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/*
* Check fault injection along with signal injection.
*
* 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 <unistd.h>
#include <sys/stat.h>
#include <asm/unistd.h>
static struct stat before, after;
static void
handler(int sig)
{
if (stat(".", &after))
syscall(__NR_exit_group, 2);
if (before.st_dev != after.st_dev || before.st_ino != after.st_ino)
syscall(__NR_exit_group, 3);
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");
if (stat(".", &before))
perror_msg_and_fail("stat");
syscall(__NR_chdir, ".");
syscall(__NR_exit_group, 1);
return 1;
}
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