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-rw-r--r--include/sys/stat.h432
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 */