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/* Copyright (C) 1991, 1992, 1995, 1996 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/*
* POSIX Standard: 5.6 File Characteristics <sys/stat.h>
*/
#ifndef _SYS_STAT_H
#define _SYS_STAT_H 1
#include <features.h>
#include <gnu/types.h> /* For __mode_t and __dev_t. */
__BEGIN_DECLS
#include <statbuf.h>
#if defined(__USE_BSD) || defined(__USE_MISC)
#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_IFLNK
#define S_IFLNK __S_IFLNK
#endif
#ifdef __S_IFSOCK
#define S_IFSOCK __S_IFSOCK
#endif
#ifdef __S_IFIFO
#define S_IFIFO __S_IFIFO
#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 __USE_GNU
#ifdef __S_IFLNK
#define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK)
#endif
#ifdef __S_IFSOCK
#define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
#endif
#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)
/* 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_ISTXT|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
/* Get file attributes for FILE and put them in BUF. */
extern int __stat __P ((__const char *__file, struct stat *__buf));
extern int stat __P ((__const char *__file, struct stat *__buf));
/* 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));
extern int fstat __P ((int __fd, struct stat *__buf));
/* 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));
#ifdef __USE_BSD
extern int lstat __P ((__const char *__file, struct stat *__buf));
#endif
/* 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));
extern int chmod __P ((__const char *__file, __mode_t __mode));
/* Set file access permissions of the file FD is open on to MODE. */
extern int __fchmod __P ((int __fd, __mode_t __mode));
#ifdef __USE_BSD
extern int fchmod __P ((int __fd, __mode_t __mode));
#endif
/* 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 __mode_t umask __P ((__mode_t __mask));
#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
/* Create a new directory named PATH, with permission bits MODE. */
extern int __mkdir __P ((__const char *__path, __mode_t __mode));
extern int mkdir __P ((__const char *__path, __mode_t __mode));
/* 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 __P ((__const char *__path,
__mode_t __mode, __dev_t __dev));
#if defined(__USE_MISC) || defined(__USE_BSD)
extern int mknod __P ((__const char *__path,
__mode_t __mode, __dev_t __dev));
#endif
/* 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.
<statbuf.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. */
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));
extern int __xmknod __P ((int __ver, __const char *__path,
__mode_t __mode, __dev_t *__dev));
#if defined (__GNUC__) && __GNUC__ >= 2
/* Inlined versions of the real stat and mknod functions. */
extern __inline__ int __stat (__const char *__path, struct stat *__statbuf)
{ return __xstat (_STAT_VER, __path, __statbuf); }
extern __inline__ int stat (__const char *__path, struct stat *__statbuf)
{ return __xstat (_STAT_VER, __path, __statbuf); }
extern __inline__ int __lstat(__const char *__path, struct stat *__statbuf)
{ return __lxstat (_STAT_VER, __path, __statbuf); }
extern __inline__ int lstat(__const char *__path, struct stat *__statbuf)
{ return __lxstat (_STAT_VER, __path, __statbuf); }
extern __inline__ int __fstat (int __fd, struct stat *__statbuf)
{ return __fxstat (_STAT_VER, __fd, __statbuf); }
extern __inline__ int fstat (int __fd, struct stat *__statbuf)
{ return __fxstat (_STAT_VER, __fd, __statbuf); }
extern __inline__ int __mknod (__const char *__path, __mode_t __mode,
__dev_t __dev)
{ return __xmknod (_MKNOD_VER, __path, __mode, &__dev); }
#if defined(__USE_MISC) || defined(__USE_BSD)
extern __inline__ int mknod (__const char *__path, __mode_t __mode,
__dev_t __dev)
{ return __xmknod (_MKNOD_VER, __path, __mode, &__dev); }
#endif
#endif
__END_DECLS
#endif /* sys/stat.h */
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