99 lines
2.7 KiB
C
99 lines
2.7 KiB
C
/* $NetBSD: t_open_pr_57260.c,v 1.2 2023/04/23 00:46:46 gutteridge Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2023 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Taylor R. Campbell and David H. Gutteridge.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__RCSID("$NetBSD: t_open_pr_57260.c,v 1.2 2023/04/23 00:46:46 gutteridge Exp $");
|
|
|
|
#include <sys/stat.h>
|
|
|
|
#include <fcntl.h>
|
|
#include <setjmp.h>
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
|
|
#include <atf-c.h>
|
|
#include "h_macros.h"
|
|
|
|
static jmp_buf env;
|
|
static sig_atomic_t alarmed = 0;
|
|
|
|
static void
|
|
on_alarm(int sig)
|
|
{
|
|
|
|
if (!alarmed) {
|
|
alarmed = 1;
|
|
alarm(1);
|
|
} else {
|
|
longjmp(env, 1);
|
|
}
|
|
}
|
|
|
|
ATF_TC(openrestartsignal);
|
|
ATF_TC_HEAD(openrestartsignal, tc)
|
|
{
|
|
|
|
atf_tc_set_md_var(tc, "descr", "open(2) should restart on signal "
|
|
"(PR kern/57260)");
|
|
}
|
|
|
|
ATF_TC_BODY(openrestartsignal, tc)
|
|
{
|
|
struct sigaction sa;
|
|
int fd;
|
|
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_handler = on_alarm;
|
|
(void)sigfillset(&sa.sa_mask);
|
|
sa.sa_flags = SA_RESTART;
|
|
if (sigaction(SIGALRM, &sa, NULL) == -1)
|
|
atf_tc_fail_errno("sigaction");
|
|
|
|
if (mkfifo("fifo", 0600) == -1)
|
|
atf_tc_fail_errno("mkfifo");
|
|
alarm(1);
|
|
if (setjmp(env))
|
|
/* second signal handler longjmped out */
|
|
return;
|
|
fd = open("fifo", O_RDONLY);
|
|
if (fd == -1)
|
|
atf_tc_fail_errno("open");
|
|
atf_tc_fail("open returned %d", fd);
|
|
}
|
|
|
|
ATF_TP_ADD_TCS(tp)
|
|
{
|
|
|
|
ATF_TP_ADD_TC(tp, openrestartsignal);
|
|
|
|
return atf_no_error();
|
|
}
|