/* * Lame bswap replacements as we can't assume the host is sane and provides * working versions of these. */ #ifndef _BSWAP_H #define _BSWAP_H 1 #ifdef __linux__ # include <byteswap.h> #else static __inline__ uint16_t bswap_16(uint16_t x) { return ((((x) & 0xff00) >> 8) | \ (((x) & 0x00ff) << 8)); } static __inline__ uint32_t bswap_32(uint32_t x) { return ((((x) & 0xff000000) >> 24) | \ (((x) & 0x00ff0000) >> 8) | \ (((x) & 0x0000ff00) << 8) | \ (((x) & 0x000000ff) << 24)); } static __inline__ uint64_t bswap_64(uint64_t x) { #define _uswap_64(x, sfx) \ return ((((x) & 0xff00000000000000##sfx) >> 56) | \ (((x) & 0x00ff000000000000##sfx) >> 40) | \ (((x) & 0x0000ff0000000000##sfx) >> 24) | \ (((x) & 0x000000ff00000000##sfx) >> 8) | \ (((x) & 0x00000000ff000000##sfx) << 8) | \ (((x) & 0x0000000000ff0000##sfx) << 24) | \ (((x) & 0x000000000000ff00##sfx) << 40) | \ (((x) & 0x00000000000000ff##sfx) << 56)); #if defined(__GNUC__) _uswap_64(x, ull) #else _uswap_64(x, ) #endif #undef _uswap_64 } #endif #endif