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/*
* 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
#if !defined(__BYTE_ORDER) && defined(BYTE_ORDER)
# define __BYTE_ORDER BYTE_ORDER
# if !defined(__BIG_ENDIAN) && defined(BIG_ENDIAN)
# define __BIG_ENDIAN BIG_ENDIAN
# endif
# if !defined(__LITTLE_ENDIAN) && defined(LITTLE_ENDIAN)
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# endif
#endif
#ifndef __BYTE_ORDER
# ifdef __linux__
# include <endian.h>
# else
# define __LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */
# define __BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
# define __PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */
# if defined(sun386) || defined(i386) || defined(__LITTLE_ENDIAN__)
# define __BYTE_ORDER __LITTLE_ENDIAN
# endif
# if defined(sparc) || defined(__BIG_ENDIAN__)
# define __BYTE_ORDER __BIG_ENDIAN
# endif
# endif /* __linux__ */
#endif /* __BYTE_ORDER */
#ifndef __BYTE_ORDER
# error "Undefined __BYTE_ORDER"
#endif
#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));
}
#endif
#endif
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