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cde/src/cmd/ksh93/tests/restricted.sh
2021-03-13 19:27:15 +00:00

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########################################################################
# #
# This software is part of the ast package #
# Copyright (c) 1982-2011 AT&T Intellectual Property #
# and is licensed under the #
# Eclipse Public License, Version 1.0 #
# by AT&T Intellectual Property #
# #
# A copy of the License is available at #
# http://www.eclipse.org/org/documents/epl-v10.html #
# (with md5 checksum b35adb5213ca9657e911e9befb180842) #
# #
# Information and Software Systems Research #
# AT&T Research #
# Florham Park NJ #
# #
# David Korn <dgk@research.att.com> #
# #
########################################################################
. "${SHTESTS_COMMON:-${0%/*}/_common}"
binecho=$(whence -p echo)
# test restricted shell
pwd=$PWD
case $SHELL in
/*) ;;
*/*) SHELL=$pwd/$SHELL;;
*) SHELL=$(whence "$SHELL");;
esac
function check_restricted
{
rm -f out
LC_MESSAGES=C rksh -c "$@" 2> out > /dev/null
grep restricted out > /dev/null 2>&1
}
ln -s $SHELL rksh
PATH=$PWD:$PATH
rksh -c '[[ -o restricted ]]' || err_exit 'restricted option not set'
[[ $(rksh -c 'print hello') == hello ]] || err_exit 'unable to run print'
check_restricted "$binecho" || err_exit "$binecho not restricted"
check_restricted ./echo || err_exit './echo not restricted'
check_restricted 'SHELL=ksh' || err_exit 'SHELL assignment not restricted'
check_restricted 'PATH=/bin' || err_exit 'PATH assignment not restricted'
check_restricted 'FPATH=/bin' || err_exit 'FPATH assignment not restricted'
check_restricted 'ENV=/bin' || err_exit 'ENV assignment not restricted'
check_restricted 'print > file' || err_exit '> file not restricted'
> empty
check_restricted 'print <> empty' || err_exit '<> file not restricted'
print 'echo hello' > script
chmod +x ./script
! check_restricted script || err_exit 'script without builtins should run in restricted mode'
check_restricted ./script || err_exit 'script with / in name should not run in restricted mode'
printf '%q hello\n' "$binecho" > script
! check_restricted script || err_exit 'script with pathnames should run in restricted mode'
print 'echo hello> file' > script
! check_restricted script || err_exit 'script with output redirection should run in restricted mode'
print 'PATH=/bin' > script
! check_restricted script || err_exit 'script with PATH assignment should run in restricted mode'
cat > script <<!
#! $SHELL
print hello
!
! check_restricted 'script;:' || err_exit 'script with #! pathname should run in restricted mode'
! check_restricted 'script' || err_exit 'script with #! pathname should run in restricted mode even if last command in script'
for i in PATH ENV FPATH
do check_restricted "function foo { typeset $i=foobar;};foo" || err_exit "$i can be changed in function by using typeset"
done
# ======
# `set +r` and `set +o restricted` should not unset the restricted option
check_restricted 'set +r' 2> /dev/null || err_exit '`set +r` unsets the restricted option'
check_restricted 'set +o restricted' 2> /dev/null || err_exit '`set +o restricted` unsets the restricted option'
# ======
exit $((Errors<125?Errors:125))