From 9241cbe8377367f6355409634dd9fccae6387bed Mon Sep 17 00:00:00 2001
From: Ferry Boender <ferry.boender@gmail.com>
Date: Tue, 23 Jun 2015 08:49:29 +0200
Subject: [PATCH] Show understandable error when binding to the port fails.

---
 src/scriptform.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/scriptform.py b/src/scriptform.py
index 8617ba9..ef45e6e 100755
--- a/src/scriptform.py
+++ b/src/scriptform.py
@@ -39,6 +39,7 @@ import json
 import logging
 import thread
 import hashlib
+import socket
 
 from daemon import Daemon
 from formdefinition import FormDefinition
@@ -229,6 +230,13 @@ def main():  # pragma: no cover
             elif options.action_stop:
                 daemon.stop()
                 sys.exit(0)
+        except socket.error, err:
+            log.exception(err)
+            sys.stderr.write("Cannot bind to port {}: {}\n".format(
+                options.port,
+                str(err)
+            ))
+            sys.exit(2)
         except Exception, err:
             log.exception(err)
             raise