1/*	$NetBSD: t_raise.c,v 1.6 2016/11/03 22:08:31 kamil 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 Jukka Ruohonen.
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#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_raise.c,v 1.6 2016/11/03 22:08:31 kamil Exp $");
33
34#include <atf-c.h>
35
36#include <signal.h>
37#include <string.h>
38#include <time.h>
39#include <unistd.h>
40
41static bool	fail;
42static int	count;
43static void	handler_err(int);
44static void	handler_ret(int);
45static void	handler_stress(int);
46#ifdef __FreeBSD__
47static int	sig[] = { SIGALRM, SIGIO, SIGUSR1, SIGUSR2 };
48#else
49static int	sig[] = { SIGALRM, SIGIO, SIGUSR1, SIGUSR2, SIGPWR };
50#endif
51
52static void
53handler_stress(int signo)
54{
55	count++;
56}
57
58static void
59handler_err(int signo)
60{
61	size_t i;
62
63	for (i = 0; i < __arraycount(sig); i++) {
64
65		if (sig[i] == signo) {
66			fail = false;
67			break;
68		}
69	}
70}
71
72static void
73handler_ret(int signo)
74{
75
76	(void)sleep(1);
77
78	fail = false;
79}
80
81ATF_TC(raise_err);
82ATF_TC_HEAD(raise_err, tc)
83{
84	atf_tc_set_md_var(tc, "descr", "Test raise(3) for invalid parameters");
85}
86
87ATF_TC_BODY(raise_err, tc)
88{
89	int i = 0;
90
91	while (i < 10) {
92
93		ATF_REQUIRE(raise(10240 + i) == -1);
94
95		i++;
96	}
97}
98
99ATF_TC(raise_ret);
100ATF_TC_HEAD(raise_ret, tc)
101{
102	atf_tc_set_md_var(tc, "descr", "Test return order of raise(3)");
103}
104
105ATF_TC_BODY(raise_ret, tc)
106{
107	struct sigaction sa;
108
109	fail = true;
110
111	sa.sa_flags = 0;
112	sa.sa_handler = handler_ret;
113
114	/*
115	 * Verify that raise(3) does not return
116	 * before the signal handler returns.
117	 */
118	ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
119	ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
120	ATF_REQUIRE(raise(SIGUSR1) == 0);
121
122	if (fail != false)
123		atf_tc_fail("raise(3) returned before signal handler");
124}
125
126ATF_TC(raise_sig);
127ATF_TC_HEAD(raise_sig, tc)
128{
129	atf_tc_set_md_var(tc, "descr", "A basic test of raise(3)");
130}
131
132ATF_TC_BODY(raise_sig, tc)
133{
134	struct timespec tv, tr;
135	struct sigaction sa;
136	size_t i;
137
138	for (i = 0; i < __arraycount(sig); i++) {
139
140		(void)memset(&sa, 0, sizeof(struct sigaction));
141
142		fail = true;
143
144		tv.tv_sec = 0;
145		tv.tv_nsec = 2;
146
147		sa.sa_flags = 0;
148		sa.sa_handler = handler_err;
149
150		ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
151		ATF_REQUIRE(sigaction(sig[i], &sa, 0) == 0);
152
153		ATF_REQUIRE(raise(sig[i]) == 0);
154		ATF_REQUIRE(nanosleep(&tv, &tr) == 0);
155
156		if (fail != false)
157			atf_tc_fail("raise(3) did not raise a signal");
158	}
159}
160
161ATF_TC(raise_stress);
162ATF_TC_HEAD(raise_stress, tc)
163{
164	atf_tc_set_md_var(tc, "descr", "A basic stress test with raise(3)");
165}
166
167ATF_TC_BODY(raise_stress, tc)
168{
169	static const int maxiter = 1000 * 10;
170	struct sigaction sa;
171	int i;
172
173	sa.sa_flags = 0;
174	sa.sa_handler = handler_stress;
175
176	ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
177	ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
178
179	for (count = i = 0; i < maxiter; i++)
180		(void)raise(SIGUSR1);
181
182	if (count != maxiter)
183		atf_tc_fail("not all signals were caught");
184}
185
186ATF_TP_ADD_TCS(tp)
187{
188	ATF_TP_ADD_TC(tp, raise_err);
189	ATF_TP_ADD_TC(tp, raise_ret);
190	ATF_TP_ADD_TC(tp, raise_sig);
191	ATF_TP_ADD_TC(tp, raise_stress);
192
193	return atf_no_error();
194}
195