From f8c569dc7c825d7ee8bf0fcbc225e3ec0f379862 Mon Sep 17 00:00:00 2001
From: Adam Frisby
Date: Sat, 23 May 2009 05:18:37 +0000
Subject: * NetworkUtil now handles an error case in a way which is easier to
 debug.

---
 OpenSim/Framework/NetworkUtil.cs | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

(limited to 'OpenSim/Framework/NetworkUtil.cs')

diff --git a/OpenSim/Framework/NetworkUtil.cs b/OpenSim/Framework/NetworkUtil.cs
index 1abf0d8..759c52f 100644
--- a/OpenSim/Framework/NetworkUtil.cs
+++ b/OpenSim/Framework/NetworkUtil.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Net.Sockets;
 using System.Net;
 using System.Net.NetworkInformation;
@@ -65,8 +66,15 @@ namespace OpenSim.Framework
                     return subnet.Key;
             }
 
-            // None found. Assume outside network.
-            return null;
+            // Check to see if we can find a IPv4 address.
+            foreach (IPAddress host in Dns.GetHostAddresses(defaultHostname))
+            {
+                if (host.AddressFamily == AddressFamily.InterNetwork)
+                    return host;
+            }
+
+            // Unable to find anything.
+            throw new ArgumentException("[NetworkUtil] Unable to resolve defaultHostname to an IPv4 address for an IPv4 client");
         }
 
         static NetworkUtil()
-- 
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