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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
23: /*
24: * Copyright (c) 1989, 1993
25: * The Regents of the University of California. All rights reserved.
26: *
27: * Redistribution and use in source and binary forms, with or without
28: * modification, are permitted provided that the following conditions
29: * are met:
30: * 1. Redistributions of source code must retain the above copyright
31: * notice, this list of conditions and the following disclaimer.
32: * 2. Redistributions in binary form must reproduce the above copyright
33: * notice, this list of conditions and the following disclaimer in the
34: * documentation and/or other materials provided with the distribution.
35: * 3. All advertising materials mentioning features or use of this software
36: * must display the following acknowledgement:
37: * This product includes software developed by the University of
38: * California, Berkeley and its contributors.
39: * 4. Neither the name of the University nor the names of its contributors
40: * may be used to endorse or promote products derived from this software
41: * without specific prior written permission.
42: *
43: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
44: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
47: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53: * SUCH DAMAGE.
54: *
55: * @(#)unistd.h 8.2 (Berkeley) 1/7/94
56: */
57:
58: #ifndef _SYS_UNISTD_H_
59: #define _SYS_UNISTD_H_
60:
61: /* compile-time symbolic constants */
62: #define _POSIX_JOB_CONTROL /* implementation supports job control */
63:
64: /*
65: * Although we have saved user/group IDs, we do not use them in setuid
66: * as described in POSIX 1003.1, because the feature does not work for
67: * root. We use the saved IDs in seteuid/setegid, which are not currently
68: * part of the POSIX 1003.1 specification.
69: */
70: #ifdef _NOT_AVAILABLE
71: #define _POSIX_SAVED_IDS /* saved set-user-ID and set-group-ID */
72: #endif
73:
74: #define _POSIX_VERSION 198808L
75: #define _POSIX2_VERSION 199212L
76:
77: /* execution-time symbolic constants */
78: /* chown requires appropriate privileges */
79: #define _POSIX_CHOWN_RESTRICTED 1
80: /* too-long path components generate errors */
81: #define _POSIX_NO_TRUNC 1
82: /* may disable terminal special characters */
83: #ifndef _POSIX_VDISABLE
84: #define _POSIX_VDISABLE ((unsigned char)'\377')
85: #endif
86:
87: /* access function */
88: #define F_OK 0 /* test for existence of file */
89: #define X_OK 0x01 /* test for execute or search permission */
90: #define W_OK 0x02 /* test for write permission */
91: #define R_OK 0x04 /* test for read permission */
92:
93: /* whence values for lseek(2) */
94: #define SEEK_SET 0 /* set file offset to offset */
95: #define SEEK_CUR 1 /* set file offset to current plus offset */
96: #define SEEK_END 2 /* set file offset to EOF plus offset */
97:
98: #ifndef _POSIX_SOURCE
99: /* whence values for lseek(2); renamed by POSIX 1003.1 */
100: #define L_SET SEEK_SET
101: #define L_INCR SEEK_CUR
102: #define L_XTND SEEK_END
103: #endif
104:
105: /* configurable pathname variables */
106: #define _PC_LINK_MAX 1
107: #define _PC_MAX_CANON 2
108: #define _PC_MAX_INPUT 3
109: #define _PC_NAME_MAX 4
110: #define _PC_PATH_MAX 5
111: #define _PC_PIPE_BUF 6
112: #define _PC_CHOWN_RESTRICTED 7
113: #define _PC_NO_TRUNC 8
114: #define _PC_VDISABLE 9
115:
116: /* configurable system variables */
117: #define _SC_ARG_MAX 1
118: #define _SC_CHILD_MAX 2
119: #define _SC_CLK_TCK 3
120: #define _SC_NGROUPS_MAX 4
121: #define _SC_OPEN_MAX 5
122: #define _SC_JOB_CONTROL 6
123: #define _SC_SAVED_IDS 7
124: #define _SC_VERSION 8
125: #define _SC_BC_BASE_MAX 9
126: #define _SC_BC_DIM_MAX 10
127: #define _SC_BC_SCALE_MAX 11
128: #define _SC_BC_STRING_MAX 12
129: #define _SC_COLL_WEIGHTS_MAX 13
130: #define _SC_EXPR_NEST_MAX 14
131: #define _SC_LINE_MAX 15
132: #define _SC_RE_DUP_MAX 16
133: #define _SC_2_VERSION 17
134: #define _SC_2_C_BIND 18
135: #define _SC_2_C_DEV 19
136: #define _SC_2_CHAR_TERM 20
137: #define _SC_2_FORT_DEV 21
138: #define _SC_2_FORT_RUN 22
139: #define _SC_2_LOCALEDEF 23
140: #define _SC_2_SW_DEV 24
141: #define _SC_2_UPE 25
142: #define _SC_STREAM_MAX 26
143: #define _SC_TZNAME_MAX 27
144:
145: /* configurable system strings */
146: #define _CS_PATH 1
147:
148: #endif /* !_SYS_UNISTD_H_ */
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