swab.h
#ifndef _LINUX_BYTEORDER_SWAB_H
#define _LINUX_BYTEORDER_SWAB_H
#ifndef __u16
#define __u16 unsigned short
#endif
#ifndef __u32
#define __u32 unsigned int
#endif
#ifndef __u8
#define __u8 unsigned char
#endif
#ifndef __u64
#define __u64 unsigned long long
#endif
static inline __u16 ___swab16(__u16 x)
{
__u16 __x = x;
return (__u16)(
(((__u16)(__x) & (__u16)0x00ffU) << 8) |
(((__u16)(__x) & (__u16)0xff00U) >> 8));
}
static inline __u32 ___swab32(__u32 x)
{
__u32 __x = (x);
return (__u32)(
(((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
(((__u32)(__x) & (__u32)0x0000ff00UL) << 8) |
(((__u32)(__x) & (__u32)0x00ff0000UL) >> 8) |
(((__u32)(__x) & (__u32)0xff000000UL) >> 24));
}
static inline __u64 ___swab64(__u64 x)
{
__u64 __x = (x);
return (__u64)( \
(__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << 56) | \
(__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | \
(__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | \
(__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) << 8) | \
(__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >> 8) | \
(__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
(__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | \
(__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56));
}
#ifndef __arch__swab16
static inline __u16 __arch__swab16(__u16 x)
{
return ___swab16(x);
}
#endif
#ifndef __arch__swab32
static inline __u32 __arch__swab32(__u32 x)
{
__u32 __tmp = (x) ;
return ___swab32(__tmp);
}
#endif
#ifndef __arch__swab64
static inline __u64 __arch__swab64(__u64 x)
{
__u64 __tmp = (x) ;
return ___swab64(__tmp);
}
#endif
#define __swab16(x) __fswab16(x)
#define __swab32(x) __fswab32(x)
#define __swab64(x) __fswab64(x)
static inline const __u16 __fswab16(__u16 x)
{
return __arch__swab16(x);
}
static inline const __u32 __fswab32(__u32 x)
{
return __arch__swab32(x);
}
#define swab16 __swab16
#define swab32 __swab32
#define swab64 __swab64
#define swab16p __swab16p
#define swab32p __swab32p
#define swab64p __swab64p
#define swab16s __swab16s
#define swab32s __swab32s
#define swab64s __swab64s
#endif /* _LINUX_BYTEORDER_SWAB_H */