From 47f66dc6cf78dde18f8984e61a6fa9a822d1d781 Mon Sep 17 00:00:00 2001
From: brain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Wed, 1 Feb 2006 21:45:47 +0000
Subject: *TEST* nick collision code for NICK change in server link

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@3009 e03df62e-2008-0410-955e-edbf42e46eb7
---
 src/modules/m_spanningtree.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/modules/m_spanningtree.cpp b/src/modules/m_spanningtree.cpp
index b081b1d4b..8117b7ef9 100644
--- a/src/modules/m_spanningtree.cpp
+++ b/src/modules/m_spanningtree.cpp
@@ -2126,6 +2126,20 @@ class TreeSocket : public InspSocket
 					}
 					if (who)
 					{
+						if ((command == "NICK") && (params.size() > 0))
+						{
+							/* On nick messages, check that the nick doesnt
+							 * already exist here. If it does, kill their copy,
+							 * and our copy.
+							 */
+							userrec* x = Srv->FindNick(params[0]);
+							if (x)
+							{
+								this->WriteLine(":"+Srv->GetServerName()+" KILL "+params[0]+" :Nickname collision ("+prefix+" -> "+params[0]+")");
+								Srv->QuitUser(x,"Nickname collision ("+prefix+" -> "+params[0]+")");
+								return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+							}
+						}
 						// its a user
 						target = who->server;
 						char* strparams[127];
-- 
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