From e172e37c58c1d4ab48e3dcccacb8707c25e0d2bf Mon Sep 17 00:00:00 2001
From: Adam Frisby <adam@gwala.net>
Date: Mon, 30 Jul 2007 21:12:29 +0000
Subject: [PATCH] * Added GetLocalHost() to Util * ExternalHostName supports
 "SYSTEMIP" again.

---
 OpenSim/Framework/General/Types/RegionInfo.cs |  9 ++++++++-
 OpenSim/Framework/General/Util.cs             | 20 +++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/OpenSim/Framework/General/Types/RegionInfo.cs b/OpenSim/Framework/General/Types/RegionInfo.cs
index 57bb398fe8..ef05534d29 100644
--- a/OpenSim/Framework/General/Types/RegionInfo.cs
+++ b/OpenSim/Framework/General/Types/RegionInfo.cs
@@ -207,7 +207,14 @@ namespace OpenSim.Framework.Types
                     this.m_internalEndPoint.Port = (int)configuration_result;
                     break;
                 case "external_host_name":
-                    this.m_externalHostName = (string)configuration_result;
+                    if ((string)configuration_result != "SYSTEMIP")
+                    {
+                        this.m_externalHostName = (string)configuration_result;
+                    }
+                    else
+                    {
+                        this.m_externalHostName = Util.GetLocalHost().ToString();
+                    }
                     break;
                 case "terrain_file":
                     this.estateSettings.terrainFile = (string)configuration_result;
diff --git a/OpenSim/Framework/General/Util.cs b/OpenSim/Framework/General/Util.cs
index bbee4b2c16..9e687bae14 100644
--- a/OpenSim/Framework/General/Util.cs
+++ b/OpenSim/Framework/General/Util.cs
@@ -256,6 +256,26 @@ namespace OpenSim.Framework.Utilities
             return null;
         }
 
+        public static IPAddress GetLocalHost()
+        {
+            string dnsAddress = "localhost";
+
+            IPAddress[] hosts = Dns.GetHostEntry(dnsAddress).AddressList;
+
+            foreach (IPAddress host in hosts)
+            {
+                if (!IPAddress.IsLoopback(host) && host.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
+                {
+                    return host;
+                }
+            }
+
+            if (hosts.Length > 0)
+                return hosts[0];
+
+            return null;
+        }
+
         public Util()
         {