t_wait_noproc.c revision 313535
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 48ATF_TC(wait); 49ATF_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 55ATF_TC_BODY(wait, tc) 56{ 57 ATF_REQUIRE_ERRNO(ECHILD, wait(NULL) == -1); 58} 59#endif 60 61ATF_TC(waitpid); 62ATF_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 69ATF_TC_BODY(waitpid, tc) 70{ 71 ATF_REQUIRE_ERRNO(ECHILD, waitpid(WAIT_ANY, NULL, TWAIT_OPTION) == -1); 72} 73 74ATF_TC(waitid); 75ATF_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 82ATF_TC_BODY(waitid, tc) 83{ 84 ATF_REQUIRE_ERRNO(ECHILD, 85 waitid(P_ALL, 0, NULL, 86 WTRAPPED | WEXITED | TWAIT_OPTION) == -1); 87} 88 89ATF_TC(wait3); 90ATF_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 96ATF_TC_BODY(wait3, tc) 97{ 98 ATF_REQUIRE_ERRNO(ECHILD, wait3(NULL, TWAIT_OPTION, NULL) == -1); 99} 100 101ATF_TC(wait4); 102ATF_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 109ATF_TC_BODY(wait4, tc) 110{ 111 ATF_REQUIRE_ERRNO(ECHILD, 112 wait4(WAIT_ANY, NULL, TWAIT_OPTION, NULL) == -1); 113} 114 115ATF_TC(wait6); 116ATF_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 123ATF_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 */ 134static int 135get_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 */ 175static int 176get_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 220ATF_TC(waitpid_options); 221ATF_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 229ATF_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 242ATF_TC(waitid_options); 243ATF_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 251ATF_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 264ATF_TC(wait3_options); 265ATF_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 271ATF_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 284ATF_TC(wait4_options); 285ATF_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 292ATF_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 305ATF_TC(wait6_options); 306ATF_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 313ATF_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 326ATF_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