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#if __has_include(<linux/limits.h>)
43#include <linux/limits.h>
44#endif
45
46#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
47#if !defined(_GNU_SOURCE)
48#warning "Attempting to use limits.h with -std=c89/without _GNU_SOURCE, many macros will be missing"
49#endif
50
51#else /* Not C89 */
52/* Not C89 -> check that all macros that we expect are defined */
53#ifndef IOV_MAX
54#error IOV_MAX should be defined
55#endif
56#endif /* C89 */
57
58#ifndef MAXBSIZE
59#define MAXBSIZE 65536 /* must be power of 2 */
60#endif
61
62#ifndef OFF_MAX
63#define OFF_MAX UINT64_MAX
64#endif
65
66#ifndef QUAD_MAX
67#define QUAD_MAX INT64_MAX
68#endif
69
70#ifndef GID_MAX
71#define GID_MAX ((gid_t)-1)
72#endif
73
74#ifndef UID_MAX
75#define UID_MAX ((uid_t)-1)
76#endif
77
78#ifdef __GLIBC__
79#ifndef _LIBC_LIMITS_H_
80#error "DIDN't include correct limits?"
81#endif
82
83#ifndef __USE_XOPEN
84#warning __USE_XOPEN should be defined (did you forget to set _GNU_SOURCE?)
85#endif
86
87#include <sys/types.h>
88#include <sys/uio.h> /* For IOV_MAX */
89
90/* Sanity checks for glibc */
91#ifndef _GNU_SOURCE
92#error _GNU_SOURCE not defined
93#endif
94
95#ifndef __USE_POSIX
96#warning __USE_POSIX not defined
97#endif
98
99#if defined __GNUC__ && !defined _GCC_LIMITS_H_
100#error "GCC limits not included"
101#endif
102
103#ifndef __OFF_T_MATCHES_OFF64_T
104#error "Expected 64-bit off_t"
105#endif
106
107#ifndef _POSIX_PATH_MAX
108#define _POSIX_PATH_MAX PATH_MAX
109#endif
110#endif
111