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 "platform.h"
30
31#if HAVE_ENDIAN_H
32#include <endian.h>
33#endif
34
35#if HAVE_SYS_PARAM_H
36#include <sys/param.h>
37#endif
38
39#if HAVE_MACHINE_ENDIAN_H
40#include <machine/endian.h>
41#endif
42
43#if HAVE_SYS_ENDIAN_H
44#include <sys/endian.h>
45#endif
46
47#if HAVE_SYS_TYPES_H
48#include <sys/types.h>
49#endif
50
51#if HAVE_SYS_BYTEORDER_H
52#include <sys/byteorder.h>
53#endif
54
55#if HAVE_SYS_MACHINE_H
56#include <sys/machine.h>
57#endif
58
59#if HAVE_MACHINE_PARAM_H
60#include <machine/param.h>
61#endif
62
63#if HAVE_SYS_ISA_DEFS_H
64#include <sys/isa_defs.h>
65#endif
66
67#define _MHD_BIG_ENDIAN 1234
68#define _MHD_LITTLE_ENDIAN 4321
69#define _MHD_PDP_ENDIAN 2143
70
71#if defined(__BYTE_ORDER__)
72#if defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
73#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
74#elif defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == \
75 __ORDER_LITTLE_ENDIAN__
76#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
77#elif defined(__ORDER_PDP_ENDIAN__) && __BYTE_ORDER__ == __ORDER_PDP_ENDIAN__
78#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
79#endif /* __BYTE_ORDER__ == __ORDER_PDP_ENDIAN__ */
80#elif defined(__BYTE_ORDER)
81#if defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN
82#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
83#elif defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN
84#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
85#elif defined(__PDP_ENDIAN) && __BYTE_ORDER == __PDP_ENDIAN
86#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
87#endif /* __BYTE_ORDER == __PDP_ENDIAN */
88#elif defined (BYTE_ORDER)
89#if defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
90#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
91#elif defined(LITTLE_ENDIAN) && BYTE_ORDER == LITTLE_ENDIAN
92#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
93#elif defined(PDP_ENDIAN) && BYTE_ORDER == PDP_ENDIAN
94#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
95#endif /* __BYTE_ORDER == _PDP_ENDIAN */
96#elif defined (_BYTE_ORDER)
97#if defined(_BIG_ENDIAN) && _BYTE_ORDER == _BIG_ENDIAN
98#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
99#elif defined(_LITTLE_ENDIAN) && _BYTE_ORDER == _LITTLE_ENDIAN
100#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
101#elif defined(_PDP_ENDIAN) && _BYTE_ORDER == _PDP_ENDIAN
102#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
103#endif /* _BYTE_ORDER == _PDP_ENDIAN */
104#endif /* _BYTE_ORDER */
105
106#ifndef _MHD_BYTE_ORDER
107/* Byte order specification didn't detected in system headers */
108/* Try some guessing */
109
110#if (defined(__BIG_ENDIAN__) && ! defined(__LITTLE_ENDIAN__)) || \
111 (defined(_BIG_ENDIAN) && ! defined(_LITTLE_ENDIAN))
112/* Seems that we are on big endian platform */
113#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
114#elif (defined(__LITTLE_ENDIAN__) && ! defined(__BIG_ENDIAN__)) || \
115 (defined(_LITTLE_ENDIAN) && ! defined(_BIG_ENDIAN))
116/* Seems that we are on little endian platform */
117#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
118#elif defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || \
119 defined(__x86_64) || \
120 defined(_M_X64) || defined(_M_AMD64) || defined(i386) || defined(__i386) || \
121 defined(__i386__) || defined(__i486__) || defined(__i586__) || \
122 defined(__i686__) || \
123 defined(_M_IX86) || defined(_X86_) || defined (__THW_INTEL__)
124/* x86 family is little endian */
125#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
126#elif defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
127 defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
128/* Looks like we are on ARM/MIPS in big endian mode */
129#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
130#elif defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || \
131 defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__)
132/* Looks like we are on ARM/MIPS in little endian mode */
133#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
134#elif defined(__m68k__) || defined(M68000) || defined(__hppa__) || \
135 defined(__hppa) || \
136 defined(__HPPA__) || defined(__370__) || defined(__THW_370__) || \
137 defined(__s390__) || defined(__s390x__) || defined(__SYSC_ZARCH__)
138/* Looks like we are on big endian platform */
139#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
140#elif defined(__ia64__) || defined(_IA64) || defined(__IA64__) || \
141 defined(__ia64) || \
142 defined(_M_IA64) || defined(__itanium__) || defined(__bfin__) || \
143 defined(__BFIN__) || defined(bfin) || defined(BFIN)
144/* Looks like we are on little endian platform */
145#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
146#elif defined(_WIN32)
147/* W32 is always little endian on all platforms */
148#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
149#elif defined(WORDS_BIGENDIAN)
150/* Use byte order detected by configure */
151#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
152#endif /* _WIN32 */
153
154#endif /* !_MHD_BYTE_ORDER */
155
156#ifdef _MHD_BYTE_ORDER
157/* Some safety checks */
158#if defined(WORDS_BIGENDIAN) && _MHD_BYTE_ORDER != _MHD_BIG_ENDIAN
159#error \
160 Configure detected big endian byte order but headers specify different byte order
161#elif ! defined(WORDS_BIGENDIAN) && _MHD_BYTE_ORDER == _MHD_BIG_ENDIAN
162#error \
163 Configure did not detect big endian byte order but headers specify big endian byte order
164#endif /* !WORDS_BIGENDIAN && _MHD_BYTE_ORDER == _MHD_BIG_ENDIAN */
165#endif /* _MHD_BYTE_ORDER */
166
167#endif /* !MHD_BYTEORDER_H */
platform-specific includes for libmicrohttpd