1  /* O_*, F_*, FD_* bit values for Linux.
       2     Copyright (C) 1995-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library.  If not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #ifndef	_FCNTL_H
      20  # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
      21  #endif
      22  
      23  #define O_CREAT		00000400 /* not fcntl */
      24  #define O_EXCL		00002000 /* not fcntl */
      25  #define O_NOCTTY	00400000 /* not fcntl */
      26  #define O_APPEND	00000010
      27  #define O_NONBLOCK	00200000
      28  #define __O_DSYNC	01000000
      29  #define __O_SYNC	00100000
      30  #define O_SYNC		(__O_SYNC|__O_DSYNC)
      31  
      32  #define __O_DIRECTORY	000010000 /* Must be a directory.  */
      33  #define __O_NOFOLLOW	000000200 /* Do not follow links.  */
      34  #define __O_CLOEXEC	010000000 /* Set close_on_exec.  */
      35  #define __O_NOATIME	004000000 /* Do not set atime.  */
      36  #define __O_PATH        020000000
      37  #define __O_TMPFILE     040010000 /* Atomically create nameless file. */
      38  
      39  #define __O_LARGEFILE	00004000
      40  
      41  #define F_GETLK64	8	/* Get record locking info.  */
      42  #define F_SETLK64	9	/* Set record locking info (non-blocking).  */
      43  #define F_SETLKW64	10	/* Set record locking info (blocking).  */
      44  
      45  #define __F_GETOWN	11	/* Get owner of socket (receiver of SIGIO).  */
      46  #define __F_SETOWN	12	/* Set owner of socket (receiver of SIGIO).  */
      47  
      48  #define __F_SETSIG	13	/* Set number of signal to be sent.  */
      49  #define __F_GETSIG	14	/* Get number of signal to be sent.  */
      50  
      51  /* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
      52  #define F_RDLCK		1	/* Read lock.  */
      53  #define F_WRLCK		2	/* Write lock.  */
      54  #define F_UNLCK		3	/* Remove lock.  */
      55  
      56  struct flock
      57    {
      58      short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
      59      short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
      60  #ifndef __USE_FILE_OFFSET64
      61      __off_t l_start;	/* Offset where the lock begins.  */
      62      __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
      63  #else
      64      __off64_t l_start;	/* Offset where the lock begins.  */
      65      __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
      66  #endif
      67      __pid_t l_pid;	/* Process holding the lock.  */
      68    };
      69  
      70  #ifdef __USE_LARGEFILE64
      71  struct flock64
      72    {
      73      short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
      74      short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
      75      __off64_t l_start;	/* Offset where the lock begins.  */
      76      __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
      77      __pid_t l_pid;	/* Process holding the lock.  */
      78    };
      79  #endif
      80  
      81  /* Include generic Linux declarations.  */
      82  #include <bits/fcntl-linux.h>