1 /* $NetBSD: t_setjmp.c,v 1.2 2017/01/14 21:08:17 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 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 /* 30 * Copyright (c) 1994 Christopher G. Demetriou 31 * All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. All advertising materials mentioning features or use of this software 42 * must display the following acknowledgement: 43 * This product includes software developed for the 44 * NetBSD Project. See http://www.NetBSD.org/ for 45 * information about NetBSD. 46 * 4. The name of the author may not be used to endorse or promote products 47 * derived from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 50 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 51 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 52 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 53 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 54 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 55 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 58 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 59 * 60 * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>> 61 */ 62 63 #include <sys/cdefs.h> 64 __COPYRIGHT("@(#) Copyright (c) 2008\ 65 The NetBSD Foundation, inc. All rights reserved."); 66 __RCSID("$NetBSD: t_setjmp.c,v 1.2 2017/01/14 21:08:17 christos Exp $"); 67 68 #include <sys/types.h> 69 70 #include <errno.h> 71 #include <setjmp.h> 72 #include <signal.h> 73 #include <stdbool.h> 74 #include <stdio.h> 75 #include <stdlib.h> 76 #include <string.h> 77 #include <unistd.h> 78 79 #include <atf-c.h> 80 81 #define REQUIRE_ERRNO(x) ATF_REQUIRE_MSG(x, "%s", strerror(errno)) 82 83 #define TEST_SETJMP 0 84 #define TEST_U_SETJMP 1 85 #define TEST_SIGSETJMP_SAVE 2 86 #define TEST_SIGSETJMP_NOSAVE 3 87 #define TEST_LONGJMP_ZERO 4 88 #define TEST_U_LONGJMP_ZERO 5 89 90 static int expectsignal; 91 92 static void 93 aborthandler(int signo __unused) 94 { 95 ATF_REQUIRE_MSG(expectsignal, "kill(SIGABRT) succeeded"); 96 atf_tc_pass(); 97 } 98 99 static void 100 h_check(int test) 101 { 102 struct sigaction sa; 103 jmp_buf jb; 104 sigjmp_buf sjb; 105 sigset_t ss; 106 int i, x; 107 volatile bool did_longjmp; 108 109 i = getpid(); 110 did_longjmp = false; 111 112 if (test == TEST_SETJMP || test == TEST_SIGSETJMP_SAVE || 113 test == TEST_LONGJMP_ZERO) 114 expectsignal = 0; 115 else if (test == TEST_U_SETJMP || test == TEST_SIGSETJMP_NOSAVE || 116 test == TEST_U_LONGJMP_ZERO) 117 expectsignal = 1; 118 else 119 atf_tc_fail("unknown test"); 120 121 sa.sa_handler = aborthandler; 122 sigemptyset(&sa.sa_mask); 123 sa.sa_flags = 0; 124 REQUIRE_ERRNO(sigaction(SIGABRT, &sa, NULL) != -1); 125 REQUIRE_ERRNO(sigemptyset(&ss) != -1); 126 REQUIRE_ERRNO(sigaddset(&ss, SIGABRT) != -1); 127 REQUIRE_ERRNO(sigprocmask(SIG_BLOCK, &ss, NULL) != -1); 128 129 if (test == TEST_SETJMP || test == TEST_LONGJMP_ZERO) 130 x = setjmp(jb); 131 else if (test == TEST_U_SETJMP || test == TEST_U_LONGJMP_ZERO) 132 x = _setjmp(jb); 133 else 134 x = sigsetjmp(sjb, !expectsignal); 135 136 if (x != 0) { 137 if (test == TEST_LONGJMP_ZERO || test == TEST_U_LONGJMP_ZERO) 138 ATF_REQUIRE_MSG(x == 1, "setjmp returned wrong value"); 139 else 140 ATF_REQUIRE_MSG(x == i, "setjmp returned wrong value"); 141 142 kill(i, SIGABRT); 143 ATF_REQUIRE_MSG(!expectsignal, "kill(SIGABRT) failed"); 144 atf_tc_pass(); 145 } else if (did_longjmp) { 146 atf_tc_fail("setjmp returned zero after longjmp"); 147 } 148 149 REQUIRE_ERRNO(sigprocmask(SIG_UNBLOCK, &ss, NULL) != -1); 150 151 did_longjmp = true; 152 if (test == TEST_SETJMP) 153 longjmp(jb, i); 154 else if (test == TEST_LONGJMP_ZERO) 155 longjmp(jb, 0); 156 else if (test == TEST_U_SETJMP) 157 _longjmp(jb, i); 158 else if (test == TEST_U_LONGJMP_ZERO) 159 _longjmp(jb, 0); 160 else 161 siglongjmp(sjb, i); 162 163 atf_tc_fail("jmp failed"); 164 } 165 166 ATF_TC(setjmp); 167 ATF_TC_HEAD(setjmp, tc) 168 { 169 atf_tc_set_md_var(tc, "descr", "Checks setjmp(3)"); 170 } 171 ATF_TC_BODY(setjmp, tc) 172 { 173 h_check(TEST_SETJMP); 174 } 175 176 ATF_TC(_setjmp); 177 ATF_TC_HEAD(_setjmp, tc) 178 { 179 atf_tc_set_md_var(tc, "descr", "Checks _setjmp(3)"); 180 } 181 ATF_TC_BODY(_setjmp, tc) 182 { 183 h_check(TEST_U_SETJMP); 184 } 185 186 ATF_TC(sigsetjmp_save); 187 ATF_TC_HEAD(sigsetjmp_save, tc) 188 { 189 atf_tc_set_md_var(tc, "descr", "Checks sigsetjmp(3) with savemask enabled"); 190 } 191 ATF_TC_BODY(sigsetjmp_save, tc) 192 { 193 h_check(TEST_SIGSETJMP_SAVE); 194 } 195 196 ATF_TC(sigsetjmp_nosave); 197 ATF_TC_HEAD(sigsetjmp_nosave, tc) 198 { 199 atf_tc_set_md_var(tc, "descr", "Checks sigsetjmp(3) with savemask disabled"); 200 } 201 ATF_TC_BODY(sigsetjmp_nosave, tc) 202 { 203 h_check(TEST_SIGSETJMP_NOSAVE); 204 } 205 206 ATF_TC(longjmp_zero); 207 ATF_TC_HEAD(longjmp_zero, tc) 208 { 209 atf_tc_set_md_var(tc, "descr", "Checks longjmp(3) with a zero value"); 210 } 211 ATF_TC_BODY(longjmp_zero, tc) 212 { 213 h_check(TEST_LONGJMP_ZERO); 214 } 215 216 ATF_TC(_longjmp_zero); 217 ATF_TC_HEAD(_longjmp_zero, tc) 218 { 219 atf_tc_set_md_var(tc, "descr", "Checks _longjmp(3) with a zero value"); 220 } 221 ATF_TC_BODY(_longjmp_zero, tc) 222 { 223 h_check(TEST_U_LONGJMP_ZERO); 224 } 225 226 ATF_TP_ADD_TCS(tp) 227 { 228 ATF_TP_ADD_TC(tp, setjmp); 229 ATF_TP_ADD_TC(tp, _setjmp); 230 ATF_TP_ADD_TC(tp, sigsetjmp_save); 231 ATF_TP_ADD_TC(tp, sigsetjmp_nosave); 232 ATF_TP_ADD_TC(tp, longjmp_zero); 233 ATF_TP_ADD_TC(tp, _longjmp_zero); 234 235 return atf_no_error(); 236 } 237