CCBridge

local portsPath = "ports.cfg"
local portsFile = fs.open(portsPath, "r")
local portsCount = 0

local modem1 = peripheral.wrap("left")
local modem2 = peripheral.wrap("right")

local openingPorts = true

while openingPorts do
    local port = portsFile.readLine()
    if (port == nil) or (portsCount > 128) then
        openingPorts = false
    elseif tonumber(port) ~= nil then
        print("opening port: "..port)
        modem1.open(tonumber(port))
        modem2.open(tonumber(port))
        portsCount = portsCount + 1
    end
end
portsFile.close()

while true do
    local event, side, channel, reply, message, distance = os.pullEvent()
    if event == "modem_message" then
        print(side.." "..channel.." "..reply.." "..message.." "..distance)
        local sendSide
        if side == "left" then
            modem2.transmit(channel, reply, message)
        else
            modem1.transmit(channel, reply, message)
        end
    end
end