81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
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#ifndef _ENDIAN_H
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#define _ENDIAN_H
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#include <features.h>
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#define __NEED_uint16_t
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#define __NEED_uint32_t
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#define __NEED_uint64_t
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#include <bits/alltypes.h>
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#define __PDP_ENDIAN 3412
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#define BIG_ENDIAN __BIG_ENDIAN
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#define LITTLE_ENDIAN __LITTLE_ENDIAN
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#define PDP_ENDIAN __PDP_ENDIAN
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#define BYTE_ORDER __BYTE_ORDER
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static __inline uint16_t __bswap16(uint16_t __x)
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{
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return __x<<8 | __x>>8;
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}
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static __inline uint32_t __bswap32(uint32_t __x)
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{
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return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24;
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}
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static __inline uint64_t __bswap64(uint64_t __x)
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{
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return __bswap32(__x)+0ULL<<32 | __bswap32(__x>>32);
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}
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define htobe16(x) __bswap16(x)
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#define be16toh(x) __bswap16(x)
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#define htobe32(x) __bswap32(x)
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#define be32toh(x) __bswap32(x)
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#define htobe64(x) __bswap64(x)
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#define be64toh(x) __bswap64(x)
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#define htole16(x) (uint16_t)(x)
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#define le16toh(x) (uint16_t)(x)
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#define htole32(x) (uint32_t)(x)
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#define le32toh(x) (uint32_t)(x)
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#define htole64(x) (uint64_t)(x)
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#define le64toh(x) (uint64_t)(x)
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#else
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#define htobe16(x) (uint16_t)(x)
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#define be16toh(x) (uint16_t)(x)
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#define htobe32(x) (uint32_t)(x)
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#define be32toh(x) (uint32_t)(x)
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#define htobe64(x) (uint64_t)(x)
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#define be64toh(x) (uint64_t)(x)
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#define htole16(x) __bswap16(x)
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#define le16toh(x) __bswap16(x)
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#define htole32(x) __bswap32(x)
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#define le32toh(x) __bswap32(x)
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#define htole64(x) __bswap64(x)
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#define le64toh(x) __bswap64(x)
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#endif
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define betoh16(x) __bswap16(x)
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#define betoh32(x) __bswap32(x)
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#define betoh64(x) __bswap64(x)
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#define letoh16(x) (uint16_t)(x)
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#define letoh32(x) (uint32_t)(x)
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#define letoh64(x) (uint64_t)(x)
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#else
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#define betoh16(x) (uint16_t)(x)
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#define betoh32(x) (uint32_t)(x)
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#define betoh64(x) (uint64_t)(x)
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#define letoh16(x) __bswap16(x)
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#define letoh32(x) __bswap32(x)
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#define letoh64(x) __bswap64(x)
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#endif
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#endif
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#endif
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