| 1 | #ifndef __MACHINE_ENDIAN_H__ |
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| 2 | #define __MACHINE_ENDIAN_H__ |
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| 3 | |
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| 4 | #include <sys/cdefs.h> |
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| 5 | #include <sys/_types.h> |
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| 6 | #include <machine/_endian.h> |
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| 7 | |
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| 8 | #if _BYTE_ORDER == _LITTLE_ENDIAN |
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| 9 | #define _QUAD_HIGHWORD 1 |
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| 10 | #define _QUAD_LOWWORD 0 |
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| 11 | #else |
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| 12 | #define _QUAD_HIGHWORD 0 |
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| 13 | #define _QUAD_LOWWORD 1 |
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| 14 | #endif |
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| 15 | |
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| 16 | #if __BSD_VISIBLE |
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| 17 | #define LITTLE_ENDIAN _LITTLE_ENDIAN |
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| 18 | #define BIG_ENDIAN _BIG_ENDIAN |
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| 19 | #define PDP_ENDIAN _PDP_ENDIAN |
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| 20 | #define BYTE_ORDER _BYTE_ORDER |
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| 21 | #endif |
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| 22 | |
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| 23 | #ifdef __GNUC__ |
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| 24 | #define __bswap16(_x) __builtin_bswap16(_x) |
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| 25 | #define __bswap32(_x) __builtin_bswap32(_x) |
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| 26 | #define __bswap64(_x) __builtin_bswap64(_x) |
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| 27 | #else /* __GNUC__ */ |
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| 28 | static __inline __uint16_t |
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| 29 | __bswap16(__uint16_t _x) |
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| 30 | { |
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| 31 | |
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| 32 | return ((__uint16_t)((_x >> 8) | ((_x << 8) & 0xff00))); |
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| 33 | } |
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| 34 | |
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| 35 | static __inline __uint32_t |
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| 36 | __bswap32(__uint32_t _x) |
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| 37 | { |
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| 38 | |
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| 39 | return ((__uint32_t)((_x >> 24) | ((_x >> 8) & 0xff00) | |
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| 40 | ((_x << 8) & 0xff0000) | ((_x << 24) & 0xff000000))); |
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| 41 | } |
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| 42 | |
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| 43 | static __inline __uint64_t |
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| 44 | __bswap64(__uint64_t _x) |
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| 45 | { |
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| 46 | |
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| 47 | return ((__uint64_t)((_x >> 56) | ((_x >> 40) & 0xff00) | |
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| 48 | ((_x >> 24) & 0xff0000) | ((_x >> 8) & 0xff000000) | |
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| 49 | ((_x << 8) & ((__uint64_t)0xff << 32)) | |
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| 50 | ((_x << 24) & ((__uint64_t)0xff << 40)) | |
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| 51 | ((_x << 40) & ((__uint64_t)0xff << 48)) | ((_x << 56)))); |
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| 52 | } |
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| 53 | #endif /* !__GNUC__ */ |
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| 54 | |
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| 55 | #ifndef __machine_host_to_from_network_defined |
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| 56 | #if _BYTE_ORDER == _LITTLE_ENDIAN |
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| 57 | #define __htonl(_x) __bswap32(_x) |
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| 58 | #define __htons(_x) __bswap16(_x) |
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| 59 | #define __ntohl(_x) __bswap32(_x) |
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| 60 | #define __ntohs(_x) __bswap16(_x) |
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| 61 | #else |
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| 62 | #define __htonl(_x) ((__uint32_t)(_x)) |
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| 63 | #define __htons(_x) ((__uint16_t)(_x)) |
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| 64 | #define __ntohl(_x) ((__uint32_t)(_x)) |
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| 65 | #define __ntohs(_x) ((__uint16_t)(_x)) |
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| 66 | #endif |
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| 67 | #endif /* __machine_host_to_from_network_defined */ |
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| 68 | |
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| 69 | #endif /* __MACHINE_ENDIAN_H__ */ |
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