tools/include/endian.h

   1 #ifndef __endian_compat_h
   2 #define __endian_compat_h
   3
   4 #if defined(__linux__) || defined(__CYGWIN__)
   5 #include <byteswap.h>
   6 #include_next <endian.h>
   7 #elif defined(__APPLE__)
   8 #include <netinet/in.h>
   9 #include <libkern/OSByteOrder.h>
  10 #define bswap_16(x) OSSwapInt16(x)
  11 #define bswap_32(x) OSSwapInt32(x)
  12 #define bswap_64(x) OSSwapInt64(x)
  13 #elif defined(__FreeBSD__)
  14 #include <sys/endian.h>
  15 #define bswap_16(x) bswap16(x)
  16 #define bswap_32(x) bswap32(x)
  17 #define bswap_64(x) bswap64(x)
  18 #elif defined(__OpenBSD__)
  19 #include <sys/types.h>
  20 #define bswap_16(x) __swap16(x)
  21 #define bswap_32(x) __swap32(x)
  22 #define bswap_64(x) __swap64(x)
  23 #else
  24 #include <machine/endian.h>
  25 #define bswap_16(x) swap16(x)
  26 #define bswap_32(x) swap32(x)
  27 #define bswap_64(x) swap64(x)
  28 #endif
  29
  30 #ifndef __BYTE_ORDER
  31 #define __BYTE_ORDER BYTE_ORDER
  32 #endif
  33 #ifndef __BIG_ENDIAN
  34 #define __BIG_ENDIAN BIG_ENDIAN
  35 #endif
  36 #ifndef __LITTLE_ENDIAN
  37 #define __LITTLE_ENDIAN LITTLE_ENDIAN
  38 #endif
  39
  40 #ifndef __linux__
  41 #if __BYTE_ORDER == __LITTLE_ENDIAN
  42 #define htobe16(x) bswap_16(x)
  43 #define be16toh(x) bswap_16(x)
  44 #define htobe32(x) bswap_32(x)
  45 #define be32toh(x) bswap_32(x)
  46 #define htobe64(x) bswap_64(x)
  47 #define be64toh(x) bswap_64(x)
  48 #define htole16(x) (uint16_t)(x)
  49 #define le16toh(x) (uint16_t)(x)
  50 #define htole32(x) (uint32_t)(x)
  51 #define le32toh(x) (uint32_t)(x)
  52 #define htole64(x) (uint64_t)(x)
  53 #define le64toh(x) (uint64_t)(x)
  54 #else
  55 #define htobe16(x) (uint16_t)(x)
  56 #define be16toh(x) (uint16_t)(x)
  57 #define htobe32(x) (uint32_t)(x)
  58 #define be32toh(x) (uint32_t)(x)
  59 #define htobe64(x) (uint64_t)(x)
  60 #define be64toh(x) (uint64_t)(x)
  61 #define htole16(x) bswap_16(x)
  62 #define le16toh(x) bswap_16(x)
  63 #define htole32(x) bswap_32(x)
  64 #define le32toh(x) bswap_32(x)
  65 #define htole64(x) bswap_64(x)
  66 #define le64toh(x) bswap_64(x)
  67 #endif
  68
  69 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
  70 #if __BYTE_ORDER == __LITTLE_ENDIAN
  71 #define betoh16(x) bswap_16(x)
  72 #define betoh32(x) bswap_32(x)
  73 #define betoh64(x) bswap_64(x)
  74 #define letoh16(x) (uint16_t)(x)
  75 #define letoh32(x) (uint32_t)(x)
  76 #define letoh64(x) (uint64_t)(x)
  77 #else
  78 #define betoh16(x) (uint16_t)(x)
  79 #define betoh32(x) (uint32_t)(x)
  80 #define betoh64(x) (uint64_t)(x)
  81 #define letoh16(x) bswap_16(x)
  82 #define letoh32(x) bswap_32(x)
  83 #define letoh64(x) bswap_64(x)
  84 #endif
  85 #endif
  86 #endif
  87
  88 #endif