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 41 static bool fail; 42 static int count; 43 static void handler_err(int); 44 static void handler_ret(int); 45 static void handler_stress(int); 46 #ifdef __FreeBSD__ 47 static int sig[] = { SIGALRM, SIGIO, SIGUSR1, SIGUSR2 }; 48 #else 49 static int sig[] = { SIGALRM, SIGIO, SIGUSR1, SIGUSR2, SIGPWR }; 50 #endif 51 52 static void 53 handler_stress(int signo) 54 { 55 count++; 56 } 57 58 static void 59 handler_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 72 static void 73 handler_ret(int signo) 74 { 75 76 (void)sleep(1); 77 78 fail = false; 79 } 80 81 ATF_TC(raise_err); 82 ATF_TC_HEAD(raise_err, tc) 83 { 84 atf_tc_set_md_var(tc, "descr", "Test raise(3) for invalid parameters"); 85 } 86 87 ATF_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 99 ATF_TC(raise_ret); 100 ATF_TC_HEAD(raise_ret, tc) 101 { 102 atf_tc_set_md_var(tc, "descr", "Test return order of raise(3)"); 103 } 104 105 ATF_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 } 125 126 ATF_TC(raise_sig); 127 ATF_TC_HEAD(raise_sig, tc) 128 { 129 atf_tc_set_md_var(tc, "descr", "A basic test of raise(3)"); 130 } 131 132 ATF_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 } 160 161 ATF_TC(raise_stress); 162 ATF_TC_HEAD(raise_stress, tc) 163 { 164 atf_tc_set_md_var(tc, "descr", "A basic stress test with raise(3)"); 165 } 166 167 ATF_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 } 185 186 ATF_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