13405 ksh93 update to 2012-08-01

13434 sh: mishandles backslash as last character of a block of input
11750 ksh mkdir builtin doesn't honor special file permissions
9199 ksh93 builtin *grep -v mishandles blank lines, blows up libgcrypt-config
6756 sh (and ksh) have issues with ${1+"$@"}
6520 ksh: sleep could wait forever
4860 ksh93: core in printf
3791 /bin/sh's builtin 'rm' busted: 'rm -f' without arguments returns error
1047 ksh overwrites child core files
880 ksh93 coredumps on 'unset'
499 "interrupted system call" when using "tee" builtin in ksh
Reviewed by: Robert Mustacchi <rm@fingolfin.org>
Reviewed by: Hans Rosenfeld <rosenfeld@grumpf.hope-2000.org>
Reviewed by: Dominik Hassler <hadfl@omnios.org>
Approved by: Rich Lowe <richlowe@richlowe.net>

1 files changed, 0 insertions, 266 deletions

diff --git a/usr/src/lib/libshell/common/scripts/filemutexdemo1.sh b/usr/src/lib/libshell/common/scripts/filemutexdemo1.sh
deleted file mode 100644
index 1d09e4aeb3..0000000000
--- a/usr/src/lib/libshell/common/scripts/filemutexdemo1.sh
+++ /dev/null
@@ -1,266 +0,0 @@
-#!/usr/bin/ksh93
-
-#
-# CDDL HEADER START
-#
-# The contents of this file are subject to the terms of the
-# Common Development and Distribution License (the "License").
-# You may not use this file except in compliance with the License.
-#
-# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
-# or http://www.opensolaris.org/os/licensing.
-# See the License for the specific language governing permissions
-# and limitations under the License.
-#
-# When distributing Covered Code, include this CDDL HEADER in each
-# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
-# If applicable, add the following below this CDDL HEADER, with the
-# fields enclosed by brackets "[]" replaced with your own identifying
-# information: Portions Copyright [yyyy] [name of copyright owner]
-#
-# CDDL HEADER END
-#
-
-#
-# Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
-#
-
-#
-# filemutexdemo1 - a simple locking demo which supports read/write
-# locks and critical sections (like JAVA's "syncronized" keyword)
-#
-
-# Solaris needs /usr/xpg6/bin:/usr/xpg4/bin because the tools in /usr/bin are not POSIX-conformant
-export PATH=/usr/xpg6/bin:/usr/xpg4/bin:/bin:/usr/bin
-
-# Make sure all math stuff runs in the "C" locale to avoid problems
-# with alternative # radix point representations (e.g. ',' instead of
-# '.' in de_DE.*-locales). This needs to be set _before_ any
-# floating-point constants are defined in this script).
-if [[ "${LC_ALL}" != "" ]] ; then
-    export \
-        LC_MONETARY="${LC_ALL}" \
-        LC_MESSAGES="${LC_ALL}" \
-        LC_COLLATE="${LC_ALL}" \
-        LC_CTYPE="${LC_ALL}"
-        unset LC_ALL
-fi
-export LC_NUMERIC=C
-
-# Definition for a mutex which uses the filesystem for locking
-typeset -T filemutex_t=(
-	typeset name
-	
-	typeset lock_dirname
-	
-	typeset locked_exclusive="false"
-	typeset locked_shared="false"
-	
-	# keep track of subshell level. The problem is that we do not know a
-	# way to figure out whether someone calls "unlock" in a subshell and then
-	# leaves the subshell and calls "unlock" again
-	integer subshell=-1
-	
-	typeset lock_dirname
-	
-	# create a filemutex instance (including lock directory)
-	function create
-	{
-		# make sure we return an error if the init didn't work
-		set -o errexit
-
-		[[ "$1" == "" ]] && return 1
-		
-		_.name="$1"
-		_.lock_dirname="/tmp/filemutex_t_${_.name}.lock"
-		
-		mkdir "${_.lock_dirname}"
-		
-		# last entry, used to mark the mutex as initalised+valid
-		(( _.subshell=.sh.subshell ))
-		return 0
-	}
-
-	# use a filemutex instance (same as "create" but without creating 
-	# the lock directory)
-	function create_child
-	{
-		# make sure we return an error if the init didn't work
-		set -o errexit
-
-		[[ "$1" == "" ]] && return 1
-		
-		_.name="$1"
-		_.lock_dirname="/tmp/filemutex_t_${_.name}.lock"
-		
-		# last entry, used to mark the mutex as initalised+valid
-		(( _.subshell=.sh.subshell ))
-		return 0
-	}
-	
-	function check_subshell
-	{
-		(( _.subshell == .sh.subshell )) && return 0
-		print -u2 -f "filemutex_t.%s(%s): Wrong subshell level\n" "$1" "${_.name}"
-		return 1
-	}
-
-	function try_lock_shared
-	{
-		_.check_subshell "try_lock_shared" || return 1
-		
-		mkdir "${_.lock_dirname}/shared_${PPID}_$$" 2>/dev/null || return 1
-		_.locked_shared="true"
-		return 0
-	}
-	
-	function lock_shared
-	{
-		float interval=0.2
-
-		_.check_subshell "lock_shared" || return 1
-		
-		while ! _.try_lock_shared ; do sleep ${interval} ; (( interval+=interval/10. )) ; done
-		return 0
-	}
-
-	function try_lock_exclusive
-	{
-		_.check_subshell "try_lock_exclusive" || return 1
-		
-		rmdir "${_.lock_dirname}" 2>/dev/null || return 1
-		_.locked_exclusive="true"
-		return 0
-	}
-			
-	function lock_exclusive
-	{
-		float interval=0.2
-		
-		_.check_subshell "lock_exclusive" || return 1
-		
-		while ! _.try_lock_exclusive ; do sleep ${interval} ; (( interval+=interval/10. )) ; done
-		return 0
-	}
-	
-	# critical section support (like java's "synchronized" keyword)
-	function synchronized
-	{
-		integer retcode
-
-		_.check_subshell "synchronized" || return 1
-		
-		_.lock_exclusive
-		
-		"$@"
-		(( retcode=$? ))
-
-		_.unlock
-		
-		return ${retcode}
-	}
-
-	# critical section support with shared lock
-	function synchronized_shared
-	{
-		integer retcode
-
-		_.check_subshell "synchronized_shared" || return 1
-		
-		_.lock_shared
-		
-		"$@"
-		(( retcode=$? ))
-
-		_.unlock
-		
-		return ${retcode}
-	}
-		
-	function unlock
-	{
-		# return an error if rmdir/mkdir/check_subshell fail...
-		set -o errexit
-		
-		_.check_subshell "unlock"
-
-		if ${_.locked_shared} ; then
-			rmdir "${_.lock_dirname}/shared_${PPID}_$$"
-			_.locked_shared="false"
-			return 0
-		elif ${_.locked_exclusive} ; then
-			mkdir "${_.lock_dirname}"
-			_.locked_exclusive="false"
-			return 0
-		fi
-
-		print -u2 -f "filemutex_t.unlock(%s): mutex '%s' not locked." "$1" "${_.name}"
-		return 1
-	}
-	
-	# destroy mutex if noone is using it anymore (not the same as "unset" !!))
-	function destroy
-	{
-		_.check_subshell "destroy" || return 1
-
-		(${_.locked_exclusive} || ${_.locked_shared}) && _.unlock
-		rmdir "${_.lock_dirname}"
-		return 0
-	}
-)
-
-# main
-builtin mkdir
-builtin rmdir
-
-print "## Start."
-
-typeset -r mymutexname="hello_world"
-
-filemutex_t fs
-
-fs.create "${mymutexname}" || print -u2 "Mutex init failed."
-
-print "# Starting child which keeps an exclusive lock for 10 seconds..."
-(
-	filemutex_t child_fs
-	
-	child_fs.create_child "${mymutexname}"
-
-	child_fs.lock_exclusive
-	sleep 10
-	child_fs.unlock
-) &
-
-sleep 1
-
-printf "%T: # Waiting to obtain a shared lock...\n"
-fs.lock_shared
-printf "%T: # Obtained shared lock\n"
-
-printf "fs.locked_exclusive=%s, fs.locked_shared=%s\n" "${fs.locked_exclusive}" "${fs.locked_shared}"
-
-ls -lad /tmp/filemutex*/*
-
-printf "%T: # Executing child which runs printf '|%%s|\\\n' 'hello' 'world' inside a synchronized section\n"
-(
-	filemutex_t child_fs
-	
-	child_fs.create_child "${mymutexname}"
-
-	child_fs.synchronized printf '|%s|\n' 'hello' 'world'
-) &
-
-printf "%T: # Sleeping 5 secs while holding the shared lock...\n"
-sleep 5.
-
-printf "%T: # Releasing shared lock...\n"
-fs.unlock
-
-sleep 5.
-print "# Destroying lock..."
-fs.destroy
-
-print "## Done."
-
-exit 0