Ensure that channel files are closed if terminated

disknet.lua

@@ -159,6 +159,7 @@ disknet.receive = function(channel)
 
 		loadFList()
 
+		local good, goddamnit = pcall(function()
 			while true do
 				for i = 1, #fList do
 					contents = fList[i].readAll()
@@ -199,6 +200,7 @@ disknet.receive = function(channel)
 									for i = 1, #fList do
 										fList[i].close()
 									end
+									fList, pList = {}, {}
 									break
 								end
 							end
@@ -212,12 +214,20 @@ disknet.receive = function(channel)
 					os.pullEvent("")
 				end
 			end
+		end)
 
+		if good then
 			if contents then
 				return output.message, output.channel, output.id, output.time
 			else
 				return nil
 			end
+		else
+			for i = 1, #fList do
+				fList[i].close()
+			end
+			error(goddamnit, 0)
+		end
 	else
 		error(grr)
 	end