Annotation of sys/sys/syslimits.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: syslimits.h,v 1.10 2005/12/31 19:29:39 millert Exp $ */
2: /* $NetBSD: syslimits.h,v 1.12 1995/10/05 05:26:19 thorpej Exp $ */
3:
4: /*
5: * Copyright (c) 1988, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)syslimits.h 8.1 (Berkeley) 6/2/93
33: */
34:
35: #include <sys/cdefs.h>
36:
37: #if __POSIX_VISIBLE || __XPG_VISIBLE || __BSD_VISIBLE
38: #define ARG_MAX (256 * 1024) /* max bytes for an exec function */
39: #define CHILD_MAX 80 /* max simultaneous processes */
40: #define LINK_MAX 32767 /* max file link count */
41: #define MAX_CANON 255 /* max bytes in term canon input line */
42: #define MAX_INPUT 255 /* max bytes in terminal input */
43: #define NAME_MAX 255 /* max bytes in a file name */
44: #define NGROUPS_MAX 16 /* max supplemental group id's */
45: #define OPEN_MAX 64 /* max open files per process */
46: #define PATH_MAX 1024 /* max bytes in pathname */
47: #define PIPE_BUF 512 /* max bytes for atomic pipe writes */
48: #define SYMLINK_MAX PATH_MAX /* max bytes in a symbolic link */
49: #define SYMLOOP_MAX 32 /* max symlinks per path (for loops) */
50:
51: #define BC_BASE_MAX INT_MAX /* max ibase/obase values in bc(1) */
52: #define BC_DIM_MAX 65535 /* max array elements in bc(1) */
53: #define BC_SCALE_MAX INT_MAX /* max scale value in bc(1) */
54: #define BC_STRING_MAX INT_MAX /* max const string length in bc(1) */
55: #define COLL_WEIGHTS_MAX 2 /* max weights for order keyword */
56: #define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */
57: #define LINE_MAX 2048 /* max bytes in an input line */
58: #ifndef RE_DUP_MAX
59: #define RE_DUP_MAX 255 /* max RE's in interval notation */
60: #endif
61:
62: #if __XPG_VISIBLE
63: #define IOV_MAX 1024 /* max # of iov's (readv,sendmsg,etc) */
64: #define NZERO 20 /* default "nice" */
65: #endif /* __XPG_VISIBLE */
66:
67: #endif /* __POSIX_VISIBLE || __XPG_VISIBLE || __BSD_VISIBLE */
68:
69: #if __XPG_VISIBLE >= 500 || __POSIX_VISIBLE >= 199506 || __BSD_VISIBLE
70: #define TTY_NAME_MAX 260 /* max tty device name length w/ NUL */
71: #define LOGIN_NAME_MAX 32 /* max login name length w/ NUL */
72: #endif /* __XPG_VISIBLE >= 500 || __POSIX_VISIBLE >= 199506 || __BSD_VISIBLE */
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