1 /* O_*, F_*, FD_* bit values for Linux.
2    Copyright (C) 1995-2021 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		 01000	/* not fcntl */
24 #define O_TRUNC		 02000	/* not fcntl */
25 #define O_EXCL		 04000	/* not fcntl */
26 #define O_NOCTTY	010000	/* not fcntl */
27 
28 #define O_NONBLOCK	 00004
29 #define O_APPEND	 00010
30 #define O_SYNC		020040000
31 
32 #define __O_DIRECTORY	0100000	/* Must be a directory.  */
33 #define __O_NOFOLLOW	0200000	/* Do not follow links.  */
34 #define __O_CLOEXEC	010000000 /* Set close_on_exec.  */
35 
36 #define __O_DIRECT	02000000 /* Direct disk access.  */
37 #define __O_NOATIME	04000000 /* Do not set atime.  */
38 #define __O_PATH	040000000 /* Resolve pathname but do not open file.  */
39 #define __O_TMPFILE	0100100000 /* Atomically create nameless file.  */
40 
41 /* Not necessary, files are always with 64bit off_t.  */
42 #define __O_LARGEFILE	0
43 
44 #define __O_DSYNC	040000	/* Synchronize data.  */
45 
46 #define F_GETLK		7	/* Get record locking info.  */
47 #define F_SETLK		8	/* Set record locking info (non-blocking).  */
48 #define F_SETLKW	9	/* Set record locking info (blocking).  */
49 #define F_GETLK64	F_GETLK	/* Get record locking info.  */
50 #define F_SETLK64	F_SETLK	/* Set record locking info (non-blocking).  */
51 #define F_SETLKW64	F_SETLKW /* Set record locking info (blocking).  */
52 
53 #define __F_SETOWN	5	/* Get owner of socket (receiver of SIGIO).  */
54 #define __F_GETOWN	6	/* Set owner of socket (receiver of SIGIO).  */
55 
56 /* For posix fcntl() and `l_type' field of a `struct flock' for lockf() */
57 #define F_RDLCK		1	/* Read lock.  */
58 #define F_WRLCK		2	/* Write lock.  */
59 #define F_UNLCK		8	/* Remove lock.  */
60 
61 /* for old implementation of bsd flock () */
62 #define F_EXLCK		16	/* or 3 */
63 #define F_SHLCK		32	/* or 4 */
64 
65 /* We don't need to support __USE_FILE_OFFSET64.  */
66 struct flock
67   {
68     short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
69     short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
70     __off_t l_start;	/* Offset where the lock begins.  */
71     __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
72     __pid_t l_pid;	/* Process holding the lock.  */
73   };
74 
75 #ifdef __USE_LARGEFILE64
76 struct flock64
77   {
78     short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
79     short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
80     __off64_t l_start;	/* Offset where the lock begins.  */
81     __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
82     __pid_t l_pid;	/* Process holding the lock.  */
83   };
84 #endif
85 
86 /* Include generic Linux declarations.  */
87 #include <bits/fcntl-linux.h>
88