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134 lines
4.7 KiB
C
134 lines
4.7 KiB
C
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/*-
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* Copyright (c) 1983, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* [<EFBFBD>3 Deleted as of 22Jul99, see
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* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
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* for details]
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)fcntl.h 8.3 (Berkeley) 1/21/94
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*
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* Adapted for GUSI by Matthias Neeracher <neeri@iis.ee.ethz.ch>
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*/
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#ifndef _FCNTL_H_
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#define _FCNTL_H_
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/*
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* This file includes the definitions for open and fcntl
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* described by POSIX for <fcntl.h>; it also includes
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* related kernel definitions.
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*/
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#include <sys/types.h>
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/* open-only flags */
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#define O_RDONLY 0x0001 /* open for reading only */
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#define O_WRONLY 0x0002 /* open for writing only */
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#define O_RDWR 0x0000 /* open for reading and writing */
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#define O_ACCMODE 0x0003 /* mask for above modes */
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#define O_NONBLOCK 0x0004 /* no delay */
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#define O_APPEND 0x0008 /* set append mode */
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#define O_CREAT 0x0200 /* create if nonexistant */
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#define O_TRUNC 0x0400 /* truncate to zero length */
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#define O_EXCL 0x0800 /* error if already exists */
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#ifndef _POSIX_SOURCE
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/* Mac specific */
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#define O_ALIAS 0x2000 /* Open alias file (if the file is an alias) */
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#define O_RSRC 0x4000 /* Open the resource fork */
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#endif
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/* defined by POSIX 1003.1; BSD default, so no bit required */
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#define O_NOCTTY 0 /* don't assign controlling terminal */
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#ifndef _POSIX_SOURCE
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#define FNDELAY O_NONBLOCK /* compat */
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#endif
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/*
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* Constants used for fcntl(2)
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*/
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/* command values */
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#define F_DUPFD 0 /* duplicate file descriptor */
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#define F_GETFD 1 /* get file descriptor flags */
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#define F_SETFD 2 /* set file descriptor flags */
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#define F_GETFL 3 /* get file status flags */
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#define F_SETFL 4 /* set file status flags */
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#define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */
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#define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */
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#define F_GETLK 7 /* get record locking information */
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#define F_SETLK 8 /* set record locking information */
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#define F_SETLKW 9 /* F_SETLK; wait if blocked */
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/* file descriptor flags (F_GETFD, F_SETFD) */
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#define FD_CLOEXEC 1 /* close-on-exec flag */
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/* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */
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#define F_RDLCK 1 /* shared or read lock */
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#define F_UNLCK 2 /* unlock */
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#define F_WRLCK 3 /* exclusive or write lock */
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/*
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* Advisory file segment locking data type -
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* information passed to system by user
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*/
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struct flock {
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off_t l_start; /* starting offset */
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off_t l_len; /* len = 0 means until end of file */
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pid_t l_pid; /* lock owner */
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short l_type; /* lock type: read/write, etc. */
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short l_whence; /* type of l_start */
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};
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#include <sys/cdefs.h>
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#include <stdio.h>
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__BEGIN_DECLS
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int open __P((const char *, int, ...));
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int creat __P((const char *, ...));
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int fcntl __P((int, int, ...));
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/* This properly belongs into stdio.h, but that header is outside of
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GUSI's control
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*/
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#ifdef __MWERKS__
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FILE * fdopen(int fildes, char *type);
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#else
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FILE * fdopen(int fildes, const char *type);
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#endif
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__END_DECLS
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#endif /* !_FCNTL_H_ */
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