luasocket/samples/daytimeclnt.lua

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-----------------------------------------------------------------------------
-- UDP sample: daytime protocol client
-- LuaSocket 1.5 sample files.
-- Author: Diego Nehab
-- RCS ID: $Id$
-----------------------------------------------------------------------------
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host = host or "127.0.0.1"
port = port or 13
if arg then
host = arg[1] or host
port = arg[2] or port
end
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host = socket.toip(host)
udp = socket.udp()
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print("Using host '" ..host.. "' and port " ..port.. "...")
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udp:setpeername(host, port)
sent, err = udp:send("anything")
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if err then print(err) exit() end
dgram, err = udp:receive()
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if not dgram then print(err) exit() end
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io.write(dgram)