-#define RECV(s,buf,len,flags) recv(s,buf,len,flags)
-#define SEND(s,buf,len,flags) send(s,buf,len,flags)
-#define CLOSESOCKET(s) closesocket(s)
+#define RECV(s,buf,len,flags) recv (s,buf,len,flags)
+#define SEND(s,buf,len,flags) send (s,buf,len,flags)
+#define CLOSESOCKET(s) closesocket (s)