/* $NetBSD: syslimits.h,v 1.29 2024/12/22 23:18:29 riastradh 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 */ #ifndef _SYS_SYSLIMITS_H_ #define _SYS_SYSLIMITS_H_ #include <sys/featuretest.h> #if defined(_KERNEL_OPT) #include "opt_syslimits.h" #endif #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ defined(_NETBSD_SOURCE) #define ARG_MAX (256 * 1024) /* max bytes for an exec function */ #ifndef CHILD_MAX #define CHILD_MAX 160 /* max simultaneous processes */ #endif #define GID_MAX 2147483647U /* max value for a gid_t (2^31-2) */ #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 511 /* max bytes in a file name, must be */ /* kept in sync with MAXNAMLEN */ #define NGROUPS_MAX 16 /* max supplemental group id's */ #define UID_MAX 2147483647U /* max value for a uid_t (2^31-2) */ #ifndef OPEN_MAX #define OPEN_MAX 128 /* max open files per process */ #endif #define PATH_MAX 1024 /* max bytes in pathname */ #define PIPE_BUF 512 /* max bytes for atomic pipe writes */ #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 */ #define RE_DUP_MAX 255 /* max RE's in interval notation */ /* * POSIX Realtime Extension (1003.1b-1993) */ #if (_POSIX_C_SOURCE - 0) >= 199309L || defined(_NETBSD_SOURCE) #define DELAYTIMER_MAX 32 /* max timer_overrun() value */ #endif /* * IEEE Std 1003.1c-95, adopted in X/Open CAE Specification Issue 5 Version 2 */ #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ defined(_NETBSD_SOURCE) #define LOGIN_NAME_MAX 17 /* max login name length incl. NUL */ #endif /* * X/Open CAE Specification Issue 5 Version 2 */ #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) #define IOV_MAX 1024 /* max # of iovec's for readv(2) etc. */ #define NZERO 20 /* default "nice" */ #endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */ #endif /* !_ANSI_SOURCE */ #endif /* !_SYS_SYSLIMITS_H_ */
