1 /* $NetBSD: t_sigaction.c,v 1.2 2012/11/07 16:51:16 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 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) 2010\ 31 The NetBSD Foundation, inc. All rights reserved."); 32 __RCSID("$NetBSD: t_sigaction.c,v 1.2 2012/11/07 16:51:16 pgoyette Exp $"); 33 34 #include <sys/wait.h> 35 36 #include <signal.h> 37 #include <stdbool.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <unistd.h> 41 42 #include <atf-c.h> 43 #include <atf-c/config.h> 44 45 #ifdef __NetBSD__ 46 #include "../../../h_macros.h" 47 #else 48 #include "h_macros.h" 49 #endif 50 51 static bool handler_called = false; 52 53 static void 54 #ifdef __FreeBSD__ 55 handler(int signo __unused) 56 #else 57 handler(int signo) 58 #endif 59 { 60 handler_called = true; 61 } 62 63 static void 64 sa_resethand_child(const int flags) 65 { 66 struct sigaction sa; 67 68 sa.sa_flags = flags; 69 sa.sa_handler = &handler; 70 sigemptyset(&sa.sa_mask); 71 72 sigaction(SIGUSR1, &sa, NULL); 73 kill(getpid(), SIGUSR1); 74 exit(handler_called ? EXIT_SUCCESS : EXIT_FAILURE); 75 } 76 77 static void 78 wait_and_check_child(const pid_t pid, const char *fail_message) 79 { 80 int status; 81 82 (void)waitpid(pid, &status, 0); 83 84 if (WIFEXITED(status)) 85 ATF_CHECK_EQ(EXIT_SUCCESS, WEXITSTATUS(status)); 86 else 87 atf_tc_fail("%s; raw exit status was %d", fail_message, status); 88 } 89 90 static void 91 #ifdef __FreeBSD__ 92 catch(int sig __unused) 93 #else 94 catch(int sig) 95 #endif 96 { 97 return; 98 } 99 100 ATF_TC(sigaction_basic); 101 ATF_TC_HEAD(sigaction_basic, tc) 102 { 103 104 atf_tc_set_md_var(tc, "descr", "Checks for correct I&D cache" 105 "synchronization after copying out the trampoline code."); 106 } 107 108 ATF_TC_BODY(sigaction_basic, tc) 109 { 110 static struct sigaction sa; 111 112 sa.sa_handler = catch; 113 114 sigaction(SIGUSR1, &sa, 0); 115 kill(getpid(), SIGUSR1); 116 atf_tc_pass(); 117 } 118 119 ATF_TC(sigaction_noflags); 120 ATF_TC_HEAD(sigaction_noflags, tc) 121 { 122 atf_tc_set_md_var(tc, "descr", "Checks programming a signal with " 123 "sigaction(2) but without any flags"); 124 } 125 126 ATF_TC_BODY(sigaction_noflags, tc) 127 { 128 const pid_t pid = fork(); 129 if (pid == -1) 130 atf_tc_fail_errno("fork(2) failed"); 131 else if (pid == 0) 132 sa_resethand_child(0); 133 else 134 wait_and_check_child(pid, "Child process did not exit cleanly;" 135 " it failed to process the signal"); 136 } 137 138 ATF_TC(sigaction_resethand); 139 ATF_TC_HEAD(sigaction_resethand, tc) 140 { 141 atf_tc_set_md_var(tc, "descr", "Checks that SA_RESETHAND works"); 142 } 143 144 ATF_TC_BODY(sigaction_resethand, tc) 145 { 146 const pid_t pid = fork(); 147 if (pid == -1) 148 atf_tc_fail_errno("fork(2) failed"); 149 else if (pid == 0) 150 sa_resethand_child(SA_RESETHAND); 151 else { 152 wait_and_check_child(pid, "Child process did not exit cleanly;" 153 " it either failed to process the signal or SA_RESETHAND" 154 " is broken"); 155 } 156 } 157 158 ATF_TP_ADD_TCS(tp) 159 { 160 161 ATF_TP_ADD_TC(tp, sigaction_basic); 162 ATF_TP_ADD_TC(tp, sigaction_noflags); 163 ATF_TP_ADD_TC(tp, sigaction_resethand); 164 165 return atf_no_error(); 166 } 167