1 /* $NetBSD: t_wait.c,v 1.8 2017/01/13 19:28:55 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2016 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 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_wait.c,v 1.8 2017/01/13 19:28:55 christos Exp $"); 33 34 #ifdef __FreeBSD__ 35 #include <sys/types.h> 36 #include <sys/sysctl.h> 37 #endif 38 #include <sys/wait.h> 39 #include <sys/resource.h> 40 41 #include <errno.h> 42 #include <inttypes.h> 43 #include <limits.h> 44 #include <pwd.h> 45 #include <signal.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <unistd.h> 49 50 #include <atf-c.h> 51 52 ATF_TC(wait6_invalid); 53 ATF_TC_HEAD(wait6_invalid, tc) 54 { 55 atf_tc_set_md_var(tc, "descr", 56 "Test that wait6(2) returns EINVAL with 0 options"); 57 } 58 59 ATF_TC_BODY(wait6_invalid, tc) 60 { 61 siginfo_t si; 62 struct wrusage wru; 63 int st; 64 ATF_REQUIRE(wait6(P_ALL, 0, &st, 0, &wru, &si) == -1 65 && errno == EINVAL); 66 } 67 68 ATF_TC(wait6_exited); 69 ATF_TC_HEAD(wait6_exited, tc) 70 { 71 atf_tc_set_md_var(tc, "descr", 72 "Test that wait6(2) handled exiting process and code"); 73 } 74 75 ATF_TC_BODY(wait6_exited, tc) 76 { 77 siginfo_t si; 78 struct wrusage wru; 79 int st; 80 pid_t pid; 81 82 switch (pid = fork()) { 83 case -1: 84 ATF_REQUIRE(pid > 0); 85 case 0: 86 exit(0x5a5a5a5a); 87 /*NOTREACHED*/ 88 default: 89 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid); 90 ATF_REQUIRE(WIFEXITED(st) && WEXITSTATUS(st) == 0x5a); 91 ATF_REQUIRE(si.si_status == 0x5a5a5a5a); 92 ATF_REQUIRE(si.si_pid == pid); 93 ATF_REQUIRE(si.si_uid == getuid()); 94 ATF_REQUIRE(si.si_code == CLD_EXITED); 95 #ifdef __NetBSD__ 96 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime, 97 (uintmax_t)si.si_utime); 98 #endif 99 break; 100 } 101 } 102 103 ATF_TC(wait6_terminated); 104 ATF_TC_HEAD(wait6_terminated, tc) 105 { 106 atf_tc_set_md_var(tc, "descr", 107 "Test that wait6(2) handled terminated process and code"); 108 } 109 110 ATF_TC_BODY(wait6_terminated, tc) 111 { 112 siginfo_t si; 113 struct wrusage wru; 114 int st; 115 pid_t pid; 116 117 switch (pid = fork()) { 118 case 0: 119 sleep(100); 120 /*FALLTHROUGH*/ 121 case -1: 122 ATF_REQUIRE(pid > 0); 123 default: 124 ATF_REQUIRE(kill(pid, SIGTERM) == 0); 125 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid); 126 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGTERM); 127 ATF_REQUIRE(si.si_status == SIGTERM); 128 ATF_REQUIRE(si.si_pid == pid); 129 ATF_REQUIRE(si.si_uid == getuid()); 130 ATF_REQUIRE(si.si_code == CLD_KILLED); 131 #ifdef __NetBSD__ 132 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime, 133 (uintmax_t)si.si_utime); 134 #endif 135 break; 136 } 137 } 138 139 ATF_TC(wait6_coredumped); 140 ATF_TC_HEAD(wait6_coredumped, tc) 141 { 142 atf_tc_set_md_var(tc, "descr", 143 "Test that wait6(2) handled coredumped process and code"); 144 } 145 146 ATF_TC_BODY(wait6_coredumped, tc) 147 { 148 siginfo_t si; 149 struct wrusage wru; 150 int st; 151 pid_t pid; 152 static const struct rlimit rl = { RLIM_INFINITY, RLIM_INFINITY }; 153 154 #ifdef __FreeBSD__ 155 int coredump_enabled; 156 size_t ce_len = sizeof(coredump_enabled); 157 if (sysctlbyname("kern.coredump", &coredump_enabled, &ce_len, NULL, 158 0) == 0 && !coredump_enabled) 159 atf_tc_skip("Coredumps disabled"); 160 #endif 161 162 switch (pid = fork()) { 163 case 0: 164 ATF_REQUIRE(setrlimit(RLIMIT_CORE, &rl) == 0); 165 *(char *)8 = 0; 166 /*FALLTHROUGH*/ 167 case -1: 168 ATF_REQUIRE(pid > 0); 169 default: 170 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid); 171 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGSEGV 172 && WCOREDUMP(st)); 173 ATF_REQUIRE(si.si_status == SIGSEGV); 174 ATF_REQUIRE(si.si_pid == pid); 175 ATF_REQUIRE(si.si_uid == getuid()); 176 ATF_REQUIRE(si.si_code == CLD_DUMPED); 177 #ifdef __NetBSD__ 178 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime, 179 (uintmax_t)si.si_utime); 180 #endif 181 break; 182 } 183 } 184 185 ATF_TC(wait6_stop_and_go); 186 ATF_TC_HEAD(wait6_stop_and_go, tc) 187 { 188 atf_tc_set_md_var(tc, "descr", 189 "Test that wait6(2) handled stopped/continued process and code"); 190 } 191 192 ATF_TC_BODY(wait6_stop_and_go, tc) 193 { 194 siginfo_t si; 195 struct wrusage wru; 196 int st; 197 pid_t pid; 198 static const struct rlimit rl = { 0, 0 }; 199 200 ATF_REQUIRE(setrlimit(RLIMIT_CORE, &rl) == 0); 201 switch (pid = fork()) { 202 case 0: 203 sleep(100); 204 /*FALLTHROUGH*/ 205 case -1: 206 ATF_REQUIRE(pid > 0); 207 default: 208 ATF_REQUIRE(kill(pid, SIGSTOP) == 0); 209 ATF_REQUIRE(wait6(P_PID, pid, &st, WSTOPPED, &wru, &si) == pid); 210 ATF_REQUIRE(!WIFEXITED(st)); 211 ATF_REQUIRE(!WIFSIGNALED(st)); 212 ATF_REQUIRE(WIFSTOPPED(st) && WSTOPSIG(st) == SIGSTOP); 213 ATF_REQUIRE(!WIFCONTINUED(st)); 214 ATF_REQUIRE(si.si_status == SIGSTOP); 215 ATF_REQUIRE(si.si_pid == pid); 216 ATF_REQUIRE(si.si_uid == getuid()); 217 ATF_REQUIRE(si.si_code == CLD_STOPPED); 218 #ifdef __NetBSD__ 219 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime, 220 (uintmax_t)si.si_utime); 221 #endif 222 223 ATF_REQUIRE(kill(pid, SIGCONT) == 0); 224 ATF_REQUIRE(wait6(P_PID, pid, &st, WCONTINUED, &wru, &si) == pid); 225 ATF_REQUIRE(!WIFEXITED(st)); 226 ATF_REQUIRE(!WIFSIGNALED(st)); 227 ATF_REQUIRE(WIFCONTINUED(st)); 228 ATF_REQUIRE(!WIFSTOPPED(st)); 229 ATF_REQUIRE(si.si_status == SIGCONT); 230 ATF_REQUIRE(si.si_pid == pid); 231 ATF_REQUIRE(si.si_uid == getuid()); 232 ATF_REQUIRE(si.si_code == CLD_CONTINUED); 233 #ifdef __NetBSD__ 234 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime, 235 (uintmax_t)si.si_utime); 236 #endif 237 238 ATF_REQUIRE(kill(pid, SIGQUIT) == 0); 239 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid); 240 ATF_REQUIRE(!WIFEXITED(st)); 241 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGQUIT); 242 ATF_REQUIRE(!WIFSTOPPED(st)); 243 ATF_REQUIRE(!WIFCONTINUED(st)); 244 ATF_REQUIRE(si.si_status == SIGQUIT); 245 ATF_REQUIRE(si.si_pid == pid); 246 ATF_REQUIRE(si.si_uid == getuid()); 247 ATF_REQUIRE(si.si_code == CLD_KILLED); 248 #ifdef __NetBSD__ 249 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime, 250 (uintmax_t)si.si_utime); 251 #endif 252 break; 253 } 254 } 255 256 ATF_TC(wait6_stopgo_loop); 257 ATF_TC_HEAD(wait6_stopgo_loop, tc) 258 { 259 atf_tc_set_md_var(tc, "descr", 260 "Test that wait6(2) handled stopped/continued process loop"); 261 } 262 263 ATF_TC_BODY(wait6_stopgo_loop, tc) 264 { 265 siginfo_t si; 266 struct wrusage wru; 267 int st; 268 pid_t pid; 269 static const struct rlimit rl = { 0, 0 }; 270 size_t N = 100; 271 272 ATF_REQUIRE(setrlimit(RLIMIT_CORE, &rl) == 0); 273 switch (pid = fork()) { 274 case 0: 275 sleep(100); 276 /*FALLTHROUGH*/ 277 case -1: 278 ATF_REQUIRE(pid > 0); 279 } 280 281 printf("Before loop of SIGSTOP/SIGCONT sequence %zu times\n", N); 282 while (N --> 0) { 283 ATF_REQUIRE(kill(pid, SIGSTOP) == 0); 284 ATF_REQUIRE(wait6(P_PID, pid, &st, WSTOPPED, &wru, &si) == pid); 285 ATF_REQUIRE(!WIFEXITED(st)); 286 ATF_REQUIRE(!WIFSIGNALED(st)); 287 ATF_REQUIRE(WIFSTOPPED(st) && WSTOPSIG(st) == SIGSTOP); 288 ATF_REQUIRE(!WIFCONTINUED(st)); 289 ATF_REQUIRE(si.si_status == SIGSTOP); 290 ATF_REQUIRE(si.si_pid == pid); 291 ATF_REQUIRE(si.si_uid == getuid()); 292 ATF_REQUIRE(si.si_code == CLD_STOPPED); 293 294 ATF_REQUIRE(kill(pid, SIGCONT) == 0); 295 ATF_REQUIRE(wait6(P_PID, pid, &st, WCONTINUED, &wru, &si) == pid); 296 ATF_REQUIRE(!WIFEXITED(st)); 297 ATF_REQUIRE(!WIFSIGNALED(st)); 298 ATF_REQUIRE(WIFCONTINUED(st)); 299 ATF_REQUIRE(!WIFSTOPPED(st)); 300 ATF_REQUIRE(si.si_status == SIGCONT); 301 ATF_REQUIRE(si.si_pid == pid); 302 ATF_REQUIRE(si.si_uid == getuid()); 303 ATF_REQUIRE(si.si_code == CLD_CONTINUED); 304 } 305 ATF_REQUIRE(kill(pid, SIGQUIT) == 0); 306 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid); 307 ATF_REQUIRE(!WIFEXITED(st)); 308 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGQUIT); 309 ATF_REQUIRE(!WIFSTOPPED(st)); 310 ATF_REQUIRE(!WIFCONTINUED(st)); 311 ATF_REQUIRE(si.si_status == SIGQUIT); 312 ATF_REQUIRE(si.si_pid == pid); 313 ATF_REQUIRE(si.si_uid == getuid()); 314 ATF_REQUIRE(si.si_code == CLD_KILLED); 315 #ifdef __NetBSD__ 316 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime, 317 (uintmax_t)si.si_utime); 318 #endif 319 } 320 321 ATF_TP_ADD_TCS(tp) 322 { 323 324 ATF_TP_ADD_TC(tp, wait6_invalid); 325 ATF_TP_ADD_TC(tp, wait6_exited); 326 ATF_TP_ADD_TC(tp, wait6_terminated); 327 ATF_TP_ADD_TC(tp, wait6_coredumped); 328 ATF_TP_ADD_TC(tp, wait6_stop_and_go); 329 ATF_TP_ADD_TC(tp, wait6_stopgo_loop); 330 331 return atf_no_error(); 332 } 333