| /* Copyright (C) 1991, 1992, 1995-2004, 2005, 2006, 2007, 2009, 2010 |
| Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| /* |
| * POSIX Standard: 5.6 File Characteristics <sys/stat.h> |
| */ |
| |
| #ifndef _SYS_STAT_H |
| #define _SYS_STAT_H 1 |
| |
| #include <features.h> |
| |
| #include <bits/types.h> /* For __mode_t and __dev_t. */ |
| |
| #if defined __USE_XOPEN || defined __USE_XOPEN2K || defined __USE_MISC \ |
| || defined __USE_ATFILE |
| # if defined __USE_XOPEN || defined __USE_XOPEN2K |
| # define __need_time_t |
| # endif |
| # if defined __USE_MISC || defined __USE_ATFILE |
| # define __need_timespec |
| # endif |
| # include <time.h> /* For time_t resp. timespec. */ |
| #endif |
| |
| #if defined __USE_XOPEN || defined __USE_XOPEN2K |
| /* The Single Unix specification says that some more types are |
| available here. */ |
| # ifndef __dev_t_defined |
| typedef __dev_t dev_t; |
| # define __dev_t_defined |
| # endif |
| |
| # ifndef __gid_t_defined |
| typedef __gid_t gid_t; |
| # define __gid_t_defined |
| # endif |
| |
| # ifndef __ino_t_defined |
| # ifndef __USE_FILE_OFFSET64 |
| typedef __ino_t ino_t; |
| # else |
| typedef __ino64_t ino_t; |
| # endif |
| # define __ino_t_defined |
| # endif |
| |
| # ifndef __mode_t_defined |
| typedef __mode_t mode_t; |
| # define __mode_t_defined |
| # endif |
| |
| # ifndef __nlink_t_defined |
| typedef __nlink_t nlink_t; |
| # define __nlink_t_defined |
| # endif |
| |
| # ifndef __off_t_defined |
| # ifndef __USE_FILE_OFFSET64 |
| typedef __off_t off_t; |
| # else |
| typedef __off64_t off_t; |
| # endif |
| # define __off_t_defined |
| # endif |
| |
| # ifndef __uid_t_defined |
| typedef __uid_t uid_t; |
| # define __uid_t_defined |
| # endif |
| #endif /* X/Open */ |
| |
| #ifdef __USE_UNIX98 |
| # ifndef __blkcnt_t_defined |
| # ifndef __USE_FILE_OFFSET64 |
| typedef __blkcnt_t blkcnt_t; |
| # else |
| typedef __blkcnt64_t blkcnt_t; |
| # endif |
| # define __blkcnt_t_defined |
| # endif |
| |
| # ifndef __blksize_t_defined |
| typedef __blksize_t blksize_t; |
| # define __blksize_t_defined |
| # endif |
| #endif /* Unix98 */ |
| |
| __BEGIN_DECLS |
| |
| #include <bits/stat.h> |
| |
| #if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN |
| # define S_IFMT __S_IFMT |
| # define S_IFDIR __S_IFDIR |
| # define S_IFCHR __S_IFCHR |
| # define S_IFBLK __S_IFBLK |
| # define S_IFREG __S_IFREG |
| # ifdef __S_IFIFO |
| # define S_IFIFO __S_IFIFO |
| # endif |
| # ifdef __S_IFLNK |
| # define S_IFLNK __S_IFLNK |
| # endif |
| # if (defined __USE_BSD || defined __USE_MISC || defined __USE_UNIX98) \ |
| && defined __S_IFSOCK |
| # define S_IFSOCK __S_IFSOCK |
| # endif |
| #endif |
| |
| /* Test macros for file types. */ |
| |
| #define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask)) |
| |
| #define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR) |
| #define S_ISCHR(mode) __S_ISTYPE((mode), __S_IFCHR) |
| #define S_ISBLK(mode) __S_ISTYPE((mode), __S_IFBLK) |
| #define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG) |
| #ifdef __S_IFIFO |
| # define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFIFO) |
| #endif |
| #ifdef __S_IFLNK |
| # define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) |
| #endif |
| |
| #if defined __USE_BSD && !defined __S_IFLNK |
| # define S_ISLNK(mode) 0 |
| #endif |
| |
| #if (defined __USE_BSD || defined __USE_UNIX98 || defined __USE_XOPEN2K) \ |
| && defined __S_IFSOCK |
| # define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK) |
| #elif defined __USE_XOPEN2K |
| # define S_ISSOCK(mode) 0 |
| #endif |
| |
| /* These are from POSIX.1b. If the objects are not implemented using separate |
| distinct file types, the macros always will evaluate to zero. Unlike the |
| other S_* macros the following three take a pointer to a `struct stat' |
| object as the argument. */ |
| #ifdef __USE_POSIX199309 |
| # define S_TYPEISMQ(buf) __S_TYPEISMQ(buf) |
| # define S_TYPEISSEM(buf) __S_TYPEISSEM(buf) |
| # define S_TYPEISSHM(buf) __S_TYPEISSHM(buf) |
| #endif |
| |
| |
| /* Protection bits. */ |
| |
| #define S_ISUID __S_ISUID /* Set user ID on execution. */ |
| #define S_ISGID __S_ISGID /* Set group ID on execution. */ |
| |
| #if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN |
| /* Save swapped text after use (sticky bit). This is pretty well obsolete. */ |
| # define S_ISVTX __S_ISVTX |
| #endif |
| |
| #define S_IRUSR __S_IREAD /* Read by owner. */ |
| #define S_IWUSR __S_IWRITE /* Write by owner. */ |
| #define S_IXUSR __S_IEXEC /* Execute by owner. */ |
| /* Read, write, and execute by owner. */ |
| #define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC) |
| |
| #if defined __USE_MISC && defined __USE_BSD |
| # define S_IREAD S_IRUSR |
| # define S_IWRITE S_IWUSR |
| # define S_IEXEC S_IXUSR |
| #endif |
| |
| #define S_IRGRP (S_IRUSR >> 3) /* Read by group. */ |
| #define S_IWGRP (S_IWUSR >> 3) /* Write by group. */ |
| #define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */ |
| /* Read, write, and execute by group. */ |
| #define S_IRWXG (S_IRWXU >> 3) |
| |
| #define S_IROTH (S_IRGRP >> 3) /* Read by others. */ |
| #define S_IWOTH (S_IWGRP >> 3) /* Write by others. */ |
| #define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */ |
| /* Read, write, and execute by others. */ |
| #define S_IRWXO (S_IRWXG >> 3) |
| |
| |
| #ifdef __USE_BSD |
| /* Macros for common mode bit masks. */ |
| # define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */ |
| # define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */ |
| # define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/ |
| |
| # define S_BLKSIZE 512 /* Block size for `st_blocks'. */ |
| #endif |
| |
| |
| #ifndef __USE_FILE_OFFSET64 |
| /* Get file attributes for FILE and put them in BUF. */ |
| extern int stat (__const char *__restrict __file, |
| struct stat *__restrict __buf) __THROW __nonnull ((1, 2)); |
| |
| /* Get file attributes for the file, device, pipe, or socket |
| that file descriptor FD is open on and put them in BUF. */ |
| extern int fstat (int __fd, struct stat *__buf) __THROW __nonnull ((2)); |
| #else |
| # ifdef __REDIRECT_NTH |
| extern int __REDIRECT_NTH (stat, (__const char *__restrict __file, |
| struct stat *__restrict __buf), stat64) |
| __nonnull ((1, 2)); |
| extern int __REDIRECT_NTH (fstat, (int __fd, struct stat *__buf), fstat64) |
| __nonnull ((2)); |
| # else |
| # define stat stat64 |
| # define fstat fstat64 |
| # endif |
| #endif |
| #ifdef __USE_LARGEFILE64 |
| extern int stat64 (__const char *__restrict __file, |
| struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2)); |
| extern int fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2)); |
| #endif |
| |
| #ifdef __USE_ATFILE |
| /* Similar to stat, get the attributes for FILE and put them in BUF. |
| Relative path names are interpreted relative to FD unless FD is |
| AT_FDCWD. */ |
| # ifndef __USE_FILE_OFFSET64 |
| extern int fstatat (int __fd, __const char *__restrict __file, |
| struct stat *__restrict __buf, int __flag) |
| __THROW __nonnull ((2, 3)); |
| # else |
| # ifdef __REDIRECT_NTH |
| extern int __REDIRECT_NTH (fstatat, (int __fd, __const char *__restrict __file, |
| struct stat *__restrict __buf, |
| int __flag), |
| fstatat64) __nonnull ((2, 3)); |
| # else |
| # define fstatat fstatat64 |
| # endif |
| # endif |
| |
| # ifdef __USE_LARGEFILE64 |
| extern int fstatat64 (int __fd, __const char *__restrict __file, |
| struct stat64 *__restrict __buf, int __flag) |
| __THROW __nonnull ((2, 3)); |
| # endif |
| #endif |
| |
| #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K |
| # ifndef __USE_FILE_OFFSET64 |
| /* Get file attributes about FILE and put them in BUF. |
| If FILE is a symbolic link, do not follow it. */ |
| extern int lstat (__const char *__restrict __file, |
| struct stat *__restrict __buf) __THROW __nonnull ((1, 2)); |
| # else |
| # ifdef __REDIRECT_NTH |
| extern int __REDIRECT_NTH (lstat, |
| (__const char *__restrict __file, |
| struct stat *__restrict __buf), lstat64) |
| __nonnull ((1, 2)); |
| # else |
| # define lstat lstat64 |
| # endif |
| # endif |
| # ifdef __USE_LARGEFILE64 |
| extern int lstat64 (__const char *__restrict __file, |
| struct stat64 *__restrict __buf) |
| __THROW __nonnull ((1, 2)); |
| # endif |
| #endif |
| |
| /* Set file access permissions for FILE to MODE. |
| If FILE is a symbolic link, this affects its target instead. */ |
| extern int chmod (__const char *__file, __mode_t __mode) |
| __THROW __nonnull ((1)); |
| |
| #ifdef __USE_BSD |
| /* Set file access permissions for FILE to MODE. |
| If FILE is a symbolic link, this affects the link itself |
| rather than its target. */ |
| extern int lchmod (__const char *__file, __mode_t __mode) |
| __THROW __nonnull ((1)); |
| #endif |
| |
| /* Set file access permissions of the file FD is open on to MODE. */ |
| #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 |
| extern int fchmod (int __fd, __mode_t __mode) __THROW; |
| #endif |
| |
| #ifdef __USE_ATFILE |
| /* Set file access permissions of FILE relative to |
| the directory FD is open on. */ |
| extern int fchmodat (int __fd, __const char *__file, __mode_t __mode, |
| int __flag) |
| __THROW __nonnull ((2)) __wur; |
| #endif /* Use ATFILE. */ |
| |
| |
| |
| /* Set the file creation mask of the current process to MASK, |
| and return the old creation mask. */ |
| extern __mode_t umask (__mode_t __mask) __THROW; |
| |
| #ifdef __USE_GNU |
| /* Get the current `umask' value without changing it. |
| This function is only available under the GNU Hurd. */ |
| extern __mode_t getumask (void) __THROW; |
| #endif |
| |
| /* Create a new directory named PATH, with permission bits MODE. */ |
| extern int mkdir (__const char *__path, __mode_t __mode) |
| __THROW __nonnull ((1)); |
| |
| #ifdef __USE_ATFILE |
| /* Like mkdir, create a new directory with permission bits MODE. But |
| interpret relative PATH names relative to the directory associated |
| with FD. */ |
| extern int mkdirat (int __fd, __const char *__path, __mode_t __mode) |
| __THROW __nonnull ((2)); |
| #endif |
| |
| /* Create a device file named PATH, with permission and special bits MODE |
| and device number DEV (which can be constructed from major and minor |
| device numbers with the `makedev' macro above). */ |
| #if defined __USE_MISC || defined __USE_BSD || defined __USE_XOPEN_EXTENDED |
| extern int mknod (__const char *__path, __mode_t __mode, __dev_t __dev) |
| __THROW __nonnull ((1)); |
| |
| # ifdef __USE_ATFILE |
| /* Like mknod, create a new device file with permission bits MODE and |
| device number DEV. But interpret relative PATH names relative to |
| the directory associated with FD. */ |
| extern int mknodat (int __fd, __const char *__path, __mode_t __mode, |
| __dev_t __dev) __THROW __nonnull ((2)); |
| # endif |
| #endif |
| |
| |
| /* Create a new FIFO named PATH, with permission bits MODE. */ |
| extern int mkfifo (__const char *__path, __mode_t __mode) |
| __THROW __nonnull ((1)); |
| |
| #ifdef __USE_ATFILE |
| /* Like mkfifo, create a new FIFO with permission bits MODE. But |
| interpret relative PATH names relative to the directory associated |
| with FD. */ |
| extern int mkfifoat (int __fd, __const char *__path, __mode_t __mode) |
| __THROW __nonnull ((2)); |
| #endif |
| |
| #ifdef __USE_ATFILE |
| /* Set file access and modification times relative to directory file |
| descriptor. */ |
| extern int utimensat (int __fd, __const char *__path, |
| __const struct timespec __times[2], |
| int __flags) |
| __THROW __nonnull ((2)); |
| #endif |
| |
| #ifdef __USE_XOPEN2K8 |
| /* Set file access and modification times of the file associated with FD. */ |
| extern int futimens (int __fd, __const struct timespec __times[2]) __THROW; |
| #endif |
| |
| /* To allow the `struct stat' structure and the file type `mode_t' |
| bits to vary without changing shared library major version number, |
| the `stat' family of functions and `mknod' are in fact inline |
| wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod', |
| which all take a leading version-number argument designating the |
| data structure and bits used. <bits/stat.h> defines _STAT_VER with |
| the version number corresponding to `struct stat' as defined in |
| that file; and _MKNOD_VER with the version number corresponding to |
| the S_IF* macros defined therein. It is arranged that when not |
| inlined these function are always statically linked; that way a |
| dynamically-linked executable always encodes the version number |
| corresponding to the data structures it uses, so the `x' functions |
| in the shared library can adapt without needing to recompile all |
| callers. */ |
| |
| #ifndef _STAT_VER |
| # define _STAT_VER 0 |
| #endif |
| #ifndef _MKNOD_VER |
| # define _MKNOD_VER 0 |
| #endif |
| |
| /* Wrappers for stat and mknod system calls. */ |
| #ifndef __USE_FILE_OFFSET64 |
| extern int __fxstat (int __ver, int __fildes, struct stat *__stat_buf) |
| __THROW __nonnull ((3)); |
| extern int __xstat (int __ver, __const char *__filename, |
| struct stat *__stat_buf) __THROW __nonnull ((2, 3)); |
| extern int __lxstat (int __ver, __const char *__filename, |
| struct stat *__stat_buf) __THROW __nonnull ((2, 3)); |
| extern int __fxstatat (int __ver, int __fildes, __const char *__filename, |
| struct stat *__stat_buf, int __flag) |
| __THROW __nonnull ((3, 4)); |
| #else |
| # ifdef __REDIRECT_NTH |
| extern int __REDIRECT_NTH (__fxstat, (int __ver, int __fildes, |
| struct stat *__stat_buf), __fxstat64) |
| __nonnull ((3)); |
| extern int __REDIRECT_NTH (__xstat, (int __ver, __const char *__filename, |
| struct stat *__stat_buf), __xstat64) |
| __nonnull ((2, 3)); |
| extern int __REDIRECT_NTH (__lxstat, (int __ver, __const char *__filename, |
| struct stat *__stat_buf), __lxstat64) |
| __nonnull ((2, 3)); |
| extern int __REDIRECT_NTH (__fxstatat, (int __ver, int __fildes, |
| __const char *__filename, |
| struct stat *__stat_buf, int __flag), |
| __fxstatat64) __nonnull ((3, 4)); |
| |
| # else |
| # define __fxstat __fxstat64 |
| # define __xstat __xstat64 |
| # define __lxstat __lxstat64 |
| # endif |
| #endif |
| |
| #ifdef __USE_LARGEFILE64 |
| extern int __fxstat64 (int __ver, int __fildes, struct stat64 *__stat_buf) |
| __THROW __nonnull ((3)); |
| extern int __xstat64 (int __ver, __const char *__filename, |
| struct stat64 *__stat_buf) __THROW __nonnull ((2, 3)); |
| extern int __lxstat64 (int __ver, __const char *__filename, |
| struct stat64 *__stat_buf) __THROW __nonnull ((2, 3)); |
| extern int __fxstatat64 (int __ver, int __fildes, __const char *__filename, |
| struct stat64 *__stat_buf, int __flag) |
| __THROW __nonnull ((3, 4)); |
| #endif |
| extern int __xmknod (int __ver, __const char *__path, __mode_t __mode, |
| __dev_t *__dev) __THROW __nonnull ((2, 4)); |
| |
| extern int __xmknodat (int __ver, int __fd, __const char *__path, |
| __mode_t __mode, __dev_t *__dev) |
| __THROW __nonnull ((3, 5)); |
| |
| #if defined __GNUC__ && __GNUC__ >= 2 && defined __USE_EXTERN_INLINES |
| /* Inlined versions of the real stat and mknod functions. */ |
| |
| __extern_inline int |
| __NTH (stat (__const char *__path, struct stat *__statbuf)) |
| { |
| return __xstat (_STAT_VER, __path, __statbuf); |
| } |
| |
| # if defined __USE_BSD || defined __USE_XOPEN_EXTENDED |
| __extern_inline int |
| __NTH (lstat (__const char *__path, struct stat *__statbuf)) |
| { |
| return __lxstat (_STAT_VER, __path, __statbuf); |
| } |
| # endif |
| |
| __extern_inline int |
| __NTH (fstat (int __fd, struct stat *__statbuf)) |
| { |
| return __fxstat (_STAT_VER, __fd, __statbuf); |
| } |
| |
| # ifdef __USE_ATFILE |
| __extern_inline int |
| __NTH (fstatat (int __fd, __const char *__filename, struct stat *__statbuf, |
| int __flag)) |
| { |
| return __fxstatat (_STAT_VER, __fd, __filename, __statbuf, __flag); |
| } |
| # endif |
| |
| # if defined __USE_MISC || defined __USE_BSD |
| __extern_inline int |
| __NTH (mknod (__const char *__path, __mode_t __mode, __dev_t __dev)) |
| { |
| return __xmknod (_MKNOD_VER, __path, __mode, &__dev); |
| } |
| # endif |
| |
| # ifdef __USE_ATFILE |
| __extern_inline int |
| __NTH (mknodat (int __fd, __const char *__path, __mode_t __mode, |
| __dev_t __dev)) |
| { |
| return __xmknodat (_MKNOD_VER, __fd, __path, __mode, &__dev); |
| } |
| # endif |
| |
| # if defined __USE_LARGEFILE64 \ |
| && (! defined __USE_FILE_OFFSET64 \ |
| || (defined __REDIRECT_NTH && defined __OPTIMIZE__)) |
| __extern_inline int |
| __NTH (stat64 (__const char *__path, struct stat64 *__statbuf)) |
| { |
| return __xstat64 (_STAT_VER, __path, __statbuf); |
| } |
| |
| # if defined __USE_BSD || defined __USE_XOPEN_EXTENDED |
| __extern_inline int |
| __NTH (lstat64 (__const char *__path, struct stat64 *__statbuf)) |
| { |
| return __lxstat64 (_STAT_VER, __path, __statbuf); |
| } |
| # endif |
| |
| __extern_inline int |
| __NTH (fstat64 (int __fd, struct stat64 *__statbuf)) |
| { |
| return __fxstat64 (_STAT_VER, __fd, __statbuf); |
| } |
| |
| # ifdef __USE_ATFILE |
| __extern_inline int |
| __NTH (fstatat64 (int __fd, __const char *__filename, struct stat64 *__statbuf, |
| int __flag)) |
| { |
| return __fxstatat64 (_STAT_VER, __fd, __filename, __statbuf, __flag); |
| } |
| # endif |
| |
| # endif |
| |
| #endif |
| |
| __END_DECLS |
| |
| |
| #endif /* sys/stat.h */ |