1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright 2018-2020 Alex Richardson <arichardson@FreeBSD.org> 5 * 6 * This software was developed by SRI International and the University of 7 * Cambridge Computer Laboratory (Department of Computer Science and 8 * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the 9 * DARPA SSITH research programme. 10 * 11 * This software was developed by SRI International and the University of 12 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) 13 * ("CTSRD"), as part of the DARPA CRASH research programme. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 #if __has_include_next(<limits.h>) 39 #include_next <limits.h> 40 #endif 41 42 #ifdef __STRICT_ANSI__ 43 #warning __STRICT_ANSI__ defined 44 #endif 45 46 #if __has_include(<linux/limits.h>) 47 #include <linux/limits.h> 48 #endif 49 50 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L 51 #if !defined(_GNU_SOURCE) 52 #warning "Attempting to use limits.h with -std=c89/without _GNU_SOURCE, many macros will be missing" 53 #endif 54 55 #else /* Not C89 */ 56 /* Not C89 -> check that all macros that we expect are defined */ 57 #ifndef IOV_MAX 58 #error IOV_MAX should be defined 59 #endif 60 #endif /* C89 */ 61 62 #ifndef MAXBSIZE 63 #define MAXBSIZE 65536 /* must be power of 2 */ 64 #endif 65 66 #ifndef OFF_MAX 67 #define OFF_MAX UINT64_MAX 68 #endif 69 70 #ifndef QUAD_MAX 71 #define QUAD_MAX INT64_MAX 72 #endif 73 74 #ifndef GID_MAX 75 #define GID_MAX ((gid_t)-1) 76 #endif 77 78 #ifndef UID_MAX 79 #define UID_MAX ((uid_t)-1) 80 #endif 81 82 #ifdef __GLIBC__ 83 #ifndef _LIBC_LIMITS_H_ 84 #error "DIDN't include correct limits?" 85 #endif 86 87 #ifndef __USE_XOPEN 88 #warning __USE_XOPEN should be defined (did you forget to set _GNU_SOURCE?) 89 #endif 90 91 #include <sys/types.h> 92 #include <sys/uio.h> /* For IOV_MAX */ 93 94 /* Sanity checks for glibc */ 95 #ifndef _GNU_SOURCE 96 #error _GNU_SOURCE not defined 97 #endif 98 99 #ifndef __USE_POSIX 100 #warning __USE_POSIX not defined 101 #endif 102 103 #if defined __GNUC__ && !defined _GCC_LIMITS_H_ 104 #error "GCC limits not included" 105 #endif 106 107 #ifndef __OFF_T_MATCHES_OFF64_T 108 #error "Expected 64-bit off_t" 109 #endif 110 111 #ifndef _POSIX_PATH_MAX 112 #define _POSIX_PATH_MAX PATH_MAX 113 #endif 114 #endif 115