1/*-
2 * Copyright (c) 1983, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)fcntl.h 8.3 (Berkeley) 1/21/94
| 1/*-
2 * Copyright (c) 1983, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)fcntl.h 8.3 (Berkeley) 1/21/94
|
39 * $Id$
| 39 * $Id: fcntl.h,v 1.2 1994/08/02 07:52:57 davidg Exp $
|
40 */
41
42#ifndef _SYS_FCNTL_H_
43#define _SYS_FCNTL_H_
44
45/*
46 * This file includes the definitions for open and fcntl
47 * described by POSIX for <fcntl.h>; it also includes
48 * related kernel definitions.
49 */
50
51#ifndef KERNEL
52#include <sys/types.h>
53#endif
54
55/*
56 * File status flags: these are used by open(2), fcntl(2).
57 * They are also used (indirectly) in the kernel file structure f_flags,
58 * which is a superset of the open/fcntl flags. Open flags and f_flags
59 * are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags).
60 * Open/fcntl flags begin with O_; kernel-internal flags begin with F.
61 */
62/* open-only flags */
63#define O_RDONLY 0x0000 /* open for reading only */
64#define O_WRONLY 0x0001 /* open for writing only */
65#define O_RDWR 0x0002 /* open for reading and writing */
66#define O_ACCMODE 0x0003 /* mask for above modes */
67
68/*
69 * Kernel encoding of open mode; separate read and write bits that are
70 * independently testable: 1 greater than the above.
71 *
72 * XXX
73 * FREAD and FWRITE are excluded from the #ifdef KERNEL so that TIOCFLUSH,
74 * which was documented to use FREAD/FWRITE, continues to work.
75 */
76#ifndef _POSIX_SOURCE
77#define FREAD 0x0001
78#define FWRITE 0x0002
79#endif
80#define O_NONBLOCK 0x0004 /* no delay */
81#define O_APPEND 0x0008 /* set append mode */
82#ifndef _POSIX_SOURCE
83#define O_SHLOCK 0x0010 /* open with shared file lock */
84#define O_EXLOCK 0x0020 /* open with exclusive file lock */
85#define O_ASYNC 0x0040 /* signal pgrp when data ready */
86#define O_FSYNC 0x0080 /* synchronous writes */
87#endif
| 40 */
41
42#ifndef _SYS_FCNTL_H_
43#define _SYS_FCNTL_H_
44
45/*
46 * This file includes the definitions for open and fcntl
47 * described by POSIX for <fcntl.h>; it also includes
48 * related kernel definitions.
49 */
50
51#ifndef KERNEL
52#include <sys/types.h>
53#endif
54
55/*
56 * File status flags: these are used by open(2), fcntl(2).
57 * They are also used (indirectly) in the kernel file structure f_flags,
58 * which is a superset of the open/fcntl flags. Open flags and f_flags
59 * are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags).
60 * Open/fcntl flags begin with O_; kernel-internal flags begin with F.
61 */
62/* open-only flags */
63#define O_RDONLY 0x0000 /* open for reading only */
64#define O_WRONLY 0x0001 /* open for writing only */
65#define O_RDWR 0x0002 /* open for reading and writing */
66#define O_ACCMODE 0x0003 /* mask for above modes */
67
68/*
69 * Kernel encoding of open mode; separate read and write bits that are
70 * independently testable: 1 greater than the above.
71 *
72 * XXX
73 * FREAD and FWRITE are excluded from the #ifdef KERNEL so that TIOCFLUSH,
74 * which was documented to use FREAD/FWRITE, continues to work.
75 */
76#ifndef _POSIX_SOURCE
77#define FREAD 0x0001
78#define FWRITE 0x0002
79#endif
80#define O_NONBLOCK 0x0004 /* no delay */
81#define O_APPEND 0x0008 /* set append mode */
82#ifndef _POSIX_SOURCE
83#define O_SHLOCK 0x0010 /* open with shared file lock */
84#define O_EXLOCK 0x0020 /* open with exclusive file lock */
85#define O_ASYNC 0x0040 /* signal pgrp when data ready */
86#define O_FSYNC 0x0080 /* synchronous writes */
87#endif
|
88#define O_CREAT 0x0200 /* create if nonexistant */
| 88#define O_CREAT 0x0200 /* create if nonexistent */
|
89#define O_TRUNC 0x0400 /* truncate to zero length */
90#define O_EXCL 0x0800 /* error if already exists */
91#ifdef KERNEL
92#define FMARK 0x1000 /* mark during gc() */
93#define FDEFER 0x2000 /* defer for next gc pass */
94#define FHASLOCK 0x4000 /* descriptor holds advisory lock */
95#endif
96
97/* defined by POSIX 1003.1; BSD default, so no bit required */
98#define O_NOCTTY 0 /* don't assign controlling terminal */
99
100#ifdef KERNEL
101/* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */
102#define FFLAGS(oflags) ((oflags) + 1)
103#define OFLAGS(fflags) ((fflags) - 1)
104
105/* bits to save after open */
106#define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FNONBLOCK)
107/* bits settable by fcntl(F_SETFL, ...) */
108#define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FNONBLOCK)
109#endif
110
111/*
112 * The O_* flags used to have only F* names, which were used in the kernel
113 * and by fcntl. We retain the F* names for the kernel f_flags field
114 * and for backward compatibility for fcntl.
115 */
116#ifndef _POSIX_SOURCE
117#define FAPPEND O_APPEND /* kernel/compat */
118#define FASYNC O_ASYNC /* kernel/compat */
119#define FFSYNC O_FSYNC /* kernel */
120#define FNONBLOCK O_NONBLOCK /* kernel */
121#define FNDELAY O_NONBLOCK /* compat */
122#define O_NDELAY O_NONBLOCK /* compat */
123#endif
124
125/*
126 * Constants used for fcntl(2)
127 */
128
129/* command values */
130#define F_DUPFD 0 /* duplicate file descriptor */
131#define F_GETFD 1 /* get file descriptor flags */
132#define F_SETFD 2 /* set file descriptor flags */
133#define F_GETFL 3 /* get file status flags */
134#define F_SETFL 4 /* set file status flags */
135#ifndef _POSIX_SOURCE
136#define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */
137#define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */
138#endif
139#define F_GETLK 7 /* get record locking information */
140#define F_SETLK 8 /* set record locking information */
141#define F_SETLKW 9 /* F_SETLK; wait if blocked */
142
143/* file descriptor flags (F_GETFD, F_SETFD) */
144#define FD_CLOEXEC 1 /* close-on-exec flag */
145
146/* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */
147#define F_RDLCK 1 /* shared or read lock */
148#define F_UNLCK 2 /* unlock */
149#define F_WRLCK 3 /* exclusive or write lock */
150#ifdef KERNEL
151#define F_WAIT 0x010 /* Wait until lock is granted */
152#define F_FLOCK 0x020 /* Use flock(2) semantics for lock */
153#define F_POSIX 0x040 /* Use POSIX semantics for lock */
154#endif
155
156/*
157 * Advisory file segment locking data type -
158 * information passed to system by user
159 */
160struct flock {
161 off_t l_start; /* starting offset */
162 off_t l_len; /* len = 0 means until end of file */
163 pid_t l_pid; /* lock owner */
164 short l_type; /* lock type: read/write, etc. */
165 short l_whence; /* type of l_start */
166};
167
168
169#ifndef _POSIX_SOURCE
170/* lock operations for flock(2) */
171#define LOCK_SH 0x01 /* shared file lock */
172#define LOCK_EX 0x02 /* exclusive file lock */
173#define LOCK_NB 0x04 /* don't block when locking */
174#define LOCK_UN 0x08 /* unlock file */
175#endif
176
177
178#ifndef KERNEL
179#include <sys/cdefs.h>
180
181__BEGIN_DECLS
182int open __P((const char *, int, ...));
183int creat __P((const char *, mode_t));
184int fcntl __P((int, int, ...));
185#ifndef _POSIX_SOURCE
186int flock __P((int, int));
187#endif /* !_POSIX_SOURCE */
188__END_DECLS
189#endif
190
191#endif /* !_SYS_FCNTL_H_ */
| 89#define O_TRUNC 0x0400 /* truncate to zero length */
90#define O_EXCL 0x0800 /* error if already exists */
91#ifdef KERNEL
92#define FMARK 0x1000 /* mark during gc() */
93#define FDEFER 0x2000 /* defer for next gc pass */
94#define FHASLOCK 0x4000 /* descriptor holds advisory lock */
95#endif
96
97/* defined by POSIX 1003.1; BSD default, so no bit required */
98#define O_NOCTTY 0 /* don't assign controlling terminal */
99
100#ifdef KERNEL
101/* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */
102#define FFLAGS(oflags) ((oflags) + 1)
103#define OFLAGS(fflags) ((fflags) - 1)
104
105/* bits to save after open */
106#define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FNONBLOCK)
107/* bits settable by fcntl(F_SETFL, ...) */
108#define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FNONBLOCK)
109#endif
110
111/*
112 * The O_* flags used to have only F* names, which were used in the kernel
113 * and by fcntl. We retain the F* names for the kernel f_flags field
114 * and for backward compatibility for fcntl.
115 */
116#ifndef _POSIX_SOURCE
117#define FAPPEND O_APPEND /* kernel/compat */
118#define FASYNC O_ASYNC /* kernel/compat */
119#define FFSYNC O_FSYNC /* kernel */
120#define FNONBLOCK O_NONBLOCK /* kernel */
121#define FNDELAY O_NONBLOCK /* compat */
122#define O_NDELAY O_NONBLOCK /* compat */
123#endif
124
125/*
126 * Constants used for fcntl(2)
127 */
128
129/* command values */
130#define F_DUPFD 0 /* duplicate file descriptor */
131#define F_GETFD 1 /* get file descriptor flags */
132#define F_SETFD 2 /* set file descriptor flags */
133#define F_GETFL 3 /* get file status flags */
134#define F_SETFL 4 /* set file status flags */
135#ifndef _POSIX_SOURCE
136#define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */
137#define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */
138#endif
139#define F_GETLK 7 /* get record locking information */
140#define F_SETLK 8 /* set record locking information */
141#define F_SETLKW 9 /* F_SETLK; wait if blocked */
142
143/* file descriptor flags (F_GETFD, F_SETFD) */
144#define FD_CLOEXEC 1 /* close-on-exec flag */
145
146/* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */
147#define F_RDLCK 1 /* shared or read lock */
148#define F_UNLCK 2 /* unlock */
149#define F_WRLCK 3 /* exclusive or write lock */
150#ifdef KERNEL
151#define F_WAIT 0x010 /* Wait until lock is granted */
152#define F_FLOCK 0x020 /* Use flock(2) semantics for lock */
153#define F_POSIX 0x040 /* Use POSIX semantics for lock */
154#endif
155
156/*
157 * Advisory file segment locking data type -
158 * information passed to system by user
159 */
160struct flock {
161 off_t l_start; /* starting offset */
162 off_t l_len; /* len = 0 means until end of file */
163 pid_t l_pid; /* lock owner */
164 short l_type; /* lock type: read/write, etc. */
165 short l_whence; /* type of l_start */
166};
167
168
169#ifndef _POSIX_SOURCE
170/* lock operations for flock(2) */
171#define LOCK_SH 0x01 /* shared file lock */
172#define LOCK_EX 0x02 /* exclusive file lock */
173#define LOCK_NB 0x04 /* don't block when locking */
174#define LOCK_UN 0x08 /* unlock file */
175#endif
176
177
178#ifndef KERNEL
179#include <sys/cdefs.h>
180
181__BEGIN_DECLS
182int open __P((const char *, int, ...));
183int creat __P((const char *, mode_t));
184int fcntl __P((int, int, ...));
185#ifndef _POSIX_SOURCE
186int flock __P((int, int));
187#endif /* !_POSIX_SOURCE */
188__END_DECLS
189#endif
190
191#endif /* !_SYS_FCNTL_H_ */
|