# Check that zgrep is terminated gracefully by signal when
# its grep/sed pipeline is terminated by a signal.
-# Copyright (C) 2010-2011 Free Software Foundation, Inc.
+# Copyright (C) 2010-2013 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
echo a | gzip -c > f.gz || framework_failure_
-if (trap - PIPE) >/dev/null 2>&1; then
- trap - PIPE
-else
- trap 13
-fi
-st=$(exec 3>&1; (cat f.gz f.gz; echo $? >&3) | :)
-test "$st" = 141 || framework_failure_ 'signal handling busted on this host'
+test "x$PERL" = x && PERL=perl
+("$PERL" -e 'use warnings') >/dev/null 2>&1 || skip_ "no suitable perl found"
+
+exec_with_SIGPIPE_SIG_DFL () {
+ program=${1?}
+ shift
+ args=
+ for arg; do
+ args="$args, '$arg'"
+ done
+ "$PERL" -e "\$SIG{PIPE} = 'DEFAULT'; exec '$program'$args"
+}
+
+write_to_dangling_pipe () {
+ exec 3>&1
+ (
+ exec_with_SIGPIPE_SIG_DFL "$@"
+ echo $? >&3
+ ) | : || framework_failure_
+}
+
+signal_status=$(write_to_dangling_pipe cat f.gz f.gz)
+test 128 -lt $signal_status ||
+ framework_failure_ 'signal handling busted on this host'
fail=0
-st=$(exec 3>&1; (zgrep a f.gz f.gz; echo $? >&3) | :) || framework_failure_
+st=$(write_to_dangling_pipe zgrep a f.gz f.gz)
-test "$st" = 141 || fail=1
+test $st = $signal_status || fail=1
Exit $fail