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 2016 Gary Mills
24 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
25 * Use is subject to license terms.
26 */
27
28 /*
29 * Copyright (c) 1983 Regents of the University of California.
30 * All rights reserved. The Berkeley software License Agreement
31 * specifies the terms and conditions for redistribution.
32 */
33
34 #ifndef __SYS_FCNTLCOM_H
35 #define __SYS_FCNTLCOM_H
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 /*
42 * Rewack the FXXXXX values as _FXXXX so that _POSIX_SOURCE works.
43 */
44 #define _FOPEN (-1) /* from sys/file.h, kernel use only */
45 #define _FREAD 0x0001 /* read enabled */
46 #define _FWRITE 0x0002 /* write enabled */
47 #define _FNDELAY 0x0004 /* non blocking I/O (4.2 style) */
48 #define _FAPPEND 0x0008 /* append (writes guaranteed at the end) */
49 #define _FMARK 0x0010 /* internal; mark during gc() */
50 #define _FDEFER 0x0020 /* internal; defer for next gc pass */
51 #define _FASYNC 0x0040 /* signal pgrp when data ready */
52 #define _FSHLOCK 0x0080 /* BSD flock() shared lock present */
53 #define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */
54 #define _FCREAT 0x0200 /* open with file create */
55 #define _FTRUNC 0x0400 /* open with truncation */
56 #define _FEXCL 0x0800 /* error on open if file exists */
57 #define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */
58 #define _FSYNC 0x2000 /* do all writes synchronously */
59 #define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */
60 #define _FNOCTTY 0x8000 /* don't assign a ctty on this open */
61
62 #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
63
64 /*
65 * Flag values for open(2) and fcntl(2)
66 * The kernel adds 1 to the open modes to turn it into some
67 * combination of FREAD and FWRITE.
68 */
69 #define O_RDONLY 0 /* +1 == FREAD */
70 #define O_WRONLY 1 /* +1 == FWRITE */
71 #define O_RDWR 2 /* +1 == FREAD|FWRITE */
72 #define O_APPEND _FAPPEND
73 #define O_CREAT _FCREAT
74 #define O_TRUNC _FTRUNC
75 #define O_EXCL _FEXCL
76 /* O_SYNC _FSYNC not posix, defined below */
77 /* O_NDELAY _FNDELAY set in include/fcntl.h */
78 /* O_NDELAY _FNBIO set in 5include/fcntl.h */
79 #define O_NONBLOCK _FNONBLOCK
80 #define O_NOCTTY _FNOCTTY
81
82 #ifndef _POSIX_SOURCE
83
84 #define O_SYNC _FSYNC
85
86 /*
87 * Flags that work for fcntl(fd, F_SETFL, FXXXX)
88 */
89 #define FAPPEND _FAPPEND
90 #define FSYNC _FSYNC
91 #define FASYNC _FASYNC
92 #define FNBIO _FNBIO
93 #define FNONBIO _FNONBLOCK /* XXX fix to be NONBLOCK everywhere */
94 #define FNDELAY _FNDELAY
95
96 /*
97 * Flags that are disallowed for fcntl's (FCNTLCANT);
98 * used for opens, internal state, or locking.
99 */
100 #define FREAD _FREAD
101 #define FWRITE _FWRITE
102 #define FMARK _FMARK
103 #define FDEFER _FDEFER
104 #define FSHLOCK _FSHLOCK
105 #define FEXLOCK _FEXLOCK
106
107 /*
108 * The rest of the flags, used only for opens
109 */
110 #define FOPEN _FOPEN
111 #define FCREAT _FCREAT
112 #define FTRUNC _FTRUNC
113 #define FEXCL _FEXCL
114 #define FNOCTTY _FNOCTTY
115
116 #endif /* !_POSIX_SOURCE */
117
118 /* XXX close on exec request; must match UF_EXCLOSE in user.h */
119 #define FD_CLOEXEC 1 /* posix */
120
121 /* fcntl(2) requests */
122 #define F_DUPFD 0 /* Duplicate fildes */
123 #define F_GETFD 1 /* Get fildes flags (close on exec) */
124 #define F_SETFD 2 /* Set fildes flags (close on exec) */
125 #define F_GETFL 3 /* Get file flags */
126 #define F_SETFL 4 /* Set file flags */
127 #ifndef _POSIX_SOURCE
128 #define F_GETOWN 5 /* Get owner - for ASYNC */
129 #define F_SETOWN 6 /* Set owner - for ASYNC */
130 #endif /* !_POSIX_SOURCE */
131 #define F_GETLK 7 /* Get record-locking information */
132 #define F_SETLK 8 /* Set or Clear a record-lock (Non-Blocking) */
133 #define F_SETLKW 9 /* Set or Clear a record-lock (Blocking) */
134 #ifndef _POSIX_SOURCE
135 #define F_CNVT 12 /* Convert a fhandle to an open fd */
136 #endif /* !_POSIX_SOURCE */
137
138 /* Needed by flock.c */
139 #define F_FLOCKW F_SETLKW
140 #define F_FLOCK F_SETLK
141
142 /* fcntl(2) flags (l_type field of flock structure) */
143 #define F_RDLCK 1 /* read lock */
144 #define F_WRLCK 2 /* write lock */
145 #define F_UNLCK 3 /* remove lock(s) */
146 #ifndef _POSIX_SOURCE
147 #define F_UNLKSYS 4 /* remove remote locks for a given system */
148 #endif /* !_POSIX_SOURCE */
149
150 /* needed for _syscall(SYS_openat, AT_FDCWD, ...) */
151 #define AT_FDCWD 0xffd19553
152 #define AT_SYMLINK_NOFOLLOW 0x1000
153 #define AT_REMOVEDIR 0x1
154
155 #include <sys/stdtypes.h>
156
157 /* file segment locking set data type - information passed to system by user */
158 struct flock {
159 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
160 short l_whence; /* flag to choose starting offset */
161 long l_start; /* relative offset, in bytes */
162 long l_len; /* length, in bytes; 0 means lock to EOF */
163 short l_pid; /* returned with F_GETLK */
164 short l_xxx; /* reserved for future use */
165 };
166
167 #ifndef _POSIX_SOURCE
168 /* extended file segment locking set data type */
169 struct eflock {
170 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
171 short l_whence; /* flag to choose starting offset */
172 long l_start; /* relative offset, in bytes */
173 long l_len; /* length, in bytes; 0 means lock to EOF */
174 short l_pid; /* returned with F_GETLK */
175 short l_xxx; /* reserved for future use */
176 long l_rpid; /* Remote process id wanting this lock */
177 long l_rsys; /* Remote system id wanting this lock */
178 };
179 #endif /* !_POSIX_SOURCE */
180
181 #ifndef KERNEL
182 #include <sys/stat.h> /* sigh. for the mode bits for open/creat */
183
184 int open(/* char *path, int flags, mode_t modes */);
185 int creat(/* char *path, mode_t modes */);
186 int fcntl(/* int fd, cmd, ... */);
187 #endif /* !KERNEL */
188
189 #ifdef __cplusplus
190 }
191 #endif
192
193 #endif /* __SYS_FCNTLCOM_H */