1 /* $NetBSD: t_wait_noproc.c,v 1.5 2016/11/09 17:50:19 kamil Exp $ */ 2 3 /*- 4 * Copyright (c) 2016 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 __RCSID("$NetBSD: t_wait_noproc.c,v 1.5 2016/11/09 17:50:19 kamil Exp $"); 31 32 #include <sys/wait.h> 33 #include <sys/resource.h> 34 35 #include <errno.h> 36 #include <stdio.h> 37 38 #include <atf-c.h> 39 40 #ifndef TWAIT_OPTION 41 #define TWAIT_OPTION 0 42 #endif 43 44 #if TWAIT_OPTION == 0 45 ATF_TC(wait); 46 ATF_TC_HEAD(wait, tc) 47 { 48 atf_tc_set_md_var(tc, "descr", 49 "Test that wait(2) returns ECHILD for no child"); 50 } 51 52 ATF_TC_BODY(wait, tc) 53 { 54 ATF_REQUIRE_ERRNO(ECHILD, wait(NULL) == -1); 55 } 56 #endif 57 58 ATF_TC(waitpid); 59 ATF_TC_HEAD(waitpid, tc) 60 { 61 atf_tc_set_md_var(tc, "descr", 62 "Test that waitpid(2) returns ECHILD for WAIT_ANY and option %s", 63 ___STRING(TWAIT_OPTION)); 64 } 65 66 ATF_TC_BODY(waitpid, tc) 67 { 68 ATF_REQUIRE_ERRNO(ECHILD, waitpid(WAIT_ANY, NULL, TWAIT_OPTION) == -1); 69 } 70 71 ATF_TC(waitid); 72 ATF_TC_HEAD(waitid, tc) 73 { 74 atf_tc_set_md_var(tc, "descr", 75 "Test that waitid(2) returns ECHILD for P_ALL and option %s", 76 ___STRING(TWAIT_OPTION)); 77 } 78 79 ATF_TC_BODY(waitid, tc) 80 { 81 ATF_REQUIRE_ERRNO(ECHILD, 82 waitid(P_ALL, 0, NULL, 83 WTRAPPED | WEXITED | TWAIT_OPTION) == -1); 84 } 85 86 ATF_TC(wait3); 87 ATF_TC_HEAD(wait3, tc) 88 { 89 atf_tc_set_md_var(tc, "descr", 90 "Test that wait3(2) returns ECHILD for no child"); 91 } 92 93 ATF_TC_BODY(wait3, tc) 94 { 95 ATF_REQUIRE_ERRNO(ECHILD, wait3(NULL, TWAIT_OPTION, NULL) == -1); 96 } 97 98 ATF_TC(wait4); 99 ATF_TC_HEAD(wait4, tc) 100 { 101 atf_tc_set_md_var(tc, "descr", 102 "Test that wait4(2) returns ECHILD for WAIT_ANY and option %s", 103 ___STRING(TWAIT_OPTION)); 104 } 105 106 ATF_TC_BODY(wait4, tc) 107 { 108 ATF_REQUIRE_ERRNO(ECHILD, 109 wait4(WAIT_ANY, NULL, TWAIT_OPTION, NULL) == -1); 110 } 111 112 ATF_TC(wait6); 113 ATF_TC_HEAD(wait6, tc) 114 { 115 atf_tc_set_md_var(tc, "descr", 116 "Test that wait6(2) returns ECHILD for P_ALL and option %s", 117 ___STRING(TWAIT_OPTION)); 118 } 119 120 ATF_TC_BODY(wait6, tc) 121 { 122 ATF_REQUIRE_ERRNO(ECHILD, 123 wait6(P_ALL, 0, NULL, 124 WTRAPPED | WEXITED | TWAIT_OPTION, NULL, NULL) == -1); 125 } 126 127 /* 128 * Generator of valid combinations of options 129 * Usage: i = 0; while ((o = get_options_wait6(i++)) != -1) {} 130 */ 131 static int 132 get_options6(size_t pos) 133 { 134 int rv = 0; 135 size_t n; 136 137 /* 138 * waitid(2) must specify at least one of WEXITED, WUNTRACED, 139 * WSTOPPED, WTRAPPED or WCONTINUED. Single option WNOWAIT 140 * isn't valid. 141 */ 142 143 const int matrix[] = { 144 WNOWAIT, /* First in order to blacklist it easily */ 145 WEXITED, 146 WUNTRACED, 147 WSTOPPED, /* SUS compatibility, equal to WUNTRACED */ 148 WTRAPPED, 149 WCONTINUED 150 }; 151 152 const size_t M = (1 << __arraycount(matrix)) - 1; 153 154 /* Skip empty and sole WNOWAIT option */ 155 pos+=2; 156 157 if (pos > M) 158 return -1; 159 160 for (n = 0; n < __arraycount(matrix); n++) { 161 if (pos & __BIT(n)) 162 rv |= matrix[n]; 163 } 164 165 return rv; 166 } 167 168 /* 169 * Generator of valid combinations of options 170 * Usage: i = 0; while ((o = get_options_wait4(i++)) != -1) {} 171 */ 172 static int 173 get_options4(size_t pos) 174 { 175 int rv = 0; 176 size_t n; 177 178 const int special[] = { 179 0, 180 #ifdef __NetBSD__ 181 WALLSIG, 182 WALTSIG, 183 __WALL, /* Linux compatibility, equal to WALLSIG */ 184 __WCLONE /* Linux compatibility, equal to WALTSIG */ 185 #endif 186 }; 187 188 const int matrix[] = { 189 WNOWAIT, 190 WEXITED, 191 WUNTRACED, 192 WSTOPPED, /* SUS compatibility, equal to WUNTRACED */ 193 WTRAPPED, 194 WCONTINUED 195 }; 196 197 const size_t M = (1 << __arraycount(special)) - 1; 198 199 if (pos < __arraycount(special)) 200 return special[pos]; 201 202 pos -= __arraycount(special); 203 204 ++pos; /* Don't start with empty mask */ 205 206 if (pos > M) 207 return -1; 208 209 for (n = 0; n < __arraycount(special); n++) { 210 if (pos & __BIT(n)) 211 rv |= matrix[n]; 212 } 213 214 return rv; 215 } 216 217 ATF_TC(waitpid_options); 218 ATF_TC_HEAD(waitpid_options, tc) 219 { 220 atf_tc_set_md_var(tc, "descr", 221 "Test that waitpid(2) returns ECHILD for WAIT_ANY and valid " 222 "combination of options with%s WNOHANG", 223 TWAIT_OPTION == 0 ? "out" : ""); 224 } 225 226 ATF_TC_BODY(waitpid_options, tc) 227 { 228 size_t i = 0; 229 int o; 230 231 while((o = get_options4(i++)) != -1) { 232 printf("Testing waitpid(2) with options %x\n", o); 233 234 ATF_REQUIRE_ERRNO(ECHILD, 235 waitpid(WAIT_ANY, NULL, o | TWAIT_OPTION) == -1); 236 } 237 } 238 239 ATF_TC(waitid_options); 240 ATF_TC_HEAD(waitid_options, tc) 241 { 242 atf_tc_set_md_var(tc, "descr", 243 "Test that waitid(2) returns ECHILD for P_ALL and valid " 244 "combination of options with%s WNOHANG", 245 TWAIT_OPTION == 0 ? "out" : ""); 246 } 247 248 ATF_TC_BODY(waitid_options, tc) 249 { 250 size_t i = 0; 251 int o; 252 253 while((o = get_options6(i++)) != -1) { 254 printf("Testing waitid(2) with options %x\n", o); 255 256 ATF_REQUIRE_ERRNO(ECHILD, 257 waitid(P_ALL, 0, NULL, o | TWAIT_OPTION) == -1); 258 } 259 } 260 261 ATF_TC(wait3_options); 262 ATF_TC_HEAD(wait3_options, tc) 263 { 264 atf_tc_set_md_var(tc, "descr", 265 "Test that wait3(2) returns ECHILD for no child"); 266 } 267 268 ATF_TC_BODY(wait3_options, tc) 269 { 270 size_t i = 0; 271 int o; 272 273 while((o = get_options4(i++)) != -1) { 274 printf("Testing wait3(2) with options %x\n", o); 275 276 ATF_REQUIRE_ERRNO(ECHILD, 277 wait3(NULL, o | TWAIT_OPTION, NULL) == -1); 278 } 279 } 280 281 ATF_TC(wait4_options); 282 ATF_TC_HEAD(wait4_options, tc) 283 { 284 atf_tc_set_md_var(tc, "descr", 285 "Test that wait4(2) returns ECHILD for WAIT_ANY and option %s", 286 ___STRING(TWAIT_OPTION)); 287 } 288 289 ATF_TC_BODY(wait4_options, tc) 290 { 291 size_t i = 0; 292 int o; 293 294 while((o = get_options4(i++)) != -1) { 295 printf("Testing wait4(2) with options %x\n", o); 296 297 ATF_REQUIRE_ERRNO(ECHILD, 298 wait4(WAIT_ANY, NULL, o | TWAIT_OPTION, NULL) == -1); 299 } 300 } 301 302 ATF_TC(wait6_options); 303 ATF_TC_HEAD(wait6_options, tc) 304 { 305 atf_tc_set_md_var(tc, "descr", 306 "Test that wait6(2) returns ECHILD for P_ALL and option %s", 307 ___STRING(TWAIT_OPTION)); 308 } 309 310 ATF_TC_BODY(wait6_options, tc) 311 { 312 size_t i = 0; 313 int o; 314 315 while((o = get_options6(i++)) != -1) { 316 printf("Testing wait6(2) with options %x\n", o); 317 318 ATF_REQUIRE_ERRNO(ECHILD, 319 wait6(P_ALL, 0, NULL, o | TWAIT_OPTION, NULL, NULL) == -1); 320 } 321 } 322 323 ATF_TP_ADD_TCS(tp) 324 { 325 326 #if TWAIT_OPTION == 0 327 ATF_TP_ADD_TC(tp, wait); 328 #endif 329 ATF_TP_ADD_TC(tp, waitpid); 330 ATF_TP_ADD_TC(tp, waitid); 331 ATF_TP_ADD_TC(tp, wait3); 332 ATF_TP_ADD_TC(tp, wait4); 333 ATF_TP_ADD_TC(tp, wait6); 334 335 ATF_TP_ADD_TC(tp, waitpid_options); 336 ATF_TP_ADD_TC(tp, waitid_options); 337 ATF_TP_ADD_TC(tp, wait3_options); 338 ATF_TP_ADD_TC(tp, wait4_options); 339 ATF_TP_ADD_TC(tp, wait6_options); 340 341 return atf_no_error(); 342 } 343