30 lines
606 B
C
30 lines
606 B
C
/*
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* Check that the specified signal number is blocked/unblocked.
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*
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* Copyright (c) 2017-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#include <signal.h>
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#include <stdlib.h>
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int
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main(int ac, char **av)
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{
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if (ac != 3)
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error_msg_and_fail("usage: check_sigblock 0|1 signum");
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const int block = !!atoi(av[1]);
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const int signum = atoi(av[2]);
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sigset_t mask;
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sigemptyset(&mask);
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if (sigprocmask(SIG_SETMASK, NULL, &mask))
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perror_msg_and_fail("sigprocmask");
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return block ^ sigismember(&mask, signum);
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}
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