Changed socket error handler to handle 'ECONNREFUSED'. In event of EC…

…ONNREFUSED the port is available

lib/portscanner.js

@@ -64,6 +64,7 @@ portscanner.checkPortStatus = function(port, options, callback) {
 
   var host = options.host || '127.0.0.1'
   var timeout = options.timeout || 400
+  var connectionRefused = false;
 
   var socket = new Socket()
     , status = null
@@ -86,12 +87,20 @@ portscanner.checkPortStatus = function(port, options, callback) {
   // Assuming the port is not open if an error. May need to refine based on
   // exception
   socket.on('error', function(exception) {
-    error = exception
-    status = 'closed'
+    if(exception.code !== "ECONNREFUSED") {
+		error = exception
+    }
+	else
+		connectionRefused = true;
+	status = 'closed'
   })
 
   // Return after the socket has closed
-  socket.on('close', function() {
+  socket.on('close', function(exception) {
+	if(exception && !connectionRefused) 
+		error = exception;
+	else
+		error = null;
     callback(error, status)
   })