Viewing file:  stat.h (13.45 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* Copyright (C) 1991-2024 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, see
<https://www.gnu.org/licenses/>. */
/*
* 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. */
#ifdef __USE_XOPEN2K8
# include <bits/types/struct_timespec.h>
#endif
#if defined __USE_XOPEN || defined __USE_XOPEN2K
/* The Single Unix specification says that some more types are
available here. */
# include <bits/types/time_t.h>
# ifndef __dev_t_defined
typedef __dev_t dev_t;
# define __dev_t_defined
# endif
# ifndef __gid_t_defined
typedef __gid_t gid_t;
# define __gid_t_defined
# endif
# ifndef __ino_t_defined
# ifndef __USE_FILE_OFFSET64
typedef __ino_t ino_t;
# else
typedef __ino64_t ino_t;
# endif
# define __ino_t_defined
# endif
# ifndef __mode_t_defined
typedef __mode_t mode_t;
# define __mode_t_defined
# endif
# ifndef __nlink_t_defined
typedef __nlink_t nlink_t;
# define __nlink_t_defined
# endif
# ifndef __off_t_defined
# ifndef __USE_FILE_OFFSET64
typedef __off_t off_t;
# else
typedef __off64_t off_t;
# endif
# define __off_t_defined
# endif
# ifndef __uid_t_defined
typedef __uid_t uid_t;
# define __uid_t_defined
# endif
#endif /* X/Open */
#ifdef __USE_UNIX98
# ifndef __blkcnt_t_defined
# ifndef __USE_FILE_OFFSET64
typedef __blkcnt_t blkcnt_t;
# else
typedef __blkcnt64_t blkcnt_t;
# endif
# define __blkcnt_t_defined
# endif
# ifndef __blksize_t_defined
typedef __blksize_t blksize_t;
# define __blksize_t_defined
# endif
#endif /* Unix98 */
__BEGIN_DECLS
#include <bits/stat.h>
#if 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
# ifdef __S_IFLNK
# define S_IFLNK __S_IFLNK
# endif
# if (defined __USE_MISC || defined __USE_XOPEN_EXTENDED) \
&& defined __S_IFSOCK
# define S_IFSOCK __S_IFSOCK
# 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 __S_IFLNK
# define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK)
#endif
#if defined __USE_MISC && !defined __S_IFLNK
# define S_ISLNK(mode) 0
#endif
#if (defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K) \
&& defined __S_IFSOCK
# define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
#elif defined __USE_XOPEN2K
# define S_ISSOCK(mode) 0
#endif
/* 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. */
#ifdef __USE_POSIX199309
# define S_TYPEISMQ(buf) __S_TYPEISMQ(buf)
# define S_TYPEISSEM(buf) __S_TYPEISSEM(buf)
# define S_TYPEISSHM(buf) __S_TYPEISSHM(buf)
#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_MISC || defined __USE_XOPEN
/* 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)
#ifdef __USE_MISC
# 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_MISC
/* 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 (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));
#else
# ifdef __USE_TIME_BITS64
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (stat, (const char *__restrict __file,
struct stat *__restrict __buf),
__stat64_time64)
__nonnull ((1, 2));
extern int __REDIRECT_NTH (fstat, (int __fd, struct stat *__buf),
__fstat64_time64)
__nonnull ((2));
# else
# define stat __stat64_time64
# define fstat __fstat64_time64
# endif
# else
# ifdef __REDIRECT_NTH
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));
# else
# define stat stat64
# define fstat fstat64
# endif
# endif
#endif
#ifdef __USE_LARGEFILE64
# ifndef __USE_TIME_BITS64
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));
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (stat64, (const char *__restrict __file,
struct stat64 *__restrict __buf),
__stat64_time64)
__nonnull ((1, 2));
extern int __REDIRECT_NTH (fstat64, (int __fd, struct stat64 *__buf),
__fstat64_time64)
__nonnull ((2));
# else
# define stat64 __stat64_time64
# define fstat64 __fstat64_time64
# endif
# endif
#endif
#ifdef __USE_ATFILE
/* 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. */
# ifndef __USE_FILE_OFFSET64
extern int fstatat (int __fd, const char *__restrict __file,
struct stat *__restrict __buf, int __flag)
__THROW __nonnull ((2, 3));
# else
# ifdef __USE_TIME_BITS64
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
struct stat *__restrict __buf,
int __flag),
__fstatat64_time64) __nonnull ((2, 3));
# else
# define fstatat __fstatat64_time64
# endif
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
struct stat *__restrict __buf,
int __flag),
fstatat64) __nonnull ((2, 3));
# else
# define fstatat fstatat64
# endif
# endif
# endif
# ifdef __USE_LARGEFILE64
# ifndef __USE_TIME_BITS64
extern int fstatat64 (int __fd, const char *__restrict __file,
struct stat64 *__restrict __buf, int __flag)
__THROW __nonnull ((2, 3));
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (fstatat64, (int __fd,
const char *__restrict __file,
struct stat64 *__restrict __buf,
int __flag),
__fstatat64_time64)
__nonnull ((2, 3));
# else
# define fstatat64 __fstatat64_time64
# endif
# endif
# endif
#endif
#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
# 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 (const char *__restrict __file,
struct stat *__restrict __buf) __THROW __nonnull ((1, 2));
# else
# ifdef __USE_TIME_BITS64
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (lstat,
(const char *__restrict __file,
struct stat *__restrict __buf), __lstat64_time64)
__nonnull ((1, 2));
# else
# define lstat __lstat64_time64
# endif
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (lstat,
(const char *__restrict __file,
struct stat *__restrict __buf), lstat64)
__nonnull ((1, 2));
# else
# define lstat lstat64
# endif
# endif
# endif
# ifdef __USE_LARGEFILE64
# ifndef __USE_TIME_BITS64
extern int lstat64 (const char *__restrict __file,
struct stat64 *__restrict __buf)
__THROW __nonnull ((1, 2));
# else
extern int __REDIRECT_NTH (lstat64, (const char *__restrict __file,
struct stat64 *__restrict __buf),
__lstat64_time64)
__nonnull ((1, 2));
# endif
# endif
#endif
/* 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));
#ifdef __USE_MISC
/* 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));
#endif
/* Set file access permissions of the file FD is open on to MODE. */
#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
extern int fchmod (int __fd, __mode_t __mode) __THROW;
#endif
#ifdef __USE_ATFILE
/* 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;
#endif /* Use ATFILE. */
/* 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;
#ifdef __USE_GNU
/* Get the current `umask' value without changing it.
This function is only available under the GNU Hurd. */
extern __mode_t getumask (void) __THROW;
#endif
/* Create a new directory named PATH, with permission bits MODE. */
extern int mkdir (const char *__path, __mode_t __mode)
__THROW __nonnull ((1));
#ifdef __USE_ATFILE
/* 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));
#endif
/* 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_XOPEN_EXTENDED
extern int mknod (const char *__path, __mode_t __mode, __dev_t __dev)
__THROW __nonnull ((1));
# ifdef __USE_ATFILE
/* 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));
# endif
#endif
/* Create a new FIFO named PATH, with permission bits MODE. */
extern int mkfifo (const char *__path, __mode_t __mode)
__THROW __nonnull ((1));
#ifdef __USE_ATFILE
/* 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));
#endif
#ifdef __USE_ATFILE
# ifndef __USE_TIME_BITS64
/* Set file access and modification times relative to directory file
descriptor. */
extern int utimensat (int __fd, const char *__path,
const struct timespec __times[2],
int __flags)
__THROW __nonnull ((2));
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (utimensat, (int fd, const char *__path,
const struct timespec __times[2],
int flags),
__utimensat64) __nonnull ((2));
# else
# define utimensat __utimensat64
# endif
# endif
#endif
#ifdef __USE_XOPEN2K8
# ifndef __USE_TIME_BITS64
/* Set file access and modification times of the file associated with FD. */
extern int futimens (int __fd, const struct timespec __times[2]) __THROW;
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (futimens, (int fd, const struct timespec __times[2]),
__futimens64);
# else
# define futimens __futimens64
# endif
# endif
#endif
#ifdef __USE_GNU
# include <bits/statx.h>
#endif
__END_DECLS
#endif /* sys/stat.h */
|