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70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
4 years ago
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#ifndef __MACHINE_ENDIAN_H__
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#define __MACHINE_ENDIAN_H__
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#include <sys/cdefs.h>
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#include <sys/_types.h>
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#include <machine/_endian.h>
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#if _BYTE_ORDER == _LITTLE_ENDIAN
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#define _QUAD_HIGHWORD 1
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#define _QUAD_LOWWORD 0
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#else
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#define _QUAD_HIGHWORD 0
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#define _QUAD_LOWWORD 1
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#endif
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#if __BSD_VISIBLE
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#define LITTLE_ENDIAN _LITTLE_ENDIAN
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#define BIG_ENDIAN _BIG_ENDIAN
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#define PDP_ENDIAN _PDP_ENDIAN
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#define BYTE_ORDER _BYTE_ORDER
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#endif
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#ifdef __GNUC__
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#define __bswap16(_x) __builtin_bswap16(_x)
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#define __bswap32(_x) __builtin_bswap32(_x)
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#define __bswap64(_x) __builtin_bswap64(_x)
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#else /* __GNUC__ */
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static __inline __uint16_t
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__bswap16(__uint16_t _x)
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{
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return ((__uint16_t)((_x >> 8) | ((_x << 8) & 0xff00)));
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}
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static __inline __uint32_t
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__bswap32(__uint32_t _x)
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{
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return ((__uint32_t)((_x >> 24) | ((_x >> 8) & 0xff00) |
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((_x << 8) & 0xff0000) | ((_x << 24) & 0xff000000)));
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}
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static __inline __uint64_t
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__bswap64(__uint64_t _x)
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{
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return ((__uint64_t)((_x >> 56) | ((_x >> 40) & 0xff00) |
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((_x >> 24) & 0xff0000) | ((_x >> 8) & 0xff000000) |
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((_x << 8) & ((__uint64_t)0xff << 32)) |
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((_x << 24) & ((__uint64_t)0xff << 40)) |
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((_x << 40) & ((__uint64_t)0xff << 48)) | ((_x << 56))));
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}
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#endif /* !__GNUC__ */
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#ifndef __machine_host_to_from_network_defined
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#if _BYTE_ORDER == _LITTLE_ENDIAN
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#define __htonl(_x) __bswap32(_x)
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#define __htons(_x) __bswap16(_x)
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#define __ntohl(_x) __bswap32(_x)
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#define __ntohs(_x) __bswap16(_x)
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#else
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#define __htonl(_x) ((__uint32_t)(_x))
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#define __htons(_x) ((__uint16_t)(_x))
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#define __ntohl(_x) ((__uint32_t)(_x))
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#define __ntohs(_x) ((__uint16_t)(_x))
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#endif
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#endif /* __machine_host_to_from_network_defined */
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#endif /* __MACHINE_ENDIAN_H__ */
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