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- /* O_*, F_*, FD_* bit values for stub configuration.
- Copyright (C) 1991, 1992 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 Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- /* These values should be changed as appropriate for your system. */
-
- #ifndef _FCNTLBITS_H
-
- #define _FCNTLBITS_H 1
-
-
- /* File access modes for `open' and `fcntl'. */
- #define O_RDONLY 0 /* Open read-only. */
- #define O_WRONLY 1 /* Open write-only. */
- #define O_RDWR 2 /* Open read/write. */
-
-
- /* Bits OR'd into the second argument to open. */
- #define O_CREAT 0x0200 /* Create file if it doesn't exist. */
- #define O_EXCL 0x0800 /* Fail if file already exists. */
- #define O_TRUNC 0x0400 /* Truncate file to zero length. */
- #define O_NOCTTY 0x0100 /* Don't assign a controlling terminal. */
-
- /* File status flags for `open' and `fcntl'. */
- #define O_APPEND 0x0008 /* Writes append to the file. */
- #define O_NONBLOCK 0x0004 /* Non-blocking I/O. */
-
- #ifdef __USE_BSD
- #define O_NDELAY O_NONBLOCK
- #endif
-
- /* Mask for file access modes. This is system-dependent in case
- some system ever wants to define some other flavor of access. */
- #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
-
- /* Values for the second argument to `fcntl'. */
- #define F_DUPFD 0 /* Duplicate file descriptor. */
- #define F_GETFD 1 /* Get file descriptor flags. */
- #define F_SETFD 2 /* Set file descriptor flags. */
- #define F_GETFL 3 /* Get file status flags. */
- #define F_SETFL 4 /* Set file status flags. */
- #ifdef __USE_BSD
- #define F_GETOWN 5 /* Get owner (receiver of SIGIO). */
- #define F_SETOWN 6 /* Set owner (receiver of SIGIO). */
- #endif
- #define F_GETLK 7 /* Get record locking info. */
- #define F_SETLK 8 /* Set record locking info. */
- #define F_SETLKW 9 /* Set record locking info, wait. */
-
- /* File descriptor flags used with F_GETFD and F_SETFD. */
- #define FD_CLOEXEC 1 /* Close on exec. */
-
-
- #include <gnu/types.h>
-
- /* The structure describing an advisory lock. This is the type of the third
- argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests. */
- 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. */
- };
-
- /* Values for the `l_type' field of a `struct flock'. */
- #define F_RDLCK 1 /* Read lock. */
- #define F_WRLCK 2 /* Write lock. */
- #define F_UNLCK 3 /* Remove lock. */
-
-
- #endif /* fcntlbits.h */
-