/*- * Copyright (c) 1983, 1990, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)fcntl.h 8.3 (Berkeley) 1/21/94 * $FreeBSD: src/sys/sys/fcntl.h,v 1.14 2002/09/17 22:22:50 mike Exp $ */ /** @file * FreeBSD 5.1 + EMX * * @changed bird: EMX isms. * @changed bird: Removed (non KERNEL) stuff we don't implement and added * EMX specific stuff. * @todo Consider implementing the flags and commands we don't currently * include. */ #ifndef _SYS_FCNTL_H_ #define _SYS_FCNTL_H_ #define _SYS_FCNTL_H /* bird: EMX */ /* * This file includes the definitions for open and fcntl * described by POSIX for ; it also includes * related kernel definitions. */ #include #include #if !defined(_MODE_T_DECLARED) && !defined(_MODE_T) /* bird: EMX */ typedef __mode_t mode_t; #define _MODE_T_DECLARED #define _MODE_T /* bird: EMX */ #endif #if !defined(_OFF_T_DECLARED) && !defined(_OFF_T) /* bird: EMX */ typedef __off_t off_t; #define _OFF_T_DECLARED #define _OFF_T /* bird: EMX */ #endif #if !defined(_PID_T_DECLARED) && !defined(_PID_T) /* bird: EMX */ typedef __pid_t pid_t; #define _PID_T_DECLARED #define _PID_T /* bird: EMX */ #endif /* * File status flags: these are used by open(2), fcntl(2). * They are also used (indirectly) in the kernel file structure f_flags, * which is a superset of the open/fcntl flags. Open flags and f_flags * are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags). * Open/fcntl flags begin with O_; kernel-internal flags begin with F. */ /* open-only flags */ #define O_RDONLY 0x0000 /* open for reading only */ #define O_WRONLY 0x0001 /* open for writing only */ #define O_RDWR 0x0002 /* open for reading and writing */ #define O_ACCMODE 0x0003 /* mask for above modes */ /* * Kernel encoding of open mode; separate read and write bits that are * independently testable: 1 greater than the above. * * XXX * FREAD and FWRITE are excluded from the #ifdef _KERNEL so that TIOCFLUSH, * which was documented to use FREAD/FWRITE, continues to work. */ #if __BSD_VISIBLE #ifndef FREAD /* bird: safety */ #define FREAD 0x0001 #define FWRITE 0x0002 #endif #endif /* bird: safety */ #define O_NONBLOCK 0x0004 /* no delay */ #define O_APPEND 0x0008 /* set append mode */ #if __BSD_VISIBLE #if 0 /* bird: not implemented - start */ #define O_SHLOCK 0x0010 /* open with shared file lock */ #define O_EXLOCK 0x0020 /* open with exclusive file lock */ #define O_ASYNC 0x0040 /* signal pgrp when data ready */ #endif /* bird: not implemented - end */ #define O_FSYNC 0x0080 /* synchronous writes */ #endif /* bird: EMX used 0x2000 for O_SYNC. */ #define O_SYNC 0x0080 /* POSIX synonym for O_FSYNC */ #if 0 /* bird: not implemented - start */ #if __BSD_VISIBLE #define O_NOFOLLOW 0x0100 /* don't follow symlinks */ #endif #endif /* bird: not implemented - end */ #define O_CREAT 0x0200 /* create if nonexistent */ #define O_TRUNC 0x0400 /* truncate to zero length */ #define O_EXCL 0x0800 /* error if already exists */ #ifdef _KERNEL /* FMARK/FDEFER kept in f_gcflags */ #define FMARK 0x1 /* mark during gc() */ #define FDEFER 0x2 /* defer for next gc pass */ #define FHASLOCK 0x4000 /* descriptor holds advisory lock */ #endif /* Defined by POSIX 1003.1; BSD default, but must be distinct from O_RDONLY. */ /* bird: EMX used 0x4000 for O_NOCTTY. */ #define O_NOCTTY 0x8000 /* don't assign controlling terminal */ #if 0 /* bird: not implemented - start */ #if __BSD_VISIBLE /* Attempt to bypass buffer cache */ #define O_DIRECT 0x00010000 #endif #endif /* bird: not implemented - end */ /* * XXX missing O_DSYNC, O_RSYNC. */ #ifdef _KERNEL /* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */ #define FFLAGS(oflags) ((oflags) + 1) #define OFLAGS(fflags) ((fflags) - 1) /* bits to save after open */ #define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FNONBLOCK|O_DIRECT) /* bits settable by fcntl(F_SETFL, ...) */ #define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FNONBLOCK|FPOSIXSHM|O_DIRECT) #endif /* * The O_* flags used to have only F* names, which were used in the kernel * and by fcntl. We retain the F* names for the kernel f_flag field * and for backward compatibility for fcntl. These flags are deprecated. */ #if __BSD_VISIBLE #define FAPPEND O_APPEND /* kernel/compat */ #if 0 /* bird: not implemented - start */ #define FASYNC O_ASYNC /* kernel/compat */ #endif /* bird: not implemented - end */ #define FFSYNC O_FSYNC /* kernel */ #define FNONBLOCK O_NONBLOCK /* kernel */ #define FNDELAY O_NONBLOCK /* compat */ #define O_NDELAY O_NONBLOCK /* compat */ #endif #if 0 /* bird: not implemented - start */ /* * We are out of bits in f_flag (which is a short). However, * the flag bits not set in FMASK are only meaningful in the * initial open syscall. Those bits can thus be given a * different meaning for fcntl(2). */ #if __BSD_VISIBLE /* * Set by shm_open(3) to get automatic MAP_ASYNC behavior * for POSIX shared memory objects (which are otherwise * implemented as plain files). */ #define FPOSIXSHM O_NOFOLLOW #endif #endif /* bird: not implemented - end */ /* * Constants used for fcntl(2) */ /* command values */ /* bird: EMX used 5 for F_DUPFD. */ #define F_DUPFD 0 /* duplicate file descriptor */ /* bird: EMX used 3 for F_GETFD. */ #define F_GETFD 1 /* get file descriptor flags */ /* bird: EMX used 4 for F_SETFD. */ #define F_SETFD 2 /* set file descriptor flags */ /* bird: EMX used 1 for F_GETFL. */ #define F_GETFL 3 /* get file status flags */ /* bird: EMX used 2 for F_SETFL. */ #define F_SETFL 4 /* set file status flags */ #if 0 /* bird: not implemented - start */ #if __BSD_VISIBLE || __XSI_VISIBLE || __POSIX_VISIBLE >= 200112 #define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */ #define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */ #endif #endif /* bird: not implemented - end */ #define F_GETLK 7 /* get record locking information */ #define F_SETLK 8 /* set record locking information */ #define F_SETLKW 9 /* F_SETLK; wait if blocked */ /* file descriptor flags (F_GETFD, F_SETFD) */ #define FD_CLOEXEC 1 /* close-on-exec flag */ /* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */ #define F_RDLCK 1 /* shared or read lock */ #define F_UNLCK 2 /* unlock */ #define F_WRLCK 3 /* exclusive or write lock */ #ifdef _KERNEL #define F_WAIT 0x010 /* Wait until lock is granted */ #define F_FLOCK 0x020 /* Use flock(2) semantics for lock */ #define F_POSIX 0x040 /* Use POSIX semantics for lock */ #endif /* * Advisory file segment locking data type - * information passed to system by user */ struct flock { off_t l_start; /* starting offset */ off_t l_len; /* len = 0 means until end of file */ pid_t l_pid; /* lock owner */ short l_type; /* lock type: read/write, etc. */ short l_whence; /* type of l_start */ }; #if __BSD_VISIBLE /* lock operations for flock(2) */ #define LOCK_SH 0x01 /* shared file lock */ #define LOCK_EX 0x02 /* exclusive file lock */ #define LOCK_NB 0x04 /* don't block when locking */ #define LOCK_UN 0x08 /* unlock file */ #endif /* * XXX missing posix_fadvise() and posix_fallocate(), and POSIX_FADV_* macros. */ #ifndef _KERNEL __BEGIN_DECLS int open(const char *, int, ...); int creat(const char *, mode_t); int fcntl(int, int, ...); #if __BSD_VISIBLE int flock(int, int); #endif __END_DECLS #endif /* bird: EMX stuff - start */ #if !defined (O_TEXT) /* Open flags. As stated in the FreeBSD part, there is supposidly a limited number of bits available. We'll try keep in suitable for 16bit just in case (don't care to check what we use right now). When we've disabled a few BSD flags and leave out KERNEL stuff the following bits are available: 0x0010, 0x0020, 0x0040, 0x0100, 0x1000, 0x4000*, 0x2000 */ #define O_TEXT 0x0010 #define O_BINARY 0x0100 #define O_SIZE 0x0020 /* EMX used 0x8000 for O_SIZE. */ #if !defined (_POSIX_SOURCE) #define O_NOINHERIT 0x1000 /* EMX used 0x1000 for O_NOINHERIT. */ #endif #endif /* fcntl command */ /* bird: EMX specifics - start */ #define F_GETOSFD 20 /* RSXNT */ /* F_GETOSFD used to be 6 */ /* bird: EMX specifics - end */ #if !defined (F_OK) /* bird: Really defined in unistd.h, but Linux and EMX does it here too. */ /* access function */ #define F_OK 0 /* test for existence of file */ #define X_OK 0x01 /* test for execute or search permission */ #define W_OK 0x02 /* test for write permission */ #define R_OK 0x04 /* test for read permission */ #endif #if !defined (_POSIX_SOURCE) || defined (_WITH_UNDERSCORE) __BEGIN_DECLS int _creat (__const__ char *, int); int _fcntl (int, int, ...); int _flock (int, int); int _open (__const__ char *, int, ...); __END_DECLS #endif /* bird: EMX stuff - end */ #endif /* !_SYS_FCNTL_H_ */