = "8BITMIME";
+	}
+	else if ((p = hvalue("Content-Type", e->e_header)) != NULL)
+	{
+		/* this may be an RFC 1049 message */
+		p = strpbrk(p, ";/");
+		if (p == NULL || *p == ';')
+		{
+			/* yep, it is */
+			e->e_flags |= EF_DONT_MIME;
+		}
+	}
+
+	/*
+	**  From person in antiquated ARPANET mode
+	**	required by UK Grey Book e-mail gateways (sigh)
+	*/
+
+	if (OpMode == MD_ARPAFTP)
+	{
+		register struct hdrinfo *hi;
+
+		for (hi = HdrInfo; hi->hi_field != NULL; hi++)
+		{
+			if (bitset(H_FROM, hi->hi_flags) &&
+			    (!bitset(H_RESENT, hi->hi_flags) ||
+			     bitset(EF_RESENT, e->e_flags)) &&
+			    (p = hvalue(hi->hi_field, e->e_header)) != NULL)
+				break;
+		}
+		if (hi->hi_field != NULL)
+		{
+			if (tTd(32, 2))
+				printf("eatheader: setsender(*%s == %s)\n",
+					hi->hi_field, p);
+			setsender(p, e, NULL, '\0', TRUE);
+		}
+	}
+
+	/*
+	**  Log collection information.
+	*/
+
+	if (bitset(EF_LOGSENDER, e->e_flags) && LogLevel > 4)
+		logsender(e, msgid);
+	e->e_flags &= ~EF_LOGSENDER;
+}
+/*
+**  LOGSENDER -- log sender information
+**
+**	Parameters:
+**		e -- the envelope to log
+**		msgid -- the message id
+**
+**	Returns:
+**		none
+*/
+
+void
+logsender(e, msgid)
+	register ENVELOPE *e;
+	char *msgid;
+{
+	char *name;
+	register char *sbp;
+	register char *p;
+	int l;
+	char hbuf[MAXNAME + 1];
+	char sbuf[MAXLINE + 1];
+	char mbuf[MAXNAME + 1];
+
+	/* don't allow newlines in the message-id */
+	if (msgid != NULL)
+	{
+		l = strlen(msgid);
+		if (l > sizeof mbuf - 1)
+			l = sizeof mbuf - 1;
+		bcopy(msgid, mbuf, l);
+		mbuf[l] = '\0';
+		p = mbuf;
+		while ((p = strchr(p, '\n')) != NULL)
+			*p++ = ' ';
+	}
+
+	if (bitset(EF_RESPONSE, e->e_flags))
+		name = "[RESPONSE]";
+	else if ((name = macvalue('_', e)) != NULL)
+		;
+	else if (RealHostName == NULL)
+		name = "localhost";
+	else if (RealHostName[0] == '[')
+		name = RealHostName;
+	else
+	{
+		name = hbuf;
+		(void) snprintf(hbuf, sizeof hbuf, "%.80s", RealHostName);
+		if (RealHostAddr.sa.sa_family != 0)
+		{
+			p = &hbuf[strlen(hbuf)];
+			(void) snprintf(p, SPACELEFT(hbuf, p), " (%.100s)",
+				anynet_ntoa(&RealHostAddr));
+		}
+	}
+
+	/* some versions of syslog only take 5 printf args */
+#  if (SYSLOG_BUFSIZE) >= 256
+	sbp = sbuf;
+	snprintf(sbp, SPACELEFT(sbuf, sbp),
+	    "from=%.200s, size=%ld, class=%d, pri=%ld, nrcpts=%d",
+	    e->e_from.q_paddr == NULL ? "<NONE>" : e->e_from.q_paddr,
+	    e->e_msgsize, e->e_class, e->e_msgpriority, e->e_nrcpts);
+	sbp += strlen(sbp);
+	if (msgid != NULL)
+	{
+		snprintf(sbp, SPACELEFT(sbuf, sbp), ", msgid=%.100s", mbuf);
+		sbp += strlen(sbp);
+	}
+	if (e->e_bodytype != NULL)
+	{
+		(void) snprintf(sbp, SPACELEFT(sbuf, sbp), ", bodytype=%.20s",
+			e->e_bodytype);
+		sbp += strlen(sbp);
+	}
+	p = macvalue('r', e);
+	if (p != NULL)
+		(void) snprintf(sbp, SPACELEFT(sbuf, sbp), ", proto=%.20s", p);
+	sm_syslog(LOG_INFO, e->e_id,
+		"%.850s, relay=%.100s",
+		sbuf, name);
+
+#  else			/* short syslog buffer */
+
+	sm_syslog(LOG_INFO, e->e_id,
+		"from=%s",
+		e->e_from.q_paddr == NULL ? "<NONE>"
+					  : shortenstring(e->e_from.q_paddr, 83));
+	sm_syslog(LOG_INFO, e->e_id,
+		"size=%ld, class=%ld, pri=%ld, nrcpts=%d",
+		e->e_msgsize, e->e_class, e->e_msgpriority, e->e_nrcpts);
+	if (msgid != NULL)
+		sm_syslog(LOG_INFO, e->e_id,
+			"msgid=%s",
+			shortenstring(mbuf, 83));
+	sbp = sbuf;
+	*sbp = '\0';
+	if (e->e_bodytype != NULL)
+	{
+		snprintf(sbp, SPACELEFT(sbuf, sbp), "bodytype=%.20s, ", e->e_bodytype);
+		sbp += strlen(sbp);
+	}
+	p = macvalue('r', e);
+	if (p != NULL)
+	{
+		snprintf(sbp, SPACELEFT(sbuf, sbp), "proto=%.20s, ", p);
+		sbp += strlen(sbp);
+	}
+	sm_syslog(LOG_INFO, e->e_id,
+		"%.400srelay=%.100s", sbuf, name);
+#  endif
+}
+/*
+**  PRIENCODE -- encode external priority names into internal values.
+**
+**	Parameters:
+**		p -- priority in ascii.
+**
+**	Returns:
+**		priority as a numeric level.
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+priencode(p)
+	char *p;
+{
+	register int i;
+
+	for (i = 0; i < NumPriorities; i++)
+	{
+		if (!strcasecmp(p, Priorities[i].pri_name))
+			return (Priorities[i].pri_val);
+	}
+
+	/* unknown priority */
+	return (0);
+}
+/*
+**  CRACKADDR -- parse an address and turn it into a macro
+**
+**	This doesn't actually parse the address -- it just extracts
+**	it and replaces it with "$g".  The parse is totally ad hoc
+**	and isn't even guaranteed to leave something syntactically
+**	identical to what it started with.  However, it does leave
+**	something semantically identical.
+**
+**	This algorithm has been cleaned up to handle a wider range
+**	of cases -- notably quoted and backslash escaped strings.
+**	This modification makes it substantially better at preserving
+**	the original syntax.
+**
+**	Parameters:
+**		addr -- the address to be cracked.
+**
+**	Returns:
+**		a pointer to the new version.
+**
+**	Side Effects:
+**		none.
+**
+**	Warning:
+**		The return value is saved in local storage and should
+**		be copied if it is to be reused.
+*/
+
+char *
+crackaddr(addr)
+	register char *addr;
+{
+	register char *p;
+	register char c;
+	int cmtlev;
+	int realcmtlev;
+	int anglelev, realanglelev;
+	int copylev;
+	int bracklev;
+	bool qmode;
+	bool realqmode;
+	bool skipping;
+	bool putgmac = FALSE;
+	bool quoteit = FALSE;
+	bool gotangle = FALSE;
+	bool gotcolon = FALSE;
+	register char *bp;
+	char *buflim;
+	char *bufhead;
+	char *addrhead;
+	static char buf[MAXNAME + 1];
+
+	if (tTd(33, 1))
+		printf("crackaddr(%s)\n", addr);
+
+	/* strip leading spaces */
+	while (*addr != '\0' && isascii(*addr) && isspace(*addr))
+		addr++;
+
+	/*
+	**  Start by assuming we have no angle brackets.  This will be
+	**  adjusted later if we find them.
+	*/
+
+	bp = bufhead = buf;
+	buflim = &buf[sizeof buf - 7];
+	p = addrhead = addr;
+	copylev = anglelev = realanglelev = cmtlev = realcmtlev = 0;
+	bracklev = 0;
+	qmode = realqmode = FALSE;
+
+	while ((c = *p++) != '\0')
+	{
+		/*
+		**  If the buffer is overful, go into a special "skipping"
+		**  mode that tries to keep legal syntax but doesn't actually
+		**  output things.
+		*/
+
+		skipping = bp >= buflim;
+
+		if (copylev > 0 && !skipping)
+			*bp++ = c;
+
+		/* check for backslash escapes */
+		if (c == '\\')
+		{
+			/* arrange to quote the address */
+			if (cmtlev <= 0 && !qmode)
+				quoteit = TRUE;
+
+			if ((c = *p++) == '\0')
+			{
+				/* too far */
+				p--;
+				goto putg;
+			}
+			if (copylev > 0 && !skipping)
+				*bp++ = c;
+			goto putg;
+		}
+
+		/* check for quoted strings */
+		if (c == '"' && cmtlev <= 0)
+		{
+			qmode = !qmode;
+			if (copylev > 0 && !skipping)
+				realqmode = !realqmode;
+			continue;
+		}
+		if (qmode)
+			goto putg;
+
+		/* check for comments */
+		if (c == '(')
+		{
+			cmtlev++;
+
+			/* allow space for closing paren */
+			if (!skipping)
+			{
+				buflim--;
+				realcmtlev++;
+				if (copylev++ <= 0)
+				{
+					if (bp != bufhead)
+						*bp++ = ' ';
+					*bp++ = c;
+				}
+			}
+		}
+		if (cmtlev > 0)
+		{
+			if (c == ')')
+			{
+				cmtlev--;
+				copylev--;
+				if (!skipping)
+				{
+					realcmtlev--;
+					buflim++;
+				}
+			}
+			continue;
+		}
+		else if (c == ')')
+		{
+			/* syntax error: unmatched ) */
+			if (copylev > 0 && !skipping)
+				bp--;
+		}
+
+		/* count nesting on [ ... ] (for IPv6 domain literals) */
+		if (c == '[')
+			bracklev++;
+		else if (c == ']')
+			bracklev--;
+
+		/* check for group: list; syntax */
+		if (c == ':' && anglelev <= 0 && bracklev <= 0 &&
+		    !gotcolon && !ColonOkInAddr)
+		{
+			register char *q;
+
+			/*
+			**  Check for DECnet phase IV ``::'' (host::user)
+			**  or **  DECnet phase V ``:.'' syntaxes.  The latter
+			**  covers ``user@DEC:.tay.myhost'' and
+			**  ``DEC:.tay.myhost::user'' syntaxes (bletch).
+			*/
+
+			if (*p == ':' || *p == '.')
+			{
+				if (cmtlev <= 0 && !qmode)
+					quoteit = TRUE;
+				if (copylev > 0 && !skipping)
+				{
+					*bp++ = c;
+					*bp++ = *p;
+				}
+				p++;
+				goto putg;
+			}
+
+			gotcolon = TRUE;
+
+			bp = bufhead;
+			if (quoteit)
+			{
+				*bp++ = '"';
+
+				/* back up over the ':' and any spaces */
+				--p;
+				while (isascii(*--p) && isspace(*p))
+					continue;
+				p++;
+			}
+			for (q = addrhead; q < p; )
+			{
+				c = *q++;
+				if (bp < buflim)
+				{
+					if (quoteit && c == '"')
+						*bp++ = '\\';
+					*bp++ = c;
+				}
+			}
+			if (quoteit)
+			{
+				if (bp == &bufhead[1])
+					bp--;
+				else
+					*bp++ = '"';
+				while ((c = *p++) != ':')
+				{
+					if (bp < buflim)
+						*bp++ = c;
+				}
+				*bp++ = c;
+			}
+
+			/* any trailing white space is part of group: */
+			while (isascii(*p) && isspace(*p) && bp < buflim)
+				*bp++ = *p++;
+			copylev = 0;
+			putgmac = quoteit = FALSE;
+			bufhead = bp;
+			addrhead = p;
+			continue;
+		}
+
+		if (c == ';' && copylev <= 0 && !ColonOkInAddr)
+		{
+			if (bp < buflim)
+				*bp++ = c;
+		}
+
+		/* check for characters that may have to be quoted */
+		if (strchr(MustQuoteChars, c) != NULL)
+		{
+			/*
+			**  If these occur as the phrase part of a <>
+			**  construct, but are not inside of () or already
+			**  quoted, they will have to be quoted.  Note that
+			**  now (but don't actually do the quoting).
+			*/
+
+			if (cmtlev <= 0 && !qmode)
+				quoteit = TRUE;
+		}
+
+		/* check for angle brackets */
+		if (c == '<')
+		{
+			register char *q;
+
+			/* assume first of two angles is bogus */
+			if (gotangle)
+				quoteit = TRUE;
+			gotangle = TRUE;
+
+			/* oops -- have to change our mind */
+			anglelev = 1;
+			if (!skipping)
+				realanglelev = 1;
+
+			bp = bufhead;
+			if (quoteit)
+			{
+				*bp++ = '"';
+
+				/* back up over the '<' and any spaces */
+				--p;
+				while (isascii(*--p) && isspace(*p))
+					continue;
+				p++;
+			}
+			for (q = addrhead; q < p; )
+			{
+				c = *q++;
+				if (bp < buflim)
+				{
+					if (quoteit && c == '"')
+						*bp++ = '\\';
+					*bp++ = c;
+				}
+			}
+			if (quoteit)
+			{
+				if (bp == &buf[1])
+					bp--;
+				else
+					*bp++ = '"';
+				while ((c = *p++) != '<')
+				{
+					if (bp < buflim)
+						*bp++ = c;
+				}
+				*bp++ = c;
+			}
+			copylev = 0;
+			putgmac = quoteit = FALSE;
+			continue;
+		}
+
+		if (c == '>')
+		{
+			if (anglelev > 0)
+			{
+				anglelev--;
+				if (!skipping)
+				{
+					realanglelev--;
+					buflim++;
+				}
+			}
+			else if (!skipping)
+			{
+				/* syntax error: unmatched > */
+				if (copylev > 0)
+					bp--;
+				quoteit = TRUE;
+				continue;
+			}
+			if (copylev++ <= 0)
+				*bp++ = c;
+			continue;
+		}
+
+		/* must be a real address character */
+	putg:
+		if (copylev <= 0 && !putgmac)
+		{
+			if (bp > bufhead && bp[-1] == ')')
+				*bp++ = ' ';
+			*bp++ = MACROEXPAND;
+			*bp++ = 'g';
+			putgmac = TRUE;
+		}
+	}
+
+	/* repair any syntactic damage */
+	if (realqmode)
+		*bp++ = '"';
+	while (realcmtlev-- > 0)
+		*bp++ = ')';
+	while (realanglelev-- > 0)
+		*bp++ = '>';
+	*bp++ = '\0';
+
+	if (tTd(33, 1))
+	{
+		printf("crackaddr=>`");
+		xputs(buf);
+		printf("'\n");
+	}
+
+	return (buf);
+}
+/*
+**  PUTHEADER -- put the header part of a message from the in-core copy
+**
+**	Parameters:
+**		mci -- the connection information.
+**		h -- the header to put.
+**		e -- envelope to use.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+/*
+ * Macro for fast max (not available in e.g. DG/UX, 386/ix).
+ */
+#ifndef MAX
+# define MAX(a,b) (((a)>(b))?(a):(b))
+#endif
+
+void
+putheader(mci, hdr, e)
+	register MCI *mci;
+	HDR *hdr;
+	register ENVELOPE *e;
+{
+	register HDR *h;
+	char buf[MAX(MAXLINE,BUFSIZ)];
+	char obuf[MAXLINE];
+
+	if (tTd(34, 1))
+		printf("--- putheader, mailer = %s ---\n",
+			mci->mci_mailer->m_name);
+
+	mci->mci_flags |= MCIF_INHEADER;
+	for (h = hdr; h != NULL; h = h->h_link)
+	{
+		register char *p = h->h_value;
+		extern bool bitintersect();
+
+		if (tTd(34, 11))
+		{
+			printf("  %s: ", h->h_field);
+			xputs(p);
+		}
+
+		/* suppress Content-Transfer-Encoding: if we are MIMEing */
+		if (bitset(H_CTE, h->h_flags) &&
+		    bitset(MCIF_CVT8TO7|MCIF_CVT7TO8|MCIF_INMIME, mci->mci_flags))
+		{
+			if (tTd(34, 11))
+				printf(" (skipped (content-transfer-encoding))\n");
+			continue;
+		}
+
+		if (bitset(MCIF_INMIME, mci->mci_flags))
+		{
+			if (tTd(34, 11))
+				printf("\n");
+			put_vanilla_header(h, p, mci);
+			continue;
+		}
+
+		if (bitset(H_CHECK|H_ACHECK, h->h_flags) &&
+		    !bitintersect(h->h_mflags, mci->mci_mailer->m_flags))
+		{
+			if (tTd(34, 11))
+				printf(" (skipped)\n");
+			continue;
+		}
+
+		/* handle Resent-... headers specially */
+		if (bitset(H_RESENT, h->h_flags) && !bitset(EF_RESENT, e->e_flags))
+		{
+			if (tTd(34, 11))
+				printf(" (skipped (resent))\n");
+			continue;
+		}
+
+		/* suppress return receipts if requested */
+		if (bitset(H_RECEIPTTO, h->h_flags) &&
+#if _FFR_DSN_RRT_OPTION
+		    (RrtImpliesDsn || bitset(EF_NORECEIPT, e->e_flags)))
+#else
+		    bitset(EF_NORECEIPT, e->e_flags))
+#endif
+		{
+			if (tTd(34, 11))
+				printf(" (skipped (receipt))\n");
+			continue;
+		}
+
+		/* macro expand value if generated internally */
+		if (bitset(H_DEFAULT, h->h_flags))
+		{
+			expand(p, buf, sizeof buf, e);
+			p = buf;
+			if (*p == '\0')
+			{
+				if (tTd(34, 11))
+					printf(" (skipped -- null value)\n");
+				continue;
+			}
+		}
+
+		if (bitset(H_BCC, h->h_flags))
+		{
+			/* Bcc: field -- either truncate or delete */
+			if (bitset(EF_DELETE_BCC, e->e_flags))
+			{
+				if (tTd(34, 11))
+					printf(" (skipped -- bcc)\n");
+			}
+			else
+			{
+				/* no other recipient headers: truncate value */
+				(void) snprintf(obuf, sizeof obuf, "%s:",
+					h->h_field);
+				putline(obuf, mci);
+			}
+			continue;
+		}
+
+		if (tTd(34, 11))
+			printf("\n");
+
+		if (bitset(H_FROM|H_RCPT, h->h_flags))
+		{
+			/* address field */
+			bool oldstyle = bitset(EF_OLDSTYLE, e->e_flags);
+
+			if (bitset(H_FROM, h->h_flags))
+				oldstyle = FALSE;
+			commaize(h, p, oldstyle, mci, e);
+		}
+		else
+		{
+			put_vanilla_header(h, p, mci);
+		}
+	}
+
+	/*
+	**  If we are converting this to a MIME message, add the
+	**  MIME headers.
+	*/
+
+#if MIME8TO7
+	if (bitset(MM_MIME8BIT, MimeMode) &&
+	    bitset(EF_HAS8BIT, e->e_flags) &&
+	    !bitset(EF_DONT_MIME, e->e_flags) &&
+	    !bitnset(M_8BITS, mci->mci_mailer->m_flags) &&
+	    !bitset(MCIF_CVT8TO7|MCIF_CVT7TO8, mci->mci_flags))
+	{
+		if (hvalue("MIME-Version", e->e_header) == NULL)
+			putline("MIME-Version: 1.0", mci);
+		if (hvalue("Content-Type", e->e_header) == NULL)
+		{
+			snprintf(obuf, sizeof obuf,
+				"Content-Type: text/plain; charset=%s",
+				defcharset(e));
+			putline(obuf, mci);
+		}
+		if (hvalue("Content-Transfer-Encoding", e->e_header) == NULL)
+			putline("Content-Transfer-Encoding: 8bit", mci);
+	}
+#endif
+}
+/*
+**  PUT_VANILLA_HEADER -- output a fairly ordinary header
+**
+**	Parameters:
+**		h -- the structure describing this header
+**		v -- the value of this header
+**		mci -- the connection info for output
+**
+**	Returns:
+**		none.
+*/
+
+void
+put_vanilla_header(h, v, mci)
+	HDR *h;
+	char *v;
+	MCI *mci;
+{
+	register char *nlp;
+	register char *obp;
+	int putflags;
+	char obuf[MAXLINE];
+
+	putflags = PXLF_HEADER;
+#if _FFR_7BITHDRS
+	if (bitnset(M_7BITHDRS, mci->mci_mailer->m_flags))
+		putflags |= PXLF_STRIP8BIT;
+#endif
+	(void) snprintf(obuf, sizeof obuf, "%.200s: ", h->h_field);
+	obp = obuf + strlen(obuf);
+	while ((nlp = strchr(v, '\n')) != NULL)
+	{
+		int l;
+
+		l = nlp - v;
+		if (SPACELEFT(obuf, obp) - 1 < l)
+			l = SPACELEFT(obuf, obp) - 1;
+
+		snprintf(obp, SPACELEFT(obuf, obp), "%.*s", l, v);
+		putxline(obuf, strlen(obuf), mci, putflags);
+		v += l + 1;
+		obp = obuf;
+		if (*v != ' ' && *v != '\t')
+			*obp++ = ' ';
+	}
+	snprintf(obp, SPACELEFT(obuf, obp), "%.*s",
+		sizeof obuf - (obp - obuf) - 1, v);
+	putxline(obuf, strlen(obuf), mci, putflags);
+}
+/*
+**  COMMAIZE -- output a header field, making a comma-translated list.
+**
+**	Parameters:
+**		h -- the header field to output.
+**		p -- the value to put in it.
+**		oldstyle -- TRUE if this is an old style header.
+**		mci -- the connection information.
+**		e -- the envelope containing the message.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		outputs "p" to file "fp".
+*/
+
+void
+commaize(h, p, oldstyle, mci, e)
+	register HDR *h;
+	register char *p;
+	bool oldstyle;
+	register MCI *mci;
+	register ENVELOPE *e;
+{
+	register char *obp;
+	int opos;
+	int omax;
+	bool firstone = TRUE;
+	int putflags = PXLF_HEADER;
+	char obuf[MAXLINE + 3];
+
+	/*
+	**  Output the address list translated by the
+	**  mailer and with commas.
+	*/
+
+	if (tTd(14, 2))
+		printf("commaize(%s: %s)\n", h->h_field, p);
+
+#if _FFR_7BITHDRS
+	if (bitnset(M_7BITHDRS, mci->mci_mailer->m_flags))
+		putflags |= PXLF_STRIP8BIT;
+#endif
+
+	obp = obuf;
+	(void) snprintf(obp, SPACELEFT(obuf, obp), "%.200s: ", h->h_field);
+	opos = strlen(h->h_field) + 2;
+	if (opos > 202)
+		opos = 202;
+	obp += opos;
+	omax = mci->mci_mailer->m_linelimit - 2;
+	if (omax < 0 || omax > 78)
+		omax = 78;
+
+	/*
+	**  Run through the list of values.
+	*/
+
+	while (*p != '\0')
+	{
+		register char *name;
+		register int c;
+		char savechar;
+		int flags;
+		auto int stat;
+
+		/*
+		**  Find the end of the name.  New style names
+		**  end with a comma, old style names end with
+		**  a space character.  However, spaces do not
+		**  necessarily delimit an old-style name -- at
+		**  signs mean keep going.
+		*/
+
+		/* find end of name */
+		while ((isascii(*p) && isspace(*p)) || *p == ',')
+			p++;
+		name = p;
+		for (;;)
+		{
+			auto char *oldp;
+			char pvpbuf[PSBUFSIZE];
+
+			(void) prescan(p, oldstyle ? ' ' : ',', pvpbuf,
+				       sizeof pvpbuf, &oldp, NULL);
+			p = oldp;
+
+			/* look to see if we have an at sign */
+			while (*p != '\0' && isascii(*p) && isspace(*p))
+				p++;
+
+			if (*p != '@')
+			{
+				p = oldp;
+				break;
+			}
+			p += *p == '@' ? 1 : 2;
+			while (*p != '\0' && isascii(*p) && isspace(*p))
+				p++;
+		}
+		/* at the end of one complete name */
+
+		/* strip off trailing white space */
+		while (p >= name &&
+		       ((isascii(*p) && isspace(*p)) || *p == ',' || *p == '\0'))
+			p--;
+		if (++p == name)
+			continue;
+		savechar = *p;
+		*p = '\0';
+
+		/* translate the name to be relative */
+		flags = RF_HEADERADDR|RF_ADDDOMAIN;
+		if (bitset(H_FROM, h->h_flags))
+			flags |= RF_SENDERADDR;
+#if USERDB
+		else if (e->e_from.q_mailer != NULL &&
+			 bitnset(M_UDBRECIPIENT, e->e_from.q_mailer->m_flags))
+		{
+			extern char *udbsender();
+			char *q;
+
+			q = udbsender(name);
+			if (q != NULL)
+				name = q;
+		}
+#endif
+		stat = EX_OK;
+		name = remotename(name, mci->mci_mailer, flags, &stat, e);
+		if (*name == '\0')
+		{
+			*p = savechar;
+			continue;
+		}
+		name = denlstring(name, FALSE, TRUE);
+
+		/* output the name with nice formatting */
+		opos += strlen(name);
+		if (!firstone)
+			opos += 2;
+		if (opos > omax && !firstone)
+		{
+			snprintf(obp, SPACELEFT(obuf, obp), ",\n");
+			putxline(obuf, strlen(obuf), mci, putflags);
+			obp = obuf;
+			(void) strcpy(obp, "        ");
+			opos = strlen(obp);
+			obp += opos;
+			opos += strlen(name);
+		}
+		else if (!firstone)
+		{
+			snprintf(obp, SPACELEFT(obuf, obp), ", ");
+			obp += 2;
+		}
+
+		while ((c = *name++) != '\0' && obp < &obuf[MAXLINE])
+			*obp++ = c;
+		firstone = FALSE;
+		*p = savechar;
+	}
+	*obp = '\0';
+	putxline(obuf, strlen(obuf), mci, putflags);
+}
+/*
+**  COPYHEADER -- copy header list
+**
+**	This routine is the equivalent of newstr for header lists
+**
+**	Parameters:
+**		header -- list of header structures to copy.
+**
+**	Returns:
+**		a copy of 'header'.
+**
+**	Side Effects:
+**		none.
+*/
+
+HDR *
+copyheader(header)
+	register HDR *header;
+{
+	register HDR *newhdr;
+	HDR *ret;
+	register HDR **tail = &ret;
+
+	while (header != NULL)
+	{
+		newhdr = (HDR *) xalloc(sizeof(HDR));
+		STRUCTCOPY(*header, *newhdr);
+		*tail = newhdr;
+		tail = &newhdr->h_link;
+		header = header->h_link;
+	}
+	*tail = NULL;
+	
+	return ret;
+}
diff --git a/src/ldap_map.h b/src/ldap_map.h
new file mode 100644
index 0000000..dd85da3
--- /dev/null
+++ b/src/ldap_map.h
@@ -0,0 +1,62 @@
+/*
+**  Support for LDAP.
+**
+**	Contributed by Booker C. Bense <bbense@networking.stanford.edu>.
+**	Please go to him for support -- since I (Eric) don't run LDAP, I
+**	can't help you at all.
+**
+**	@(#)ldap_map.h	8.4 (Berkeley) 6/3/97
+*/
+
+#ifndef _LDAP_MAP_H
+#define _LDAP_MAP_H
+
+#include <sys/time.h>
+
+struct ldap_map_struct
+{
+	/* needed for ldap_open */
+	char		*ldaphost;
+	int		ldapport;
+
+	/* Options set in ld struct before ldap_bind_s */
+	int		deref;
+	int		timelimit;
+	int		sizelimit;
+	int		ldap_options;
+
+	/* args for ldap_bind_s */
+	LDAP		*ld;
+	char		*binddn;
+	char		*passwd;
+	int		method;
+
+	/* args for ldap_search_st */
+	char		*base;
+	int		scope;
+	char		*filter;
+	char		*attr[2];
+	int		attrsonly;
+	struct timeval	timeout;
+	LDAPMessage	*res;
+};
+
+typedef struct ldap_map_struct	LDAP_MAP_STRUCT;
+
+#define DEFAULT_LDAP_MAP_PORT		LDAP_PORT
+#define DEFAULT_LDAP_MAP_SCOPE		LDAP_SCOPE_SUBTREE
+#define DEFAULT_LDAP_MAP_BINDDN		NULL
+#define DEFAULT_LDAP_MAP_PASSWD		NULL
+#define DEFAULT_LDAP_MAP_METHOD		LDAP_AUTH_SIMPLE
+#define DEFAULT_LDAP_MAP_TIMELIMIT	5
+#define DEFAULT_LDAP_MAP_DEREF		LDAP_DEREF_NEVER
+#define DEFAULT_LDAP_MAP_SIZELIMIT	0
+#define DEFAULT_LDAP_MAP_ATTRSONLY	0
+#define LDAP_MAP_MAX_FILTER		256
+#ifdef LDAP_REFERRALS
+# define DEFAULT_LDAP_MAP_LDAP_OPTIONS	LDAP_OPT_REFERRALS
+#else /* LDAP_REFERRALS */
+# define DEFAULT_LDAP_MAP_LDAP_OPTIONS	0
+#endif /* LDAP_REFERRALS */
+
+#endif /* _LDAP_MAP_H */
diff --git a/src/macro.c b/src/macro.c
new file mode 100644
index 0000000..0f31d11
--- /dev/null
+++ b/src/macro.c
@@ -0,0 +1,457 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)macro.c	8.18 (Berkeley) 2/1/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+char	*MacroName[256];	/* macro id to name table */
+int	NextMacroId = 0240;	/* codes for long named macros */
+
+
+/*
+**  EXPAND -- macro expand a string using $x escapes.
+**
+**	Parameters:
+**		s -- the string to expand.
+**		buf -- the place to put the expansion.
+**		bufsize -- the size of the buffer.
+**		e -- envelope in which to work.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+void
+expand(s, buf, bufsize, e)
+	register char *s;
+	register char *buf;
+	size_t bufsize;
+	register ENVELOPE *e;
+{
+	register char *xp;
+	register char *q;
+	bool skipping;		/* set if conditionally skipping output */
+	bool recurse = FALSE;	/* set if recursion required */
+	int i;
+	int skiplev;		/* skipping nesting level */
+	int iflev;		/* if nesting level */
+	char xbuf[BUFSIZ];
+	static int explevel = 0;
+
+	if (tTd(35, 24))
+	{
+		printf("expand(");
+		xputs(s);
+		printf(")\n");
+	}
+
+	skipping = FALSE;
+	skiplev = 0;
+	iflev = 0;
+	if (s == NULL)
+		s = "";
+	for (xp = xbuf; *s != '\0'; s++)
+	{
+		int c;
+
+		/*
+		**  Check for non-ordinary (special?) character.
+		**	'q' will be the interpolated quantity.
+		*/
+
+		q = NULL;
+		c = *s;
+		switch (c & 0377)
+		{
+		  case CONDIF:		/* see if var set */
+			iflev++;
+			c = *++s;
+			if (skipping)
+				skiplev++;
+			else
+				skipping = macvalue(c, e) == NULL;
+			continue;
+
+		  case CONDELSE:	/* change state of skipping */
+			if (iflev == 0)
+				break;
+			if (skiplev == 0)
+				skipping = !skipping;
+			continue;
+
+		  case CONDFI:		/* stop skipping */
+			if (iflev == 0)
+				break;
+			iflev--;
+			if (skiplev == 0)
+				skipping = FALSE;
+			if (skipping)
+				skiplev--;
+			continue;
+
+		  case MACROEXPAND:	/* macro interpolation */
+			c = *++s & 0377;
+			if (c != '\0')
+				q = macvalue(c, e);
+			else
+			{
+				s--;
+				q = NULL;
+			}
+			if (q == NULL)
+				continue;
+			break;
+		}
+
+		/*
+		**  Interpolate q or output one character
+		*/
+
+		if (skipping || xp >= &xbuf[sizeof xbuf - 1])
+			continue;
+		if (q == NULL)
+			*xp++ = c;
+		else
+		{
+			/* copy to end of q or max space remaining in buf */
+			while ((c = *q++) != '\0' && xp < &xbuf[sizeof xbuf - 1])
+			{
+				/* check for any sendmail metacharacters */
+				if ((c & 0340) == 0200)
+					recurse = TRUE;
+				*xp++ = c;
+			}
+		}
+	}
+	*xp = '\0';
+
+	if (tTd(35, 24))
+	{
+		printf("expand ==> ");
+		xputs(xbuf);
+		printf("\n");
+	}
+
+	/* recurse as appropriate */
+	if (recurse)
+	{
+		if (explevel < MaxMacroRecursion)
+		{
+			explevel++;
+			expand(xbuf, buf, bufsize, e);
+			explevel--;
+			return;
+		}
+		syserr("expand: recursion too deep (%d max)",
+			MaxMacroRecursion);
+	}
+
+	/* copy results out */
+	i = xp - xbuf;
+	if (i >= bufsize)
+		i = bufsize - 1;
+	bcopy(xbuf, buf, i);
+	buf[i] = '\0';
+}
+/*
+**  DEFINE -- define a macro.
+**
+**	this would be better done using a #define macro.
+**
+**	Parameters:
+**		n -- the macro name.
+**		v -- the macro value.
+**		e -- the envelope to store the definition in.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		e->e_macro[n] is defined.
+**
+**	Notes:
+**		There is one macro for each ASCII character,
+**		although they are not all used.  The currently
+**		defined macros are:
+**
+**		$a   date in ARPANET format (preferring the Date: line
+**		     of the message)
+**		$b   the current date (as opposed to the date as found
+**		     the message) in ARPANET format
+**		$c   hop count
+**		$d   (current) date in UNIX (ctime) format
+**		$e   the SMTP entry message+
+**		$f   raw from address
+**		$g   translated from address
+**		$h   to host
+**		$i   queue id
+**		$j   official SMTP hostname, used in messages+
+**		$k   UUCP node name
+**		$l   UNIX-style from line+
+**		$m   The domain part of our full name.
+**		$n   name of sendmail ("MAILER-DAEMON" on local
+**		     net typically)+
+**		$o   delimiters ("operators") for address tokens+
+**		$p   my process id in decimal
+**		$q   the string that becomes an address -- this is
+**		     normally used to combine $g & $x.
+**		$r   protocol used to talk to sender
+**		$s   sender's host name
+**		$t   the current time in seconds since 1/1/1970
+**		$u   to user
+**		$v   version number of sendmail
+**		$w   our host name (if it can be determined)
+**		$x   signature (full name) of from person
+**		$y   the tty id of our terminal
+**		$z   home directory of to person
+**		$_   RFC1413 authenticated sender address
+**
+**		Macros marked with + must be defined in the
+**		configuration file and are used internally, but
+**		are not set.
+**
+**		There are also some macros that can be used
+**		arbitrarily to make the configuration file
+**		cleaner.  In general all upper-case letters
+**		are available.
+*/
+
+void
+define(n, v, e)
+	int n;
+	char *v;
+	register ENVELOPE *e;
+{
+	if (tTd(35, 9))
+	{
+		printf("%sdefine(%s as ", 
+		    (e->e_macro[n & 0377] == NULL) ? "" : "re", macname(n));
+		xputs(v);
+		printf(")\n");
+	}
+	e->e_macro[n & 0377] = v;
+}
+/*
+**  MACVALUE -- return uninterpreted value of a macro.
+**
+**	Parameters:
+**		n -- the name of the macro.
+**
+**	Returns:
+**		The value of n.
+**
+**	Side Effects:
+**		none.
+*/
+
+char *
+macvalue(n, e)
+	int n;
+	register ENVELOPE *e;
+{
+	n &= 0377;
+	while (e != NULL)
+	{
+		register char *p = e->e_macro[n];
+
+		if (p != NULL)
+			return (p);
+		e = e->e_parent;
+	}
+	return (NULL);
+}
+/*
+**  MACNAME -- return the name of a macro given its internal id
+**
+**	Parameter:
+**		n -- the id of the macro
+**
+**	Returns:
+**		The name of n.
+**
+**	Side Effects:
+**		none.
+*/
+
+char *
+macname(n)
+	int n;
+{
+	static char mbuf[2];
+
+	n &= 0377;
+	if (bitset(0200, n))
+	{
+		char *p = MacroName[n];
+
+		if (p != NULL)
+			return p;
+		return "***UNDEFINED MACRO***";
+	}
+	mbuf[0] = n;
+	mbuf[1] = '\0';
+	return mbuf;
+}
+/*
+**  MACID -- return id of macro identified by its name
+**
+**	Parameters:
+**		p -- pointer to name string -- either a single
+**			character or {name}.
+**		ep -- filled in with the pointer to the byte
+**			after the name.
+**
+**	Returns:
+**		The internal id code for this macro.  This will
+**		fit into a single byte.
+**
+**	Side Effects:
+**		If this is a new macro name, a new id is allocated.
+*/
+
+int
+macid(p, ep)
+	register char *p;
+	char **ep;
+{
+	int mid;
+	register char *bp;
+	char mbuf[21];
+
+	if (tTd(35, 14))
+	{
+		printf("macid(");
+		xputs(p);
+		printf(") => ");
+	}
+
+	if (*p == '\0' || (p[0] == '{' && p[1] == '}'))
+	{
+		syserr("Name required for macro/class");
+		if (ep != NULL)
+			*ep = p;
+		if (tTd(35, 14))
+			printf("NULL\n");
+		return '\0';
+	}
+	if (*p != '{')
+	{
+		/* the macro is its own code */
+		if (ep != NULL)
+			*ep = p + 1;
+		if (tTd(35, 14))
+			printf("%c\n", *p);
+		return *p;
+	}
+	bp = mbuf;
+	while (*++p != '\0' && *p != '}' && bp < &mbuf[sizeof mbuf])
+	{
+		if (isascii(*p) && (isalnum(*p) || *p == '_'))
+			*bp++ = *p;
+		else
+			syserr("Invalid macro/class character %c", *p);
+	}
+	*bp = '\0';
+	mid = -1;
+	if (*p == '\0')
+	{
+		syserr("Unbalanced { on %s", mbuf);	/* missing } */
+	}
+	else if (*p != '}')
+	{
+		syserr("Macro/class name ({%s}) too long (%d chars max)",
+			mbuf, sizeof mbuf - 1);
+	}
+	else if (mbuf[1] == '\0')
+	{
+		/* ${x} == $x */
+		mid = mbuf[0];
+		p++;
+	}
+	else
+	{
+		register STAB *s;
+
+		s = stab(mbuf, ST_MACRO, ST_ENTER);
+		if (s->s_macro != 0)
+			mid = s->s_macro;
+		else
+		{
+			if (NextMacroId > 0377)
+			{
+				syserr("Macro/class {%s}: too many long names", mbuf);
+				s->s_macro = -1;
+			}
+			else
+			{
+				MacroName[NextMacroId] = s->s_name;
+				s->s_macro = mid = NextMacroId++;
+			}
+		}
+		p++;
+	}
+	if (ep != NULL)
+		*ep = p;
+	if (tTd(35, 14))
+		printf("0x%x\n", mid);
+	return mid;
+}
+/*
+**  WORDINCLASS -- tell if a word is in a specific class
+**
+**	Parameters:
+**		str -- the name of the word to look up.
+**		cl -- the class name.
+**
+**	Returns:
+**		TRUE if str can be found in cl.
+**		FALSE otherwise.
+*/
+
+bool
+wordinclass(str, cl)
+	char *str;
+	int cl;
+{
+	register STAB *s;
+
+	s = stab(str, ST_CLASS, ST_FIND);
+	return s != NULL && bitnset(cl & 0xff, s->s_class);
+}
diff --git a/src/mailq.0 b/src/mailq.0
new file mode 100644
index 0000000..f1a996f
--- /dev/null
+++ b/src/mailq.0
@@ -0,0 +1,41 @@
+MAILQ(1)                     BSD Reference Manual                     MAILQ(1)
+
+NNAAMMEE
+     mmaaiillqq - print the mail queue
+
+SSYYNNOOPPSSIISS
+     mmaaiillqq [--vv]
+
+DDEESSCCRRIIPPTTIIOONN
+     MMaaiillqq prints a summary of the mail messages queued for future delivery.
+
+     The first line printed for each message shows the internal identifier
+     used on this host for the message, the size of the message in bytes, the
+     date and time the message was accepted into the queue, and the envelope
+     sender of the message.  The second line shows the error message that
+     caused this message to be retained in the queue; it will not be present
+     if the message is being processed for the first time.  The following
+     lines show message recipients, one per line.
+
+     MMaaiillqq is identical to ``sendmail -bp''.
+
+     The options are as follows:
+
+     --vv      Print verbose information.  This adds the priority of the message
+             and a single character indicator (``+'' or blank) indicating
+             whether a warning message has been sent on the first line of the
+             message.  Additionally, extra lines may be intermixed with the
+             recipients indicating the ``controlling user'' information; this
+             shows who will own any programs that are executed on behalf of
+             this message and the name of the alias this command expanded
+             from, if any.
+
+     The mmaaiillqq utility exits 0 on success, and >0 if an error occurs.
+
+SSEEEE AALLSSOO
+     sendmail(8)
+
+HHIISSTTOORRYY
+     The mmaaiillqq command appeared in 4.0BSD.
+
+4th Berkeley Distribution      February 22, 1994                             1
diff --git a/src/mailq.1 b/src/mailq.1
new file mode 100644
index 0000000..b489f31
--- /dev/null
+++ b/src/mailq.1
@@ -0,0 +1,89 @@
+.\" Copyright (c) 1983, 1997 Eric P. Allman
+.\" Copyright (c) 1985, 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)mailq.1	8.5 (Berkeley) 2/1/97
+.\"
+.Dd February 1, 1997
+.Dt MAILQ 1
+.Os BSD 4
+.Sh NAME
+.Nm mailq
+.Nd print the mail queue
+.Sh SYNOPSIS
+.Nm mailq
+.Op Fl v
+.Sh DESCRIPTION
+.Nm Mailq
+prints a summary of the mail messages queued for future delivery.
+.Pp
+The first line printed for each message
+shows the internal identifier used on this host
+for the message,
+the size of the message in bytes,
+the date and time the message was accepted into the queue,
+and the envelope sender of the message.
+The second line shows the error message that caused this message
+to be retained in the queue;
+it will not be present if the message is being processed
+for the first time.
+The following lines show message recipients,
+one per line.
+.Pp
+.Nm Mailq
+is identical to
+.Dq Li "sendmail -bp" .
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl v
+Print verbose information.
+This adds the priority of the message and
+a single character indicator (``+'' or blank)
+indicating whether a warning message has been sent
+on the first line of the message.
+Additionally, extra lines may be intermixed with the recipients
+indicating the ``controlling user'' information;
+this shows who will own any programs that are executed
+on behalf of this message
+and the name of the alias this command expanded from, if any.
+.El
+.Pp
+The
+.Nm mailq
+utility exits 0 on success, and >0 if an error occurs.
+.Sh SEE ALSO
+.Xr sendmail 8
+.Sh HISTORY
+The
+.Nm mailq
+command appeared in
+.Bx 4.0 .
diff --git a/src/mailstats.h b/src/mailstats.h
new file mode 100644
index 0000000..0164d91
--- /dev/null
+++ b/src/mailstats.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 1983 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)mailstats.h	8.1 (Berkeley) 6/7/93
+ */
+
+/*
+**  Statistics structure.
+*/
+
+struct statistics
+{
+	time_t	stat_itime;		/* file initialization time */
+	short	stat_size;		/* size of this structure */
+	long	stat_nf[MAXMAILERS];	/* # msgs from each mailer */
+	long	stat_bf[MAXMAILERS];	/* kbytes from each mailer */
+	long	stat_nt[MAXMAILERS];	/* # msgs to each mailer */
+	long	stat_bt[MAXMAILERS];	/* kbytes to each mailer */
+};
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..c496adb
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,2572 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)main.c	8.258 (Berkeley) 10/20/97";
+#endif /* not lint */
+
+#define	_DEFINE
+
+#include "sendmail.h"
+#include <arpa/inet.h>
+#if NAMED_BIND
+#include <resolv.h>
+#endif
+
+/*
+**  SENDMAIL -- Post mail to a set of destinations.
+**
+**	This is the basic mail router.  All user mail programs should
+**	call this routine to actually deliver mail.  Sendmail in
+**	turn calls a bunch of mail servers that do the real work of
+**	delivering the mail.
+**
+**	Sendmail is driven by settings read in from /etc/sendmail.cf
+**	(read by readcf.c).
+**
+**	Usage:
+**		/usr/lib/sendmail [flags] addr ...
+**
+**		See the associated documentation for details.
+**
+**	Author:
+**		Eric Allman, UCB/INGRES (until 10/81).
+**			     Britton-Lee, Inc., purveyors of fine
+**				database computers (11/81 - 10/88).
+**			     International Computer Science Institute
+**				(11/88 - 9/89).
+**			     UCB/Mammoth Project (10/89 - 7/95).
+**			     InReference, Inc. (8/95 - 1/97).
+**		The support of the my employers is gratefully acknowledged.
+**			Few of them (Britton-Lee in particular) have had
+**			anything to gain from my involvement in this project.
+*/
+
+
+int		NextMailer;	/* "free" index into Mailer struct */
+char		*FullName;	/* sender's full name */
+ENVELOPE	BlankEnvelope;	/* a "blank" envelope */
+ENVELOPE	MainEnvelope;	/* the envelope around the basic letter */
+ADDRESS		NullAddress =	/* a null address */
+		{ "", "", NULL, "" };
+char		*CommandLineArgs;	/* command line args for pid file */
+bool		Warn_Q_option = FALSE;	/* warn about Q option use */
+char		**SaveArgv;	/* argument vector for re-execing */
+int		MissingFds = 0;	/* bit map of fds missing on startup */
+
+#ifdef NGROUPS_MAX
+GIDSET_T	InitialGidSet[NGROUPS_MAX];
+#endif
+
+static void	obsolete();
+extern void	printmailer __P((MAILER *));
+extern void	tTflag __P((char *));
+
+#if DAEMON && !SMTP
+ERROR %%%%   Cannot have DAEMON mode without SMTP   %%%% ERROR
+#endif /* DAEMON && !SMTP */
+#if SMTP && !QUEUE
+ERROR %%%%   Cannot have SMTP mode without QUEUE   %%%% ERROR
+#endif /* DAEMON && !SMTP */
+
+#define MAXCONFIGLEVEL	7	/* highest config version level known */
+
+int
+main(argc, argv, envp)
+	int argc;
+	char **argv;
+	char **envp;
+{
+	register char *p;
+	char **av;
+	extern char Version[];
+	char *ep, *from;
+	STAB *st;
+	register int i;
+	int j;
+	bool queuemode = FALSE;		/* process queue requests */
+	bool safecf = TRUE;
+	bool warn_C_flag = FALSE;
+	char warn_f_flag = '\0';
+	bool run_in_foreground = FALSE;	/* -bD mode */
+	static bool reenter = FALSE;
+	struct passwd *pw;
+	struct hostent *hp;
+	bool nullserver = FALSE;
+	char jbuf[MAXHOSTNAMELEN];	/* holds MyHostName */
+	static char rnamebuf[MAXNAME];	/* holds RealUserName */
+	char *emptyenviron[1];
+	extern int DtableSize;
+	extern int optind;
+	extern int opterr;
+	extern char *optarg;
+	extern char **environ;
+	extern time_t convtime();
+	extern SIGFUNC_DECL intsig __P((int));
+	extern struct hostent *myhostname();
+	extern char *getauthinfo();
+	extern char *getcfname();
+	extern SIGFUNC_DECL sigusr1 __P((int));
+	extern SIGFUNC_DECL sighup __P((int));
+	extern void initmacros __P((ENVELOPE *));
+	extern void init_md __P((int, char **));
+	extern int getdtsize __P((void));
+	extern void tTsetup __P((u_char *, int, char *));
+	extern void setdefaults __P((ENVELOPE *));
+	extern void initsetproctitle __P((int, char **, char **));
+	extern void init_vendor_macros __P((ENVELOPE *));
+	extern void load_if_names __P((void));
+	extern void vendor_pre_defaults __P((ENVELOPE *));
+	extern void vendor_post_defaults __P((ENVELOPE *));
+	extern void readcf __P((char *, bool, ENVELOPE *));
+	extern void printqueue __P((void));
+	extern void sendtoargv __P((char **, ENVELOPE *));
+	extern void resetlimits __P((void));
+
+	/*
+	**  Check to see if we reentered.
+	**	This would normally happen if e_putheader or e_putbody
+	**	were NULL when invoked.
+	*/
+
+	if (reenter)
+	{
+		syserr("main: reentered!");
+		abort();
+	}
+	reenter = TRUE;
+
+	/* avoid null pointer dereferences */
+	TermEscape.te_rv_on = TermEscape.te_rv_off = "";
+
+	/* do machine-dependent initializations */
+	init_md(argc, argv);
+
+	/* in 4.4BSD, the table can be huge; impose a reasonable limit */
+	DtableSize = getdtsize();
+	if (DtableSize > 256)
+		DtableSize = 256;
+
+	/*
+	**  Be sure we have enough file descriptors.
+	**	But also be sure that 0, 1, & 2 are open.
+	*/
+
+	fill_fd(STDIN_FILENO, NULL);
+	fill_fd(STDOUT_FILENO, NULL);
+	fill_fd(STDERR_FILENO, NULL);
+
+	i = DtableSize;
+	while (--i > 0)
+	{
+		if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO)
+			(void) close(i);
+	}
+	errno = 0;
+
+#if LOG
+# ifdef LOG_MAIL
+	openlog("sendmail", LOG_PID, LOG_MAIL);
+# else 
+	openlog("sendmail", LOG_PID);
+# endif
+#endif 
+
+	if (MissingFds != 0)
+	{
+		char mbuf[MAXLINE];
+
+		mbuf[0] = '\0';
+		if (bitset(1 << STDIN_FILENO, MissingFds))
+			strcat(mbuf, ", stdin");
+		if (bitset(1 << STDOUT_FILENO, MissingFds))
+			strcat(mbuf, ", stdout");
+		if (bitset(1 << STDERR_FILENO, MissingFds))
+			strcat(mbuf, ", stderr");
+		syserr("File descriptors missing on startup: %s", &mbuf[2]);
+	}
+
+	/* reset status from syserr() calls for missing file descriptors */
+	Errors = 0;
+	ExitStat = EX_OK;
+
+#if XDEBUG
+	checkfd012("after openlog");
+#endif
+
+	tTsetup(tTdvect, sizeof tTdvect, "0-99.1");
+
+#ifdef NGROUPS_MAX
+	/* save initial group set for future checks */
+	i = getgroups(NGROUPS_MAX, InitialGidSet);
+	if (i == 0)
+		InitialGidSet[0] = (GID_T) -1;
+	while (i < NGROUPS_MAX)
+		InitialGidSet[i++] = InitialGidSet[0];
+#endif
+
+	/* drop group id privileges (RunAsUser not yet set) */
+	(void) drop_privileges(FALSE);
+
+#ifdef SIGUSR1
+	/* arrange to dump state on user-1 signal */
+	setsignal(SIGUSR1, sigusr1);
+#endif
+
+	/* Handle any non-getoptable constructions. */
+	obsolete(argv);
+
+	/*
+	**  Do a quick prescan of the argument list.
+	*/
+
+#if defined(__osf__) || defined(_AIX3)
+# define OPTIONS	"B:b:C:cd:e:F:f:h:IiM:mN:nO:o:p:q:R:r:sTtUV:vX:x"
+#endif
+#if defined(sony_news)
+# define OPTIONS	"B:b:C:cd:E:e:F:f:h:IiJ:M:mN:nO:o:p:q:R:r:sTtUV:vX:"
+#endif
+#ifndef OPTIONS
+# define OPTIONS	"B:b:C:cd:e:F:f:h:IiM:mN:nO:o:p:q:R:r:sTtUV:vX:"
+#endif
+	opterr = 0;
+	while ((j = getopt(argc, argv, OPTIONS)) != -1)
+	{
+		switch (j)
+		{
+		  case 'd':
+			/* hack attack -- see if should use ANSI mode */
+			if (strcmp(optarg, "ANSI") == 0)
+			{
+				TermEscape.te_rv_on = "\033[7m";
+				TermEscape.te_rv_off = "\033[0m";
+				break;
+			}
+			tTflag(optarg);
+			setbuf(stdout, (char *) NULL);
+			break;
+		}
+	}
+	opterr = 1;
+
+	/* set up the blank envelope */
+	BlankEnvelope.e_puthdr = putheader;
+	BlankEnvelope.e_putbody = putbody;
+	BlankEnvelope.e_xfp = NULL;
+	STRUCTCOPY(NullAddress, BlankEnvelope.e_from);
+	CurEnv = &BlankEnvelope;
+	STRUCTCOPY(NullAddress, MainEnvelope.e_from);
+
+	/*
+	**  Set default values for variables.
+	**	These cannot be in initialized data space.
+	*/
+
+	setdefaults(&BlankEnvelope);
+
+	RealUid = getuid();
+	RealGid = getgid();
+
+	pw = sm_getpwuid(RealUid);
+	if (pw != NULL)
+		(void) snprintf(rnamebuf, sizeof rnamebuf, "%s", pw->pw_name);
+	else
+		(void) snprintf(rnamebuf, sizeof rnamebuf, "Unknown UID %d", RealUid);
+	RealUserName = rnamebuf;
+
+	/* if running non-setuid binary, pretend we are the RunAsUid */
+	if (geteuid() == RealUid)
+	{
+		if (tTd(47, 1))
+			printf("Non-setuid binary: RunAsUid = RealUid = %d\n",
+				RealUid);
+		RunAsUid = RealUid;
+	}
+	if (getegid() == RealGid)
+		RunAsGid = RealGid;
+
+	/* save command line arguments */
+	i = 0;
+	for (av = argv; *av != NULL; )
+		i += strlen(*av++) + 1;
+	SaveArgv = (char **) xalloc(sizeof (char *) * (argc + 1));
+	CommandLineArgs = xalloc(i);
+	p = CommandLineArgs;
+	for (av = argv, i = 0; *av != NULL; )
+	{
+		SaveArgv[i++] = newstr(*av);
+		if (av != argv)
+			*p++ = ' ';
+		strcpy(p, *av++);
+		p += strlen(p);
+	}
+	SaveArgv[i] = NULL;
+
+	if (tTd(0, 1))
+	{
+		int ll;
+		extern char *CompileOptions[];
+
+		printf("Version %s\n Compiled with:", Version);
+		av = CompileOptions;
+		ll = 7;
+		while (*av != NULL)
+		{
+			if (ll + strlen(*av) > 63)
+			{
+				putchar('\n');
+				ll = 0;
+			}
+			if (ll == 0)
+			{
+				putchar('\t');
+				putchar('\t');
+			}
+			else
+				putchar(' ');
+			printf("%s", *av);
+			ll += strlen(*av++) + 1;
+		}
+		putchar('\n');
+	}
+	if (tTd(0, 10))
+	{
+		int ll;
+		extern char *OsCompileOptions[];
+
+		printf("    OS Defines:");
+		av = OsCompileOptions;
+		ll = 7;
+		while (*av != NULL)
+		{
+			if (ll + strlen(*av) > 63)
+			{
+				putchar('\n');
+				ll = 0;
+			}
+			if (ll == 0)
+			{
+				putchar('\t');
+				putchar('\t');
+			}
+			else
+				putchar(' ');
+			printf("%s", *av);
+			ll += strlen(*av++) + 1;
+		}
+		putchar('\n');
+#ifdef _PATH_UNIX
+		printf("Kernel symbols:\t%s\n", _PATH_UNIX);
+#endif
+		printf(" Def Conf file:\t%s\n", getcfname());
+		printf("      Pid file:\t%s\n", PidFile);
+	}
+
+	InChannel = stdin;
+	OutChannel = stdout;
+
+	/* initialize for setproctitle */
+	initsetproctitle(argc, argv, envp);
+
+	/* clear sendmail's environment */
+	ExternalEnviron = environ;
+	emptyenviron[0] = NULL;
+	environ = emptyenviron;
+
+	/* prime the child environment */
+	setuserenv("AGENT", "sendmail");
+
+	if (setsignal(SIGINT, SIG_IGN) != SIG_IGN)
+		(void) setsignal(SIGINT, intsig);
+	(void) setsignal(SIGTERM, intsig);
+	(void) setsignal(SIGPIPE, SIG_IGN);
+	OldUmask = umask(022);
+	OpMode = MD_DELIVER;
+	FullName = getextenv("NAME");
+
+	/*
+	**  Initialize name server if it is going to be used.
+	*/
+
+#if NAMED_BIND
+	if (!bitset(RES_INIT, _res.options))
+		res_init();
+	if (tTd(8, 8))
+		_res.options |= RES_DEBUG;
+	else
+		_res.options &= ~RES_DEBUG;
+# ifdef RES_NOALIASES
+	_res.options |= RES_NOALIASES;
+# endif
+#endif
+
+	errno = 0;
+	from = NULL;
+
+	/* initialize some macros, etc. */
+	initmacros(CurEnv);
+	init_vendor_macros(CurEnv);
+
+	/* version */
+	define('v', Version, CurEnv);
+
+	/* hostname */
+	hp = myhostname(jbuf, sizeof jbuf);
+	if (jbuf[0] != '\0')
+	{
+		struct	utsname	utsname;
+
+		if (tTd(0, 4))
+			printf("canonical name: %s\n", jbuf);
+		define('w', newstr(jbuf), CurEnv);	/* must be new string */
+		define('j', newstr(jbuf), CurEnv);
+		setclass('w', jbuf);
+
+		p = strchr(jbuf, '.');
+		if (p != NULL)
+		{
+			if (p[1] != '\0')
+			{
+				define('m', newstr(&p[1]), CurEnv);
+			}
+			while (p != NULL && strchr(&p[1], '.') != NULL)
+			{
+				*p = '\0';
+				if (tTd(0, 4))
+					printf("\ta.k.a.: %s\n", jbuf);
+				setclass('w', jbuf);
+				*p++ = '.';
+				p = strchr(p, '.');
+			}
+		}
+
+		if (uname(&utsname) >= 0)
+			p = utsname.nodename;
+		else
+		{
+			if (tTd(0, 22))
+				printf("uname failed (%s)\n", errstring(errno));
+			makelower(jbuf);
+			p = jbuf;
+		}
+		if (tTd(0, 4))
+			printf(" UUCP nodename: %s\n", p);
+		p = newstr(p);
+		define('k', p, CurEnv);
+		setclass('k', p);
+		setclass('w', p);
+	}
+	if (hp != NULL)
+	{
+		for (av = hp->h_aliases; av != NULL && *av != NULL; av++)
+		{
+			if (tTd(0, 4))
+				printf("\ta.k.a.: %s\n", *av);
+			setclass('w', *av);
+		}
+#if NETINET
+		if (hp->h_addrtype == AF_INET && hp->h_length == INADDRSZ)
+		{
+			register int i;
+
+			for (i = 0; hp->h_addr_list[i] != NULL; i++)
+			{
+				char ipbuf[103];
+
+				snprintf(ipbuf, sizeof ipbuf, "[%.100s]",
+					inet_ntoa(*((struct in_addr *) hp->h_addr_list[i])));
+				if (tTd(0, 4))
+					printf("\ta.k.a.: %s\n", ipbuf);
+				setclass('w', ipbuf);
+			}
+		}
+#endif
+	}
+
+	/* current time */
+	define('b', arpadate((char *) NULL), CurEnv);
+
+	/*
+	** Crack argv.
+	*/
+
+	av = argv;
+	p = strrchr(*av, '/');
+	if (p++ == NULL)
+		p = *av;
+	if (strcmp(p, "newaliases") == 0)
+		OpMode = MD_INITALIAS;
+	else if (strcmp(p, "mailq") == 0)
+		OpMode = MD_PRINT;
+	else if (strcmp(p, "smtpd") == 0)
+		OpMode = MD_DAEMON;
+	else if (strcmp(p, "hoststat") == 0)
+		OpMode = MD_HOSTSTAT;
+	else if (strcmp(p, "purgestat") == 0)
+		OpMode = MD_PURGESTAT;
+
+	optind = 1;
+	while ((j = getopt(argc, argv, OPTIONS)) != -1)
+	{
+		switch (j)
+		{
+		  case 'b':	/* operations mode */
+			switch (j = *optarg)
+			{
+			  case MD_DAEMON:
+			  case MD_FGDAEMON:
+# if !DAEMON
+				usrerr("Daemon mode not implemented");
+				ExitStat = EX_USAGE;
+				break;
+# endif /* DAEMON */
+			  case MD_SMTP:
+# if !SMTP
+				usrerr("I don't speak SMTP");
+				ExitStat = EX_USAGE;
+				break;
+# endif /* SMTP */
+
+			  case MD_INITALIAS:
+			  case MD_DELIVER:
+			  case MD_VERIFY:
+			  case MD_TEST:
+			  case MD_PRINT:
+			  case MD_HOSTSTAT:
+			  case MD_PURGESTAT:
+			  case MD_ARPAFTP:
+				OpMode = j;
+				break;
+
+			  case MD_FREEZE:
+				usrerr("Frozen configurations unsupported");
+				ExitStat = EX_USAGE;
+				break;
+
+			  default:
+				usrerr("Invalid operation mode %c", j);
+				ExitStat = EX_USAGE;
+				break;
+			}
+			break;
+
+		  case 'B':	/* body type */
+			CurEnv->e_bodytype = optarg;
+			break;
+
+		  case 'C':	/* select configuration file (already done) */
+			if (RealUid != 0)
+				warn_C_flag = TRUE;
+			ConfFile = optarg;
+			(void) drop_privileges(TRUE);
+			safecf = FALSE;
+			break;
+
+		  case 'd':	/* debugging -- already done */
+			break;
+
+		  case 'f':	/* from address */
+		  case 'r':	/* obsolete -f flag */
+			if (from != NULL)
+			{
+				usrerr("More than one \"from\" person");
+				ExitStat = EX_USAGE;
+				break;
+			}
+			from = newstr(denlstring(optarg, TRUE, TRUE));
+			if (strcmp(RealUserName, from) != 0)
+				warn_f_flag = j;
+			break;
+
+		  case 'F':	/* set full name */
+			FullName = newstr(optarg);
+			break;
+
+		  case 'h':	/* hop count */
+			CurEnv->e_hopcount = strtol(optarg, &ep, 10);
+			if (*ep)
+			{
+				usrerr("Bad hop count (%s)", optarg);
+				ExitStat = EX_USAGE;
+			}
+			break;
+		
+		  case 'n':	/* don't alias */
+			NoAlias = TRUE;
+			break;
+
+		  case 'N':	/* delivery status notifications */
+			DefaultNotify |= QHASNOTIFY;
+			if (strcasecmp(optarg, "never") == 0)
+				break;
+			for (p = optarg; p != NULL; optarg = p)
+			{
+				p = strchr(p, ',');
+				if (p != NULL)
+					*p++ = '\0';
+				if (strcasecmp(optarg, "success") == 0)
+					DefaultNotify |= QPINGONSUCCESS;
+				else if (strcasecmp(optarg, "failure") == 0)
+					DefaultNotify |= QPINGONFAILURE;
+				else if (strcasecmp(optarg, "delay") == 0)
+					DefaultNotify |= QPINGONDELAY;
+				else
+				{
+					usrerr("Invalid -N argument");
+					ExitStat = EX_USAGE;
+				}
+			}
+			break;
+
+		  case 'o':	/* set option */
+			setoption(*optarg, optarg + 1, FALSE, TRUE, CurEnv);
+			break;
+
+		  case 'O':	/* set option (long form) */
+			setoption(' ', optarg, FALSE, TRUE, CurEnv);
+			break;
+
+		  case 'p':	/* set protocol */
+			p = strchr(optarg, ':');
+			if (p != NULL)
+			{
+				*p++ = '\0';
+				if (*p != '\0')
+				{
+					ep = xalloc(strlen(p) + 1);
+					cleanstrcpy(ep, p, MAXNAME);
+					define('s', ep, CurEnv);
+				}
+			}
+			if (*optarg != '\0')
+			{
+				ep = xalloc(strlen(optarg) + 1);
+				cleanstrcpy(ep, optarg, MAXNAME);
+				define('r', ep, CurEnv);
+			}
+			break;
+
+		  case 'q':	/* run queue files at intervals */
+# if QUEUE
+			FullName = NULL;
+			queuemode = TRUE;
+			switch (optarg[0])
+			{
+			  case 'I':
+				QueueLimitId = newstr(&optarg[1]);
+				break;
+
+			  case 'R':
+				QueueLimitRecipient = newstr(&optarg[1]);
+				break;
+
+			  case 'S':
+				QueueLimitSender = newstr(&optarg[1]);
+				break;
+
+			  default:
+				QueueIntvl = convtime(optarg, 'm');
+				break;
+			}
+# else /* QUEUE */
+			usrerr("I don't know about queues");
+			ExitStat = EX_USAGE;
+# endif /* QUEUE */
+			break;
+
+		  case 'R':	/* DSN RET: what to return */
+			if (bitset(EF_RET_PARAM, CurEnv->e_flags))
+			{
+				usrerr("Duplicate -R flag");
+				ExitStat = EX_USAGE;
+				break;
+			}
+			CurEnv->e_flags |= EF_RET_PARAM;
+			if (strcasecmp(optarg, "hdrs") == 0)
+				CurEnv->e_flags |= EF_NO_BODY_RETN;
+			else if (strcasecmp(optarg, "full") != 0)
+			{
+				usrerr("Invalid -R value");
+				ExitStat = EX_USAGE;
+			}
+			break;
+
+		  case 't':	/* read recipients from message */
+			GrabTo = TRUE;
+			break;
+
+		  case 'U':	/* initial (user) submission */
+			UserSubmission = TRUE;
+			break;
+
+		  case 'V':	/* DSN ENVID: set "original" envelope id */
+			if (!xtextok(optarg))
+			{
+				usrerr("Invalid syntax in -V flag");
+				ExitStat = EX_USAGE;
+			}
+			else
+				CurEnv->e_envid = newstr(optarg);
+			break;
+
+		  case 'X':	/* traffic log file */
+			(void) drop_privileges(TRUE);
+			TrafficLogFile = fopen(optarg, "a");
+			if (TrafficLogFile == NULL)
+			{
+				syserr("cannot open %s", optarg);
+				ExitStat = EX_CANTCREAT;
+				break;
+			}
+#ifdef HASSETVBUF
+			setvbuf(TrafficLogFile, NULL, _IOLBF, 0);
+#else
+			setlinebuf(TrafficLogFile);
+#endif
+			break;
+
+			/* compatibility flags */
+		  case 'c':	/* connect to non-local mailers */
+		  case 'i':	/* don't let dot stop me */
+		  case 'm':	/* send to me too */
+		  case 'T':	/* set timeout interval */
+		  case 'v':	/* give blow-by-blow description */
+			setoption(j, "T", FALSE, TRUE, CurEnv);
+			break;
+
+		  case 'e':	/* error message disposition */
+		  case 'M':	/* define macro */
+			setoption(j, optarg, FALSE, TRUE, CurEnv);
+			break;
+
+		  case 's':	/* save From lines in headers */
+			setoption('f', "T", FALSE, TRUE, CurEnv);
+			break;
+
+# ifdef DBM
+		  case 'I':	/* initialize alias DBM file */
+			OpMode = MD_INITALIAS;
+			break;
+# endif /* DBM */
+
+# if defined(__osf__) || defined(_AIX3)
+		  case 'x':	/* random flag that OSF/1 & AIX mailx passes */
+			break;
+# endif
+# if defined(sony_news)
+		  case 'E':
+		  case 'J':	/* ignore flags for Japanese code conversion
+				   impremented on Sony NEWS */
+			break;
+# endif
+
+		  default:
+			ExitStat = EX_USAGE;
+			finis();
+			break;
+		}
+	}
+	av += optind;
+
+	/*
+	**  Do basic initialization.
+	**	Read system control file.
+	**	Extract special fields for local use.
+	*/
+
+	/* set up ${opMode} for use in config file */
+	{
+		char mbuf[2];
+
+		mbuf[0] = OpMode;
+		mbuf[1] = '\0';
+		define(MID_OPMODE, newstr(mbuf), CurEnv);
+	}
+
+#if XDEBUG
+	checkfd012("before readcf");
+#endif
+	vendor_pre_defaults(CurEnv);
+	readcf(getcfname(), safecf, CurEnv);
+	ConfigFileRead = TRUE;
+	vendor_post_defaults(CurEnv);
+
+	/* Enforce use of local time (null string overrides this) */
+	if (TimeZoneSpec == NULL)
+		unsetenv("TZ");
+	else if (TimeZoneSpec[0] != '\0')
+		setuserenv("TZ", TimeZoneSpec);
+	else
+		setuserenv("TZ", NULL);
+	tzset();
+
+	/* avoid denial-of-service attacks */
+	resetlimits();
+
+	if (OpMode != MD_DAEMON && OpMode != MD_FGDAEMON)
+	{
+		/* drop privileges -- daemon mode done after socket/bind */
+		(void) drop_privileges(FALSE);
+	}
+
+	/*
+	**  Find our real host name for future logging.
+	*/
+
+	p = getauthinfo(STDIN_FILENO);
+	define('_', p, CurEnv);
+
+	/* suppress error printing if errors mailed back or whatever */
+	if (CurEnv->e_errormode != EM_PRINT)
+		HoldErrs = TRUE;
+
+	/* set up the $=m class now, after .cf has a chance to redefine $m */
+	expand("\201m", jbuf, sizeof jbuf, CurEnv);
+	setclass('m', jbuf);
+
+	/* probe interfaces and locate any additional names */
+	if (!DontProbeInterfaces)
+		load_if_names();
+
+	if (tTd(0, 1))
+	{
+		printf("\n============ SYSTEM IDENTITY (after readcf) ============");
+		printf("\n      (short domain name) $w = ");
+		xputs(macvalue('w', CurEnv));
+		printf("\n  (canonical domain name) $j = ");
+		xputs(macvalue('j', CurEnv));
+		printf("\n         (subdomain name) $m = ");
+		xputs(macvalue('m', CurEnv));
+		printf("\n              (node name) $k = ");
+		xputs(macvalue('k', CurEnv));
+		printf("\n========================================================\n\n");
+	}
+
+	/*
+	**  Do more command line checking -- these are things that
+	**  have to modify the results of reading the config file.
+	*/
+
+	/* process authorization warnings from command line */
+	if (warn_C_flag)
+		auth_warning(CurEnv, "Processed by %s with -C %s",
+			RealUserName, ConfFile);
+	if (Warn_Q_option)
+		auth_warning(CurEnv, "Processed from queue %s", QueueDir);
+
+	/* check body type for legality */
+	if (CurEnv->e_bodytype == NULL)
+		/* nothing */ ;
+	else if (strcasecmp(CurEnv->e_bodytype, "7BIT") == 0)
+		SevenBitInput = TRUE;
+	else if (strcasecmp(CurEnv->e_bodytype, "8BITMIME") == 0)
+		SevenBitInput = FALSE;
+	else
+	{
+		usrerr("Illegal body type %s", CurEnv->e_bodytype);
+		CurEnv->e_bodytype = NULL;
+	}
+
+	/* tweak default DSN notifications */
+	if (DefaultNotify == 0)
+		DefaultNotify = QPINGONFAILURE|QPINGONDELAY;
+
+	/* be sure we don't pick up bogus HOSTALIASES environment variable */
+	if (queuemode && RealUid != 0)
+		(void) unsetenv("HOSTALIASES");
+
+	/* check for sane configuration level */
+	if (ConfigLevel > MAXCONFIGLEVEL)
+	{
+		syserr("Warning: .cf version level (%d) exceeds sendmail version %s functionality (%d)",
+			ConfigLevel, Version, MAXCONFIGLEVEL);
+	}
+
+	/* need MCI cache to have persistence */
+	if (HostStatDir != NULL && MaxMciCache == 0)
+	{
+		HostStatDir = NULL;
+		printf("Warning: HostStatusDirectory disabled with ConnectionCacheSize = 0\n");
+	}
+
+	/* need HostStatusDir in order to have SingleThreadDelivery */
+	if (SingleThreadDelivery && HostStatDir == NULL)
+	{
+		SingleThreadDelivery = FALSE;
+		printf("Warning: HostStatusDirectory required for SingleThreadDelivery\n");
+	}
+
+	/* check for permissions */
+	if ((OpMode == MD_DAEMON || OpMode == MD_PURGESTAT) && RealUid != 0)
+	{
+		if (LogLevel > 1)
+			sm_syslog(LOG_ALERT, NOQID,
+				"user %d attempted to %s",
+				RealUid,
+				OpMode == MD_DAEMON ? "run daemon"
+						    : "purge host status");
+		usrerr("Permission denied");
+		exit(EX_USAGE);
+	}
+
+	if (MeToo)
+		BlankEnvelope.e_flags |= EF_METOO;
+
+	switch (OpMode)
+	{
+	  case MD_TEST:
+		/* don't have persistent host status in test mode */
+		HostStatDir = NULL;
+		Verbose = 2;
+		CurEnv->e_errormode = EM_PRINT;
+		break;
+
+	  case MD_FGDAEMON:
+		run_in_foreground = TRUE;
+		OpMode = MD_DAEMON;
+		/* fall through ... */
+
+	  case MD_DAEMON:
+		vendor_daemon_setup(CurEnv);
+
+		/* remove things that don't make sense in daemon mode */
+		FullName = NULL;
+		GrabTo = FALSE;
+
+		/* arrange to restart on hangup signal */
+		if (SaveArgv[0] == NULL || SaveArgv[0][0] != '/')
+			sm_syslog(LOG_WARNING, NOQID,
+				"daemon invoked without full pathname; kill -1 won't work");
+		setsignal(SIGHUP, sighup);
+
+		/* workaround: can't seem to release the signal in the parent */
+		releasesignal(SIGHUP);
+		break;
+
+	  case MD_INITALIAS:
+		Verbose = 2;
+		CurEnv->e_errormode = EM_PRINT;
+		/* fall through... */
+
+	  case MD_PRINT:
+		/* to handle sendmail -bp -qSfoobar properly */
+		queuemode = FALSE;
+		/* fall through... */
+
+	  default:
+		/* arrange to exit cleanly on hangup signal */
+		if (setsignal(SIGHUP, SIG_IGN) == (sigfunc_t) SIG_DFL)
+			setsignal(SIGHUP, intsig);
+		break;
+	}
+
+	/* full names can't have newlines */
+	if (FullName != NULL && strchr(FullName, '\n') != NULL)
+		FullName = newstr(denlstring(FullName, TRUE, TRUE));
+
+	/* do heuristic mode adjustment */
+	if (Verbose)
+	{
+		/* turn off noconnect option */
+		setoption('c', "F", TRUE, FALSE, CurEnv);
+
+		/* turn on interactive delivery */
+		setoption('d', "", TRUE, FALSE, CurEnv);
+	}
+
+	if (ConfigLevel < 3)
+	{
+		UseErrorsTo = TRUE;
+	}
+
+	/* set options that were previous macros */
+	if (SmtpGreeting == NULL)
+	{
+		if (ConfigLevel < 7 && (p = macvalue('e', CurEnv)) != NULL)
+			SmtpGreeting = newstr(p);
+		else
+			SmtpGreeting = "\201j Sendmail \201v ready at \201b";
+	}
+	if (UnixFromLine == NULL)
+	{
+		if (ConfigLevel < 7 && (p = macvalue('l', CurEnv)) != NULL)
+			UnixFromLine = newstr(p);
+		else
+			UnixFromLine = "From \201g  \201d";
+	}
+
+	/* our name for SMTP codes */
+	expand("\201j", jbuf, sizeof jbuf, CurEnv);
+	MyHostName = jbuf;
+	if (strchr(jbuf, '.') == NULL)
+		message("WARNING: local host name (%s) is not qualified; fix $j in config file",
+			jbuf);
+
+	/* make certain that this name is part of the $=w class */
+	setclass('w', MyHostName);
+
+	/* the indices of built-in mailers */
+	st = stab("local", ST_MAILER, ST_FIND);
+	if (st != NULL)
+		LocalMailer = st->s_mailer;
+	else if (OpMode != MD_TEST || !warn_C_flag)
+		syserr("No local mailer defined");
+
+	st = stab("prog", ST_MAILER, ST_FIND);
+	if (st == NULL)
+		syserr("No prog mailer defined");
+	else
+	{
+		ProgMailer = st->s_mailer;
+		clrbitn(M_MUSER, ProgMailer->m_flags);
+	}
+
+	st = stab("*file*", ST_MAILER, ST_FIND);
+	if (st == NULL)
+		syserr("No *file* mailer defined");
+	else
+	{
+		FileMailer = st->s_mailer;
+		clrbitn(M_MUSER, FileMailer->m_flags);
+	}
+
+	st = stab("*include*", ST_MAILER, ST_FIND);
+	if (st == NULL)
+		syserr("No *include* mailer defined");
+	else
+		InclMailer = st->s_mailer;
+
+	if (ConfigLevel < 6)
+	{
+		/* heuristic tweaking of local mailer for back compat */
+		if (LocalMailer != NULL)
+		{
+			setbitn(M_ALIASABLE, LocalMailer->m_flags);
+			setbitn(M_HASPWENT, LocalMailer->m_flags);
+			setbitn(M_TRYRULESET5, LocalMailer->m_flags);
+			setbitn(M_CHECKINCLUDE, LocalMailer->m_flags);
+			setbitn(M_CHECKPROG, LocalMailer->m_flags);
+			setbitn(M_CHECKFILE, LocalMailer->m_flags);
+			setbitn(M_CHECKUDB, LocalMailer->m_flags);
+		}
+		if (ProgMailer != NULL)
+			setbitn(M_RUNASRCPT, ProgMailer->m_flags);
+		if (FileMailer != NULL)
+			setbitn(M_RUNASRCPT, FileMailer->m_flags);
+	}
+	if (ConfigLevel < 7)
+	{
+		if (LocalMailer != NULL)
+			setbitn(M_VRFY250, LocalMailer->m_flags);
+		if (ProgMailer != NULL)
+			setbitn(M_VRFY250, ProgMailer->m_flags);
+		if (FileMailer != NULL)
+			setbitn(M_VRFY250, FileMailer->m_flags);
+	}
+
+	/* MIME Content-Types that cannot be transfer encoded */
+	setclass('n', "multipart/signed");
+
+	/* MIME message/xxx subtypes that can be treated as messages */
+	setclass('s', "rfc822");
+
+	/* MIME Content-Transfer-Encodings that can be encoded */
+	setclass('e', "7bit");
+	setclass('e', "8bit");
+	setclass('e', "binary");
+
+#ifdef USE_B_CLASS
+	/* MIME Content-Types that should be treated as binary */
+	setclass('b', "image");
+	setclass('b', "audio");
+	setclass('b', "video");
+	setclass('b', "application/octet-stream");
+#endif
+
+	/* operate in queue directory */
+	if (QueueDir == NULL)
+	{
+		if (OpMode != MD_TEST)
+		{
+			syserr("QueueDirectory (Q) option must be set");
+			ExitStat = EX_CONFIG;
+		}
+	}
+	else
+	{
+		/* test path to get warning messages */
+		(void) safedirpath(QueueDir, (uid_t) 0, (gid_t) 0, NULL, SFF_ANYFILE);
+		if (OpMode != MD_TEST && chdir(QueueDir) < 0)
+		{
+			syserr("cannot chdir(%s)", QueueDir);
+			ExitStat = EX_CONFIG;
+		}
+	}
+
+	/* check host status directory for validity */
+	if (HostStatDir != NULL && !path_is_dir(HostStatDir, FALSE))
+	{
+		/* cannot use this value */
+		if (tTd(0, 2))
+			printf("Cannot use HostStatusDirectory = %s: %s\n",
+				HostStatDir, errstring(errno));
+		HostStatDir = NULL;
+	}
+
+# if QUEUE
+	if (queuemode && RealUid != 0 && bitset(PRIV_RESTRICTQRUN, PrivacyFlags))
+	{
+		struct stat stbuf;
+
+		/* check to see if we own the queue directory */
+		if (stat(".", &stbuf) < 0)
+			syserr("main: cannot stat %s", QueueDir);
+		if (stbuf.st_uid != RealUid)
+		{
+			/* nope, really a botch */
+			usrerr("You do not have permission to process the queue");
+			exit (EX_NOPERM);
+		}
+	}
+# endif /* QUEUE */
+
+	/* if we've had errors so far, exit now */
+	if (ExitStat != EX_OK && OpMode != MD_TEST)
+	{
+		endpwent();
+		setuid(RealUid);
+		exit(ExitStat);
+	}
+
+#if XDEBUG
+	checkfd012("before main() initmaps");
+#endif
+
+	/*
+	**  Do operation-mode-dependent initialization.
+	*/
+
+	switch (OpMode)
+	{
+	  case MD_PRINT:
+		/* print the queue */
+#if QUEUE
+		dropenvelope(CurEnv, TRUE);
+		printqueue();
+		endpwent();
+		setuid(RealUid);
+		exit(EX_OK);
+#else /* QUEUE */
+		usrerr("No queue to print");
+		finis();
+#endif /* QUEUE */
+
+	  case MD_HOSTSTAT:
+		mci_traverse_persistent(mci_print_persistent, NULL);
+		exit(EX_OK);
+	    	break;
+
+	  case MD_PURGESTAT:
+		mci_traverse_persistent(mci_purge_persistent, NULL);
+		exit(EX_OK);
+	    	break;
+
+	  case MD_INITALIAS:
+		/* initialize alias database */
+		initmaps(TRUE, CurEnv);
+		endpwent();
+		setuid(RealUid);
+		exit(ExitStat);
+
+	  case MD_SMTP:
+		nullserver = FALSE;
+		/* fall through... */
+
+	  case MD_DAEMON:
+		/* reset DSN parameters */
+		DefaultNotify = QPINGONFAILURE|QPINGONDELAY;
+		CurEnv->e_envid = NULL;
+		CurEnv->e_flags &= ~(EF_RET_PARAM|EF_NO_BODY_RETN);
+
+		/* don't open alias database -- done in srvrsmtp */
+		break;
+
+	  default:
+		/* open the alias database */
+		initmaps(FALSE, CurEnv);
+		break;
+	}
+
+	if (tTd(0, 15))
+	{
+		extern void printrules __P((void));
+
+		/* print configuration table (or at least part of it) */
+		if (tTd(0, 90))
+			printrules();
+		for (i = 0; i < MAXMAILERS; i++)
+		{
+			if (Mailer[i] != NULL)
+				printmailer(Mailer[i]);
+		}
+	}
+
+	/*
+	**  Switch to the main envelope.
+	*/
+
+	CurEnv = newenvelope(&MainEnvelope, CurEnv);
+	MainEnvelope.e_flags = BlankEnvelope.e_flags;
+
+	/*
+	**  If test mode, read addresses from stdin and process.
+	*/
+
+	if (OpMode == MD_TEST)
+	{
+		char buf[MAXLINE];
+		SIGFUNC_DECL intindebug __P((int));
+
+		if (isatty(fileno(stdin)))
+			Verbose = 2;
+
+		if (Verbose)
+		{
+			printf("ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)\n");
+			printf("Enter <ruleset> <address>\n");
+		}
+		if (setjmp(TopFrame) > 0)
+			printf("\n");
+		(void) setsignal(SIGINT, intindebug);
+		for (;;)
+		{
+			extern void testmodeline __P((char *, ENVELOPE *));
+
+			if (Verbose)
+				printf("> ");
+			(void) fflush(stdout);
+			if (fgets(buf, sizeof buf, stdin) == NULL)
+				finis();
+			p = strchr(buf, '\n');
+			if (p != NULL)
+				*p = '\0';
+			if (!Verbose)
+				printf("> %s\n", buf);
+			testmodeline(buf, CurEnv);
+		}
+	}
+
+# if QUEUE
+	/*
+	**  If collecting stuff from the queue, go start doing that.
+	*/
+
+	if (queuemode && OpMode != MD_DAEMON && QueueIntvl == 0)
+	{
+		(void) runqueue(FALSE, Verbose);
+		finis();
+	}
+# endif /* QUEUE */
+
+	/*
+	**  If a daemon, wait for a request.
+	**	getrequests will always return in a child.
+	**	If we should also be processing the queue, start
+	**		doing it in background.
+	**	We check for any errors that might have happened
+	**		during startup.
+	*/
+
+	if (OpMode == MD_DAEMON || QueueIntvl != 0)
+	{
+		char dtype[200];
+		extern void getrequests __P((ENVELOPE *));
+
+		if (!run_in_foreground && !tTd(99, 100))
+		{
+			/* put us in background */
+			i = fork();
+			if (i < 0)
+				syserr("daemon: cannot fork");
+			if (i != 0)
+				exit(0);
+
+			/* disconnect from our controlling tty */
+			disconnect(2, CurEnv);
+		}
+
+		dtype[0] = '\0';
+		if (OpMode == MD_DAEMON)
+			strcat(dtype, "+SMTP");
+		if (QueueIntvl != 0)
+		{
+			strcat(dtype, "+queueing@");
+			strcat(dtype, pintvl(QueueIntvl, TRUE));
+		}
+		if (tTd(0, 1))
+			strcat(dtype, "+debugging");
+
+		sm_syslog(LOG_INFO, NOQID,
+			"starting daemon (%s): %s", Version, dtype + 1);
+#ifdef XLA
+		xla_create_file();
+#endif
+
+# if QUEUE
+		if (queuemode)
+		{
+			(void) runqueue(TRUE, FALSE);
+			if (OpMode != MD_DAEMON)
+			{
+				for (;;)
+				{
+					pause();
+					if (DoQueueRun)
+						(void) runqueue(TRUE, FALSE);
+				}
+			}
+		}
+# endif /* QUEUE */
+		dropenvelope(CurEnv, TRUE);
+
+#if DAEMON
+		getrequests(CurEnv);
+
+		/* drop privileges */
+		(void) drop_privileges(FALSE);
+
+		/* at this point we are in a child: reset state */
+		(void) newenvelope(CurEnv, CurEnv);
+
+		/*
+		**  Get authentication data
+		*/
+
+		p = getauthinfo(fileno(InChannel));
+		define('_', p, &BlankEnvelope);
+
+		/* validate the connection */
+		HoldErrs = TRUE;
+		nullserver = !validate_connection(&RealHostAddr, RealHostName, CurEnv);
+		HoldErrs = FALSE;
+#endif /* DAEMON */
+	}
+
+# if SMTP
+	/*
+	**  If running SMTP protocol, start collecting and executing
+	**  commands.  This will never return.
+	*/
+
+	if (OpMode == MD_SMTP || OpMode == MD_DAEMON)
+	{
+		char pbuf[20];
+		extern void smtp __P((bool, ENVELOPE *));
+
+		/*
+		**  Save some macros for check_* rulesets.
+		*/
+
+		define(macid("{client_name}", NULL), RealHostName, &BlankEnvelope);
+		define(macid("{client_addr}", NULL),
+		       newstr(anynet_ntoa(&RealHostAddr)), &BlankEnvelope);
+		if (RealHostAddr.sa.sa_family == AF_INET)
+			snprintf(pbuf, sizeof pbuf, "%d", RealHostAddr.sin.sin_port);
+		else
+			snprintf(pbuf, sizeof pbuf, "0");
+		define(macid("{client_port}", NULL), newstr(pbuf), &BlankEnvelope);
+
+		smtp(nullserver, CurEnv);
+	}
+# endif /* SMTP */
+
+	clearenvelope(CurEnv, FALSE);
+	if (OpMode == MD_VERIFY)
+	{
+		CurEnv->e_sendmode = SM_VERIFY;
+		CurEnv->e_errormode = EM_PRINT;
+		PostMasterCopy = NULL;
+		HoldErrs = FALSE;
+	}
+	else
+	{
+		/* interactive -- all errors are global */
+		CurEnv->e_flags |= EF_GLOBALERRS|EF_LOGSENDER;
+	}
+
+	/*
+	**  Do basic system initialization and set the sender
+	*/
+
+	initsys(CurEnv);
+	if (warn_f_flag != '\0' && !wordinclass(RealUserName, 't'))
+		auth_warning(CurEnv, "%s set sender to %s using -%c",
+			RealUserName, from, warn_f_flag);
+	setsender(from, CurEnv, NULL, '\0', FALSE);
+	if (macvalue('s', CurEnv) == NULL)
+		define('s', RealHostName, CurEnv);
+
+	if (*av == NULL && !GrabTo)
+	{
+		CurEnv->e_flags |= EF_GLOBALERRS;
+		usrerr("Recipient names must be specified");
+
+		/* collect body for UUCP return */
+		if (OpMode != MD_VERIFY)
+			collect(InChannel, FALSE, NULL, CurEnv);
+		finis();
+	}
+
+	/*
+	**  Scan argv and deliver the message to everyone.
+	*/
+
+	sendtoargv(av, CurEnv);
+
+	/* if we have had errors sofar, arrange a meaningful exit stat */
+	if (Errors > 0 && ExitStat == EX_OK)
+		ExitStat = EX_USAGE;
+
+	/*
+	**  Read the input mail.
+	*/
+
+	CurEnv->e_to = NULL;
+	if (OpMode != MD_VERIFY || GrabTo)
+	{
+		long savedflags = CurEnv->e_flags & EF_FATALERRS;
+
+		CurEnv->e_flags |= EF_GLOBALERRS;
+		CurEnv->e_flags &= ~EF_FATALERRS;
+		collect(InChannel, FALSE, NULL, CurEnv);
+
+		/* bail out if message too large */
+		if (bitset(EF_CLRQUEUE, CurEnv->e_flags))
+		{
+			finis();
+			/*NOTREACHED*/
+			return -1;
+		}
+		CurEnv->e_flags |= savedflags;
+	}
+	errno = 0;
+
+	if (tTd(1, 1))
+		printf("From person = \"%s\"\n", CurEnv->e_from.q_paddr);
+
+	/*
+	**  Actually send everything.
+	**	If verifying, just ack.
+	*/
+
+	CurEnv->e_from.q_flags |= QDONTSEND;
+	if (tTd(1, 5))
+	{
+		printf("main: QDONTSEND ");
+		printaddr(&CurEnv->e_from, FALSE);
+	}
+	CurEnv->e_to = NULL;
+	CurrentLA = getla();
+	sendall(CurEnv, SM_DEFAULT);
+
+	/*
+	**  All done.
+	**	Don't send return error message if in VERIFY mode.
+	*/
+
+	finis();
+	/*NOTREACHED*/
+	return -1;
+}
+
+
+SIGFUNC_DECL
+intindebug(sig)
+	int sig;
+{
+	longjmp(TopFrame, 1);
+	return SIGFUNC_RETURN;
+}
+
+
+/*
+**  FINIS -- Clean up and exit.
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		never
+**
+**	Side Effects:
+**		exits sendmail
+*/
+
+void
+finis()
+{
+	if (tTd(2, 1))
+	{
+		extern void printenvflags();
+
+		printf("\n====finis: stat %d e_id=%s e_flags=",
+			ExitStat,
+			CurEnv->e_id == NULL ? "NOQUEUE" : CurEnv->e_id);
+		printenvflags(CurEnv);
+	}
+	if (tTd(2, 9))
+		printopenfds(FALSE);
+
+	/* if we fail in finis(), just exit */
+	if (setjmp(TopFrame) != 0)
+	{
+		/* failed -- just give it up */
+		goto forceexit;
+	}
+
+	/* clean up temp files */
+	CurEnv->e_to = NULL;
+	if (CurEnv->e_id != NULL)
+		dropenvelope(CurEnv, TRUE);
+
+	/* flush any cached connections */
+	mci_flush(TRUE, NULL);
+
+# ifdef XLA
+	/* clean up extended load average stuff */
+	xla_all_end();
+# endif
+
+	/* and exit */
+  forceexit:
+	if (LogLevel > 78)
+		sm_syslog(LOG_DEBUG, CurEnv->e_id,
+			"finis, pid=%d",
+			getpid());
+	if (ExitStat == EX_TEMPFAIL || CurEnv->e_errormode == EM_BERKNET)
+		ExitStat = EX_OK;
+
+	/* reset uid for process accounting */
+	endpwent();
+	setuid(RealUid);
+
+	exit(ExitStat);
+}
+/*
+**  INTSIG -- clean up on interrupt
+**
+**	This just arranges to exit.  It pessimises in that it
+**	may resend a message.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Unlocks the current job.
+*/
+
+SIGFUNC_DECL
+intsig(sig)
+	int sig;
+{
+	if (LogLevel > 79)
+		sm_syslog(LOG_DEBUG, CurEnv->e_id, "interrupt");
+	FileName = NULL;
+	unlockqueue(CurEnv);
+#ifdef XLA
+	xla_all_end();
+#endif
+
+	/* reset uid for process accounting */
+	endpwent();
+	setuid(RealUid);
+
+	exit(EX_OK);
+}
+/*
+**  INITMACROS -- initialize the macro system
+**
+**	This just involves defining some macros that are actually
+**	used internally as metasymbols to be themselves.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		initializes several macros to be themselves.
+*/
+
+struct metamac	MetaMacros[] =
+{
+	/* LHS pattern matching characters */
+	{ '*', MATCHZANY },	{ '+', MATCHANY },	{ '-', MATCHONE },
+	{ '=', MATCHCLASS },	{ '~', MATCHNCLASS },
+
+	/* these are RHS metasymbols */
+	{ '#', CANONNET },	{ '@', CANONHOST },	{ ':', CANONUSER },
+	{ '>', CALLSUBR },
+
+	/* the conditional operations */
+	{ '?', CONDIF },	{ '|', CONDELSE },	{ '.', CONDFI },
+
+	/* the hostname lookup characters */
+	{ '[', HOSTBEGIN },	{ ']', HOSTEND },
+	{ '(', LOOKUPBEGIN },	{ ')', LOOKUPEND },
+
+	/* miscellaneous control characters */
+	{ '&', MACRODEXPAND },
+
+	{ '\0' }
+};
+
+#define MACBINDING(name, mid) \
+		stab(name, ST_MACRO, ST_ENTER)->s_macro = mid; \
+		MacroName[mid] = name;
+
+void
+initmacros(e)
+	register ENVELOPE *e;
+{
+	register struct metamac *m;
+	register int c;
+	char buf[5];
+	extern char *MacroName[256];
+
+	for (m = MetaMacros; m->metaname != '\0'; m++)
+	{
+		buf[0] = m->metaval;
+		buf[1] = '\0';
+		define(m->metaname, newstr(buf), e);
+	}
+	buf[0] = MATCHREPL;
+	buf[2] = '\0';
+	for (c = '0'; c <= '9'; c++)
+	{
+		buf[1] = c;
+		define(c, newstr(buf), e);
+	}
+
+	/* set defaults for some macros sendmail will use later */
+	define('n', "MAILER-DAEMON", e);
+
+	/* set up external names for some internal macros */
+	MACBINDING("opMode", MID_OPMODE);
+	/*XXX should probably add equivalents for all short macros here XXX*/
+}
+/*
+**  DISCONNECT -- remove our connection with any foreground process
+**
+**	Parameters:
+**		droplev -- how "deeply" we should drop the line.
+**			0 -- ignore signals, mail back errors, make sure
+**			     output goes to stdout.
+**			1 -- also, make stdout go to transcript.
+**			2 -- also, disconnect from controlling terminal
+**			     (only for daemon mode).
+**		e -- the current envelope.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		Trys to insure that we are immune to vagaries of
+**		the controlling tty.
+*/
+
+void
+disconnect(droplev, e)
+	int droplev;
+	register ENVELOPE *e;
+{
+	int fd;
+
+	if (tTd(52, 1))
+		printf("disconnect: In %d Out %d, e=%lx\n",
+			fileno(InChannel), fileno(OutChannel), (u_long) e);
+	if (tTd(52, 100))
+	{
+		printf("don't\n");
+		return;
+	}
+	if (LogLevel > 93)
+		sm_syslog(LOG_DEBUG, e->e_id,
+			"disconnect level %d",
+			droplev);
+
+	/* be sure we don't get nasty signals */
+	(void) setsignal(SIGINT, SIG_IGN);
+	(void) setsignal(SIGQUIT, SIG_IGN);
+
+	/* we can't communicate with our caller, so.... */
+	HoldErrs = TRUE;
+	CurEnv->e_errormode = EM_MAIL;
+	Verbose = 0;
+	DisConnected = TRUE;
+
+	/* all input from /dev/null */
+	if (InChannel != stdin)
+	{
+		(void) fclose(InChannel);
+		InChannel = stdin;
+	}
+	(void) freopen("/dev/null", "r", stdin);
+
+	/* output to the transcript */
+	if (OutChannel != stdout)
+	{
+		(void) fclose(OutChannel);
+		OutChannel = stdout;
+	}
+	if (droplev > 0)
+	{
+		if (e->e_xfp == NULL)
+			fd = open("/dev/null", O_WRONLY, 0666);
+		else
+			fd = fileno(e->e_xfp);
+		(void) fflush(stdout);
+		dup2(fd, STDOUT_FILENO);
+		dup2(fd, STDERR_FILENO);
+		if (e->e_xfp == NULL)
+			close(fd);
+	}
+
+	/* drop our controlling TTY completely if possible */
+	if (droplev > 1)
+	{
+		(void) setsid();
+		errno = 0;
+	}
+
+#if XDEBUG
+	checkfd012("disconnect");
+#endif
+
+	if (LogLevel > 71)
+		sm_syslog(LOG_DEBUG, e->e_id,
+			"in background, pid=%d",
+			getpid());
+
+	errno = 0;
+}
+
+static void
+obsolete(argv)
+	char *argv[];
+{
+	register char *ap;
+	register char *op;
+
+	while ((ap = *++argv) != NULL)
+	{
+		/* Return if "--" or not an option of any form. */
+		if (ap[0] != '-' || ap[1] == '-')
+			return;
+
+		/* skip over options that do have a value */
+		op = strchr(OPTIONS, ap[1]);
+		if (op != NULL && *++op == ':' && ap[2] == '\0' &&
+		    ap[1] != 'd' &&
+#if defined(sony_news)
+		    ap[1] != 'E' && ap[1] != 'J' &&
+#endif
+		    argv[1] != NULL && argv[1][0] != '-')
+		{
+			argv++;
+			continue;
+		}
+
+		/* If -C doesn't have an argument, use sendmail.cf. */
+#define	__DEFPATH	"sendmail.cf"
+		if (ap[1] == 'C' && ap[2] == '\0')
+		{
+			*argv = xalloc(sizeof(__DEFPATH) + 2);
+			argv[0][0] = '-';
+			argv[0][1] = 'C';
+			(void)strcpy(&argv[0][2], __DEFPATH);
+		}
+
+		/* If -q doesn't have an argument, run it once. */
+		if (ap[1] == 'q' && ap[2] == '\0')
+			*argv = "-q0";
+
+		/* if -d doesn't have an argument, use 0-99.1 */
+		if (ap[1] == 'd' && ap[2] == '\0')
+			*argv = "-d0-99.1";
+
+# if defined(sony_news)
+		/* if -E doesn't have an argument, use -EC */
+		if (ap[1] == 'E' && ap[2] == '\0')
+			*argv = "-EC";
+
+		/* if -J doesn't have an argument, use -JJ */
+		if (ap[1] == 'J' && ap[2] == '\0')
+			*argv = "-JJ";
+# endif
+	}
+}
+/*
+**  AUTH_WARNING -- specify authorization warning
+**
+**	Parameters:
+**		e -- the current envelope.
+**		msg -- the text of the message.
+**		args -- arguments to the message.
+**
+**	Returns:
+**		none.
+*/
+
+void
+#ifdef __STDC__
+auth_warning(register ENVELOPE *e, const char *msg, ...)
+#else
+auth_warning(e, msg, va_alist)
+	register ENVELOPE *e;
+	const char *msg;
+	va_dcl
+#endif
+{
+	char buf[MAXLINE];
+	VA_LOCAL_DECL
+
+	if (bitset(PRIV_AUTHWARNINGS, PrivacyFlags))
+	{
+		register char *p;
+		static char hostbuf[48];
+		extern struct hostent *myhostname();
+
+		if (hostbuf[0] == '\0')
+			(void) myhostname(hostbuf, sizeof hostbuf);
+
+		(void) snprintf(buf, sizeof buf, "%s: ", hostbuf);
+		p = &buf[strlen(buf)];
+		VA_START(msg);
+		vsnprintf(p, SPACELEFT(buf, p), msg, ap);
+		VA_END;
+		addheader("X-Authentication-Warning", buf, &e->e_header);
+		if (LogLevel > 3)
+			sm_syslog(LOG_INFO, e->e_id,
+				"Authentication-Warning: %.400s",
+				buf);
+	}
+}
+/*
+**  GETEXTENV -- get from external environment
+**
+**	Parameters:
+**		envar -- the name of the variable to retrieve
+**
+**	Returns:
+**		The value, if any.
+*/
+
+char *
+getextenv(envar)
+	const char *envar;
+{
+	char **envp;
+	int l;
+
+	l = strlen(envar);
+	for (envp = ExternalEnviron; *envp != NULL; envp++)
+	{
+		if (strncmp(*envp, envar, l) == 0 && (*envp)[l] == '=')
+			return &(*envp)[l + 1];
+	}
+	return NULL;
+}
+/*
+**  SETUSERENV -- set an environment in the propogated environment
+**
+**	Parameters:
+**		envar -- the name of the environment variable.
+**		value -- the value to which it should be set.  If
+**			null, this is extracted from the incoming
+**			environment.  If that is not set, the call
+**			to setuserenv is ignored.
+**
+**	Returns:
+**		none.
+*/
+
+void
+setuserenv(envar, value)
+	const char *envar;
+	const char *value;
+{
+	int i;
+	char **evp = UserEnviron;
+	char *p;
+
+	if (value == NULL)
+	{
+		value = getextenv(envar);
+		if (value == NULL)
+			return;
+	}
+
+	i = strlen(envar);
+	p = (char *) xalloc(strlen(value) + i + 2);
+	strcpy(p, envar);
+	p[i++] = '=';
+	strcpy(&p[i], value);
+
+	while (*evp != NULL && strncmp(*evp, p, i) != 0)
+		evp++;
+	if (*evp != NULL)
+	{
+		*evp++ = p;
+	}
+	else if (evp < &UserEnviron[MAXUSERENVIRON])
+	{
+		*evp++ = p;
+		*evp = NULL;
+	}
+
+	/* make sure it is in our environment as well */
+	if (putenv(p) < 0)
+		syserr("setuserenv: putenv(%s) failed", p);
+}
+/*
+**  DUMPSTATE -- dump state
+**
+**	For debugging.
+*/
+
+void
+dumpstate(when)
+	char *when;
+{
+	register char *j = macvalue('j', CurEnv);
+	int rs;
+
+	sm_syslog(LOG_DEBUG, CurEnv->e_id,
+		"--- dumping state on %s: $j = %s ---",
+		when,
+		j == NULL ? "<NULL>" : j);
+	if (j != NULL)
+	{
+		if (!wordinclass(j, 'w'))
+			sm_syslog(LOG_DEBUG, CurEnv->e_id,
+				"*** $j not in $=w ***");
+	}
+	sm_syslog(LOG_DEBUG, CurEnv->e_id, "CurChildren = %d", CurChildren);
+	sm_syslog(LOG_DEBUG, CurEnv->e_id, "--- open file descriptors: ---");
+	printopenfds(TRUE);
+	sm_syslog(LOG_DEBUG, CurEnv->e_id, "--- connection cache: ---");
+	mci_dump_all(TRUE);
+	rs = strtorwset("debug_dumpstate", NULL, ST_FIND);
+	if (rs > 0)
+	{
+		int stat;
+		register char **pvp;
+		char *pv[MAXATOM + 1];
+
+		pv[0] = NULL;
+		stat = rewrite(pv, rs, 0, CurEnv);
+		sm_syslog(LOG_DEBUG, CurEnv->e_id,
+		       "--- ruleset debug_dumpstate returns stat %d, pv: ---",
+		       stat);
+		for (pvp = pv; *pvp != NULL; pvp++)
+			sm_syslog(LOG_DEBUG, CurEnv->e_id, "%s", *pvp);
+	}
+	sm_syslog(LOG_DEBUG, CurEnv->e_id, "--- end of state dump ---");
+}
+
+
+SIGFUNC_DECL
+sigusr1(sig)
+	int sig;
+{
+	dumpstate("user signal");
+	return SIGFUNC_RETURN;
+}
+
+
+SIGFUNC_DECL
+sighup(sig)
+	int sig;
+{
+	if (SaveArgv[0][0] != '/')
+	{
+		if (LogLevel > 3)
+			sm_syslog(LOG_INFO, NOQID, "could not restart: need full path");
+		exit(EX_OSFILE);
+	}
+	if (LogLevel > 3)
+		sm_syslog(LOG_INFO, NOQID, "restarting %s on signal", SaveArgv[0]);
+	alarm(0);
+	releasesignal(SIGHUP);
+	if (drop_privileges(TRUE) != EX_OK)
+	{
+		if (LogLevel > 0)
+			sm_syslog(LOG_ALERT, NOQID, "could not set[ug]id(%d, %d): %m",
+				RunAsUid, RunAsGid);
+		exit(EX_OSERR);
+	}
+	execve(SaveArgv[0], (ARGV_T) SaveArgv, (ARGV_T) ExternalEnviron);
+	if (LogLevel > 0)
+		sm_syslog(LOG_ALERT, NOQID, "could not exec %s: %m", SaveArgv[0]);
+	exit(EX_OSFILE);
+}
+/*
+**  DROP_PRIVILEGES -- reduce privileges to those of the RunAsUser option
+**
+**	Parameters:
+**		to_real_uid -- if set, drop to the real uid instead
+**			of the RunAsUser.
+**
+**	Returns:
+**		EX_OSERR if the setuid failed.
+**		EX_OK otherwise.
+*/
+
+int
+drop_privileges(to_real_uid)
+	bool to_real_uid;
+{
+	int rval = EX_OK;
+#ifdef NGROUPS_MAX
+	GIDSET_T emptygidset[NGROUPS_MAX];
+#endif
+
+	if (tTd(47, 1))
+		printf("drop_privileges(%d): Real[UG]id=%d:%d, RunAs[UG]id=%d:%d\n",
+			to_real_uid, RealUid, RealGid, RunAsUid, RunAsGid);
+
+	if (to_real_uid)
+	{
+		RunAsUserName = RealUserName;
+		RunAsUid = RealUid;
+		RunAsGid = RealGid;
+	}
+
+	/* make sure no one can grab open descriptors for secret files */
+	endpwent();
+
+#ifdef NGROUPS_MAX
+	/* reset group permissions; these can be set later */
+	emptygidset[0] = (to_real_uid || RunAsGid != 0) ? RunAsGid : getegid();
+	(void) setgroups(1, emptygidset);
+#endif
+
+	/* reset primary group and user id */
+	if ((to_real_uid || RunAsGid != 0) && setgid(RunAsGid) < 0)
+		rval = EX_OSERR;
+	if ((to_real_uid || RunAsUid != 0) && setuid(RunAsUid) < 0)
+		rval = EX_OSERR;
+	return rval;
+}
+/*
+**  FILL_FD -- make sure a file descriptor has been properly allocated
+**
+**	Used to make sure that stdin/out/err are allocated on startup
+**
+**	Parameters:
+**		fd -- the file descriptor to be filled.
+**		where -- a string used for logging.  If NULL, this is
+**			being called on startup, and logging should
+**			not be done.
+**
+**	Returns:
+**		none
+*/
+
+void
+fill_fd(fd, where)
+	int fd;
+	char *where;
+{
+	int i;
+	struct stat stbuf;
+
+	if (fstat(fd, &stbuf) >= 0 || errno != EBADF)
+		return;
+
+	if (where != NULL)
+		syserr("fill_fd: %s: fd %d not open", where, fd);
+	else
+		MissingFds |= 1 << fd;
+	i = open("/dev/null", fd == 0 ? O_RDONLY : O_WRONLY, 0666);
+	if (i < 0)
+	{
+		syserr("!fill_fd: %s: cannot open /dev/null",
+			where == NULL ? "startup" : where);
+	}
+	if (fd != i)
+	{
+		(void) dup2(i, fd);
+		(void) close(i);
+	}
+}
+/*
+**  TESTMODELINE -- process a test mode input line
+**
+**	Parameters:
+**		line -- the input line.
+**		e -- the current environment.
+**	Syntax:
+**		#  a comment
+**		.X process X as a configuration line
+**		=X dump a configuration item (such as mailers)
+**		$X dump a macro or class
+**		/X try an activity
+**		X  normal process through rule set X
+*/
+
+void
+testmodeline(line, e)
+	char *line;
+	ENVELOPE *e;
+{
+	register char *p;
+	char *q;
+	auto char *delimptr;
+	int mid;
+	int i, rs;
+	STAB *map;
+	char **s;
+	struct rewrite *rw;
+	ADDRESS a;
+	static int tryflags = RF_COPYNONE;
+	char exbuf[MAXLINE];
+	extern bool invalidaddr __P((char *, char *));
+	extern char *crackaddr __P((char *));
+	extern void dump_class __P((STAB *, int));
+	extern void translate_dollars __P((char *));
+	extern void help __P((char *));
+
+	switch (line[0])
+	{
+	  case '#':
+	  case 0:
+		return;
+
+	  case '?':
+		help("-bt");
+		return;
+
+	  case '.':		/* config-style settings */
+		switch (line[1])
+		{
+		  case 'D':
+			mid = macid(&line[2], &delimptr);
+			if (mid == '\0')
+				return;
+			translate_dollars(delimptr);
+			define(mid, newstr(delimptr), e);
+			break;
+
+		  case 'C':
+			if (line[2] == '\0')	/* not to call syserr() */
+				return;
+
+			mid = macid(&line[2], &delimptr);
+			if (mid == '\0')
+				return;
+			translate_dollars(delimptr);
+			expand(delimptr, exbuf, sizeof exbuf, e);
+			p = exbuf;
+			while (*p != '\0')
+			{
+				register char *wd;
+				char delim;
+
+				while (*p != '\0' && isascii(*p) && isspace(*p))
+					p++;
+				wd = p;
+				while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+					p++;
+				delim = *p;
+				*p = '\0';
+				if (wd[0] != '\0')
+					setclass(mid, wd);
+				*p = delim;
+			}
+			break;
+
+		  case '\0':
+			printf("Usage: .[DC]macro value(s)\n");
+			break;
+
+		  default:
+			printf("Unknown \".\" command %s\n", line);
+			break;
+		}
+		return;
+
+	  case '=':		/* config-style settings */
+		switch (line[1])
+		{
+		  case 'S':		/* dump rule set */
+			rs = strtorwset(&line[2], NULL, ST_FIND);
+			if (rs < 0)
+			{
+				printf("Undefined ruleset %s\n", &line[2]);
+				return;
+			}
+			rw = RewriteRules[rs];
+			if (rw == NULL)
+				return;
+			do
+			{
+				putchar('R');
+				s = rw->r_lhs;
+				while (*s != NULL)
+				{
+					xputs(*s++);
+					putchar(' ');
+				}
+				putchar('\t');
+				putchar('\t');
+				s = rw->r_rhs;
+				while (*s != NULL)
+				{
+					xputs(*s++);
+					putchar(' ');
+				}
+				putchar('\n');
+			} while ((rw = rw->r_next) != NULL);
+			break;
+
+		  case 'M':
+			for (i = 0; i < MAXMAILERS; i++)
+			{
+				if (Mailer[i] != NULL)
+					printmailer(Mailer[i]);
+			}
+			break;
+
+		  case '\0':
+			printf("Usage: =Sruleset or =M\n");
+			break;
+
+		  default:
+			printf("Unknown \"=\" command %s\n", line);
+			break;
+		}
+		return;
+
+	  case '-':		/* set command-line-like opts */
+		switch (line[1])
+		{
+		  case 'd':
+			tTflag(&line[2]);
+			break;
+
+		  case '\0':
+			printf("Usage: -d{debug arguments}\n");
+			break;
+
+		  default:
+			printf("Unknown \"-\" command %s\n", line);
+			break;
+		}
+		return;
+
+	  case '$':
+		if (line[1] == '=')
+		{
+			mid = macid(&line[2], NULL);
+			if (mid != '\0')
+				stabapply(dump_class, mid);
+			return;
+		}
+		mid = macid(&line[1], NULL);
+		if (mid == '\0')
+			return;
+		p = macvalue(mid, e);
+		if (p == NULL)
+			printf("Undefined\n");
+		else
+		{
+			xputs(p);
+			printf("\n");
+		}
+		return;
+
+	  case '/':		/* miscellaneous commands */
+		p = &line[strlen(line)];
+		while (--p >= line && isascii(*p) && isspace(*p))
+			*p = '\0';
+		p = strpbrk(line, " \t");
+		if (p != NULL)
+		{
+			while (isascii(*p) && isspace(*p))
+				*p++ = '\0';
+		}
+		else
+			p = "";
+		if (line[1] == '\0')
+		{
+			printf("Usage: /[canon|map|mx|parse|try|tryflags]\n");
+			return;
+		}
+		if (strcasecmp(&line[1], "mx") == 0)
+		{
+#if NAMED_BIND
+			/* look up MX records */
+			int nmx;
+			auto int rcode;
+			char *mxhosts[MAXMXHOSTS + 1];
+
+			if (*p == '\0')
+			{
+				printf("Usage: /mx address\n");
+				return;
+			}
+			nmx = getmxrr(p, mxhosts, FALSE, &rcode);
+			printf("getmxrr(%s) returns %d value(s):\n", p, nmx);
+			for (i = 0; i < nmx; i++)
+				printf("\t%s\n", mxhosts[i]);
+#else
+			printf("No MX code compiled in\n");
+#endif
+		}
+		else if (strcasecmp(&line[1], "canon") == 0)
+		{
+			char host[MAXHOSTNAMELEN];
+
+			if (*p == '\0')
+			{
+				printf("Usage: /canon address\n");
+				return;
+			}
+			else if (strlen(p) >= sizeof host)
+			{
+				printf("Name too long\n");
+				return;
+			}
+			strcpy(host, p);
+			(void) getcanonname(host, sizeof(host), HasWildcardMX);
+			printf("getcanonname(%s) returns %s\n", p, host);
+		}
+		else if (strcasecmp(&line[1], "map") == 0)
+		{
+			auto int rcode = EX_OK;
+
+			if (*p == '\0')
+			{
+				printf("Usage: /map mapname key\n");
+				return;
+			}
+			for (q = p; *q != '\0' && !isspace(*q); q++)
+				continue;
+			if (*q == '\0')
+			{
+				printf("No key specified\n");
+				return;
+			}
+			*q++ = '\0';
+			map = stab(p, ST_MAP, ST_FIND);
+			if (map == NULL)
+			{
+				printf("Map named \"%s\" not found\n", p);
+				return;
+			}
+			if (!bitset(MF_OPEN, map->s_map.map_mflags))
+			{
+				printf("Map named \"%s\" not open\n", p);
+				return;
+			}
+			printf("map_lookup: %s (%s) ", p, q);
+			p = (*map->s_map.map_class->map_lookup)
+					(&map->s_map, q, NULL, &rcode);
+			if (p == NULL)
+				printf("no match (%d)\n", rcode);
+			else
+				printf("returns %s (%d)\n", p, rcode);
+		}
+		else if (strcasecmp(&line[1], "try") == 0)
+		{
+			MAILER *m;
+			STAB *s;
+			auto int rcode = EX_OK;
+
+			q = strpbrk(p, " \t");
+			if (q != NULL)
+			{
+				while (isascii(*q) && isspace(*q))
+					*q++ = '\0';
+			}
+			if (q == NULL || *q == '\0')
+			{
+				printf("Usage: /try mailer address\n");
+				return;
+			}
+			s = stab(p, ST_MAILER, ST_FIND);
+			if (s == NULL)
+			{
+				printf("Unknown mailer %s\n", p);
+				return;
+			}
+			m = s->s_mailer;
+			printf("Trying %s %s address %s for mailer %s\n",
+				bitset(RF_HEADERADDR, tryflags) ? "header" : "envelope",
+				bitset(RF_SENDERADDR, tryflags) ? "sender" : "recipient",
+				q, p);
+			p = remotename(q, m, tryflags, &rcode, CurEnv);
+			printf("Rcode = %d, addr = %s\n",
+				rcode, p == NULL ? "<NULL>" : p);
+			e->e_to = NULL;
+		}
+		else if (strcasecmp(&line[1], "tryflags") == 0)
+		{
+			if (*p == '\0')
+			{
+				printf("Usage: /tryflags [Hh|Ee][Ss|Rr]\n");
+				return;
+			}
+			for (; *p != '\0'; p++)
+			{
+				switch (*p)
+				{
+				  case 'H':
+				  case 'h':
+					tryflags |= RF_HEADERADDR;
+					break;
+
+				  case 'E':
+				  case 'e':
+					tryflags &= ~RF_HEADERADDR;
+					break;
+
+				  case 'S':
+				  case 's':
+					tryflags |= RF_SENDERADDR;
+					break;
+
+				  case 'R':
+				  case 'r':
+					tryflags &= ~RF_SENDERADDR;
+					break;
+				}
+			}
+		}
+		else if (strcasecmp(&line[1], "parse") == 0)
+		{
+			if (*p == '\0')
+			{
+				printf("Usage: /parse address\n");
+				return;
+			}
+			q = crackaddr(p);
+			printf("Cracked address = ");
+			xputs(q);
+			printf("\nParsing %s %s address\n",
+				bitset(RF_HEADERADDR, tryflags) ? "header" : "envelope",
+				bitset(RF_SENDERADDR, tryflags) ? "sender" : "recipient");
+			if (parseaddr(p, &a, tryflags, '\0', NULL, e) == NULL)
+				printf("Cannot parse\n");
+			else if (a.q_host != NULL && a.q_host[0] != '\0')
+				printf("mailer %s, host %s, user %s\n",
+					a.q_mailer->m_name, a.q_host, a.q_user);
+			else
+				printf("mailer %s, user %s\n",
+					a.q_mailer->m_name, a.q_user);
+			e->e_to = NULL;
+		}
+		else
+		{
+			printf("Unknown \"/\" command %s\n", line);
+		}
+		return;
+	}
+
+	for (p = line; isascii(*p) && isspace(*p); p++)
+		continue;
+	q = p;
+	while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+		p++;
+	if (*p == '\0')
+	{
+		printf("No address!\n");
+		return;
+	}
+	*p = '\0';
+	if (invalidaddr(p + 1, NULL))
+		return;
+	do
+	{
+		register char **pvp;
+		char pvpbuf[PSBUFSIZE];
+
+		pvp = prescan(++p, ',', pvpbuf, sizeof pvpbuf,
+			      &delimptr, NULL);
+		if (pvp == NULL)
+			continue;
+		p = q;
+		while (*p != '\0')
+		{
+			int stat;
+			int rs = strtorwset(p, NULL, ST_FIND);
+
+			if (rs < 0)
+			{
+				printf("Undefined ruleset %s\n", p);
+				break;
+			}
+			stat = rewrite(pvp, rs, 0, e);
+			if (stat != EX_OK)
+				printf("== Ruleset %s (%d) status %d\n",
+					p, rs, stat);
+			while (*p != '\0' && *p++ != ',')
+				continue;
+		}
+	} while (*(p = delimptr) != '\0');
+}
+
+
+void
+dump_class(s, id)
+	register STAB *s;
+	int id;
+{
+	if (s->s_type != ST_CLASS)
+		return;
+	if (bitnset(id & 0xff, s->s_class))
+		printf("%s\n", s->s_name);
+}
diff --git a/src/makesendmail b/src/makesendmail
new file mode 100755
index 0000000..a28e2f4
--- /dev/null
+++ b/src/makesendmail
@@ -0,0 +1,331 @@
+#!/bin/sh
+
+# Copyright (c) 1993, 1996-1997 Eric P. Allman
+# Copyright (c) 1993 The Regents of the University of California.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#       @(#)makesendmail	8.45 (Berkeley) 4/12/97
+#
+
+#
+#  A quick-and-dirty script to compile sendmail in the presence of
+#  multiple architectures and Makefiles.
+#
+
+if [ "x${1-""}" = "x-m" ]
+then
+	# show Makefile name only
+	mflag=1
+else
+	mflag=""
+fi
+
+#
+#  Do heuristic guesses !ONLY! for machines that do not have uname
+#
+if [ -d /NextApps -a ! -f /bin/uname -a ! -f /usr/bin/uname ]
+then
+	# probably a NeXT box
+	arch=`hostinfo | sed -n 's/.*Processor type: \([^ ]*\).*/\1/p'`
+	os=NeXT
+	rel=`hostinfo | sed -n 's/.*NeXT Mach \([0-9\.]*\).*/\1/p'`
+elif [ -f /usr/sony/bin/machine -a -f /etc/osversion ]
+then
+	# probably a Sony NEWS 4.x
+	os=NEWS-OS
+	rel=`awk '{ print $3}' /etc/osversion`
+	arch=`/usr/sony/bin/machine`
+elif [ -d /usr/omron -a -f /bin/luna ]
+then
+	# probably a Omron LUNA
+	os=LUNA
+	if [ -f /bin/luna1 ] && /bin/luna1
+	then
+		rel=unios-b
+		arch=luna1
+	elif [ -f /bin/luna2 ] && /bin/luna2
+	then
+		rel=Mach
+		arch=luna2
+	elif [ -f /bin/luna88k ] && /bin/luna88k
+	then
+		rel=Mach
+		arch=luna88k
+	fi
+fi
+
+if [ ! "$arch" -a ! "$os" -a ! "$rel" ]
+then
+	arch=`uname -m | sed -e 's/ //g'`
+	os=`uname -s | sed -e 's/\//-/g' -e 's/ //g'`
+	rel=`uname -r | sed -e 's/(/-/g' -e 's/)//g'`
+fi
+
+#
+#  Tweak the values we have already got.  PLEASE LIMIT THESE to
+#  tweaks that are absolutely necessary because your system uname
+#  routine doesn't return something sufficiently unique.  Don't do
+#  it just because you don't like the name that is returned.  You
+#  can combine the architecture name with the os name to create a
+#  unique Makefile name.
+#
+
+# tweak machine architecture
+case $arch
+in
+  sun4*)	arch=sun4;;
+
+  9000/*)	arch=`echo $arch | sed -e 's/9000.//' -e 's/..$/xx/'`;;
+
+  DS/907000)	arch=ds90;;
+esac
+
+# tweak operating system type and release
+node=`uname -n | sed -e 's/\//-/g' -e 's/ //g'`
+if [ "$os" = "$node" -a "$arch" = "i386" -a "$rel" = 3.2 -a "`uname -v`" = 2 ]
+then
+	# old versions of SCO UNIX set uname -s the same as uname -n
+	os=SCO_SV
+fi
+if [ "$os" = "$node" -a "$rel" = 4.0 -a "$arch" = "3360,3430-R" ]
+then
+	# AT&T/NCR Machines also set uname -s == uname -n
+	if [ -d /usr/sadm/sysadm/add-ons/WIN-TCP ]
+	then
+		os=NCR.MP-RAS.2.x
+	else
+		os=NCR.MP-RAS.3.x
+	fi
+fi
+
+case $os
+in
+  DYNIX-ptx)	os=PTX;;
+  Paragon*)	os=Paragon;;
+  HP-UX)	rel=`echo $rel | sed -e 's/^[^.]*\.0*//'`;;
+  AIX)		rel=`uname -v`
+		if [ "$rel" = "2" ]
+		then
+			arch=""
+		fi;;
+  BSD-386)	os=BSD-OS;;
+  SCO_SV)	os=SCO; rel=`uname -X | sed -n 's/Release = 3.2v//p'`;;
+  UNIX_System_V) if [ "$arch" = "ds90" ]
+		then
+			os="UXPDS"
+			rel=`uname -v | sed -e 's/\(V.*\)L.*/\1/'`
+		fi;;
+  SINIX-?)	os=SINIX;;
+esac
+
+# get "base part" of operating system release
+rroot=`echo $rel | sed -e 's/\.[^.]*$//'`
+rbase=`echo $rel | sed -e 's/\..*//'`
+if [ "$rroot" = "$rbase" ]
+then
+	rroot=$rel
+fi
+
+# heuristic tweaks to clean up names -- PLEASE LIMIT THESE!
+if [ "$os" = "unix" ]
+then
+	# might be Altos System V
+	case $rel
+	in
+	  5.3*)		os=Altos;;
+	esac
+elif [ -r /unix -a -r /usr/lib/libseq.a -a -r /lib/cpp ]
+then
+	# might be a DYNIX/ptx 2.x system, which has a broken uname
+	if strings /lib/cpp | grep _SEQUENT_ > /dev/null
+	then
+		os=PTX
+	fi
+elif [ -d /usr/nec ]
+then
+	# NEC machine -- what is it running?
+	if [ "$os" = "UNIX_System_V" ]
+	then
+		os=EWS-UX_V
+	elif [ "$os" = "UNIX_SV" ]
+	then
+		os=UX4800
+	fi
+elif [ "$arch" = "mips" ]
+then
+	case $rel
+	in
+	  4_*)
+		if [ `uname -v` = "UMIPS" ]
+		then
+			os=RISCos
+		fi;;
+	esac
+fi
+
+# see if there is a "user suffix" specified
+if [ "${SENDMAIL_SUFFIX-}x" = "x" ]
+then
+	sfx=""
+else
+	sfx=".${SENDMAIL_SUFFIX}"
+fi
+
+echo "Configuration: os=$os, rel=$rel, rbase=$rbase, rroot=$rroot, arch=$arch, sfx=$sfx"
+
+# now try to find a reasonable object directory
+if [ -r obj.$os.$rel.$arch$sfx ]; then
+	obj=obj.$os.$rel.$arch$sfx
+elif [ -r obj.$os.$rroot.$arch$sfx ]; then
+	obj=obj.$os.$rroot.$arch$sfx
+elif [ -r obj.$os.$rbase.x.$arch$sfx ]; then
+	obj=obj.$os.$rbase.x.$arch$sfx
+elif [ -r obj.$os.$rel$sfx ]; then
+	obj=obj.$os.$rel$sfx
+elif [ -r obj.$os.$rbase.x$sfx ]; then
+	obj=obj.$os.$rbase.x$sfx
+elif [ -r obj.$os.$arch$sfx ]; then
+	obj=obj.$os.$arch$sfx
+elif [ -r obj.$rel.$arch$sfx ]; then
+	obj=obj.$rel.$arch$sfx
+elif [ -r obj.$rbase.x.$arch$sfx ]; then
+	obj=obj.$rbase.x.$arch$sfx
+elif [ -r obj.$os$sfx ]; then
+	obj=obj.$os$sfx
+elif [ -r obj.$arch$sfx ]; then
+	obj=obj.$arch$sfx
+elif [ -r obj.$rel$sfx ]; then
+	obj=obj.$rel$sfx
+elif [ -r obj$sfx ]; then
+	obj=obj$sfx
+else
+	# no existing obj directory -- try to create one if Makefile found
+	obj=obj.$os.$rel.$arch$sfx
+	if [ -r Makefiles/Makefile.$os.$rel.$arch$sfx ]; then
+		makefile=Makefile.$os.$rel.$arch$sfx
+	elif [ -r Makefiles/Makefile.$os.$rel.$arch ]; then
+		makefile=Makefile.$os.$rel.$arch
+	elif [ -r Makefiles/Makefile.$os.$rroot.$arch$sfx ]; then
+		makefile=Makefile.$os.$rroot.$arch$sfx
+	elif [ -r Makefiles/Makefile.$os.$rroot.$arch ]; then
+		makefile=Makefile.$os.$rroot.$arch
+	elif [ -r Makefiles/Makefile.$os.$rbase.x.$arch$sfx ]; then
+		makefile=Makefile.$os.$rbase.x.$arch$sfx
+	elif [ -r Makefiles/Makefile.$os.$rbase.x.$arch ]; then
+		makefile=Makefile.$os.$rbase.x.$arch
+	elif [ -r Makefiles/Makefile.$os.$rel$sfx ]; then
+		makefile=Makefile.$os.$rel$sfx
+	elif [ -r Makefiles/Makefile.$os.$rel ]; then
+		makefile=Makefile.$os.$rel
+	elif [ -r Makefiles/Makefile.$os.$rroot$sfx ]; then
+		makefile=Makefile.$os.$rroot$sfx
+	elif [ -r Makefiles/Makefile.$os.$rroot ]; then
+		makefile=Makefile.$os.$rroot
+	elif [ -r Makefiles/Makefile.$os.$rbase.x$sfx ]; then
+		makefile=Makefile.$os.$rbase.x$sfx
+	elif [ -r Makefiles/Makefile.$os.$rbase.x ]; then
+		makefile=Makefile.$os.$rbase.x
+	elif [ -r Makefiles/Makefile.$os.$arch$sfx ]; then
+		makefile=Makefile.$os.$arch$sfx
+	elif [ -r Makefiles/Makefile.$os.$arch ]; then
+		makefile=Makefile.$os.$arch
+	elif [ -r Makefiles/Makefile.$rel.$arch$sfx ]; then
+		makefile=Makefile.$rel.$arch$sfx
+	elif [ -r Makefiles/Makefile.$rel.$arch ]; then
+		makefile=Makefile.$rel.$arch
+	elif [ -r Makefiles/Makefile.$rroot.$arch$sfx ]; then
+		makefile=Makefile.$rroot.$arch$sfx
+	elif [ -r Makefiles/Makefile.$rroot.$arch ]; then
+		makefile=Makefile.$rroot.$arch
+	elif [ -r Makefiles/Makefile.$rbase.x.$arch$sfx ]; then
+		makefile=Makefile.$rbase.x.$arch$sfx
+	elif [ -r Makefiles/Makefile.$rbase.x.$arch ]; then
+		makefile=Makefile.$rbase.x.$arch
+	elif [ -r Makefiles/Makefile.$os$sfx ]; then
+		makefile=Makefile.$os$sfx
+	elif [ -r Makefiles/Makefile.$os ]; then
+		makefile=Makefile.$os
+	elif [ -r Makefiles/Makefile.$arch$sfx ]; then
+		makefile=Makefile.$arch$sfx
+	elif [ -r Makefiles/Makefile.$arch ]; then
+		makefile=Makefile.$arch
+	elif [ -r Makefiles/Makefile.$rel$sfx ]; then
+		makefile=Makefile.$rel$sfx
+	elif [ -r Makefiles/Makefile.$rel ]; then
+		makefile=Makefile.$rel
+	elif [ -r Makefiles/Makefile.$rel$sfx ]; then
+		makefile=Makefile.$rel$sfx
+	else
+		echo "Cannot determine how to support $arch.$os.$rel"
+		exit 1
+	fi
+	if [ "$mflag" ]
+	then
+		echo "Will run in virgin $obj using $makefile"
+		exit 0
+	fi
+	echo "Creating $obj using $makefile"
+	mkdir $obj
+	(cd $obj; ln -s ../*.[ch158] ../sendmail.hf .; ln -s ../Makefiles/$makefile Makefile)
+	echo "Making dependencies in $obj"
+	(cd $obj; ${MAKE-make} depend)
+fi
+
+if [ "$mflag" ]
+then
+	makefile=`ls -l $obj/Makefile | sed 's/.* //'`
+	if [ -z "$makefile" ]
+	then
+		echo "ERROR: $obj exists but has no Makefile"
+		exit 1
+	fi
+	case $makefile
+	in
+	  ../Makefiles/*)
+		makefile=`echo $makefile | sed 's/...Makefiles.//'`
+		echo "Will run in existing $obj using $makefile"
+		;;
+
+	  *)
+		echo "Will run in existing $obj using custom $makefile"
+		;;
+	esac
+	exit 0
+fi
+
+echo "Making in $obj"
+cd $obj
+if [ $# = 0 ]
+then
+	exec ${MAKE-make}
+else
+	exec ${MAKE-make} "$@"
+fi
diff --git a/src/map.c b/src/map.c
new file mode 100644
index 0000000..e889736
--- /dev/null
+++ b/src/map.c
@@ -0,0 +1,4399 @@
+/*
+ * Copyright (c) 1992, 1995-1997 Eric P. Allman.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)map.c	8.186 (Berkeley) 10/21/97";
+#endif /* not lint */
+
+#include "sendmail.h"
+
+#ifdef NDBM
+# include <ndbm.h>
+# ifdef R_FIRST
+  ERROR README:	You are running the Berkeley DB version of ndbm.h.  See
+  ERROR README:	the READ_ME file about tweaking Berkeley DB so it can
+  ERROR README:	coexist with NDBM, or delete -DNDBM from the Makefile
+  ERROR README: and use -DNEWDB instead.
+# endif
+#endif
+#ifdef NEWDB
+# include <db.h>
+#endif
+#ifdef NIS
+  struct dom_binding;	/* forward reference needed on IRIX */
+# include <rpcsvc/ypclnt.h>
+# ifdef NDBM
+#  define NDBM_YP_COMPAT	/* create YP-compatible NDBM files */
+# endif
+#endif
+
+/*
+**  MAP.C -- implementations for various map classes.
+**
+**	Each map class implements a series of functions:
+**
+**	bool map_parse(MAP *map, char *args)
+**		Parse the arguments from the config file.  Return TRUE
+**		if they were ok, FALSE otherwise.  Fill in map with the
+**		values.
+**
+**	char *map_lookup(MAP *map, char *key, char **args, int *pstat)
+**		Look up the key in the given map.  If found, do any
+**		rewriting the map wants (including "args" if desired)
+**		and return the value.  Set *pstat to the appropriate status
+**		on error and return NULL.  Args will be NULL if called
+**		from the alias routines, although this should probably
+**		not be relied upon.  It is suggested you call map_rewrite
+**		to return the results -- it takes care of null termination
+**		and uses a dynamically expanded buffer as needed.
+**
+**	void map_store(MAP *map, char *key, char *value)
+**		Store the key:value pair in the map.
+**
+**	bool map_open(MAP *map, int mode)
+**		Open the map for the indicated mode.  Mode should
+**		be either O_RDONLY or O_RDWR.  Return TRUE if it
+**		was opened successfully, FALSE otherwise.  If the open
+**		failed an the MF_OPTIONAL flag is not set, it should
+**		also print an error.  If the MF_ALIAS bit is set
+**		and this map class understands the @:@ convention, it
+**		should call aliaswait() before returning.
+**
+**	void map_close(MAP *map)
+**		Close the map.
+**
+**	This file also includes the implementation for getcanonname.
+**	It is currently implemented in a pretty ad-hoc manner; it ought
+**	to be more properly integrated into the map structure.
+*/
+
+#define DBMMODE		0644
+
+#ifndef EX_NOTFOUND
+# define EX_NOTFOUND	EX_NOHOST
+#endif
+
+extern bool	aliaswait __P((MAP *, char *, int));
+extern bool	extract_canonname __P((char *, char *, char[], int));
+
+#if O_EXLOCK && HASFLOCK && !BOGUS_O_EXCL
+# define LOCK_ON_OPEN	1	/* we can open/create a locked file */
+#else
+# define LOCK_ON_OPEN	0	/* no such luck -- bend over backwards */
+#endif
+
+#ifndef O_ACCMODE
+# define O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
+#endif
+/*
+**  MAP_PARSEARGS -- parse config line arguments for database lookup
+**
+**	This is a generic version of the map_parse method.
+**
+**	Parameters:
+**		map -- the map being initialized.
+**		ap -- a pointer to the args on the config line.
+**
+**	Returns:
+**		TRUE -- if everything parsed OK.
+**		FALSE -- otherwise.
+**
+**	Side Effects:
+**		null terminates the filename; stores it in map
+*/
+
+bool
+map_parseargs(map, ap)
+	MAP *map;
+	char *ap;
+{
+	register char *p = ap;
+
+	map->map_mflags |= MF_TRY0NULL | MF_TRY1NULL;
+	for (;;)
+	{
+		while (isascii(*p) && isspace(*p))
+			p++;
+		if (*p != '-')
+			break;
+		switch (*++p)
+		{
+		  case 'N':
+			map->map_mflags |= MF_INCLNULL;
+			map->map_mflags &= ~MF_TRY0NULL;
+			break;
+
+		  case 'O':
+			map->map_mflags &= ~MF_TRY1NULL;
+			break;
+
+		  case 'o':
+			map->map_mflags |= MF_OPTIONAL;
+			break;
+
+		  case 'f':
+			map->map_mflags |= MF_NOFOLDCASE;
+			break;
+
+		  case 'm':
+			map->map_mflags |= MF_MATCHONLY;
+			break;
+
+		  case 'A':
+			map->map_mflags |= MF_APPEND;
+			break;
+
+		  case 'q':
+			map->map_mflags |= MF_KEEPQUOTES;
+			break;
+
+		  case 'a':
+			map->map_app = ++p;
+			break;
+
+		  case 'k':
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			map->map_keycolnm = p;
+			break;
+
+		  case 'v':
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			map->map_valcolnm = p;
+			break;
+
+		  case 'z':
+			if (*++p != '\\')
+				map->map_coldelim = *p;
+			else
+			{
+				switch (*++p)
+				{
+				  case 'n':
+					map->map_coldelim = '\n';
+					break;
+
+				  case 't':
+					map->map_coldelim = '\t';
+					break;
+
+				  default:
+					map->map_coldelim = '\\';
+				}
+			}
+			break;
+
+		  case 't':
+			map->map_mflags |= MF_NODEFER;
+			break;
+
+#ifdef RESERVED_FOR_SUN
+		  case 'd':
+			map->map_mflags |= MF_DOMAIN_WIDE;
+			break;
+
+		  case 's':
+			/* info type */
+			break;
+#endif
+		}
+		while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+			p++;
+		if (*p != '\0')
+			*p++ = '\0';
+	}
+	if (map->map_app != NULL)
+		map->map_app = newstr(map->map_app);
+	if (map->map_keycolnm != NULL)
+		map->map_keycolnm = newstr(map->map_keycolnm);
+	if (map->map_valcolnm != NULL)
+		map->map_valcolnm = newstr(map->map_valcolnm);
+
+	if (*p != '\0')
+	{
+		map->map_file = p;
+		while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+			p++;
+		if (*p != '\0')
+			*p++ = '\0';
+		map->map_file = newstr(map->map_file);
+	}
+
+	while (*p != '\0' && isascii(*p) && isspace(*p))
+		p++;
+	if (*p != '\0')
+		map->map_rebuild = newstr(p);
+
+	if (map->map_file == NULL &&
+	    !bitset(MCF_OPTFILE, map->map_class->map_cflags))
+	{
+		syserr("No file name for %s map %s",
+			map->map_class->map_cname, map->map_mname);
+		return FALSE;
+	}
+	return TRUE;
+}
+/*
+**  MAP_REWRITE -- rewrite a database key, interpolating %n indications.
+**
+**	It also adds the map_app string.  It can be used as a utility
+**	in the map_lookup method.
+**
+**	Parameters:
+**		map -- the map that causes this.
+**		s -- the string to rewrite, NOT necessarily null terminated.
+**		slen -- the length of s.
+**		av -- arguments to interpolate into buf.
+**
+**	Returns:
+**		Pointer to rewritten result.  This is static data that
+**		should be copied if it is to be saved!
+**
+**	Side Effects:
+**		none.
+*/
+
+char *
+map_rewrite(map, s, slen, av)
+	register MAP *map;
+	register const char *s;
+	int slen;
+	char **av;
+{
+	register char *bp;
+	register char c;
+	char **avp;
+	register char *ap;
+	int i;
+	int len;
+	static int buflen = -1;
+	static char *buf = NULL;
+
+	if (tTd(39, 1))
+	{
+		printf("map_rewrite(%.*s), av =", slen, s);
+		if (av == NULL)
+			printf(" (nullv)");
+		else
+		{
+			for (avp = av; *avp != NULL; avp++)
+				printf("\n\t%s", *avp);
+		}
+		printf("\n");
+	}
+
+	/* count expected size of output (can safely overestimate) */
+	i = len = slen;
+	if (av != NULL)
+	{
+		const char *sp = s;
+
+		for (i = slen; --i >= 0 && (c = *sp++) != 0; )
+		{
+			if (c != '%')
+				continue;
+			if (--i < 0)
+				break;
+			c = *sp++;
+			if (!(isascii(c) && isdigit(c)))
+				continue;
+			for (avp = av; --c >= '0' && *avp != NULL; avp++)
+				continue;
+			if (*avp == NULL)
+				continue;
+			len += strlen(*avp);
+		}
+	}
+	if (map->map_app != NULL)
+		len += strlen(map->map_app);
+	if (buflen < ++len)
+	{
+		/* need to malloc additional space */
+		buflen = len;
+		if (buf != NULL)
+			free(buf);
+		buf = xalloc(buflen);
+	}
+
+	bp = buf;
+	if (av == NULL)
+	{
+		bcopy(s, bp, slen);
+		bp += slen;
+	}
+	else
+	{
+		while (--slen >= 0 && (c = *s++) != '\0')
+		{
+			if (c != '%')
+			{
+  pushc:
+				*bp++ = c;
+				continue;
+			}
+			if (--slen < 0 || (c = *s++) == '\0')
+				c = '%';
+			if (c == '%')
+				goto pushc;
+			if (!(isascii(c) && isdigit(c)))
+			{
+				*bp++ = '%';
+				goto pushc;
+			}
+			for (avp = av; --c >= '0' && *avp != NULL; avp++)
+				continue;
+			if (*avp == NULL)
+				continue;
+
+			/* transliterate argument into output string */
+			for (ap = *avp; (c = *ap++) != '\0'; )
+				*bp++ = c;
+		}
+	}
+	if (map->map_app != NULL)
+		strcpy(bp, map->map_app);
+	else
+		*bp = '\0';
+	if (tTd(39, 1))
+		printf("map_rewrite => %s\n", buf);
+	return buf;
+}
+/*
+**  INITMAPS -- initialize for aliasing
+**
+**	Parameters:
+**		rebuild -- if TRUE, this rebuilds the cached versions.
+**		e -- current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		initializes aliases:
+**		if alias database:  opens the database.
+**		if no database available: reads aliases into the symbol table.
+*/
+
+void
+initmaps(rebuild, e)
+	bool rebuild;
+	register ENVELOPE *e;
+{
+	extern void map_init();
+
+#if XDEBUG
+	checkfd012("entering initmaps");
+#endif
+	CurEnv = e;
+
+	stabapply(map_init, 0);
+	stabapply(map_init, rebuild ? 2 : 1);
+#if XDEBUG
+	checkfd012("exiting initmaps");
+#endif
+}
+
+void
+map_init(s, pass)
+	register STAB *s;
+	int pass;
+{
+	bool rebuildable;
+	register MAP *map;
+
+	/* has to be a map */
+	if (s->s_type != ST_MAP)
+		return;
+
+	map = &s->s_map;
+	if (!bitset(MF_VALID, map->map_mflags))
+		return;
+
+	if (tTd(38, 2))
+		printf("map_init(%s:%s, %s, %d)\n",
+			map->map_class->map_cname == NULL ? "NULL" :
+				map->map_class->map_cname,
+			map->map_mname == NULL ? "NULL" : map->map_mname,
+			map->map_file == NULL ? "NULL" : map->map_file,
+			pass);
+
+	/*
+	** Pass 0 opens all non-rebuildable maps.
+	** Pass 1 opens all rebuildable maps for read.
+	** Pass 2 rebuilds all rebuildable maps.
+	*/
+
+	rebuildable = (bitset(MF_ALIAS, map->map_mflags) &&
+		       bitset(MCF_REBUILDABLE, map->map_class->map_cflags));
+
+	if ((pass == 0 && rebuildable) ||
+	    ((pass == 1 || pass == 2) && !rebuildable))
+	{
+		if (tTd(38, 3))
+			printf("\twrong pass (pass = %d, rebuildable = %d)\n",
+			       pass, rebuildable);
+		return;
+	}
+
+	/* if already open, close it (for nested open) */
+	if (bitset(MF_OPEN, map->map_mflags))
+	{
+		map->map_class->map_close(map);
+		map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
+	}
+		
+	if (pass == 2)
+	{
+		rebuildaliases(map, FALSE);
+		return;
+	}
+
+	if (map->map_class->map_open(map, O_RDONLY))
+	{
+		if (tTd(38, 4))
+			printf("\t%s:%s %s: valid\n",
+				map->map_class->map_cname == NULL ? "NULL" :
+					map->map_class->map_cname,
+				map->map_mname == NULL ? "NULL" :
+					map->map_mname,
+				map->map_file == NULL ? "NULL" :
+					map->map_file);
+		map->map_mflags |= MF_OPEN;
+	}
+	else
+	{
+		if (tTd(38, 4))
+			printf("\t%s:%s %s: invalid: %s\n",
+				map->map_class->map_cname == NULL ? "NULL" :
+					map->map_class->map_cname,
+				map->map_mname == NULL ? "NULL" :
+					map->map_mname,
+				map->map_file == NULL ? "NULL" :
+					map->map_file,
+				errstring(errno));
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+		{
+			extern MAPCLASS BogusMapClass;
+
+			map->map_class = &BogusMapClass;
+			map->map_mflags |= MF_OPEN;
+		}
+	}
+}
+/*
+**  GETCANONNAME -- look up name using service switch
+**
+**	Parameters:
+**		host -- the host name to look up.
+**		hbsize -- the size of the host buffer.
+**		trymx -- if set, try MX records.
+**
+**	Returns:
+**		TRUE -- if the host was found.
+**		FALSE -- otherwise.
+*/
+
+bool
+getcanonname(host, hbsize, trymx)
+	char *host;
+	int hbsize;
+	bool trymx;
+{
+	int nmaps;
+	int mapno;
+	bool found = FALSE;
+	bool got_tempfail = FALSE;
+	auto int stat;
+	char *maptype[MAXMAPSTACK];
+	short mapreturn[MAXMAPACTIONS];
+
+	nmaps = switch_map_find("hosts", maptype, mapreturn);
+	for (mapno = 0; mapno < nmaps; mapno++)
+	{
+		int i;
+
+		if (tTd(38, 20))
+			printf("getcanonname(%s), trying %s\n",
+				host, maptype[mapno]);
+		if (strcmp("files", maptype[mapno]) == 0)
+		{
+			extern bool text_getcanonname __P((char *, int, int *));
+
+			found = text_getcanonname(host, hbsize, &stat);
+		}
+#ifdef NIS
+		else if (strcmp("nis", maptype[mapno]) == 0)
+		{
+			extern bool nis_getcanonname __P((char *, int, int *));
+
+			found = nis_getcanonname(host, hbsize, &stat);
+		}
+#endif
+#ifdef NISPLUS
+		else if (strcmp("nisplus", maptype[mapno]) == 0)
+		{
+			extern bool nisplus_getcanonname __P((char *, int, int *));
+
+			found = nisplus_getcanonname(host, hbsize, &stat);
+		}
+#endif
+#if NAMED_BIND
+		else if (strcmp("dns", maptype[mapno]) == 0)
+		{
+			extern bool dns_getcanonname __P((char *, int, bool, int *));
+
+			found = dns_getcanonname(host, hbsize, trymx, &stat);
+		}
+#endif
+#if NETINFO
+		else if (strcmp("netinfo", maptype[mapno]) == 0)
+		{
+			extern bool ni_getcanonname __P((char *, int, int *));
+
+			found = ni_getcanonname(host, hbsize, &stat);
+		}
+#endif
+		else
+		{
+			found = FALSE;
+			stat = EX_UNAVAILABLE;
+		}
+
+		/*
+		**  Heuristic: if $m is not set, we are running during system
+		**  startup.  In this case, when a name is apparently found
+		**  but has no dot, treat is as not found.  This avoids
+		**  problems if /etc/hosts has no FQDN but is listed first
+		**  in the service switch.
+		*/
+
+		if (found &&
+		    (macvalue('m', CurEnv) != NULL || strchr(host, '.') != NULL))
+			break;
+
+		/* see if we should continue */
+		if (stat == EX_TEMPFAIL)
+		{
+			i = MA_TRYAGAIN;
+			got_tempfail = TRUE;
+		}
+		else if (stat == EX_NOTFOUND)
+			i = MA_NOTFOUND;
+		else
+			i = MA_UNAVAIL;
+		if (bitset(1 << mapno, mapreturn[i]))
+			break;
+	}
+
+	if (found)
+	{
+		char *d;
+
+		if (tTd(38, 20))
+			printf("getcanonname(%s), found\n", host);
+
+		/*
+		**  If returned name is still single token, compensate
+		**  by tagging on $m.  This is because some sites set
+		**  up their DNS or NIS databases wrong.
+		*/
+
+		if ((d = strchr(host, '.')) == NULL || d[1] == '\0')
+		{
+			d = macvalue('m', CurEnv);
+			if (d != NULL &&
+			    hbsize > (int) (strlen(host) + strlen(d) + 1))
+			{
+				if (host[strlen(host) - 1] != '.')
+					strcat(host, ".");
+				strcat(host, d);
+			}
+			else
+			{
+				return FALSE;
+			}
+		}
+		return TRUE;
+	}
+
+	if (tTd(38, 20))
+		printf("getcanonname(%s), failed, stat=%d\n", host, stat);
+
+#if NAMED_BIND
+	if (got_tempfail)
+		h_errno = TRY_AGAIN;
+	else
+		h_errno = HOST_NOT_FOUND;
+#endif
+
+	return FALSE;
+}
+/*
+**  EXTRACT_CANONNAME -- extract canonical name from /etc/hosts entry
+**
+**	Parameters:
+**		name -- the name against which to match.
+**		line -- the /etc/hosts line.
+**		cbuf -- the location to store the result.
+**		cbuflen -- the size of cbuf.
+**
+**	Returns:
+**		TRUE -- if the line matched the desired name.
+**		FALSE -- otherwise.
+*/
+
+bool
+extract_canonname(name, line, cbuf, cbuflen)
+	char *name;
+	char *line;
+	char cbuf[];
+	int cbuflen;
+{
+	int i;
+	char *p;
+	bool found = FALSE;
+	extern char *get_column __P((char *, int, char, char *, int));
+
+	cbuf[0] = '\0';
+	if (line[0] == '#')
+		return FALSE;
+
+	for (i = 1; ; i++)
+	{
+		char nbuf[MAXNAME + 1];
+
+		p = get_column(line, i, '\0', nbuf, sizeof nbuf);
+		if (p == NULL)
+			break;
+		if (*p == '\0')
+			continue;
+		if (cbuf[0] == '\0' ||
+		    (strchr(cbuf, '.') == NULL && strchr(p, '.') != NULL))
+		{
+			snprintf(cbuf, cbuflen, "%s", p);
+		}
+		if (strcasecmp(name, p) == 0)
+			found = TRUE;
+	}
+	if (found && strchr(cbuf, '.') == NULL)
+	{
+		/* try to add a domain on the end of the name */
+		char *domain = macvalue('m', CurEnv);
+
+		if (domain != NULL &&
+		    strlen(domain) + strlen(cbuf) + 1 < cbuflen)
+		{
+			p = &cbuf[strlen(cbuf)];
+			*p++ = '.';
+			strcpy(p, domain);
+		}
+	}
+	return found;
+}
+/*
+**  NDBM modules
+*/
+
+#ifdef NDBM
+
+/*
+**  NDBM_MAP_OPEN -- DBM-style map open
+*/
+
+bool
+ndbm_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	register DBM *dbm;
+	struct stat st;
+	int dfd;
+	int pfd;
+	int sff;
+	int ret;
+	int smode = S_IREAD;
+	char dirfile[MAXNAME + 1];
+	char pagfile[MAXNAME + 1];
+	struct stat std, stp;
+
+	if (tTd(38, 2))
+		printf("ndbm_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+	map->map_lockfd = -1;
+	mode &= O_ACCMODE;
+
+	/* do initial file and directory checks */
+	snprintf(dirfile, sizeof dirfile, "%s.dir", map->map_file);
+	snprintf(pagfile, sizeof pagfile, "%s.pag", map->map_file);
+	sff = SFF_ROOTOK|SFF_REGONLY;
+	if (mode == O_RDWR)
+	{
+		sff |= SFF_NOLINK|SFF_CREAT;
+		smode = S_IWRITE;
+	}
+	else
+	{
+		sff |= SFF_NOWLINK;
+	}
+	if (FatalWritableDirs)
+		sff |= SFF_SAFEDIRPATH;
+	if ((ret = safefile(dirfile, RunAsUid, RunAsGid, RunAsUserName,
+			    sff, smode, &std)) != 0 ||
+	    (ret = safefile(pagfile, RunAsUid, RunAsGid, RunAsUserName,
+			    sff, smode, &stp)) != 0)
+	{
+		/* cannot open this map */
+		if (tTd(38, 2))
+			printf("\tunsafe map file: %d\n", ret);
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("dbm map \"%s\": unsafe map file %s",
+				map->map_mname, map->map_file);
+		return FALSE;
+	}
+	if (std.st_mode == ST_MODE_NOFILE)
+		mode |= O_CREAT|O_EXCL;
+
+#if LOCK_ON_OPEN
+	if (mode == O_RDONLY)
+		mode |= O_SHLOCK;
+	else
+		mode |= O_TRUNC|O_EXLOCK;
+#else
+	if ((mode & O_ACCMODE) == O_RDWR)
+	{
+# if NOFTRUNCATE
+		/*
+		**  Warning: race condition.  Try to lock the file as
+		**  quickly as possible after opening it.
+		**	This may also have security problems on some systems,
+		**	but there isn't anything we can do about it.
+		*/
+
+		mode |= O_TRUNC;
+# else
+		/*
+		**  This ugly code opens the map without truncating it,
+		**  locks the file, then truncates it.  Necessary to
+		**  avoid race conditions.
+		*/
+
+		int dirfd;
+		int pagfd;
+
+		dirfd = safeopen(dirfile, mode, DBMMODE,
+				 SFF_NOLINK|SFF_CREAT|SFF_OPENASROOT);
+		pagfd = safeopen(pagfile, mode, DBMMODE,
+				 SFF_NOLINK|SFF_CREAT|SFF_OPENASROOT);
+
+		if (dirfd < 0 || pagfd < 0)
+		{
+			int save_errno = errno;
+
+			if (dirfd >= 0)
+				(void) close(dirfd);
+			if (pagfd >= 0)
+				(void) close(pagfd);
+			errno = save_errno;
+			syserr("ndbm_map_open: cannot create database %s",
+				map->map_file);
+			return FALSE;
+		}
+		if (ftruncate(dirfd, (off_t) 0) < 0 ||
+		    ftruncate(pagfd, (off_t) 0) < 0)
+		{
+			int save_errno = errno;
+
+			(void) close(dirfd);
+			(void) close(pagfd);
+			errno = save_errno;
+			syserr("ndbm_map_open: cannot truncate %s.{dir,pag}",
+				map->map_file);
+			return FALSE;
+		}
+
+		/* if new file, get "before" bits for later filechanged check */
+		if (std.st_mode == ST_MODE_NOFILE &&
+		    (fstat(dirfd, &std) < 0 || fstat(pagfd, &stp) < 0))
+		{
+			int save_errno = errno;
+
+			(void) close(dirfd);
+			(void) close(pagfd);
+			errno = save_errno;
+			syserr("ndbm_map_open(%s.{dir,pag}): cannot fstat pre-opened file",
+				map->map_file);
+			return FALSE;
+		}
+
+		/* have to save the lock for the duration (bletch) */
+		map->map_lockfd = dirfd;
+		close(pagfd);
+
+		/* twiddle bits for dbm_open */
+		mode &= ~(O_CREAT|O_EXCL);
+# endif
+	}
+#endif
+
+	/* open the database */
+	dbm = dbm_open(map->map_file, mode, DBMMODE);
+	if (dbm == NULL)
+	{
+		int save_errno = errno;
+
+		if (bitset(MF_ALIAS, map->map_mflags) &&
+		    aliaswait(map, ".pag", FALSE))
+			return TRUE;
+#if !LOCK_ON_OPEN && !NOFTRUNCATE
+		if (map->map_lockfd >= 0)
+			close(map->map_lockfd);
+#endif
+		errno = save_errno;
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("Cannot open DBM database %s", map->map_file);
+		return FALSE;
+	}
+	dfd = dbm_dirfno(dbm);
+	pfd = dbm_pagfno(dbm);
+	if (dfd == pfd)
+	{
+		/* heuristic: if files are linked, this is actually gdbm */
+		dbm_close(dbm);
+#if !LOCK_ON_OPEN && !NOFTRUNCATE
+		if (map->map_lockfd >= 0)
+			close(map->map_lockfd);
+#endif
+		errno = 0;
+		syserr("dbm map \"%s\": cannot support GDBM",
+			map->map_mname);
+		return FALSE;
+	}
+
+	if (filechanged(dirfile, dfd, &std, sff) ||
+	    filechanged(pagfile, pfd, &stp, sff))
+	{
+		int save_errno = errno;
+
+		dbm_close(dbm);
+#if !LOCK_ON_OPEN && !NOFTRUNCATE
+		if (map->map_lockfd >= 0)
+			close(map->map_lockfd);
+#endif
+		errno = save_errno;
+		syserr("ndbm_map_open(%s): file changed after open",
+			map->map_file);
+		return FALSE;
+	}
+
+	map->map_db1 = (ARBPTR_T) dbm;
+	if (mode == O_RDONLY)
+	{
+#if LOCK_ON_OPEN
+		if (dfd >= 0)
+			(void) lockfile(dfd, map->map_file, ".dir", LOCK_UN);
+		if (pfd >= 0)
+			(void) lockfile(pfd, map->map_file, ".pag", LOCK_UN);
+#endif
+		if (bitset(MF_ALIAS, map->map_mflags) &&
+		    !aliaswait(map, ".pag", TRUE))
+			return FALSE;
+	}
+	else
+	{
+		map->map_mflags |= MF_LOCKED;
+	}
+	if (fstat(dfd, &st) >= 0)
+		map->map_mtime = st.st_mtime;
+	return TRUE;
+}
+
+
+/*
+**  NDBM_MAP_LOOKUP -- look up a datum in a DBM-type map
+*/
+
+char *
+ndbm_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	datum key, val;
+	int fd;
+	char keybuf[MAXNAME + 1];
+	struct stat stbuf;
+
+	if (tTd(38, 20))
+		printf("ndbm_map_lookup(%s, %s)\n",
+			map->map_mname, name);
+
+	key.dptr = name;
+	key.dsize = strlen(name);
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+	{
+		if (key.dsize > sizeof keybuf - 1)
+			key.dsize = sizeof keybuf - 1;
+		bcopy(key.dptr, keybuf, key.dsize);
+		keybuf[key.dsize] = '\0';
+		makelower(keybuf);
+		key.dptr = keybuf;
+	}
+lockdbm:
+	fd = dbm_dirfno((DBM *) map->map_db1);
+	if (fd >= 0 && !bitset(MF_LOCKED, map->map_mflags))
+		(void) lockfile(fd, map->map_file, ".dir", LOCK_SH);
+	if (fd < 0 || fstat(fd, &stbuf) < 0 || stbuf.st_mtime > map->map_mtime) 
+	{
+		/* Reopen the database to sync the cache */
+		int omode = bitset(map->map_mflags, MF_WRITABLE) ? O_RDWR
+								 : O_RDONLY;
+
+		map->map_class->map_close(map);
+		map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
+		if (map->map_class->map_open(map, omode)) 
+		{
+			map->map_mflags |= MF_OPEN;
+			if ((omode && O_ACCMODE) == O_RDWR)
+				map->map_mflags |= MF_WRITABLE;
+			goto lockdbm;
+		}
+		else
+		{
+			if (!bitset(MF_OPTIONAL, map->map_mflags)) 
+			{
+				extern MAPCLASS BogusMapClass;
+
+				*statp = EX_TEMPFAIL;
+				map->map_class = &BogusMapClass;
+				map->map_mflags |= MF_OPEN;
+				syserr("Cannot reopen NDBM database %s",
+					map->map_file);
+			}
+			return NULL;
+		}
+	}
+	val.dptr = NULL;
+	if (bitset(MF_TRY0NULL, map->map_mflags))
+	{
+		val = dbm_fetch((DBM *) map->map_db1, key);
+		if (val.dptr != NULL)
+			map->map_mflags &= ~MF_TRY1NULL;
+	}
+	if (val.dptr == NULL && bitset(MF_TRY1NULL, map->map_mflags))
+	{
+		key.dsize++;
+		val = dbm_fetch((DBM *) map->map_db1, key);
+		if (val.dptr != NULL)
+			map->map_mflags &= ~MF_TRY0NULL;
+	}
+	if (fd >= 0 && !bitset(MF_LOCKED, map->map_mflags))
+		(void) lockfile(fd, map->map_file, ".dir", LOCK_UN);
+	if (val.dptr == NULL)
+		return NULL;
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, name, strlen(name), NULL);
+	else
+		return map_rewrite(map, val.dptr, val.dsize, av);
+}
+
+
+/*
+**  NDBM_MAP_STORE -- store a datum in the database
+*/
+
+void
+ndbm_map_store(map, lhs, rhs)
+	register MAP *map;
+	char *lhs;
+	char *rhs;
+{
+	datum key;
+	datum data;
+	int stat;
+	char keybuf[MAXNAME + 1];
+
+	if (tTd(38, 12))
+		printf("ndbm_map_store(%s, %s, %s)\n",
+			map->map_mname, lhs, rhs);
+
+	key.dsize = strlen(lhs);
+	key.dptr = lhs;
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+	{
+		if (key.dsize > sizeof keybuf - 1)
+			key.dsize = sizeof keybuf - 1;
+		bcopy(key.dptr, keybuf, key.dsize);
+		keybuf[key.dsize] = '\0';
+		makelower(keybuf);
+		key.dptr = keybuf;
+	}
+
+	data.dsize = strlen(rhs);
+	data.dptr = rhs;
+
+	if (bitset(MF_INCLNULL, map->map_mflags))
+	{
+		key.dsize++;
+		data.dsize++;
+	}
+
+	stat = dbm_store((DBM *) map->map_db1, key, data, DBM_INSERT);
+	if (stat > 0)
+	{
+		if (!bitset(MF_APPEND, map->map_mflags))
+			message("050 Warning: duplicate alias name %s", lhs);
+		else
+		{
+			static char *buf = NULL;
+			static int bufsiz = 0;
+			auto int xstat;
+			datum old;
+
+			old.dptr = ndbm_map_lookup(map, key.dptr, NULL, &xstat);
+			if (old.dptr != NULL && *(char *) old.dptr != '\0')
+			{
+				old.dsize = strlen(old.dptr);
+				if (data.dsize + old.dsize + 2 > bufsiz)
+				{
+					if (buf != NULL)
+						(void) free(buf);
+					bufsiz = data.dsize + old.dsize + 2;
+					buf = xalloc(bufsiz);
+				}
+				snprintf(buf, bufsiz, "%s,%s",
+					data.dptr, old.dptr);
+				data.dsize = data.dsize + old.dsize + 1;
+				data.dptr = buf;
+				if (tTd(38, 9))
+					printf("ndbm_map_store append=%s\n", data.dptr);
+			}
+		}
+		stat = dbm_store((DBM *) map->map_db1, key, data, DBM_REPLACE);
+	}
+	if (stat != 0)
+		syserr("readaliases: dbm put (%s)", lhs);
+}
+
+
+/*
+**  NDBM_MAP_CLOSE -- close the database
+*/
+
+void
+ndbm_map_close(map)
+	register MAP  *map;
+{
+	if (tTd(38, 9))
+		printf("ndbm_map_close(%s, %s, %x)\n",
+			map->map_mname, map->map_file, map->map_mflags);
+
+	if (bitset(MF_WRITABLE, map->map_mflags))
+	{
+#ifdef NDBM_YP_COMPAT
+		bool inclnull;
+		char buf[200];
+
+		inclnull = bitset(MF_INCLNULL, map->map_mflags);
+		map->map_mflags &= ~MF_INCLNULL;
+
+		if (strstr(map->map_file, "/yp/") != NULL)
+		{
+			long save_mflags = map->map_mflags;
+
+			map->map_mflags |= MF_NOFOLDCASE;
+
+			(void) snprintf(buf, sizeof buf, "%010ld", curtime());
+			ndbm_map_store(map, "YP_LAST_MODIFIED", buf);
+
+			(void) gethostname(buf, sizeof buf);
+			ndbm_map_store(map, "YP_MASTER_NAME", buf);
+
+			map->map_mflags = save_mflags;
+		}
+
+		if (inclnull)
+			map->map_mflags |= MF_INCLNULL;
+#endif
+
+		/* write out the distinguished alias */
+		ndbm_map_store(map, "@", "@");
+	}
+	dbm_close((DBM *) map->map_db1);
+
+	/* release lock (if needed) */
+#if !LOCK_ON_OPEN
+	if (map->map_lockfd >= 0)
+		(void) close(map->map_lockfd);
+#endif
+}
+
+#endif
+/*
+**  NEWDB (Hash and BTree) Modules
+*/
+
+#ifdef NEWDB
+
+/*
+**  BT_MAP_OPEN, HASH_MAP_OPEN -- database open primitives.
+**
+**	These do rather bizarre locking.  If you can lock on open,
+**	do that to avoid the condition of opening a database that
+**	is being rebuilt.  If you don't, we'll try to fake it, but
+**	there will be a race condition.  If opening for read-only,
+**	we immediately release the lock to avoid freezing things up.
+**	We really ought to hold the lock, but guarantee that we won't
+**	be pokey about it.  That's hard to do.
+*/
+
+extern bool	db_map_open __P((MAP *, int, char *, DBTYPE, const void *));
+
+/* these should be K line arguments */
+#ifndef DB_CACHE_SIZE
+# define DB_CACHE_SIZE	(1024 * 1024)	/* database memory cache size */
+#endif
+#ifndef DB_HASH_NELEM
+# define DB_HASH_NELEM	4096		/* (starting) size of hash table */
+#endif
+
+bool
+bt_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	BTREEINFO btinfo;
+
+	if (tTd(38, 2))
+		printf("bt_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	bzero(&btinfo, sizeof btinfo);
+	btinfo.cachesize = DB_CACHE_SIZE;
+	return db_map_open(map, mode, "btree", DB_BTREE, &btinfo);
+}
+
+bool
+hash_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	HASHINFO hinfo;
+
+	if (tTd(38, 2))
+		printf("hash_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	bzero(&hinfo, sizeof hinfo);
+	hinfo.nelem = DB_HASH_NELEM;
+	hinfo.cachesize = DB_CACHE_SIZE;
+	return db_map_open(map, mode, "hash", DB_HASH, &hinfo);
+}
+
+bool
+db_map_open(map, mode, mapclassname, dbtype, openinfo)
+	MAP *map;
+	int mode;
+	char *mapclassname;
+	DBTYPE dbtype;
+	const void *openinfo;
+{
+	DB *db;
+	int i;
+	int omode;
+	int smode = S_IREAD;
+	int fd;
+	int sff;
+	int saveerrno;
+	struct stat st;
+	char buf[MAXNAME + 1];
+
+	/* do initial file and directory checks */
+	snprintf(buf, sizeof buf - 3, "%s", map->map_file);
+	i = strlen(buf);
+	if (i < 3 || strcmp(&buf[i - 3], ".db") != 0)
+		(void) strcat(buf, ".db");
+
+	mode &= O_ACCMODE;
+	omode = mode;
+
+	sff = SFF_ROOTOK|SFF_REGONLY;
+	if (mode == O_RDWR)
+	{
+		sff |= SFF_NOLINK|SFF_CREAT;
+		smode = S_IWRITE;
+	}
+	else
+	{
+		sff |= SFF_NOWLINK;
+	}
+	if (FatalWritableDirs)
+		sff |= SFF_SAFEDIRPATH;
+	if ((i = safefile(buf, RunAsUid, RunAsGid, RunAsUserName,
+			  sff, smode, &st)) != 0)
+	{
+		/* cannot open this map */
+		if (tTd(38, 2))
+			printf("\tunsafe map file: %s\n", errstring(i));
+		errno = i;
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("%s map \"%s\": unsafe map file %s",
+				mapclassname, map->map_mname, map->map_file);
+		return FALSE;
+	}
+	if (st.st_mode == ST_MODE_NOFILE)
+		omode |= O_CREAT|O_EXCL;
+
+	map->map_lockfd = -1;
+
+#if LOCK_ON_OPEN
+	if (mode == O_RDWR)
+		omode |= O_TRUNC|O_EXLOCK;
+# if !OLD_NEWDB
+	else
+		omode |= O_SHLOCK;
+# endif
+#else
+	/*
+	**  Pre-lock the file to avoid race conditions.  In particular,
+	**  since dbopen returns NULL if the file is zero length, we
+	**  must have a locked instance around the dbopen.
+	*/
+
+	fd = open(buf, omode, DBMMODE);
+	if (fd < 0)
+	{
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("db_map_open: cannot pre-open database %s", buf);
+		return FALSE;
+	}
+
+	/* make sure no baddies slipped in just before the open... */
+	if (filechanged(buf, fd, &st, sff))
+	{
+		int save_errno = errno;
+
+		(void) close(fd);
+		errno = save_errno;
+		syserr("db_map_open(%s): file changed after pre-open", buf);
+		return FALSE;
+	}
+
+	/* if new file, get the "before" bits for later filechanged check */
+	if (st.st_mode == ST_MODE_NOFILE && fstat(fd, &st) < 0)
+	{
+		int save_errno = errno;
+
+		(void) close(fd);
+		errno = save_errno;
+		syserr("db_map_open(%s): cannot fstat pre-opened file",
+			buf);
+		return FALSE;
+	}
+
+	/* actually lock the pre-opened file */
+	if (!lockfile(fd, buf, NULL, mode == O_RDONLY ? LOCK_SH : LOCK_EX))
+		syserr("db_map_open: cannot lock %s", buf);
+
+	/* set up mode bits for dbopen */
+	if (mode == O_RDWR)
+		omode |= O_TRUNC;
+	omode &= ~(O_EXCL|O_CREAT);
+#endif
+
+	db = dbopen(buf, omode, DBMMODE, dbtype, openinfo);
+	saveerrno = errno;
+
+#if !LOCK_ON_OPEN
+	if (mode == O_RDWR)
+		map->map_lockfd = fd;
+	else
+		(void) close(fd);
+#endif
+
+	if (db == NULL)
+	{
+		if (mode == O_RDONLY && bitset(MF_ALIAS, map->map_mflags) &&
+		    aliaswait(map, ".db", FALSE))
+			return TRUE;
+#if !LOCK_ON_OPEN
+		if (map->map_lockfd >= 0)
+			(void) close(map->map_lockfd);
+#endif
+		errno = saveerrno;
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("Cannot open %s database %s",
+				mapclassname, map->map_file);
+		return FALSE;
+	}
+
+	if (filechanged(buf, db->fd(db), &st, sff))
+	{
+		int save_errno = errno;
+
+		db->close(db);
+#if !LOCK_ON_OPEN
+		if (map->map_lockfd >= 0)
+			close(map->map_lockfd);
+#endif
+		errno = save_errno;
+		syserr("db_map_open(%s): file changed after open", buf);
+		return FALSE;
+	}
+
+	if (mode == O_RDWR)
+		map->map_mflags |= MF_LOCKED;
+#if !OLD_NEWDB
+	fd = db->fd(db);
+# if LOCK_ON_OPEN
+	if (fd >= 0 && mode == O_RDONLY)
+	{
+		(void) lockfile(fd, buf, NULL, LOCK_UN);
+	}
+# endif
+#endif
+
+	/* try to make sure that at least the database header is on disk */
+	if (mode == O_RDWR)
+#if OLD_NEWDB
+		(void) db->sync(db);
+#else
+		(void) db->sync(db, 0);
+
+	if (fd >= 0 && fstat(fd, &st) >= 0)
+		map->map_mtime = st.st_mtime;
+#endif
+
+	map->map_db2 = (ARBPTR_T) db;
+	if (mode == O_RDONLY && bitset(MF_ALIAS, map->map_mflags) &&
+	    !aliaswait(map, ".db", TRUE))
+		return FALSE;
+	return TRUE;
+}
+
+
+/*
+**  DB_MAP_LOOKUP -- look up a datum in a BTREE- or HASH-type map
+*/
+
+char *
+db_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	DBT key, val;
+	register DB *db = (DB *) map->map_db2;
+	int i;
+	int st;
+	int saveerrno;
+	int fd;
+	struct stat stbuf;
+	char keybuf[MAXNAME + 1];
+	char buf[MAXNAME + 1];
+
+	if (tTd(38, 20))
+		printf("db_map_lookup(%s, %s)\n",
+			map->map_mname, name);
+
+	i = strlen(map->map_file);
+	if (i > MAXNAME)
+		i = MAXNAME;
+	strncpy(buf, map->map_file, i);
+	buf[i] = '\0';
+	if (i > 3 && strcmp(&buf[i - 3], ".db") == 0)
+		buf[i - 3] = '\0';
+
+	key.size = strlen(name);
+	if (key.size > sizeof keybuf - 1)
+		key.size = sizeof keybuf - 1;
+	key.data = keybuf;
+	bcopy(name, keybuf, key.size);
+	keybuf[key.size] = '\0';
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+		makelower(keybuf);
+#if !OLD_NEWDB
+  lockdb:
+	fd = db->fd(db);
+	if (fd >= 0 && !bitset(MF_LOCKED, map->map_mflags))
+		(void) lockfile(fd, buf, ".db", LOCK_SH);
+	if (fd < 0 || fstat(fd, &stbuf) < 0 || stbuf.st_mtime > map->map_mtime) 
+	{
+		/* Reopen the database to sync the cache */
+		int omode = bitset(map->map_mflags, MF_WRITABLE) ? O_RDWR
+								 : O_RDONLY;
+
+		map->map_class->map_close(map);
+		map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
+		if (map->map_class->map_open(map, omode)) 
+		{
+			map->map_mflags |= MF_OPEN;
+			if ((omode && O_ACCMODE) == O_RDWR)
+				map->map_mflags |= MF_WRITABLE;
+			db = (DB *) map->map_db2;
+			goto lockdb;
+		}
+		else
+		{
+			if (!bitset(MF_OPTIONAL, map->map_mflags)) 
+			{
+				extern MAPCLASS BogusMapClass;
+
+				*statp = EX_TEMPFAIL;
+				map->map_class = &BogusMapClass;
+				map->map_mflags |= MF_OPEN;
+				syserr("Cannot reopen DB database %s",
+					map->map_file);
+			}
+			return NULL;
+		}
+	}
+#endif
+	
+	st = 1;
+	if (bitset(MF_TRY0NULL, map->map_mflags))
+	{
+		st = db->get(db, &key, &val, 0);
+		if (st == 0)
+			map->map_mflags &= ~MF_TRY1NULL;
+	}
+	if (st != 0 && bitset(MF_TRY1NULL, map->map_mflags))
+	{
+		key.size++;
+		st = db->get(db, &key, &val, 0);
+		if (st == 0)
+			map->map_mflags &= ~MF_TRY0NULL;
+	}
+	saveerrno = errno;
+#if !OLD_NEWDB
+	if (fd >= 0 && !bitset(MF_LOCKED, map->map_mflags))
+		(void) lockfile(fd, buf, ".db", LOCK_UN);
+#endif
+	if (st != 0)
+	{
+		errno = saveerrno;
+		if (st < 0)
+			syserr("db_map_lookup: get (%s)", name);
+		return NULL;
+	}
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, name, strlen(name), NULL);
+	else
+		return map_rewrite(map, val.data, val.size, av);
+}
+
+
+/*
+**  DB_MAP_STORE -- store a datum in the NEWDB database
+*/
+
+void
+db_map_store(map, lhs, rhs)
+	register MAP *map;
+	char *lhs;
+	char *rhs;
+{
+	int stat;
+	DBT key;
+	DBT data;
+	register DB *db = map->map_db2;
+	char keybuf[MAXNAME + 1];
+
+	if (tTd(38, 12))
+		printf("db_map_store(%s, %s, %s)\n",
+			map->map_mname, lhs, rhs);
+
+	key.size = strlen(lhs);
+	key.data = lhs;
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+	{
+		if (key.size > sizeof keybuf - 1)
+			key.size = sizeof keybuf - 1;
+		bcopy(key.data, keybuf, key.size);
+		keybuf[key.size] = '\0';
+		makelower(keybuf);
+		key.data = keybuf;
+	}
+
+	data.size = strlen(rhs);
+	data.data = rhs;
+
+	if (bitset(MF_INCLNULL, map->map_mflags))
+	{
+		key.size++;
+		data.size++;
+	}
+
+	stat = db->put(db, &key, &data, R_NOOVERWRITE);
+	if (stat > 0)
+	{
+		if (!bitset(MF_APPEND, map->map_mflags))
+			message("050 Warning: duplicate alias name %s", lhs);
+		else
+		{
+			static char *buf = NULL;
+			static int bufsiz = 0;
+			DBT old;
+
+			old.data = db_map_lookup(map, key.data, NULL, &stat);
+			if (old.data != NULL)
+			{
+				old.size = strlen(old.data);
+				if (data.size + old.size + 2 > bufsiz)
+				{
+					if (buf != NULL)
+						(void) free(buf);
+					bufsiz = data.size + old.size + 2;
+					buf = xalloc(bufsiz);
+				}
+				snprintf(buf, bufsiz, "%s,%s",
+					data.data, old.data);
+				data.size = data.size + old.size + 1;
+				data.data = buf;
+				if (tTd(38, 9))
+					printf("db_map_store append=%s\n",
+					       (char *) data.data);
+			}
+		}
+		stat = db->put(db, &key, &data, 0);
+	}
+	if (stat != 0)
+		syserr("readaliases: db put (%s)", lhs);
+}
+
+
+/*
+**  DB_MAP_CLOSE -- add distinguished entries and close the database
+*/
+
+void
+db_map_close(map)
+	MAP *map;
+{
+	register DB *db = map->map_db2;
+
+	if (tTd(38, 9))
+		printf("db_map_close(%s, %s, %lx)\n",
+			map->map_mname, map->map_file, map->map_mflags);
+
+	if (bitset(MF_WRITABLE, map->map_mflags))
+	{
+		/* write out the distinguished alias */
+		db_map_store(map, "@", "@");
+	}
+
+#if OLD_NEWDB
+	(void) db->sync(db);
+#else
+	(void) db->sync(db, 0);
+#endif
+
+#if !LOCK_ON_OPEN
+	if (map->map_lockfd >= 0)
+		(void) close(map->map_lockfd);
+#endif
+
+	if (db->close(db) != 0)
+		syserr("readaliases: db close failure");
+}
+
+#endif
+/*
+**  NIS Modules
+*/
+
+# ifdef NIS
+
+# ifndef YPERR_BUSY
+#  define YPERR_BUSY	16
+# endif
+
+/*
+**  NIS_MAP_OPEN -- open DBM map
+*/
+
+bool
+nis_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	int yperr;
+	register char *p;
+	auto char *vp;
+	auto int vsize;
+
+	if (tTd(38, 2))
+		printf("nis_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	mode &= O_ACCMODE;
+	if (mode != O_RDONLY)
+	{
+		/* issue a pseudo-error message */
+#ifdef ENOSYS
+		errno = ENOSYS;
+#else
+# ifdef EFTYPE
+		errno = EFTYPE;
+# else
+		errno = ENXIO;
+# endif
+#endif
+		return FALSE;
+	}
+
+	p = strchr(map->map_file, '@');
+	if (p != NULL)
+	{
+		*p++ = '\0';
+		if (*p != '\0')
+			map->map_domain = p;
+	}
+
+	if (*map->map_file == '\0')
+		map->map_file = "mail.aliases";
+
+	if (map->map_domain == NULL)
+	{
+		yperr = yp_get_default_domain(&map->map_domain);
+		if (yperr != 0)
+		{
+			if (!bitset(MF_OPTIONAL, map->map_mflags))
+				syserr("421 NIS map %s specified, but NIS not running",
+					map->map_file);
+			return FALSE;
+		}
+	}
+
+	/* check to see if this map actually exists */
+	yperr = yp_match(map->map_domain, map->map_file, "@", 1,
+			&vp, &vsize);
+	if (tTd(38, 10))
+		printf("nis_map_open: yp_match(@, %s, %s) => %s\n",
+			map->map_domain, map->map_file, yperr_string(yperr));
+	if (yperr == 0 || yperr == YPERR_KEY || yperr == YPERR_BUSY)
+	{
+		/*
+		**  We ought to be calling aliaswait() here if this is an
+		**  alias file, but powerful HP-UX NIS servers  apparently
+		**  don't insert the @:@ token into the alias map when it
+		**  is rebuilt, so aliaswait() just hangs.  I hate HP-UX.
+		*/
+
+#if 0
+		if (!bitset(MF_ALIAS, map->map_mflags) ||
+		    aliaswait(map, NULL, TRUE))
+#endif
+			return TRUE;
+	}
+
+	if (!bitset(MF_OPTIONAL, map->map_mflags))
+	{
+		syserr("421 Cannot bind to map %s in domain %s: %s",
+			map->map_file, map->map_domain, yperr_string(yperr));
+	}
+
+	return FALSE;
+}
+
+
+/*
+**  NIS_MAP_LOOKUP -- look up a datum in a NIS map
+*/
+
+char *
+nis_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	char *vp;
+	auto int vsize;
+	int buflen;
+	int yperr;
+	char keybuf[MAXNAME + 1];
+
+	if (tTd(38, 20))
+		printf("nis_map_lookup(%s, %s)\n",
+			map->map_mname, name);
+
+	buflen = strlen(name);
+	if (buflen > sizeof keybuf - 1)
+		buflen = sizeof keybuf - 1;
+	bcopy(name, keybuf, buflen);
+	keybuf[buflen] = '\0';
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+		makelower(keybuf);
+	yperr = YPERR_KEY;
+	if (bitset(MF_TRY0NULL, map->map_mflags))
+	{
+		yperr = yp_match(map->map_domain, map->map_file, keybuf, buflen,
+			     &vp, &vsize);
+		if (yperr == 0)
+			map->map_mflags &= ~MF_TRY1NULL;
+	}
+	if (yperr == YPERR_KEY && bitset(MF_TRY1NULL, map->map_mflags))
+	{
+		buflen++;
+		yperr = yp_match(map->map_domain, map->map_file, keybuf, buflen,
+			     &vp, &vsize);
+		if (yperr == 0)
+			map->map_mflags &= ~MF_TRY0NULL;
+	}
+	if (yperr != 0)
+	{
+		if (yperr != YPERR_KEY && yperr != YPERR_BUSY)
+			map->map_mflags &= ~(MF_VALID|MF_OPEN);
+		return NULL;
+	}
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, name, strlen(name), NULL);
+	else
+		return map_rewrite(map, vp, vsize, av);
+}
+
+
+/*
+**  NIS_GETCANONNAME -- look up canonical name in NIS
+*/
+
+bool
+nis_getcanonname(name, hbsize, statp)
+	char *name;
+	int hbsize;
+	int *statp;
+{
+	char *vp;
+	auto int vsize;
+	int keylen;
+	int yperr;
+	static bool try0null = TRUE;
+	static bool try1null = TRUE;
+	static char *yp_domain = NULL;
+	char host_record[MAXLINE];
+	char cbuf[MAXNAME];
+	char nbuf[MAXNAME + 1];
+
+	if (tTd(38, 20))
+		printf("nis_getcanonname(%s)\n", name);
+
+	if (strlen(name) >= sizeof nbuf)
+	{
+		*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+	(void) strcpy(nbuf, name);
+	shorten_hostname(nbuf);
+	keylen = strlen(nbuf);
+
+	if (yp_domain == NULL)
+		yp_get_default_domain(&yp_domain);
+	makelower(nbuf);
+	yperr = YPERR_KEY;
+	if (try0null)
+	{
+		yperr = yp_match(yp_domain, "hosts.byname", nbuf, keylen,
+			     &vp, &vsize);
+		if (yperr == 0)
+			try1null = FALSE;
+	}
+	if (yperr == YPERR_KEY && try1null)
+	{
+		keylen++;
+		yperr = yp_match(yp_domain, "hosts.byname", nbuf, keylen,
+			     &vp, &vsize);
+		if (yperr == 0)
+			try0null = FALSE;
+	}
+	if (yperr != 0)
+	{
+		if (yperr == YPERR_KEY)
+			*statp = EX_NOHOST;
+		else if (yperr == YPERR_BUSY)
+			*statp = EX_TEMPFAIL;
+		else
+			*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+	if (vsize >= sizeof host_record)
+		vsize = sizeof host_record - 1;
+	strncpy(host_record, vp, vsize);
+	host_record[vsize] = '\0';
+	if (tTd(38, 44))
+		printf("got record `%s'\n", host_record);
+	if (!extract_canonname(nbuf, host_record, cbuf, sizeof cbuf))
+	{
+		/* this should not happen, but.... */
+		*statp = EX_NOHOST;
+		return FALSE;
+	}
+	if (hbsize < strlen(cbuf))
+	{
+		*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+	strcpy(name, cbuf);
+	*statp = EX_OK;
+	return TRUE;
+}
+
+#endif
+/*
+**  NISPLUS Modules
+**
+**	This code donated by Sun Microsystems.
+*/
+
+#ifdef NISPLUS
+
+#undef NIS		/* symbol conflict in nis.h */
+#undef T_UNSPEC		/* symbol conflict in nis.h -> ... -> sys/tiuser.h */
+#include <rpcsvc/nis.h>
+#include <rpcsvc/nislib.h>
+
+#define EN_col(col)	zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val
+#define COL_NAME(res,i)	((res->objects.objects_val)->TA_data.ta_cols.ta_cols_val)[i].tc_name
+#define COL_MAX(res)	((res->objects.objects_val)->TA_data.ta_cols.ta_cols_len)
+#define PARTIAL_NAME(x)	((x)[strlen(x) - 1] != '.')
+
+/*
+**  NISPLUS_MAP_OPEN -- open nisplus table
+*/
+
+bool
+nisplus_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	nis_result *res = NULL;
+	int retry_cnt, max_col, i;
+	char qbuf[MAXLINE + NIS_MAXNAMELEN];
+
+	if (tTd(38, 2))
+		printf("nisplus_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	mode &= O_ACCMODE;
+	if (mode != O_RDONLY)
+	{
+		errno = ENODEV;
+		return FALSE;
+	}
+
+	if (*map->map_file == '\0')
+		map->map_file = "mail_aliases.org_dir";
+
+	if (PARTIAL_NAME(map->map_file) && map->map_domain == NULL)
+	{
+		/* set default NISPLUS Domain to $m */
+		extern char *nisplus_default_domain();
+
+		map->map_domain = newstr(nisplus_default_domain());
+		if (tTd(38, 2))
+			printf("nisplus_map_open(%s): using domain %s\n",
+				 map->map_file, map->map_domain);
+	}
+	if (!PARTIAL_NAME(map->map_file))
+	{
+		map->map_domain = newstr("");
+		snprintf(qbuf, sizeof qbuf, "%s", map->map_file);
+	}
+	else
+	{
+		/* check to see if this map actually exists */
+		snprintf(qbuf, sizeof qbuf, "%s.%s",
+			map->map_file, map->map_domain);
+	}
+
+	retry_cnt = 0;
+	while (res == NULL || res->status != NIS_SUCCESS)
+	{
+		res = nis_lookup(qbuf, FOLLOW_LINKS);
+		switch (res->status)
+		{
+		  case NIS_SUCCESS:
+			break;
+
+		  case NIS_TRYAGAIN:
+		  case NIS_RPCERROR:
+		  case NIS_NAMEUNREACHABLE:
+			if (retry_cnt++ > 4)
+			{
+				errno = EBADR;
+				return FALSE;
+			}
+			/* try not to overwhelm hosed server */
+			sleep(2);
+			break;
+
+		  default:		/* all other nisplus errors */
+#if 0
+			if (!bitset(MF_OPTIONAL, map->map_mflags))
+				syserr("421 Cannot find table %s.%s: %s",
+					map->map_file, map->map_domain,
+					nis_sperrno(res->status));
+#endif
+			errno = EBADR;
+			return FALSE;
+		}
+	}
+
+	if (NIS_RES_NUMOBJ(res) != 1 ||
+	    (NIS_RES_OBJECT(res)->zo_data.zo_type != TABLE_OBJ))
+	{
+		if (tTd(38, 10))
+			printf("nisplus_map_open: %s is not a table\n", qbuf);
+#if 0
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("421 %s.%s: %s is not a table",
+				map->map_file, map->map_domain,
+				nis_sperrno(res->status));
+#endif
+		errno = EBADR;
+		return FALSE;
+	}
+	/* default key column is column 0 */
+	if (map->map_keycolnm == NULL)
+		map->map_keycolnm = newstr(COL_NAME(res,0));
+
+	max_col = COL_MAX(res);
+	
+	/* verify the key column exist */
+	for (i=0; i< max_col; i++)
+	{
+		if (!strcmp(map->map_keycolnm, COL_NAME(res,i)))
+			break;
+	}
+	if (i == max_col)
+	{
+		if (tTd(38, 2))
+			printf("nisplus_map_open(%s): can not find key column %s\n",
+				map->map_file, map->map_keycolnm);
+		errno = EBADR;
+		return FALSE;
+	}
+
+	/* default value column is the last column */
+	if (map->map_valcolnm == NULL)
+	{
+		map->map_valcolno = max_col - 1;
+		return TRUE;
+	}
+
+	for (i=0; i< max_col; i++)
+	{
+		if (strcmp(map->map_valcolnm, COL_NAME(res,i)) == 0)
+		{
+			map->map_valcolno = i;
+			return TRUE;
+		}
+	}
+
+	if (tTd(38, 2))
+		printf("nisplus_map_open(%s): can not find column %s\n",
+			 map->map_file, map->map_keycolnm);
+	errno = EBADR;
+	return FALSE;
+}
+
+
+/*
+**  NISPLUS_MAP_LOOKUP -- look up a datum in a NISPLUS table
+*/
+
+char *
+nisplus_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	char *p;
+	auto int vsize;
+	char *skp;
+	int skleft;
+	char search_key[MAXNAME + 4];
+	char qbuf[MAXLINE + NIS_MAXNAMELEN];
+	nis_result *result;
+
+	if (tTd(38, 20))
+		printf("nisplus_map_lookup(%s, %s)\n",
+			map->map_mname, name);
+
+	if (!bitset(MF_OPEN, map->map_mflags))
+	{
+		if (nisplus_map_open(map, O_RDONLY))
+			map->map_mflags |= MF_OPEN;
+		else
+		{
+			*statp = EX_UNAVAILABLE;
+			return NULL;
+		}
+	}
+		
+	/*
+	**  Copy the name to the key buffer, escaping double quote characters
+	**  by doubling them and quoting "]" and "," to avoid having the
+	**  NIS+ parser choke on them.
+	*/
+
+	skleft = sizeof search_key - 4;
+	skp = search_key;
+	for (p = name; *p != '\0' && skleft > 0; p++)
+	{
+		switch (*p)
+		{
+		  case ']':
+		  case ',':
+			/* quote the character */
+			*skp++ = '"';
+			*skp++ = *p;
+			*skp++ = '"';
+			skleft -= 3;
+			break;
+
+		  case '"':
+			/* double the quote */
+			*skp++ = '"';
+			skleft--;
+			/* fall through... */
+
+		  default:
+			*skp++ = *p;
+			skleft--;
+			break;
+		}
+	}
+	*skp = '\0';
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+		makelower(search_key);
+
+	/* construct the query */
+	if (PARTIAL_NAME(map->map_file))
+		snprintf(qbuf, sizeof qbuf, "[%s=%s],%s.%s",
+			map->map_keycolnm, search_key, map->map_file,
+			map->map_domain);
+	else
+		snprintf(qbuf, sizeof qbuf, "[%s=%s],%s",
+			map->map_keycolnm, search_key, map->map_file);
+
+	if (tTd(38, 20))
+		printf("qbuf=%s\n", qbuf);
+	result = nis_list(qbuf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+	if (result->status == NIS_SUCCESS)
+	{
+		int count;
+		char *str;
+
+		if ((count = NIS_RES_NUMOBJ(result)) != 1)
+		{
+			if (LogLevel > 10)
+				sm_syslog(LOG_WARNING, CurEnv->e_id,
+				  "%s: lookup error, expected 1 entry, got %d",
+				    map->map_file, count);
+
+			/* ignore second entry */
+			if (tTd(38, 20))
+				printf("nisplus_map_lookup(%s), got %d entries, additional entries ignored\n",
+					name, count);
+		}
+
+		p = ((NIS_RES_OBJECT(result))->EN_col(map->map_valcolno));
+		/* set the length of the result */
+		if (p == NULL)
+			p = "";
+		vsize = strlen(p);
+		if (tTd(38, 20))
+			printf("nisplus_map_lookup(%s), found %s\n",
+				name, p);
+		if (bitset(MF_MATCHONLY, map->map_mflags))
+			str = map_rewrite(map, name, strlen(name), NULL);
+		else
+			str = map_rewrite(map, p, vsize, av);
+		nis_freeresult(result);
+		*statp = EX_OK;
+		return str;
+	}
+	else
+	{
+		if (result->status == NIS_NOTFOUND)
+			*statp = EX_NOTFOUND;
+		else if (result->status == NIS_TRYAGAIN)
+			*statp = EX_TEMPFAIL;
+		else
+		{
+			*statp = EX_UNAVAILABLE;
+			map->map_mflags &= ~(MF_VALID|MF_OPEN);
+		}
+	}
+	if (tTd(38, 20))
+		printf("nisplus_map_lookup(%s), failed\n", name);
+	nis_freeresult(result);
+	return NULL;
+}
+
+
+
+/*
+**  NISPLUS_GETCANONNAME -- look up canonical name in NIS+
+*/
+
+bool
+nisplus_getcanonname(name, hbsize, statp)
+	char *name;
+	int hbsize;
+	int *statp;
+{
+	char *vp;
+	auto int vsize;
+	nis_result *result;
+	char *p;
+	char nbuf[MAXNAME + 1];
+	char qbuf[MAXLINE + NIS_MAXNAMELEN];
+
+	if (strlen(name) >= sizeof nbuf)
+	{
+		*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+	(void) strcpy(nbuf, name);
+	shorten_hostname(nbuf);
+
+	p = strchr(nbuf, '.');
+	if (p == NULL)
+	{
+		/* single token */
+		snprintf(qbuf, sizeof qbuf, "[name=%s],hosts.org_dir", nbuf);
+	}
+	else if (p[1] != '\0')
+	{
+		/* multi token -- take only first token in nbuf */
+		*p = '\0';
+		snprintf(qbuf, sizeof qbuf, "[name=%s],hosts.org_dir.%s",
+			nbuf, &p[1]);
+	}
+	else
+	{
+		*statp = EX_NOHOST;
+		return FALSE;
+	}
+
+	if (tTd(38, 20))
+		printf("\nnisplus_getcanoname(%s), qbuf=%s\n",
+			 name, qbuf);
+
+	result = nis_list(qbuf, EXPAND_NAME|FOLLOW_LINKS|FOLLOW_PATH,
+		NULL, NULL);
+
+	if (result->status == NIS_SUCCESS)
+	{
+		int count;
+		char *domain;
+
+		if ((count = NIS_RES_NUMOBJ(result)) != 1)
+		{
+			if (LogLevel > 10)
+				sm_syslog(LOG_WARNING, CurEnv->e_id,
+				       "nisplus_getcanonname: lookup error, expected 1 entry, got %d",
+				       count);
+
+			/* ignore second entry */
+			if (tTd(38, 20))
+				printf("nisplus_getcanoname(%s), got %d entries, all but first ignored\n",
+					name, count);
+		}
+
+		if (tTd(38, 20))
+			printf("nisplus_getcanoname(%s), found in directory \"%s\"\n",
+			       name, (NIS_RES_OBJECT(result))->zo_domain);
+
+
+		vp = ((NIS_RES_OBJECT(result))->EN_col(0));
+		vsize = strlen(vp);
+		if (tTd(38, 20))
+			printf("nisplus_getcanonname(%s), found %s\n",
+				name, vp);
+		if (strchr(vp, '.') != NULL)
+		{
+			domain = "";
+		}
+		else
+		{
+			domain = macvalue('m', CurEnv);
+			if (domain == NULL)
+				domain = "";
+		}
+		if (hbsize > vsize + (int) strlen(domain) + 1)
+		{
+			if (domain[0] == '\0')
+				strcpy(name, vp);
+			else
+				snprintf(name, hbsize, "%s.%s", vp, domain);
+			*statp = EX_OK;
+		}
+		else
+			*statp = EX_NOHOST;
+		nis_freeresult(result);
+		return TRUE;
+	}
+	else
+	{
+		if (result->status == NIS_NOTFOUND)
+			*statp = EX_NOHOST;
+		else if (result->status == NIS_TRYAGAIN)
+			*statp = EX_TEMPFAIL;
+		else
+			*statp = EX_UNAVAILABLE;
+	}
+	if (tTd(38, 20))
+		printf("nisplus_getcanonname(%s), failed, status=%d, nsw_stat=%d\n",
+			name, result->status, *statp);
+	nis_freeresult(result);
+	return FALSE;
+}
+
+
+char *
+nisplus_default_domain()
+{
+	static char default_domain[MAXNAME + 1] = "";
+	char *p;
+
+	if (default_domain[0] != '\0')
+		return(default_domain);
+	
+	p = nis_local_directory();
+	snprintf(default_domain, sizeof default_domain, "%s", p);
+	return default_domain;
+}
+
+#endif /* NISPLUS */
+/*
+**  LDAP Modules
+**
+**	Contributed by Booker C. Bense <bbense@networking.stanford.edu>.
+**	Get your support from him.
+*/
+
+#ifdef LDAPMAP
+
+# undef NEEDGETOPT		/* used for something else in LDAP */
+
+# include <lber.h>
+# include <ldap.h>
+# include "ldap_map.h"
+
+/*
+**  LDAP_MAP_OPEN -- open LDAP map
+**
+**	Since LDAP is TCP-based there is not much we can or should do
+**	here.  It might be a good idea to attempt an open/close here.
+*/
+
+bool
+ldap_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	if (tTd(38, 2))
+		printf("ldap_map_open(%s, %d)\n", map->map_mname, mode);
+
+	mode &= O_ACCMODE;
+	if (mode != O_RDONLY)
+	{
+		/* issue a pseudo-error message */
+#ifdef ENOSYS
+		errno = ENOSYS;
+#else
+# ifdef EFTYPE
+		errno = EFTYPE;
+# else
+		errno = ENXIO;
+# endif
+#endif
+		return FALSE;
+	}
+	return TRUE;
+}
+
+
+/*
+**  LDAP_MAP_START -- actually open LDAP map
+**
+**	Caching should be investigated.
+*/
+
+bool
+ldap_map_start(map)
+	MAP *map;
+{
+	LDAP_MAP_STRUCT *lmap;
+	LDAP *ld;
+
+	if (tTd(38, 2))
+		printf("ldap_map_start(%s)\n", map->map_mname);
+
+	lmap = (LDAP_MAP_STRUCT *) map->map_db1;
+
+	if (tTd(38,9))
+		printf("ldap_open(%s, %d)\n", lmap->ldaphost, lmap->ldapport);
+
+	if ((ld = ldap_open(lmap->ldaphost,lmap->ldapport)) == NULL)
+	{
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+		{
+			syserr("ldapopen failed to %s in map %s",
+				lmap->ldaphost, map->map_mname);
+		}
+		return FALSE;
+	}
+
+	ld->ld_deref = lmap->deref;
+	ld->ld_timelimit = lmap->timelimit;
+	ld->ld_sizelimit = lmap->sizelimit;
+	ld->ld_options = lmap->ldap_options;
+
+	if (ldap_bind_s(ld, lmap->binddn,lmap->passwd,lmap->method) != LDAP_SUCCESS)
+	{
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+		{
+			syserr("421 Cannot bind to map %s in ldap server %s",
+				map->map_mname, lmap->ldaphost);
+		}
+	}
+	else
+	{
+		/* We need to cast ld into the map structure */
+		lmap->ld = ld;
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+
+/*
+** LDAP_MAP_CLOSE -- close ldap map
+*/
+
+void
+ldap_map_close(map)
+	MAP *map;
+{
+	LDAP_MAP_STRUCT *lmap ;
+	lmap = (LDAP_MAP_STRUCT *) map->map_db1;
+	if (lmap->ld != NULL)
+		ldap_unbind(lmap->ld);
+}
+
+
+#ifdef SUNET_ID
+/*
+** SUNET_ID_HASH -- Convert a string to it's Sunet_id canonical form
+** This only makes sense at Stanford University.
+*/
+
+char *
+sunet_id_hash(str)
+	char *str;
+{
+	char *p, *p_last;
+
+	p = str;
+	p_last = p;
+	while (*p != '\0')
+	{
+		if (islower(*p) || isdigit(*p))
+		{
+			*p_last = *p;
+			p_last++;
+		}
+		else if (isupper(*p))
+		{
+			*p_last = tolower(*p);
+			p_last++;
+		}
+		++p;
+	}
+	if (*p_last != '\0')
+		*p_last = '\0';
+	return (str);
+}
+
+
+
+#endif /* SUNET_ID */
+/*
+** LDAP_MAP_LOOKUP -- look up a datum in a LDAP map
+*/
+
+char *
+ldap_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	LDAP_MAP_STRUCT *lmap = NULL;
+	LDAPMessage *entry;
+	char *vp;
+	auto int vsize;
+	char keybuf[MAXNAME + 1];
+	char filter[LDAP_MAP_MAX_FILTER + 1];
+	char **attr_values = NULL;
+	char *result;
+	int name_len;
+
+	if (tTd(38, 20))
+		printf("ldap_map_lookup(%s, %s)\n", map->map_mname, name);
+
+	/* actually open the map */
+	if (!ldap_map_start(map))
+	{
+		result = NULL;
+		*statp = EX_TEMPFAIL;
+		goto quick_exit;
+	}
+
+	/* Get ldap struct pointer from map */
+	lmap = (LDAP_MAP_STRUCT *) map->map_db1;
+
+	name_len = strlen(name);
+	if (name_len > MAXNAME)
+		name_len = MAXNAME;
+	strncpy(keybuf, name, name_len);
+	keybuf[name_len] = '\0';
+
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+#ifdef SUNET_ID
+		sunet_id_hash(keybuf);
+#else
+		makelower(keybuf);
+#endif /*SUNET_ID */
+
+	/* sprintf keybuf into filter */
+	snprintf(filter, sizeof filter, lmap->filter, keybuf);
+
+	if (ldap_search_st(lmap->ld, lmap->base,lmap->scope,filter,
+			   lmap->attr, lmap->attrsonly, &(lmap->timeout),
+			   &(lmap->res)) != LDAP_SUCCESS)
+	{
+		/* try close/opening map */
+		ldap_map_close(map);
+		if (!ldap_map_start(map))
+		{
+			result = NULL;
+			*statp = EX_TEMPFAIL;
+			goto quick_exit;
+		}
+		if (ldap_search_st(lmap->ld, lmap->base, lmap->scope, filter,
+				   lmap->attr, lmap->attrsonly,
+				   &(lmap->timeout), &(lmap->res))
+			!= LDAP_SUCCESS)
+		{
+			if (!bitset(MF_OPTIONAL, map->map_mflags))
+			{
+				syserr("Error in ldap_search_st using %s in map %s",
+					filter, map->map_mname);
+			}
+			result = NULL;
+			*statp = EX_TEMPFAIL;
+			goto quick_exit;
+		}
+	}
+
+	entry = ldap_first_entry(lmap->ld,lmap->res);
+	if (entry == NULL)
+	{
+	        result = NULL;
+		*statp = EX_NOTFOUND;
+		goto quick_exit;
+	}
+
+	/* Need to build the args for map_rewrite here */
+	attr_values = ldap_get_values(lmap->ld,entry,lmap->attr[0]);
+	if (attr_values == NULL)
+	{
+		/* bad things happened */
+		result = NULL;
+		*statp = EX_NOTFOUND;
+		goto quick_exit;
+	}
+
+	*statp = EX_OK;
+
+	/* If there is more that one use the first */
+	vp = attr_values[0];
+	vsize = strlen(vp);
+
+	if (LogLevel > 9)
+		sm_syslog(LOG_INFO, CurEnv->e_id,
+			"ldap %.100s => %s",
+			name, vp);
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		result = map_rewrite(map, name, strlen(name), NULL);
+	else
+		result = map_rewrite(map, vp, vsize, av);
+
+  quick_exit:
+	if (attr_values != NULL)
+		ldap_value_free(attr_values);
+	if (lmap != NULL)
+		ldap_msgfree(lmap->res);
+	ldap_map_close(map);
+	return result ;
+}
+
+
+/*
+** LDAP_MAP_DEQUOTE - helper routine for ldap_map_parseargs
+*/
+
+char *
+ldap_map_dequote(str)
+	char *str;
+{
+	char *p;
+	char *start;
+	p = str;
+
+	if (*p == '"')
+	{
+		start = ++p;
+		/* Should probably swallow initial whitespace here */
+	}
+	else
+	{
+		return(str);
+	}
+	while (*p != '"' && *p != '\0')
+	{
+		p++;
+	}
+	if (*p != '\0')
+		*p = '\0';
+	return start;
+}
+
+/*
+** LDAP_MAP_PARSEARGS -- parse ldap map definition args.
+*/
+
+bool
+ldap_map_parseargs(map,args)
+	MAP *map;
+	char *args;
+{
+	register char *p = args;
+	register int done;
+	LDAP_MAP_STRUCT *lmap;
+
+	/* We need to alloc an LDAP_MAP_STRUCT struct */
+	lmap  = (LDAP_MAP_STRUCT *) xalloc(sizeof(LDAP_MAP_STRUCT));
+
+	/* Set default int's here , default strings below */
+	lmap->ldapport =  DEFAULT_LDAP_MAP_PORT;
+	lmap->deref = DEFAULT_LDAP_MAP_DEREF;
+	lmap->timelimit = DEFAULT_LDAP_MAP_TIMELIMIT;
+	lmap->sizelimit = DEFAULT_LDAP_MAP_SIZELIMIT;
+	lmap->ldap_options = DEFAULT_LDAP_MAP_LDAP_OPTIONS;
+	lmap->method = DEFAULT_LDAP_MAP_METHOD;
+	lmap->scope = DEFAULT_LDAP_MAP_SCOPE;
+	lmap->attrsonly = DEFAULT_LDAP_MAP_ATTRSONLY;
+	lmap->timeout.tv_sec = DEFAULT_LDAP_MAP_TIMELIMIT;
+	lmap->timeout.tv_usec = 0;
+
+	/* Default char ptrs to NULL */
+	lmap->binddn = NULL;
+	lmap->passwd = NULL;
+	lmap->base   = NULL;
+	lmap->ldaphost = NULL;
+	map->map_mflags |= MF_TRY0NULL | MF_TRY1NULL;
+	for (;;)
+	{
+		while (isascii(*p) && isspace(*p))
+			p++;
+		if (*p != '-')
+			break;
+		switch (*++p)
+		{
+		  case 'N':
+			map->map_mflags |= MF_INCLNULL;
+			map->map_mflags &= ~MF_TRY0NULL;
+			break;
+
+		  case 'O':
+			map->map_mflags &= ~MF_TRY1NULL;
+			break;
+
+		  case 'o':
+			map->map_mflags |= MF_OPTIONAL;
+			break;
+
+		  case 'f':
+			map->map_mflags |= MF_NOFOLDCASE;
+			break;
+
+		  case 'm':
+			map->map_mflags |= MF_MATCHONLY;
+			break;
+
+		  case 'A':
+			map->map_mflags |= MF_APPEND;
+			break;
+
+		  case 'q':
+			map->map_mflags |= MF_KEEPQUOTES;
+			break;
+
+		  case 't':
+			map->map_mflags |= MF_NODEFER;
+			break;
+
+		  case 'a':
+			map->map_app = ++p;
+			break;
+
+			/* Start of ldap_map specific args */
+		  case 'k':		/* search field */
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			lmap->filter = p;
+			break;
+
+		  case 'v':		/* attr to return */
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			lmap->attr[0] = p;
+			lmap->attr[1] = NULL;
+			break;
+
+			/* args stolen from ldapsearch.c */
+		  case 'R':		/* don't auto chase referrals */
+#ifdef LDAP_REFERRALS
+			lmap->ldap_options &= ~LDAP_OPT_REFERRALS;
+#else  /* LDAP_REFERRALS */
+			syserr("compile with -DLDAP_REFERRALS for referral support\n");
+#endif /* LDAP_REFERRALS */
+			break;
+
+		  case 'n':		/* retrieve attribute names only -- no values */
+			lmap->attrsonly += 1;
+			break;
+
+		  case 's':		/* search scope */
+			if (strncasecmp(p, "base", 4) == 0)
+			{
+				lmap->scope = LDAP_SCOPE_BASE;
+			}
+			else if (strncasecmp(p, "one", 3) == 0)
+			{
+				lmap->scope = LDAP_SCOPE_ONELEVEL;
+			}
+			else if (strncasecmp(p, "sub", 3) == 0)
+			{
+				lmap->scope = LDAP_SCOPE_SUBTREE;
+			}
+			else
+			{		/* bad config line */
+				if (!bitset(MCF_OPTFILE, map->map_class->map_cflags))
+				{
+					syserr("Scope must be [base|one|sub] not %s in map %s",
+						p, map->map_mname);
+					return FALSE;
+				}
+			}
+			break;
+
+		  case 'h':		/* ldap host */
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			map->map_domain = p;
+			lmap->ldaphost = p;
+			break;
+
+		  case 'b':		/* search base */
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			lmap->base = p;
+			break;
+
+		  case 'p':		/* ldap port */
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			lmap->ldapport = atoi(p);
+			break;
+
+		  case 'l':		/* time limit */
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			lmap->timelimit = atoi(p);
+			break;
+
+		}
+
+		/* need to account for quoted strings here arggg... */
+		done =  isascii(*p) && isspace(*p);
+		while (*p != '\0' && !done)
+		{
+			if (*p == '"')
+			{
+				while (*++p != '"' && *p != '\0')
+				{
+					continue;
+				}
+				if (*p != '\0')
+					p++;
+			}
+			else
+			{
+				p++;
+			}
+			done = isascii(*p) && isspace(*p);
+		}
+
+		if (*p != '\0')
+			*p++ = '\0';
+	}
+
+	if (map->map_app != NULL)
+		map->map_app = newstr(ldap_map_dequote(map->map_app));
+
+	if (map->map_domain != NULL)
+		map->map_domain = newstr(ldap_map_dequote(map->map_domain));
+
+	/*
+	** We need to swallow up all the stuff into a struct
+	** and dump it into map->map_dbptr1
+	*/
+
+	if (lmap->ldaphost != NULL)
+		lmap->ldaphost = newstr(ldap_map_dequote(lmap->ldaphost));
+	else
+	{
+		syserr("LDAP map: -h flag is required");
+		return FALSE;
+	}
+
+	if (lmap->binddn != NULL)
+		lmap->binddn = newstr(ldap_map_dequote(lmap->binddn));
+	else
+		lmap->binddn = DEFAULT_LDAP_MAP_BINDDN;
+
+
+	if (lmap->passwd != NULL)
+		lmap->passwd = newstr(ldap_map_dequote(lmap->passwd));
+	else
+		lmap->passwd = DEFAULT_LDAP_MAP_PASSWD;
+
+	if (lmap->base != NULL)
+		lmap->base = newstr(ldap_map_dequote(lmap->base));
+	else
+	{
+		syserr("LDAP map: -b flag is required");
+		return FALSE;
+	}
+
+
+	if (lmap->filter != NULL)
+		lmap->filter = newstr(ldap_map_dequote(lmap->filter));
+	else
+	{
+		if (!bitset(MCF_OPTFILE, map->map_class->map_cflags))
+		{
+			syserr("No filter given in map %s", map->map_mname);
+			return FALSE;
+		}
+	}
+	if (lmap->attr[0] != NULL)
+		lmap->attr[0] = newstr(ldap_map_dequote(lmap->attr[0]));
+	else
+	{
+		if (!bitset(MCF_OPTFILE, map->map_class->map_cflags))
+		{
+			syserr("No return attribute in %s", map->map_mname);
+			return FALSE;
+		}
+	}
+
+	map->map_db1 = (ARBPTR_T) lmap;
+	return TRUE;
+}
+
+#endif /* LDAP Modules */
+/*
+** syslog map
+*/
+
+#if _FFR_SYSLOG_MAP
+
+#define map_prio	map_lockfd	/* overload field */
+
+/*
+** SYSLOG_MAP_PARSEARGS -- check for priority level to syslog messages.
+*/
+
+bool
+syslog_map_parseargs(map, args)
+	MAP *map;
+	char *args;
+{
+	char *p = args;
+	char *priority = NULL;
+
+	for (;;)
+	{
+		while (isascii(*p) && isspace(*p))
+			p++;
+		if (*p != '-')
+			break;
+		if (*++p == 'L')
+			priority = ++p;
+		while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+			p++;
+		if (*p != '\0')
+			*p++ = '\0';
+	}
+
+	if (priority == NULL)
+		map->map_prio = LOG_INFO;
+	else
+	{
+		if (strncasecmp("LOG_", priority, 4) == 0)
+			priority += 4;
+		
+#ifdef LOG_EMERG
+		if (strcasecmp("EMERG", priority) == 0)
+			map->map_prio = LOG_EMERG;
+		else
+#endif
+#ifdef LOG_ALERT
+		if (strcasecmp("ALERT", priority) == 0)
+			map->map_prio = LOG_ALERT;
+		else
+#endif
+#ifdef LOG_CRIT
+		if (strcasecmp("CRIT", priority) == 0)
+			map->map_prio = LOG_CRIT;
+		else
+#endif
+#ifdef LOG_ERR
+		if (strcasecmp("ERR", priority) == 0)
+			map->map_prio = LOG_ERR;
+		else
+#endif
+#ifdef LOG_WARNING
+		if (strcasecmp("WARNING", priority) == 0)
+			map->map_prio = LOG_WARNING;
+		else
+#endif
+#ifdef LOG_NOTICE
+		if (strcasecmp("NOTICE", priority) == 0)
+			map->map_prio = LOG_NOTICE;
+		else
+#endif
+#ifdef LOG_INFO
+		if (strcasecmp("INFO", priority) == 0)
+			map->map_prio = LOG_INFO;
+		else
+#endif
+#ifdef LOG_DEBUG
+		if (strcasecmp("DEBUG", priority) == 0)
+			map->map_prio = LOG_DEBUG;
+		else
+#endif
+		{
+			syserr("syslog_map_parseargs: Unknown priority %s\n",
+			       priority);
+			return FALSE;
+		}
+	}
+	return TRUE;
+}
+
+/*
+** SYSLOG_MAP_LOOKUP -- rewrite and syslog message.  Always return empty string
+*/
+
+char *
+syslog_map_lookup(map, string, args, statp)
+	MAP *map;
+	char *string;
+	char **args;
+	int *statp;
+{
+	char *ptr = map_rewrite(map, string, strlen(string), args);
+
+	if (ptr != NULL)
+	{
+		if (tTd(38, 20))
+			printf("syslog_map_lookup(%s (priority %d): %s\n",
+			       map->map_mname, map->map_prio, ptr);
+
+		sm_syslog(map->map_prio, CurEnv->e_id, "%s", ptr);
+	}
+	
+	*statp = EX_OK;
+	return "";
+}
+
+#endif /* _FFR_SYSLOG_MAP */
+/*
+**  HESIOD Modules
+*/
+
+#ifdef HESIOD
+
+#include <hesiod.h>
+
+bool
+hes_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	if (tTd(38, 2))
+		printf("hes_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	if (mode != O_RDONLY)
+	{
+		/* issue a pseudo-error message */
+#ifdef ENOSYS
+		errno = ENOSYS;
+#else
+# ifdef EFTYPE
+		errno = EFTYPE;
+# else
+		errno = ENXIO;
+# endif
+#endif
+		return FALSE;
+	}
+
+	if (hes_error() == HES_ER_UNINIT)
+		hes_init();
+	switch (hes_error())
+	{
+	  case HES_ER_OK:
+	  case HES_ER_NOTFOUND:
+		return TRUE;
+	}
+
+	if (!bitset(MF_OPTIONAL, map->map_mflags))
+		syserr("421 cannot initialize Hesiod map (%d)", hes_error());
+
+	return FALSE;
+}
+
+char *
+hes_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	char **hp;
+
+	if (tTd(38, 20))
+		printf("hes_map_lookup(%s, %s)\n", map->map_file, name);
+
+	if (name[0] == '\\')
+	{
+		char *np;
+		int nl;
+		char nbuf[MAXNAME];
+
+		nl = strlen(name);
+		if (nl < sizeof nbuf - 1)
+			np = nbuf;
+		else
+			np = xalloc(strlen(name) + 2);
+		np[0] = '\\';
+		strcpy(&np[1], name);
+		hp = hes_resolve(np, map->map_file);
+		if (np != nbuf)
+			free(np);
+	}
+	else
+	{
+		hp = hes_resolve(name, map->map_file);
+	}
+	if (hp == NULL || hp[0] == NULL)
+	{
+		switch (hes_error())
+		{
+		  case HES_ER_OK:
+			*statp = EX_OK;
+			break;
+
+		  case HES_ER_NOTFOUND:
+			*statp = EX_NOTFOUND;
+			break;
+
+		  case HES_ER_CONFIG:
+			*statp = EX_UNAVAILABLE;
+			break;
+
+		  case HES_ER_NET:
+			*statp = EX_TEMPFAIL;
+			break;
+		}
+		return NULL;
+	}
+	
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, name, strlen(name), NULL);
+	else
+		return map_rewrite(map, hp[0], strlen(hp[0]), av);
+}
+
+#endif
+/*
+**  NeXT NETINFO Modules
+*/
+
+#if NETINFO
+
+# define NETINFO_DEFAULT_DIR		"/aliases"
+# define NETINFO_DEFAULT_PROPERTY	"members"
+
+extern char	*ni_propval __P((char *, char *, char *, char *, int));
+
+
+/*
+**  NI_MAP_OPEN -- open NetInfo Aliases
+*/
+
+bool
+ni_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	char *p;
+
+	if (tTd(38, 2))
+		printf("ni_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+	mode &= O_ACCMODE;
+
+	if (*map->map_file == '\0')
+		map->map_file = NETINFO_DEFAULT_DIR;
+
+	if (map->map_valcolnm == NULL)
+		map->map_valcolnm = NETINFO_DEFAULT_PROPERTY;
+
+	if (map->map_coldelim == '\0' && bitset(MF_ALIAS, map->map_mflags))
+		map->map_coldelim = ',';
+
+	return TRUE;
+}
+
+
+/*
+**  NI_MAP_LOOKUP -- look up a datum in NetInfo
+*/
+
+char *
+ni_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	char *res;
+	char *propval;
+
+	if (tTd(38, 20))
+		printf("ni_map_lookup(%s, %s)\n", map->map_mname, name);
+
+	propval = ni_propval(map->map_file, map->map_keycolnm, name,
+			     map->map_valcolnm, map->map_coldelim);
+
+	if (propval == NULL)
+		return NULL;
+
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		res = map_rewrite(map, name, strlen(name), NULL);
+	else
+		res = map_rewrite(map, propval, strlen(propval), av);
+	free(propval);
+	return res;
+}
+
+
+bool
+ni_getcanonname(name, hbsize, statp)
+	char *name;
+	int hbsize;
+	int *statp;
+{
+	char *vptr;
+	char nbuf[MAXNAME + 1];
+
+	if (tTd(38, 20))
+		printf("ni_getcanonname(%s)\n", name);
+
+	if (strlen(name) >= sizeof nbuf)
+	{
+		*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+	(void) strcpy(nbuf, name);
+	shorten_hostname(nbuf);
+
+	/* we only accept single token search key */
+	if (strchr(nbuf, '.'))
+	{
+		*statp = EX_NOHOST;
+		return FALSE;
+	}
+
+	/* Do the search */
+	vptr = ni_propval("/machines", NULL, nbuf, "name", '\0');
+
+	if (vptr == NULL)
+	{
+		*statp = EX_NOHOST;
+		return FALSE;
+	}
+
+	if (hbsize >= strlen(vptr))
+	{
+		strcpy(name, vptr);
+		*statp = EX_OK;
+		return TRUE;
+	}
+	*statp = EX_UNAVAILABLE;
+	free(vptr);
+	return FALSE;
+}
+
+
+/*
+**  NI_PROPVAL -- NetInfo property value lookup routine
+**
+**	Parameters:
+**		keydir -- the NetInfo directory name in which to search
+**			for the key.
+**		keyprop -- the name of the property in which to find the
+**			property we are interested.  Defaults to "name".
+**		keyval -- the value for which we are really searching.
+**		valprop -- the property name for the value in which we
+**			are interested.
+**		sepchar -- if non-nil, this can be multiple-valued, and
+**			we should return a string separated by this
+**			character.
+**
+**	Returns:
+**		NULL -- if:
+**			1. the directory is not found
+**			2. the property name is not found
+**			3. the property contains multiple values
+**			4. some error occured
+**		else -- the value of the lookup.
+**
+**	Example:
+**		To search for an alias value, use:
+**		  ni_propval("/aliases", "name", aliasname, "members", ',')
+**
+**	Notes:
+**      	Caller should free the return value of ni_proval
+*/
+
+# include <netinfo/ni.h>
+
+# define LOCAL_NETINFO_DOMAIN    "."
+# define PARENT_NETINFO_DOMAIN   ".."
+# define MAX_NI_LEVELS           256
+
+char *
+ni_propval(keydir, keyprop, keyval, valprop, sepchar)
+	char *keydir;
+	char *keyprop;
+	char *keyval;
+	char *valprop;
+	int sepchar;
+{
+	char *propval = NULL;
+	int i;
+	int j, alen;
+	void *ni = NULL;
+	void *lastni = NULL;
+	ni_status nis;
+	ni_id nid;
+	ni_namelist ninl;
+	register char *p;
+	char keybuf[1024];
+
+	/*
+	**  Create the full key from the two parts.
+	**
+	**	Note that directory can end with, e.g., "name=" to specify
+	**	an alternate search property.
+	*/
+
+	i = strlen(keydir) + strlen(keyval) + 2;
+	if (keyprop != NULL)
+		i += strlen(keyprop) + 1;
+	if (i > sizeof keybuf)
+		return NULL;
+	strcpy(keybuf, keydir);
+	strcat(keybuf, "/");
+	if (keyprop != NULL)
+	{
+		strcat(keybuf, keyprop);
+		strcat(keybuf, "=");
+	}
+	strcat(keybuf, keyval);
+
+	if (tTd(38, 21))
+		printf("ni_propval(%s, %s, %s, %s, %d) keybuf='%s'\n",
+			keydir, keyprop, keyval, valprop, sepchar, keybuf);
+	/*
+	**  If the passed directory and property name are found
+	**  in one of netinfo domains we need to search (starting
+	**  from the local domain moving all the way back to the
+	**  root domain) set propval to the property's value
+	**  and return it.
+	*/
+
+	for (i = 0; i < MAX_NI_LEVELS && propval == NULL; i++)
+	{
+		if (i == 0)
+		{
+			nis = ni_open(NULL, LOCAL_NETINFO_DOMAIN, &ni);
+			if (tTd(38, 20))
+				printf("ni_open(LOCAL) = %d\n", nis);
+		}
+		else
+		{
+			if (lastni != NULL)
+				ni_free(lastni);
+			lastni = ni;
+			nis = ni_open(lastni, PARENT_NETINFO_DOMAIN, &ni);
+			if (tTd(38, 20))
+				printf("ni_open(PARENT) = %d\n", nis);
+		}
+
+		/*
+		**  Don't bother if we didn't get a handle on a
+		**  proper domain.  This is not necessarily an error.
+		**  We would get a positive ni_status if, for instance
+		**  we never found the directory or property and tried
+		**  to open the parent of the root domain!
+		*/
+
+		if (nis != 0)
+			break;
+
+		/*
+		**  Find the path to the server information.
+		*/
+
+		if (ni_pathsearch(ni, &nid, keybuf) != 0)
+			continue;
+
+		/*
+		**  Find associated value information.
+		*/
+
+		if (ni_lookupprop(ni, &nid, valprop, &ninl) != 0)
+			continue;
+
+		if (tTd(38, 20))
+			printf("ni_lookupprop: len=%d\n", ninl.ni_namelist_len);
+		/*
+		**  See if we have an acceptable number of values.
+		*/
+
+		if (ninl.ni_namelist_len <= 0)
+			continue;
+
+		if (sepchar == '\0' && ninl.ni_namelist_len > 1)
+		{
+			ni_namelist_free(&ninl);
+			continue;
+		}
+
+		/*
+		**  Calculate number of bytes needed and build result
+		*/
+
+		alen = 1;
+		for (j = 0; j < ninl.ni_namelist_len; j++)
+			alen += strlen(ninl.ni_namelist_val[j]) + 1;
+		propval = p = xalloc(alen);
+		for (j = 0; j < ninl.ni_namelist_len; j++)
+		{
+			strcpy(p, ninl.ni_namelist_val[j]);
+			p += strlen(p);
+			*p++ = sepchar;
+		}
+		*--p = '\0';
+
+		ni_namelist_free(&ninl);
+	}
+
+	/*
+	**  Clean up.
+	*/
+
+	if (ni != NULL)
+		ni_free(ni);
+	if (lastni != NULL && ni != lastni)
+		ni_free(lastni);
+	if (tTd(38, 20))
+		printf("ni_propval returns: '%s'\n", propval);
+
+	return propval;
+}
+
+#endif
+/*
+**  TEXT (unindexed text file) Modules
+**
+**	This code donated by Sun Microsystems.
+*/
+
+#define map_sff		map_lockfd	/* overload field */
+
+
+/*
+**  TEXT_MAP_OPEN -- open text table
+*/
+
+bool
+text_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	int sff;
+	int i;
+
+	if (tTd(38, 2))
+		printf("text_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	mode &= O_ACCMODE;
+	if (mode != O_RDONLY)
+	{
+		errno = ENODEV;
+		return FALSE;
+	}
+
+	if (*map->map_file == '\0')
+	{
+		syserr("text map \"%s\": file name required",
+			map->map_mname);
+		return FALSE;
+	}
+
+	if (map->map_file[0] != '/')
+	{
+		syserr("text map \"%s\": file name must be fully qualified",
+			map->map_mname);
+		return FALSE;
+	}
+
+	sff = SFF_ROOTOK|SFF_REGONLY|SFF_NOWLINK;
+	if (FatalWritableDirs)
+		sff |= SFF_SAFEDIRPATH;
+	if ((i = safefile(map->map_file, RunAsUid, RunAsGid, RunAsUserName,
+			  sff, S_IRUSR, NULL)) != 0)
+	{
+		/* cannot open this map */
+		if (tTd(38, 2))
+			printf("\tunsafe map file: %d\n", i);
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("text map \"%s\": unsafe map file %s",
+				map->map_mname, map->map_file);
+		return FALSE;
+	}
+
+	if (map->map_keycolnm == NULL)
+		map->map_keycolno = 0;
+	else
+	{
+		if (!isdigit(*map->map_keycolnm))
+		{
+			syserr("text map \"%s\", file %s: -k should specify a number, not %s",
+				map->map_mname, map->map_file,
+				map->map_keycolnm);
+			return FALSE;
+		}
+		map->map_keycolno = atoi(map->map_keycolnm);
+	}
+
+	if (map->map_valcolnm == NULL)
+		map->map_valcolno = 0;
+	else
+	{
+		if (!isdigit(*map->map_valcolnm))
+		{
+			syserr("text map \"%s\", file %s: -v should specify a number, not %s",
+					map->map_mname, map->map_file,
+					map->map_valcolnm);
+			return FALSE;
+		}
+		map->map_valcolno = atoi(map->map_valcolnm);
+	}
+
+	if (tTd(38, 2))
+	{
+		printf("text_map_open(%s, %s): delimiter = ",
+			map->map_mname, map->map_file);
+		if (map->map_coldelim == '\0')
+			printf("(white space)\n");
+		else
+			printf("%c\n", map->map_coldelim);
+	}
+
+	map->map_sff = sff;
+	return TRUE;
+}
+
+
+/*
+**  TEXT_MAP_LOOKUP -- look up a datum in a TEXT table
+*/
+
+char *
+text_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	char *vp;
+	auto int vsize;
+	int buflen;
+	FILE *f;
+	char delim;
+	int key_idx;
+	bool found_it;
+	int sff = map->map_sff;
+	char search_key[MAXNAME + 1];
+	char linebuf[MAXLINE];
+	char buf[MAXNAME + 1];
+	extern char *get_column __P((char *, int, char, char *, int));
+
+	found_it = FALSE;
+	if (tTd(38, 20))
+		printf("text_map_lookup(%s, %s)\n", map->map_mname,  name);
+
+	buflen = strlen(name);
+	if (buflen > sizeof search_key - 1)
+		buflen = sizeof search_key - 1;
+	bcopy(name, search_key, buflen);
+	search_key[buflen] = '\0';
+	if (!bitset(MF_NOFOLDCASE, map->map_mflags))
+		makelower(search_key);
+
+	f = safefopen(map->map_file, O_RDONLY, FileMode, sff);
+	if (f == NULL)
+	{
+		map->map_mflags &= ~(MF_VALID|MF_OPEN);
+		*statp = EX_UNAVAILABLE;
+		return NULL;
+	}
+	key_idx = map->map_keycolno;
+	delim = map->map_coldelim;
+	while (fgets(linebuf, MAXLINE, f) != NULL)
+	{
+		char *p;
+
+		/* skip comment line */
+		if (linebuf[0] == '#')
+			continue;
+		p = strchr(linebuf, '\n');
+		if (p != NULL)
+			*p = '\0';
+		p = get_column(linebuf, key_idx, delim, buf, sizeof buf);
+		if (p != NULL && strcasecmp(search_key, p) == 0)
+		{
+			found_it = TRUE;
+			break;
+		}
+	}
+	fclose(f);
+	if (!found_it)
+	{
+		*statp = EX_NOTFOUND;
+		return NULL;
+	}
+	vp = get_column(linebuf, map->map_valcolno, delim, buf, sizeof buf);
+	vsize = strlen(vp);
+	*statp = EX_OK;
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, name, strlen(name), NULL);
+	else
+		return map_rewrite(map, vp, vsize, av);
+}
+
+
+/*
+**  TEXT_GETCANONNAME -- look up canonical name in hosts file
+*/
+
+bool
+text_getcanonname(name, hbsize, statp)
+	char *name;
+	int hbsize;
+	int *statp;
+{
+	bool found;
+	FILE *f;
+	char linebuf[MAXLINE];
+	char cbuf[MAXNAME + 1];
+	char nbuf[MAXNAME + 1];
+
+	if (tTd(38, 20))
+		printf("text_getcanonname(%s)\n", name);
+
+	if (strlen(name) >= (SIZE_T) sizeof nbuf)
+	{
+		*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+	(void) strcpy(nbuf, name);
+	shorten_hostname(nbuf);
+
+	f = fopen(HostsFile, "r");
+	if (f == NULL)
+	{
+		*statp = EX_UNAVAILABLE;
+		return FALSE;
+	}
+	found = FALSE;
+	while (!found && fgets(linebuf, MAXLINE, f) != NULL)
+	{
+		char *p = strpbrk(linebuf, "#\n");
+
+		if (p != NULL)
+			*p = '\0';
+		if (linebuf[0] != '\0')
+			found = extract_canonname(nbuf, linebuf, cbuf, sizeof cbuf);
+	}
+	fclose(f);
+	if (!found)
+	{
+		*statp = EX_NOHOST;
+		return FALSE;
+	}
+
+	if ((SIZE_T) hbsize >= strlen(cbuf))
+	{
+		strcpy(name, cbuf);
+		*statp = EX_OK;
+		return TRUE;
+	}
+	*statp = EX_UNAVAILABLE;
+	return FALSE;
+}
+/*
+**  STAB (Symbol Table) Modules
+*/
+
+
+/*
+**  STAB_MAP_LOOKUP -- look up alias in symbol table
+*/
+
+char *
+stab_map_lookup(map, name, av, pstat)
+	register MAP *map;
+	char *name;
+	char **av;
+	int *pstat;
+{
+	register STAB *s;
+
+	if (tTd(38, 20))
+		printf("stab_lookup(%s, %s)\n",
+			map->map_mname, name);
+
+	s = stab(name, ST_ALIAS, ST_FIND);
+	if (s != NULL)
+		return (s->s_alias);
+	return (NULL);
+}
+
+
+/*
+**  STAB_MAP_STORE -- store in symtab (actually using during init, not rebuild)
+*/
+
+void
+stab_map_store(map, lhs, rhs)
+	register MAP *map;
+	char *lhs;
+	char *rhs;
+{
+	register STAB *s;
+
+	s = stab(lhs, ST_ALIAS, ST_ENTER);
+	s->s_alias = newstr(rhs);
+}
+
+
+/*
+**  STAB_MAP_OPEN -- initialize (reads data file)
+**
+**	This is a wierd case -- it is only intended as a fallback for
+**	aliases.  For this reason, opens for write (only during a
+**	"newaliases") always fails, and opens for read open the
+**	actual underlying text file instead of the database.
+*/
+
+bool
+stab_map_open(map, mode)
+	register MAP *map;
+	int mode;
+{
+	FILE *af;
+	int sff;
+	struct stat st;
+
+	if (tTd(38, 2))
+		printf("stab_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	mode &= O_ACCMODE;
+	if (mode != O_RDONLY)
+	{
+		errno = ENODEV;
+		return FALSE;
+	}
+
+	sff = SFF_ROOTOK|SFF_REGONLY|SFF_NOWLINK;
+	if (FatalWritableDirs)
+		sff |= SFF_SAFEDIRPATH;
+	af = safefopen(map->map_file, O_RDONLY, 0444, sff);
+	if (af == NULL)
+		return FALSE;
+	readaliases(map, af, FALSE, FALSE);
+
+	if (fstat(fileno(af), &st) >= 0)
+		map->map_mtime = st.st_mtime;
+	fclose(af);
+
+	return TRUE;
+}
+/*
+**  Implicit Modules
+**
+**	Tries several types.  For back compatibility of aliases.
+*/
+
+
+/*
+**  IMPL_MAP_LOOKUP -- lookup in best open database
+*/
+
+char *
+impl_map_lookup(map, name, av, pstat)
+	MAP *map;
+	char *name;
+	char **av;
+	int *pstat;
+{
+	if (tTd(38, 20))
+		printf("impl_map_lookup(%s, %s)\n",
+			map->map_mname, name);
+
+#ifdef NEWDB
+	if (bitset(MF_IMPL_HASH, map->map_mflags))
+		return db_map_lookup(map, name, av, pstat);
+#endif
+#ifdef NDBM
+	if (bitset(MF_IMPL_NDBM, map->map_mflags))
+		return ndbm_map_lookup(map, name, av, pstat);
+#endif
+	return stab_map_lookup(map, name, av, pstat);
+}
+
+/*
+**  IMPL_MAP_STORE -- store in open databases
+*/
+
+void
+impl_map_store(map, lhs, rhs)
+	MAP *map;
+	char *lhs;
+	char *rhs;
+{
+	if (tTd(38, 12))
+		printf("impl_map_store(%s, %s, %s)\n",
+			map->map_mname, lhs, rhs);
+#ifdef NEWDB
+	if (bitset(MF_IMPL_HASH, map->map_mflags))
+		db_map_store(map, lhs, rhs);
+#endif
+#ifdef NDBM
+	if (bitset(MF_IMPL_NDBM, map->map_mflags))
+		ndbm_map_store(map, lhs, rhs);
+#endif
+	stab_map_store(map, lhs, rhs);
+}
+
+/*
+**  IMPL_MAP_OPEN -- implicit database open
+*/
+
+bool
+impl_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	if (tTd(38, 2))
+		printf("impl_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	mode &= O_ACCMODE;
+#ifdef NEWDB
+	map->map_mflags |= MF_IMPL_HASH;
+	if (hash_map_open(map, mode))
+	{
+# ifdef NDBM_YP_COMPAT
+		if (mode == O_RDONLY || strstr(map->map_file, "/yp/") == NULL)
+# endif
+			return TRUE;
+	}
+	else
+		map->map_mflags &= ~MF_IMPL_HASH;
+#endif
+#ifdef NDBM
+	map->map_mflags |= MF_IMPL_NDBM;
+	if (ndbm_map_open(map, mode))
+	{
+		return TRUE;
+	}
+	else
+		map->map_mflags &= ~MF_IMPL_NDBM;
+#endif
+
+#if defined(NEWDB) || defined(NDBM)
+	if (Verbose)
+		message("WARNING: cannot open alias database %s", map->map_file);
+#else
+	if (mode != O_RDONLY)
+		usrerr("Cannot rebuild aliases: no database format defined");
+#endif
+
+	return stab_map_open(map, mode);
+}
+
+
+/*
+**  IMPL_MAP_CLOSE -- close any open database(s)
+*/
+
+void
+impl_map_close(map)
+	MAP *map;
+{
+	if (tTd(38, 9))
+		printf("impl_map_close(%s, %s, %lx)\n",
+			map->map_mname, map->map_file, map->map_mflags);
+#ifdef NEWDB
+	if (bitset(MF_IMPL_HASH, map->map_mflags))
+	{
+		db_map_close(map);
+		map->map_mflags &= ~MF_IMPL_HASH;
+	}
+#endif
+
+#ifdef NDBM
+	if (bitset(MF_IMPL_NDBM, map->map_mflags))
+	{
+		ndbm_map_close(map);
+		map->map_mflags &= ~MF_IMPL_NDBM;
+	}
+#endif
+}
+/*
+**  User map class.
+**
+**	Provides access to the system password file.
+*/
+
+/*
+**  USER_MAP_OPEN -- open user map
+**
+**	Really just binds field names to field numbers.
+*/
+
+bool
+user_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	if (tTd(38, 2))
+		printf("user_map_open(%s, %d)\n",
+			map->map_mname, mode);
+
+	mode &= O_ACCMODE;
+	if (mode != O_RDONLY)
+	{
+		/* issue a pseudo-error message */
+#ifdef ENOSYS
+		errno = ENOSYS;
+#else
+# ifdef EFTYPE
+		errno = EFTYPE;
+# else
+		errno = ENXIO;
+# endif
+#endif
+		return FALSE;
+	}
+	if (map->map_valcolnm == NULL)
+		/* nothing */ ;
+	else if (strcasecmp(map->map_valcolnm, "name") == 0)
+		map->map_valcolno = 1;
+	else if (strcasecmp(map->map_valcolnm, "passwd") == 0)
+		map->map_valcolno = 2;
+	else if (strcasecmp(map->map_valcolnm, "uid") == 0)
+		map->map_valcolno = 3;
+	else if (strcasecmp(map->map_valcolnm, "gid") == 0)
+		map->map_valcolno = 4;
+	else if (strcasecmp(map->map_valcolnm, "gecos") == 0)
+		map->map_valcolno = 5;
+	else if (strcasecmp(map->map_valcolnm, "dir") == 0)
+		map->map_valcolno = 6;
+	else if (strcasecmp(map->map_valcolnm, "shell") == 0)
+		map->map_valcolno = 7;
+	else
+	{
+		syserr("User map %s: unknown column name %s",
+			map->map_mname, map->map_valcolnm);
+		return FALSE;
+	}
+	return TRUE;
+}
+
+
+/*
+**  USER_MAP_LOOKUP -- look up a user in the passwd file.
+*/
+
+char *
+user_map_lookup(map, key, av, statp)
+	MAP *map;
+	char *key;
+	char **av;
+	int *statp;
+{
+	struct passwd *pw;
+	auto bool fuzzy;
+
+	if (tTd(38, 20))
+		printf("user_map_lookup(%s, %s)\n",
+			map->map_mname, key);
+
+	pw = finduser(key, &fuzzy);
+	if (pw == NULL)
+		return NULL;
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, key, strlen(key), NULL);
+	else
+	{
+		char *rwval = NULL;
+		char buf[30];
+
+		switch (map->map_valcolno)
+		{
+		  case 0:
+		  case 1:
+			rwval = pw->pw_name;
+			break;
+
+		  case 2:
+			rwval = pw->pw_passwd;
+			break;
+
+		  case 3:
+			snprintf(buf, sizeof buf, "%d", pw->pw_uid);
+			rwval = buf;
+			break;
+
+		  case 4:
+			snprintf(buf, sizeof buf, "%d", pw->pw_gid);
+			rwval = buf;
+			break;
+
+		  case 5:
+			rwval = pw->pw_gecos;
+			break;
+
+		  case 6:
+			rwval = pw->pw_dir;
+			break;
+
+		  case 7:
+			rwval = pw->pw_shell;
+			break;
+		}
+		return map_rewrite(map, rwval, strlen(rwval), av);
+	}
+}
+/*
+**  Program map type.
+**
+**	This provides access to arbitrary programs.  It should be used
+**	only very sparingly, since there is no way to bound the cost
+**	of invoking an arbitrary program.
+*/
+
+char *
+prog_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	int i;
+	register char *p;
+	int fd;
+	auto pid_t pid;
+	char *rval;
+	int stat;
+	char *argv[MAXPV + 1];
+	char buf[MAXLINE];
+
+	if (tTd(38, 20))
+		printf("prog_map_lookup(%s, %s) %s\n",
+			map->map_mname, name, map->map_file);
+
+	i = 0;
+	argv[i++] = map->map_file;
+	if (map->map_rebuild != NULL)
+	{
+		snprintf(buf, sizeof buf, "%s", map->map_rebuild);
+		for (p = strtok(buf, " \t"); p != NULL; p = strtok(NULL, " \t"))
+		{
+			if (i >= MAXPV - 1)
+				break;
+			argv[i++] = p;
+		}
+	}
+	argv[i++] = name;
+	argv[i] = NULL;
+	if (tTd(38, 21))
+	{
+		printf("prog_open:");
+		for (i = 0; argv[i] != NULL; i++)
+			printf(" %s", argv[i]);
+		printf("\n");
+	}
+	(void) blocksignal(SIGCHLD);
+	pid = prog_open(argv, &fd, CurEnv);
+	if (pid < 0)
+	{
+		if (!bitset(MF_OPTIONAL, map->map_mflags))
+			syserr("prog_map_lookup(%s) failed (%s) -- closing",
+				map->map_mname, errstring(errno));
+		else if (tTd(38, 9))
+			printf("prog_map_lookup(%s) failed (%s) -- closing",
+				map->map_mname, errstring(errno));
+		map->map_mflags &= ~(MF_VALID|MF_OPEN);
+		*statp = EX_OSFILE;
+		return NULL;
+	}
+	i = read(fd, buf, sizeof buf - 1);
+	if (i < 0)
+	{
+		syserr("prog_map_lookup(%s): read error %s\n",
+			map->map_mname, errstring(errno));
+		rval = NULL;
+	}
+	else if (i == 0)
+	{
+		if (tTd(38, 20))
+			printf("prog_map_lookup(%s): empty answer\n",
+				map->map_mname);
+		rval = NULL;
+	}
+	else
+	{
+		buf[i] = '\0';
+		p = strchr(buf, '\n');
+		if (p != NULL)
+			*p = '\0';
+
+		/* collect the return value */
+		if (bitset(MF_MATCHONLY, map->map_mflags))
+			rval = map_rewrite(map, name, strlen(name), NULL);
+		else
+			rval = map_rewrite(map, buf, strlen(buf), NULL);
+
+		/* now flush any additional output */
+		while ((i = read(fd, buf, sizeof buf)) > 0)
+			continue;
+	}
+
+	/* wait for the process to terminate */
+	close(fd);
+	stat = waitfor(pid);
+	(void) releasesignal(SIGCHLD);
+
+	if (stat == -1)
+	{
+		syserr("prog_map_lookup(%s): wait error %s\n",
+			map->map_mname, errstring(errno));
+		*statp = EX_SOFTWARE;
+		rval = NULL;
+	}
+	else if (WIFEXITED(stat))
+	{
+		if ((*statp = WEXITSTATUS(stat)) != EX_OK)
+			rval = NULL;
+	}
+	else
+	{
+		syserr("prog_map_lookup(%s): child died on signal %d",
+			map->map_mname, stat);
+		*statp = EX_UNAVAILABLE;
+		rval = NULL;
+	}
+	return rval;
+}
+/*
+**  Sequenced map type.
+**
+**	Tries each map in order until something matches, much like
+**	implicit.  Stores go to the first map in the list that can
+**	support storing.
+**
+**	This is slightly unusual in that there are two interfaces.
+**	The "sequence" interface lets you stack maps arbitrarily.
+**	The "switch" interface builds a sequence map by looking
+**	at a system-dependent configuration file such as
+**	/etc/nsswitch.conf on Solaris or /etc/svc.conf on Ultrix.
+**
+**	We don't need an explicit open, since all maps are
+**	opened during startup, including underlying maps.
+*/
+
+/*
+**  SEQ_MAP_PARSE -- Sequenced map parsing
+*/
+
+bool
+seq_map_parse(map, ap)
+	MAP *map;
+	char *ap;
+{
+	int maxmap;
+
+	if (tTd(38, 2))
+		printf("seq_map_parse(%s, %s)\n", map->map_mname, ap);
+	maxmap = 0;
+	while (*ap != '\0')
+	{
+		register char *p;
+		STAB *s;
+
+		/* find beginning of map name */
+		while (isascii(*ap) && isspace(*ap))
+			ap++;
+		for (p = ap; isascii(*p) && isalnum(*p); p++)
+			continue;
+		if (*p != '\0')
+			*p++ = '\0';
+		while (*p != '\0' && (!isascii(*p) || !isalnum(*p)))
+			p++;
+		if (*ap == '\0')
+		{
+			ap = p;
+			continue;
+		}
+		s = stab(ap, ST_MAP, ST_FIND);
+		if (s == NULL)
+		{
+			syserr("Sequence map %s: unknown member map %s",
+				map->map_mname, ap);
+		}
+		else if (maxmap == MAXMAPSTACK)
+		{
+			syserr("Sequence map %s: too many member maps (%d max)",
+				map->map_mname, MAXMAPSTACK);
+			maxmap++;
+		}
+		else if (maxmap < MAXMAPSTACK)
+		{
+			map->map_stack[maxmap++] = &s->s_map;
+		}
+		ap = p;
+	}
+	return TRUE;
+}
+
+
+/*
+**  SWITCH_MAP_OPEN -- open a switched map
+**
+**	This looks at the system-dependent configuration and builds
+**	a sequence map that does the same thing.
+**
+**	Every system must define a switch_map_find routine in conf.c
+**	that will return the list of service types associated with a
+**	given service class.
+*/
+
+bool
+switch_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	int mapno;
+	int nmaps;
+	char *maptype[MAXMAPSTACK];
+
+	if (tTd(38, 2))
+		printf("switch_map_open(%s, %s, %d)\n",
+			map->map_mname, map->map_file, mode);
+
+	mode &= O_ACCMODE;
+	nmaps = switch_map_find(map->map_file, maptype, map->map_return);
+	if (tTd(38, 19))
+	{
+		printf("\tswitch_map_find => %d\n", nmaps);
+		for (mapno = 0; mapno < nmaps; mapno++)
+			printf("\t\t%s\n", maptype[mapno]);
+	}
+	if (nmaps <= 0 || nmaps > MAXMAPSTACK)
+		return FALSE;
+
+	for (mapno = 0; mapno < nmaps; mapno++)
+	{
+		register STAB *s;
+		char nbuf[MAXNAME + 1];
+
+		if (maptype[mapno] == NULL)
+			continue;
+		(void) snprintf(nbuf, sizeof nbuf, "%s.%s",
+			map->map_mname, maptype[mapno]);
+		s = stab(nbuf, ST_MAP, ST_FIND);
+		if (s == NULL)
+		{
+			syserr("Switch map %s: unknown member map %s",
+				map->map_mname, nbuf);
+		}
+		else
+		{
+			map->map_stack[mapno] = &s->s_map;
+			if (tTd(38, 4))
+				printf("\tmap_stack[%d] = %s:%s\n",
+					mapno, s->s_map.map_class->map_cname,
+					nbuf);
+		}
+	}
+	return TRUE;
+}
+
+
+/*
+**  SEQ_MAP_CLOSE -- close all underlying maps
+*/
+
+void
+seq_map_close(map)
+	MAP *map;
+{
+	int mapno;
+
+	if (tTd(38, 9))
+		printf("seq_map_close(%s)\n", map->map_mname);
+
+	for (mapno = 0; mapno < MAXMAPSTACK; mapno++)
+	{
+		MAP *mm = map->map_stack[mapno];
+
+		if (mm == NULL || !bitset(MF_OPEN, mm->map_mflags))
+			continue;
+		mm->map_class->map_close(mm);
+		mm->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
+	}
+}
+
+
+/*
+**  SEQ_MAP_LOOKUP -- sequenced map lookup
+*/
+
+char *
+seq_map_lookup(map, key, args, pstat)
+	MAP *map;
+	char *key;
+	char **args;
+	int *pstat;
+{
+	int mapno;
+	int mapbit = 0x01;
+	bool tempfail = FALSE;
+
+	if (tTd(38, 20))
+		printf("seq_map_lookup(%s, %s)\n", map->map_mname, key);
+
+	for (mapno = 0; mapno < MAXMAPSTACK; mapbit <<= 1, mapno++)
+	{
+		MAP *mm = map->map_stack[mapno];
+		char *rv;
+
+		if (mm == NULL)
+			continue;
+		if (!bitset(MF_OPEN, mm->map_mflags))
+		{
+			if (bitset(mapbit, map->map_return[MA_UNAVAIL]))
+			{
+				*pstat = EX_UNAVAILABLE;
+				return NULL;
+			}
+			continue;
+		}
+		*pstat = EX_OK;
+		rv = mm->map_class->map_lookup(mm, key, args, pstat);
+		if (rv != NULL)
+			return rv;
+		if (*pstat == EX_TEMPFAIL)
+		{
+			if (bitset(mapbit, map->map_return[MA_TRYAGAIN]))
+				return NULL;
+			tempfail = TRUE;
+		}
+		else if (bitset(mapbit, map->map_return[MA_NOTFOUND]))
+			break;
+	}
+	if (tempfail)
+		*pstat = EX_TEMPFAIL;
+	else if (*pstat == EX_OK)
+		*pstat = EX_NOTFOUND;
+	return NULL;
+}
+
+
+/*
+**  SEQ_MAP_STORE -- sequenced map store
+*/
+
+void
+seq_map_store(map, key, val)
+	MAP *map;
+	char *key;
+	char *val;
+{
+	int mapno;
+
+	if (tTd(38, 12))
+		printf("seq_map_store(%s, %s, %s)\n",
+			map->map_mname, key, val);
+
+	for (mapno = 0; mapno < MAXMAPSTACK; mapno++)
+	{
+		MAP *mm = map->map_stack[mapno];
+
+		if (mm == NULL || !bitset(MF_WRITABLE, mm->map_mflags))
+			continue;
+
+		mm->map_class->map_store(mm, key, val);
+		return;
+	}
+	syserr("seq_map_store(%s, %s, %s): no writable map",
+		map->map_mname, key, val);
+}
+/*
+**  NULL stubs
+*/
+
+bool
+null_map_open(map, mode)
+	MAP *map;
+	int mode;
+{
+	return TRUE;
+}
+
+void
+null_map_close(map)
+	MAP *map;
+{
+	return;
+}
+
+char *
+null_map_lookup(map, key, args, pstat)
+	MAP *map;
+	char *key;
+	char **args;
+	int *pstat;
+{
+	*pstat = EX_NOTFOUND;
+	return NULL;
+}
+
+void
+null_map_store(map, key, val)
+	MAP *map;
+	char *key;
+	char *val;
+{
+	return;
+}
+
+
+/*
+**  BOGUS stubs
+*/
+
+char *
+bogus_map_lookup(map, key, args, pstat)
+	MAP *map;
+	char *key;
+	char **args;
+	int *pstat;
+{
+	*pstat = EX_TEMPFAIL;
+	return NULL;
+}
+
+MAPCLASS	BogusMapClass =
+{
+	"bogus-map",		NULL,		0,
+	NULL,		bogus_map_lookup,	null_map_store,
+	null_map_open,	null_map_close,
+};
diff --git a/src/mci.c b/src/mci.c
new file mode 100644
index 0000000..929d82d
--- /dev/null
+++ b/src/mci.c
@@ -0,0 +1,1286 @@
+/*
+ * Copyright (c) 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)mci.c	8.66 (Berkeley) 8/2/97";
+#endif /* not lint */
+
+#include "sendmail.h"
+#include <dirent.h>
+
+/*
+**  Mail Connection Information (MCI) Caching Module.
+**
+**	There are actually two separate things cached.  The first is
+**	the set of all open connections -- these are stored in a
+**	(small) list.  The second is stored in the symbol table; it
+**	has the overall status for all hosts, whether or not there
+**	is a connection open currently.
+**
+**	There should never be too many connections open (since this
+**	could flood the socket table), nor should a connection be
+**	allowed to sit idly for too long.
+**
+**	MaxMciCache is the maximum number of open connections that
+**	will be supported.
+**
+**	MciCacheTimeout is the time (in seconds) that a connection
+**	is permitted to survive without activity.
+**
+**	We actually try any cached connections by sending a NOOP
+**	before we use them; if the NOOP fails we close down the
+**	connection and reopen it.  Note that this means that a
+**	server SMTP that doesn't support NOOP will hose the
+**	algorithm -- but that doesn't seem too likely.
+**
+**	The persistent MCI code is donated by Mark Lovell and Paul
+**	Vixie.  It is based on the long term host status code in KJS
+**	written by Paul but has been adapted by Mark to fit into the
+**	MCI structure.
+*/
+
+MCI	**MciCache;		/* the open connection cache */
+
+extern int	mci_generate_persistent_path __P((const char *, char *, int, bool));
+extern void	mci_load_persistent __P((MCI *));
+extern void	mci_uncache __P((MCI **, bool));
+/*
+**  MCI_CACHE -- enter a connection structure into the open connection cache
+**
+**	This may cause something else to be flushed.
+**
+**	Parameters:
+**		mci -- the connection to cache.
+**
+**	Returns:
+**		none.
+*/
+
+void
+mci_cache(mci)
+	register MCI *mci;
+{
+	register MCI **mcislot;
+
+	/*
+	**  Find the best slot.  This may cause expired connections
+	**  to be closed.
+	*/
+
+	mcislot = mci_scan(mci);
+	if (mcislot == NULL)
+	{
+		/* we don't support caching */
+		return;
+	}
+
+	/* if this is already cached, we are done */
+	if (bitset(MCIF_CACHED, mci->mci_flags))
+		return;
+
+	/* otherwise we may have to clear the slot */
+	if (*mcislot != NULL)
+		mci_uncache(mcislot, TRUE);
+
+	if (tTd(42, 5))
+		printf("mci_cache: caching %lx (%s) in slot %d\n",
+			(u_long) mci, mci->mci_host, mcislot - MciCache);
+	if (tTd(91, 100))
+		sm_syslog(LOG_DEBUG, CurEnv->e_id,
+			"mci_cache: caching %x (%.100s) in slot %d",
+			mci, mci->mci_host, mcislot - MciCache);
+
+	*mcislot = mci;
+	mci->mci_flags |= MCIF_CACHED;
+}
+/*
+**  MCI_SCAN -- scan the cache, flush junk, and return best slot
+**
+**	Parameters:
+**		savemci -- never flush this one.  Can be null.
+**
+**	Returns:
+**		The LRU (or empty) slot.
+*/
+
+MCI **
+mci_scan(savemci)
+	MCI *savemci;
+{
+	time_t now;
+	register MCI **bestmci;
+	register MCI *mci;
+	register int i;
+
+	if (MaxMciCache <= 0)
+	{
+		/* we don't support caching */
+		return NULL;
+	}
+
+	if (MciCache == NULL)
+	{
+		/* first call */
+		MciCache = (MCI **) xalloc(MaxMciCache * sizeof *MciCache);
+		bzero((char *) MciCache, MaxMciCache * sizeof *MciCache);
+		return (&MciCache[0]);
+	}
+
+	now = curtime();
+	bestmci = &MciCache[0];
+	for (i = 0; i < MaxMciCache; i++)
+	{
+		mci = MciCache[i];
+		if (mci == NULL || mci->mci_state == MCIS_CLOSED)
+		{
+			bestmci = &MciCache[i];
+			continue;
+		}
+		if (mci->mci_lastuse + MciCacheTimeout < now && mci != savemci)
+		{
+			/* connection idle too long -- close it */
+			bestmci = &MciCache[i];
+			mci_uncache(bestmci, TRUE);
+			continue;
+		}
+		if (*bestmci == NULL)
+			continue;
+		if (mci->mci_lastuse < (*bestmci)->mci_lastuse)
+			bestmci = &MciCache[i];
+	}
+	return bestmci;
+}
+/*
+**  MCI_UNCACHE -- remove a connection from a slot.
+**
+**	May close a connection.
+**
+**	Parameters:
+**		mcislot -- the slot to empty.
+**		doquit -- if TRUE, send QUIT protocol on this connection.
+**			  if FALSE, we are assumed to be in a forked child;
+**				all we want to do is close the file(s).
+**
+**	Returns:
+**		none.
+*/
+
+void
+mci_uncache(mcislot, doquit)
+	register MCI **mcislot;
+	bool doquit;
+{
+	register MCI *mci;
+	extern ENVELOPE BlankEnvelope;
+
+	mci = *mcislot;
+	if (mci == NULL)
+		return;
+	*mcislot = NULL;
+
+	mci_unlock_host(mci);
+
+	if (tTd(42, 5))
+		printf("mci_uncache: uncaching %lx (%s) from slot %d (%d)\n",
+			(u_long) mci, mci->mci_host, mcislot - MciCache, doquit);
+	if (tTd(91, 100))
+		sm_syslog(LOG_DEBUG, CurEnv->e_id,
+			"mci_uncache: uncaching %x (%.100s) from slot %d (%d)",
+			mci, mci->mci_host, mcislot - MciCache, doquit);
+
+#if SMTP
+	if (doquit)
+	{
+		message("Closing connection to %s", mci->mci_host);
+
+		mci->mci_flags &= ~MCIF_CACHED;
+
+		/* only uses the envelope to flush the transcript file */
+		if (mci->mci_state != MCIS_CLOSED)
+			smtpquit(mci->mci_mailer, mci, &BlankEnvelope);
+#ifdef XLA
+		xla_host_end(mci->mci_host);
+#endif
+	}
+	else
+#endif
+	{
+		if (mci->mci_in != NULL)
+			xfclose(mci->mci_in, "mci_uncache", "mci_in");
+		if (mci->mci_out != NULL)
+			xfclose(mci->mci_out, "mci_uncache", "mci_out");
+		mci->mci_in = mci->mci_out = NULL;
+		mci->mci_state = MCIS_CLOSED;
+		mci->mci_exitstat = EX_OK;
+		mci->mci_errno = 0;
+		mci->mci_flags = 0;
+	}
+}
+/*
+**  MCI_FLUSH -- flush the entire cache
+**
+**	Parameters:
+**		doquit -- if TRUE, send QUIT protocol.
+**			  if FALSE, just close the connection.
+**		allbut -- but leave this one open.
+**
+**	Returns:
+**		none.
+*/
+
+void
+mci_flush(doquit, allbut)
+	bool doquit;
+	MCI *allbut;
+{
+	register int i;
+
+	if (MciCache == NULL)
+		return;
+
+	for (i = 0; i < MaxMciCache; i++)
+		if (allbut != MciCache[i])
+			mci_uncache(&MciCache[i], doquit);
+}
+/*
+**  MCI_GET -- get information about a particular host
+*/
+
+MCI *
+mci_get(host, m)
+	char *host;
+	MAILER *m;
+{
+	register MCI *mci;
+	register STAB *s;
+
+#if DAEMON
+	extern SOCKADDR CurHostAddr;
+
+	/* clear CurHostAddr so we don't get a bogus address with this name */
+	bzero(&CurHostAddr, sizeof CurHostAddr);
+#endif
+
+	/* clear out any expired connections */
+	(void) mci_scan(NULL);
+
+	if (m->m_mno < 0)
+		syserr("negative mno %d (%s)", m->m_mno, m->m_name);
+	s = stab(host, ST_MCI + m->m_mno, ST_ENTER);
+	mci = &s->s_mci;
+	mci->mci_host = s->s_name;
+
+	mci_load_persistent(mci);
+
+	if (tTd(42, 2))
+	{
+		printf("mci_get(%s %s): mci_state=%d, _flags=%x, _exitstat=%d, _errno=%d\n",
+			host, m->m_name, mci->mci_state, mci->mci_flags,
+			mci->mci_exitstat, mci->mci_errno);
+	}
+
+#if SMTP
+	if (mci->mci_state == MCIS_OPEN)
+	{
+		extern int smtpprobe __P((MCI *));
+
+		/* poke the connection to see if it's still alive */
+		(void) smtpprobe(mci);
+
+		/* reset the stored state in the event of a timeout */
+		if (mci->mci_state != MCIS_OPEN)
+		{
+			mci->mci_errno = 0;
+			mci->mci_exitstat = EX_OK;
+			mci->mci_state = MCIS_CLOSED;
+		}
+# if DAEMON
+		else
+		{
+			/* get peer host address for logging reasons only */
+			/* (this should really be in the mci struct) */
+			SOCKADDR_LEN_T socklen = sizeof CurHostAddr;
+
+			(void) getpeername(fileno(mci->mci_in),
+				(struct sockaddr *) &CurHostAddr, &socklen);
+		}
+# endif
+	}
+#endif
+	if (mci->mci_state == MCIS_CLOSED)
+	{
+		time_t now = curtime();
+
+		/* if this info is stale, ignore it */
+		if (now > mci->mci_lastuse + MciInfoTimeout)
+		{
+			mci->mci_lastuse = now;
+			mci->mci_errno = 0;
+			mci->mci_exitstat = EX_OK;
+		}
+	}
+
+	return mci;
+}
+/*
+**  MCI_SETSTAT -- set status codes in MCI structure.
+**
+**	Parameters:
+**		mci -- the MCI structure to set.
+**		xstat -- the exit status code.
+**		dstat -- the DSN status code.
+**		rstat -- the SMTP status code.
+**
+**	Returns:
+**		none.
+*/
+
+void
+mci_setstat(mci, xstat, dstat, rstat)
+	MCI *mci;
+	int xstat;
+	char *dstat;
+	char *rstat;
+{
+	/* protocol errors should never be interpreted as sticky */
+	if (xstat != EX_NOTSTICKY && xstat != EX_PROTOCOL)
+		mci->mci_exitstat = xstat;
+
+	mci->mci_status = dstat;
+	if (mci->mci_rstatus != NULL)
+		free(mci->mci_rstatus);
+	if (rstat != NULL)
+		rstat = newstr(rstat);
+	mci->mci_rstatus = rstat;
+}
+/*
+**  MCI_DUMP -- dump the contents of an MCI structure.
+**
+**	Parameters:
+**		mci -- the MCI structure to dump.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+struct mcifbits
+{
+	int	mcif_bit;	/* flag bit */
+	char	*mcif_name;	/* flag name */
+};
+struct mcifbits	MciFlags[] =
+{
+	{ MCIF_VALID,		"VALID"		},
+	{ MCIF_TEMP,		"TEMP"		},
+	{ MCIF_CACHED,		"CACHED"	},
+	{ MCIF_ESMTP,		"ESMTP"		},
+	{ MCIF_EXPN,		"EXPN"		},
+	{ MCIF_SIZE,		"SIZE"		},
+	{ MCIF_8BITMIME,	"8BITMIME"	},
+	{ MCIF_7BIT,		"7BIT"		},
+	{ MCIF_MULTSTAT,	"MULTSTAT"	},
+	{ MCIF_INHEADER,	"INHEADER"	},
+	{ MCIF_CVT8TO7,		"CVT8TO7"	},
+	{ MCIF_DSN,		"DSN"		},
+	{ MCIF_8BITOK,		"8BITOK"	},
+	{ MCIF_CVT7TO8,		"CVT7TO8"	},
+	{ MCIF_INMIME,		"INMIME"	},
+	{ 0,			NULL }
+};
+
+
+void
+mci_dump(mci, logit)
+	register MCI *mci;
+	bool logit;
+{
+	register char *p;
+	char *sep;
+	char buf[4000];
+	extern char *ctime();
+
+	sep = logit ? " " : "\n\t";
+	p = buf;
+	snprintf(p, SPACELEFT(buf, p), "MCI@%x: ", mci);
+	p += strlen(p);
+	if (mci == NULL)
+	{
+		snprintf(p, SPACELEFT(buf, p), "NULL");
+		goto printit;
+	}
+	snprintf(p, SPACELEFT(buf, p), "flags=%x", mci->mci_flags);
+	p += strlen(p);
+	if (mci->mci_flags != 0)
+	{
+		struct mcifbits *f;
+
+		*p++ = '<';
+		for (f = MciFlags; f->mcif_bit != 0; f++)
+		{
+			if (!bitset(f->mcif_bit, mci->mci_flags))
+				continue;
+			snprintf(p, SPACELEFT(buf, p), "%s,", f->mcif_name);
+			p += strlen(p);
+		}
+		p[-1] = '>';
+	}
+	snprintf(p, SPACELEFT(buf, p),
+		",%serrno=%d, herrno=%d, exitstat=%d, state=%d, pid=%d,%s",
+		sep, mci->mci_errno, mci->mci_herrno,
+		mci->mci_exitstat, mci->mci_state, mci->mci_pid, sep);
+	p += strlen(p);
+	snprintf(p, SPACELEFT(buf, p),
+		"maxsize=%ld, phase=%s, mailer=%s,%s",
+		mci->mci_maxsize,
+		mci->mci_phase == NULL ? "NULL" : mci->mci_phase,
+		mci->mci_mailer == NULL ? "NULL" : mci->mci_mailer->m_name,
+		sep);
+	p += strlen(p);
+	snprintf(p, SPACELEFT(buf, p),
+		"status=%s, rstatus=%s,%s",
+		mci->mci_status == NULL ? "NULL" : mci->mci_status,
+		mci->mci_rstatus == NULL ? "NULL" : mci->mci_rstatus,
+		sep);
+	p += strlen(p);
+	snprintf(p, SPACELEFT(buf, p),
+		"host=%s, lastuse=%s",
+		mci->mci_host == NULL ? "NULL" : mci->mci_host,
+		ctime(&mci->mci_lastuse));
+printit:
+	if (logit)
+		sm_syslog(LOG_DEBUG, CurEnv->e_id, "%.1000s", buf);
+	else
+		printf("%s\n", buf);
+}
+/*
+**  MCI_DUMP_ALL -- print the entire MCI cache
+**
+**	Parameters:
+**		logit -- if set, log the result instead of printing
+**			to stdout.
+**
+**	Returns:
+**		none.
+*/
+
+void
+mci_dump_all(logit)
+	bool logit;
+{
+	register int i;
+
+	if (MciCache == NULL)
+		return;
+
+	for (i = 0; i < MaxMciCache; i++)
+		mci_dump(MciCache[i], logit);
+}
+/*
+** MCI_LOCK_HOST -- Lock host while sending.
+**
+**	If we are contacting a host, we'll need to
+**	update the status information in the host status
+**	file, and if we want to do that, we ought to have
+**	locked it. This has the (according to some)
+**	desirable effect of serializing connectivity with
+**	remote hosts -- i.e.: one connection to a give
+**	host at a time.
+**
+**	Parameters:
+**		mci -- containing the host we want to lock.
+**
+**	Returns:
+**		EX_OK	   -- got the lock.
+**		EX_TEMPFAIL -- didn't get the lock.
+*/
+
+int
+mci_lock_host(mci)
+	MCI *mci;
+{
+	if (mci == NULL)
+	{
+		if (tTd(56, 1))
+			printf("mci_lock_host: NULL mci\n");
+		return EX_OK;
+	}
+
+	if (!SingleThreadDelivery)
+		return EX_OK;
+
+	return mci_lock_host_statfile(mci);
+}
+
+int
+mci_lock_host_statfile(mci)
+	MCI *mci;
+{
+	int savedErrno = errno;
+	int retVal = EX_OK;
+	char fname[MAXPATHLEN+1];
+
+	if (HostStatDir == NULL || mci->mci_host == NULL)
+		return EX_OK;
+
+	if (tTd(56, 2))
+		printf("mci_lock_host: attempting to lock %s\n",
+			mci->mci_host);
+
+	if (mci_generate_persistent_path(mci->mci_host, fname, sizeof fname, TRUE) < 0)
+	{
+		/* of course this should never happen */
+		if (tTd(56, 2))
+			printf("mci_lock_host: Failed to generate host path for %s\n",
+			       mci->mci_host);
+
+		retVal = EX_TEMPFAIL;
+		goto cleanup;
+	}
+
+	mci->mci_statfile = safefopen(fname, O_RDWR, FileMode,
+		   SFF_NOLOCK|SFF_NOLINK|SFF_OPENASROOT|SFF_REGONLY|SFF_CREAT);
+
+	if (mci->mci_statfile == NULL)
+	{
+		syserr("mci_lock_host: cannot create host lock file %s",
+			       fname);
+		goto cleanup;
+	}
+
+	if (!lockfile(fileno(mci->mci_statfile), fname, "", LOCK_EX|LOCK_NB))
+	{
+		if (tTd(56, 2))
+			printf("mci_lock_host: couldn't get lock on %s\n",
+			       fname);
+		fclose(mci->mci_statfile);
+		mci->mci_statfile = NULL;
+		retVal = EX_TEMPFAIL;
+		goto cleanup;
+	}
+
+	if (tTd(56, 12) && mci->mci_statfile != NULL)
+		printf("mci_lock_host: Sanity check -- lock is good\n");
+
+cleanup:
+	errno = savedErrno;
+	return retVal;
+}
+/*
+**  MCI_UNLOCK_HOST -- unlock host
+**
+**	Clean up the lock on a host, close the file, let
+**	someone else use it.
+**
+**	Parameters:
+**		mci -- us.
+**
+**	Returns:
+**		nothing.
+*/
+
+void
+mci_unlock_host(mci)
+	MCI *mci;
+{
+	int saveErrno = errno;
+
+	if (mci == NULL)
+	{
+		if (tTd(56, 1))
+			printf("mci_unlock_host: NULL mci\n");
+		return;
+	}
+
+	if (HostStatDir == NULL || mci->mci_host == NULL)
+		return;
+
+	if (!SingleThreadDelivery && mci_lock_host_statfile(mci) == EX_TEMPFAIL)
+	{
+		if (tTd(56, 1))
+			printf("mci_unlock_host: stat file already locked\n");
+	}
+	else
+	{
+		if (tTd(56, 2))
+			printf("mci_unlock_host: store prior to unlock\n");
+
+		mci_store_persistent(mci);
+	}
+
+	if (mci->mci_statfile != NULL)
+	{
+		fclose(mci->mci_statfile);
+		mci->mci_statfile = NULL;
+	}
+
+	errno = saveErrno;
+}
+/*
+** MCI_LOAD_PERSISTENT -- load persistent host info
+**
+**	Load information about host that is kept
+**	in common for all running sendmails.
+**
+**	Parameters:
+**		mci -- the host/connection to load persistent info
+**			   for.
+**
+**	Returns:
+**		none.
+*/
+
+void
+mci_load_persistent(mci)
+	MCI *mci;
+{
+	int saveErrno = errno;
+	FILE *fp;
+	char fname[MAXPATHLEN+1];
+
+	if (mci == NULL)
+	{
+		if (tTd(56, 1))
+			printf("mci_load_persistent: NULL mci\n");
+		return;
+	}
+
+	if (IgnoreHostStatus || HostStatDir == NULL || mci->mci_host == NULL)
+		return;
+	
+	if (tTd(56, 1))
+		printf("mci_load_persistent: Attempting to load persistent information for %s\n",
+		       mci->mci_host);
+		
+	if (mci_generate_persistent_path(mci->mci_host, fname, sizeof fname, FALSE) < 0)
+	{
+		/* Not much we can do if the file isn't there... */
+		if (tTd(56, 1))
+			printf("mci_load_persistent: Couldn't generate host path\n");
+		goto cleanup;
+	}
+
+	fp = safefopen(fname, O_RDONLY, FileMode,
+		       SFF_NOLINK|SFF_OPENASROOT|SFF_REGONLY);
+	if (fp == NULL)
+	{
+		/* I can't think of any reason this should ever happen */
+		if (tTd(56, 1))
+			printf("mci_load_persistent: open(%s): %s\n",
+				fname, errstring(errno));
+		goto cleanup;
+	}
+
+	FileName = fname;
+	(void) mci_read_persistent(fp, mci);
+	FileName = NULL;
+	fclose(fp);
+
+cleanup:
+	errno = saveErrno;
+	return;
+}
+/*
+**  MCI_READ_PERSISTENT -- read persistent host status file
+**
+**	Parameters:
+**		fp -- the file pointer to read.
+**		mci -- the pointer to fill in.
+**
+**	Returns:
+**		-1 -- if the file was corrupt.
+**		0 -- otherwise.
+**
+**	Warning:
+**		This code makes the assumption that this data
+**		will be read in an atomic fashion, and that the data
+**		was written in an atomic fashion.  Any other functioning
+**		may lead to some form of insanity.  This should be
+**		perfectly safe due to underlying stdio buffering.
+*/
+
+int
+mci_read_persistent(fp, mci)
+	FILE *fp;
+	register MCI *mci;
+{
+	int ver;
+	register char *p;
+	int saveLineNumber = LineNumber;
+	char buf[MAXLINE];
+
+	if (fp == NULL)
+		syserr("mci_read_persistent: NULL fp");
+	if (mci == NULL)
+		syserr("mci_read_persistent: NULL mci");
+	if (tTd(56, 93))
+	{
+		printf("mci_read_persistent: fp=%lx, mci=", (u_long) fp);
+		mci_dump(mci, FALSE);
+	}
+
+	mci->mci_status = NULL;
+	if (mci->mci_rstatus != NULL)
+		free(mci->mci_rstatus);
+	mci->mci_rstatus = NULL;
+
+	rewind(fp);
+	ver = -1;
+	LineNumber = 0;
+	while (fgets(buf, sizeof buf, fp) != NULL)
+	{
+		LineNumber++;
+		p = strchr(buf, '\n');
+		if (p != NULL)
+			*p = '\0';
+		switch (buf[0])
+		{
+		  case 'V':		/* version stamp */
+			ver = atoi(&buf[1]);
+			if (ver < 0 || ver > 0)
+				syserr("Unknown host status version %d: %d max",
+					ver, 0);
+			break;
+
+		  case 'E':		/* UNIX error number */
+			mci->mci_errno = atoi(&buf[1]);
+			break;
+
+		  case 'H':		/* DNS error number */
+			mci->mci_herrno = atoi(&buf[1]);
+			break;
+
+		  case 'S':		/* UNIX exit status */
+			mci->mci_exitstat = atoi(&buf[1]);
+			break;
+
+		  case 'D':		/* DSN status */
+			mci->mci_status = newstr(&buf[1]);
+			break;
+
+		  case 'R':		/* SMTP status */
+			mci->mci_rstatus = newstr(&buf[1]);
+			break;
+
+		  case 'U':		/* last usage time */
+			mci->mci_lastuse = atol(&buf[1]);
+			break;
+
+		  case '.':		/* end of file */
+			return 0;
+
+		  default:
+			syserr("Unknown host status line \"%s\"", buf);
+			LineNumber = saveLineNumber;
+			return -1;
+		}
+	}
+	LineNumber = saveLineNumber;
+	if (ver < 0)
+		return -1;
+	return 0;
+}
+/*
+**  MCI_STORE_PERSISTENT -- Store persistent MCI information
+**
+**	Store information about host that is kept
+**	in common for all running sendmails.
+**
+**	Parameters:
+**		mci -- the host/connection to store persistent info for.
+**
+**	Returns:
+**		none.
+*/
+
+void
+mci_store_persistent(mci)
+	MCI *mci;
+{
+	int saveErrno = errno;
+
+	if (mci == NULL)
+	{
+		if (tTd(56, 1))
+			printf("mci_store_persistent: NULL mci\n");
+		return;
+	}
+
+	if (HostStatDir == NULL || mci->mci_host == NULL)
+		return;
+
+	if (tTd(56, 1))
+		printf("mci_store_persistent: Storing information for %s\n",
+			   mci->mci_host);
+
+	if (mci->mci_statfile == NULL)
+	{
+		if (tTd(56, 1))
+			printf("mci_store_persistent: no statfile\n");
+		return;
+	}
+
+	rewind(mci->mci_statfile);
+#if !NOFTRUNCATE
+	(void) ftruncate(fileno(mci->mci_statfile), (off_t) 0);
+#endif
+
+	fprintf(mci->mci_statfile, "V0\n");
+	fprintf(mci->mci_statfile, "E%d\n", mci->mci_errno);
+	fprintf(mci->mci_statfile, "H%d\n", mci->mci_herrno);
+	fprintf(mci->mci_statfile, "S%d\n", mci->mci_exitstat);
+	if (mci->mci_status != NULL)
+		fprintf(mci->mci_statfile, "D%.80s\n",
+			denlstring(mci->mci_status, TRUE, FALSE));
+	if (mci->mci_rstatus != NULL)
+		fprintf(mci->mci_statfile, "R%.80s\n",
+			denlstring(mci->mci_rstatus, TRUE, FALSE));
+	fprintf(mci->mci_statfile, "U%ld\n", mci->mci_lastuse);
+	fprintf(mci->mci_statfile, ".\n");
+
+	fflush(mci->mci_statfile);
+
+	errno = saveErrno;
+	return;
+}
+/*
+**  MCI_TRAVERSE_PERSISTENT -- walk persistent status tree
+**
+**	Recursively find all the mci host files in `pathname'.  Default to
+**		main host status directory if no path is provided.
+**	Call (*action)(pathname, host) for each file found.
+**
+**	Note: all information is collected in a list before it is processed.
+**	This may not be the best way to do it, but it seems safest, since
+**	the file system would be touched while we are attempting to traverse
+**	the directory tree otherwise (during purges).
+**
+**	Parameters:
+**		action -- function to call on each node.  If returns < 0,
+**			return immediately.
+**		pathname -- root of tree.  If null, use main host status
+**			directory.
+**
+**	Returns:
+**		< 0 -- if any action routine returns a negative value, that
+**			value is returned.
+**		0 -- if we successfully went to completion.
+*/
+
+int
+mci_traverse_persistent(action, pathname)
+	int (*action)();
+	char *pathname;
+{
+	struct stat statbuf;
+	DIR *d;
+	int ret;
+
+	if (pathname == NULL)
+		pathname = HostStatDir;
+	if (pathname == NULL)
+		return -1;
+
+	if (tTd(56, 1))
+		printf("mci_traverse: pathname is %s\n", pathname);
+
+	ret = stat(pathname, &statbuf);
+	if (ret < 0)
+	{
+		if (tTd(56, 2))
+			printf("mci_traverse: Failed to stat %s: %s\n",
+				pathname, errstring(errno));
+		return ret;
+	}
+	if (S_ISDIR(statbuf.st_mode))
+	{
+		struct dirent *e;
+		char *newptr;
+		char newpath[MAXPATHLEN+1];
+
+		if ((d = opendir(pathname)) == NULL)
+		{
+			if (tTd(56, 2))
+				printf("mci_traverse: opendir %s: %s\n",
+					pathname, errstring(errno));
+			return -1;
+		}
+
+		if (strlen(pathname) >= sizeof newpath - MAXNAMLEN - 3)
+		{
+			if (tTd(56, 2))
+				printf("mci_traverse: path \"%s\" too long",
+					pathname);
+			return -1;
+		}
+		strcpy(newpath, pathname);
+		newptr = newpath + strlen(newpath);
+		*newptr++ = '/';
+
+		while ((e = readdir(d)) != NULL)
+		{
+			if (e->d_name[0] == '.')
+				continue;
+
+			strncpy(newptr, e->d_name,
+				sizeof newpath - (newptr - newpath) - 1);
+			newpath[sizeof newpath - 1] = '\0';
+
+			ret = mci_traverse_persistent(action, newpath);
+			if (ret < 0)
+				break;
+
+			/*
+			**  The following appears to be
+			**  necessary during purges, since
+			**  we modify the directory structure
+			*/
+
+			if (action == mci_purge_persistent)
+				rewinddir(d);
+		}
+
+		/* purge (or whatever) the directory proper */
+		*--newptr = '\0';
+		ret = (*action)(newpath, NULL);
+		closedir(d);
+	}
+	else if (S_ISREG(statbuf.st_mode))
+	{
+		char *end = pathname + strlen(pathname) - 1;
+		char *start;
+		char *scan;
+		char host[MAXHOSTNAMELEN];
+		char *hostptr = host;
+		
+		/*
+		**  Reconstruct the host name from the path to the
+		**  persistent information.
+		*/
+
+		do
+		{
+			if (hostptr != host)
+				*(hostptr++) = '.';
+			start = end;
+			while (*(start - 1) != '/')
+				start--;
+
+			if (*end == '.')
+				end--;
+
+			for (scan = start; scan <= end; scan++)
+				*(hostptr++) = *scan;
+
+			end = start - 2;
+		} while (*end == '.');
+
+		*hostptr = '\0';
+
+		/*
+		** Do something with the file containing the persistent
+		** information.
+		*/
+		ret = (*action)(pathname, host);
+	}
+
+	return ret;
+}
+/*
+**  MCI_PRINT_PERSISTENT -- print persisten info
+**
+**	Dump the persistent information in the file 'pathname'
+**
+**	Parameters:
+**		pathname -- the pathname to the status file.
+**		hostname -- the corresponding host name.
+**
+**	Returns:
+**		0
+*/
+
+int
+mci_print_persistent(pathname, hostname)
+	char *pathname;
+	char *hostname;
+{
+	static int initflag = FALSE;
+	FILE *fp;
+	int width = Verbose ? 78 : 25;
+	bool locked;
+	MCI mcib;
+
+	/* skip directories */
+	if (hostname == NULL)
+		return 0;
+
+	if (!initflag)
+	{
+		initflag = TRUE;
+		printf(" -------------- Hostname --------------- How long ago ---------Results---------\n");
+	}
+
+	fp = safefopen(pathname, O_RDWR, FileMode,
+		       SFF_NOLOCK|SFF_NOLINK|SFF_OPENASROOT|SFF_REGONLY);
+
+	if (fp == NULL)
+	{
+		if (tTd(56, 1))
+			printf("mci_print_persistent: cannot open %s: %s\n",
+				pathname, errstring(errno));
+		return 0;
+	}
+
+	FileName = pathname;
+	bzero(&mcib, sizeof mcib);
+	if (mci_read_persistent(fp, &mcib) < 0)
+	{
+		syserr("%s: could not read status file", pathname);
+		fclose(fp);
+		FileName = NULL;
+		return 0;
+	}
+
+	locked = !lockfile(fileno(fp), pathname, "", LOCK_EX|LOCK_NB);
+	fclose(fp);
+	FileName = NULL;
+
+	printf("%c%-39s %12s ",
+		locked ? '*' : ' ', hostname,
+		pintvl(curtime() - mcib.mci_lastuse, TRUE));
+	if (mcib.mci_rstatus != NULL)
+		printf("%.*s\n", width, mcib.mci_rstatus);
+	else if (mcib.mci_exitstat == EX_TEMPFAIL && mcib.mci_errno != 0)
+		printf("Deferred: %.*s\n", width - 10, errstring(mcib.mci_errno));
+	else if (mcib.mci_exitstat != 0)
+	{
+		int i = mcib.mci_exitstat - EX__BASE;
+		extern int N_SysEx;
+		extern char *SysExMsg[];
+
+		if (i < 0 || i > N_SysEx)
+		{
+			char buf[80];
+
+			snprintf(buf, sizeof buf, "Unknown mailer error %d",
+				mcib.mci_exitstat);
+			printf("%.*s\n", width, buf);
+		}
+		else
+			printf("%.*s\n", width, &(SysExMsg[i])[5]);
+	}
+	else if (mcib.mci_errno == 0)
+		printf("OK\n");
+	else
+		printf("OK: %.*s\n", width - 4, errstring(mcib.mci_errno));
+
+	return 0;
+}
+/*
+**  MCI_PURGE_PERSISTENT -- Remove a persistence status file.
+**
+**	Parameters:
+**		pathname -- path to the status file.
+**		hostname -- name of host corresponding to that file.
+**			NULL if this is a directory (domain).
+**
+**	Returns:
+**		0
+*/
+
+int
+mci_purge_persistent(pathname, hostname)
+	char *pathname;
+	char *hostname;
+{
+	char *end = pathname + strlen(pathname) - 1;
+
+	if (tTd(56, 1))
+		printf("mci_purge_persistent: purging %s\n", pathname);
+
+	if (hostname != NULL)
+	{
+		/* remove the file */
+		if (unlink(pathname) < 0)
+		{
+			if (tTd(56, 2))
+				printf("mci_purge_persistent: failed to unlink %s: %s\n",
+					pathname, errstring(errno));
+		}
+	}
+	else
+	{
+		/* remove the directory */
+		if (*end != '.')
+			return 0;
+
+		if (tTd(56, 1))
+			printf("mci_purge_persistent: dpurge %s\n", pathname);
+
+		if (rmdir(pathname) < 0)
+		{
+			if (tTd(56, 2))
+				printf("mci_purge_persistent: rmdir %s: %s\n",
+					pathname, errstring(errno));
+		}
+		
+	}
+
+	return 0;
+}
+/*
+** MCI_GENERATE_PERSISTENT_PATH -- generate path from hostname
+**
+**	Given `host', convert from a.b.c to $QueueDir/.hoststat/c./b./a,
+**	putting the result into `path'.  if `createflag' is set, intervening
+**	directories will be created as needed.
+**
+**	Parameters:
+**		host -- host name to convert from.
+**		path -- place to store result.
+**		pathlen -- length of path buffer.
+**		createflag -- if set, create intervening directories as
+**			needed.
+**
+**	Returns:
+**		0 -- success
+**		-1 -- failure
+*/
+
+int
+mci_generate_persistent_path(host, path, pathlen, createflag)
+	const char *host;
+	char *path;
+	int pathlen;
+	bool createflag;
+{
+	char *elem, *p, *x, ch;
+	int ret = 0;
+	int len;
+	char t_host[MAXHOSTNAMELEN];
+
+	/*
+	**  Rationality check the arguments.
+	*/
+
+	if (host == NULL)
+	{
+		syserr("mci_generate_persistent_path: null host");
+		return -1;
+	}
+	if (path == NULL)
+	{
+		syserr("mci_generate_persistent_path: null path");
+		return -1;
+	}
+
+	if (tTd(56, 80))
+		printf("mci_generate_persistent_path(%s): ", host);
+
+	if (*host == '\0')
+		return -1;
+
+	/* make certain this is not a bracketed host number */
+	if (strlen(host) > sizeof t_host - 1)
+		return -1;
+	if (host[0] == '[')
+		strcpy(t_host, host + 1);
+	else	
+		strcpy(t_host, host);
+
+	/*
+	**  Delete any trailing dots from the hostname.
+	**  Leave 'elem' pointing at the \0.
+	*/
+
+	elem = t_host + strlen(t_host);
+	while (elem > t_host &&
+	       (elem[-1] == '.' || (host[0] == '[' && elem[-1] == ']')))
+		*--elem = '\0';
+
+	/* check for what will be the final length of the path */
+	len = strlen(HostStatDir) + 2;
+	for (p = (char *) host; *p != '\0'; p++)
+	{
+		if (*p == '|' || *p == '.')
+			len++;
+		len++;
+		if (p[0] == '.' && p[1] == '.')
+			return -1;
+	}
+	if (len > pathlen)
+		return -1;
+
+	strcpy(path, HostStatDir);
+	p = path + strlen(path);
+
+	while (elem > t_host)
+	{
+		if (!path_is_dir(path, createflag))
+		{
+			ret = -1;
+			break;
+		}
+		elem--;
+		while (elem >= t_host && *elem != '.')
+			elem--;
+		*p++ = '/';
+		x = elem + 1;
+		while ((ch = *x++) != '\0' && ch != '.')
+		{
+			if (isupper(ch))
+				ch = tolower(ch);
+			if (ch == '|')
+				*p++ = '|';	/* | -> || */
+			else if (ch == '/')
+				ch = '|';	/* / -> | */
+			*p++ = ch;
+		}
+		if (elem >= t_host)
+			*p++ = '.';
+		*p = '\0';
+	}
+
+	if (tTd(56, 80))
+	{
+		if (ret < 0)
+			printf("FAILURE %d\n", ret);
+		else
+			printf("SUCCESS %s\n", path);
+	}
+
+	return (ret);
+}
diff --git a/src/mime.c b/src/mime.c
new file mode 100644
index 0000000..3e5a610
--- /dev/null
+++ b/src/mime.c
@@ -0,0 +1,1187 @@
+/*
+ * Copyright (c) 1994, 1996-1997 Eric P. Allman
+ * Copyright (c) 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+# include "sendmail.h"
+# include <string.h>
+
+#ifndef lint
+static char sccsid[] = "@(#)mime.c	8.59 (Berkeley) 5/6/97";
+#endif /* not lint */
+
+/*
+**  MIME support.
+**
+**	I am indebted to John Beck of Hewlett-Packard, who contributed
+**	his code to me for inclusion.  As it turns out, I did not use
+**	his code since he used a "minimum change" approach that used
+**	several temp files, and I wanted a "minimum impact" approach
+**	that would avoid copying.  However, looking over his code
+**	helped me cement my understanding of the problem.
+**
+**	I also looked at, but did not directly use, Nathaniel
+**	Borenstein's "code.c" module.  Again, it functioned as
+**	a file-to-file translator, which did not fit within my
+**	design bounds, but it was a useful base for understanding
+**	the problem.
+*/
+
+#if MIME8TO7
+
+/* character set for hex and base64 encoding */
+char	Base16Code[] =	"0123456789ABCDEF";
+char	Base64Code[] =	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+/* types of MIME boundaries */
+#define MBT_SYNTAX	0	/* syntax error */
+#define MBT_NOTSEP	1	/* not a boundary */
+#define MBT_INTERMED	2	/* intermediate boundary (no trailing --) */
+#define MBT_FINAL	3	/* final boundary (trailing -- included) */
+
+static char	*MimeBoundaryNames[] =
+{
+	"SYNTAX",	"NOTSEP",	"INTERMED",	"FINAL"
+};
+
+bool	MapNLtoCRLF;
+
+extern int	mimeboundary __P((char *, char **));
+/*
+**  MIME8TO7 -- output 8 bit body in 7 bit format
+**
+**	The header has already been output -- this has to do the
+**	8 to 7 bit conversion.  It would be easy if we didn't have
+**	to deal with nested formats (multipart/xxx and message/rfc822).
+**
+**	We won't be called if we don't have to do a conversion, and
+**	appropriate MIME-Version: and Content-Type: fields have been
+**	output.  Any Content-Transfer-Encoding: field has not been
+**	output, and we can add it here.
+**
+**	Parameters:
+**		mci -- mailer connection information.
+**		header -- the header for this body part.
+**		e -- envelope.
+**		boundaries -- the currently pending message boundaries.
+**			NULL if we are processing the outer portion.
+**		flags -- to tweak processing.
+**
+**	Returns:
+**		An indicator of what terminated the message part:
+**		  MBT_FINAL -- the final boundary
+**		  MBT_INTERMED -- an intermediate boundary
+**		  MBT_NOTSEP -- an end of file
+*/
+
+struct args
+{
+	char	*field;		/* name of field */
+	char	*value;		/* value of that field */
+};
+
+int
+mime8to7(mci, header, e, boundaries, flags)
+	register MCI *mci;
+	HDR *header;
+	register ENVELOPE *e;
+	char **boundaries;
+	int flags;
+{
+	register char *p;
+	int linelen;
+	int bt;
+	off_t offset;
+	size_t sectionsize, sectionhighbits;
+	int i;
+	char *type;
+	char *subtype;
+	char *cte;
+	char **pvp;
+	int argc = 0;
+	char *bp;
+	bool use_qp = FALSE;
+	struct args argv[MAXMIMEARGS];
+	char bbuf[128];
+	char buf[MAXLINE];
+	char pvpbuf[MAXLINE];
+	extern u_char MimeTokenTab[256];
+	extern int mime_getchar __P((FILE *, char **, int *));
+	extern int mime_getchar_crlf __P((FILE *, char **, int *));
+
+	if (tTd(43, 1))
+	{
+		printf("mime8to7: flags = %x, boundaries =", flags);
+		if (boundaries[0] == NULL)
+			printf(" <none>");
+		else
+		{
+			for (i = 0; boundaries[i] != NULL; i++)
+				printf(" %s", boundaries[i]);
+		}
+		printf("\n");
+	}
+	MapNLtoCRLF = TRUE;
+	p = hvalue("Content-Transfer-Encoding", header);
+	if (p == NULL ||
+	    (pvp = prescan(p, '\0', pvpbuf, sizeof pvpbuf, NULL,
+			   MimeTokenTab)) == NULL ||
+	    pvp[0] == NULL)
+	{
+		cte = NULL;
+	}
+	else
+	{
+		cataddr(pvp, NULL, buf, sizeof buf, '\0');
+		cte = newstr(buf);
+	}
+
+	type = subtype = NULL;
+	p = hvalue("Content-Type", header);
+	if (p == NULL)
+	{
+		if (bitset(M87F_DIGEST, flags))
+			p = "message/rfc822";
+		else
+			p = "text/plain";
+	}
+	if (p != NULL &&
+	    (pvp = prescan(p, '\0', pvpbuf, sizeof pvpbuf, NULL,
+			   MimeTokenTab)) != NULL &&
+	    pvp[0] != NULL)
+	{
+		if (tTd(43, 40))
+		{
+			for (i = 0; pvp[i] != NULL; i++)
+				printf("pvp[%d] = \"%s\"\n", i, pvp[i]);
+		}
+		type = *pvp++;
+		if (*pvp != NULL && strcmp(*pvp, "/") == 0 &&
+		    *++pvp != NULL)
+		{
+			subtype = *pvp++;
+		}
+
+		/* break out parameters */
+		while (*pvp != NULL && argc < MAXMIMEARGS)
+		{
+			/* skip to semicolon separator */
+			while (*pvp != NULL && strcmp(*pvp, ";") != 0)
+				pvp++;
+			if (*pvp++ == NULL || *pvp == NULL)
+				break;
+
+			/* extract field name */
+			argv[argc].field = *pvp++;
+
+			/* see if there is a value */
+			if (*pvp != NULL && strcmp(*pvp, "=") == 0 &&
+			    (*++pvp == NULL || strcmp(*pvp, ";") != 0))
+			{
+				argv[argc].value = *pvp;
+				argc++;
+			}
+		}
+	}
+
+	/* check for disaster cases */
+	if (type == NULL)
+		type = "-none-";
+	if (subtype == NULL)
+		subtype = "-none-";
+
+	/* don't propogate some flags more than one level into the message */
+	flags &= ~M87F_DIGEST;
+
+	/*
+	**  Check for cases that can not be encoded.
+	**
+	**	For example, you can't encode certain kinds of types
+	**	or already-encoded messages.  If we find this case,
+	**	just copy it through.
+	*/
+
+	snprintf(buf, sizeof buf, "%.100s/%.100s", type, subtype);
+	if (wordinclass(buf, 'n') || (cte != NULL && !wordinclass(cte, 'e')))
+		flags |= M87F_NO8BIT;
+
+#ifdef USE_B_CLASS
+	if (wordinclass(buf, 'b') || wordinclass(type, 'b'))
+		MapNLtoCRLF = FALSE;
+#endif
+	if (wordinclass(buf, 'q') || wordinclass(type, 'q'))
+		use_qp = TRUE;
+
+	/*
+	**  Multipart requires special processing.
+	**
+	**	Do a recursive descent into the message.
+	*/
+
+	if (strcasecmp(type, "multipart") == 0 && !bitset(M87F_NO8BIT, flags))
+	{
+		int blen;
+
+		if (strcasecmp(subtype, "digest") == 0)
+			flags |= M87F_DIGEST;
+
+		for (i = 0; i < argc; i++)
+		{
+			if (strcasecmp(argv[i].field, "boundary") == 0)
+				break;
+		}
+		if (i >= argc || argv[i].value == NULL)
+		{
+			syserr("mime8to7: Content-Type: \"%s\": %s boundary",
+				i >= argc ? "missing" : "bogus", p);
+			p = "---";
+
+			/* avoid bounce loops */
+			e->e_flags |= EF_DONT_MIME;
+		}
+		else
+		{
+			p = argv[i].value;
+			stripquotes(p);
+		}
+		blen = strlen(p);
+		if (blen > sizeof bbuf - 1)
+		{
+			syserr("mime8to7: multipart boundary \"%s\" too long",
+				p);
+			blen = sizeof bbuf - 1;
+
+			/* avoid bounce loops */
+			e->e_flags |= EF_DONT_MIME;
+		}
+		strncpy(bbuf, p, blen);
+		bbuf[blen] = '\0';
+		if (tTd(43, 1))
+			printf("mime8to7: multipart boundary \"%s\"\n", bbuf);
+		for (i = 0; i < MAXMIMENESTING; i++)
+			if (boundaries[i] == NULL)
+				break;
+		if (i >= MAXMIMENESTING)
+		{
+			syserr("mime8to7: multipart nesting boundary too deep");
+
+			/* avoid bounce loops */
+			e->e_flags |= EF_DONT_MIME;
+		}
+		else
+		{
+			boundaries[i] = bbuf;
+			boundaries[i + 1] = NULL;
+		}
+		mci->mci_flags |= MCIF_INMIME;
+
+		/* skip the early "comment" prologue */
+		putline("", mci);
+		while (fgets(buf, sizeof buf, e->e_dfp) != NULL)
+		{
+			bt = mimeboundary(buf, boundaries);
+			if (bt != MBT_NOTSEP)
+				break;
+			putxline(buf, strlen(buf), mci, PXLF_MAPFROM|PXLF_STRIP8BIT);
+			if (tTd(43, 99))
+				printf("  ...%s", buf);
+		}
+		if (feof(e->e_dfp))
+			bt = MBT_FINAL;
+		while (bt != MBT_FINAL)
+		{
+			auto HDR *hdr = NULL;
+
+			snprintf(buf, sizeof buf, "--%s", bbuf);
+			putline(buf, mci);
+			if (tTd(43, 35))
+				printf("  ...%s\n", buf);
+			collect(e->e_dfp, FALSE, &hdr, e);
+			if (tTd(43, 101))
+				putline("+++after collect", mci);
+			putheader(mci, hdr, e);
+			if (tTd(43, 101))
+				putline("+++after putheader", mci);
+			bt = mime8to7(mci, hdr, e, boundaries, flags);
+		}
+		snprintf(buf, sizeof buf, "--%s--", bbuf);
+		putline(buf, mci);
+		if (tTd(43, 35))
+			printf("  ...%s\n", buf);
+		boundaries[i] = NULL;
+		mci->mci_flags &= ~MCIF_INMIME;
+
+		/* skip the late "comment" epilogue */
+		while (fgets(buf, sizeof buf, e->e_dfp) != NULL)
+		{
+			bt = mimeboundary(buf, boundaries);
+			if (bt != MBT_NOTSEP)
+				break;
+			putxline(buf, strlen(buf), mci, PXLF_MAPFROM|PXLF_STRIP8BIT);
+			if (tTd(43, 99))
+				printf("  ...%s", buf);
+		}
+		if (feof(e->e_dfp))
+			bt = MBT_FINAL;
+		if (tTd(43, 3))
+			printf("\t\t\tmime8to7=>%s (multipart)\n",
+				MimeBoundaryNames[bt]);
+		return bt;
+	}
+
+	/*
+	**  Message/xxx types -- recurse exactly once.
+	**
+	**	Class 's' is predefined to have "rfc822" only.
+	*/
+
+	if (strcasecmp(type, "message") == 0)
+	{
+		if (!wordinclass(subtype, 's'))
+		{
+			flags |= M87F_NO8BIT;
+		}
+		else
+		{
+			auto HDR *hdr = NULL;
+
+			putline("", mci);
+
+			mci->mci_flags |= MCIF_INMIME;
+			collect(e->e_dfp, FALSE, &hdr, e);
+			if (tTd(43, 101))
+				putline("+++after collect", mci);
+			putheader(mci, hdr, e);
+			if (tTd(43, 101))
+				putline("+++after putheader", mci);
+			if (hvalue("MIME-Version", hdr) == NULL)
+				putline("MIME-Version: 1.0", mci);
+			bt = mime8to7(mci, hdr, e, boundaries, flags);
+			mci->mci_flags &= ~MCIF_INMIME;
+			return bt;
+		}
+	}
+
+	/*
+	**  Non-compound body type
+	**
+	**	Compute the ratio of seven to eight bit characters;
+	**	use that as a heuristic to decide how to do the
+	**	encoding.
+	*/
+
+	sectionsize = sectionhighbits = 0;
+	if (!bitset(M87F_NO8BIT, flags))
+	{
+		/* remember where we were */
+		offset = ftell(e->e_dfp);
+		if (offset == -1)
+			syserr("mime8to7: cannot ftell on df%s", e->e_id);
+
+		/* do a scan of this body type to count character types */
+		while (fgets(buf, sizeof buf, e->e_dfp) != NULL)
+		{
+			if (mimeboundary(buf, boundaries) != MBT_NOTSEP)
+				break;
+			for (p = buf; *p != '\0'; p++)
+			{
+				/* count bytes with the high bit set */
+				sectionsize++;
+				if (bitset(0200, *p))
+					sectionhighbits++;
+			}
+
+			/*
+			**  Heuristic: if 1/4 of the first 4K bytes are 8-bit,
+			**  assume base64.  This heuristic avoids double-reading
+			**  large graphics or video files.
+			*/
+
+			if (sectionsize >= 4096 &&
+			    sectionhighbits > sectionsize / 4)
+				break;
+		}
+
+		/* return to the original offset for processing */
+		/* XXX use relative seeks to handle >31 bit file sizes? */
+		if (fseek(e->e_dfp, offset, SEEK_SET) < 0)
+			syserr("mime8to7: cannot fseek on df%s", e->e_id);
+		else
+			clearerr(e->e_dfp);
+	}
+
+	/*
+	**  Heuristically determine encoding method.
+	**	If more than 1/8 of the total characters have the
+	**	eighth bit set, use base64; else use quoted-printable.
+	**	However, only encode binary encoded data as base64,
+	**	since otherwise the NL=>CRLF mapping will be a problem.
+	*/
+
+	if (tTd(43, 8))
+	{
+		printf("mime8to7: %ld high bit(s) in %ld byte(s), cte=%s, type=%s/%s\n",
+			(long) sectionhighbits, (long) sectionsize,
+			cte == NULL ? "[none]" : cte,
+			type == NULL ? "[none]" : type,
+			subtype == NULL ? "[none]" : subtype);
+	}
+	if (cte != NULL && strcasecmp(cte, "binary") == 0)
+		sectionsize = sectionhighbits;
+	linelen = 0;
+	bp = buf;
+	if (sectionhighbits == 0)
+	{
+		/* no encoding necessary */
+		if (cte != NULL)
+		{
+			snprintf(buf, sizeof buf,
+				"Content-Transfer-Encoding: %.200s", cte);
+			putline(buf, mci);
+			if (tTd(43, 36))
+				printf("  ...%s\n", buf);
+		}
+		putline("", mci);
+		mci->mci_flags &= ~MCIF_INHEADER;
+		while (fgets(buf, sizeof buf, e->e_dfp) != NULL)
+		{
+			bt = mimeboundary(buf, boundaries);
+			if (bt != MBT_NOTSEP)
+				break;
+			putline(buf, mci);
+		}
+		if (feof(e->e_dfp))
+			bt = MBT_FINAL;
+	}
+	else if (!MapNLtoCRLF ||
+		 (sectionsize / 8 < sectionhighbits && !use_qp))
+	{
+		/* use base64 encoding */
+		int c1, c2;
+
+		if (tTd(43, 36))
+			printf("  ...Content-Transfer-Encoding: base64\n");
+		putline("Content-Transfer-Encoding: base64", mci);
+		snprintf(buf, sizeof buf,
+			"X-MIME-Autoconverted: from 8bit to base64 by %s id %s",
+			MyHostName, e->e_id);
+		putline(buf, mci);
+		putline("", mci);
+		mci->mci_flags &= ~MCIF_INHEADER;
+		while ((c1 = mime_getchar_crlf(e->e_dfp, boundaries, &bt)) != EOF)
+		{
+			if (linelen > 71)
+			{
+				*bp = '\0';
+				putline(buf, mci);
+				linelen = 0;
+				bp = buf;
+			}
+			linelen += 4;
+			*bp++ = Base64Code[(c1 >> 2)];
+			c1 = (c1 & 0x03) << 4;
+			c2 = mime_getchar_crlf(e->e_dfp, boundaries, &bt);
+			if (c2 == EOF)
+			{
+				*bp++ = Base64Code[c1];
+				*bp++ = '=';
+				*bp++ = '=';
+				break;
+			}
+			c1 |= (c2 >> 4) & 0x0f;
+			*bp++ = Base64Code[c1];
+			c1 = (c2 & 0x0f) << 2;
+			c2 = mime_getchar_crlf(e->e_dfp, boundaries, &bt);
+			if (c2 == EOF)
+			{
+				*bp++ = Base64Code[c1];
+				*bp++ = '=';
+				break;
+			}
+			c1 |= (c2 >> 6) & 0x03;
+			*bp++ = Base64Code[c1];
+			*bp++ = Base64Code[c2 & 0x3f];
+		}
+		*bp = '\0';
+		putline(buf, mci);
+	}
+	else
+	{
+		/* use quoted-printable encoding */
+		int c1, c2;
+		int fromstate;
+		BITMAP badchars;
+
+		/* set up map of characters that must be mapped */
+		clrbitmap(badchars);
+		for (c1 = 0x00; c1 < 0x20; c1++)
+			setbitn(c1, badchars);
+		clrbitn('\t', badchars);
+		for (c1 = 0x7f; c1 < 0x100; c1++)
+			setbitn(c1, badchars);
+		setbitn('=', badchars);
+		if (bitnset(M_EBCDIC, mci->mci_mailer->m_flags))
+			for (p = "!\"#$@[\\]^`{|}~"; *p != '\0'; p++)
+				setbitn(*p, badchars);
+
+		if (tTd(43, 36))
+			printf("  ...Content-Transfer-Encoding: quoted-printable\n");
+		putline("Content-Transfer-Encoding: quoted-printable", mci);
+		snprintf(buf, sizeof buf,
+			"X-MIME-Autoconverted: from 8bit to quoted-printable by %s id %s",
+			MyHostName, e->e_id);
+		putline(buf, mci);
+		putline("", mci);
+		mci->mci_flags &= ~MCIF_INHEADER;
+		fromstate = 0;
+		c2 = '\n';
+		while ((c1 = mime_getchar(e->e_dfp, boundaries, &bt)) != EOF)
+		{
+			if (c1 == '\n')
+			{
+				if (c2 == ' ' || c2 == '\t')
+				{
+					*bp++ = '=';
+					*bp++ = Base16Code[(c2 >> 4) & 0x0f];
+					*bp++ = Base16Code[c2 & 0x0f];
+				}
+				if (buf[0] == '.' && bp == &buf[1])
+				{
+					buf[0] = '=';
+					*bp++ = Base16Code[('.' >> 4) & 0x0f];
+					*bp++ = Base16Code['.' & 0x0f];
+				}
+				*bp = '\0';
+				putline(buf, mci);
+				linelen = fromstate = 0;
+				bp = buf;
+				c2 = c1;
+				continue;
+			}
+			if (c2 == ' ' && linelen == 4 && fromstate == 4 &&
+			    bitnset(M_ESCFROM, mci->mci_mailer->m_flags))
+			{
+				*bp++ = '=';
+				*bp++ = '2';
+				*bp++ = '0';
+				linelen += 3;
+			}
+			else if (c2 == ' ' || c2 == '\t')
+			{
+				*bp++ = c2;
+				linelen++;
+			}
+			if (linelen > 72 &&
+			    (linelen > 75 || c1 != '.' ||
+			     (linelen > 73 && c2 == '.')))
+			{
+				if (linelen > 73 && c2 == '.')
+					bp--;
+				else
+					c2 = '\n';
+				*bp++ = '=';
+				*bp = '\0';
+				putline(buf, mci);
+				linelen = fromstate = 0;
+				bp = buf;
+				if (c2 == '.')
+				{
+					*bp++ = '.';
+					linelen++;
+				}
+			}
+			if (bitnset(c1 & 0xff, badchars))
+			{
+				*bp++ = '=';
+				*bp++ = Base16Code[(c1 >> 4) & 0x0f];
+				*bp++ = Base16Code[c1 & 0x0f];
+				linelen += 3;
+			}
+			else if (c1 != ' ' && c1 != '\t')
+			{
+				if (linelen < 4 && c1 == "From"[linelen])
+					fromstate++;
+				*bp++ = c1;
+				linelen++;
+			}
+			c2 = c1;
+		}
+
+		/* output any saved character */
+		if (c2 == ' ' || c2 == '\t')
+		{
+			*bp++ = '=';
+			*bp++ = Base16Code[(c2 >> 4) & 0x0f];
+			*bp++ = Base16Code[c2 & 0x0f];
+			linelen += 3;
+		}
+
+		if (linelen > 0 || boundaries[0] != NULL)
+		{
+			*bp = '\0';
+			putline(buf, mci);
+		}
+
+	}
+	if (tTd(43, 3))
+		printf("\t\t\tmime8to7=>%s (basic)\n", MimeBoundaryNames[bt]);
+	return bt;
+}
+/*
+**  MIME_GETCHAR -- get a character for MIME processing
+**
+**	Treats boundaries as EOF.
+**
+**	Parameters:
+**		fp -- the input file.
+**		boundaries -- the current MIME boundaries.
+**		btp -- if the return value is EOF, *btp is set to
+**			the type of the boundary.
+**
+**	Returns:
+**		The next character in the input stream.
+*/
+
+int
+mime_getchar(fp, boundaries, btp)
+	register FILE *fp;
+	char **boundaries;
+	int *btp;
+{
+	int c;
+	static u_char *bp = NULL;
+	static int buflen = 0;
+	static bool atbol = TRUE;	/* at beginning of line */
+	static int bt = MBT_SYNTAX;	/* boundary type of next EOF */
+	static u_char buf[128];		/* need not be a full line */
+
+	if (buflen > 0)
+	{
+		buflen--;
+		return *bp++;
+	}
+	bp = buf;
+	buflen = 0;
+	c = getc(fp);
+	if (c == '\n')
+	{
+		/* might be part of a MIME boundary */
+		*bp++ = c;
+		atbol = TRUE;
+		c = getc(fp);
+		if (c == '\n')
+		{
+			ungetc(c, fp);
+			return c;
+		}
+	}
+	if (c != EOF)
+		*bp++ = c;
+	else
+		bt = MBT_FINAL;
+	if (atbol && c == '-')
+	{
+		/* check for a message boundary */
+		c = getc(fp);
+		if (c != '-')
+		{
+			if (c != EOF)
+				*bp++ = c;
+			else
+				bt = MBT_FINAL;
+			buflen = bp - buf - 1;
+			bp = buf;
+			return *bp++;
+		}
+
+		/* got "--", now check for rest of separator */
+		*bp++ = '-';
+		while (bp < &buf[sizeof buf - 2] &&
+		       (c = getc(fp)) != EOF && c != '\n')
+		{
+			*bp++ = c;
+		}
+		*bp = '\0';
+		bt = mimeboundary((char *) &buf[1], boundaries);
+		switch (bt)
+		{
+		  case MBT_FINAL:
+		  case MBT_INTERMED:
+			/* we have a message boundary */
+			buflen = 0;
+			*btp = bt;
+			return EOF;
+		}
+
+		atbol = c == '\n';
+		if (c != EOF)
+			*bp++ = c;
+	}
+
+	buflen = bp - buf - 1;
+	if (buflen < 0)
+	{
+		*btp = bt;
+		return EOF;
+	}
+	bp = buf;
+	return *bp++;
+}
+/*
+**  MIME_GETCHAR_CRLF -- do mime_getchar, but translate NL => CRLF
+**
+**	Parameters:
+**		fp -- the input file.
+**		boundaries -- the current MIME boundaries.
+**		btp -- if the return value is EOF, *btp is set to
+**			the type of the boundary.
+**
+**	Returns:
+**		The next character in the input stream.
+*/
+
+int
+mime_getchar_crlf(fp, boundaries, btp)
+	register FILE *fp;
+	char **boundaries;
+	int *btp;
+{
+	static bool sendlf = FALSE;
+	int c;
+
+	if (sendlf)
+	{
+		sendlf = FALSE;
+		return '\n';
+	}
+	c = mime_getchar(fp, boundaries, btp);
+	if (c == '\n' && MapNLtoCRLF)
+	{
+		sendlf = TRUE;
+		return '\r';
+	}
+	return c;
+}
+/*
+**  MIMEBOUNDARY -- determine if this line is a MIME boundary & its type
+**
+**	Parameters:
+**		line -- the input line.
+**		boundaries -- the set of currently pending boundaries.
+**
+**	Returns:
+**		MBT_NOTSEP -- if this is not a separator line
+**		MBT_INTERMED -- if this is an intermediate separator
+**		MBT_FINAL -- if this is a final boundary
+**		MBT_SYNTAX -- if this is a boundary for the wrong
+**			enclosure -- i.e., a syntax error.
+*/
+
+int
+mimeboundary(line, boundaries)
+	register char *line;
+	char **boundaries;
+{
+	int type = MBT_NOTSEP;
+	int i;
+	int savec;
+	extern int isboundary __P((char *, char **));
+
+	if (line[0] != '-' || line[1] != '-' || boundaries == NULL)
+		return MBT_NOTSEP;
+	i = strlen(line);
+	if (line[i - 1] == '\n')
+		i--;
+
+	/* strip off trailing whitespace */
+	while (line[i - 1] == ' ' || line[i - 1] == '\t')
+		i--;
+	savec = line[i];
+	line[i] = '\0';
+
+	if (tTd(43, 5))
+		printf("mimeboundary: line=\"%s\"... ", line);
+
+	/* check for this as an intermediate boundary */
+	if (isboundary(&line[2], boundaries) >= 0)
+		type = MBT_INTERMED;
+	else if (i > 2 && strncmp(&line[i - 2], "--", 2) == 0)
+	{
+		/* check for a final boundary */
+		line[i - 2] = '\0';
+		if (isboundary(&line[2], boundaries) >= 0)
+			type = MBT_FINAL;
+		line[i - 2] = '-';
+	}
+
+	line[i] = savec;
+	if (tTd(43, 5))
+		printf("%s\n", MimeBoundaryNames[type]);
+	return type;
+}
+/*
+**  DEFCHARSET -- return default character set for message
+**
+**	The first choice for character set is for the mailer
+**	corresponding to the envelope sender.  If neither that
+**	nor the global configuration file has a default character
+**	set defined, return "unknown-8bit" as recommended by
+**	RFC 1428 section 3.
+**
+**	Parameters:
+**		e -- the envelope for this message.
+**
+**	Returns:
+**		The default character set for that mailer.
+*/
+
+char *
+defcharset(e)
+	register ENVELOPE *e;
+{
+	if (e != NULL && e->e_from.q_mailer != NULL &&
+	    e->e_from.q_mailer->m_defcharset != NULL)
+		return e->e_from.q_mailer->m_defcharset;
+	if (DefaultCharSet != NULL)
+		return DefaultCharSet;
+	return "unknown-8bit";
+}
+/*
+**  ISBOUNDARY -- is a given string a currently valid boundary?
+**
+**	Parameters:
+**		line -- the current input line.
+**		boundaries -- the list of valid boundaries.
+**
+**	Returns:
+**		The index number in boundaries if the line is found.
+**		-1 -- otherwise.
+**
+*/
+
+int
+isboundary(line, boundaries)
+	char *line;
+	char **boundaries;
+{
+	register int i;
+
+	for (i = 0; boundaries[i] != NULL; i++)
+	{
+		if (strcmp(line, boundaries[i]) == 0)
+			return i;
+	}
+	return -1;
+}
+
+#endif /* MIME8TO7 */
+
+#if MIME7TO8
+
+/*
+**  MIME7TO8 -- output 7 bit encoded MIME body in 8 bit format
+**
+**  This is a hack. Supports translating the two 7-bit body-encodings
+**  (quoted-printable and base64) to 8-bit coded bodies.
+**
+**  There is not much point in supporting multipart here, as the UA
+**  will be able to deal with encoded MIME bodies if it can parse MIME
+**  multipart messages.
+**
+**  Note also that we wont be called unless it is a text/plain MIME
+**  message, encoded base64 or QP and mailer flag '9' has been defined
+**  on mailer.
+**
+**  Contributed by Marius Olaffson <marius@rhi.hi.is>.
+**
+**	Parameters:
+**		mci -- mailer connection information.
+**		header -- the header for this body part.
+**		e -- envelope.
+**
+**	Returns:
+**		none.
+*/
+
+extern int	mime_fromqp __P((u_char *, u_char **, int, int));
+
+static char index_64[128] =
+{
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
+	52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1,-1,-1,-1,
+	-1, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,
+	15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
+	-1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
+	41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
+};
+
+#define CHAR64(c)  (((c) < 0 || (c) > 127) ? -1 : index_64[(c)])
+
+
+void
+mime7to8(mci, header, e)
+	register MCI *mci;
+	HDR *header;
+	register ENVELOPE *e;
+{
+	register char *p;
+	char *cte;
+	char **pvp;
+	u_char *fbufp;
+	char buf[MAXLINE];
+	u_char fbuf[MAXLINE + 1];
+	char pvpbuf[MAXLINE];
+	extern u_char MimeTokenTab[256];
+
+	p = hvalue("Content-Transfer-Encoding", header);
+	if (p == NULL ||
+	    (pvp = prescan(p, '\0', pvpbuf, sizeof pvpbuf, NULL,
+			   MimeTokenTab)) == NULL ||
+	    pvp[0] == NULL)
+	{
+		/* "can't happen" -- upper level should have caught this */
+		syserr("mime7to8: unparsable CTE %s", p == NULL ? "<NULL>" : p);
+
+		/* avoid bounce loops */
+		e->e_flags |= EF_DONT_MIME;
+
+		/* cheap failsafe algorithm -- should work on text/plain */
+		if (p != NULL)
+		{
+			snprintf(buf, sizeof buf,
+				"Content-Transfer-Encoding: %s", p);
+			putline(buf, mci);
+		}
+		putline("", mci);
+		mci->mci_flags &= ~MCIF_INHEADER;
+		while (fgets(buf, sizeof buf, e->e_dfp) != NULL)
+			putline(buf, mci);
+		return;
+	}
+	cataddr(pvp, NULL, buf, sizeof buf, '\0');
+	cte = newstr(buf);
+
+	putline("Content-Transfer-Encoding: 8bit", mci);
+	snprintf(buf, sizeof buf,
+		"X-MIME-Autoconverted: from %.200s to 8bit by %s id %s",
+		cte, MyHostName, e->e_id);
+	putline(buf, mci);
+	putline("", mci);
+	mci->mci_flags &= ~MCIF_INHEADER;
+
+	/*
+	**  Translate body encoding to 8-bit.  Supports two types of
+	**  encodings; "base64" and "quoted-printable". Assume qp if
+	**  it is not base64.
+	*/
+
+	if (strcasecmp(cte, "base64") == 0)
+	{
+		int c1, c2, c3, c4;
+
+		fbufp = fbuf;
+		while ((c1 = fgetc(e->e_dfp)) != EOF)
+		{
+			if (isascii(c1) && isspace(c1))
+				continue;
+
+			do
+			{
+				c2 = fgetc(e->e_dfp);
+			} while (isascii(c2) && isspace(c2));
+			if (c2 == EOF)
+				break;
+
+			do
+			{
+				c3 = fgetc(e->e_dfp);
+			} while (isascii(c3) && isspace(c3));
+			if (c3 == EOF)
+				break;
+
+			do
+			{
+				c4 = fgetc(e->e_dfp);
+			} while (isascii(c4) && isspace(c4));
+			if (c4 == EOF)
+				break;
+
+			if (c1 == '=' || c2 == '=')
+				continue;
+			c1 = CHAR64(c1);
+			c2 = CHAR64(c2);
+
+			*fbufp = (c1 << 2) | ((c2 & 0x30) >> 4);
+			if (*fbufp++ == '\n' || fbufp >= &fbuf[MAXLINE])
+			{
+				if (*--fbufp != '\n' ||
+				    (fbufp > fbuf && *--fbufp != '\r'))
+					fbufp++;
+				putxline((char *) fbuf, fbufp - fbuf,
+					 mci, PXLF_MAPFROM);
+				fbufp = fbuf;
+			}
+			if (c3 == '=')
+				continue;
+			c3 = CHAR64(c3);
+			*fbufp = ((c2 & 0x0f) << 4) | ((c3 & 0x3c) >> 2);
+			if (*fbufp++ == '\n' || fbufp >= &fbuf[MAXLINE])
+			{
+				if (*--fbufp != '\n' ||
+				    (fbufp > fbuf && *--fbufp != '\r'))
+					fbufp++;
+				putxline((char *) fbuf, fbufp - fbuf,
+					 mci, PXLF_MAPFROM);
+				fbufp = fbuf;
+			}
+			if (c4 == '=')
+				continue;
+			c4 = CHAR64(c4);
+			*fbufp = ((c3 & 0x03) << 6) | c4;
+			if (*fbufp++ == '\n' || fbufp >= &fbuf[MAXLINE])
+			{
+				if (*--fbufp != '\n' ||
+				    (fbufp > fbuf && *--fbufp != '\r'))
+					fbufp++;
+				putxline((char *) fbuf, fbufp - fbuf,
+					 mci, PXLF_MAPFROM);
+				fbufp = fbuf;
+			}
+		}
+	}
+	else
+	{
+		/* quoted-printable */
+		fbufp = fbuf;
+		while (fgets(buf, sizeof buf, e->e_dfp) != NULL)
+		{
+			if (mime_fromqp((u_char *) buf, &fbufp, 0,
+					&fbuf[MAXLINE] - fbufp) == 0)
+				continue;
+
+			if (fbufp - fbuf > 0)
+				putxline((char *) fbuf, fbufp - fbuf - 1, mci,
+					 PXLF_MAPFROM);
+			fbufp = fbuf;
+		}
+	}
+
+	/* force out partial last line */
+	if (fbufp > fbuf)
+	{
+		*fbufp = '\0';
+		putxline((char *) fbuf, fbufp - fbuf, mci, PXLF_MAPFROM);
+	}
+	if (tTd(43, 3))
+		printf("\t\t\tmime7to8 => %s to 8bit done\n", cte);
+}
+/*
+**  The following is based on Borenstein's "codes.c" module, with simplifying
+**  changes as we do not deal with multipart, and to do the translation in-core,
+**  with an attempt to prevent overrun of output buffers.
+**
+**  What is needed here are changes to defned this code better against
+**  bad encodings. Questionable to always return 0xFF for bad mappings.
+*/
+
+static char index_hex[128] =
+{
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	0, 1, 2, 3,  4, 5, 6, 7,  8, 9,-1,-1, -1,-1,-1,-1,
+	-1,10,11,12, 13,14,15,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	-1,10,11,12, 13,14,15,-1, -1,-1,-1,-1, -1,-1,-1,-1,
+	-1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1
+};
+
+#define HEXCHAR(c)  (((c) < 0 || (c) > 127) ? -1 : index_hex[(c)])
+
+int
+mime_fromqp(infile, outfile, state, maxlen)
+	u_char *infile;
+	u_char **outfile;
+	int state;		/* Decoding body (0) or header (1) */
+	int maxlen;		/* Max # of chars allowed in outfile */
+{
+	int c1, c2;
+	int nchar = 0;
+
+	while ((c1 = *infile++) != '\0')
+	{
+		if (c1 == '=')
+		{
+			if ((c1 = *infile++) == 0)
+				break;
+
+			if (c1 == '\n') /* ignore it */
+			{
+				if (state == 0)
+					return 0;
+			}
+			else
+			{
+				if ((c2 = *infile++) == '\0')
+					break;
+
+				c1 = HEXCHAR(c1);
+				c2 = HEXCHAR(c2);
+
+				if (++nchar > maxlen)
+					break;
+
+				*(*outfile)++ = c1 << 4 | c2;
+			}
+		}
+		else
+		{
+			if (state == 1 && c1 == '_')
+				c1 = ' ';
+
+			if (++nchar > maxlen)
+				break;
+
+			*(*outfile)++ = c1;
+
+			if (c1 == '\n')
+				break;
+		}
+	}
+	*(*outfile)++ = '\0';
+	return 1;
+}
+
+
+#endif /* MIME7TO8 */
diff --git a/src/newaliases.0 b/src/newaliases.0
new file mode 100644
index 0000000..648bab7
--- /dev/null
+++ b/src/newaliases.0
@@ -0,0 +1,27 @@
+NEWALIASES(1)                BSD Reference Manual                NEWALIASES(1)
+
+NNAAMMEE
+     nneewwaalliiaasseess - rebuild the data base for the mail aliases file
+
+SSYYNNOOPPSSIISS
+     nneewwaalliiaasseess
+
+DDEESSCCRRIIPPTTIIOONN
+     NNeewwaalliiaasseess rebuilds the random access data base for the mail aliases file
+     _/_e_t_c_/_a_l_i_a_s_e_s. It must be run each time this file is changed in order for
+     the change to take effect.
+
+     NNeewwaalliiaasseess is identical to ``sendmail -bi''.
+
+     The nneewwaalliiaasseess utility exits 0 on success, and >0 if an error occurs.
+
+FFIILLEESS
+     /etc/aliases  The mail aliases file
+
+SSEEEE AALLSSOO
+     aliases(5),  sendmail(8)
+
+HHIISSTTOORRYY
+     The nneewwaalliiaasseess command appeared in 4.0BSD.
+
+4th Berkeley Distribution      February 22, 1994                             1
diff --git a/src/newaliases.1 b/src/newaliases.1
new file mode 100644
index 0000000..7168c13
--- /dev/null
+++ b/src/newaliases.1
@@ -0,0 +1,69 @@
+.\" Copyright (c) 1983, 1997 Eric P. Allman
+.\" Copyright (c) 1985, 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)newaliases.1	8.5 (Berkeley) 2/1/97
+.\"
+.Dd February 1, 1997
+.Dt NEWALIASES 1
+.Os BSD 4
+.Sh NAME
+.Nm newaliases
+.Nd rebuild the data base for the mail aliases file
+.Sh SYNOPSIS
+.Nm newaliases
+.Sh DESCRIPTION
+.Nm Newaliases
+rebuilds the random access data base for the mail aliases file
+.Pa /etc/aliases .
+It must be run each time this file is changed in order
+for the change to take effect.
+.Pp
+.Nm Newaliases
+is identical to
+.Dq Li "sendmail -bi" .
+.Pp
+The
+.Nm newaliases
+utility exits 0 on success, and >0 if an error occurs.
+.Sh FILES
+.Bl -tag -width /etc/aliases -compact
+.It Pa /etc/aliases
+The mail aliases file
+.El
+.Sh SEE ALSO
+.Xr aliases 5 ,
+.Xr sendmail 8
+.Sh HISTORY
+The
+.Nm newaliases
+command appeared in
+.Bx 4.0 .
diff --git a/src/parseaddr.c b/src/parseaddr.c
new file mode 100644
index 0000000..7831834
--- /dev/null
+++ b/src/parseaddr.c
@@ -0,0 +1,2462 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)parseaddr.c	8.132 (Berkeley) 10/20/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+/*
+**  PARSEADDR -- Parse an address
+**
+**	Parses an address and breaks it up into three parts: a
+**	net to transmit the message on, the host to transmit it
+**	to, and a user on that host.  These are loaded into an
+**	ADDRESS header with the values squirreled away if necessary.
+**	The "user" part may not be a real user; the process may
+**	just reoccur on that machine.  For example, on a machine
+**	with an arpanet connection, the address
+**		csvax.bill@berkeley
+**	will break up to a "user" of 'csvax.bill' and a host
+**	of 'berkeley' -- to be transmitted over the arpanet.
+**
+**	Parameters:
+**		addr -- the address to parse.
+**		a -- a pointer to the address descriptor buffer.
+**			If NULL, a header will be created.
+**		flags -- describe detail for parsing.  See RF_ definitions
+**			in sendmail.h.
+**		delim -- the character to terminate the address, passed
+**			to prescan.
+**		delimptr -- if non-NULL, set to the location of the
+**			delim character that was found.
+**		e -- the envelope that will contain this address.
+**
+**	Returns:
+**		A pointer to the address descriptor header (`a' if
+**			`a' is non-NULL).
+**		NULL on error.
+**
+**	Side Effects:
+**		none
+*/
+
+/* following delimiters are inherent to the internal algorithms */
+# define DELIMCHARS	"()<>,;\r\n"	/* default word delimiters */
+
+ADDRESS *
+parseaddr(addr, a, flags, delim, delimptr, e)
+	char *addr;
+	register ADDRESS *a;
+	int flags;
+	int delim;
+	char **delimptr;
+	register ENVELOPE *e;
+{
+	register char **pvp;
+	auto char *delimptrbuf;
+	bool queueup;
+	char pvpbuf[PSBUFSIZE];
+	extern ADDRESS *buildaddr();
+	extern bool invalidaddr();
+	extern void allocaddr __P((ADDRESS *, int, char *));
+
+	/*
+	**  Initialize and prescan address.
+	*/
+
+	e->e_to = addr;
+	if (tTd(20, 1))
+		printf("\n--parseaddr(%s)\n", addr);
+
+	if (delimptr == NULL)
+		delimptr = &delimptrbuf;
+
+	pvp = prescan(addr, delim, pvpbuf, sizeof pvpbuf, delimptr, NULL);
+	if (pvp == NULL)
+	{
+		if (tTd(20, 1))
+			printf("parseaddr-->NULL\n");
+		return (NULL);
+	}
+
+	if (invalidaddr(addr, delim == '\0' ? NULL : *delimptr))
+	{
+		if (tTd(20, 1))
+			printf("parseaddr-->bad address\n");
+		return NULL;
+	}
+
+	/*
+	**  Save addr if we are going to have to.
+	**
+	**	We have to do this early because there is a chance that
+	**	the map lookups in the rewriting rules could clobber
+	**	static memory somewhere.
+	*/
+
+	if (bitset(RF_COPYPADDR, flags) && addr != NULL)
+	{
+		char savec = **delimptr;
+
+		if (savec != '\0')
+			**delimptr = '\0';
+		e->e_to = addr = newstr(addr);
+		if (savec != '\0')
+			**delimptr = savec;
+	}
+
+	/*
+	**  Apply rewriting rules.
+	**	Ruleset 0 does basic parsing.  It must resolve.
+	*/
+
+	queueup = FALSE;
+	if (rewrite(pvp, 3, 0, e) == EX_TEMPFAIL)
+		queueup = TRUE;
+	if (rewrite(pvp, 0, 0, e) == EX_TEMPFAIL)
+		queueup = TRUE;
+
+
+	/*
+	**  Build canonical address from pvp.
+	*/
+
+	a = buildaddr(pvp, a, flags, e);
+
+	/*
+	**  Make local copies of the host & user and then
+	**  transport them out.
+	*/
+
+	allocaddr(a, flags, addr);
+	if (bitset(QBADADDR, a->q_flags))
+		return a;
+
+	/*
+	**  If there was a parsing failure, mark it for queueing.
+	*/
+
+	if (queueup && OpMode != MD_INITALIAS)
+	{
+		char *msg = "Transient parse error -- message queued for future delivery";
+
+		if (e->e_sendmode == SM_DEFER)
+			msg = "Deferring message until queue run";
+		if (tTd(20, 1))
+			printf("parseaddr: queuing message\n");
+		message(msg);
+		if (e->e_message == NULL && e->e_sendmode != SM_DEFER)
+			e->e_message = newstr(msg);
+		a->q_flags |= QQUEUEUP;
+		a->q_status = "4.4.3";
+	}
+
+	/*
+	**  Compute return value.
+	*/
+
+	if (tTd(20, 1))
+	{
+		printf("parseaddr-->");
+		printaddr(a, FALSE);
+	}
+
+	return (a);
+}
+/*
+**  INVALIDADDR -- check for address containing meta-characters
+**
+**	Parameters:
+**		addr -- the address to check.
+**
+**	Returns:
+**		TRUE -- if the address has any "wierd" characters
+**		FALSE -- otherwise.
+*/
+
+bool
+invalidaddr(addr, delimptr)
+	register char *addr;
+	char *delimptr;
+{
+	char savedelim = '\0';
+
+	if (delimptr != NULL)
+	{
+		savedelim = *delimptr;
+		if (savedelim != '\0')
+			*delimptr = '\0';
+	}
+	if (strlen(addr) > TOBUFSIZE - 2)
+	{
+		usrerr("553 Address too long (%d bytes max)", TOBUFSIZE - 2);
+		goto failure;
+	}
+	for (; *addr != '\0'; addr++)
+	{
+		if ((*addr & 0340) == 0200)
+			break;
+	}
+	if (*addr == '\0')
+	{
+		if (delimptr != NULL && savedelim != '\0')
+			*delimptr = savedelim;
+		return FALSE;
+	}
+	setstat(EX_USAGE);
+	usrerr("553 Address contained invalid control characters");
+failure:
+	if (delimptr != NULL && savedelim != '\0')
+		*delimptr = savedelim;
+	return TRUE;
+}
+/*
+**  ALLOCADDR -- do local allocations of address on demand.
+**
+**	Also lowercases the host name if requested.
+**
+**	Parameters:
+**		a -- the address to reallocate.
+**		flags -- the copy flag (see RF_ definitions in sendmail.h
+**			for a description).
+**		paddr -- the printname of the address.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Copies portions of a into local buffers as requested.
+*/
+
+void
+allocaddr(a, flags, paddr)
+	register ADDRESS *a;
+	int flags;
+	char *paddr;
+{
+	if (tTd(24, 4))
+		printf("allocaddr(flags=%x, paddr=%s)\n", flags, paddr);
+
+	a->q_paddr = paddr;
+
+	if (a->q_user == NULL)
+		a->q_user = "";
+	if (a->q_host == NULL)
+		a->q_host = "";
+
+	if (bitset(RF_COPYPARSE, flags))
+	{
+		a->q_host = newstr(a->q_host);
+		if (a->q_user != a->q_paddr)
+			a->q_user = newstr(a->q_user);
+	}
+
+	if (a->q_paddr == NULL)
+		a->q_paddr = a->q_user;
+}
+/*
+**  PRESCAN -- Prescan name and make it canonical
+**
+**	Scans a name and turns it into a set of tokens.  This process
+**	deletes blanks and comments (in parentheses).
+**
+**	This routine knows about quoted strings and angle brackets.
+**
+**	There are certain subtleties to this routine.  The one that
+**	comes to mind now is that backslashes on the ends of names
+**	are silently stripped off; this is intentional.  The problem
+**	is that some versions of sndmsg (like at LBL) set the kill
+**	character to something other than @ when reading addresses;
+**	so people type "csvax.eric\@berkeley" -- which screws up the
+**	berknet mailer.
+**
+**	Parameters:
+**		addr -- the name to chomp.
+**		delim -- the delimiter for the address, normally
+**			'\0' or ','; \0 is accepted in any case.
+**			If '\t' then we are reading the .cf file.
+**		pvpbuf -- place to put the saved text -- note that
+**			the pointers are static.
+**		pvpbsize -- size of pvpbuf.
+**		delimptr -- if non-NULL, set to the location of the
+**			terminating delimiter.
+**		toktab -- if set, a token table to use for parsing.
+**			If NULL, use the default table.
+**
+**	Returns:
+**		A pointer to a vector of tokens.
+**		NULL on error.
+*/
+
+/* states and character types */
+# define OPR		0	/* operator */
+# define ATM		1	/* atom */
+# define QST		2	/* in quoted string */
+# define SPC		3	/* chewing up spaces */
+# define ONE		4	/* pick up one character */
+# define ILL		5	/* illegal character */
+
+# define NSTATES	6	/* number of states */
+# define TYPE		017	/* mask to select state type */
+
+/* meta bits for table */
+# define M		020	/* meta character; don't pass through */
+# define B		040	/* cause a break */
+# define MB		M|B	/* meta-break */
+
+static short StateTab[NSTATES][NSTATES] =
+{
+   /*	oldst	chtype>	OPR	ATM	QST	SPC	ONE	ILL	*/
+	/*OPR*/	{	OPR|B,	ATM|B,	QST|B,	SPC|MB,	ONE|B,	ILL|MB	},
+	/*ATM*/	{	OPR|B,	ATM,	QST|B,	SPC|MB,	ONE|B,	ILL|MB	},
+	/*QST*/	{	QST,	QST,	OPR,	QST,	QST,	QST	},
+	/*SPC*/	{	OPR,	ATM,	QST,	SPC|M,	ONE,	ILL|MB	},
+	/*ONE*/	{	OPR,	OPR,	OPR,	OPR,	OPR,	ILL|MB	},
+	/*ILL*/	{	OPR|B,	ATM|B,	QST|B,	SPC|MB,	ONE|B,	ILL|M	},
+};
+
+/* token type table -- it gets modified with $o characters */
+static u_char	TokTypeTab[256] =
+{
+    /*	nul soh stx etx eot enq ack bel  bs  ht  nl  vt  np  cr  so  si   */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,SPC,SPC,SPC,SPC,SPC,ATM,ATM,
+    /*	dle dc1 dc2 dc3 dc4 nak syn etb  can em  sub esc fs  gs  rs  us   */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*  sp  !   "   #   $   %   &   '    (   )   *   +   ,   -   .   /    */
+	SPC,ATM,QST,ATM,ATM,ATM,ATM,ATM, ATM,SPC,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*	0   1   2   3   4   5   6   7    8   9   :   ;   <   =   >   ?    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*	@   A   B   C   D   E   F   G    H   I   J   K   L   M   N   O    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*  P   Q   R   S   T   U   V   W    X   Y   Z   [   \   ]   ^   _    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*	`   a   b   c   d   e   f   g    h   i   j   k   l   m   n   o    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*  p   q   r   s   t   u   v   w    x   y   z   {   |   }   ~   del  */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+
+    /*	nul soh stx etx eot enq ack bel  bs  ht  nl  vt  np  cr  so  si   */
+	OPR,OPR,ONE,OPR,OPR,OPR,OPR,OPR, OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,
+    /*	dle dc1 dc2 dc3 dc4 nak syn etb  can em  sub esc fs  gs  rs  us   */
+	OPR,OPR,OPR,ONE,ONE,ONE,OPR,OPR, OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,
+    /*  sp  !   "   #   $   %   &   '    (   )   *   +   ,   -   .   /    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*	0   1   2   3   4   5   6   7    8   9   :   ;   <   =   >   ?    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*	@   A   B   C   D   E   F   G    H   I   J   K   L   M   N   O    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*  P   Q   R   S   T   U   V   W    X   Y   Z   [   \   ]   ^   _    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*	`   a   b   c   d   e   f   g    h   i   j   k   l   m   n   o    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*  p   q   r   s   t   u   v   w    x   y   z   {   |   }   ~   del  */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+};
+
+/* token type table for MIME parsing */
+u_char	MimeTokenTab[256] =
+{
+    /*	nul soh stx etx eot enq ack bel  bs  ht  nl  vt  np  cr  so  si   */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,SPC,SPC,SPC,SPC,SPC,ILL,ILL,
+    /*	dle dc1 dc2 dc3 dc4 nak syn etb  can em  sub esc fs  gs  rs  us   */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*  sp  !   "   #   $   %   &   '    (   )   *   +   ,   -   .   /    */
+	SPC,ATM,QST,ATM,ATM,ATM,ATM,ATM, ATM,SPC,ATM,ATM,OPR,ATM,ATM,OPR,
+    /*	0   1   2   3   4   5   6   7    8   9   :   ;   <   =   >   ?    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,OPR,OPR,OPR,OPR,OPR,OPR,
+    /*	@   A   B   C   D   E   F   G    H   I   J   K   L   M   N   O    */
+	OPR,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*  P   Q   R   S   T   U   V   W    X   Y   Z   [   \   ]   ^   _    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,OPR,OPR,OPR,ATM,ATM,
+    /*	`   a   b   c   d   e   f   g    h   i   j   k   l   m   n   o    */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+    /*  p   q   r   s   t   u   v   w    x   y   z   {   |   }   ~   del  */
+	ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,
+
+    /*	nul soh stx etx eot enq ack bel  bs  ht  nl  vt  np  cr  so  si   */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*	dle dc1 dc2 dc3 dc4 nak syn etb  can em  sub esc fs  gs  rs  us   */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*  sp  !   "   #   $   %   &   '    (   )   *   +   ,   -   .   /    */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*	0   1   2   3   4   5   6   7    8   9   :   ;   <   =   >   ?    */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*	@   A   B   C   D   E   F   G    H   I   J   K   L   M   N   O    */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*  P   Q   R   S   T   U   V   W    X   Y   Z   [   \   ]   ^   _    */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*	`   a   b   c   d   e   f   g    h   i   j   k   l   m   n   o    */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+    /*  p   q   r   s   t   u   v   w    x   y   z   {   |   }   ~   del  */
+	ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL,
+};
+
+
+# define NOCHAR		-1	/* signal nothing in lookahead token */
+
+char **
+prescan(addr, delim, pvpbuf, pvpbsize, delimptr, toktab)
+	char *addr;
+	int delim;
+	char pvpbuf[];
+	int pvpbsize;
+	char **delimptr;
+	u_char *toktab;
+{
+	register char *p;
+	register char *q;
+	register int c;
+	char **avp;
+	bool bslashmode;
+	bool route_syntax;
+	int cmntcnt;
+	int anglecnt;
+	char *tok;
+	int state;
+	int newstate;
+	char *saveto = CurEnv->e_to;
+	static char *av[MAXATOM+1];
+	static char firsttime = TRUE;
+	extern int errno;
+
+	if (firsttime)
+	{
+		/* initialize the token type table */
+		char obuf[50];
+
+		firsttime = FALSE;
+		if (OperatorChars == NULL)
+		{
+			if (ConfigLevel < 7)
+				OperatorChars = macvalue('o', CurEnv);
+			if (OperatorChars == NULL)
+				OperatorChars = ".:@[]";
+		}
+		expand(OperatorChars, obuf, sizeof obuf - sizeof DELIMCHARS, CurEnv);
+		strcat(obuf, DELIMCHARS);
+		for (p = obuf; *p != '\0'; p++)
+		{
+			if (TokTypeTab[*p & 0xff] == ATM)
+				TokTypeTab[*p & 0xff] = OPR;
+		}
+	}
+	if (toktab == NULL)
+		toktab = TokTypeTab;
+
+	/* make sure error messages don't have garbage on them */
+	errno = 0;
+
+	q = pvpbuf;
+	bslashmode = FALSE;
+	route_syntax = FALSE;
+	cmntcnt = 0;
+	anglecnt = 0;
+	avp = av;
+	state = ATM;
+	c = NOCHAR;
+	p = addr;
+	CurEnv->e_to = p;
+	if (tTd(22, 11))
+	{
+		printf("prescan: ");
+		xputs(p);
+		(void) putchar('\n');
+	}
+
+	do
+	{
+		/* read a token */
+		tok = q;
+		for (;;)
+		{
+			/* store away any old lookahead character */
+			if (c != NOCHAR && !bslashmode)
+			{
+				/* see if there is room */
+				if (q >= &pvpbuf[pvpbsize - 5])
+				{
+					usrerr("553 Address too long");
+					if (strlen(addr) > (SIZE_T) MAXNAME)
+						addr[MAXNAME] = '\0';
+	returnnull:
+					if (delimptr != NULL)
+						*delimptr = p;
+					CurEnv->e_to = saveto;
+					return (NULL);
+				}
+
+				/* squirrel it away */
+				*q++ = c;
+			}
+
+			/* read a new input character */
+			c = *p++;
+			if (c == '\0')
+			{
+				/* diagnose and patch up bad syntax */
+				if (state == QST)
+				{
+					usrerr("653 Unbalanced '\"'");
+					c = '"';
+				}
+				else if (cmntcnt > 0)
+				{
+					usrerr("653 Unbalanced '('");
+					c = ')';
+				}
+				else if (anglecnt > 0)
+				{
+					c = '>';
+					usrerr("653 Unbalanced '<'");
+				}
+				else
+					break;
+
+				p--;
+			}
+			else if (c == delim && cmntcnt <= 0 && state != QST)
+			{
+				if (anglecnt <= 0)
+					break;
+
+				/* special case for better error management */
+				if (delim == ',' && !route_syntax)
+				{
+					usrerr("653 Unbalanced '<'");
+					c = '>';
+					p--;
+				}
+			}
+
+			if (tTd(22, 101))
+				printf("c=%c, s=%d; ", c, state);
+
+			/* chew up special characters */
+			*q = '\0';
+			if (bslashmode)
+			{
+				bslashmode = FALSE;
+
+				/* kludge \! for naive users */
+				if (cmntcnt > 0)
+				{
+					c = NOCHAR;
+					continue;
+				}
+				else if (c != '!' || state == QST)
+				{
+					*q++ = '\\';
+					continue;
+				}
+			}
+
+			if (c == '\\')
+			{
+				bslashmode = TRUE;
+			}
+			else if (state == QST)
+			{
+				/* do nothing, just avoid next clauses */
+			}
+			else if (c == '(')
+			{
+				cmntcnt++;
+				c = NOCHAR;
+			}
+			else if (c == ')')
+			{
+				if (cmntcnt <= 0)
+				{
+					usrerr("653 Unbalanced ')'");
+					c = NOCHAR;
+				}
+				else
+					cmntcnt--;
+			}
+			else if (cmntcnt > 0)
+				c = NOCHAR;
+			else if (c == '<')
+			{
+				char *q = p;
+
+				anglecnt++;
+				while (isascii(*q) && isspace(*q))
+					q++;
+				if (*q == '@')
+					route_syntax = TRUE;
+			}
+			else if (c == '>')
+			{
+				if (anglecnt <= 0)
+				{
+					usrerr("653 Unbalanced '>'");
+					c = NOCHAR;
+				}
+				else
+					anglecnt--;
+				route_syntax = FALSE;
+			}
+			else if (delim == ' ' && isascii(c) && isspace(c))
+				c = ' ';
+
+			if (c == NOCHAR)
+				continue;
+
+			/* see if this is end of input */
+			if (c == delim && anglecnt <= 0 && state != QST)
+				break;
+
+			newstate = StateTab[state][toktab[c & 0xff]];
+			if (tTd(22, 101))
+				printf("ns=%02o\n", newstate);
+			state = newstate & TYPE;
+			if (state == ILL)
+			{
+				if (isascii(c) && isprint(c))
+					usrerr("653 Illegal character %c", c);
+				else
+					usrerr("653 Illegal character 0x%02x", c);
+			}
+			if (bitset(M, newstate))
+				c = NOCHAR;
+			if (bitset(B, newstate))
+				break;
+		}
+
+		/* new token */
+		if (tok != q)
+		{
+			*q++ = '\0';
+			if (tTd(22, 36))
+			{
+				printf("tok=");
+				xputs(tok);
+				(void) putchar('\n');
+			}
+			if (avp >= &av[MAXATOM])
+			{
+				syserr("553 prescan: too many tokens");
+				goto returnnull;
+			}
+			if (q - tok > MAXNAME)
+			{
+				syserr("553 prescan: token too long");
+				goto returnnull;
+			}
+			*avp++ = tok;
+		}
+	} while (c != '\0' && (c != delim || anglecnt > 0));
+	*avp = NULL;
+	p--;
+	if (delimptr != NULL)
+		*delimptr = p;
+	if (tTd(22, 12))
+	{
+		printf("prescan==>");
+		printav(av);
+	}
+	CurEnv->e_to = saveto;
+	if (av[0] == NULL)
+	{
+		if (tTd(22, 1))
+			printf("prescan: null leading token\n");
+		return (NULL);
+	}
+	return (av);
+}
+/*
+**  REWRITE -- apply rewrite rules to token vector.
+**
+**	This routine is an ordered production system.  Each rewrite
+**	rule has a LHS (called the pattern) and a RHS (called the
+**	rewrite); 'rwr' points the the current rewrite rule.
+**
+**	For each rewrite rule, 'avp' points the address vector we
+**	are trying to match against, and 'pvp' points to the pattern.
+**	If pvp points to a special match value (MATCHZANY, MATCHANY,
+**	MATCHONE, MATCHCLASS, MATCHNCLASS) then the address in avp
+**	matched is saved away in the match vector (pointed to by 'mvp').
+**
+**	When a match between avp & pvp does not match, we try to
+**	back out.  If we back up over MATCHONE, MATCHCLASS, or MATCHNCLASS
+**	we must also back out the match in mvp.  If we reach a
+**	MATCHANY or MATCHZANY we just extend the match and start
+**	over again.
+**
+**	When we finally match, we rewrite the address vector
+**	and try over again.
+**
+**	Parameters:
+**		pvp -- pointer to token vector.
+**		ruleset -- the ruleset to use for rewriting.
+**		reclevel -- recursion level (to catch loops).
+**		e -- the current envelope.
+**
+**	Returns:
+**		A status code.  If EX_TEMPFAIL, higher level code should
+**			attempt recovery.
+**
+**	Side Effects:
+**		pvp is modified.
+*/
+
+struct match
+{
+	char	**first;	/* first token matched */
+	char	**last;		/* last token matched */
+	char	**pattern;	/* pointer to pattern */
+};
+
+# define MAXMATCH	9	/* max params per rewrite */
+
+
+int
+rewrite(pvp, ruleset, reclevel, e)
+	char **pvp;
+	int ruleset;
+	int reclevel;
+	register ENVELOPE *e;
+{
+	register char *ap;		/* address pointer */
+	register char *rp;		/* rewrite pointer */
+	register char **avp;		/* address vector pointer */
+	register char **rvp;		/* rewrite vector pointer */
+	register struct match *mlp;	/* cur ptr into mlist */
+	register struct rewrite *rwr;	/* pointer to current rewrite rule */
+	int ruleno;			/* current rule number */
+	int rstat = EX_OK;		/* return status */
+	int loopcount;
+	struct match mlist[MAXMATCH];	/* stores match on LHS */
+	char *npvp[MAXATOM+1];		/* temporary space for rebuild */
+	extern int callsubr __P((char**, int, ENVELOPE *));
+	extern int sm_strcasecmp __P((char *, char *));
+
+	if (OpMode == MD_TEST || tTd(21, 1))
+	{
+		printf("rewrite: ruleset %3d   input:", ruleset);
+		printav(pvp);
+	}
+	if (ruleset < 0 || ruleset >= MAXRWSETS)
+	{
+		syserr("554 rewrite: illegal ruleset number %d", ruleset);
+		return EX_CONFIG;
+	}
+	if (reclevel++ > MaxRuleRecursion)
+	{
+		syserr("rewrite: excessive recursion (max %d), ruleset %d",
+			MaxRuleRecursion, ruleset);
+		return EX_CONFIG;
+	}
+	if (pvp == NULL)
+		return EX_USAGE;
+
+	/*
+	**  Run through the list of rewrite rules, applying
+	**	any that match.
+	*/
+
+	ruleno = 1;
+	loopcount = 0;
+	for (rwr = RewriteRules[ruleset]; rwr != NULL; )
+	{
+		int stat;
+
+		/* if already canonical, quit now */
+		if (pvp[0] != NULL && (pvp[0][0] & 0377) == CANONNET)
+			break;
+
+		if (tTd(21, 12))
+		{
+			printf("-----trying rule:");
+			printav(rwr->r_lhs);
+		}
+
+		/* try to match on this rule */
+		mlp = mlist;
+		rvp = rwr->r_lhs;
+		avp = pvp;
+		if (++loopcount > 100)
+		{
+			syserr("554 Infinite loop in ruleset %d, rule %d",
+				ruleset, ruleno);
+			if (tTd(21, 1))
+			{
+				printf("workspace: ");
+				printav(pvp);
+			}
+			break;
+		}
+
+		while ((ap = *avp) != NULL || *rvp != NULL)
+		{
+			rp = *rvp;
+			if (tTd(21, 35))
+			{
+				printf("ADVANCE rp=");
+				xputs(rp);
+				printf(", ap=");
+				xputs(ap);
+				printf("\n");
+			}
+			if (rp == NULL)
+			{
+				/* end-of-pattern before end-of-address */
+				goto backup;
+			}
+			if (ap == NULL && (*rp & 0377) != MATCHZANY &&
+			    (*rp & 0377) != MATCHZERO)
+			{
+				/* end-of-input with patterns left */
+				goto backup;
+			}
+
+			switch (*rp & 0377)
+			{
+				char buf[MAXLINE];
+
+			  case MATCHCLASS:
+				/* match any phrase in a class */
+				mlp->pattern = rvp;
+				mlp->first = avp;
+	extendclass:
+				ap = *avp;
+				if (ap == NULL)
+					goto backup;
+				mlp->last = avp++;
+				cataddr(mlp->first, mlp->last, buf, sizeof buf, '\0');
+				if (!wordinclass(buf, rp[1]))
+				{
+					if (tTd(21, 36))
+					{
+						printf("EXTEND  rp=");
+						xputs(rp);
+						printf(", ap=");
+						xputs(ap);
+						printf("\n");
+					}
+					goto extendclass;
+				}
+				if (tTd(21, 36))
+					printf("CLMATCH\n");
+				mlp++;
+				break;
+
+			  case MATCHNCLASS:
+				/* match any token not in a class */
+				if (wordinclass(ap, rp[1]))
+					goto backup;
+
+				/* fall through */
+
+			  case MATCHONE:
+			  case MATCHANY:
+				/* match exactly one token */
+				mlp->pattern = rvp;
+				mlp->first = avp;
+				mlp->last = avp++;
+				mlp++;
+				break;
+
+			  case MATCHZANY:
+				/* match zero or more tokens */
+				mlp->pattern = rvp;
+				mlp->first = avp;
+				mlp->last = avp - 1;
+				mlp++;
+				break;
+
+			  case MATCHZERO:
+				/* match zero tokens */
+				break;
+
+			  case MACRODEXPAND:
+				/*
+				**  Match against run-time macro.
+				**  This algorithm is broken for the
+				**  general case (no recursive macros,
+				**  improper tokenization) but should
+				**  work for the usual cases.
+				*/
+
+				ap = macvalue(rp[1], e);
+				mlp->first = avp;
+				if (tTd(21, 2))
+					printf("rewrite: LHS $&%s => \"%s\"\n",
+						macname(rp[1]),
+						ap == NULL ? "(NULL)" : ap);
+
+				if (ap == NULL)
+					break;
+				while (*ap != '\0')
+				{
+					if (*avp == NULL ||
+					    strncasecmp(ap, *avp, strlen(*avp)) != 0)
+					{
+						/* no match */
+						avp = mlp->first;
+						goto backup;
+					}
+					ap += strlen(*avp++);
+				}
+
+				/* match */
+				break;
+
+			  default:
+				/* must have exact match */
+				if (sm_strcasecmp(rp, ap))
+					goto backup;
+				avp++;
+				break;
+			}
+
+			/* successful match on this token */
+			rvp++;
+			continue;
+
+	  backup:
+			/* match failed -- back up */
+			while (--mlp >= mlist)
+			{
+				rvp = mlp->pattern;
+				rp = *rvp;
+				avp = mlp->last + 1;
+				ap = *avp;
+
+				if (tTd(21, 36))
+				{
+					printf("BACKUP  rp=");
+					xputs(rp);
+					printf(", ap=");
+					xputs(ap);
+					printf("\n");
+				}
+
+				if (ap == NULL)
+				{
+					/* run off the end -- back up again */
+					continue;
+				}
+				if ((*rp & 0377) == MATCHANY ||
+				    (*rp & 0377) == MATCHZANY)
+				{
+					/* extend binding and continue */
+					mlp->last = avp++;
+					rvp++;
+					mlp++;
+					break;
+				}
+				if ((*rp & 0377) == MATCHCLASS)
+				{
+					/* extend binding and try again */
+					mlp->last = avp;
+					goto extendclass;
+				}
+			}
+
+			if (mlp < mlist)
+			{
+				/* total failure to match */
+				break;
+			}
+		}
+
+		/*
+		**  See if we successfully matched
+		*/
+
+		if (mlp < mlist || *rvp != NULL)
+		{
+			if (tTd(21, 10))
+				printf("----- rule fails\n");
+			rwr = rwr->r_next;
+			ruleno++;
+			loopcount = 0;
+			continue;
+		}
+
+		rvp = rwr->r_rhs;
+		if (tTd(21, 12))
+		{
+			printf("-----rule matches:");
+			printav(rvp);
+		}
+
+		rp = *rvp;
+		if ((*rp & 0377) == CANONUSER)
+		{
+			rvp++;
+			rwr = rwr->r_next;
+			ruleno++;
+			loopcount = 0;
+		}
+		else if ((*rp & 0377) == CANONHOST)
+		{
+			rvp++;
+			rwr = NULL;
+		}
+
+		/* substitute */
+		for (avp = npvp; *rvp != NULL; rvp++)
+		{
+			register struct match *m;
+			register char **pp;
+
+			rp = *rvp;
+			if ((*rp & 0377) == MATCHREPL)
+			{
+				/* substitute from LHS */
+				m = &mlist[rp[1] - '1'];
+				if (m < mlist || m >= mlp)
+				{
+					syserr("554 rewrite: ruleset %d: replacement $%c out of bounds",
+						ruleset, rp[1]);
+					return EX_CONFIG;
+				}
+				if (tTd(21, 15))
+				{
+					printf("$%c:", rp[1]);
+					pp = m->first;
+					while (pp <= m->last)
+					{
+						printf(" %lx=\"", (u_long) *pp);
+						(void) fflush(stdout);
+						printf("%s\"", *pp++);
+					}
+					printf("\n");
+				}
+				pp = m->first;
+				while (pp <= m->last)
+				{
+					if (avp >= &npvp[MAXATOM])
+					{
+						syserr("554 rewrite: expansion too long");
+						return EX_DATAERR;
+					}
+					*avp++ = *pp++;
+				}
+			}
+			else
+			{
+				/* vanilla replacement */
+				if (avp >= &npvp[MAXATOM])
+				{
+	toolong:
+					syserr("554 rewrite: expansion too long");
+					return EX_DATAERR;
+				}
+				if ((*rp & 0377) != MACRODEXPAND)
+					*avp++ = rp;
+				else
+				{
+					*avp = macvalue(rp[1], e);
+					if (tTd(21, 2))
+						printf("rewrite: RHS $&%s => \"%s\"\n",
+							macname(rp[1]),
+							*avp == NULL ? "(NULL)" : *avp);
+					if (*avp != NULL)
+						avp++;
+				}
+			}
+		}
+		*avp++ = NULL;
+
+		/*
+		**  Check for any hostname/keyword lookups.
+		*/
+
+		for (rvp = npvp; *rvp != NULL; rvp++)
+		{
+			char **hbrvp;
+			char **xpvp;
+			int trsize;
+			char *replac;
+			int endtoken;
+			STAB *map;
+			char *mapname;
+			char **key_rvp;
+			char **arg_rvp;
+			char **default_rvp;
+			char buf[MAXNAME + 1];
+			char *pvpb1[MAXATOM + 1];
+			char *argvect[10];
+			char pvpbuf[PSBUFSIZE];
+			char *nullpvp[1];
+			extern char *map_lookup __P((STAB *, char *, char **, int *, ENVELOPE *));
+
+			if ((**rvp & 0377) != HOSTBEGIN &&
+			    (**rvp & 0377) != LOOKUPBEGIN)
+				continue;
+
+			/*
+			**  Got a hostname/keyword lookup.
+			**
+			**	This could be optimized fairly easily.
+			*/
+
+			hbrvp = rvp;
+			if ((**rvp & 0377) == HOSTBEGIN)
+			{
+				endtoken = HOSTEND;
+				mapname = "host";
+			}
+			else
+			{
+				endtoken = LOOKUPEND;
+				mapname = *++rvp;
+			}
+			map = stab(mapname, ST_MAP, ST_FIND);
+			if (map == NULL)
+				syserr("554 rewrite: map %s not found", mapname);
+
+			/* extract the match part */
+			key_rvp = ++rvp;
+			default_rvp = NULL;
+			arg_rvp = argvect;
+			xpvp = NULL;
+			replac = pvpbuf;
+			while (*rvp != NULL && (**rvp & 0377) != endtoken)
+			{
+				int nodetype = **rvp & 0377;
+
+				if (nodetype != CANONHOST && nodetype != CANONUSER)
+				{
+					rvp++;
+					continue;
+				}
+
+				*rvp++ = NULL;
+
+				if (xpvp != NULL)
+				{
+					cataddr(xpvp, NULL, replac,
+						&pvpbuf[sizeof pvpbuf] - replac,
+						'\0');
+					*++arg_rvp = replac;
+					replac += strlen(replac) + 1;
+					xpvp = NULL;
+				}
+				switch (nodetype)
+				{
+				  case CANONHOST:
+					xpvp = rvp;
+					break;
+
+				  case CANONUSER:
+					default_rvp = rvp;
+					break;
+				}
+			}
+			if (*rvp != NULL)
+				*rvp++ = NULL;
+			if (xpvp != NULL)
+			{
+				cataddr(xpvp, NULL, replac,
+					&pvpbuf[sizeof pvpbuf] - replac,
+					'\0');
+				*++arg_rvp = replac;
+			}
+			*++arg_rvp = NULL;
+
+			/* save the remainder of the input string */
+			trsize = (int) (avp - rvp + 1) * sizeof *rvp;
+			bcopy((char *) rvp, (char *) pvpb1, trsize);
+
+			/* look it up */
+			cataddr(key_rvp, NULL, buf, sizeof buf, '\0');
+			argvect[0] = buf;
+			replac = map_lookup(map, buf, argvect, &rstat, e);
+
+			/* if no replacement, use default */
+			if (replac == NULL && default_rvp != NULL)
+			{
+				/* create the default */
+				cataddr(default_rvp, NULL, buf, sizeof buf, '\0');
+				replac = buf;
+			}
+
+			if (replac == NULL)
+			{
+				xpvp = key_rvp;
+			}
+			else if (*replac == '\0')
+			{
+				/* null replacement */
+				nullpvp[0] = NULL;
+				xpvp = nullpvp;
+			}
+			else
+			{
+				/* scan the new replacement */
+				xpvp = prescan(replac, '\0', pvpbuf,
+					       sizeof pvpbuf, NULL, NULL);
+				if (xpvp == NULL)
+				{
+					/* prescan already printed error */
+					return EX_DATAERR;
+				}
+			}
+
+			/* append it to the token list */
+			for (avp = hbrvp; *xpvp != NULL; xpvp++)
+			{
+				*avp++ = newstr(*xpvp);
+				if (avp >= &npvp[MAXATOM])
+					goto toolong;
+			}
+
+			/* restore the old trailing information */
+			for (xpvp = pvpb1; (*avp++ = *xpvp++) != NULL; )
+				if (avp >= &npvp[MAXATOM])
+					goto toolong;
+
+			break;
+		}
+
+		/*
+		**  Check for subroutine calls.
+		*/
+
+		stat = callsubr(npvp, reclevel, e);
+		if (rstat == EX_OK || stat == EX_TEMPFAIL)
+			rstat = stat;
+
+		/* copy vector back into original space. */
+		for (avp = npvp; *avp++ != NULL;)
+			continue;
+		bcopy((char *) npvp, (char *) pvp,
+		      (int) (avp - npvp) * sizeof *avp);
+		
+		if (tTd(21, 4))
+		{
+			printf("rewritten as:");
+			printav(pvp);
+		}
+	}
+
+	if (OpMode == MD_TEST || tTd(21, 1))
+	{
+		printf("rewrite: ruleset %3d returns:", ruleset);
+		printav(pvp);
+	}
+
+	return rstat;
+}
+/*
+**  CALLSUBR -- call subroutines in rewrite vector
+**
+**	Parameters:
+**		pvp -- pointer to token vector.
+**		reclevel -- the current recursion level.
+**		e -- the current envelope.
+**
+**	Returns:
+**		The status from the subroutine call.
+**
+**	Side Effects:
+**		pvp is modified.
+*/
+
+int
+callsubr(pvp, reclevel, e)
+	char **pvp;
+	int reclevel;
+	ENVELOPE *e;
+{
+    	char **avp;
+    	char **rvp;
+	register int i;
+	int subr;
+	int stat;
+	int rstat = EX_OK;
+	char *tpvp[MAXATOM + 1];
+
+	for (avp = pvp; *avp != NULL; avp++)
+	{
+		if ((**avp & 0377) == CALLSUBR && avp[1] != NULL)
+		{
+			subr = strtorwset(avp[1], NULL, ST_FIND);
+			if (subr < 0)
+			{
+				syserr("Unknown ruleset %s", avp[1]);
+				return EX_CONFIG;
+			}
+
+			if (tTd(21, 3))
+				printf("-----callsubr %s (%d)\n", avp[1], subr);
+				
+			/*
+			**  Take care of possible inner calls first.
+			**  use a full size temporary buffer to avoid
+			**  overflows in rewrite, but strip off the
+			**  subroutine call.
+			*/
+
+			for (i = 2; avp[i] != NULL; i++)
+				tpvp[i - 2] = avp[i];
+			tpvp[i - 2] = NULL;
+
+			stat = callsubr(tpvp, reclevel, e);
+			if (rstat == EX_OK || stat == EX_TEMPFAIL)
+				rstat = stat;
+
+			/*
+			**  Now we need to call the ruleset specified for
+			**  the subroutine. we can do this with the
+			**  temporary buffer that we set up earlier,
+			**  since it has all the data we want to rewrite.
+			*/
+
+			stat = rewrite(tpvp, subr, reclevel, e);
+			if (rstat == EX_OK || stat == EX_TEMPFAIL)
+				rstat = stat;
+
+			/*
+			**  Find length of tpvp and current offset into
+			**  pvp, if the total is greater than MAXATOM,
+			**  then it would overflow the buffer if we copied
+			**  it back in to pvp, in which case we throw a
+			**  fit.
+			*/
+
+			for (rvp = tpvp; *rvp != NULL; rvp++)
+				continue;
+			if (((rvp - tpvp) + (avp - pvp)) > MAXATOM)
+			{
+			    	syserr("554 callsubr: expansion too long");
+				return EX_DATAERR;
+			}
+
+			/*
+			**  Now we can copy the rewritten code over
+			**  the initial subroutine call in the buffer.
+			*/
+
+			for (i = 0; tpvp[i] != NULL; i++)
+				avp[i] = tpvp[i];
+			avp[i] = NULL;
+
+			/*
+			**  If we got this far, we've processed the left
+			**  most subroutine, and recursively called ourselves
+			**  to handle any other subroutines.  We're done.
+			*/
+
+			break;
+		}
+	}
+	return rstat;
+}
+/*
+**  MAP_LOOKUP -- do lookup in map
+**
+**	Parameters:
+**		map -- the map to use for the lookup.
+**		key -- the key to look up.
+**		argvect -- arguments to pass to the map lookup.
+**		pstat -- a pointer to an integer in which to store the
+**			status from the lookup.
+**		e -- the current envelope.
+**
+**	Returns:
+**		The result of the lookup.
+**		NULL -- if there was no data for the given key.
+*/
+
+char *
+map_lookup(map, key, argvect, pstat, e)
+	STAB *map;
+	char key[];
+	char **argvect;
+	int *pstat;
+	ENVELOPE *e;
+{
+	auto int stat = EX_OK;
+	char *replac;
+
+	if (e->e_sendmode == SM_DEFER)
+	{
+		/* don't do any map lookups */
+		if (tTd(60, 1))
+			printf("map_lookup(%s, %s) => DEFERRED\n",
+				map->s_name, key);
+		*pstat = EX_TEMPFAIL;
+		return NULL;
+	}
+	if (map == NULL || !bitset(MF_OPEN, map->s_map.map_mflags))
+		return NULL;
+
+	if (!bitset(MF_KEEPQUOTES, map->s_map.map_mflags))
+		stripquotes(key);
+
+	/* XXX should try to auto-open the map here */
+
+	if (tTd(60, 1))
+		printf("map_lookup(%s, %s) => ",
+			map->s_name, key);
+	replac = (*map->s_map.map_class->map_lookup)(&map->s_map,
+			key, argvect, &stat);
+	if (tTd(60, 1))
+		printf("%s (%d)\n",
+			replac != NULL ? replac : "NOT FOUND",
+			stat);
+
+	/* should recover if stat == EX_TEMPFAIL */
+	if (stat == EX_TEMPFAIL && !bitset(MF_NODEFER, map->s_map.map_mflags))
+	{
+		*pstat = EX_TEMPFAIL;
+		if (tTd(60, 1))
+			printf("map_lookup(%s, %s) tempfail: errno=%d\n",
+				map->s_name, key, errno);
+		if (e->e_message == NULL)
+		{
+			char mbuf[320];
+
+			snprintf(mbuf, sizeof mbuf,
+				"%.80s map: lookup (%s): deferred",
+				map->s_name,
+				shortenstring(key, 203));
+			e->e_message = newstr(mbuf);
+		}
+	}
+	return replac;
+}
+/*
+**  BUILDADDR -- build address from token vector.
+**
+**	Parameters:
+**		tv -- token vector.
+**		a -- pointer to address descriptor to fill.
+**			If NULL, one will be allocated.
+**		flags -- info regarding whether this is a sender or
+**			a recipient.
+**		e -- the current envelope.
+**
+**	Returns:
+**		NULL if there was an error.
+**		'a' otherwise.
+**
+**	Side Effects:
+**		fills in 'a'
+*/
+
+struct errcodes
+{
+	char	*ec_name;		/* name of error code */
+	int	ec_code;		/* numeric code */
+} ErrorCodes[] =
+{
+	{ "usage",		EX_USAGE	},
+	{ "nouser",		EX_NOUSER	},
+	{ "nohost",		EX_NOHOST	},
+	{ "unavailable",	EX_UNAVAILABLE	},
+	{ "software",		EX_SOFTWARE	},
+	{ "tempfail",		EX_TEMPFAIL	},
+	{ "protocol",		EX_PROTOCOL	},
+#ifdef EX_CONFIG
+	{ "config",		EX_CONFIG	},
+#endif
+	{ NULL,			EX_UNAVAILABLE	}
+};
+
+ADDRESS *
+buildaddr(tv, a, flags, e)
+	register char **tv;
+	register ADDRESS *a;
+	int flags;
+	register ENVELOPE *e;
+{
+	struct mailer **mp;
+	register struct mailer *m;
+	register char *p;
+	char *mname;
+	char **hostp;
+	char hbuf[MAXNAME + 1];
+	static MAILER errormailer;
+	static char *errorargv[] = { "ERROR", NULL };
+	static char ubuf[MAXNAME + 1];
+
+	if (tTd(24, 5))
+	{
+		printf("buildaddr, flags=%x, tv=", flags);
+		printav(tv);
+	}
+
+	if (a == NULL)
+		a = (ADDRESS *) xalloc(sizeof *a);
+	bzero((char *) a, sizeof *a);
+
+	/* set up default error return flags */
+	a->q_flags |= DefaultNotify;
+
+	/* figure out what net/mailer to use */
+	if (*tv == NULL || (**tv & 0377) != CANONNET)
+	{
+		syserr("554 buildaddr: no mailer in parsed address");
+badaddr:
+		a->q_flags |= QBADADDR;
+		a->q_mailer = &errormailer;
+		if (errormailer.m_name == NULL)
+		{
+			/* initialize the bogus mailer */
+			errormailer.m_name = "*error*";
+			errormailer.m_mailer = "ERROR";
+			errormailer.m_argv = errorargv;
+		}
+		return a;
+	}
+	mname = *++tv;
+
+	/* extract host and user portions */
+	if (*++tv != NULL && (**tv & 0377) == CANONHOST)
+		hostp = ++tv;
+	else
+		hostp = NULL;
+	while (*tv != NULL && (**tv & 0377) != CANONUSER)
+		tv++;
+	if (*tv == NULL)
+	{
+		syserr("554 buildaddr: no user");
+		goto badaddr;
+	}
+	if (tv == hostp)
+		hostp = NULL;
+	else if (hostp != NULL)
+		cataddr(hostp, tv - 1, hbuf, sizeof hbuf, '\0');
+	cataddr(++tv, NULL, ubuf, sizeof ubuf, ' ');
+
+	/* save away the host name */
+	if (strcasecmp(mname, "error") == 0)
+	{
+		if (hostp != NULL)
+		{
+			register struct errcodes *ep;
+
+			if (strchr(hbuf, '.') != NULL)
+			{
+				extern int dsntoexitstat __P((char *));
+
+				a->q_status = newstr(hbuf);
+				setstat(dsntoexitstat(hbuf));
+			}
+			else if (isascii(hbuf[0]) && isdigit(hbuf[0]))
+			{
+				setstat(atoi(hbuf));
+			}
+			else
+			{
+				for (ep = ErrorCodes; ep->ec_name != NULL; ep++)
+					if (strcasecmp(ep->ec_name, hbuf) == 0)
+						break;
+				setstat(ep->ec_code);
+			}
+		}
+		else
+			setstat(EX_UNAVAILABLE);
+		stripquotes(ubuf);
+		if (isascii(ubuf[0]) && isdigit(ubuf[0]) &&
+		    isascii(ubuf[1]) && isdigit(ubuf[1]) &&
+		    isascii(ubuf[2]) && isdigit(ubuf[2]) &&
+		    ubuf[3] == ' ')
+		{
+			char fmt[10];
+
+			strncpy(fmt, ubuf, 3);
+			strcpy(&fmt[3], " %s");
+			usrerr(fmt, ubuf + 4);
+
+			/*
+			**  If this is a 4xx code and we aren't running
+			**  SMTP on our input, bounce this message;
+			**  otherwise it disappears without a trace.
+			*/
+
+			if (fmt[0] == '4' && OpMode != MD_SMTP &&
+			    OpMode != MD_DAEMON)
+			{
+				e->e_flags |= EF_FATALERRS;
+			}
+		}
+		else
+		{
+			usrerr("553 %s", ubuf);
+		}
+		goto badaddr;
+	}
+
+	for (mp = Mailer; (m = *mp++) != NULL; )
+	{
+		if (strcasecmp(m->m_name, mname) == 0)
+			break;
+	}
+	if (m == NULL)
+	{
+		syserr("554 buildaddr: unknown mailer %s", mname);
+		goto badaddr;
+	}
+	a->q_mailer = m;
+
+	/* figure out what host (if any) */
+	if (hostp == NULL)
+	{
+		if (!bitnset(M_LOCALMAILER, m->m_flags))
+		{
+			syserr("554 buildaddr: no host");
+			goto badaddr;
+		}
+		a->q_host = NULL;
+	}
+	else
+		a->q_host = newstr(hbuf);
+
+	/* figure out the user */
+	p = ubuf;
+	if (bitnset(M_CHECKUDB, m->m_flags) && *p == '@')
+	{
+		p++;
+		tv++;
+		a->q_flags |= QNOTREMOTE;
+	}
+
+	/* do special mapping for local mailer */
+	if (*p == '"')
+		p++;
+	if (*p == '|' && bitnset(M_CHECKPROG, m->m_flags))
+		a->q_mailer = m = ProgMailer;
+	else if (*p == '/' && bitnset(M_CHECKFILE, m->m_flags))
+		a->q_mailer = m = FileMailer;
+	else if (*p == ':' && bitnset(M_CHECKINCLUDE, m->m_flags))
+	{
+		/* may be :include: */
+		stripquotes(ubuf);
+		if (strncasecmp(ubuf, ":include:", 9) == 0)
+		{
+			/* if :include:, don't need further rewriting */
+			a->q_mailer = m = InclMailer;
+			a->q_user = newstr(&ubuf[9]);
+			return a;
+		}
+	}
+
+	/* rewrite according recipient mailer rewriting rules */
+	define('h', a->q_host, e);
+	if (!bitset(RF_SENDERADDR|RF_HEADERADDR, flags))
+	{
+		/* sender addresses done later */
+		(void) rewrite(tv, 2, 0, e);
+		if (m->m_re_rwset > 0)
+		       (void) rewrite(tv, m->m_re_rwset, 0, e);
+	}
+	(void) rewrite(tv, 4, 0, e);
+
+	/* save the result for the command line/RCPT argument */
+	cataddr(tv, NULL, ubuf, sizeof ubuf, '\0');
+	a->q_user = ubuf;
+
+	/*
+	**  Do mapping to lower case as requested by mailer
+	*/
+
+	if (a->q_host != NULL && !bitnset(M_HST_UPPER, m->m_flags))
+		makelower(a->q_host);
+	if (!bitnset(M_USR_UPPER, m->m_flags))
+		makelower(a->q_user);
+
+	if (tTd(24, 6))
+	{
+		printf("buildaddr => ");
+		printaddr(a, FALSE);
+	}
+	return a;
+}
+/*
+**  CATADDR -- concatenate pieces of addresses (putting in <LWSP> subs)
+**
+**	Parameters:
+**		pvp -- parameter vector to rebuild.
+**		evp -- last parameter to include.  Can be NULL to
+**			use entire pvp.
+**		buf -- buffer to build the string into.
+**		sz -- size of buf.
+**		spacesub -- the space separator character; if null,
+**			use SpaceSub.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Destroys buf.
+*/
+
+void
+cataddr(pvp, evp, buf, sz, spacesub)
+	char **pvp;
+	char **evp;
+	char *buf;
+	register int sz;
+	int spacesub;
+{
+	bool oatomtok = FALSE;
+	bool natomtok = FALSE;
+	register int i;
+	register char *p;
+
+	if (spacesub == '\0')
+		spacesub = SpaceSub;
+
+	if (pvp == NULL)
+	{
+		(void) strcpy(buf, "");
+		return;
+	}
+	p = buf;
+	sz -= 2;
+	while (*pvp != NULL && (i = strlen(*pvp)) < sz)
+	{
+		natomtok = (TokTypeTab[**pvp & 0xff] == ATM);
+		if (oatomtok && natomtok)
+			*p++ = spacesub;
+		(void) strcpy(p, *pvp);
+		oatomtok = natomtok;
+		p += i;
+		sz -= i + 1;
+		if (pvp++ == evp)
+			break;
+	}
+	*p = '\0';
+}
+/*
+**  SAMEADDR -- Determine if two addresses are the same
+**
+**	This is not just a straight comparison -- if the mailer doesn't
+**	care about the host we just ignore it, etc.
+**
+**	Parameters:
+**		a, b -- pointers to the internal forms to compare.
+**
+**	Returns:
+**		TRUE -- they represent the same mailbox.
+**		FALSE -- they don't.
+**
+**	Side Effects:
+**		none.
+*/
+
+bool
+sameaddr(a, b)
+	register ADDRESS *a;
+	register ADDRESS *b;
+{
+	register ADDRESS *ca, *cb;
+
+	/* if they don't have the same mailer, forget it */
+	if (a->q_mailer != b->q_mailer)
+		return (FALSE);
+
+	/* if the user isn't the same, we can drop out */
+	if (strcmp(a->q_user, b->q_user) != 0)
+		return (FALSE);
+
+	/* if we have good uids for both but they differ, these are different */
+	if (a->q_mailer == ProgMailer)
+	{
+		ca = getctladdr(a);
+		cb = getctladdr(b);
+		if (ca != NULL && cb != NULL &&
+		    bitset(QGOODUID, ca->q_flags & cb->q_flags) &&
+		    ca->q_uid != cb->q_uid)
+			return (FALSE);
+	}
+
+	/* otherwise compare hosts (but be careful for NULL ptrs) */
+	if (a->q_host == b->q_host)
+	{
+		/* probably both null pointers */
+		return (TRUE);
+	}
+	if (a->q_host == NULL || b->q_host == NULL)
+	{
+		/* only one is a null pointer */
+		return (FALSE);
+	}
+	if (strcmp(a->q_host, b->q_host) != 0)
+		return (FALSE);
+
+	return (TRUE);
+}
+/*
+**  PRINTADDR -- print address (for debugging)
+**
+**	Parameters:
+**		a -- the address to print
+**		follow -- follow the q_next chain.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+struct qflags
+{
+	char	*qf_name;
+	u_long	qf_bit;
+};
+
+struct qflags	AddressFlags[] =
+{
+	{ "QDONTSEND",		QDONTSEND	},
+	{ "QBADADDR",		QBADADDR	},
+	{ "QGOODUID",		QGOODUID	},
+	{ "QPRIMARY",		QPRIMARY	},
+	{ "QQUEUEUP",		QQUEUEUP	},
+	{ "QSENT",		QSENT		},
+	{ "QNOTREMOTE",		QNOTREMOTE	},
+	{ "QSELFREF",		QSELFREF	},
+	{ "QVERIFIED",		QVERIFIED	},
+	{ "QBOGUSSHELL",	QBOGUSSHELL	},
+	{ "QUNSAFEADDR",	QUNSAFEADDR	},
+	{ "QPINGONSUCCESS",	QPINGONSUCCESS	},
+	{ "QPINGONFAILURE",	QPINGONFAILURE	},
+	{ "QPINGONDELAY",	QPINGONDELAY	},
+	{ "QHASNOTIFY",		QHASNOTIFY	},
+	{ "QRELAYED",		QRELAYED	},
+	{ "QEXPANDED",		QEXPANDED	},
+	{ "QDELIVERED",		QDELIVERED	},
+	{ "QDELAYED",		QDELAYED	},
+	{ "QTHISPASS",		QTHISPASS	},
+	{ "QRCPTOK",		QRCPTOK		},
+	{ NULL }
+};
+
+void
+printaddr(a, follow)
+	register ADDRESS *a;
+	bool follow;
+{
+	register MAILER *m;
+	MAILER pseudomailer;
+	register struct qflags *qfp;
+	bool firstone;
+
+	if (a == NULL)
+	{
+		printf("[NULL]\n");
+		return;
+	}
+
+	while (a != NULL)
+	{
+		printf("%lx=", (u_long) a);
+		(void) fflush(stdout);
+
+		/* find the mailer -- carefully */
+		m = a->q_mailer;
+		if (m == NULL)
+		{
+			m = &pseudomailer;
+			m->m_mno = -1;
+			m->m_name = "NULL";
+		}
+
+		printf("%s:\n\tmailer %d (%s), host `%s'\n",
+		       a->q_paddr == NULL ? "<null>" : a->q_paddr,
+		       m->m_mno, m->m_name,
+		       a->q_host == NULL ? "<null>" : a->q_host);
+		printf("\tuser `%s', ruser `%s'\n",
+		       a->q_user,
+		       a->q_ruser == NULL ? "<null>" : a->q_ruser);
+		printf("\tnext=%lx, alias %lx, uid %d, gid %d\n",
+		       (u_long) a->q_next, (u_long) a->q_alias,
+		       (int) a->q_uid, (int) a->q_gid);
+		printf("\tflags=%lx<", a->q_flags);
+		firstone = TRUE;
+		for (qfp = AddressFlags; qfp->qf_name != NULL; qfp++)
+		{
+			if (!bitset(qfp->qf_bit, a->q_flags))
+				continue;
+			if (!firstone)
+				printf(",");
+			firstone = FALSE;
+			printf("%s", qfp->qf_name);
+		}
+		printf(">\n");
+		printf("\towner=%s, home=\"%s\", fullname=\"%s\"\n",
+		       a->q_owner == NULL ? "(none)" : a->q_owner,
+		       a->q_home == NULL ? "(none)" : a->q_home,
+		       a->q_fullname == NULL ? "(none)" : a->q_fullname);
+		printf("\torcpt=\"%s\", statmta=%s, status=%s\n",
+		       a->q_orcpt == NULL ? "(none)" : a->q_orcpt,
+		       a->q_statmta == NULL ? "(none)" : a->q_statmta,
+		       a->q_status == NULL ? "(none)" : a->q_status);
+		printf("\trstatus=\"%s\"\n",
+		       a->q_rstatus == NULL ? "(none)" : a->q_rstatus);
+		printf("\tspecificity=%d, statdate=%s\n",
+			a->q_specificity, ctime(&a->q_statdate));
+
+		if (!follow)
+			return;
+		a = a->q_next;
+	}
+}
+/*
+**  EMPTYADDR -- return TRUE if this address is empty (``<>'')
+**
+**	Parameters:
+**		a -- pointer to the address
+**
+**	Returns:
+**		TRUE -- if this address is "empty" (i.e., no one should
+**			ever generate replies to it.
+**		FALSE -- if it is a "regular" (read: replyable) address.
+*/
+
+bool
+emptyaddr(a)
+	register ADDRESS *a;
+{
+	return a->q_paddr == NULL || strcmp(a->q_paddr, "<>") == 0 ||
+	       a->q_user == NULL || strcmp(a->q_user, "<>") == 0;
+}
+/*
+**  REMOTENAME -- return the name relative to the current mailer
+**
+**	Parameters:
+**		name -- the name to translate.
+**		m -- the mailer that we want to do rewriting relative
+**			to.
+**		flags -- fine tune operations.
+**		pstat -- pointer to status word.
+**		e -- the current envelope.
+**
+**	Returns:
+**		the text string representing this address relative to
+**			the receiving mailer.
+**
+**	Side Effects:
+**		none.
+**
+**	Warnings:
+**		The text string returned is tucked away locally;
+**			copy it if you intend to save it.
+*/
+
+char *
+remotename(name, m, flags, pstat, e)
+	char *name;
+	struct mailer *m;
+	int flags;
+	int *pstat;
+	register ENVELOPE *e;
+{
+	register char **pvp;
+	char *fancy;
+	char *oldg = macvalue('g', e);
+	int rwset;
+	static char buf[MAXNAME + 1];
+	char lbuf[MAXNAME + 1];
+	char pvpbuf[PSBUFSIZE];
+	extern char *crackaddr();
+
+	if (tTd(12, 1))
+		printf("remotename(%s)\n", name);
+
+	/* don't do anything if we are tagging it as special */
+	if (bitset(RF_SENDERADDR, flags))
+		rwset = bitset(RF_HEADERADDR, flags) ? m->m_sh_rwset
+						     : m->m_se_rwset;
+	else
+		rwset = bitset(RF_HEADERADDR, flags) ? m->m_rh_rwset
+						     : m->m_re_rwset;
+	if (rwset < 0)
+		return (name);
+
+	/*
+	**  Do a heuristic crack of this name to extract any comment info.
+	**	This will leave the name as a comment and a $g macro.
+	*/
+
+	if (bitset(RF_CANONICAL, flags) || bitnset(M_NOCOMMENT, m->m_flags))
+		fancy = "\201g";
+	else
+		fancy = crackaddr(name);
+
+	/*
+	**  Turn the name into canonical form.
+	**	Normally this will be RFC 822 style, i.e., "user@domain".
+	**	If this only resolves to "user", and the "C" flag is
+	**	specified in the sending mailer, then the sender's
+	**	domain will be appended.
+	*/
+
+	pvp = prescan(name, '\0', pvpbuf, sizeof pvpbuf, NULL, NULL);
+	if (pvp == NULL)
+		return (name);
+	if (rewrite(pvp, 3, 0, e) == EX_TEMPFAIL)
+		*pstat = EX_TEMPFAIL;
+	if (bitset(RF_ADDDOMAIN, flags) && e->e_fromdomain != NULL)
+	{
+		/* append from domain to this address */
+		register char **pxp = pvp;
+
+		/* see if there is an "@domain" in the current name */
+		while (*pxp != NULL && strcmp(*pxp, "@") != 0)
+			pxp++;
+		if (*pxp == NULL)
+		{
+			/* no.... append the "@domain" from the sender */
+			register char **qxq = e->e_fromdomain;
+
+			while ((*pxp++ = *qxq++) != NULL)
+				continue;
+			if (rewrite(pvp, 3, 0, e) == EX_TEMPFAIL)
+				*pstat = EX_TEMPFAIL;
+		}
+	}
+
+	/*
+	**  Do more specific rewriting.
+	**	Rewrite using ruleset 1 or 2 depending on whether this is
+	**		a sender address or not.
+	**	Then run it through any receiving-mailer-specific rulesets.
+	*/
+
+	if (bitset(RF_SENDERADDR, flags))
+	{
+		if (rewrite(pvp, 1, 0, e) == EX_TEMPFAIL)
+			*pstat = EX_TEMPFAIL;
+	}
+	else
+	{
+		if (rewrite(pvp, 2, 0, e) == EX_TEMPFAIL)
+			*pstat = EX_TEMPFAIL;
+	}
+	if (rwset > 0)
+	{
+		if (rewrite(pvp, rwset, 0, e) == EX_TEMPFAIL)
+			*pstat = EX_TEMPFAIL;
+	}
+
+	/*
+	**  Do any final sanitation the address may require.
+	**	This will normally be used to turn internal forms
+	**	(e.g., user@host.LOCAL) into external form.  This
+	**	may be used as a default to the above rules.
+	*/
+
+	if (rewrite(pvp, 4, 0, e) == EX_TEMPFAIL)
+		*pstat = EX_TEMPFAIL;
+
+	/*
+	**  Now restore the comment information we had at the beginning.
+	*/
+
+	cataddr(pvp, NULL, lbuf, sizeof lbuf, '\0');
+	define('g', lbuf, e);
+
+	/* need to make sure route-addrs have <angle brackets> */
+	if (bitset(RF_CANONICAL, flags) && lbuf[0] == '@')
+		expand("<\201g>", buf, sizeof buf, e);
+	else
+		expand(fancy, buf, sizeof buf, e);
+
+	define('g', oldg, e);
+
+	if (tTd(12, 1))
+		printf("remotename => `%s'\n", buf);
+	return (buf);
+}
+/*
+**  MAPLOCALUSER -- run local username through ruleset 5 for final redirection
+**
+**	Parameters:
+**		a -- the address to map (but just the user name part).
+**		sendq -- the sendq in which to install any replacement
+**			addresses.
+**		aliaslevel -- the alias nesting depth.
+**		e -- the envelope.
+**
+**	Returns:
+**		none.
+*/
+
+#define Q_COPYFLAGS	(QPRIMARY|QBOGUSSHELL|QUNSAFEADDR|\
+			 Q_PINGFLAGS|QHASNOTIFY|\
+			 QRELAYED|QEXPANDED|QDELIVERED|QDELAYED)
+
+void
+maplocaluser(a, sendq, aliaslevel, e)
+	register ADDRESS *a;
+	ADDRESS **sendq;
+	int aliaslevel;
+	ENVELOPE *e;
+{
+	register char **pvp;
+	register ADDRESS *a1 = NULL;
+	auto char *delimptr;
+	char pvpbuf[PSBUFSIZE];
+
+	if (tTd(29, 1))
+	{
+		printf("maplocaluser: ");
+		printaddr(a, FALSE);
+	}
+	pvp = prescan(a->q_user, '\0', pvpbuf, sizeof pvpbuf, &delimptr, NULL);
+	if (pvp == NULL)
+	{
+		if (tTd(29, 9))
+			printf("maplocaluser: cannot prescan %s\n", a->q_user);
+		return;
+	}
+
+	define('h', a->q_host, e);
+	define('u', a->q_user, e);
+	define('z', a->q_home, e);
+ 
+	if (rewrite(pvp, 5, 0, e) == EX_TEMPFAIL)
+	{
+		if (tTd(29, 9))
+			printf("maplocaluser: rewrite tempfail\n");
+		a->q_flags |= QQUEUEUP;
+		a->q_status = "4.4.3";
+		return;
+	}
+	if (pvp[0] == NULL || (pvp[0][0] & 0377) != CANONNET)
+	{
+		if (tTd(29, 9))
+			printf("maplocaluser: doesn't resolve\n");
+		return;
+	}
+
+	/* if non-null, mailer destination specified -- has it changed? */
+	a1 = buildaddr(pvp, NULL, 0, e);
+	if (a1 == NULL || sameaddr(a, a1))
+	{
+		if (tTd(29, 9))
+			printf("maplocaluser: address unchanged\n");
+		if (a1 != NULL)
+			free(a1);
+		return;
+	}
+
+	/* make new address take on flags and print attributes of old */
+	a1->q_flags &= ~Q_COPYFLAGS;
+	a1->q_flags |= a->q_flags & Q_COPYFLAGS;
+	a1->q_paddr = a->q_paddr;
+
+	/* mark old address as dead; insert new address */
+	a->q_flags |= QDONTSEND;
+	if (tTd(29, 5))
+	{
+		printf("maplocaluser: QDONTSEND ");
+		printaddr(a, FALSE);
+	}
+	a1->q_alias = a;
+	allocaddr(a1, RF_COPYALL, a->q_paddr);
+	(void) recipient(a1, sendq, aliaslevel, e);
+}
+/*
+**  DEQUOTE_INIT -- initialize dequote map
+**
+**	This is a no-op.
+**
+**	Parameters:
+**		map -- the internal map structure.
+**		args -- arguments.
+**
+**	Returns:
+**		TRUE.
+*/
+
+bool
+dequote_init(map, args)
+	MAP *map;
+	char *args;
+{
+	register char *p = args;
+
+	map->map_mflags |= MF_KEEPQUOTES;
+	for (;;)
+	{
+		while (isascii(*p) && isspace(*p))
+			p++;
+		if (*p != '-')
+			break;
+		switch (*++p)
+		{
+		  case 'a':
+			map->map_app = ++p;
+			break;
+
+		  case 's':
+			map->map_coldelim = *++p;
+			break;
+		}
+		while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+			p++;
+		if (*p != '\0')
+			*p = '\0';
+	}
+	if (map->map_app != NULL)
+		map->map_app = newstr(map->map_app);
+
+	return TRUE;
+}
+/*
+**  DEQUOTE_MAP -- unquote an address
+**
+**	Parameters:
+**		map -- the internal map structure (ignored).
+**		name -- the name to dequote.
+**		av -- arguments (ignored).
+**		statp -- pointer to status out-parameter.
+**
+**	Returns:
+**		NULL -- if there were no quotes, or if the resulting
+**			unquoted buffer would not be acceptable to prescan.
+**		else -- The dequoted buffer.
+*/
+
+char *
+dequote_map(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	register char *p;
+	register char *q;
+	register char c;
+	int anglecnt = 0;
+	int cmntcnt = 0;
+	int quotecnt = 0;
+	int spacecnt = 0;
+	bool quotemode = FALSE;
+	bool bslashmode = FALSE;
+	char spacesub = map->map_coldelim;
+
+	for (p = q = name; (c = *p++) != '\0'; )
+	{
+		if (bslashmode)
+		{
+			bslashmode = FALSE;
+			*q++ = c;
+			continue;
+		}
+
+		if (c == ' ' && spacesub != '\0')
+			c = spacesub;
+
+		switch (c)
+		{
+		  case '\\':
+			bslashmode = TRUE;
+			break;
+
+		  case '(':
+			cmntcnt++;
+			break;
+
+		  case ')':
+			if (cmntcnt-- <= 0)
+				return NULL;
+			break;
+
+		  case ' ':
+			spacecnt++;
+			break;
+		}
+
+		if (cmntcnt > 0)
+		{
+			*q++ = c;
+			continue;
+		}
+
+		switch (c)
+		{
+		  case '"':
+			quotemode = !quotemode;
+			quotecnt++;
+			continue;
+
+		  case '<':
+			anglecnt++;
+			break;
+
+		  case '>':
+			if (anglecnt-- <= 0)
+				return NULL;
+			break;
+		}
+		*q++ = c;
+	}
+
+	if (anglecnt != 0 || cmntcnt != 0 || bslashmode ||
+	    quotemode || quotecnt <= 0 || spacecnt != 0)
+		return NULL;
+	*q++ = '\0';
+	return map_rewrite(map, name, strlen(name), NULL);
+}
+/*
+**  RSCHECK -- check string(s) for validity using rewriting sets
+**
+**	Parameters:
+**		rwset -- the rewriting set to use.
+**		p1 -- the first string to check.
+**		p2 -- the second string to check -- may be null.
+**		e -- the current envelope.
+**
+**	Returns:
+**		EX_OK -- if the rwset doesn't resolve to $#error
+**		else -- the failure status (message printed)
+*/
+
+int
+rscheck(rwset, p1, p2, e)
+	char *rwset;
+	char *p1;
+	char *p2;
+	ENVELOPE *e;
+{
+	char *buf;
+	int bufsize;
+	int saveexitstat;
+	int rstat;
+	char **pvp;
+	int rsno;
+	auto ADDRESS a1;
+	bool saveQuickAbort = QuickAbort;
+	bool saveSuprErrs = SuprErrs;
+	char buf0[MAXLINE];
+	char pvpbuf[PSBUFSIZE];
+	extern char MsgBuf[];
+
+	if (tTd(48, 2))
+		printf("rscheck(%s, %s, %s)\n", rwset, p1,
+			p2 == NULL ? "(NULL)" : p2);
+
+	rsno = strtorwset(rwset, NULL, ST_FIND);
+	if (rsno < 0)
+		return EX_OK;
+
+	if (p2 != NULL)
+	{
+		bufsize = strlen(p1) + strlen(p2) + 2;
+		if (bufsize > sizeof buf0)
+			buf = xalloc(bufsize);
+		else
+		{
+			buf = buf0;
+			bufsize = sizeof buf0;
+		}
+		(void) snprintf(buf, bufsize, "%s%c%s", p1, CONDELSE, p2);
+	}
+	else
+	{
+		bufsize = strlen(p1) + 1;
+		if (bufsize > sizeof buf0)
+			buf = xalloc(bufsize);
+		else
+		{
+			buf = buf0;
+			bufsize = sizeof buf0;
+		}
+		(void) snprintf(buf, bufsize, "%s", p1);
+	}
+	SuprErrs = TRUE;
+	QuickAbort = FALSE;
+	pvp = prescan(buf, '\0', pvpbuf, sizeof pvpbuf, NULL, NULL);
+	SuprErrs = saveSuprErrs;
+	if (pvp == NULL)
+	{
+		syserr("rscheck: cannot prescan input: \"%s\"",
+			shortenstring(buf, 203));
+		rstat = EX_DATAERR;
+		goto finis;
+	}
+	(void) rewrite(pvp, rsno, 0, e);
+	if (pvp[0] == NULL || (pvp[0][0] & 0377) != CANONNET ||
+	    pvp[1] == NULL || strcmp(pvp[1], "error") != 0)
+	{
+		rstat = EX_OK;
+		goto finis;
+	}
+
+	/* got an error -- process it */
+	saveexitstat = ExitStat;
+	(void) buildaddr(pvp, &a1, 0, e);
+	rstat = ExitStat;
+	ExitStat = saveexitstat;
+
+	if (LogLevel >= 4)
+	{
+		char *relay;
+		char *p;
+		char lbuf[MAXLINE];
+
+		p = lbuf;
+		if (p2 != NULL)
+		{
+			snprintf(p, SPACELEFT(lbuf, p),
+				", arg2=%s",
+				p2);
+			p += strlen(p);
+		}
+		if ((relay = macvalue('_', e)) != NULL)
+		{
+			snprintf(p, SPACELEFT(lbuf, p),
+				", relay=%s", relay);
+			p += strlen(p);
+		}
+		*p = '\0';
+		sm_syslog(LOG_NOTICE, e->e_id,
+			"ruleset=%s, arg1=%s%s, reject=%s",
+			rwset, p1, lbuf, MsgBuf);
+	}
+
+ finis:
+	/* clean up */
+	QuickAbort = saveQuickAbort;
+	setstat(rstat);
+	if (buf != buf0)
+		free(buf);
+
+	if (rstat != EX_OK && QuickAbort)
+		longjmp(TopFrame, 2);
+	return rstat;
+}
diff --git a/src/pathnames.h b/src/pathnames.h
new file mode 100644
index 0000000..a364fba
--- /dev/null
+++ b/src/pathnames.h
@@ -0,0 +1,54 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)pathnames.h	8.4 (Berkeley) 6/19/95
+ */
+
+#ifndef _PATH_SENDMAILCF
+# if defined(USE_VENDOR_CF_PATH) && defined(_PATH_VENDOR_CF)
+#  define _PATH_SENDMAILCF	_PATH_VENDOR_CF
+# else
+#  define _PATH_SENDMAILCF	"/etc/sendmail.cf"
+# endif
+#endif
+
+#ifndef _PATH_SENDMAILPID
+# ifdef BSD4_4
+#  define _PATH_SENDMAILPID	"/var/run/sendmail.pid"
+# else
+#  define _PATH_SENDMAILPID	"/etc/sendmail.pid"
+# endif
+#endif
+
+#ifndef _PATH_HOSTS
+# define _PATH_HOSTS		"/etc/hosts"
+#endif
diff --git a/src/queue.c b/src/queue.c
new file mode 100644
index 0000000..d48efb1
--- /dev/null
+++ b/src/queue.c
@@ -0,0 +1,2346 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+# include "sendmail.h"
+
+#ifndef lint
+#if QUEUE
+static char sccsid[] = "@(#)queue.c	8.175 (Berkeley) 10/4/97 (with queueing)";
+#else
+static char sccsid[] = "@(#)queue.c	8.175 (Berkeley) 10/4/97 (without queueing)";
+#endif
+#endif /* not lint */
+
+# include <errno.h>
+# include <dirent.h>
+
+# if QUEUE
+
+/*
+**  Work queue.
+*/
+
+struct work
+{
+	char		*w_name;	/* name of control file */
+	char		*w_host;	/* name of recipient host */
+	bool		w_lock;		/* is message locked? */
+	bool		w_tooyoung;	/* is it too young to run? */
+	long		w_pri;		/* priority of message, see below */
+	time_t		w_ctime;	/* creation time of message */
+	struct work	*w_next;	/* next in queue */
+};
+
+typedef struct work	WORK;
+
+WORK	*WorkQ;			/* queue of things to be done */
+
+#define QF_VERSION	2	/* version number of this queue format */
+
+extern int orderq __P((bool));
+/*
+**  QUEUEUP -- queue a message up for future transmission.
+**
+**	Parameters:
+**		e -- the envelope to queue up.
+**		announce -- if TRUE, tell when you are queueing up.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		The current request are saved in a control file.
+**		The queue file is left locked.
+*/
+
+void
+queueup(e, announce)
+	register ENVELOPE *e;
+	bool announce;
+{
+	char *qf;
+	register FILE *tfp;
+	register HDR *h;
+	register ADDRESS *q;
+	int fd;
+	int i;
+	bool newid;
+	register char *p;
+	MAILER nullmailer;
+	MCI mcibuf;
+	char tf[MAXQFNAME];
+	char buf[MAXLINE];
+	extern void printctladdr __P((ADDRESS *, FILE *));
+
+	/*
+	**  Create control file.
+	*/
+
+	newid = (e->e_id == NULL) || !bitset(EF_INQUEUE, e->e_flags);
+
+	/* if newid, queuename will create a locked qf file in e->lockfp */
+	strcpy(tf, queuename(e, 't'));
+	tfp = e->e_lockfp;
+	if (tfp == NULL)
+		newid = FALSE;
+
+	/* if newid, just write the qf file directly (instead of tf file) */
+	if (!newid)
+	{
+		/* get a locked tf file */
+		for (i = 0; i < 128; i++)
+		{
+			fd = open(tf, O_CREAT|O_WRONLY|O_EXCL, FileMode);
+			if (fd < 0)
+			{
+				if (errno != EEXIST)
+					break;
+				if (LogLevel > 0 && (i % 32) == 0)
+					sm_syslog(LOG_ALERT, e->e_id,
+						"queueup: cannot create %s, uid=%d: %s",
+						tf, geteuid(), errstring(errno));
+			}
+			else
+			{
+				if (lockfile(fd, tf, NULL, LOCK_EX|LOCK_NB))
+					break;
+				else if (LogLevel > 0 && (i % 32) == 0)
+					sm_syslog(LOG_ALERT, e->e_id,
+						"queueup: cannot lock %s: %s",
+						tf, errstring(errno));
+				close(fd);
+			}
+
+			if ((i % 32) == 31)
+			{
+				/* save the old temp file away */
+				(void) rename(tf, queuename(e, 'T'));
+			}
+			else
+				sleep(i % 32);
+		}
+		if (fd < 0 || (tfp = fdopen(fd, "w")) == NULL)
+		{
+			printopenfds(TRUE);
+			syserr("!queueup: cannot create queue temp file %s, uid=%d",
+				tf, geteuid());
+		}
+	}
+
+	if (tTd(40, 1))
+		printf("\n>>>>> queueing %s%s >>>>>\n", e->e_id,
+			newid ? " (new id)" : "");
+	if (tTd(40, 3))
+	{
+		extern void printenvflags();
+
+		printf("  e_flags=");
+		printenvflags(e);
+	}
+	if (tTd(40, 32))
+	{
+		printf("  sendq=");
+		printaddr(e->e_sendqueue, TRUE);
+	}
+	if (tTd(40, 9))
+	{
+		printf("  tfp=");
+		dumpfd(fileno(tfp), TRUE, FALSE);
+		printf("  lockfp=");
+		if (e->e_lockfp == NULL)
+			printf("NULL\n");
+		else
+			dumpfd(fileno(e->e_lockfp), TRUE, FALSE);
+	}
+
+	/*
+	**  If there is no data file yet, create one.
+	*/
+
+	if (!bitset(EF_HAS_DF, e->e_flags))
+	{
+		register FILE *dfp = NULL;
+		char dfname[MAXQFNAME];
+		struct stat stbuf;
+
+		strcpy(dfname, queuename(e, 'd'));
+		fd = open(dfname, O_WRONLY|O_CREAT|O_TRUNC, FileMode);
+		if (fd < 0 || (dfp = fdopen(fd, "w")) == NULL)
+			syserr("!queueup: cannot create data temp file %s, uid=%d",
+				dfname, geteuid());
+		if (fstat(fd, &stbuf) < 0)
+			e->e_dfino = -1;
+		else
+		{
+			e->e_dfdev = stbuf.st_dev;
+			e->e_dfino = stbuf.st_ino;
+		}
+		e->e_flags |= EF_HAS_DF;
+		bzero(&mcibuf, sizeof mcibuf);
+		mcibuf.mci_out = dfp;
+		mcibuf.mci_mailer = FileMailer;
+		(*e->e_putbody)(&mcibuf, e, NULL);
+		(void) xfclose(dfp, "queueup dfp", e->e_id);
+		e->e_putbody = putbody;
+	}
+
+	/*
+	**  Output future work requests.
+	**	Priority and creation time should be first, since
+	**	they are required by orderq.
+	*/
+
+	/* output queue version number (must be first!) */
+	fprintf(tfp, "V%d\n", QF_VERSION);
+
+	/* output creation time */
+	fprintf(tfp, "T%ld\n", e->e_ctime);
+
+	/* output last delivery time */
+	fprintf(tfp, "K%ld\n", e->e_dtime);
+
+	/* output number of delivery attempts */
+	fprintf(tfp, "N%d\n", e->e_ntries);
+
+	/* output message priority */
+	fprintf(tfp, "P%ld\n", e->e_msgpriority);
+
+	/* output inode number of data file */
+	/* XXX should probably include device major/minor too */
+	if (e->e_dfino != -1)
+		fprintf(tfp, "I%d/%d/%ld\n",
+			major(e->e_dfdev), minor(e->e_dfdev), e->e_dfino);
+
+	/* output body type */
+	if (e->e_bodytype != NULL)
+		fprintf(tfp, "B%s\n", denlstring(e->e_bodytype, TRUE, FALSE));
+
+#if _FFR_SAVE_CHARSET
+	if (e->e_charset != NULL)
+		fprintf(tfp, "X%s\n", denlstring(e->e_charset, TRUE, FALSE));
+#endif
+
+	/* message from envelope, if it exists */
+	if (e->e_message != NULL)
+		fprintf(tfp, "M%s\n", denlstring(e->e_message, TRUE, FALSE));
+
+	/* send various flag bits through */
+	p = buf;
+	if (bitset(EF_WARNING, e->e_flags))
+		*p++ = 'w';
+	if (bitset(EF_RESPONSE, e->e_flags))
+		*p++ = 'r';
+	if (bitset(EF_HAS8BIT, e->e_flags))
+		*p++ = '8';
+	if (bitset(EF_DELETE_BCC, e->e_flags))
+		*p++ = 'b';
+	if (bitset(EF_RET_PARAM, e->e_flags))
+		*p++ = 'd';
+	if (bitset(EF_NO_BODY_RETN, e->e_flags))
+		*p++ = 'n';
+	*p++ = '\0';
+	if (buf[0] != '\0')
+		fprintf(tfp, "F%s\n", buf);
+
+	/* $r and $s and $_ macro values */
+	if ((p = macvalue('r', e)) != NULL)
+		fprintf(tfp, "$r%s\n", denlstring(p, TRUE, FALSE));
+	if ((p = macvalue('s', e)) != NULL)
+		fprintf(tfp, "$s%s\n", denlstring(p, TRUE, FALSE));
+	if ((p = macvalue('_', e)) != NULL)
+		fprintf(tfp, "$_%s\n", denlstring(p, TRUE, FALSE));
+
+	/* output name of sender */
+	if (bitnset(M_UDBENVELOPE, e->e_from.q_mailer->m_flags))
+		p = e->e_sender;
+	else
+		p = e->e_from.q_paddr;
+	fprintf(tfp, "S%s\n", denlstring(p, TRUE, FALSE));
+
+	/* output ESMTP-supplied "original" information */
+	if (e->e_envid != NULL)
+		fprintf(tfp, "Z%s\n", denlstring(e->e_envid, TRUE, FALSE));
+
+	/* output list of recipient addresses */
+	printctladdr(NULL, NULL);
+	for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+	{
+		if (bitset(QDONTSEND|QBADADDR|QSENT, q->q_flags))
+		{
+#if XDEBUG
+			if (bitset(QQUEUEUP, q->q_flags))
+				sm_syslog(LOG_DEBUG, e->e_id,
+					"dropenvelope: q_flags = %x, paddr = %s",
+					q->q_flags, q->q_paddr);
+#endif
+			continue;
+		}
+		printctladdr(q, tfp);
+		if (q->q_orcpt != NULL)
+			fprintf(tfp, "Q%s\n",
+				denlstring(q->q_orcpt, TRUE, FALSE));
+		putc('R', tfp);
+		if (bitset(QPRIMARY, q->q_flags))
+			putc('P', tfp);
+		if (bitset(QHASNOTIFY, q->q_flags))
+			putc('N', tfp);
+		if (bitset(QPINGONSUCCESS, q->q_flags))
+			putc('S', tfp);
+		if (bitset(QPINGONFAILURE, q->q_flags))
+			putc('F', tfp);
+		if (bitset(QPINGONDELAY, q->q_flags))
+			putc('D', tfp);
+		putc(':', tfp);
+		fprintf(tfp, "%s\n", denlstring(q->q_paddr, TRUE, FALSE));
+		if (announce)
+		{
+			e->e_to = q->q_paddr;
+			message("queued");
+			if (LogLevel > 8)
+				logdelivery(q->q_mailer, NULL, "queued",
+					    NULL, (time_t) 0, e);
+			e->e_to = NULL;
+		}
+		if (tTd(40, 1))
+		{
+			printf("queueing ");
+			printaddr(q, FALSE);
+		}
+	}
+
+	/*
+	**  Output headers for this message.
+	**	Expand macros completely here.  Queue run will deal with
+	**	everything as absolute headers.
+	**		All headers that must be relative to the recipient
+	**		can be cracked later.
+	**	We set up a "null mailer" -- i.e., a mailer that will have
+	**	no effect on the addresses as they are output.
+	*/
+
+	bzero((char *) &nullmailer, sizeof nullmailer);
+	nullmailer.m_re_rwset = nullmailer.m_rh_rwset =
+			nullmailer.m_se_rwset = nullmailer.m_sh_rwset = -1;
+	nullmailer.m_eol = "\n";
+	bzero(&mcibuf, sizeof mcibuf);
+	mcibuf.mci_mailer = &nullmailer;
+	mcibuf.mci_out = tfp;
+
+	define('g', "\201f", e);
+	for (h = e->e_header; h != NULL; h = h->h_link)
+	{
+		extern bool bitzerop();
+
+		/* don't output null headers */
+		if (h->h_value == NULL || h->h_value[0] == '\0')
+			continue;
+
+		/* don't output resent headers on non-resent messages */
+		if (bitset(H_RESENT, h->h_flags) && !bitset(EF_RESENT, e->e_flags))
+			continue;
+
+		/* expand macros; if null, don't output header at all */
+		if (bitset(H_DEFAULT, h->h_flags))
+		{
+			(void) expand(h->h_value, buf, sizeof buf, e);
+			if (buf[0] == '\0')
+				continue;
+		}
+
+		/* output this header */
+		fprintf(tfp, "H");
+
+		/* if conditional, output the set of conditions */
+		if (!bitzerop(h->h_mflags) && bitset(H_CHECK|H_ACHECK, h->h_flags))
+		{
+			int j;
+
+			(void) putc('?', tfp);
+			for (j = '\0'; j <= '\177'; j++)
+				if (bitnset(j, h->h_mflags))
+					(void) putc(j, tfp);
+			(void) putc('?', tfp);
+		}
+
+		/* output the header: expand macros, convert addresses */
+		if (bitset(H_DEFAULT, h->h_flags))
+		{
+			fprintf(tfp, "%s: %s\n",
+				h->h_field,
+				denlstring(buf, FALSE, TRUE));
+		}
+		else if (bitset(H_FROM|H_RCPT, h->h_flags))
+		{
+			bool oldstyle = bitset(EF_OLDSTYLE, e->e_flags);
+			FILE *savetrace = TrafficLogFile;
+
+			TrafficLogFile = NULL;
+
+			if (bitset(H_FROM, h->h_flags))
+				oldstyle = FALSE;
+
+			commaize(h, h->h_value, oldstyle, &mcibuf, e);
+
+			TrafficLogFile = savetrace;
+		}
+		else
+		{
+			fprintf(tfp, "%s: %s\n",
+				h->h_field,
+				denlstring(h->h_value, FALSE, TRUE));
+		}
+	}
+
+	/*
+	**  Clean up.
+	**
+	**	Write a terminator record -- this is to prevent
+	**	scurrilous crackers from appending any data.
+	*/
+
+	fprintf(tfp, ".\n");
+
+	if (fflush(tfp) < 0 ||
+	    (SuperSafe && fsync(fileno(tfp)) < 0) ||
+	    ferror(tfp))
+	{
+		if (newid)
+			syserr("!552 Error writing control file %s", tf);
+		else
+			syserr("!452 Error writing control file %s", tf);
+	}
+
+	if (!newid)
+	{
+		/* rename (locked) tf to be (locked) qf */
+		qf = queuename(e, 'q');
+		if (rename(tf, qf) < 0)
+			syserr("cannot rename(%s, %s), uid=%d",
+				tf, qf, geteuid());
+
+		/* close and unlock old (locked) qf */
+		if (e->e_lockfp != NULL)
+			(void) xfclose(e->e_lockfp, "queueup lockfp", e->e_id);
+		e->e_lockfp = tfp;
+	}
+	else
+		qf = tf;
+	errno = 0;
+	e->e_flags |= EF_INQUEUE;
+
+	/* save log info */
+	if (LogLevel > 79)
+		sm_syslog(LOG_DEBUG, e->e_id, "queueup, qf=%s", qf);
+
+	if (tTd(40, 1))
+		printf("<<<<< done queueing %s <<<<<\n\n", e->e_id);
+	return;
+}
+
+void
+printctladdr(a, tfp)
+	register ADDRESS *a;
+	FILE *tfp;
+{
+	char *uname;
+	register ADDRESS *q;
+	uid_t uid;
+	gid_t gid;
+	static ADDRESS *lastctladdr;
+	static uid_t lastuid;
+
+	/* initialization */
+	if (a == NULL || a->q_alias == NULL || tfp == NULL)
+	{
+		if (lastctladdr != NULL && tfp != NULL)
+			fprintf(tfp, "C\n");
+		lastctladdr = NULL;
+		lastuid = 0;
+		return;
+	}
+
+	/* find the active uid */
+	q = getctladdr(a);
+	if (q == NULL)
+	{
+		uname = NULL;
+		uid = 0;
+		gid = 0;
+	}
+	else
+	{
+		uname = q->q_ruser != NULL ? q->q_ruser : q->q_user;
+		uid = q->q_uid;
+		gid = q->q_gid;
+	}
+	a = a->q_alias;
+
+	/* check to see if this is the same as last time */
+	if (lastctladdr != NULL && uid == lastuid &&
+	    strcmp(lastctladdr->q_paddr, a->q_paddr) == 0)
+		return;
+	lastuid = uid;
+	lastctladdr = a;
+
+	if (uid == 0 || uname == NULL || uname[0] == '\0')
+		fprintf(tfp, "C");
+	else
+		fprintf(tfp, "C%s:%ld:%ld",
+			denlstring(uname, TRUE, FALSE), (long) uid, (long) gid);
+	fprintf(tfp, ":%s\n", denlstring(a->q_paddr, TRUE, FALSE));
+}
+/*
+**  RUNQUEUE -- run the jobs in the queue.
+**
+**	Gets the stuff out of the queue in some presumably logical
+**	order and processes them.
+**
+**	Parameters:
+**		forkflag -- TRUE if the queue scanning should be done in
+**			a child process.  We double-fork so it is not our
+**			child and we don't have to clean up after it.
+**		verbose -- if TRUE, print out status information.
+**
+**	Returns:
+**		TRUE if the queue run successfully began.
+**
+**	Side Effects:
+**		runs things in the mail queue.
+*/
+
+ENVELOPE	QueueEnvelope;		/* the queue run envelope */
+extern int	get_num_procs_online __P((void));
+
+bool
+runqueue(forkflag, verbose)
+	bool forkflag;
+	bool verbose;
+{
+	register ENVELOPE *e;
+	int njobs;
+	int sequenceno = 0;
+	time_t current_la_time;
+	extern ENVELOPE BlankEnvelope;
+	extern void clrdaemon __P((void));
+	extern void runqueueevent __P((void));
+
+	DoQueueRun = FALSE;
+
+	/*
+	**  If no work will ever be selected, don't even bother reading
+	**  the queue.
+	*/
+
+	CurrentLA = getla();	/* get load average */
+	current_la_time = curtime();
+
+	if (shouldqueue(WkRecipFact, current_la_time))
+	{
+		char *msg = "Skipping queue run -- load average too high";
+
+		if (verbose)
+			message("458 %s\n", msg);
+		if (LogLevel > 8)
+			sm_syslog(LOG_INFO, NOQID,
+				"runqueue: %s",
+				msg);
+		if (forkflag && QueueIntvl != 0)
+			(void) setevent(QueueIntvl, runqueueevent, 0);
+		return FALSE;
+	}
+
+	/*
+	**  See if we already have too many children.
+	*/
+
+	if (forkflag && QueueIntvl != 0 &&
+	    MaxChildren > 0 && CurChildren >= MaxChildren)
+	{
+		(void) setevent(QueueIntvl, runqueueevent, 0);
+		return FALSE;
+	}
+
+	/*
+	**  See if we want to go off and do other useful work.
+	*/
+
+	if (forkflag)
+	{
+		pid_t pid;
+		extern SIGFUNC_DECL intsig __P((int));
+#ifdef SIGCHLD
+		extern SIGFUNC_DECL reapchild __P((int));
+
+		blocksignal(SIGCHLD);
+		(void) setsignal(SIGCHLD, reapchild);
+#endif
+
+		pid = dofork();
+		if (pid == -1)
+		{
+			const char *msg = "Skipping queue run -- fork() failed";
+			const char *err = errstring(errno);
+
+			if (verbose)
+				message("458 %s: %s\n", msg, err);
+			if (LogLevel > 8)
+				sm_syslog(LOG_INFO, NOQID,
+					"runqueue: %s: %s",
+					msg, err);
+			if (QueueIntvl != 0)
+				(void) setevent(QueueIntvl, runqueueevent, 0);
+			(void) releasesignal(SIGCHLD);
+			return FALSE;
+		}
+		if (pid != 0)
+		{
+			/* parent -- pick up intermediate zombie */
+#ifndef SIGCHLD
+			(void) waitfor(pid);
+#else
+			(void) blocksignal(SIGALRM);
+			proc_list_add(pid);
+			(void) releasesignal(SIGALRM);
+			releasesignal(SIGCHLD);
+#endif /* SIGCHLD */
+			if (QueueIntvl != 0)
+				(void) setevent(QueueIntvl, runqueueevent, 0);
+			return TRUE;
+		}
+		/* child -- double fork and clean up signals */
+		proc_list_clear();
+#ifndef SIGCHLD
+		if (fork() != 0)
+			exit(EX_OK);
+#else /* SIGCHLD */
+		releasesignal(SIGCHLD);
+		(void) setsignal(SIGCHLD, SIG_DFL);
+#endif /* SIGCHLD */
+		(void) setsignal(SIGHUP, intsig);
+	}
+
+	setproctitle("running queue: %s", QueueDir);
+
+	if (LogLevel > 69)
+		sm_syslog(LOG_DEBUG, NOQID,
+			"runqueue %s, pid=%d, forkflag=%d",
+			QueueDir, getpid(), forkflag);
+
+	/*
+	**  Release any resources used by the daemon code.
+	*/
+
+# if DAEMON
+	clrdaemon();
+# endif /* DAEMON */
+
+	/* force it to run expensive jobs */
+	NoConnect = FALSE;
+
+	/* drop privileges */
+	if (geteuid() == (uid_t) 0)
+		(void) drop_privileges(FALSE);
+
+	/*
+	**  Create ourselves an envelope
+	*/
+
+	CurEnv = &QueueEnvelope;
+	e = newenvelope(&QueueEnvelope, CurEnv);
+	e->e_flags = BlankEnvelope.e_flags;
+
+	/* make sure we have disconnected from parent */
+	if (forkflag)
+	{
+		disconnect(1, e);
+		QuickAbort = FALSE;
+	}
+
+	/*
+	**  Make sure the alias database is open.
+	*/
+
+	initmaps(FALSE, e);
+
+	/*
+	**  If we are running part of the queue, always ignore stored
+	**  host status.
+	*/
+
+	if (QueueLimitId != NULL || QueueLimitSender != NULL ||
+	    QueueLimitRecipient != NULL)
+	{
+		IgnoreHostStatus = TRUE;
+		MinQueueAge = 0;
+	}
+
+	/*
+	**  Start making passes through the queue.
+	**	First, read and sort the entire queue.
+	**	Then, process the work in that order.
+	**		But if you take too long, start over.
+	*/
+
+	/* order the existing work requests */
+	njobs = orderq(FALSE);
+
+	/* process them once at a time */
+	while (WorkQ != NULL)
+	{
+		WORK *w = WorkQ;
+
+		WorkQ = WorkQ->w_next;
+		e->e_to = NULL;
+
+		/*
+		**  Ignore jobs that are too expensive for the moment.
+		**
+		**	Get new load average every 30 seconds.
+		*/
+
+		if (current_la_time < curtime() - 30)
+		{
+			CurrentLA = getla();
+			current_la_time = curtime();
+		}
+		if (shouldqueue(WkRecipFact, current_la_time))
+		{
+			char *msg = "Aborting queue run: load average too high";
+
+			if (Verbose)
+				message("%s", msg);
+			if (LogLevel > 8)
+				sm_syslog(LOG_INFO, NOQID,
+					"runqueue: %s",
+					msg);
+			break;
+		}
+		sequenceno++;
+		if (shouldqueue(w->w_pri, w->w_ctime))
+		{
+			if (Verbose)
+				message("");
+			if (QueueSortOrder == QS_BYPRIORITY)
+			{
+				if (Verbose)
+					message("Skipping %s (sequence %d of %d) and flushing rest of queue",
+						w->w_name + 2,
+						sequenceno,
+						njobs);
+				if (LogLevel > 8)
+					sm_syslog(LOG_INFO, NOQID,
+						"runqueue: Flushing queue from %s (pri %ld, LA %d, %d of %d)",
+						w->w_name + 2,
+						w->w_pri,
+						CurrentLA,
+						sequenceno,
+						njobs);
+				break;
+			}
+			else if (Verbose)
+				message("Skipping %s (sequence %d of %d)",
+					w->w_name + 2, sequenceno, njobs);
+		}
+		else
+		{
+			pid_t pid;
+			extern pid_t dowork();
+
+			if (Verbose)
+			{
+				message("");
+				message("Running %s (sequence %d of %d)",
+					w->w_name + 2, sequenceno, njobs);
+			}
+			pid = dowork(w->w_name + 2, ForkQueueRuns, FALSE, e);
+			errno = 0;
+			if (pid != 0)
+				(void) waitfor(pid);
+		}
+		free(w->w_name);
+		if (w->w_host)
+			free(w->w_host);
+		free((char *) w);
+	}
+
+	/* exit without the usual cleanup */
+	e->e_id = NULL;
+	finis();
+	/*NOTREACHED*/
+	return TRUE;
+}
+
+
+/*
+**  RUNQUEUEEVENT -- stub for use in setevent
+*/
+
+void
+runqueueevent()
+{
+	DoQueueRun = TRUE;
+}
+/*
+**  ORDERQ -- order the work queue.
+**
+**	Parameters:
+**		doall -- if set, include everything in the queue (even
+**			the jobs that cannot be run because the load
+**			average is too high).  Otherwise, exclude those
+**			jobs.
+**
+**	Returns:
+**		The number of request in the queue (not necessarily
+**		the number of requests in WorkQ however).
+**
+**	Side Effects:
+**		Sets WorkQ to the queue of available work, in order.
+*/
+
+# define NEED_P		001
+# define NEED_T		002
+# define NEED_R		004
+# define NEED_S		010
+
+static WORK	*WorkList = NULL;
+static int	WorkListSize = 0;
+
+int
+orderq(doall)
+	bool doall;
+{
+	register struct dirent *d;
+	register WORK *w;
+	DIR *f;
+	register int i;
+	int wn = -1;
+	int wc;
+
+	if (tTd(41, 1))
+	{
+		printf("orderq:\n");
+		if (QueueLimitId != NULL)
+			printf("\tQueueLimitId = %s\n", QueueLimitId);
+		if (QueueLimitSender != NULL)
+			printf("\tQueueLimitSender = %s\n", QueueLimitSender);
+		if (QueueLimitRecipient != NULL)
+			printf("\tQueueLimitRecipient = %s\n", QueueLimitRecipient);
+	}
+
+	/* clear out old WorkQ */
+	for (w = WorkQ; w != NULL; )
+	{
+		register WORK *nw = w->w_next;
+
+		WorkQ = nw;
+		free(w->w_name);
+		if (w->w_host)
+			free(w->w_host);
+		free((char *) w);
+		w = nw;
+	}
+
+	/* open the queue directory */
+	f = opendir(".");
+	if (f == NULL)
+	{
+		syserr("orderq: cannot open \"%s\" as \".\"", QueueDir);
+		return (0);
+	}
+
+	/*
+	**  Read the work directory.
+	*/
+
+	while ((d = readdir(f)) != NULL)
+	{
+		FILE *cf;
+		register char *p;
+		char lbuf[MAXNAME + 1];
+		extern bool strcontainedin();
+
+		if (tTd(41, 50))
+			printf("orderq: checking %s\n", d->d_name);
+
+		/* is this an interesting entry? */
+		if (d->d_name[0] != 'q' || d->d_name[1] != 'f')
+			continue;
+
+		if (strlen(d->d_name) > MAXQFNAME)
+			continue;
+
+		if (QueueLimitId != NULL &&
+		    !strcontainedin(QueueLimitId, d->d_name))
+			continue;
+
+#ifdef PICKY_QF_NAME_CHECK
+		/*
+		**  Check queue name for plausibility.  This handles
+		**  both old and new type ids.
+		*/
+
+		p = d->d_name + 2;
+		if (isupper(p[0]) && isupper(p[2]))
+			p += 3;
+		else if (isupper(p[1]))
+			p += 2;
+		else
+			p = d->d_name;
+		for (i = 0; isdigit(*p); p++)
+			i++;
+		if (i < 5 || *p != '\0')
+		{
+			if (Verbose)
+				printf("orderq: bogus qf name %s\n", d->d_name);
+			if (LogLevel > 0)
+				sm_syslog(LOG_ALERT, NOQID,
+					"orderq: bogus qf name %s",
+					d->d_name);
+			if (strlen(d->d_name) > (SIZE_T) MAXNAME)
+				d->d_name[MAXNAME] = '\0';
+			strcpy(lbuf, d->d_name);
+			lbuf[0] = 'Q';
+			(void) rename(d->d_name, lbuf);
+			continue;
+		}
+#endif
+
+		/* open control file (if not too many files) */
+		if (++wn >= MaxQueueRun && MaxQueueRun > 0)
+		{
+			if (wn == MaxQueueRun && LogLevel > 0)
+				sm_syslog(LOG_ALERT, NOQID,
+					"WorkList for %s maxed out at %d",
+					QueueDir, MaxQueueRun);
+			continue;
+		}
+		if (wn >= WorkListSize)
+		{
+			extern void grow_wlist __P((void));
+
+			grow_wlist();
+			if (wn >= WorkListSize)
+				continue;
+		}
+
+		cf = fopen(d->d_name, "r");
+		if (cf == NULL)
+		{
+			/* this may be some random person sending hir msgs */
+			/* syserr("orderq: cannot open %s", cbuf); */
+			if (tTd(41, 2))
+				printf("orderq: cannot open %s: %s\n",
+					d->d_name, errstring(errno));
+			errno = 0;
+			wn--;
+			continue;
+		}
+		w = &WorkList[wn];
+		w->w_name = newstr(d->d_name);
+		w->w_host = NULL;
+		w->w_lock = !lockfile(fileno(cf), w->w_name, NULL, LOCK_SH|LOCK_NB);
+		w->w_tooyoung = FALSE;
+
+		/* make sure jobs in creation don't clog queue */
+		w->w_pri = 0x7fffffff;
+		w->w_ctime = 0;
+
+		/* extract useful information */
+		i = NEED_P | NEED_T;
+		if (QueueLimitSender != NULL)
+			i |= NEED_S;
+		if (QueueSortOrder == QS_BYHOST || QueueLimitRecipient != NULL)
+			i |= NEED_R;
+		while (i != 0 && fgets(lbuf, sizeof lbuf, cf) != NULL)
+		{
+			int qfver = 0;
+			char *p;
+			int c;
+			extern bool strcontainedin();
+
+			p = strchr(lbuf, '\n');
+			if (p != NULL)
+				*p = '\0';
+			else
+			{
+				/* flush rest of overly long line */
+				while ((c = getc(cf)) != EOF && c != '\n')
+					continue;
+			}
+
+			switch (lbuf[0])
+			{
+			  case 'V':
+				qfver = atoi(&lbuf[1]);
+				break;
+
+			  case 'P':
+				w->w_pri = atol(&lbuf[1]);
+				i &= ~NEED_P;
+				break;
+
+			  case 'T':
+				w->w_ctime = atol(&lbuf[1]);
+				i &= ~NEED_T;
+				break;
+
+			  case 'R':
+				if (w->w_host == NULL &&
+				    (p = strrchr(&lbuf[1], '@')) != NULL)
+					w->w_host = newstr(&p[1]);
+				if (QueueLimitRecipient == NULL)
+				{
+					i &= ~NEED_R;
+					break;
+				}
+				if (qfver > 0)
+				{
+					p = strchr(&lbuf[1], ':');
+					if (p == NULL)
+						p = &lbuf[1];
+				}
+				else
+					p = &lbuf[1];
+				if (strcontainedin(QueueLimitRecipient, p))
+					i &= ~NEED_R;
+				break;
+
+			  case 'S':
+				if (QueueLimitSender != NULL &&
+				    strcontainedin(QueueLimitSender, &lbuf[1]))
+					i &= ~NEED_S;
+				break;
+
+			  case 'K':
+				if ((curtime() - (time_t) atol(&lbuf[1])) < MinQueueAge)
+					w->w_tooyoung = TRUE;
+				break;
+
+			  case 'N':
+				if (atol(&lbuf[1]) == 0)
+					w->w_tooyoung = FALSE;
+				break;
+			}
+		}
+		(void) fclose(cf);
+
+		if ((!doall && shouldqueue(w->w_pri, w->w_ctime)) ||
+		    bitset(NEED_R|NEED_S, i))
+		{
+			/* don't even bother sorting this job in */
+			if (tTd(41, 49))
+				printf("skipping %s (%x)\n", w->w_name, i);
+			free(w->w_name);
+			if (w->w_host)
+				free(w->w_host);
+			wn--;
+		}
+	}
+	(void) closedir(f);
+	wn++;
+
+	wc = min(wn, WorkListSize);
+	if (wc > MaxQueueRun && MaxQueueRun > 0)
+		wc = MaxQueueRun;
+
+	if (QueueSortOrder == QS_BYHOST)
+	{
+		extern workcmpf1();
+		extern workcmpf2();
+
+		/*
+		**  Sort the work directory for the first time,
+		**  based on host name, lock status, and priority.
+		*/
+
+		qsort((char *) WorkList, wc, sizeof *WorkList, workcmpf1);
+
+		/*
+		**  If one message to host is locked, "lock" all messages
+		**  to that host.
+		*/
+
+		i = 0;
+		while (i < wc)
+		{
+			if (!WorkList[i].w_lock)
+			{
+				i++;
+				continue;
+			}
+			w = &WorkList[i];
+			while (++i < wc)
+			{
+				if (WorkList[i].w_host == NULL &&
+				    w->w_host == NULL)
+					WorkList[i].w_lock = TRUE;
+				else if (WorkList[i].w_host != NULL &&
+					 w->w_host != NULL &&
+					 strcmp(WorkList[i].w_host, w->w_host) == 0)
+					WorkList[i].w_lock = TRUE;
+				else
+					break;
+			}
+		}
+
+		/*
+		**  Sort the work directory for the second time,
+		**  based on lock status, host name, and priority.
+		*/
+
+		qsort((char *) WorkList, wc, sizeof *WorkList, workcmpf2);
+	}
+	else if (QueueSortOrder == QS_BYTIME)
+	{
+		extern workcmpf3();
+
+		/*
+		**  Simple sort based on submission time only.
+		*/
+
+		qsort((char *) WorkList, wc, sizeof *WorkList, workcmpf3);
+	}
+	else
+	{
+		extern workcmpf0();
+
+		/*
+		**  Simple sort based on queue priority only.
+		*/
+
+		qsort((char *) WorkList, wc, sizeof *WorkList, workcmpf0);
+	}
+
+	/*
+	**  Convert the work list into canonical form.
+	**	Should be turning it into a list of envelopes here perhaps.
+	*/
+
+	WorkQ = NULL;
+	for (i = wc; --i >= 0; )
+	{
+		w = (WORK *) xalloc(sizeof *w);
+		w->w_name = WorkList[i].w_name;
+		w->w_host = WorkList[i].w_host;
+		w->w_lock = WorkList[i].w_lock;
+		w->w_tooyoung = WorkList[i].w_tooyoung;
+		w->w_pri = WorkList[i].w_pri;
+		w->w_ctime = WorkList[i].w_ctime;
+		w->w_next = WorkQ;
+		WorkQ = w;
+	}
+	if (WorkList != NULL)
+		free(WorkList);
+	WorkList = NULL;
+
+	if (tTd(40, 1))
+	{
+		for (w = WorkQ; w != NULL; w = w->w_next)
+			printf("%32s: pri=%ld\n", w->w_name, w->w_pri);
+	}
+
+	return (wn);
+}
+/*
+**  GROW_WLIST -- make the work list larger
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Adds another QUEUESEGSIZE entries to WorkList if possible.
+**		It can fail if there isn't enough memory, so WorkListSize
+**		should be checked again upon return.
+*/
+
+void
+grow_wlist()
+{
+	if (tTd(41, 1))
+		printf("grow_wlist: WorkListSize=%d\n", WorkListSize);
+	if (WorkList == NULL)
+	{
+		WorkList = (WORK *) xalloc(sizeof(WORK) * (QUEUESEGSIZE + 1));
+		WorkListSize = QUEUESEGSIZE;
+	}
+	else
+	{
+		int newsize = WorkListSize + QUEUESEGSIZE;
+		WORK *newlist = (WORK *) realloc((char *)WorkList,
+					  (unsigned)sizeof(WORK) * (newsize + 1));
+
+		if (newlist != NULL)
+		{
+			WorkListSize = newsize;
+			WorkList = newlist;
+			if (LogLevel > 1)
+			{
+				sm_syslog(LOG_NOTICE, NOQID,
+					"grew WorkList for %s to %d",
+					QueueDir, WorkListSize);
+			}
+		}
+		else if (LogLevel > 0)
+		{
+			sm_syslog(LOG_ALERT, NOQID,
+				"FAILED to grow WorkList for %s to %d",
+				QueueDir, newsize);
+		}
+	}
+	if (tTd(41, 1))
+		printf("grow_wlist: WorkListSize now %d\n", WorkListSize);
+}
+/*
+**  WORKCMPF0 -- simple priority-only compare function.
+**
+**	Parameters:
+**		a -- the first argument.
+**		b -- the second argument.
+**
+**	Returns:
+**		-1 if a < b
+**		 0 if a == b
+**		+1 if a > b
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+workcmpf0(a, b)
+	register WORK *a;
+	register WORK *b;
+{
+	long pa = a->w_pri;
+	long pb = b->w_pri;
+
+	if (pa == pb)
+		return 0;
+	else if (pa > pb)
+		return 1;
+	else
+		return -1;
+}
+/*
+**  WORKCMPF1 -- first compare function for ordering work based on host name.
+**
+**	Sorts on host name, lock status, and priority in that order.
+**
+**	Parameters:
+**		a -- the first argument.
+**		b -- the second argument.
+**
+**	Returns:
+**		<0 if a < b
+**		 0 if a == b
+**		>0 if a > b
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+workcmpf1(a, b)
+	register WORK *a;
+	register WORK *b;
+{
+	int i;
+
+	/* host name */
+	if (a->w_host != NULL && b->w_host == NULL)
+		return 1;
+	else if (a->w_host == NULL && b->w_host != NULL)
+		return -1;
+	if (a->w_host != NULL && b->w_host != NULL &&
+	    (i = strcmp(a->w_host, b->w_host)))
+		return i;
+
+	/* lock status */
+	if (a->w_lock != b->w_lock)
+		return b->w_lock - a->w_lock;
+
+	/* job priority */
+	return a->w_pri - b->w_pri;
+}
+/*
+**  WORKCMPF2 -- second compare function for ordering work based on host name.
+**
+**	Sorts on lock status, host name, and priority in that order.
+**
+**	Parameters:
+**		a -- the first argument.
+**		b -- the second argument.
+**
+**	Returns:
+**		<0 if a < b
+**		 0 if a == b
+**		>0 if a > b
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+workcmpf2(a, b)
+	register WORK *a;
+	register WORK *b;
+{
+	int i;
+
+	/* lock status */
+	if (a->w_lock != b->w_lock)
+		return a->w_lock - b->w_lock;
+
+	/* host name */
+	if (a->w_host != NULL && b->w_host == NULL)
+		return 1;
+	else if (a->w_host == NULL && b->w_host != NULL)
+		return -1;
+	if (a->w_host != NULL && b->w_host != NULL &&
+	    (i = strcmp(a->w_host, b->w_host)))
+		return i;
+
+	/* job priority */
+	return a->w_pri - b->w_pri;
+}
+/*
+**  WORKCMPF3 -- simple submission-time-only compare function.
+**
+**	Parameters:
+**		a -- the first argument.
+**		b -- the second argument.
+**
+**	Returns:
+**		-1 if a < b
+**		 0 if a == b
+**		+1 if a > b
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+workcmpf3(a, b)
+	register WORK *a;
+	register WORK *b;
+{
+	if (a->w_ctime > b->w_ctime)
+		return 1;
+	else if (a->w_ctime < b->w_ctime)
+		return -1;
+	else
+		return 0;
+}
+/*
+**  DOWORK -- do a work request.
+**
+**	Parameters:
+**		id -- the ID of the job to run.
+**		forkflag -- if set, run this in background.
+**		requeueflag -- if set, reinstantiate the queue quickly.
+**			This is used when expanding aliases in the queue.
+**			If forkflag is also set, it doesn't wait for the
+**			child.
+**		e - the envelope in which to run it.
+**
+**	Returns:
+**		process id of process that is running the queue job.
+**
+**	Side Effects:
+**		The work request is satisfied if possible.
+*/
+
+pid_t
+dowork(id, forkflag, requeueflag, e)
+	char *id;
+	bool forkflag;
+	bool requeueflag;
+	register ENVELOPE *e;
+{
+	register pid_t pid;
+	extern bool readqf();
+
+	if (tTd(40, 1))
+		printf("dowork(%s)\n", id);
+
+	/*
+	**  Fork for work.
+	*/
+
+	if (forkflag)
+	{
+		pid = fork();
+		if (pid < 0)
+		{
+			syserr("dowork: cannot fork");
+			return 0;
+		}
+		else if (pid > 0)
+		{
+			/* parent -- clean out connection cache */
+			mci_flush(FALSE, NULL);
+		}
+		else
+		{
+			/* child -- error messages to the transcript */
+			QuickAbort = OnlyOneError = FALSE;
+		}
+	}
+	else
+	{
+		pid = 0;
+	}
+
+	if (pid == 0)
+	{
+		/*
+		**  CHILD
+		**	Lock the control file to avoid duplicate deliveries.
+		**		Then run the file as though we had just read it.
+		**	We save an idea of the temporary name so we
+		**		can recover on interrupt.
+		*/
+
+		/* set basic modes, etc. */
+		(void) alarm(0);
+		clearenvelope(e, FALSE);
+		e->e_flags |= EF_QUEUERUN|EF_GLOBALERRS;
+		e->e_sendmode = SM_DELIVER;
+		e->e_errormode = EM_MAIL;
+		e->e_id = id;
+		GrabTo = UseErrorsTo = FALSE;
+		ExitStat = EX_OK;
+		if (forkflag)
+		{
+			disconnect(1, e);
+			OpMode = MD_DELIVER;
+		}
+		setproctitle("%s: from queue", id);
+		if (LogLevel > 76)
+			sm_syslog(LOG_DEBUG, e->e_id,
+				"dowork, pid=%d",
+				getpid());
+
+		/* don't use the headers from sendmail.cf... */
+		e->e_header = NULL;
+
+		/* read the queue control file -- return if locked */
+		if (!readqf(e))
+		{
+			if (tTd(40, 4))
+				printf("readqf(%s) failed\n", e->e_id);
+			e->e_id = NULL;
+			if (forkflag)
+				exit(EX_OK);
+			else
+				return 0;
+		}
+
+		e->e_flags |= EF_INQUEUE;
+		eatheader(e, requeueflag);
+
+		if (requeueflag)
+			queueup(e, FALSE);
+
+		/* do the delivery */
+		sendall(e, SM_DELIVER);
+
+		/* finish up and exit */
+		if (forkflag)
+			finis();
+		else
+			dropenvelope(e, TRUE);
+	}
+	e->e_id = NULL;
+	return pid;
+}
+/*
+**  READQF -- read queue file and set up environment.
+**
+**	Parameters:
+**		e -- the envelope of the job to run.
+**
+**	Returns:
+**		TRUE if it successfully read the queue file.
+**		FALSE otherwise.
+**
+**	Side Effects:
+**		The queue file is returned locked.
+*/
+
+bool
+readqf(e)
+	register ENVELOPE *e;
+{
+	register FILE *qfp;
+	ADDRESS *ctladdr;
+	struct stat st;
+	char *bp;
+	int qfver = 0;
+	long hdrsize = 0;
+	register char *p;
+	char *orcpt = NULL;
+	bool nomore = FALSE;
+	char qf[MAXQFNAME];
+	char buf[MAXLINE];
+	extern ADDRESS *setctluser __P((char *, int));
+
+	/*
+	**  Read and process the file.
+	*/
+
+	strcpy(qf, queuename(e, 'q'));
+	qfp = fopen(qf, "r+");
+	if (qfp == NULL)
+	{
+		if (tTd(40, 8))
+			printf("readqf(%s): fopen failure (%s)\n",
+				qf, errstring(errno));
+		if (errno != ENOENT)
+			syserr("readqf: no control file %s", qf);
+		return FALSE;
+	}
+
+	if (!lockfile(fileno(qfp), qf, NULL, LOCK_EX|LOCK_NB))
+	{
+		/* being processed by another queuer */
+		if (Verbose || tTd(40, 8))
+			printf("%s: locked\n", e->e_id);
+		if (LogLevel > 19)
+			sm_syslog(LOG_DEBUG, e->e_id, "locked");
+		(void) fclose(qfp);
+		return FALSE;
+	}
+
+	/*
+	**  Check the queue file for plausibility to avoid attacks.
+	*/
+
+	if (fstat(fileno(qfp), &st) < 0)
+	{
+		/* must have been being processed by someone else */
+		if (tTd(40, 8))
+			printf("readqf(%s): fstat failure (%s)\n",
+				qf, errstring(errno));
+		fclose(qfp);
+		return FALSE;
+	}
+
+	if ((st.st_uid != geteuid() && geteuid() != RealUid) ||
+	    bitset(S_IWOTH|S_IWGRP, st.st_mode))
+	{
+		if (LogLevel > 0)
+		{
+			sm_syslog(LOG_ALERT, e->e_id,
+				"bogus queue file, uid=%d, mode=%o",
+				st.st_uid, st.st_mode);
+		}
+		if (tTd(40, 8))
+			printf("readqf(%s): bogus file\n", qf);
+		loseqfile(e, "bogus file uid in mqueue");
+		fclose(qfp);
+		return FALSE;
+	}
+
+	if (st.st_size == 0)
+	{
+		/* must be a bogus file -- if also old, just remove it */
+		if (st.st_ctime + 10 * 60 < curtime())
+		{
+			qf[0] = 'd';
+			(void) unlink(qf);
+			qf[0] = 'q';
+			(void) unlink(qf);
+		}
+		fclose(qfp);
+		return FALSE;
+	}
+
+	if (st.st_nlink == 0)
+	{
+		/*
+		**  Race condition -- we got a file just as it was being
+		**  unlinked.  Just assume it is zero length.
+		*/
+
+		fclose(qfp);
+		return FALSE;
+	}
+
+	/* good file -- save this lock */
+	e->e_lockfp = qfp;
+
+	/* do basic system initialization */
+	initsys(e);
+	define('i', e->e_id, e);
+
+	LineNumber = 0;
+	e->e_flags |= EF_GLOBALERRS;
+	OpMode = MD_DELIVER;
+	ctladdr = NULL;
+	e->e_dfino = -1;
+	e->e_msgsize = -1;
+	while ((bp = fgetfolded(buf, sizeof buf, qfp)) != NULL)
+	{
+		register char *p;
+		u_long qflags;
+		ADDRESS *q;
+		int mid;
+		auto char *ep;
+
+		if (tTd(40, 4))
+			printf("+++++ %s\n", bp);
+		if (nomore)
+		{
+			/* hack attack */
+			syserr("SECURITY ALERT: extra data in qf: %s", bp);
+			fclose(qfp);
+			loseqfile(e, "bogus queue line");
+			return FALSE;
+		}
+		switch (bp[0])
+		{
+		  case 'V':		/* queue file version number */
+			qfver = atoi(&bp[1]);
+			if (qfver <= QF_VERSION)
+				break;
+			syserr("Version number in qf (%d) greater than max (%d)",
+				qfver, QF_VERSION);
+			fclose(qfp);
+			loseqfile(e, "unsupported qf file version");
+			return FALSE;
+
+		  case 'C':		/* specify controlling user */
+			ctladdr = setctluser(&bp[1], qfver);
+			break;
+
+		  case 'Q':		/* original recipient */
+			orcpt = newstr(&bp[1]);
+			break;
+
+		  case 'R':		/* specify recipient */
+			p = bp;
+			qflags = 0;
+			if (qfver >= 1)
+			{
+				/* get flag bits */
+				while (*++p != '\0' && *p != ':')
+				{
+					switch (*p)
+					{
+					  case 'N':
+						qflags |= QHASNOTIFY;
+						break;
+
+					  case 'S':
+						qflags |= QPINGONSUCCESS;
+						break;
+
+					  case 'F':
+						qflags |= QPINGONFAILURE;
+						break;
+
+					  case 'D':
+						qflags |= QPINGONDELAY;
+						break;
+
+					  case 'P':
+						qflags |= QPRIMARY;
+						break;
+					}
+				}
+			}
+			else
+				qflags |= QPRIMARY;
+			q = parseaddr(++p, NULLADDR, RF_COPYALL, '\0', NULL, e);
+			if (q != NULL)
+			{
+				q->q_alias = ctladdr;
+				if (qfver >= 1)
+					q->q_flags &= ~Q_PINGFLAGS;
+				q->q_flags |= qflags;
+				q->q_orcpt = orcpt;
+				(void) recipient(q, &e->e_sendqueue, 0, e);
+			}
+			orcpt = NULL;
+			break;
+
+		  case 'E':		/* specify error recipient */
+			/* no longer used */
+			break;
+
+		  case 'H':		/* header */
+			(void) chompheader(&bp[1], FALSE, NULL, e);
+			hdrsize += strlen(&bp[1]);
+			break;
+
+		  case 'L':		/* Solaris Content-Length: */
+		  case 'M':		/* message */
+			/* ignore this; we want a new message next time */
+			break;
+
+		  case 'S':		/* sender */
+			setsender(newstr(&bp[1]), e, NULL, '\0', TRUE);
+			break;
+
+		  case 'B':		/* body type */
+			e->e_bodytype = newstr(&bp[1]);
+			break;
+
+#if _FFR_SAVE_CHARSET
+		  case 'X':		/* character set */
+			e->e_charset = newstr(&bp[1]);
+			break;
+#endif
+
+		  case 'D':		/* data file name */
+			/* obsolete -- ignore */
+			break;
+
+		  case 'T':		/* init time */
+			e->e_ctime = atol(&bp[1]);
+			break;
+
+		  case 'I':		/* data file's inode number */
+			/* regenerated below */
+			break;
+
+		  case 'K':		/* time of last deliver attempt */
+			e->e_dtime = atol(&buf[1]);
+			break;
+
+		  case 'N':		/* number of delivery attempts */
+			e->e_ntries = atoi(&buf[1]);
+
+			/* if this has been tried recently, let it be */
+			if (e->e_ntries > 0 &&
+			    curtime() < e->e_dtime + MinQueueAge)
+			{
+				char *howlong = pintvl(curtime() - e->e_dtime, TRUE);
+				extern void unlockqueue();
+
+				if (Verbose || tTd(40, 8))
+					printf("%s: too young (%s)\n",
+						e->e_id, howlong);
+				if (LogLevel > 19)
+					sm_syslog(LOG_DEBUG, e->e_id,
+						"too young (%s)",
+						howlong);
+				e->e_id = NULL;
+				unlockqueue(e);
+				return FALSE;
+			}
+			break;
+
+		  case 'P':		/* message priority */
+			e->e_msgpriority = atol(&bp[1]) + WkTimeFact;
+			break;
+
+		  case 'F':		/* flag bits */
+			if (strncmp(bp, "From ", 5) == 0)
+			{
+				/* we are being spoofed! */
+				syserr("SECURITY ALERT: bogus qf line %s", bp);
+				fclose(qfp);
+				loseqfile(e, "bogus queue line");
+				return FALSE;
+			}
+			for (p = &bp[1]; *p != '\0'; p++)
+			{
+				switch (*p)
+				{
+				  case 'w':	/* warning sent */
+					e->e_flags |= EF_WARNING;
+					break;
+
+				  case 'r':	/* response */
+					e->e_flags |= EF_RESPONSE;
+					break;
+
+				  case '8':	/* has 8 bit data */
+					e->e_flags |= EF_HAS8BIT;
+					break;
+
+				  case 'b':	/* delete Bcc: header */
+					e->e_flags |= EF_DELETE_BCC;
+					break;
+
+				  case 'd':	/* envelope has DSN RET= */
+					e->e_flags |= EF_RET_PARAM;
+					break;
+
+				  case 'n':	/* don't return body */
+					e->e_flags |= EF_NO_BODY_RETN;
+					break;
+				}
+			}
+			break;
+
+		  case 'Z':		/* original envelope id from ESMTP */
+			e->e_envid = newstr(&bp[1]);
+			break;
+
+		  case '$':		/* define macro */
+			mid = macid(&bp[1], &ep);
+			define(mid, newstr(ep), e);
+			break;
+
+		  case '.':		/* terminate file */
+			nomore = TRUE;
+			break;
+
+		  default:
+			syserr("readqf: %s: line %d: bad line \"%s\"",
+				qf, LineNumber, shortenstring(bp, 203));
+			fclose(qfp);
+			loseqfile(e, "unrecognized line");
+			return FALSE;
+		}
+
+		if (bp != buf)
+			free(bp);
+	}
+
+	/*
+	**  If we haven't read any lines, this queue file is empty.
+	**  Arrange to remove it without referencing any null pointers.
+	*/
+
+	if (LineNumber == 0)
+	{
+		errno = 0;
+		e->e_flags |= EF_CLRQUEUE | EF_FATALERRS | EF_RESPONSE;
+		return TRUE;
+	}
+
+	/*
+	**  Arrange to read the data file.
+	*/
+
+	p = queuename(e, 'd');
+	e->e_dfp = fopen(p, "r");
+	if (e->e_dfp == NULL)
+	{
+		syserr("readqf: cannot open %s", p);
+	}
+	else
+	{
+		e->e_flags |= EF_HAS_DF;
+		if (fstat(fileno(e->e_dfp), &st) >= 0)
+		{
+			e->e_msgsize = st.st_size + hdrsize;
+			e->e_dfdev = st.st_dev;
+			e->e_dfino = st.st_ino;
+		}
+	}
+
+	return TRUE;
+}
+/*
+**  PRINTQUEUE -- print out a representation of the mail queue
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Prints a listing of the mail queue on the standard output.
+*/
+
+void
+printqueue()
+{
+	register WORK *w;
+	FILE *f;
+	int nrequests;
+	char buf[MAXLINE];
+
+	/*
+	**  Check for permission to print the queue
+	*/
+
+	if (bitset(PRIV_RESTRICTMAILQ, PrivacyFlags) && RealUid != 0)
+	{
+		struct stat st;
+# ifdef NGROUPS_MAX
+		int n;
+		extern GIDSET_T InitialGidSet[NGROUPS_MAX];
+# endif
+
+		if (stat(QueueDir, &st) < 0)
+		{
+			syserr("Cannot stat %s", QueueDir);
+			return;
+		}
+# ifdef NGROUPS_MAX
+		n = NGROUPS_MAX;
+		while (--n >= 0)
+		{
+			if (InitialGidSet[n] == st.st_gid)
+				break;
+		}
+		if (n < 0 && RealGid != st.st_gid)
+# else
+		if (RealGid != st.st_gid)
+# endif
+		{
+			usrerr("510 You are not permitted to see the queue");
+			setstat(EX_NOPERM);
+			return;
+		}
+	}
+
+	/*
+	**  Read and order the queue.
+	*/
+
+	nrequests = orderq(TRUE);
+
+	/*
+	**  Print the work list that we have read.
+	*/
+
+	/* first see if there is anything */
+	if (nrequests <= 0)
+	{
+		printf("Mail queue is empty\n");
+		return;
+	}
+
+	CurrentLA = getla();	/* get load average */
+
+	printf("\t\tMail Queue (%d request%s", nrequests, nrequests == 1 ? "" : "s");
+	if (MaxQueueRun > 0 && nrequests > MaxQueueRun)
+		printf(", only %d printed", MaxQueueRun);
+	if (Verbose)
+		printf(")\n--Q-ID-- --Size-- -Priority- ---Q-Time--- -----------Sender/Recipient-----------\n");
+	else
+		printf(")\n--Q-ID-- --Size-- -----Q-Time----- ------------Sender/Recipient------------\n");
+	for (w = WorkQ; w != NULL; w = w->w_next)
+	{
+		struct stat st;
+		auto time_t submittime = 0;
+		long dfsize;
+		int flags = 0;
+		int qfver;
+		char statmsg[MAXLINE];
+		char bodytype[MAXNAME + 1];
+
+		printf("%8s", w->w_name + 2);
+		f = fopen(w->w_name, "r");
+		if (f == NULL)
+		{
+			printf(" (job completed)\n");
+			errno = 0;
+			continue;
+		}
+		w->w_name[0] = 'd';
+		if (stat(w->w_name, &st) >= 0)
+			dfsize = st.st_size;
+		else
+			dfsize = -1;
+		if (w->w_lock)
+			printf("*");
+		else if (w->w_tooyoung)
+			printf("-");
+		else if (shouldqueue(w->w_pri, w->w_ctime))
+			printf("X");
+		else
+			printf(" ");
+		errno = 0;
+
+		statmsg[0] = bodytype[0] = '\0';
+		qfver = 0;
+		while (fgets(buf, sizeof buf, f) != NULL)
+		{
+			register int i;
+			register char *p;
+
+			fixcrlf(buf, TRUE);
+			switch (buf[0])
+			{
+			  case 'V':	/* queue file version */
+				qfver = atoi(&buf[1]);
+				break;
+
+			  case 'M':	/* error message */
+				if ((i = strlen(&buf[1])) >= sizeof statmsg)
+					i = sizeof statmsg - 1;
+				bcopy(&buf[1], statmsg, i);
+				statmsg[i] = '\0';
+				break;
+
+			  case 'B':	/* body type */
+				if ((i = strlen(&buf[1])) >= sizeof bodytype)
+					i = sizeof bodytype - 1;
+				bcopy(&buf[1], bodytype, i);
+				bodytype[i] = '\0';
+				break;
+
+			  case 'S':	/* sender name */
+				if (Verbose)
+					printf("%8ld %10ld%c%.12s %.78s",
+					    dfsize,
+					    w->w_pri,
+					    bitset(EF_WARNING, flags) ? '+' : ' ',
+					    ctime(&submittime) + 4,
+					    &buf[1]);
+				else
+					printf("%8ld %.16s %.45s", dfsize,
+					    ctime(&submittime), &buf[1]);
+				if (statmsg[0] != '\0' || bodytype[0] != '\0')
+				{
+					printf("\n    %10.10s", bodytype);
+					if (statmsg[0] != '\0')
+						printf("   (%.*s)",
+							Verbose ? 100 : 60,
+							statmsg);
+				}
+				break;
+
+			  case 'C':	/* controlling user */
+				if (Verbose)
+					printf("\n\t\t\t\t      (---%.74s---)",
+						&buf[1]);
+				break;
+
+			  case 'R':	/* recipient name */
+				p = &buf[1];
+				if (qfver >= 1)
+				{
+					p = strchr(p, ':');
+					if (p == NULL)
+						break;
+					p++;
+				}
+				if (Verbose)
+					printf("\n\t\t\t\t\t  %.78s", p);
+				else
+					printf("\n\t\t\t\t   %.45s", p);
+				break;
+
+			  case 'T':	/* creation time */
+				submittime = atol(&buf[1]);
+				break;
+
+			  case 'F':	/* flag bits */
+				for (p = &buf[1]; *p != '\0'; p++)
+				{
+					switch (*p)
+					{
+					  case 'w':
+						flags |= EF_WARNING;
+						break;
+					}
+				}
+			}
+		}
+		if (submittime == (time_t) 0)
+			printf(" (no control file)");
+		printf("\n");
+		(void) fclose(f);
+	}
+}
+
+# endif /* QUEUE */
+/*
+**  QUEUENAME -- build a file name in the queue directory for this envelope.
+**
+**	Assigns an id code if one does not already exist.
+**	This code is very careful to avoid trashing existing files
+**	under any circumstances.
+**
+**	Parameters:
+**		e -- envelope to build it in/from.
+**		type -- the file type, used as the first character
+**			of the file name.
+**
+**	Returns:
+**		a pointer to the new file name (in a static buffer).
+**
+**	Side Effects:
+**		If no id code is already assigned, queuename will
+**		assign an id code, create a qf file, and leave a
+**		locked, open-for-write file pointer in the envelope.
+*/
+
+char *
+queuename(e, type)
+	register ENVELOPE *e;
+	int type;
+{
+	static pid_t pid = -1;
+	static char c0;
+	static char c1;
+	static char c2;
+	time_t now;
+	struct tm *tm;
+	static char buf[MAXNAME + 1];
+
+	if (e->e_id == NULL)
+	{
+		char qf[MAXQFNAME];
+
+		/* find a unique id */
+		if (pid != getpid())
+		{
+			/* new process -- start back at "AA" */
+			pid = getpid();
+			now = curtime();
+			tm = localtime(&now);
+			c0 = 'A' + tm->tm_hour;
+			c1 = 'A';
+			c2 = 'A' - 1;
+		}
+		(void) snprintf(qf, sizeof qf, "qf%cAA%05d", c0, pid);
+
+		while (c1 < '~' || c2 < 'Z')
+		{
+			int i;
+
+			if (c2 >= 'Z')
+			{
+				c1++;
+				c2 = 'A' - 1;
+			}
+			qf[3] = c1;
+			qf[4] = ++c2;
+			if (tTd(7, 20))
+				printf("queuename: trying \"%s\"\n", qf);
+
+			i = open(qf, O_WRONLY|O_CREAT|O_EXCL, FileMode);
+			if (i < 0)
+			{
+				if (errno == EEXIST)
+					continue;
+				syserr("queuename: Cannot create \"%s\" in \"%s\" (euid=%d)",
+					qf, QueueDir, geteuid());
+				exit(EX_UNAVAILABLE);
+			}
+			if (lockfile(i, qf, NULL, LOCK_EX|LOCK_NB))
+			{
+				e->e_lockfp = fdopen(i, "w");
+				break;
+			}
+
+			/* a reader got the file; abandon it and try again */
+			(void) close(i);
+		}
+		if (c1 >= '~' && c2 >= 'Z')
+		{
+			syserr("queuename: Cannot create \"%s\" in \"%s\" (euid=%d)",
+				qf, QueueDir, geteuid());
+			exit(EX_OSERR);
+		}
+		e->e_id = newstr(&qf[2]);
+		define('i', e->e_id, e);
+		if (tTd(7, 1))
+			printf("queuename: assigned id %s, env=%lx\n",
+			       e->e_id, (u_long) e);
+		if (tTd(7, 9))
+		{
+			printf("  lockfd=");
+			dumpfd(fileno(e->e_lockfp), TRUE, FALSE);
+		}
+		if (LogLevel > 93)
+			sm_syslog(LOG_DEBUG, e->e_id, "assigned id");
+	}
+
+	if (type == '\0')
+		return (NULL);
+	(void) snprintf(buf, sizeof buf, "%cf%s", type, e->e_id);
+	if (tTd(7, 2))
+		printf("queuename: %s\n", buf);
+	return (buf);
+}
+/*
+**  UNLOCKQUEUE -- unlock the queue entry for a specified envelope
+**
+**	Parameters:
+**		e -- the envelope to unlock.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		unlocks the queue for `e'.
+*/
+
+void
+unlockqueue(e)
+	ENVELOPE *e;
+{
+	if (tTd(51, 4))
+		printf("unlockqueue(%s)\n",
+			e->e_id == NULL ? "NOQUEUE" : e->e_id);
+
+	/* if there is a lock file in the envelope, close it */
+	if (e->e_lockfp != NULL)
+		xfclose(e->e_lockfp, "unlockqueue", e->e_id);
+	e->e_lockfp = NULL;
+
+	/* don't create a queue id if we don't already have one */
+	if (e->e_id == NULL)
+		return;
+
+	/* remove the transcript */
+	if (LogLevel > 87)
+		sm_syslog(LOG_DEBUG, e->e_id, "unlock");
+	if (!tTd(51, 104))
+		xunlink(queuename(e, 'x'));
+
+}
+/*
+**  SETCTLUSER -- create a controlling address
+**
+**	Create a fake "address" given only a local login name; this is
+**	used as a "controlling user" for future recipient addresses.
+**
+**	Parameters:
+**		user -- the user name of the controlling user.
+**		qfver -- the version stamp of this qf file.
+**
+**	Returns:
+**		An address descriptor for the controlling user.
+**
+**	Side Effects:
+**		none.
+*/
+
+ADDRESS *
+setctluser(user, qfver)
+	char *user;
+	int qfver;
+{
+	register ADDRESS *a;
+	struct passwd *pw;
+	char *p;
+
+	/*
+	**  See if this clears our concept of controlling user.
+	*/
+
+	if (user == NULL || *user == '\0')
+		return NULL;
+
+	/*
+	**  Set up addr fields for controlling user.
+	*/
+
+	a = (ADDRESS *) xalloc(sizeof *a);
+	bzero((char *) a, sizeof *a);
+
+	if (*user == '\0')
+	{
+		p = NULL;
+		a->q_user = newstr(DefUser);
+	}
+	else if (*user == ':')
+	{
+		p = &user[1];
+		a->q_user = newstr(p);
+	}
+	else
+	{
+		p = strtok(user, ":");
+		a->q_user = newstr(user);
+		if (qfver >= 2)
+		{
+			if ((p = strtok(NULL, ":")) != NULL)
+				a->q_uid = atoi(p);
+			if ((p = strtok(NULL, ":")) != NULL)
+				a->q_gid = atoi(p);
+			if ((p = strtok(NULL, ":")) != NULL)
+				a->q_flags |= QGOODUID;
+		}
+		else if ((pw = sm_getpwnam(user)) != NULL)
+		{
+			if (strcmp(pw->pw_dir, "/") == 0)
+				a->q_home = "";
+			else
+				a->q_home = newstr(pw->pw_dir);
+			a->q_uid = pw->pw_uid;
+			a->q_gid = pw->pw_gid;
+			a->q_flags |= QGOODUID;
+		}
+	}
+
+	a->q_flags |= QPRIMARY;		/* flag as a "ctladdr"  */
+	a->q_mailer = LocalMailer;
+	if (p == NULL)
+		a->q_paddr = a->q_user;
+	else
+		a->q_paddr = newstr(p);
+	return a;
+}
+/*
+**  LOSEQFILE -- save the qf as Qf and try to let someone know
+**
+**	Parameters:
+**		e -- the envelope (e->e_id will be used).
+**		why -- reported to whomever can hear.
+**
+**	Returns:
+**		none.
+*/
+
+void
+loseqfile(e, why)
+	register ENVELOPE *e;
+	char *why;
+{
+	char *p;
+	char buf[MAXQFNAME + 1];
+
+	if (e == NULL || e->e_id == NULL)
+		return;
+	p = queuename(e, 'q');
+	if (strlen(p) > MAXQFNAME)
+	{
+		syserr("loseqfile: queuename (%s) too long", p);
+		return;
+	}
+	strcpy(buf, p);
+	p = queuename(e, 'Q');
+	if (rename(buf, p) < 0)
+		syserr("cannot rename(%s, %s), uid=%d", buf, p, geteuid());
+	else if (LogLevel > 0)
+		sm_syslog(LOG_ALERT, e->e_id,
+			"Losing %s: %s", buf, why);
+}
diff --git a/src/readcf.c b/src/readcf.c
new file mode 100644
index 0000000..681c3d3
--- /dev/null
+++ b/src/readcf.c
@@ -0,0 +1,2805 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)readcf.c	8.201 (Berkeley) 10/1/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+# include <grp.h>
+#if NAMED_BIND
+# include <resolv.h>
+#endif
+
+/*
+**  READCF -- read control file.
+**
+**	This routine reads the control file and builds the internal
+**	form.
+**
+**	The file is formatted as a sequence of lines, each taken
+**	atomically.  The first character of each line describes how
+**	the line is to be interpreted.  The lines are:
+**		Dxval		Define macro x to have value val.
+**		Cxword		Put word into class x.
+**		Fxfile [fmt]	Read file for lines to put into
+**				class x.  Use scanf string 'fmt'
+**				or "%s" if not present.  Fmt should
+**				only produce one string-valued result.
+**		Hname: value	Define header with field-name 'name'
+**				and value as specified; this will be
+**				macro expanded immediately before
+**				use.
+**		Sn		Use rewriting set n.
+**		Rlhs rhs	Rewrite addresses that match lhs to
+**				be rhs.
+**		Mn arg=val...	Define mailer.  n is the internal name.
+**				Args specify mailer parameters.
+**		Oxvalue		Set option x to value.
+**		Pname=value	Set precedence name to value.
+**		Vversioncode[/vendorcode]
+**				Version level/vendor name of
+**				configuration syntax.
+**		Kmapname mapclass arguments....
+**				Define keyed lookup of a given class.
+**				Arguments are class dependent.
+**		Eenvar=value	Set the environment value to the given value.
+**
+**	Parameters:
+**		cfname -- control file name.
+**		safe -- TRUE if this is the system config file;
+**			FALSE otherwise.
+**		e -- the main envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Builds several internal tables.
+*/
+
+void
+readcf(cfname, safe, e)
+	char *cfname;
+	bool safe;
+	register ENVELOPE *e;
+{
+	FILE *cf;
+	int ruleset = 0;
+	char *q;
+	struct rewrite *rwp = NULL;
+	char *bp;
+	auto char *ep;
+	int nfuzzy;
+	char *file;
+	bool optional;
+	int mid;
+	register char *p;
+	int sff = SFF_OPENASROOT;
+	struct stat statb;
+	char buf[MAXLINE];
+	char exbuf[MAXLINE];
+	char pvpbuf[MAXLINE + MAXATOM];
+	static char *null_list[1] = { NULL };
+	extern char **copyplist __P((char **, bool));
+	extern char *munchstring __P((char *, char **, int));
+	extern void fileclass __P((int, char *, char *, bool, bool));
+	extern void toomany __P((int, int));
+	extern void translate_dollars __P((char *));
+	extern void inithostmaps __P((void));
+
+	FileName = cfname;
+	LineNumber = 0;
+
+	if (DontLockReadFiles)
+		sff |= SFF_NOLOCK;
+	cf = safefopen(cfname, O_RDONLY, 0444, sff);
+	if (cf == NULL)
+	{
+		syserr("cannot open");
+		exit(EX_OSFILE);
+	}
+
+	if (fstat(fileno(cf), &statb) < 0)
+	{
+		syserr("cannot fstat");
+		exit(EX_OSFILE);
+	}
+
+	if (!S_ISREG(statb.st_mode))
+	{
+		syserr("not a plain file");
+		exit(EX_OSFILE);
+	}
+
+	if (OpMode != MD_TEST && bitset(S_IWGRP|S_IWOTH, statb.st_mode))
+	{
+		if (OpMode == MD_DAEMON || OpMode == MD_INITALIAS)
+			fprintf(stderr, "%s: WARNING: dangerous write permissions\n",
+				FileName);
+		if (LogLevel > 0)
+			sm_syslog(LOG_CRIT, NOQID,
+				"%s: WARNING: dangerous write permissions",
+				FileName);
+	}
+
+#ifdef XLA
+	xla_zero();
+#endif
+
+	while ((bp = fgetfolded(buf, sizeof buf, cf)) != NULL)
+	{
+		if (bp[0] == '#')
+		{
+			if (bp != buf)
+				free(bp);
+			continue;
+		}
+
+		/* do macro expansion mappings */
+		translate_dollars(bp);
+
+		/* interpret this line */
+		errno = 0;
+		switch (bp[0])
+		{
+		  case '\0':
+		  case '#':		/* comment */
+			break;
+
+		  case 'R':		/* rewriting rule */
+			for (p = &bp[1]; *p != '\0' && *p != '\t'; p++)
+				continue;
+
+			if (*p == '\0')
+			{
+				syserr("invalid rewrite line \"%s\" (tab expected)", bp);
+				break;
+			}
+
+			/* allocate space for the rule header */
+			if (rwp == NULL)
+			{
+				RewriteRules[ruleset] = rwp =
+					(struct rewrite *) xalloc(sizeof *rwp);
+			}
+			else
+			{
+				rwp->r_next = (struct rewrite *) xalloc(sizeof *rwp);
+				rwp = rwp->r_next;
+			}
+			rwp->r_next = NULL;
+
+			/* expand and save the LHS */
+			*p = '\0';
+			expand(&bp[1], exbuf, sizeof exbuf, e);
+			rwp->r_lhs = prescan(exbuf, '\t', pvpbuf,
+					     sizeof pvpbuf, NULL, NULL);
+			nfuzzy = 0;
+			if (rwp->r_lhs != NULL)
+			{
+				register char **ap;
+
+				rwp->r_lhs = copyplist(rwp->r_lhs, TRUE);
+
+				/* count the number of fuzzy matches in LHS */
+				for (ap = rwp->r_lhs; *ap != NULL; ap++)
+				{
+					char *botch;
+
+					botch = NULL;
+					switch (**ap & 0377)
+					{
+					  case MATCHZANY:
+					  case MATCHANY:
+					  case MATCHONE:
+					  case MATCHCLASS:
+					  case MATCHNCLASS:
+						nfuzzy++;
+						break;
+
+					  case MATCHREPL:
+						botch = "$0-$9";
+						break;
+
+					  case CANONNET:
+						botch = "$#";
+						break;
+
+					  case CANONUSER:
+						botch = "$:";
+						break;
+
+					  case CALLSUBR:
+						botch = "$>";
+						break;
+
+					  case CONDIF:
+						botch = "$?";
+						break;
+
+					  case CONDFI:
+						botch = "$.";
+						break;
+
+					  case HOSTBEGIN:
+						botch = "$[";
+						break;
+
+					  case HOSTEND:
+						botch = "$]";
+						break;
+
+					  case LOOKUPBEGIN:
+						botch = "$(";
+						break;
+
+					  case LOOKUPEND:
+						botch = "$)";
+						break;
+					}
+					if (botch != NULL)
+						syserr("Inappropriate use of %s on LHS",
+							botch);
+				}
+			}
+			else
+			{
+				syserr("R line: null LHS");
+				rwp->r_lhs = null_list;
+			}
+
+			/* expand and save the RHS */
+			while (*++p == '\t')
+				continue;
+			q = p;
+			while (*p != '\0' && *p != '\t')
+				p++;
+			*p = '\0';
+			expand(q, exbuf, sizeof exbuf, e);
+			rwp->r_rhs = prescan(exbuf, '\t', pvpbuf,
+					     sizeof pvpbuf, NULL, NULL);
+			if (rwp->r_rhs != NULL)
+			{
+				register char **ap;
+
+				rwp->r_rhs = copyplist(rwp->r_rhs, TRUE);
+
+				/* check no out-of-bounds replacements */
+				nfuzzy += '0';
+				for (ap = rwp->r_rhs; *ap != NULL; ap++)
+				{
+					char *botch;
+
+					botch = NULL;
+					switch (**ap & 0377)
+					{
+					  case MATCHREPL:
+						if ((*ap)[1] <= '0' || (*ap)[1] > nfuzzy)
+						{
+							syserr("replacement $%c out of bounds",
+								(*ap)[1]);
+						}
+						break;
+
+					  case MATCHZANY:
+						botch = "$*";
+						break;
+
+					  case MATCHANY:
+						botch = "$+";
+						break;
+
+					  case MATCHONE:
+						botch = "$-";
+						break;
+
+					  case MATCHCLASS:
+						botch = "$=";
+						break;
+
+					  case MATCHNCLASS:
+						botch = "$~";
+						break;
+					}
+					if (botch != NULL)
+						syserr("Inappropriate use of %s on RHS",
+							botch);
+				}
+			}
+			else
+			{
+				syserr("R line: null RHS");
+				rwp->r_rhs = null_list;
+			}
+			break;
+
+		  case 'S':		/* select rewriting set */
+			expand(&bp[1], exbuf, sizeof exbuf, e);
+			ruleset = strtorwset(exbuf, NULL, ST_ENTER);
+			if (ruleset < 0)
+				break;
+			rwp = RewriteRules[ruleset];
+			if (rwp != NULL)
+			{
+				if (OpMode == MD_TEST || tTd(37, 1))
+					printf("WARNING: Ruleset %s has multiple definitions\n",
+						&bp[1]);
+				while (rwp->r_next != NULL)
+					rwp = rwp->r_next;
+			}
+			break;
+
+		  case 'D':		/* macro definition */
+			mid = macid(&bp[1], &ep);
+			p = munchstring(ep, NULL, '\0');
+			define(mid, newstr(p), e);
+			break;
+
+		  case 'H':		/* required header line */
+			(void) chompheader(&bp[1], TRUE, NULL, e);
+			break;
+
+		  case 'C':		/* word class */
+		  case 'T':		/* trusted user (set class `t') */
+			if (bp[0] == 'C')
+			{
+				mid = macid(&bp[1], &ep);
+				expand(ep, exbuf, sizeof exbuf, e);
+				p = exbuf;
+			}
+			else
+			{
+				mid = 't';
+				p = &bp[1];
+			}
+			while (*p != '\0')
+			{
+				register char *wd;
+				char delim;
+
+				while (*p != '\0' && isascii(*p) && isspace(*p))
+					p++;
+				wd = p;
+				while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+					p++;
+				delim = *p;
+				*p = '\0';
+				if (wd[0] != '\0')
+					setclass(mid, wd);
+				*p = delim;
+			}
+			break;
+
+		  case 'F':		/* word class from file */
+			mid = macid(&bp[1], &ep);
+			for (p = ep; isascii(*p) && isspace(*p); )
+				p++;
+			if (p[0] == '-' && p[1] == 'o')
+			{
+				optional = TRUE;
+				while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+					p++;
+				while (isascii(*p) && isspace(*p))
+					p++;
+			}
+			else
+				optional = FALSE;
+			file = p;
+			if (*file == '|')
+				p = "%s";
+			else
+			{
+				while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+					p++;
+				if (*p == '\0')
+					p = "%s";
+				else
+				{
+					*p = '\0';
+					while (isascii(*++p) && isspace(*p))
+						continue;
+				}
+			}
+			fileclass(mid, file, p, safe, optional);
+			break;
+
+#ifdef XLA
+		  case 'L':		/* extended load average description */
+			xla_init(&bp[1]);
+			break;
+#endif
+
+#if defined(SUN_EXTENSIONS) && defined(SUN_LOOKUP_MACRO)
+		  case 'L':		/* lookup macro */
+		  case 'G':		/* lookup class */
+			/* reserved for Sun -- NIS+ database lookup */
+			if (VendorCode != VENDOR_SUN)
+				goto badline;
+			sun_lg_config_line(bp, e);
+			break;
+#endif
+
+		  case 'M':		/* define mailer */
+			makemailer(&bp[1]);
+			break;
+
+		  case 'O':		/* set option */
+			setoption(bp[1], &bp[2], safe, FALSE, e);
+			break;
+
+		  case 'P':		/* set precedence */
+			if (NumPriorities >= MAXPRIORITIES)
+			{
+				toomany('P', MAXPRIORITIES);
+				break;
+			}
+			for (p = &bp[1]; *p != '\0' && *p != '='; p++)
+				continue;
+			if (*p == '\0')
+				goto badline;
+			*p = '\0';
+			Priorities[NumPriorities].pri_name = newstr(&bp[1]);
+			Priorities[NumPriorities].pri_val = atoi(++p);
+			NumPriorities++;
+			break;
+
+		  case 'V':		/* configuration syntax version */
+			for (p = &bp[1]; isascii(*p) && isspace(*p); p++)
+				continue;
+			if (!isascii(*p) || !isdigit(*p))
+			{
+				syserr("invalid argument to V line: \"%.20s\"", 
+					&bp[1]);
+				break;
+			}
+			ConfigLevel = strtol(p, &ep, 10);
+
+			/*
+			**  Do heuristic tweaking for back compatibility.
+			*/
+
+			if (ConfigLevel >= 5)
+			{
+				/* level 5 configs have short name in $w */
+				p = macvalue('w', e);
+				if (p != NULL && (p = strchr(p, '.')) != NULL)
+					*p = '\0';
+				define('w', macvalue('w', e), e);
+			}
+			if (ConfigLevel >= 6)
+			{
+				ColonOkInAddr = FALSE;
+			}
+
+			/*
+			**  Look for vendor code.
+			*/
+
+			if (*ep++ == '/')
+			{
+				extern bool setvendor __P((char *));
+
+				/* extract vendor code */
+				for (p = ep; isascii(*p) && isalpha(*p); )
+					p++;
+				*p = '\0';
+
+				if (!setvendor(ep))
+					syserr("invalid V line vendor code: \"%s\"",
+						ep);
+			}
+			break;
+
+		  case 'K':
+			expand(&bp[1], exbuf, sizeof exbuf, e);
+			(void) makemapentry(exbuf);
+			break;
+
+		  case 'E':
+			p = strchr(bp, '=');
+			if (p != NULL)
+				*p++ = '\0';
+			setuserenv(&bp[1], p);
+			break;
+
+		  default:
+		  badline:
+			syserr("unknown control line \"%s\"", bp);
+		}
+		if (bp != buf)
+			free(bp);
+	}
+	if (ferror(cf))
+	{
+		syserr("I/O read error");
+		exit(EX_OSFILE);
+	}
+	fclose(cf);
+	FileName = NULL;
+
+	/* initialize host maps from local service tables */
+	inithostmaps();
+
+	/* determine if we need to do special name-server frotz */
+	{
+		int nmaps;
+		char *maptype[MAXMAPSTACK];
+		short mapreturn[MAXMAPACTIONS];
+
+		nmaps = switch_map_find("hosts", maptype, mapreturn);
+		UseNameServer = FALSE;
+		if (nmaps > 0 && nmaps <= MAXMAPSTACK)
+		{
+			register int mapno;
+
+			for (mapno = 0; mapno < nmaps && !UseNameServer; mapno++)
+			{
+				if (strcmp(maptype[mapno], "dns") == 0)
+					UseNameServer = TRUE;
+			}
+		}
+
+#ifdef HESIOD
+		nmaps = switch_map_find("passwd", maptype, mapreturn);
+		UseHesiod = FALSE;
+		if (nmaps > 0 && nmaps <= MAXMAPSTACK)
+		{
+			register int mapno;
+
+			for (mapno = 0; mapno < nmaps && !UseHesiod; mapno++)
+			{
+				if (strcmp(maptype[mapno], "hesiod") == 0)
+					UseHesiod = TRUE;
+			}
+		}
+#endif
+	}
+}
+/*
+**  TRANSLATE_DOLLARS -- convert $x into internal form
+**
+**	Actually does all appropriate pre-processing of a config line
+**	to turn it into internal form.
+**
+**	Parameters:
+**		bp -- the buffer to translate.
+**
+**	Returns:
+**		None.  The buffer is translated in place.  Since the
+**		translations always make the buffer shorter, this is
+**		safe without a size parameter.
+*/
+
+void
+translate_dollars(bp)
+	char *bp;
+{
+	register char *p;
+	auto char *ep;
+
+	for (p = bp; *p != '\0'; p++)
+	{
+		if (*p == '#' && p > bp && ConfigLevel >= 3)
+		{
+			/* this is an on-line comment */
+			register char *e;
+
+			switch (*--p & 0377)
+			{
+			  case MACROEXPAND:
+				/* it's from $# -- let it go through */
+				p++;
+				break;
+
+			  case '\\':
+				/* it's backslash escaped */
+				(void) strcpy(p, p + 1);
+				break;
+
+			  default:
+				/* delete preceeding white space */
+				while (isascii(*p) && isspace(*p) &&
+				       *p != '\n' && p > bp)
+					p--;
+				if ((e = strchr(++p, '\n')) != NULL)
+					(void) strcpy(p, e);
+				else
+					*p-- = '\0';
+				break;
+			}
+			continue;
+		}
+
+		if (*p != '$' || p[1] == '\0')
+			continue;
+
+		if (p[1] == '$')
+		{
+			/* actual dollar sign.... */
+			(void) strcpy(p, p + 1);
+			continue;
+		}
+
+		/* convert to macro expansion character */
+		*p++ = MACROEXPAND;
+
+		/* special handling for $=, $~, $&, and $? */
+		if (*p == '=' || *p == '~' || *p == '&' || *p == '?')
+			p++;
+
+		/* convert macro name to code */
+		*p = macid(p, &ep);
+		if (ep != p)
+			strcpy(p + 1, ep);
+	}
+
+	/* strip trailing white space from the line */
+	while (--p > bp && isascii(*p) && isspace(*p))
+		*p = '\0';
+}
+/*
+**  TOOMANY -- signal too many of some option
+**
+**	Parameters:
+**		id -- the id of the error line
+**		maxcnt -- the maximum possible values
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		gives a syserr.
+*/
+
+void
+toomany(id, maxcnt)
+	int id;
+	int maxcnt;
+{
+	syserr("too many %c lines, %d max", id, maxcnt);
+}
+/*
+**  FILECLASS -- read members of a class from a file
+**
+**	Parameters:
+**		class -- class to define.
+**		filename -- name of file to read.
+**		fmt -- scanf string to use for match.
+**		safe -- if set, this is a safe read.
+**		optional -- if set, it is not an error for the file to
+**			not exist.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**
+**		puts all lines in filename that match a scanf into
+**			the named class.
+*/
+
+void
+fileclass(class, filename, fmt, safe, optional)
+	int class;
+	char *filename;
+	char *fmt;
+	bool safe;
+	bool optional;
+{
+	FILE *f;
+	int sff;
+	pid_t pid;
+	register char *p;
+	char buf[MAXLINE];
+
+	if (tTd(37, 2))
+		printf("fileclass(%s, fmt=%s)\n", filename, fmt);
+
+	if (filename[0] == '|')
+	{
+		auto int fd;
+		int i;
+		char *argv[MAXPV + 1];
+
+		i = 0;
+		for (p = strtok(&filename[1], " \t"); p != NULL; p = strtok(NULL, " \t"))
+		{
+			if (i >= MAXPV)
+				break;
+			argv[i++] = p;
+		}
+		argv[i] = NULL;
+		pid = prog_open(argv, &fd, CurEnv);
+		if (pid < 0)
+			f = NULL;
+		else
+			f = fdopen(fd, "r");
+	}
+	else
+	{
+		pid = -1;
+		sff = SFF_REGONLY|SFF_NOWLINK;
+		if (safe)
+			sff |= SFF_OPENASROOT;
+		if (DontLockReadFiles)
+			sff |= SFF_NOLOCK;
+		f = safefopen(filename, O_RDONLY, 0, sff);
+	}
+	if (f == NULL)
+	{
+		if (!optional)
+			syserr("fileclass: cannot open %s", filename);
+		return;
+	}
+
+	while (fgets(buf, sizeof buf, f) != NULL)
+	{
+		register char *p;
+# if SCANF
+		char wordbuf[MAXLINE + 1];
+# endif
+
+		if (buf[0] == '#')
+			continue;
+# if SCANF
+		if (sscanf(buf, fmt, wordbuf) != 1)
+			continue;
+		p = wordbuf;
+# else /* SCANF */
+		p = buf;
+# endif /* SCANF */
+
+		/*
+		**  Break up the match into words.
+		*/
+
+		while (*p != '\0')
+		{
+			register char *q;
+
+			/* strip leading spaces */
+			while (isascii(*p) && isspace(*p))
+				p++;
+			if (*p == '\0')
+				break;
+
+			/* find the end of the word */
+			q = p;
+			while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+				p++;
+			if (*p != '\0')
+				*p++ = '\0';
+
+			/* enter the word in the symbol table */
+			setclass(class, q);
+		}
+	}
+
+	(void) fclose(f);
+	if (pid > 0)
+		(void) waitfor(pid);
+}
+/*
+**  MAKEMAILER -- define a new mailer.
+**
+**	Parameters:
+**		line -- description of mailer.  This is in labeled
+**			fields.  The fields are:
+**			   A -- the argv for this mailer
+**			   C -- the character set for MIME conversions
+**			   D -- the directory to run in
+**			   E -- the eol string
+**			   F -- the flags associated with the mailer
+**			   L -- the maximum line length
+**			   M -- the maximum message size
+**			   N -- the niceness at which to run
+**			   P -- the path to the mailer
+**			   R -- the recipient rewriting set
+**			   S -- the sender rewriting set
+**			   T -- the mailer type (for DSNs)
+**			   U -- the uid to run as
+**			The first word is the canonical name of the mailer.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		enters the mailer into the mailer table.
+*/
+
+void
+makemailer(line)
+	char *line;
+{
+	register char *p;
+	register struct mailer *m;
+	register STAB *s;
+	int i;
+	char fcode;
+	auto char *endp;
+	extern int NextMailer;
+	extern char **makeargv();
+	extern char *munchstring __P((char *, char **, int));
+
+	/* allocate a mailer and set up defaults */
+	m = (struct mailer *) xalloc(sizeof *m);
+	bzero((char *) m, sizeof *m);
+
+	/* collect the mailer name */
+	for (p = line; *p != '\0' && *p != ',' && !(isascii(*p) && isspace(*p)); p++)
+		continue;
+	if (*p != '\0')
+		*p++ = '\0';
+	if (line[0] == '\0')
+		syserr("name required for mailer");
+	m->m_name = newstr(line);
+
+	/* now scan through and assign info from the fields */
+	while (*p != '\0')
+	{
+		auto char *delimptr;
+
+		while (*p != '\0' && (*p == ',' || (isascii(*p) && isspace(*p))))
+			p++;
+
+		/* p now points to field code */
+		fcode = *p;
+		while (*p != '\0' && *p != '=' && *p != ',')
+			p++;
+		if (*p++ != '=')
+		{
+			syserr("mailer %s: `=' expected", m->m_name);
+			return;
+		}
+		while (isascii(*p) && isspace(*p))
+			p++;
+
+		/* p now points to the field body */
+		p = munchstring(p, &delimptr, ',');
+
+		/* install the field into the mailer struct */
+		switch (fcode)
+		{
+		  case 'P':		/* pathname */
+			if (*p == '\0')
+				syserr("mailer %s: empty path name", m->m_name);
+			m->m_mailer = newstr(p);
+			break;
+
+		  case 'F':		/* flags */
+			for (; *p != '\0'; p++)
+				if (!(isascii(*p) && isspace(*p)))
+					setbitn(*p, m->m_flags);
+			break;
+
+		  case 'S':		/* sender rewriting ruleset */
+		  case 'R':		/* recipient rewriting ruleset */
+			i = strtorwset(p, &endp, ST_ENTER);
+			if (i < 0)
+				return;
+			if (fcode == 'S')
+				m->m_sh_rwset = m->m_se_rwset = i;
+			else
+				m->m_rh_rwset = m->m_re_rwset = i;
+
+			p = endp;
+			if (*p++ == '/')
+			{
+				i = strtorwset(p, NULL, ST_ENTER);
+				if (i < 0)
+					return;
+				if (fcode == 'S')
+					m->m_sh_rwset = i;
+				else
+					m->m_rh_rwset = i;
+			}
+			break;
+
+		  case 'E':		/* end of line string */
+			if (*p == '\0')
+				syserr("mailer %s: null end-of-line string",
+					m->m_name);
+			m->m_eol = newstr(p);
+			break;
+
+		  case 'A':		/* argument vector */
+			if (*p == '\0')
+				syserr("mailer %s: null argument vector",
+					m->m_name);
+			m->m_argv = makeargv(p);
+			break;
+
+		  case 'M':		/* maximum message size */
+			m->m_maxsize = atol(p);
+			break;
+
+		  case 'L':		/* maximum line length */
+			m->m_linelimit = atoi(p);
+			if (m->m_linelimit < 0)
+				m->m_linelimit = 0;
+			break;
+
+		  case 'N':		/* run niceness */
+			m->m_nice = atoi(p);
+			break;
+
+		  case 'D':		/* working directory */
+			if (*p == '\0')
+				syserr("mailer %s: null working directory",
+					m->m_name);
+			m->m_execdir = newstr(p);
+			break;
+
+		  case 'C':		/* default charset */
+			if (*p == '\0')
+				syserr("mailer %s: null charset", m->m_name);
+			m->m_defcharset = newstr(p);
+			break;
+
+		  case 'T':		/* MTA-Name/Address/Diagnostic types */
+			/* extract MTA name type; default to "dns" */
+			m->m_mtatype = newstr(p);
+			p = strchr(m->m_mtatype, '/');
+			if (p != NULL)
+			{
+				*p++ = '\0';
+				if (*p == '\0')
+					p = NULL;
+			}
+			if (*m->m_mtatype == '\0')
+				m->m_mtatype = "dns";
+
+			/* extract address type; default to "rfc822" */
+			m->m_addrtype = p;
+			if (p != NULL)
+				p = strchr(p, '/');
+			if (p != NULL)
+			{
+				*p++ = '\0';
+				if (*p == '\0')
+					p = NULL;
+			}
+			if (m->m_addrtype == NULL || *m->m_addrtype == '\0')
+				m->m_addrtype = "rfc822";
+
+			/* extract diagnostic type; default to "smtp" */
+			m->m_diagtype = p;
+			if (m->m_diagtype == NULL || *m->m_diagtype == '\0')
+				m->m_diagtype = "smtp";
+			break;
+
+		  case 'U':		/* user id */
+			if (isascii(*p) && !isdigit(*p))
+			{
+				char *q = p;
+				struct passwd *pw;
+
+				while (*p != '\0' && isascii(*p) &&
+				       (isalnum(*p) || strchr("-_", *p) != NULL))
+					p++;
+				while (isascii(*p) && isspace(*p))
+					*p++ = '\0';
+				if (*p != '\0')
+					*p++ = '\0';
+				if (*q == '\0')
+					syserr("mailer %s: null user name",
+						m->m_name);
+				pw = sm_getpwnam(q);
+				if (pw == NULL)
+					syserr("readcf: mailer U= flag: unknown user %s", q);
+				else
+				{
+					m->m_uid = pw->pw_uid;
+					m->m_gid = pw->pw_gid;
+				}
+			}
+			else
+			{
+				auto char *q;
+
+				m->m_uid = strtol(p, &q, 0);
+				p = q;
+				while (isascii(*p) && isspace(*p))
+					p++;
+				if (*p != '\0')
+					p++;
+			}
+			while (isascii(*p) && isspace(*p))
+				p++;
+			if (*p == '\0')
+				break;
+			if (isascii(*p) && !isdigit(*p))
+			{
+				char *q = p;
+				struct group *gr;
+
+				while (isascii(*p) && isalnum(*p))
+					p++;
+				*p++ = '\0';
+				if (*q == '\0')
+					syserr("mailer %s: null group name",
+						m->m_name);
+				gr = getgrnam(q);
+				if (gr == NULL)
+					syserr("readcf: mailer U= flag: unknown group %s", q);
+				else
+					m->m_gid = gr->gr_gid;
+			}
+			else
+			{
+				m->m_gid = strtol(p, NULL, 0);
+			}
+			break;
+		}
+
+		p = delimptr;
+	}
+
+	/* do some rationality checking */
+	if (m->m_argv == NULL)
+	{
+		syserr("M%s: A= argument required", m->m_name);
+		return;
+	}
+	if (m->m_mailer == NULL)
+	{
+		syserr("M%s: P= argument required", m->m_name);
+		return;
+	}
+
+	if (NextMailer >= MAXMAILERS)
+	{
+		syserr("too many mailers defined (%d max)", MAXMAILERS);
+		return;
+	}
+
+	/* do some heuristic cleanup for back compatibility */
+	if (bitnset(M_LIMITS, m->m_flags))
+	{
+		if (m->m_linelimit == 0)
+			m->m_linelimit = SMTPLINELIM;
+		if (ConfigLevel < 2)
+			setbitn(M_7BITS, m->m_flags);
+	}
+
+	if (strcmp(m->m_mailer, "[IPC]") == 0 ||
+	    strcmp(m->m_mailer, "[TCP]") == 0)
+	{
+		if (m->m_mtatype == NULL)
+			m->m_mtatype = "dns";
+		if (m->m_addrtype == NULL)
+			m->m_addrtype = "rfc822";
+		if (m->m_diagtype == NULL)
+			m->m_diagtype = "smtp";
+	}
+
+	if (m->m_eol == NULL)
+	{
+		char **pp;
+
+		/* default for SMTP is \r\n; use \n for local delivery */
+		for (pp = m->m_argv; *pp != NULL; pp++)
+		{
+			char *p;
+
+			for (p = *pp; *p != '\0'; )
+			{
+				if ((*p++ & 0377) == MACROEXPAND && *p == 'u')
+					break;
+			}
+			if (*p != '\0')
+				break;
+		}
+		if (*pp == NULL)
+			m->m_eol = "\r\n";
+		else
+			m->m_eol = "\n";
+	}
+
+	/* enter the mailer into the symbol table */
+	s = stab(m->m_name, ST_MAILER, ST_ENTER);
+	if (s->s_mailer != NULL)
+	{
+		i = s->s_mailer->m_mno;
+		free(s->s_mailer);
+	}
+	else
+	{
+		i = NextMailer++;
+	}
+	Mailer[i] = s->s_mailer = m;
+	m->m_mno = i;
+}
+/*
+**  MUNCHSTRING -- translate a string into internal form.
+**
+**	Parameters:
+**		p -- the string to munch.
+**		delimptr -- if non-NULL, set to the pointer of the
+**			field delimiter character.
+**		delim -- the delimiter for the field.
+**
+**	Returns:
+**		the munched string.
+*/
+
+char *
+munchstring(p, delimptr, delim)
+	register char *p;
+	char **delimptr;
+	int delim;
+{
+	register char *q;
+	bool backslash = FALSE;
+	bool quotemode = FALSE;
+	static char buf[MAXLINE];
+
+	for (q = buf; *p != '\0' && q < &buf[sizeof buf - 1]; p++)
+	{
+		if (backslash)
+		{
+			/* everything is roughly literal */
+			backslash = FALSE;
+			switch (*p)
+			{
+			  case 'r':		/* carriage return */
+				*q++ = '\r';
+				continue;
+
+			  case 'n':		/* newline */
+				*q++ = '\n';
+				continue;
+
+			  case 'f':		/* form feed */
+				*q++ = '\f';
+				continue;
+
+			  case 'b':		/* backspace */
+				*q++ = '\b';
+				continue;
+			}
+			*q++ = *p;
+		}
+		else
+		{
+			if (*p == '\\')
+				backslash = TRUE;
+			else if (*p == '"')
+				quotemode = !quotemode;
+			else if (quotemode || *p != delim)
+				*q++ = *p;
+			else
+				break;
+		}
+	}
+
+	if (delimptr != NULL)
+		*delimptr = p;
+	*q++ = '\0';
+	return (buf);
+}
+/*
+**  MAKEARGV -- break up a string into words
+**
+**	Parameters:
+**		p -- the string to break up.
+**
+**	Returns:
+**		a char **argv (dynamically allocated)
+**
+**	Side Effects:
+**		munges p.
+*/
+
+char **
+makeargv(p)
+	register char *p;
+{
+	char *q;
+	int i;
+	char **avp;
+	char *argv[MAXPV + 1];
+
+	/* take apart the words */
+	i = 0;
+	while (*p != '\0' && i < MAXPV)
+	{
+		q = p;
+		while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+			p++;
+		while (isascii(*p) && isspace(*p))
+			*p++ = '\0';
+		argv[i++] = newstr(q);
+	}
+	argv[i++] = NULL;
+
+	/* now make a copy of the argv */
+	avp = (char **) xalloc(sizeof *avp * i);
+	bcopy((char *) argv, (char *) avp, sizeof *avp * i);
+
+	return (avp);
+}
+/*
+**  PRINTRULES -- print rewrite rules (for debugging)
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		prints rewrite rules.
+*/
+
+void
+printrules()
+{
+	register struct rewrite *rwp;
+	register int ruleset;
+
+	for (ruleset = 0; ruleset < 10; ruleset++)
+	{
+		if (RewriteRules[ruleset] == NULL)
+			continue;
+		printf("\n----Rule Set %d:", ruleset);
+
+		for (rwp = RewriteRules[ruleset]; rwp != NULL; rwp = rwp->r_next)
+		{
+			printf("\nLHS:");
+			printav(rwp->r_lhs);
+			printf("RHS:");
+			printav(rwp->r_rhs);
+		}
+	}
+}
+/*
+**  PRINTMAILER -- print mailer structure (for debugging)
+**
+**	Parameters:
+**		m -- the mailer to print
+**
+**	Returns:
+**		none.
+*/
+
+void
+printmailer(m)
+	register MAILER *m;
+{
+	int j;
+
+	printf("mailer %d (%s): P=%s S=%d/%d R=%d/%d M=%ld U=%d:%d F=",
+		m->m_mno, m->m_name,
+		m->m_mailer, m->m_se_rwset, m->m_sh_rwset,
+		m->m_re_rwset, m->m_rh_rwset, m->m_maxsize,
+		(int) m->m_uid, (int) m->m_gid);
+	for (j = '\0'; j <= '\177'; j++)
+		if (bitnset(j, m->m_flags))
+			(void) putchar(j);
+	printf(" L=%d E=", m->m_linelimit);
+	xputs(m->m_eol);
+	if (m->m_defcharset != NULL)
+		printf(" C=%s", m->m_defcharset);
+	printf(" T=%s/%s/%s",
+		m->m_mtatype == NULL ? "<undefined>" : m->m_mtatype,
+		m->m_addrtype == NULL ? "<undefined>" : m->m_addrtype,
+		m->m_diagtype == NULL ? "<undefined>" : m->m_diagtype);
+	if (m->m_argv != NULL)
+	{
+		char **a = m->m_argv;
+
+		printf(" A=");
+		while (*a != NULL)
+		{
+			if (a != m->m_argv)
+				printf(" ");
+			xputs(*a++);
+		}
+	}
+	printf("\n");
+}
+/*
+**  SETOPTION -- set global processing option
+**
+**	Parameters:
+**		opt -- option name.
+**		val -- option value (as a text string).
+**		safe -- set if this came from a configuration file.
+**			Some options (if set from the command line) will
+**			reset the user id to avoid security problems.
+**		sticky -- if set, don't let other setoptions override
+**			this value.
+**		e -- the main envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Sets options as implied by the arguments.
+*/
+
+static BITMAP	StickyOpt;		/* set if option is stuck */
+extern void	settimeout __P((char *, char *));
+
+
+#if NAMED_BIND
+
+struct resolverflags
+{
+	char	*rf_name;	/* name of the flag */
+	long	rf_bits;	/* bits to set/clear */
+} ResolverFlags[] =
+{
+	{ "debug",	RES_DEBUG	},
+	{ "aaonly",	RES_AAONLY	},
+	{ "usevc",	RES_USEVC	},
+	{ "primary",	RES_PRIMARY	},
+	{ "igntc",	RES_IGNTC	},
+	{ "recurse",	RES_RECURSE	},
+	{ "defnames",	RES_DEFNAMES	},
+	{ "stayopen",	RES_STAYOPEN	},
+	{ "dnsrch",	RES_DNSRCH	},
+	{ "true",	0		},	/* avoid error on old syntax */
+	{ NULL,		0		}
+};
+
+#endif
+
+struct optioninfo
+{
+	char	*o_name;	/* long name of option */
+	u_char	o_code;		/* short name of option */
+	bool	o_safe;		/* safe for random people to use */
+} OptionTab[] =
+{
+	{ "SevenBitInput",		'7',		TRUE	},
+#if MIME8TO7
+	{ "EightBitMode",		'8',		TRUE	},
+#endif
+	{ "AliasFile",			'A',		FALSE	},
+	{ "AliasWait",			'a',		FALSE	},
+	{ "BlankSub",			'B',		FALSE	},
+	{ "MinFreeBlocks",		'b',		TRUE	},
+	{ "CheckpointInterval",		'C',		TRUE	},
+	{ "HoldExpensive",		'c',		FALSE	},
+	{ "AutoRebuildAliases",		'D',		FALSE	},
+	{ "DeliveryMode",		'd',		TRUE	},
+	{ "ErrorHeader",		'E',		FALSE	},
+	{ "ErrorMode",			'e',		TRUE	},
+	{ "TempFileMode",		'F',		FALSE	},
+	{ "SaveFromLine",		'f',		FALSE	},
+	{ "MatchGECOS",			'G',		FALSE	},
+	{ "HelpFile",			'H',		FALSE	},
+	{ "MaxHopCount",		'h',		FALSE	},
+	{ "ResolverOptions",		'I',		FALSE	},
+	{ "IgnoreDots",			'i',		TRUE	},
+	{ "ForwardPath",		'J',		FALSE	},
+	{ "SendMimeErrors",		'j',		TRUE	},
+	{ "ConnectionCacheSize",	'k',		FALSE	},
+	{ "ConnectionCacheTimeout",	'K',		FALSE	},
+	{ "UseErrorsTo",		'l',		FALSE	},
+	{ "LogLevel",			'L',		TRUE	},
+	{ "MeToo",			'm',		TRUE	},
+	{ "CheckAliases",		'n',		FALSE	},
+	{ "OldStyleHeaders",		'o',		TRUE	},
+	{ "DaemonPortOptions",		'O',		FALSE	},
+	{ "PrivacyOptions",		'p',		TRUE	},
+	{ "PostmasterCopy",		'P',		FALSE	},
+	{ "QueueFactor",		'q',		FALSE	},
+	{ "QueueDirectory",		'Q',		FALSE	},
+	{ "DontPruneRoutes",		'R',		FALSE	},
+	{ "Timeout",			'r',		FALSE	},
+	{ "StatusFile",			'S',		FALSE	},
+	{ "SuperSafe",			's',		TRUE	},
+	{ "QueueTimeout",		'T',		FALSE	},
+	{ "TimeZoneSpec",		't',		FALSE	},
+	{ "UserDatabaseSpec",		'U',		FALSE	},
+	{ "DefaultUser",		'u',		FALSE	},
+	{ "FallbackMXhost",		'V',		FALSE	},
+	{ "Verbose",			'v',		TRUE	},
+	{ "TryNullMXList",		'w',		FALSE	},
+	{ "QueueLA",			'x',		FALSE	},
+	{ "RefuseLA",			'X',		FALSE	},
+	{ "RecipientFactor",		'y',		FALSE	},
+	{ "ForkEachJob",		'Y',		FALSE	},
+	{ "ClassFactor",		'z',		FALSE	},
+	{ "RetryFactor",		'Z',		FALSE	},
+#define O_QUEUESORTORD	0x81
+	{ "QueueSortOrder",		O_QUEUESORTORD,	TRUE	},
+#define O_HOSTSFILE	0x82
+	{ "HostsFile",			O_HOSTSFILE,	FALSE	},
+#define O_MQA		0x83
+	{ "MinQueueAge",		O_MQA,		TRUE	},
+#define O_DEFCHARSET	0x85
+	{ "DefaultCharSet",		O_DEFCHARSET,	TRUE	},
+#define O_SSFILE	0x86
+	{ "ServiceSwitchFile",		O_SSFILE,	FALSE	},
+#define O_DIALDELAY	0x87
+	{ "DialDelay",			O_DIALDELAY,	TRUE	},
+#define O_NORCPTACTION	0x88
+	{ "NoRecipientAction",		O_NORCPTACTION,	TRUE	},
+#define O_SAFEFILEENV	0x89
+	{ "SafeFileEnvironment",	O_SAFEFILEENV,	FALSE	},
+#define O_MAXMSGSIZE	0x8a
+	{ "MaxMessageSize",		O_MAXMSGSIZE,	FALSE	},
+#define O_COLONOKINADDR	0x8b
+	{ "ColonOkInAddr",		O_COLONOKINADDR, TRUE	},
+#define O_MAXQUEUERUN	0x8c
+	{ "MaxQueueRunSize",		O_MAXQUEUERUN,	TRUE	},
+#define O_MAXCHILDREN	0x8d
+	{ "MaxDaemonChildren",		O_MAXCHILDREN,	FALSE	},
+#define O_KEEPCNAMES	0x8e
+	{ "DontExpandCnames",		O_KEEPCNAMES,	FALSE	},
+#define O_MUSTQUOTE	0x8f
+	{ "MustQuoteChars",		O_MUSTQUOTE,	FALSE	},
+#define O_SMTPGREETING	0x90
+	{ "SmtpGreetingMessage",	O_SMTPGREETING,	FALSE	},
+#define O_UNIXFROM	0x91
+	{ "UnixFromLine",		O_UNIXFROM,	FALSE	},
+#define O_OPCHARS	0x92
+	{ "OperatorChars",		O_OPCHARS,	FALSE	},
+#define O_DONTINITGRPS	0x93
+	{ "DontInitGroups",		O_DONTINITGRPS,	FALSE	},
+#define O_SLFH		0x94
+	{ "SingleLineFromHeader",	O_SLFH,		TRUE	},
+#define O_ABH		0x95
+	{ "AllowBogusHELO",		O_ABH,		TRUE	},
+#define O_CONNTHROT	0x97
+	{ "ConnectionRateThrottle",	O_CONNTHROT,	FALSE	},
+#define O_UGW		0x99
+	{ "UnsafeGroupWrites",		O_UGW,		FALSE	},
+#define O_DBLBOUNCE	0x9a
+	{ "DoubleBounceAddress",	O_DBLBOUNCE,	FALSE	},
+#define O_HSDIR		0x9b
+	{ "HostStatusDirectory",	O_HSDIR,	FALSE	},
+#define O_SINGTHREAD	0x9c
+	{ "SingleThreadDelivery",	O_SINGTHREAD,	FALSE	},
+#define O_RUNASUSER	0x9d
+	{ "RunAsUser",			O_RUNASUSER,	FALSE	},
+#if _FFR_DSN_RRT_OPTION
+#define O_DSN_RRT	0x9e
+	{ "RrtImpliesDsn",		O_DSN_RRT,	FALSE	},
+#endif
+#if _FFR_PIDFILE_OPTION
+#define O_PIDFILE	0x9f
+	{ "PidFile",			O_PIDFILE,	FALSE	},
+#endif
+#if _FFR_WRITABLE_DIRECTORIES_ARE_FATAL_OPTION
+#define O_WDAF		0xa0
+	{ "WritableDirectoriesAreFatal", O_WDAF,	FALSE	},
+#endif
+#if _FFR_CHOWN_IS_ALWAYS_SAFE_OPTION
+#define O_CIAS		0xa1
+	{ "ChownIsAlwaysSafe",		O_CIAS,		FALSE	},
+#endif
+#if _FFR_DONT_PROBE_INTERFACES_OPTION
+#define O_DPI		0xa2
+	{ "DontProbeInterfaces",	O_DPI,		FALSE	},
+#endif
+#if _FFR_MAXRCPT_OPTION
+#define O_MAXRCPT	0xa3
+	{ "MaxRecipientPerMessage",	O_MAXRCPT,	FALSE	},
+#endif
+#if _FFR_DEADLETTERDROP_OPTION
+#define O_DEADLETTER	0xa4
+	{ "DeadLetterDrop",		O_DEADLETTER,	FALSE	},
+#endif
+#if _FFR_DONTLOCKFILESFORREAD_OPTION
+#define O_DONTLOCK	0xa5
+	{ "DontLockFilesForRead",	O_DONTLOCK,	FALSE	},
+#endif
+#if _FFR_MAXALIASRECURSION_OPTION
+#define O_MAXALIASRCSN	0xa6
+	{ "MaxAliasRecursion",		O_MAXALIASRCSN,	FALSE	},
+#endif
+
+	{ NULL,				'\0',		FALSE	}
+};
+
+
+
+void
+setoption(opt, val, safe, sticky, e)
+	int opt;
+	char *val;
+	bool safe;
+	bool sticky;
+	register ENVELOPE *e;
+{
+	register char *p;
+	register struct optioninfo *o;
+	char *subopt;
+	int mid;
+	auto char *ep;
+	char buf[50];
+	extern bool atobool();
+	extern time_t convtime();
+	extern int QueueLA;
+	extern int RefuseLA;
+	extern bool Warn_Q_option;
+	extern void setalias __P((char *));
+	extern int atooct __P((char *));
+	extern void setdefuser __P((void));
+	extern void setdaemonoptions __P((char *));
+
+	errno = 0;
+	if (opt == ' ')
+	{
+		/* full word options */
+		struct optioninfo *sel;
+
+		p = strchr(val, '=');
+		if (p == NULL)
+			p = &val[strlen(val)];
+		while (*--p == ' ')
+			continue;
+		while (*++p == ' ')
+			*p = '\0';
+		if (p == val)
+		{
+			syserr("readcf: null option name");
+			return;
+		}
+		if (*p == '=')
+			*p++ = '\0';
+		while (*p == ' ')
+			p++;
+		subopt = strchr(val, '.');
+		if (subopt != NULL)
+			*subopt++ = '\0';
+		sel = NULL;
+		for (o = OptionTab; o->o_name != NULL; o++)
+		{
+			if (strncasecmp(o->o_name, val, strlen(val)) != 0)
+				continue;
+			if (strlen(o->o_name) == strlen(val))
+			{
+				/* completely specified -- this must be it */
+				sel = NULL;
+				break;
+			}
+			if (sel != NULL)
+				break;
+			sel = o;
+		}
+		if (sel != NULL && o->o_name == NULL)
+			o = sel;
+		else if (o->o_name == NULL)
+		{
+			syserr("readcf: unknown option name %s", val);
+			return;
+		}
+		else if (sel != NULL)
+		{
+			syserr("readcf: ambiguous option name %s (matches %s and %s)",
+				val, sel->o_name, o->o_name);
+			return;
+		}
+		if (strlen(val) != strlen(o->o_name))
+		{
+			int oldVerbose = Verbose;
+
+			Verbose = 1;
+			message("Option %s used as abbreviation for %s",
+				val, o->o_name);
+			Verbose = oldVerbose;
+		}
+		opt = o->o_code;
+		val = p;
+	}
+	else
+	{
+		for (o = OptionTab; o->o_name != NULL; o++)
+		{
+			if (o->o_code == opt)
+				break;
+		}
+		subopt = NULL;
+	}
+
+	if (tTd(37, 1))
+	{
+		printf(isascii(opt) && isprint(opt) ?
+			    "setoption %s (%c).%s=" :
+			    "setoption %s (0x%x).%s=",
+			o->o_name == NULL ? "<unknown>" : o->o_name,
+			opt,
+			subopt == NULL ? "" : subopt);
+		xputs(val);
+	}
+
+	/*
+	**  See if this option is preset for us.
+	*/
+
+	if (!sticky && bitnset(opt, StickyOpt))
+	{
+		if (tTd(37, 1))
+			printf(" (ignored)\n");
+		return;
+	}
+
+	/*
+	**  Check to see if this option can be specified by this user.
+	*/
+
+	if (!safe && RealUid == 0)
+		safe = TRUE;
+	if (!safe && !o->o_safe)
+	{
+		if (opt != 'M' || (val[0] != 'r' && val[0] != 's'))
+		{
+			if (tTd(37, 1))
+				printf(" (unsafe)");
+			(void) drop_privileges(TRUE);
+		}
+	}
+	if (tTd(37, 1))
+		printf("\n");
+
+	switch (opt & 0xff)
+	{
+	  case '7':		/* force seven-bit input */
+		SevenBitInput = atobool(val);
+		break;
+
+#if MIME8TO7
+	  case '8':		/* handling of 8-bit input */
+		switch (*val)
+		{
+		  case 'm':		/* convert 8-bit, convert MIME */
+			MimeMode = MM_CVTMIME|MM_MIME8BIT;
+			break;
+
+		  case 'p':		/* pass 8 bit, convert MIME */
+			MimeMode = MM_CVTMIME|MM_PASS8BIT;
+			break;
+
+		  case 's':		/* strict adherence */
+			MimeMode = MM_CVTMIME;
+			break;
+
+#if 0
+		  case 'r':		/* reject 8-bit, don't convert MIME */
+			MimeMode = 0;
+			break;
+
+		  case 'j':		/* "just send 8" */
+			MimeMode = MM_PASS8BIT;
+			break;
+
+		  case 'a':		/* encode 8 bit if available */
+			MimeMode = MM_MIME8BIT|MM_PASS8BIT|MM_CVTMIME;
+			break;
+
+		  case 'c':		/* convert 8 bit to MIME, never 7 bit */
+			MimeMode = MM_MIME8BIT;
+			break;
+#endif
+
+		  default:
+			syserr("Unknown 8-bit mode %c", *val);
+			exit(EX_USAGE);
+		}
+		break;
+#endif
+
+	  case 'A':		/* set default alias file */
+		if (val[0] == '\0')
+			setalias("aliases");
+		else
+			setalias(val);
+		break;
+
+	  case 'a':		/* look N minutes for "@:@" in alias file */
+		if (val[0] == '\0')
+			SafeAlias = 5 * 60;		/* five minutes */
+		else
+			SafeAlias = convtime(val, 'm');
+		break;
+
+	  case 'B':		/* substitution for blank character */
+		SpaceSub = val[0];
+		if (SpaceSub == '\0')
+			SpaceSub = ' ';
+		break;
+
+	  case 'b':		/* min blocks free on queue fs/max msg size */
+		p = strchr(val, '/');
+		if (p != NULL)
+		{
+			*p++ = '\0';
+			MaxMessageSize = atol(p);
+		}
+		MinBlocksFree = atol(val);
+		break;
+
+	  case 'c':		/* don't connect to "expensive" mailers */
+		NoConnect = atobool(val);
+		break;
+
+	  case 'C':		/* checkpoint every N addresses */
+		CheckpointInterval = atoi(val);
+		break;
+
+	  case 'd':		/* delivery mode */
+		switch (*val)
+		{
+		  case '\0':
+			e->e_sendmode = SM_DELIVER;
+			break;
+
+		  case SM_QUEUE:	/* queue only */
+		  case SM_DEFER:	/* queue only and defer map lookups */
+#if !QUEUE
+			syserr("need QUEUE to set -odqueue or -oddefer");
+#endif /* QUEUE */
+			/* fall through..... */
+
+		  case SM_DELIVER:	/* do everything */
+		  case SM_FORK:		/* fork after verification */
+			e->e_sendmode = *val;
+			break;
+
+		  default:
+			syserr("Unknown delivery mode %c", *val);
+			exit(EX_USAGE);
+		}
+		break;
+
+	  case 'D':		/* rebuild alias database as needed */
+		AutoRebuild = atobool(val);
+		break;
+
+	  case 'E':		/* error message header/header file */
+		if (*val != '\0')
+			ErrMsgFile = newstr(val);
+		break;
+
+	  case 'e':		/* set error processing mode */
+		switch (*val)
+		{
+		  case EM_QUIET:	/* be silent about it */
+		  case EM_MAIL:		/* mail back */
+		  case EM_BERKNET:	/* do berknet error processing */
+		  case EM_WRITE:	/* write back (or mail) */
+		  case EM_PRINT:	/* print errors normally (default) */
+			e->e_errormode = *val;
+			break;
+		}
+		break;
+
+	  case 'F':		/* file mode */
+		FileMode = atooct(val) & 0777;
+		break;
+
+	  case 'f':		/* save Unix-style From lines on front */
+		SaveFrom = atobool(val);
+		break;
+
+	  case 'G':		/* match recipients against GECOS field */
+		MatchGecos = atobool(val);
+		break;
+
+	  case 'g':		/* default gid */
+  g_opt:
+		if (isascii(*val) && isdigit(*val))
+			DefGid = atoi(val);
+		else
+		{
+			register struct group *gr;
+
+			DefGid = -1;
+			gr = getgrnam(val);
+			if (gr == NULL)
+				syserr("readcf: option %c: unknown group %s",
+					opt, val);
+			else
+				DefGid = gr->gr_gid;
+		}
+		break;
+
+	  case 'H':		/* help file */
+		if (val[0] == '\0')
+			HelpFile = "sendmail.hf";
+		else
+			HelpFile = newstr(val);
+		break;
+
+	  case 'h':		/* maximum hop count */
+		MaxHopCount = atoi(val);
+		break;
+
+	  case 'I':		/* use internet domain name server */
+#if NAMED_BIND
+		for (p = val; *p != 0; )
+		{
+			bool clearmode;
+			char *q;
+			struct resolverflags *rfp;
+
+			while (*p == ' ')
+				p++;
+			if (*p == '\0')
+				break;
+			clearmode = FALSE;
+			if (*p == '-')
+				clearmode = TRUE;
+			else if (*p != '+')
+				p--;
+			p++;
+			q = p;
+			while (*p != '\0' && !(isascii(*p) && isspace(*p)))
+				p++;
+			if (*p != '\0')
+				*p++ = '\0';
+			if (strcasecmp(q, "HasWildcardMX") == 0)
+			{
+				HasWildcardMX = !clearmode;
+				continue;
+			}
+			for (rfp = ResolverFlags; rfp->rf_name != NULL; rfp++)
+			{
+				if (strcasecmp(q, rfp->rf_name) == 0)
+					break;
+			}
+			if (rfp->rf_name == NULL)
+				syserr("readcf: I option value %s unrecognized", q);
+			else if (clearmode)
+				_res.options &= ~rfp->rf_bits;
+			else
+				_res.options |= rfp->rf_bits;
+		}
+		if (tTd(8, 2))
+			printf("_res.options = %x, HasWildcardMX = %d\n",
+				(u_int) _res.options, HasWildcardMX);
+#else
+		usrerr("name server (I option) specified but BIND not compiled in");
+#endif
+		break;
+
+	  case 'i':		/* ignore dot lines in message */
+		IgnrDot = atobool(val);
+		break;
+
+	  case 'j':		/* send errors in MIME (RFC 1341) format */
+		SendMIMEErrors = atobool(val);
+		break;
+
+	  case 'J':		/* .forward search path */
+		ForwardPath = newstr(val);
+		break;
+
+	  case 'k':		/* connection cache size */
+		MaxMciCache = atoi(val);
+		if (MaxMciCache < 0)
+			MaxMciCache = 0;
+		break;
+
+	  case 'K':		/* connection cache timeout */
+		MciCacheTimeout = convtime(val, 'm');
+		break;
+
+	  case 'l':		/* use Errors-To: header */
+		UseErrorsTo = atobool(val);
+		break;
+
+	  case 'L':		/* log level */
+		if (safe || LogLevel < atoi(val))
+			LogLevel = atoi(val);
+		break;
+
+	  case 'M':		/* define macro */
+		mid = macid(val, &ep);
+		p = newstr(ep);
+		if (!safe)
+			cleanstrcpy(p, p, MAXNAME);
+		define(mid, p, CurEnv);
+		sticky = FALSE;
+		break;
+
+	  case 'm':		/* send to me too */
+		MeToo = atobool(val);
+		break;
+
+	  case 'n':		/* validate RHS in newaliases */
+		CheckAliases = atobool(val);
+		break;
+
+	    /* 'N' available -- was "net name" */
+
+	  case 'O':		/* daemon options */
+#if DAEMON
+		setdaemonoptions(val);
+#else
+		syserr("DaemonPortOptions (O option) set but DAEMON not compiled in");
+#endif
+		break;
+
+	  case 'o':		/* assume old style headers */
+		if (atobool(val))
+			CurEnv->e_flags |= EF_OLDSTYLE;
+		else
+			CurEnv->e_flags &= ~EF_OLDSTYLE;
+		break;
+
+	  case 'p':		/* select privacy level */
+		p = val;
+		for (;;)
+		{
+			register struct prival *pv;
+			extern struct prival PrivacyValues[];
+
+			while (isascii(*p) && (isspace(*p) || ispunct(*p)))
+				p++;
+			if (*p == '\0')
+				break;
+			val = p;
+			while (isascii(*p) && isalnum(*p))
+				p++;
+			if (*p != '\0')
+				*p++ = '\0';
+
+			for (pv = PrivacyValues; pv->pv_name != NULL; pv++)
+			{
+				if (strcasecmp(val, pv->pv_name) == 0)
+					break;
+			}
+			if (pv->pv_name == NULL)
+				syserr("readcf: Op line: %s unrecognized", val);
+			PrivacyFlags |= pv->pv_flag;
+		}
+		sticky = FALSE;
+		break;
+
+	  case 'P':		/* postmaster copy address for returned mail */
+		PostMasterCopy = newstr(val);
+		break;
+
+	  case 'q':		/* slope of queue only function */
+		QueueFactor = atoi(val);
+		break;
+
+	  case 'Q':		/* queue directory */
+		if (val[0] == '\0')
+			QueueDir = "mqueue";
+		else
+			QueueDir = newstr(val);
+		if (RealUid != 0 && !safe)
+			Warn_Q_option = TRUE;
+		break;
+
+	  case 'R':		/* don't prune routes */
+		DontPruneRoutes = atobool(val);
+		break;
+
+	  case 'r':		/* read timeout */
+		if (subopt == NULL)
+			inittimeouts(val);
+		else
+			settimeout(subopt, val);
+		break;
+
+	  case 'S':		/* status file */
+		if (val[0] == '\0')
+			StatFile = "sendmail.st";
+		else
+			StatFile = newstr(val);
+		break;
+
+	  case 's':		/* be super safe, even if expensive */
+		SuperSafe = atobool(val);
+		break;
+
+	  case 'T':		/* queue timeout */
+		p = strchr(val, '/');
+		if (p != NULL)
+		{
+			*p++ = '\0';
+			settimeout("queuewarn", p);
+		}
+		settimeout("queuereturn", val);
+		break;
+
+	  case 't':		/* time zone name */
+		TimeZoneSpec = newstr(val);
+		break;
+
+	  case 'U':		/* location of user database */
+		UdbSpec = newstr(val);
+		break;
+
+	  case 'u':		/* set default uid */
+		for (p = val; *p != '\0'; p++)
+		{
+			if (*p == '.' || *p == '/' || *p == ':')
+			{
+				*p++ = '\0';
+				break;
+			}
+		}
+		if (isascii(*val) && isdigit(*val))
+			DefUid = atoi(val);
+		else
+		{
+			register struct passwd *pw;
+
+			DefUid = -1;
+			pw = sm_getpwnam(val);
+			if (pw == NULL)
+				syserr("readcf: option u: unknown user %s", val);
+			else
+			{
+				DefUid = pw->pw_uid;
+				DefGid = pw->pw_gid;
+			}
+		}
+
+#ifdef UID_MAX
+		if (DefUid > UID_MAX)
+		{
+			syserr("readcf: option u: uid value (%ld) > UID_MAX (%ld); ignored",
+				DefUid, UID_MAX);
+		}
+#endif
+		setdefuser();
+
+		/* handle the group if it is there */
+		if (*p == '\0')
+			break;
+		val = p;
+		goto g_opt;
+
+	  case 'V':		/* fallback MX host */
+		if (val[0] != '\0')
+			FallBackMX = newstr(val);
+		break;
+
+	  case 'v':		/* run in verbose mode */
+		Verbose = atobool(val) ? 1 : 0;
+		break;
+
+	  case 'w':		/* if we are best MX, try host directly */
+		TryNullMXList = atobool(val);
+		break;
+
+	    /* 'W' available -- was wizard password */
+
+	  case 'x':		/* load avg at which to auto-queue msgs */
+		QueueLA = atoi(val);
+		break;
+
+	  case 'X':		/* load avg at which to auto-reject connections */
+		RefuseLA = atoi(val);
+		break;
+
+	  case 'y':		/* work recipient factor */
+		WkRecipFact = atoi(val);
+		break;
+
+	  case 'Y':		/* fork jobs during queue runs */
+		ForkQueueRuns = atobool(val);
+		break;
+
+	  case 'z':		/* work message class factor */
+		WkClassFact = atoi(val);
+		break;
+
+	  case 'Z':		/* work time factor */
+		WkTimeFact = atoi(val);
+		break;
+
+	  case O_QUEUESORTORD:	/* queue sorting order */
+		switch (*val)
+		{
+		  case 'h':	/* Host first */
+		  case 'H':
+			QueueSortOrder = QS_BYHOST;
+			break;
+
+		  case 'p':	/* Priority order */
+		  case 'P':
+			QueueSortOrder = QS_BYPRIORITY;
+			break;
+
+		  case 't':	/* Submission time */
+		  case 'T':
+			QueueSortOrder = QS_BYTIME;
+			break;
+
+		  default:
+			syserr("Invalid queue sort order \"%s\"", val);
+		}
+		break;
+
+	  case O_HOSTSFILE:	/* pathname of /etc/hosts file */
+		HostsFile = newstr(val);
+		break;
+
+	  case O_MQA:		/* minimum queue age between deliveries */
+		MinQueueAge = convtime(val, 'm');
+		break;
+
+	  case O_DEFCHARSET:	/* default character set for mimefying */
+		DefaultCharSet = newstr(denlstring(val, TRUE, TRUE));
+		break;
+
+	  case O_SSFILE:	/* service switch file */
+		ServiceSwitchFile = newstr(val);
+		break;
+
+	  case O_DIALDELAY:	/* delay for dial-on-demand operation */
+		DialDelay = convtime(val, 's');
+		break;
+
+	  case O_NORCPTACTION:	/* what to do if no recipient */
+		if (strcasecmp(val, "none") == 0)
+			NoRecipientAction = NRA_NO_ACTION;
+		else if (strcasecmp(val, "add-to") == 0)
+			NoRecipientAction = NRA_ADD_TO;
+		else if (strcasecmp(val, "add-apparently-to") == 0)
+			NoRecipientAction = NRA_ADD_APPARENTLY_TO;
+		else if (strcasecmp(val, "add-bcc") == 0)
+			NoRecipientAction = NRA_ADD_BCC;
+		else if (strcasecmp(val, "add-to-undisclosed") == 0)
+			NoRecipientAction = NRA_ADD_TO_UNDISCLOSED;
+		else
+			syserr("Invalid NoRecipientAction: %s", val);
+		break;
+
+	  case O_SAFEFILEENV:	/* chroot() environ for writing to files */
+		SafeFileEnv = newstr(val);
+		break;
+
+	  case O_MAXMSGSIZE:	/* maximum message size */
+		MaxMessageSize = atol(val);
+		break;
+
+	  case O_COLONOKINADDR:	/* old style handling of colon addresses */
+		ColonOkInAddr = atobool(val);
+		break;
+
+	  case O_MAXQUEUERUN:	/* max # of jobs in a single queue run */
+		MaxQueueRun = atol(val);
+		break;
+
+	  case O_MAXCHILDREN:	/* max # of children of daemon */
+		MaxChildren = atoi(val);
+		break;
+
+	  case O_KEEPCNAMES:	/* don't expand CNAME records */
+		DontExpandCnames = atobool(val);
+		break;
+
+	  case O_MUSTQUOTE:	/* must quote these characters in phrases */
+		strcpy(buf, "@,;:\\()[]");
+		if (strlen(val) < (SIZE_T) sizeof buf - 10)
+			strcat(buf, val);
+		MustQuoteChars = newstr(buf);
+		break;
+
+	  case O_SMTPGREETING:	/* SMTP greeting message (old $e macro) */
+		SmtpGreeting = newstr(munchstring(val, NULL, '\0'));
+		break;
+
+	  case O_UNIXFROM:	/* UNIX From_ line (old $l macro) */
+		UnixFromLine = newstr(munchstring(val, NULL, '\0'));
+		break;
+
+	  case O_OPCHARS:	/* operator characters (old $o macro) */
+		OperatorChars = newstr(munchstring(val, NULL, '\0'));
+		break;
+
+	  case O_DONTINITGRPS:	/* don't call initgroups(3) */
+		DontInitGroups = atobool(val);
+		break;
+
+	  case O_SLFH:		/* make sure from fits on one line */
+		SingleLineFromHeader = atobool(val);
+		break;
+
+	  case O_ABH:		/* allow HELO commands with syntax errors */
+		AllowBogusHELO = atobool(val);
+		break;
+
+	  case O_CONNTHROT:	/* connection rate throttle */
+		ConnRateThrottle = atoi(val);
+		break;
+
+	  case O_UGW:		/* group writable files are unsafe */
+		UnsafeGroupWrites = atobool(val);
+		break;
+
+	  case O_DBLBOUNCE:	/* address to which to send double bounces */
+		if (val[0] != '\0')
+			DoubleBounceAddr = newstr(val);
+		else
+			syserr("readcf: option DoubleBounceAddress: value required");
+		break;
+
+	  case O_HSDIR:		/* persistent host status directory */
+		if (val[0] != '\0')
+			HostStatDir = newstr(val);
+		break;
+
+	  case O_SINGTHREAD:	/* single thread deliveries (requires hsdir) */
+		SingleThreadDelivery = atobool(val);
+		break;
+
+	  case O_RUNASUSER:	/* run bulk of code as this user */
+		for (p = val; *p != '\0'; p++)
+		{
+			if (*p == '.' || *p == '/' || *p == ':')
+			{
+				*p++ = '\0';
+				break;
+			}
+		}
+		if (isascii(*val) && isdigit(*val))
+		{
+			if (RunAsUid == 0)
+				RunAsUid = atoi(val);
+		}
+		else
+		{
+			register struct passwd *pw;
+
+			pw = sm_getpwnam(val);
+			if (pw == NULL)
+				syserr("readcf: option RunAsUser: unknown user %s", val);
+			else if (RunAsUid == 0)
+			{
+				if (*p == '\0')
+					RunAsUserName = newstr(val);
+				RunAsUid = pw->pw_uid;
+				RunAsGid = pw->pw_gid;
+			}
+		}
+		if (*p == '\0')
+			break;
+		if (isascii(*p) && isdigit(*p))
+		{
+			if (RunAsGid == 0)
+				RunAsGid = atoi(p);
+		}
+		else
+		{
+			register struct group *gr;
+
+			gr = getgrnam(p);
+			if (gr == NULL)
+				syserr("readcf: option RunAsUser: unknown group %s",
+					p);
+			else if (RunAsGid == 0)
+				RunAsGid = gr->gr_gid;
+		}
+		break;
+
+#if _FFR_DSN_RRT_OPTION
+	  case O_DSN_RRT:
+		RrtImpliesDsn = atobool(val);
+		break;
+#endif
+
+#if _FFR_PIDFILE_OPTION
+	  case O_PIDFILE:
+		free(PidFile);
+		PidFile = newstr(val);
+		break;
+#endif
+
+#if _FFR_WRITABLE_DIRECTORIES_ARE_FATAL_OPTION
+	  case O_WDAF:
+		FatalWritableDirs = atobool(val);
+		break;
+#endif
+
+#if _FFR_CHOWN_IS_ALWAYS_SAFE_OPTION
+	  case O_CIAS:
+		ChownIsAlwaysSafe = atobool(val);
+		break;
+#endif
+
+#if _FFR_DONT_PROBE_INTERFACES_OPTION
+	  case O_DPI:
+		DontProbeInterfaces = atobool(val);
+		break;
+#endif
+
+#if _FFR_MAXRCPT_OPTION
+	  case O_MAXRCPT:
+		MaxRcptPerMsg = atoi(val);
+		break;
+#endif
+
+#if _FFR_DEADLETTERDROP_OPTION
+	  case O_DEADLETTER:
+		if (DeadLetterDrop != NULL)
+			free(DeadLetterDrop);
+		DeadLetterDrop = newstr(val);
+		break;
+#endif
+
+#if _FFR_DONTLOCKFILESFORREAD_OPTION
+	  case O_DONTLOCK:
+		DontLockReadFiles = atobool(val);
+		break;
+#endif
+
+#if _FFR_MAXALIASRECURSION_OPTION
+	  case O_MAXALIASRCSN:
+		MaxAliasRecursion = atoi(val);
+		break;
+#endif
+
+	  default:
+		if (tTd(37, 1))
+		{
+			if (isascii(opt) && isprint(opt))
+				printf("Warning: option %c unknown\n", opt);
+			else
+				printf("Warning: option 0x%x unknown\n", opt);
+		}
+		break;
+	}
+	if (sticky)
+		setbitn(opt, StickyOpt);
+}
+/*
+**  SETCLASS -- set a string into a class
+**
+**	Parameters:
+**		class -- the class to put the string in.
+**		str -- the string to enter
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		puts the word into the symbol table.
+*/
+
+void
+setclass(class, str)
+	int class;
+	char *str;
+{
+	register STAB *s;
+
+	if (tTd(37, 8))
+		printf("setclass(%s, %s)\n", macname(class), str);
+	s = stab(str, ST_CLASS, ST_ENTER);
+	setbitn(class, s->s_class);
+}
+/*
+**  MAKEMAPENTRY -- create a map entry
+**
+**	Parameters:
+**		line -- the config file line
+**
+**	Returns:
+**		A pointer to the map that has been created.
+**		NULL if there was a syntax error.
+**
+**	Side Effects:
+**		Enters the map into the dictionary.
+*/
+
+MAP *
+makemapentry(line)
+	char *line;
+{
+	register char *p;
+	char *mapname;
+	char *classname;
+	register STAB *s;
+	STAB *class;
+
+	for (p = line; isascii(*p) && isspace(*p); p++)
+		continue;
+	if (!(isascii(*p) && isalnum(*p)))
+	{
+		syserr("readcf: config K line: no map name");
+		return NULL;
+	}
+
+	mapname = p;
+	while ((isascii(*++p) && isalnum(*p)) || *p == '_' || *p == '.')
+		continue;
+	if (*p != '\0')
+		*p++ = '\0';
+	while (isascii(*p) && isspace(*p))
+		p++;
+	if (!(isascii(*p) && isalnum(*p)))
+	{
+		syserr("readcf: config K line, map %s: no map class", mapname);
+		return NULL;
+	}
+	classname = p;
+	while (isascii(*++p) && isalnum(*p))
+		continue;
+	if (*p != '\0')
+		*p++ = '\0';
+	while (isascii(*p) && isspace(*p))
+		p++;
+
+	/* look up the class */
+	class = stab(classname, ST_MAPCLASS, ST_FIND);
+	if (class == NULL)
+	{
+		syserr("readcf: map %s: class %s not available", mapname, classname);
+		return NULL;
+	}
+
+	/* enter the map */
+	s = stab(mapname, ST_MAP, ST_ENTER);
+	s->s_map.map_class = &class->s_mapclass;
+	s->s_map.map_mname = newstr(mapname);
+
+	if (class->s_mapclass.map_parse(&s->s_map, p))
+		s->s_map.map_mflags |= MF_VALID;
+
+	if (tTd(37, 5))
+	{
+		printf("map %s, class %s, flags %lx, file %s,\n",
+			s->s_map.map_mname, s->s_map.map_class->map_cname,
+			s->s_map.map_mflags,
+			s->s_map.map_file == NULL ? "(null)" : s->s_map.map_file);
+		printf("\tapp %s, domain %s, rebuild %s\n",
+			s->s_map.map_app == NULL ? "(null)" : s->s_map.map_app,
+			s->s_map.map_domain == NULL ? "(null)" : s->s_map.map_domain,
+			s->s_map.map_rebuild == NULL ? "(null)" : s->s_map.map_rebuild);
+	}
+
+	return &s->s_map;
+}
+/*
+**  STRTORWSET -- convert string to rewriting set number
+**
+**	Parameters:
+**		p -- the pointer to the string to decode.
+**		endp -- if set, store the trailing delimiter here.
+**		stabmode -- ST_ENTER to create this entry, ST_FIND if
+**			it must already exist.
+**
+**	Returns:
+**		The appropriate ruleset number.
+**		-1 if it is not valid (error already printed)
+*/
+
+int
+strtorwset(p, endp, stabmode)
+	char *p;
+	char **endp;
+	int stabmode;
+{
+	int ruleset;
+	static int nextruleset = MAXRWSETS;
+
+	while (isascii(*p) && isspace(*p))
+		p++;
+	if (!isascii(*p))
+	{
+		syserr("invalid ruleset name: \"%.20s\"", p);
+		return -1;
+	}
+	if (isdigit(*p))
+	{
+		ruleset = strtol(p, endp, 10);
+		if (ruleset >= MAXRWSETS / 2 || ruleset < 0)
+		{
+			syserr("bad ruleset %d (%d max)",
+				ruleset, MAXRWSETS / 2);
+			ruleset = -1;
+		}
+	}
+	else
+	{
+		STAB *s;
+		char delim;
+		char *q;
+
+		q = p;
+		while (*p != '\0' && isascii(*p) &&
+		       (isalnum(*p) || *p == '_'))
+			p++;
+		if (q == p || !isalpha(*q))
+		{
+			/* no valid characters */
+			syserr("invalid ruleset name: \"%.20s\"", q);
+			return -1;
+		}
+		while (isascii(*p) && isspace(*p))
+			*p++ = '\0';
+		delim = *p;
+		if (delim != '\0')
+			*p = '\0';
+		s = stab(q, ST_RULESET, stabmode);
+		if (delim != '\0')
+			*p = delim;
+
+		if (s == NULL)
+			return -1;
+
+		if (stabmode == ST_ENTER && delim == '=')
+		{
+			while (isascii(*++p) && isspace(*p))
+				continue;
+			if (!isdigit(*p))
+			{
+				syserr("bad ruleset definition \"%s\" (number required after `=')", q);
+				ruleset = -1;
+			}
+			else
+			{
+				ruleset = strtol(p, endp, 10);
+				if (ruleset >= MAXRWSETS / 2 || ruleset < 0)
+				{
+					syserr("bad ruleset number %d in \"%s\" (%d max)",
+						ruleset, q, MAXRWSETS / 2);
+					ruleset = -1;
+				}
+			}
+		}
+		else
+		{
+			if (endp != NULL)
+				*endp = p;
+			if (s->s_ruleset > 0)
+				ruleset = s->s_ruleset;
+			else if ((ruleset = --nextruleset) < MAXRWSETS / 2)
+			{
+				syserr("%s: too many named rulesets (%d max)",
+					q, MAXRWSETS / 2);
+				ruleset = -1;
+			}
+		}
+		if (s->s_ruleset > 0 && ruleset >= 0 && ruleset != s->s_ruleset)
+		{
+			syserr("%s: ruleset changed value (old %d, new %d)",
+				q, s->s_ruleset, ruleset);
+			ruleset = s->s_ruleset;
+		}
+		else if (ruleset > 0)
+		{
+			s->s_ruleset = ruleset;
+		}
+	}
+	return ruleset;
+}
+/*
+**  INITTIMEOUTS -- parse and set timeout values
+**
+**	Parameters:
+**		val -- a pointer to the values.  If NULL, do initial
+**			settings.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Initializes the TimeOuts structure
+*/
+
+#define SECONDS
+#define MINUTES	* 60
+#define HOUR	* 3600
+
+void
+inittimeouts(val)
+	register char *val;
+{
+	register char *p;
+	extern time_t convtime();
+
+	if (tTd(37, 2))
+		printf("inittimeouts(%s)\n", val == NULL ? "<NULL>" : val);
+	if (val == NULL)
+	{
+		TimeOuts.to_connect = (time_t) 0 SECONDS;
+		TimeOuts.to_initial = (time_t) 5 MINUTES;
+		TimeOuts.to_helo = (time_t) 5 MINUTES;
+		TimeOuts.to_mail = (time_t) 10 MINUTES;
+		TimeOuts.to_rcpt = (time_t) 1 HOUR;
+		TimeOuts.to_datainit = (time_t) 5 MINUTES;
+		TimeOuts.to_datablock = (time_t) 1 HOUR;
+		TimeOuts.to_datafinal = (time_t) 1 HOUR;
+		TimeOuts.to_rset = (time_t) 5 MINUTES;
+		TimeOuts.to_quit = (time_t) 2 MINUTES;
+		TimeOuts.to_nextcommand = (time_t) 1 HOUR;
+		TimeOuts.to_miscshort = (time_t) 2 MINUTES;
+#if IDENTPROTO
+		TimeOuts.to_ident = (time_t) 30 SECONDS;
+#else
+		TimeOuts.to_ident = (time_t) 0 SECONDS;
+#endif
+		TimeOuts.to_fileopen = (time_t) 60 SECONDS;
+		if (tTd(37, 5))
+		{
+			printf("Timeouts:\n");
+			printf("  connect = %ld\n", TimeOuts.to_connect);
+			printf("  initial = %ld\n", TimeOuts.to_initial);
+			printf("  helo = %ld\n", TimeOuts.to_helo);
+			printf("  mail = %ld\n", TimeOuts.to_mail);
+			printf("  rcpt = %ld\n", TimeOuts.to_rcpt);
+			printf("  datainit = %ld\n", TimeOuts.to_datainit);
+			printf("  datablock = %ld\n", TimeOuts.to_datablock);
+			printf("  datafinal = %ld\n", TimeOuts.to_datafinal);
+			printf("  rset = %ld\n", TimeOuts.to_rset);
+			printf("  quit = %ld\n", TimeOuts.to_quit);
+			printf("  nextcommand = %ld\n", TimeOuts.to_nextcommand);
+			printf("  miscshort = %ld\n", TimeOuts.to_miscshort);
+			printf("  ident = %ld\n", TimeOuts.to_ident);
+			printf("  fileopen = %ld\n", TimeOuts.to_fileopen);
+		}
+		return;
+	}
+
+	for (;; val = p)
+	{
+		while (isascii(*val) && isspace(*val))
+			val++;
+		if (*val == '\0')
+			break;
+		for (p = val; *p != '\0' && *p != ','; p++)
+			continue;
+		if (*p != '\0')
+			*p++ = '\0';
+
+		if (isascii(*val) && isdigit(*val))
+		{
+			/* old syntax -- set everything */
+			TimeOuts.to_mail = convtime(val, 'm');
+			TimeOuts.to_rcpt = TimeOuts.to_mail;
+			TimeOuts.to_datainit = TimeOuts.to_mail;
+			TimeOuts.to_datablock = TimeOuts.to_mail;
+			TimeOuts.to_datafinal = TimeOuts.to_mail;
+			TimeOuts.to_nextcommand = TimeOuts.to_mail;
+			continue;
+		}
+		else
+		{
+			register char *q = strchr(val, ':');
+
+			if (q == NULL && (q = strchr(val, '=')) == NULL)
+			{
+				/* syntax error */
+				continue;
+			}
+			*q++ = '\0';
+			settimeout(val, q);
+		}
+	}
+}
+/*
+**  SETTIMEOUT -- set an individual timeout
+**
+**	Parameters:
+**		name -- the name of the timeout.
+**		val -- the value of the timeout.
+**
+**	Returns:
+**		none.
+*/
+
+void
+settimeout(name, val)
+	char *name;
+	char *val;
+{
+	register char *p;
+	time_t to;
+	extern time_t convtime();
+
+	if (tTd(37, 2))
+		printf("settimeout(%s = %s)\n", name, val);
+
+	to = convtime(val, 'm');
+	p = strchr(name, '.');
+	if (p != NULL)
+		*p++ = '\0';
+
+	if (strcasecmp(name, "initial") == 0)
+		TimeOuts.to_initial = to;
+	else if (strcasecmp(name, "mail") == 0)
+		TimeOuts.to_mail = to;
+	else if (strcasecmp(name, "rcpt") == 0)
+		TimeOuts.to_rcpt = to;
+	else if (strcasecmp(name, "datainit") == 0)
+		TimeOuts.to_datainit = to;
+	else if (strcasecmp(name, "datablock") == 0)
+		TimeOuts.to_datablock = to;
+	else if (strcasecmp(name, "datafinal") == 0)
+		TimeOuts.to_datafinal = to;
+	else if (strcasecmp(name, "command") == 0)
+		TimeOuts.to_nextcommand = to;
+	else if (strcasecmp(name, "rset") == 0)
+		TimeOuts.to_rset = to;
+	else if (strcasecmp(name, "helo") == 0)
+		TimeOuts.to_helo = to;
+	else if (strcasecmp(name, "quit") == 0)
+		TimeOuts.to_quit = to;
+	else if (strcasecmp(name, "misc") == 0)
+		TimeOuts.to_miscshort = to;
+	else if (strcasecmp(name, "ident") == 0)
+		TimeOuts.to_ident = to;
+	else if (strcasecmp(name, "fileopen") == 0)
+		TimeOuts.to_fileopen = to;
+	else if (strcasecmp(name, "connect") == 0)
+		TimeOuts.to_connect = to;
+	else if (strcasecmp(name, "iconnect") == 0)
+		TimeOuts.to_iconnect = to;
+	else if (strcasecmp(name, "queuewarn") == 0)
+	{
+		to = convtime(val, 'h');
+		if (p == NULL || strcmp(p, "*") == 0)
+		{
+			TimeOuts.to_q_warning[TOC_NORMAL] = to;
+			TimeOuts.to_q_warning[TOC_URGENT] = to;
+			TimeOuts.to_q_warning[TOC_NONURGENT] = to;
+		}
+		else if (strcasecmp(p, "normal") == 0)
+			TimeOuts.to_q_warning[TOC_NORMAL] = to;
+		else if (strcasecmp(p, "urgent") == 0)
+			TimeOuts.to_q_warning[TOC_URGENT] = to;
+		else if (strcasecmp(p, "non-urgent") == 0)
+			TimeOuts.to_q_warning[TOC_NONURGENT] = to;
+		else
+			syserr("settimeout: invalid queuewarn subtimeout %s", p);
+	}
+	else if (strcasecmp(name, "queuereturn") == 0)
+	{
+		to = convtime(val, 'd');
+		if (p == NULL || strcmp(p, "*") == 0)
+		{
+			TimeOuts.to_q_return[TOC_NORMAL] = to;
+			TimeOuts.to_q_return[TOC_URGENT] = to;
+			TimeOuts.to_q_return[TOC_NONURGENT] = to;
+		}
+		else if (strcasecmp(p, "normal") == 0)
+			TimeOuts.to_q_return[TOC_NORMAL] = to;
+		else if (strcasecmp(p, "urgent") == 0)
+			TimeOuts.to_q_return[TOC_URGENT] = to;
+		else if (strcasecmp(p, "non-urgent") == 0)
+			TimeOuts.to_q_return[TOC_NONURGENT] = to;
+		else
+			syserr("settimeout: invalid queuereturn subtimeout %s", p);
+	}
+	else if (strcasecmp(name, "hoststatus") == 0)
+		MciInfoTimeout = convtime(val, 'm');
+	else
+		syserr("settimeout: invalid timeout %s", name);
+}
diff --git a/src/recipient.c b/src/recipient.c
new file mode 100644
index 0000000..adcce7a
--- /dev/null
+++ b/src/recipient.c
@@ -0,0 +1,1379 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)recipient.c	8.133 (Berkeley) 10/19/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+/*
+**  SENDTOLIST -- Designate a send list.
+**
+**	The parameter is a comma-separated list of people to send to.
+**	This routine arranges to send to all of them.
+**
+**	Parameters:
+**		list -- the send list.
+**		ctladdr -- the address template for the person to
+**			send to -- effective uid/gid are important.
+**			This is typically the alias that caused this
+**			expansion.
+**		sendq -- a pointer to the head of a queue to put
+**			these people into.
+**		aliaslevel -- the current alias nesting depth -- to
+**			diagnose loops.
+**		e -- the envelope in which to add these recipients.
+**
+**	Returns:
+**		The number of addresses actually on the list.
+**
+**	Side Effects:
+**		none.
+*/
+
+/* q_flags bits inherited from ctladdr */
+#define QINHERITEDBITS	(QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY|QHASNOTIFY)
+
+int
+sendtolist(list, ctladdr, sendq, aliaslevel, e)
+	char *list;
+	ADDRESS *ctladdr;
+	ADDRESS **sendq;
+	int aliaslevel;
+	register ENVELOPE *e;
+{
+	register char *p;
+	register ADDRESS *al;	/* list of addresses to send to */
+	char delimiter;		/* the address delimiter */
+	int naddrs;
+	int i;
+	char *oldto = e->e_to;
+	char *bufp;
+	char buf[MAXNAME + 1];
+
+	if (list == NULL)
+	{
+		syserr("sendtolist: null list");
+		return 0;
+	}
+
+	if (tTd(25, 1))
+	{
+		printf("sendto: %s\n   ctladdr=", list);
+		printaddr(ctladdr, FALSE);
+	}
+
+	/* heuristic to determine old versus new style addresses */
+	if (ctladdr == NULL &&
+	    (strchr(list, ',') != NULL || strchr(list, ';') != NULL ||
+	     strchr(list, '<') != NULL || strchr(list, '(') != NULL))
+		e->e_flags &= ~EF_OLDSTYLE;
+	delimiter = ' ';
+	if (!bitset(EF_OLDSTYLE, e->e_flags) || ctladdr != NULL)
+		delimiter = ',';
+
+	al = NULL;
+	naddrs = 0;
+
+	/* make sure we have enough space to copy the string */
+	i = strlen(list) + 1;
+	if (i <= sizeof buf)
+		bufp = buf;
+	else
+		bufp = xalloc(i);
+	strcpy(bufp, denlstring(list, FALSE, TRUE));
+
+	for (p = bufp; *p != '\0'; )
+	{
+		auto char *delimptr;
+		register ADDRESS *a;
+
+		/* parse the address */
+		while ((isascii(*p) && isspace(*p)) || *p == ',')
+			p++;
+		a = parseaddr(p, NULLADDR, RF_COPYALL, delimiter, &delimptr, e);
+		p = delimptr;
+		if (a == NULL)
+			continue;
+		a->q_next = al;
+		a->q_alias = ctladdr;
+
+		/* arrange to inherit attributes from parent */
+		if (ctladdr != NULL)
+		{
+			ADDRESS *b;
+			extern ADDRESS *self_reference();
+
+			/* self reference test */
+			if (sameaddr(ctladdr, a))
+			{
+				if (tTd(27, 5))
+				{
+					printf("sendtolist: QSELFREF ");
+					printaddr(ctladdr, FALSE);
+				}
+				ctladdr->q_flags |= QSELFREF;
+			}
+
+			/* check for address loops */
+			b = self_reference(a, e);
+			if (b != NULL)
+			{
+				b->q_flags |= QSELFREF;
+				if (tTd(27, 5))
+				{
+					printf("sendtolist: QSELFREF ");
+					printaddr(b, FALSE);
+				}
+				if (a != b)
+				{
+					if (tTd(27, 5))
+					{
+						printf("sendtolist: QDONTSEND ");
+						printaddr(a, FALSE);
+					}
+					a->q_flags |= QDONTSEND;
+					b->q_flags |= a->q_flags & QNOTREMOTE;
+					continue;
+				}
+			}
+
+			/* full name */
+			if (a->q_fullname == NULL)
+				a->q_fullname = ctladdr->q_fullname;
+
+			/* various flag bits */
+			a->q_flags &= ~QINHERITEDBITS;
+			a->q_flags |= ctladdr->q_flags & QINHERITEDBITS;
+
+			/* original recipient information */
+			a->q_orcpt = ctladdr->q_orcpt;
+		}
+
+		al = a;
+	}
+
+	/* arrange to send to everyone on the local send list */
+	while (al != NULL)
+	{
+		register ADDRESS *a = al;
+
+		al = a->q_next;
+		a = recipient(a, sendq, aliaslevel, e);
+		naddrs++;
+	}
+
+	e->e_to = oldto;
+	if (bufp != buf)
+		free(bufp);
+	return (naddrs);
+}
+/*
+**  RECIPIENT -- Designate a message recipient
+**
+**	Saves the named person for future mailing.
+**
+**	Parameters:
+**		a -- the (preparsed) address header for the recipient.
+**		sendq -- a pointer to the head of a queue to put the
+**			recipient in.  Duplicate supression is done
+**			in this queue.
+**		aliaslevel -- the current alias nesting depth.
+**		e -- the current envelope.
+**
+**	Returns:
+**		The actual address in the queue.  This will be "a" if
+**		the address is not a duplicate, else the original address.
+**
+**	Side Effects:
+**		none.
+*/
+
+ADDRESS *
+recipient(a, sendq, aliaslevel, e)
+	register ADDRESS *a;
+	register ADDRESS **sendq;
+	int aliaslevel;
+	register ENVELOPE *e;
+{
+	register ADDRESS *q;
+	ADDRESS **pq;
+	register struct mailer *m;
+	register char *p;
+	bool quoted = FALSE;		/* set if the addr has a quote bit */
+	int findusercount = 0;
+	bool initialdontsend = bitset(QDONTSEND, a->q_flags);
+	int i;
+	char *buf;
+	char buf0[MAXNAME + 1];		/* unquoted image of the user name */
+	extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
+
+	e->e_to = a->q_paddr;
+	m = a->q_mailer;
+	errno = 0;
+	if (aliaslevel == 0)
+		a->q_flags |= QPRIMARY;
+	if (tTd(26, 1))
+	{
+		printf("\nrecipient (%d): ", aliaslevel);
+		printaddr(a, FALSE);
+	}
+
+	/* if this is primary, add it to the original recipient list */
+	if (a->q_alias == NULL)
+	{
+		if (e->e_origrcpt == NULL)
+			e->e_origrcpt = a->q_paddr;
+		else if (e->e_origrcpt != a->q_paddr)
+			e->e_origrcpt = "";
+	}
+
+	/* break aliasing loops */
+	if (aliaslevel > MaxAliasRecursion)
+	{
+		a->q_flags |= QBADADDR;
+		a->q_status = "5.4.6";
+		usrerr("554 aliasing/forwarding loop broken (%d aliases deep; %d max)",
+			aliaslevel, MaxAliasRecursion);
+		return (a);
+	}
+
+	/*
+	**  Finish setting up address structure.
+	*/
+
+	/* get unquoted user for file, program or user.name check */
+	i = strlen(a->q_user);
+	if (i >= sizeof buf0)
+		buf = xalloc(i + 1);
+	else
+		buf = buf0;
+	(void) strcpy(buf, a->q_user);
+	for (p = buf; *p != '\0' && !quoted; p++)
+	{
+		if (*p == '\\')
+			quoted = TRUE;
+	}
+	stripquotes(buf);
+
+	/* check for direct mailing to restricted mailers */
+	if (m == ProgMailer)
+	{
+		if (a->q_alias == NULL)
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.7.1";
+			usrerr("550 Cannot mail directly to programs");
+		}
+		else if (bitset(QBOGUSSHELL, a->q_alias->q_flags))
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.7.1";
+			if (a->q_alias->q_ruser == NULL)
+				usrerr("550 UID %d is an unknown user: cannot mail to programs",
+					a->q_alias->q_uid);
+			else
+				usrerr("550 User %s@%s doesn't have a valid shell for mailing to programs",
+					a->q_alias->q_ruser, MyHostName);
+		}
+		else if (bitset(QUNSAFEADDR, a->q_alias->q_flags))
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.7.1";
+			usrerr("550 Address %s is unsafe for mailing to programs",
+				a->q_alias->q_paddr);
+		}
+	}
+
+	/*
+	**  Look up this person in the recipient list.
+	**	If they are there already, return, otherwise continue.
+	**	If the list is empty, just add it.  Notice the cute
+	**	hack to make from addresses suppress things correctly:
+	**	the QDONTSEND bit will be set in the send list.
+	**	[Please note: the emphasis is on "hack."]
+	*/
+
+	for (pq = sendq; (q = *pq) != NULL; pq = &q->q_next)
+	{
+		if (sameaddr(q, a) && bitset(QRCPTOK, q->q_flags))
+		{
+			if (tTd(26, 1))
+			{
+				printf("%s in sendq: ", a->q_paddr);
+				printaddr(q, FALSE);
+			}
+			if (!bitset(QPRIMARY, q->q_flags))
+			{
+				if (!bitset(QDONTSEND, a->q_flags))
+					message("duplicate suppressed");
+				q->q_flags |= a->q_flags;
+			}
+			else if (bitset(QSELFREF, q->q_flags))
+				q->q_flags |= a->q_flags & ~QDONTSEND;
+			a = q;
+			goto done;
+		}
+	}
+
+	/* add address on list */
+	*pq = a;
+	a->q_next = NULL;
+
+	/*
+	**  Alias the name and handle special mailer types.
+	*/
+
+  trylocaluser:
+	if (tTd(29, 7))
+		printf("at trylocaluser %s\n", a->q_user);
+
+	if (bitset(QDONTSEND|QBADADDR|QVERIFIED, a->q_flags))
+		goto testselfdestruct;
+
+	if (m == InclMailer)
+	{
+		a->q_flags |= QDONTSEND;
+		if (a->q_alias == NULL)
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.7.1";
+			usrerr("550 Cannot mail directly to :include:s");
+		}
+		else
+		{
+			int ret;
+
+			message("including file %s", a->q_user);
+			ret = include(a->q_user, FALSE, a, sendq, aliaslevel, e);
+			if (transienterror(ret))
+			{
+				if (LogLevel > 2)
+					sm_syslog(LOG_ERR, e->e_id,
+						"include %s: transient error: %s",
+						shortenstring(a->q_user, 203),
+						errstring(ret));
+				a->q_flags |= QQUEUEUP;
+				a->q_flags &= ~QDONTSEND;
+				usrerr("451 Cannot open %s: %s",
+					shortenstring(a->q_user, 203),
+					errstring(ret));
+			}
+			else if (ret != 0)
+			{
+				a->q_flags |= QBADADDR;
+				a->q_status = "5.2.4";
+				usrerr("550 Cannot open %s: %s",
+					shortenstring(a->q_user, 203),
+					errstring(ret));
+			}
+		}
+	}
+	else if (m == FileMailer)
+	{
+		extern bool writable();
+
+		/* check if writable or creatable */
+		if (a->q_alias == NULL)
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.7.1";
+			usrerr("550 Cannot mail directly to files");
+		}
+		else if (bitset(QBOGUSSHELL, a->q_alias->q_flags))
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.7.1";
+			if (a->q_alias->q_ruser == NULL)
+				usrerr("550 UID %d is an unknown user: cannot mail to files",
+					a->q_alias->q_uid);
+			else
+				usrerr("550 User %s@%s doesn't have a valid shell for mailing to files",
+					a->q_alias->q_ruser, MyHostName);
+		}
+		else if (bitset(QUNSAFEADDR, a->q_alias->q_flags))
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.7.1";
+			usrerr("550 Address %s is unsafe for mailing to files",
+				a->q_alias->q_paddr);
+		}
+		else if (strcmp(buf, "/dev/null") == 0)
+		{
+			/* /dev/null is always accepted */
+		}
+		else if (!writable(buf, a->q_alias, SFF_CREAT))
+		{
+			a->q_flags |= QBADADDR;
+			giveresponse(EX_CANTCREAT, m, NULL, a->q_alias,
+				     (time_t) 0, e);
+		}
+	}
+
+	/* try aliasing */
+	if (!quoted && !bitset(QDONTSEND, a->q_flags) &&
+	    bitnset(M_ALIASABLE, m->m_flags))
+		alias(a, sendq, aliaslevel, e);
+
+# if USERDB
+	/* if not aliased, look it up in the user database */
+	if (!bitset(QDONTSEND|QNOTREMOTE|QVERIFIED, a->q_flags) &&
+	    bitnset(M_CHECKUDB, m->m_flags))
+	{
+		extern int udbexpand();
+
+		if (udbexpand(a, sendq, aliaslevel, e) == EX_TEMPFAIL)
+		{
+			a->q_flags |= QQUEUEUP;
+			if (e->e_message == NULL)
+				e->e_message = newstr("Deferred: user database error");
+			if (LogLevel > 8)
+				sm_syslog(LOG_INFO, e->e_id,
+					"deferred: udbexpand: %s",
+					errstring(errno));
+			message("queued (user database error): %s",
+				errstring(errno));
+			e->e_nrcpts++;
+			goto testselfdestruct;
+		}
+	}
+# endif
+
+	/*
+	**  If we have a level two config file, then pass the name through
+	**  Ruleset 5 before sending it off.  Ruleset 5 has the right
+	**  to send rewrite it to another mailer.  This gives us a hook
+	**  after local aliasing has been done.
+	*/
+
+	if (tTd(29, 5))
+	{
+		printf("recipient: testing local?  cl=%d, rr5=%lx\n\t",
+			ConfigLevel, (u_long) RewriteRules[5]);
+		printaddr(a, FALSE);
+	}
+	if (!bitset(QNOTREMOTE|QDONTSEND|QQUEUEUP|QVERIFIED, a->q_flags) &&
+	    ConfigLevel >= 2 && RewriteRules[5] != NULL &&
+	    bitnset(M_TRYRULESET5, m->m_flags))
+	{
+		extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
+
+		maplocaluser(a, sendq, aliaslevel + 1, e);
+	}
+
+	/*
+	**  If it didn't get rewritten to another mailer, go ahead
+	**  and deliver it.
+	*/
+
+	if (!bitset(QDONTSEND|QQUEUEUP|QVERIFIED, a->q_flags) &&
+	    bitnset(M_HASPWENT, m->m_flags))
+	{
+		auto bool fuzzy;
+		register struct passwd *pw;
+		extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
+
+		/* warning -- finduser may trash buf */
+		pw = finduser(buf, &fuzzy);
+		if (pw == NULL || strlen(pw->pw_name) > MAXNAME)
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.1.1";
+			giveresponse(EX_NOUSER, m, NULL, a->q_alias,
+				     (time_t) 0, e);
+		}
+		else
+		{
+			char nbuf[MAXNAME + 1];
+
+			if (fuzzy)
+			{
+				/* name was a fuzzy match */
+				a->q_user = newstr(pw->pw_name);
+				if (findusercount++ > 3)
+				{
+					a->q_flags |= QBADADDR;
+					a->q_status = "5.4.6";
+					usrerr("554 aliasing/forwarding loop for %s broken",
+						pw->pw_name);
+					goto done;
+				}
+
+				/* see if it aliases */
+				(void) strcpy(buf, pw->pw_name);
+				goto trylocaluser;
+			}
+			if (strcmp(pw->pw_dir, "/") == 0)
+				a->q_home = "";
+			else
+				a->q_home = newstr(pw->pw_dir);
+			a->q_uid = pw->pw_uid;
+			a->q_gid = pw->pw_gid;
+			a->q_ruser = newstr(pw->pw_name);
+			a->q_flags |= QGOODUID;
+			buildfname(pw->pw_gecos, pw->pw_name, nbuf, sizeof nbuf);
+			if (nbuf[0] != '\0')
+				a->q_fullname = newstr(nbuf);
+			if (!usershellok(pw->pw_name, pw->pw_shell))
+			{
+				a->q_flags |= QBOGUSSHELL;
+			}
+			if (bitset(EF_VRFYONLY, e->e_flags))
+			{
+				/* don't do any more now */
+				a->q_flags |= QVERIFIED;
+			}
+			else if (!quoted)
+				forward(a, sendq, aliaslevel, e);
+		}
+	}
+	if (!bitset(QDONTSEND, a->q_flags))
+		e->e_nrcpts++;
+
+  testselfdestruct:
+	a->q_flags |= QTHISPASS;
+	if (tTd(26, 8))
+	{
+		printf("testselfdestruct: ");
+		printaddr(a, FALSE);
+		if (tTd(26, 10))
+		{
+			printf("SENDQ:\n");
+			printaddr(*sendq, TRUE);
+			printf("----\n");
+		}
+	}
+	if (a->q_alias == NULL && a != &e->e_from &&
+	    bitset(QDONTSEND, a->q_flags))
+	{
+		for (q = *sendq; q != NULL; q = q->q_next)
+		{
+			if (!bitset(QDONTSEND, q->q_flags))
+				break;
+		}
+		if (q == NULL)
+		{
+			a->q_flags |= QBADADDR;
+			a->q_status = "5.4.6";
+			usrerr("554 aliasing/forwarding loop broken");
+		}
+	}
+
+  done:
+	a->q_flags |= QTHISPASS;
+	if (buf != buf0)
+		free(buf);
+
+	/*
+	**  If we are at the top level, check to see if this has
+	**  expanded to exactly one address.  If so, it can inherit
+	**  the primaryness of the address.
+	**
+	**  While we're at it, clear the QTHISPASS bits.
+	*/
+
+	if (aliaslevel == 0)
+	{
+		int nrcpts = 0;
+		ADDRESS *only = NULL;
+
+		for (q = *sendq; q != NULL; q = q->q_next)
+		{
+			if (bitset(QTHISPASS, q->q_flags) &&
+			    !bitset(QDONTSEND|QBADADDR, q->q_flags))
+			{
+				nrcpts++;
+				only = q;
+			}
+			q->q_flags &= ~QTHISPASS;
+		}
+		if (nrcpts == 1)
+		{
+			/* check to see if this actually got a new owner */
+			q = only;
+			while ((q = q->q_alias) != NULL)
+			{
+				if (q->q_owner != NULL)
+					break;
+			}
+			if (q == NULL)
+				only->q_flags |= QPRIMARY;
+		}
+		else if (!initialdontsend && nrcpts > 0)
+		{
+			/* arrange for return receipt */
+			e->e_flags |= EF_SENDRECEIPT;
+			a->q_flags |= QEXPANDED;
+			if (e->e_xfp != NULL && bitset(QPINGONSUCCESS, a->q_flags))
+				fprintf(e->e_xfp,
+					"%s... expanded to multiple addresses\n",
+					a->q_paddr);
+		}
+	}
+	a->q_flags |= QRCPTOK;
+	return (a);
+}
+/*
+**  FINDUSER -- find the password entry for a user.
+**
+**	This looks a lot like getpwnam, except that it may want to
+**	do some fancier pattern matching in /etc/passwd.
+**
+**	This routine contains most of the time of many sendmail runs.
+**	It deserves to be optimized.
+**
+**	Parameters:
+**		name -- the name to match against.
+**		fuzzyp -- an outarg that is set to TRUE if this entry
+**			was found using the fuzzy matching algorithm;
+**			set to FALSE otherwise.
+**
+**	Returns:
+**		A pointer to a pw struct.
+**		NULL if name is unknown or ambiguous.
+**
+**	Side Effects:
+**		may modify name.
+*/
+
+struct passwd *
+finduser(name, fuzzyp)
+	char *name;
+	bool *fuzzyp;
+{
+	register struct passwd *pw;
+	register char *p;
+	bool tryagain;
+
+	if (tTd(29, 4))
+		printf("finduser(%s): ", name);
+
+	*fuzzyp = FALSE;
+
+#ifdef HESIOD
+	/* DEC Hesiod getpwnam accepts numeric strings -- short circuit it */
+	for (p = name; *p != '\0'; p++)
+		if (!isascii(*p) || !isdigit(*p))
+			break;
+	if (*p == '\0')
+	{
+		if (tTd(29, 4))
+			printf("failed (numeric input)\n");
+		return NULL;
+	}
+#endif
+
+	/* look up this login name using fast path */
+	if ((pw = sm_getpwnam(name)) != NULL)
+	{
+		if (tTd(29, 4))
+			printf("found (non-fuzzy)\n");
+		return (pw);
+	}
+
+	/* try mapping it to lower case */
+	tryagain = FALSE;
+	for (p = name; *p != '\0'; p++)
+	{
+		if (isascii(*p) && isupper(*p))
+		{
+			*p = tolower(*p);
+			tryagain = TRUE;
+		}
+	}
+	if (tryagain && (pw = sm_getpwnam(name)) != NULL)
+	{
+		if (tTd(29, 4))
+			printf("found (lower case)\n");
+		*fuzzyp = TRUE;
+		return pw;
+	}
+
+#if MATCHGECOS
+	/* see if fuzzy matching allowed */
+	if (!MatchGecos)
+	{
+		if (tTd(29, 4))
+			printf("not found (fuzzy disabled)\n");
+		return NULL;
+	}
+
+	/* search for a matching full name instead */
+	for (p = name; *p != '\0'; p++)
+	{
+		if (*p == (SpaceSub & 0177) || *p == '_')
+			*p = ' ';
+	}
+	(void) setpwent();
+	while ((pw = getpwent()) != NULL)
+	{
+		char buf[MAXNAME + 1];
+
+# if 0
+		if (strcasecmp(pw->pw_name, name) == 0)
+		{
+			if (tTd(29, 4))
+				printf("found (case wrapped)\n");
+			break;
+		}
+# endif
+
+		buildfname(pw->pw_gecos, pw->pw_name, buf, sizeof buf);
+		if (strchr(buf, ' ') != NULL && !strcasecmp(buf, name))
+		{
+			if (tTd(29, 4))
+				printf("fuzzy matches %s\n", pw->pw_name);
+			message("sending to login name %s", pw->pw_name);
+			break;
+		}
+	}
+	if (pw != NULL)
+		*fuzzyp = TRUE;
+	else if (tTd(29, 4))
+		printf("no fuzzy match found\n");
+# if DEC_OSF_BROKEN_GETPWENT	/* DEC OSF/1 3.2 or earlier */
+	endpwent();
+# endif
+	return pw;
+#else
+	if (tTd(29, 4))
+		printf("not found (fuzzy disabled)\n");
+	return NULL;
+#endif
+}
+/*
+**  WRITABLE -- predicate returning if the file is writable.
+**
+**	This routine must duplicate the algorithm in sys/fio.c.
+**	Unfortunately, we cannot use the access call since we
+**	won't necessarily be the real uid when we try to
+**	actually open the file.
+**
+**	Notice that ANY file with ANY execute bit is automatically
+**	not writable.  This is also enforced by mailfile.
+**
+**	Parameters:
+**		filename -- the file name to check.
+**		ctladdr -- the controlling address for this file.
+**		flags -- SFF_* flags to control the function.
+**
+**	Returns:
+**		TRUE -- if we will be able to write this file.
+**		FALSE -- if we cannot write this file.
+**
+**	Side Effects:
+**		none.
+*/
+
+bool
+writable(filename, ctladdr, flags)
+	char *filename;
+	ADDRESS *ctladdr;
+	int flags;
+{
+	uid_t euid;
+	gid_t egid;
+	char *uname;
+
+	if (tTd(44, 5))
+		printf("writable(%s, 0x%x)\n", filename, flags);
+
+	/*
+	**  File does exist -- check that it is writable.
+	*/
+
+	if (geteuid() != 0)
+	{
+		euid = geteuid();
+		egid = getegid();
+		uname = NULL;
+	}
+	else if (ctladdr != NULL)
+	{
+		euid = ctladdr->q_uid;
+		egid = ctladdr->q_gid;
+		uname = ctladdr->q_user;
+	}
+	else if (bitset(SFF_RUNASREALUID, flags))
+	{
+		euid = RealUid;
+		egid = RealGid;
+		uname = RealUserName;
+	}
+	else if (FileMailer != NULL && !bitset(SFF_ROOTOK, flags))
+	{
+		euid = FileMailer->m_uid;
+		egid = FileMailer->m_gid;
+		uname = NULL;
+	}
+	else
+	{
+		euid = egid = 0;
+		uname = NULL;
+	}
+	if (!bitset(SFF_ROOTOK, flags))
+	{
+		if (euid == 0)
+		{
+			euid = DefUid;
+			uname = DefUser;
+		}
+		if (egid == 0)
+			egid = DefGid;
+	}
+	if (geteuid() == 0 &&
+	    (ctladdr == NULL || !bitset(QGOODUID, ctladdr->q_flags)))
+		flags |= SFF_SETUIDOK;
+	flags |= SFF_NOLINK;
+
+	errno = safefile(filename, euid, egid, uname, flags, S_IWRITE, NULL);
+	return errno == 0;
+}
+/*
+**  INCLUDE -- handle :include: specification.
+**
+**	Parameters:
+**		fname -- filename to include.
+**		forwarding -- if TRUE, we are reading a .forward file.
+**			if FALSE, it's a :include: file.
+**		ctladdr -- address template to use to fill in these
+**			addresses -- effective user/group id are
+**			the important things.
+**		sendq -- a pointer to the head of the send queue
+**			to put these addresses in.
+**		aliaslevel -- the alias nesting depth.
+**		e -- the current envelope.
+**
+**	Returns:
+**		open error status
+**
+**	Side Effects:
+**		reads the :include: file and sends to everyone
+**		listed in that file.
+**
+**	Security Note:
+**		If you have restricted chown (that is, you can't
+**		give a file away), it is reasonable to allow programs
+**		and files called from this :include: file to be to be
+**		run as the owner of the :include: file.  This is bogus
+**		if there is any chance of someone giving away a file.
+**		We assume that pre-POSIX systems can give away files.
+**
+**		There is an additional restriction that if you
+**		forward to a :include: file, it will not take on
+**		the ownership of the :include: file.  This may not
+**		be necessary, but shouldn't hurt.
+*/
+
+static jmp_buf	CtxIncludeTimeout;
+static void	includetimeout();
+
+int
+include(fname, forwarding, ctladdr, sendq, aliaslevel, e)
+	char *fname;
+	bool forwarding;
+	ADDRESS *ctladdr;
+	ADDRESS **sendq;
+	int aliaslevel;
+	ENVELOPE *e;
+{
+	FILE *volatile fp = NULL;
+	char *oldto = e->e_to;
+	char *oldfilename = FileName;
+	int oldlinenumber = LineNumber;
+	register EVENT *ev = NULL;
+	int nincludes;
+	register ADDRESS *ca;
+	volatile uid_t saveduid, uid;
+	volatile gid_t savedgid, gid;
+	char *volatile uname;
+	int rval = 0;
+	volatile int sfflags = SFF_REGONLY;
+	register char *p;
+	bool safechown = FALSE;
+	volatile bool safedir = FALSE;
+	struct stat st;
+	char buf[MAXLINE];
+	extern bool chownsafe();
+
+	if (tTd(27, 2))
+		printf("include(%s)\n", fname);
+	if (tTd(27, 4))
+		printf("   ruid=%d euid=%d\n", (int) getuid(), (int) geteuid());
+	if (tTd(27, 14))
+	{
+		printf("ctladdr ");
+		printaddr(ctladdr, FALSE);
+	}
+
+	if (tTd(27, 9))
+		printf("include: old uid = %d/%d\n",
+		       (int) getuid(), (int) geteuid());
+
+	if (forwarding)
+		sfflags |= SFF_MUSTOWN|SFF_ROOTOK|SFF_NOSLINK;
+
+	ca = getctladdr(ctladdr);
+	if (ca == NULL)
+	{
+		uid = DefUid;
+		gid = DefGid;
+		uname = DefUser;
+	}
+	else
+	{
+		uid = ca->q_uid;
+		gid = ca->q_gid;
+		uname = ca->q_user;
+	}
+#if HASSETREUID || USESETEUID
+	saveduid = geteuid();
+	savedgid = getegid();
+	if (saveduid == 0)
+	{
+		if (!DontInitGroups)
+			initgroups(uname, gid);
+		if (gid != 0)
+			(void) setgid(gid);
+		if (uid != 0)
+		{
+# if USESETEUID
+			if (seteuid(uid) < 0)
+				syserr("seteuid(%d) failure (real=%d, eff=%d)",
+					uid, getuid(), geteuid());
+# else
+			if (setreuid(0, uid) < 0)
+				syserr("setreuid(0, %d) failure (real=%d, eff=%d)",
+					uid, getuid(), geteuid());
+# endif
+			else
+				sfflags |= SFF_NOPATHCHECK;
+		}
+	}
+#endif
+
+	if (tTd(27, 9))
+		printf("include: new uid = %d/%d\n",
+		       (int) getuid(), (int) geteuid());
+
+	/*
+	**  If home directory is remote mounted but server is down,
+	**  this can hang or give errors; use a timeout to avoid this
+	*/
+
+	if (setjmp(CtxIncludeTimeout) != 0)
+	{
+		ctladdr->q_flags |= QQUEUEUP;
+		errno = 0;
+
+		/* return pseudo-error code */
+		rval = E_SM_OPENTIMEOUT;
+		goto resetuid;
+	}
+	if (TimeOuts.to_fileopen > 0)
+		ev = setevent(TimeOuts.to_fileopen, includetimeout, 0);
+	else
+		ev = NULL;
+
+	/* check for writable parent directory */
+	p = strrchr(fname, '/');
+	if (p != NULL)
+	{
+		*p = '\0';
+		if (safedirpath(fname, uid, gid, uname, sfflags|SFF_SAFEDIRPATH) == 0)
+		{
+			/* in safe directory: relax chown & link rules */
+			safedir = TRUE;
+			sfflags |= SFF_NOPATHCHECK;
+		}
+		*p = '/';
+	}
+
+	/* allow links only in unwritable directories */
+	if (!safedir)
+		sfflags |= SFF_NOLINK;
+
+	rval = safefile(fname, uid, gid, uname, sfflags, S_IREAD, &st);
+	if (rval != 0)
+	{
+		/* don't use this :include: file */
+		if (tTd(27, 4))
+			printf("include: not safe (uid=%d): %s\n",
+				(int) uid, errstring(rval));
+	}
+	else if ((fp = fopen(fname, "r")) == NULL)
+	{
+		rval = errno;
+		if (tTd(27, 4))
+			printf("include: open: %s\n", errstring(rval));
+	}
+	else if (filechanged(fname, fileno(fp), &st, sfflags))
+	{
+		rval = E_SM_FILECHANGE;
+		if (tTd(27, 4))
+			printf("include: file changed after open\n");
+	}
+	if (ev != NULL)
+		clrevent(ev);
+
+resetuid:
+
+#if HASSETREUID || USESETEUID
+	if (saveduid == 0)
+	{
+		if (uid != 0)
+		{
+# if USESETEUID
+			if (seteuid(0) < 0)
+				syserr("seteuid(0) failure (real=%d, eff=%d)",
+					getuid(), geteuid());
+# else
+			if (setreuid(-1, 0) < 0)
+				syserr("setreuid(-1, 0) failure (real=%d, eff=%d)",
+					getuid(), geteuid());
+			if (setreuid(RealUid, 0) < 0)
+				syserr("setreuid(%d, 0) failure (real=%d, eff=%d)",
+					RealUid, getuid(), geteuid());
+# endif
+		}
+		setgid(savedgid);
+	}
+#endif
+
+	if (tTd(27, 9))
+		printf("include: reset uid = %d/%d\n",
+		       (int) getuid(), (int) geteuid());
+
+	if (rval == E_SM_OPENTIMEOUT)
+		usrerr("451 open timeout on %s", fname);
+
+	if (fp == NULL)
+		return rval;
+
+	if (fstat(fileno(fp), &st) < 0)
+	{
+		rval = errno;
+		syserr("Cannot fstat %s!", fname);
+		return rval;
+	}
+
+	/* if path was writable, check to avoid file giveaway tricks */
+	safechown = chownsafe(fileno(fp), safedir);
+	if (tTd(27, 6))
+		printf("include: parent of %s is %s, chown is %ssafe\n",
+			fname,
+			safedir ? "safe" : "dangerous",
+			safechown ? "" : "un");
+
+	if (ca == NULL && safechown)
+	{
+		ctladdr->q_uid = st.st_uid;
+		ctladdr->q_gid = st.st_gid;
+		ctladdr->q_flags |= QGOODUID;
+	}
+	if (ca != NULL && ca->q_uid == st.st_uid)
+	{
+		/* optimization -- avoid getpwuid if we already have info */
+		ctladdr->q_flags |= ca->q_flags & QBOGUSSHELL;
+		ctladdr->q_ruser = ca->q_ruser;
+	}
+	else if (!forwarding)
+	{
+		register struct passwd *pw;
+
+		pw = sm_getpwuid(st.st_uid);
+		if (pw == NULL)
+			ctladdr->q_flags |= QBOGUSSHELL;
+		else
+		{
+			char *sh;
+
+			ctladdr->q_ruser = newstr(pw->pw_name);
+			if (safechown)
+				sh = pw->pw_shell;
+			else
+				sh = "/SENDMAIL/ANY/SHELL/";
+			if (!usershellok(pw->pw_name, sh))
+			{
+				if (LogLevel >= 12)
+					sm_syslog(LOG_INFO, e->e_id,
+						"%s: user %s has bad shell %s, marked %s",
+						shortenstring(fname, 203),
+						pw->pw_name, sh,
+						safechown ? "bogus" : "unsafe");
+				if (safechown)
+					ctladdr->q_flags |= QBOGUSSHELL;
+				else
+					ctladdr->q_flags |= QUNSAFEADDR;
+			}
+		}
+	}
+
+	if (bitset(EF_VRFYONLY, e->e_flags))
+	{
+		/* don't do any more now */
+		ctladdr->q_flags |= QVERIFIED;
+		e->e_nrcpts++;
+		xfclose(fp, "include", fname);
+		return rval;
+	}
+
+	/*
+	** Check to see if some bad guy can write this file
+	**
+	**	Group write checking could be more clever, e.g.,
+	**	guessing as to which groups are actually safe ("sys"
+	**	may be; "user" probably is not).
+	**	Also, we don't check for writable
+	**	directories in the path.  We've got to leave
+	**	something for the local sysad to do.
+	*/
+
+	if (bitset(S_IWOTH | (UnsafeGroupWrites ? S_IWGRP : 0), st.st_mode))
+	{
+		if (LogLevel >= 12)
+			sm_syslog(LOG_INFO, e->e_id,
+				"%s: %s writable %s file, marked unsafe",
+				shortenstring(fname, 203),
+				bitset(S_IWOTH, st.st_mode) ? "world" : "group",
+				forwarding ? "forward" : ":include:");
+		ctladdr->q_flags |= QUNSAFEADDR;
+	}
+
+	/* read the file -- each line is a comma-separated list. */
+	FileName = fname;
+	LineNumber = 0;
+	ctladdr->q_flags &= ~QSELFREF;
+	nincludes = 0;
+	while (fgets(buf, sizeof buf, fp) != NULL)
+	{
+		register char *p = strchr(buf, '\n');
+
+		LineNumber++;
+		if (p != NULL)
+			*p = '\0';
+		if (buf[0] == '#' || buf[0] == '\0')
+			continue;
+
+		/* <sp>#@# introduces a comment anywhere */
+		/* for Japanese character sets */
+		for (p = buf; (p = strchr(++p, '#')) != NULL; )
+		{
+			if (p[1] == '@' && p[2] == '#' &&
+			    isascii(p[-1]) && isspace(p[-1]) &&
+			    (p[3] == '\0' || (isascii(p[3]) && isspace(p[3]))))
+			{
+				p[-1] = '\0';
+				break;
+			}
+		}
+		if (buf[0] == '\0')
+			continue;
+
+		e->e_to = NULL;
+		message("%s to %s",
+			forwarding ? "forwarding" : "sending", buf);
+		if (forwarding && LogLevel > 9)
+			sm_syslog(LOG_INFO, e->e_id,
+				"forward %.200s => %s",
+				oldto, shortenstring(buf, 203));
+
+		nincludes += sendtolist(buf, ctladdr, sendq, aliaslevel + 1, e);
+	}
+
+	if (ferror(fp) && tTd(27, 3))
+		printf("include: read error: %s\n", errstring(errno));
+	if (nincludes > 0 && !bitset(QSELFREF, ctladdr->q_flags))
+	{
+		if (tTd(27, 5))
+		{
+			printf("include: QDONTSEND ");
+			printaddr(ctladdr, FALSE);
+		}
+		ctladdr->q_flags |= QDONTSEND;
+	}
+
+	(void) xfclose(fp, "include", fname);
+	FileName = oldfilename;
+	LineNumber = oldlinenumber;
+	e->e_to = oldto;
+	return rval;
+}
+
+static void
+includetimeout()
+{
+	longjmp(CtxIncludeTimeout, 1);
+}
+/*
+**  SENDTOARGV -- send to an argument vector.
+**
+**	Parameters:
+**		argv -- argument vector to send to.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		puts all addresses on the argument vector onto the
+**			send queue.
+*/
+
+void
+sendtoargv(argv, e)
+	register char **argv;
+	register ENVELOPE *e;
+{
+	register char *p;
+
+	while ((p = *argv++) != NULL)
+	{
+		(void) sendtolist(p, NULLADDR, &e->e_sendqueue, 0, e);
+	}
+}
+/*
+**  GETCTLADDR -- get controlling address from an address header.
+**
+**	If none, get one corresponding to the effective userid.
+**
+**	Parameters:
+**		a -- the address to find the controller of.
+**
+**	Returns:
+**		the controlling address.
+**
+**	Side Effects:
+**		none.
+*/
+
+ADDRESS *
+getctladdr(a)
+	register ADDRESS *a;
+{
+	while (a != NULL && !bitset(QGOODUID, a->q_flags))
+		a = a->q_alias;
+	return (a);
+}
+/*
+**  SELF_REFERENCE -- check to see if an address references itself
+**
+**	The check is done through a chain of aliases.  If it is part of
+**	a loop, break the loop at the "best" address, that is, the one
+**	that exists as a real user.
+**
+**	This is to handle the case of:
+**		awc:		Andrew.Chang
+**		Andrew.Chang:	awc@mail.server
+**	which is a problem only on mail.server.
+**
+**	Parameters:
+**		a -- the address to check.
+**		e -- the current envelope.
+**
+**	Returns:
+**		The address that should be retained.
+*/
+
+ADDRESS *
+self_reference(a, e)
+	ADDRESS *a;
+	ENVELOPE *e;
+{
+	ADDRESS *b;		/* top entry in self ref loop */
+	ADDRESS *c;		/* entry that point to a real mail box */
+
+	if (tTd(27, 1))
+		printf("self_reference(%s)\n", a->q_paddr);
+
+	for (b = a->q_alias; b != NULL; b = b->q_alias)
+	{
+		if (sameaddr(a, b))
+			break;
+	}
+
+	if (b == NULL)
+	{
+		if (tTd(27, 1))
+			printf("\t... no self ref\n");
+		return NULL;
+	}
+
+	/*
+	**  Pick the first address that resolved to a real mail box
+	**  i.e has a pw entry.  The returned value will be marked
+	**  QSELFREF in recipient(), which in turn will disable alias()
+	**  from marking it QDONTSEND, which mean it will be used
+	**  as a deliverable address.
+	**
+	**  The 2 key thing to note here are:
+	**	1) we are in a recursive call sequence:
+	**		alias->sentolist->recipient->alias
+	**	2) normally, when we return back to alias(), the address
+	**	   will be marked QDONTSEND, since alias() assumes the
+	**	   expanded form will be used instead of the current address.
+	**	   This behaviour is turned off if the address is marked
+	**	   QSELFREF We set QSELFREF when we return to recipient().
+	*/
+
+	c = a;
+	while (c != NULL)
+	{
+		if (bitnset(M_HASPWENT, c->q_mailer->m_flags))
+		{
+			if (tTd(27, 2))
+				printf("\t... getpwnam(%s)... ", c->q_user);
+			if (sm_getpwnam(c->q_user) != NULL)
+			{
+				if (tTd(27, 2))
+					printf("found\n");
+
+				/* ought to cache results here */
+				if (sameaddr(b, c))
+					return b;
+				else
+					return c;
+			}
+			if (tTd(27, 2))
+				printf("failed\n");
+		}
+		c = c->q_alias;
+	}
+
+	if (tTd(27, 1))
+		printf("\t... cannot break loop for \"%s\"\n", a->q_paddr);
+
+	return NULL;
+}
diff --git a/src/safefile.c b/src/safefile.c
new file mode 100644
index 0000000..842a09f
--- /dev/null
+++ b/src/safefile.c
@@ -0,0 +1,712 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)safefile.c	8.18 (Berkeley) 8/1/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+/*
+**  SAFEFILE -- return true if a file exists and is safe for a user.
+**
+**	Parameters:
+**		fn -- filename to check.
+**		uid -- user id to compare against.
+**		gid -- group id to compare against.
+**		uname -- user name to compare against (used for group
+**			sets).
+**		flags -- modifiers:
+**			SFF_MUSTOWN -- "uid" must own this file.
+**			SFF_NOSLINK -- file cannot be a symbolic link.
+**		mode -- mode bits that must match.
+**		st -- if set, points to a stat structure that will
+**			get the stat info for the file.
+**
+**	Returns:
+**		0 if fn exists, is owned by uid, and matches mode.
+**		An errno otherwise.  The actual errno is cleared.
+**
+**	Side Effects:
+**		none.
+*/
+
+#include <grp.h>
+
+#ifndef S_IXOTH
+# define S_IXOTH	(S_IEXEC >> 6)
+#endif
+
+#ifndef S_IXGRP
+# define S_IXGRP	(S_IEXEC >> 3)
+#endif
+
+#ifndef S_IXUSR
+# define S_IXUSR	(S_IEXEC)
+#endif
+
+int
+safefile(fn, uid, gid, uname, flags, mode, st)
+	char *fn;
+	UID_T uid;
+	GID_T gid;
+	char *uname;
+	int flags;
+	int mode;
+	struct stat *st;
+{
+	register char *p;
+	register struct group *gr = NULL;
+	int file_errno = 0;
+	bool checkpath;
+	struct stat stbuf;
+	struct stat fstbuf;
+	char fbuf[MAXPATHLEN + 1];
+
+	if (tTd(44, 4))
+		printf("safefile(%s, uid=%d, gid=%d, flags=%x, mode=%o):\n",
+			fn, (int) uid, (int) gid, flags, mode);
+	errno = 0;
+	if (st == NULL)
+		st = &fstbuf;
+	if (strlen(fn) > sizeof fbuf - 1)
+	{
+		if (tTd(44, 4))
+			printf("\tpathname too long\n");
+		return ENAMETOOLONG;
+	}
+	strcpy(fbuf, fn);
+	fn = fbuf;
+
+	/* ignore SFF_SAFEDIRPATH if we are debugging */
+	if (RealUid != 0 && RunAsUid == RealUid)
+		flags &= ~SFF_SAFEDIRPATH;
+
+	/* first check to see if the file exists at all */
+#ifdef HASLSTAT
+	if ((bitset(SFF_NOSLINK, flags) ? lstat(fn, st)
+					: stat(fn, st)) < 0)
+#else
+	if (stat(fn, st) < 0)
+#endif
+	{
+		file_errno = errno;
+	}
+	else if (bitset(SFF_SETUIDOK, flags) &&
+		 !bitset(S_IXUSR|S_IXGRP|S_IXOTH, st->st_mode) &&
+		 S_ISREG(st->st_mode))
+	{
+		/*
+		**  If final file is setuid, run as the owner of that
+		**  file.  Gotta be careful not to reveal anything too
+		**  soon here!
+		*/
+
+#ifdef SUID_ROOT_FILES_OK
+		if (bitset(S_ISUID, st->st_mode))
+#else
+		if (bitset(S_ISUID, st->st_mode) && st->st_uid != 0)
+#endif
+		{
+			uid = st->st_uid;
+			uname = NULL;
+		}
+#ifdef SUID_ROOT_FILES_OK
+		if (bitset(S_ISGID, st->st_mode))
+#else
+		if (bitset(S_ISGID, st->st_mode) && st->st_gid != 0)
+#endif
+			gid = st->st_gid;
+	}
+
+	checkpath = !bitset(SFF_NOPATHCHECK, flags) ||
+		    (uid == 0 && !bitset(SFF_ROOTOK|SFF_OPENASROOT, flags));
+	if (bitset(SFF_NOWLINK, flags) && !bitset(SFF_SAFEDIRPATH, flags))
+	{
+		int ret;
+
+		/* check the directory */
+		p = strrchr(fn, '/');
+		if (p == NULL)
+		{
+			ret = safedirpath(".", uid, gid, uname, flags|SFF_SAFEDIRPATH);
+		}
+		else
+		{
+			*p = '\0';
+			ret = safedirpath(fn, uid, gid, uname, flags|SFF_SAFEDIRPATH);
+			*p = '/';
+		}
+		if (ret == 0)
+		{
+			/* directory is safe */
+			checkpath = FALSE;
+		}
+		else
+		{
+			/* directory is writable: disallow links */
+			flags |= SFF_NOLINK;
+		}
+	}
+
+	if (checkpath)
+	{
+		int ret;
+
+		p = strrchr(fn, '/');
+		if (p == NULL)
+		{
+			ret = safedirpath(".", uid, gid, uname, flags);
+		}
+		else
+		{
+			*p = '\0';
+			ret = safedirpath(fn, uid, gid, uname, flags);
+			*p = '/';
+		}
+		if (ret != 0)
+			return ret;
+	}
+
+	/*
+	**  If the target file doesn't exist, check the directory to
+	**  ensure that it is writable by this user.
+	*/
+
+	if (file_errno != 0)
+	{
+		int ret = file_errno;
+		char *dir = fn;
+
+		if (tTd(44, 4))
+			printf("\t%s\n", errstring(ret));
+
+		errno = 0;
+		if (!bitset(SFF_CREAT, flags) || file_errno != ENOENT)
+			return ret;
+
+		/* check to see if legal to create the file */
+		p = strrchr(dir, '/');
+		if (p == NULL)
+			dir = ".";
+		else if (p == dir)
+			dir = "/";
+		else
+			*p = '\0';
+		if (stat(dir, &stbuf) >= 0)
+		{
+			int md = S_IWRITE|S_IEXEC;
+			if (stbuf.st_uid != uid)
+				md >>= 6;
+			if ((stbuf.st_mode & md) != md)
+				errno = EACCES;
+		}
+		ret = errno;
+		if (tTd(44, 4))
+			printf("\t[final dir %s uid %d mode %lo] %s\n",
+				dir, (int) stbuf.st_uid, (u_long) stbuf.st_mode,
+				errstring(ret));
+		if (p != NULL)
+			*p = '/';
+		st->st_mode = ST_MODE_NOFILE;
+		return ret;
+	}
+
+#ifdef S_ISLNK
+	if (bitset(SFF_NOSLINK, flags) && S_ISLNK(st->st_mode))
+	{
+		if (tTd(44, 4))
+			printf("\t[slink mode %o]\tE_SM_NOSLINK\n",
+				st->st_mode);
+		return E_SM_NOSLINK;
+	}
+#endif
+	if (bitset(SFF_REGONLY, flags) && !S_ISREG(st->st_mode))
+	{
+		if (tTd(44, 4))
+			printf("\t[non-reg mode %o]\tE_SM_REGONLY\n",
+				st->st_mode);
+		return E_SM_REGONLY;
+	}
+	if (bitset(SFF_NOWFILES, flags) &&
+	    bitset(S_IWOTH | (UnsafeGroupWrites ? S_IWGRP : 0), st->st_mode))
+	{
+		if (tTd(44, 4))
+			printf("\t[write bits %o]\tE_SM_%cWFILE\n",
+				st->st_mode,
+				bitset(S_IWOTH, st->st_mode) ? 'W' : 'G');
+		return bitset(S_IWOTH, st->st_mode) ? E_SM_WWFILE : E_SM_GWFILE;
+	}
+	if (bitset(S_IWUSR|S_IWGRP|S_IWOTH, mode) &&
+	    bitset(S_IXUSR|S_IXGRP|S_IXOTH, st->st_mode))
+	{
+		if (tTd(44, 4))
+			printf("\t[exec bits %o]\tE_SM_ISEXEC]\n",
+				st->st_mode);
+		return E_SM_ISEXEC;
+	}
+	if (bitset(SFF_NOHLINK, flags) && st->st_nlink != 1)
+	{
+		if (tTd(44, 4))
+			printf("\t[link count %d]\tE_SM_NOHLINK\n",
+				st->st_nlink);
+		return E_SM_NOHLINK;
+	}
+
+	if (uid == 0 && bitset(SFF_OPENASROOT, flags))
+		;
+	else if (uid == 0 && !bitset(SFF_ROOTOK, flags))
+		mode >>= 6;
+	else if (st->st_uid != uid)
+	{
+		mode >>= 3;
+		if (st->st_gid == gid)
+			;
+#ifndef NO_GROUP_SET
+		else if (uname != NULL && !DontInitGroups &&
+			 ((gr != NULL && gr->gr_gid == st->st_gid) ||
+			  (gr = getgrgid(st->st_gid)) != NULL))
+		{
+			register char **gp;
+
+			for (gp = gr->gr_mem; *gp != NULL; gp++)
+				if (strcmp(*gp, uname) == 0)
+					break;
+			if (*gp == NULL)
+				mode >>= 3;
+		}
+#endif
+		else
+			mode >>= 3;
+	}
+	if (tTd(44, 4))
+		printf("\t[uid %d, nlink %d, stat %lo, mode %lo] ",
+			(int) st->st_uid, (int) st->st_nlink,
+			(u_long) st->st_mode, (u_long) mode);
+	if ((st->st_uid == uid || st->st_uid == 0 ||
+	     !bitset(SFF_MUSTOWN, flags)) &&
+	    (st->st_mode & mode) == mode)
+	{
+		if (tTd(44, 4))
+			printf("\tOK\n");
+		return 0;
+	}
+	if (tTd(44, 4))
+		printf("\tEACCES\n");
+	return EACCES;
+}
+/*
+**  SAFEDIRPATH -- check to make sure a path to a directory is safe
+**
+**	Safe means not writable and owned by the right folks.
+**
+**	Parameters:
+**		fn -- filename to check.
+**		uid -- user id to compare against.
+**		gid -- group id to compare against.
+**		uname -- user name to compare against (used for group
+**			sets).
+**		flags -- modifiers:
+**			SFF_ROOTOK -- ok to use root permissions to open.
+**			SFF_SAFEDIRPATH -- writable directories are considered
+**				to be fatal errors.
+**
+**	Returns:
+**		0 -- if the directory path is "safe".
+**		else -- an error number associated with the path.
+*/
+
+int
+safedirpath(fn, uid, gid, uname, flags)
+	char *fn;
+	UID_T uid;
+	GID_T gid;
+	char *uname;
+	int flags;
+{
+	char *p;
+	register struct group *gr = NULL;
+	int ret = 0;
+	struct stat stbuf;
+
+	/* special case root directory */
+	if (*fn == '\0')
+		fn = "/";
+
+	if (tTd(44, 4))
+		printf("safedirpath(%s, uid=%ld, gid=%ld, flags=%x):\n",
+			fn, (long) uid, (long) gid, flags);
+
+	p = fn;
+	do
+	{
+		if (*p == '\0')
+			*p = '/';
+		p = strchr(++p, '/');
+		if (p != NULL)
+			*p = '\0';
+		if (stat(fn, &stbuf) < 0)
+		{
+			ret = errno;
+			break;
+		}
+		if ((uid == 0 || bitset(SFF_SAFEDIRPATH, flags)) &&
+		    bitset(S_IWGRP|S_IWOTH, stbuf.st_mode))
+		{
+			if (tTd(44, 4))
+				printf("\t[dir %s] mode %o\n",
+					fn, stbuf.st_mode);
+			if (bitset(SFF_SAFEDIRPATH, flags))
+			{
+				if (bitset(S_IWOTH, stbuf.st_mode))
+					ret = E_SM_WWDIR;
+				else
+					ret = E_SM_GWDIR;
+				break;
+			}
+			if (Verbose > 1)
+				message("051 WARNING: writable directory %s", fn);
+		}
+		if (uid == 0 && !bitset(SFF_ROOTOK|SFF_OPENASROOT, flags))
+		{
+			if (bitset(S_IXOTH, stbuf.st_mode))
+				continue;
+			ret = EACCES;
+			break;
+		}
+		if (stbuf.st_uid == uid &&
+		    bitset(S_IXUSR, stbuf.st_mode))
+			continue;
+		if (stbuf.st_gid == gid &&
+		    bitset(S_IXGRP, stbuf.st_mode))
+			continue;
+#ifndef NO_GROUP_SET
+		if (uname != NULL && !DontInitGroups &&
+		    ((gr != NULL && gr->gr_gid == stbuf.st_gid) ||
+		     (gr = getgrgid(stbuf.st_gid)) != NULL))
+		{
+			register char **gp;
+
+			for (gp = gr->gr_mem; gp != NULL && *gp != NULL; gp++)
+				if (strcmp(*gp, uname) == 0)
+					break;
+			if (gp != NULL && *gp != NULL &&
+			    bitset(S_IXGRP, stbuf.st_mode))
+				continue;
+		}
+#endif
+		if (!bitset(S_IXOTH, stbuf.st_mode))
+		{
+			ret = EACCES;
+			break;
+		}
+	} while (p != NULL);
+	if (ret != 0 && tTd(44, 4))
+		printf("\t[dir %s] %s\n", fn, errstring(ret));
+	if (p != NULL)
+		*p = '/';
+	return ret;
+}
+/*
+**  SAFEOPEN -- do a file open with extra checking
+**
+**	Parameters:
+**		fn -- the file name to open.
+**		omode -- the open-style mode flags.
+**		cmode -- the create-style mode flags.
+**		sff -- safefile flags.
+**
+**	Returns:
+**		Same as open.
+*/
+
+#ifndef O_ACCMODE
+# define O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
+#endif
+
+int
+safeopen(fn, omode, cmode, sff)
+	char *fn;
+	int omode;
+	int cmode;
+	int sff;
+{
+	int rval;
+	int fd;
+	int smode;
+	struct stat stb;
+
+	if (bitset(O_CREAT, omode))
+		sff |= SFF_CREAT;
+	omode &= ~O_CREAT;
+	smode = 0;
+	switch (omode & O_ACCMODE)
+	{
+	  case O_RDONLY:
+		smode = S_IREAD;
+		break;
+
+	  case O_WRONLY:
+		smode = S_IWRITE;
+		break;
+
+	  case O_RDWR:
+		smode = S_IREAD|S_IWRITE;
+		break;
+
+	  default:
+		smode = 0;
+		break;
+	}
+	if (bitset(SFF_OPENASROOT, sff))
+		rval = safefile(fn, RunAsUid, RunAsGid, RunAsUserName,
+				sff, smode, &stb);
+	else
+		rval = safefile(fn, RealUid, RealGid, RealUserName,
+				sff, smode, &stb);
+	if (rval != 0)
+	{
+		errno = rval;
+		return -1;
+	}
+	if (stb.st_mode == ST_MODE_NOFILE && bitset(SFF_CREAT, sff))
+		omode |= O_EXCL|O_CREAT;
+
+	fd = dfopen(fn, omode, cmode, sff);
+	if (fd < 0)
+		return fd;
+	if (filechanged(fn, fd, &stb, sff))
+	{
+		syserr("554 cannot open: file %s changed after open", fn);
+		close(fd);
+		errno = E_SM_FILECHANGE;
+		return -1;
+	}
+	return fd;
+}
+/*
+**  SAFEFOPEN -- do a file open with extra checking
+**
+**	Parameters:
+**		fn -- the file name to open.
+**		omode -- the open-style mode flags.
+**		cmode -- the create-style mode flags.
+**		sff -- safefile flags.
+**
+**	Returns:
+**		Same as fopen.
+*/
+
+FILE *
+safefopen(fn, omode, cmode, sff)
+	char *fn;
+	int omode;
+	int cmode;
+	int sff;
+{
+	int fd;
+	FILE *fp;
+	char *fmode;
+
+	switch (omode & O_ACCMODE)
+	{
+	  case O_RDONLY:
+		fmode = "r";
+		break;
+
+	  case O_WRONLY:
+		if (bitset(O_APPEND, omode))
+			fmode = "a";
+		else
+			fmode = "w";
+		break;
+
+	  case O_RDWR:
+		if (bitset(O_TRUNC, omode))
+			fmode = "w+";
+		else if (bitset(O_APPEND, omode))
+			fmode = "a+";
+		else
+			fmode = "r+";
+		break;
+
+	  default:
+		syserr("safefopen: unknown omode %o", omode);
+		fmode = "x";
+	}
+	fd = safeopen(fn, omode, cmode, sff);
+	if (fd < 0)
+	{
+		if (tTd(44, 10))
+			printf("safefopen: safeopen failed: %s\n",
+				errstring(errno));
+		return NULL;
+	}
+	fp = fdopen(fd, fmode);
+	if (fp != NULL)
+		return fp;
+
+	if (tTd(44, 10))
+	{
+		printf("safefopen: fdopen(%s, %s) failed: omode=%x, sff=%x, err=%s\n",
+			fn, fmode, omode, sff, errstring(errno));
+#ifndef NOT_SENDMAIL
+		dumpfd(fd, TRUE, FALSE);
+#endif
+	}
+	(void) close(fd);
+	return NULL;
+}
+/*
+**  FILECHANGED -- check to see if file changed after being opened
+**
+**	Parameters:
+**		fn -- pathname of file to check.
+**		fd -- file descriptor to check.
+**		stb -- stat structure from before open.
+**		sff -- safe file flags.
+**
+**	Returns:
+**		TRUE -- if a problem was detected.
+**		FALSE -- if this file is still the same.
+*/
+
+bool
+filechanged(fn, fd, stb, sff)
+	char *fn;
+	int fd;
+	struct stat *stb;
+	int sff;
+{
+	struct stat sta;
+
+	if (stb->st_mode == ST_MODE_NOFILE)
+	{
+#if HASLSTAT && BOGUS_O_EXCL
+		/* only necessary if exclusive open follows symbolic links */
+		if (lstat(fn, stb) < 0 || stb->st_nlink != 1)
+			return TRUE;
+#else
+		return FALSE;
+#endif
+	}
+	if (fstat(fd, &sta) < 0)
+		return TRUE;
+
+	if (sta.st_nlink != stb->st_nlink ||
+	    sta.st_dev != stb->st_dev ||
+	    sta.st_ino != stb->st_ino ||
+#if HAS_ST_GEN && 0		/* AFS returns garbage in st_gen */
+	    sta.st_gen != stb->st_gen ||
+#endif
+	    sta.st_uid != stb->st_uid ||
+	    sta.st_gid != stb->st_gid)
+	{
+		if (tTd(44, 8))
+		{
+			printf("File changed after opening:\n");
+			printf(" nlink	= %ld/%ld\n",
+				(long) stb->st_nlink, (long) sta.st_nlink);
+			printf(" dev	= %ld/%ld\n",
+				(long) stb->st_dev, (long) sta.st_dev);
+			printf(" ino	= %ld/%ld\n",
+				(long) stb->st_ino, (long) sta.st_ino);
+#if HAS_ST_GEN
+			printf(" gen	= %ld/%ld\n",
+				(long) stb->st_gen, (long) sta.st_gen);
+#endif
+			printf(" uid	= %ld/%ld\n",
+				(long) stb->st_uid, (long) sta.st_uid);
+			printf(" gid	= %ld/%ld\n",
+				(long) stb->st_gid, (long) sta.st_gid);
+		}
+		return TRUE;
+	}
+
+	return FALSE;
+}
+/*
+**  DFOPEN -- determined file open
+**
+**	This routine has the semantics of open, except that it will
+**	keep trying a few times to make this happen.  The idea is that
+**	on very loaded systems, we may run out of resources (inodes,
+**	whatever), so this tries to get around it.
+*/
+
+int
+dfopen(filename, omode, cmode, sff)
+	char *filename;
+	int omode;
+	int cmode;
+	int sff;
+{
+	register int tries;
+	int fd;
+	struct stat st;
+
+	for (tries = 0; tries < 10; tries++)
+	{
+		sleep((unsigned) (10 * tries));
+		errno = 0;
+		fd = open(filename, omode, cmode);
+		if (fd >= 0)
+			break;
+		switch (errno)
+		{
+		  case ENFILE:		/* system file table full */
+		  case EINTR:		/* interrupted syscall */
+#ifdef ETXTBSY
+		  case ETXTBSY:		/* Apollo: net file locked */
+#endif
+			continue;
+		}
+		break;
+	}
+	if (!bitset(SFF_NOLOCK, sff) &&
+	    fd >= 0 &&
+	    fstat(fd, &st) >= 0 &&
+	    S_ISREG(st.st_mode))
+	{
+		int locktype;
+
+		/* lock the file to avoid accidental conflicts */
+		if ((omode & O_ACCMODE) != O_RDONLY)
+			locktype = LOCK_EX;
+		else
+			locktype = LOCK_SH;
+		(void) lockfile(fd, filename, NULL, locktype);
+		errno = 0;
+	}
+	return fd;
+}
diff --git a/src/savemail.c b/src/savemail.c
new file mode 100644
index 0000000..76209dc
--- /dev/null
+++ b/src/savemail.c
@@ -0,0 +1,1502 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)savemail.c	8.121 (Berkeley) 10/22/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+/*
+**  SAVEMAIL -- Save mail on error
+**
+**	If mailing back errors, mail it back to the originator
+**	together with an error message; otherwise, just put it in
+**	dead.letter in the user's home directory (if he exists on
+**	this machine).
+**
+**	Parameters:
+**		e -- the envelope containing the message in error.
+**		sendbody -- if TRUE, also send back the body of the
+**			message; otherwise just send the header.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		Saves the letter, by writing or mailing it back to the
+**		sender, or by putting it in dead.letter in her home
+**		directory.
+*/
+
+/* defines for state machine */
+# define ESM_REPORT	0	/* report to sender's terminal */
+# define ESM_MAIL	1	/* mail back to sender */
+# define ESM_QUIET	2	/* messages have already been returned */
+# define ESM_DEADLETTER	3	/* save in ~/dead.letter */
+# define ESM_POSTMASTER	4	/* return to postmaster */
+# define ESM_USRTMP	5	/* save in /usr/tmp/dead.letter */
+# define ESM_PANIC	6	/* leave the locked queue/transcript files */
+# define ESM_DONE	7	/* the message is successfully delivered */
+
+
+void
+savemail(e, sendbody)
+	register ENVELOPE *e;
+	bool sendbody;
+{
+	register struct passwd *pw;
+	register FILE *fp;
+	int state;
+	auto ADDRESS *q = NULL;
+	register char *p;
+	MCI mcibuf;
+	int flags;
+	char buf[MAXLINE+1];
+	extern char *ttypath();
+	extern bool writable();
+
+	if (tTd(6, 1))
+	{
+		printf("\nsavemail, errormode = %c, id = %s, ExitStat = %d\n  e_from=",
+			e->e_errormode, e->e_id == NULL ? "NONE" : e->e_id,
+			ExitStat);
+		printaddr(&e->e_from, FALSE);
+	}
+
+	if (e->e_id == NULL)
+	{
+		/* can't return a message with no id */
+		return;
+	}
+
+	/*
+	**  In the unhappy event we don't know who to return the mail
+	**  to, make someone up.
+	*/
+
+	if (e->e_from.q_paddr == NULL)
+	{
+		e->e_sender = "Postmaster";
+		if (parseaddr(e->e_sender, &e->e_from,
+			      RF_COPYPARSE|RF_SENDERADDR, '\0', NULL, e) == NULL)
+		{
+			syserr("553 Cannot parse Postmaster!");
+			ExitStat = EX_SOFTWARE;
+			finis();
+		}
+	}
+	e->e_to = NULL;
+
+	/*
+	**  Basic state machine.
+	**
+	**	This machine runs through the following states:
+	**
+	**	ESM_QUIET	Errors have already been printed iff the
+	**			sender is local.
+	**	ESM_REPORT	Report directly to the sender's terminal.
+	**	ESM_MAIL	Mail response to the sender.
+	**	ESM_DEADLETTER	Save response in ~/dead.letter.
+	**	ESM_POSTMASTER	Mail response to the postmaster.
+	**	ESM_PANIC	Save response anywhere possible.
+	*/
+
+	/* determine starting state */
+	switch (e->e_errormode)
+	{
+	  case EM_WRITE:
+		state = ESM_REPORT;
+		break;
+
+	  case EM_BERKNET:
+	  case EM_MAIL:
+		state = ESM_MAIL;
+		break;
+
+	  case EM_PRINT:
+	  case '\0':
+		state = ESM_QUIET;
+		break;
+
+	  case EM_QUIET:
+		/* no need to return anything at all */
+		return;
+
+	  default:
+		syserr("554 savemail: bogus errormode x%x\n", e->e_errormode);
+		state = ESM_MAIL;
+		break;
+	}
+
+	/* if this is already an error response, send to postmaster */
+	if (bitset(EF_RESPONSE, e->e_flags))
+	{
+		if (e->e_parent != NULL &&
+		    bitset(EF_RESPONSE, e->e_parent->e_flags))
+		{
+			/* got an error sending a response -- can it */
+			return;
+		}
+		state = ESM_POSTMASTER;
+	}
+
+	while (state != ESM_DONE)
+	{
+		if (tTd(6, 5))
+			printf("  state %d\n", state);
+
+		switch (state)
+		{
+		  case ESM_QUIET:
+			if (bitnset(M_LOCALMAILER, e->e_from.q_mailer->m_flags))
+				state = ESM_DEADLETTER;
+			else
+				state = ESM_MAIL;
+			break;
+
+		  case ESM_REPORT:
+
+			/*
+			**  If the user is still logged in on the same terminal,
+			**  then write the error messages back to hir (sic).
+			*/
+
+			p = ttypath();
+			if (p == NULL || freopen(p, "w", stdout) == NULL)
+			{
+				state = ESM_MAIL;
+				break;
+			}
+
+			expand("\201n", buf, sizeof buf, e);
+			printf("\r\nMessage from %s...\r\n", buf);
+			printf("Errors occurred while sending mail.\r\n");
+			if (e->e_xfp != NULL)
+			{
+				(void) fflush(e->e_xfp);
+				fp = fopen(queuename(e, 'x'), "r");
+			}
+			else
+				fp = NULL;
+			if (fp == NULL)
+			{
+				syserr("Cannot open %s", queuename(e, 'x'));
+				printf("Transcript of session is unavailable.\r\n");
+			}
+			else
+			{
+				printf("Transcript follows:\r\n");
+				while (fgets(buf, sizeof buf, fp) != NULL &&
+				       !ferror(stdout))
+					fputs(buf, stdout);
+				(void) xfclose(fp, "savemail transcript", e->e_id);
+			}
+			printf("Original message will be saved in dead.letter.\r\n");
+			state = ESM_DEADLETTER;
+			break;
+
+		  case ESM_MAIL:
+			/*
+			**  If mailing back, do it.
+			**	Throw away all further output.  Don't alias,
+			**	since this could cause loops, e.g., if joe
+			**	mails to joe@x, and for some reason the network
+			**	for @x is down, then the response gets sent to
+			**	joe@x, which gives a response, etc.  Also force
+			**	the mail to be delivered even if a version of
+			**	it has already been sent to the sender.
+			**
+			**  If this is a configuration or local software
+			**	error, send to the local postmaster as well,
+			**	since the originator can't do anything
+			**	about it anyway.  Note that this is a full
+			**	copy of the message (intentionally) so that
+			**	the Postmaster can forward things along.
+			*/
+
+			if (ExitStat == EX_CONFIG || ExitStat == EX_SOFTWARE)
+			{
+				(void) sendtolist("postmaster",
+					  NULLADDR, &e->e_errorqueue, 0, e);
+			}
+			if (!emptyaddr(&e->e_from))
+			{
+				char from[TOBUFSIZE];
+				extern bool pruneroute __P((char *));
+
+				if (strlen(e->e_from.q_paddr) + 1 > sizeof from)
+				{
+					state = ESM_POSTMASTER;
+					break;
+				}
+				strcpy(from, e->e_from.q_paddr);
+
+				if (!DontPruneRoutes && pruneroute(from))
+				{
+					ADDRESS *a;
+
+					for (a = e->e_errorqueue; a != NULL;
+					     a = a->q_next)
+					{
+						if (sameaddr(a, &e->e_from))
+							a->q_flags |= QDONTSEND;
+					}
+				}
+				(void) sendtolist(from, NULLADDR,
+						  &e->e_errorqueue, 0, e);
+			}
+
+			/*
+			**  Deliver a non-delivery report to the
+			**  Postmaster-designate (not necessarily
+			**  Postmaster).  This does not include the
+			**  body of the message, for privacy reasons.
+			**  You really shouldn't need this.
+			*/
+
+			e->e_flags |= EF_PM_NOTIFY;
+
+			/* check to see if there are any good addresses */
+			for (q = e->e_errorqueue; q != NULL; q = q->q_next)
+				if (!bitset(QBADADDR|QDONTSEND, q->q_flags))
+					break;
+			if (q == NULL)
+			{
+				/* this is an error-error */
+				state = ESM_POSTMASTER;
+				break;
+			}
+			if (returntosender(e->e_message, e->e_errorqueue,
+					   sendbody ? RTSF_SEND_BODY
+						    : RTSF_NO_BODY,
+					   e) == 0)
+			{
+				state = ESM_DONE;
+				break;
+			}
+
+			/* didn't work -- return to postmaster */
+			state = ESM_POSTMASTER;
+			break;
+
+		  case ESM_POSTMASTER:
+			/*
+			**  Similar to previous case, but to system postmaster.
+			*/
+
+			q = NULL;
+			if (sendtolist(DoubleBounceAddr,
+				NULLADDR, &q, 0, e) <= 0)
+			{
+				syserr("553 cannot parse %s!", DoubleBounceAddr);
+				ExitStat = EX_SOFTWARE;
+				state = ESM_USRTMP;
+				break;
+			}
+			flags = RTSF_PM_BOUNCE;
+			if (sendbody)
+				flags |= RTSF_SEND_BODY;
+			if (returntosender(e->e_message, q, flags, e) == 0)
+			{
+				state = ESM_DONE;
+				break;
+			}
+
+			/* didn't work -- last resort */
+			state = ESM_USRTMP;
+			break;
+
+		  case ESM_DEADLETTER:
+			/*
+			**  Save the message in dead.letter.
+			**	If we weren't mailing back, and the user is
+			**	local, we should save the message in
+			**	~/dead.letter so that the poor person doesn't
+			**	have to type it over again -- and we all know
+			**	what poor typists UNIX users are.
+			*/
+
+			p = NULL;
+			if (bitnset(M_HASPWENT, e->e_from.q_mailer->m_flags))
+			{
+				if (e->e_from.q_home != NULL)
+					p = e->e_from.q_home;
+				else if ((pw = sm_getpwnam(e->e_from.q_user)) != NULL)
+					p = pw->pw_dir;
+			}
+			if (p == NULL || e->e_dfp == NULL)
+			{
+				/* no local directory or no data file */
+				state = ESM_MAIL;
+				break;
+			}
+
+			/* we have a home directory; write dead.letter */
+			define('z', p, e);
+			expand("\201z/dead.letter", buf, sizeof buf, e);
+			flags = SFF_NOLINK|SFF_CREAT|SFF_REGONLY|SFF_RUNASREALUID;
+			e->e_to = buf;
+			if (mailfile(buf, NULL, flags, e) == EX_OK)
+			{
+				int oldverb = Verbose;
+
+				Verbose = 1;
+				message("Saved message in %s", buf);
+				Verbose = oldverb;
+				state = ESM_DONE;
+				break;
+			}
+			state = ESM_MAIL;
+			break;
+
+		  case ESM_USRTMP:
+			/*
+			**  Log the mail in /usr/tmp/dead.letter.
+			*/
+
+			if (e->e_class < 0)
+			{
+				state = ESM_DONE;
+				break;
+			}
+
+			if ((SafeFileEnv != NULL && SafeFileEnv[0] != '\0') ||
+			    DeadLetterDrop == NULL || DeadLetterDrop[0] == '\0')
+			{
+				state = ESM_PANIC;
+				break;
+			}
+
+			flags = SFF_NOLINK|SFF_CREAT|SFF_REGONLY|SFF_ROOTOK|SFF_OPENASROOT|SFF_MUSTOWN;
+			if (!writable(DeadLetterDrop, NULL, flags) ||
+			    (fp = safefopen(DeadLetterDrop, O_WRONLY|O_APPEND,
+					    FileMode, flags)) == NULL)
+			{
+				state = ESM_PANIC;
+				break;
+			}
+
+			bzero(&mcibuf, sizeof mcibuf);
+			mcibuf.mci_out = fp;
+			mcibuf.mci_mailer = FileMailer;
+			if (bitnset(M_7BITS, FileMailer->m_flags))
+				mcibuf.mci_flags |= MCIF_7BIT;
+
+			putfromline(&mcibuf, e);
+			(*e->e_puthdr)(&mcibuf, e->e_header, e);
+			(*e->e_putbody)(&mcibuf, e, NULL);
+			putline("\n", &mcibuf);
+			(void) fflush(fp);
+			if (ferror(fp))
+				state = ESM_PANIC;
+			else
+			{
+				int oldverb = Verbose;
+
+				Verbose = 1;
+				message("Saved message in %s", DeadLetterDrop);
+				Verbose = oldverb;
+				if (LogLevel > 3)
+					sm_syslog(LOG_NOTICE, e->e_id,
+						"Saved message in %s",
+						DeadLetterDrop);
+				state = ESM_DONE;
+			}
+			(void) xfclose(fp, "savemail", DeadLetterDrop);
+			break;
+
+		  default:
+			syserr("554 savemail: unknown state %d", state);
+
+			/* fall through ... */
+
+		  case ESM_PANIC:
+			/* leave the locked queue & transcript files around */
+			loseqfile(e, "savemail panic");
+			syserr("!554 savemail: cannot save rejected email anywhere");
+		}
+	}
+}
+/*
+**  RETURNTOSENDER -- return a message to the sender with an error.
+**
+**	Parameters:
+**		msg -- the explanatory message.
+**		returnq -- the queue of people to send the message to.
+**		flags -- flags tweaking the operation:
+**			RTSF_SENDBODY -- include body of message (otherwise
+**				just send the header).
+**			RTSF_PMBOUNCE -- this is a postmaster bounce.
+**		e -- the current envelope.
+**
+**	Returns:
+**		zero -- if everything went ok.
+**		else -- some error.
+**
+**	Side Effects:
+**		Returns the current message to the sender via
+**		mail.
+*/
+
+#define MAXRETURNS	6	/* max depth of returning messages */
+#define ERRORFUDGE	100	/* nominal size of error message text */
+
+int
+returntosender(msg, returnq, flags, e)
+	char *msg;
+	ADDRESS *returnq;
+	int flags;
+	register ENVELOPE *e;
+{
+	register ENVELOPE *ee;
+	ENVELOPE *oldcur = CurEnv;
+	ENVELOPE errenvelope;
+	static int returndepth;
+	register ADDRESS *q;
+	char *p;
+	char buf[MAXNAME + 1];
+	extern void errbody __P((MCI *, ENVELOPE *, char *));
+
+	if (returnq == NULL)
+		return (-1);
+
+	if (msg == NULL)
+		msg = "Unable to deliver mail";
+
+	if (tTd(6, 1))
+	{
+		printf("\n*** Return To Sender: msg=\"%s\", depth=%d, e=%lx, returnq=",
+		       msg, returndepth, (u_long) e);
+		printaddr(returnq, TRUE);
+		if (tTd(6, 20))
+		{
+			printf("Sendq=");
+			printaddr(e->e_sendqueue, TRUE);
+		}
+	}
+
+	if (++returndepth >= MAXRETURNS)
+	{
+		if (returndepth != MAXRETURNS)
+			syserr("554 returntosender: infinite recursion on %s", returnq->q_paddr);
+		/* don't "unrecurse" and fake a clean exit */
+		/* returndepth--; */
+		return (0);
+	}
+
+	define('g', e->e_from.q_paddr, e);
+	define('u', NULL, e);
+
+	/* initialize error envelope */
+	ee = newenvelope(&errenvelope, e);
+	define('a', "\201b", ee);
+	define('r', "internal", ee);
+	define('s', "localhost", ee);
+	define('_', "localhost", ee);
+	ee->e_puthdr = putheader;
+	ee->e_putbody = errbody;
+	ee->e_flags |= EF_RESPONSE|EF_METOO;
+	if (!bitset(EF_OLDSTYLE, e->e_flags))
+		ee->e_flags &= ~EF_OLDSTYLE;
+	ee->e_sendqueue = returnq;
+	ee->e_msgsize = ERRORFUDGE;
+	if (bitset(RTSF_SEND_BODY, flags))
+		ee->e_msgsize += e->e_msgsize;
+	else
+		ee->e_flags |= EF_NO_BODY_RETN;
+	initsys(ee);
+	for (q = returnq; q != NULL; q = q->q_next)
+	{
+		if (bitset(QBADADDR, q->q_flags))
+			continue;
+
+		q->q_flags &= ~(QHASNOTIFY|Q_PINGFLAGS);
+		q->q_flags |= QPINGONFAILURE;
+
+		if (!bitset(QDONTSEND, q->q_flags))
+			ee->e_nrcpts++;
+
+		if (q->q_alias == NULL)
+			addheader("To", q->q_paddr, &ee->e_header);
+	}
+
+	if (LogLevel > 5)
+	{
+		if (bitset(EF_RESPONSE|EF_WARNING, e->e_flags))
+			p = "return to sender";
+		else if (bitset(RTSF_PM_BOUNCE, flags))
+			p = "postmaster notify";
+		else
+			p = "DSN";
+		sm_syslog(LOG_INFO, e->e_id,
+			"%s: %s: %s",
+			ee->e_id, p, shortenstring(msg, 203));
+	}
+
+	if (SendMIMEErrors)
+	{
+		addheader("MIME-Version", "1.0", &ee->e_header);
+
+		(void) snprintf(buf, sizeof buf, "%s.%ld/%.100s",
+			ee->e_id, curtime(), MyHostName);
+		ee->e_msgboundary = newstr(buf);
+		(void) snprintf(buf, sizeof buf,
+#if DSN
+			"multipart/report; report-type=delivery-status;\n\tboundary=\"%s\"",
+#else
+			"multipart/mixed; boundary=\"%s\"",
+#endif
+			ee->e_msgboundary);
+		addheader("Content-Type", buf, &ee->e_header);
+
+		p = hvalue("Content-Transfer-Encoding", e->e_header);
+		if (p != NULL && strcasecmp(p, "binary") != 0)
+			p = NULL;
+		if (p == NULL && bitset(EF_HAS8BIT, e->e_flags))
+			p = "8bit";
+		if (p != NULL)
+			addheader("Content-Transfer-Encoding", p, &ee->e_header);
+	}
+	if (strncmp(msg, "Warning:", 8) == 0)
+	{
+		addheader("Subject", msg, &ee->e_header);
+		p = "warning-timeout";
+	}
+	else if (strncmp(msg, "Postmaster warning:", 19) == 0)
+	{
+		addheader("Subject", msg, &ee->e_header);
+		p = "postmaster-warning";
+	}
+	else if (strcmp(msg, "Return receipt") == 0)
+	{
+		addheader("Subject", msg, &ee->e_header);
+		p = "return-receipt";
+	}
+	else if (bitset(RTSF_PM_BOUNCE, flags))
+	{
+		snprintf(buf, sizeof buf, "Postmaster notify: %.*s",
+			sizeof buf - 20, msg);
+		addheader("Subject", buf, &ee->e_header);
+		p = "postmaster-notification";
+	}
+	else
+	{
+		snprintf(buf, sizeof buf, "Returned mail: %.*s",
+			sizeof buf - 20, msg);
+		addheader("Subject", buf, &ee->e_header);
+		p = "failure";
+	}
+	(void) snprintf(buf, sizeof buf, "auto-generated (%s)", p);
+	addheader("Auto-Submitted", buf, &ee->e_header);
+
+	/* fake up an address header for the from person */
+	expand("\201n", buf, sizeof buf, e);
+	if (parseaddr(buf, &ee->e_from, RF_COPYALL|RF_SENDERADDR, '\0', NULL, e) == NULL)
+	{
+		syserr("553 Can't parse myself!");
+		ExitStat = EX_SOFTWARE;
+		returndepth--;
+		return (-1);
+	}
+	ee->e_from.q_flags &= ~(QHASNOTIFY|Q_PINGFLAGS);
+	ee->e_from.q_flags |= QPINGONFAILURE;
+	ee->e_sender = ee->e_from.q_paddr;
+
+	/* push state into submessage */
+	CurEnv = ee;
+	define('f', "\201n", ee);
+	define('x', "Mail Delivery Subsystem", ee);
+	eatheader(ee, TRUE);
+
+	/* mark statistics */
+	markstats(ee, NULLADDR);
+
+	/* actually deliver the error message */
+	sendall(ee, SM_DELIVER);
+
+	/* restore state */
+	dropenvelope(ee, TRUE);
+	CurEnv = oldcur;
+	returndepth--;
+
+	/* check for delivery errors */
+	if (ee->e_parent == NULL || !bitset(EF_RESPONSE, ee->e_parent->e_flags))
+		return 0;
+	for (q = ee->e_sendqueue; q != NULL; q = q->q_next)
+	{
+		if (bitset(QQUEUEUP|QSENT, q->q_flags))
+			return 0;
+	}
+	return -1;
+}
+/*
+**  ERRBODY -- output the body of an error message.
+**
+**	Typically this is a copy of the transcript plus a copy of the
+**	original offending message.
+**
+**	Parameters:
+**		mci -- the mailer connection information.
+**		e -- the envelope we are working in.
+**		separator -- any possible MIME separator.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		Outputs the body of an error message.
+*/
+
+void
+errbody(mci, e, separator)
+	register MCI *mci;
+	register ENVELOPE *e;
+	char *separator;
+{
+	register FILE *xfile;
+	char *p;
+	register ADDRESS *q = NULL;
+	bool printheader;
+	bool sendbody;
+	bool pm_notify;
+	char buf[MAXLINE];
+
+	if (bitset(MCIF_INHEADER, mci->mci_flags))
+	{
+		putline("", mci);
+		mci->mci_flags &= ~MCIF_INHEADER;
+	}
+	if (e->e_parent == NULL)
+	{
+		syserr("errbody: null parent");
+		putline("   ----- Original message lost -----\n", mci);
+		return;
+	}
+
+	/*
+	**  Output MIME header.
+	*/
+
+	if (e->e_msgboundary != NULL)
+	{
+		putline("This is a MIME-encapsulated message", mci);
+		putline("", mci);
+		(void) snprintf(buf, sizeof buf, "--%s", e->e_msgboundary);
+		putline(buf, mci);
+		putline("", mci);
+	}
+
+	/*
+	**  Output introductory information.
+	*/
+
+	pm_notify = FALSE;
+	p = hvalue("subject", e->e_header);
+	if (p != NULL && strncmp(p, "Postmaster ", 11) == 0)
+		pm_notify = TRUE;
+	else
+	{
+		for (q = e->e_parent->e_sendqueue; q != NULL; q = q->q_next)
+			if (bitset(QBADADDR, q->q_flags))
+				break;
+	}
+	if (!pm_notify && q == NULL &&
+	    !bitset(EF_FATALERRS|EF_SENDRECEIPT, e->e_parent->e_flags))
+	{
+		putline("    **********************************************",
+			mci);
+		putline("    **      THIS IS A WARNING MESSAGE ONLY      **",
+			mci);
+		putline("    **  YOU DO NOT NEED TO RESEND YOUR MESSAGE  **",
+			mci);
+		putline("    **********************************************",
+			mci);
+		putline("", mci);
+	}
+	snprintf(buf, sizeof buf, "The original message was received at %s",
+		arpadate(ctime(&e->e_parent->e_ctime)));
+	putline(buf, mci);
+	expand("from \201_", buf, sizeof buf, e->e_parent);
+	putline(buf, mci);
+	putline("", mci);
+
+	/*
+	**  Output error message header (if specified and available).
+	*/
+
+	if (ErrMsgFile != NULL && !bitset(EF_SENDRECEIPT, e->e_parent->e_flags))
+	{
+		if (*ErrMsgFile == '/')
+		{
+			int sff = SFF_ROOTOK|SFF_REGONLY;
+
+			if (DontLockReadFiles)
+				sff |= SFF_NOLOCK;
+			xfile = safefopen(ErrMsgFile, O_RDONLY, 0444, sff);
+			if (xfile != NULL)
+			{
+				while (fgets(buf, sizeof buf, xfile) != NULL)
+				{
+#if _FFR_BUG_FIX
+					translate_dollars(buf);
+#endif
+					expand(buf, buf, sizeof buf, e);
+					putline(buf, mci);
+				}
+				(void) fclose(xfile);
+				putline("\n", mci);
+			}
+		}
+		else
+		{
+			expand(ErrMsgFile, buf, sizeof buf, e);
+			putline(buf, mci);
+			putline("", mci);
+		}
+	}
+
+	/*
+	**  Output message introduction
+	*/
+
+	printheader = TRUE;
+	for (q = e->e_parent->e_sendqueue; q != NULL; q = q->q_next)
+	{
+		if (!bitset(QBADADDR, q->q_flags) ||
+		    !bitset(QPINGONFAILURE, q->q_flags))
+			continue;
+
+		if (printheader)
+		{
+			putline("   ----- The following addresses had permanent fatal errors -----",
+				mci);
+			printheader = FALSE;
+		}
+
+		snprintf(buf, sizeof buf, "%s", shortenstring(q->q_paddr, 203));
+		putline(buf, mci);
+		if (q->q_alias != NULL)
+		{
+			snprintf(buf, sizeof buf, "    (expanded from: %s)",
+				shortenstring(q->q_alias->q_paddr, 203));
+			putline(buf, mci);
+		}
+	}
+	if (!printheader)
+		putline("", mci);
+
+	printheader = TRUE;
+	for (q = e->e_parent->e_sendqueue; q != NULL; q = q->q_next)
+	{
+		if (bitset(QBADADDR, q->q_flags) ||
+		    !bitset(QPRIMARY, q->q_flags) ||
+		    !bitset(QDELAYED, q->q_flags))
+			continue;
+
+		if (printheader)
+		{
+			putline("   ----- The following addresses had transient non-fatal errors -----",
+				mci);
+			printheader = FALSE;
+		}
+
+		snprintf(buf, sizeof buf, "%s", shortenstring(q->q_paddr, 203));
+		putline(buf, mci);
+		if (q->q_alias != NULL)
+		{
+			snprintf(buf, sizeof buf, "    (expanded from: %s)",
+				shortenstring(q->q_alias->q_paddr, 203));
+			putline(buf, mci);
+		}
+	}
+	if (!printheader)
+		putline("", mci);
+
+	printheader = TRUE;
+	for (q = e->e_parent->e_sendqueue; q != NULL; q = q->q_next)
+	{
+		if (bitset(QBADADDR, q->q_flags) ||
+		    !bitset(QPRIMARY, q->q_flags) ||
+		    bitset(QDELAYED, q->q_flags))
+			continue;
+		else if (!bitset(QPINGONSUCCESS, q->q_flags))
+			continue;
+		else if (bitset(QRELAYED, q->q_flags))
+			p = "relayed to non-DSN-aware mailer";
+		else if (bitset(QDELIVERED, q->q_flags))
+		{
+			if (bitset(QEXPANDED, q->q_flags))
+				p = "successfully delivered to mailing list";
+			else
+				p = "successfully delivered to mailbox";
+		}
+		else if (bitset(QEXPANDED, q->q_flags))
+			p = "expanded by alias";
+		else
+			continue;
+
+		if (printheader)
+		{
+			putline("   ----- The following addresses had successful delivery notifications -----",
+				mci);
+			printheader = FALSE;
+		}
+
+		snprintf(buf, sizeof buf, "%s  (%s)",
+			shortenstring(q->q_paddr, 203), p);
+		putline(buf, mci);
+		if (q->q_alias != NULL)
+		{
+			snprintf(buf, sizeof buf, "    (expanded from: %s)",
+				shortenstring(q->q_alias->q_paddr, 203));
+			putline(buf, mci);
+		}
+	}
+	if (!printheader)
+		putline("", mci);
+
+	/*
+	**  Output transcript of errors
+	*/
+
+	(void) fflush(stdout);
+	p = queuename(e->e_parent, 'x');
+	if ((xfile = fopen(p, "r")) == NULL)
+	{
+		syserr("Cannot open %s", p);
+		putline("   ----- Transcript of session is unavailable -----\n", mci);
+	}
+	else
+	{
+		printheader = TRUE;
+		if (e->e_xfp != NULL)
+			(void) fflush(e->e_xfp);
+		while (fgets(buf, sizeof buf, xfile) != NULL)
+		{
+			if (printheader)
+				putline("   ----- Transcript of session follows -----\n", mci);
+			printheader = FALSE;
+			putline(buf, mci);
+		}
+		(void) xfclose(xfile, "errbody xscript", p);
+	}
+	errno = 0;
+
+#if DSN
+	/*
+	**  Output machine-readable version.
+	*/
+
+	if (e->e_msgboundary != NULL)
+	{
+		putline("", mci);
+		(void) snprintf(buf, sizeof buf, "--%s", e->e_msgboundary);
+		putline(buf, mci);
+		putline("Content-Type: message/delivery-status", mci);
+		putline("", mci);
+
+		/*
+		**  Output per-message information.
+		*/
+
+		/* original envelope id from MAIL FROM: line */
+		if (e->e_parent->e_envid != NULL)
+		{
+			(void) snprintf(buf, sizeof buf, "Original-Envelope-Id: %.800s",
+				xuntextify(e->e_parent->e_envid));
+			putline(buf, mci);
+		}
+
+		/* Reporting-MTA: is us (required) */
+		(void) snprintf(buf, sizeof buf, "Reporting-MTA: dns; %.800s", MyHostName);
+		putline(buf, mci);
+
+		/* DSN-Gateway: not relevant since we are not translating */
+
+		/* Received-From-MTA: shows where we got this message from */
+		if (RealHostName != NULL)
+		{
+			/* XXX use $s for type? */
+			if (e->e_parent->e_from.q_mailer == NULL ||
+			    (p = e->e_parent->e_from.q_mailer->m_mtatype) == NULL)
+				p = "dns";
+			(void) snprintf(buf, sizeof buf, "Received-From-MTA: %s; %.800s",
+				p, RealHostName);
+			putline(buf, mci);
+		}
+
+		/* Arrival-Date: -- when it arrived here */
+		(void) snprintf(buf, sizeof buf, "Arrival-Date: %s",
+			arpadate(ctime(&e->e_parent->e_ctime)));
+		putline(buf, mci);
+
+		/*
+		**  Output per-address information.
+		*/
+
+		for (q = e->e_parent->e_sendqueue; q != NULL; q = q->q_next)
+		{
+			register ADDRESS *r;
+			char *action;
+
+			if (bitset(QBADADDR, q->q_flags))
+				action = "failed";
+			else if (!bitset(QPRIMARY, q->q_flags))
+				continue;
+			else if (bitset(QDELIVERED, q->q_flags))
+			{
+				if (bitset(QEXPANDED, q->q_flags))
+					action = "delivered (to mailing list)";
+				else
+					action = "delivered (to mailbox)";
+			}
+			else if (bitset(QRELAYED, q->q_flags))
+				action = "relayed (to non-DSN-aware mailer)";
+			else if (bitset(QEXPANDED, q->q_flags))
+				action = "expanded (to multi-recipient alias)";
+			else if (bitset(QDELAYED, q->q_flags))
+				action = "delayed";
+			else
+				continue;
+
+			putline("", mci);
+
+			/* Original-Recipient: -- passed from on high */
+			if (q->q_orcpt != NULL)
+			{
+				(void) snprintf(buf, sizeof buf, "Original-Recipient: %.800s",
+					q->q_orcpt);
+				putline(buf, mci);
+			}
+
+			/* Final-Recipient: -- the name from the RCPT command */
+			p = e->e_parent->e_from.q_mailer->m_addrtype;
+			if (p == NULL)
+				p = "rfc822";
+			for (r = q; r->q_alias != NULL; r = r->q_alias)
+				continue;
+			if (strchr(r->q_user, '@') != NULL)
+			{
+				(void) snprintf(buf, sizeof buf,
+					"Final-Recipient: %s; %.800s",
+					p, r->q_user);
+			}
+			else if (strchr(r->q_paddr, '@') != NULL)
+			{
+				(void) snprintf(buf, sizeof buf,
+					"Final-Recipient: %s; %.800s",
+					p, r->q_paddr);
+			}
+			else
+			{
+				(void) snprintf(buf, sizeof buf,
+					"Final-Recipient: %s; %.700s@%.100s",
+					p, r->q_user, MyHostName);
+			}
+			putline(buf, mci);
+
+			/* X-Actual-Recipient: -- the real problem address */
+			if (r != q && q->q_user[0] != '\0')
+			{
+				if (strchr(q->q_user, '@') == NULL)
+				{
+					(void) snprintf(buf, sizeof buf,
+						"X-Actual-Recipient: %s; %.700s@%.100s",
+						p, q->q_user, MyHostName);
+				}
+				else
+				{
+					(void) snprintf(buf, sizeof buf,
+						"X-Actual-Recipient: %s; %.800s",
+						p, q->q_user);
+				}
+				putline(buf, mci);
+			}
+
+			/* Action: -- what happened? */
+			snprintf(buf, sizeof buf, "Action: %s", action);
+			putline(buf, mci);
+
+			/* Status: -- what _really_ happened? */
+			if (q->q_status != NULL)
+				p = q->q_status;
+			else if (bitset(QBADADDR, q->q_flags))
+				p = "5.0.0";
+			else if (bitset(QQUEUEUP, q->q_flags))
+				p = "4.0.0";
+			else
+				p = "2.0.0";
+			snprintf(buf, sizeof buf, "Status: %s", p);
+			putline(buf, mci);
+
+			/* Remote-MTA: -- who was I talking to? */
+			if (q->q_statmta != NULL)
+			{
+				if (q->q_mailer == NULL ||
+				    (p = q->q_mailer->m_mtatype) == NULL)
+					p = "dns";
+				(void) snprintf(buf, sizeof buf,
+					"Remote-MTA: %s; %.800s",
+					p, q->q_statmta);
+				p = &buf[strlen(buf) - 1];
+				if (*p == '.')
+					*p = '\0';
+				putline(buf, mci);
+			}
+
+			/* Diagnostic-Code: -- actual result from other end */
+			if (q->q_rstatus != NULL)
+			{
+				p = q->q_mailer->m_diagtype;
+				if (p == NULL)
+					p = "smtp";
+				(void) snprintf(buf, sizeof buf,
+					"Diagnostic-Code: %s; %.800s",
+					p, q->q_rstatus);
+				putline(buf, mci);
+			}
+
+			/* Last-Attempt-Date: -- fine granularity */
+			if (q->q_statdate == (time_t) 0L)
+				q->q_statdate = curtime();
+			(void) snprintf(buf, sizeof buf,
+				"Last-Attempt-Date: %s",
+				arpadate(ctime(&q->q_statdate)));
+			putline(buf, mci);
+
+			/* Will-Retry-Until: -- for delayed messages only */
+			if (bitset(QQUEUEUP, q->q_flags) &&
+			    !bitset(QBADADDR, q->q_flags))
+			{
+				time_t xdate;
+
+				xdate = e->e_parent->e_ctime +
+					TimeOuts.to_q_return[e->e_parent->e_timeoutclass];
+				snprintf(buf, sizeof buf,
+					"Will-Retry-Until: %s",
+					arpadate(ctime(&xdate)));
+				putline(buf, mci);
+			}
+		}
+	}
+#endif
+
+	/*
+	**  Output text of original message
+	*/
+
+	putline("", mci);
+	if (bitset(EF_HAS_DF, e->e_parent->e_flags))
+	{
+		sendbody = !bitset(EF_NO_BODY_RETN, e->e_parent->e_flags) &&
+			   !bitset(EF_NO_BODY_RETN, e->e_flags);
+
+		if (e->e_msgboundary == NULL)
+		{
+			if (sendbody)
+				putline("   ----- Original message follows -----\n", mci);
+			else
+				putline("   ----- Message header follows -----\n", mci);
+			(void) fflush(mci->mci_out);
+		}
+		else
+		{
+			(void) snprintf(buf, sizeof buf, "--%s",
+				e->e_msgboundary);
+
+			putline(buf, mci);
+			(void) snprintf(buf, sizeof buf, "Content-Type: %s",
+				sendbody ? "message/rfc822"
+					 : "text/rfc822-headers");
+			putline(buf, mci);
+
+			p = hvalue("Content-Transfer-Encoding", e->e_parent->e_header);
+			if (p != NULL && strcasecmp(p, "binary") != 0)
+				p = NULL;
+			if (p == NULL && bitset(EF_HAS8BIT, e->e_parent->e_flags))
+				p = "8bit";
+			if (p != NULL)
+			{
+				(void) snprintf(buf, sizeof buf, "Content-Transfer-Encoding: %s",
+					p);
+				putline(buf, mci);
+			}
+		}
+		putline("", mci);
+		putheader(mci, e->e_parent->e_header, e->e_parent);
+		if (sendbody)
+			putbody(mci, e->e_parent, e->e_msgboundary);
+		else if (e->e_msgboundary == NULL)
+		{
+			putline("", mci);
+			putline("   ----- Message body suppressed -----", mci);
+		}
+	}
+	else if (e->e_msgboundary == NULL)
+	{
+		putline("  ----- No message was collected -----\n", mci);
+	}
+
+	if (e->e_msgboundary != NULL)
+	{
+		putline("", mci);
+		(void) snprintf(buf, sizeof buf, "--%s--", e->e_msgboundary);
+		putline(buf, mci);
+	}
+	putline("", mci);
+
+	/*
+	**  Cleanup and exit
+	*/
+
+	if (errno != 0)
+		syserr("errbody: I/O error");
+}
+/*
+**  SMTPTODSN -- convert SMTP to DSN status code
+**
+**	Parameters:
+**		smtpstat -- the smtp status code (e.g., 550).
+**
+**	Returns:
+**		The DSN version of the status code.
+*/
+
+char *
+smtptodsn(smtpstat)
+	int smtpstat;
+{
+	if (smtpstat < 0)
+		return "4.4.2";
+
+	switch (smtpstat)
+	{
+	  case 450:	/* Req mail action not taken: mailbox unavailable */
+		return "4.2.0";
+
+	  case 451:	/* Req action aborted: local error in processing */
+		return "4.3.0";
+
+	  case 452:	/* Req action not taken: insufficient sys storage */
+		return "4.3.1";
+
+	  case 500:	/* Syntax error, command unrecognized */
+		return "5.5.2";
+
+	  case 501:	/* Syntax error in parameters or arguments */
+		return "5.5.4";
+
+	  case 502:	/* Command not implemented */
+		return "5.5.1";
+
+	  case 503:	/* Bad sequence of commands */
+		return "5.5.1";
+
+	  case 504:	/* Command parameter not implemented */
+		return "5.5.4";
+
+	  case 550:	/* Req mail action not taken: mailbox unavailable */
+		return "5.2.0";
+
+	  case 551:	/* User not local; please try <...> */
+		return "5.1.6";
+
+	  case 552:	/* Req mail action aborted: exceeded storage alloc */
+		return "5.2.2";
+
+	  case 553:	/* Req action not taken: mailbox name not allowed */
+		return "5.1.0";
+
+	  case 554:	/* Transaction failed */
+		return "5.0.0";
+	}
+
+	if ((smtpstat / 100) == 2)
+		return "2.0.0";
+	if ((smtpstat / 100) == 4)
+		return "4.0.0";
+	return "5.0.0";
+}
+/*
+**  XTEXTIFY -- take regular text and turn it into DSN-style xtext
+**
+**	Parameters:
+**		t -- the text to convert.
+**		taboo -- additional characters that must be encoded.
+**
+**	Returns:
+**		The xtext-ified version of the same string.
+*/
+
+char *
+xtextify(t, taboo)
+	register char *t;
+	char *taboo;
+{
+	register char *p;
+	int l;
+	int nbogus;
+	static char *bp = NULL;
+	static int bplen = 0;
+
+	if (taboo == NULL)
+		taboo = "";
+
+	/* figure out how long this xtext will have to be */
+	nbogus = l = 0;
+	for (p = t; *p != '\0'; p++)
+	{
+		register int c = (*p & 0xff);
+
+		/* ASCII dependence here -- this is the way the spec words it */
+		if (c < '!' || c > '~' || c == '+' || c == '\\' || c == '(' ||
+		    strchr(taboo, c) != NULL)
+			nbogus++;
+		l++;
+	}
+	if (nbogus == 0)
+		return t;
+	l += nbogus * 2 + 1;
+
+	/* now allocate space if necessary for the new string */
+	if (l > bplen)
+	{
+		if (bp != NULL)
+			free(bp);
+		bp = xalloc(l);
+		bplen = l;
+	}
+
+	/* ok, copy the text with byte expansion */
+	for (p = bp; *t != '\0'; )
+	{
+		register int c = (*t++ & 0xff);
+
+		/* ASCII dependence here -- this is the way the spec words it */
+		if (c < '!' || c > '~' || c == '+' || c == '\\' || c == '(' ||
+		    strchr(taboo, c) != NULL)
+		{
+			*p++ = '+';
+			*p++ = "0123456789abcdef"[c >> 4];
+			*p++ = "0123456789abcdef"[c & 0xf];
+		}
+		else
+			*p++ = c;
+	}
+	*p = '\0';
+	return bp;
+}
+/*
+**  XUNTEXTIFY -- take xtext and turn it into plain text
+**
+**	Parameters:
+**		t -- the xtextified text.
+**
+**	Returns:
+**		The decoded text.  No attempt is made to deal with
+**		null strings in the resulting text.
+*/
+
+char *
+xuntextify(t)
+	register char *t;
+{
+	register char *p;
+	int l;
+	static char *bp = NULL;
+	static int bplen = 0;
+
+	/* heuristic -- if no plus sign, just return the input */
+	if (strchr(t, '+') == NULL)
+		return t;
+
+	/* xtext is always longer than decoded text */
+	l = strlen(t);
+	if (l > bplen)
+	{
+		if (bp != NULL)
+			free(bp);
+		bp = xalloc(l);
+		bplen = l;
+	}
+
+	/* ok, copy the text with byte compression */
+	for (p = bp; *t != '\0'; t++)
+	{
+		register int c = *t & 0xff;
+
+		if (c != '+')
+		{
+			*p++ = c;
+			continue;
+		}
+
+		c = *++t & 0xff;
+		if (!isascii(c) || !isxdigit(c))
+		{
+			/* error -- first digit is not hex */
+			usrerr("bogus xtext: +%c", c);
+			t--;
+			continue;
+		}
+		if (isdigit(c))
+			c -= '0';
+		else if (isupper(c))
+			c -= 'A' - 10;
+		else
+			c -= 'a' - 10;
+		*p = c << 4;
+
+		c = *++t & 0xff;
+		if (!isascii(c) || !isxdigit(c))
+		{
+			/* error -- second digit is not hex */
+			usrerr("bogus xtext: +%x%c", *p >> 4, c);
+			t--;
+			continue;
+		}
+		if (isdigit(c))
+			c -= '0';
+		else if (isupper(c))
+			c -= 'A' - 10;
+		else
+			c -= 'a' - 10;
+		*p++ |= c;
+	}
+	*p = '\0';
+	return bp;
+}
+/*
+**  XTEXTOK -- check if a string is legal xtext
+**
+**	Xtext is used in Delivery Status Notifications.  The spec was
+**	taken from RFC 1891, ``SMTP Service Extension for Delivery
+**	Status Notifications''.
+**
+**	Parameters:
+**		s -- the string to check.
+**
+**	Returns:
+**		TRUE -- if 's' is legal xtext.
+**		FALSE -- if it has any illegal characters in it.
+*/
+
+bool
+xtextok(s)
+	char *s;
+{
+	int c;
+
+	while ((c = *s++) != '\0')
+	{
+		if (c == '+')
+		{
+			c = *s++;
+			if (!isascii(c) || !isxdigit(c))
+				return FALSE;
+			c = *s++;
+			if (!isascii(c) || !isxdigit(c))
+				return FALSE;
+		}
+		else if (c < '!' || c > '~' || c == '=')
+			return FALSE;
+	}
+	return TRUE;
+}
+/*
+**  PRUNEROUTE -- prune an RFC-822 source route
+** 
+**	Trims down a source route to the last internet-registered hop.
+**	This is encouraged by RFC 1123 section 5.3.3.
+** 
+**	Parameters:
+**		addr -- the address
+** 
+**	Returns:
+**		TRUE -- address was modified
+**		FALSE -- address could not be pruned
+** 
+**	Side Effects:
+**		modifies addr in-place
+*/
+
+bool
+pruneroute(addr)
+	char *addr;
+{
+#if NAMED_BIND
+	char *start, *at, *comma;
+	char c;
+	int rcode;
+	int i;
+	char hostbuf[BUFSIZ];
+	char *mxhosts[MAXMXHOSTS + 1];
+
+	/* check to see if this is really a route-addr */
+	if (*addr != '<' || addr[1] != '@' || addr[strlen(addr) - 1] != '>')
+		return FALSE;
+	start = strchr(addr, ':');
+	at = strrchr(addr, '@');
+	if (start == NULL || at == NULL || at < start)
+		return FALSE;
+
+	/* slice off the angle brackets */
+	i = strlen(at + 1);
+	if (i >= (SIZE_T) sizeof hostbuf)
+		return FALSE;
+	strcpy(hostbuf, at + 1);
+	hostbuf[i - 1] = '\0';
+
+	while (start)
+	{
+		if (getmxrr(hostbuf, mxhosts, FALSE, &rcode) > 0)
+		{
+			strcpy(addr + 1, start + 1);
+			return TRUE;
+		}
+		c = *start;
+		*start = '\0';
+		comma = strrchr(addr, ',');
+		if (comma != NULL && comma[1] == '@' &&
+		    strlen(comma + 2) < (SIZE_T) sizeof hostbuf)
+			strcpy(hostbuf, comma + 2);
+		else
+			comma = NULL;
+		*start = c;
+		start = comma;
+	}
+#endif
+	return FALSE;
+}
diff --git a/src/sendmail.0 b/src/sendmail.0
new file mode 100644
index 0000000..d4472e8
--- /dev/null
+++ b/src/sendmail.0
@@ -0,0 +1,358 @@
+SENDMAIL(8)               BSD System Manager's Manual              SENDMAIL(8)
+
+NNAAMMEE
+     sseennddmmaaiill - an electronic mail transport agent
+
+SSYYNNOOPPSSIISS
+     sseennddmmaaiill [_f_l_a_g_s] [_a_d_d_r_e_s_s _._._.]
+     nneewwaalliiaasseess
+     mmaaiillqq [--vv]
+
+DDEESSCCRRIIPPTTIIOONN
+     SSeennddmmaaiill sends a message to one or more _r_e_c_i_p_i_e_n_t_s, routing the message
+     over whatever networks are necessary.  SSeennddmmaaiill does internetwork for-
+     warding as necessary to deliver the message to the correct place.
+
+     SSeennddmmaaiill is not intended as a user interface routine; other programs pro-
+     vide user-friendly front ends; sseennddmmaaiill is used only to deliver pre-
+     formatted messages.
+
+     With no flags, sseennddmmaaiill reads its standard input up to an end-of-file or
+     a line consisting only of a single dot and sends a copy of the message
+     found there to all of the addresses listed.  It determines the network(s)
+     to use based on the syntax and contents of the addresses.
+
+     Local addresses are looked up in a file and aliased appropriately.
+     Aliasing can be prevented by preceding the address with a backslash.
+     Normally the sender is not included in any alias expansions, e.g., if
+     `john' sends to `group', and `group' includes `john' in the expansion,
+     then the letter will not be delivered to `john'.
+
+   PPaarraammeetteerrss
+
+     --BB_t_y_p_e      Set the body type to _t_y_p_e. Current legal values 7BIT or
+                 8BITMIME.
+
+     --bbaa         Go into ARPANET mode.  All input lines must end with a CR-LF,
+                 and all messages will be generated with a CR-LF at the end.
+                 Also, the ``From:'' and ``Sender:'' fields are examined for
+                 the name of the sender.
+
+     --bbdd         Run as a daemon.  This requires Berkeley IPC. SSeennddmmaaiill will
+                 fork and run in background listening on socket 25 for incom-
+                 ing SMTP connections.  This is normally run from _/_e_t_c_/_r_c.
+
+     --bbDD         Same as --bbdd except runs in foreground.
+
+     --bbhh         Print the persistent host status database.
+
+     --bbHH         Purge the persistent host status database.
+
+     --bbii         Initialize the alias database.
+
+     --bbmm         Deliver mail in the usual way (default).
+
+     --bbpp         Print a listing of the queue.
+
+     --bbss         Use the SMTP protocol as described in RFC821 on standard in-
+                 put and output.  This flag implies all the operations of the
+                 --bbaa flag that are compatible with SMTP.
+
+     --bbtt         Run in address test mode.  This mode reads addresses and
+                 shows the steps in parsing; it is used for debugging configu-
+                 ration tables.
+
+     --bbvv         Verify names only - do not try to collect or deliver a mes-
+                 sage.  Verify mode is normally used for validating users or
+                 mailing lists.
+
+     --CC_f_i_l_e      Use alternate configuration file.  SSeennddmmaaiill refuses to run as
+                 root if an alternate configuration file is specified.
+
+     --dd_X         Set debugging value to _X.
+
+     --FF_f_u_l_l_n_a_m_e  Set the full name of the sender.
+
+     --ff_n_a_m_e      Sets the name of the ``from'' person (i.e., the sender of the
+                 mail).  --ff can only be used by ``trusted'' users (normally
+                 _r_o_o_t, _d_a_e_m_o_n, and _n_e_t_w_o_r_k) or if the person you are trying to
+                 become is the same as the person you are.
+
+     --hh_N         Set the hop count to _N. The hop count is incremented every
+                 time the mail is processed.  When it reaches a limit, the
+                 mail is returned with an error message, the victim of an
+                 aliasing loop.  If not specified, ``Received:'' lines in the
+                 message are counted.
+
+     --ii          Ignore dots alone on lines by themselves in incoming mes-
+                 sages.  This should be set if you are reading data from a
+                 file.
+
+     --NN _d_s_n      Set delivery status notification conditions to _d_s_n_, which can
+                 be `never' for no notifications or a comma separated list of
+                 the values `failure' to be notified if delivery failed,
+                 `delay' to be notified if delivery is delayed, and `success'
+                 to be notified when the message is successfully delivered.
+
+     --nn          Don't do aliasing.
+
+     --OO _o_p_t_i_o_n=_v_a_l_u_e
+                 Set option _o_p_t_i_o_n to the specified _v_a_l_u_e. This form uses long
+                 names.  See below for more details.
+
+     --oo_x _v_a_l_u_e   Set option _x to the specified _v_a_l_u_e. This form uses single
+                 character names only.  The short names are not described in
+                 this manual page; see the _S_e_n_d_m_a_i_l _I_n_s_t_a_l_l_a_t_i_o_n _a_n_d _O_p_e_r_a_t_i_o_n
+                 _G_u_i_d_e for details.
+
+     --pp_p_r_o_t_o_c_o_l  Set the name of the protocol used to receive the message.
+                 This can be a simple protocol name such as ``UUCP'' or a pro-
+                 tocol and hostname, such as ``UUCP:ucbvax''.
+
+     --qq[_t_i_m_e]    Processed saved messages in the queue at given intervals.  If
+                 _t_i_m_e is omitted, process the queue once.  Time is given as a
+                 tagged number, with `s' being seconds, `m' being minutes, `h'
+                 being hours, `d' being days, and `w' being weeks.  For exam-
+                 ple, `-q1h30m' or `-q90m' would both set the timeout to one
+                 hour thirty minutes.  If _t_i_m_e is specified, sseennddmmaaiill will run
+                 in background.  This option can be used safely with --bbdd.
+
+     --qqII_s_u_b_s_t_r   Limit processed jobs to those containing _s_u_b_s_t_r as a sub-
+                 string of the queue id.
+
+     --qqRR_s_u_b_s_t_r   Limit processed jobs to those containing _s_u_b_s_t_r as a sub-
+                 string of one of the recipients.
+
+     --qqSS_s_u_b_s_t_r   Limit processed jobs to those containing _s_u_b_s_t_r as a sub-
+                 string of the sender.
+
+     --RR _r_e_t_u_r_n   Set the amount of the message to be returned if the message
+                 bounces.  The _r_e_t_u_r_n parameter can be `full' to return the
+
+                 entire message or `hdrs' to return only the headers.
+
+     --rr_n_a_m_e      An alternate and obsolete form of the --ff flag.
+
+     --tt          Read message for recipients.  To:, Cc:, and Bcc: lines will
+                 be scanned for recipient addresses.  The Bcc: line will be
+                 deleted before transmission.  Any addresses in the argument
+                 list will be suppressed, that is, they will _n_o_t receive
+                 copies even if listed in the message header.
+
+     --UU          Initial (user) submission.  This should _a_l_w_a_y_s be set when
+                 called from a user agent such as MMaaiill or eexxmmhh and _n_e_v_e_r be
+                 set when called by a network delivery agent such as rrmmaaiill.
+
+     --VV _e_n_v_i_d    Set the original envelope id.  This is propogated across SMTP
+                 to servers that support DSNs and is returned in DSN-compliant
+                 error messages.
+
+     --vv          Go into verbose mode.  Alias expansions will be announced,
+                 etc.
+
+     --XX _l_o_g_f_i_l_e  Log all traffic in and out of mailers in the indicated log
+                 file.  This should only be used as a last resort for debug-
+                 ging mailer bugs.  It will log a lot of data very quickly.
+
+   OOppttiioonnss
+     There are also a number of processing options that may be set.  Normally
+     these will only be used by a system administrator.  Options may be set
+     either on the command line using the --oo flag (for short names), the --OO
+     flag (for long names), or in the configuration file.  This is a partial
+     list limited to those options that are likely to be useful on the command
+     line and only shows the long names; for a complete list (and details),
+     consult the _S_e_n_d_m_a_i_l _I_n_s_t_a_l_l_a_t_i_o_n _a_n_d _O_p_e_r_a_t_i_o_n _G_u_i_d_e. The options are:
+
+     AliasFile=_f_i_l_e
+                 Use alternate alias file.
+
+     HoldExpensive
+                 On mailers that are considered ``expensive'' to connect to,
+                 don't initiate immediate connection.  This requires queueing.
+
+     CheckpointInterval=_N
+                 Checkpoint the queue file after every _N successful deliveries
+                 (default 10).  This avoids excessive duplicate deliveries
+                 when sending to long mailing lists interrupted by system
+                 crashes.
+
+     DeliveryMode=_x
+                 Set the delivery mode to _x. Delivery modes are `i' for inter-
+                 active (synchronous) delivery, `b' for background (asyn-
+                 chronous) delivery, `q' for queue only - i.e., actual deliv-
+                 ery is done the next time the queue is run, and `d' for de-
+                 ferred - the same as `q' except that database lookups (no-
+                 tably DNS and NIS lookups) are avoided.
+
+     ErrorMode=_x
+                 Set error processing to mode _x. Valid modes are `m' to mail
+                 back the error message, `w' to ``write'' back the error mes-
+                 sage (or mail it back if the sender is not logged in), `p' to
+                 print the errors on the terminal (default), `q' to throw away
+                 error messages (only exit status is returned), and `e' to do
+                 special processing for the BerkNet.  If the text of the mes-
+                 sage is not mailed back by modes `m' or `w' and if the sender
+                 is local to this machine, a copy of the message is appended
+
+
+                 to the file _d_e_a_d_._l_e_t_t_e_r in the sender's home directory.
+
+     SaveFromLine
+                 Save UNIX-style From lines at the front of messages.
+
+     MaxHopCount= _N
+                 The maximum number of times a message is allowed to ``hop''
+                 before we decide it is in a loop.
+
+     IgnoreDots  Do not take dots on a line by themselves as a message termi-
+                 nator.
+
+     SendMimeErrors
+                 Send error messages in MIME format.  If not set, the DSN (De-
+                 livery Status Notification) SMTP extension is disabled.
+
+     ConnectionCacheTimeout=_t_i_m_e_o_u_t
+                 Set connection cache timeout.
+
+     ConnectionCacheSize=_N
+                 Set connection cache size.
+
+     LogLevel=_n  The log level.
+
+     MeToo       Send to ``me'' (the sender) also if I am in an alias expan-
+                 sion.
+
+     CheckAliases
+                 Validate the right hand side of aliases during a newalias-
+                 es(1) command.
+
+     OldStyleHeaders
+                 If set, this message may have old style headers.  If not set,
+                 this message is guaranteed to have new style headers (i.e.,
+                 commas instead of spaces between addresses).  If set, an
+                 adaptive algorithm is used that will correctly determine the
+                 header format in most cases.
+
+     QueueDirectory=_q_u_e_u_e_d_i_r
+                 Select the directory in which to queue messages.
+
+     StatusFile=_f_i_l_e
+                 Save statistics in the named file.
+
+     Timeout.queuereturn=_t_i_m_e
+                 Set the timeout on undelivered messages in the queue to the
+                 specified time.  After delivery has failed (e.g., because of
+                 a host being down) for this amount of time, failed messages
+                 will be returned to the sender.  The default is five days.
+
+     UserDatabaseSpec=_u_s_e_r_d_a_t_a_b_a_s_e
+                 If set, a user database is consulted to get forwarding infor-
+                 mation.  You can consider this an adjunct to the aliasing
+                 mechanism, except that the database is intended to be dis-
+                 tributed; aliases are local to a particular host.  This may
+                 not be available if your sendmail does not have the USERDB
+                 option compiled in.
+
+     ForkEachJob
+                 Fork each job during queue runs.  May be convenient on memo-
+                 ry-poor machines.
+
+     SevenBitInput
+                 Strip incoming messages to seven bits.
+
+     EightBitMode=_m_o_d_e
+                 Set the handling of eight bit input to seven bit destinations
+                 to _m_o_d_e: m (mimefy) will convert to seven-bit MIME format, p
+                 (pass) will pass it as eight bits (but violates protocols),
+                 and s (strict) will bounce the message.
+
+     MinQueueAge=_t_i_m_e_o_u_t
+                 Sets how long a job must ferment in the queue between at-
+                 tempts to send it.
+
+     DefaultCharSet=_c_h_a_r_s_e_t
+                 Sets the default character set used to label 8-bit data that
+                 is not otherwise labelled.
+
+     DialDelay=_s_l_e_e_p_t_i_m_e
+                 If opening a connection fails, sleep for _s_l_e_e_p_t_i_m_e seconds
+                 and try again.  Useful on dial-on-demand sites.
+
+     NoRecipientAction=_a_c_t_i_o_n
+                 Set the behaviour when there are no recipient headers (To:,
+                 Cc: or Bcc:) in the message to _a_c_t_i_o_n: none leaves the mes-
+                 sage unchanged, add-to adds a To: header with the envelope
+                 recipients, add-apparently-to adds an Apparently-To: header
+                 with the envelope recipients, add-bcc adds an empty Bcc:
+                 header, and add-to-undisclosed adds a header reading `To:
+                 undisclosed-recipients:;'.
+
+     MaxDaemonChildren=_N
+                 Sets the maximum number of children that an incoming SMTP
+                 daemon will allow to spawn at any time to _N.
+
+     ConnectionRateThrottle=_N
+                 Sets the maximum number of connections per second to the SMTP
+                 port to _N.
+
+     In aliases, the first character of a name may be a vertical bar to cause
+     interpretation of the rest of the name as a command to pipe the mail to.
+     It may be necessary to quote the name to keep sseennddmmaaiill from suppressing
+     the blanks from between arguments.  For example, a common alias is:
+
+           msgs: "|/usr/bin/msgs -s"
+
+     Aliases may also have the syntax ``:include:_f_i_l_e_n_a_m_e'' to ask sendmail to
+     read the named file for a list of recipients.  For example, an alias such
+     as:
+
+           poets: ":include:/usr/local/lib/poets.list"
+
+     would read _/_u_s_r_/_l_o_c_a_l_/_l_i_b_/_p_o_e_t_s_._l_i_s_t for the list of addresses making up
+     the group.
+
+     SSeennddmmaaiill returns an exit status describing what it did.  The codes are
+     defined in <_s_y_s_e_x_i_t_s_._h>:
+           EX_OK           Successful completion on all addresses.
+           EX_NOUSER       User name not recognized.
+           EX_UNAVAILABLE  Catchall meaning necessary resources were not
+                           available.
+           EX_SYNTAX       Syntax error in address.
+           EX_SOFTWARE     Internal software error, including bad arguments.
+           EX_OSERR        Temporary operating system error, such as ``cannot
+                           fork''.
+           EX_NOHOST       Host name not recognized.
+           EX_TEMPFAIL     Message could not be sent immediately, but was
+                           queued.
+
+     If invoked as nneewwaalliiaasseess, sseennddmmaaiill will rebuild the alias database.  If
+     invoked as mmaaiillqq, sseennddmmaaiill will print the contents of the mail queue.
+
+FFIILLEESS
+     Except for the file _/_e_t_c_/_s_e_n_d_m_a_i_l_._c_f itself, the following pathnames are
+     all specified in _/_e_t_c_/_s_e_n_d_m_a_i_l_._c_f_. Thus, these values are only approxima-
+     tions.
+
+     /etc/aliases          raw data for alias names
+     /etc/aliases.db       data base of alias names
+     /etc/sendmail.cf      configuration file
+     /etc/sendmail.hf      help file
+     /var/log/sendmail.st  collected statistics
+     /var/spool/mqueue/*   temp files
+     /var/run/sendmail.pid
+                           The process id of the daemon
+
+SSEEEE AALLSSOO
+     binmail(1),  mail(1),  rmail(1),  syslog(3),  aliases(5),  mailaddr(7),
+     rc(8);
+
+     DARPA Internet Request For Comments _R_F_C_8_1_9, _R_F_C_8_2_1, _R_F_C_8_2_2.
+
+     _S_e_n_d_m_a_i_l _- _A_n _I_n_t_e_r_n_e_t_w_o_r_k _M_a_i_l _R_o_u_t_e_r, No. 9, SMM.
+
+     _S_e_n_d_m_a_i_l _I_n_s_t_a_l_l_a_t_i_o_n _a_n_d _O_p_e_r_a_t_i_o_n _G_u_i_d_e, No. 8, SMM.
+
+HHIISSTTOORRYY
+     The sseennddmmaaiill command appeared in 4.2BSD.
+
+4th Berkeley Distribution     September 20, 1996                             6
diff --git a/src/sendmail.8 b/src/sendmail.8
new file mode 100644
index 0000000..9a0a687
--- /dev/null
+++ b/src/sendmail.8
@@ -0,0 +1,606 @@
+.\" Copyright (c) 1983, 1997 Eric P. Allman
+.\" Copyright (c) 1988, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)sendmail.8	8.12 (Berkeley) 2/1/97
+.\"
+.Dd February 1, 1997
+.Dt SENDMAIL 8
+.Os BSD 4
+.Sh NAME
+.Nm sendmail
+.Nd an electronic mail transport agent
+.Sh SYNOPSIS
+.Nm sendmail
+.Op Ar flags
+.Op Ar address ...
+.Nm newaliases
+.Nm mailq
+.Op Fl v
+.Sh DESCRIPTION
+.Nm Sendmail
+sends a message to one or more
+.Em recipients ,
+routing the message over whatever networks
+are necessary.
+.Nm Sendmail
+does internetwork forwarding as necessary
+to deliver the message to the correct place.
+.Pp
+.Nm Sendmail
+is not intended as a user interface routine;
+other programs provide user-friendly
+front ends;
+.Nm sendmail
+is used only to deliver pre-formatted messages.
+.Pp
+With no flags,
+.Nm sendmail
+reads its standard input
+up to an end-of-file
+or a line consisting only of a single dot
+and sends a copy of the message found there
+to all of the addresses listed.
+It determines the network(s) to use
+based on the syntax and contents of the addresses.
+.Pp
+Local addresses are looked up in a file
+and aliased appropriately.
+Aliasing can be prevented by preceding the address
+with a backslash.
+Normally the sender is not included in any alias
+expansions, e.g.,
+if `john' sends to `group',
+and `group' includes `john' in the expansion,
+then the letter will not be delivered to `john'.
+.Ss Parameters
+.Bl -tag -width Fl
+.It Fl B Ns Ar type
+Set the body type to
+.Ar type .
+Current legal values
+.Li 7BIT
+or
+.Li 8BITMIME .
+.It Fl ba
+Go into
+.Tn ARPANET
+mode.
+All input lines must end with a CR-LF,
+and all messages will be generated with a CR-LF at the end.
+Also,
+the ``From:'' and ``Sender:''
+fields are examined for the name of the sender.
+.It Fl bd
+Run as a daemon.  This requires Berkeley
+.Tn IPC .
+.Nm Sendmail
+will fork and run in background
+listening on socket 25 for incoming
+.Tn SMTP
+connections.
+This is normally run from
+.Pa /etc/rc .
+.It Fl bD
+Same as
+.Fl bd
+except runs in foreground.
+.It Fl bh
+Print the persistent host status database.
+.It Fl bH
+Purge the persistent host status database.
+.It Fl bi
+Initialize the alias database.
+.It Fl bm
+Deliver mail in the usual way (default).
+.It Fl bp
+Print a listing of the queue.
+.It Fl bs
+Use the
+.Tn SMTP
+protocol as described in
+.Tn RFC821
+on standard input and output.
+This flag implies all the operations of the
+.Fl ba
+flag that are compatible with
+.Tn SMTP .
+.It Fl bt
+Run in address test mode.
+This mode reads addresses and shows the steps in parsing;
+it is used for debugging configuration tables.
+.It Fl bv
+Verify names only \- do not try to collect or deliver a message.
+Verify mode is normally used for validating
+users or mailing lists.
+.It Fl C Ns Ar file
+Use alternate configuration file.
+.Nm Sendmail
+refuses to run as root if an alternate configuration file is specified.
+.It Fl d Ns Ar X
+Set debugging value to
+.Ar X .
+.ne 1i
+.It Fl F Ns Ar fullname
+Set the full name of the sender.
+.It Fl f Ns Ar name
+Sets the name of the ``from'' person
+(i.e., the sender of the mail).
+.Fl f
+can only be used
+by ``trusted'' users
+(normally
+.Em root ,
+.Em daemon ,
+and
+.Em network )
+or if the person you are trying to become
+is the same as the person you are.
+.It Fl h Ns Ar N
+Set the hop count to
+.Ar N .
+The hop count is incremented every time the mail is
+processed.
+When it reaches a limit,
+the mail is returned with an error message,
+the victim of an aliasing loop.
+If not specified,
+``Received:'' lines in the message are counted.
+.It Fl i
+Ignore dots alone on lines by themselves in incoming messages.
+This should be set if you are reading data from a file.
+.It Fl N Ar dsn
+Set delivery status notification conditions to
+.Ar dsn,
+which can be
+.Ql never
+for no notifications
+or a comma separated list of the values
+.Ql failure
+to be notified if delivery failed,
+.Ql delay
+to be notified if delivery is delayed, and
+.Ql success
+to be notified when the message is successfully delivered.
+.It Fl n
+Don't do aliasing.
+.It Fl O Ar option Ns = Ns Em value
+Set option
+.Ar option
+to the specified
+.Em value .
+This form uses long names.
+See below for more details.
+.It Fl o Ns Ar x Em value
+Set option
+.Ar x
+to the specified
+.Em value .
+This form uses single character names only.
+The short names are not described in this manual page;
+see the
+.%T "Sendmail Installation and Operation Guide"
+for details.
+.It Fl p Ns Ar protocol
+Set the name of the protocol used to receive the message.
+This can be a simple protocol name such as ``UUCP''
+or a protocol and hostname, such as ``UUCP:ucbvax''.
+.It Fl q Ns Bq Ar time
+Processed saved messages in the queue at given intervals.
+If
+.Ar time
+is omitted,
+process the queue once.
+.Xr Time
+is given as a tagged number,
+with
+.Ql s
+being seconds,
+.Ql m
+being minutes,
+.Ql h
+being hours,
+.Ql d
+being days,
+and
+.Ql w
+being weeks.
+For example,
+.Ql \-q1h30m
+or
+.Ql \-q90m
+would both set the timeout to one hour thirty minutes.
+If
+.Ar time
+is specified,
+.Nm sendmail
+will run in background.
+This option can be used safely with
+.Fl bd .
+.It Fl qI Ns Ar substr
+Limit processed jobs to those containing
+.Ar substr
+as a substring of the queue id.
+.It Fl qR Ns Ar substr
+Limit processed jobs to those containing
+.Ar substr
+as a substring of one of the recipients.
+.It Fl qS Ns Ar substr
+Limit processed jobs to those containing
+.Ar substr
+as a substring of the sender.
+.It Fl R Ar return
+Set the amount of the message to be returned
+if the message bounces.
+The
+.Ar return
+parameter can be
+.Ql full
+to return the entire message or
+.Ql hdrs
+to return only the headers.
+.It Fl r Ns Ar name
+An alternate and obsolete form of the
+.Fl f
+flag.
+.It Fl t
+Read message for recipients.
+To:, Cc:, and Bcc: lines will be scanned for recipient addresses.
+The Bcc: line will be deleted before transmission.
+Any addresses in the argument list will be suppressed,
+that is,
+they will
+.Em not
+receive copies even if listed in the message header.
+.It Fl U
+Initial (user) submission.
+This should
+.Em always
+be set when called from a user agent such as
+.Nm Mail
+or
+.Nm exmh
+and
+.Em never
+be set when called by a network delivery agent such as
+.Nm rmail .
+.It Fl V Ar envid
+Set the original envelope id.
+This is propagated across SMTP to servers that support DSNs
+and is returned in DSN-compliant error messages.
+.It Fl v
+Go into verbose mode.
+Alias expansions will be announced, etc.
+.It Fl X Ar logfile
+Log all traffic in and out of mailers in the indicated log file.
+This should only be used as a last resort
+for debugging mailer bugs.
+It will log a lot of data very quickly.
+.El
+.Ss Options
+There are also a number of processing options that may be set.
+Normally these will only be used by a system administrator.
+Options may be set either on the command line
+using the
+.Fl o
+flag (for short names),
+the
+.Fl O
+flag (for long names),
+or in the configuration file.
+This is a partial list limited to those options that are likely to be useful
+on the command line
+and only shows the long names;
+for a complete list (and details), consult the
+.%T "Sendmail Installation and Operation Guide" .
+The options are:
+.Bl -tag -width Fl
+.It Li AliasFile= Ns Ar file
+Use alternate alias file.
+.It Li HoldExpensive
+On mailers that are considered ``expensive'' to connect to,
+don't initiate immediate connection.
+This requires queueing.
+.It Li CheckpointInterval= Ns Ar N
+Checkpoint the queue file after every
+.Ar N
+successful deliveries (default 10).
+This avoids excessive duplicate deliveries
+when sending to long mailing lists
+interrupted by system crashes.
+.ne 1i
+.It Li DeliveryMode= Ns Ar x
+Set the delivery mode to
+.Ar x .
+Delivery modes are
+.Ql i
+for interactive (synchronous) delivery,
+.Ql b
+for background (asynchronous) delivery,
+.Ql q
+for queue only \- i.e.,
+actual delivery is done the next time the queue is run, and
+.Ql d
+for deferred \- the same as
+.Ql q
+except that database lookups (notably DNS and NIS lookups) are avoided.
+.It Li ErrorMode= Ns Ar x
+Set error processing to mode
+.Ar x .
+Valid modes are
+.Ql m
+to mail back the error message,
+.Ql w
+to ``write'' back the error message
+(or mail it back if the sender is not logged in),
+.Ql p
+to print the errors on the terminal
+(default),
+.Ql q
+to throw away error messages
+(only exit status is returned),
+and
+.Ql e
+to do special processing for the BerkNet.
+If the text of the message is not mailed back
+by
+modes
+.Ql m
+or
+.Ql w
+and if the sender is local to this machine,
+a copy of the message is appended to the file
+.Pa dead.letter
+in the sender's home directory.
+.It Li SaveFromLine
+Save
+.Tn UNIX Ns \-style
+From lines at the front of messages.
+.It Li MaxHopCount= Ar N
+The maximum number of times a message is allowed to ``hop''
+before we decide it is in a loop.
+.It Li IgnoreDots
+Do not take dots on a line by themselves
+as a message terminator.
+.It Li SendMimeErrors
+Send error messages in MIME format.
+If not set, the DSN (Delivery Status Notification) SMTP extension
+is disabled.
+.It Li ConnectionCacheTimeout= Ns Ar timeout
+Set connection cache timeout.
+.It Li ConnectionCacheSize= Ns Ar N
+Set connection cache size.
+.It Li LogLevel= Ns Ar n
+The log level.
+.It Li MeToo
+Send to ``me'' (the sender) also if I am in an alias expansion.
+.It Li CheckAliases
+Validate the right hand side of aliases during a
+.Xr newaliases 1
+command.
+.It Li OldStyleHeaders
+If set, this message may have
+old style headers.
+If not set,
+this message is guaranteed to have new style headers
+(i.e., commas instead of spaces between addresses).
+If set, an adaptive algorithm is used that will correctly
+determine the header format in most cases.
+.It Li QueueDirectory= Ns Ar queuedir
+Select the directory in which to queue messages.
+.It Li StatusFile= Ns Ar file
+Save statistics in the named file.
+.It Li Timeout.queuereturn= Ns Ar time
+Set the timeout on undelivered messages in the queue to the specified time.
+After delivery has failed
+(e.g., because of a host being down)
+for this amount of time,
+failed messages will be returned to the sender.
+The default is five days.
+.It Li UserDatabaseSpec= Ns Ar userdatabase
+If set, a user database is consulted to get forwarding information.
+You can consider this an adjunct to the aliasing mechanism,
+except that the database is intended to be distributed;
+aliases are local to a particular host.
+This may not be available if your sendmail does not have the
+.Dv USERDB
+option compiled in.
+.It Li ForkEachJob
+Fork each job during queue runs.
+May be convenient on memory-poor machines.
+.It Li SevenBitInput
+Strip incoming messages to seven bits.
+.It Li EightBitMode= Ns Ar mode
+Set the handling of eight bit input to seven bit destinations to
+.Ar mode :
+.Li m
+(mimefy) will convert to seven-bit MIME format,
+.Li p
+(pass) will pass it as eight bits (but violates protocols),
+and
+.Li s
+(strict) will bounce the message.
+.It Li MinQueueAge= Ns Ar timeout
+Sets how long a job must ferment in the queue between attempts to send it.
+.It Li DefaultCharSet= Ns Ar charset
+Sets the default character set used to label 8-bit data
+that is not otherwise labelled.
+.It Li DialDelay= Ns Ar sleeptime
+If opening a connection fails,
+sleep for
+.Ar sleeptime
+seconds and try again.
+Useful on dial-on-demand sites.
+.It Li NoRecipientAction= Ns Ar action
+Set the behaviour when there are no recipient headers (To:, Cc: or Bcc:)
+in the message to
+.Ar action :
+.Li none
+leaves the message unchanged,
+.Li add-to
+adds a To: header with the envelope recipients,
+.Li add-apparently-to
+adds an Apparently-To: header with the envelope recipients,
+.Li add-bcc
+adds an empty Bcc: header, and
+.Li add-to-undisclosed
+adds a header reading
+.Ql "To: undisclosed-recipients:;" .
+.It Li MaxDaemonChildren= Ns Ar N
+Sets the maximum number of children that an incoming SMTP daemon
+will allow to spawn at any time to
+.Ar N .
+.It Li ConnectionRateThrottle= Ns Ar N
+Sets the maximum number of connections per second to the SMTP port to
+.Ar N .
+.El
+.Pp
+In aliases,
+the first character of a name may be
+a vertical bar to cause interpretation of
+the rest of the name as a command
+to pipe the mail to.
+It may be necessary to quote the name
+to keep
+.Nm sendmail
+from suppressing the blanks from between arguments.
+For example, a common alias is:
+.Pp
+.Bd -literal -offset indent -compact
+msgs: "|/usr/bin/msgs -s"
+.Ed
+.Pp
+Aliases may also have the syntax
+.Dq :include: Ns Ar filename
+to ask
+.Xr sendmail
+to read the named file for a list of recipients.
+For example, an alias such as:
+.Pp
+.Bd -literal -offset indent -compact
+poets: ":include:/usr/local/lib/poets.list"
+.Ed
+.Pp
+would read
+.Pa /usr/local/lib/poets.list
+for the list of addresses making up the group.
+.Pp
+.Nm Sendmail
+returns an exit status
+describing what it did.
+The codes are defined in
+.Aq Pa sysexits.h :
+.Bl -tag -width EX_UNAVAILABLE -compact -offset indent
+.It Dv EX_OK
+Successful completion on all addresses.
+.It Dv EX_NOUSER
+User name not recognized.
+.It Dv EX_UNAVAILABLE
+Catchall meaning necessary resources
+were not available.
+.It Dv EX_SYNTAX
+Syntax error in address.
+.It Dv EX_SOFTWARE
+Internal software error,
+including bad arguments.
+.It Dv EX_OSERR
+Temporary operating system error,
+such as
+.Dq cannot fork .
+.It Dv EX_NOHOST
+Host name not recognized.
+.It Dv EX_TEMPFAIL
+Message could not be sent immediately,
+but was queued.
+.El
+.Pp
+If invoked as
+.Nm newaliases ,
+.Nm sendmail
+will rebuild the alias database.
+If invoked as
+.Nm mailq ,
+.Nm sendmail
+will print the contents of the mail queue.
+.Sh FILES
+Except for the file
+.Pa /etc/sendmail.cf
+itself,
+the following pathnames are all specified in
+.Pa /etc/sendmail.cf.
+Thus,
+these values are only approximations.
+.Pp
+.Bl -tag -width /usr/lib/sendmail.fc -compact
+.It Pa /etc/aliases
+raw data for alias names
+.It Pa /etc/aliases.db
+data base of alias names
+.It Pa /etc/sendmail.cf
+configuration file
+.It Pa /etc/sendmail.hf
+help file
+.It Pa /var/log/sendmail.st
+collected statistics
+.It Pa /var/spool/mqueue/*
+temp files
+.It Pa /var/run/sendmail.pid
+The process id of the daemon
+.El
+.Sh SEE ALSO
+.Xr binmail 1 ,
+.Xr mail 1 ,
+.Xr rmail 1 ,
+.Xr syslog 3 ,
+.Xr aliases 5 ,
+.Xr mailaddr 7 ,
+.Xr rc 8 ;
+.Pp
+DARPA
+Internet Request For Comments
+.%T RFC819 ,
+.%T RFC821 ,
+.%T RFC822 .
+.Rs
+.%T "Sendmail \- An Internetwork Mail Router"
+.%V SMM
+.%N \&No. 9
+.Re
+.Rs
+.%T "Sendmail Installation and Operation Guide"
+.%V SMM
+.%N \&No. 8
+.Re
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.2 .
diff --git a/src/sendmail.h b/src/sendmail.h
new file mode 100644
index 0000000..fc3bf49
--- /dev/null
+++ b/src/sendmail.h
@@ -0,0 +1,1466 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sendmail.h	8.245 (Berkeley) 10/22/97
+ */
+
+/*
+**  SENDMAIL.H -- Global definitions for sendmail.
+*/
+
+# ifdef _DEFINE
+# define EXTERN
+# ifndef lint
+static char SmailSccsId[] =	"@(#)sendmail.h	8.245		10/22/97";
+# endif
+# else /*  _DEFINE */
+# define EXTERN extern
+# endif /* _DEFINE */
+
+# include <unistd.h>
+# include <stddef.h>
+# include <stdlib.h>
+# include <stdio.h>
+# include <ctype.h>
+# include <setjmp.h>
+# include <string.h>
+# include <time.h>
+# include <errno.h>
+# ifdef EX_OK
+#  undef EX_OK			/* for SVr4.2 SMP */
+# endif
+# include <sysexits.h>
+
+# include "conf.h"
+# include "useful.h"
+
+# ifdef LOG
+# include <syslog.h>
+# endif /* LOG */
+
+# if NETINET || NETUNIX || NETISO || NETNS || NETX25
+# include <sys/socket.h>
+# endif
+# if NETUNIX
+# include <sys/un.h>
+# endif
+# if NETINET
+# include <netinet/in.h>
+# endif
+# if NETISO
+# include <netiso/iso.h>
+# endif
+# if NETNS
+# include <netns/ns.h>
+# endif
+# if NETX25
+# include <netccitt/x25.h>
+# endif
+
+#if NAMED_BIND
+# include <arpa/nameser.h>
+# ifdef NOERROR
+#  undef NOERROR		/* avoid <sys/streams.h> conflict */
+# endif
+#endif
+
+/*
+**  Following are "sort of" configuration constants, but they should
+**  be pretty solid on most architectures today.  They have to be
+**  defined after <arpa/nameser.h> because some versions of that
+**  file also define them.  In all cases, we can't use sizeof because
+**  some systems (e.g., Crays) always treat everything as being at
+**  least 64 bits.
+*/
+
+#ifndef INADDRSZ
+# define INADDRSZ	4		/* size of an IPv4 address in bytes */
+#endif
+#ifndef INT16SZ
+# define INT16SZ	2		/* size of a 16 bit integer in bytes */
+#endif
+#ifndef INT32SZ
+# define INT32SZ	4		/* size of a 32 bit integer in bytes */
+#endif
+
+
+
+/* forward references for prototypes */
+typedef struct envelope	ENVELOPE;
+typedef struct mailer	MAILER;
+
+
+/*
+**  Data structure for bit maps.
+**
+**	Each bit in this map can be referenced by an ascii character.
+**	This is 256 possible bits, or 32 8-bit bytes.
+*/
+
+#define BITMAPBYTES	32	/* number of bytes in a bit map */
+#define BYTEBITS	8	/* number of bits in a byte */
+
+/* internal macros */
+#define _BITWORD(bit)	((bit) / (BYTEBITS * sizeof (int)))
+#define _BITBIT(bit)	(1 << ((bit) % (BYTEBITS * sizeof (int))))
+
+typedef int	BITMAP[BITMAPBYTES / sizeof (int)];
+
+/* test bit number N */
+#define bitnset(bit, map)	((map)[_BITWORD(bit)] & _BITBIT(bit))
+
+/* set bit number N */
+#define setbitn(bit, map)	(map)[_BITWORD(bit)] |= _BITBIT(bit)
+
+/* clear bit number N */
+#define clrbitn(bit, map)	(map)[_BITWORD(bit)] &= ~_BITBIT(bit)
+
+/* clear an entire bit map */
+#define clrbitmap(map)		bzero((char *) map, BITMAPBYTES)
+
+
+/*
+**  Utility macros
+*/
+
+/* return number of bytes left in a buffer */
+#define SPACELEFT(buf, ptr)	(sizeof buf - ((ptr) - buf))
+/*
+**  Address structure.
+**	Addresses are stored internally in this structure.
+*/
+
+struct address
+{
+	char		*q_paddr;	/* the printname for the address */
+	char		*q_user;	/* user name */
+	char		*q_ruser;	/* real user name, or NULL if q_user */
+	char		*q_host;	/* host name */
+	struct mailer	*q_mailer;	/* mailer to use */
+	u_long		q_flags;	/* status flags, see below */
+	uid_t		q_uid;		/* user-id of receiver (if known) */
+	gid_t		q_gid;		/* group-id of receiver (if known) */
+	char		*q_home;	/* home dir (local mailer only) */
+	char		*q_fullname;	/* full name if known */
+	struct address	*q_next;	/* chain */
+	struct address	*q_alias;	/* address this results from */
+	char		*q_owner;	/* owner of q_alias */
+	struct address	*q_tchain;	/* temporary use chain */
+	char		*q_orcpt;	/* ORCPT parameter from RCPT TO: line */
+	char		*q_status;	/* status code for DSNs */
+	char		*q_rstatus;	/* remote status message for DSNs */
+	time_t		q_statdate;	/* date of status messages */
+	char		*q_statmta;	/* MTA generating q_rstatus */
+	short		q_specificity;	/* how "specific" this address is */
+};
+
+typedef struct address ADDRESS;
+
+# define QDONTSEND	0x00000001	/* don't send to this address */
+# define QBADADDR	0x00000002	/* this address is verified bad */
+# define QGOODUID	0x00000004	/* the q_uid q_gid fields are good */
+# define QPRIMARY	0x00000008	/* set from RCPT or argv */
+# define QQUEUEUP	0x00000010	/* queue for later transmission */
+# define QSENT		0x00000020	/* has been successfully delivered */
+# define QNOTREMOTE	0x00000040	/* address not for remote forwarding */
+# define QSELFREF	0x00000080	/* this address references itself */
+# define QVERIFIED	0x00000100	/* verified, but not expanded */
+# define QBOGUSSHELL	0x00000400	/* user has no valid shell listed */
+# define QUNSAFEADDR	0x00000800	/* address aquired via unsafe path */
+# define QPINGONSUCCESS	0x00001000	/* give return on successful delivery */
+# define QPINGONFAILURE	0x00002000	/* give return on failure */
+# define QPINGONDELAY	0x00004000	/* give return on message delay */
+# define QHASNOTIFY	0x00008000	/* propogate notify parameter */
+# define QRELAYED	0x00010000	/* DSN: relayed to non-DSN aware sys */
+# define QEXPANDED	0x00020000	/* DSN: undergone list expansion */
+# define QDELIVERED	0x00040000	/* DSN: successful final delivery */
+# define QDELAYED	0x00080000	/* DSN: message delayed */
+# define QTHISPASS	0x40000000	/* temp: address set this pass */
+# define QRCPTOK	0x80000000	/* recipient() processed address */
+
+# define Q_PINGFLAGS	(QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY)
+
+# define NULLADDR	((ADDRESS *) NULL)
+
+/* functions */
+extern ADDRESS	*parseaddr __P((char *, ADDRESS *, int, int, char **, ENVELOPE *));
+extern ADDRESS	*buildaddr __P((char **, ADDRESS *, int, ENVELOPE *));
+extern ADDRESS	*recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
+extern char	**prescan __P((char *, int, char[], int, char **, u_char *));
+extern int	rewrite __P((char **, int, int, ENVELOPE *));
+extern char	*remotename __P((char *, MAILER *, int, int *, ENVELOPE *));
+extern ADDRESS	*getctladdr __P((ADDRESS *));
+extern bool	sameaddr __P((ADDRESS *, ADDRESS *));
+extern bool	emptyaddr __P((ADDRESS *));
+extern void	printaddr __P((ADDRESS *, bool));
+extern void	cataddr __P((char **, char **, char *, int, int));
+extern int	sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *));
+/*
+**  Mailer definition structure.
+**	Every mailer known to the system is declared in this
+**	structure.  It defines the pathname of the mailer, some
+**	flags associated with it, and the argument vector to
+**	pass to it.  The flags are defined in conf.c
+**
+**	The argument vector is expanded before actual use.  All
+**	words except the first are passed through the macro
+**	processor.
+*/
+
+struct mailer
+{
+	char	*m_name;	/* symbolic name of this mailer */
+	char	*m_mailer;	/* pathname of the mailer to use */
+	char	*m_mtatype;	/* type of this MTA */
+	char	*m_addrtype;	/* type for addresses */
+	char	*m_diagtype;	/* type for diagnostics */
+	BITMAP	m_flags;	/* status flags, see below */
+	short	m_mno;		/* mailer number internally */
+	short	m_nice;		/* niceness to run at (mostly for prog) */
+	char	**m_argv;	/* template argument vector */
+	short	m_sh_rwset;	/* rewrite set: sender header addresses */
+	short	m_se_rwset;	/* rewrite set: sender envelope addresses */
+	short	m_rh_rwset;	/* rewrite set: recipient header addresses */
+	short	m_re_rwset;	/* rewrite set: recipient envelope addresses */
+	char	*m_eol;		/* end of line string */
+	long	m_maxsize;	/* size limit on message to this mailer */
+	int	m_linelimit;	/* max # characters per line */
+	char	*m_execdir;	/* directory to chdir to before execv */
+	uid_t	m_uid;		/* UID to run as */
+	gid_t	m_gid;		/* GID to run as */
+	char	*m_defcharset;	/* default character set */
+};
+
+/* bits for m_flags */
+# define M_ESMTP	'a'	/* run Extended SMTP protocol */
+# define M_ALIASABLE	'A'	/* user can be LHS of an alias */
+# define M_BLANKEND	'b'	/* ensure blank line at end of message */
+# define M_NOCOMMENT	'c'	/* don't include comment part of address */
+# define M_CANONICAL	'C'	/* make addresses canonical "u@dom" */
+# define M_NOBRACKET	'd'	/* never angle bracket envelope route-addrs */
+		/*	'D'	   CF: include Date: */
+# define M_EXPENSIVE	'e'	/* it costs to use this mailer.... */
+# define M_ESCFROM	'E'	/* escape From lines to >From */
+# define M_FOPT		'f'	/* mailer takes picky -f flag */
+		/*	'F'	   CF: include From: or Resent-From: */
+# define M_NO_NULL_FROM	'g'	/* sender of errors should be $g */
+# define M_HST_UPPER	'h'	/* preserve host case distinction */
+# define M_PREHEAD	'H'	/* MAIL11V3: preview headers */
+# define M_UDBENVELOPE	'i'	/* do udbsender rewriting on envelope */
+# define M_INTERNAL	'I'	/* SMTP to another sendmail site */
+# define M_UDBRECIPIENT	'j'	/* do udbsender rewriting on recipient lines */
+# define M_NOLOOPCHECK	'k'	/* don't check for loops in HELO command */
+# define M_CHUNKING	'K'	/* CHUNKING: reserved for future use */
+# define M_LOCALMAILER	'l'	/* delivery is to this host */
+# define M_LIMITS	'L'	/* must enforce SMTP line limits */
+# define M_MUSER	'm'	/* can handle multiple users at once */
+		/*	'M'	   CF: include Message-Id: */
+# define M_NHDR		'n'	/* don't insert From line */
+# define M_MANYSTATUS	'N'	/* MAIL11V3: DATA returns multi-status */
+# define M_RUNASRCPT	'o'	/* always run mailer as recipient */
+# define M_FROMPATH	'p'	/* use reverse-path in MAIL FROM: */
+		/*	'P'	   CF: include Return-Path: */
+# define M_VRFY250	'q'	/* VRFY command returns 250 instead of 252 */
+# define M_ROPT		'r'	/* mailer takes picky -r flag */
+# define M_SECURE_PORT	'R'	/* try to send on a reserved TCP port */
+# define M_STRIPQ	's'	/* strip quote chars from user/host */
+# define M_SPECIFIC_UID	'S'	/* run as specific uid/gid */
+# define M_USR_UPPER	'u'	/* preserve user case distinction */
+# define M_UGLYUUCP	'U'	/* this wants an ugly UUCP from line */
+# define M_CONTENT_LEN	'v'	/* add Content-Length: header (SVr4) */
+		/*	'V'	   UIUC: !-relativize all addresses */
+# define M_HASPWENT	'w'	/* check for /etc/passwd entry */
+		/*	'x'	   CF: include Full-Name: */
+# define M_XDOT		'X'	/* use hidden-dot algorithm */
+# define M_LMTP		'z'	/* run Local Mail Transport Protocol */
+# define M_NOMX		'0'	/* turn off MX lookups */
+# define M_NONULLS	'1'	/* don't send null bytes */
+# define M_EBCDIC	'3'	/* extend Q-P encoding for EBCDIC */
+# define M_TRYRULESET5	'5'	/* use ruleset 5 after local aliasing */
+# define M_7BITHDRS	'6'	/* strip headers to 7 bits even in 8 bit path */
+# define M_7BITS	'7'	/* use 7-bit path */
+# define M_8BITS	'8'	/* force "just send 8" behaviour */
+# define M_MAKE8BIT	'9'	/* convert 7 -> 8 bit if appropriate */
+# define M_CHECKINCLUDE	':'	/* check for :include: files */
+# define M_CHECKPROG	'|'	/* check for |program addresses */
+# define M_CHECKFILE	'/'	/* check for /file addresses */
+# define M_CHECKUDB	'@'	/* user can be user database key */
+# define M_CHECKHDIR	'~'	/* SGI: check for valid home directory */
+
+EXTERN MAILER	*Mailer[MAXMAILERS+1];
+
+EXTERN MAILER	*LocalMailer;		/* ptr to local mailer */
+EXTERN MAILER	*ProgMailer;		/* ptr to program mailer */
+EXTERN MAILER	*FileMailer;		/* ptr to *file* mailer */
+EXTERN MAILER	*InclMailer;		/* ptr to *include* mailer */
+/*
+**  Information about currently open connections to mailers, or to
+**  hosts that we have looked up recently.
+*/
+
+# define MCI		struct mailer_con_info
+
+MCI
+{
+	short		mci_flags;	/* flag bits, see below */
+	short		mci_errno;	/* error number on last connection */
+	short		mci_herrno;	/* h_errno from last DNS lookup */
+	short		mci_exitstat;	/* exit status from last connection */
+	short		mci_state;	/* SMTP state */
+	long		mci_maxsize;	/* max size this server will accept */
+	FILE		*mci_in;	/* input side of connection */
+	FILE		*mci_out;	/* output side of connection */
+	pid_t		mci_pid;	/* process id of subordinate proc */
+	char		*mci_phase;	/* SMTP phase string */
+	struct mailer	*mci_mailer;	/* ptr to the mailer for this conn */
+	char		*mci_host;	/* host name */
+	char		*mci_status;	/* DSN status to be copied to addrs */
+	char		*mci_rstatus;	/* SMTP status to be copied to addrs */
+	time_t		mci_lastuse;	/* last usage time */
+	FILE		*mci_statfile;	/* long term status file */
+};
+
+
+/* flag bits */
+#define MCIF_VALID	0x0001		/* this entry is valid */
+#define MCIF_TEMP	0x0002		/* don't cache this connection */
+#define MCIF_CACHED	0x0004		/* currently in open cache */
+#define MCIF_ESMTP	0x0008		/* this host speaks ESMTP */
+#define MCIF_EXPN	0x0010		/* EXPN command supported */
+#define MCIF_SIZE	0x0020		/* SIZE option supported */
+#define MCIF_8BITMIME	0x0040		/* BODY=8BITMIME supported */
+#define MCIF_7BIT	0x0080		/* strip this message to 7 bits */
+#define MCIF_MULTSTAT	0x0100		/* MAIL11V3: handles MULT status */
+#define MCIF_INHEADER	0x0200		/* currently outputing header */
+#define MCIF_CVT8TO7	0x0400		/* convert from 8 to 7 bits */
+#define MCIF_DSN	0x0800		/* DSN extension supported */
+#define MCIF_8BITOK	0x1000		/* OK to send 8 bit characters */
+#define MCIF_CVT7TO8	0x2000		/* convert from 7 to 8 bits */
+#define MCIF_INMIME	0x4000		/* currently reading MIME header */
+
+/* states */
+#define MCIS_CLOSED	0		/* no traffic on this connection */
+#define MCIS_OPENING	1		/* sending initial protocol */
+#define MCIS_OPEN	2		/* open, initial protocol sent */
+#define MCIS_ACTIVE	3		/* message being sent */
+#define MCIS_QUITING	4		/* running quit protocol */
+#define MCIS_SSD	5		/* service shutting down */
+#define MCIS_ERROR	6		/* I/O error on connection */
+
+/* functions */
+extern MCI	*mci_get __P((char *, MAILER *));
+extern void	mci_cache __P((MCI *));
+extern void	mci_flush __P((bool, MCI *));
+extern void	mci_dump __P((MCI *, bool));
+extern void	mci_dump_all __P((bool));
+extern MCI	**mci_scan __P((MCI *));
+extern int 	mci_traverse_persistent __P((int (), char *));
+extern int	mci_print_persistent __P((char *, char *));
+extern int	mci_purge_persistent __P((char *, char *));
+extern int	mci_lock_host __P((MCI *));
+extern void	mci_unlock_host __P((MCI *));
+extern int	mci_lock_host_statfile __P((MCI *));
+extern void 	mci_store_persistent __P((MCI *));
+extern int 	mci_read_persistent __P((FILE *, MCI *));
+/*
+**  Header structure.
+**	This structure is used internally to store header items.
+*/
+
+struct header
+{
+	char		*h_field;	/* the name of the field */
+	char		*h_value;	/* the value of that field */
+	struct header	*h_link;	/* the next header */
+	u_short		h_flags;	/* status bits, see below */
+	BITMAP		h_mflags;	/* m_flags bits needed */
+};
+
+typedef struct header	HDR;
+
+/*
+**  Header information structure.
+**	Defined in conf.c, this struct declares the header fields
+**	that have some magic meaning.
+*/
+
+struct hdrinfo
+{
+	char	*hi_field;	/* the name of the field */
+	u_short	hi_flags;	/* status bits, see below */
+	char	*hi_ruleset;	/* validity check ruleset */
+};
+
+extern struct hdrinfo	HdrInfo[];
+
+/* bits for h_flags and hi_flags */
+# define H_EOH		0x0001	/* this field terminates header */
+# define H_RCPT		0x0002	/* contains recipient addresses */
+# define H_DEFAULT	0x0004	/* if another value is found, drop this */
+# define H_RESENT	0x0008	/* this address is a "Resent-..." address */
+# define H_CHECK	0x0010	/* check h_mflags against m_flags */
+# define H_ACHECK	0x0020	/* ditto, but always (not just default) */
+# define H_FORCE	0x0040	/* force this field, even if default */
+# define H_TRACE	0x0080	/* this field contains trace information */
+# define H_FROM		0x0100	/* this is a from-type field */
+# define H_VALID	0x0200	/* this field has a validated value */
+# define H_RECEIPTTO	0x0400	/* this field has return receipt info */
+# define H_ERRORSTO	0x0800	/* this field has error address info */
+# define H_CTE		0x1000	/* this field is a content-transfer-encoding */
+# define H_CTYPE	0x2000	/* this is a content-type field */
+# define H_BCC		0x4000	/* Bcc: header: strip value or delete */
+# define H_ENCODABLE	0x8000	/* field can be RFC 1522 encoded */
+
+/* functions */
+extern void	addheader __P((char *, char *, HDR **));
+extern char	*hvalue __P((char *, HDR *));
+extern void	commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *));
+extern void	put_vanilla_header __P((HDR *, char *, MCI *));
+extern void	eatheader __P((ENVELOPE *, bool));
+extern int	chompheader __P((char *, bool, HDR **, ENVELOPE *));
+/*
+**  Envelope structure.
+**	This structure defines the message itself.  There is usually
+**	only one of these -- for the message that we originally read
+**	and which is our primary interest -- but other envelopes can
+**	be generated during processing.  For example, error messages
+**	will have their own envelope.
+*/
+
+struct envelope
+{
+	HDR		*e_header;	/* head of header list */
+	long		e_msgpriority;	/* adjusted priority of this message */
+	time_t		e_ctime;	/* time message appeared in the queue */
+	char		*e_to;		/* the target person */
+	ADDRESS		e_from;		/* the person it is from */
+	char		*e_sender;	/* e_from.q_paddr w comments stripped */
+	char		**e_fromdomain;	/* the domain part of the sender */
+	ADDRESS		*e_sendqueue;	/* list of message recipients */
+	ADDRESS		*e_errorqueue;	/* the queue for error responses */
+	long		e_msgsize;	/* size of the message in bytes */
+	long		e_flags;	/* flags, see below */
+	int		e_nrcpts;	/* number of recipients */
+	short		e_class;	/* msg class (priority, junk, etc.) */
+	short		e_hopcount;	/* number of times processed */
+	short		e_nsent;	/* number of sends since checkpoint */
+	short		e_sendmode;	/* message send mode */
+	short		e_errormode;	/* error return mode */
+	short		e_timeoutclass;	/* message timeout class */
+	void		(*e_puthdr)__P((MCI *, HDR *, ENVELOPE *));
+					/* function to put header of message */
+	void		(*e_putbody)__P((MCI *, ENVELOPE *, char *));
+					/* function to put body of message */
+	struct envelope	*e_parent;	/* the message this one encloses */
+	struct envelope *e_sibling;	/* the next envelope of interest */
+	char		*e_bodytype;	/* type of message body */
+	FILE		*e_dfp;		/* temporary file */
+	char		*e_id;		/* code for this entry in queue */
+	FILE		*e_xfp;		/* transcript file */
+	FILE		*e_lockfp;	/* the lock file for this message */
+	char		*e_message;	/* error message */
+	char		*e_statmsg;	/* stat msg (changes per delivery) */
+	char		*e_msgboundary;	/* MIME-style message part boundary */
+	char		*e_origrcpt;	/* original recipient (one only) */
+	char		*e_envid;	/* envelope id from MAIL FROM: line */
+	char		*e_status;	/* DSN status for this message */
+	time_t		e_dtime;	/* time of last delivery attempt */
+	int		e_ntries;	/* number of delivery attempts */
+	dev_t		e_dfdev;	/* df file's device, for crash recov */
+	ino_t		e_dfino;	/* df file's ino, for crash recovery */
+	char		*e_macro[256];	/* macro definitions */
+};
+
+/* values for e_flags */
+#define EF_OLDSTYLE	0x0000001	/* use spaces (not commas) in hdrs */
+#define EF_INQUEUE	0x0000002	/* this message is fully queued */
+#define EF_NO_BODY_RETN	0x0000004	/* omit message body on error */
+#define EF_CLRQUEUE	0x0000008	/* disk copy is no longer needed */
+#define EF_SENDRECEIPT	0x0000010	/* send a return receipt */
+#define EF_FATALERRS	0x0000020	/* fatal errors occured */
+#define EF_DELETE_BCC	0x0000040	/* delete Bcc: headers entirely */
+#define EF_RESPONSE	0x0000080	/* this is an error or return receipt */
+#define EF_RESENT	0x0000100	/* this message is being forwarded */
+#define EF_VRFYONLY	0x0000200	/* verify only (don't expand aliases) */
+#define EF_WARNING	0x0000400	/* warning message has been sent */
+#define EF_QUEUERUN	0x0000800	/* this envelope is from queue */
+#define EF_GLOBALERRS	0x0001000	/* treat errors as global */
+#define EF_PM_NOTIFY	0x0002000	/* send return mail to postmaster */
+#define EF_METOO	0x0004000	/* send to me too */
+#define EF_LOGSENDER	0x0008000	/* need to log the sender */
+#define EF_NORECEIPT	0x0010000	/* suppress all return-receipts */
+#define EF_HAS8BIT	0x0020000	/* at least one 8-bit char in body */
+#define EF_NL_NOT_EOL	0x0040000	/* don't accept raw NL as EOLine */
+#define EF_CRLF_NOT_EOL	0x0080000	/* don't accept CR-LF as EOLine */
+#define EF_RET_PARAM	0x0100000	/* RCPT command had RET argument */
+#define EF_HAS_DF	0x0200000	/* set when df file is instantiated */
+#define EF_IS_MIME	0x0400000	/* really is a MIME message */
+#define EF_DONT_MIME	0x0800000	/* never MIME this message */
+
+EXTERN ENVELOPE	*CurEnv;	/* envelope currently being processed */
+
+/* functions */
+extern ENVELOPE	*newenvelope __P((ENVELOPE *, ENVELOPE *));
+extern void	dropenvelope __P((ENVELOPE *, bool));
+extern void	clearenvelope __P((ENVELOPE *, bool));
+
+extern void	putheader __P((MCI *, HDR *, ENVELOPE *));
+extern void	putbody __P((MCI *, ENVELOPE *, char *));
+/*
+**  Message priority classes.
+**
+**	The message class is read directly from the Priority: header
+**	field in the message.
+**
+**	CurEnv->e_msgpriority is the number of bytes in the message plus
+**	the creation time (so that jobs ``tend'' to be ordered correctly),
+**	adjusted by the message class, the number of recipients, and the
+**	amount of time the message has been sitting around.  This number
+**	is used to order the queue.  Higher values mean LOWER priority.
+**
+**	Each priority class point is worth WkClassFact priority points;
+**	each recipient is worth WkRecipFact priority points.  Each time
+**	we reprocess a message the priority is adjusted by WkTimeFact.
+**	WkTimeFact should normally decrease the priority so that jobs
+**	that have historically failed will be run later; thanks go to
+**	Jay Lepreau at Utah for pointing out the error in my thinking.
+**
+**	The "class" is this number, unadjusted by the age or size of
+**	this message.  Classes with negative representations will have
+**	error messages thrown away if they are not local.
+*/
+
+struct priority
+{
+	char	*pri_name;	/* external name of priority */
+	int	pri_val;	/* internal value for same */
+};
+
+EXTERN struct priority	Priorities[MAXPRIORITIES];
+EXTERN int		NumPriorities;	/* pointer into Priorities */
+/*
+**  Rewrite rules.
+*/
+
+struct rewrite
+{
+	char	**r_lhs;	/* pattern match */
+	char	**r_rhs;	/* substitution value */
+	struct rewrite	*r_next;/* next in chain */
+};
+
+EXTERN struct rewrite	*RewriteRules[MAXRWSETS];
+
+/*
+**  Special characters in rewriting rules.
+**	These are used internally only.
+**	The COND* rules are actually used in macros rather than in
+**		rewriting rules, but are given here because they
+**		cannot conflict.
+*/
+
+/* left hand side items */
+# define MATCHZANY	((u_char)0220)	/* match zero or more tokens */
+# define MATCHANY	((u_char)0221)	/* match one or more tokens */
+# define MATCHONE	((u_char)0222)	/* match exactly one token */
+# define MATCHCLASS	((u_char)0223)	/* match one token in a class */
+# define MATCHNCLASS	((u_char)0224)	/* match anything not in class */
+# define MATCHREPL	((u_char)0225)	/* replacement on RHS for above */
+
+/* right hand side items */
+# define CANONNET	((u_char)0226)	/* canonical net, next token */
+# define CANONHOST	((u_char)0227)	/* canonical host, next token */
+# define CANONUSER	((u_char)0230)	/* canonical user, next N tokens */
+# define CALLSUBR	((u_char)0231)	/* call another rewriting set */
+
+/* conditionals in macros */
+# define CONDIF		((u_char)0232)	/* conditional if-then */
+# define CONDELSE	((u_char)0233)	/* conditional else */
+# define CONDFI		((u_char)0234)	/* conditional fi */
+
+/* bracket characters for host name lookup */
+# define HOSTBEGIN	((u_char)0235)	/* hostname lookup begin */
+# define HOSTEND	((u_char)0236)	/* hostname lookup end */
+
+/* bracket characters for generalized lookup */
+# define LOOKUPBEGIN	((u_char)0205)	/* generalized lookup begin */
+# define LOOKUPEND	((u_char)0206)	/* generalized lookup end */
+
+/* macro substitution character */
+# define MACROEXPAND	((u_char)0201)	/* macro expansion */
+# define MACRODEXPAND	((u_char)0202)	/* deferred macro expansion */
+
+/* to make the code clearer */
+# define MATCHZERO	CANONHOST
+
+/* external <==> internal mapping table */
+struct metamac
+{
+	char	metaname;	/* external code (after $) */
+	u_char	metaval;	/* internal code (as above) */
+};
+
+/* values for macros with external names only */
+# define MID_OPMODE	0202	/* operation mode */
+
+/* functions */
+extern void	expand __P((char *, char *, size_t, ENVELOPE *));
+extern void	define __P((int, char *, ENVELOPE *));
+extern char	*macvalue __P((int, ENVELOPE *));
+extern char	*macname __P((int));
+extern int	macid __P((char *, char **));
+/*
+**  Name canonification short circuit.
+**
+**	If the name server for a host is down, the process of trying to
+**	canonify the name can hang.  This is similar to (but alas, not
+**	identical to) looking up the name for delivery.  This stab type
+**	caches the result of the name server lookup so we don't hang
+**	multiple times.
+*/
+
+#define NAMECANON	struct _namecanon
+
+NAMECANON
+{
+	short		nc_errno;	/* cached errno */
+	short		nc_herrno;	/* cached h_errno */
+	short		nc_stat;	/* cached exit status code */
+	short		nc_flags;	/* flag bits */
+	char		*nc_cname;	/* the canonical name */
+};
+
+/* values for nc_flags */
+#define NCF_VALID	0x0001	/* entry valid */
+/*
+**  Mapping functions
+**
+**	These allow arbitrary mappings in the config file.  The idea
+**	(albeit not the implementation) comes from IDA sendmail.
+*/
+
+# define MAPCLASS	struct _mapclass
+# define MAP		struct _map
+# define MAXMAPACTIONS	3		/* size of map_actions array */
+
+
+/*
+**  An actual map.
+*/
+
+MAP
+{
+	MAPCLASS	*map_class;	/* the class of this map */
+	char		*map_mname;	/* name of this map */
+	long		map_mflags;	/* flags, see below */
+	char		*map_file;	/* the (nominal) filename */
+	ARBPTR_T	map_db1;	/* the open database ptr */
+	ARBPTR_T	map_db2;	/* an "extra" database pointer */
+	char		*map_keycolnm;	/* key column name */
+	char		*map_valcolnm;	/* value column name */
+	u_char		map_keycolno;	/* key column number */
+	u_char		map_valcolno;	/* value column number */
+	char		map_coldelim;	/* column delimiter */
+	char		*map_app;	/* to append to successful matches */
+	char		*map_domain;	/* the (nominal) NIS domain */
+	char		*map_rebuild;	/* program to run to do auto-rebuild */
+	time_t		map_mtime;	/* last database modification time */
+	int		map_lockfd;	/* auxiliary lock file descriptor */
+	short		map_specificity;	/* specificity of aliases */
+	MAP		*map_stack[MAXMAPSTACK];   /* list for stacked maps */
+	short		map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */
+};
+
+/* bit values for map_mflags */
+# define MF_VALID	0x00000001	/* this entry is valid */
+# define MF_INCLNULL	0x00000002	/* include null byte in key */
+# define MF_OPTIONAL	0x00000004	/* don't complain if map not found */
+# define MF_NOFOLDCASE	0x00000008	/* don't fold case in keys */
+# define MF_MATCHONLY	0x00000010	/* don't use the map value */
+# define MF_OPEN	0x00000020	/* this entry is open */
+# define MF_WRITABLE	0x00000040	/* open for writing */
+# define MF_ALIAS	0x00000080	/* this is an alias file */
+# define MF_TRY0NULL	0x00000100	/* try with no null byte */
+# define MF_TRY1NULL	0x00000200	/* try with the null byte */
+# define MF_LOCKED	0x00000400	/* this map is currently locked */
+# define MF_ALIASWAIT	0x00000800	/* alias map in aliaswait state */
+# define MF_IMPL_HASH	0x00001000	/* implicit: underlying hash database */
+# define MF_IMPL_NDBM	0x00002000	/* implicit: underlying NDBM database */
+# define MF_UNSAFEDB	0x00004000	/* this map is world writable */
+# define MF_APPEND	0x00008000	/* append new entry on rebuiled */
+# define MF_KEEPQUOTES	0x00010000	/* don't dequote key before lookup */
+# define MF_NODEFER	0x00020000	/* don't defer if map lookup fails */
+
+/* indices for map_actions */
+# define MA_NOTFOUND	0		/* member map returned "not found" */
+# define MA_UNAVAIL	1		/* member map is not available */
+# define MA_TRYAGAIN	2		/* member map returns temp failure */
+
+/*
+**  The class of a map -- essentially the functions to call
+*/
+
+MAPCLASS
+{
+	char	*map_cname;		/* name of this map class */
+	char	*map_ext;		/* extension for database file */
+	short	map_cflags;		/* flag bits, see below */
+	bool	(*map_parse)__P((MAP *, char *));
+					/* argument parsing function */
+	char	*(*map_lookup)__P((MAP *, char *, char **, int *));
+					/* lookup function */
+	void	(*map_store)__P((MAP *, char *, char *));
+					/* store function */
+	bool	(*map_open)__P((MAP *, int));
+					/* open function */
+	void	(*map_close)__P((MAP *));
+					/* close function */
+};
+
+/* bit values for map_cflags */
+#define MCF_ALIASOK	0x0001		/* can be used for aliases */
+#define MCF_ALIASONLY	0x0002		/* usable only for aliases */
+#define MCF_REBUILDABLE	0x0004		/* can rebuild alias files */
+#define MCF_OPTFILE	0x0008		/* file name is optional */
+
+/* functions */
+extern char	*map_rewrite __P((MAP *, const char *, int, char **));
+extern MAP	*makemapentry __P((char *));
+extern void	initmaps __P((bool, ENVELOPE *));
+/*
+**  Symbol table definitions
+*/
+
+struct symtab
+{
+	char		*s_name;	/* name to be entered */
+	short		s_type;		/* general type (see below) */
+	short		s_len;		/* length of this entry */
+	struct symtab	*s_next;	/* pointer to next in chain */
+	union
+	{
+		BITMAP		sv_class;	/* bit-map of word classes */
+		ADDRESS		*sv_addr;	/* pointer to address header */
+		MAILER		*sv_mailer;	/* pointer to mailer */
+		char		*sv_alias;	/* alias */
+		MAPCLASS	sv_mapclass;	/* mapping function class */
+		MAP		sv_map;		/* mapping function */
+		char		*sv_hostsig;	/* host signature */
+		MCI		sv_mci;		/* mailer connection info */
+		NAMECANON	sv_namecanon;	/* canonical name cache */
+		int		sv_macro;	/* macro name => id mapping */
+		int		sv_ruleset;	/* ruleset index */
+		struct hdrinfo	sv_header;	/* header metainfo */
+		char		*sv_service[MAXMAPSTACK]; /* service switch */
+	}	s_value;
+};
+
+typedef struct symtab	STAB;
+
+/* symbol types */
+# define ST_UNDEF	0	/* undefined type */
+# define ST_CLASS	1	/* class map */
+# define ST_ADDRESS	2	/* an address in parsed format */
+# define ST_MAILER	3	/* a mailer header */
+# define ST_ALIAS	4	/* an alias */
+# define ST_MAPCLASS	5	/* mapping function class */
+# define ST_MAP		6	/* mapping function */
+# define ST_HOSTSIG	7	/* host signature */
+# define ST_NAMECANON	8	/* cached canonical name */
+# define ST_MACRO	9	/* macro name to id mapping */
+# define ST_RULESET	10	/* ruleset index */
+# define ST_SERVICE	11	/* service switch entry */
+# define ST_HEADER	12	/* special header flags */
+# define ST_MCI		16	/* mailer connection info (offset) */
+
+# define s_class	s_value.sv_class
+# define s_address	s_value.sv_addr
+# define s_mailer	s_value.sv_mailer
+# define s_alias	s_value.sv_alias
+# define s_mci		s_value.sv_mci
+# define s_mapclass	s_value.sv_mapclass
+# define s_hostsig	s_value.sv_hostsig
+# define s_map		s_value.sv_map
+# define s_namecanon	s_value.sv_namecanon
+# define s_macro	s_value.sv_macro
+# define s_ruleset	s_value.sv_ruleset
+# define s_service	s_value.sv_service
+# define s_header	s_value.sv_header
+
+extern STAB		*stab __P((char *, int, int));
+extern void		stabapply __P((void (*)(STAB *, int), int));
+
+/* opcodes to stab */
+# define ST_FIND	0	/* find entry */
+# define ST_ENTER	1	/* enter if not there */
+/*
+**  STRUCT EVENT -- event queue.
+**
+**	Maintained in sorted order.
+**
+**	We store the pid of the process that set this event to insure
+**	that when we fork we will not take events intended for the parent.
+*/
+
+struct event
+{
+	time_t		ev_time;	/* time of the function call */
+	void		(*ev_func)__P((int));
+					/* function to call */
+	int		ev_arg;		/* argument to ev_func */
+	int		ev_pid;		/* pid that set this event */
+	struct event	*ev_link;	/* link to next item */
+};
+
+typedef struct event	EVENT;
+
+EXTERN EVENT	*EventQueue;		/* head of event queue */
+
+/* functions */
+extern EVENT	*setevent __P((time_t, void(*)(), int));
+extern void	clrevent __P((EVENT *));
+/*
+**  Operation, send, error, and MIME modes
+**
+**	The operation mode describes the basic operation of sendmail.
+**	This can be set from the command line, and is "send mail" by
+**	default.
+**
+**	The send mode tells how to send mail.  It can be set in the
+**	configuration file.  It's setting determines how quickly the
+**	mail will be delivered versus the load on your system.  If the
+**	-v (verbose) flag is given, it will be forced to SM_DELIVER
+**	mode.
+**
+**	The error mode tells how to return errors.
+*/
+
+EXTERN char	OpMode;		/* operation mode, see below */
+
+#define MD_DELIVER	'm'		/* be a mail sender */
+#define MD_SMTP		's'		/* run SMTP on standard input */
+#define MD_ARPAFTP	'a'		/* obsolete ARPANET mode (Grey Book) */
+#define MD_DAEMON	'd'		/* run as a daemon */
+#define MD_FGDAEMON	'D'		/* run daemon in foreground */
+#define MD_VERIFY	'v'		/* verify: don't collect or deliver */
+#define MD_TEST		't'		/* test mode: resolve addrs only */
+#define MD_INITALIAS	'i'		/* initialize alias database */
+#define MD_PRINT	'p'		/* print the queue */
+#define MD_FREEZE	'z'		/* freeze the configuration file */
+#define MD_HOSTSTAT	'h'		/* print persistent host stat info */
+#define MD_PURGESTAT	'H'		/* purge persistent host stat info */
+
+/* values for e_sendmode -- send modes */
+#define SM_DELIVER	'i'		/* interactive delivery */
+#define SM_FORK		'b'		/* deliver in background */
+#define SM_QUEUE	'q'		/* queue, don't deliver */
+#define SM_DEFER	'd'		/* defer map lookups as well as queue */
+#define SM_VERIFY	'v'		/* verify only (used internally) */
+
+/* used only as a parameter to sendall */
+#define SM_DEFAULT	'\0'		/* unspecified, use SendMode */
+
+
+/* values for e_errormode -- error handling modes */
+#define EM_PRINT	'p'		/* print errors */
+#define EM_MAIL		'm'		/* mail back errors */
+#define EM_WRITE	'w'		/* write back errors */
+#define EM_BERKNET	'e'		/* special berknet processing */
+#define EM_QUIET	'q'		/* don't print messages (stat only) */
+
+
+/* MIME processing mode */
+EXTERN int	MimeMode;
+
+/* bit values for MimeMode */
+#define MM_CVTMIME	0x0001		/* convert 8 to 7 bit MIME */
+#define MM_PASS8BIT	0x0002		/* just send 8 bit data blind */
+#define MM_MIME8BIT	0x0004		/* convert 8-bit data to MIME */
+
+/* queue sorting order algorithm */
+EXTERN int	QueueSortOrder;
+
+#define QS_BYPRIORITY	0		/* sort by message priority */
+#define QS_BYHOST	1		/* sort by first host name */
+#define QS_BYTIME	2		/* sort by submission time */
+
+
+/* how to handle messages without any recipient addresses */
+EXTERN int		NoRecipientAction;
+
+#define NRA_NO_ACTION		0	/* just leave it as is */
+#define NRA_ADD_TO		1	/* add To: header */
+#define NRA_ADD_APPARENTLY_TO	2	/* add Apparently-To: header */
+#define NRA_ADD_BCC		3	/* add empty Bcc: header */
+#define NRA_ADD_TO_UNDISCLOSED	4	/* add To: undisclosed:; header */
+
+
+/* flags to putxline */
+#define PXLF_NOTHINGSPECIAL	0	/* no special mapping */
+#define PXLF_MAPFROM		0x0001	/* map From_ to >From_ */
+#define PXLF_STRIP8BIT		0x0002	/* strip 8th bit */
+#define PXLF_HEADER		0x0004	/* map newlines in headers */
+/*
+**  Additional definitions
+*/
+
+
+/*
+**  Privacy flags
+**	These are bit values for the PrivacyFlags word.
+*/
+
+#define PRIV_PUBLIC		0	/* what have I got to hide? */
+#define PRIV_NEEDMAILHELO	0x0001	/* insist on HELO for MAIL, at least */
+#define PRIV_NEEDEXPNHELO	0x0002	/* insist on HELO for EXPN */
+#define PRIV_NEEDVRFYHELO	0x0004	/* insist on HELO for VRFY */
+#define PRIV_NOEXPN		0x0008	/* disallow EXPN command entirely */
+#define PRIV_NOVRFY		0x0010	/* disallow VRFY command entirely */
+#define PRIV_AUTHWARNINGS	0x0020	/* flag possible authorization probs */
+#define PRIV_NORECEIPTS		0x0040	/* disallow return receipts */
+#define PRIV_NOETRN		0x0080	/* disallow ETRN command entirely */
+#define PRIV_RESTRICTMAILQ	0x1000	/* restrict mailq command */
+#define PRIV_RESTRICTQRUN	0x2000	/* restrict queue run */
+#define PRIV_GOAWAY		0x0fff	/* don't give no info, anyway, anyhow */
+
+/* struct defining such things */
+struct prival
+{
+	char	*pv_name;	/* name of privacy flag */
+	int	pv_flag;	/* numeric level */
+};
+
+
+/*
+**  Flags passed to remotename, parseaddr, allocaddr, and buildaddr.
+*/
+
+#define RF_SENDERADDR		0x001	/* this is a sender address */
+#define RF_HEADERADDR		0x002	/* this is a header address */
+#define RF_CANONICAL		0x004	/* strip comment information */
+#define RF_ADDDOMAIN		0x008	/* OK to do domain extension */
+#define RF_COPYPARSE		0x010	/* copy parsed user & host */
+#define RF_COPYPADDR		0x020	/* copy print address */
+#define RF_COPYALL		(RF_COPYPARSE|RF_COPYPADDR)
+#define RF_COPYNONE		0
+
+
+/*
+**  Flags passed to safefile/safedirpath.
+*/
+
+#define SFF_ANYFILE		0	/* no special restrictions */
+#define SFF_MUSTOWN		0x0001	/* user must own this file */
+#define SFF_NOSLINK		0x0002	/* file cannot be a symbolic link */
+#define SFF_ROOTOK		0x0004	/* ok for root to own this file */
+#define SFF_RUNASREALUID	0x0008	/* if no ctladdr, run as real uid */
+#define SFF_NOPATHCHECK		0x0010	/* don't bother checking dir path */
+#define SFF_SETUIDOK		0x0020	/* setuid files are ok */
+#define SFF_CREAT		0x0040	/* ok to create file if necessary */
+#define SFF_REGONLY		0x0080	/* regular files only */
+#define SFF_SAFEDIRPATH		0x0100	/* no writable directories allowed */
+#define SFF_NOHLINK		0x0200	/* file cannot have hard links */
+#define SFF_NOWLINK		0x0400	/* links only in non-writable dirs */
+#define SFF_NOWFILES		0x0800	/* disallow world writable files */
+
+/* flags that are actually specific to safeopen/safefopen/dfopen */
+#define SFF_OPENASROOT		0x1000	/* open as root instead of real user */
+#define SFF_NOLOCK		0x2000	/* don't lock the file */
+
+/* pseudo-flags */
+#define SFF_NOLINK		(SFF_NOHLINK|SFF_NOSLINK)
+
+/* functions */
+extern int	safefile __P((char *, UID_T, GID_T, char *, int, int, struct stat *));
+extern int	safedirpath __P((char *, UID_T, GID_T, char *, int));
+extern int	safeopen __P((char *, int, int, int));
+extern FILE	*safefopen __P((char *, int, int, int));
+extern int	dfopen __P((char *, int, int, int));
+extern bool	filechanged __P((char *, int, struct stat *, int));
+
+
+/*
+**  Flags passed to mime8to7.
+*/
+
+#define M87F_OUTER		0	/* outer context */
+#define M87F_NO8BIT		0x0001	/* can't have 8-bit in this section */
+#define M87F_DIGEST		0x0002	/* processing multipart/digest */
+
+
+/*
+**  Flags passed to returntosender.
+*/
+
+#define RTSF_NO_BODY		0	/* send headers only */
+#define RTSF_SEND_BODY		0x0001	/* include body of message in return */
+#define RTSF_PM_BOUNCE		0x0002	/* this is a postmaster bounce */
+
+
+/*
+**  Regular UNIX sockaddrs are too small to handle ISO addresses, so
+**  we are forced to declare a supertype here.
+*/
+
+# if NETINET || NETUNIX || NETISO || NETNS || NETX25
+union bigsockaddr
+{
+	struct sockaddr		sa;	/* general version */
+#if NETUNIX
+	struct sockaddr_un	sunix;	/* UNIX family */
+#endif
+#if NETINET
+	struct sockaddr_in	sin;	/* INET family */
+#endif
+#if NETISO
+	struct sockaddr_iso	siso;	/* ISO family */
+#endif
+#if NETNS
+	struct sockaddr_ns	sns;	/* XNS family */
+#endif
+#if NETX25
+	struct sockaddr_x25	sx25;	/* X.25 family */
+#endif
+};
+
+#define SOCKADDR	union bigsockaddr
+
+EXTERN SOCKADDR RealHostAddr;	/* address of host we are talking to */
+
+extern char	*hostnamebyanyaddr __P((SOCKADDR *));
+extern char	*anynet_ntoa __P((SOCKADDR *));
+# if DAEMON
+extern bool	validate_connection __P((SOCKADDR *, char *, ENVELOPE *));
+# endif
+
+#endif
+
+
+/*
+**  Vendor codes
+**
+**	Vendors can customize sendmail to add special behaviour,
+**	generally for back compatibility.  Ideally, this should
+**	be set up in the .cf file using the "V" command.  However,
+**	it's quite reasonable for some vendors to want the default
+**	be their old version; this can be set using
+**		-DVENDOR_DEFAULT=VENDOR_xxx
+**	in the Makefile.
+**
+**	Vendors should apply to sendmail@CS.Berkeley.EDU for
+**	unique vendor codes.
+*/
+
+#define VENDOR_BERKELEY	1	/* Berkeley-native configuration file */
+#define VENDOR_SUN	2	/* Sun-native configuration file */
+#define VENDOR_HP	3	/* Hewlett-Packard specific config syntax */
+#define VENDOR_IBM	4	/* IBM specific config syntax */
+
+EXTERN int	VendorCode;	/* vendor-specific operation enhancements */
+
+/* prototypes for vendor-specific hook routines */
+extern void	vendor_set_uid __P((UID_T));
+extern void	vendor_daemon_setup __P((ENVELOPE *));
+
+
+/*
+**  Terminal escape codes.
+**
+**	To make debugging output clearer.
+*/
+
+struct termescape
+{
+	char	*te_rv_on;	/* turn reverse-video on */
+	char	*te_rv_off;	/* turn reverse-video off */
+};
+
+EXTERN struct termescape	TermEscape;
+
+
+/*
+**  Error return from inet_addr(3), in case not defined in /usr/include.
+*/
+
+#ifndef INADDR_NONE
+# define INADDR_NONE	0xffffffff
+#endif
+/*
+**  Global variables.
+*/
+
+EXTERN bool	FromFlag;	/* if set, "From" person is explicit */
+EXTERN bool	MeToo;		/* send to the sender also */
+EXTERN bool	IgnrDot;	/* don't let dot end messages */
+EXTERN bool	SaveFrom;	/* save leading "From" lines */
+EXTERN bool	GrabTo;		/* if set, get recipients from msg */
+EXTERN bool	SuprErrs;	/* set if we are suppressing errors */
+EXTERN bool	HoldErrs;	/* only output errors to transcript */
+EXTERN bool	NoConnect;	/* don't connect to non-local mailers */
+EXTERN bool	SuperSafe;	/* be extra careful, even if expensive */
+EXTERN bool	ForkQueueRuns;	/* fork for each job when running the queue */
+EXTERN bool	AutoRebuild;	/* auto-rebuild the alias database as needed */
+EXTERN bool	CheckAliases;	/* parse addresses during newaliases */
+EXTERN bool	NoAlias;	/* suppress aliasing */
+EXTERN bool	UseNameServer;	/* using DNS -- interpret h_errno & MX RRs */
+EXTERN bool	UseHesiod;	/* using Hesiod -- interpret Hesiod errors */
+EXTERN bool	SevenBitInput;	/* force 7-bit data on input */
+EXTERN bool	HasEightBits;	/* has at least one eight bit input byte */
+EXTERN bool	ConfigFileRead;	/* configuration file has been read */
+EXTERN time_t	SafeAlias;	/* interval to wait until @:@ in alias file */
+EXTERN FILE	*InChannel;	/* input connection */
+EXTERN FILE	*OutChannel;	/* output connection */
+EXTERN char	*RealUserName;	/* real user name of caller */
+EXTERN uid_t	RealUid;	/* real uid of caller */
+EXTERN gid_t	RealGid;	/* real gid of caller */
+EXTERN uid_t	DefUid;		/* default uid to run as */
+EXTERN gid_t	DefGid;		/* default gid to run as */
+EXTERN char	*DefUser;	/* default user to run as (from DefUid) */
+EXTERN MODE_T	OldUmask;	/* umask when sendmail starts up */
+EXTERN int	Verbose;	/* set if blow-by-blow desired */
+EXTERN int	Errors;		/* set if errors (local to single pass) */
+EXTERN int	ExitStat;	/* exit status code */
+EXTERN int	LineNumber;	/* line number in current input */
+EXTERN int	LogLevel;	/* level of logging to perform */
+EXTERN int	FileMode;	/* mode on files */
+EXTERN int	QueueLA;	/* load average starting forced queueing */
+EXTERN int	RefuseLA;	/* load average refusing connections are */
+EXTERN int	CurrentLA;	/* current load average */
+EXTERN long	QueueFactor;	/* slope of queue function */
+EXTERN time_t	QueueIntvl;	/* intervals between running the queue */
+EXTERN char	*HelpFile;	/* location of SMTP help file */
+EXTERN char	*ErrMsgFile;	/* file to prepend to all error messages */
+EXTERN char	*StatFile;	/* location of statistics summary */
+EXTERN char	*QueueDir;	/* location of queue directory */
+EXTERN char	*FileName;	/* name to print on error messages */
+EXTERN char	*SmtpPhase;	/* current phase in SMTP processing */
+EXTERN char	*MyHostName;	/* name of this host for SMTP messages */
+EXTERN char	*RealHostName;	/* name of host we are talking to */
+EXTERN char	*CurHostName;	/* current host we are dealing with */
+EXTERN jmp_buf	TopFrame;	/* branch-to-top-of-loop-on-error frame */
+EXTERN bool	QuickAbort;	/*  .... but only if we want a quick abort */
+EXTERN bool	OnlyOneError;	/*  .... or only want to give one SMTP reply */
+EXTERN bool	LogUsrErrs;	/* syslog user errors (e.g., SMTP RCPT cmd) */
+EXTERN bool	SendMIMEErrors;	/* send error messages in MIME format */
+EXTERN bool	MatchGecos;	/* look for user names in gecos field */
+EXTERN bool	UseErrorsTo;	/* use Errors-To: header (back compat) */
+EXTERN bool	TryNullMXList;	/* if we are the best MX, try host directly */
+EXTERN bool	InChild;	/* true if running in an SMTP subprocess */
+EXTERN bool	DisConnected;	/* running with OutChannel redirected to xf */
+EXTERN bool	ColonOkInAddr;	/* single colon legal in address */
+EXTERN bool	HasWildcardMX;	/* don't use MX records when canonifying */
+EXTERN char	SpaceSub;	/* substitution for <lwsp> */
+EXTERN int	PrivacyFlags;	/* privacy flags */
+EXTERN char	*ConfFile;	/* location of configuration file [conf.c] */
+EXTERN char	*PidFile;	/* location of proc id file [conf.c] */
+extern ADDRESS	NullAddress;	/* a null (template) address [main.c] */
+EXTERN long	WkClassFact;	/* multiplier for message class -> priority */
+EXTERN long	WkRecipFact;	/* multiplier for # of recipients -> priority */
+EXTERN long	WkTimeFact;	/* priority offset each time this job is run */
+EXTERN char	*UdbSpec;	/* user database source spec */
+EXTERN int	MaxHopCount;	/* max # of hops until bounce */
+EXTERN int	ConfigLevel;	/* config file level */
+EXTERN char	*TimeZoneSpec;	/* override time zone specification */
+EXTERN char	*ForwardPath;	/* path to search for .forward files */
+EXTERN long	MinBlocksFree;	/* min # of blocks free on queue fs */
+EXTERN char	*FallBackMX;	/* fall back MX host */
+EXTERN long	MaxMessageSize;	/* advertised max size we will accept */
+EXTERN time_t	MinQueueAge;	/* min delivery interval */
+EXTERN time_t	DialDelay;	/* delay between dial-on-demand tries */
+EXTERN char	*SafeFileEnv;	/* chroot location for file delivery */
+EXTERN char	*HostsFile;	/* path to /etc/hosts file */
+EXTERN char	*HostStatDir;	/* location of host status information */
+EXTERN int	MaxQueueRun;	/* maximum number of jobs in one queue run */
+EXTERN int	MaxChildren;	/* maximum number of daemonic children */
+EXTERN int	CurChildren;	/* current number of daemonic children */
+EXTERN char	*SmtpGreeting;	/* SMTP greeting message (old $e macro) */
+EXTERN char	*UnixFromLine;	/* UNIX From_ line (old $l macro) */
+EXTERN char	*OperatorChars;	/* operators (old $o macro) */
+EXTERN bool	DontInitGroups;	/* avoid initgroups() because of NIS cost */
+EXTERN int	DefaultNotify;	/* default DSN notification flags */
+EXTERN bool	AllowBogusHELO;	/* allow syntax errors on HELO command */
+EXTERN bool	UserSubmission;	/* initial (user) mail submission */
+EXTERN char	*RunAsUserName;	/* user to become for bulk of run */
+EXTERN uid_t	RunAsUid;	/* UID to become for bulk of run */
+EXTERN gid_t	RunAsGid;	/* GID to become for bulk of run */
+EXTERN int	MaxRcptPerMsg;	/* max recipients per SMTP message */
+EXTERN bool	DoQueueRun;	/* non-interrupt time queue run needed */
+#if _FFR_DSN_RRT_OPTION
+EXTERN bool	RrtImpliesDsn;	/* turn Return-Receipt-To: into DSN */
+#endif
+EXTERN char	*DeadLetterDrop;	/* path to dead letter office */
+EXTERN bool	DontProbeInterfaces;	/* don't probe interfaces for names */
+EXTERN bool	ChownAlwaysSafe;	/* treat chown(2) as safe */
+EXTERN bool	IgnoreHostStatus;	/* ignore long term host status files */
+EXTERN bool	SingleThreadDelivery;	/* single thread hosts on delivery */
+EXTERN bool	UnsafeGroupWrites;	/* group-writable files are unsafe */
+EXTERN bool	SingleLineFromHeader;	/* force From: header to be one line */
+EXTERN bool	DontLockReadFiles;	/* don't read lock support files */
+EXTERN int	ConnRateThrottle;	/* throttle for SMTP connection rate */
+EXTERN int	MaxAliasRecursion;	/* maximum depth of alias recursion */
+EXTERN int	MaxMacroRecursion;	/* maximum depth of macro recursion */
+EXTERN int	MaxRuleRecursion;	/* maximum depth of ruleset recursion */
+EXTERN char	*MustQuoteChars;	/* quote these characters in phrases */
+EXTERN char	*ServiceSwitchFile;	/* backup service switch */
+EXTERN char	*DefaultCharSet;	/* default character set for MIME */
+EXTERN char	*PostMasterCopy;	/* address to get errs cc's */
+EXTERN int	CheckpointInterval;	/* queue file checkpoint interval */
+EXTERN bool	DontPruneRoutes;	/* don't prune source routes */
+EXTERN bool	DontExpandCnames;	/* do not $[...$] expand CNAMEs */
+EXTERN int	MaxMciCache;		/* maximum entries in MCI cache */
+EXTERN time_t	ServiceCacheTime;	/* time service switch was cached */
+EXTERN time_t	ServiceCacheMaxAge;	/* refresh interval for cache */
+EXTERN time_t	MciCacheTimeout;	/* maximum idle time on connections */
+EXTERN time_t	MciInfoTimeout;		/* how long 'til we retry down hosts */
+EXTERN char	*QueueLimitRecipient;	/* limit queue runs to this recipient */
+EXTERN char	*QueueLimitSender;	/* limit queue runs to this sender */
+EXTERN char	*QueueLimitId;		/* limit queue runs to this id */
+EXTERN FILE	*TrafficLogFile;	/* file in which to log all traffic */
+EXTERN char	*DoubleBounceAddr;	/* where to send double bounces */
+EXTERN bool	FatalWritableDirs;	/* no writable dirs in map paths */
+EXTERN char	**ExternalEnviron;	/* input environment */
+EXTERN char	*UserEnviron[MAXUSERENVIRON + 1];
+					/* saved user environment */
+extern int	errno;
+
+
+/*
+**  Timeouts
+**
+**	Indicated values are the MINIMUM per RFC 1123 section 5.3.2.
+*/
+
+EXTERN struct
+{
+			/* RFC 1123-specified timeouts [minimum value] */
+	time_t	to_initial;	/* initial greeting timeout [5m] */
+	time_t	to_mail;	/* MAIL command [5m] */
+	time_t	to_rcpt;	/* RCPT command [5m] */
+	time_t	to_datainit;	/* DATA initiation [2m] */
+	time_t	to_datablock;	/* DATA block [3m] */
+	time_t	to_datafinal;	/* DATA completion [10m] */
+	time_t	to_nextcommand;	/* next command [5m] */
+			/* following timeouts are not mentioned in RFC 1123 */
+	time_t	to_iconnect;	/* initial connection timeout (first try) */
+	time_t	to_connect;	/* initial connection timeout (later tries) */
+	time_t	to_rset;	/* RSET command */
+	time_t	to_helo;	/* HELO command */
+	time_t	to_quit;	/* QUIT command */
+	time_t	to_miscshort;	/* misc short commands (NOOP, VERB, etc) */
+	time_t	to_ident;	/* IDENT protocol requests */
+	time_t	to_fileopen;	/* opening :include: and .forward files */
+			/* following are per message */
+	time_t	to_q_return[MAXTOCLASS];	/* queue return timeouts */
+	time_t	to_q_warning[MAXTOCLASS];	/* queue warning timeouts */
+} TimeOuts;
+
+/* timeout classes for return and warning timeouts */
+# define TOC_NORMAL	0	/* normal delivery */
+# define TOC_URGENT	1	/* urgent delivery */
+# define TOC_NONURGENT	2	/* non-urgent delivery */
+
+
+/*
+**  Trace information
+*/
+
+/* trace vector and macros for debugging flags */
+EXTERN u_char	tTdvect[100];
+# define tTd(flag, level)	(tTdvect[flag] >= level)
+# define tTdlevel(flag)		(tTdvect[flag])
+/*
+**  Miscellaneous information.
+*/
+
+
+/*
+**  The "no queue id" queue id for sm_syslog
+*/
+
+#define NOQID		"*~*"
+
+
+/*
+**  Some in-line functions
+*/
+
+/* set exit status */
+#define setstat(s)	{ \
+				if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \
+					ExitStat = s; \
+			}
+
+/* make a copy of a string */
+#define newstr(s)	strcpy(xalloc(strlen(s) + 1), s)
+
+#define STRUCTCOPY(s, d)	d = s
+
+
+
+/*
+**  Declarations of useful functions
+*/
+
+extern char	*xalloc __P((int));
+extern char	*sfgets __P((char *, int, FILE *, time_t, char *));
+extern char	*queuename __P((ENVELOPE *, int));
+extern time_t	curtime __P(());
+extern bool	transienterror __P((int));
+extern char	*fgetfolded __P((char *, int, FILE *));
+extern char	*username __P(());
+extern char	*pintvl __P((time_t, bool));
+extern bool	shouldqueue __P((long, time_t));
+extern bool	lockfile __P((int, char *, char *, int));
+extern char	*hostsignature __P((MAILER *, char *, ENVELOPE *));
+extern void	openxscript __P((ENVELOPE *));
+extern void	closexscript __P((ENVELOPE *));
+extern char	*shortenstring __P((const char *, int));
+extern bool	usershellok __P((char *, char *));
+extern char	*defcharset __P((ENVELOPE *));
+extern bool	wordinclass __P((char *, int));
+extern char	*denlstring __P((char *, bool, bool));
+extern void	makelower __P((char *));
+extern void	rebuildaliases __P((MAP *, bool));
+extern void	readaliases __P((MAP *, FILE *, bool, bool));
+extern void	finis __P(());
+extern void	setsender __P((char *, ENVELOPE *, char **, int, bool));
+extern void	xputs __P((const char *));
+extern void	logsender __P((ENVELOPE *, char *));
+extern void	smtprset __P((MAILER *, MCI *, ENVELOPE *));
+extern void	smtpquit __P((MAILER *, MCI *, ENVELOPE *));
+extern void	setuserenv __P((const char *, const char *));
+extern char	*getextenv __P((const char *));
+extern void	disconnect __P((int, ENVELOPE *));
+extern void	putxline __P((char *, size_t, MCI *, int));
+extern void	dumpfd __P((int, bool, bool));
+extern void	makemailer __P((char *));
+extern void	putfromline __P((MCI *, ENVELOPE *));
+extern void	setoption __P((int, char *, bool, bool, ENVELOPE *));
+extern void	setclass __P((int, char *));
+extern void	inittimeouts __P((char *));
+extern void	logdelivery __P((MAILER *, MCI *, const char *, ADDRESS *, time_t, ENVELOPE *));
+extern void	giveresponse __P((int, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *));
+extern void	buildfname __P((char *, char *, char *, int));
+extern void	mci_setstat __P((MCI *, int, char *, char *));
+extern char	*smtptodsn __P((int));
+extern int	rscheck __P((char *, char *, char *, ENVELOPE *e));
+extern void	mime7to8 __P((MCI *, HDR *, ENVELOPE *));
+extern int	mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int));
+extern void	xfclose __P((FILE *, char *, char *));
+extern int	switch_map_find __P((char *, char *[], short []));
+extern void	shorten_hostname __P((char []));
+extern int	waitfor __P((pid_t));
+extern void	proc_list_add __P((pid_t));
+extern void	proc_list_drop __P((pid_t));
+extern void	proc_list_clear __P((void));
+extern void	buffer_errors __P((void));
+extern void	flush_errors __P((bool));
+extern void	putline __P((char *, MCI *));
+extern bool	xtextok __P((char *));
+extern char	*xtextify __P((char *, char *));
+extern char	*xuntextify __P((char *));
+extern void	cleanstrcpy __P((char *, char *, int));
+extern int	getmxrr __P((char *, char **, bool, int *));
+extern int	strtorwset __P((char *, char **, int));
+extern void	printav __P((char **));
+extern void	printopenfds __P((bool));
+extern int	endmailer __P((MCI *, ENVELOPE *, char **));
+extern void	fixcrlf __P((char *, bool));
+extern int	dofork __P((void));
+extern void	initsys __P((ENVELOPE *));
+extern void	collect __P((FILE *, bool, HDR **, ENVELOPE *));
+extern void	stripquotes __P((char *));
+extern int	include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE  *));
+extern void	unlockqueue __P((ENVELOPE *));
+extern void	xunlink __P((char *));
+extern bool	runqueue __P((bool, bool));
+extern int	getla __P((void));
+extern void	sendall __P((ENVELOPE *, int));
+extern void	queueup __P((ENVELOPE *, bool));
+extern void	checkfds __P((char *));
+extern int	returntosender __P((char *, ADDRESS *, int, ENVELOPE *));
+extern void	markstats __P((ENVELOPE *, ADDRESS *));
+extern void	poststats __P((char *));
+extern char	*arpadate __P((char *));
+extern int	mailfile __P((char *, ADDRESS *, int, ENVELOPE *));
+extern void	loseqfile __P((ENVELOPE *, char *));
+extern int	prog_open __P((char **, int *, ENVELOPE *));
+extern bool	getcanonname __P((char *, int, bool));
+extern bool	path_is_dir __P((char *, bool));
+extern pid_t	dowork __P((char *, bool, bool, ENVELOPE *));
+extern int	drop_privileges __P((bool));
+extern void	fill_fd __P((int, char *));
+
+extern const char	*errstring __P((int));
+extern sigfunc_t	setsignal __P((int, sigfunc_t));
+extern int		blocksignal __P((int));
+extern int		releasesignal __P((int));
+extern struct hostent	*sm_gethostbyname __P((char *));
+extern struct hostent	*sm_gethostbyaddr __P((char *, int, int));
+extern struct passwd	*sm_getpwnam __P((char *));
+extern struct passwd	*sm_getpwuid __P((UID_T));
+extern struct passwd	*finduser __P((char *, bool *));
+
+#ifdef XDEBUG
+extern void		checkfdopen __P((int, char *));
+extern void		checkfd012 __P((char *));
+#endif
+
+/* ellipsis is a different case though */
+#ifdef __STDC__
+extern void		auth_warning(ENVELOPE *, const char *, ...);
+extern void		syserr(const char *, ...);
+extern void		usrerr(const char *, ...);
+extern void		message(const char *, ...);
+extern void		nmessage(const char *, ...);
+extern void		setproctitle(const char *, ...);
+extern void		sm_syslog(int, const char *, const char *, ...);
+#else
+extern void		auth_warning();
+extern void		syserr();
+extern void		usrerr();
+extern void		message();
+extern void		nmessage();
+extern void		setproctitle();
+extern void		sm_syslog();
+#endif
+
+#if !HASSNPRINTF
+# ifdef __STDC__
+extern int		snprintf(char *, size_t, const char *, ...);
+extern int		vsnprintf(char *, size_t, const char *, va_list);
+# else
+extern int		snprintf();
+extern int		vsnprintf();
+# endif
+#endif
diff --git a/src/sendmail.hf b/src/sendmail.hf
new file mode 100644
index 0000000..7ab6d61
--- /dev/null
+++ b/src/sendmail.hf
@@ -0,0 +1,113 @@
+cpyr
+cpyr	Copyright (c) 1983, 1995-1997 Eric P. Allman
+cpyr	Copyright (c) 1988, 1993
+cpyr	    The Regents of the University of California.  All rights reserved.
+cpyr	
+cpyr	@(#)sendmail.hf	8.12 (Berkeley) 2/1/97
+cpyr
+smtp	Topics:
+smtp		HELO	EHLO	MAIL	RCPT	DATA
+smtp		RSET	NOOP	QUIT	HELP	VRFY
+smtp		EXPN	VERB	ETRN	DSN
+smtp	For more info use "HELP <topic>".
+smtp	To report bugs in the implementation send email to
+smtp		sendmail-bugs@sendmail.org.
+smtp	For local information send email to Postmaster at your site.
+help	HELP [ <topic> ]
+help		The HELP command gives help info.
+helo	HELO <hostname>
+helo		Introduce yourself.
+ehlo	EHLO <hostname>
+ehlo		Introduce yourself, and request extended SMTP mode.
+ehlo	Possible replies include:
+ehlo		SEND		Send as mail			[RFC821]
+ehlo		SOML		Send as mail or terminal	[RFC821]
+ehlo		SAML		Send as mail and terminal	[RFC821]
+ehlo		EXPN		Expand the mailing list		[RFC821]
+ehlo		HELP		Supply helpful information	[RFC821]
+ehlo		TURN		Turn the operation around	[RFC821]
+ehlo		8BITMIME	Use 8-bit data			[RFC1652]
+ehlo		SIZE		Message size declaration	[RFC1870]
+ehlo		VERB		Verbose				[Allman]
+ehlo		ONEX		One message transaction only	[Allman]
+ehlo		CHUNKING	Chunking			[RFC1830]
+ehlo		BINARYMIME	Binary MIME			[RFC1830]
+ehlo		PIPELINING	Command Pipelining		[RFC1854]
+ehlo		DSN		Delivery Status Notification	[RFC1891]
+ehlo		ETRN		Remote Message Queue Starting	[RFC1985]
+ehlo		XUSR		Initial (user) submission	[Allman]
+mail	MAIL FROM: <sender> [ <parameters> ]
+mail		Specifies the sender.  Parameters are ESMTP extensions.
+mail		See "HELP DSN" for details.
+rcpt	RCPT TO: <recipient> [ <parameters> ]
+rcpt		Specifies the recipient.  Can be used any number of times.
+rcpt		Parameters are ESMTP extensions.  See "HELP DSN" for details.
+data	DATA
+data		Following text is collected as the message.
+data		End with a single dot.
+rset	RSET
+rset		Resets the system.
+quit	QUIT
+quit		Exit sendmail (SMTP).
+verb	VERB
+verb		Go into verbose mode.  This sends 0xy responses that are
+verb		not RFC821 standard (but should be)  They are recognized
+verb		by humans and other sendmail implementations.
+vrfy	VRFY <recipient>
+vrfy		Verify an address.  If you want to see what it aliases
+vrfy		to, use EXPN instead.
+expn	EXPN <recipient>
+expn		Expand an address.  If the address indicates a mailing
+expn		list, return the contents of that list.
+noop	NOOP
+noop		Do nothing.
+send	SEND FROM: <sender>
+send		replaces the MAIL command, and can be used to send
+send		directly to a users terminal.  Not supported in this
+send		implementation.
+soml	SOML FROM: <sender>
+soml		Send or mail.  If the user is logged in, send directly,
+soml		otherwise mail.  Not supported in this implementation.
+saml	SAML FROM: <sender>
+saml		Send and mail.  Send directly to the user's terminal,
+saml		and also mail a letter.  Not supported in this
+saml		implementation.
+turn	TURN
+turn		Reverses the direction of the connection.  Not currently
+turn		implemented.
+etrn	ETRN [ <hostname> | @<domain> | #<queuename> ]
+etrn		Run the queue for the specified <hostname>, or
+etrn		all hosts within a given <domain>, or a specially-named
+etrn		<queuename> (implementation-specific).
+dsn	MAIL FROM: <sender> [ RET={ FULL | HDRS} ] [ ENVID=<envid> ]
+dsn	RCPT TO: <recipient> [ NOTIFY={NEVER,SUCCESS,FAILURE,DELAY} ]
+dsn	                     [ ORCPT=<recipient> ]
+dsn		SMTP Delivery Status Notifications.
+dsn	Descriptions:
+dsn		RET	Return either the full message or only headers.
+dsn		ENVID	Sender's "envelope identifier" for tracking.
+dsn		NOTIFY	When to send a DSN. Multiple options are OK, comma-
+dsn		        delimited. NEVER must appear by itself.
+dsn		ORCPT	Original recipient.
+-bt	Help for test mode:
+-bt	?                :this help message.
+-bt	.Dmvalue         :define macro `m' to `value'.
+-bt	.Ccvalue         :add `value' to class `c'.
+-bt	=Sruleset        :dump the contents of the indicated ruleset.
+-bt	=M               :display the known mailers.
+-bt	-ddebug-spec     :equivalent to the command-line -d debug flag.
+-bt	$m               :print the value of macro $m.
+-bt	$=c              :print the contents of class $=c.
+-bt	/mx host         :returns the MX records for `host'.
+-bt	/parse address   :parse address, returning the value of crackaddr, and
+-bt	                  the parsed address (same as -bv).
+-bt	/try mailer addr :rewrite address into the form it will have when
+-bt	                  presented to the indicated mailer.
+-bt	/tryflags flags  :set flags used by parsing.  The flags can be `H' for
+-bt	                  Header or `E' for Envelope, and `S' for Sender or `R'
+-bt	                  for Recipient.  These can be combined, `HR' sets
+-bt			  flags for header recipients.
+-bt	/canon hostname  :try to canonify hostname.
+-bt	/map mapname key :look up `key' in the indicated `mapname'.
+-bt	rules addr	 :run the indicated address through the named rules.
+-bt			  Rules can be a comma separated list of rules.
diff --git a/src/srvrsmtp.c b/src/srvrsmtp.c
new file mode 100644
index 0000000..cd47d5d
--- /dev/null
+++ b/src/srvrsmtp.c
@@ -0,0 +1,1510 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+# include "sendmail.h"
+
+#ifndef lint
+#if SMTP
+static char sccsid[] = "@(#)srvrsmtp.c	8.159 (Berkeley) 10/19/97 (with SMTP)";
+#else
+static char sccsid[] = "@(#)srvrsmtp.c	8.159 (Berkeley) 10/19/97 (without SMTP)";
+#endif
+#endif /* not lint */
+
+# include <errno.h>
+
+# if SMTP
+
+/*
+**  SMTP -- run the SMTP protocol.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		never.
+**
+**	Side Effects:
+**		Reads commands from the input channel and processes
+**			them.
+*/
+
+struct cmd
+{
+	char	*cmdname;	/* command name */
+	int	cmdcode;	/* internal code, see below */
+};
+
+/* values for cmdcode */
+# define CMDERROR	0	/* bad command */
+# define CMDMAIL	1	/* mail -- designate sender */
+# define CMDRCPT	2	/* rcpt -- designate recipient */
+# define CMDDATA	3	/* data -- send message text */
+# define CMDRSET	4	/* rset -- reset state */
+# define CMDVRFY	5	/* vrfy -- verify address */
+# define CMDEXPN	6	/* expn -- expand address */
+# define CMDNOOP	7	/* noop -- do nothing */
+# define CMDQUIT	8	/* quit -- close connection and die */
+# define CMDHELO	9	/* helo -- be polite */
+# define CMDHELP	10	/* help -- give usage info */
+# define CMDEHLO	11	/* ehlo -- extended helo (RFC 1425) */
+# define CMDETRN	12	/* etrn -- flush queue */
+/* non-standard commands */
+# define CMDONEX	16	/* onex -- sending one transaction only */
+# define CMDVERB	17	/* verb -- go into verbose mode */
+# define CMDXUSR	18	/* xusr -- initial (user) submission */
+/* use this to catch and log "door handle" attempts on your system */
+# define CMDLOGBOGUS	23	/* bogus command that should be logged */
+/* debugging-only commands, only enabled if SMTPDEBUG is defined */
+# define CMDDBGQSHOW	24	/* showq -- show send queue */
+# define CMDDBGDEBUG	25	/* debug -- set debug mode */
+
+static struct cmd	CmdTab[] =
+{
+	{ "mail",	CMDMAIL		},
+	{ "rcpt",	CMDRCPT		},
+	{ "data",	CMDDATA		},
+	{ "rset",	CMDRSET		},
+	{ "vrfy",	CMDVRFY		},
+	{ "expn",	CMDEXPN		},
+	{ "help",	CMDHELP		},
+	{ "noop",	CMDNOOP		},
+	{ "quit",	CMDQUIT		},
+	{ "helo",	CMDHELO		},
+	{ "ehlo",	CMDEHLO		},
+	{ "etrn",	CMDETRN		},
+	{ "verb",	CMDVERB		},
+	{ "onex",	CMDONEX		},
+	{ "xusr",	CMDXUSR		},
+    /* remaining commands are here only to trap and log attempts to use them */
+	{ "showq",	CMDDBGQSHOW	},
+	{ "debug",	CMDDBGDEBUG	},
+	{ "wiz",	CMDLOGBOGUS	},
+
+	{ NULL,		CMDERROR	}
+};
+
+bool	OneXact = FALSE;		/* one xaction only this run */
+char	*CurSmtpClient;			/* who's at the other end of channel */
+
+static char	*skipword();
+
+
+#define MAXBADCOMMANDS	25	/* maximum number of bad commands */
+#define MAXNOOPCOMMANDS	20	/* max "noise" commands before slowdown */
+#define MAXHELOCOMMANDS	3	/* max HELO/EHLO commands before slowdown */
+#define MAXVRFYCOMMANDS	6	/* max VRFY/EXPN commands before slowdown */
+#define MAXETRNCOMMANDS	8	/* max ETRN commands before slowdown */
+
+void
+smtp(nullserver, e)
+	bool nullserver;
+	register ENVELOPE *volatile e;
+{
+	register char *volatile p;
+	register struct cmd *c;
+	char *cmd;
+	auto ADDRESS *vrfyqueue;
+	ADDRESS *a;
+	volatile bool gotmail;		/* mail command received */
+	volatile bool gothello;		/* helo command received */
+	bool vrfy;			/* set if this is a vrfy command */
+	char *volatile protocol;	/* sending protocol */
+	char *volatile sendinghost;	/* sending hostname */
+	char *volatile peerhostname;	/* name of SMTP peer or "localhost" */
+	auto char *delimptr;
+	char *id;
+	volatile int nrcpts = 0;	/* number of RCPT commands */
+	bool doublequeue;
+	volatile int badcommands = 0;	/* count of bad commands */
+	volatile int nverifies = 0;	/* count of VRFY/EXPN commands */
+	volatile int n_etrn = 0;	/* count of ETRN commands */
+	volatile int n_noop = 0;	/* count of NOOP/VERB/ONEX etc cmds */
+	volatile int n_helo = 0;	/* count of HELO/EHLO commands */
+	bool ok;
+	volatile int lognullconnection = TRUE;
+	register char *q;
+	char inp[MAXLINE];
+	char cmdbuf[MAXLINE];
+	extern ENVELOPE BlankEnvelope;
+	extern void help __P((char *));
+	extern void settime __P((ENVELOPE *));
+	extern bool enoughdiskspace __P((long));
+	extern int runinchild __P((char *, ENVELOPE *));
+	extern void checksmtpattack __P((volatile int *, int, char *, ENVELOPE *));
+
+	if (fileno(OutChannel) != fileno(stdout))
+	{
+		/* arrange for debugging output to go to remote host */
+		(void) dup2(fileno(OutChannel), fileno(stdout));
+	}
+	settime(e);
+	peerhostname = RealHostName;
+	if (peerhostname == NULL)
+		peerhostname = "localhost";
+	CurHostName = peerhostname;
+	CurSmtpClient = macvalue('_', e);
+	if (CurSmtpClient == NULL)
+		CurSmtpClient = CurHostName;
+
+	setproctitle("server %s startup", CurSmtpClient);
+#if DAEMON
+	if (LogLevel > 11)
+	{
+		/* log connection information */
+		sm_syslog(LOG_INFO, NOQID,
+			"SMTP connect from %.100s (%.100s)",
+			CurSmtpClient, anynet_ntoa(&RealHostAddr));
+	}
+#endif
+
+	/* output the first line, inserting "ESMTP" as second word */
+	expand(SmtpGreeting, inp, sizeof inp, e);
+	p = strchr(inp, '\n');
+	if (p != NULL)
+		*p++ = '\0';
+	id = strchr(inp, ' ');
+	if (id == NULL)
+		id = &inp[strlen(inp)];
+	cmd = p == NULL ? "220 %.*s ESMTP%s" : "220-%.*s ESMTP%s";
+	message(cmd, id - inp, inp, id);
+
+	/* output remaining lines */
+	while ((id = p) != NULL && (p = strchr(id, '\n')) != NULL)
+	{
+		*p++ = '\0';
+		if (isascii(*id) && isspace(*id))
+			id++;
+		message("220-%s", id);
+	}
+	if (id != NULL)
+	{
+		if (isascii(*id) && isspace(*id))
+			id++;
+		message("220 %s", id);
+	}
+
+	protocol = NULL;
+	sendinghost = macvalue('s', e);
+	gothello = FALSE;
+	gotmail = FALSE;
+	for (;;)
+	{
+		/* arrange for backout */
+		(void) setjmp(TopFrame);
+		QuickAbort = FALSE;
+		HoldErrs = FALSE;
+		SuprErrs = FALSE;
+		LogUsrErrs = FALSE;
+		OnlyOneError = TRUE;
+		e->e_flags &= ~(EF_VRFYONLY|EF_GLOBALERRS);
+
+		/* setup for the read */
+		e->e_to = NULL;
+		Errors = 0;
+		(void) fflush(stdout);
+
+		/* read the input line */
+		SmtpPhase = "server cmd read";
+		setproctitle("server %s cmd read", CurSmtpClient);
+		p = sfgets(inp, sizeof inp, InChannel, TimeOuts.to_nextcommand,
+				SmtpPhase);
+
+		/* handle errors */
+		if (p == NULL)
+		{
+			/* end of file, just die */
+			disconnect(1, e);
+			message("421 %s Lost input channel from %s",
+				MyHostName, CurSmtpClient);
+			if (LogLevel > (gotmail ? 1 : 19))
+				sm_syslog(LOG_NOTICE, e->e_id,
+					"lost input channel from %.100s",
+					CurSmtpClient);
+			if (lognullconnection && LogLevel > 5)
+				sm_syslog(LOG_INFO, NULL,
+				"Null connection from %.100s",
+				CurSmtpClient);
+
+			/*
+			** If have not accepted mail (DATA), do not bounce
+			** bad addresses back to sender.
+			*/
+			if (bitset(EF_CLRQUEUE, e->e_flags))
+				e->e_sendqueue = NULL;
+
+			if (InChild)
+				ExitStat = EX_QUIT;
+			finis();
+		}
+
+		/* clean up end of line */
+		fixcrlf(inp, TRUE);
+
+		/* echo command to transcript */
+		if (e->e_xfp != NULL)
+			fprintf(e->e_xfp, "<<< %s\n", inp);
+
+		if (LogLevel >= 15)
+			sm_syslog(LOG_INFO, e->e_id,
+				"<-- %s",
+				inp);
+
+		if (e->e_id == NULL)
+			setproctitle("%s: %.80s", CurSmtpClient, inp);
+		else
+			setproctitle("%s %s: %.80s", e->e_id, CurSmtpClient, inp);
+
+		/* break off command */
+		for (p = inp; isascii(*p) && isspace(*p); p++)
+			continue;
+		cmd = cmdbuf;
+		while (*p != '\0' &&
+		       !(isascii(*p) && isspace(*p)) &&
+		       cmd < &cmdbuf[sizeof cmdbuf - 2])
+			*cmd++ = *p++;
+		*cmd = '\0';
+
+		/* throw away leading whitespace */
+		while (isascii(*p) && isspace(*p))
+			p++;
+
+		/* decode command */
+		for (c = CmdTab; c->cmdname != NULL; c++)
+		{
+			if (!strcasecmp(c->cmdname, cmdbuf))
+				break;
+		}
+
+		/* reset errors */
+		errno = 0;
+
+		/*
+		**  Process command.
+		**
+		**	If we are running as a null server, return 550
+		**	to everything.
+		*/
+
+		if (nullserver)
+		{
+			switch (c->cmdcode)
+			{
+			  case CMDQUIT:
+			  case CMDHELO:
+			  case CMDEHLO:
+			  case CMDNOOP:
+				/* process normally */
+				break;
+
+			  default:
+				if (++badcommands > MAXBADCOMMANDS)
+					sleep(1);
+				usrerr("550 Access denied");
+				continue;
+			}
+		}
+
+		/* non-null server */
+		switch (c->cmdcode)
+		{
+		  case CMDMAIL:
+		  case CMDEXPN:
+		  case CMDVRFY:
+		  case CMDETRN:
+			lognullconnection = FALSE;
+		}
+
+		switch (c->cmdcode)
+		{
+		  case CMDHELO:		/* hello -- introduce yourself */
+		  case CMDEHLO:		/* extended hello */
+			if (c->cmdcode == CMDEHLO)
+			{
+				protocol = "ESMTP";
+				SmtpPhase = "server EHLO";
+			}
+			else
+			{
+				protocol = "SMTP";
+				SmtpPhase = "server HELO";
+			}
+
+			/* avoid denial-of-service */
+			checksmtpattack(&n_helo, MAXHELOCOMMANDS, "HELO/EHLO", e);
+
+			/* check for duplicate HELO/EHLO per RFC 1651 4.2 */
+			if (gothello)
+			{
+				usrerr("503 %s Duplicate HELO/EHLO",
+					MyHostName);
+				break;
+			}
+
+			/* check for valid domain name (re 1123 5.2.5) */
+			if (*p == '\0' && !AllowBogusHELO)
+			{
+				usrerr("501 %s requires domain address",
+					cmdbuf);
+				break;
+			}
+
+			for (q = p; *q != '\0'; q++)
+			{
+				if (!isascii(*q))
+					break;
+				if (isalnum(*q))
+					continue;
+				if (isspace(*q))
+				{
+					*q = '\0';
+					break;
+				}
+				if (strchr("[].-_#", *q) == NULL)
+					break;
+			}
+			if (*q == '\0')
+			{
+				q = "pleased to meet you";
+				sendinghost = newstr(p);
+			}
+			else if (!AllowBogusHELO)
+			{
+				usrerr("501 Invalid domain name");
+				break;
+			}
+			else
+			{
+				q = "accepting invalid domain name";
+			}
+
+			gothello = TRUE;
+			
+			/* print HELO response message */
+			if (c->cmdcode != CMDEHLO)
+			{
+				message("250 %s Hello %s, %s",
+					MyHostName, CurSmtpClient, q);
+				break;
+			}
+
+			message("250-%s Hello %s, %s",
+				MyHostName, CurSmtpClient, q);
+
+			/* print EHLO features list */
+			if (!bitset(PRIV_NOEXPN, PrivacyFlags))
+			{
+				message("250-EXPN");
+				message("250-VERB");
+			}
+#if MIME8TO7
+			message("250-8BITMIME");
+#endif
+			if (MaxMessageSize > 0)
+				message("250-SIZE %ld", MaxMessageSize);
+			else
+				message("250-SIZE");
+#if DSN
+			if (SendMIMEErrors)
+				message("250-DSN");
+#endif
+			message("250-ONEX");
+			message("250-ETRN");
+			message("250-XUSR");
+			message("250 HELP");
+			break;
+
+		  case CMDMAIL:		/* mail -- designate sender */
+			SmtpPhase = "server MAIL";
+
+			/* check for validity of this command */
+			if (!gothello && bitset(PRIV_NEEDMAILHELO, PrivacyFlags))
+			{
+				usrerr("503 Polite people say HELO first");
+				break;
+			}
+			if (gotmail)
+			{
+				usrerr("503 Sender already specified");
+				break;
+			}
+			if (InChild)
+			{
+				errno = 0;
+				syserr("503 Nested MAIL command: MAIL %s", p);
+				finis();
+			}
+
+			/* make sure we know who the sending host is */
+			if (sendinghost == NULL)
+				sendinghost = peerhostname;
+
+			p = skipword(p, "from");
+			if (p == NULL)
+				break;
+
+			/* fork a subprocess to process this command */
+			if (runinchild("SMTP-MAIL", e) > 0)
+				break;
+			if (Errors > 0)
+				goto undo_subproc_no_pm;
+			if (!gothello)
+			{
+				auth_warning(e,
+					"%s didn't use HELO protocol",
+					CurSmtpClient);
+			}
+#ifdef PICKY_HELO_CHECK
+			if (strcasecmp(sendinghost, peerhostname) != 0 &&
+			    (strcasecmp(peerhostname, "localhost") != 0 ||
+			     strcasecmp(sendinghost, MyHostName) != 0))
+			{
+				auth_warning(e, "Host %s claimed to be %s",
+					CurSmtpClient, sendinghost);
+			}
+#endif
+
+			if (protocol == NULL)
+				protocol = "SMTP";
+			define('r', protocol, e);
+			define('s', sendinghost, e);
+			initsys(e);
+			if (Errors > 0)
+				goto undo_subproc_no_pm;
+			nrcpts = 0;
+			e->e_flags |= EF_LOGSENDER|EF_CLRQUEUE;
+			setproctitle("%s %s: %.80s", e->e_id, CurSmtpClient, inp);
+
+			/* child -- go do the processing */
+			if (setjmp(TopFrame) > 0)
+			{
+				/* this failed -- undo work */
+ undo_subproc_no_pm:
+				e->e_flags &= ~EF_PM_NOTIFY;
+ undo_subproc:
+				if (InChild)
+				{
+					QuickAbort = FALSE;
+					SuprErrs = TRUE;
+					e->e_flags &= ~EF_FATALERRS;
+					finis();
+				}
+				break;
+			}
+			QuickAbort = TRUE;
+
+			/* must parse sender first */
+			delimptr = NULL;
+			setsender(p, e, &delimptr, ' ', FALSE);
+			if (delimptr != NULL && *delimptr != '\0')
+				*delimptr++ = '\0';
+			if (Errors > 0)
+				goto undo_subproc_no_pm;
+
+			/* do config file checking of the sender */
+			if (rscheck("check_mail", p, NULL, e) != EX_OK ||
+			    Errors > 0)
+				goto undo_subproc_no_pm;
+
+			/* check for possible spoofing */
+			if (RealUid != 0 && OpMode == MD_SMTP &&
+			    !wordinclass(RealUserName, 't') &&
+			    !bitnset(M_LOCALMAILER, e->e_from.q_mailer->m_flags) &&
+			    strcmp(e->e_from.q_user, RealUserName) != 0)
+			{
+				auth_warning(e, "%s owned process doing -bs",
+					RealUserName);
+			}
+
+			/* now parse ESMTP arguments */
+			e->e_msgsize = 0;
+			p = delimptr;
+			while (p != NULL && *p != '\0')
+			{
+				char *kp;
+				char *vp = NULL;
+				extern void mail_esmtp_args __P((char *, char *, ENVELOPE *));
+
+				/* locate the beginning of the keyword */
+				while (isascii(*p) && isspace(*p))
+					p++;
+				if (*p == '\0')
+					break;
+				kp = p;
+
+				/* skip to the value portion */
+				while ((isascii(*p) && isalnum(*p)) || *p == '-')
+					p++;
+				if (*p == '=')
+				{
+					*p++ = '\0';
+					vp = p;
+
+					/* skip to the end of the value */
+					while (*p != '\0' && *p != ' ' &&
+					       !(isascii(*p) && iscntrl(*p)) &&
+					       *p != '=')
+						p++;
+				}
+
+				if (*p != '\0')
+					*p++ = '\0';
+
+				if (tTd(19, 1))
+					printf("MAIL: got arg %s=\"%s\"\n", kp,
+						vp == NULL ? "<null>" : vp);
+
+				mail_esmtp_args(kp, vp, e);
+				if (Errors > 0)
+					goto undo_subproc_no_pm;
+			}
+			if (Errors > 0)
+				goto undo_subproc_no_pm;
+
+			if (MaxMessageSize > 0 && e->e_msgsize > MaxMessageSize)
+			{
+				usrerr("552 Message size exceeds fixed maximum message size (%ld)",
+					MaxMessageSize);
+				goto undo_subproc_no_pm;
+			}
+				
+			if (!enoughdiskspace(e->e_msgsize))
+			{
+				usrerr("452 Insufficient disk space; try again later");
+				goto undo_subproc_no_pm;
+			}
+			if (Errors > 0)
+				goto undo_subproc_no_pm;
+			message("250 Sender ok");
+			gotmail = TRUE;
+			break;
+
+		  case CMDRCPT:		/* rcpt -- designate recipient */
+			if (!gotmail)
+			{
+				usrerr("503 Need MAIL before RCPT");
+				break;
+			}
+			SmtpPhase = "server RCPT";
+			if (setjmp(TopFrame) > 0)
+			{
+				e->e_flags &= ~EF_FATALERRS;
+				break;
+			}
+			QuickAbort = TRUE;
+			LogUsrErrs = TRUE;
+
+			/* limit flooding of our machine */
+			if (MaxRcptPerMsg > 0 && nrcpts >= MaxRcptPerMsg)
+			{
+				usrerr("452 Too many recipients");
+				break;
+			}
+
+			if (e->e_sendmode != SM_DELIVER)
+				e->e_flags |= EF_VRFYONLY;
+
+			p = skipword(p, "to");
+			if (p == NULL)
+				break;
+			a = parseaddr(p, NULLADDR, RF_COPYALL, ' ', &delimptr, e);
+			if (a == NULL || Errors > 0)
+				break;
+			if (delimptr != NULL && *delimptr != '\0')
+				*delimptr++ = '\0';
+
+			/* do config file checking of the recipient */
+			if (rscheck("check_rcpt", p, NULL, e) != EX_OK ||
+			    Errors > 0)
+				break;
+
+			/* now parse ESMTP arguments */
+			p = delimptr;
+			while (p != NULL && *p != '\0')
+			{
+				char *kp;
+				char *vp = NULL;
+				extern void rcpt_esmtp_args __P((ADDRESS *, char *, char *, ENVELOPE *));
+
+				/* locate the beginning of the keyword */
+				while (isascii(*p) && isspace(*p))
+					p++;
+				if (*p == '\0')
+					break;
+				kp = p;
+
+				/* skip to the value portion */
+				while ((isascii(*p) && isalnum(*p)) || *p == '-')
+					p++;
+				if (*p == '=')
+				{
+					*p++ = '\0';
+					vp = p;
+
+					/* skip to the end of the value */
+					while (*p != '\0' && *p != ' ' &&
+					       !(isascii(*p) && iscntrl(*p)) &&
+					       *p != '=')
+						p++;
+				}
+
+				if (*p != '\0')
+					*p++ = '\0';
+
+				if (tTd(19, 1))
+					printf("RCPT: got arg %s=\"%s\"\n", kp,
+						vp == NULL ? "<null>" : vp);
+
+				rcpt_esmtp_args(a, kp, vp, e);
+				if (Errors > 0)
+					break;
+			}
+			if (Errors > 0)
+				break;
+
+			/* save in recipient list after ESMTP mods */
+			a = recipient(a, &e->e_sendqueue, 0, e);
+			if (Errors > 0)
+				break;
+
+			/* no errors during parsing, but might be a duplicate */
+			e->e_to = a->q_paddr;
+			if (!bitset(QBADADDR, a->q_flags))
+			{
+				message("250 Recipient ok%s",
+					bitset(QQUEUEUP, a->q_flags) ?
+						" (will queue)" : "");
+				nrcpts++;
+			}
+			else
+			{
+				/* punt -- should keep message in ADDRESS.... */
+				usrerr("550 Addressee unknown");
+			}
+			break;
+
+		  case CMDDATA:		/* data -- text of mail */
+			SmtpPhase = "server DATA";
+			if (!gotmail)
+			{
+				usrerr("503 Need MAIL command");
+				break;
+			}
+			else if (nrcpts <= 0)
+			{
+				usrerr("503 Need RCPT (recipient)");
+				break;
+			}
+
+			/* check to see if we need to re-expand aliases */
+			/* also reset QBADADDR on already-diagnosted addrs */
+			doublequeue = FALSE;
+			for (a = e->e_sendqueue; a != NULL; a = a->q_next)
+			{
+				if (bitset(QVERIFIED, a->q_flags))
+				{
+					/* need to re-expand aliases */
+					doublequeue = TRUE;
+				}
+				if (bitset(QBADADDR, a->q_flags))
+				{
+					/* make this "go away" */
+					a->q_flags |= QDONTSEND;
+					a->q_flags &= ~QBADADDR;
+				}
+			}
+
+			/* collect the text of the message */
+			SmtpPhase = "collect";
+			buffer_errors();
+			collect(InChannel, TRUE, NULL, e);
+			if (Errors > 0)
+			{
+				flush_errors(TRUE);
+				buffer_errors();
+				goto abortmessage;
+			}
+
+			/* make sure we actually do delivery */
+			e->e_flags &= ~EF_CLRQUEUE;
+
+			/* from now on, we have to operate silently */
+			buffer_errors();
+			e->e_errormode = EM_MAIL;
+
+			/*
+			**  Arrange to send to everyone.
+			**	If sending to multiple people, mail back
+			**		errors rather than reporting directly.
+			**	In any case, don't mail back errors for
+			**		anything that has happened up to
+			**		now (the other end will do this).
+			**	Truncate our transcript -- the mail has gotten
+			**		to us successfully, and if we have
+			**		to mail this back, it will be easier
+			**		on the reader.
+			**	Then send to everyone.
+			**	Finally give a reply code.  If an error has
+			**		already been given, don't mail a
+			**		message back.
+			**	We goose error returns by clearing error bit.
+			*/
+
+			SmtpPhase = "delivery";
+			e->e_xfp = freopen(queuename(e, 'x'), "w", e->e_xfp);
+			id = e->e_id;
+
+			if (doublequeue)
+			{
+				/* make sure it is in the queue */
+				queueup(e, FALSE);
+			}
+			else
+			{
+				/* send to all recipients */
+				sendall(e, SM_DEFAULT);
+			}
+			e->e_to = NULL;
+
+			/* issue success message */
+			message("250 %s Message accepted for delivery", id);
+
+			/* if we just queued, poke it */
+			if (doublequeue &&
+			    e->e_sendmode != SM_QUEUE &&
+			    e->e_sendmode != SM_DEFER)
+			{
+				CurrentLA = getla();
+
+				if (!shouldqueue(e->e_msgpriority, e->e_ctime))
+				{
+					extern pid_t dowork();
+
+					unlockqueue(e);
+					(void) dowork(id, TRUE, TRUE, e);
+				}
+			}
+
+  abortmessage:
+			/* if in a child, pop back to our parent */
+			if (InChild)
+				finis();
+
+			/* clean up a bit */
+			gotmail = FALSE;
+			dropenvelope(e, TRUE);
+			CurEnv = e = newenvelope(e, CurEnv);
+			e->e_flags = BlankEnvelope.e_flags;
+			break;
+
+		  case CMDRSET:		/* rset -- reset state */
+			if (tTd(94, 100))
+				message("451 Test failure");
+			else
+				message("250 Reset state");
+
+			/* arrange to ignore any current send list */
+			e->e_sendqueue = NULL;
+			e->e_flags |= EF_CLRQUEUE;
+			if (InChild)
+				finis();
+
+			/* clean up a bit */
+			gotmail = FALSE;
+			SuprErrs = TRUE;
+			dropenvelope(e, TRUE);
+			CurEnv = e = newenvelope(e, CurEnv);
+			break;
+
+		  case CMDVRFY:		/* vrfy -- verify address */
+		  case CMDEXPN:		/* expn -- expand address */
+			checksmtpattack(&nverifies, MAXVRFYCOMMANDS,
+				c->cmdcode == CMDVRFY ? "VRFY" : "EXPN", e);
+			vrfy = c->cmdcode == CMDVRFY;
+			if (bitset(vrfy ? PRIV_NOVRFY : PRIV_NOEXPN,
+						PrivacyFlags))
+			{
+				if (vrfy)
+					message("252 Cannot VRFY user; try RCPT to attempt delivery (or try finger)");
+				else
+					message("502 Sorry, we do not allow this operation");
+				if (LogLevel > 5)
+					sm_syslog(LOG_INFO, e->e_id,
+						"%.100s: %s [rejected]",
+						CurSmtpClient,
+						shortenstring(inp, 203));
+				break;
+			}
+			else if (!gothello &&
+				 bitset(vrfy ? PRIV_NEEDVRFYHELO : PRIV_NEEDEXPNHELO,
+						PrivacyFlags))
+			{
+				usrerr("503 I demand that you introduce yourself first");
+				break;
+			}
+			if (runinchild(vrfy ? "SMTP-VRFY" : "SMTP-EXPN", e) > 0)
+				break;
+			if (Errors > 0)
+				goto undo_subproc;
+			if (LogLevel > 5)
+				sm_syslog(LOG_INFO, e->e_id,
+					"%.100s: %s",
+					CurSmtpClient,
+					shortenstring(inp, 203));
+			if (setjmp(TopFrame) > 0)
+				goto undo_subproc;
+			QuickAbort = TRUE;
+			vrfyqueue = NULL;
+			if (vrfy)
+				e->e_flags |= EF_VRFYONLY;
+			while (*p != '\0' && isascii(*p) && isspace(*p))
+				p++;
+			if (*p == '\0')
+			{
+				usrerr("501 Argument required");
+			}
+			else
+			{
+				(void) sendtolist(p, NULLADDR, &vrfyqueue, 0, e);
+			}
+			if (Errors > 0)
+				goto undo_subproc;
+			if (vrfyqueue == NULL)
+			{
+				usrerr("554 Nothing to %s", vrfy ? "VRFY" : "EXPN");
+			}
+			while (vrfyqueue != NULL)
+			{
+				extern void printvrfyaddr __P((ADDRESS *, bool, bool));
+
+				a = vrfyqueue;
+				while ((a = a->q_next) != NULL &&
+				       bitset(QDONTSEND|QBADADDR, a->q_flags))
+					continue;
+				if (!bitset(QDONTSEND|QBADADDR, vrfyqueue->q_flags))
+					printvrfyaddr(vrfyqueue, a == NULL, vrfy);
+				vrfyqueue = vrfyqueue->q_next;
+			}
+			if (InChild)
+				finis();
+			break;
+
+		  case CMDETRN:		/* etrn -- force queue flush */
+			if (strlen(p) <= 0)
+			{
+				usrerr("500 Parameter required");
+				break;
+			}
+
+			/* crude way to avoid denial-of-service attacks */
+			checksmtpattack(&n_etrn, MAXETRNCOMMANDS, "ETRN", e);
+
+			if (LogLevel > 5)
+				sm_syslog(LOG_INFO, e->e_id,
+					"%.100s: ETRN %s",
+					CurSmtpClient,
+					shortenstring(p, 203));
+
+			id = p;
+			if (*id == '@')
+				id++;
+			else
+				*--id = '@';
+			QueueLimitRecipient = id;
+			ok = runqueue(TRUE, TRUE);
+			QueueLimitRecipient = NULL;
+			if (ok && Errors == 0)
+				message("250 Queuing for node %s started", p);
+			break;
+
+		  case CMDHELP:		/* help -- give user info */
+			help(p);
+			break;
+
+		  case CMDNOOP:		/* noop -- do nothing */
+			checksmtpattack(&n_noop, MAXNOOPCOMMANDS, "NOOP", e);
+			message("250 OK");
+			break;
+
+		  case CMDQUIT:		/* quit -- leave mail */
+			message("221 %s closing connection", MyHostName);
+
+doquit:
+			/* arrange to ignore any current send list */
+			e->e_sendqueue = NULL;
+
+			/* avoid future 050 messages */
+			disconnect(1, e);
+
+			if (InChild)
+				ExitStat = EX_QUIT;
+			if (lognullconnection && LogLevel > 5)
+				sm_syslog(LOG_INFO, NULL,
+					"Null connection from %.100s",
+					CurSmtpClient);
+			finis();
+
+		  case CMDVERB:		/* set verbose mode */
+			if (bitset(PRIV_NOEXPN, PrivacyFlags))
+			{
+				/* this would give out the same info */
+				message("502 Verbose unavailable");
+				break;
+			}
+			checksmtpattack(&n_noop, MAXNOOPCOMMANDS, "VERB", e);
+			Verbose = 1;
+			e->e_sendmode = SM_DELIVER;
+			message("250 Verbose mode");
+			break;
+
+		  case CMDONEX:		/* doing one transaction only */
+			checksmtpattack(&n_noop, MAXNOOPCOMMANDS, "ONEX", e);
+			OneXact = TRUE;
+			message("250 Only one transaction");
+			break;
+
+		  case CMDXUSR:		/* initial (user) submission */
+			checksmtpattack(&n_noop, MAXNOOPCOMMANDS, "XUSR", e);
+			UserSubmission = TRUE;
+			message("250 Initial submission");
+			break;
+
+# if SMTPDEBUG
+		  case CMDDBGQSHOW:	/* show queues */
+			printf("Send Queue=");
+			printaddr(e->e_sendqueue, TRUE);
+			break;
+
+		  case CMDDBGDEBUG:	/* set debug mode */
+			tTsetup(tTdvect, sizeof tTdvect, "0-99.1");
+			tTflag(p);
+			message("200 Debug set");
+			break;
+
+# else /* not SMTPDEBUG */
+		  case CMDDBGQSHOW:	/* show queues */
+		  case CMDDBGDEBUG:	/* set debug mode */
+# endif /* SMTPDEBUG */
+		  case CMDLOGBOGUS:	/* bogus command */
+			if (LogLevel > 0)
+				sm_syslog(LOG_CRIT, e->e_id,
+				    "\"%s\" command from %.100s (%.100s)",
+				    c->cmdname, CurSmtpClient,
+				    anynet_ntoa(&RealHostAddr));
+			/* FALL THROUGH */
+
+		  case CMDERROR:	/* unknown command */
+			if (++badcommands > MAXBADCOMMANDS)
+			{
+				message("421 %s Too many bad commands; closing connection",
+					MyHostName);
+				goto doquit;
+			}
+
+			usrerr("500 Command unrecognized: \"%s\"",
+				shortenstring(inp, 203));
+			break;
+
+		  default:
+			errno = 0;
+			syserr("500 smtp: unknown code %d", c->cmdcode);
+			break;
+		}
+	}
+}
+/*
+**  CHECKSMTPATTACK -- check for denial-of-service attack by repetition
+**
+**	Parameters:
+**		pcounter -- pointer to a counter for this command.
+**		maxcount -- maximum value for this counter before we
+**			slow down.
+**		cname -- command name for logging.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Slows down if we seem to be under attack.
+*/
+
+void
+checksmtpattack(pcounter, maxcount, cname, e)
+	volatile int *pcounter;
+	int maxcount;
+	char *cname;
+	ENVELOPE *e;
+{
+	if (++(*pcounter) >= maxcount)
+	{
+		if (*pcounter == maxcount && LogLevel > 5)
+		{
+			sm_syslog(LOG_INFO, e->e_id,
+				"%.100s: %.40s attack?",
+			       CurSmtpClient, cname);
+		}
+		sleep(*pcounter / maxcount);
+	}
+}
+/*
+**  SKIPWORD -- skip a fixed word.
+**
+**	Parameters:
+**		p -- place to start looking.
+**		w -- word to skip.
+**
+**	Returns:
+**		p following w.
+**		NULL on error.
+**
+**	Side Effects:
+**		clobbers the p data area.
+*/
+
+static char *
+skipword(p, w)
+	register char *p;
+	char *w;
+{
+	register char *q;
+	char *firstp = p;
+
+	/* find beginning of word */
+	while (isascii(*p) && isspace(*p))
+		p++;
+	q = p;
+
+	/* find end of word */
+	while (*p != '\0' && *p != ':' && !(isascii(*p) && isspace(*p)))
+		p++;
+	while (isascii(*p) && isspace(*p))
+		*p++ = '\0';
+	if (*p != ':')
+	{
+	  syntax:
+		usrerr("501 Syntax error in parameters scanning \"%s\"",
+			shortenstring(firstp, 203));
+		return (NULL);
+	}
+	*p++ = '\0';
+	while (isascii(*p) && isspace(*p))
+		p++;
+
+	if (*p == '\0')
+		goto syntax;
+
+	/* see if the input word matches desired word */
+	if (strcasecmp(q, w))
+		goto syntax;
+
+	return (p);
+}
+/*
+**  MAIL_ESMTP_ARGS -- process ESMTP arguments from MAIL line
+**
+**	Parameters:
+**		kp -- the parameter key.
+**		vp -- the value of that parameter.
+**		e -- the envelope.
+**
+**	Returns:
+**		none.
+*/
+
+void
+mail_esmtp_args(kp, vp, e)
+	char *kp;
+	char *vp;
+	ENVELOPE *e;
+{
+	if (strcasecmp(kp, "size") == 0)
+	{
+		if (vp == NULL)
+		{
+			usrerr("501 SIZE requires a value");
+			/* NOTREACHED */
+		}
+# if defined(__STDC__) && !defined(BROKEN_ANSI_LIBRARY)
+		e->e_msgsize = strtoul(vp, (char **) NULL, 10);
+# else
+		e->e_msgsize = strtol(vp, (char **) NULL, 10);
+# endif
+	}
+	else if (strcasecmp(kp, "body") == 0)
+	{
+		if (vp == NULL)
+		{
+			usrerr("501 BODY requires a value");
+			/* NOTREACHED */
+		}
+		else if (strcasecmp(vp, "8bitmime") == 0)
+		{
+			SevenBitInput = FALSE;
+		}
+		else if (strcasecmp(vp, "7bit") == 0)
+		{
+			SevenBitInput = TRUE;
+		}
+		else
+		{
+			usrerr("501 Unknown BODY type %s",
+				vp);
+			/* NOTREACHED */
+		}
+		e->e_bodytype = newstr(vp);
+	}
+	else if (strcasecmp(kp, "envid") == 0)
+	{
+		if (vp == NULL)
+		{
+			usrerr("501 ENVID requires a value");
+			/* NOTREACHED */
+		}
+		if (!xtextok(vp))
+		{
+			usrerr("501 Syntax error in ENVID parameter value");
+			/* NOTREACHED */
+		}
+		if (e->e_envid != NULL)
+		{
+			usrerr("501 Duplicate ENVID parameter");
+			/* NOTREACHED */
+		}
+		e->e_envid = newstr(vp);
+	}
+	else if (strcasecmp(kp, "ret") == 0)
+	{
+		if (vp == NULL)
+		{
+			usrerr("501 RET requires a value");
+			/* NOTREACHED */
+		}
+		if (bitset(EF_RET_PARAM, e->e_flags))
+		{
+			usrerr("501 Duplicate RET parameter");
+			/* NOTREACHED */
+		}
+		e->e_flags |= EF_RET_PARAM;
+		if (strcasecmp(vp, "hdrs") == 0)
+			e->e_flags |= EF_NO_BODY_RETN;
+		else if (strcasecmp(vp, "full") != 0)
+		{
+			usrerr("501 Bad argument \"%s\" to RET", vp);
+			/* NOTREACHED */
+		}
+	}
+	else
+	{
+		usrerr("501 %s parameter unrecognized", kp);
+		/* NOTREACHED */
+	}
+}
+/*
+**  RCPT_ESMTP_ARGS -- process ESMTP arguments from RCPT line
+**
+**	Parameters:
+**		a -- the address corresponding to the To: parameter.
+**		kp -- the parameter key.
+**		vp -- the value of that parameter.
+**		e -- the envelope.
+**
+**	Returns:
+**		none.
+*/
+
+void
+rcpt_esmtp_args(a, kp, vp, e)
+	ADDRESS *a;
+	char *kp;
+	char *vp;
+	ENVELOPE *e;
+{
+	if (strcasecmp(kp, "notify") == 0)
+	{
+		char *p;
+
+		if (vp == NULL)
+		{
+			usrerr("501 NOTIFY requires a value");
+			/* NOTREACHED */
+		}
+		a->q_flags &= ~(QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY);
+		a->q_flags |= QHASNOTIFY;
+		if (strcasecmp(vp, "never") == 0)
+			return;
+		for (p = vp; p != NULL; vp = p)
+		{
+			p = strchr(p, ',');
+			if (p != NULL)
+				*p++ = '\0';
+			if (strcasecmp(vp, "success") == 0)
+				a->q_flags |= QPINGONSUCCESS;
+			else if (strcasecmp(vp, "failure") == 0)
+				a->q_flags |= QPINGONFAILURE;
+			else if (strcasecmp(vp, "delay") == 0)
+				a->q_flags |= QPINGONDELAY;
+			else
+			{
+				usrerr("501 Bad argument \"%s\"  to NOTIFY",
+					vp);
+				/* NOTREACHED */
+			}
+		}
+	}
+	else if (strcasecmp(kp, "orcpt") == 0)
+	{
+		if (vp == NULL)
+		{
+			usrerr("501 ORCPT requires a value");
+			/* NOTREACHED */
+		}
+		if (strchr(vp, ';') == NULL || !xtextok(vp))
+		{
+			usrerr("501 Syntax error in ORCPT parameter value");
+			/* NOTREACHED */
+		}
+		if (a->q_orcpt != NULL)
+		{
+			usrerr("501 Duplicate ORCPT parameter");
+			/* NOTREACHED */
+		}
+		a->q_orcpt = newstr(vp);
+	}
+	else
+	{
+		usrerr("501 %s parameter unrecognized", kp);
+		/* NOTREACHED */
+	}
+}
+/*
+**  PRINTVRFYADDR -- print an entry in the verify queue
+**
+**	Parameters:
+**		a -- the address to print
+**		last -- set if this is the last one.
+**		vrfy -- set if this is a VRFY command.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		Prints the appropriate 250 codes.
+*/
+
+void
+printvrfyaddr(a, last, vrfy)
+	register ADDRESS *a;
+	bool last;
+	bool vrfy;
+{
+	char fmtbuf[20];
+
+	if (vrfy && a->q_mailer != NULL &&
+	    !bitnset(M_VRFY250, a->q_mailer->m_flags))
+		strcpy(fmtbuf, "252");
+	else
+		strcpy(fmtbuf, "250");
+	fmtbuf[3] = last ? ' ' : '-';
+
+	if (a->q_fullname == NULL)
+	{
+		if (strchr(a->q_user, '@') == NULL)
+			strcpy(&fmtbuf[4], "<%s@%s>");
+		else
+			strcpy(&fmtbuf[4], "<%s>");
+		message(fmtbuf, a->q_user, MyHostName);
+	}
+	else
+	{
+		if (strchr(a->q_user, '@') == NULL)
+			strcpy(&fmtbuf[4], "%s <%s@%s>");
+		else
+			strcpy(&fmtbuf[4], "%s <%s>");
+		message(fmtbuf, a->q_fullname, a->q_user, MyHostName);
+	}
+}
+/*
+**  RUNINCHILD -- return twice -- once in the child, then in the parent again
+**
+**	Parameters:
+**		label -- a string used in error messages
+**
+**	Returns:
+**		zero in the child
+**		one in the parent
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+runinchild(label, e)
+	char *label;
+	register ENVELOPE *e;
+{
+	pid_t childpid;
+
+	if (!OneXact)
+	{
+		/*
+		**  Disable child process reaping, in case ETRN has preceeded
+		**  MAIL command, and then fork.
+		*/
+
+		(void) blocksignal(SIGCHLD);
+
+		childpid = dofork();
+		if (childpid < 0)
+		{
+			syserr("451 %s: cannot fork", label);
+			(void) releasesignal(SIGCHLD);
+			return (1);
+		}
+		if (childpid > 0)
+		{
+			auto int st;
+
+			/* parent -- wait for child to complete */
+			setproctitle("server %s child wait", CurSmtpClient);
+			st = waitfor(childpid);
+			if (st == -1)
+				syserr("451 %s: lost child", label);
+			else if (!WIFEXITED(st))
+				syserr("451 %s: died on signal %d",
+					label, st & 0177);
+
+			/* if we exited on a QUIT command, complete the process */
+			if (WEXITSTATUS(st) == EX_QUIT)
+			{
+				disconnect(1, e);
+				finis();
+			}
+
+			/* restore the child signal */
+			(void) releasesignal(SIGCHLD);
+
+			return (1);
+		}
+		else
+		{
+			/* child */
+			InChild = TRUE;
+			QuickAbort = FALSE;
+			clearenvelope(e, FALSE);
+			(void) setsignal(SIGCHLD, SIG_DFL);
+			(void) releasesignal(SIGCHLD);
+		}
+	}
+
+	/* open alias database */
+	initmaps(FALSE, e);
+
+	return (0);
+}
+
+# endif /* SMTP */
+/*
+**  HELP -- implement the HELP command.
+**
+**	Parameters:
+**		topic -- the topic we want help for.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		outputs the help file to message output.
+*/
+
+void
+help(topic)
+	char *topic;
+{
+	register FILE *hf;
+	int len;
+	bool noinfo;
+	int sff = SFF_OPENASROOT|SFF_REGONLY;
+	char buf[MAXLINE];
+	extern char Version[];
+
+	if (DontLockReadFiles)
+		sff |= SFF_NOLOCK;
+
+	if (HelpFile == NULL ||
+	    (hf = safefopen(HelpFile, O_RDONLY, 0444, sff)) == NULL)
+	{
+		/* no help */
+		errno = 0;
+		message("502 Sendmail %s -- HELP not implemented", Version);
+		return;
+	}
+
+	if (topic == NULL || *topic == '\0')
+	{
+		topic = "smtp";
+		message("214-This is Sendmail version %s", Version);
+		noinfo = FALSE;
+	}
+	else
+	{
+		makelower(topic);
+		noinfo = TRUE;
+	}
+
+	len = strlen(topic);
+
+	while (fgets(buf, sizeof buf, hf) != NULL)
+	{
+		if (strncmp(buf, topic, len) == 0)
+		{
+			register char *p;
+
+			p = strchr(buf, '\t');
+			if (p == NULL)
+				p = buf;
+			else
+				p++;
+			fixcrlf(p, TRUE);
+			message("214-%s", p);
+			noinfo = FALSE;
+		}
+	}
+
+	if (noinfo)
+		message("504 HELP topic \"%.10s\" unknown", topic);
+	else
+		message("214 End of HELP info");
+	(void) fclose(hf);
+}
diff --git a/src/stab.c b/src/stab.c
new file mode 100644
index 0000000..7d480b9
--- /dev/null
+++ b/src/stab.c
@@ -0,0 +1,241 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)stab.c	8.13 (Berkeley) 4/19/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+/*
+**  STAB -- manage the symbol table
+**
+**	Parameters:
+**		name -- the name to be looked up or inserted.
+**		type -- the type of symbol.
+**		op -- what to do:
+**			ST_ENTER -- enter the name if not
+**				already present.
+**			ST_FIND -- find it only.
+**
+**	Returns:
+**		pointer to a STAB entry for this name.
+**		NULL if not found and not entered.
+**
+**	Side Effects:
+**		can update the symbol table.
+*/
+
+# define STABSIZE	2003
+
+static STAB	*SymTab[STABSIZE];
+
+STAB *
+stab(name, type, op)
+	char *name;
+	int type;
+	int op;
+{
+	register STAB *s;
+	register STAB **ps;
+	register int hfunc;
+	register char *p;
+	int len;
+	extern char lower();
+
+	if (tTd(36, 5))
+		printf("STAB: %s %d ", name, type);
+
+	/*
+	**  Compute the hashing function
+	*/
+
+	hfunc = type;
+	for (p = name; *p != '\0'; p++)
+		hfunc = ((hfunc << 1) ^ (lower(*p) & 0377)) % STABSIZE;
+
+	if (tTd(36, 9))
+		printf("(hfunc=%d) ", hfunc);
+
+	ps = &SymTab[hfunc];
+	if (type == ST_MACRO || type == ST_RULESET)
+	{
+		while ((s = *ps) != NULL &&
+		       (s->s_type != type || strcmp(name, s->s_name)))
+			ps = &s->s_next;
+	}
+	else
+	{
+		while ((s = *ps) != NULL &&
+		       (s->s_type != type || strcasecmp(name, s->s_name)))
+			ps = &s->s_next;
+	}
+
+	/*
+	**  Dispose of the entry.
+	*/
+
+	if (s != NULL || op == ST_FIND)
+	{
+		if (tTd(36, 5))
+		{
+			if (s == NULL)
+				printf("not found\n");
+			else
+			{
+				long *lp = (long *) s->s_class;
+
+				printf("type %d val %lx %lx %lx %lx\n",
+					s->s_type, lp[0], lp[1], lp[2], lp[3]);
+			}
+		}
+		return (s);
+	}
+
+	/*
+	**  Make a new entry and link it in.
+	*/
+
+	if (tTd(36, 5))
+		printf("entered\n");
+
+	/* determine size of new entry */
+#if _FFR_MEMORY_MISER
+	switch (type)
+	{
+	  case ST_CLASS:
+		len = sizeof s->s_class;
+		break;
+
+	  case ST_ADDRESS:
+		len = sizeof s->s_address;
+		break;
+
+	  case ST_MAILER:
+		len = sizeof s->s_mailer;
+
+	  case ST_ALIAS:
+		len = sizeof s->s_alias;
+		break;
+
+	  case ST_MAPCLASS:
+		len = sizeof s->s_mapclass;
+		break;
+
+	  case ST_MAP:
+		len = sizeof s->s_map;
+		break;
+
+	  case ST_HOSTSIG:
+		len = sizeof s->s_hostsig;
+		break;
+
+	  case ST_NAMECANON:
+		len = sizeof s->s_namecanon;
+		break;
+
+	  case ST_MACRO:
+		len = sizeof s->s_macro;
+		break;
+
+	  case ST_RULESET:
+		len = sizeof s->s_ruleset;
+		break;
+
+	  case ST_SERVICE:
+		len = sizeof s->s_service;
+		break;
+
+	  case ST_HEADER:
+		len = sizeof s->s_header;
+		break;
+
+	  default:
+		if (type >= ST_MCI)
+			len = sizeof s->s_mci;
+		else
+		{
+			syserr("stab: unknown symbol type %d", type);
+			len = sizeof s->s_value;
+		}
+		break;
+	}
+	len += sizeof *s - sizeof s->s_value;
+#else
+	len = sizeof *s;
+#endif
+
+	/* make new entry */
+	s = (STAB *) xalloc(len);
+	bzero((char *) s, len);
+	s->s_name = newstr(name);
+	s->s_type = type;
+	s->s_len = len;
+
+	/* link it in */
+	*ps = s;
+
+	return (s);
+}
+/*
+**  STABAPPLY -- apply function to all stab entries
+**
+**	Parameters:
+**		func -- the function to apply.  It will be given one
+**			parameter (the stab entry).
+**		arg -- an arbitrary argument, passed to func.
+**
+**	Returns:
+**		none.
+*/
+
+void
+stabapply(func, arg)
+	void (*func)__P((STAB *, int));
+	int arg;
+{
+	register STAB **shead;
+	register STAB *s;
+
+	for (shead = SymTab; shead < &SymTab[STABSIZE]; shead++)
+	{
+		for (s = *shead; s != NULL; s = s->s_next)
+		{
+			if (tTd(36, 90))
+				printf("stabapply: trying %d/%s\n",
+					s->s_type, s->s_name);
+			func(s, arg);
+		}
+	}
+}
diff --git a/src/stats.c b/src/stats.c
new file mode 100644
index 0000000..cb0f9dd
--- /dev/null
+++ b/src/stats.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)stats.c	8.11 (Berkeley) 4/9/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+# include "mailstats.h"
+
+struct statistics	Stat;
+
+bool	GotStats = FALSE;	/* set when we have stats to merge */
+
+#define ONE_K		1000		/* one thousand (twenty-four?) */
+#define KBYTES(x)	(((x) + (ONE_K - 1)) / ONE_K)
+/*
+**  MARKSTATS -- mark statistics
+*/
+
+void
+markstats(e, to)
+	register ENVELOPE *e;
+	register ADDRESS *to;
+{
+	if (to == NULL)
+	{
+		if (e->e_from.q_mailer != NULL)
+		{
+			Stat.stat_nf[e->e_from.q_mailer->m_mno]++;
+			Stat.stat_bf[e->e_from.q_mailer->m_mno] +=
+				KBYTES(e->e_msgsize);
+		}
+	}
+	else
+	{
+		Stat.stat_nt[to->q_mailer->m_mno]++;
+		Stat.stat_bt[to->q_mailer->m_mno] += KBYTES(e->e_msgsize);
+	}
+	GotStats = TRUE;
+}
+/*
+**  POSTSTATS -- post statistics in the statistics file
+**
+**	Parameters:
+**		sfile -- the name of the statistics file.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		merges the Stat structure with the sfile file.
+*/
+
+void
+poststats(sfile)
+	char *sfile;
+{
+	register int fd;
+	struct statistics stat;
+	extern off_t lseek();
+
+	if (sfile == NULL || !GotStats)
+		return;
+
+	(void) time(&Stat.stat_itime);
+	Stat.stat_size = sizeof Stat;
+
+	fd = safeopen(sfile, O_RDWR, 0644, SFF_REGONLY|SFF_NOLINK|SFF_OPENASROOT);
+	if (fd < 0)
+	{
+		errno = 0;
+		return;
+	}
+	if (read(fd, (char *) &stat, sizeof stat) == sizeof stat &&
+	    stat.stat_size == sizeof stat)
+	{
+		/* merge current statistics into statfile */
+		register int i;
+
+		for (i = 0; i < MAXMAILERS; i++)
+		{
+			stat.stat_nf[i] += Stat.stat_nf[i];
+			stat.stat_bf[i] += Stat.stat_bf[i];
+			stat.stat_nt[i] += Stat.stat_nt[i];
+			stat.stat_bt[i] += Stat.stat_bt[i];
+		}
+	}
+	else
+		bcopy((char *) &Stat, (char *) &stat, sizeof stat);
+
+	/* write out results */
+	(void) lseek(fd, (off_t) 0, 0);
+	(void) write(fd, (char *) &stat, sizeof stat);
+	(void) close(fd);
+
+	/* clear the structure to avoid future disappointment */
+	bzero(&Stat, sizeof stat);
+	GotStats = FALSE;
+}
diff --git a/src/sysexits.c b/src/sysexits.c
new file mode 100644
index 0000000..3695536
--- /dev/null
+++ b/src/sysexits.c
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)sysexits.c	8.7 (Berkeley) 2/1/97";
+#endif /* not lint */
+
+#include <sendmail.h>
+
+/*
+**  SYSEXITS.C -- error messages corresponding to sysexits.h
+**
+**	If the first character of the string is a colon, interpolate
+**	the current errno after the rest of the string.
+*/
+
+char *SysExMsg[] =
+{
+	/* 64 USAGE */		" 500 Bad usage",
+	/* 65 DATAERR */	" 501 Data format error",
+	/* 66 NOINPUT */	":550 Cannot open input",
+	/* 67 NOUSER */		" 550 User unknown",
+	/* 68 NOHOST */		" 550 Host unknown",
+	/* 69 UNAVAILABLE */	" 554 Service unavailable",
+	/* 70 SOFTWARE */	":554 Internal error",
+	/* 71 OSERR */		":451 Operating system error",
+	/* 72 OSFILE */		":554 System file missing",
+	/* 73 CANTCREAT */	":550 Can't create output",
+	/* 74 IOERR */		":451 I/O error",
+	/* 75 TEMPFAIL */	" 250 Deferred",
+	/* 76 PROTOCOL */	" 554 Remote protocol error",
+	/* 77 NOPERM */		":550 Insufficient permission",
+	/* 78 CONFIG */		" 554 Local configuration error",
+};
+
+int N_SysEx = sizeof(SysExMsg) / sizeof(SysExMsg[0]);
+/*
+**  DSNTOEXITSTAT -- convert DSN-style error code to EX_ style.
+**
+**	Parameters:
+**		dsncode -- the text of the DSN-style code.
+**
+**	Returns:
+**		The corresponding exit status.
+*/
+
+int
+dsntoexitstat(dsncode)
+	char *dsncode;
+{
+	int code2, code3;
+
+	/* first the easy cases.... */
+	if (*dsncode == '2')
+		return EX_OK;
+	if (*dsncode == '4')
+		return EX_TEMPFAIL;
+
+	/* now decode the other two field parts */
+	if (*++dsncode == '.')
+		dsncode++;
+	code2 = atoi(dsncode);
+	while (*dsncode != '\0' && *dsncode != '.')
+		dsncode++;
+	if (*dsncode != '\0')
+		dsncode++;
+	code3 = atoi(dsncode);
+
+	/* and do a nested switch to work them out */
+	switch (code2)
+	{
+	  case 0:	/* Other or Undefined status */
+		return EX_UNAVAILABLE;
+
+	  case 1:	/* Address Status */
+		switch (code3)
+		{
+		  case 0:	/* Other Address Status */
+			return EX_DATAERR;
+
+		  case 1:	/* Bad destination mailbox address */
+		  case 6:	/* Mailbox has moved, No forwarding address */
+			return EX_NOUSER;
+
+		  case 2:	/* Bad destination system address */
+		  case 8:	/* Bad senders system address */
+			return EX_NOHOST;
+
+		  case 3:	/* Bad destination mailbox address syntax */
+		  case 7:	/* Bad senders mailbox address syntax */
+			return EX_USAGE;
+
+		  case 4:	/* Destination mailbox address ambiguous */
+			return EX_UNAVAILABLE;
+
+		  case 5:	/* Destination address valid */
+			return EX_OK;
+		}
+		break;
+
+	  case 2:	/* Mailbox Status */
+		switch (code3)
+		{
+		  case 0:	/* Other or Undefined mailbox status */
+		  case 1:	/* Mailbox disabled, not acccepting messages */
+		  case 2:	/* Mailbox full */
+		  case 4:	/* Mailing list expansion problem */
+			return EX_UNAVAILABLE;
+
+		  case 3:	/* Message length exceeds administrative lim */
+			return EX_DATAERR;
+		}
+		break;
+
+	  case 3:	/* System Status */
+		return EX_OSERR;
+
+	  case 4:	/* Network and Routing Status */
+		switch (code3)
+		{
+		  case 0:	/* Other or undefined network or routing stat */
+			return EX_IOERR;
+
+		  case 1:	/* No answer from host */
+		  case 3:	/* Routing server failure */
+		  case 5:	/* Network congestion */
+			return EX_TEMPFAIL;
+
+		  case 2:	/* Bad connection */
+			return EX_IOERR;
+
+		  case 4:	/* Unable to route */
+			return EX_PROTOCOL;
+
+		  case 6:	/* Routing loop detected */
+			return EX_CONFIG;
+
+		  case 7:	/* Delivery time expired */
+			return EX_UNAVAILABLE;
+		}
+		break;
+
+	  case 5:	/* Protocol Status */
+		return EX_PROTOCOL;
+
+	  case 6:	/* Message Content or Media Status */
+		return EX_UNAVAILABLE;
+
+	  case 7:	/* Security Status */
+		return EX_DATAERR;
+	}
+	return EX_CONFIG;
+}
diff --git a/src/sysexits.h b/src/sysexits.h
new file mode 100644
index 0000000..464cb11
--- /dev/null
+++ b/src/sysexits.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sysexits.h	8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef	_SYSEXITS_H_
+#define	_SYSEXITS_H_
+
+/*
+ *  SYSEXITS.H -- Exit status codes for system programs.
+ *
+ *	This include file attempts to categorize possible error
+ *	exit statuses for system programs, notably delivermail
+ *	and the Berkeley network.
+ *
+ *	Error numbers begin at EX__BASE to reduce the possibility of
+ *	clashing with other exit statuses that random programs may
+ *	already return.  The meaning of the codes is approximately
+ *	as follows:
+ *
+ *	EX_USAGE -- The command was used incorrectly, e.g., with
+ *		the wrong number of arguments, a bad flag, a bad
+ *		syntax in a parameter, or whatever.
+ *	EX_DATAERR -- The input data was incorrect in some way.
+ *		This should only be used for user's data & not
+ *		system files.
+ *	EX_NOINPUT -- An input file (not a system file) did not
+ *		exist or was not readable.  This could also include
+ *		errors like "No message" to a mailer (if it cared
+ *		to catch it).
+ *	EX_NOUSER -- The user specified did not exist.  This might
+ *		be used for mail addresses or remote logins.
+ *	EX_NOHOST -- The host specified did not exist.  This is used
+ *		in mail addresses or network requests.
+ *	EX_UNAVAILABLE -- A service is unavailable.  This can occur
+ *		if a support program or file does not exist.  This
+ *		can also be used as a catchall message when something
+ *		you wanted to do doesn't work, but you don't know
+ *		why.
+ *	EX_SOFTWARE -- An internal software error has been detected.
+ *		This should be limited to non-operating system related
+ *		errors as possible.
+ *	EX_OSERR -- An operating system error has been detected.
+ *		This is intended to be used for such things as "cannot
+ *		fork", "cannot create pipe", or the like.  It includes
+ *		things like getuid returning a user that does not
+ *		exist in the passwd file.
+ *	EX_OSFILE -- Some system file (e.g., /etc/passwd, /etc/utmp,
+ *		etc.) does not exist, cannot be opened, or has some
+ *		sort of error (e.g., syntax error).
+ *	EX_CANTCREAT -- A (user specified) output file cannot be
+ *		created.
+ *	EX_IOERR -- An error occurred while doing I/O on some file.
+ *	EX_TEMPFAIL -- temporary failure, indicating something that
+ *		is not really an error.  In sendmail, this means
+ *		that a mailer (e.g.) could not create a connection,
+ *		and the request should be reattempted later.
+ *	EX_PROTOCOL -- the remote system returned something that
+ *		was "not possible" during a protocol exchange.
+ *	EX_NOPERM -- You did not have sufficient permission to
+ *		perform the operation.  This is not intended for
+ *		file system problems, which should use NOINPUT or
+ *		CANTCREAT, but rather for higher level permissions.
+ */
+
+#define EX_OK		0	/* successful termination */
+
+#define EX__BASE	64	/* base value for error messages */
+
+#define EX_USAGE	64	/* command line usage error */
+#define EX_DATAERR	65	/* data format error */
+#define EX_NOINPUT	66	/* cannot open input */
+#define EX_NOUSER	67	/* addressee unknown */
+#define EX_NOHOST	68	/* host name unknown */
+#define EX_UNAVAILABLE	69	/* service unavailable */
+#define EX_SOFTWARE	70	/* internal software error */
+#define EX_OSERR	71	/* system error (e.g., can't fork) */
+#define EX_OSFILE	72	/* critical OS file missing */
+#define EX_CANTCREAT	73	/* can't create (user) output file */
+#define EX_IOERR	74	/* input/output error */
+#define EX_TEMPFAIL	75	/* temp failure; user is invited to retry */
+#define EX_PROTOCOL	76	/* remote error in protocol */
+#define EX_NOPERM	77	/* permission denied */
+#define EX_CONFIG	78	/* configuration error */
+
+#define EX__MAX	78	/* maximum listed value */
+
+#endif /* !_SYSEXITS_H_ */
diff --git a/src/trace.c b/src/trace.c
new file mode 100644
index 0000000..49a1ae0
--- /dev/null
+++ b/src/trace.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)trace.c	8.6 (Berkeley) 2/1/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+
+/*
+**  TtSETUP -- set up for trace package.
+**
+**	Parameters:
+**		vect -- pointer to trace vector.
+**		size -- number of flags in trace vector.
+**		defflags -- flags to set if no value given.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		environment is set up.
+*/
+
+u_char		*tTvect;
+int		tTsize;
+static char	*DefFlags;
+
+void
+tTsetup(vect, size, defflags)
+	u_char *vect;
+	int size;
+	char *defflags;
+{
+	tTvect = vect;
+	tTsize = size;
+	DefFlags = defflags;
+}
+/*
+**  TtFLAG -- process an external trace flag description.
+**
+**	Parameters:
+**		s -- the trace flag.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		sets/clears trace flags.
+*/
+
+void
+tTflag(s)
+	register char *s;
+{
+	unsigned int first, last;
+	register unsigned int i;
+
+	if (*s == '\0')
+		s = DefFlags;
+
+	for (;;)
+	{
+		/* find first flag to set */
+		i = 0;
+		while (isdigit(*s))
+			i = i * 10 + (*s++ - '0');
+		first = i;
+
+		/* find last flag to set */
+		if (*s == '-')
+		{
+			i = 0;
+			while (isdigit(*++s))
+				i = i * 10 + (*s - '0');
+		}
+		last = i;
+
+		/* find the level to set it to */
+		i = 1;
+		if (*s == '.')
+		{
+			i = 0;
+			while (isdigit(*++s))
+				i = i * 10 + (*s - '0');
+		}
+
+		/* clean up args */
+		if (first >= tTsize)
+			first = tTsize - 1;
+		if (last >= tTsize)
+			last = tTsize - 1;
+
+		/* set the flags */
+		while (first <= last)
+			tTvect[first++] = i;
+
+		/* more arguments? */
+		if (*s++ == '\0')
+			return;
+	}
+}
diff --git a/src/udb.c b/src/udb.c
new file mode 100644
index 0000000..cf77bdc
--- /dev/null
+++ b/src/udb.c
@@ -0,0 +1,1160 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "sendmail.h"
+
+#ifndef lint
+#if USERDB
+static char sccsid [] = "@(#)udb.c	8.51 (Berkeley) 5/29/97 (with USERDB)";
+#else
+static char sccsid [] = "@(#)udb.c	8.51 (Berkeley) 5/29/97 (without USERDB)";
+#endif
+#endif
+
+#if USERDB
+
+#include <errno.h>
+
+#ifdef NEWDB
+# include <db.h>
+#else
+# define DBT	struct _data_base_thang_
+DBT
+{
+	void	*data;		/* pointer to data */
+	size_t	size;		/* length of data */
+};
+#endif
+
+#ifdef HESIOD
+# include <hesiod.h>
+#endif /* HESIOD */
+
+/*
+**  UDB.C -- interface between sendmail and Berkeley User Data Base.
+**
+**	This depends on the 4.4BSD db package.
+*/
+
+
+struct udbent
+{
+	char	*udb_spec;		/* string version of spec */
+	int	udb_type;		/* type of entry */
+	char	*udb_default;		/* default host for outgoing mail */
+	union
+	{
+		/* type UE_REMOTE -- do remote call for lookup */
+		struct
+		{
+			struct sockaddr_in _udb_addr;	/* address */
+			int		_udb_timeout;	/* timeout */
+		} udb_remote;
+#define udb_addr	udb_u.udb_remote._udb_addr
+#define udb_timeout	udb_u.udb_remote._udb_timeout
+
+		/* type UE_FORWARD -- forward message to remote */
+		struct
+		{
+			char	*_udb_fwdhost;	/* name of forward host */
+		} udb_forward;
+#define udb_fwdhost	udb_u.udb_forward._udb_fwdhost
+
+#ifdef NEWDB
+		/* type UE_FETCH -- lookup in local database */
+		struct
+		{
+			char	*_udb_dbname;	/* pathname of database */
+			DB	*_udb_dbp;	/* open database ptr */
+		} udb_lookup;
+#define udb_dbname	udb_u.udb_lookup._udb_dbname
+#define udb_dbp		udb_u.udb_lookup._udb_dbp
+#endif
+	} udb_u;
+};
+
+#define UDB_EOLIST	0	/* end of list */
+#define UDB_SKIP	1	/* skip this entry */
+#define UDB_REMOTE	2	/* look up in remote database */
+#define UDB_DBFETCH	3	/* look up in local database */
+#define UDB_FORWARD	4	/* forward to remote host */
+#define UDB_HESIOD	5	/* look up via hesiod */
+
+#define MAXUDBENT	10	/* maximum number of UDB entries */
+
+
+struct option
+{
+	char	*name;
+	char	*val;
+};
+
+extern int _udbx_init __P((ENVELOPE *));
+/*
+**  UDBEXPAND -- look up user in database and expand
+**
+**	Parameters:
+**		a -- address to expand.
+**		sendq -- pointer to head of sendq to put the expansions in.
+**		aliaslevel -- the current alias nesting depth.
+**		e -- the current envelope.
+**
+**	Returns:
+**		EX_TEMPFAIL -- if something "odd" happened -- probably due
+**			to accessing a file on an NFS server that is down.
+**		EX_OK -- otherwise.
+**
+**	Side Effects:
+**		Modifies sendq.
+*/
+
+int	UdbPort = 1616;
+int	UdbTimeout = 10;
+
+struct udbent	UdbEnts[MAXUDBENT + 1];
+int		UdbSock = -1;
+bool		UdbInitialized = FALSE;
+
+int
+udbexpand(a, sendq, aliaslevel, e)
+	register ADDRESS *a;
+	ADDRESS **sendq;
+	int aliaslevel;
+	register ENVELOPE *e;
+{
+	int i;
+	DBT key;
+	DBT info;
+	bool breakout;
+	register struct udbent *up;
+	int keylen;
+	int naddrs;
+	char keybuf[MAXKEY];
+
+	if (tTd(28, 1))
+		printf("udbexpand(%s)\n", a->q_paddr);
+
+	/* make certain we are supposed to send to this address */
+	if (bitset(QDONTSEND|QVERIFIED, a->q_flags))
+		return EX_OK;
+	e->e_to = a->q_paddr;
+
+	/* on first call, locate the database */
+	if (!UdbInitialized)
+	{
+		if (_udbx_init(e) == EX_TEMPFAIL)
+			return EX_TEMPFAIL;
+	}
+
+	/* short circuit the process if no chance of a match */
+	if (UdbSpec == NULL || UdbSpec[0] == '\0')
+		return EX_OK;
+
+	/* short circuit name begins with '\\' since it can't possibly match */
+	if (a->q_user[0] == '\\')
+		return EX_OK;
+
+	/* if name is too long, assume it won't match */
+	if (strlen(a->q_user) > (SIZE_T) sizeof keybuf - 12)
+		return EX_OK;
+
+	/* if name begins with a colon, it indicates our metadata */
+	if (a->q_user[0] == ':')
+		return EX_OK;
+
+	/* build actual database key */
+	(void) strcpy(keybuf, a->q_user);
+	(void) strcat(keybuf, ":maildrop");
+	keylen = strlen(keybuf);
+
+	breakout = FALSE;
+	for (up = UdbEnts; !breakout; up++)
+	{
+		char *user;
+		int usersize;
+		int userleft;
+		char userbuf[MEMCHUNKSIZE];
+#if defined(HESIOD) && defined(HES_GETMAILHOST)
+		char pobuf[MAXNAME];
+#endif
+
+		user = userbuf;
+		userbuf[0] = '\0';
+		usersize = sizeof userbuf;
+		userleft = sizeof userbuf - 1;
+
+		/*
+		**  Select action based on entry type.
+		**
+		**	On dropping out of this switch, "class" should
+		**	explain the type of the data, and "user" should
+		**	contain the user information.
+		*/
+
+		switch (up->udb_type)
+		{
+#ifdef NEWDB
+		  case UDB_DBFETCH:
+			key.data = keybuf;
+			key.size = keylen;
+			if (tTd(28, 80))
+				printf("udbexpand: trying %s (%d) via db\n",
+					keybuf, keylen);
+			i = (*up->udb_dbp->seq)(up->udb_dbp, &key, &info, R_CURSOR);
+			if (i > 0 || info.size <= 0)
+			{
+				if (tTd(28, 2))
+					printf("udbexpand: no match on %s (%d)\n",
+						keybuf, keylen);
+				break;
+			}
+			if (tTd(28, 80))
+				printf("udbexpand: match %.*s: %.*s\n",
+					(int) key.size, (char *) key.data,
+					(int) info.size, (char *) info.data);
+
+			a->q_flags &= ~QSELFREF;
+			while (i == 0 && key.size == keylen &&
+					bcmp(key.data, keybuf, keylen) == 0)
+			{
+				char *p;
+
+				if (bitset(EF_VRFYONLY, e->e_flags))
+				{
+					a->q_flags |= QVERIFIED;
+					return EX_OK;
+				}
+
+				breakout = TRUE;
+				if (info.size >= userleft - 1)
+				{
+					char *nuser;
+					int size = MEMCHUNKSIZE;
+
+					if (info.size > MEMCHUNKSIZE)
+						size = info.size;
+					nuser = xalloc(usersize + size);
+
+					bcopy(user, nuser, usersize);
+					if (user != userbuf)
+						free(user);
+					user = nuser;
+					usersize += size;
+					userleft += size;
+				}
+				p = &user[strlen(user)];
+				if (p != user)
+				{
+					*p++ = ',';
+					userleft--;
+				}
+				bcopy(info.data, p, info.size);
+				p[info.size] = '\0';
+				userleft -= info.size;
+
+				/* get the next record */
+				i = (*up->udb_dbp->seq)(up->udb_dbp, &key, &info, R_NEXT);
+			}
+
+			/* if nothing ever matched, try next database */
+			if (!breakout)
+				break;
+
+			message("expanded to %s", user);
+			if (LogLevel >= 10)
+				sm_syslog(LOG_INFO, e->e_id,
+					"expand %.100s => %s",
+					e->e_to,
+					shortenstring(user, 203));
+			naddrs = sendtolist(user, a, sendq, aliaslevel + 1, e);
+			if (naddrs > 0 && !bitset(QSELFREF, a->q_flags))
+			{
+				if (tTd(28, 5))
+				{
+					printf("udbexpand: QDONTSEND ");
+					printaddr(a, FALSE);
+				}
+				a->q_flags |= QDONTSEND;
+			}
+			if (i < 0)
+			{
+				syserr("udbexpand: db-get %.*s stat %d",
+					key.size, key.data, i);
+				return EX_TEMPFAIL;
+			}
+
+			/*
+			**  If this address has a -request address, reflect
+			**  it into the envelope.
+			*/
+
+			(void) strcpy(keybuf, a->q_user);
+			(void) strcat(keybuf, ":mailsender");
+			keylen = strlen(keybuf);
+			key.data = keybuf;
+			key.size = keylen;
+			i = (*up->udb_dbp->get)(up->udb_dbp, &key, &info, 0);
+			if (i != 0 || info.size <= 0)
+				break;
+			a->q_owner = xalloc(info.size + 1);
+			bcopy(info.data, a->q_owner, info.size);
+			a->q_owner[info.size] = '\0';
+
+			/* announce delivery; NORECEIPT bit set later */
+			if (e->e_xfp != NULL)
+			{
+				fprintf(e->e_xfp,
+					"Message delivered to mailing list %s\n",
+					a->q_paddr);
+			}
+			e->e_flags |= EF_SENDRECEIPT;
+			a->q_flags |= QDELIVERED|QEXPANDED;
+			break;
+#endif
+
+#ifdef HESIOD
+		  case UDB_HESIOD:
+			key.data = keybuf;
+			key.size = keylen;
+			if (tTd(28, 80))
+				printf("udbexpand: trying %s (%d) via hesiod\n",
+					keybuf, keylen);
+			/* look up the key via hesiod */
+			i = hes_udb_get(&key, &info);
+			if (i < 0)
+			{
+				syserr("udbexpand: hesiod-get %.*s stat %d",
+					key.size, key.data, i);
+				return EX_TEMPFAIL;
+			}
+			else if (i > 0 || info.size <= 0)
+			{
+#if HES_GETMAILHOST
+				struct hes_postoffice *hp;
+#endif
+
+				if (tTd(28, 2))
+					printf("udbexpand: no match on %s (%d)\n",
+						keybuf, keylen);
+#if HES_GETMAILHOST
+				if (tTd(28, 8))
+					printf("  ... trying hes_getmailhost(%s)\n",
+						a->q_user);
+				hp = hes_getmailhost(a->q_user);
+				if (hp == NULL)
+				{
+					if (hes_error() == HES_ER_NET)
+					{
+						syserr("udbexpand: hesiod-getmail %s stat %d",
+							a->q_user, hes_error());
+						return EX_TEMPFAIL;
+					}
+					if (tTd(28, 2))
+						printf("hes_getmailhost(%s): %d\n",
+							a->q_user, hes_error());
+					break;
+				}
+				if (strlen(hp->po_name) + strlen(hp->po_host) >
+				    sizeof pobuf - 2)
+				{
+					if (tTd(28, 2))
+						printf("hes_getmailhost(%s): expansion too long: %.30s@%.30s\n",
+							a->q_user,
+							hp->po_name,
+							hp->po_host);
+					break;
+				}
+				info.data = pobuf;
+				snprintf(pobuf, sizeof pobuf, "%s@%s",
+					hp->po_name, hp->po_host);
+				info.size = strlen(info.data);
+#else
+				break;
+#endif
+			}
+			if (tTd(28, 80))
+				printf("udbexpand: match %.*s: %.*s\n",
+					key.size, key.data, info.size, info.data);
+			a->q_flags &= ~QSELFREF;
+
+			if (bitset(EF_VRFYONLY, e->e_flags))
+			{
+				a->q_flags |= QVERIFIED;
+				return EX_OK;
+			}
+
+			breakout = TRUE;
+			if (info.size >= usersize)
+				user = xalloc(info.size + 1);
+			bcopy(info.data, user, info.size);
+			user[info.size] = '\0';
+
+			message("hesioded to %s", user);
+			if (LogLevel >= 10)
+				sm_syslog(LOG_INFO, e->e_id,
+					"hesiod %.100s => %s",
+					e->e_to,
+					shortenstring(user, 203));
+			naddrs = sendtolist(user, a, sendq, aliaslevel + 1, e);
+
+			if (naddrs > 0 && !bitset(QSELFREF, a->q_flags))
+			{
+				if (tTd(28, 5))
+				{
+					printf("udbexpand: QDONTSEND ");
+					printaddr(a, FALSE);
+				}
+				a->q_flags |= QDONTSEND;
+			}
+
+			/*
+			**  If this address has a -request address, reflect
+			**  it into the envelope.
+			*/
+
+			(void) strcpy(keybuf, a->q_user);
+			(void) strcat(keybuf, ":mailsender");
+			keylen = strlen(keybuf);
+			key.data = keybuf;
+			key.size = keylen;
+			i = hes_udb_get(&key, &info);
+			if (i != 0 || info.size <= 0)
+				break;
+			a->q_owner = xalloc(info.size + 1);
+			bcopy(info.data, a->q_owner, info.size);
+			a->q_owner[info.size] = '\0';
+			break;
+#endif /* HESIOD */
+
+		  case UDB_REMOTE:
+			/* not yet implemented */
+			break;
+
+		  case UDB_FORWARD:
+			if (bitset(EF_VRFYONLY, e->e_flags))
+				return EX_OK;
+			i = strlen(up->udb_fwdhost) + strlen(a->q_user) + 1;
+			if (i >= usersize)
+			{
+				usersize = i + 1;
+				user = xalloc(usersize);
+			}
+			(void) snprintf(user, usersize, "%s@%s",
+				a->q_user, up->udb_fwdhost);
+			message("expanded to %s", user);
+			a->q_flags &= ~QSELFREF;
+			naddrs = sendtolist(user, a, sendq, aliaslevel + 1, e);
+			if (naddrs > 0 && !bitset(QSELFREF, a->q_flags))
+			{
+				if (tTd(28, 5))
+				{
+					printf("udbexpand: QDONTSEND ");
+					printaddr(a, FALSE);
+				}
+				a->q_flags |= QDONTSEND;
+			}
+			breakout = TRUE;
+			break;
+
+		  case UDB_EOLIST:
+			breakout = TRUE;
+			break;
+
+		  default:
+			/* unknown entry type */
+			break;
+		}
+		if (user != userbuf)
+			free(user);
+	}
+	return EX_OK;
+}
+/*
+**  UDBSENDER -- return canonical external name of sender, given local name
+**
+**	Parameters:
+**		sender -- the name of the sender on the local machine.
+**
+**	Returns:
+**		The external name for this sender, if derivable from the
+**			database.
+**		NULL -- if nothing is changed from the database.
+**
+**	Side Effects:
+**		none.
+*/
+
+char *
+udbsender(sender)
+	char *sender;
+{
+	extern char *udbmatch();
+
+	return udbmatch(sender, "mailname");
+}
+
+
+char *
+udbmatch(user, field)
+	char *user;
+	char *field;
+{
+	register char *p;
+	register struct udbent *up;
+	int i;
+	int keylen;
+	DBT key, info;
+	char keybuf[MAXKEY];
+
+	if (tTd(28, 1))
+		printf("udbmatch(%s, %s)\n", user, field);
+
+	if (!UdbInitialized)
+	{
+		if (_udbx_init(CurEnv) == EX_TEMPFAIL)
+			return NULL;
+	}
+
+	/* short circuit if no spec */
+	if (UdbSpec == NULL || UdbSpec[0] == '\0')
+		return NULL;
+
+	/* short circuit name begins with '\\' since it can't possibly match */
+	if (user[0] == '\\')
+		return NULL;
+
+	/* long names can never match and are a pain to deal with */
+	i = strlen(field);
+	if (i < sizeof "maildrop")
+		i = sizeof "maildrop";
+	if ((strlen(user) + i) > sizeof keybuf - 4)
+		return NULL;
+
+	/* names beginning with colons indicate metadata */
+	if (user[0] == ':')
+		return NULL;
+
+	/* build database key */
+	(void) strcpy(keybuf, user);
+	(void) strcat(keybuf, ":");
+	(void) strcat(keybuf, field);
+	keylen = strlen(keybuf);
+
+	for (up = UdbEnts; up->udb_type != UDB_EOLIST; up++)
+	{
+		/*
+		**  Select action based on entry type.
+		*/
+
+		switch (up->udb_type)
+		{
+#ifdef NEWDB
+		  case UDB_DBFETCH:
+			key.data = keybuf;
+			key.size = keylen;
+			i = (*up->udb_dbp->get)(up->udb_dbp, &key, &info, 0);
+			if (i != 0 || info.size <= 0)
+			{
+				if (tTd(28, 2))
+					printf("udbmatch: no match on %s (%d) via db\n",
+							keybuf, keylen);
+				continue;
+			}
+
+			p = xalloc(info.size + 1);
+			bcopy(info.data, p, info.size);
+			p[info.size] = '\0';
+			if (tTd(28, 1))
+				printf("udbmatch ==> %s\n", p);
+			return p;
+			break;
+#endif
+
+#ifdef HESIOD
+		  case UDB_HESIOD:
+			key.data = keybuf;
+			key.size = keylen;
+			i = hes_udb_get(&key, &info); 
+			if (i != 0 || info.size <= 0)
+			{
+				if (tTd(28, 2))
+					printf("udbmatch: no match on %s (%d) via hesiod\n",
+							keybuf, keylen);
+				continue;
+			}
+
+			p = xalloc(info.size + 1);
+			bcopy(info.data, p, info.size);
+			p[info.size] = '\0';
+			if (tTd(28, 1))
+				printf("udbmatch ==> %s\n", p);
+			return p;
+#endif /* HESIOD */
+		}
+	}
+
+	if (strcmp(field, "mailname") != 0)
+		return NULL;
+
+	/*
+	**  Nothing yet.  Search again for a default case.  But only
+	**  use it if we also have a forward (:maildrop) pointer already
+	**  in the database.
+	*/
+
+	/* build database key */
+	(void) strcpy(keybuf, user);
+	(void) strcat(keybuf, ":maildrop");
+	keylen = strlen(keybuf);
+
+	for (up = UdbEnts; up->udb_type != UDB_EOLIST; up++)
+	{
+		switch (up->udb_type)
+		{
+#ifdef NEWDB
+		  case UDB_DBFETCH:
+			/* get the default case for this database */
+			if (up->udb_default == NULL)
+			{
+				key.data = ":default:mailname";
+				key.size = strlen(key.data);
+				i = (*up->udb_dbp->get)(up->udb_dbp, &key, &info, 0);
+				if (i != 0 || info.size <= 0)
+				{
+					/* no default case */
+					up->udb_default = "";
+					continue;
+				}
+
+				/* save the default case */
+				up->udb_default = xalloc(info.size + 1);
+				bcopy(info.data, up->udb_default, info.size);
+				up->udb_default[info.size] = '\0';
+			}
+			else if (up->udb_default[0] == '\0')
+				continue;
+
+			/* we have a default case -- verify user:maildrop */
+			key.data = keybuf;
+			key.size = keylen;
+			i = (*up->udb_dbp->get)(up->udb_dbp, &key, &info, 0);
+			if (i != 0 || info.size <= 0)
+			{
+				/* nope -- no aliasing for this user */
+				continue;
+			}
+
+			/* they exist -- build the actual address */
+			p = xalloc(strlen(user) + strlen(up->udb_default) + 2);
+			(void) strcpy(p, user);
+			(void) strcat(p, "@");
+			(void) strcat(p, up->udb_default);
+			if (tTd(28, 1))
+				printf("udbmatch ==> %s\n", p);
+			return p;
+			break;
+#endif
+
+#ifdef HESIOD
+		  case UDB_HESIOD:
+			/* get the default case for this database */
+			if (up->udb_default == NULL)
+			{
+				key.data = ":default:mailname";
+				key.size = strlen(key.data);
+				i = hes_udb_get(&key, &info); 
+
+				if (i != 0 || info.size <= 0)
+				{
+					/* no default case */
+					up->udb_default = "";
+					continue;
+				}
+
+				/* save the default case */
+				up->udb_default = xalloc(info.size + 1);
+				bcopy(info.data, up->udb_default, info.size);
+				up->udb_default[info.size] = '\0';
+			}
+			else if (up->udb_default[0] == '\0')
+				continue;
+
+			/* we have a default case -- verify user:maildrop */
+			key.data = keybuf;
+			key.size = keylen;
+			i = hes_udb_get(&key, &info);
+			if (i != 0 || info.size <= 0)
+			{
+				/* nope -- no aliasing for this user */
+				continue;
+			}
+
+			/* they exist -- build the actual address */
+			p = xalloc(strlen(user) + strlen(up->udb_default) + 2);
+			(void) strcpy(p, user);
+			(void) strcat(p, "@");
+			(void) strcat(p, up->udb_default);
+			if (tTd(28, 1))
+				printf("udbmatch ==> %s\n", p);
+			return p;
+			break;
+#endif /* HESIOD */
+		}
+	}
+
+	/* still nothing....  too bad */
+	return NULL;
+}
+/*
+**  UDB_MAP_LOOKUP -- look up arbitrary entry in user database map
+**
+**	Parameters:
+**		map -- the map being queried.
+**		name -- the name to look up.
+**		av -- arguments to the map lookup.
+**		statp -- to get any error status.
+**
+**	Returns:
+**		NULL if name not found in map.
+**		The rewritten name otherwise.
+*/
+
+char *
+udb_map_lookup(map, name, av, statp)
+	MAP *map;
+	char *name;
+	char **av;
+	int *statp;
+{
+	char *val;
+	char *key;
+	char keybuf[MAXNAME + 1];
+
+	if (tTd(28, 20) || tTd(38, 20))
+		printf("udb_map_lookup(%s, %s)\n", map->map_mname, name);
+
+	if (bitset(MF_NOFOLDCASE, map->map_mflags))
+	{
+		key = name;
+	}
+	else
+	{
+		int keysize = strlen(name);
+
+		if (keysize > sizeof keybuf - 1)
+			keysize = sizeof keybuf - 1;
+		bcopy(name, keybuf, keysize);
+		keybuf[keysize] = '\0';
+		makelower(keybuf);
+		key = keybuf;
+	}
+	val = udbmatch(key, map->map_file);
+	if (val == NULL)
+		return NULL;
+	if (bitset(MF_MATCHONLY, map->map_mflags))
+		return map_rewrite(map, name, strlen(name), NULL);
+	else
+		return map_rewrite(map, val, strlen(val), av);
+}
+/*
+**  _UDBX_INIT -- parse the UDB specification, opening any valid entries.
+**
+**	Parameters:
+**		e -- the current envelope.
+**
+**	Returns:
+**		EX_TEMPFAIL -- if it appeared it couldn't get hold of a
+**			database due to a host being down or some similar
+**			(recoverable) situation.
+**		EX_OK -- otherwise.
+**
+**	Side Effects:
+**		Fills in the UdbEnts structure from UdbSpec.
+*/
+
+#define MAXUDBOPTS	27
+
+int
+_udbx_init(e)
+	ENVELOPE *e;
+{
+	register char *p;
+	register struct udbent *up;
+
+	if (UdbInitialized)
+		return EX_OK;
+
+# ifdef UDB_DEFAULT_SPEC
+	if (UdbSpec == NULL)
+		UdbSpec = UDB_DEFAULT_SPEC;
+# endif
+
+	p = UdbSpec;
+	up = UdbEnts;
+	while (p != NULL)
+	{
+		char *spec;
+		int nopts;
+		int l;
+# if 0
+		auto int rcode;
+		int nmx;
+		int i;
+		register struct hostent *h;
+		char *mxhosts[MAXMXHOSTS + 1];
+# endif
+		struct option opts[MAXUDBOPTS + 1];
+		extern int _udb_parsespec __P((char *, struct option [], int));
+
+		while (*p == ' ' || *p == '\t' || *p == ',')
+			p++;
+		if (*p == '\0')
+			break;
+		spec = p;
+		p = strchr(p, ',');
+		if (p != NULL)
+			*p++ = '\0';
+
+		/* extract options */
+		nopts = _udb_parsespec(spec, opts, MAXUDBOPTS);
+
+		/*
+		**  Decode database specification.
+		**
+		**	In the sendmail tradition, the leading character
+		**	defines the semantics of the rest of the entry.
+		**
+		**	+hostname --	send a datagram to the udb server
+		**			on host "hostname" asking for the
+		**			home mail server for this user.
+		**	*hostname --	similar to +hostname, except that the
+		**			hostname is searched as an MX record;
+		**			resulting hosts are searched as for
+		**			+mxhostname.  If no MX host is found,
+		**			this is the same as +hostname.
+		**	@hostname --	forward email to the indicated host.
+		**			This should be the last in the list,
+		**			since it always matches the input.
+		**	/dbname	 --	search the named database on the local
+		**			host using the Berkeley db package.
+		**	Hesiod --	search the named database with BIND
+		**			using the MIT Hesiod package.
+		*/
+
+		switch (*spec)
+		{
+#if 0
+		  case '+':	/* search remote database */
+		  case '*':	/* search remote database (expand MX) */
+			if (*spec == '*')
+			{
+#if NAMED_BIND
+				nmx = getmxrr(spec + 1, mxhosts, FALSE, &rcode);
+#else
+				mxhosts[0] = spec + 1;
+				nmx = 1;
+				rcode = 0;
+#endif
+				if (tTd(28, 16))
+				{
+					int i;
+
+					printf("getmxrr(%s): %d", spec + 1, nmx);
+					for (i = 0; i <= nmx; i++)
+						printf(" %s", mxhosts[i]);
+					printf("\n");
+				}
+			}
+			else
+			{
+				nmx = 1;
+				mxhosts[0] = spec + 1;
+			}
+
+			for (i = 0; i < nmx; i++)
+			{
+				h = sm_gethostbyname(mxhosts[i]);
+				if (h == NULL)
+					continue;
+				up->udb_type = UDB_REMOTE;
+				up->udb_addr.sin_family = h->h_addrtype;
+				bcopy(h->h_addr_list[0],
+				      (char *) &up->udb_addr.sin_addr,
+				      INADDRSZ);
+				up->udb_addr.sin_port = UdbPort;
+				up->udb_timeout = UdbTimeout;
+				up++;
+			}
+
+			/* set up a datagram socket */
+			if (UdbSock < 0)
+			{
+				UdbSock = socket(AF_INET, SOCK_DGRAM, 0);
+				(void) fcntl(UdbSock, F_SETFD, 1);
+			}
+			break;
+#endif
+
+		  case '@':	/* forward to remote host */
+			up->udb_type = UDB_FORWARD;
+			up->udb_fwdhost = spec + 1;
+			up++;
+			break;
+
+#ifdef HESIOD
+		  case 'h':	/* use hesiod */
+		  case 'H':
+			if (strcasecmp(spec, "hesiod") != 0)
+				goto badspec;
+			up->udb_type = UDB_HESIOD;
+			up++;
+			break;
+#endif /* HESIOD */
+
+#ifdef NEWDB
+		  case '/':	/* look up remote name */
+			l = strlen(spec);
+			if (l > 3 && strcmp(&spec[l - 3], ".db") == 0)
+			{
+				up->udb_dbname = spec;
+			}
+			else
+			{
+				up->udb_dbname = xalloc(l + 4);
+				strcpy(up->udb_dbname, spec);
+				strcat(up->udb_dbname, ".db");
+			}
+			errno = 0;
+			up->udb_dbp = dbopen(up->udb_dbname, O_RDONLY,
+					     0644, DB_BTREE, NULL);
+			if (up->udb_dbp == NULL)
+			{
+				if (tTd(28, 1))
+				{
+					int saveerrno = errno;
+
+					printf("dbopen(%s): %s\n",
+						up->udb_dbname,
+						errstring(errno));
+					errno = saveerrno;
+				}
+				if (errno != ENOENT && errno != EACCES)
+				{
+					if (LogLevel > 2)
+						sm_syslog(LOG_ERR, e->e_id,
+							"dbopen(%s): %s",
+							up->udb_dbname,
+							errstring(errno));
+					up->udb_type = UDB_EOLIST;
+					if (up->udb_dbname != spec)
+						free(up->udb_dbname);
+					goto tempfail;
+				}
+				if (up->udb_dbname != spec)
+					free(up->udb_dbname);
+				break;
+			}
+			up->udb_type = UDB_DBFETCH;
+			up++;
+			break;
+#endif
+
+		  default:
+badspec:
+			syserr("Unknown UDB spec %s", spec);
+			break;
+		}
+	}
+	up->udb_type = UDB_EOLIST;
+
+	if (tTd(28, 4))
+	{
+		for (up = UdbEnts; up->udb_type != UDB_EOLIST; up++)
+		{
+			switch (up->udb_type)
+			{
+#if DAEMON
+			  case UDB_REMOTE:
+				printf("REMOTE: addr %s, timeo %d\n",
+					anynet_ntoa((SOCKADDR *) &up->udb_addr),
+					up->udb_timeout);
+				break;
+#endif
+
+			  case UDB_DBFETCH:
+#ifdef NEWDB
+				printf("FETCH: file %s\n",
+					up->udb_dbname);
+#else
+				printf("FETCH\n");
+#endif
+				break;
+
+			  case UDB_FORWARD:
+				printf("FORWARD: host %s\n",
+					up->udb_fwdhost);
+				break;
+
+			  case UDB_HESIOD:
+				printf("HESIOD\n");
+				break;
+
+			  default:
+				printf("UNKNOWN\n");
+				break;
+			}
+		}
+	}
+
+	UdbInitialized = TRUE;
+	errno = 0;
+	return EX_OK;
+
+	/*
+	**  On temporary failure, back out anything we've already done
+	*/
+
+  tempfail:
+#ifdef NEWDB
+	for (up = UdbEnts; up->udb_type != UDB_EOLIST; up++)
+	{
+		if (up->udb_type == UDB_DBFETCH)
+		{
+			(*up->udb_dbp->close)(up->udb_dbp);
+		}
+	}
+#endif
+	return EX_TEMPFAIL;
+}
+
+int
+_udb_parsespec(udbspec, opt, maxopts)
+	char *udbspec;
+	struct option opt[];
+	int maxopts;
+{
+	register char *spec;
+	register char *spec_end;
+	register int optnum;
+
+	spec_end = strchr(udbspec, ':');
+	for (optnum = 0; optnum < maxopts && (spec = spec_end) != NULL; optnum++)
+	{
+		register char *p;
+
+		while (isascii(*spec) && isspace(*spec))
+			spec++;
+		spec_end = strchr(spec, ':');
+		if (spec_end != NULL)
+			*spec_end++ = '\0';
+
+		opt[optnum].name = spec;
+		opt[optnum].val = NULL;
+		p = strchr(spec, '=');
+		if (p != NULL)
+			opt[optnum].val = ++p;
+	}
+	return optnum;
+}
+
+#ifdef HESIOD
+
+int
+hes_udb_get(key, info)
+	DBT *key;
+	DBT *info;
+{
+	char *name, *type;
+	char *p, **hp;
+	char kbuf[MAXKEY + 1];
+
+	if (strlen(key->data) >= (SIZE_T) sizeof kbuf)
+		return 0;
+	strcpy(kbuf, key->data);
+	name = kbuf;
+	type = strrchr(name, ':');
+	if (type == NULL)
+		return 1;
+	*type++ = '\0';
+	if (strchr(name, '@') != NULL)
+		return 1;
+
+	if (tTd(28, 1))
+		printf("hes_udb_get(%s, %s)\n", name, type);
+
+	/* make the hesiod query */
+	hp = hes_resolve(name, type);
+	*--type = ':';
+	if (hp == NULL || hp[0] == NULL)
+	{
+		/* network problem or timeout */
+		if (hes_error() == HES_ER_NET)
+			return -1;
+
+		return 1;
+	}
+	else
+	{
+		/*
+		**  If there are multiple matches, just return the
+		**  first one.
+		**
+		**  XXX These should really be returned; for example,
+		**  XXX it is legal for :maildrop to be multi-valued.
+		*/
+
+		info->data = hp[0];
+		info->size = (size_t) strlen(info->data);
+	}
+
+	if (tTd(28, 80))
+		printf("hes_udb_get => %s\n", *hp);
+
+	return 0;
+}
+#endif /* HESIOD */
+
+#else /* not USERDB */
+
+int
+udbexpand(a, sendq, aliaslevel, e)
+	ADDRESS *a;
+	ADDRESS **sendq;
+	int aliaslevel;
+	ENVELOPE *e;
+{
+	return EX_OK;
+}
+
+#endif /* USERDB */
diff --git a/src/useful.h b/src/useful.h
new file mode 100644
index 0000000..59182fe
--- /dev/null
+++ b/src/useful.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)useful.h	8.7 (Berkeley) 5/29/97
+ */
+
+# include <sys/types.h>
+
+/* support for bool type */
+typedef int	bool;
+#ifndef TRUE
+# define TRUE	1
+# define FALSE	0
+#endif
+
+# ifndef NULL
+# define NULL	0
+# endif /* NULL */
+
+/* bit hacking */
+# define bitset(bit, word)	(((word) & (bit)) != 0)
+
+/* some simple functions */
+# ifndef max
+# define max(a, b)	((a) > (b) ? (a) : (b))
+# define min(a, b)	((a) < (b) ? (a) : (b))
+# endif
+
+/* assertions */
+# ifndef NASSERT
+# define ASSERT(expr, msg, parm)\
+	if (!(expr))\
+	{\
+		fprintf(stderr, "assertion botch: %s:%d: ", __FILE__, __LINE__);\
+		fprintf(stderr, msg, parm);\
+	}
+# else /* NASSERT */
+# define ASSERT(expr, msg, parm)
+# endif /* NASSERT */
+
+/* sccs id's */
+# ifndef lint
+#  ifdef __STDC__
+#   define SCCSID(arg)	static char SccsId[] = #arg;
+#  else
+#   define SCCSID(arg)	static char SccsId[] = "arg";
+#  endif
+# else
+#  define SCCSID(arg)
+# endif
diff --git a/src/usersmtp.c b/src/usersmtp.c
new file mode 100644
index 0000000..b088d60
--- /dev/null
+++ b/src/usersmtp.c
@@ -0,0 +1,1211 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+# include "sendmail.h"
+
+#ifndef lint
+#if SMTP
+static char sccsid[] = "@(#)usersmtp.c	8.88 (Berkeley) 10/20/97 (with SMTP)";
+#else
+static char sccsid[] = "@(#)usersmtp.c	8.88 (Berkeley) 10/20/97 (without SMTP)";
+#endif
+#endif /* not lint */
+
+# include <sysexits.h>
+# include <errno.h>
+
+# if SMTP
+
+/*
+**  USERSMTP -- run SMTP protocol from the user end.
+**
+**	This protocol is described in RFC821.
+*/
+
+#define REPLYTYPE(r)	((r) / 100)		/* first digit of reply code */
+#define REPLYCLASS(r)	(((r) / 10) % 10)	/* second digit of reply code */
+#define SMTPCLOSING	421			/* "Service Shutting Down" */
+
+char	SmtpMsgBuffer[MAXLINE];		/* buffer for commands */
+char	SmtpReplyBuffer[MAXLINE];	/* buffer for replies */
+char	SmtpError[MAXLINE] = "";	/* save failure error messages */
+bool	SmtpNeedIntro;			/* need "while talking" in transcript */
+
+extern void	smtpmessage __P((char *f, MAILER *m, MCI *mci, ...));
+extern int	reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)()));
+/*
+**  SMTPINIT -- initialize SMTP.
+**
+**	Opens the connection and sends the initial protocol.
+**
+**	Parameters:
+**		m -- mailer to create connection to.
+**		pvp -- pointer to parameter vector to pass to
+**			the mailer.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		creates connection and sends initial protocol.
+*/
+
+void
+smtpinit(m, mci, e)
+	MAILER *m;
+	register MCI *mci;
+	ENVELOPE *e;
+{
+	register int r;
+	register char *p;
+	extern void esmtp_check();
+	extern void helo_options();
+
+	if (tTd(18, 1))
+	{
+		printf("smtpinit ");
+		mci_dump(mci, FALSE);
+	}
+
+	/*
+	**  Open the connection to the mailer.
+	*/
+
+	SmtpError[0] = '\0';
+	CurHostName = mci->mci_host;		/* XXX UGLY XXX */
+	if (CurHostName == NULL)
+		CurHostName = MyHostName;
+	SmtpNeedIntro = TRUE;
+	switch (mci->mci_state)
+	{
+	  case MCIS_ACTIVE:
+		/* need to clear old information */
+		smtprset(m, mci, e);
+		/* fall through */
+
+	  case MCIS_OPEN:
+		return;
+
+	  case MCIS_ERROR:
+	  case MCIS_SSD:
+		/* shouldn't happen */
+		smtpquit(m, mci, e);
+		/* fall through */
+
+	  case MCIS_CLOSED:
+		syserr("451 smtpinit: state CLOSED");
+		return;
+
+	  case MCIS_OPENING:
+		break;
+	}
+
+	mci->mci_state = MCIS_OPENING;
+
+	/*
+	**  Get the greeting message.
+	**	This should appear spontaneously.  Give it five minutes to
+	**	happen.
+	*/
+
+	SmtpPhase = mci->mci_phase = "client greeting";
+	setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase);
+	r = reply(m, mci, e, TimeOuts.to_initial, esmtp_check);
+	if (r < 0)
+		goto tempfail1;
+	if (REPLYTYPE(r) == 4)
+		goto tempfail2;
+	if (REPLYTYPE(r) != 2)
+		goto unavailable;
+
+	/*
+	**  Send the HELO command.
+	**	My mother taught me to always introduce myself.
+	*/
+
+#if _FFR_LMTP
+	if (bitnset(M_ESMTP, m->m_flags) || bitnset(M_LMTP, m->m_flags))
+#else
+	if (bitnset(M_ESMTP, m->m_flags))
+#endif
+		mci->mci_flags |= MCIF_ESMTP;
+
+tryhelo:
+#if _FFR_LMTP
+	if (bitnset(M_LMTP, m->m_flags))
+	{
+		smtpmessage("LHLO %s", m, mci, MyHostName);
+		SmtpPhase = mci->mci_phase = "client LHLO";
+	}
+	else if (bitset(MCIF_ESMTP, mci->mci_flags))
+#else
+	if (bitset(MCIF_ESMTP, mci->mci_flags))
+#endif
+	{
+		smtpmessage("EHLO %s", m, mci, MyHostName);
+		SmtpPhase = mci->mci_phase = "client EHLO";
+	}
+	else
+	{
+		smtpmessage("HELO %s", m, mci, MyHostName);
+		SmtpPhase = mci->mci_phase = "client HELO";
+	}
+	setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase);
+	r = reply(m, mci, e, TimeOuts.to_helo, helo_options);
+	if (r < 0)
+		goto tempfail1;
+	else if (REPLYTYPE(r) == 5)
+	{
+#if _FFR_LMTP
+		if (bitset(MCIF_ESMTP, mci->mci_flags) &&
+		    !bitnset(M_LMTP, m->m_flags))
+#else
+		if (bitset(MCIF_ESMTP, mci->mci_flags))
+#endif
+		{
+			/* try old SMTP instead */
+			mci->mci_flags &= ~MCIF_ESMTP;
+			goto tryhelo;
+		}
+		goto unavailable;
+	}
+	else if (REPLYTYPE(r) != 2)
+		goto tempfail2;
+
+	/*
+	**  Check to see if we actually ended up talking to ourself.
+	**  This means we didn't know about an alias or MX, or we managed
+	**  to connect to an echo server.
+	*/
+
+	p = strchr(&SmtpReplyBuffer[4], ' ');
+	if (p != NULL)
+		*p = '\0';
+	if (!bitnset(M_NOLOOPCHECK, m->m_flags) &&
+#if _FFR_LMTP
+	    !bitnset(M_LMTP, m->m_flags) &&
+#endif
+	    strcasecmp(&SmtpReplyBuffer[4], MyHostName) == 0)
+	{
+		syserr("553 %s config error: mail loops back to me (MX problem?)",
+			mci->mci_host);
+		mci_setstat(mci, EX_CONFIG, NULL, NULL);
+		mci->mci_errno = 0;
+		smtpquit(m, mci, e);
+		return;
+	}
+
+	/*
+	**  If this is expected to be another sendmail, send some internal
+	**  commands.
+	*/
+
+	if (bitnset(M_INTERNAL, m->m_flags))
+	{
+		/* tell it to be verbose */
+		smtpmessage("VERB", m, mci);
+		r = reply(m, mci, e, TimeOuts.to_miscshort, NULL);
+		if (r < 0)
+			goto tempfail1;
+	}
+
+	if (mci->mci_state != MCIS_CLOSED)
+	{
+		mci->mci_state = MCIS_OPEN;
+		return;
+	}
+
+	/* got a 421 error code during startup */
+
+  tempfail1:
+	if (mci->mci_errno == 0)
+		mci->mci_errno = errno;
+	mci_setstat(mci, EX_TEMPFAIL, "4.4.2", NULL);
+	if (mci->mci_state != MCIS_CLOSED)
+		smtpquit(m, mci, e);
+	return;
+
+  tempfail2:
+	if (mci->mci_errno == 0)
+		mci->mci_errno = errno;
+	/* XXX should use code from other end iff ENHANCEDSTATUSCODES */
+	mci_setstat(mci, EX_TEMPFAIL, "4.5.0", SmtpReplyBuffer);
+	if (mci->mci_state != MCIS_CLOSED)
+		smtpquit(m, mci, e);
+	return;
+
+  unavailable:
+	mci->mci_errno = errno;
+	mci_setstat(mci, EX_UNAVAILABLE, "5.5.0", SmtpReplyBuffer);
+	smtpquit(m, mci, e);
+	return;
+}
+/*
+**  ESMTP_CHECK -- check to see if this implementation likes ESMTP protocol
+**
+**	Parameters:
+**		line -- the response line.
+**		firstline -- set if this is the first line of the reply.
+**		m -- the mailer.
+**		mci -- the mailer connection info.
+**		e -- the envelope.
+**
+**	Returns:
+**		none.
+*/
+
+void
+esmtp_check(line, firstline, m, mci, e)
+	char *line;
+	bool firstline;
+	MAILER *m;
+	register MCI *mci;
+	ENVELOPE *e;
+{
+	if (strstr(line, "ESMTP") != NULL)
+		mci->mci_flags |= MCIF_ESMTP;
+	if (strstr(line, "8BIT-OK") != NULL)
+		mci->mci_flags |= MCIF_8BITOK;
+}
+/*
+**  HELO_OPTIONS -- process the options on a HELO line.
+**
+**	Parameters:
+**		line -- the response line.
+**		firstline -- set if this is the first line of the reply.
+**		m -- the mailer.
+**		mci -- the mailer connection info.
+**		e -- the envelope.
+**
+**	Returns:
+**		none.
+*/
+
+void
+helo_options(line, firstline, m, mci, e)
+	char *line;
+	bool firstline;
+	MAILER *m;
+	register MCI *mci;
+	ENVELOPE *e;
+{
+	register char *p;
+
+	if (firstline)
+		return;
+
+	if (strlen(line) < (SIZE_T) 5)
+		return;
+	line += 4;
+	p = strchr(line, ' ');
+	if (p != NULL)
+		*p++ = '\0';
+	if (strcasecmp(line, "size") == 0)
+	{
+		mci->mci_flags |= MCIF_SIZE;
+		if (p != NULL)
+			mci->mci_maxsize = atol(p);
+	}
+	else if (strcasecmp(line, "8bitmime") == 0)
+	{
+		mci->mci_flags |= MCIF_8BITMIME;
+		mci->mci_flags &= ~MCIF_7BIT;
+	}
+	else if (strcasecmp(line, "expn") == 0)
+		mci->mci_flags |= MCIF_EXPN;
+	else if (strcasecmp(line, "dsn") == 0)
+		mci->mci_flags |= MCIF_DSN;
+}
+/*
+**  SMTPMAILFROM -- send MAIL command
+**
+**	Parameters:
+**		m -- the mailer.
+**		mci -- the mailer connection structure.
+**		e -- the envelope (including the sender to specify).
+*/
+
+int
+smtpmailfrom(m, mci, e)
+	MAILER *m;
+	MCI *mci;
+	ENVELOPE *e;
+{
+	int r;
+	int l;
+	char *bufp;
+	char *bodytype;
+	char buf[MAXNAME + 1];
+	char optbuf[MAXLINE];
+
+	if (tTd(18, 2))
+		printf("smtpmailfrom: CurHost=%s\n", CurHostName);
+
+	/* set up appropriate options to include */
+	if (bitset(MCIF_SIZE, mci->mci_flags) && e->e_msgsize > 0)
+		snprintf(optbuf, sizeof optbuf, " SIZE=%ld", e->e_msgsize);
+	else
+		strcpy(optbuf, "");
+	l = sizeof optbuf - strlen(optbuf) - 1;
+
+	bodytype = e->e_bodytype;
+	if (bitset(MCIF_8BITMIME, mci->mci_flags))
+	{
+		if (bodytype == NULL &&
+		    bitset(MM_MIME8BIT, MimeMode) &&
+		    bitset(EF_HAS8BIT, e->e_flags) &&
+		    !bitset(EF_DONT_MIME, e->e_flags) &&
+		    !bitnset(M_8BITS, m->m_flags))
+			bodytype = "8BITMIME";
+		if (bodytype != NULL && strlen(bodytype) + 7 < l)
+		{
+			strcat(optbuf, " BODY=");
+			strcat(optbuf, bodytype);
+			l -= strlen(optbuf);
+		}
+	}
+	else if (bitnset(M_8BITS, m->m_flags) ||
+		 !bitset(EF_HAS8BIT, e->e_flags) ||
+		 bitset(MCIF_8BITOK, mci->mci_flags))
+	{
+		/* just pass it through */
+	}
+#if MIME8TO7
+	else if (bitset(MM_CVTMIME, MimeMode) &&
+		 !bitset(EF_DONT_MIME, e->e_flags) &&
+		 (!bitset(MM_PASS8BIT, MimeMode) ||
+		  bitset(EF_IS_MIME, e->e_flags)))
+	{
+		/* must convert from 8bit MIME format to 7bit encoded */
+		mci->mci_flags |= MCIF_CVT8TO7;
+	}
+#endif
+	else if (!bitset(MM_PASS8BIT, MimeMode))
+	{
+		/* cannot just send a 8-bit version */
+		extern char MsgBuf[];
+
+		usrerr("%s does not support 8BITMIME", mci->mci_host);
+		mci_setstat(mci, EX_NOTSTICKY, "5.6.3", MsgBuf);
+		return EX_DATAERR;
+	}
+
+	if (bitset(MCIF_DSN, mci->mci_flags))
+	{
+		if (e->e_envid != NULL && strlen(e->e_envid) < (SIZE_T) (l - 7))
+		{
+			strcat(optbuf, " ENVID=");
+			strcat(optbuf, e->e_envid);
+			l -= strlen(optbuf);
+		}
+
+		/* RET= parameter */
+		if (bitset(EF_RET_PARAM, e->e_flags) && l >= 9)
+		{
+			strcat(optbuf, " RET=");
+			if (bitset(EF_NO_BODY_RETN, e->e_flags))
+				strcat(optbuf, "HDRS");
+			else
+				strcat(optbuf, "FULL");
+			l -= 9;
+		}
+	}
+
+	/*
+	**  Send the MAIL command.
+	**	Designates the sender.
+	*/
+
+	mci->mci_state = MCIS_ACTIVE;
+
+	if (bitset(EF_RESPONSE, e->e_flags) &&
+	    !bitnset(M_NO_NULL_FROM, m->m_flags))
+		(void) strcpy(buf, "");
+	else
+		expand("\201g", buf, sizeof buf, e);
+	if (buf[0] == '<')
+	{
+		/* strip off <angle brackets> (put back on below) */
+		bufp = &buf[strlen(buf) - 1];
+		if (*bufp == '>')
+			*bufp = '\0';
+		bufp = &buf[1];
+	}
+	else
+		bufp = buf;
+	if (bitnset(M_LOCALMAILER, e->e_from.q_mailer->m_flags) ||
+	    !bitnset(M_FROMPATH, m->m_flags))
+	{
+		smtpmessage("MAIL From:<%s>%s", m, mci, bufp, optbuf);
+	}
+	else
+	{
+		smtpmessage("MAIL From:<@%s%c%s>%s", m, mci, MyHostName,
+			*bufp == '@' ? ',' : ':', bufp, optbuf);
+	}
+	SmtpPhase = mci->mci_phase = "client MAIL";
+	setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase);
+	r = reply(m, mci, e, TimeOuts.to_mail, NULL);
+	if (r < 0)
+	{
+		/* communications failure */
+		mci->mci_errno = errno;
+		mci_setstat(mci, EX_TEMPFAIL, "4.4.2", NULL);
+		smtpquit(m, mci, e);
+		return EX_TEMPFAIL;
+	}
+	else if (r == 421)
+	{
+		/* service shutting down */
+		mci_setstat(mci, EX_TEMPFAIL, "4.5.0", SmtpReplyBuffer);
+		smtpquit(m, mci, e);
+		return EX_TEMPFAIL;
+	}
+	else if (r == 452 && bitset(MCIF_SIZE, mci->mci_flags) &&
+		 e->e_msgsize > 0)
+	{
+		mci_setstat(mci, EX_NOTSTICKY, smtptodsn(r), SmtpReplyBuffer);
+		return EX_TEMPFAIL;
+	}
+	else if (REPLYTYPE(r) == 4)
+	{
+		mci_setstat(mci, EX_TEMPFAIL, smtptodsn(r), SmtpReplyBuffer);
+		return EX_TEMPFAIL;
+	}
+	else if (REPLYTYPE(r) == 2)
+	{
+		return EX_OK;
+	}
+	else if (r == 501)
+	{
+		/* syntax error in arguments */
+		mci_setstat(mci, EX_NOTSTICKY, "5.5.2", SmtpReplyBuffer);
+		return EX_DATAERR;
+	}
+	else if (r == 553)
+	{
+		/* mailbox name not allowed */
+		mci_setstat(mci, EX_NOTSTICKY, "5.1.3", SmtpReplyBuffer);
+		return EX_DATAERR;
+	}
+	else if (r == 552)
+	{
+		/* exceeded storage allocation */
+		mci_setstat(mci, EX_NOTSTICKY, "5.2.2", SmtpReplyBuffer);
+		if (bitset(MCIF_SIZE, mci->mci_flags))
+			e->e_flags |= EF_NO_BODY_RETN;
+		return EX_UNAVAILABLE;
+	}
+	else if (REPLYTYPE(r) == 5)
+	{
+		/* unknown error */
+		mci_setstat(mci, EX_NOTSTICKY, "5.0.0", SmtpReplyBuffer);
+		return EX_UNAVAILABLE;
+	}
+
+	if (LogLevel > 1)
+	{
+		sm_syslog(LOG_CRIT, e->e_id,
+			"%.100s: SMTP MAIL protocol error: %s",
+			mci->mci_host,
+			shortenstring(SmtpReplyBuffer, 403));
+	}
+
+	/* protocol error -- close up */
+	mci_setstat(mci, EX_PROTOCOL, "5.5.1", SmtpReplyBuffer);
+	smtpquit(m, mci, e);
+	return EX_PROTOCOL;
+}
+/*
+**  SMTPRCPT -- designate recipient.
+**
+**	Parameters:
+**		to -- address of recipient.
+**		m -- the mailer we are sending to.
+**		mci -- the connection info for this transaction.
+**		e -- the envelope for this transaction.
+**
+**	Returns:
+**		exit status corresponding to recipient status.
+**
+**	Side Effects:
+**		Sends the mail via SMTP.
+*/
+
+int
+smtprcpt(to, m, mci, e)
+	ADDRESS *to;
+	register MAILER *m;
+	MCI *mci;
+	ENVELOPE *e;
+{
+	register int r;
+	int l;
+	char optbuf[MAXLINE];
+
+	strcpy(optbuf, "");
+	l = sizeof optbuf - 1;
+	if (bitset(MCIF_DSN, mci->mci_flags))
+	{
+		/* NOTIFY= parameter */
+		if (bitset(QHASNOTIFY, to->q_flags) &&
+		    bitset(QPRIMARY, to->q_flags) &&
+		    !bitnset(M_LOCALMAILER, m->m_flags))
+		{
+			bool firstone = TRUE;
+
+			strcat(optbuf, " NOTIFY=");
+			if (bitset(QPINGONSUCCESS, to->q_flags))
+			{
+				strcat(optbuf, "SUCCESS");
+				firstone = FALSE;
+			}
+			if (bitset(QPINGONFAILURE, to->q_flags))
+			{
+				if (!firstone)
+					strcat(optbuf, ",");
+				strcat(optbuf, "FAILURE");
+				firstone = FALSE;
+			}
+			if (bitset(QPINGONDELAY, to->q_flags))
+			{
+				if (!firstone)
+					strcat(optbuf, ",");
+				strcat(optbuf, "DELAY");
+				firstone = FALSE;
+			}
+			if (firstone)
+				strcat(optbuf, "NEVER");
+			l -= strlen(optbuf);
+		}
+
+		/* ORCPT= parameter */
+		if (to->q_orcpt != NULL && strlen(to->q_orcpt) + 7 < l)
+		{
+			strcat(optbuf, " ORCPT=");
+			strcat(optbuf, to->q_orcpt);
+			l -= strlen(optbuf);
+		}
+	}
+
+	smtpmessage("RCPT To:<%s>%s", m, mci, to->q_user, optbuf);
+
+	SmtpPhase = mci->mci_phase = "client RCPT";
+	setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase);
+	r = reply(m, mci, e, TimeOuts.to_rcpt, NULL);
+	to->q_rstatus = newstr(SmtpReplyBuffer);
+	to->q_status = smtptodsn(r);
+	to->q_statmta = mci->mci_host;
+	if (r < 0 || REPLYTYPE(r) == 4)
+		return EX_TEMPFAIL;
+	else if (REPLYTYPE(r) == 2)
+		return EX_OK;
+	else if (r == 550)
+	{
+		to->q_status = "5.1.1";
+		return EX_NOUSER;
+	}
+	else if (r == 551)
+	{
+		to->q_status = "5.1.6";
+		return EX_NOUSER;
+	}
+	else if (r == 553)
+	{
+		to->q_status = "5.1.3";
+		return EX_NOUSER;
+	}
+	else if (REPLYTYPE(r) == 5)
+	{
+		return EX_UNAVAILABLE;
+	}
+
+	if (LogLevel > 1)
+	{
+		sm_syslog(LOG_CRIT, e->e_id,
+			"%.100s: SMTP RCPT protocol error: %s",
+			mci->mci_host,
+			shortenstring(SmtpReplyBuffer, 403));
+	}
+
+	mci_setstat(mci, EX_PROTOCOL, "5.5.1", SmtpReplyBuffer);
+	return EX_PROTOCOL;
+}
+/*
+**  SMTPDATA -- send the data and clean up the transaction.
+**
+**	Parameters:
+**		m -- mailer being sent to.
+**		mci -- the mailer connection information.
+**		e -- the envelope for this message.
+**
+**	Returns:
+**		exit status corresponding to DATA command.
+**
+**	Side Effects:
+**		none.
+*/
+
+static jmp_buf	CtxDataTimeout;
+static void	datatimeout();
+
+int
+smtpdata(m, mci, e)
+	MAILER *m;
+	register MCI *mci;
+	register ENVELOPE *e;
+{
+	register int r;
+	register EVENT *ev;
+	int rstat;
+	int xstat;
+	time_t timeout;
+
+	/*
+	**  Send the data.
+	**	First send the command and check that it is ok.
+	**	Then send the data.
+	**	Follow it up with a dot to terminate.
+	**	Finally get the results of the transaction.
+	*/
+
+	/* send the command and check ok to proceed */
+	smtpmessage("DATA", m, mci);
+	SmtpPhase = mci->mci_phase = "client DATA 354";
+	setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase);
+	r = reply(m, mci, e, TimeOuts.to_datainit, NULL);
+	if (r < 0 || REPLYTYPE(r) == 4)
+	{
+		smtpquit(m, mci, e);
+		return EX_TEMPFAIL;
+	}
+	else if (REPLYTYPE(r) == 5)
+	{
+		smtprset(m, mci, e);
+		return EX_UNAVAILABLE;
+	}
+	else if (r != 354)
+	{
+		if (LogLevel > 1)
+		{
+			sm_syslog(LOG_CRIT, e->e_id,
+				"%.100s: SMTP DATA-1 protocol error: %s",
+				mci->mci_host,
+				shortenstring(SmtpReplyBuffer, 403));
+		}
+		smtprset(m, mci, e);
+		mci_setstat(mci, EX_PROTOCOL, "5.5.1", SmtpReplyBuffer);
+		return (EX_PROTOCOL);
+	}
+
+	/*
+	**  Set timeout around data writes.  Make it at least large
+	**  enough for DNS timeouts on all recipients plus some fudge
+	**  factor.  The main thing is that it should not be infinite.
+	*/
+
+	if (setjmp(CtxDataTimeout) != 0)
+	{
+		mci->mci_errno = errno;
+		mci->mci_state = MCIS_ERROR;
+		mci_setstat(mci, EX_TEMPFAIL, "4.4.2", NULL);
+		syserr("451 timeout writing message to %s", mci->mci_host);
+		smtpquit(m, mci, e);
+		return EX_TEMPFAIL;
+	}
+
+	timeout = e->e_msgsize / 16;
+	if (timeout < (time_t) 600)
+		timeout = (time_t) 600;
+	timeout += e->e_nrcpts * 300;
+	ev = setevent(timeout, datatimeout, 0);
+
+	/*
+	**  Output the actual message.
+	*/
+
+	(*e->e_puthdr)(mci, e->e_header, e);
+	(*e->e_putbody)(mci, e, NULL);
+
+	/*
+	**  Cleanup after sending message.
+	*/
+
+	clrevent(ev);
+
+	if (ferror(mci->mci_out))
+	{
+		/* error during processing -- don't send the dot */
+		mci->mci_errno = EIO;
+		mci->mci_state = MCIS_ERROR;
+		mci_setstat(mci, EX_IOERR, "4.4.2", NULL);
+		smtpquit(m, mci, e);
+		return EX_IOERR;
+	}
+
+	/* terminate the message */
+	fprintf(mci->mci_out, ".%s", m->m_eol);
+	if (TrafficLogFile != NULL)
+		fprintf(TrafficLogFile, "%05d >>> .\n", (int) getpid());
+	if (Verbose)
+		nmessage(">>> .");
+
+	/* check for the results of the transaction */
+	SmtpPhase = mci->mci_phase = "client DATA status";
+	setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase);
+#if _FFR_LMTP
+	if (bitnset(M_LMTP, m->m_flags))
+		return EX_OK;
+#endif
+	r = reply(m, mci, e, TimeOuts.to_datafinal, NULL);
+	if (r < 0)
+	{
+		smtpquit(m, mci, e);
+		return EX_TEMPFAIL;
+	}
+	mci->mci_state = MCIS_OPEN;
+	xstat = EX_NOTSTICKY;
+	if (r == 452)
+		rstat = EX_TEMPFAIL;
+	else if (REPLYTYPE(r) == 4)
+		rstat = xstat = EX_TEMPFAIL;
+	else if (REPLYCLASS(r) != 5)
+		rstat = xstat = EX_PROTOCOL;
+	else if (REPLYTYPE(r) == 2)
+		rstat = xstat = EX_OK;
+	else if (REPLYTYPE(r) == 5)
+		rstat = EX_UNAVAILABLE;
+	else
+		rstat = EX_PROTOCOL;
+	mci_setstat(mci, xstat, smtptodsn(r), SmtpReplyBuffer);
+	if (e->e_statmsg != NULL)
+		free(e->e_statmsg);
+	e->e_statmsg = newstr(&SmtpReplyBuffer[4]);
+	if (rstat != EX_PROTOCOL)
+		return rstat;
+	if (LogLevel > 1)
+	{
+		sm_syslog(LOG_CRIT, e->e_id,
+			"%.100s: SMTP DATA-2 protocol error: %s",
+			mci->mci_host,
+			shortenstring(SmtpReplyBuffer, 403));
+	}
+	return rstat;
+}
+
+
+static void
+datatimeout()
+{
+	longjmp(CtxDataTimeout, 1);
+}
+/*
+**  SMTPGETSTAT -- get status code from DATA in LMTP
+**
+**	Parameters:
+**		m -- the mailer to which we are sending the message.
+**		mci -- the mailer connection structure.
+**		e -- the current envelope.
+**
+**	Returns:
+**		The exit status corresponding to the reply code.
+*/
+
+#if _FFR_LMTP
+
+int
+smtpgetstat(m, mci, e)
+	MAILER *m;
+	MCI *mci;
+	ENVELOPE *e;
+{
+	int r;
+	int stat;
+
+	/* check for the results of the transaction */
+	r = reply(m, mci, e, TimeOuts.to_datafinal, NULL);
+	if (r < 0)
+	{
+		smtpquit(m, mci, e);
+		return EX_TEMPFAIL;
+	}
+	if (e->e_statmsg != NULL)
+		free(e->e_statmsg);
+	e->e_statmsg = newstr(&SmtpReplyBuffer[4]);
+	if (REPLYTYPE(r) == 4)
+		stat = EX_TEMPFAIL;
+	else if (REPLYCLASS(r) != 5)
+		stat = EX_PROTOCOL;
+	else if (REPLYTYPE(r) == 2)
+		stat = EX_OK;
+	else if (REPLYTYPE(r) == 5)
+		stat = EX_UNAVAILABLE;
+	mci_setstat(mci, stat, smtptodsn(r), SmtpReplyBuffer);
+	if (LogLevel > 1 && stat == EX_PROTOCOL)
+	{
+		sm_syslog(LOG_CRIT, e->e_id,
+			"%.100s: SMTP DATA-3 protocol error: %s",
+			mci->mci_host,
+			shortenstring(SmtpReplyBuffer, 403));
+	}
+	return stat;
+}
+
+#endif
+/*
+**  SMTPQUIT -- close the SMTP connection.
+**
+**	Parameters:
+**		m -- a pointer to the mailer.
+**		mci -- the mailer connection information.
+**		e -- the current envelope.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		sends the final protocol and closes the connection.
+*/
+
+void
+smtpquit(m, mci, e)
+	register MAILER *m;
+	register MCI *mci;
+	ENVELOPE *e;
+{
+	bool oldSuprErrs = SuprErrs;
+
+	/*
+	**	Suppress errors here -- we may be processing a different
+	**	job when we do the quit connection, and we don't want the 
+	**	new job to be penalized for something that isn't it's
+	**	problem.
+	*/
+
+	SuprErrs = TRUE;
+
+	/* send the quit message if we haven't gotten I/O error */
+	if (mci->mci_state != MCIS_ERROR)
+	{
+		SmtpPhase = "client QUIT";
+		smtpmessage("QUIT", m, mci);
+		(void) reply(m, mci, e, TimeOuts.to_quit, NULL);
+		SuprErrs = oldSuprErrs;
+		if (mci->mci_state == MCIS_CLOSED)
+			return;
+	}
+
+	/* now actually close the connection and pick up the zombie */
+	(void) endmailer(mci, e, NULL);
+
+	SuprErrs = oldSuprErrs;
+}
+/*
+**  SMTPRSET -- send a RSET (reset) command
+*/
+
+void
+smtprset(m, mci, e)
+	register MAILER *m;
+	register MCI *mci;
+	ENVELOPE *e;
+{
+	int r;
+
+	SmtpPhase = "client RSET";
+	smtpmessage("RSET", m, mci);
+	r = reply(m, mci, e, TimeOuts.to_rset, NULL);
+	if (r < 0)
+		mci->mci_state = MCIS_ERROR;
+	else if (REPLYTYPE(r) == 2)
+	{
+		mci->mci_state = MCIS_OPEN;
+		return;
+	}
+	smtpquit(m, mci, e);
+}
+/*
+**  SMTPPROBE -- check the connection state
+*/
+
+int
+smtpprobe(mci)
+	register MCI *mci;
+{
+	int r;
+	MAILER *m = mci->mci_mailer;
+	extern ENVELOPE BlankEnvelope;
+	ENVELOPE *e = &BlankEnvelope;
+
+	SmtpPhase = "client probe";
+	smtpmessage("RSET", m, mci);
+	r = reply(m, mci, e, TimeOuts.to_miscshort, NULL);
+	if (r < 0 || REPLYTYPE(r) != 2)
+		smtpquit(m, mci, e);
+	return r;
+}
+/*
+**  REPLY -- read arpanet reply
+**
+**	Parameters:
+**		m -- the mailer we are reading the reply from.
+**		mci -- the mailer connection info structure.
+**		e -- the current envelope.
+**		timeout -- the timeout for reads.
+**		pfunc -- processing function called on each line of response.
+**			If null, no special processing is done.
+**
+**	Returns:
+**		reply code it reads.
+**
+**	Side Effects:
+**		flushes the mail file.
+*/
+
+int
+reply(m, mci, e, timeout, pfunc)
+	MAILER *m;
+	MCI *mci;
+	ENVELOPE *e;
+	time_t timeout;
+	void (*pfunc)();
+{
+	register char *bufp;
+	register int r;
+	bool firstline = TRUE;
+	char junkbuf[MAXLINE];
+
+	if (mci->mci_out != NULL)
+		(void) fflush(mci->mci_out);
+
+	if (tTd(18, 1))
+		printf("reply\n");
+
+	/*
+	**  Read the input line, being careful not to hang.
+	*/
+
+	bufp = SmtpReplyBuffer;
+	for (;;)
+	{
+		register char *p;
+		extern time_t curtime();
+
+		/* actually do the read */
+		if (e->e_xfp != NULL)
+			(void) fflush(e->e_xfp);	/* for debugging */
+
+		/* if we are in the process of closing just give the code */
+		if (mci->mci_state == MCIS_CLOSED)
+			return (SMTPCLOSING);
+
+		if (mci->mci_out != NULL)
+			fflush(mci->mci_out);
+
+		/* get the line from the other side */
+		p = sfgets(bufp, MAXLINE, mci->mci_in, timeout, SmtpPhase);
+		mci->mci_lastuse = curtime();
+
+		if (p == NULL)
+		{
+			bool oldholderrs;
+			extern char MsgBuf[];
+
+			/* if the remote end closed early, fake an error */
+			if (errno == 0)
+# ifdef ECONNRESET
+				errno = ECONNRESET;
+# else /* ECONNRESET */
+				errno = EPIPE;
+# endif /* ECONNRESET */
+
+			mci->mci_errno = errno;
+			oldholderrs = HoldErrs;
+			HoldErrs = TRUE;
+			usrerr("451 reply: read error from %s", mci->mci_host);
+			mci_setstat(mci, EX_TEMPFAIL, "4.4.2", MsgBuf);
+
+			/* if debugging, pause so we can see state */
+			if (tTd(18, 100))
+				pause();
+			mci->mci_state = MCIS_ERROR;
+			smtpquit(m, mci, e);
+#if XDEBUG
+			{
+				char wbuf[MAXLINE];
+				char *p = wbuf;
+				int wbufleft = sizeof wbuf;
+
+				if (e->e_to != NULL)
+				{
+					int plen;
+
+					snprintf(p, wbufleft, "%s... ",
+						shortenstring(e->e_to, 203));
+					plen = strlen(p);
+					p += plen;
+					wbufleft -= plen;
+				}
+				snprintf(p, wbufleft, "reply(%.100s) during %s",
+					mci->mci_host, SmtpPhase);
+				checkfd012(wbuf);
+			}
+#endif
+			HoldErrs = oldholderrs;
+			return (-1);
+		}
+		fixcrlf(bufp, TRUE);
+
+		/* EHLO failure is not a real error */
+		if (e->e_xfp != NULL && (bufp[0] == '4' ||
+		    (bufp[0] == '5' && strncmp(SmtpMsgBuffer, "EHLO", 4) != 0)))
+		{
+			/* serious error -- log the previous command */
+			if (SmtpNeedIntro)
+			{
+				/* inform user who we are chatting with */
+				fprintf(CurEnv->e_xfp,
+					"... while talking to %s:\n",
+					CurHostName);
+				SmtpNeedIntro = FALSE;
+			}
+			if (SmtpMsgBuffer[0] != '\0')
+				fprintf(e->e_xfp, ">>> %s\n", SmtpMsgBuffer);
+			SmtpMsgBuffer[0] = '\0';
+
+			/* now log the message as from the other side */
+			fprintf(e->e_xfp, "<<< %s\n", bufp);
+		}
+
+		/* display the input for verbose mode */
+		if (Verbose)
+			nmessage("050 %s", bufp);
+
+		/* ignore improperly formated input */
+		if (!(isascii(bufp[0]) && isdigit(bufp[0])) ||
+		    !(isascii(bufp[1]) && isdigit(bufp[1])) ||
+		    !(isascii(bufp[2]) && isdigit(bufp[2])) ||
+		    !(bufp[3] == ' ' || bufp[3] == '-'))
+			continue;
+
+		/* process the line */
+		if (pfunc != NULL)
+			(*pfunc)(bufp, firstline, m, mci, e);
+
+		firstline = FALSE;
+
+		/* decode the reply code */
+		r = atoi(bufp);
+
+		/* extra semantics: 0xx codes are "informational" */
+		if (r < 100)
+			continue;
+
+		/* if no continuation lines, return this line */
+		if (bufp[3] != '-')
+			break;
+
+		/* first line of real reply -- ignore rest */
+		bufp = junkbuf;
+	}
+
+	/*
+	**  Now look at SmtpReplyBuffer -- only care about the first
+	**  line of the response from here on out.
+	*/
+
+	/* save temporary failure messages for posterity */
+	if (SmtpReplyBuffer[0] == '4' && SmtpError[0] == '\0')
+		snprintf(SmtpError, sizeof SmtpError, "%s", SmtpReplyBuffer);
+
+	/* reply code 421 is "Service Shutting Down" */
+	if (r == SMTPCLOSING && mci->mci_state != MCIS_SSD)
+	{
+		/* send the quit protocol */
+		mci->mci_state = MCIS_SSD;
+		smtpquit(m, mci, e);
+	}
+
+	return (r);
+}
+/*
+**  SMTPMESSAGE -- send message to server
+**
+**	Parameters:
+**		f -- format
+**		m -- the mailer to control formatting.
+**		a, b, c -- parameters
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		writes message to mci->mci_out.
+*/
+
+/*VARARGS1*/
+void
+#ifdef __STDC__
+smtpmessage(char *f, MAILER *m, MCI *mci, ...)
+#else
+smtpmessage(f, m, mci, va_alist)
+	char *f;
+	MAILER *m;
+	MCI *mci;
+	va_dcl
+#endif
+{
+	VA_LOCAL_DECL
+
+	VA_START(mci);
+	(void) vsnprintf(SmtpMsgBuffer, sizeof SmtpMsgBuffer, f, ap);
+	VA_END;
+
+	if (tTd(18, 1) || Verbose)
+		nmessage(">>> %s", SmtpMsgBuffer);
+	if (TrafficLogFile != NULL)
+		fprintf(TrafficLogFile, "%05d >>> %s\n",
+			(int) getpid(), SmtpMsgBuffer);
+	if (mci->mci_out != NULL)
+	{
+		fprintf(mci->mci_out, "%s%s", SmtpMsgBuffer,
+			m == NULL ? "\r\n" : m->m_eol);
+	}
+	else if (tTd(18, 1))
+	{
+		printf("smtpmessage: NULL mci_out\n");
+	}
+}
+
+# endif /* SMTP */
diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..2e5aebe
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,1999 @@
+/*
+ * Copyright (c) 1983, 1995-1997 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)util.c	8.137 (Berkeley) 10/22/97";
+#endif /* not lint */
+
+# include "sendmail.h"
+# include <sysexits.h>
+/*
+**  STRIPQUOTES -- Strip quotes & quote bits from a string.
+**
+**	Runs through a string and strips off unquoted quote
+**	characters and quote bits.  This is done in place.
+**
+**	Parameters:
+**		s -- the string to strip.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+**
+**	Called By:
+**		deliver
+*/
+
+void
+stripquotes(s)
+	char *s;
+{
+	register char *p;
+	register char *q;
+	register char c;
+
+	if (s == NULL)
+		return;
+
+	p = q = s;
+	do
+	{
+		c = *p++;
+		if (c == '\\')
+			c = *p++;
+		else if (c == '"')
+			continue;
+		*q++ = c;
+	} while (c != '\0');
+}
+/*
+**  XALLOC -- Allocate memory and bitch wildly on failure.
+**
+**	THIS IS A CLUDGE.  This should be made to give a proper
+**	error -- but after all, what can we do?
+**
+**	Parameters:
+**		sz -- size of area to allocate.
+**
+**	Returns:
+**		pointer to data region.
+**
+**	Side Effects:
+**		Memory is allocated.
+*/
+
+char *
+xalloc(sz)
+	register int sz;
+{
+	register char *p;
+
+	/* some systems can't handle size zero mallocs */
+	if (sz <= 0)
+		sz = 1;
+
+	p = malloc((unsigned) sz);
+	if (p == NULL)
+	{
+		syserr("!Out of memory!!");
+		/* exit(EX_UNAVAILABLE); */
+	}
+	return (p);
+}
+/*
+**  COPYPLIST -- copy list of pointers.
+**
+**	This routine is the equivalent of newstr for lists of
+**	pointers.
+**
+**	Parameters:
+**		list -- list of pointers to copy.
+**			Must be NULL terminated.
+**		copycont -- if TRUE, copy the contents of the vector
+**			(which must be a string) also.
+**
+**	Returns:
+**		a copy of 'list'.
+**
+**	Side Effects:
+**		none.
+*/
+
+char **
+copyplist(list, copycont)
+	char **list;
+	bool copycont;
+{
+	register char **vp;
+	register char **newvp;
+
+	for (vp = list; *vp != NULL; vp++)
+		continue;
+
+	vp++;
+
+	newvp = (char **) xalloc((int) (vp - list) * sizeof *vp);
+	bcopy((char *) list, (char *) newvp, (int) (vp - list) * sizeof *vp);
+
+	if (copycont)
+	{
+		for (vp = newvp; *vp != NULL; vp++)
+			*vp = newstr(*vp);
+	}
+
+	return (newvp);
+}
+/*
+**  COPYQUEUE -- copy address queue.
+**
+**	This routine is the equivalent of newstr for address queues
+**	addresses marked with QDONTSEND aren't copied
+**
+**	Parameters:
+**		addr -- list of address structures to copy.
+**
+**	Returns:
+**		a copy of 'addr'.
+**
+**	Side Effects:
+**		none.
+*/
+
+ADDRESS *
+copyqueue(addr)
+	ADDRESS *addr;
+{
+	register ADDRESS *newaddr;
+	ADDRESS *ret;
+	register ADDRESS **tail = &ret;
+
+	while (addr != NULL)
+	{
+		if (!bitset(QDONTSEND, addr->q_flags))
+		{
+			newaddr = (ADDRESS *) xalloc(sizeof(ADDRESS));
+			STRUCTCOPY(*addr, *newaddr);
+			*tail = newaddr;
+			tail = &newaddr->q_next;
+		}
+		addr = addr->q_next;
+	}
+	*tail = NULL;
+	
+	return ret;
+}
+/*
+**  PRINTAV -- print argument vector.
+**
+**	Parameters:
+**		av -- argument vector.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		prints av.
+*/
+
+void
+printav(av)
+	register char **av;
+{
+	while (*av != NULL)
+	{
+		if (tTd(0, 44))
+			printf("\n\t%08lx=", (u_long) *av);
+		else
+			(void) putchar(' ');
+		xputs(*av++);
+	}
+	(void) putchar('\n');
+}
+/*
+**  LOWER -- turn letter into lower case.
+**
+**	Parameters:
+**		c -- character to turn into lower case.
+**
+**	Returns:
+**		c, in lower case.
+**
+**	Side Effects:
+**		none.
+*/
+
+char
+lower(c)
+	register char c;
+{
+	return((isascii(c) && isupper(c)) ? tolower(c) : c);
+}
+/*
+**  XPUTS -- put string doing control escapes.
+**
+**	Parameters:
+**		s -- string to put.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		output to stdout
+*/
+
+void
+xputs(s)
+	register const char *s;
+{
+	register int c;
+	register struct metamac *mp;
+	bool shiftout = FALSE;
+	extern struct metamac MetaMacros[];
+
+	if (s == NULL)
+	{
+		printf("%s<null>%s", TermEscape.te_rv_on, TermEscape.te_rv_off);
+		return;
+	}
+	while ((c = (*s++ & 0377)) != '\0')
+	{
+		if (shiftout)
+		{
+			printf("%s", TermEscape.te_rv_off);
+			shiftout = FALSE;
+		}
+		if (!isascii(c))
+		{
+			if (c == MATCHREPL)
+			{
+				printf("%s$", TermEscape.te_rv_on);
+				shiftout = TRUE;
+				if (*s == '\0')
+					continue;
+				c = *s++ & 0377;
+				goto printchar;
+			}
+			if (c == MACROEXPAND)
+			{
+				printf("%s$", TermEscape.te_rv_on);
+				shiftout = TRUE;
+				if (strchr("=~&?", *s) != NULL)
+					putchar(*s++);
+				if (bitset(0200, *s))
+					printf("{%s}", macname(*s++ & 0377));
+				else
+					printf("%c", *s++);
+				continue;
+			}
+			for (mp = MetaMacros; mp->metaname != '\0'; mp++)
+			{
+				if ((mp->metaval & 0377) == c)
+				{
+					printf("%s$%c",
+						TermEscape.te_rv_on,
+						mp->metaname);
+					shiftout = TRUE;
+					break;
+				}
+			}
+			if (c == MATCHCLASS || c == MATCHNCLASS)
+			{
+				if (bitset(0200, *s))
+					printf("{%s}", macname(*s++ & 0377));
+				else if (*s != '\0')
+					printf("%c", *s++);
+			}
+			if (mp->metaname != '\0')
+				continue;
+
+			/* unrecognized meta character */
+			printf("%sM-", TermEscape.te_rv_on);
+			shiftout = TRUE;
+			c &= 0177;
+		}
+  printchar:
+		if (isprint(c))
+		{
+			putchar(c);
+			continue;
+		}
+
+		/* wasn't a meta-macro -- find another way to print it */
+		switch (c)
+		{
+		  case '\n':
+			c = 'n';
+			break;
+
+		  case '\r':
+			c = 'r';
+			break;
+
+		  case '\t':
+			c = 't';
+			break;
+		}
+		if (!shiftout)
+		{
+			printf("%s", TermEscape.te_rv_on);
+			shiftout = TRUE;
+		}
+		if (isprint(c))
+		{
+			(void) putchar('\\');
+			(void) putchar(c);
+		}
+		else
+		{
+			(void) putchar('^');
+			(void) putchar(c ^ 0100);
+		}
+	}
+	if (shiftout)
+		printf("%s", TermEscape.te_rv_off);
+	(void) fflush(stdout);
+}
+/*
+**  MAKELOWER -- Translate a line into lower case
+**
+**	Parameters:
+**		p -- the string to translate.  If NULL, return is
+**			immediate.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		String pointed to by p is translated to lower case.
+**
+**	Called By:
+**		parse
+*/
+
+void
+makelower(p)
+	register char *p;
+{
+	register char c;
+
+	if (p == NULL)
+		return;
+	for (; (c = *p) != '\0'; p++)
+		if (isascii(c) && isupper(c))
+			*p = tolower(c);
+}
+/*
+**  BUILDFNAME -- build full name from gecos style entry.
+**
+**	This routine interprets the strange entry that would appear
+**	in the GECOS field of the password file.
+**
+**	Parameters:
+**		p -- name to build.
+**		login -- the login name of this user (for &).
+**		buf -- place to put the result.
+**		buflen -- length of buf.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		none.
+*/
+
+void
+buildfname(gecos, login, buf, buflen)
+	register char *gecos;
+	char *login;
+	char *buf;
+	int buflen;
+{
+	register char *p;
+	register char *bp = buf;
+
+	if (*gecos == '*')
+		gecos++;
+
+	/* copy gecos, interpolating & to be full name */
+	for (p = gecos; *p != '\0' && *p != ',' && *p != ';' && *p != '%'; p++)
+	{
+		if (bp >= &buf[buflen - 1])
+		{
+			/* buffer overflow -- just use login name */
+			snprintf(buf, buflen, "%s", login);
+			return;
+		}
+		if (*p == '&')
+		{
+			/* interpolate full name */
+			snprintf(bp, buflen - (bp - buf), "%s", login);
+			*bp = toupper(*bp);
+			bp += strlen(bp);
+		}
+		else
+			*bp++ = *p;
+	}
+	*bp = '\0';
+}
+/*
+**  FIXCRLF -- fix <CR><LF> in line.
+**
+**	Looks for the <CR><LF> combination and turns it into the
+**	UNIX canonical <NL> character.  It only takes one line,
+**	i.e., it is assumed that the first <NL> found is the end
+**	of the line.
+**
+**	Parameters:
+**		line -- the line to fix.
+**		stripnl -- if true, strip the newline also.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		line is changed in place.
+*/
+
+void
+fixcrlf(line, stripnl)
+	char *line;
+	bool stripnl;
+{
+	register char *p;
+
+	p = strchr(line, '\n');
+	if (p == NULL)
+		return;
+	if (p > line && p[-1] == '\r')
+		p--;
+	if (!stripnl)
+		*p++ = '\n';
+	*p = '\0';
+}
+/*
+**  PUTLINE -- put a line like fputs obeying SMTP conventions
+**
+**	This routine always guarantees outputing a newline (or CRLF,
+**	as appropriate) at the end of the string.
+**
+**	Parameters:
+**		l -- line to put.
+**		mci -- the mailer connection information.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		output of l to fp.
+*/
+
+void
+putline(l, mci)
+	register char *l;
+	register MCI *mci;
+{
+	putxline(l, strlen(l), mci, PXLF_MAPFROM);
+}
+/*
+**  PUTXLINE -- putline with flags bits.
+**
+**	This routine always guarantees outputing a newline (or CRLF,
+**	as appropriate) at the end of the string.
+**
+**	Parameters:
+**		l -- line to put.
+**		len -- the length of the line.
+**		mci -- the mailer connection information.
+**		pxflags -- flag bits:
+**		    PXLF_MAPFROM -- map From_ to >From_.
+**		    PXLF_STRIP8BIT -- strip 8th bit.
+**		    PXLF_HEADER -- map bare newline in header to newline space.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		output of l to fp.
+*/
+
+void
+putxline(l, len, mci, pxflags)
+	register char *l;
+	size_t len;
+	register MCI *mci;
+	int pxflags;
+{
+	register char *p, *end;
+	int slop = 0;
+
+	/* strip out 0200 bits -- these can look like TELNET protocol */
+	if (bitset(MCIF_7BIT, mci->mci_flags) ||
+	    bitset(PXLF_STRIP8BIT, pxflags))
+	{
+		register char svchar;
+
+		for (p = l; (svchar = *p) != '\0'; ++p)
+			if (bitset(0200, svchar))
+				*p = svchar &~ 0200;
+	}
+
+	end = l + len;
+	do
+	{
+		/* find the end of the line */
+		p = memchr(l, '\n', end - l);
+		if (p == NULL)
+			p = end;
+
+		if (TrafficLogFile != NULL)
+			fprintf(TrafficLogFile, "%05d >>> ", (int) getpid());
+
+		/* check for line overflow */
+		while (mci->mci_mailer->m_linelimit > 0 &&
+		       (p - l + slop) > mci->mci_mailer->m_linelimit)
+		{
+			char *l_base = l;
+			register char *q = &l[mci->mci_mailer->m_linelimit - slop - 1];
+
+			if (l[0] == '.' && slop == 0 &&
+			    bitnset(M_XDOT, mci->mci_mailer->m_flags))
+			{
+				(void) putc('.', mci->mci_out);
+				if (TrafficLogFile != NULL)
+					(void) putc('.', TrafficLogFile);
+			}
+			else if (l[0] == 'F' && slop == 0 &&
+				 bitset(PXLF_MAPFROM, pxflags) &&
+				 strncmp(l, "From ", 5) == 0 &&
+				 bitnset(M_ESCFROM, mci->mci_mailer->m_flags))
+			{
+				(void) putc('>', mci->mci_out);
+				if (TrafficLogFile != NULL)
+					(void) putc('>', TrafficLogFile);
+			}
+			while (l < q)
+				(void) putc(*l++, mci->mci_out);
+			(void) putc('!', mci->mci_out);
+			fputs(mci->mci_mailer->m_eol, mci->mci_out);
+			(void) putc(' ', mci->mci_out);
+			if (TrafficLogFile != NULL)
+			{
+				for (l = l_base; l < q; l++)
+					(void) putc(*l, TrafficLogFile);
+				fprintf(TrafficLogFile, "!\n%05d >>>  ",
+					(int) getpid());
+			}
+			slop = 1;
+		}
+
+		/* output last part */
+		if (l[0] == '.' && slop == 0 &&
+		    bitnset(M_XDOT, mci->mci_mailer->m_flags))
+		{
+			(void) putc('.', mci->mci_out);
+			if (TrafficLogFile != NULL)
+				(void) putc('.', TrafficLogFile);
+		}
+		else if (l[0] == 'F' && slop == 0 &&
+			 bitset(PXLF_MAPFROM, pxflags) &&
+			 strncmp(l, "From ", 5) == 0 &&
+			 bitnset(M_ESCFROM, mci->mci_mailer->m_flags))
+		{
+			(void) putc('>', mci->mci_out);
+			if (TrafficLogFile != NULL)
+				(void) putc('>', TrafficLogFile);
+		}
+		for ( ; l < p; ++l)
+		{
+			if (TrafficLogFile != NULL)
+				(void) putc(*l, TrafficLogFile);
+			(void) putc(*l, mci->mci_out);
+		}
+		if (TrafficLogFile != NULL)
+			(void) putc('\n', TrafficLogFile);
+		fputs(mci->mci_mailer->m_eol, mci->mci_out);
+		if (l < end && *l == '\n')
+		{
+			if (*++l != ' ' && *l != '\t' && *l != '\0' &&
+			    bitset(PXLF_HEADER, pxflags))
+			{
+				(void) putc(' ', mci->mci_out);
+				if (TrafficLogFile != NULL)
+					(void) putc(' ', TrafficLogFile);
+			}
+		}
+	} while (l < end);
+}
+/*
+**  XUNLINK -- unlink a file, doing logging as appropriate.
+**
+**	Parameters:
+**		f -- name of file to unlink.
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		f is unlinked.
+*/
+
+void
+xunlink(f)
+	char *f;
+{
+	register int i;
+
+	if (LogLevel > 98)
+		sm_syslog(LOG_DEBUG, CurEnv->e_id,
+			"unlink %s",
+			f);
+
+	i = unlink(f);
+	if (i < 0 && LogLevel > 97)
+		sm_syslog(LOG_DEBUG, CurEnv->e_id,
+			"%s: unlink-fail %d",
+			f, errno);
+}
+/*
+**  XFCLOSE -- close a file, doing logging as appropriate.
+**
+**	Parameters:
+**		fp -- file pointer for the file to close
+**		a, b -- miscellaneous crud to print for debugging
+**
+**	Returns:
+**		none.
+**
+**	Side Effects:
+**		fp is closed.
+*/
+
+void
+xfclose(fp, a, b)
+	FILE *fp;
+	char *a, *b;
+{
+	if (tTd(53, 99))
+		printf("xfclose(%lx) %s %s\n", (u_long) fp, a, b);
+#if XDEBUG
+	if (fileno(fp) == 1)
+		syserr("xfclose(%s %s): fd = 1", a, b);
+#endif
+	if (fclose(fp) < 0 && tTd(53, 99))
+		printf("xfclose FAILURE: %s\n", errstring(errno));
+}
+/*
+**  SFGETS -- "safe" fgets -- times out and ignores random interrupts.
+**
+**	Parameters:
+**		buf -- place to put the input line.
+**		siz -- size of buf.
+**		fp -- file to read from.
+**		timeout -- the timeout before error occurs.
+**		during -- what we are trying to read (for error messages).
+**
+**	Returns:
+**		NULL on error (including timeout).  This will also leave
+**			buf containing a null string.
+**		buf otherwise.
+**
+**	Side Effects:
+**		none.
+*/
+
+static jmp_buf	CtxReadTimeout;
+static void	readtimeout();
+
+char *
+sfgets(buf, siz, fp, timeout, during)
+	char *buf;
+	int siz;
+	FILE *fp;
+	time_t timeout;
+	char *during;
+{
+	register EVENT *ev = NULL;
+	register char *p;
+
+	if (fp == NULL)
+	{
+		buf[0] = '\0';
+		return NULL;
+	}
+
+	/* set the timeout */
+	if (timeout != 0)
+	{
+		if (setjmp(CtxReadTimeout) != 0)
+		{
+			if (LogLevel > 1)
+				sm_syslog(LOG_NOTICE, CurEnv->e_id,
+				       "timeout waiting for input from %.100s during %s",
+				       CurHostName ? CurHostName : "local",
+				       during);
+			errno = 0;
+			buf[0] = '\0';
+#if XDEBUG
+			checkfd012(during);
+#endif
+			if (TrafficLogFile != NULL)
+				fprintf(TrafficLogFile, "%05d <<< [TIMEOUT]\n",
+					(int) getpid());
+			return (NULL);
+		}
+		ev = setevent(timeout, readtimeout, 0);
+	}
+
+	/* try to read */
+	p = NULL;
+	while (!feof(fp) && !ferror(fp))
+	{
+		errno = 0;
+		p = fgets(buf, siz, fp);
+		if (p != NULL || errno != EINTR)
+			break;
+		clearerr(fp);
+	}
+
+	/* clear the event if it has not sprung */
+	clrevent(ev);
+
+	/* clean up the books and exit */
+	LineNumber++;
+	if (p == NULL)
+	{
+		buf[0] = '\0';
+		if (TrafficLogFile != NULL)
+			fprintf(TrafficLogFile, "%05d <<< [EOF]\n", (int) getpid());
+		return (NULL);
+	}
+	if (TrafficLogFile != NULL)
+		fprintf(TrafficLogFile, "%05d <<< %s", (int) getpid(), buf);
+	if (SevenBitInput)
+	{
+		for (p = buf; *p != '\0'; p++)
+			*p &= ~0200;
+	}
+	else if (!HasEightBits)
+	{
+		for (p = buf; *p != '\0'; p++)
+		{
+			if (bitset(0200, *p))
+			{
+				HasEightBits = TRUE;
+				break;
+			}
+		}
+	}
+	return (buf);
+}
+
+static void
+readtimeout(timeout)
+	time_t timeout;
+{
+	longjmp(CtxReadTimeout, 1);
+}
+/*
+**  FGETFOLDED -- like fgets, but know about folded lines.
+**
+**	Parameters:
+**		buf -- place to put result.
+**		n -- bytes available.
+**		f -- file to read from.
+**
+**	Returns:
+**		input line(s) on success, NULL on error or EOF.
+**		This will normally be buf -- unless the line is too
+**			long, when it will be xalloc()ed.
+**
+**	Side Effects:
+**		buf gets lines from f, with continuation lines (lines
+**		with leading white space) appended.  CRLF's are mapped
+**		into single newlines.  Any trailing NL is stripped.
+*/
+
+char *
+fgetfolded(buf, n, f)
+	char *buf;
+	register int n;
+	FILE *f;
+{
+	register char *p = buf;
+	char *bp = buf;
+	register int i;
+
+	n--;
+	while ((i = getc(f)) != EOF)
+	{
+		if (i == '\r')
+		{
+			i = getc(f);
+			if (i != '\n')
+			{
+				if (i != EOF)
+					(void) ungetc(i, f);
+				i = '\r';
+			}
+		}
+		if (--n <= 0)
+		{
+			/* allocate new space */
+			char *nbp;
+			int nn;
+
+			nn = (p - bp);
+			if (nn < MEMCHUNKSIZE)
+				nn *= 2;
+			else
+				nn += MEMCHUNKSIZE;
+			nbp = xalloc(nn);
+			bcopy(bp, nbp, p - bp);
+			p = &nbp[p - bp];
+			if (bp != buf)
+				free(bp);
+			bp = nbp;
+			n = nn - (p - bp);
+		}
+		*p++ = i;
+		if (i == '\n')
+		{
+			LineNumber++;
+			i = getc(f);
+			if (i != EOF)
+				(void) ungetc(i, f);
+			if (i != ' ' && i != '\t')
+				break;
+		}
+	}
+	if (p == bp)
+		return (NULL);
+	if (p[-1] == '\n')
+		p--;
+	*p = '\0';
+	return (bp);
+}
+/*
+**  CURTIME -- return current time.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		the current time.
+**
+**	Side Effects:
+**		none.
+*/
+
+time_t
+curtime()
+{
+	auto time_t t;
+
+	(void) time(&t);
+	return (t);
+}
+/*
+**  ATOBOOL -- convert a string representation to boolean.
+**
+**	Defaults to "TRUE"
+**
+**	Parameters:
+**		s -- string to convert.  Takes "tTyY" as true,
+**			others as false.
+**
+**	Returns:
+**		A boolean representation of the string.
+**
+**	Side Effects:
+**		none.
+*/
+
+bool
+atobool(s)
+	register char *s;
+{
+	if (s == NULL || *s == '\0' || strchr("tTyY", *s) != NULL)
+		return (TRUE);
+	return (FALSE);
+}
+/*
+**  ATOOCT -- convert a string representation to octal.
+**
+**	Parameters:
+**		s -- string to convert.
+**
+**	Returns:
+**		An integer representing the string interpreted as an
+**		octal number.
+**
+**	Side Effects:
+**		none.
+*/
+
+int
+atooct(s)
+	register char *s;
+{
+	register int i = 0;
+
+	while (*s >= '0' && *s <= '7')
+		i = (i << 3) | (*s++ - '0');
+	return (i);
+}
+/*
+**  BITINTERSECT -- tell if two bitmaps intersect
+**
+**	Parameters:
+**		a, b -- the bitmaps in question
+**
+**	Returns:
+**		TRUE if they have a non-null intersection
+**		FALSE otherwise
+**
+**	Side Effects:
+**		none.
+*/
+
+bool
+bitintersect(a, b)
+	BITMAP a;
+	BITMAP b;
+{
+	int i;
+
+	for (i = BITMAPBYTES / sizeof (int); --i >= 0; )
+		if ((a[i] & b[i]) != 0)
+			return (TRUE);
+	return (FALSE);
+}
+/*
+**  BITZEROP -- tell if a bitmap is all zero
+**
+**	Parameters:
+**		map -- the bit map to check
+**
+**	Returns:
+**		TRUE if map is all zero.
+**		FALSE if there are any bits set in map.
+**
+**	Side Effects:
+**		none.
+*/
+
+bool
+bitzerop(map)
+	BITMAP map;
+{
+	int i;
+
+	for (i = BITMAPBYTES / sizeof (int); --i >= 0; )
+		if (map[i] != 0)
+			return (FALSE);
+	return (TRUE);
+}
+/*
+**  STRCONTAINEDIN -- tell if one string is contained in another
+**
+**	Parameters:
+**		a -- possible substring.
+**		b -- possible superstring.
+**
+**	Returns:
+**		TRUE if a is contained in b.
+**		FALSE otherwise.
+*/
+
+bool
+strcontainedin(a, b)
+	register char *a;
+	register char *b;
+{
+	int la;
+	int lb;
+	int c;
+
+	la = strlen(a);
+	lb = strlen(b);
+	c = *a;
+	if (isascii(c) && isupper(c))
+		c = tolower(c);
+	for (; lb-- >= la; b++)
+	{
+		if (*b != c && isascii(*b) && isupper(*b) && tolower(*b) != c)
+			continue;
+		if (strncasecmp(a, b, la) == 0)
+			return TRUE;
+	}
+	return FALSE;
+}
+/*
+**  CHECKFD012 -- check low numbered file descriptors
+**
+**	File descriptors 0, 1, and 2 should be open at all times.
+**	This routine verifies that, and fixes it if not true.
+**
+**	Parameters:
+**		where -- a tag printed if the assertion failed
+**
+**	Returns:
+**		none
+*/
+
+void
+checkfd012(where)
+	char *where;
+{
+#if XDEBUG
+	register int i;
+
+	for (i = 0; i < 3; i++)
+		fill_fd(i, where);
+#endif /* XDEBUG */
+}
+/*
+**  CHECKFDOPEN -- make sure file descriptor is open -- for extended debugging
+**
+**	Parameters:
+**		fd -- file descriptor to check.
+**		where -- tag to print on failure.
+**
+**	Returns:
+**		none.
+*/
+
+void
+checkfdopen(fd, where)
+	int fd;
+	char *where;
+{
+#if XDEBUG
+	struct stat st;
+
+	if (fstat(fd, &st) < 0 && errno == EBADF)
+	{
+		syserr("checkfdopen(%d): %s not open as expected!", fd, where);
+		printopenfds(TRUE);
+	}
+#endif
+}
+/*
+**  CHECKFDS -- check for new or missing file descriptors
+**
+**	Parameters:
+**		where -- tag for printing.  If null, take a base line.
+**
+**	Returns:
+**		none
+**
+**	Side Effects:
+**		If where is set, shows changes since the last call.
+*/
+
+void
+checkfds(where)
+	char *where;
+{
+	int maxfd;
+	register int fd;
+	bool printhdr = TRUE;
+	int save_errno = errno;
+	static BITMAP baseline;
+	extern int DtableSize;
+
+	if (DtableSize > 256)
+		maxfd = 256;
+	else
+		maxfd = DtableSize;
+	if (where == NULL)
+		clrbitmap(baseline);
+
+	for (fd = 0; fd < maxfd; fd++)
+	{
+		struct stat stbuf;
+
+		if (fstat(fd, &stbuf) < 0 && errno != EOPNOTSUPP)
+		{
+			if (!bitnset(fd, baseline))
+				continue;
+			clrbitn(fd, baseline);
+		}
+		else if (!bitnset(fd, baseline))
+			setbitn(fd, baseline);
+		else
+			continue;
+
+		/* file state has changed */
+		if (where == NULL)
+			continue;
+		if (printhdr)
+		{
+			sm_syslog(LOG_DEBUG, CurEnv->e_id,
+				"%s: changed fds:",
+				where);
+			printhdr = FALSE;
+		}
+		dumpfd(fd, TRUE, TRUE);
+	}
+	errno = save_errno;
+}
+/*
+**  PRINTOPENFDS -- print the open file descriptors (for debugging)
+**
+**	Parameters:
+**		logit -- if set, send output to syslog; otherwise
+**			print for debugging.
+**
+**	Returns:
+**		none.
+*/
+
+#include <arpa/inet.h>
+
+void
+printopenfds(logit)
+	bool logit;
+{
+	register int fd;
+	extern int DtableSize;
+
+	for (fd = 0; fd < DtableSize; fd++)
+		dumpfd(fd, FALSE, logit);
+}
+/*
+**  DUMPFD -- dump a file descriptor
+**
+**	Parameters:
+**		fd -- the file descriptor to dump.
+**		printclosed -- if set, print a notification even if
+**			it is closed; otherwise print nothing.
+**		logit -- if set, send output to syslog instead of stdout.
+*/
+
+void
+dumpfd(fd, printclosed, logit)
+	int fd;
+	bool printclosed;
+	bool logit;
+{
+	register char *p;
+	char *hp;
+	char *fmtstr;
+#ifdef S_IFSOCK
+	SOCKADDR sa;
+#endif
+	auto SOCKADDR_LEN_T slen;
+	int i;
+	struct stat st;
+	char buf[200];
+
+	p = buf;
+	snprintf(p, SPACELEFT(buf, p), "%3d: ", fd);
+	p += strlen(p);
+
+	if (fstat(fd, &st) < 0)
+	{
+		if (errno != EBADF)
+		{
+			snprintf(p, SPACELEFT(buf, p), "CANNOT STAT (%s)",
+				errstring(errno));
+			goto printit;
+		}
+		else if (printclosed)
+		{
+			snprintf(p, SPACELEFT(buf, p), "CLOSED");
+			goto printit;
+		}
+		return;
+	}
+
+	i = fcntl(fd, F_GETFL, NULL);
+	if (i != -1)
+	{
+		snprintf(p, SPACELEFT(buf, p), "fl=0x%x, ", i);
+		p += strlen(p);
+	}
+
+	snprintf(p, SPACELEFT(buf, p), "mode=%o: ", st.st_mode);
+	p += strlen(p);
+	switch (st.st_mode & S_IFMT)
+	{
+#ifdef S_IFSOCK
+	  case S_IFSOCK:
+		snprintf(p, SPACELEFT(buf, p), "SOCK ");
+		p += strlen(p);
+		slen = sizeof sa;
+		if (getsockname(fd, &sa.sa, &slen) < 0)
+			snprintf(p, SPACELEFT(buf, p), "(%s)", errstring(errno));
+		else
+		{
+			hp = hostnamebyanyaddr(&sa);
+			if (sa.sa.sa_family == AF_INET)
+				snprintf(p, SPACELEFT(buf, p), "%s/%d",
+					hp, ntohs(sa.sin.sin_port));
+			else
+				snprintf(p, SPACELEFT(buf, p), "%s", hp);
+		}
+		p += strlen(p);
+		snprintf(p, SPACELEFT(buf, p), "->");
+		p += strlen(p);
+		slen = sizeof sa;
+		if (getpeername(fd, &sa.sa, &slen) < 0)
+			snprintf(p, SPACELEFT(buf, p), "(%s)", errstring(errno));
+		else
+		{
+			hp = hostnamebyanyaddr(&sa);
+			if (sa.sa.sa_family == AF_INET)
+				snprintf(p, SPACELEFT(buf, p), "%s/%d",
+					hp, ntohs(sa.sin.sin_port));
+			else
+				snprintf(p, SPACELEFT(buf, p), "%s", hp);
+		}
+		break;
+#endif
+
+	  case S_IFCHR:
+		snprintf(p, SPACELEFT(buf, p), "CHR: ");
+		p += strlen(p);
+		goto defprint;
+
+	  case S_IFBLK:
+		snprintf(p, SPACELEFT(buf, p), "BLK: ");
+		p += strlen(p);
+		goto defprint;
+
+#if defined(S_IFIFO) && (!defined(S_IFSOCK) || S_IFIFO != S_IFSOCK)
+	  case S_IFIFO:
+		snprintf(p, SPACELEFT(buf, p), "FIFO: ");
+		p += strlen(p);
+		goto defprint;
+#endif
+
+#ifdef S_IFDIR
+	  case S_IFDIR:
+		snprintf(p, SPACELEFT(buf, p), "DIR: ");
+		p += strlen(p);
+		goto defprint;
+#endif
+
+#ifdef S_IFLNK
+	  case S_IFLNK:
+		snprintf(p, SPACELEFT(buf, p), "LNK: ");
+		p += strlen(p);
+		goto defprint;
+#endif
+
+	  default:
+defprint:
+		if (sizeof st.st_size > sizeof (long))
+			fmtstr = "dev=%d/%d, ino=%d, nlink=%d, u/gid=%d/%d, size=%qd";
+		else
+			fmtstr = "dev=%d/%d, ino=%d, nlink=%d, u/gid=%d/%d, size=%ld";
+		snprintf(p, SPACELEFT(buf, p), fmtstr,
+			major(st.st_dev), minor(st.st_dev), st.st_ino,
+			st.st_nlink, st.st_uid, st.st_gid, st.st_size);
+		break;
+	}
+
+printit:
+	if (logit)
+		sm_syslog(LOG_DEBUG, CurEnv ? CurEnv->e_id : NULL,
+			"%.800s", buf);
+	else
+		printf("%s\n", buf);
+}
+/*
+**  SHORTENSTRING -- return short version of a string
+**
+**	If the string is already short, just return it.  If it is too
+**	long, return the head and tail of the string.
+**
+**	Parameters:
+**		s -- the string to shorten.
+**		m -- the max length of the string.
+**
+**	Returns:
+**		Either s or a short version of s.
+*/
+
+#ifndef MAXSHORTSTR
+# define MAXSHORTSTR	203
+#endif
+
+char *
+shortenstring(s, m)
+	register const char *s;
+	int m;
+{
+	int l;
+	static char buf[MAXSHORTSTR + 1];
+
+	l = strlen(s);
+	if (l < m)
+		return (char *) s;
+	if (m > MAXSHORTSTR)
+		m = MAXSHORTSTR;
+	else if (m < 10)
+	{
+		if (m < 5)
+		{
+			strncpy(buf, s, m);
+			buf[m] = '\0';
+			return buf;
+		}
+		strncpy(buf, s, m - 3);
+		strcpy(buf + m - 3, "...");
+		return buf;
+	}
+	m = (m - 3) / 2;
+	strncpy(buf, s, m);
+	strcpy(buf + m, "...");
+	strcpy(buf + m + 3, s + l - m);
+	return buf;
+}
+/*
+**  SHORTEN_HOSTNAME -- strip local domain information off of hostname.
+**
+**	Parameters:
+**		host -- the host to shorten (stripped in place).
+**
+**	Returns:
+**		none.
+*/
+
+void
+shorten_hostname(host)
+	char host[];
+{
+	register char *p;
+	char *mydom;
+	int i;
+	bool canon = FALSE;
+
+	/* strip off final dot */
+	p = &host[strlen(host) - 1];
+	if (*p == '.')
+	{
+		*p = '\0';
+		canon = TRUE;
+	}
+
+	/* see if there is any domain at all -- if not, we are done */
+	p = strchr(host, '.');
+	if (p == NULL)
+		return;
+
+	/* yes, we have a domain -- see if it looks like us */
+	mydom = macvalue('m', CurEnv);
+	if (mydom == NULL)
+		mydom = "";
+	i = strlen(++p);
+	if ((canon ? strcasecmp(p, mydom) : strncasecmp(p, mydom, i)) == 0 &&
+	    (mydom[i] == '.' || mydom[i] == '\0'))
+		*--p = '\0';
+}
+/*
+**  PROG_OPEN -- open a program for reading
+**
+**	Parameters:
+**		argv -- the argument list.
+**		pfd -- pointer to a place to store the file descriptor.
+**		e -- the current envelope.
+**
+**	Returns:
+**		pid of the process -- -1 if it failed.
+*/
+
+int
+prog_open(argv, pfd, e)
+	char **argv;
+	int *pfd;
+	ENVELOPE *e;
+{
+	int pid;
+	int i;
+	int saveerrno;
+	int fdv[2];
+	char *p, *q;
+	char buf[MAXLINE + 1];
+	extern int DtableSize;
+
+	if (pipe(fdv) < 0)
+	{
+		syserr("%s: cannot create pipe for stdout", argv[0]);
+		return -1;
+	}
+	pid = fork();
+	if (pid < 0)
+	{
+		syserr("%s: cannot fork", argv[0]);
+		close(fdv[0]);
+		close(fdv[1]);
+		return -1;
+	}
+	if (pid > 0)
+	{
+		/* parent */
+		close(fdv[1]);
+		*pfd = fdv[0];
+		return pid;
+	}
+
+	/* child -- close stdin */
+	close(0);
+
+	/* stdout goes back to parent */
+	close(fdv[0]);
+	if (dup2(fdv[1], 1) < 0)
+	{
+		syserr("%s: cannot dup2 for stdout", argv[0]);
+		_exit(EX_OSERR);
+	}
+	close(fdv[1]);
+
+	/* stderr goes to transcript if available */
+	if (e->e_xfp != NULL)
+	{
+		if (dup2(fileno(e->e_xfp), 2) < 0)
+		{
+			syserr("%s: cannot dup2 for stderr", argv[0]);
+			_exit(EX_OSERR);
+		}
+	}
+
+	/* this process has no right to the queue file */
+	if (e->e_lockfp != NULL)
+		close(fileno(e->e_lockfp));
+
+	/* run as default user */
+	endpwent();
+	if (setgid(DefGid) < 0)
+		syserr("prog_open: setgid(%ld) failed", (long) DefGid);
+	if (setuid(DefUid) < 0)
+		syserr("prog_open: setuid(%ld) failed", (long) DefUid);
+
+	/* run in some directory */
+	if (ProgMailer != NULL)
+		p = ProgMailer->m_execdir;
+	else
+		p = NULL;
+	for (; p != NULL; p = q)
+	{
+		q = strchr(p, ':');
+		if (q != NULL)
+			*q = '\0';
+		expand(p, buf, sizeof buf, e);
+		if (q != NULL)
+			*q++ = ':';
+		if (buf[0] != '\0' && chdir(buf) >= 0)
+			break;
+	}
+	if (p == NULL)
+	{
+		/* backup directories */
+		if (chdir("/tmp") < 0)
+			(void) chdir("/");
+	}
+
+	/* arrange for all the files to be closed */
+	for (i = 3; i < DtableSize; i++)
+	{
+		register int j;
+
+		if ((j = fcntl(i, F_GETFD, 0)) != -1)
+			(void) fcntl(i, F_SETFD, j | 1);
+	}
+
+	/* now exec the process */
+	execve(argv[0], (ARGV_T) argv, (ARGV_T) UserEnviron);
+
+	/* woops!  failed */
+	saveerrno = errno;
+	syserr("%s: cannot exec", argv[0]);
+	if (transienterror(saveerrno))
+		_exit(EX_OSERR);
+	_exit(EX_CONFIG);
+	return -1;	/* avoid compiler warning on IRIX */
+}
+/*
+**  GET_COLUMN  -- look up a Column in a line buffer
+**
+**	Parameters:
+**		line -- the raw text line to search.
+**		col -- the column number to fetch.
+**		delim -- the delimiter between columns.  If null,
+**			use white space.
+**		buf -- the output buffer.
+**		buflen -- the length of buf.
+**
+**	Returns:
+**		buf if successful.
+**		NULL otherwise.
+*/
+
+char *
+get_column(line, col, delim, buf, buflen)
+	char line[];
+	int col;
+	char delim;
+	char buf[];
+	int buflen;
+{
+	char *p;
+	char *begin, *end;
+	int i;
+	char delimbuf[4];
+	
+	if (delim == '\0')
+		strcpy(delimbuf, "\n\t ");
+	else
+	{
+		delimbuf[0] = delim;
+		delimbuf[1] = '\0';
+	}
+
+	p = line;
+	if (*p == '\0')
+		return NULL;			/* line empty */
+	if (*p == delim && col == 0)
+		return NULL;			/* first column empty */
+
+	begin = line;
+
+	if (col == 0 && delim == '\0')
+	{
+		while (*begin != '\0' && isascii(*begin) && isspace(*begin))
+			begin++;
+	}
+
+	for (i = 0; i < col; i++)
+	{
+		if ((begin = strpbrk(begin, delimbuf)) == NULL)
+			return NULL;		/* no such column */
+		begin++;
+		if (delim == '\0')
+		{
+			while (*begin != '\0' && isascii(*begin) && isspace(*begin))
+				begin++;
+		}
+	}
+	
+	end = strpbrk(begin, delimbuf);
+	if (end == NULL)
+		i = strlen(begin);
+	else
+		i = end - begin;
+	if (i >= buflen)
+		i = buflen - 1;
+	strncpy(buf, begin, i);
+	buf[i] = '\0';
+	return buf;
+}
+/*
+**  CLEANSTRCPY -- copy string keeping out bogus characters
+**
+**	Parameters:
+**		t -- "to" string.
+**		f -- "from" string.
+**		l -- length of space available in "to" string.
+**
+**	Returns:
+**		none.
+*/
+
+void
+cleanstrcpy(t, f, l)
+	register char *t;
+	register char *f;
+	int l;
+{
+	/* check for newlines and log if necessary */
+	(void) denlstring(f, TRUE, TRUE);
+
+	l--;
+	while (l > 0 && *f != '\0')
+	{
+		if (isascii(*f) &&
+		    (isalnum(*f) || strchr("!#$%&'*+-./^_`{|}~", *f) != NULL))
+		{
+			l--;
+			*t++ = *f;
+		}
+		f++;
+	}
+	*t = '\0';
+}
+/*
+**  DENLSTRING -- convert newlines in a string to spaces
+**
+**	Parameters:
+**		s -- the input string
+**		strict -- if set, don't permit continuation lines.
+**		logattacks -- if set, log attempted attacks.
+**
+**	Returns:
+**		A pointer to a version of the string with newlines
+**		mapped to spaces.  This should be copied.
+*/
+
+char *
+denlstring(s, strict, logattacks)
+	char *s;
+	bool strict;
+	bool logattacks;
+{
+	register char *p;
+	int l;
+	static char *bp = NULL;
+	static int bl = 0;
+
+	p = s;
+	while ((p = strchr(p, '\n')) != NULL)
+		if (strict || (*++p != ' ' && *p != '\t'))
+			break;
+	if (p == NULL)
+		return s;
+
+	l = strlen(s) + 1;
+	if (bl < l)
+	{
+		/* allocate more space */
+		if (bp != NULL)
+			free(bp);
+		bp = xalloc(l);
+		bl = l;
+	}
+	strcpy(bp, s);
+	for (p = bp; (p = strchr(p, '\n')) != NULL; )
+		*p++ = ' ';
+
+	if (logattacks)
+	{
+		sm_syslog(LOG_NOTICE, CurEnv->e_id,
+			"POSSIBLE ATTACK from %.100s: newline in string \"%s\"",
+			RealHostName == NULL ? "[UNKNOWN]" : RealHostName,
+			shortenstring(bp, 203));
+	}
+
+	return bp;
+}
+/*
+**  PATH_IS_DIR -- check to see if file exists and is a directory.
+**
+**	There are some additional checks for security violations in
+**	here.  This routine is intended to be used for the host status
+**	support.
+**
+**	Parameters:
+**		pathname -- pathname to check for directory-ness.
+**		createflag -- if set, create directory if needed.
+**
+**	Returns:
+**		TRUE -- if the indicated pathname is a directory
+**		FALSE -- otherwise
+*/
+
+int
+path_is_dir(pathname, createflag)
+	char *pathname;
+	bool createflag;
+{
+	struct stat statbuf;
+
+#if HASLSTAT
+	if (lstat(pathname, &statbuf) < 0)
+#else
+	if (stat(pathname, &statbuf) < 0)
+#endif
+	{
+		if (errno != ENOENT || !createflag)
+			return FALSE;
+		if (mkdir(pathname, 0755) < 0)
+			return FALSE;
+		return TRUE;
+	}
+	if (!S_ISDIR(statbuf.st_mode))
+	{
+		errno = ENOTDIR;
+		return FALSE;
+	}
+
+	/* security: don't allow writable directories */
+	if (bitset(S_IWGRP|S_IWOTH, statbuf.st_mode))
+	{
+		errno = EACCES;
+		return FALSE;
+	}
+
+	return TRUE;
+}
+/*
+**  PROC_LIST_ADD -- add process id to list of our children
+**
+**	Parameters:
+**		pid -- pid to add to list.
+**
+**	Returns:
+**		none
+*/
+
+static pid_t	*ProcListVec	= NULL;
+static int	ProcListSize	= 0;
+
+#define NO_PID		((pid_t) 0)
+#ifndef PROC_LIST_SEG
+# define PROC_LIST_SEG	32		/* number of pids to alloc at a time */
+#endif
+
+void
+proc_list_add(pid)
+	pid_t pid;
+{
+	int i;
+	extern void proc_list_probe __P((void));
+
+	for (i = 0; i < ProcListSize; i++)
+	{
+		if (ProcListVec[i] == NO_PID)
+			break;
+	}
+	if (i >= ProcListSize)
+	{
+		/* probe the existing vector to avoid growing infinitely */
+		proc_list_probe();
+
+		/* now scan again */
+		for (i = 0; i < ProcListSize; i++)
+		{
+			if (ProcListVec[i] == NO_PID)
+				break;
+		}
+	}
+	if (i >= ProcListSize)
+	{
+		/* grow process list */
+		pid_t *npv;
+
+		npv = (pid_t *) xalloc(sizeof (pid_t) * (ProcListSize + PROC_LIST_SEG));
+		if (ProcListSize > 0)
+		{
+			bcopy(ProcListVec, npv, ProcListSize * sizeof (pid_t));
+			free(ProcListVec);
+		}
+		for (i = ProcListSize; i < ProcListSize + PROC_LIST_SEG; i++)
+			npv[i] = NO_PID;
+		i = ProcListSize;
+		ProcListSize += PROC_LIST_SEG;
+		ProcListVec = npv;
+	}
+	ProcListVec[i] = pid;
+	CurChildren++;
+}
+/*
+**  PROC_LIST_DROP -- drop pid from process list
+**
+**	Parameters:
+**		pid -- pid to drop
+**
+**	Returns:
+**		none.
+*/
+
+void
+proc_list_drop(pid)
+	pid_t pid;
+{
+	int i;
+
+	for (i = 0; i < ProcListSize; i++)
+	{
+		if (ProcListVec[i] == pid)
+		{
+			ProcListVec[i] = NO_PID;
+			break;
+		}
+	}
+	if (CurChildren > 0)
+		CurChildren--;
+}
+/*
+**  PROC_LIST_CLEAR -- clear the process list
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		none.
+*/
+
+void
+proc_list_clear()
+{
+	int i;
+
+	for (i = 0; i < ProcListSize; i++)
+		ProcListVec[i] = NO_PID;
+	CurChildren = 0;
+}
+/*
+**  PROC_LIST_PROBE -- probe processes in the list to see if they still exist
+**
+**	Parameters:
+**		none
+**
+**	Returns:
+**		none
+*/
+
+void
+proc_list_probe()
+{
+	int i;
+
+	for (i = 0; i < ProcListSize; i++)
+	{
+		if (ProcListVec[i] == NO_PID)
+			continue;
+		if (kill(ProcListVec[i], 0) < 0)
+		{
+			if (LogLevel > 3)
+				sm_syslog(LOG_DEBUG, CurEnv->e_id,
+					"proc_list_probe: lost pid %d",
+					ProcListVec[i]);
+			ProcListVec[i] = NO_PID;
+			CurChildren--;
+		}
+	}
+	if (CurChildren < 0)
+		CurChildren = 0;
+}
+/*
+**  SM_STRCASECMP -- 8-bit clean version of strcasecmp
+**
+**	Thank you, vendors, for making this all necessary.
+*/
+
+/*
+ * Copyright (c) 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)strcasecmp.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+
+/*
+ * This array is designed for mapping upper and lower case letter
+ * together for a case independent comparison.  The mappings are
+ * based upon ascii character sequences.
+ */
+static const u_char charmap[] = {
+	0000, 0001, 0002, 0003, 0004, 0005, 0006, 0007,
+	0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017,
+	0020, 0021, 0022, 0023, 0024, 0025, 0026, 0027,
+	0030, 0031, 0032, 0033, 0034, 0035, 0036, 0037,
+	0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047,
+	0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057,
+	0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,
+	0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077,
+	0100, 0141, 0142, 0143, 0144, 0145, 0146, 0147,
+	0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157,
+	0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167,
+	0170, 0171, 0172, 0133, 0134, 0135, 0136, 0137,
+	0140, 0141, 0142, 0143, 0144, 0145, 0146, 0147,
+	0150, 0151, 0152, 0153, 0154, 0155, 0156, 0157,
+	0160, 0161, 0162, 0163, 0164, 0165, 0166, 0167,
+	0170, 0171, 0172, 0173, 0174, 0175, 0176, 0177,
+	0200, 0201, 0202, 0203, 0204, 0205, 0206, 0207,
+	0210, 0211, 0212, 0213, 0214, 0215, 0216, 0217,
+	0220, 0221, 0222, 0223, 0224, 0225, 0226, 0227,
+	0230, 0231, 0232, 0233, 0234, 0235, 0236, 0237,
+	0240, 0241, 0242, 0243, 0244, 0245, 0246, 0247,
+	0250, 0251, 0252, 0253, 0254, 0255, 0256, 0257,
+	0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267,
+	0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277,
+	0300, 0301, 0302, 0303, 0304, 0305, 0306, 0307,
+	0310, 0311, 0312, 0313, 0314, 0315, 0316, 0317,
+	0320, 0321, 0322, 0323, 0324, 0325, 0326, 0327,
+	0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337,
+	0340, 0341, 0342, 0343, 0344, 0345, 0346, 0347,
+	0350, 0351, 0352, 0353, 0354, 0355, 0356, 0357,
+	0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367,
+	0370, 0371, 0372, 0373, 0374, 0375, 0376, 0377,
+};
+
+int
+sm_strcasecmp(s1, s2)
+	const char *s1, *s2;
+{
+	register const u_char *cm = charmap,
+			*us1 = (const u_char *)s1,
+			*us2 = (const u_char *)s2;
+
+	while (cm[*us1] == cm[*us2++])
+		if (*us1++ == '\0')
+			return (0);
+	return (cm[*us1] - cm[*--us2]);
+}
+
+int
+sm_strncasecmp(s1, s2, n)
+	const char *s1, *s2;
+	register size_t n;
+{
+	if (n != 0) {
+		register const u_char *cm = charmap,
+				*us1 = (const u_char *)s1,
+				*us2 = (const u_char *)s2;
+
+		do {
+			if (cm[*us1] != cm[*us2++])
+				return (cm[*us1] - cm[*--us2]);
+			if (*us1++ == '\0')
+				break;
+		} while (--n != 0);
+	}
+	return (0);
+}
diff --git a/src/version.c b/src/version.c
new file mode 100644
index 0000000..dc041ba
--- /dev/null
+++ b/src/version.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 1983 Eric P. Allman
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)version.c	8.8.8.1 (Berkeley) 10/24/97";
+#endif /* not lint */
+
+char	Version[] = "8.8.8";
diff --git a/test/Results b/test/Results
new file mode 100644
index 0000000..3d930da
--- /dev/null
+++ b/test/Results
@@ -0,0 +1,156 @@
+The following are results of running t_setreuid on various architectures.
+
+OPSYS	VERSION	STATUS	DATE	  TESTER/NOTES
+=====	=======	======	====	  ============
+
+SunOS	4.1	OK	93.07.19  eric
+SunOS	4.1.2	OK	93.07.19  eric
+SunOS	4.1.3	OK	93.09.25  Robert Elz
+
+BSD	4.4	OK	93.07.19  eric	(wierd results, but functional)
+BSD	4.3Utah	OK	93.07.19  eric
+
+FreeBSD	2.1-sta	OK	96.04.14  Jaye Mathisen <mrcpu@cdsnet.net>
+
+Ultrix	4.2A	OK	93.07.19  eric
+Ultrix	4.3A	OK	93.07.19  Allan Johannesen
+Ultrix	4.5	OK	96.09.18  Gregory Neil Shapiro <gshapiro@wpi.edu>
+
+HP-UX	8.07	OK	93.07.19  eric (on 7xx series)
+HP-UX	8.02	OK	93.07.19  Michael Corrigan (on 8xx series)
+HP-UX	8.00	OK	93.07.21  Michael Corrigan (on 3xx/4xx series)
+HP-UX	9.01	OK	93.11.19  Cassidy (on 7xx series)
+
+Solaris	2.1
+Solaris	2.2	FAIL	93.07.19  Bill Wisner
+Solaris	2.3	FAIL	95.11.22  Scott J. Kramer <sjk@lux.com>
+Solaris	2.5	OK	96.02.29  Carson Gaspar <carson@lehman.com>
+Solaris	2.5.1	OK	96.11.29  Gregory Neil Shapiro <gshapiro@wpi.edu>
+
+OSF/1	T1.3-4	OK	93.07.19  eric (on DEC Alpha)
+OSF/1	1.3	OK	94.12.10  Jeff A. Earickson (on Intel Paragon)
+OSF/1	3.2D	OK	96.09.18  Gregory Neil Shapiro <gshapiro@wpi.edu>
+OSF/1	4.0	OK	96.09.18  Gregory Neil Shapiro <gshapiro@wpi.edu>
+
+CxOS	11.5	OK	96.07.08  Eric Schnoebelen <eric@cirr.com>
+CxOS	11.0	OK	93.01.21  Eric Schnoebelen (CxOS 11.0 beta 1)
+CxOS	10.x	OK	93.01.21  Eric Schnoebelen
+
+AIX	3.1.5	FAIL	93.08.07  David J. N. Begley
+AIX	3.2.3e	FAIL	93.07.26  Steve Bauer <sbauer@silver.sdsmt.edu>
+AIX	3.2.4	FAIL	93.10.07  David J. N. Begley
+AIX	3.2.5	FAIL	94.05.17  Steve Bauer <sbauer@hpcmmib.hpc.sdsmt.edu>
+AIX	4.1	FAIL	96.10.21  Hakan Lindholm <hakan@af.lu.se>
+AIX	4.2	OK	96.10.16  Steve Bauer <sbauer@krypton.hpc.sdsmt.edu>
+
+IRIX	4.0.4	OK	93.09.25  Robert Elz
+IRIX	5.2	OK	94.12.06  Mark Andrews <mandrews@alias.com>
+IRIX	5.3	OK	94.12.06  Mark Andrews <mandrews@alias.com>
+IRIX	6.2	OK	96.09.16  Kari E. Hurtta <Kari.Hurtta@ozone.FMI.FI>
+IRIX	6.3	OK	97.02.10  Mark Andrews <mandrews@aw.sgi.com>
+
+SCO	3.2v4.0	OK	93.10.02  Peter Wemm (with -lsocket from 3.2v4 devsys)
+
+NeXT	2.1	OK	93.07.28  eric
+NeXT	3.0	OK	34.05.05  Kevin John Wang <kwang@lore.acs.calpoly.edu>
+
+Linux	0.99p10	OK	93.08.08  Karl London
+Linux	0.99p13	OK	93.09.27  Christian Kuhtz
+Linux	0.99p14	OK	93.11.30  Christian Kuhtz <chk@data-hh.Hanse.DE>
+Linux	1.0	OK	94.03.19  Shayne Smith <snsmith@rastus.brisnet.org.au>
+Linux	1.2.13	OK	95.11.02  Sven Neuhaus <sven@ping.de>
+Linux	2.0.17	OK	96.09.03  Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
+
+BSD/386	1.0	OK	93.11.13  Tony Sanders
+
+DELL	2.2	OK	93.11.15  Peter Wemm (using -DSETEUID)
+
+Pyramid	5.0d	OK	95.01.14  David Miller <davem@nadzieja.rutgers.edu>
+
+
+
+The following are results of running t_seteuid on various architectures.
+
+OPSYS	VERSION	STATUS	DATE	  TESTER/NOTES
+=====	=======	======	====	  ============
+
+Solaris	2.3	OK	95.11.22  Scott J. Kramer <sjk@lux.com>
+Solaris	2.4	OK	95.09.22  Thomas 'Mike' Michlmayr <mike@cosy.sbg.ac.at>
+Solaris	2.5	OK	96.02.29  Carson Gaspar <carson@lehman.com>
+Solaris	2.5.1	OK	96.11.29  Gregory Neil Shapiro <gshapiro@wpi.edu>
+
+Linux	1.2.13	FAIL	95.11.02  Sven Neuhaus <sven@ping.de>
+Linux	2.0.17	FAIL	96.09.03  Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
+
+AIX	4.1	OK	96.10.21  Hakan Lindholm <hakan@af.lu.se>
+
+IRIX	5.2	OK	95.12.01  Mark Andrews <mandrews@aw.sgi.com>
+IRIX	5.3	OK	95.12.01  Mark Andrews <mandrews@aw.sgi.com>
+IRIX	6.2	OK	96.09.16  Kari E. Hurtta <Kari.Hurtta@ozone.FMI.FI>
+IRIX	6.3	OK	97.02.10  Mark Andrews <mandrews@aw.sgi.com>
+
+FreeBSD	2.1-sta	OK	96.04.14  Jaye Mathisen <mrcpu@cdsnet.net>
+
+Ultrix	4.5	FAIL	96.09.18  Gregory Neil Shapiro <gshapiro@wpi.edu>
+
+OSF/1	3.2D	OK	96.09.18  Gregory Neil Shapiro <gshapiro@wpi.edu>
+OSF/1	4.0	OK	96.09.18  Gregory Neil Shapiro <gshapiro@wpi.edu>
+
+CxOS	11.5	FAIL	96.07.08  Eric Schnoebelen <eric@cirr.com>
+
+
+The following are the results of running t_pathconf.c.  Safe means that
+the underlying filesystem (in NFS, the filesystem on the server) does not
+permit regular (non-root) users to chown their files to another user.
+Unsafe means that they can.  Typically, BSD-based systems do not permit
+giveaway and System V-based systems do.  However, some systems (e.g.,
+Solaris) can set this on a per-system or per-filesystem basis.  Entries
+are the return value of pathconf, the errno value, and a * if chown
+disagreed with the result of the pathconf call, and a ? if the test has
+not been run.  A mark of [R] means that the local filesystem has
+chown set to be restricted, [U] means that it is set to be unrestricted.
+
+			     Safe Filesystem	     Unsafe Filesystem
+SYSTEM		LOCAL	    NFS-V2	NFS-V3	    NFS-V2	 NFS-V3
+
+SunOS 4.1.3_U1	1/0	    -1/EINVAL*	n/a	    -1/EINVAL?	 n/a
+SunOS 4.1.4	1/0	    -1/EINVAL*	n/a	    -1/EINVAL	 n/a
+
+AIX 3.2		0/0	    0/0
+
+Solaris 2.4	1/0	    -1/EINVAL*
+Solaris 2.5	1/0	    -1/EINVAL*	1/0			 0/0?
+Solaris 2.5.1	1/0	    -1/EINVAL*	0/0
+
+DEC OSF1 3.0	0/0	    0/0
+DEC OSF1 3.2D-2	0/0	    0/0		0/0
+DEC OSF1 4.0A	0/0	    0/0		0/0
+DEC OSF 4.0B	0/0	    0/0		0/0
+
+Ultrix 4.3	0/0	    0/0		n/a			 n/a
+Ultrix 4.5	1/0	    1/0
+
+HP-UX 9.05	-1/0	    -1/EOPNOTSUPP*	    -1/EOPNOTSUPP
+HP-UX 9.05[R]	1/0	    -1/EOPNOTSUPP*	    -1/EOPNOTSUPP*
+HP-UX 10.10	-1/0	    -1/EOPNOTSUPP*	    -1/EOPNOTSUPP
+HP-UX 10.20		    -1/EOPNOTSUPP?			 -1/EOPNOTSUPP?
+HP-UX 10.30	-1/0	    -1/EOPNOTSUPP	    -1/EOPNOTSUPP
+
+BSD/OS 2.1	1/0
+
+FreeBSD 2.1.7	1/0	    -1/EINVAL*		    -1/EINVAL
+
+Irix 5.3		    -1/0*		    -1/0
+Irix 6.2		    1/0			    -1/0	 0/0*
+Irix 6.2	-1/0	    -1/0
+Irix 6.3 R10000	-1/0				    -1/0	 0/0*
+
+A/UX 3.1.1	1/0
+
+DomainOS [R]	-1/0*
+DomainOS [U]	-1/0
+
+NCR MP-RAS 2	-1/0
+NCR MP-RAS 3	-1/0
+
+Linux 2.0.27	1/0	    1/0
diff --git a/test/t_exclopen.c b/test/t_exclopen.c
new file mode 100644
index 0000000..a42baa9
--- /dev/null
+++ b/test/t_exclopen.c
@@ -0,0 +1,93 @@
+/*
+**  This program tests your system to see if you have the lovely
+**  security-defeating semantics that an open with O_CREAT|O_EXCL
+**  set will successfully open a file named by a symbolic link that
+**  points to a non-existent file.  Sadly, Posix is mute on what
+**  should happen in this situation.
+**
+**  Results to date:
+**	AIX 3.2		OK
+**	BSD family	OK
+**	  BSD/OS 2.1	OK
+**	  FreeBSD 2.1	OK
+**	DEC OSF/1 3.0	OK
+**	HP-UX 9.04	FAIL
+**	HP-UX 9.05	FAIL
+**	HP-UX 9.07	OK
+**	HP-UX 10.01	OK
+**	HP-UX 10.10	OK
+**	HP-UX 10.20	OK
+**	Irix 5.3	OK
+**	Irix 6.2	OK
+**	Irix 6.3	OK
+**	Irix 6.4	OK
+**	Linux		OK
+**	NeXT 2.1	OK
+**	Solaris 2.x	OK
+**	SunOS 4.x	OK
+**	Ultrix 4.3	OK
+*/
+
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+char Attacker[128];
+char Attackee[128];
+
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	struct stat st;
+
+	sprintf(Attacker, "/tmp/attacker.%d.%ld", getpid(), time(NULL));
+	sprintf(Attackee, "/tmp/attackee.%d.%ld", getpid(), time(NULL));
+
+	if (symlink(Attackee, Attacker) < 0)
+	{
+		printf("Could not create %s->%s symlink: %d\n",
+			Attacker, Attackee, errno);
+		bail(1);
+	}
+	(void) unlink(Attackee);
+	if (stat(Attackee, &st) >= 0)
+	{
+		printf("%s already exists -- remove and try again.\n",
+			Attackee);
+		bail(1);
+	}
+	if (open(Attacker, O_WRONLY|O_CREAT|O_EXCL, 0644) < 0)
+	{
+		int saveerr = errno;
+
+		if (stat(Attackee, &st) >= 0)
+		{
+			printf("Weird.  Open failed but %s was created anyhow (errno = %d)\n",
+				Attackee, saveerr);
+			bail(1);
+		}
+		printf("Good show!  Exclusive open works properly with symbolic links (errno = %d).\n",
+			saveerr);
+		bail(0);
+	}
+	if (stat(Attackee, &st) < 0)
+	{
+		printf("Weird.  Open succeeded but %s was not created\n",
+			Attackee);
+		bail(2);
+	}
+	printf("Bad news: you can do an exclusive open through a symbolic link\n");
+	printf("\tBe sure you #define BOGUS_O_EXCL in conf.h\n");
+	bail(1);
+}
+
+bail(stat)
+	int stat;
+{
+	(void) unlink(Attacker);
+	(void) unlink(Attackee);
+	exit(stat);
+}
diff --git a/test/t_pathconf.c b/test/t_pathconf.c
new file mode 100644
index 0000000..a4b5038
--- /dev/null
+++ b/test/t_pathconf.c
@@ -0,0 +1,63 @@
+/*
+**  The following test program tries the pathconf(2) routine.  It should
+**  be run in a non-NFS-mounted directory (e.g., /tmp) and on remote (NFS)
+**  mounted directories running both NFS-v2 and NFS-v3 from systems that
+**  both do and do not permit file giveaway.
+*/
+
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sysexits.h>
+
+main()
+{
+	int fd;
+	int i;
+	char tbuf[100];
+	extern int errno;
+
+	if (geteuid() == 0)
+	{
+		printf("*** Run me as a non-root user! ***\n");
+		exit(EX_USAGE);
+	}
+
+	strcpy(tbuf, "TXXXXXX");
+	fd = mkstemp(tbuf);
+	if (fd < 0)
+	{
+		printf("*** Could not create test file %s\n", tbuf);
+		exit(EX_CANTCREAT);
+	}
+	errno = 0;
+	i = pathconf(".", _PC_CHOWN_RESTRICTED);
+	printf("pathconf(.) returns %2d, errno = %d\n", i, errno);
+	errno = 0;
+	i = pathconf(tbuf, _PC_CHOWN_RESTRICTED);
+	printf("pathconf(%s) returns %2d, errno = %d\n", tbuf, i, errno);
+	errno = 0;
+	i = fpathconf(fd, _PC_CHOWN_RESTRICTED);
+	printf("fpathconf(%s) returns %2d, errno = %d\n", tbuf, i, errno);
+	if (errno == 0 && i >= 0)
+	{
+		/* so it claims that it doesn't work -- try anyhow */
+		printf("  fpathconf claims that chown is safe ");
+		if (fchown(fd, 1, 1) >= 0)
+			printf("*** but fchown works anyhow! ***\n");
+		else
+			printf("and fchown agrees\n");
+	}
+	else
+	{
+		/* well, let's see what really happens */
+		printf("  fpathconf claims that chown is not safe ");
+		if (fchown(fd, 1, 1) >= 0)
+			printf("as indeed it is not\n");
+		else
+			printf("*** but in fact it is safe ***\n");
+	}
+	unlink(tbuf);
+	exit(EX_OK);
+}
diff --git a/test/t_seteuid.c b/test/t_seteuid.c
new file mode 100644
index 0000000..f3bd529
--- /dev/null
+++ b/test/t_seteuid.c
@@ -0,0 +1,121 @@
+/*
+**  This program checks to see if your version of seteuid works.
+**  Compile it, make it setuid root, and run it as yourself (NOT as
+**  root).  If it won't compile or outputs any MAYDAY messages, don't
+**  define USESETEUID in conf.h.
+**
+**	NOTE:  It is not sufficient to have seteuid in your library.
+**	You must also have saved uids that function properly.
+**
+**  Compilation is trivial -- just "cc t_seteuid.c".  Make it setuid,
+**  root and then execute it as a non-root user.
+*/
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#ifdef __hpux
+#define seteuid(e)	setresuid(-1, e, -1)
+#endif
+
+main()
+{
+	int fail = 0;
+	uid_t realuid = getuid();
+
+	printuids("initial uids", realuid, 0);
+
+	if (geteuid() != 0)
+	{
+		printf("SETUP ERROR: re-run setuid root\n");
+		exit(1);
+	}
+
+	if (getuid() == 0)
+	{
+		printf("SETUP ERROR: must be run by a non-root user\n");
+		exit(1);
+	}
+
+	if (seteuid(1) < 0)
+		printf("seteuid(1) failure\n");
+	printuids("after seteuid(1)", realuid, 1);
+
+	if (geteuid() != 1)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+
+	/* do activity here */
+
+	if (seteuid(0) < 0)
+	{
+		fail++;
+		printf("seteuid(0) failure\n");
+	}
+	printuids("after seteuid(0)", realuid, 0);
+
+	if (geteuid() != 0)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+	if (getuid() != realuid)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong real uid\n");
+	}
+	printf("\n");
+
+	if (seteuid(2) < 0)
+	{
+		fail++;
+		printf("seteuid(2) failure\n");
+	}
+	printuids("after seteuid(2)", realuid, 2);
+
+	if (geteuid() != 2)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+
+	/* do activity here */
+
+	if (seteuid(0) < 0)
+	{
+		fail++;
+		printf("seteuid(0) failure\n");
+	}
+	printuids("after seteuid(0)", realuid, 0);
+
+	if (geteuid() != 0)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+	if (getuid() != realuid)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong real uid\n");
+	}
+
+	if (fail)
+	{
+		printf("\nThis system cannot use seteuid\n");
+		exit(1);
+	}
+
+	printf("\nIt is safe to define USESETEUID on this system\n");
+	exit(0);
+}
+
+printuids(str, r, e)
+	char *str;
+	int r, e;
+{
+	printf("%s (should be %d/%d): r/euid=%d/%d\n", str, r, e,
+		getuid(), geteuid());
+}
diff --git a/test/t_setreuid.c b/test/t_setreuid.c
new file mode 100644
index 0000000..6622068
--- /dev/null
+++ b/test/t_setreuid.c
@@ -0,0 +1,133 @@
+/*
+**  This program checks to see if your version of setreuid works.
+**  Compile it, make it setuid root, and run it as yourself (NOT as
+**  root).  If it won't compile or outputs any MAYDAY messages, don't
+**  define HASSETREUID in conf.h.
+**
+**  Compilation is trivial -- just "cc t_setreuid.c".  Make it setuid,
+**  root and then execute it as a non-root user.
+*/
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#ifdef __hpux
+#define setreuid(r, e)	setresuid(r, e, -1)
+#endif
+
+main()
+{
+	int fail = 0;
+	uid_t realuid = getuid();
+
+	printuids("initial uids", realuid, 0);
+
+	if (geteuid() != 0)
+	{
+		printf("SETUP ERROR: re-run setuid root\n");
+		exit(1);
+	}
+
+	if (getuid() == 0)
+	{
+		printf("SETUP ERROR: must be run by a non-root user\n");
+		exit(1);
+	}
+
+	if (setreuid(0, 1) < 0)
+	{
+		fail++;
+		printf("setreuid(0, 1) failure\n");
+	}
+	printuids("after setreuid(0, 1)", 0, 1);
+
+	if (geteuid() != 1)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+
+	/* do activity here */
+
+	if (setreuid(-1, 0) < 0)
+	{
+		fail++;
+		printf("setreuid(-1, 0) failure\n");
+	}
+	printuids("after setreuid(-1, 0)", 0, 0);
+	if (setreuid(realuid, 0) < 0)
+	{
+		fail++;
+		printf("setreuid(%d, 0) failure\n", realuid);
+	}
+	printuids("after setreuid(realuid, 0)", realuid, 0);
+
+	if (geteuid() != 0)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+	if (getuid() != realuid)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong real uid\n");
+	}
+	printf("\n");
+
+	if (setreuid(0, 2) < 0)
+	{
+		fail++;
+		printf("setreuid(0, 2) failure\n");
+	}
+	printuids("after setreuid(0, 2)", 0, 2);
+
+	if (geteuid() != 2)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+
+	/* do activity here */
+
+	if (setreuid(-1, 0) < 0)
+	{
+		fail++;
+		printf("setreuid(-1, 0) failure\n");
+	}
+	printuids("after setreuid(-1, 0)", 0, 0);
+	if (setreuid(realuid, 0) < 0)
+	{
+		fail++;
+		printf("setreuid(%d, 0) failure\n", realuid);
+	}
+	printuids("after setreuid(realuid, 0)", realuid, 0);
+
+	if (geteuid() != 0)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong effective uid\n");
+	}
+	if (getuid() != realuid)
+	{
+		fail++;
+		printf("MAYDAY!  Wrong real uid\n");
+	}
+
+	if (fail)
+	{
+		printf("\nThis system cannot use setreuid\n");
+		exit(1);
+	}
+
+	printf("\nIt is safe to define HASSETREUID on this system\n");
+	exit(0);
+}
+
+printuids(str, r, e)
+	char *str;
+	int r, e;
+{
+	printf("%s (should be %d/%d): r/euid=%d/%d\n", str, r, e,
+		getuid(), geteuid());
+}