diff options
Diffstat (limited to 'include/sys/stat.h')
| -rw-r--r-- | include/sys/stat.h | 432 |
1 files changed, 304 insertions, 128 deletions
diff --git a/include/sys/stat.h b/include/sys/stat.h index e486d755c..13c50411d 100644 --- a/include/sys/stat.h +++ b/include/sys/stat.h @@ -1,192 +1,368 @@ -#ifndef _SYS_STAT_H -#define _SYS_STAT_H +/* Copyright (C) 1991, 92, 95, 96, 97, 98 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. 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 <sys/types.h> -#undef __NOT_KERNEL -#define __NOT_KERNEL -#include <linux/stat.h> -#undef __NOT_KERNEL -#ifdef __SVR4_I386_ABI_L1__ -#include <sys/time.h> /* For timestruc_t */ -#endif /* __SVR4_I386_ABI_L1__ */ +#include <bits/types.h> /* For __mode_t and __dev_t. */ + +#ifdef __USE_XOPEN +# define __need_time_t +# include <time.h> /* For time_t. */ + +/* The Single Unix specification says that some more types are + available here. */ +# ifndef dev_t +typedef __dev_t dev_t; +# define dev_t dev_t +# endif + +# ifndef gid_t +typedef __gid_t gid_t; +# define gid_t gid_t +# endif + +# ifndef ino_t +# ifndef __USE_FILE_OFFSET64 +typedef __ino_t ino_t; +# else +typedef __ino64_t ino_t; +# endif +# define ino_t ino_t +# endif + +# ifndef mode_t +typedef __mode_t mode_t; +# define mode_t mode_t +# endif + +# ifndef nlink_t +typedef __nlink_t nlink_t; +# define nlink_t nlink_t +# endif + +# ifndef off_t +# ifndef __USE_FILE_OFFSET64 +typedef __off_t off_t; +# else +typedef __off64_t off_t; +# endif +# define off_t off_t +# endif + +# ifndef uid_t +typedef __uid_t uid_t; +# define uid_t uid_t +# endif +#endif /* X/Open */ + +#ifdef __USE_UNIX98 +# ifndef pid_t +typedef __pid_t pid_t; +# define pid_t pid_t +# endif +#endif /* Unix98 */ __BEGIN_DECLS -struct stat { - dev_t st_dev; - -#ifdef __SVR4_I386_ABI_L1__ - long st_pad1[3]; -#else - unsigned short __pad1; +#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 +# if defined __USE_BSD || defined __USE_MISC +# ifdef __S_IFLNK +# define S_IFLNK __S_IFLNK +# endif +# ifdef __S_IFSOCK +# define S_IFSOCK __S_IFSOCK +# endif +# endif #endif - ino_t st_ino; - umode_t st_mode; - nlink_t st_nlink; - uid_t st_uid; - gid_t st_gid; - dev_t st_rdev; +/* Test macros for file types. */ -#ifdef __SVR4_I386_ABI_L1__ - long st_pad2[2]; -#else - unsigned short __pad2; +#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 - off_t st_size; +#ifdef __USE_BSD +# ifdef __S_IFLNK +# define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) +# else +# define S_ISLNK(mode) 0 +# endif +# ifdef __S_IFSOCK +# define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK) +# endif +#endif -#ifdef __SVR4_I386_ABI_L1__ - timestruc_t st_atim; - timestruc_t st_mtim; - timestruc_t st_ctim; - long st_blksize; - long st_blocks; -#define FSTYPSZ 16 +/* Protection bits. */ - char st_fstype[FSTYPSZ]; - long st_pad4[8]; +#define S_ISUID __S_ISUID /* Set user ID on execution. */ +#define S_ISGID __S_ISGID /* Set group ID on execution. */ -#define st_atime st_atim.tv_sec -#define st_mtime st_mtim.tv_sec -#define st_ctime st_ctim.tv_sec +#if defined __USE_BSD || defined __USE_MISC +/* Save swapped text after use (sticky bit). This is pretty well obsolete. */ +# define S_ISVTX __S_ISVTX +#endif -#else /*! __SVR4_I386_ABI_L1__*/ - unsigned long st_blksize; - unsigned long st_blocks; - time_t st_atime; - unsigned long __unused1; - time_t st_mtime; - unsigned long __unused2; - time_t st_ctime; - unsigned long __unused3; - unsigned long __unused4; - unsigned long __unused5; -#endif /*! __SVR4_I386_ABI_L1__*/ -}; +#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 LINUX_MKNOD_VERSION 1 /* SVr4 */ -#define LINUX_STAT_VERSION 1 /* SVr4 */ +#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) -extern int _fxstat __P ((int __ver, int __fildes, - struct stat *__stat_buf)); +#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) -extern int _xstat __P ((int __ver, __const char *__filename, - struct stat *__stat_buf)); -extern int _lxstat __P ((int __ver, __const char *__filename, - struct stat *__stat_buf)); +#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*/ -#ifdef _MIT_POSIX_THREADS -extern int __machdep_sys__fxstat __P ((int __ver, int __fd, - struct stat *__stat_buf)); +# define S_BLKSIZE 512 /* Block size for `st_blocks'. */ #endif -extern int _xmknod __P ((int __ver, __const char *__path, - mode_t __mode, dev_t *__dev)); - -/* Some synonyms used historically in the kernel and elsewhere */ -#define S_IREAD S_IRUSR /* read permission, owner */ -#define S_IWRITE S_IWUSR /* write permission, owner */ -#define S_IEXEC S_IXUSR /* execute/search permission, owner */ -extern int __chmod __P ((__const char *__path, mode_t __mode)); -extern int chmod __P ((__const char *__path, mode_t __mode)); +#ifndef __USE_FILE_OFFSET64 +/* Get file attributes for FILE and put them in BUF. */ +extern int stat __P ((__const char *__file, struct stat *__buf)); -extern int __fchmod __P ((int __fildes, mode_t __mode)); -extern int fchmod __P ((int __fildes, mode_t __mode)); +/* 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 __P ((int __fd, struct stat *__buf)); +#else +# ifdef __REDIRECT +extern int __REDIRECT (stat, __P ((__const char *__file, struct stat *__buf)), + stat64); +extern int __REDIRECT (fstat, __P ((int __fd, struct stat *__buf)), fstat64); +# else +# define stat stat64 +# define fstat fstat64 +# endif +#endif +#ifdef __USE_LARGEFILE64 +extern int stat64 __P ((__const char *__file, struct stat64 *__buf)); +extern int fstat64 __P ((int __fd, struct stat64 *__buf)); +#endif -extern int __mkdir __P ((__const char *__path, mode_t __mode)); -extern int mkdir __P ((__const char *__path, mode_t __mode)); +#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED +# 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 __P ((__const char *__file, struct stat *__buf)); +# else +# ifdef __REDIRECT +extern int __REDIRECT (lstat, __P ((__const char *__file, struct stat *__buf)), + lstat64); +# else +# define lstat lstat64 +# endif +# endif +# ifdef __USE_LARGEFILE64 +extern int lstat64 __P ((__const char *__file, struct stat64 *__buf)); +# endif +#endif -extern int mkfifo __P ((__const char *__path, mode_t __mode)); +/* Set file access permissions for FILE to MODE. + This takes an `int' MODE argument because that + is what `mode_t's get widened to. */ +extern int chmod __P ((__const char *__file, __mode_t __mode)); -#if 1 +/* Set file access permissions of the file FD is open on to MODE. */ +#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED +extern int fchmod __P ((int __fd, __mode_t __mode)); +#endif -extern int __fstat __P ((int __fildes, struct stat *__stat_buf)); -extern int fstat __P ((int __fildes, struct stat *__stat_buf)); -extern int __stat __P ((__const char *__filename, - struct stat *__stat_buf)); -extern int stat __P ((__const char *__filename, - struct stat *__stat_buf)); +/* Set the file creation mask of the current process to MASK, + and return the old creation mask. */ +extern __mode_t umask __P ((__mode_t __mask)); -extern int __lstat __P ((__const char *__filename, - struct stat *__stat_buf)); -extern int lstat __P ((__const char *__filename, - struct stat *__stat_buf)); +#ifdef __USE_GNU +/* Get the current `umask' value without changing it. + This function is only available under the GNU Hurd. */ +extern __mode_t getumask __P ((void)); +#endif -extern int __mknod __P ((__const char *__path, mode_t __mode, - dev_t __dev)); -extern int mknod __P ((__const char *__path, mode_t __mode, - dev_t __dev)); -#endif /* #if 0 */ +/* Create a new directory named PATH, with permission bits MODE. */ +extern int mkdir __P ((__const char *__path, __mode_t __mode)); -extern mode_t __umask __P ((mode_t __mask)); -extern mode_t umask __P ((mode_t __mask)); +/* 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 __P ((__const char *__path, + __mode_t __mode, __dev_t __dev)); +#endif -__END_DECLS -#if 0 +/* Create a new FIFO named PATH, with permission bits MODE. */ +extern int mkfifo __P ((__const char *__path, __mode_t __mode)); + +/* 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 -static __inline__ int __stat(__const char * __path, struct stat * __statbuf) -{ - return _xstat(LINUX_STAT_VERSION, __path, __statbuf); -} +/* Wrappers for stat and mknod system calls. */ +#ifndef __USE_FILE_OFFSET64 +extern int __fxstat __P ((int __ver, int __fildes, + struct stat *__stat_buf)); +extern int __xstat __P ((int __ver, __const char *__filename, + struct stat *__stat_buf)); +extern int __lxstat __P ((int __ver, __const char *__filename, + struct stat *__stat_buf)); +#else +# ifdef __REDIRECT +extern int __REDIRECT (__fxstat, __P ((int __ver, int __fildes, + struct stat *__stat_buf)), __fxstat64); +extern int __REDIRECT (__xstat, __P ((int __ver, __const char *__filename, + struct stat *__stat_buf)), __xstat64); +extern int __REDIRECT (__lxstat, __P ((int __ver, __const char *__filename, + struct stat *__stat_buf)), __lxstat64); + +# else +# define __fxstat __fxstat64 +# define __xstat __xstat64 +# define __lxstat __lxstat64 +# endif +#endif -static __inline__ int stat(__const char * __path, struct stat * __statbuf) -{ - return _xstat(LINUX_STAT_VERSION, __path, __statbuf); -} +#ifdef __USE_LARGEFILE64 +extern int __fxstat64 __P ((int __ver, int __fildes, + struct stat64 *__stat_buf)); +extern int __xstat64 __P ((int __ver, __const char *__filename, + struct stat64 *__stat_buf)); +extern int __lxstat64 __P ((int __ver, __const char *__filename, + struct stat64 *__stat_buf)); +#endif +extern int __xmknod __P ((int __ver, __const char *__path, + __mode_t __mode, __dev_t *__dev)); -static __inline__ int __lstat(__const char * __path, struct stat * __statbuf) -{ - return _lxstat(LINUX_STAT_VERSION, __path, __statbuf); -} +#if defined __GNUC__ && __GNUC__ >= 2 +/* Inlined versions of the real stat and mknod functions. */ -static __inline__ int lstat(__const char * __path, struct stat * __statbuf) +extern __inline__ int stat (__const char *__path, + struct stat *__statbuf) { - return _lxstat(LINUX_STAT_VERSION, __path, __statbuf); + return __xstat (_STAT_VER, __path, __statbuf); } -static __inline__ int __fstat(int __fd, struct stat * __statbuf) +# if defined __USE_BSD || defined __USE_XOPEN_EXTENDED +extern __inline__ int lstat (__const char *__path, + struct stat *__statbuf) { - return _fxstat(LINUX_STAT_VERSION, __fd, __statbuf); + return __lxstat (_STAT_VER, __path, __statbuf); } +# endif -static __inline__ int fstat(int __fd, struct stat * __statbuf) +extern __inline__ int fstat (int __fd, struct stat *__statbuf) { - return _fxstat(LINUX_STAT_VERSION, __fd, __statbuf); + return __fxstat (_STAT_VER, __fd, __statbuf); } -static __inline__ int __mknod(__const char * __path, mode_t __mode, dev_t __dev) +# if defined __USE_MISC || defined __USE_BSD +extern __inline__ int mknod (__const char *__path, __mode_t __mode, + __dev_t __dev) { - return _xmknod(LINUX_MKNOD_VERSION, __path, __mode, &__dev); + return __xmknod (_MKNOD_VER, __path, __mode, &__dev); } +# endif -static __inline__ int mknod(__const char * __path, mode_t __mode, dev_t __dev) +# ifdef __USE_LARGEFILE64 +extern __inline__ int stat64 (__const char *__path, + struct stat64 *__statbuf) { - return _xmknod(LINUX_MKNOD_VERSION, __path, __mode, &__dev); + return __xstat64 (_STAT_VER, __path, __statbuf); } -#ifdef _MIT_POSIX_THREADS - -static __inline__ int __machdep_sys_fstat(int __fd, struct stat * __statbuf) +# if defined __USE_BSD || defined __USE_XOPEN_EXTENDED +extern __inline__ int lstat64 (__const char *__path, + struct stat64 *__statbuf) { - return __machdep_sys__fxstat(LINUX_STAT_VERSION, __fd, __statbuf); + return __lxstat64 (_STAT_VER, __path, __statbuf); } +# endif -static __inline__ int machdep_sys_fstat(int __fd, struct stat * __statbuf) +extern __inline__ int fstat64 (int __fd, struct stat64 *__statbuf) { - return __machdep_sys__fxstat(LINUX_STAT_VERSION, __fd, __statbuf); + return __fxstat64 (_STAT_VER, __fd, __statbuf); } +# endif #endif -#endif +__END_DECLS -#endif + +#endif /* sys/stat.h */ |