strace/tests/list_sigaction_signum.c

38 lines
764 B
C

/*
* List signal numbers that are valid arguments for sigaction syscall.
*
* Copyright (c) 2017-2018 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <signal.h>
#include <stdio.h>
int
main(void)
{
unsigned int i;
for (i = 1; i < 32; ++i) {
static const struct sigaction ign = { .sa_handler = SIG_IGN };
static const struct sigaction dfl = { .sa_handler = SIG_DFL };
struct sigaction act;
if (sigaction(i, &ign, NULL) ||
sigaction(i, NULL, &act) ||
ign.sa_handler != act.sa_handler ||
sigaction(i, &dfl, NULL) ||
sigaction(i, NULL, &act) ||
dfl.sa_handler != act.sa_handler)
continue;
printf("%u\n", i);
}
return 0;
}