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
|
/*
* endianness.h
*
* Endian-dependant encoding/decoding, header
*
* Copyright (c) 1998, 1999, 2000, 2001, 2004 Beeyond Software Holding
*
* Author: Bob Deblier <bob.deblier@telenet.be>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _ENDIANNESS_H
#define _ENDIANNESS_H
#include "beecrypt/beecrypt.h"
#if defined(__cplusplus) || HAVE_INLINE
static inline int16_t _swap16(int16_t n)
{
return ( ((n & 0xff) << 8) |
((n & 0xff00) >> 8) );
}
# define swap16(n) _swap16(n)
static inline uint16_t _swapu16(uint16_t n)
{
return ( ((n & 0xffU) << 8) |
((n & 0xff00U) >> 8) );
}
# define swapu16(n) _swap16(n)
# ifdef __arch__swab32
# define swap32(n) __arch__swab32(n)
# define swapu32(n) __arch__swab32(n)
# else
static inline int32_t _swap32(int32_t n)
{
return ( ((n & 0xff) << 24) |
((n & 0xff00) << 8) |
((n & 0xff0000) >> 8) |
((n & 0xff000000) >> 24) );
}
# define swap32(n) _swap32(n)
static inline uint32_t _swapu32(uint32_t n)
{
return ( ((n & 0xffU) << 24) |
((n & 0xff00U) << 8) |
((n & 0xff0000U) >> 8) |
((n & 0xff000000U) >> 24) );
}
# define swapu32(n) _swapu32(n)
# endif
# ifdef __arch__swab64
# define swap64(n) __arch__swab64(n)
# define swapu64(n) __arch__swab64(n)
# else
static inline int64_t _swap64(int64_t n)
{
return ( ((n & ((int64_t) 0xff) ) << 56) |
((n & ((int64_t) 0xff) << 8) << 40) |
((n & ((int64_t) 0xff) << 16) << 24) |
((n & ((int64_t) 0xff) << 24) << 8) |
((n & ((int64_t) 0xff) << 32) >> 8) |
((n & ((int64_t) 0xff) << 40) >> 24) |
((n & ((int64_t) 0xff) << 48) >> 40) |
((n & ((int64_t) 0xff) << 56) >> 56) );
}
# define swap64(n) _swap64(n)
static inline uint64_t _swapu64(uint64_t n)
{
return ( ((n & ((uint64_t) 0xff) ) << 56) |
((n & ((uint64_t) 0xff) << 8) << 40) |
((n & ((uint64_t) 0xff) << 16) << 24) |
((n & ((uint64_t) 0xff) << 24) << 8) |
((n & ((uint64_t) 0xff) << 32) >> 8) |
((n & ((uint64_t) 0xff) << 40) >> 24) |
((n & ((uint64_t) 0xff) << 48) >> 40) |
((n & ((uint64_t) 0xff) << 56) >> 56) );
}
# define swapu64(n) _swapu64(n)
# endif
#else
BEECRYPTAPI
int16_t swap16 (int16_t);
BEECRYPTAPI
uint16_t swapu16(uint16_t);
BEECRYPTAPI
int32_t swap32 (int32_t);
BEECRYPTAPI
uint32_t swapu32(uint32_t);
BEECRYPTAPI
int64_t swap64 (int64_t);
BEECRYPTAPI
uint64_t swapu64(uint64_t);
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
#endif
|
