diff options
Diffstat (limited to 'usr/src/cmd/tcpd/miscd.c')
-rw-r--r-- | usr/src/cmd/tcpd/miscd.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/usr/src/cmd/tcpd/miscd.c b/usr/src/cmd/tcpd/miscd.c deleted file mode 100644 index 1ab835c450..0000000000 --- a/usr/src/cmd/tcpd/miscd.c +++ /dev/null @@ -1,120 +0,0 @@ - /* - * Front end to the ULTRIX miscd service. The front end logs the remote host - * name and then invokes the real miscd daemon. Install as "/usr/etc/miscd", - * after renaming the real miscd daemon to the name defined with the - * REAL_MISCD macro. - * - * Connections and diagnostics are logged through syslog(3). - * - * The Ultrix miscd program implements (among others) the systat service, which - * pipes the output from who(1) to stdout. This information is potentially - * useful to systems crackers. - * - * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands. - */ - -#ifndef lint -static char sccsid[] = "@(#) miscd.c 1.10 96/02/11 17:01:30"; -#endif - -/* System libraries. */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <stdio.h> -#include <syslog.h> - -#ifndef MAXPATHNAMELEN -#define MAXPATHNAMELEN BUFSIZ -#endif - -#ifndef STDIN_FILENO -#define STDIN_FILENO 0 -#endif - -/* Local stuff. */ - -#include "patchlevel.h" -#include "tcpd.h" - -int allow_severity = SEVERITY; /* run-time adjustable */ -int deny_severity = LOG_WARNING; /* ditto */ - -main(argc, argv) -int argc; -char **argv; -{ - struct request_info request; - char path[MAXPATHNAMELEN]; - - /* Attempt to prevent the creation of world-writable files. */ - -#ifdef DAEMON_UMASK - umask(DAEMON_UMASK); -#endif - - /* - * Open a channel to the syslog daemon. Older versions of openlog() - * require only two arguments. - */ - -#ifdef LOG_MAIL - (void) openlog(argv[0], LOG_PID, FACILITY); -#else - (void) openlog(argv[0], LOG_PID); -#endif - - /* - * Find out the endpoint addresses of this conversation. Host name - * lookups and double checks will be done on demand. - */ - - request_init(&request, RQ_DAEMON, argv[0], RQ_FILE, STDIN_FILENO, 0); - fromhost(&request); - - /* - * Optionally look up and double check the remote host name. Sites - * concerned with security may choose to refuse connections from hosts - * that pretend to have someone elses host name. - */ - -#ifdef PARANOID - if (STR_EQ(eval_hostname(request.client), paranoid)) - refuse(&request); -#endif - - /* - * The BSD rlogin and rsh daemons that came out after 4.3 BSD disallow - * socket options at the IP level. They do so for a good reason. - * Unfortunately, we cannot use this with SunOS 4.1.x because the - * getsockopt() system call can panic the system. - */ - -#ifdef KILL_IP_OPTIONS - fix_options(&request); -#endif - - /* - * Check whether this host can access the service in argv[0]. The - * access-control code invokes optional shell commands as specified in - * the access-control tables. - */ - -#ifdef HOSTS_ACCESS - if (!hosts_access(&request)) - refuse(&request); -#endif - - /* Report request and invoke the real daemon program. */ - - syslog(allow_severity, "connect from %s", eval_client(&request)); - sprintf(path, "%s/miscd", REAL_DAEMON_DIR); - closelog(); - (void) execv(path, argv); - syslog(LOG_ERR, "error: cannot execute %s: %m", path); - clean_exit(&request); - /* NOTREACHED */ -} |