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
53 static sigjmp_buf env;
54
55 static void *
thread(void * arg)56 thread(void *arg)
57 {
58 return NULL;
59 }
60
61 static void
handler(int sig,siginfo_t * info,void * ctx)62 handler(int sig, siginfo_t *info, void *ctx)
63 {
64 siglongjmp(env, 1);
65 }
66
67 ATF_TC(siglongjmp1);
ATF_TC_HEAD(siglongjmp1,tc)68 ATF_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 }
ATF_TC_BODY(siglongjmp1,tc)73 ATF_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
ATF_TP_ADD_TCS(tp)104 ATF_TP_ADD_TCS(tp)
105 {
106 ATF_TP_ADD_TC(tp, siglongjmp1);
107
108 return atf_no_error();
109 }
110