mirror of https://github.com/acidanthera/audk.git
151 lines
6.5 KiB
C
151 lines
6.5 KiB
C
/** @file
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This file includes the definitions for open and fcntl described by POSIX
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for <fcntl.h>; it also includes related kernel definitions.
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Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made
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available under the terms and conditions of the BSD License which
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accompanies this distribution. The full text of the license may be found
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at http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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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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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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3. 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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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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fcntl.h 8.3 (Berkeley) 1/21/94
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NetBSD: fcntl.h,v 1.34 2006/10/05 14:48:33 chs Exp
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*/
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#ifndef _SYS_FCNTL_H_
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#define _SYS_FCNTL_H_
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#include <sys/featuretest.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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/*
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* File status flags: these are used by open(2), fcntl(2).
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* They are also used (indirectly) in the kernel file structure f_flags,
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* which is a superset of the open/fcntl flags. Open flags and f_flags
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* are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags).
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* Open/fcntl flags begin with O_; kernel-internal flags begin with F.
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*/
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/* open-only flags */
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#define O_RDONLY 0x00000000 /* open for reading only */
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#define O_WRONLY 0x00000001 /* open for writing only */
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#define O_RDWR 0x00000002 /* open for reading and writing */
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#define O_ACCMODE 0x00000003 /* mask for above modes */
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/*
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* Kernel encoding of open mode; separate read and write bits that are
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* independently testable: 1 greater than the above.
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*
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* XXX
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* FREAD and FWRITE are excluded from the #ifdef _KERNEL so that TIOCFLUSH,
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* which was documented to use FREAD/FWRITE, continues to work.
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*/
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#define FREAD 0x00000001
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#define FWRITE 0x00000002
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#define O_NONBLOCK 0x00000004 /* no delay */
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#define O_APPEND 0x00000008 /* set append mode */
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#define O_CREAT 0x00000200 /* create if nonexistent */
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#define O_TRUNC 0x00000400 /* truncate to zero length */
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#define O_EXCL 0x00000800 /* error if already exists */
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//#define O_DIRECT 0x00080000 /* direct I/O hint */
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#define O_SETMASK 0x0000000F /* Flags modifiable by F_SETFD (fcntl) */
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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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#define F_CLOSEM 10 /* close all fds >= to the one given */
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#define F_MAXFD 11 /* return the max open fd */
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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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/* Constants for fcntl's passed to the underlying fs - like ioctl's. */
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#define F_PARAM_MASK 0xfff
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#define F_PARAM_LEN(x) (((x) >> 16) & F_PARAM_MASK)
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#define F_PARAM_MAX 4095
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#define F_FSCTL (int)0x80000000 /* This fcntl goes to the fs */
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#define F_FSVOID (int)0x40000000 /* no parameters */
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#define F_FSOUT (int)0x20000000 /* copy out parameter */
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#define F_FSIN (int)0x10000000 /* copy in parameter */
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#define F_FSINOUT (F_FSIN | F_FSOUT)
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#define F_FSDIRMASK (int)0x70000000 /* mask for IN/OUT/VOID */
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#define F_FSPRIV (int)0x00008000 /* command is fs-specific */
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/* Always ensure that these are consistent with <stdio.h> and <unistd.h>! */
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#ifndef SEEK_SET
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#define SEEK_SET 0 /* set file offset to offset */
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#endif
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#ifndef SEEK_CUR
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#define SEEK_CUR 1 /* set file offset to current plus offset */
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#endif
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#ifndef SEEK_END
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#define SEEK_END 2 /* set file offset to EOF plus offset */
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#endif
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#include <sys/EfiCdefs.h>
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__BEGIN_DECLS
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#ifndef __FCNTL_SYSCALLS_DECLARED
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#define __FCNTL_SYSCALLS_DECLARED
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int open(const char *, int, int );
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int creat(const char *, mode_t);
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int fcntl(int, int, ...);
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#endif // __FCNTL_SYSCALLS_DECLARED
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__END_DECLS
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#endif /* !_SYS_FCNTL_H_ */
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