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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * Copyright (c) 1983 Regents of the University of California.
29 * All rights reserved. The Berkeley software License Agreement
30 * specifies the terms and conditions for redistribution.
31 */
32
33 #ifndef __SYS_FCNTLCOM_H
34 #define __SYS_FCNTLCOM_H
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 /*
41 * Rewack the FXXXXX values as _FXXXX so that _POSIX_SOURCE works.
42 */
43 #define _FOPEN (-1) /* from sys/file.h, kernel use only */
44 #define _FREAD 0x0001 /* read enabled */
45 #define _FWRITE 0x0002 /* write enabled */
46 #define _FNDELAY 0x0004 /* non blocking I/O (4.2 style) */
47 #define _FAPPEND 0x0008 /* append (writes guaranteed at the end) */
48 #define _FMARK 0x0010 /* internal; mark during gc() */
49 #define _FDEFER 0x0020 /* internal; defer for next gc pass */
50 #define _FASYNC 0x0040 /* signal pgrp when data ready */
51 #define _FSHLOCK 0x0080 /* BSD flock() shared lock present */
52 #define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */
53 #define _FCREAT 0x0200 /* open with file create */
54 #define _FTRUNC 0x0400 /* open with truncation */
55 #define _FEXCL 0x0800 /* error on open if file exists */
56 #define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */
57 #define _FSYNC 0x2000 /* do all writes synchronously */
58 #define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */
59 #define _FNOCTTY 0x8000 /* don't assign a ctty on this open */
60
61 #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
62
63 /*
64 * Flag values for open(2) and fcntl(2)
65 * The kernel adds 1 to the open modes to turn it into some
66 * combination of FREAD and FWRITE.
67 */
68 #define O_RDONLY 0 /* +1 == FREAD */
69 #define O_WRONLY 1 /* +1 == FWRITE */
70 #define O_RDWR 2 /* +1 == FREAD|FWRITE */
71 #define O_APPEND _FAPPEND
72 #define O_CREAT _FCREAT
73 #define O_TRUNC _FTRUNC
74 #define O_EXCL _FEXCL
75 /* O_SYNC _FSYNC not posix, defined below */
76 /* O_NDELAY _FNDELAY set in include/fcntl.h */
77 /* O_NDELAY _FNBIO set in 5include/fcntl.h */
78 #define O_NONBLOCK _FNONBLOCK
79 #define O_NOCTTY _FNOCTTY
80
81 #ifndef _POSIX_SOURCE
82
83 #define O_SYNC _FSYNC
84
85 /*
86 * Flags that work for fcntl(fd, F_SETFL, FXXXX)
87 */
88 #define FAPPEND _FAPPEND
89 #define FSYNC _FSYNC
90 #define FASYNC _FASYNC
91 #define FNBIO _FNBIO
92 #define FNONBIO _FNONBLOCK /* XXX fix to be NONBLOCK everywhere */
93 #define FNDELAY _FNDELAY
94
95 /*
96 * Flags that are disallowed for fcntl's (FCNTLCANT);
97 * used for opens, internal state, or locking.
98 */
99 #define FREAD _FREAD
100 #define FWRITE _FWRITE
101 #define FMARK _FMARK
102 #define FDEFER _FDEFER
103 #define FSHLOCK _FSHLOCK
104 #define FEXLOCK _FEXLOCK
105
106 /*
107 * The rest of the flags, used only for opens
108 */
109 #define FOPEN _FOPEN
110 #define FCREAT _FCREAT
111 #define FTRUNC _FTRUNC
112 #define FEXCL _FEXCL
113 #define FNOCTTY _FNOCTTY
114
115 #endif /* !_POSIX_SOURCE */
116
117 /* XXX close on exec request; must match UF_EXCLOSE in user.h */
118 #define FD_CLOEXEC 1 /* posix */
119
120 /* fcntl(2) requests */
121 #define F_DUPFD 0 /* Duplicate fildes */
122 #define F_GETFD 1 /* Get fildes flags (close on exec) */
123 #define F_SETFD 2 /* Set fildes flags (close on exec) */
124 #define F_GETFL 3 /* Get file flags */
125 #define F_SETFL 4 /* Set file flags */
126 #ifndef _POSIX_SOURCE
127 #define F_GETOWN 5 /* Get owner - for ASYNC */
128 #define F_SETOWN 6 /* Set owner - for ASYNC */
129 #endif /* !_POSIX_SOURCE */
130 #define F_GETLK 7 /* Get record-locking information */
131 #define F_SETLK 8 /* Set or Clear a record-lock (Non-Blocking) */
132 #define F_SETLKW 9 /* Set or Clear a record-lock (Blocking) */
133 #ifndef _POSIX_SOURCE
134 #define F_CNVT 12 /* Convert a fhandle to an open fd */
135 #endif /* !_POSIX_SOURCE */
136
137 /* fcntl(2) flags (l_type field of flock structure) */
138 #define F_RDLCK 1 /* read lock */
139 #define F_WRLCK 2 /* write lock */
140 #define F_UNLCK 3 /* remove lock(s) */
141 #ifndef _POSIX_SOURCE
142 #define F_UNLKSYS 4 /* remove remote locks for a given system */
143 #endif /* !_POSIX_SOURCE */
144
145 /* needed for _syscall(SYS_openat, AT_FDCWD, ...) */
146 #define AT_FDCWD 0xffd19553
147 #define AT_SYMLINK_NOFOLLOW 0x1000
148 #define AT_REMOVEDIR 0x1
149
150 #include <sys/stdtypes.h>
151
152 /* file segment locking set data type - information passed to system by user */
153 struct flock {
154 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
155 short l_whence; /* flag to choose starting offset */
156 long l_start; /* relative offset, in bytes */
157 long l_len; /* length, in bytes; 0 means lock to EOF */
158 short l_pid; /* returned with F_GETLK */
159 short l_xxx; /* reserved for future use */
160 };
161
162 #ifndef _POSIX_SOURCE
163 /* extended file segment locking set data type */
164 struct eflock {
165 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
166 short l_whence; /* flag to choose starting offset */
167 long l_start; /* relative offset, in bytes */
168 long l_len; /* length, in bytes; 0 means lock to EOF */
169 short l_pid; /* returned with F_GETLK */
170 short l_xxx; /* reserved for future use */
171 long l_rpid; /* Remote process id wanting this lock */
172 long l_rsys; /* Remote system id wanting this lock */
173 };
174 #endif /* !_POSIX_SOURCE */
175
176 #ifndef KERNEL
177 #include <sys/stat.h> /* sigh. for the mode bits for open/creat */
178
179 int open(/* char *path, int flags, mode_t modes */);
180 int creat(/* char *path, mode_t modes */);
181 int fcntl(/* int fd, cmd, ... */);
182 #endif /* !KERNEL */
183
184 #ifdef __cplusplus
185 }
186 #endif
187
188 #endif /* __SYS_FCNTLCOM_H */