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