Subversion Repositories shark

/* 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 <bits/types.h>         /* For __mode_t and __dev_t.  */
#include <sys/htypes.h>

#ifdef __USE_XOPEN
# define __need_time_t
# include <time.h>              /* For time_t.  */
#endif

/* The Single Unix specification says that some more types are
   available here.  */
__DJ_dev_t
#undef __DJ_dev_t
#define __DJ_dev_t

__DJ_gid_t
#undef __DJ_gid_t
#define __DJ_gid_t

# ifndef ino_t
#  ifndef __USE_FILE_OFFSET64
__DJ_ino_t
#undef __DJ_ino_t
#define __DJ_ino_t
#  else
typedef __ino64_t ino_t;
#  endif
#  define ino_t ino_t
# endif

__DJ_mode_t
#undef __DJ_mode_t
#define __DJ_mode_t

__DJ_nlink_t
#undef __DJ_nlink_t
#define __DJ_nlink_t

# ifndef off_t
#  ifndef __USE_FILE_OFFSET64
__DJ_off_t
#undef __DJ_off_t
#define __DJ_off_t
#  else
typedef __off64_t off_t;
#  endif
#  define off_t off_t
# endif

__DJ_uid_t
#undef __DJ_uid_t
#define __DJ_uid_t

#ifdef __USE_UNIX98
__DJ_pid_t
#undef __DJ_pid_t
#define __DJ_pid_t
#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
# 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

/* 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_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


/* 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_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 __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));
#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

#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

/* 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));

/* 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


/* 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));

#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));

/* 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


/* 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

/* 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

#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));

#if defined __GNUC__ && __GNUC__ >= 2
/* Inlined versions of the real stat and mknod functions.  */

extern __inline__ int stat (__const char *__path,
                            struct stat *__statbuf) __THROW
{
  return __xstat (_STAT_VER, __path, __statbuf);
}

# if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
extern __inline__ int lstat (__const char *__path,
                             struct stat *__statbuf) __THROW
{
  return __lxstat (_STAT_VER, __path, __statbuf);
}
# endif

extern __inline__ int fstat (int __fd, struct stat *__statbuf) __THROW
{
  return __fxstat (_STAT_VER, __fd, __statbuf);
}

# if defined __USE_MISC || defined __USE_BSD
extern __inline__ int mknod (__const char *__path, __mode_t __mode,
                             __dev_t __dev) __THROW
{
  return __xmknod (_MKNOD_VER, __path, __mode, &__dev);
}
# endif

# ifdef __USE_LARGEFILE64
extern __inline__ int stat64 (__const char *__path,
                              struct stat64 *__statbuf) __THROW
{
  return __xstat64 (_STAT_VER, __path, __statbuf);
}

#  if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
extern __inline__ int lstat64 (__const char *__path,
                               struct stat64 *__statbuf) __THROW
{
  return __lxstat64 (_STAT_VER, __path, __statbuf);
}
#  endif

extern __inline__ int fstat64 (int __fd, struct stat64 *__statbuf) __THROW
{
  return __fxstat64 (_STAT_VER, __fd, __statbuf);
}
# endif

#endif

__END_DECLS


#endif /* sys/stat.h  */