1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#ifndef H_ENDIAN_
#define H_ENDIAN_
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Internal helpers */
#ifndef os_bswap_64
#define os_bswap_64(x) ((uint64_t) \
((((x) & 0xff00000000000000ull) >> 56) | \
(((x) & 0x00ff000000000000ull) >> 40) | \
(((x) & 0x0000ff0000000000ull) >> 24) | \
(((x) & 0x000000ff00000000ull) >> 8) | \
(((x) & 0x00000000ff000000ull) << 8) | \
(((x) & 0x0000000000ff0000ull) << 24) | \
(((x) & 0x000000000000ff00ull) << 40) | \
(((x) & 0x00000000000000ffull) << 56)))
#endif
#ifndef os_bswap_32
#define os_bswap_32(x) ((uint32_t) \
((((x) & 0xff000000) >> 24) | \
(((x) & 0x00ff0000) >> 8) | \
(((x) & 0x0000ff00) << 8) | \
(((x) & 0x000000ff) << 24)))
#endif
#ifndef os_bswap_16
#define os_bswap_16(x) ((uint16_t) \
((((x) & 0xff00) >> 8) | \
(((x) & 0x00ff) << 8)))
#endif
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#ifndef ntohll
#define ntohll(x) ((uint64_t)(x))
#endif
#ifndef htonll
#define htonll(x) ((uint64_t)(x))
#endif
#ifndef ntohl
#define ntohl(x) ((uint32_t)(x))
#endif
#ifndef htonl
#define htonl(x) ((uint32_t)(x))
#endif
#ifndef ntohs
#define ntohs(x) ((uint16_t)(x))
#endif
#ifndef htons
#define htons(x) ((uint16_t)(x))
#endif
#ifndef htobe16
#define htobe16(x) ((uint16_t)(x))
#endif
#ifndef htole16
#define htole16(x) os_bswap_16 (x)
#endif
#ifndef be16toh
#define be16toh(x) ((uint16_t)(x))
#endif
#ifndef le16toh
#define le16toh(x) os_bswap_16 (x)
#endif
#ifndef htobe32
#define htobe32(x) ((uint32_t)(x))
#endif
#ifndef htole32
#define htole32(x) os_bswap_32 (x)
#endif
#ifndef be32toh
#define be32toh(x) ((uint32_t)(x))
#endif
#ifndef le32toh
#define le32toh(x) os_bswap_32 (x)
#endif
#ifndef htobe64
#define htobe64(x) ((uint64_t)(x))
#endif
#ifndef htole64
#define htole64(x) os_bswap_64 (x)
#endif
#ifndef be64toh
#define be64toh(x) ((uint64_t)(x))
#endif
#ifndef le64toh
#define le64toh(x) os_bswap_64 (x)
#endif
#else
#ifndef ntohll
#define ntohll(x) os_bswap_64(x)
#endif
#ifndef htonll
#define htonll ntohll
#endif
#ifndef ntohl
#define ntohl(x) os_bswap_32(x)
#endif
#ifndef htonl
#define htonl ntohl
#endif
#ifndef htons
#define htons(x) os_bswap_16(x)
#endif
#ifndef ntohs
#define ntohs htons
#endif
#ifndef htobe16
#define htobe16(x) os_bswap_16(x)
#endif
#ifndef htole16
#define htole16(x) ((uint16_t)(x))
#endif
#ifndef be16toh
#define be16toh(x) os_bswap_16(x)
#endif
#ifndef le16toh
#define le16toh(x) ((uint16_t)(x))
#endif
#ifndef htobe32
#define htobe32(x) os_bswap_32(x)
#endif
#ifndef htole32
#define htole32(x) ((uint32_t)(x))
#endif
#ifndef be32toh
#define be32toh(x) os_bswap_32(x)
#endif
#ifndef le32toh
#define le32toh(x) ((uint32_t)(x))
#endif
#ifndef htobe64
#define htobe64(x) os_bswap64(x)
#endif
#ifndef htole64
#define htole64(x) ((uint64_t)(x))
#endif
#ifndef be64toh
#define be64toh(x) os_bswap64(x)
#endif
#ifndef le64toh
#define le64toh(x) ((uint64_t)(x))
#endif
#endif
void put_le16(void *buf, uint16_t x);
void put_le24(void *buf, uint32_t x);
void put_le32(void *buf, uint32_t x);
void put_le64(void *buf, uint64_t x);
uint16_t get_le16(const void *buf);
uint32_t get_le24(const void *buf);
uint32_t get_le32(const void *buf);
uint64_t get_le64(const void *buf);
void put_be16(void *buf, uint16_t x);
void put_be24(void *buf, uint32_t x);
void put_be32(void *buf, uint32_t x);
void put_be64(void *buf, uint64_t x);
uint16_t get_be16(const void *buf);
uint32_t get_be24(const void *buf);
uint32_t get_be32(const void *buf);
uint64_t get_be64(const void *buf);
void swap_in_place(void *buf, int len);
void swap_buf(uint8_t *dst, const uint8_t *src, int len);
#ifdef __cplusplus
}
#endif
#endif
|
