68 lines
1.3 KiB
Lua
68 lines
1.3 KiB
Lua
args = { ... }
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cache = {}
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allow_dynamic_lns_hosts = false
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function lns_lookup(hostname)
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local data = {
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["action"] = "lookup",
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["hostname"] = hostname
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}
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local lns_server_id = 7
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if allow_dynamic_lns_hosts then
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lns_server_id = rednet.lookup("lns", lns_server)
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if lns_server_id == nil then
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io.write("LNS Server not found!\n")
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return
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end
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end
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rednet.send(lns_server_id, data)
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while true do
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id, msg = rednet.receive()
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if id == lns_server_id then
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if msg == nil then
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return nil
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else
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return msg
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end
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end
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end
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end
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local action = args[1]
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if action == nil then
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io.write("Usage: lns <action>\n")
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return
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end
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if action == "lookup" then
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local hostname = args[2]
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if hostname == nil then
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io.write("Usage: lns lookup <hostname>\n")
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return
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end
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if cache[hostname] ~= nil then
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io.write(cache[hostname])
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return
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end
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local id = lns_lookup(hostname)
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cache[hostname] = id
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if id ~= nil then
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io.write(id)
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end
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else if action == "clear" then
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local data = {
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["action"] = "reload"
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}
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lns_server_id = rednet.lookup("lns", lns_server)
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rednet.send(lns_server_id, data)
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print("Reloaded LNS Server")
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end |