/* O_*, F_*, FD_* bit values for Linux.
   Copyright (C) 1995-2023 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/>.  */

#ifndef _FCNTL_H
#  error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
#endif

#define O_CREAT 01000	/* not fcntl */
#define O_TRUNC 02000	/* not fcntl */
#define O_EXCL 04000	/* not fcntl */
#define O_NOCTTY 010000 /* not fcntl */

#define O_NONBLOCK 00004
#define O_APPEND 00010
#define O_SYNC 020040000

#define __O_DIRECTORY 0100000 /* Must be a directory.  */
#define __O_NOFOLLOW 0200000  /* Do not follow links.  */
#define __O_CLOEXEC 010000000 /* Set close_on_exec.  */

#define __O_DIRECT 02000000    /* Direct disk access.  */
#define __O_NOATIME 04000000   /* Do not set atime.  */
#define __O_PATH 040000000     /* Resolve pathname but do not open file.  */
#define __O_TMPFILE 0100100000 /* Atomically create nameless file.  */

/* Not necessary, files are always with 64bit off_t.  */
#define __O_LARGEFILE 0

#define __O_DSYNC 040000 /* Synchronize data.  */

#define F_GETLK 7	    /* Get record locking info.  */
#define F_SETLK 8	    /* Set record locking info (non-blocking).  */
#define F_SETLKW 9	    /* Set record locking info (blocking).  */
#define F_GETLK64 F_GETLK   /* Get record locking info.  */
#define F_SETLK64 F_SETLK   /* Set record locking info (non-blocking).  */
#define F_SETLKW64 F_SETLKW /* Set record locking info (blocking).  */

#define __F_SETOWN 5 /* Get owner of socket (receiver of SIGIO).  */
#define __F_GETOWN 6 /* Set owner of socket (receiver of SIGIO).  */

/* For posix fcntl() and `l_type' field of a `struct flock' for lockf() */
#define F_RDLCK 1 /* Read lock.  */
#define F_WRLCK 2 /* Write lock.  */
#define F_UNLCK 8 /* Remove lock.  */

/* for old implementation of bsd flock () */
#define F_EXLCK 16 /* or 3 */
#define F_SHLCK 32 /* or 4 */

/* We don't need to support __USE_FILE_OFFSET64.  */
struct flock
{
  short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  __off_t l_start;    /* Offset where the lock begins.  */
  __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
  __pid_t l_pid;      /* Process holding the lock.  */
};

#ifdef __USE_LARGEFILE64
struct flock64
{
  short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  __off64_t l_start;  /* Offset where the lock begins.  */
  __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  __pid_t l_pid;      /* Process holding the lock.  */
};
#endif

/* Include generic Linux declarations.  */
#include <bits/fcntl-linux.h>
