Sys/stat.h

/* Copyright (C) 1991,1992,1995-2004,2005,2006 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	  */ /* The Single Unix specification says that some more types are available here. */ typedef __dev_t dev_t; typedef __gid_t gid_t; typedef __ino_t ino_t; typedef __ino64_t ino_t; typedef __mode_t mode_t; typedef __nlink_t nlink_t; typedef __off_t off_t; typedef __off64_t off_t; typedef __uid_t uid_t; typedef __blkcnt_t blkcnt_t; typedef __blkcnt64_t blkcnt_t; typedef __blksize_t blksize_t; __BEGIN_DECLS && defined __S_IFSOCK /* Test macros for file types. */    && defined __S_IFSOCK /* 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. */ /* Protection bits. */ /* Save swapped text after use (sticky bit). This is pretty well obsolete. */ /* Read, write, and execute by owner. */ /* Read, write, and execute by group. */ /* Read, write, and execute by others. */ /* Macros for common mode bit masks. */ /* 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)); 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)); 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)); /* 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. */ extern int fstatat (int __fd, __const char *__restrict __file, 		   struct stat *__restrict __buf, int __flag) __THROW __nonnull ((2, 3)); extern int __REDIRECT_NTH (fstatat, (int __fd, __const char *__restrict __file, struct stat *__restrict __buf, int __flag), 			  fstatat64) __nonnull ((2, 3)); extern int fstatat64 (int __fd, __const char *__restrict __file, 		     struct stat64 *__restrict __buf, int __flag) __THROW __nonnull ((2, 3)); /* 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)); extern int __REDIRECT_NTH (lstat, 			  (__const char *__restrict __file, struct stat *__restrict __buf), lstat64) __nonnull ((1, 2)); extern int lstat64 (__const char *__restrict __file, 		   struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2)); /* 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)); /* 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)); /* Set file access permissions of the file FD is open on to MODE. */ extern int fchmod (int __fd, __mode_t __mode) __THROW; /* 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; /* 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; /* Get the current `umask' value without changing it. This function is only available under the GNU Hurd. */ extern __mode_t getumask (void) __THROW; /* Create a new directory named PATH, with permission bits MODE. */ extern int mkdir (__const char *__path, __mode_t __mode) __THROW __nonnull ((1)); /* 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)); /* 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). */ extern int mknod (__const char *__path, __mode_t __mode, __dev_t __dev) __THROW __nonnull ((1)); /* 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)); /* Create a new FIFO named PATH, with permission bits MODE. */ extern int mkfifo (__const char *__path, __mode_t __mode) __THROW __nonnull ((1)); /* 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)); � /* 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.  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. */ /* Wrappers for stat and mknod system calls. */ 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)); 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)); 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)); 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)); /* 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); } extern __inline__ int __NTH (lstat (__const char *__path, struct stat *__statbuf)) {  return __lxstat (_STAT_VER, __path, __statbuf); } extern __inline__ int __NTH (fstat (int __fd, struct stat *__statbuf)) {  return __fxstat (_STAT_VER, __fd, __statbuf); } extern __inline__ int __NTH (fstatat (int __fd, __const char *__filename, struct stat *__statbuf, int __flag)) {  return __fxstatat (_STAT_VER, __fd, __filename, __statbuf, __flag); } extern __inline__ int __NTH (mknod (__const char *__path, __mode_t __mode, __dev_t __dev)) {  return __xmknod (_MKNOD_VER, __path, __mode, &__dev); } extern __inline__ int __NTH (mknodat (int __fd, __const char *__path, __mode_t __mode, __dev_t __dev)) {  return __xmknodat (_MKNOD_VER, __fd, __path, __mode, &__dev); }  && (! 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); } extern __inline__ int __NTH (lstat64 (__const char *__path, struct stat64 *__statbuf)) {  return __lxstat64 (_STAT_VER, __path, __statbuf); } extern __inline__ int __NTH (fstat64 (int __fd, struct stat64 *__statbuf)) {  return __fxstat64 (_STAT_VER, __fd, __statbuf); } extern __inline__ int __NTH (fstatat64 (int __fd, __const char *__filename, struct stat64 *__statbuf, int __flag)) {  return __fxstatat64 (_STAT_VER, __fd, __filename, __statbuf, __flag); } __END_DECLS
 * 1) ifndef	_SYS_STAT_H
 * 2) define	_SYS_STAT_H	1
 * 1) include 
 * 1) include 		/* For __mode_t and __dev_t. */
 * 1) if defined __USE_XOPEN || defined __USE_MISC
 * 2) if defined __USE_XOPEN || defined __USE_XOPEN2K
 * 3)  define __need_time_t
 * 4) endif
 * 5) ifdef __USE_MISC
 * 6)  define __need_timespec
 * 7) endif
 * 8) include 		/* For time_t resp. timespec.  */
 * 9) endif
 * 1) if defined __USE_XOPEN || defined __USE_XOPEN2K
 * 1) ifndef __dev_t_defined
 * 1)  define __dev_t_defined
 * 2) endif
 * 1) ifndef __gid_t_defined
 * 1)  define __gid_t_defined
 * 2) endif
 * 1) ifndef __ino_t_defined
 * 2)  ifndef __USE_FILE_OFFSET64
 * 1)  else
 * 1)  endif
 * 2)  define __ino_t_defined
 * 3) endif
 * 1) ifndef __mode_t_defined
 * 1)  define __mode_t_defined
 * 2) endif
 * 1) ifndef __nlink_t_defined
 * 1)  define __nlink_t_defined
 * 2) endif
 * 1) ifndef __off_t_defined
 * 2)  ifndef __USE_FILE_OFFSET64
 * 1)  else
 * 1)  endif
 * 2)  define __off_t_defined
 * 3) endif
 * 1) ifndef __uid_t_defined
 * 1)  define __uid_t_defined
 * 2) endif
 * 3) endif	/* X/Open */
 * 1) ifdef __USE_UNIX98
 * 2) ifndef __blkcnt_t_defined
 * 3)  ifndef __USE_FILE_OFFSET64
 * 1)  else
 * 1)  endif
 * 2)  define __blkcnt_t_defined
 * 3) endif
 * 1) ifndef __blksize_t_defined
 * 1)  define __blksize_t_defined
 * 2) endif
 * 3) endif	/* Unix98 */
 * 1) include 
 * 1) if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN
 * 2) define S_IFMT		__S_IFMT
 * 3) define S_IFDIR	__S_IFDIR
 * 4) define S_IFCHR	__S_IFCHR
 * 5) define S_IFBLK	__S_IFBLK
 * 6) define S_IFREG	__S_IFREG
 * 7) ifdef __S_IFIFO
 * 8)  define S_IFIFO	__S_IFIFO
 * 9) endif
 * 10) ifdef __S_IFLNK
 * 11)  define S_IFLNK	__S_IFLNK
 * 12) endif
 * 13) if (defined __USE_BSD || defined __USE_MISC || defined __USE_UNIX98) \
 * 1)  define S_IFSOCK	__S_IFSOCK
 * 2) endif
 * 3) endif
 * 1) define	__S_ISTYPE(mode, mask)	(((mode) & __S_IFMT) == (mask))
 * 1) define	S_ISDIR(mode)	 __S_ISTYPE((mode), __S_IFDIR)
 * 2) define	S_ISCHR(mode)	 __S_ISTYPE((mode), __S_IFCHR)
 * 3) define	S_ISBLK(mode)	 __S_ISTYPE((mode), __S_IFBLK)
 * 4) define	S_ISREG(mode)	 __S_ISTYPE((mode), __S_IFREG)
 * 5) ifdef __S_IFIFO
 * 6) define S_ISFIFO(mode)	 __S_ISTYPE((mode), __S_IFIFO)
 * 7) endif
 * 8) ifdef __S_IFLNK
 * 9) define S_ISLNK(mode)	 __S_ISTYPE((mode), __S_IFLNK)
 * 10) endif
 * 1) if defined __USE_BSD && !defined __S_IFLNK
 * 2) define S_ISLNK(mode)  0
 * 3) endif
 * 1) if (defined __USE_BSD || defined __USE_UNIX98) \
 * 1) define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
 * 2) endif
 * 1) ifdef	__USE_POSIX199309
 * 2) define S_TYPEISMQ(buf) __S_TYPEISMQ(buf)
 * 3) define S_TYPEISSEM(buf) __S_TYPEISSEM(buf)
 * 4) define S_TYPEISSHM(buf) __S_TYPEISSHM(buf)
 * 5) endif
 * 1) define	S_ISUID __S_ISUID	/* Set user ID on execution. */
 * 2) define	S_ISGID	__S_ISGID	/* Set group ID on execution. */
 * 1) if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN
 * 1) define S_ISVTX	__S_ISVTX
 * 2) endif
 * 1) define	S_IRUSR	__S_IREAD	/* Read by owner. */
 * 2) define	S_IWUSR	__S_IWRITE	/* Write by owner. */
 * 3) define	S_IXUSR	__S_IEXEC	/* Execute by owner. */
 * 1) define	S_IRWXU	(__S_IREAD|__S_IWRITE|__S_IEXEC)
 * 1) if defined __USE_MISC && defined __USE_BSD
 * 2) define S_IREAD	S_IRUSR
 * 3) define S_IWRITE	S_IWUSR
 * 4) define S_IEXEC	S_IXUSR
 * 5) endif
 * 1) define	S_IRGRP	(S_IRUSR >> 3)	/* Read by group. */
 * 2) define	S_IWGRP	(S_IWUSR >> 3)	/* Write by group. */
 * 3) define	S_IXGRP	(S_IXUSR >> 3)	/* Execute by group. */
 * 1) define	S_IRWXG	(S_IRWXU >> 3)
 * 1) define	S_IROTH	(S_IRGRP >> 3)	/* Read by others. */
 * 2) define	S_IWOTH	(S_IWGRP >> 3)	/* Write by others. */
 * 3) define	S_IXOTH	(S_IXGRP >> 3)	/* Execute by others. */
 * 1) define	S_IRWXO	(S_IRWXG >> 3)
 * 1) ifdef	__USE_BSD
 * 1) define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
 * 2) define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */
 * 3) define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/
 * 1) define S_BLKSIZE	512	/* Block size for `st_blocks'.  */
 * 2) endif
 * 1) ifndef __USE_FILE_OFFSET64
 * 1) else
 * 2) ifdef __REDIRECT_NTH
 * 1) else
 * 2)  define stat stat64
 * 3)  define fstat fstat64
 * 4) endif
 * 5) endif
 * 6) ifdef __USE_LARGEFILE64
 * 1) endif
 * 1) ifdef __USE_ATFILE
 * 1) ifndef __USE_FILE_OFFSET64
 * 1) else
 * 2)  ifdef __REDIRECT_NTH
 * 1)  else
 * 2)   define fstatat fstatat64
 * 3)  endif
 * 4) endif
 * 1) endif
 * 1) if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
 * 2) ifndef __USE_FILE_OFFSET64
 * 1) else
 * 2)  ifdef __REDIRECT_NTH
 * 1)  else
 * 2)   define lstat lstat64
 * 3)  endif
 * 4) endif
 * 5) ifdef __USE_LARGEFILE64
 * 1) endif
 * 2) endif
 * 1) ifdef __USE_BSD
 * 1) endif
 * 1) if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
 * 1) endif
 * 1) ifdef __USE_ATFILE
 * 1) endif /* Use ATFILE. */
 * 1) ifdef	__USE_GNU
 * 1) endif
 * 1) ifdef __USE_ATFILE
 * 1) endif
 * 1) if defined __USE_MISC || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
 * 1) endif
 * 1) ifdef __USE_ATFILE
 * 1) endif
 * 1) ifdef __USE_ATFILE
 * 1) endif
 * 1) ifndef _STAT_VER
 * 2) define _STAT_VER	0
 * 3) endif
 * 4) ifndef _MKNOD_VER
 * 5) define _MKNOD_VER	0
 * 6) endif
 * 1) ifndef __USE_FILE_OFFSET64
 * 1) else
 * 2) ifdef __REDIRECT_NTH
 * 1) else
 * 2)  define __fxstat __fxstat64
 * 3)  define __xstat __xstat64
 * 4)  define __lxstat __lxstat64
 * 5) endif
 * 6) endif
 * 1) ifdef __USE_LARGEFILE64
 * 1) endif
 * 1) if defined __GNUC__ && __GNUC__ >= 2
 * 1) if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
 * 1) endif
 * 1) ifdef __USE_ATFILE
 * 1) endif
 * 1) if defined __USE_MISC || defined __USE_BSD
 * 1) endif
 * 1) ifdef __USE_ATFILE
 * 1) endif
 * 1) if defined __USE_LARGEFILE64 \
 * 1)  if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
 * 1)  endif
 * 1)  ifdef __USE_GNU
 * 1)  endif
 * 1) endif
 * 1) endif
 * 1) endif /* sys/stat.h */