From f91ba70e322e1ec1fcd42dfc0189fb9b80939034 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Tue, 22 Nov 2016 15:28:24 +0100
Subject: net.server_select: Prevent writes after a handler is closed (fixes
 #783 I hope)

---
 net/server_select.lua | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/server_select.lua b/net/server_select.lua
index c50a6ce1..39640a83 100644
--- a/net/server_select.lua
+++ b/net/server_select.lua
@@ -415,6 +415,7 @@ wrapconnection = function( server, listeners, socket, ip, serverport, clientport
 	end
 	handler.port = handler.clientport -- COMPAT server_event
 	local write = function( self, data )
+		if not handler then return false end
 		bufferlen = bufferlen + #data
 		if bufferlen > maxsendlen then
 			_closelist[ handler ] = "send buffer exceeded"	 -- cannot close the client at the moment, have to wait to the end of the cycle
-- 
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