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/*
* Check that signal injection works properly.
*
* Copyright (c) 2017-2018 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2017-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <signal.h>
#include <unistd.h>
#include "scno.h"
static void
handler(int sig)
{
syscall(__NR_exit_group, 0);
}
int
main(void)
{
const struct sigaction act = { .sa_handler = handler };
if (sigaction(SIGUSR1, &act, NULL))
perror_msg_and_fail("sigaction");
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGUSR1);
if (sigprocmask(SIG_UNBLOCK, &mask, NULL))
perror_msg_and_fail("sigprocmask");
syscall(__NR_chdir, ".");
syscall(__NR_exit_group, 1);
return 1;
}
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