1068ebf32SEnji Cooper /* $NetBSD: t_sigaction.c,v 1.5 2017/01/13 21:30:41 christos Exp $ */
257718be8SEnji Cooper
357718be8SEnji Cooper /*-
457718be8SEnji Cooper * Copyright (c) 2010 The NetBSD Foundation, Inc.
557718be8SEnji Cooper * All rights reserved.
657718be8SEnji Cooper *
757718be8SEnji Cooper * Redistribution and use in source and binary forms, with or without
857718be8SEnji Cooper * modification, are permitted provided that the following conditions
957718be8SEnji Cooper * are met:
1057718be8SEnji Cooper * 1. Redistributions of source code must retain the above copyright
1157718be8SEnji Cooper * notice, this list of conditions and the following disclaimer.
1257718be8SEnji Cooper * 2. Redistributions in binary form must reproduce the above copyright
1357718be8SEnji Cooper * notice, this list of conditions and the following disclaimer in the
1457718be8SEnji Cooper * documentation and/or other materials provided with the distribution.
1557718be8SEnji Cooper *
1657718be8SEnji Cooper * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1757718be8SEnji Cooper * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1857718be8SEnji Cooper * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1957718be8SEnji Cooper * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
2057718be8SEnji Cooper * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
2157718be8SEnji Cooper * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
2257718be8SEnji Cooper * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
2357718be8SEnji Cooper * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
2457718be8SEnji Cooper * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
2557718be8SEnji Cooper * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2657718be8SEnji Cooper * POSSIBILITY OF SUCH DAMAGE.
2757718be8SEnji Cooper */
2857718be8SEnji Cooper
2957718be8SEnji Cooper #include <sys/cdefs.h>
3057718be8SEnji Cooper __COPYRIGHT("@(#) Copyright (c) 2010\
3157718be8SEnji Cooper The NetBSD Foundation, inc. All rights reserved.");
32068ebf32SEnji Cooper __RCSID("$NetBSD: t_sigaction.c,v 1.5 2017/01/13 21:30:41 christos Exp $");
3357718be8SEnji Cooper
3457718be8SEnji Cooper #include <sys/wait.h>
3557718be8SEnji Cooper
3657718be8SEnji Cooper #include <signal.h>
3757718be8SEnji Cooper #include <stdbool.h>
3857718be8SEnji Cooper #include <stdlib.h>
3957718be8SEnji Cooper #include <string.h>
4057718be8SEnji Cooper #include <unistd.h>
4157718be8SEnji Cooper
4257718be8SEnji Cooper #include <atf-c.h>
4357718be8SEnji Cooper
443524bdafSEnji Cooper #include "h_macros.h"
4557718be8SEnji Cooper
463524bdafSEnji Cooper static bool handler_called = false;
473524bdafSEnji Cooper
483524bdafSEnji Cooper static void
handler(int signo __unused)4957718be8SEnji Cooper handler(int signo __unused)
5057718be8SEnji Cooper {
5157718be8SEnji Cooper handler_called = true;
5257718be8SEnji Cooper }
533524bdafSEnji Cooper
543524bdafSEnji Cooper static void
sa_resethand_child(const int flags)553524bdafSEnji Cooper sa_resethand_child(const int flags)
5657718be8SEnji Cooper {
573524bdafSEnji Cooper struct sigaction sa;
5857718be8SEnji Cooper
5957718be8SEnji Cooper sa.sa_flags = flags;
6057718be8SEnji Cooper sa.sa_handler = &handler;
6157718be8SEnji Cooper sigemptyset(&sa.sa_mask);
6257718be8SEnji Cooper
6357718be8SEnji Cooper sigaction(SIGUSR1, &sa, NULL);
6457718be8SEnji Cooper kill(getpid(), SIGUSR1);
6557718be8SEnji Cooper exit(handler_called ? EXIT_SUCCESS : EXIT_FAILURE);
6657718be8SEnji Cooper }
6757718be8SEnji Cooper
6857718be8SEnji Cooper static void
wait_and_check_child(const pid_t pid,const char * fail_message)6957718be8SEnji Cooper wait_and_check_child(const pid_t pid, const char *fail_message)
7057718be8SEnji Cooper {
7157718be8SEnji Cooper int status;
7257718be8SEnji Cooper
7357718be8SEnji Cooper (void)waitpid(pid, &status, 0);
7457718be8SEnji Cooper
7557718be8SEnji Cooper if (WIFEXITED(status))
7657718be8SEnji Cooper ATF_CHECK_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
7757718be8SEnji Cooper else
7857718be8SEnji Cooper atf_tc_fail("%s; raw exit status was %d", fail_message, status);
7957718be8SEnji Cooper }
8057718be8SEnji Cooper
8157718be8SEnji Cooper static void
catch(int sig __unused)8257718be8SEnji Cooper catch(int sig __unused)
8357718be8SEnji Cooper {
8457718be8SEnji Cooper return;
8557718be8SEnji Cooper }
8657718be8SEnji Cooper
8757718be8SEnji Cooper ATF_TC(sigaction_basic);
ATF_TC_HEAD(sigaction_basic,tc)8857718be8SEnji Cooper ATF_TC_HEAD(sigaction_basic, tc)
8957718be8SEnji Cooper {
903524bdafSEnji Cooper
913524bdafSEnji Cooper atf_tc_set_md_var(tc, "descr", "Checks for correct I&D cache"
923524bdafSEnji Cooper "synchronization after copying out the trampoline code.");
9357718be8SEnji Cooper }
943524bdafSEnji Cooper
ATF_TC_BODY(sigaction_basic,tc)9557718be8SEnji Cooper ATF_TC_BODY(sigaction_basic, tc)
9657718be8SEnji Cooper {
9757718be8SEnji Cooper static struct sigaction sa;
9857718be8SEnji Cooper
9957718be8SEnji Cooper sa.sa_handler = catch;
10057718be8SEnji Cooper
10157718be8SEnji Cooper sigaction(SIGUSR1, &sa, 0);
10257718be8SEnji Cooper kill(getpid(), SIGUSR1);
10357718be8SEnji Cooper atf_tc_pass();
10457718be8SEnji Cooper }
10557718be8SEnji Cooper
10657718be8SEnji Cooper ATF_TC(sigaction_noflags);
ATF_TC_HEAD(sigaction_noflags,tc)10757718be8SEnji Cooper ATF_TC_HEAD(sigaction_noflags, tc)
10857718be8SEnji Cooper {
10957718be8SEnji Cooper atf_tc_set_md_var(tc, "descr", "Checks programming a signal with "
11057718be8SEnji Cooper "sigaction(2) but without any flags");
11157718be8SEnji Cooper }
11257718be8SEnji Cooper
ATF_TC_BODY(sigaction_noflags,tc)11357718be8SEnji Cooper ATF_TC_BODY(sigaction_noflags, tc)
11457718be8SEnji Cooper {
11557718be8SEnji Cooper const pid_t pid = fork();
11657718be8SEnji Cooper if (pid == -1)
11757718be8SEnji Cooper atf_tc_fail_errno("fork(2) failed");
11857718be8SEnji Cooper else if (pid == 0)
11957718be8SEnji Cooper sa_resethand_child(0);
12057718be8SEnji Cooper else
12157718be8SEnji Cooper wait_and_check_child(pid, "Child process did not exit cleanly;"
12257718be8SEnji Cooper " it failed to process the signal");
12357718be8SEnji Cooper }
12457718be8SEnji Cooper
12557718be8SEnji Cooper ATF_TC(sigaction_resethand);
ATF_TC_HEAD(sigaction_resethand,tc)12657718be8SEnji Cooper ATF_TC_HEAD(sigaction_resethand, tc)
12757718be8SEnji Cooper {
12857718be8SEnji Cooper atf_tc_set_md_var(tc, "descr", "Checks that SA_RESETHAND works");
12957718be8SEnji Cooper }
13057718be8SEnji Cooper
ATF_TC_BODY(sigaction_resethand,tc)13157718be8SEnji Cooper ATF_TC_BODY(sigaction_resethand, tc)
13257718be8SEnji Cooper {
13357718be8SEnji Cooper const pid_t pid = fork();
13457718be8SEnji Cooper if (pid == -1)
13557718be8SEnji Cooper atf_tc_fail_errno("fork(2) failed");
13657718be8SEnji Cooper else if (pid == 0)
13757718be8SEnji Cooper sa_resethand_child(SA_RESETHAND);
13857718be8SEnji Cooper else {
13957718be8SEnji Cooper wait_and_check_child(pid, "Child process did not exit cleanly;"
14057718be8SEnji Cooper " it either failed to process the signal or SA_RESETHAND"
14157718be8SEnji Cooper " is broken");
14257718be8SEnji Cooper }
14357718be8SEnji Cooper }
14457718be8SEnji Cooper
ATF_TP_ADD_TCS(tp)14557718be8SEnji Cooper ATF_TP_ADD_TCS(tp)
14657718be8SEnji Cooper {
14757718be8SEnji Cooper
14857718be8SEnji Cooper ATF_TP_ADD_TC(tp, sigaction_basic);
14957718be8SEnji Cooper ATF_TP_ADD_TC(tp, sigaction_noflags);
15057718be8SEnji Cooper ATF_TP_ADD_TC(tp, sigaction_resethand);
15157718be8SEnji Cooper
15257718be8SEnji Cooper return atf_no_error();
15357718be8SEnji Cooper }
15457718be8SEnji Cooper