# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1254049151 -3600
# Node ID 48cb27e2716e54c4927085d6793db4217c86602e
# Parent  fc21e8832848c9ed84bef2c5a7e88e692e945f7a
core.s2smanager: Always use last record in the DNS cache

diff -r fc21e8832848 -r 48cb27e2716e core/s2smanager.lua
--- a/core/s2smanager.lua	Fri Sep 25 01:35:46 2009 +0100
+++ b/core/s2smanager.lua	Sun Sep 27 11:59:11 2009 +0100
@@ -254,20 +254,20 @@
 		host_session.connecting = nil;
 		
 		-- COMPAT: This is a compromise for all you CNAME-(ab)users :)
-		if not (reply and reply[1] and reply[1].a) then
+		if not (reply and reply[#reply] and reply[#reply].a) then
 			local count = max_dns_depth;
 			reply = dns.peek(connect_host, "CNAME", "IN");
-			while count > 0 and reply and reply[1] and not reply[1].a and reply[1].cname do
-				log("debug", "Looking up %s (DNS depth is %d)", tostring(reply[1].cname), count);
-				reply = dns.peek(reply[1].cname, "A", "IN") or dns.peek(reply[1].cname, "CNAME", "IN");
+			while count > 0 and reply and reply[#reply] and not reply[#reply].a and reply[#reply].cname do
+				log("debug", "Looking up %s (DNS depth is %d)", tostring(reply[#reply].cname), count);
+				reply = dns.peek(reply[#reply].cname, "A", "IN") or dns.peek(reply[#reply].cname, "CNAME", "IN");
 				count = count - 1;
 			end
 		end
 		-- end of CNAME resolving
 		
-		if reply and reply[1] and reply[1].a then
-			log("debug", "DNS reply for %s gives us %s", connect_host, reply[1].a);
-			return make_connect(host_session, reply[1].a, connect_port);
+		if reply and reply[#reply] and reply[#reply].a then
+			log("debug", "DNS reply for %s gives us %s", connect_host, reply[#reply].a);
+			return make_connect(host_session, reply[#reply].a, connect_port);
 		else
 			log("debug", "DNS lookup failed to get a response for %s", connect_host);
 			if not attempt_connection(host_session, "name resolution failed") then -- Retry if we can