1#ifndef _ENDIAN_H
2#define _ENDIAN_H
3
4#include <features.h>
5
6#define __NEED_uint16_t
7#define __NEED_uint32_t
8#define __NEED_uint64_t
9
10#include <bits/alltypes.h>
11
12#define __PDP_ENDIAN 3412
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
19static __inline uint16_t __bswap16(uint16_t __x)
20{
21	return __x<<8 | __x>>8;
22}
23
24static __inline uint32_t __bswap32(uint32_t __x)
25{
26	return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24;
27}
28
29static __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)
37#define htobe32(x) __bswap32(x)
38#define be32toh(x) __bswap32(x)
39#define htobe64(x) __bswap64(x)
40#define be64toh(x) __bswap64(x)
41#define htole16(x) (uint16_t)(x)
42#define le16toh(x) (uint16_t)(x)
43#define htole32(x) (uint32_t)(x)
44#define le32toh(x) (uint32_t)(x)
45#define htole64(x) (uint64_t)(x)
46#define le64toh(x) (uint64_t)(x)
47#else
48#define htobe16(x) (uint16_t)(x)
49#define be16toh(x) (uint16_t)(x)
50#define htobe32(x) (uint32_t)(x)
51#define be32toh(x) (uint32_t)(x)
52#define htobe64(x) (uint64_t)(x)
53#define be64toh(x) (uint64_t)(x)
54#define htole16(x) __bswap16(x)
55#define le16toh(x) __bswap16(x)
56#define htole32(x) __bswap32(x)
57#define le32toh(x) __bswap32(x)
58#define htole64(x) __bswap64(x)
59#define le64toh(x) __bswap64(x)
60#endif
61
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
78#endif
79
80#endif
81