mapping do_sync_query(string s)
Perform a synchronous DNS query.
result of Protocols.DNS.protocol.mkquery
mapping containing query result or 0 on failure/timeout
// perform a hostname lookup, results stored in r->an object d=Protocols.DNS.client(); mapping r=d->do_sync_query(d->mkquery("pike.ida.liu.se", C_IN, T_A));