1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 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 32 #ifndef _LIMITS_H_ 33 #define _LIMITS_H_ 34 35 #include <sys/cdefs.h> 36 37 #if __ISO_C_VISIBLE >= 2023 || __BSD_VISIBLE 38 #define __STDC_VERSION_LIMITS_H__ 202311L 39 #endif 40 41 #if __POSIX_VISIBLE 42 #define _POSIX_ARG_MAX 4096 43 #define _POSIX_LINK_MAX 8 44 #define _POSIX_MAX_CANON 255 45 #define _POSIX_MAX_INPUT 255 46 #define _POSIX_NAME_MAX 14 47 #define _POSIX_PIPE_BUF 512 48 #define _POSIX_SSIZE_MAX 32767 49 #define _POSIX_STREAM_MAX 8 50 51 #if __POSIX_VISIBLE >= 200112 52 #define _POSIX_CHILD_MAX 25 53 #define _POSIX_NGROUPS_MAX 8 54 #define _POSIX_OPEN_MAX 20 55 #define _POSIX_PATH_MAX 256 56 #define _POSIX_TZNAME_MAX 6 57 #else 58 #define _POSIX_CHILD_MAX 6 59 #define _POSIX_NGROUPS_MAX 0 60 #define _POSIX_OPEN_MAX 16 61 #define _POSIX_PATH_MAX 255 62 #define _POSIX_TZNAME_MAX 3 63 #endif 64 65 #if __POSIX_VISIBLE >= 200112 66 #define BC_BASE_MAX 99 /* max ibase/obase values in bc(1) */ 67 #define BC_DIM_MAX 2048 /* max array elements in bc(1) */ 68 #define BC_SCALE_MAX 99 /* max scale value in bc(1) */ 69 #define BC_STRING_MAX 1000 /* max const string length in bc(1) */ 70 #define CHARCLASS_NAME_MAX 14 /* max character class name size */ 71 #define COLL_WEIGHTS_MAX 10 /* max weights for order keyword */ 72 #define EXPR_NEST_MAX 32 /* max expressions nested in expr(1) */ 73 #define LINE_MAX 2048 /* max bytes in an input line */ 74 #define RE_DUP_MAX 255 /* max RE's in interval notation */ 75 76 #define _POSIX2_BC_BASE_MAX 99 77 #define _POSIX2_BC_DIM_MAX 2048 78 #define _POSIX2_BC_SCALE_MAX 99 79 #define _POSIX2_BC_STRING_MAX 1000 80 #define _POSIX2_CHARCLASS_NAME_MAX 14 81 #define _POSIX2_COLL_WEIGHTS_MAX 2 82 #define _POSIX2_EQUIV_CLASS_MAX 2 83 #define _POSIX2_EXPR_NEST_MAX 32 84 #define _POSIX2_LINE_MAX 2048 85 #define _POSIX2_RE_DUP_MAX 255 86 #endif 87 #endif 88 89 #if __POSIX_VISIBLE >= 199309 90 #define _POSIX_AIO_LISTIO_MAX 2 91 #define _POSIX_AIO_MAX 1 92 #define _POSIX_DELAYTIMER_MAX 32 93 #define _POSIX_MQ_OPEN_MAX 8 94 #define _POSIX_MQ_PRIO_MAX 32 95 #define _POSIX_RTSIG_MAX 8 96 #define _POSIX_SEM_NSEMS_MAX 256 97 #define _POSIX_SEM_VALUE_MAX 32767 98 #define _POSIX_SIGQUEUE_MAX 32 99 #define _POSIX_TIMER_MAX 32 100 101 #define _POSIX_CLOCKRES_MIN 20000000 102 #endif 103 104 #if __POSIX_VISIBLE >= 199506 105 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 106 #define _POSIX_THREAD_KEYS_MAX 128 107 #define _POSIX_THREAD_THREADS_MAX 64 108 #endif 109 110 #if __POSIX_VISIBLE >= 200112 111 #define _POSIX_HOST_NAME_MAX 255 112 #define _POSIX_LOGIN_NAME_MAX 9 113 #define _POSIX_SS_REPL_MAX 4 114 #define _POSIX_SYMLINK_MAX 255 115 #define _POSIX_SYMLOOP_MAX 8 116 #define _POSIX_TRACE_EVENT_NAME_MAX 30 117 #define _POSIX_TRACE_NAME_MAX 8 118 #define _POSIX_TRACE_SYS_MAX 8 119 #define _POSIX_TRACE_USER_EVENT_MAX 32 120 #define _POSIX_TTY_NAME_MAX 9 121 122 #define _POSIX_RE_DUP_MAX _POSIX2_RE_DUP_MAX 123 #endif 124 125 #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200809 126 #define NL_ARGMAX 4096 /* max # of position args for printf */ 127 #define NL_MSGMAX 32767 128 #define NL_SETMAX 255 129 #define NL_TEXTMAX 2048 130 #endif 131 132 #if __XSI_VISIBLE 133 #define _XOPEN_IOV_MAX 16 134 #define _XOPEN_NAME_MAX 255 135 #define _XOPEN_PATH_MAX 1024 136 #define PASS_MAX 128 /* _PASSWORD_LEN from <pwd.h> */ 137 138 #define NL_LANGMAX 31 /* max LANG name length */ 139 #define NL_NMAX 1 140 #endif 141 142 #define MB_LEN_MAX 6 /* 31-bit UTF-8 */ 143 144 #if __POSIX_VISIBLE >= 202405 145 #define GETENTROPY_MAX 256 146 #define NSIG_MAX 128 /* _SIG_MAXSIG from <signal.h> */ 147 #endif 148 149 #include <sys/limits.h> 150 151 #if __POSIX_VISIBLE 152 #include <sys/syslimits.h> 153 #endif 154 155 #endif /* !_LIMITS_H_ */ 156