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 46typedef __dev_t dev_t; 47# define __dev_t_defined 48# endif 49 50# ifndef __gid_t_defined 51typedef __gid_t gid_t; 52# define __gid_t_defined 53# endif 54 55# ifndef __ino_t_defined 56# ifndef __USE_FILE_OFFSET64 57typedef __ino_t ino_t; 58# else 59typedef __ino64_t ino_t; 60# endif 61# define __ino_t_defined 62# endif 63 64# ifndef __mode_t_defined 65typedef __mode_t mode_t; 66# define __mode_t_defined 67# endif 68 69# ifndef __nlink_t_defined 70typedef __nlink_t nlink_t; 71# define __nlink_t_defined 72# endif 73 74# ifndef __off_t_defined 75# ifndef __USE_FILE_OFFSET64 76typedef __off_t off_t; 77# else 78typedef __off64_t off_t; 79# endif 80# define __off_t_defined 81# endif 82 83# ifndef __uid_t_defined 84typedef __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 92typedef __blkcnt_t blkcnt_t; 93# else 94typedef __blkcnt64_t blkcnt_t; 95# endif 96# define __blkcnt_t_defined 97# endif 98 99# ifndef __blksize_t_defined 100typedef __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. */ 209extern int stat (__const char *__restrict __file, 210 struct stat *__restrict __buf) __THROW __nonnull ((1, 2)); 211 212/* Get file attributes for the file, device, pipe, or socket 213 that file descriptor FD is open on and put them in BUF. */ 214extern int fstat (int __fd, struct stat *__buf) __THROW __nonnull ((2)); 215#else 216# ifdef __REDIRECT_NTH 217extern int __REDIRECT_NTH (stat, (__const char *__restrict __file, 218 struct stat *__restrict __buf), stat64) 219 __nonnull ((1, 2)); 220extern int __REDIRECT_NTH (fstat, (int __fd, struct stat *__buf), fstat64) 221 __nonnull ((2)); 222# else 223# define stat stat64 224# define fstat fstat64 225# endif 226#endif 227#ifdef __USE_LARGEFILE64 228extern int stat64 (__const char *__restrict __file, 229 struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2)); 230extern int fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2)); 231#endif 232 233#ifdef __USE_ATFILE 234/* Similar to stat, get the attributes for FILE and put them in BUF. 235 Relative path names are interpreted relative to FD unless FD is 236 AT_FDCWD. */ 237# ifndef __USE_FILE_OFFSET64 238extern int fstatat (int __fd, __const char *__restrict __file, 239 struct stat *__restrict __buf, int __flag) 240 __THROW __nonnull ((2, 3)); 241# else 242# ifdef __REDIRECT_NTH 243extern int __REDIRECT_NTH (fstatat, (int __fd, __const char *__restrict __file, 244 struct stat *__restrict __buf, 245 int __flag), 246 fstatat64) __nonnull ((2, 3)); 247# else 248# define fstatat fstatat64 249# endif 250# endif 251 252# ifdef __USE_LARGEFILE64 253extern int fstatat64 (int __fd, __const char *__restrict __file, 254 struct stat64 *__restrict __buf, int __flag) 255 __THROW __nonnull ((2, 3)); 256# endif 257#endif 258 259#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K 260# ifndef __USE_FILE_OFFSET64 261/* Get file attributes about FILE and put them in BUF. 262 If FILE is a symbolic link, do not follow it. */ 263extern int lstat (__const char *__restrict __file, 264 struct stat *__restrict __buf) __THROW __nonnull ((1, 2)); 265# else 266# ifdef __REDIRECT_NTH 267extern int __REDIRECT_NTH (lstat, 268 (__const char *__restrict __file, 269 struct stat *__restrict __buf), lstat64) 270 __nonnull ((1, 2)); 271# else 272# define lstat lstat64 273# endif 274# endif 275# ifdef __USE_LARGEFILE64 276extern int lstat64 (__const char *__restrict __file, 277 struct stat64 *__restrict __buf) 278 __THROW __nonnull ((1, 2)); 279# endif 280#endif 281 282/* Set file access permissions for FILE to MODE. 283 If FILE is a symbolic link, this affects its target instead. */ 284extern int chmod (__const char *__file, __mode_t __mode) 285 __THROW __nonnull ((1)); 286 287#if 0 /*def __USE_BSD*/ 288/* Set file access permissions for FILE to MODE. 289 If FILE is a symbolic link, this affects the link itself 290 rather than its target. */ 291extern int lchmod (__const char *__file, __mode_t __mode) 292 __THROW __nonnull ((1)); 293#endif 294 295/* Set file access permissions of the file FD is open on to MODE. */ 296#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED 297extern int fchmod (int __fd, __mode_t __mode) __THROW; 298#endif 299 300#ifdef __USE_ATFILE 301/* Set file access permissions of FILE relative to 302 the directory FD is open on. */ 303extern int fchmodat (int __fd, __const char *__file, __mode_t __mode, 304 int __flag) 305 __THROW __nonnull ((2)) __wur; 306#endif /* Use ATFILE. */ 307 308 309 310/* Set the file creation mask of the current process to MASK, 311 and return the old creation mask. */ 312extern __mode_t umask (__mode_t __mask) __THROW; 313 314#if 0 /*def __USE_GNU*/ 315/* Get the current `umask' value without changing it. 316 This function is only available under the GNU Hurd. */ 317extern __mode_t getumask (void) __THROW; 318#endif 319 320/* Create a new directory named PATH, with permission bits MODE. */ 321extern int mkdir (__const char *__path, __mode_t __mode) 322 __THROW __nonnull ((1)); 323 324#ifdef __USE_ATFILE 325/* Like mkdir, create a new directory with permission bits MODE. But 326 interpret relative PATH names relative to the directory associated 327 with FD. */ 328extern int mkdirat (int __fd, __const char *__path, __mode_t __mode) 329 __THROW __nonnull ((2)); 330#endif 331 332/* Create a device file named PATH, with permission and special bits MODE 333 and device number DEV (which can be constructed from major and minor 334 device numbers with the `makedev' macro above). */ 335#if defined __USE_MISC || defined __USE_BSD || defined __USE_XOPEN_EXTENDED 336extern int mknod (__const char *__path, __mode_t __mode, __dev_t __dev) 337 __THROW __nonnull ((1)); 338 339# ifdef __USE_ATFILE 340/* Like mknod, create a new device file with permission bits MODE and 341 device number DEV. But interpret relative PATH names relative to 342 the directory associated with FD. */ 343extern int mknodat (int __fd, __const char *__path, __mode_t __mode, 344 __dev_t __dev) __THROW __nonnull ((2)); 345# endif 346#endif 347 348 349/* Create a new FIFO named PATH, with permission bits MODE. */ 350extern int mkfifo (__const char *__path, __mode_t __mode) 351 __THROW __nonnull ((1)); 352 353#ifdef __USE_ATFILE 354/* Like mkfifo, create a new FIFO with permission bits MODE. But 355 interpret relative PATH names relative to the directory associated 356 with FD. */ 357extern int mkfifoat (int __fd, __const char *__path, __mode_t __mode) 358 __THROW __nonnull ((2)); 359#endif 360 361#ifdef __USE_ATFILE 362/* Set file access and modification times relative to directory file 363 descriptor. */ 364extern int utimensat (int __fd, __const char *__path, 365 __const struct timespec __times[2], 366 int __flags) 367 __THROW __nonnull ((2)); 368#endif 369 370#ifdef __USE_XOPEN2K8 371/* Set file access and modification times of the file associated with FD. */ 372extern int futimens (int __fd, __const struct timespec __times[2]) __THROW; 373#endif 374 375/* on uClibc we have unversioned struct stat and mknod. 376 * bits/stat.h is filled with wrong info, so we undo it here. */ 377#undef _STAT_VER 378#define _STAT_VER 0 379#undef _MKNOD_VER 380#define _MKNOD_VER 0 381 382__END_DECLS 383 384 385#endif /* sys/stat.h */ 386