58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
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/*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#if __FreeBSD_version >= 500034
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#include_next <sys/endian.h>
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#else
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#include <machine/endian.h>
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#define bswap16(x) (uint16_t) \
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((x >> 8) | (x << 8))
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#define bswap32(x) (uint32_t) \
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((x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24))
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#define bswap64(x) (uint64_t) \
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((x >> 56) | ((x >> 40) & 0xff00) | ((x >> 24) & 0xff0000) | \
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((x >> 8) & 0xff000000) | ((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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* Host to big endian, host to little endian, big endian to host, and little
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* endian to host byte order functions as detailed in byteorder(9).
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*/
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#if _BYTE_ORDER == _LITTLE_ENDIAN
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#define htobe16(x) bswap16((uint16_t)(x))
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#define htobe32(x) bswap32((uint32_t)(x))
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#define htobe64(x) bswap64((uint64_t)(x))
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#define htole16(x) ((uint16_t)(x))
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#define htole32(x) ((uint32_t)(x))
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#define htole64(x) ((uint64_t)(x))
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#define be16toh(x) bswap16((uint16_t)(x))
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#define be32toh(x) bswap32((uint32_t)(x))
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#define be64toh(x) bswap64((uint64_t)(x))
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#define le16toh(x) ((uint16_t)(x))
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#define le32toh(x) ((uint32_t)(x))
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#define le64toh(x) ((uint64_t)(x))
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#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
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#define htobe16(x) ((uint16_t)(x))
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#define htobe32(x) ((uint32_t)(x))
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#define htobe64(x) ((uint64_t)(x))
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#define htole16(x) bswap16((uint16_t)(x))
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#define htole32(x) bswap32((uint32_t)(x))
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#define htole64(x) bswap64((uint64_t)(x))
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#define be16toh(x) ((uint16_t)(x))
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#define be32toh(x) ((uint32_t)(x))
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#define be64toh(x) ((uint64_t)(x))
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#define le16toh(x) bswap16((uint16_t)(x))
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#define le32toh(x) bswap32((uint32_t)(x))
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#define le64toh(x) bswap64((uint64_t)(x))
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#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
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#endif
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