This directory contains a fork of the compress/zlib algorithm from Go.

It's modified so that NewReader returns a ZLibReader instead of an io.Reader, and a function is added to ZLibReader to expose the digest of the compressed block after reading it.

This allows you to look back for the address of the block after reading (assuming that the underlying io.Reader is an io.ReadSeeker.) to find the end of the compressed block, even though the zlib library reads from the io.Reader greedily and might (read: does) read more than it needs to from the io.Reader given to it.