]>
Commit | Line | Data |
---|---|---|
320054e8 DG |
1 | #ifndef _ENDIAN_H |
2 | #define _ENDIAN_H | |
3 | ||
4 | #include <features.h> | |
5 | ||
575e1579 DG |
6 | #define __NEED_uint16_t |
7 | #define __NEED_uint32_t | |
8 | #define __NEED_uint64_t | |
320054e8 | 9 | |
575e1579 | 10 | #include <bits/alltypes.h> |
320054e8 | 11 | |
575e1579 | 12 | #define __PDP_ENDIAN 3412 |
320054e8 DG |
13 | |
14 | #define BIG_ENDIAN __BIG_ENDIAN | |
15 | #define LITTLE_ENDIAN __LITTLE_ENDIAN | |
16 | #define PDP_ENDIAN __PDP_ENDIAN | |
17 | #define BYTE_ORDER __BYTE_ORDER | |
18 | ||
320054e8 DG |
19 | static __inline uint16_t __bswap16(uint16_t __x) |
20 | { | |
21 | return __x<<8 | __x>>8; | |
22 | } | |
23 | ||
24 | static __inline uint32_t __bswap32(uint32_t __x) | |
25 | { | |
26 | return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24; | |
27 | } | |
28 | ||
29 | static __inline uint64_t __bswap64(uint64_t __x) | |
30 | { | |
31 | return __bswap32(__x)+0ULL<<32 | __bswap32(__x>>32); | |
32 | } | |
33 | ||
34 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
35 | #define htobe16(x) __bswap16(x) | |
36 | #define be16toh(x) __bswap16(x) | |
320054e8 DG |
37 | #define htobe32(x) __bswap32(x) |
38 | #define be32toh(x) __bswap32(x) | |
320054e8 DG |
39 | #define htobe64(x) __bswap64(x) |
40 | #define be64toh(x) __bswap64(x) | |
320054e8 DG |
41 | #define htole16(x) (uint16_t)(x) |
42 | #define le16toh(x) (uint16_t)(x) | |
320054e8 DG |
43 | #define htole32(x) (uint32_t)(x) |
44 | #define le32toh(x) (uint32_t)(x) | |
320054e8 DG |
45 | #define htole64(x) (uint64_t)(x) |
46 | #define le64toh(x) (uint64_t)(x) | |
320054e8 DG |
47 | #else |
48 | #define htobe16(x) (uint16_t)(x) | |
49 | #define be16toh(x) (uint16_t)(x) | |
320054e8 DG |
50 | #define htobe32(x) (uint32_t)(x) |
51 | #define be32toh(x) (uint32_t)(x) | |
320054e8 DG |
52 | #define htobe64(x) (uint64_t)(x) |
53 | #define be64toh(x) (uint64_t)(x) | |
320054e8 DG |
54 | #define htole16(x) __bswap16(x) |
55 | #define le16toh(x) __bswap16(x) | |
320054e8 DG |
56 | #define htole32(x) __bswap32(x) |
57 | #define le32toh(x) __bswap32(x) | |
320054e8 DG |
58 | #define htole64(x) __bswap64(x) |
59 | #define le64toh(x) __bswap64(x) | |
320054e8 DG |
60 | #endif |
61 | ||
575e1579 DG |
62 | #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) |
63 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
64 | #define betoh16(x) __bswap16(x) | |
65 | #define betoh32(x) __bswap32(x) | |
66 | #define betoh64(x) __bswap64(x) | |
67 | #define letoh16(x) (uint16_t)(x) | |
68 | #define letoh32(x) (uint32_t)(x) | |
69 | #define letoh64(x) (uint64_t)(x) | |
70 | #else | |
71 | #define betoh16(x) (uint16_t)(x) | |
72 | #define betoh32(x) (uint32_t)(x) | |
73 | #define betoh64(x) (uint64_t)(x) | |
74 | #define letoh16(x) __bswap16(x) | |
75 | #define letoh32(x) __bswap32(x) | |
76 | #define letoh64(x) __bswap64(x) | |
77 | #endif | |
320054e8 DG |
78 | #endif |
79 | ||
80 | #endif |