X-Git-Url: http://gitweb.michael.orlitzky.com/?p=dead%2Fharbl.git;a=blobdiff_plain;f=harbl-cli%2Fsrc%2FMain.hs;h=9e6e0579c473bbef1afec1e8c391aeeeb0e6d42e;hp=d2ac8d294ed7c0751f6d30df678e31d6759dff8f;hb=a9e293c277eebd06b4916a54342a866aba20ef4f;hpb=b55e5db2a68be5d69b970bbe4b5ad447881abd3d

diff --git a/harbl-cli/src/Main.hs b/harbl-cli/src/Main.hs
index d2ac8d2..9e6e057 100644
--- a/harbl-cli/src/Main.hs
+++ b/harbl-cli/src/Main.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE DoAndIfThenElse #-}
+
 module Main ( main )
 where
 
@@ -5,12 +7,13 @@ import Control.Monad ( liftM, when )
 import Data.Monoid ( (<>) )
 import Text.Parsec ( ParseError, parse )
 import System.Console.CmdArgs ( def )
-import System.Exit ( exitWith, ExitCode (ExitFailure) )
-import System.IO ( hPutStrLn, stderr )
+import System.Exit ( exitSuccess, exitWith, ExitCode (ExitFailure) )
+import System.IO ( hPrint, stderr )
 
 import CommandLine ( get_args )
 import Configuration ( Configuration(..), merge_optional )
 import ExitCodes (
+  exit_host_blacklisted,
   exit_no_hosts,
   exit_no_lists,
   exit_unparseable_host,
@@ -70,13 +73,16 @@ main = do
 
   case (parse_lists $ lists cfg) of
     Left e -> do
-      hPutStrLn stderr (show e)
+      hPrint stderr e
       exitWith (ExitFailure exit_unparseable_list)
-    Right ls -> do
+    Right ls ->
       case (parse_hosts $ hosts cfg) of
         Left e -> do
-          hPutStrLn stderr (show e)
+          hPrint stderr e
           exitWith (ExitFailure exit_unparseable_host)
         Right hs -> do
           listings <- concatMapM (lookup_rbl ls) hs
           mapM_ (putStrLn . listing_message) listings
+          if null listings
+          then exitSuccess
+          else exitWith (ExitFailure exit_host_blacklisted)