Compiler warning fix

lib/getinfo.c

@@ -214,8 +214,10 @@ CURLcode Curl_getinfo(struct SessionHandle *data, CURLINFO info, ...)
 #ifdef MSG_PEEK
       else {
         /* use the socket */
-        if(recv((int)c->sock[FIRSTSOCKET], (void*)&buf, 1, MSG_PEEK) == 0)
+        if(recv((RECV_TYPE_ARG1)c->sock[FIRSTSOCKET], (RECV_TYPE_ARG2)&buf,
+                (RECV_TYPE_ARG3)1, (RECV_TYPE_ARG4)MSG_PEEK) == 0) {
           *param_longp = -1;   /* FIN received */
+        }
       }
 #endif
     }