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/*
* Check that the specified signal number is blocked/unblocked.
*
* 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>
int
main(int ac, char **av)
{
if (ac != 3)
error_msg_and_fail("usage: check_sigblock 0|1 signum");
const int block = !!atoi(av[1]);
const int signum = atoi(av[2]);
sigset_t mask;
sigemptyset(&mask);
if (sigprocmask(SIG_SETMASK, NULL, &mask))
perror_msg_and_fail("sigprocmask");
return block ^ sigismember(&mask, signum);
}
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