master
1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* $NetBSD: syslimits.h,v 1.15 1997/06/25 00:48:09 lukem Exp $ */
29
30/*
31 * Copyright (c) 1988, 1993
32 * The Regents of the University of California. All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 * must display the following acknowledgement:
44 * This product includes software developed by the University of
45 * California, Berkeley and its contributors.
46 * 4. Neither the name of the University nor the names of its contributors
47 * may be used to endorse or promote products derived from this software
48 * without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
61 *
62 * @(#)syslimits.h 8.1 (Berkeley) 6/2/93
63 */
64
65#ifndef _SYS_SYSLIMITS_H_
66#define _SYS_SYSLIMITS_H_
67
68#include <sys/cdefs.h>
69
70#if !defined(_ANSI_SOURCE)
71
72/* max bytes for an exec function */
73#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
74#define ARG_MAX (1024 * 1024)
75#else
76#define ARG_MAX (256 * 1024)
77#endif
78
79/*
80 * Note: CHILD_MAX *must* be less than hard_maxproc, which is set at
81 * compile time; you *cannot* set it higher than the hard limit!!
82 */
83
84#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
85#define CHILD_MAX 266 /* max simultaneous processes */
86#define GID_MAX 2147483647U /* max value for a gid_t (2^31-2) */
87#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
88#define LINK_MAX 32767 /* max file link count */
89#define MAX_CANON 1024 /* max bytes in term canon input line */
90#define MAX_INPUT 1024 /* max bytes in terminal input */
91/*
92 * NOTE: Many filesystems (including HFS & APFS) may support names longer than `NAME_MAX` bytes.
93 * See manpage for `getdirentries` and `readdir` for details.
94 */
95#define NAME_MAX 255 /* max bytes in a file name */
96#define NGROUPS_MAX 16 /* max supplemental group id's */
97#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
98#define UID_MAX 2147483647U /* max value for a uid_t (2^31-2) */
99
100#define OPEN_MAX 10240 /* max open files per process - todo, make a config option? */
101
102#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
103#define PATH_MAX 1024 /* max bytes in pathname */
104#define PIPE_BUF 512 /* max bytes for atomic pipe writes */
105
106#define BC_BASE_MAX 99 /* max ibase/obase values in bc(1) */
107#define BC_DIM_MAX 2048 /* max array elements in bc(1) */
108#define BC_SCALE_MAX 99 /* max scale value in bc(1) */
109#define BC_STRING_MAX 1000 /* max const string length in bc(1) */
110#define CHARCLASS_NAME_MAX 14 /* max character class name size */
111#define COLL_WEIGHTS_MAX 2 /* max weights for order keyword */
112#define EQUIV_CLASS_MAX 2
113#define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */
114#define LINE_MAX 2048 /* max bytes in an input line */
115#define RE_DUP_MAX 255 /* max RE's in interval notation */
116
117#if __DARWIN_UNIX03
118#define NZERO 20 /* default priority [XSI] */
119 /* = ((PRIO_MAX - PRIO_MIN) / 2) + 1 */
120 /* range: 0 - 39 [(2 * NZERO) - 1] */
121 /* 0 is not actually used */
122#else /* !__DARWIN_UNIX03 */
123#define NZERO 0 /* default priority */
124 /* range: -20 - 20 */
125 /* (PRIO_MIN - PRIO_MAX) */
126#endif /* __DARWIN_UNIX03 */
127
128
129#endif /* !_ANSI_SOURCE */
130
131#endif /* !_SYS_SYSLIMITS_H_ */