Thank you kindly, Idb for a patch that solves:

The following should silently fail when attached,
llBreakAllLinks, llBreakLink, llCreateLink.
The following should be restricted to avatars in the same sim,
llGetAgentInfo, llSameGroup, llGetAgentSize, llGetAnimationList.
Comment added to the following unimplemented functions,
llGetAgentLanguage, llGetAnimation.

1 files changed, 14 insertions, 3 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index b0a99f3..55e370f 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -2976,6 +2976,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             IClientAPI client = World.GetScenePresence(m_host.TaskInventory[invItemID].PermsGranter).ControllingClient;
             SceneObjectPart targetPart = World.GetSceneObjectPart((UUID)target);
+            if (targetPart.ParentGroup.RootPart.AttachmentPoint != 0)
+                return; // Fail silently if attached
             SceneObjectGroup parentPrim = null, childPrim = null;
             if (targetPart != null)
             {
@@ -3015,6 +3017,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (linknum < ScriptBaseClass.LINK_THIS)
               return;
             SceneObjectGroup parentPrim = m_host.ParentGroup;
+            if (parentPrim.RootPart.AttachmentPoint != 0)
+                return; // Fail silently if attached
             SceneObjectPart childPrim = null;
             switch (linknum)
             {
@@ -3072,6 +3076,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
             SceneObjectGroup parentPrim = m_host.ParentGroup;
+            if (parentPrim.RootPart.AttachmentPoint != 0)
+                return; // Fail silently if attached
             List<SceneObjectPart> parts = new List<SceneObjectPart>(parentPrim.Children.Values);
             parts.Remove(parentPrim.RootPart);
             foreach (SceneObjectPart part in parts)
@@ -3435,6 +3441,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public LSL_String llGetAnimation(string id)
         {
+            // This should only return a value if the avatar is in the same region
             m_host.AddScriptLPS(1);
             NotImplemented("llGetAnimation");
             return String.Empty;
@@ -4649,6 +4656,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return 0;
             }
 
+            if (agent.IsChildAgent)
+                return 0; // Fail if they are not in the same region
+
             // note: in OpenSim, sitting seems to cancel AGENT_ALWAYS_RUN, unlike SL
             if (agent.SetAlwaysRun)
             {
@@ -4728,6 +4738,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public LSL_String llGetAgentLanguage(string id)
         {
+            // This should only return a value if the avatar is in the same region
             m_host.AddScriptLPS(1);
             NotImplemented("llGetAgentLanguage");
             return "";
@@ -4933,7 +4944,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
             ScenePresence avatar = World.GetScenePresence((UUID)id);
             LSL_Vector agentSize;
-            if (avatar == null)
+            if (avatar == null || avatar.IsChildAgent) // Fail if not in the same region
             {
                 agentSize = ScriptBaseClass.ZERO_VECTOR;
             }
@@ -4967,7 +4978,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (!UUID.TryParse(agent, out agentId))
                 return new LSL_Integer(0);
             ScenePresence presence = World.GetScenePresence(agentId);
-            if (presence == null)
+            if (presence == null || presence.IsChildAgent) // Return flase for child agents
                 return new LSL_Integer(0);
             IClientAPI client = presence.ControllingClient;
             if (m_host.GroupID == client.ActiveGroupId)
@@ -6374,7 +6385,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             LSL_List l = new LSL_List();
             ScenePresence av = World.GetScenePresence((UUID)id);
-            if (av == null)
+            if (av == null || av.IsChildAgent) // only if in the region
                 return l;
             UUID[] anims;
             anims = av.GetAnimationArray();