From c39f4f9738be3d45c0ee3156732b7a2396d79262 Mon Sep 17 00:00:00 2001
From: Nick O'Leary <nick.oleary@gmail.com>
Date: Mon, 21 Apr 2014 21:42:59 +0100
Subject: [PATCH] Handle port-in-use error on start-up

---
 red.js | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/red.js b/red.js
index 01b7f4336..874778714 100644
--- a/red.js
+++ b/red.js
@@ -163,6 +163,16 @@ function getListenPath() {
 
 RED.start().then(function() {
     if (settings.httpAdminRoot !== false || settings.httpNodeRoot !== false || settings.httpStatic) {
+        server.on('error', function(err) {
+            if (err.errno === "EADDRINUSE") {
+                util.log('[red] Unable to listen on '+getListenPath());
+                util.log('[red] Error: port in use');
+            } else {
+                util.log('[red] Uncaught Exception:');
+                util.log(err.stack);
+            }
+            process.exit(1);
+        });
         server.listen(settings.uiPort,settings.uiHost,function() {
             if (settings.httpAdminRoot === false) {
                 util.log('[red] Admin UI disabled');
@@ -176,14 +186,9 @@ RED.start().then(function() {
 
 
 process.on('uncaughtException',function(err) {
-        if (err.errno === "EADDRINUSE") {
-            util.log('[red] Unable to listen on '+getListenPath());
-            util.log('[red] Error: port in use');
-        } else {
-            util.log('[red] Uncaught Exception:');
-            util.log(err.stack);
-        }
-        process.exit(1);
+    util.log('[red] Uncaught Exception:');
+    util.log(err.stack);
+    process.exit(1);
 });
 
 process.on('SIGINT', function () {