3 # Ensure that strace does not retain stdin and stdout descriptors.
5 # Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
8 # Redistribution and use in source and binary forms, with or without
9 # modification, are permitted provided that the following conditions
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.
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.
30 . "${srcdir=.}/init.sh"
32 run_prog_skip_if_failed \
43 if kill -0 $! 2> /dev/null; then
48 ) | $STRACE -qq -enone -esignal=none \
49 sh -c "exec <&- >&-; $SLEEP_A_BIT; $SLEEP_A_BIT"
51 if [ -s "$LOG" ]; then
52 fail_ "$STRACE failed to redirect standard input"
55 $STRACE -qq -enone -esignal=none \
56 sh -c "exec <&- >&-; $SLEEP_A_BIT; $SLEEP_A_BIT" |
60 if kill -0 $! 2> /dev/null; then
67 if [ -s "$LOG" ]; then
68 fail_ "$STRACE failed to redirect standard output"