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net/adns.lua @ 895:43f7653fb662
Merge
author | Matthew Wild <mwild1@gmail.com> |
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date | Sat, 14 Mar 2009 16:05:22 +0000 |
parent | 886:96de7f0a41cc |
child | 973:b091a1a7273b |
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local server = require "net.server"; local dns = require "net.dns"; local log = require "util.logger".init("adns"); local coroutine, tostring = coroutine, tostring; module "adns" function lookup(handler, qname, qtype, qclass) return dns.peek(qname, qtype, qclass) or coroutine.wrap(function () log("debug", "Records for "..qname.." not in cache, sending query (%s)...", tostring(coroutine.running())); dns.query(qname, qtype, qclass); coroutine.yield(nil); -- Wait for reply log("debug", "Reply for "..qname.." (%s)", tostring(coroutine.running())); handler(dns.peek(qname, qtype, qclass)); end)(); end function new_async_socket(sock) local newconn = {}; local listener = {}; function listener.incoming(conn, data) dns.feed(sock, data); end function listener.disconnect() end newconn.handler, newconn._socket = server.wrapclient(sock, "dns", 53, listener); newconn.handler.settimeout = function () end newconn.handler.setsockname = function (_, ...) return sock:setsockname(...); end newconn.handler.setpeername = function (_, ...) local ret = sock:setpeername(...); _.setsend(sock.send); return ret; end newconn.handler.connect = function (_, ...) return sock:connect(...) end newconn.handler.send = function (_, data) return _.write(data) end return newconn.handler; end dns:socket_wrapper_set(new_async_socket); return _M;