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  $   ˆl–Ðz¾”*ClÊq@‚àCq¦ÔÅ£Ä„Zh_ÁÆÇ ,²    /* Copyright (C) 1991-2021 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: 6.5 File Control Operations	<fcntl.h>
 */

#ifndef	_FCNTL_H
#define	_FCNTL_H	1

#include <features.h>

/* This must be early so <bits/fcntl.h> can define types winningly.  */
__BEGIN_DECLS

/* Get __mode_t, __dev_t and __off_t  .*/
#include <bits/types.h>

/* Get the definitions of O_*, F_*, FD_*: all the
   numbers and flag bits for `open', `fcntl', et al.  */
#include <bits/fcntl.h>

/* Detect if open needs mode as a third argument (or for openat as a fourth
   argument).  */
#ifdef __O_TMPFILE
# define __OPEN_NEEDS_MODE(oflag) \
  (((oflag) & O_CREAT) != 0 || ((oflag) & __O_TMPFILE) == __O_TMPFILE)
#else
# define __OPEN_NEEDS_MODE(oflag) (((oflag) & O_CREAT) != 0)
#endif

/* POSIX.1-2001 specifies that these types are defined by <fcntl.h>.
   Earlier POSIX standards permitted any type ending in `_t' to be defined
   by any POSIX header, so we don't conditionalize the definitions here.  */
#ifndef __mode_t_defined
typedef __mode_t mode_t;
# define __mode_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

#if defined __USE_LARGEFILE64 && !defined __off64_t_defined
typedef __off64_t off64_t;
# define __off64_t_defined
#endif

#ifndef __pid_t_defined
typedef __pid_t pid_t;
# define __pid_t_defined
#endif

/* For XPG all symbols from <sys/stat.h> should also be available.  */
#ifdef __USE_XOPEN2K8
# include <bits/types/struct_timespec.h>
#endif
#if defined __USE_XOPEN || defined __USE_XOPEN2K8
# include <bits/stat.h>

# 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_UNIX98 || defined __USE_XOPEN2K8) && defined __S_IFSOCK
#  define S_IFSOCK	__S_IFSOCK
# 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)

# 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)
#endif

#ifdef	__USE_MISC
# ifndef R_OK			/* Verbatim from <unistd.h>.  Ugh.  */
/* Values for the second argument to access.
   These may be OR'd together.  */
#  define R_OK	4		/* Test for read permission.  */
#  define W_OK	2		/* Test f