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/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/*
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* POSIX Standard: 5.6 File Characteristics <sys/stat.h>
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*/
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#ifndef _SYS_STAT_H
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#define _SYS_STAT_H 1
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#include <features.h>
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#include <bits/types.h> /* For __mode_t and __dev_t. */
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#if defined __USE_XOPEN || defined __USE_XOPEN2K || defined __USE_ATFILE
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# if defined __USE_XOPEN || defined __USE_XOPEN2K
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# define __need_time_t
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# endif
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# ifdef __USE_ATFILE
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# define __need_timespec
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# endif
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# include <time.h> /* For time_t resp. timespec. */
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#endif
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#if defined __USE_XOPEN || defined __USE_XOPEN2K
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/* The Single Unix specification says that some more types are
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available here. */
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# ifndef __dev_t_defined
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typedef __dev_t dev_t;
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# define __dev_t_defined
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# endif
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# ifndef __gid_t_defined
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typedef __gid_t gid_t;
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# define __gid_t_defined
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# endif
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# ifndef __ino_t_defined
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# ifndef __USE_FILE_OFFSET64
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typedef __ino_t ino_t;
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# else
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typedef __ino64_t ino_t;
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# endif
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# define __ino_t_defined
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# endif
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# ifndef __mode_t_defined
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typedef __mode_t mode_t;
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# define __mode_t_defined
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# endif
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# ifndef __nlink_t_defined
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typedef __nlink_t nlink_t;
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# define __nlink_t_defined
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# endif
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# ifndef __off_t_defined
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# ifndef __USE_FILE_OFFSET64
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typedef __off_t off_t;
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# else
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typedef __off64_t off_t;
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# endif
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# define __off_t_defined
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# endif
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# ifndef __uid_t_defined
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typedef __uid_t uid_t;
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# define __uid_t_defined
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# endif
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#endif /* X/Open */
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#ifdef __USE_UNIX98
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# ifndef __blkcnt_t_defined
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# ifndef __USE_FILE_OFFSET64
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typedef __blkcnt_t blkcnt_t;
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# else
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typedef __blkcnt64_t blkcnt_t;
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# endif
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# define __blkcnt_t_defined
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# endif
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# ifndef __blksize_t_defined
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typedef __blksize_t blksize_t;
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# define __blksize_t_defined
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# endif
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#endif /* Unix98 */
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__BEGIN_DECLS
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#include <bits/stat.h>
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#if defined __USE_MISC || defined __USE_XOPEN
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# define S_IFMT __S_IFMT
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# define S_IFDIR __S_IFDIR
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# define S_IFCHR __S_IFCHR
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# define S_IFBLK __S_IFBLK
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# define S_IFREG __S_IFREG
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# ifdef __S_IFIFO
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# define S_IFIFO __S_IFIFO
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# endif
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# ifdef __S_IFLNK
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# define S_IFLNK __S_IFLNK
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# endif
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# if (defined __USE_MISC || defined __USE_UNIX98) \
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&& defined __S_IFSOCK
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# define S_IFSOCK __S_IFSOCK
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# endif
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#endif
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/* Test macros for file types. */
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#define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask))
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#define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR)
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#define S_ISCHR(mode) __S_ISTYPE((mode), __S_IFCHR)
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#define S_ISBLK(mode) __S_ISTYPE((mode), __S_IFBLK)
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#define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG)
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#ifdef __S_IFIFO
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# define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFIFO)
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#endif
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#ifdef __S_IFLNK
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# define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK)
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#endif
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#if defined __USE_MISC && !defined __S_IFLNK
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# define S_ISLNK(mode) 0
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#endif
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#if (defined __USE_UNIX98 || defined __USE_XOPEN2K) \
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&& defined __S_IFSOCK
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# define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
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#elif defined __USE_XOPEN2K
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# define S_ISSOCK(mode) 0
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#endif
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/* These are from POSIX.1b. If the objects are not implemented using separate
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distinct file types, the macros always will evaluate to zero. Unlike the
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other S_* macros the following three take a pointer to a `struct stat'
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object as the argument. */
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#ifdef __USE_POSIX199309
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# define S_TYPEISMQ(buf) __S_TYPEISMQ(buf)
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# define S_TYPEISSEM(buf) __S_TYPEISSEM(buf)
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# define S_TYPEISSHM(buf) __S_TYPEISSHM(buf)
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#endif
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/* Protection bits. */
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#define S_ISUID __S_ISUID /* Set user ID on execution. */
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#define S_ISGID __S_ISGID /* Set group ID on execution. */
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#if defined __USE_MISC || defined __USE_XOPEN
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/* Save swapped text after use (sticky bit). This is pretty well obsolete. */
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# define S_ISVTX __S_ISVTX
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#endif
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#define S_IRUSR __S_IREAD /* Read by owner. */
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#define S_IWUSR __S_IWRITE /* Write by owner. */
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#define S_IXUSR __S_IEXEC /* Execute by owner. */
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/* Read, write, and execute by owner. */
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#define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC)
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#ifdef __USE_MISC
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# define S_IREAD S_IRUSR
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# define S_IWRITE S_IWUSR
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# define S_IEXEC S_IXUSR
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#endif
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#define S_IRGRP (S_IRUSR >> 3) /* Read by group. */
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#define S_IWGRP (S_IWUSR >> 3) /* Write by group. */
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#define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */
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/* Read, write, and execute by group. */
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#define S_IRWXG (S_IRWXU >> 3)
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#define S_IROTH (S_IRGRP >> 3) /* Read by others. */
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#define S_IWOTH (S_IWGRP >> 3) /* Write by others. */
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#define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */
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/* Read, write, and execute by others. */
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#define S_IRWXO (S_IRWXG >> 3)
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#ifdef __USE_MISC
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/* Macros for common mode bit masks. */
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# define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
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# define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */
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# define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/
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# define S_BLKSIZE 512 /* Block size for `st_blocks'. */
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#endif
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#ifndef __USE_FILE_OFFSET64
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/* Get file attributes for FILE and put them in BUF. */
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extern int stat (const char *__restrict __file,
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struct stat *__restrict __buf) __THROW __nonnull ((1, 2));
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/* Get file attributes for the file, device, pipe, or socket
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that file descriptor FD is open on and put them in BUF. */
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extern int fstat (int __fd, struct stat *__buf) __THROW __nonnull ((2));
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#else
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# ifdef __REDIRECT_NTH
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extern int __REDIRECT_NTH (stat, (const char *__restrict __file,
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struct stat *__restrict __buf), stat64)
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__nonnull ((1, 2));
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extern int __REDIRECT_NTH (fstat, (int __fd, struct stat *__buf), fstat64)
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__nonnull ((2));
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# else
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# define stat stat64
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# define fstat fstat64
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# endif
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#endif
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#ifdef __USE_LARGEFILE64
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extern int stat64 (const char *__restrict __file,
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struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2));
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extern int fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2));
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#endif
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#ifdef __USE_ATFILE
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/* Similar to stat, get the attributes for FILE and put them in BUF.
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Relative path names are interpreted relative to FD unless FD is
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AT_FDCWD. */
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# ifndef __USE_FILE_OFFSET64
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extern int fstatat (int __fd, const char *__restrict __file,
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struct stat *__restrict __buf, int __flag)
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__THROW __nonnull ((2, 3));
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# else
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# ifdef __REDIRECT_NTH
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extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
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struct stat *__restrict __buf,
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int __flag),
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fstatat64) __nonnull ((2, 3));
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# else
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# define fstatat fstatat64
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# endif
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# endif
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# ifdef __USE_LARGEFILE64
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extern int fstatat64 (int __fd, const char *__restrict __file,
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struct stat64 *__restrict __buf, int __flag)
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__THROW __nonnull ((2, 3));
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# endif
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#endif
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#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
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# ifndef __USE_FILE_OFFSET64
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/* Get file attributes about FILE and put them in BUF.
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If FILE is a symbolic link, do not follow it. */
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extern int lstat (const char *__restrict __file,
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struct stat *__restrict __buf) __THROW __nonnull ((1, 2));
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# else
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# ifdef __REDIRECT_NTH
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extern int __REDIRECT_NTH (lstat,
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(const char *__restrict __file,
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struct stat *__restrict __buf), lstat64)
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__nonnull ((1, 2));
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# else
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# define lstat lstat64
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# endif
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# endif
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# ifdef __USE_LARGEFILE64
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extern int lstat64 (const char *__restrict __file,
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struct stat64 *__restrict __buf)
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__THROW __nonnull ((1, 2));
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# endif
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#endif
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/* Set file access permissions for FILE to MODE.
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If FILE is a symbolic link, this affects its target instead. */
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extern int chmod (const char *__file, __mode_t __mode)
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__THROW __nonnull ((1));
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#ifdef __USE_MISC
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/* Set file access permissions for FILE to MODE.
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If FILE is a symbolic link, this affects the link itself
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rather than its target. */
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extern int lchmod (const char *__file, __mode_t __mode)
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__THROW __nonnull ((1));
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#endif
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/* Set file access permissions of the file FD is open on to MODE. */
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#ifdef __USE_POSIX
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extern int fchmod (int __fd, __mode_t __mode) __THROW;
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#endif
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#ifdef __USE_ATFILE
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/* Set file access permissions of FILE relative to
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the directory FD is open on. */
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extern int fchmodat (int __fd, const char *__file, __mode_t __mode,
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int __flag)
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__THROW __nonnull ((2)) __wur;
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#endif /* Use ATFILE. */
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/* Set the file creation mask of the current process to MASK,
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and return the old creation mask. */
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extern __mode_t umask (__mode_t __mask) __THROW;
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#ifdef __USE_GNU
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/* Get the current `umask' value without changing it.
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This function is only available under the GNU Hurd. */
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extern __mode_t getumask (void) __THROW;
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#endif
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/* Create a new directory named PATH, with permission bits MODE. */
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extern int mkdir (const char *__path, __mode_t __mode)
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__THROW __nonnull ((1));
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#ifdef __USE_ATFILE
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/* Like mkdir, create a new directory with permission bits MODE. But
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interpret relative PATH names relative to the directory associated
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with FD. */
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extern int mkdirat (int __fd, const char *__path, __mode_t __mode)
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__THROW __nonnull ((2));
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#endif
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/* Create a device file named PATH, with permission and special bits MODE
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and device number DEV (which can be constructed from major and minor
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device numbers with the `makedev' macro above). */
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#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
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extern int mknod (const char *__path, __mode_t __mode, __dev_t __dev)
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__THROW __nonnull ((1));
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# ifdef __USE_ATFILE
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/* Like mknod, create a new device file with permission bits MODE and
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device number DEV. But interpret relative PATH names relative to
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the directory associated with FD. */
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extern int mknodat (int __fd, const char *__path, __mode_t __mode,
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__dev_t __dev) __THROW __nonnull ((2));
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# endif
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#endif
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/* Create a new FIFO named PATH, with permission bits MODE. */
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extern int mkfifo (const char *__path, __mode_t __mode)
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__THROW __nonnull ((1));
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#ifdef __USE_ATFILE
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/* Like mkfifo, create a new FIFO with permission bits MODE. But
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interpret relative PATH names relative to the directory associated
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with FD. */
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extern int mkfifoat (int __fd, const char *__path, __mode_t __mode)
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__THROW __nonnull ((2));
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#endif
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#ifdef __USE_ATFILE
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|
/* Set file access and modification times relative to directory file
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|
descriptor. */
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extern int utimensat (int __fd, const char *__path,
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|
const struct timespec __times[2],
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int __flags)
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__THROW __nonnull ((2));
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#endif
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#ifdef __USE_XOPEN2K8
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/* Set file access and modification times of the file associated with FD. */
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extern int futimens (int __fd, const struct timespec __times[2]) __THROW;
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#endif
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/* To allow the `struct stat' structure and the file type `mode_t'
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|
bits to vary without changing shared library major version number,
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|
the `stat' family of functions and `mknod' are in fact inline
|
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|
wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod',
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which all take a leading version-number argument designating the
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data structure and bits used. <bits/stat.h> defines _STAT_VER with
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the version number corresponding to `struct stat' as defined in
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that file; and _MKNOD_VER with the version number corresponding to
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the S_IF* macros defined therein. It is arranged that when not
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inlined these function are always statically linked; that way a
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dynamically-linked executable always encodes the version number
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corresponding to the data structures it uses, so the `x' functions
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in the shared library can adapt without needing to recompile all
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callers. */
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#ifndef _STAT_VER
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# define _STAT_VER 0
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#endif
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#ifndef _MKNOD_VER
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# define _MKNOD_VER 0
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#endif
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|
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/* Wrappers for stat and mknod system calls. */
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|
|
#ifndef __USE_FILE_OFFSET64
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|
|
extern int __fxstat (int __ver, int __fildes, struct stat *__stat_buf)
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|
|
__THROW __nonnull ((3));
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|
|
extern int __xstat (int __ver, const char *__filename,
|
|
|
struct stat *__stat_buf) __THROW __nonnull ((2, 3));
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|
extern int __lxstat (int __ver, const char *__filename,
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|
|
struct stat *__stat_buf) __THROW __nonnull ((2, 3));
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|
|
extern int __fxstatat (int __ver, int __fildes, const char *__filename,
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struct stat *__stat_buf, int __flag)
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__THROW __nonnull ((3, 4));
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#else
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# ifdef __REDIRECT_NTH
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extern int __REDIRECT_NTH (__fxstat, (int __ver, int __fildes,
|
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|
struct stat *__stat_buf), __fxstat64)
|
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__nonnull ((3));
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|
extern int __REDIRECT_NTH (__xstat, (int __ver, const char *__filename,
|
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|
struct stat *__stat_buf), __xstat64)
|
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|
__nonnull ((2, 3));
|
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|
extern int __REDIRECT_NTH (__lxstat, (int __ver, const char *__filename,
|
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|
struct stat *__stat_buf), __lxstat64)
|
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|
__nonnull ((2, 3));
|
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|
extern int __REDIRECT_NTH (__fxstatat, (int __ver, int __fildes,
|
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|
const char *__filename,
|
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|
struct stat *__stat_buf, int __flag),
|
|
|
__fxstatat64) __nonnull ((3, 4));
|
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|
|
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|
# else
|
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# define __fxstat __fxstat64
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|
# define __xstat __xstat64
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|
# define __lxstat __lxstat64
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|
# endif
|
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_LARGEFILE64
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|
|
extern int __fxstat64 (int __ver, int __fildes, struct stat64 *__stat_buf)
|
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|
__THROW __nonnull ((3));
|
|
|
extern int __xstat64 (int __ver, const char *__filename,
|
|
|
struct stat64 *__stat_buf) __THROW __nonnull ((2, 3));
|
|
|
extern int __lxstat64 (int __ver, const char *__filename,
|
|
|
struct stat64 *__stat_buf) __THROW __nonnull ((2, 3));
|
|
|
extern int __fxstatat64 (int __ver, int __fildes, const char *__filename,
|
|
|
struct stat64 *__stat_buf, int __flag)
|
|
|
__THROW __nonnull ((3, 4));
|
|
|
#endif
|
|
|
extern int __xmknod (int __ver, const char *__path, __mode_t __mode,
|
|
|
__dev_t *__dev) __THROW __nonnull ((2, 4));
|
|
|
|
|
|
extern int __xmknodat (int __ver, int __fd, const char *__path,
|
|
|
__mode_t __mode, __dev_t *__dev)
|
|
|
__THROW __nonnull ((3, 5));
|
|
|
|
|
|
#ifdef __USE_EXTERN_INLINES
|
|
|
/* Inlined versions of the real stat and mknod functions. */
|
|
|
|
|
|
__extern_inline int
|
|
|
__NTH (stat (const char *__path, struct stat *__statbuf))
|
|
|
{
|
|
|
return __xstat (_STAT_VER, __path, __statbuf);
|
|
|
}
|
|
|
|
|
|
# if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
|
|
|
__extern_inline int
|
|
|
__NTH (lstat (const char *__path, struct stat *__statbuf))
|
|
|
{
|
|
|
return __lxstat (_STAT_VER, __path, __statbuf);
|
|
|
}
|
|
|
# endif
|
|
|
|
|
|
__extern_inline int
|
|
|
__NTH (fstat (int __fd, struct stat *__statbuf))
|
|
|
{
|
|
|
return __fxstat (_STAT_VER, __fd, __statbuf);
|
|
|
}
|
|
|
|
|
|
# ifdef __USE_ATFILE
|
|
|
__extern_inline int
|
|
|
__NTH (fstatat (int __fd, const char *__filename, struct stat *__statbuf,
|
|
|
int __flag))
|
|
|
{
|
|
|
return __fxstatat (_STAT_VER, __fd, __filename, __statbuf, __flag);
|
|
|
}
|
|
|
# endif
|
|
|
|
|
|
# ifdef __USE_MISC
|
|
|
__extern_inline int
|
|
|
__NTH (mknod (const char *__path, __mode_t __mode, __dev_t __dev))
|
|
|
{
|
|
|
return __xmknod (_MKNOD_VER, __path, __mode, &__dev);
|
|
|
}
|
|
|
# endif
|
|
|
|
|
|
# ifdef __USE_ATFILE
|
|
|
__extern_inline int
|
|
|
__NTH (mknodat (int __fd, const char *__path, __mode_t __mode,
|
|
|
__dev_t __dev))
|
|
|
{
|
|
|
return __xmknodat (_MKNOD_VER, __fd, __path, __mode, &__dev);
|
|
|
}
|
|
|
# endif
|
|
|
|
|
|
# if defined __USE_LARGEFILE64 \
|
|
|
&& (! defined __USE_FILE_OFFSET64 \
|
|
|
|| (defined __REDIRECT_NTH && defined __OPTIMIZE__))
|
|
|
__extern_inline int
|
|
|
__NTH (stat64 (const char *__path, struct stat64 *__statbuf))
|
|
|
{
|
|
|
return __xstat64 (_STAT_VER, __path, __statbuf);
|
|
|
}
|
|
|
|
|
|
# if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
|
|
|
__extern_inline int
|
|
|
__NTH (lstat64 (const char *__path, struct stat64 *__statbuf))
|
|
|
{
|
|
|
return __lxstat64 (_STAT_VER, __path, __statbuf);
|
|
|
}
|
|
|
# endif
|
|
|
|
|
|
__extern_inline int
|
|
|
__NTH (fstat64 (int __fd, struct stat64 *__statbuf))
|
|
|
{
|
|
|
return __fxstat64 (_STAT_VER, __fd, __statbuf);
|
|
|
}
|
|
|
|
|
|
# ifdef __USE_ATFILE
|
|
|
__extern_inline int
|
|
|
__NTH (fstatat64 (int __fd, const char *__filename, struct stat64 *__statbuf,
|
|
|
int __flag))
|
|
|
{
|
|
|
return __fxstatat64 (_STAT_VER, __fd, __filename, __statbuf, __flag);
|
|
|
}
|
|
|
# endif
|
|
|
|
|
|
# endif
|
|
|
|
|
|
#endif
|
|
|
|
|
|
__END_DECLS
|
|
|
|
|
|
|
|
|
#endif /* sys/stat.h */
|