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- /* Copyright (C) 1991, 1992, 1994 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- /*
- * POSIX Standard: 6.5 File Control Operations <fcntl.h>
- */
-
- #ifndef _FCNTL_H
- #define _FCNTL_H
-
- #include <features.h>
- #include <sys/types.h>
- #include <gnu/types.h>
- #include <linux/fcntl.h>
-
- #ifndef FNDELAY
- #define FNDELAY O_NDELAY
- #endif
-
- __BEGIN_DECLS
-
- /* Create and open FILE, with mode MODE.
- This takes an `int' MODE argument because that is
- what `mode_t' will be widened to. */
- extern int creat __P ((__const char * __filename, mode_t __mode));
-
- /* Do the file control operation described by CMD on FD.
- The remaining arguments are interpreted depending on CMD. */
- extern int fcntl __P ((int __fildes,int __cmd, ...));
- extern int __fcntl __P ((int __fildes,int __cmd, ...));
-
- /* Open FILE and return a new file descriptor for it, or -1 on error.
- OFLAG determines the type of access used. If O_CREAT is on OFLAG,
- the third argument is taken as a `mode_t', the mode of the created file. */
- extern int open __P ((__const char * __filename, int __flags, ...));
- extern int __open __P ((__const char * __filename, int __flags, ...));
-
- #if defined (__USE_MISC) && !defined (F_LOCK)
- /* NOTE: These declarations also appear in <unistd.h>; be sure to keep both
- files consistent. Some systems have them there and some here, and some
- software depends on the macros being defined without including both. */
-
- /* `lockf' is a simpler interface to the locking facilities of `fcntl'.
- LEN is always relative to the current file position.
- The CMD argument is one of the following. */
-
- #define F_ULOCK 0 /* Unlock a previously locked region. */
- #define F_LOCK 1 /* Lock a region for exclusive use. */
- #define F_TLOCK 2 /* Test and lock a region for exclusive use. */
- #define F_TEST 3 /* Test a region for other processes locks. */
-
- extern int lockf __P ((int __fd, int __cmd, __off_t __len));
- #endif
-
- __END_DECLS
-
- #endif
-