X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=net%2Fadns.lua;h=d0151c8c31a4721b3bddfff472d17a32092b4f04;hb=70281db08732799bcd1ff4dcc3ca51b1388f1375;hp=9438bf4529c914403759daf5dce1804e758afa00;hpb=a01a1e4bc9e3438fed2e8e51f302306f4a3ead9c;p=prosody.git diff --git a/net/adns.lua b/net/adns.lua index 9438bf45..d0151c8c 100644 --- a/net/adns.lua +++ b/net/adns.lua @@ -1,6 +1,6 @@ -- Prosody IM --- Copyright (C) 2008-2009 Matthew Wild --- Copyright (C) 2008-2009 Waqas Hussain +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. @@ -14,6 +14,8 @@ local log = require "util.logger".init("adns"); local t_insert, t_remove = table.insert, table.remove; local coroutine, tostring, pcall = coroutine, tostring, pcall; +local function dummy_send(sock, data, i, j) return (j-i)+1; end + module "adns" function lookup(handler, qname, qtype, qclass) @@ -29,49 +31,50 @@ function lookup(handler, qname, qtype, qclass) log("debug", "Reply for %s (%s)", qname, tostring(coroutine.running())); local ok, err = pcall(handler, dns.peek(qname, qtype, qclass)); if not ok then - log("debug", "Error in DNS response handler: %s", tostring(err)); + log("error", "Error in DNS response handler: %s", tostring(err)); end end)(dns.peek(qname, qtype, qclass)); end -function cancel(handle, call_handler) +function cancel(handle, call_handler, reason) log("warn", "Cancelling DNS lookup for %s", tostring(handle[3])); - dns.cancel(handle); - if call_handler then - coroutine.resume(handle[4]); - end + dns.cancel(handle[1], handle[2], handle[3], handle[4], call_handler); end function new_async_socket(sock, resolver) - local newconn, peername = {}, ""; + local peername = ""; local listener = {}; - function listener.incoming(conn, data) - dns.feed(sock, data); - end - function listener.disconnect(conn, err) - log("warn", "DNS socket for %s disconnected: %s", peername, err); - local servers = resolver.server; - if resolver.socketset[newconn.handler] == resolver.best_server and resolver.best_server == #servers then - log("error", "Exhausted all %d configured DNS servers, next lookup will try %s again", #servers, servers[1]); + local handler = {}; + function listener.onincoming(conn, data) + if data then + dns.feed(handler, data); end + end + function listener.ondisconnect(conn, err) + if err then + log("warn", "DNS socket for %s disconnected: %s", peername, err); + local servers = resolver.server; + if resolver.socketset[conn] == resolver.best_server and resolver.best_server == #servers then + log("error", "Exhausted all %d configured DNS servers, next lookup will try %s again", #servers, servers[1]); + end - resolver:servfail(conn); -- Let the magic commence + resolver:servfail(conn); -- Let the magic commence + end end - newconn.handler, newconn._socket = server.wrapclient(sock, "dns", 53, listener); - if not newconn.handler then + handler = server.wrapclient(sock, "dns", 53, listener); + if not handler then log("warn", "handler is nil"); end - if not newconn._socket then - log("warn", "socket is nil"); - end - newconn.handler.settimeout = function () end - newconn.handler.setsockname = function (_, ...) return sock:setsockname(...); end - newconn.handler.setpeername = function (_, ...) peername = (...); local ret = sock:setpeername(...); _.setsend(sock.send); return ret; end - newconn.handler.connect = function (_, ...) return sock:connect(...) end - newconn.handler.send = function (_, data) _.write(data); return _.sendbuffer(); end - return newconn.handler; + + handler.settimeout = function () end + handler.setsockname = function (_, ...) return sock:setsockname(...); end + handler.setpeername = function (_, ...) peername = (...); local ret = sock:setpeername(...); _:set_send(dummy_send); return ret; end + handler.connect = function (_, ...) return sock:connect(...) end + --handler.send = function (_, data) _:write(data); return _.sendbuffer and _.sendbuffer(); end + handler.send = function (_, data) return sock:send(data); end + return handler; end -dns:socket_wrapper_set(new_async_socket); +dns.socket_wrapper_set(new_async_socket); return _M;