strace/tests/redirect-fds.test

#!/bin/sh
#
# Check that strace does not leak placeholder descriptors.
#
# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
# Copyright (c) 2016-2017 The strace developers.
# 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. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

. "${srcdir=.}/init.sh"

case "$STRACE" in
	*valgrind\ *--suppressions=*)
		skip_ 'incompatible with valgrind' ;;
esac

fd0="$LOG.fd0"
fd1="$LOG.fd1"
fd2="$LOG.fd2"

check_prog touch

check_fd()
{
	local a1 a2 a3
	a1="$1"
	a2="$2"
	a3="$3"

	rm -f "$LOG" "$fd0" "$fd1" "$fd2"
	touch "$LOG" "$fd0" ||
		framework_skip_ 'failed to create files'

	set -- "\"../$NAME\"" "\"$1\"" "\"$2\"" "\"$3\""
	eval "$@" "<${a1:-&-}" ">${a2:-&-}" "2>${a3:-&-}" ||
			fail_ "$* failed with code $rc"

	set -- "$STRACE" -o"$LOG" -echdir "$@"
	eval "$@" "<${a1:-&-}" ">${a2:-&-}" "2>${a3:-&-}" ||
		dump_log_and_fail_with "$* failed with code $?"
}

check_fd "$fd0" "$fd1" "$fd2"
check_fd ''     "$fd1" "$fd2"
check_fd "$fd0" ''     "$fd2"
check_fd "$fd0" "$fd1" ''
check_fd ''     ''     "$fd2"
check_fd ''     "$fd1" ''
check_fd "$fd0" ''     ''
check_fd ''     ''     ''