funfs/funfsbyteswap.h

   1 #ifndef __FunFSBYTESWAP_H
   2 #define __FunFSBYTESWAP_H
   3
   4 #include <endian.h>
   5 #include <byteswap.h>
   6 #include <netinet/in.h>
   7
   8 #if __BYTE_ORDER == __LITTLE_ENDIAN
   9 # define SWAP64(x) _swap64(x)
  10 # define SWAP32(x) _swap32(x)
  11 # define SWAP16(x) _swap16(x)
  12 #elif __BYTE_ORDER == __BIG_ENDIAN
  13 # define SWAP64(x) x
  14 # define SWAP32(x) x
  15 # define SWAP16(x) x
  16 #endif
  17
  18
  19 inline unsigned long long int *_swap64(void *i)
  20 {
  21     unsigned long long int *& p = (unsigned long long int *)i;
  22     __bswap_64(*p);
  23     return p;
  24 }
  25
  26 inline unsigned long int *_swap32(void *i)
  27 {
  28     unsigned long int *& p = (unsigned long int *)i;
  29     *p = htonl(*p);
  30     return p;
  31 }
  32
  33 inline unsigned short int *_swap16(void *i)
  34 {
  35     unsigned short int *& p = (unsigned short int *)i;
  36     *p = htons(*p);
  37     return p;
  38 }
  39
  40 inline unsigned long long int abswap(unsigned long long int i)
  41 {
  42     __bswap_64(i);
  43     return i;
  44 }
  45
  46 inline unsigned long int abswap(unsigned long int i)
  47 {
  48     return htonl(i);
  49 }
  50
  51 inline unsigned short int abswap(unsigned short int i)
  52 {
  53     return htons(i);
  54 }
  55
  56 #endif