From 2e288fade12aba07456550fb215a53ec4a630599 Mon Sep 17 00:00:00 2001
From: Justin Clarke Casey <jjustincc@googlemail.com>
Date: Mon, 15 Dec 2008 18:11:47 +0000
Subject: [PATCH] * minor: Stop presence child status suffering an NRE if the
 agent uuid given is not represent at all

---
 OpenSim/Framework/IScene.cs                | 10 +++++++++-
 OpenSim/Region/Environment/Scenes/Scene.cs | 11 +++++------
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/OpenSim/Framework/IScene.cs b/OpenSim/Framework/IScene.cs
index 63bf7ac702..6a6fdf15ed 100644
--- a/OpenSim/Framework/IScene.cs
+++ b/OpenSim/Framework/IScene.cs
@@ -72,7 +72,15 @@ namespace OpenSim.Framework
 
         string GetSimulatorVersion();
 
-        bool PresenceChildStatus(UUID avatarID);
+        /// <summary>
+        /// Is the agent denoted by the given agentID a child presence in this scene?
+        /// </summary>
+        /// 
+        /// Used by ClientView when a 'kick everyone' or 'estate message' occurs
+        /// 
+        /// <param name="avatarID">AvatarID to lookup</param>
+        /// <returns>true if the presence is a child agent, false if the presence does not exist or is not a child agent</returns>        
+        bool PresenceChildStatus(UUID agentId);
 
         // Diva: get this out of here!!!
         string GetCapsPath(UUID agentId);
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index 9497043cf8..873662e4e2 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -4130,15 +4130,14 @@ namespace OpenSim.Region.Environment.Scenes
             return m_sceneGraph.GetScenePresence(avatarID);
         }
 
-        /// <summary>
-        /// Request an Avatar's Child Status - used by ClientView when a 'kick everyone' or 'estate message' occurs
-        /// </summary>
-        /// <param name="avatarID">AvatarID to lookup</param>
-        /// <returns></returns>
         public override bool PresenceChildStatus(UUID avatarID)
         {
             ScenePresence cp = GetScenePresence(avatarID);
-            return cp.IsChildAgent;
+            
+            if (cp != null)
+                return cp.IsChildAgent;
+            
+            return false;
         }
 
         /// <summary>