Fix a typo and an undefined variable case

lib/io/ioserver.js

@@ -97,7 +97,7 @@ function handleConnection(sock) {
 
     Logger.syslog.log("Accepted socket from " + ip);
     var user = new User(sock);
-    if (sock.handshake.user) {
+    if (sock.handshake && sock.handshake.user) {
         user.name = sock.handshake.user.name;
         user.global_rank = sock.handshake.user.global_rank;
         user.loggedIn = true;

lib/user.js

@@ -496,7 +496,7 @@ User.prototype.login = function (name, pw) {
         if (err) {
             if (err === "Invalid username/password combination") {
                 Logger.eventlog.log("[loginfail] Login failed (bad password): " + name
-                                  + "@" + user.ip);
+                                  + "@" + self.ip);
             }
 
             self.socket.emit("login", {