#!/bin/sh
#
# Check how strace -e signal=set works.
#
# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

. "${srcdir=.}/init.sh"

test_one_sig()
{
	local sigs
	sigs="$1"; shift

	run_prog "./$NAME" "$@" > /dev/null
	run_strace -e trace=none -e signal="$sigs" "./$NAME" "$@" > "$EXP"
	match_diff "$LOG" "$EXP"
	rm -f "$EXP"
}

test_sigs()
{
	local first second sigs
	first="$1"; shift
	second="$1"; shift

	for sigs; do
		test_one_sig "$sigs" 2 "$first" 15 "$second"
	done
}

test_sigs '' '' \
	none '!all' \
	CHLD SIGCHLD ALRM SIGALRM \
	chld sigchld alrm sigalrm \
	CHLD,SIGALRM ALRM,SIGCHLD \
	chld,sigalrm alrm,sigchld \
	9 9,4 9,4,11 \
	4,CHLD,11,ALRM,9 \
	'!2,15' '!INT,TERM' '!SIGINT,TERM' '!INT,SIGTERM' '!SIGTERM,SIGINT' \
	'!2,INT,TERM' '!2,SIGTERM' '!SIGINT,15' '!INT,SIGTERM,15' \
	'!2,4,15' '!15,9,2,11,4'

test_sigs SIGINT '' \
	2 INT SIGINT \
	CHLD,SIGINT SIGINT,SIGALRM \
	chld,sigint sigint,sigalrm \
	ALRM,2,SIGCHLD \
	'!15' '!TERM' '!SIGTERM' \
	'!15,TERM' '!SIGTERM,15,TERM' \
	'!SIGALRM,TERM' '!CHLD,SIGTERM' \
	'!ALRM,15' '!SIGCHLD,ALRM,SIGTERM,KILL' \
	'!4,15' '!15,9,11,4'

test_sigs '' SIGTERM \
	15 TERM SIGTERM \
	CHLD,SIGTERM SIGTERM,SIGALRM \
	chld,sigterm sigterm,sigalrm \
	ALRM,15,SIGCHLD \
	'!2' '!INT' '!SIGINT' \
	'!2,INT' '!SIGINT,2,INT' \
	'!SIGALRM,INT' '!CHLD,SIGINT' \
	'!ALRM,2' '!SIGCHLD,ALRM,SIGINT,KILL' \
	'!4,2' '!2,9,11,4'

test_sigs SIGINT SIGTERM \
	all '!none' \
	INT,TERM SIGINT,TERM SIGTERM,INT SIGINT,SIGTERM \
	int,term sigint,term sigterm,int sigint,sigterm \
	2,15 2,TERM SIGTERM,2 TERM,15,SIGINT,2 \
	'!CHLD' '!SIGCHLD' '!ALRM' '!SIGALRM' \
	'!CHLD,SIGALRM' '!ALRM,SIGCHLD' \
	'!9' '!9,4' '!9,4,11' '!4,CHLD,11,ALRM,9'

fail_with()
{
	dump_log_and_fail_with \
		"strace -e signal=$* failed to handle an argument error properly"
}

for arg in ' ' invalid_signal_name SIG -1 256 1-1 \
	   1,2,4,8,16,32,64,128,256,512,1024 9,chdir; do
	$STRACE -e signal="$arg" true 2> "$LOG" &&
		fail_with "$arg"
	LC_ALL=C grep -F 'invalid signal' < "$LOG" > /dev/null ||
		fail_with "$arg"
done

exit 0