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1#!/bin/sh
2#
3# Check that strace does not leak placeholder descriptors.
4#
5# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13# 2. Redistributions in binary form must reproduce the above copyright
14#    notice, this list of conditions and the following disclaimer in the
15#    documentation and/or other materials provided with the distribution.
16# 3. The name of the author may not be used to endorse or promote products
17#    derived from this software without specific prior written permission.
18#
19# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30. "${srcdir=.}/init.sh"
31
32case "$STRACE" in
33	*valgrind\ *--suppressions=*)
34		skip_ 'incompatible with valgrind' ;;
35esac
36
37fd0="$LOG.fd0"
38fd1="$LOG.fd1"
39fd2="$LOG.fd2"
40
41check_prog touch
42
43check_fd()
44{
45	local a1 a2 a3
46	a1="$1"
47	a2="$2"
48	a3="$3"
49
50	touch "$LOG" "$fd0" ||
51		framework_skip_ 'failed to create files'
52
53	set -- "\"./$NAME\"" "\"$1\"" "\"$2\"" "\"$3\""
54	eval "$@" "<${a1:-&-}" ">${a2:-&-}" "2>${a3:-&-}" ||
55			fail_ "$* failed with code $rc"
56
57	set -- "$STRACE" -o"$LOG" -echdir "$@"
58	eval "$@" "<${a1:-&-}" ">${a2:-&-}" "2>${a3:-&-}" ||
59		dump_log_and_fail_with "$* failed with code $?"
60
61	rm -f "$LOG" "$fd0" "$fd1" "$fd2"
62}
63
64check_fd "$fd0" "$fd1" "$fd2"
65check_fd ''     "$fd1" "$fd2"
66check_fd "$fd0" ''     "$fd2"
67check_fd "$fd0" "$fd1" ''
68check_fd ''     ''     "$fd2"
69check_fd ''     "$fd1" ''
70check_fd "$fd0" ''     ''
71check_fd ''     ''     ''
72