- coroutine.yield(nil); -- Wait for reply
- log("debug", "Reply for "..qname.." (%s)", tostring(coroutine.running()));
- handler(dns.peek(qname, qtype, qclass));
- end)();
+ coroutine.yield({ qclass or "IN", qtype or "A", qname, coroutine.running()}); -- Wait for reply
+ 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));
+ end
+ end)(dns.peek(qname, qtype, qclass));
+end
+
+function cancel(handle, call_handler)
+ log("warn", "Cancelling DNS lookup for %s", tostring(handle[3]));
+ dns.cancel(handle);
+ if call_handler then
+ coroutine.resume(handle[4]);
+ end