+import Control.Concurrent.ParallelIO.Global (
+ parallel,
+ stopGlobalPool )
+import qualified Data.ByteString.Char8 as BS (
+ getContents,
+ pack,
+ words )
+import Data.List ((\\))
+import Data.String.Utils (join)
+
+import Network.DNS (
+ Domain,
+ FileOrNumericHost(RCHostName),
+ ResolvConf(resolvInfo),
+ defaultResolvConf,
+ lookupNS,
+ makeResolvSeed,
+ withResolver )
+
+import CommandLine (Args(..), get_args)
+import DNS (normalize)
+
+report :: (Domain, Maybe [Domain]) -> IO ()
+report (d, Nothing) =
+ putStrLn $ "Domain " ++ (show d) ++ " not delegated."
+report (d, Just leftovers) =
+ if null leftovers
+ then return ()
+ else putStrLn $ "Domain " ++
+ (show d) ++
+ " delegates somewhere else: " ++
+ (join " " (map show leftovers))
+
+clean :: [Domain] -- ^ List of delegates, @ds@
+ -> (Domain, Maybe [Domain]) -- ^ Pairs of (domain name, lookup result)
+ -> (Domain, Maybe [Domain])
+clean _ p@(_, Nothing) = p
+clean ds (d, Just targets) =
+ (d, Just $ targets \\ ds)
+
+