/* $OpenBSD: syslimits.h,v 1.16 2024/08/02 01:53:21 guenther Exp $ */ /* $NetBSD: syslimits.h,v 1.12 1995/10/05 05:26:19 thorpej Exp $ */ /* * Copyright (c) 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)syslimits.h 8.1 (Berkeley) 6/2/93 */ #include <sys/cdefs.h> #if __POSIX_VISIBLE || __XPG_VISIBLE || __BSD_VISIBLE #define ARG_MAX (512 * 1024) /* max bytes for an exec function */ #define CHILD_MAX 80 /* max simultaneous processes */ #define LINK_MAX 32767 /* max file link count */ #define MAX_CANON 255 /* max bytes in term canon input line */ #define MAX_INPUT 255 /* max bytes in terminal input */ #define NAME_MAX 255 /* max bytes in a file name */ #define NGROUPS_MAX 16 /* max supplemental group id's */ #define OPEN_MAX 64 /* max open files per process */ #define PATH_MAX 1024 /* max bytes in pathname */ #define PIPE_BUF 512 /* max bytes for atomic pipe writes */ #define SYMLINK_MAX PATH_MAX /* max bytes in a symbolic link */ #define SYMLOOP_MAX 32 /* max symlinks per path (for loops) */ #define BC_BASE_MAX INT_MAX /* max ibase/obase values in bc(1) */ #define BC_DIM_MAX 65535 /* max array elements in bc(1) */ #define BC_SCALE_MAX INT_MAX /* max scale value in bc(1) */ #define BC_STRING_MAX INT_MAX /* max const string length in bc(1) */ #define COLL_WEIGHTS_MAX 2 /* max weights for order keyword */ #define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */ #define LINE_MAX 2048 /* max bytes in an input line */ #ifndef RE_DUP_MAX #define RE_DUP_MAX 255 /* max RE's in interval notation */ #define SEM_VALUE_MAX UINT_MAX /* max value of a sem_* semaphore */ #endif #if __XPG_VISIBLE #define IOV_MAX 1024 /* max # of iov's (readv,sendmsg,etc) */ #define NZERO 20 /* default "nice" */ #endif /* __XPG_VISIBLE */ #endif /* __POSIX_VISIBLE || __XPG_VISIBLE || __BSD_VISIBLE */ #if __XPG_VISIBLE >= 500 || __POSIX_VISIBLE >= 199506 || __BSD_VISIBLE #define TTY_NAME_MAX 260 /* max tty device name length w/ NUL */ #define LOGIN_NAME_MAX 32 /* max login name length w/ NUL */ #endif /* __XPG_VISIBLE >= 500 || __POSIX_VISIBLE >= 199506 || __BSD_VISIBLE */ #if __POSIX_VISIBLE >= 200112 #define HOST_NAME_MAX 255 /* max hostname length w/o NUL */ #endif #if __POSIX_VISIBLE >= 202405 #define GETENTROPY_MAX 256 /* max bytes from getentropy(2) */ #endif #define _MAXCOMLEN 24 /* includes NUL */
