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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 (at] altlinux.org>
      6 # Copyright (c) 2016-2017 The strace developers.
      7 # All rights reserved.
      8 #
      9 # Redistribution and use in source and binary forms, with or without
     10 # modification, are permitted provided that the following conditions
     11 # are met:
     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.
     19 #
     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.
     30 
     31 . "${srcdir=.}/init.sh"
     32 
     33 case "$STRACE" in
     34 	*valgrind\ *--suppressions=*)
     35 		skip_ 'incompatible with valgrind' ;;
     36 esac
     37 
     38 fd0="$LOG.fd0"
     39 fd1="$LOG.fd1"
     40 fd2="$LOG.fd2"
     41 
     42 check_prog touch
     43 
     44 check_fd()
     45 {
     46 	local a1 a2 a3
     47 	a1="$1"
     48 	a2="$2"
     49 	a3="$3"
     50 
     51 	rm -f "$LOG" "$fd0" "$fd1" "$fd2"
     52 	touch "$LOG" "$fd0" ||
     53 		framework_skip_ 'failed to create files'
     54 
     55 	set -- "\"../$NAME\"" "\"$1\"" "\"$2\"" "\"$3\""
     56 	eval "$@" "<${a1:-&-}" ">${a2:-&-}" "2>${a3:-&-}" ||
     57 			fail_ "$* failed with code $rc"
     58 
     59 	set -- "$STRACE" -o"$LOG" -echdir "$@"
     60 	eval "$@" "<${a1:-&-}" ">${a2:-&-}" "2>${a3:-&-}" ||
     61 		dump_log_and_fail_with "$* failed with code $?"
     62 }
     63 
     64 check_fd "$fd0" "$fd1" "$fd2"
     65 check_fd ''     "$fd1" "$fd2"
     66 check_fd "$fd0" ''     "$fd2"
     67 check_fd "$fd0" "$fd1" ''
     68 check_fd ''     ''     "$fd2"
     69 check_fd ''     "$fd1" ''
     70 check_fd "$fd0" ''     ''
     71 check_fd ''     ''     ''
     72