xref: /illumos-gate/usr/src/boot/sys/sys/syslimits.h (revision 199767f8)
1*199767f8SToomas Soome /*-
2*199767f8SToomas Soome  * Copyright (c) 1988, 1993
3*199767f8SToomas Soome  *	The Regents of the University of California.  All rights reserved.
4*199767f8SToomas Soome  *
5*199767f8SToomas Soome  * Redistribution and use in source and binary forms, with or without
6*199767f8SToomas Soome  * modification, are permitted provided that the following conditions
7*199767f8SToomas Soome  * are met:
8*199767f8SToomas Soome  * 1. Redistributions of source code must retain the above copyright
9*199767f8SToomas Soome  *    notice, this list of conditions and the following disclaimer.
10*199767f8SToomas Soome  * 2. Redistributions in binary form must reproduce the above copyright
11*199767f8SToomas Soome  *    notice, this list of conditions and the following disclaimer in the
12*199767f8SToomas Soome  *    documentation and/or other materials provided with the distribution.
13*199767f8SToomas Soome  * 4. Neither the name of the University nor the names of its contributors
14*199767f8SToomas Soome  *    may be used to endorse or promote products derived from this software
15*199767f8SToomas Soome  *    without specific prior written permission.
16*199767f8SToomas Soome  *
17*199767f8SToomas Soome  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18*199767f8SToomas Soome  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19*199767f8SToomas Soome  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20*199767f8SToomas Soome  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21*199767f8SToomas Soome  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22*199767f8SToomas Soome  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23*199767f8SToomas Soome  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24*199767f8SToomas Soome  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25*199767f8SToomas Soome  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26*199767f8SToomas Soome  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27*199767f8SToomas Soome  * SUCH DAMAGE.
28*199767f8SToomas Soome  *
29*199767f8SToomas Soome  *	@(#)syslimits.h	8.1 (Berkeley) 6/2/93
30*199767f8SToomas Soome  * $FreeBSD$
31*199767f8SToomas Soome  */
32*199767f8SToomas Soome 
33*199767f8SToomas Soome #ifndef _SYS_SYSLIMITS_H_
34*199767f8SToomas Soome #define _SYS_SYSLIMITS_H_
35*199767f8SToomas Soome 
36*199767f8SToomas Soome #if !defined(_KERNEL) && !defined(_LIMITS_H_) && !defined(_SYS_PARAM_H_)
37*199767f8SToomas Soome #ifndef _SYS_CDEFS_H_
38*199767f8SToomas Soome #error this file needs sys/cdefs.h as a prerequisite
39*199767f8SToomas Soome #endif
40*199767f8SToomas Soome #ifdef __CC_SUPPORTS_WARNING
41*199767f8SToomas Soome #warning "No user-serviceable parts inside."
42*199767f8SToomas Soome #endif
43*199767f8SToomas Soome #endif
44*199767f8SToomas Soome 
45*199767f8SToomas Soome /*
46*199767f8SToomas Soome  * Do not add any new variables here.  (See the comment at the end of
47*199767f8SToomas Soome  * the file for why.)
48*199767f8SToomas Soome  */
49*199767f8SToomas Soome #define	ARG_MAX			262144	/* max bytes for an exec function */
50*199767f8SToomas Soome #ifndef CHILD_MAX
51*199767f8SToomas Soome #define	CHILD_MAX		   40	/* max simultaneous processes */
52*199767f8SToomas Soome #endif
53*199767f8SToomas Soome #define	LINK_MAX		32767	/* max file link count */
54*199767f8SToomas Soome #define	MAX_CANON		  255	/* max bytes in term canon input line */
55*199767f8SToomas Soome #define	MAX_INPUT		  255	/* max bytes in terminal input */
56*199767f8SToomas Soome #define	NAME_MAX		  255	/* max bytes in a file name */
57*199767f8SToomas Soome #ifndef NGROUPS_MAX
58*199767f8SToomas Soome #define	NGROUPS_MAX	 	 1023	/* max supplemental group id's */
59*199767f8SToomas Soome #endif
60*199767f8SToomas Soome #ifndef OPEN_MAX
61*199767f8SToomas Soome #define	OPEN_MAX		   64	/* max open files per process */
62*199767f8SToomas Soome #endif
63*199767f8SToomas Soome #define	PATH_MAX		 1024	/* max bytes in pathname */
64*199767f8SToomas Soome #define	PIPE_BUF		  512	/* max bytes for atomic pipe writes */
65*199767f8SToomas Soome #define	IOV_MAX			 1024	/* max elements in i/o vector */
66*199767f8SToomas Soome 
67*199767f8SToomas Soome /*
68*199767f8SToomas Soome  * We leave the following values undefined to force applications to either
69*199767f8SToomas Soome  * assume conservative values or call sysconf() to get the current value.
70*199767f8SToomas Soome  *
71*199767f8SToomas Soome  * HOST_NAME_MAX
72*199767f8SToomas Soome  *
73*199767f8SToomas Soome  * (We should do this for most of the values currently defined here,
74*199767f8SToomas Soome  * but many programs are not prepared to deal with this yet.)
75*199767f8SToomas Soome  */
76*199767f8SToomas Soome #endif
77