forked from minetest-mods/irc
30 lines
904 B
Lua
30 lines
904 B
Lua
|
-----------------------------------------------------------------------------
|
||
|
|
-- UDP sample: echo protocol server
|
||
|
|
-- LuaSocket sample files
|
||
|
|
-- Author: Diego Nehab
|
||
|
|
-- RCS ID: $Id: echosrvr.lua,v 1.12 2005/11/22 08:33:29 diego Exp $
|
||
|
|
-----------------------------------------------------------------------------
|
||
|
|
local socket = require("socket")
|
||
|
|
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 = assert(socket.udp())
|
||
|
|
assert(udp:setsockname(host, port))
|
||
|
|
assert(udp:settimeout(5))
|
||
|
|
ip, port = udp:getsockname()
|
||
|
|
assert(ip, port)
|
||
|
|
print("Waiting packets on " .. ip .. ":" .. port .. "...")
|
||
|
|
while 1 do
|
||
|
|
dgram, ip, port = udp:receivefrom()
|
||
|
|
if dgram then
|
||
|
|
print("Echoing '" .. dgram .. "' to " .. ip .. ":" .. port)
|
||
|
|
udp:sendto(dgram, ip, port)
|
||
|
|
else
|
||
|
|
print(ip)
|
||
|
|
end
|
||
|
|
end
|