Usermode/Libraries/libpsocket.so_src/byteordering.c

   1 /*
   2  * Acess2 POSIX Sockets Library
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * byteordering.c
   6  * - hton/ntoh
   7  */
   8 #include <arpa/inet.h>
   9
  10 // === CODE ===
  11 static uint32_t Flip32(uint32_t val)
  12 {
  13         return (((val >> 24) & 0xFF) << 0)
  14                 | (((val >> 16) & 0xFF) << 8)
  15                 | (((val >> 8) & 0xFF) << 16)
  16                 | (((val >> 0) & 0xFF) << 24)
  17                 ;
  18 }
  19
  20 static uint16_t Flip16(uint16_t val)
  21 {
  22         return (val >> 8) | (val << 8);
  23 }
  24
  25 uint32_t htonl(uint32_t hostlong)
  26 {
  27         #if BIG_ENDIAN
  28         return hostlong;
  29         #else
  30         return Flip32(hostlong);
  31         #endif
  32 }
  33 uint16_t htons(uint16_t hostshort)
  34 {
  35         #if BIG_ENDIAN
  36         return hostshort;
  37         #else
  38         return Flip16(hostshort);
  39         #endif
  40 }
  41 uint32_t ntohl(uint32_t netlong)
  42 {
  43         #if BIG_ENDIAN
  44         return netlong;
  45         #else
  46         return Flip32(netlong);
  47         #endif
  48 }
  49 uint16_t ntohs(uint16_t netshort)
  50 {
  51         #if BIG_ENDIAN
  52         return netshort;
  53         #else
  54         return Flip16(netshort);
  55         #endif
  56 }
  57
  58