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host = host or "localhost"
port = port or 7
if arg then
host = arg[1] or host
port = arg[2] or port
end
host = toip(host)
udp, err = udpsocket()
if not udp then print(err) exit() end
err = setpeername(udp, host, port)
if err then print(err) exit() end
print("Using host '" ..host.. "' and port " ..port.. "...")
while 1 do
line = read()
if not line then exit() end
err = send(udp, line)
if err then print(err) exit() end
dgram, err = receive(udp)
if not dgram then print(err) exit() end
print(dgram)
end
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