1 /* $NetBSD: t_sigqueue.c,v 1.4 2011/07/07 16:31:11 jruoho Exp $ */
2 
3 /*-
4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Christos Zoulas.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 __RCSID("$NetBSD: t_sigqueue.c,v 1.4 2011/07/07 16:31:11 jruoho Exp $");
34 
35 
36 #include <atf-c.h>
37 #include <errno.h>
38 #include <signal.h>
39 #include <stdlib.h>
40 #include <sched.h>
41 #include <unistd.h>
42 
43 static void	handler(int, siginfo_t *, void *);
44 
45 #define VALUE (int)0xc001dad1
46 static int value;
47 
48 static void
49 #ifdef __FreeBSD__
50 handler(int signo __unused, siginfo_t *info __unused, void *data __unused)
51 #else
52 handler(int signo, siginfo_t *info, void *data)
53 #endif
54 {
55 	value = info->si_value.sival_int;
56 	kill(0, SIGINFO);
57 }
58 
59 ATF_TC(sigqueue_basic);
60 ATF_TC_HEAD(sigqueue_basic, tc)
61 {
62 	atf_tc_set_md_var(tc, "descr", "Checks sigqueue(3) sigval delivery");
63 }
64 
65 ATF_TC_BODY(sigqueue_basic, tc)
66 {
67 	struct sigaction sa;
68 	union sigval sv;
69 
70 	sa.sa_sigaction = handler;
71 	sigemptyset(&sa.sa_mask);
72 	sa.sa_flags = SA_SIGINFO;
73 
74 	if (sigaction(SIGUSR1, &sa, NULL) != 0)
75 		atf_tc_fail("sigaction failed");
76 
77 	sv.sival_int = VALUE;
78 
79 #ifdef __FreeBSD__
80 	/*
81 	 * From kern_sig.c:
82 	 * Specification says sigqueue can only send signal to single process.
83 	 */
84 	if (sigqueue(getpid(), SIGUSR1, sv) != 0)
85 #else
86 	if (sigqueue(0, SIGUSR1, sv) != 0)
87 #endif
88 		atf_tc_fail("sigqueue failed");
89 
90 	sched_yield();
91 	ATF_REQUIRE_EQ(sv.sival_int, value);
92 }
93 
94 ATF_TC(sigqueue_err);
95 ATF_TC_HEAD(sigqueue_err, tc)
96 {
97 	atf_tc_set_md_var(tc, "descr", "Test errors from sigqueue(3)");
98 }
99 
100 ATF_TC_BODY(sigqueue_err, tc)
101 {
102 	union sigval sv;
103 
104 	errno = 0;
105 	ATF_REQUIRE_ERRNO(EINVAL, sigqueue(getpid(), -1, sv) == -1);
106 }
107 
108 ATF_TP_ADD_TCS(tp)
109 {
110 
111 	ATF_TP_ADD_TC(tp, sigqueue_basic);
112 	ATF_TP_ADD_TC(tp, sigqueue_err);
113 
114 	return atf_no_error();
115 }
116