luasocket/samples/echosrvr.lua
Diego Nehab 58bdb658aa Select re-implemented in a nicer way.
Few changes in internal class and group registration.
Lua modules are compiled and built into library.
Dynamic library tested in Linux and Mac OS X.
2003-06-09 18:23:40 +00:00

29 lines
847 B
Lua

-----------------------------------------------------------------------------
-- UDP sample: echo protocol server
-- LuaSocket 1.5 sample files
-- Author: Diego Nehab
-- RCS ID: $Id$
-----------------------------------------------------------------------------
host = host or "127.0.0.1"
port = port or 7
if arg then
host = arg[1] or host
port = arg[2] or port
end
print("Binding to host '" ..host.. "' and port " ..port.. "...")
udp, err = socket.udp()
if not udp then print(err) os.exit() end
err = udp:setsockname(host, port)
if err then print(err) os.exit() end
udp:timeout(5)
ip, port = udp:getsockname()
print("Waiting packets on " .. ip .. ":" .. port .. "...")
while 1 do
dgram, ip, port = udp:receivefrom()
if not dgram then print(ip)
else
print("Echoing from " .. ip .. ":" .. port)
udp:sendto(dgram, ip, port)
end
end