{- File system encoding handling.
 -
 - Copyright 2012 Joey Hess <joey@kitenet.net>
 -
 - Licensed under the GNU GPL version 3 or higher.
 -}

module Utility.FileSystemEncoding where

import GHC.IO.Encoding (getFileSystemEncoding)
import GHC.Foreign as GHC

{- Marshal a Haskell FilePath into a NUL terminated C string using temporary
 - storage. The FilePath is encoded using the filesystem encoding,
 - reversing the decoding that should have been done when the FilePath
 - was obtained. -}
withFilePath :: FilePath -> (CString -> IO a) -> IO a
withFilePath fp f = getFileSystemEncoding >>= \enc -> GHC.withCString enc fp f