modernc.org/cc@v1.0.1/v2/headers/linux_386/usr/include/i386-linux-gnu/sys/stat.h (about) 1 /* Copyright (C) 1991-2018 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <http://www.gnu.org/licenses/>. */ 17 18 /* 19 * POSIX Standard: 5.6 File Characteristics <sys/stat.h> 20 */ 21 22 #ifndef _SYS_STAT_H 23 #define _SYS_STAT_H 1 24 25 #include <features.h> 26 27 #include <bits/types.h> /* For __mode_t and __dev_t. */ 28 29 #ifdef __USE_XOPEN2K8 30 # include <bits/types/struct_timespec.h> 31 #endif 32 33 #if defined __USE_XOPEN || defined __USE_XOPEN2K 34 /* The Single Unix specification says that some more types are 35 available here. */ 36 37 # include <bits/types/time_t.h> 38 39 # ifndef __dev_t_defined 40 typedef __dev_t dev_t; 41 # define __dev_t_defined 42 # endif 43 44 # ifndef __gid_t_defined 45 typedef __gid_t gid_t; 46 # define __gid_t_defined 47 # endif 48 49 # ifndef __ino_t_defined 50 # ifndef __USE_FILE_OFFSET64 51 typedef __ino_t ino_t; 52 # else 53 typedef __ino64_t ino_t; 54 # endif 55 # define __ino_t_defined 56 # endif 57 58 # ifndef __mode_t_defined 59 typedef __mode_t mode_t; 60 # define __mode_t_defined 61 # endif 62 63 # ifndef __nlink_t_defined 64 typedef __nlink_t nlink_t; 65 # define __nlink_t_defined 66 # endif 67 68 # ifndef __off_t_defined 69 # ifndef __USE_FILE_OFFSET64 70 typedef __off_t off_t; 71 # else 72 typedef __off64_t off_t; 73 # endif 74 # define __off_t_defined 75 # endif 76 77 # ifndef __uid_t_defined 78 typedef __uid_t uid_t; 79 # define __uid_t_defined 80 # endif 81 #endif /* X/Open */ 82 83 #ifdef __USE_UNIX98 84 # ifndef __blkcnt_t_defined 85 # ifndef __USE_FILE_OFFSET64 86 typedef __blkcnt_t blkcnt_t; 87 # else 88 typedef __blkcnt64_t blkcnt_t; 89 # endif 90 # define __blkcnt_t_defined 91 # endif 92 93 # ifndef __blksize_t_defined 94 typedef __blksize_t blksize_t; 95 # define __blksize_t_defined 96 # endif 97 #endif /* Unix98 */ 98 99 __BEGIN_DECLS 100 #include <bits/stat.h> 101 #if defined __USE_MISC || defined __USE_XOPEN 102 # define S_IFMT __S_IFMT 103 # define S_IFDIR __S_IFDIR 104 # define S_IFCHR __S_IFCHR 105 # define S_IFBLK __S_IFBLK 106 # define S_IFREG __S_IFREG 107 # ifdef __S_IFIFO 108 # define S_IFIFO __S_IFIFO 109 # endif 110 # ifdef __S_IFLNK 111 # define S_IFLNK __S_IFLNK 112 # endif 113 # if (defined __USE_MISC || defined __USE_XOPEN_EXTENDED) \ 114 && defined __S_IFSOCK 115 # define S_IFSOCK __S_IFSOCK 116 # endif 117 #endif 118 /* Test macros for file types. */ 119 #define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask)) 120 #define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR) 121 #define S_ISCHR(mode) __S_ISTYPE((mode), __S_IFCHR) 122 #define S_ISBLK(mode) __S_ISTYPE((mode), __S_IFBLK) 123 #define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG) 124 #ifdef __S_IFIFO 125 # define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFIFO) 126 #endif 127 #ifdef __S_IFLNK 128 # define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) 129 #endif 130 #if defined __USE_MISC && !defined __S_IFLNK 131 # define S_ISLNK(mode) 0 132 #endif 133 #if (defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K) \ 134 && defined __S_IFSOCK 135 # define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK) 136 #elif defined __USE_XOPEN2K 137 # define S_ISSOCK(mode) 0 138 #endif 139 /* These are from POSIX.1b. If the objects are not implemented using separate 140 distinct file types, the macros always will evaluate to zero. Unlike the 141 other S_* macros the following three take a pointer to a `struct stat' 142 object as the argument. */ 143 #ifdef __USE_POSIX199309 144 # define S_TYPEISMQ(buf) __S_TYPEISMQ(buf) 145 # define S_TYPEISSEM(buf) __S_TYPEISSEM(buf) 146 # define S_TYPEISSHM(buf) __S_TYPEISSHM(buf) 147 #endif 148 /* Protection bits. */ 149 #define S_ISUID __S_ISUID /* Set user ID on execution. */ 150 #define S_ISGID __S_ISGID /* Set group ID on execution. */ 151 #if defined __USE_MISC || defined __USE_XOPEN 152 /* Save swapped text after use (sticky bit). This is pretty well obsolete. */ 153 # define S_ISVTX __S_ISVTX 154 #endif 155 #define S_IRUSR __S_IREAD /* Read by owner. */ 156 #define S_IWUSR __S_IWRITE /* Write by owner. */ 157 #define S_IXUSR __S_IEXEC /* Execute by owner. */ 158 /* Read, write, and execute by owner. */ 159 #define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC) 160 #ifdef __USE_MISC 161 # define S_IREAD S_IRUSR 162 # define S_IWRITE S_IWUSR 163 # define S_IEXEC S_IXUSR 164 #endif 165 #define S_IRGRP (S_IRUSR >> 3) /* Read by group. */ 166 #define S_IWGRP (S_IWUSR >> 3) /* Write by group. */ 167 #define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */ 168 /* Read, write, and execute by group. */ 169 #define S_IRWXG (S_IRWXU >> 3) 170 #define S_IROTH (S_IRGRP >> 3) /* Read by others. */ 171 #define S_IWOTH (S_IWGRP >> 3) /* Write by others. */ 172 #define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */ 173 /* Read, write, and execute by others. */ 174 #define S_IRWXO (S_IRWXG >> 3) 175 #ifdef __USE_MISC 176 /* Macros for common mode bit masks. */ 177 # define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */ 178 # define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) /* 07777 */ 179 # define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) /* 0666 */ 180 # define S_BLKSIZE 512 /* Block size for `st_blocks'. */ 181 #endif 182 #ifndef __USE_FILE_OFFSET64 183 /* Get file attributes for FILE and put them in BUF. */ 184 extern int stat(const char *__restrict __file, struct stat *__restrict __buf) 185 __THROW __nonnull((1, 2)); 186 187 /* Get file attributes for the file, device, pipe, or socket 188 that file descriptor FD is open on and put them in BUF. */ 189 extern int fstat(int __fd, struct stat *__buf) 190 __THROW __nonnull((2)); 191 #else 192 # ifdef __REDIRECT_NTH 193 extern int __REDIRECT_NTH(stat, (const char *__restrict __file, struct stat * __restrict __buf), stat64) __nonnull((1, 2)); 194 extern int __REDIRECT_NTH(fstat, (int __fd, struct stat * __buf), fstat64) __nonnull((2)); 195 # else 196 # define stat stat64 197 # define fstat fstat64 198 # endif 199 #endif 200 #ifdef __USE_LARGEFILE64 201 extern int stat64(const char *__restrict __file, struct stat64 *__restrict __buf) 202 __THROW __nonnull((1, 2)); 203 extern int fstat64(int __fd, struct stat64 *__buf) 204 __THROW __nonnull((2)); 205 #endif 206 207 #ifdef __USE_ATFILE 208 /* Similar to stat, get the attributes for FILE and put them in BUF. 209 Relative path names are interpreted relative to FD unless FD is 210 AT_FDCWD. */ 211 # ifndef __USE_FILE_OFFSET64 212 extern int fstatat(int __fd, const char *__restrict __file, struct stat *__restrict __buf, int __flag) 213 __THROW __nonnull((2, 3)); 214 # else 215 # ifdef __REDIRECT_NTH 216 extern int __REDIRECT_NTH(fstatat, (int __fd, const char *__restrict __file, struct stat * __restrict __buf, int __flag), fstatat64) __nonnull((2, 3)); 217 # else 218 # define fstatat fstatat64 219 # endif 220 # endif 221 222 # ifdef __USE_LARGEFILE64 223 extern int fstatat64(int __fd, const char *__restrict __file, struct stat64 *__restrict __buf, int __flag) 224 __THROW __nonnull((2, 3)); 225 # endif 226 #endif 227 228 #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K 229 # ifndef __USE_FILE_OFFSET64 230 /* Get file attributes about FILE and put them in BUF. 231 If FILE is a symbolic link, do not follow it. */ 232 extern int lstat(const char *__restrict __file, struct stat *__restrict __buf) 233 __THROW __nonnull((1, 2)); 234 # else 235 # ifdef __REDIRECT_NTH 236 extern int __REDIRECT_NTH(lstat, (const char *__restrict __file, struct stat * __restrict __buf), lstat64) __nonnull((1, 2)); 237 # else 238 # define lstat lstat64 239 # endif 240 # endif 241 # ifdef __USE_LARGEFILE64 242 extern int lstat64(const char *__restrict __file, struct stat64 *__restrict __buf) 243 __THROW __nonnull((1, 2)); 244 # endif 245 #endif 246 247 /* Set file access permissions for FILE to MODE. 248 If FILE is a symbolic link, this affects its target instead. */ 249 extern int chmod(const char *__file, __mode_t __mode) 250 __THROW __nonnull((1)); 251 252 #ifdef __USE_MISC 253 /* Set file access permissions for FILE to MODE. 254 If FILE is a symbolic link, this affects the link itself 255 rather than its target. */ 256 extern int lchmod(const char *__file, __mode_t __mode) 257 __THROW __nonnull((1)); 258 #endif 259 260 /* Set file access permissions of the file FD is open on to MODE. */ 261 #if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED 262 extern int fchmod(int __fd, __mode_t __mode) __THROW; 263 #endif 264 265 #ifdef __USE_ATFILE 266 /* Set file access permissions of FILE relative to 267 the directory FD is open on. */ 268 extern int fchmodat(int __fd, const char *__file, __mode_t __mode, int __flag) 269 __THROW __nonnull((2)) __wur; 270 #endif /* Use ATFILE. */ 271 272 /* Set the file creation mask of the current process to MASK, 273 and return the old creation mask. */ 274 extern __mode_t umask(__mode_t __mask) __THROW; 275 276 #ifdef __USE_GNU 277 /* Get the current `umask' value without changing it. 278 This function is only available under the GNU Hurd. */ 279 extern __mode_t getumask(void) __THROW; 280 #endif 281 282 /* Create a new directory named PATH, with permission bits MODE. */ 283 extern int mkdir(const char *__path, __mode_t __mode) 284 __THROW __nonnull((1)); 285 286 #ifdef __USE_ATFILE 287 /* Like mkdir, create a new directory with permission bits MODE. But 288 interpret relative PATH names relative to the directory associated 289 with FD. */ 290 extern int mkdirat(int __fd, const char *__path, __mode_t __mode) 291 __THROW __nonnull((2)); 292 #endif 293 294 /* Create a device file named PATH, with permission and special bits MODE 295 and device number DEV (which can be constructed from major and minor 296 device numbers with the `makedev' macro above). */ 297 #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED 298 extern int mknod(const char *__path, __mode_t __mode, __dev_t __dev) 299 __THROW __nonnull((1)); 300 301 # ifdef __USE_ATFILE 302 /* Like mknod, create a new device file with permission bits MODE and 303 device number DEV. But interpret relative PATH names relative to 304 the directory associated with FD. */ 305 extern int mknodat(int __fd, const char *__path, __mode_t __mode, __dev_t __dev) 306 __THROW __nonnull((2)); 307 # endif 308 #endif 309 310 /* Create a new FIFO named PATH, with permission bits MODE. */ 311 extern int mkfifo(const char *__path, __mode_t __mode) 312 __THROW __nonnull((1)); 313 314 #ifdef __USE_ATFILE 315 /* Like mkfifo, create a new FIFO with permission bits MODE. But 316 interpret relative PATH names relative to the directory associated 317 with FD. */ 318 extern int mkfifoat(int __fd, const char *__path, __mode_t __mode) 319 __THROW __nonnull((2)); 320 #endif 321 322 #ifdef __USE_ATFILE 323 /* Set file access and modification times relative to directory file 324 descriptor. */ 325 extern int utimensat(int __fd, const char *__path, const struct timespec __times[2], int __flags) 326 __THROW __nonnull((2)); 327 #endif 328 329 #ifdef __USE_XOPEN2K8 330 /* Set file access and modification times of the file associated with FD. */ 331 extern int futimens(int __fd, const struct timespec __times[2]) __THROW; 332 #endif 333 334 /* To allow the `struct stat' structure and the file type `mode_t' 335 bits to vary without changing shared library major version number, 336 the `stat' family of functions and `mknod' are in fact inline 337 wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod', 338 which all take a leading version-number argument designating the 339 data structure and bits used. <bits/stat.h> defines _STAT_VER with 340 the version number corresponding to `struct stat' as defined in 341 that file; and _MKNOD_VER with the version number corresponding to 342 the S_IF* macros defined therein. It is arranged that when not 343 inlined these function are always statically linked; that way a 344 dynamically-linked executable always encodes the version number 345 corresponding to the data structures it uses, so the `x' functions 346 in the shared library can adapt without needing to recompile all 347 callers. */ 348 349 #ifndef _STAT_VER 350 # define _STAT_VER 0 351 #endif 352 #ifndef _MKNOD_VER 353 # define _MKNOD_VER 0 354 #endif 355 356 /* Wrappers for stat and mknod system calls. */ 357 #ifndef __USE_FILE_OFFSET64 358 extern int __fxstat(int __ver, int __fildes, struct stat *__stat_buf) 359 __THROW __nonnull((3)); 360 extern int __xstat(int __ver, const char *__filename, struct stat *__stat_buf) 361 __THROW __nonnull((2, 3)); 362 extern int __lxstat(int __ver, const char *__filename, struct stat *__stat_buf) 363 __THROW __nonnull((2, 3)); 364 extern int __fxstatat(int __ver, int __fildes, const char *__filename, struct stat *__stat_buf, int __flag) 365 __THROW __nonnull((3, 4)); 366 #else 367 # ifdef __REDIRECT_NTH 368 extern int __REDIRECT_NTH(__fxstat, (int __ver, int __fildes, struct stat * __stat_buf), __fxstat64) __nonnull((3)); 369 extern int __REDIRECT_NTH(__xstat, (int __ver, const char *__filename, struct stat * __stat_buf), __xstat64) __nonnull((2, 3)); 370 extern int __REDIRECT_NTH(__lxstat, (int __ver, const char *__filename, struct stat * __stat_buf), __lxstat64) __nonnull((2, 3)); 371 extern int __REDIRECT_NTH(__fxstatat, (int __ver, int __fildes, const char *__filename, struct stat * __stat_buf, int __flag), __fxstatat64) __nonnull((3, 4)); 372 373 # else 374 # define __fxstat __fxstat64 375 # define __xstat __xstat64 376 # define __lxstat __lxstat64 377 # endif 378 #endif 379 380 #ifdef __USE_LARGEFILE64 381 extern int __fxstat64(int __ver, int __fildes, struct stat64 *__stat_buf) 382 __THROW __nonnull((3)); 383 extern int __xstat64(int __ver, const char *__filename, struct stat64 *__stat_buf) 384 __THROW __nonnull((2, 3)); 385 extern int __lxstat64(int __ver, const char *__filename, struct stat64 *__stat_buf) 386 __THROW __nonnull((2, 3)); 387 extern int __fxstatat64(int __ver, int __fildes, const char *__filename, struct stat64 *__stat_buf, int __flag) 388 __THROW __nonnull((3, 4)); 389 #endif 390 extern int __xmknod(int __ver, const char *__path, __mode_t __mode, __dev_t * __dev) 391 __THROW __nonnull((2, 4)); 392 393 extern int __xmknodat(int __ver, int __fd, const char *__path, __mode_t __mode, __dev_t * __dev) 394 __THROW __nonnull((3, 5)); 395 396 #ifdef __USE_EXTERN_INLINES 397 /* Inlined versions of the real stat and mknod functions. */ 398 399 __extern_inline int __NTH(stat(const char *__path, struct stat *__statbuf)) 400 { 401 return __xstat(_STAT_VER, __path, __statbuf); 402 } 403 404 # if defined __USE_MISC || defined __USE_XOPEN_EXTENDED 405 __extern_inline int __NTH(lstat(const char *__path, struct stat *__statbuf)) 406 { 407 return __lxstat(_STAT_VER, __path, __statbuf); 408 } 409 # endif 410 411 __extern_inline int __NTH(fstat(int __fd, struct stat *__statbuf)) 412 { 413 return __fxstat(_STAT_VER, __fd, __statbuf); 414 } 415 416 # ifdef __USE_ATFILE 417 __extern_inline int __NTH(fstatat(int __fd, const char *__filename, struct stat *__statbuf, int __flag)) 418 { 419 return __fxstatat(_STAT_VER, __fd, __filename, __statbuf, __flag); 420 } 421 # endif 422 423 # ifdef __USE_MISC 424 __extern_inline int __NTH(mknod(const char *__path, __mode_t __mode, __dev_t __dev)) 425 { 426 return __xmknod(_MKNOD_VER, __path, __mode, &__dev); 427 } 428 # endif 429 430 # ifdef __USE_ATFILE 431 __extern_inline int __NTH(mknodat(int __fd, const char *__path, __mode_t __mode, __dev_t __dev)) 432 { 433 return __xmknodat(_MKNOD_VER, __fd, __path, __mode, &__dev); 434 } 435 # endif 436 437 # if defined __USE_LARGEFILE64 \ 438 && (! defined __USE_FILE_OFFSET64 \ 439 || (defined __REDIRECT_NTH && defined __OPTIMIZE__)) 440 __extern_inline int __NTH(stat64(const char *__path, struct stat64 *__statbuf)) 441 { 442 return __xstat64(_STAT_VER, __path, __statbuf); 443 } 444 445 # if defined __USE_MISC || defined __USE_XOPEN_EXTENDED 446 __extern_inline int __NTH(lstat64(const char *__path, struct stat64 *__statbuf)) 447 { 448 return __lxstat64(_STAT_VER, __path, __statbuf); 449 } 450 # endif 451 452 __extern_inline int __NTH(fstat64(int __fd, struct stat64 *__statbuf)) 453 { 454 return __fxstat64(_STAT_VER, __fd, __statbuf); 455 } 456 457 # ifdef __USE_ATFILE 458 __extern_inline int __NTH(fstatat64(int __fd, const char *__filename, struct stat64 *__statbuf, int __flag)) 459 { 460 return __fxstatat64(_STAT_VER, __fd, __filename, __statbuf, __flag); 461 } 462 # endif 463 464 # endif 465 466 #endif 467 468 __END_DECLS 469 #endif /* sys/stat.h */