The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/syslimits.h

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    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: stable/3/sys/sys/syslimits.h 50583 1999-08-29 16:33:42Z peter $
   35  */
   36 
   37 #ifndef _SYS_SYSLIMITS_H_
   38 #define _SYS_SYSLIMITS_H_
   39 
   40 #define ARG_MAX                 65536   /* max bytes for an exec function */
   41 #ifndef CHILD_MAX
   42 #define CHILD_MAX                  40   /* max simultaneous processes */
   43 #endif
   44 #define LINK_MAX                32767   /* max file link count */
   45 #define MAX_CANON                 255   /* max bytes in term canon input line */
   46 #define MAX_INPUT                 255   /* max bytes in terminal input */
   47 #define NAME_MAX                  255   /* max bytes in a file name */
   48 #define NGROUPS_MAX                16   /* max supplemental group id's */
   49 #ifndef OPEN_MAX
   50 #define OPEN_MAX                   64   /* max open files per process */
   51 #endif
   52 #define PATH_MAX                 1024   /* max bytes in pathname */
   53 #define PIPE_BUF                  512   /* max bytes for atomic pipe writes */
   54 
   55 #define BC_BASE_MAX                99   /* max ibase/obase values in bc(1) */
   56 #define BC_DIM_MAX               2048   /* max array elements in bc(1) */
   57 #define BC_SCALE_MAX               99   /* max scale value in bc(1) */
   58 #define BC_STRING_MAX            1000   /* max const string length in bc(1) */
   59 #define COLL_WEIGHTS_MAX            0   /* max weights for order keyword */
   60 #define EXPR_NEST_MAX              32   /* max expressions nested in expr(1) */
   61 #define LINE_MAX                 2048   /* max bytes in an input line */
   62 #define RE_DUP_MAX                255   /* max RE's in interval notation */
   63 
   64 #endif

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