1/* $NetBSD: t_siglongjmp.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $ */
2
3/*
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__COPYRIGHT("@(#) Copyright (c) 2008\
31 The NetBSD Foundation, inc. All rights reserved.");
32__RCSID("$NetBSD: t_siglongjmp.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $");
33
34/*
35 * Regression test for siglongjmp out of a signal handler back into
36 * its thread.
37 *
38 * Written by Christian Limpach <cl@NetBSD.org>, December 2003.
39 * Public domain.
40 */
41
42#include <sys/resource.h>
43
44#include <pthread.h>
45#include <setjmp.h>
46#include <signal.h>
47#include <unistd.h>
48
49#include <atf-c.h>
50
51#include "h_common.h"
52
53static sigjmp_buf env;
54
55static void *
56thread(void *arg)
57{
58	return NULL;
59}
60
61static void
62handler(int sig, siginfo_t *info, void *ctx)
63{
64	siglongjmp(env, 1);
65}
66
67ATF_TC(siglongjmp1);
68ATF_TC_HEAD(siglongjmp1, tc)
69{
70	atf_tc_set_md_var(tc, "descr",
71		"Checks siglongjmp() out of a signal handler back into its thread");
72}
73ATF_TC_BODY(siglongjmp1, tc)
74{
75	pthread_t t;
76	sigset_t nset;
77	struct rlimit rlim;
78	struct sigaction act;
79
80	rlim.rlim_cur = rlim.rlim_max = 0;
81	(void)setrlimit(RLIMIT_CORE, &rlim);
82
83	PTHREAD_REQUIRE(pthread_create(&t, NULL, thread, NULL));
84
85	sigemptyset(&nset);
86	sigaddset(&nset, SIGUSR1);
87	PTHREAD_REQUIRE(pthread_sigmask(SIG_SETMASK, &nset, NULL));
88
89	act.sa_sigaction = handler;
90	sigemptyset(&act.sa_mask);
91	sigaddset(&act.sa_mask, SIGUSR2);
92	act.sa_flags = 0;
93	sigaction(SIGSEGV, &act, NULL);
94
95	ATF_REQUIRE_EQ(sigsetjmp(env, 1), 0);
96
97	PTHREAD_REQUIRE(pthread_sigmask(0, NULL, &nset));
98
99	ATF_REQUIRE_EQ_MSG(sigismember(&nset, SIGSEGV), 0, "SIGSEGV set");
100	ATF_REQUIRE_EQ_MSG(sigismember(&nset, SIGUSR2), 0, "SIGUSR2 set");
101	ATF_REQUIRE_MSG(sigismember(&nset, SIGUSR1), "SIGUSR1 not set");
102}
103
104ATF_TP_ADD_TCS(tp)
105{
106	ATF_TP_ADD_TC(tp, siglongjmp1);
107
108	return atf_no_error();
109}
110