lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 1991, 1992, 1995-2004, 2005, 2006, 2007, 2009 |
| 2 | Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | /* |
| 21 | * POSIX Standard: 5.6 File Characteristics <sys/stat.h> |
| 22 | */ |
| 23 | |
| 24 | #ifndef _SYS_STAT_H |
| 25 | #define _SYS_STAT_H 1 |
| 26 | |
| 27 | #include <features.h> |
| 28 | |
| 29 | #include <bits/types.h> /* For __mode_t and __dev_t. */ |
| 30 | |
| 31 | #if defined __USE_XOPEN || defined __USE_XOPEN2K || defined __USE_MISC \ |
| 32 | || defined __USE_ATFILE |
| 33 | # if defined __USE_XOPEN || defined __USE_XOPEN2K |
| 34 | # define __need_time_t |
| 35 | # endif |
| 36 | # if defined __USE_MISC || defined __USE_ATFILE |
| 37 | # define __need_timespec |
| 38 | # endif |
| 39 | # include <time.h> /* For time_t resp. timespec. */ |
| 40 | #endif |
| 41 | |
| 42 | #if defined __USE_XOPEN || defined __USE_XOPEN2K |
| 43 | /* The Single Unix specification says that some more types are |
| 44 | available here. */ |
| 45 | # ifndef __dev_t_defined |
| 46 | typedef __dev_t dev_t; |
| 47 | # define __dev_t_defined |
| 48 | # endif |
| 49 | |
| 50 | # ifndef __gid_t_defined |
| 51 | typedef __gid_t gid_t; |
| 52 | # define __gid_t_defined |
| 53 | # endif |
| 54 | |
| 55 | # ifndef __ino_t_defined |
| 56 | # ifndef __USE_FILE_OFFSET64 |
| 57 | typedef __ino_t ino_t; |
| 58 | # else |
| 59 | typedef __ino64_t ino_t; |
| 60 | # endif |
| 61 | # define __ino_t_defined |
| 62 | # endif |
| 63 | |
| 64 | # ifndef __mode_t_defined |
| 65 | typedef __mode_t mode_t; |
| 66 | # define __mode_t_defined |
| 67 | # endif |
| 68 | |
| 69 | # ifndef __nlink_t_defined |
| 70 | typedef __nlink_t nlink_t; |
| 71 | # define __nlink_t_defined |
| 72 | # endif |
| 73 | |
| 74 | # ifndef __off_t_defined |
| 75 | # ifndef __USE_FILE_OFFSET64 |
| 76 | typedef __off_t off_t; |
| 77 | # else |
| 78 | typedef __off64_t off_t; |
| 79 | # endif |
| 80 | # define __off_t_defined |
| 81 | # endif |
| 82 | |
| 83 | # ifndef __uid_t_defined |
| 84 | typedef __uid_t uid_t; |
| 85 | # define __uid_t_defined |
| 86 | # endif |
| 87 | #endif /* X/Open */ |
| 88 | |
| 89 | #ifdef __USE_UNIX98 |
| 90 | # ifndef __blkcnt_t_defined |
| 91 | # ifndef __USE_FILE_OFFSET64 |
| 92 | typedef __blkcnt_t blkcnt_t; |
| 93 | # else |
| 94 | typedef __blkcnt64_t blkcnt_t; |
| 95 | # endif |
| 96 | # define __blkcnt_t_defined |
| 97 | # endif |
| 98 | |
| 99 | # ifndef __blksize_t_defined |
| 100 | typedef __blksize_t blksize_t; |
| 101 | # define __blksize_t_defined |
| 102 | # endif |
| 103 | #endif /* Unix98 */ |
| 104 | |
| 105 | __BEGIN_DECLS |
| 106 | |
| 107 | #include <bits/stat.h> |
| 108 | |
| 109 | #if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN |
| 110 | # define S_IFMT __S_IFMT |
| 111 | # define S_IFDIR __S_IFDIR |
| 112 | # define S_IFCHR __S_IFCHR |
| 113 | # define S_IFBLK __S_IFBLK |
| 114 | # define S_IFREG __S_IFREG |
| 115 | # ifdef __S_IFIFO |
| 116 | # define S_IFIFO __S_IFIFO |
| 117 | # endif |
| 118 | # ifdef __S_IFLNK |
| 119 | # define S_IFLNK __S_IFLNK |
| 120 | # endif |
| 121 | # if (defined __USE_BSD || defined __USE_MISC || defined __USE_UNIX98) \ |
| 122 | && defined __S_IFSOCK |
| 123 | # define S_IFSOCK __S_IFSOCK |
| 124 | # endif |
| 125 | #endif |
| 126 | |
| 127 | /* Test macros for file types. */ |
| 128 | |
| 129 | #define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask)) |
| 130 | |
| 131 | #define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR) |
| 132 | #define S_ISCHR(mode) __S_ISTYPE((mode), __S_IFCHR) |
| 133 | #define S_ISBLK(mode) __S_ISTYPE((mode), __S_IFBLK) |
| 134 | #define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG) |
| 135 | #ifdef __S_IFIFO |
| 136 | # define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFIFO) |
| 137 | #endif |
| 138 | #ifdef __S_IFLNK |
| 139 | # define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) |
| 140 | #endif |
| 141 | |
| 142 | #if defined __USE_BSD && !defined __S_IFLNK |
| 143 | # define S_ISLNK(mode) 0 |
| 144 | #endif |
| 145 | |
| 146 | #if (defined __USE_BSD || defined __USE_UNIX98) \ |
| 147 | && defined __S_IFSOCK |
| 148 | # define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK) |
| 149 | #endif |
| 150 | |
| 151 | /* These are from POSIX.1b. If the objects are not implemented using separate |
| 152 | distinct file types, the macros always will evaluate to zero. Unlike the |
| 153 | other S_* macros the following three take a pointer to a `struct stat' |
| 154 | object as the argument. */ |
| 155 | #ifdef __USE_POSIX199309 |
| 156 | # define S_TYPEISMQ(buf) __S_TYPEISMQ(buf) |
| 157 | # define S_TYPEISSEM(buf) __S_TYPEISSEM(buf) |
| 158 | # define S_TYPEISSHM(buf) __S_TYPEISSHM(buf) |
| 159 | #endif |
| 160 | |
| 161 | |
| 162 | /* Protection bits. */ |
| 163 | |
| 164 | #define S_ISUID __S_ISUID /* Set user ID on execution. */ |
| 165 | #define S_ISGID __S_ISGID /* Set group ID on execution. */ |
| 166 | |
| 167 | #if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN |
| 168 | /* Save swapped text after use (sticky bit). This is pretty well obsolete. */ |
| 169 | # define S_ISVTX __S_ISVTX |
| 170 | #endif |
| 171 | |
| 172 | #define S_IRUSR __S_IREAD /* Read by owner. */ |
| 173 | #define S_IWUSR __S_IWRITE /* Write by owner. */ |
| 174 | #define S_IXUSR __S_IEXEC /* Execute by owner. */ |
| 175 | /* Read, write, and execute by owner. */ |
| 176 | #define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC) |
| 177 | |
| 178 | #if defined __USE_MISC && defined __USE_BSD |
| 179 | # define S_IREAD S_IRUSR |
| 180 | # define S_IWRITE S_IWUSR |
| 181 | # define S_IEXEC S_IXUSR |
| 182 | #endif |
| 183 | |
| 184 | #define S_IRGRP (S_IRUSR >> 3) /* Read by group. */ |
| 185 | #define S_IWGRP (S_IWUSR >> 3) /* Write by group. */ |
| 186 | #define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */ |
| 187 | /* Read, write, and execute by group. */ |
| 188 | #define S_IRWXG (S_IRWXU >> 3) |
| 189 | |
| 190 | #define S_IROTH (S_IRGRP >> 3) /* Read by others. */ |
| 191 | #define S_IWOTH (S_IWGRP >> 3) /* Write by others. */ |
| 192 | #define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */ |
| 193 | /* Read, write, and execute by others. */ |
| 194 | #define S_IRWXO (S_IRWXG >> 3) |
| 195 | |
| 196 | |
| 197 | #ifdef __USE_BSD |
| 198 | /* Macros for common mode bit masks. */ |
| 199 | # define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */ |
| 200 | # define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */ |
| 201 | # define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/ |
| 202 | |
| 203 | # define S_BLKSIZE 512 /* Block size for `st_blocks'. */ |
| 204 | #endif |
| 205 | |
| 206 | |
| 207 | #ifndef __USE_FILE_OFFSET64 |
| 208 | /* Get file attributes for FILE and put them in BUF. */ |
| 209 | extern int stat (__const char *__restrict __file, |
| 210 | struct stat *__restrict __buf) __THROW __nonnull ((1, 2)); |
| 211 | libc_hidden_proto(stat) |
| 212 | |
| 213 | /* Get file attributes for the file, device, pipe, or socket |
| 214 | that file descriptor FD is open on and put them in BUF. */ |
| 215 | extern int fstat (int __fd, struct stat *__buf) __THROW __nonnull ((2)); |
| 216 | libc_hidden_proto(fstat) |
| 217 | #else |
| 218 | # ifdef __REDIRECT_NTH |
| 219 | extern int __REDIRECT_NTH (stat, (__const char *__restrict __file, |
| 220 | struct stat *__restrict __buf), stat64) |
| 221 | __nonnull ((1, 2)); |
| 222 | extern int __REDIRECT_NTH (fstat, (int __fd, struct stat *__buf), fstat64) |
| 223 | __nonnull ((2)); |
| 224 | # else |
| 225 | # define stat stat64 |
| 226 | # define fstat fstat64 |
| 227 | # endif |
| 228 | #endif |
| 229 | #ifdef __USE_LARGEFILE64 |
| 230 | extern int stat64 (__const char *__restrict __file, |
| 231 | struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2)); |
| 232 | extern int fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2)); |
| 233 | libc_hidden_proto(stat64) |
| 234 | libc_hidden_proto(fstat64) |
| 235 | #endif |
| 236 | |
| 237 | #ifdef __USE_ATFILE |
| 238 | /* Similar to stat, get the attributes for FILE and put them in BUF. |
| 239 | Relative path names are interpreted relative to FD unless FD is |
| 240 | AT_FDCWD. */ |
| 241 | # ifndef __USE_FILE_OFFSET64 |
| 242 | extern int fstatat (int __fd, __const char *__restrict __file, |
| 243 | struct stat *__restrict __buf, int __flag) |
| 244 | __THROW __nonnull ((2, 3)); |
| 245 | # else |
| 246 | # ifdef __REDIRECT_NTH |
| 247 | extern int __REDIRECT_NTH (fstatat, (int __fd, __const char *__restrict __file, |
| 248 | struct stat *__restrict __buf, |
| 249 | int __flag), |
| 250 | fstatat64) __nonnull ((2, 3)); |
| 251 | # else |
| 252 | # define fstatat fstatat64 |
| 253 | # endif |
| 254 | # endif |
| 255 | |
| 256 | # ifdef __USE_LARGEFILE64 |
| 257 | extern int fstatat64 (int __fd, __const char *__restrict __file, |
| 258 | struct stat64 *__restrict __buf, int __flag) |
| 259 | __THROW __nonnull ((2, 3)); |
| 260 | # endif |
| 261 | #endif |
| 262 | |
| 263 | #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K |
| 264 | # ifndef __USE_FILE_OFFSET64 |
| 265 | /* Get file attributes about FILE and put them in BUF. |
| 266 | If FILE is a symbolic link, do not follow it. */ |
| 267 | extern int lstat (__const char *__restrict __file, |
| 268 | struct stat *__restrict __buf) __THROW __nonnull ((1, 2)); |
| 269 | libc_hidden_proto(lstat) |
| 270 | # else |
| 271 | # ifdef __REDIRECT_NTH |
| 272 | extern int __REDIRECT_NTH (lstat, |
| 273 | (__const char *__restrict __file, |
| 274 | struct stat *__restrict __buf), lstat64) |
| 275 | __nonnull ((1, 2)); |
| 276 | # else |
| 277 | # define lstat lstat64 |
| 278 | # endif |
| 279 | # endif |
| 280 | # ifdef __USE_LARGEFILE64 |
| 281 | extern int lstat64 (__const char *__restrict __file, |
| 282 | struct stat64 *__restrict __buf) |
| 283 | __THROW __nonnull ((1, 2)); |
| 284 | libc_hidden_proto(lstat64) |
| 285 | # endif |
| 286 | #endif |
| 287 | |
| 288 | /* Set file access permissions for FILE to MODE. |
| 289 | If FILE is a symbolic link, this affects its target instead. */ |
| 290 | extern int chmod (__const char *__file, __mode_t __mode) |
| 291 | __THROW __nonnull ((1)); |
| 292 | libc_hidden_proto(chmod) |
| 293 | |
| 294 | #if 0 /*def __USE_BSD*/ |
| 295 | /* Set file access permissions for FILE to MODE. |
| 296 | If FILE is a symbolic link, this affects the link itself |
| 297 | rather than its target. */ |
| 298 | extern int lchmod (__const char *__file, __mode_t __mode) |
| 299 | __THROW __nonnull ((1)); |
| 300 | #endif |
| 301 | |
| 302 | /* Set file access permissions of the file FD is open on to MODE. */ |
| 303 | #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED |
| 304 | extern int fchmod (int __fd, __mode_t __mode) __THROW; |
| 305 | #endif |
| 306 | |
| 307 | #ifdef __USE_ATFILE |
| 308 | /* Set file access permissions of FILE relative to |
| 309 | the directory FD is open on. */ |
| 310 | extern int fchmodat (int __fd, __const char *__file, __mode_t __mode, |
| 311 | int __flag) |
| 312 | __THROW __nonnull ((2)) __wur; |
| 313 | #endif /* Use ATFILE. */ |
| 314 | |
| 315 | |
| 316 | |
| 317 | /* Set the file creation mask of the current process to MASK, |
| 318 | and return the old creation mask. */ |
| 319 | extern __mode_t umask (__mode_t __mask) __THROW; |
| 320 | |
| 321 | #if 0 /*def __USE_GNU*/ |
| 322 | /* Get the current `umask' value without changing it. |
| 323 | This function is only available under the GNU Hurd. */ |
| 324 | extern __mode_t getumask (void) __THROW; |
| 325 | #endif |
| 326 | |
| 327 | /* Create a new directory named PATH, with permission bits MODE. */ |
| 328 | extern int mkdir (__const char *__path, __mode_t __mode) |
| 329 | __THROW __nonnull ((1)); |
| 330 | libc_hidden_proto(mkdir) |
| 331 | |
| 332 | #ifdef __USE_ATFILE |
| 333 | /* Like mkdir, create a new directory with permission bits MODE. But |
| 334 | interpret relative PATH names relative to the directory associated |
| 335 | with FD. */ |
| 336 | extern int mkdirat (int __fd, __const char *__path, __mode_t __mode) |
| 337 | __THROW __nonnull ((2)); |
| 338 | #endif |
| 339 | |
| 340 | /* Create a device file named PATH, with permission and special bits MODE |
| 341 | and device number DEV (which can be constructed from major and minor |
| 342 | device numbers with the `makedev' macro above). */ |
| 343 | #if defined __USE_MISC || defined __USE_BSD || defined __USE_XOPEN_EXTENDED |
| 344 | extern int mknod (__const char *__path, __mode_t __mode, __dev_t __dev) |
| 345 | __THROW __nonnull ((1)); |
| 346 | libc_hidden_proto(mknod) |
| 347 | |
| 348 | # ifdef __USE_ATFILE |
| 349 | /* Like mknod, create a new device file with permission bits MODE and |
| 350 | device number DEV. But interpret relative PATH names relative to |
| 351 | the directory associated with FD. */ |
| 352 | extern int mknodat (int __fd, __const char *__path, __mode_t __mode, |
| 353 | __dev_t __dev) __THROW __nonnull ((2)); |
| 354 | libc_hidden_proto(mknodat) |
| 355 | # endif |
| 356 | #endif |
| 357 | |
| 358 | |
| 359 | /* Create a new FIFO named PATH, with permission bits MODE. */ |
| 360 | extern int mkfifo (__const char *__path, __mode_t __mode) |
| 361 | __THROW __nonnull ((1)); |
| 362 | |
| 363 | #ifdef __USE_ATFILE |
| 364 | /* Like mkfifo, create a new FIFO with permission bits MODE. But |
| 365 | interpret relative PATH names relative to the directory associated |
| 366 | with FD. */ |
| 367 | extern int mkfifoat (int __fd, __const char *__path, __mode_t __mode) |
| 368 | __THROW __nonnull ((2)); |
| 369 | #endif |
| 370 | |
| 371 | #ifdef __USE_ATFILE |
| 372 | /* Set file access and modification times relative to directory file |
| 373 | descriptor. */ |
| 374 | extern int utimensat (int __fd, __const char *__path, |
| 375 | __const struct timespec __times[2], |
| 376 | int __flags) |
| 377 | __THROW __nonnull ((2)); |
| 378 | libc_hidden_proto(utimensat) |
| 379 | #endif |
| 380 | |
| 381 | #ifdef __USE_XOPEN2K8 |
| 382 | /* Set file access and modification times of the file associated with FD. */ |
| 383 | extern int futimens (int __fd, __const struct timespec __times[2]) __THROW; |
| 384 | #endif |
| 385 | |
| 386 | /* on uClibc we have unversioned struct stat and mknod. |
| 387 | * bits/stat.h is filled with wrong info, so we undo it here. */ |
| 388 | #undef _STAT_VER |
| 389 | #define _STAT_VER 0 |
| 390 | #undef _MKNOD_VER |
| 391 | #define _MKNOD_VER 0 |
| 392 | |
| 393 | __END_DECLS |
| 394 | |
| 395 | |
| 396 | #endif /* sys/stat.h */ |