exit.sh revision 34f9b3eef6fdadbda0a846aa4d68691ac40eace5
########################################################################
# #
# This software is part of the ast package #
# Copyright (c) 1982-2009 AT&T Intellectual Property #
# and is licensed under the #
# Common Public License, Version 1.0 #
# by AT&T Intellectual Property #
# #
# A copy of the License is available at #
# http://www.opensource.org/licenses/cpl1.0.txt #
# (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) #
# #
# Information and Software Systems Research #
# AT&T Research #
# Florham Park NJ #
# #
# David Korn <dgk@research.att.com> #
# #
########################################################################
function err_exit
{
print -u2 -n "\t"
print -u2 -r ${Command}[$1]: "${@:2}"
let Errors+=1
}
alias err_exit='err_exit $LINENO'
Command=${0##*/}
integer Errors=0
tmp=$(mktemp -dt) || { err_exit mktemp -dt failed; exit 1; }
trap "cd /; rm -rf $tmp" EXIT
function abspath
{
base=$(basename $SHELL)
cd ${SHELL%/$base}
newdir=$(pwd)
cd ~-
print $newdir/$base
}
#test for proper exit of shell
builtin getconf
ABSHELL=$(abspath)
cd $tmp || { err_exit "cd $tmp failed"; exit 1; }
print exit 0 >.profile
${ABSHELL} <<!
HOME=$PWD \
PATH=$PATH \
SHELL=$ABSSHELL \
$(
v=$(getconf LIBPATH)
for v in ${v//,/ }
do v=${v#*:}
v=${v%%:*}
eval [[ \$$v ]] && eval print -n \" \"\$v=\"\$$v\"
done
) \
exec -c -a -ksh ${ABSHELL} -c "exit 1" 1>/dev/null 2>&1
!
status=$(echo $?)
if [[ -o noprivileged && $status != 0 ]]
then err_exit 'exit in .profile is ignored'
elif [[ -o privileged && $status == 0 ]]
then err_exit 'privileged .profile not ignored'
fi
if [[ $(trap 'code=$?; echo $code; trap 0; exit $code' 0; exit 123) != 123 ]]
then err_exit 'exit not setting $?'
fi
cat > run.sh <<- "EOF"
trap 'code=$?; echo $code; trap 0; exit $code' 0
( trap 0; exit 123 )
EOF
if [[ $($SHELL ./run.sh) != 123 ]]
then err_exit 'subshell trap on exit overwrites parent trap'
fi
cd ~- || err_exit "cd back failed"
$SHELL -c 'builtin -f cmd getconf; getconf --"?-version"; exit 0' >/dev/null 2>&1 || err_exit 'ksh plugin exit failed -- was ksh built with CCFLAGS+=$(CC.EXPORT.DYNAMIC)?'
exit $((Errors))