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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)syslimits.h 8.1 (Berkeley) 6/2/93 34 * $FreeBSD: src/sys/sys/syslimits.h,v 1.9 1999/08/28 00:52:03 peter Exp $ 35 * $DragonFly: src/sys/sys/syslimits.h,v 1.3 2004/11/09 17:52:45 joerg Exp $ 36 */ 37 38 #ifndef _SYS_SYSLIMITS_H_ 39 #define _SYS_SYSLIMITS_H_ 40 41 #define ARG_MAX 65536 /* max bytes for an exec function */ 42 #ifndef CHILD_MAX 43 #define CHILD_MAX 40 /* max simultaneous processes */ 44 #endif 45 #define LINK_MAX 32767 /* max file link count */ 46 #define MAX_CANON 255 /* max bytes in term canon input line */ 47 #define MAX_INPUT 255 /* max bytes in terminal input */ 48 #define NAME_MAX 255 /* max bytes in a file name */ 49 #define NGROUPS_MAX 16 /* max supplemental group id's */ 50 #ifndef OPEN_MAX 51 #define OPEN_MAX 64 /* max open files per process */ 52 #endif 53 #define PATH_MAX 1024 /* max bytes in pathname */ 54 #define PIPE_BUF 512 /* max bytes for atomic pipe writes */ 55 #define IOV_MAX 1024 /* max elements in i/o vector */ 56 57 #define BC_BASE_MAX 99 /* max ibase/obase values in bc(1) */ 58 #define BC_DIM_MAX 2048 /* max array elements in bc(1) */ 59 #define BC_SCALE_MAX 99 /* max scale value in bc(1) */ 60 #define BC_STRING_MAX 1000 /* max const string length in bc(1) */ 61 #define COLL_WEIGHTS_MAX 0 /* max weights for order keyword */ 62 #define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */ 63 #define LINE_MAX 2048 /* max bytes in an input line */ 64 #define RE_DUP_MAX 255 /* max RE's in interval notation */ 65 66 #endif 67