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Diffstat (limited to 'ByteStrings.hs')
| -rw-r--r-- | ByteStrings.hs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ByteStrings.hs b/ByteStrings.hs index 02e22ab..cecf617 100644 --- a/ByteStrings.hs +++ b/ByteStrings.hs @@ -1,3 +1,5 @@ +{-# OPTIONS_GHC -fno-warn-orphans #-} + {- Copyright 2016 Joey Hess <id@joeyh.name> - - Licensed under the GNU AGPL version 3 or higher. @@ -6,6 +8,9 @@ module ByteStrings where import qualified Data.ByteString as B +import qualified Raaz +import Control.Monad +import Data.Word allByteStringsOfLength :: Int -> [B.ByteString] allByteStringsOfLength = go [] @@ -28,3 +33,10 @@ chunkByteString n = go [] | otherwise = let (h, t) = B.splitAt n b in go (h:cs) t + +instance Raaz.Random Word8 + +randomByteStringOfLength :: Int -> Raaz.SystemPRG -> IO B.ByteString +randomByteStringOfLength n prg = B.pack <$> replicateM n randbyte + where + randbyte = Raaz.random prg :: IO Word8 |