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 #ifdef __FreeBSD__ 33 #include <sys/param.h> /* For NBBY -- it's in sys/types.h on NetBSD */ 34 #endif 35 #include <sys/wait.h> 36 #include <sys/resource.h> 37 38 #include <errno.h> 39 #include <stdio.h> 40 41 #include <atf-c.h> 42 43 #ifndef TWAIT_OPTION 44 #define TWAIT_OPTION 0 45 #endif 46 47 #if TWAIT_OPTION == 0 48 ATF_TC(wait); 49 ATF_TC_HEAD(wait, tc) 50 { 51 atf_tc_set_md_var(tc, "descr", 52 "Test that wait(2) returns ECHILD for no child"); 53 } 54 55 ATF_TC_BODY(wait, tc) 56 { 57 ATF_REQUIRE_ERRNO(ECHILD, wait(NULL) == -1); 58 } 59 #endif 60 61 ATF_TC(waitpid); 62 ATF_TC_HEAD(waitpid, tc) 63 { 64 atf_tc_set_md_var(tc, "descr", 65 "Test that waitpid(2) returns ECHILD for WAIT_ANY and option %s", 66 ___STRING(TWAIT_OPTION)); 67 } 68 69 ATF_TC_BODY(waitpid, tc) 70 { 71 ATF_REQUIRE_ERRNO(ECHILD, waitpid(WAIT_ANY, NULL, TWAIT_OPTION) == -1); 72 } 73 74 ATF_TC(waitid); 75 ATF_TC_HEAD(waitid, tc) 76 { 77 atf_tc_set_md_var(tc, "descr", 78 "Test that waitid(2) returns ECHILD for P_ALL and option %s", 79 ___STRING(TWAIT_OPTION)); 80 } 81 82 ATF_TC_BODY(waitid, tc) 83 { 84 ATF_REQUIRE_ERRNO(ECHILD, 85 waitid(P_ALL, 0, NULL, 86 WTRAPPED | WEXITED | TWAIT_OPTION) == -1); 87 } 88 89 ATF_TC(wait3); 90 ATF_TC_HEAD(wait3, tc) 91 { 92 atf_tc_set_md_var(tc, "descr", 93 "Test that wait3(2) returns ECHILD for no child"); 94 } 95 96 ATF_TC_BODY(wait3, tc) 97 { 98 ATF_REQUIRE_ERRNO(ECHILD, wait3(NULL, TWAIT_OPTION, NULL) == -1); 99 } 100 101 ATF_TC(wait4); 102 ATF_TC_HEAD(wait4, tc) 103 { 104 atf_tc_set_md_var(tc, "descr", 105 "Test that wait4(2) returns ECHILD for WAIT_ANY and option %s", 106 ___STRING(TWAIT_OPTION)); 107 } 108 109 ATF_TC_BODY(wait4, tc) 110 { 111 ATF_REQUIRE_ERRNO(ECHILD, 112 wait4(WAIT_ANY, NULL, TWAIT_OPTION, NULL) == -1); 113 } 114 115 ATF_TC(wait6); 116 ATF_TC_HEAD(wait6, tc) 117 { 118 atf_tc_set_md_var(tc, "descr", 119 "Test that wait6(2) returns ECHILD for P_ALL and option %s", 120 ___STRING(TWAIT_OPTION)); 121 } 122 123 ATF_TC_BODY(wait6, tc) 124 { 125 ATF_REQUIRE_ERRNO(ECHILD, 126 wait6(P_ALL, 0, NULL, 127 WTRAPPED | WEXITED | TWAIT_OPTION, NULL, NULL) == -1); 128 } 129 130 /* 131 * Generator of valid combinations of options 132 * Usage: i = 0; while ((o = get_options_wait6(i++)) != -1) {} 133 */ 134 static int 135 get_options6(size_t pos) 136 { 137 int rv = 0; 138 size_t n; 139 140 /* 141 * waitid(2) must specify at least one of WEXITED, WUNTRACED, 142 * WSTOPPED, WTRAPPED or WCONTINUED. Single option WNOWAIT 143 * isn't valid. 144 */ 145 146 const int matrix[] = { 147 WNOWAIT, /* First in order to blacklist it easily */ 148 WEXITED, 149 WUNTRACED, 150 WSTOPPED, /* SUS compatibility, equal to WUNTRACED */ 151 WTRAPPED, 152 WCONTINUED 153 }; 154 155 const size_t M = (1 << __arraycount(matrix)) - 1; 156 157 /* Skip empty and sole WNOWAIT option */ 158 pos+=2; 159 160 if (pos > M) 161 return -1; 162 163 for (n = 0; n < __arraycount(matrix); n++) { 164 if (pos & __BIT(n)) 165 rv |= matrix[n]; 166 } 167 168 return rv; 169 } 170 171 /* 172 * Generator of valid combinations of options 173 * Usage: i = 0; while ((o = get_options_wait4(i++)) != -1) {} 174 */ 175 static int 176 get_options4(size_t pos) 177 { 178 int rv = 0; 179 size_t n; 180 181 const int special[] = { 182 0, 183 #ifdef __NetBSD__ 184 WALLSIG, 185 WALTSIG, 186 __WALL, /* Linux compatibility, equal to WALLSIG */ 187 __WCLONE /* Linux compatibility, equal to WALTSIG */ 188 #endif 189 }; 190 191 const int matrix[] = { 192 WNOWAIT, 193 WEXITED, 194 WUNTRACED, 195 WSTOPPED, /* SUS compatibility, equal to WUNTRACED */ 196 WTRAPPED, 197 WCONTINUED 198 }; 199 200 const size_t M = (1 << __arraycount(special)) - 1; 201 202 if (pos < __arraycount(special)) 203 return special[pos]; 204 205 pos -= __arraycount(special); 206 207 ++pos; /* Don't start with empty mask */ 208 209 if (pos > M) 210 return -1; 211 212 for (n = 0; n < __arraycount(special); n++) { 213 if (pos & __BIT(n)) 214 rv |= matrix[n]; 215 } 216 217 return rv; 218 } 219 220 ATF_TC(waitpid_options); 221 ATF_TC_HEAD(waitpid_options, tc) 222 { 223 atf_tc_set_md_var(tc, "descr", 224 "Test that waitpid(2) returns ECHILD for WAIT_ANY and valid " 225 "combination of options with%s WNOHANG", 226 TWAIT_OPTION == 0 ? "out" : ""); 227 } 228 229 ATF_TC_BODY(waitpid_options, tc) 230 { 231 size_t i = 0; 232 int o; 233 234 while((o = get_options4(i++)) != -1) { 235 printf("Testing waitpid(2) with options %x\n", o); 236 237 ATF_REQUIRE_ERRNO(ECHILD, 238 waitpid(WAIT_ANY, NULL, o | TWAIT_OPTION) == -1); 239 } 240 } 241 242 ATF_TC(waitid_options); 243 ATF_TC_HEAD(waitid_options, tc) 244 { 245 atf_tc_set_md_var(tc, "descr", 246 "Test that waitid(2) returns ECHILD for P_ALL and valid " 247 "combination of options with%s WNOHANG", 248 TWAIT_OPTION == 0 ? "out" : ""); 249 } 250 251 ATF_TC_BODY(waitid_options, tc) 252 { 253 size_t i = 0; 254 int o; 255 256 while((o = get_options6(i++)) != -1) { 257 printf("Testing waitid(2) with options %x\n", o); 258 259 ATF_REQUIRE_ERRNO(ECHILD, 260 waitid(P_ALL, 0, NULL, o | TWAIT_OPTION) == -1); 261 } 262 } 263 264 ATF_TC(wait3_options); 265 ATF_TC_HEAD(wait3_options, tc) 266 { 267 atf_tc_set_md_var(tc, "descr", 268 "Test that wait3(2) returns ECHILD for no child"); 269 } 270 271 ATF_TC_BODY(wait3_options, tc) 272 { 273 size_t i = 0; 274 int o; 275 276 while((o = get_options4(i++)) != -1) { 277 printf("Testing wait3(2) with options %x\n", o); 278 279 ATF_REQUIRE_ERRNO(ECHILD, 280 wait3(NULL, o | TWAIT_OPTION, NULL) == -1); 281 } 282 } 283 284 ATF_TC(wait4_options); 285 ATF_TC_HEAD(wait4_options, tc) 286 { 287 atf_tc_set_md_var(tc, "descr", 288 "Test that wait4(2) returns ECHILD for WAIT_ANY and option %s", 289 ___STRING(TWAIT_OPTION)); 290 } 291 292 ATF_TC_BODY(wait4_options, tc) 293 { 294 size_t i = 0; 295 int o; 296 297 while((o = get_options4(i++)) != -1) { 298 printf("Testing wait4(2) with options %x\n", o); 299 300 ATF_REQUIRE_ERRNO(ECHILD, 301 wait4(WAIT_ANY, NULL, o | TWAIT_OPTION, NULL) == -1); 302 } 303 } 304 305 ATF_TC(wait6_options); 306 ATF_TC_HEAD(wait6_options, tc) 307 { 308 atf_tc_set_md_var(tc, "descr", 309 "Test that wait6(2) returns ECHILD for P_ALL and option %s", 310 ___STRING(TWAIT_OPTION)); 311 } 312 313 ATF_TC_BODY(wait6_options, tc) 314 { 315 size_t i = 0; 316 int o; 317 318 while((o = get_options6(i++)) != -1) { 319 printf("Testing wait6(2) with options %x\n", o); 320 321 ATF_REQUIRE_ERRNO(ECHILD, 322 wait6(P_ALL, 0, NULL, o | TWAIT_OPTION, NULL, NULL) == -1); 323 } 324 } 325 326 ATF_TP_ADD_TCS(tp) 327 { 328 329 #if TWAIT_OPTION == 0 330 ATF_TP_ADD_TC(tp, wait); 331 #endif 332 ATF_TP_ADD_TC(tp, waitpid); 333 ATF_TP_ADD_TC(tp, waitid); 334 ATF_TP_ADD_TC(tp, wait3); 335 ATF_TP_ADD_TC(tp, wait4); 336 ATF_TP_ADD_TC(tp, wait6); 337 338 ATF_TP_ADD_TC(tp, waitpid_options); 339 ATF_TP_ADD_TC(tp, waitid_options); 340 ATF_TP_ADD_TC(tp, wait3_options); 341 ATF_TP_ADD_TC(tp, wait4_options); 342 ATF_TP_ADD_TC(tp, wait6_options); 343 344 return atf_no_error(); 345 } 346