1 /* 2 * Copyright (c) 1988 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * @(#)syslimits.h 7.2 (Berkeley) 02/16/89 18 */ 19 20 #define ARG_MAX 20480 /* max bytes for an exec function */ 21 #define CHILD_MAX 40 /* max simultaneous processes */ 22 #define LINK_MAX 32767 /* max file link count */ 23 #define MAX_CANON 255 /* max bytes in terminal canonical input line */ 24 #define MAX_INPUT 255 /* max bytes in terminal input */ 25 #define NAME_MAX 255 /* max number of bytes in a file name */ 26 #define NGROUPS_MAX 16 /* max number of supplemental group id's */ 27 #define OPEN_MAX 64 /* max open files per process */ 28 #define PATH_MAX 1024 /* max number of bytes in pathname */ 29 #define PIPE_BUF 512 /* max number of bytes for atomic pipe writes */ 30