3 # Ensure that strace does not retain stdin and stdout descriptors.
5 # Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
6 # Copyright (c) 2016-2017 The strace developers.
9 # Redistribution and use in source and binary forms, with or without
10 # modification, are permitted provided that the following conditions
12 # 1. Redistributions of source code must retain the above copyright
13 # notice, this list of conditions and the following disclaimer.
14 # 2. Redistributions in binary form must reproduce the above copyright
15 # notice, this list of conditions and the following disclaimer in the
16 # documentation and/or other materials provided with the distribution.
17 # 3. The name of the author may not be used to endorse or promote products
18 # derived from this software without specific prior written permission.
20 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 . "${srcdir=.}/init.sh"
33 run_prog_skip_if_failed \
42 while [ -f "$LOG" ]; do
47 if kill -0 $! 2> /dev/null; then
50 echo TIMEOUT >> "$OUT"
52 ) | $STRACE -qq -enone -esignal=none \
53 sh -c "exec <&- >&-; rm -f -- $LOG; $SLEEP_A_BIT; $SLEEP_A_BIT"
55 if [ -s "$OUT" ]; then
56 fail_ "$STRACE failed to redirect standard input"
60 $STRACE -qq -enone -esignal=none \
61 sh -c "exec <&- >&-; rm -f -- $LOG; $SLEEP_A_BIT; $SLEEP_A_BIT" |
63 while [ -f "$LOG" ]; do
68 if kill -0 $! 2> /dev/null; then
71 echo TIMEOUT >> "$OUT"
75 if [ -s "$OUT" ]; then
76 fail_ "$STRACE failed to redirect standard output"