-type LookupResult = (Domain, Maybe [Domain])
-
--- | Perform a query, but take the result from the authority section
--- of the response rather than the answer section. Code shamelessly
--- stolen from Network.DNS.lookup.
-lookup_authority :: Resolver -> Domain -> TYPE -> IO (Maybe [RDATA])
-lookup_authority rlv dom typ = (>>= toRDATA) <$> lookupRaw rlv dom typ
- where
- correct r = rrtype r == typ
- listToMaybe [] = Nothing
- listToMaybe xs = Just xs
- toRDATA = listToMaybe . map rdata . filter correct . authority
-
--- | Like lookupNS, except we take the result from the authority
--- section of the response (as opposed to the answer section).
-lookupNS_authority :: Resolver -> Domain -> IO (Maybe [Domain])
-lookupNS_authority rlv dom = toNS <$> DNS.lookup_authority rlv dom NS
- where
- toNS = fmap (map unTag)
- unTag (RD_NS dm) = dm
- unTag _ = error "lookupNS_authority"
-