strace/tests/unblock_reset_raise.c
Dmitry V. Levin c6782f144a tests: change the license to GPL-2.0-or-later
strace test suite is now provided under the terms of the GNU General
Public License version 2 or later, see tests/COPYING for more details.
2018-12-10 00:00:00 +00:00

35 lines
744 B
C

/*
* Unblock, reset, and raise a signal.
*
* Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
int
main(int ac, char **av)
{
if (ac != 2)
error_msg_and_fail("usage: unblock_raise signo");
sigset_t mask;
sigemptyset(&mask);
const int signo = atoi(av[1]);
if (sigaddset(&mask, signo))
perror_msg_and_fail("sigaddset: %s", av[1]);
if (sigprocmask(SIG_UNBLOCK, &mask, NULL))
perror_msg_and_fail("sigprocmask");
if (signal(signo, SIG_DFL) == SIG_ERR)
perror_msg_and_fail("signal: %s", av[1]);
if (raise(signo))
perror_msg_and_fail("raise: %s", av[1]);
return 0;
}