diff options
| -rw-r--r-- | src/Plugins/Monitors/Net.hs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/Plugins/Monitors/Net.hs b/src/Plugins/Monitors/Net.hs index e290539..9819fe2 100644 --- a/src/Plugins/Monitors/Net.hs +++ b/src/Plugins/Monitors/Net.hs @@ -27,6 +27,7 @@ import Control.Monad (forM, filterM) import System.Directory (getDirectoryContents, doesFileExist) import System.FilePath ((</>)) import System.Console.GetOpt +import System.IO.Error (catchIOError) import qualified Data.ByteString.Lazy.Char8 as B @@ -105,9 +106,9 @@ existingDevs = getDirectoryContents "/sys/class/net" >>= filterM isDev excludes = [".", "..", "lo"] isUp :: String -> IO Bool -isUp d = do +isUp d = flip catchIOError (const $ return False) $ do operstate <- B.readFile (operstateDir d) - return $ (B.unpack . head . B.lines) operstate `elem` ["up", "unknown"] + return $! (B.unpack . head . B.lines) operstate `elem` ["up", "unknown"] readNetDev :: [String] -> IO NetDevRawTotal readNetDev (d:x:y:_) = do |