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#ifndef _I386_BYTEORDER_H

#define _I386_BYTEORDER_H

#undef ntohl

#undef ntohs

#undef htonl

#undef htons

#ifndef __LITTLE_ENDIAN

#define __LITTLE_ENDIAN 1234

#endif

#ifndef __LITTLE_ENDIAN_BITFIELD

#define __LITTLE_ENDIAN_BITFIELD

#endif

/* For avoiding bswap on i386 */

#ifdef __KERNEL__

#include <linux/config.h>

#endif

extern unsigned long int        ntohl(unsigned long int);

extern unsigned short int       ntohs(unsigned short int);

extern unsigned long int        htonl(unsigned long int);

extern unsigned short int       htons(unsigned short int);

extern __inline__ unsigned long int     __ntohl(unsigned long int);

extern __inline__ unsigned short int    __ntohs(unsigned short int);

extern __inline__ unsigned long int     __constant_ntohl(unsigned long int);

extern __inline__ unsigned short int    __constant_ntohs(unsigned short int);

extern __inline__ unsigned long int

__ntohl(unsigned long int x)

{

#if defined(__KERNEL__) && !defined(CONFIG_M386)

        __asm__("bswap %0" : "=r" (x) : "0" (x));

#else

        __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */

                "rorl $16,%0\n\t"       /* swap words           */

                "xchgb %b0,%h0"         /* swap higher bytes    */

                :"=q" (x)

                : "0" (x));

#endif  

        return x;

}

#define __constant_ntohl(x) \

        ((unsigned long int)((((unsigned long int)(x) & 0x000000ffU) << 24) | \

                             (((unsigned long int)(x) & 0x0000ff00U) <<  8) | \

                             (((unsigned long int)(x) & 0x00ff0000U) >>  8) | \

                             (((unsigned long int)(x) & 0xff000000U) >> 24)))

extern __inline__ unsigned short int

__ntohs(unsigned short int x)

{

        __asm__("xchgb %b0,%h0"         /* swap bytes           */

                : "=q" (x)

                :  "0" (x));

        return x;

}

#define __constant_ntohs(x) \

        ((unsigned short int)((((unsigned short int)(x) & 0x00ff) << 8) | \

                              (((unsigned short int)(x) & 0xff00) >> 8))) \

#define __htonl(x) __ntohl(x)

#define __htons(x) __ntohs(x)

#define __constant_htonl(x) __constant_ntohl(x)

#define __constant_htons(x) __constant_ntohs(x)

#ifdef  __OPTIMIZE__

#  define ntohl(x) \

(__builtin_constant_p((long)(x)) ? \

 __constant_ntohl((x)) : \

 __ntohl((x)))

#  define ntohs(x) \

(__builtin_constant_p((short)(x)) ? \

 __constant_ntohs((x)) : \

 __ntohs((x)))

#  define htonl(x) \

(__builtin_constant_p((long)(x)) ? \

 __constant_htonl((x)) : \

 __htonl((x)))

#  define htons(x) \

(__builtin_constant_p((short)(x)) ? \

 __constant_htons((x)) : \

 __htons((x)))

#endif

#endif