1 /* 2 * Copyright (c) 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)syslimits.h 8.1 (Berkeley) 6/2/93 30 * $FreeBSD: src/sys/sys/syslimits.h,v 1.10 2001/06/18 20:24:54 wollman Exp $ 31 */ 32 33 #ifndef _SYS_SYSLIMITS_H_ 34 #define _SYS_SYSLIMITS_H_ 35 36 #include <sys/cdefs.h> 37 38 #if __POSIX_VISIBLE 39 40 /* Runtime invariant values */ 41 #define ARG_MAX 65536 /* max bytes for an exec function */ 42 #define ATEXIT_MAX 32 /* max atexit functions */ 43 #define CHILD_MAX 40 /* max simultaneous processes */ 44 #define IOV_MAX 1024 /* max elements in i/o vector */ 45 #define OPEN_MAX 64 /* max open files per process */ 46 #define TZNAME_MAX 10 /* max time zone name length */ 47 48 /* Pathname values */ 49 #define LINK_MAX 32767 /* max file link count */ 50 #define MAX_CANON 255 /* max bytes in term canon input line */ 51 #define MAX_INPUT 255 /* max bytes in terminal input */ 52 #define NAME_MAX 255 /* max bytes in a file name */ 53 #define PATH_MAX 1024 /* max bytes in pathname */ 54 #define PIPE_BUF 512 /* max bytes for atomic pipe writes */ 55 56 /* Runtime increasable values */ 57 #define COLL_WEIGHTS_MAX 0 /* max weights for order keyword */ 58 #define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */ 59 #define LINE_MAX 2048 /* max bytes in an input line */ 60 #define RE_DUP_MAX 255 /* max RE's in interval notation */ 61 62 #endif /* __POSIX_VISIBLE */ 63 64 #if __MISC_VISIBLE 65 #define NSIG_MAX __LONG_WIDTH__ /* max signal number */ 66 #endif 67 68 #endif 69
