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/*
* Unblock, reset, and raise a signal.
*
* Copyright (c) 2017-2021 Dmitry V. Levin <ldv@strace.io>
* 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;
}
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