limits.h revision 1.44
1 /* $NetBSD: limits.h,v 1.44 2024/08/15 23:44:49 riastradh Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)limits.h 8.2 (Berkeley) 1/4/94 32 */ 33 34 #ifndef _LIMITS_H_ 35 #define _LIMITS_H_ 36 37 #include <sys/featuretest.h> 38 39 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 40 defined(_NETBSD_SOURCE) 41 #define _POSIX_AIO_LISTIO_MAX 2 42 #define _POSIX_AIO_MAX 1 43 #define _POSIX_ARG_MAX 4096 44 #define _POSIX_CHILD_MAX 25 45 #define _POSIX_HOST_NAME_MAX 255 46 #define _POSIX_LINK_MAX 8 47 #define _POSIX_LOGIN_NAME_MAX 9 48 #define _POSIX_MAX_CANON 255 49 #define _POSIX_MAX_INPUT 255 50 #define _POSIX_MQ_OPEN_MAX 8 51 #define _POSIX_MQ_PRIO_MAX 32 52 #define _POSIX_NAME_MAX 14 53 #define _POSIX_NGROUPS_MAX 8 54 #define _POSIX_OPEN_MAX 20 55 #define _POSIX_PATH_MAX 256 56 #define _POSIX_PIPE_BUF 512 57 #define _POSIX_RE_DUP_MAX 255 58 #define _POSIX_SSIZE_MAX 32767 59 #define _POSIX_STREAM_MAX 8 60 #define _POSIX_SYMLINK_MAX 255 61 #define _POSIX_SYMLOOP_MAX 8 62 63 /* 64 * We have not implemented these yet 65 * 66 * _POSIX_THREAD_ATTR_STACKADDR 67 * _POSIX_THREAD_ATTR_STACKSIZE 68 * _POSIX_THREAD_CPUTIME 69 * _POSIX_THREAD_PRIORITY_SCHEDULING 70 * _POSIX_THREAD_PRIO_INHERIT 71 * _POSIX_THREAD_PRIO_PROTECT 72 * _POSIX_THREAD_PROCESS_SHARED 73 * _POSIX_THREAD_SAFE_FUNCTIONS 74 * _POSIX_THREAD_SPORADIC_SERVER 75 */ 76 77 /* 78 * The following 3 are defined in 79 * Open Group Base Specifications Issue 7 80 */ 81 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 82 #define _POSIX_THREAD_KEYS_MAX 128 83 #define _POSIX_THREAD_THREADS_MAX 64 84 85 /* 86 * These are the correct names, defined in terms of the above 87 * except for PTHREAD_KEYS_MAX which is bigger than standard 88 * mandated minimum value _POSIX_THREAD_KEYS_MAX. 89 */ 90 #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS 91 #define PTHREAD_KEYS_MAX 256 92 /* Not yet: PTHREAD_STACK_MIN */ 93 #define PTHREAD_THREADS_MAX _POSIX_THREAD_THREADS_MAX 94 95 #define _POSIX_TIMER_MAX 32 96 #define _POSIX_SEM_NSEMS_MAX 256 97 #define _POSIX_SIGQUEUE_MAX 32 98 #define _POSIX_REALTIME_SIGNALS 200112L 99 #define _POSIX_DELAYTIMER_MAX 32 100 #define _POSIX_TTY_NAME_MAX 9 101 #define _POSIX_TZNAME_MAX 6 102 103 #define _POSIX2_BC_BASE_MAX 99 104 #define _POSIX2_BC_DIM_MAX 2048 105 #define _POSIX2_BC_SCALE_MAX 99 106 #define _POSIX2_BC_STRING_MAX 1000 107 #define _POSIX2_CHARCLASS_NAME_MAX 14 108 #define _POSIX2_COLL_WEIGHTS_MAX 2 109 #define _POSIX2_EXPR_NEST_MAX 32 110 #define _POSIX2_LINE_MAX 2048 111 #define _POSIX2_RE_DUP_MAX 255 112 113 /* 114 * X/Open CAE Specifications, 115 * adopted in IEEE Std 1003.1-2001 XSI. 116 */ 117 #if (_POSIX_C_SOURCE - 0) >= 200112L || defined(_XOPEN_SOURCE) || \ 118 defined(_NETBSD_SOURCE) 119 #define _XOPEN_IOV_MAX 16 120 #define _XOPEN_NAME_MAX 256 121 #define _XOPEN_PATH_MAX 1024 122 123 #define PASS_MAX 128 /* Legacy */ 124 125 #define CHARCLASS_NAME_MAX 14 126 #define NL_ARGMAX 9 127 #define NL_LANGMAX 14 128 #define NL_MSGMAX 32767 129 #define NL_NMAX 1 130 #define NL_SETMAX 255 131 #define NL_TEXTMAX 2048 132 133 /* IEEE Std 1003.1-2001 TSF */ 134 #define _GETGR_R_SIZE_MAX 1024 135 #define _GETPW_R_SIZE_MAX 1024 136 137 /* Always ensure that this is consistent with <stdio.h> */ 138 #ifndef TMP_MAX 139 #define TMP_MAX 308915776 /* Legacy */ 140 #endif 141 #endif /* _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE || _NETBSD_SOURCE */ 142 143 /* 144 * IEEE Std 1003.1-2024 (POSIX.1-2024) 145 */ 146 #if (_POSIX_C_SOURCE - 0) >= 202405L || (_XOPEN_SOURCE - 0) >= 800 || \ 147 defined(_NETBSD_SOURCE) 148 #define GETENTROPY_MAX 256 149 #endif 150 151 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 152 153 #define MB_LEN_MAX 32 /* Allow ISO/IEC 2022 */ 154 155 #include <machine/limits.h> 156 157 #ifdef __CHAR_UNSIGNED__ 158 # define CHAR_MIN 0 159 # define CHAR_MAX UCHAR_MAX 160 #else 161 # define CHAR_MIN SCHAR_MIN 162 # define CHAR_MAX SCHAR_MAX 163 #endif 164 165 #include <sys/syslimits.h> 166 167 #endif /* !_LIMITS_H_ */ 168
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