GNU libmicrohttpd 0.9.77
Loading...
Searching...
No Matches
mhd_byteorder.h
Go to the documentation of this file.
1/*
2 This file is part of libmicrohttpd
3 Copyright (C) 2015 Karlson2k (Evgeny Grin)
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library.
17 If not, see <http://www.gnu.org/licenses/>.
18*/
19
26#ifndef MHD_BYTEORDER_H
27#define MHD_BYTEORDER_H
28
29#include "mhd_options.h"
30
31#include <stdint.h>
32
33#if HAVE_ENDIAN_H
34#include <endian.h>
35#endif
36
37#if HAVE_SYS_PARAM_H
38#include <sys/param.h>
39#endif
40
41#if HAVE_MACHINE_ENDIAN_H
42#include <machine/endian.h>
43#endif
44
45#if HAVE_SYS_ENDIAN_H
46#include <sys/endian.h>
47#endif
48
49#if HAVE_SYS_TYPES_H
50#include <sys/types.h>
51#endif
52
53#if HAVE_SYS_BYTEORDER_H
54#include <sys/byteorder.h>
55#endif
56
57#if HAVE_SYS_MACHINE_H
58#include <sys/machine.h>
59#endif
60
61#if HAVE_MACHINE_PARAM_H
62#include <machine/param.h>
63#endif
64
65#if HAVE_SYS_ISA_DEFS_H
66#include <sys/isa_defs.h>
67#endif
68
69#define _MHD_BIG_ENDIAN 1234
70#define _MHD_LITTLE_ENDIAN 4321
71#define _MHD_PDP_ENDIAN 2143
72
73#if defined(__BYTE_ORDER__)
74#if defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
75#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
76#elif defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == \
77 __ORDER_LITTLE_ENDIAN__
78#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
79#elif defined(__ORDER_PDP_ENDIAN__) && __BYTE_ORDER__ == __ORDER_PDP_ENDIAN__
80#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
81#endif /* __BYTE_ORDER__ == __ORDER_PDP_ENDIAN__ */
82#elif defined(__BYTE_ORDER)
83#if defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN
84#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
85#elif defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN
86#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
87#elif defined(__PDP_ENDIAN) && __BYTE_ORDER == __PDP_ENDIAN
88#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
89#endif /* __BYTE_ORDER == __PDP_ENDIAN */
90#elif defined(BYTE_ORDER)
91#if defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
92#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
93#elif defined(LITTLE_ENDIAN) && BYTE_ORDER == LITTLE_ENDIAN
94#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
95#elif defined(PDP_ENDIAN) && BYTE_ORDER == PDP_ENDIAN
96#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
97#endif /* __BYTE_ORDER == _PDP_ENDIAN */
98#elif defined(_BYTE_ORDER)
99#if defined(_BIG_ENDIAN) && _BYTE_ORDER == _BIG_ENDIAN
100#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
101#elif defined(_LITTLE_ENDIAN) && _BYTE_ORDER == _LITTLE_ENDIAN
102#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
103#elif defined(_PDP_ENDIAN) && _BYTE_ORDER == _PDP_ENDIAN
104#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
105#endif /* _BYTE_ORDER == _PDP_ENDIAN */
106#endif /* _BYTE_ORDER */
107
108#ifndef _MHD_BYTE_ORDER
109/* Byte order specification didn't detected in system headers */
110/* Try some guessing */
111
112#if (defined(__BIG_ENDIAN__) && ! defined(__LITTLE_ENDIAN__)) || \
113 (defined(_BIG_ENDIAN) && ! defined(_LITTLE_ENDIAN))
114/* Seems that we are on big endian platform */
115#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
116#elif (defined(__LITTLE_ENDIAN__) && ! defined(__BIG_ENDIAN__)) || \
117 (defined(_LITTLE_ENDIAN) && ! defined(_BIG_ENDIAN))
118/* Seems that we are on little endian platform */
119#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
120#elif defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || \
121 defined(__x86_64) || \
122 defined(_M_X64) || defined(_M_AMD64) || defined(i386) || defined(__i386) || \
123 defined(__i386__) || defined(__i486__) || defined(__i586__) || \
124 defined(__i686__) || \
125 defined(_M_IX86) || defined(_X86_) || defined(__THW_INTEL__)
126/* x86 family is little endian */
127#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
128#elif defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
129 defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
130/* Looks like we are on ARM/MIPS in big endian mode */
131#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
132#elif defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || \
133 defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__)
134/* Looks like we are on ARM/MIPS in little endian mode */
135#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
136#elif defined(__m68k__) || defined(M68000) || defined(__hppa__) || \
137 defined(__hppa) || \
138 defined(__HPPA__) || defined(__370__) || defined(__THW_370__) || \
139 defined(__s390__) || defined(__s390x__) || defined(__SYSC_ZARCH__)
140/* Looks like we are on big endian platform */
141#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
142#elif defined(__ia64__) || defined(_IA64) || defined(__IA64__) || \
143 defined(__ia64) || \
144 defined(_M_IA64) || defined(__itanium__) || defined(__bfin__) || \
145 defined(__BFIN__) || defined(bfin) || defined(BFIN)
146/* Looks like we are on little endian platform */
147#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
148#elif defined(_WIN32)
149/* W32 is always little endian on all platforms */
150#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
151#elif defined(WORDS_BIGENDIAN)
152/* Use byte order detected by configure */
153#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
154#endif /* _WIN32 */
155
156#endif /* !_MHD_BYTE_ORDER */
157
158#ifdef _MHD_BYTE_ORDER
159/* Some safety checks */
160#if defined(WORDS_BIGENDIAN) && _MHD_BYTE_ORDER != _MHD_BIG_ENDIAN
161#error \
162 Configure detected big endian byte order but headers specify different byte order
163#elif ! defined(WORDS_BIGENDIAN) && _MHD_BYTE_ORDER == _MHD_BIG_ENDIAN
164#error \
165 Configure did not detect big endian byte order but headers specify big endian byte order
166#endif /* !WORDS_BIGENDIAN && _MHD_BYTE_ORDER == _MHD_BIG_ENDIAN */
167#endif /* _MHD_BYTE_ORDER */
168
169#endif /* !MHD_BYTEORDER_H */
additional automatic macros for MHD_config.h