Primitive remote code execution via OC network

bios.lua

local m=component.proxy(component.list("modem")())
m.open(2412)
local function respond(...)
  local args=table.pack(...)
  pcall(function() m.broadcast(2412, table.unpack(args)) end)
end
local function receive()
  while true do
    local evt,_,_,_,_,cmd=computer.pullSignal()
    if evt=="modem_message" then return load(cmd) end
  end
end
while true do
  local result,reason=pcall(function()
    local result,reason=receive()
    if not result then return respond(reason) end
    respond(result())
  end)
  if not result then respond(reason) end
end

client.lua

local component = require("component")
local event = require("event")
local modem = component.modem
modem.open(2412)
modem.broadcast(2412, "drone=component.proxy(component.list('drone')())")
while true do
  local cmd=io.read()
  if not cmd then return end
  modem.broadcast(2412, cmd)
  print(select(6, event.pull(5, "modem_message")))
end