-typedef int socklen_t;
-#define tcp_read( s, buf, len ) recv( s, buf, len, 0 )
-#define tcp_write( s, buf, len ) send( s, buf, len, 0 )
-#define ioctl( s, c, a ) ioctlsocket( (s), (c), (a) )
-#define ioctl_t u_long
-#define AC_SOCKET_INVALID ((unsigned int) ~0)