Data.Binary.Get with Data.Conduit ref: http://qiita.com/liquidamber/items/7c69271ae5c19beee383

conduit_binary.hs

{-# LANGUAGE OverloadedStrings #-}

import Control.Applicative
import Data.Binary.Get
import qualified Data.ByteString as BS
import Data.Conduit
import Data.Conduit.Serialization.Binary
import Data.Word

query :: BS.ByteString
query = "\64\64\0ABC"

qSource :: Monad m => Source m BS.ByteString
qSource = yield query

getter :: Get (Word8, Word16, BS.ByteString)
getter = (,,) <$> getWord8 <*> getWord16be <*> getByteString 3

main = do
  result <- qSource $$ sinkGet getter
  print result