Minecraft CC Listen Local Id

function split(pString, pPattern)
   local Table = {}  -- NOTE: use {n = 0} in Lua-5.0
   local fpat = "(.-)" .. pPattern
   local last_end = 1
   local s, e, cap = pString:find(fpat, 1)
   while s do
          if s ~= 1 or cap ~= "" then
         table.insert(Table,cap)
          end
          last_end = e+1
          s, e, cap = pString:find(fpat, last_end)
   end
   if last_end <= #pString then
          cap = pString:sub(last_end)
          table.insert(Table, cap)
   end
   return Table
end
local function getId()
    local id = 99
    if fs.exists("/data/owner") then
        local file = fs.open("/data/owner","r")
        local content = file.readAll()
        if content == "" then print("Computer not owned, global frequency used.") return id end
        local id = tonumber(split(content,"_")[2])
    return id
    else
        print("Computer not owned, global frequency used.")
    return id
    end
end

local id = getId()
local modem = peripheral.find("modem")
if not modem then print("Modem required, please attach one before using this program") end
modem.open(id)
term.clear()
term.setCursorPos(1,1)
print("Listening on Local Frequency:",id)
while true do
    local ev,side,channel,rpchannel,msg,distance = os.pullEvent()
    if ev == "modem_message" then
        print("Frequency:",channel)
        print("R:",msg.Reason)
        if term.isColor() then
            term.setTextColour(colors.purple)
        end
        print("C:",msg.Content)
        term.setTextColor(colors.white)
    elseif ev == "key" then
        local key = keys.getName(side)
        if key == "c" then
            term.clear()
            term.setCursorPos(1,1)
            print("Listening on Local Frequency:",id)
        end
    end
end