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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 # 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 . "${srcdir=.}/init.sh"
     31 
     32 case "$STRACE" in
     33 	*valgrind\ *--suppressions=*)
     34 		skip_ 'incompatible with valgrind' ;;
     35 esac
     36 
     37 fd0="$LOG.fd0"
     38 fd1="$LOG.fd1"
     39 fd2="$LOG.fd2"
     40 
     41 check_prog touch
     42 
     43 check_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" "$fd2"
     62 }
     63 
     64 check_fd "$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