t_stat.c revision 1.1
1 /* $NetBSD: t_stat.c,v 1.1 2011/07/07 06:57:54 jruoho Exp $ */ 2 3 /*- 4 * Copyright (c) 2011 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jukka Ruohonen. 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_stat.c,v 1.1 2011/07/07 06:57:54 jruoho Exp $"); 33 34 #include <sys/stat.h> 35 #include <sys/types.h> 36 37 #include <atf-c.h> 38 #include <errno.h> 39 #include <fcntl.h> 40 #include <fts.h> 41 #include <limits.h> 42 #include <string.h> 43 #include <unistd.h> 44 45 #include <stdio.h> 46 47 static const char *path = "stat"; 48 49 ATF_TC_WITH_CLEANUP(stat_chflags); 50 ATF_TC_HEAD(stat_chflags, tc) 51 { 52 atf_tc_set_md_var(tc, "descr", "Test chflags(2) with stat(2)"); 53 } 54 55 ATF_TC_BODY(stat_chflags, tc) 56 { 57 struct stat sa, sb; 58 int fd; 59 60 (void)memset(&sa, 0, sizeof(struct stat)); 61 (void)memset(&sb, 0, sizeof(struct stat)); 62 63 fd = open(path, O_RDONLY | O_CREAT); 64 65 ATF_REQUIRE(fd != -1); 66 ATF_REQUIRE(stat(path, &sa) == 0); 67 ATF_REQUIRE(chflags(path, UF_NODUMP) == 0); 68 ATF_REQUIRE(stat(path, &sb) == 0); 69 70 if (sa.st_flags == sb.st_flags) 71 atf_tc_fail("stat(2) did not detect chflags(2)"); 72 73 ATF_REQUIRE(close(fd) == 0); 74 ATF_REQUIRE(unlink(path) == 0); 75 } 76 77 ATF_TC_CLEANUP(stat_chflags, tc) 78 { 79 (void)unlink(path); 80 } 81 82 ATF_TC(stat_dir); 83 ATF_TC_HEAD(stat_dir, tc) 84 { 85 atf_tc_set_md_var(tc, "descr", "Test stat(2) with directories"); 86 } 87 88 ATF_TC_BODY(stat_dir, tc) 89 { 90 const short depth = 3; 91 struct stat sa, sb; 92 char *argv[2]; 93 FTSENT *ftse; 94 FTS *fts; 95 int ops; 96 97 /* 98 * XXX: This is verified to panic at least a qemu/i386 guest. 99 */ 100 atf_tc_skip("the test may cause a panic"); 101 102 argv[1] = NULL; 103 argv[0] = __UNCONST("/"); 104 105 ops = FTS_NOCHDIR; 106 ops |= FTS_PHYSICAL; 107 108 fts = fts_open(argv, ops, NULL); 109 ATF_REQUIRE(fts != NULL); 110 111 while ((ftse = fts_read(fts)) != NULL) { 112 113 if (ftse->fts_level < 1) 114 continue; 115 116 if (ftse->fts_level > depth) { 117 (void)fts_set(fts, ftse, FTS_SKIP); 118 continue; 119 } 120 121 switch(ftse->fts_info) { 122 123 case FTS_DP: 124 125 (void)memset(&sa, 0, sizeof(struct stat)); 126 (void)memset(&sb, 0, sizeof(struct stat)); 127 128 ATF_REQUIRE(stat(ftse->fts_parent->fts_path,&sa) == 0); 129 ATF_REQUIRE(chdir(ftse->fts_path) == 0); 130 ATF_REQUIRE(stat(".", &sb) == 0); 131 132 /* 133 * The previous two stat(2) calls 134 * should be for the same directory. 135 */ 136 if (sa.st_dev != sb.st_dev || sa.st_ino != sb.st_ino) 137 atf_tc_fail("inconsistent stat(2)"); 138 139 /* 140 * Check that fts(3)'s stat(2) 141 * call equals the manual one. 142 */ 143 if (sb.st_ino != ftse->fts_statp->st_ino) 144 atf_tc_fail("stat(2) and fts(3) differ"); 145 146 break; 147 148 default: 149 break; 150 } 151 } 152 153 (void)fts_close(fts); 154 } 155 156 ATF_TC(stat_err); 157 ATF_TC_HEAD(stat_err, tc) 158 { 159 atf_tc_set_md_var(tc, "descr", "Test errors from the stat(2) family"); 160 } 161 162 ATF_TC_BODY(stat_err, tc) 163 { 164 char buf[NAME_MAX + 1]; 165 struct stat st; 166 167 (void)memset(buf, 'x', sizeof(buf)); 168 169 errno = 0; 170 ATF_REQUIRE_ERRNO(EBADF, fstat(-1, &st) == -1); 171 172 errno = 0; 173 ATF_REQUIRE_ERRNO(ENAMETOOLONG, stat(buf, &st) == -1); 174 175 errno = 0; 176 ATF_REQUIRE_ERRNO(ENAMETOOLONG, lstat(buf, &st) == -1); 177 178 errno = 0; 179 ATF_REQUIRE_ERRNO(EFAULT, stat((void *)-1, &st) == -1); 180 181 errno = 0; 182 ATF_REQUIRE_ERRNO(EFAULT, lstat((void *)-1, &st) == -1); 183 184 errno = 0; 185 ATF_REQUIRE_ERRNO(EFAULT, stat("/etc/passwd", (void *)-1) == -1); 186 187 errno = 0; 188 ATF_REQUIRE_ERRNO(EFAULT, lstat("/etc/passwd", (void *)-1) == -1); 189 190 errno = 0; 191 ATF_REQUIRE_ERRNO(ENOENT, stat("/a/b/c/d/e/f/g/h/i/j/k", &st) == -1); 192 193 errno = 0; 194 ATF_REQUIRE_ERRNO(ENOENT, lstat("/a/b/c/d/e/f/g/h/i/j/k", &st) == -1); 195 } 196 197 ATF_TC_WITH_CLEANUP(stat_mtime); 198 ATF_TC_HEAD(stat_mtime, tc) 199 { 200 atf_tc_set_md_var(tc, "descr", "Test modification times with stat(2)"); 201 } 202 203 ATF_TC_BODY(stat_mtime, tc) 204 { 205 struct stat sa, sb; 206 int fd[3]; 207 size_t i; 208 209 for (i = 0; i < __arraycount(fd); i++) { 210 211 (void)memset(&sa, 0, sizeof(struct stat)); 212 (void)memset(&sb, 0, sizeof(struct stat)); 213 214 fd[i] = open(path, O_WRONLY | O_CREAT); 215 216 ATF_REQUIRE(fd[i] != -1); 217 ATF_REQUIRE(write(fd[i], "X", 1) == 1); 218 ATF_REQUIRE(stat(path, &sa) == 0); 219 220 (void)sleep(1); 221 222 ATF_REQUIRE(write(fd[i], "X", 1) == 1); 223 ATF_REQUIRE(stat(path, &sb) == 0); 224 225 ATF_REQUIRE(close(fd[i]) == 0); 226 ATF_REQUIRE(unlink(path) == 0); 227 228 if (sa.st_mtime == sb.st_mtime) 229 atf_tc_fail("mtimes did not change"); 230 } 231 } 232 233 ATF_TC_CLEANUP(stat_mtime, tc) 234 { 235 (void)unlink(path); 236 } 237 238 ATF_TC_WITH_CLEANUP(stat_perm); 239 ATF_TC_HEAD(stat_perm, tc) 240 { 241 atf_tc_set_md_var(tc, "descr", "Test permissions with stat(2)"); 242 atf_tc_set_md_var(tc, "require.user", "root"); 243 } 244 245 ATF_TC_BODY(stat_perm, tc) 246 { 247 struct stat sa, sb; 248 gid_t gid; 249 uid_t uid; 250 int fd; 251 252 (void)memset(&sa, 0, sizeof(struct stat)); 253 (void)memset(&sb, 0, sizeof(struct stat)); 254 255 uid = getuid(); 256 gid = getgid(); 257 258 fd = open(path, O_RDONLY | O_CREAT); 259 260 ATF_REQUIRE(fd != -1); 261 ATF_REQUIRE(fstat(fd, &sa) == 0); 262 ATF_REQUIRE(stat(path, &sb) == 0); 263 264 if (gid != sa.st_gid || sa.st_gid != sb.st_gid) 265 atf_tc_fail("invalid GID"); 266 267 if (uid != sa.st_uid || sa.st_uid != sb.st_uid) 268 atf_tc_fail("invalid UID"); 269 270 ATF_REQUIRE(close(fd) == 0); 271 ATF_REQUIRE(unlink(path) == 0); 272 } 273 274 ATF_TC_CLEANUP(stat_perm, tc) 275 { 276 (void)unlink(path); 277 } 278 279 ATF_TC_WITH_CLEANUP(stat_size); 280 ATF_TC_HEAD(stat_size, tc) 281 { 282 atf_tc_set_md_var(tc, "descr", "Test file sizes with stat(2)"); 283 } 284 285 ATF_TC_BODY(stat_size, tc) 286 { 287 struct stat sa, sb, sc; 288 const size_t n = 10; 289 size_t i; 290 int fd; 291 292 fd = open(path, O_WRONLY | O_CREAT); 293 ATF_REQUIRE(fd >= 0); 294 295 for (i = 0; i < n; i++) { 296 297 (void)memset(&sa, 0, sizeof(struct stat)); 298 (void)memset(&sb, 0, sizeof(struct stat)); 299 (void)memset(&sc, 0, sizeof(struct stat)); 300 301 ATF_REQUIRE(fstat(fd, &sa) == 0); 302 ATF_REQUIRE(write(fd, "X", 1) == 1); 303 ATF_REQUIRE(fstat(fd, &sb) == 0); 304 ATF_REQUIRE(stat(path, &sc) == 0); 305 306 if (sa.st_size + 1 != sb.st_size) 307 atf_tc_fail("invalid file size"); 308 309 if (sb.st_size != sc.st_size) 310 atf_tc_fail("stat(2) and fstat(2) mismatch"); 311 } 312 313 ATF_REQUIRE(close(fd) == 0); 314 ATF_REQUIRE(unlink(path) == 0); 315 } 316 317 ATF_TC_CLEANUP(stat_size, tc) 318 { 319 (void)unlink(path); 320 } 321 322 ATF_TC_WITH_CLEANUP(stat_symlink); 323 ATF_TC_HEAD(stat_symlink, tc) 324 { 325 atf_tc_set_md_var(tc, "descr", "Test symbolic links with stat(2)"); 326 } 327 328 ATF_TC_BODY(stat_symlink, tc) 329 { 330 const char *pathlink = "pathlink"; 331 struct stat sa, sb; 332 int fd; 333 334 (void)memset(&sa, 0, sizeof(struct stat)); 335 (void)memset(&sb, 0, sizeof(struct stat)); 336 337 fd = open(path, O_WRONLY | O_CREAT); 338 339 ATF_REQUIRE(fd >= 0); 340 ATF_REQUIRE(symlink(path, pathlink) == 0); 341 ATF_REQUIRE(stat(pathlink, &sa) == 0); 342 ATF_REQUIRE(lstat(pathlink, &sb) == 0); 343 344 if (S_ISLNK(sa.st_mode) != 0) 345 atf_tc_fail("stat(2) detected symbolic link"); 346 347 if (S_ISLNK(sb.st_mode) == 0) 348 atf_tc_fail("lstat(2) did not detect symbolic link"); 349 350 if (sa.st_mode == sb.st_mode) 351 atf_tc_fail("inconsistencies between stat(2) and lstat(2)"); 352 353 ATF_REQUIRE(unlink(path) == 0); 354 ATF_REQUIRE(unlink(pathlink) == 0); 355 } 356 357 ATF_TC_CLEANUP(stat_symlink, tc) 358 { 359 (void)unlink(path); 360 } 361 362 ATF_TP_ADD_TCS(tp) 363 { 364 365 ATF_TP_ADD_TC(tp, stat_chflags); 366 ATF_TP_ADD_TC(tp, stat_dir); 367 ATF_TP_ADD_TC(tp, stat_err); 368 ATF_TP_ADD_TC(tp, stat_mtime); 369 ATF_TP_ADD_TC(tp, stat_perm); 370 ATF_TP_ADD_TC(tp, stat_size); 371 ATF_TP_ADD_TC(tp, stat_symlink); 372 373 return atf_no_error(); 374 } 375
Indexes created Tue Sep 23 02:09:52 GMT 2025