chat

charlist = {}
function init()
  print("Name?")
  name = io.read()
  serverId = rednet.lookup("chatServ","chatServer")
  if serverId ~= nil then
    rednet.send(serverId,"PING","chatServ")
    id, msg = rednet.receive("chatServ")
    if msg == "PONG" then
      if id == serverId then
        rednet.send(id,name)
        return serverId, true
      else
        error("An unknown computer sent a message during handshake... aborting!")
      end
    else
      error("Handshake interrupted for some reason... Aborting!")
    end
  else
    error("You need a server to connect to, silly!")
  end
end
function send(charlist,id)
  msg = " "
  for k,v in pairs(charlist) do
    msg = msg..tostring(charlist[k])
  end
  rednet.send(id,msg)
end
function main(serverid)
  event, idKey, msg = os.pullEvent()
  if event == "rednet_message" then

  elseif event == "char" then
    table.insert(charlist,m,idKey)
    m=m+1
  elseif event == "key_up" then
    if idKey == 28 then
      send(charlist,serverid)
    end
  end
end
--------
m=0
if textutils.serialize(peripheral.getNames()) ~= "{}" then
  rednet.open("back")
else
  error("you need to put a wireless modem above this, dingbat")
end
serverId, status = init()
if status then
  while true do
    main(serverId)
  end
else
  error("Unknown error occured! Aborting...")
end