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| 1 | /* O_*, F_*, FD_* bit values for Linux. |
|---|---|
| 2 | Copyright (C) 1995-2024 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 00000100 /* not fcntl. */ |
| 24 | #define O_TRUNC 00001000 /* not fcntl. */ |
| 25 | #define O_EXCL 00000200 /* not fcntl. */ |
| 26 | #define O_NOCTTY 00000400 /* not fcntl. */ |
| 27 | |
| 28 | #define O_NONBLOCK 00004000 |
| 29 | #define O_APPEND 00002000 |
| 30 | #define O_SYNC 04000000 |
| 31 | |
| 32 | #define __O_DIRECTORY 00200000 /* Must be a directory. */ |
| 33 | #define __O_NOFOLLOW 00400000 /* Do not follow links. */ |
| 34 | #define __O_CLOEXEC 02000000 /* Set close_on_exec. */ |
| 35 | |
| 36 | #define __O_DIRECT 00040000 /* Direct disk access. */ |
| 37 | #define __O_NOATIME 01000000 /* Do not set atime. */ |
| 38 | #define __O_PATH 010000000 /* Resolve pathname but do not open file. */ |
| 39 | |
| 40 | /* Not necessary, files are always with 64bit off_t. */ |
| 41 | #define __O_LARGEFILE 00100000 |
| 42 | |
| 43 | #define __O_DSYNC 00010000 /* Synchronize data. */ |
| 44 | |
| 45 | #define F_GETLK 5 /* Get record locking info. */ |
| 46 | #define F_SETLK 6 /* Set record locking info (non-blocking). */ |
| 47 | #define F_SETLKW 7 /* Set record locking info (blocking). */ |
| 48 | #define F_GETLK64 12 /* Get record locking info. */ |
| 49 | #define F_SETLK64 13 /* Set record locking info (non-blocking). */ |
| 50 | #define F_SETLKW64 14 /* Set record locking info (blocking). */ |
| 51 | |
| 52 | #define __F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ |
| 53 | #define __F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ |
| 54 | |
| 55 | /* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ |
| 56 | #define F_RDLCK 0 /* Read lock. */ |
| 57 | #define F_WRLCK 1 /* Write lock. */ |
| 58 | #define F_UNLCK 2 /* Remove lock. */ |
| 59 | |
| 60 | /* for old implementation of bsd flock (). */ |
| 61 | #define F_EXLCK 4 /* or 3. */ |
| 62 | #define F_SHLCK 8 /* or 4. */ |
| 63 | |
| 64 | /* We don't need to support __USE_FILE_OFFSET64. */ |
| 65 | struct flock |
| 66 | { |
| 67 | short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ |
| 68 | short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ |
| 69 | __off_t l_start; /* Offset where the lock begins. */ |
| 70 | __off_t l_len; /* Size of the locked area; zero means until EOF. */ |
| 71 | __pid_t l_pid; /* Process holding the lock. */ |
| 72 | }; |
| 73 | |
| 74 | #ifdef __USE_LARGEFILE64 |
| 75 | struct flock64 |
| 76 | { |
| 77 | short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ |
| 78 | short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ |
| 79 | __off64_t l_start; /* Offset where the lock begins. */ |
| 80 | __off64_t l_len; /* Size of the locked area; zero means until EOF. */ |
| 81 | __pid_t l_pid; /* Process holding the lock. */ |
| 82 | }; |
| 83 | #endif |
| 84 | |
| 85 | /* Include generic Linux declarations. */ |
| 86 | #include <bits/fcntl-linux.h> |
| 87 |
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