1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 1998 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 * Copyright 2015 Joyent, Inc.  All rights reserved.
26 */
27
28/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
29/*	  All Rights Reserved  	*/
30
31/*
32 * University Copyright- Copyright (c) 1982, 1986, 1988
33 * The Regents of the University of California
34 * All Rights Reserved
35 *
36 * University Acknowledgment- Portions of this document are derived from
37 * software developed by the University of California, Berkeley, and its
38 * contributors.
39 */
40
41#ifndef _SYS_FCNTL_H
42#define	_SYS_FCNTL_H
43
44#ifndef _SYS_TYPES_H
45#include <sys/types.h>
46#endif
47
48#ifdef __cplusplus
49extern "C" {
50#endif
51
52/* Flag values accessible to open(2) and fcntl(2) */
53/*  (The first three can only be set by open) */
54#define	O_RDONLY 0
55#define	O_WRONLY 1
56#define	O_RDWR	 2
57#define	O_NDELAY 04	/* Non-blocking I/O */
58#define	O_APPEND 010	/* append (writes guaranteed at the end) */
59#define	O_SYNC	 020	/* synchronous write option */
60#define	O_NONBLOCK 0200 /* Non-blocking I/O (POSIX) */
61#define	O_PRIV 010000   /* Private access to file */
62
63#ifdef	_LARGEFILE_SOURCE
64#define	O_LARGEFILE	0x2000
65#endif
66
67/* Flag values accessible only to open(2) */
68#define	O_CREAT	00400	/* open with file create (uses third open arg) */
69#define	O_TRUNC	01000	/* open with truncation */
70#define	O_EXCL	02000	/* exclusive open */
71#define	O_NOCTTY 04000	/* don't allocate controlling tty (POSIX) */
72
73/* fcntl(2) requests */
74#define	F_DUPFD		0	/* Duplicate fildes */
75#define	F_GETFD		1	/* Get fildes flags */
76#define	F_SETFD		2	/* Set fildes flags */
77#define	F_GETFL		3	/* Get file flags */
78#define	F_SETFL		4	/* Set file flags */
79#define	F_SETLK		6	/* Set file lock */
80#define	F_SETLKW	7	/* Set file lock and wait */
81#define	F_FLOCK		53	/* private - flock */
82#define	F_FLOCKW	54	/* private - flock wait */
83
84/*
85 * Applications that read /dev/mem must be built like the kernel. A new
86 * symbol "_KMEMUSER" is defined for this purpose.
87 * Applications that read /dev/mem will migrate with the kernel
88 * to an "_LTYPES" definition.
89 */
90
91#if defined(_KERNEL) || defined(_KMEMUSER)
92#define	F_GETLK		14	/* Get file lock */
93#define	F_O_GETLK	5	/* SVR3 Get file lock */
94
95#else	/* user definition */
96
97#if defined(_LTYPES)	/* EFT definition */
98#define	F_GETLK		14	/* Get file lock */
99#else
100#define	F_GETLK		5	/* Get file lock */
101#endif	/* defined(_LTYPES) */
102
103#endif	/* defined(_KERNEL) */
104
105#define	F_SETLK		6	/* Set file lock */
106#define	F_SETLKW	7	/* Set file lock and wait */
107
108
109#define	F_CHKFL		8	/* Reserved */
110#define	F_ALLOCSP	10	/* Reserved */
111#define	F_FREESP	11	/* Free file space */
112#define	F_ISSTREAM	13	/* Is the file desc. a stream ? */
113#define	F_PRIV		15	/* Turn on private access to file */
114#define	F_NPRIV		16	/* Turn off private access to file */
115#define	F_QUOTACTL	17	/* UFS quota call */
116#define	F_BLOCKS	18	/* Get number of BLKSIZE blocks allocated */
117#define	F_BLKSIZE	19	/* Get optimal I/O block size */
118
119#define	F_GETOWN	23	/* Get owner */
120#define	F_SETOWN	24	/* Set owner */
121
122/* flags for F_GETFL, F_SETFL-- copied from <sys/file.h> */
123#ifndef FOPEN
124#define	FOPEN		0xFFFFFFFF
125#define	FREAD		0x01
126#define	FWRITE		0x02
127#define	FNDELAY		0x04
128#define	FAPPEND		0x08
129#define	FSYNC		0x10
130#define	FNONBLOCK	0x80
131
132#define	FMASK		0xFF    /* should be disjoint from FASYNC */
133
134/* open-only modes */
135
136#define	FCREAT		0x0100
137#define	FTRUNC		0x0200
138#define	FEXCL		0x0400
139#define	FNOCTTY		0x0800
140#define	FASYNC		0x1000
141
142/* file descriptor flags */
143#define	FCLOSEXEC	001	/* close on exec */
144#endif
145
146/*
147 * File segment locking set data type - information passed to system by user.
148 */
149#if defined(_KERNEL) || defined(_KMEMUSER)
150	/* EFT definition */
151typedef struct flock {
152	short	l_type;
153	short	l_whence;
154	off_t	l_start;
155	off_t	l_len;		/* len == 0 means until end of file */
156	int	l_sysid;
157	pid_t	l_pid;
158	long	pad[4];		/* reserve area */
159} flock_t;
160
161typedef struct o_flock {
162	short	l_type;
163	short	l_whence;
164	int	l_start;
165	int	l_len;		/* len == 0 means until end of file */
166	short   l_sysid;
167	o_pid_t l_pid;
168} o_flock_t;
169
170#else		/* user level definition */
171
172#if defined(_STYPES)
173	/* SVR3 definition */
174typedef struct flock {
175	short	l_type;
176	short	l_whence;
177	off_t	l_start;
178	off_t	l_len;		/* len == 0 means until end of file */
179	short	l_sysid;
180	o-pid_t	l_pid;
181} flock_t;
182
183#else
184
185typedef struct flock {
186	short	l_type;
187	short	l_whence;
188	off_t	l_start;
189	off_t	l_len;		/* len == 0 means until end of file */
190	int	l_sysid;
191	pid_t	l_pid;
192	long 	pad[4];		/* reserve area */
193} flock_t;
194
195#endif	/* define(_STYPES) */
196
197#endif	/* defined(_KERNEL) */
198
199/*
200 * File segment locking types.
201 */
202#define	F_RDLCK	01	/* Read lock */
203#define	F_WRLCK	02	/* Write lock */
204#define	F_UNLCK	03	/* Remove lock(s) */
205
206/*
207 * POSIX constants
208 */
209
210#define	O_ACCMODE	3	/* Mask for file access modes */
211#define	FD_CLOEXEC	1	/* close on exec flag */
212
213/* large file compilation environment setup */
214#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
215#ifdef __PRAGMA_REDEFINE_EXTNAME
216#pragma	redefine_extname	open	open64
217#pragma	redefine_extname	creat	creat64
218#else
219#define	open			open64
220#define	creat			creat64
221#endif
222#endif  /* !_LP64 && _FILE_OFFSET_BITS == 64 */
223
224#if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
225#ifdef __PRAGMA_REDEFINE_EXTNAME
226#pragma	redefine_extname	open64	open
227#pragma	redefine_extname	creat64	creat
228#else
229#define	open64			open
230#define	creat64			creat
231#endif
232#endif  /* _LP64 && _LARGEFILE64_SOURCE */
233
234#if defined(__STDC__)
235extern int fcntl(int, int, ...);
236extern int open(const char *, int, ...);
237extern int creat(const char *, mode_t);
238#if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
239	!defined(__PRAGMA_REDEFINE_EXTNAME))
240extern int open64(const char *, int, ...);
241extern int creat64(const char *, mode_t);
242#endif
243
244#endif
245
246#ifdef __cplusplus
247}
248#endif
249
250#endif	/* _SYS_FCNTL_H */
251