Re: [RFC] CryptoAPI & Compression

Herbert Xu
2005-04-01T15:26:08Z

On Fri, Apr 01, 2005 at 03:36:23PM +0100, Artem B. Bityuckiy wrote:
>
> In our code we do zlib_deflate(stream, Z_SYNC_FLUSH), so we always flush
> the output. So the final zlib_deflate(stream, Z_FINISH) requires 1 byte
> for the EOB marker and 4 bytes for adler32 (5 bytes total). Thats all. If
> we compress a huge buffer, then we still need to output those 5 bytes as
> well. I.e, the overhead of each block *is not accumulated* ! I even need
> to make the reserved space less then 12 bytes!

I thought stored blocks (incompressible blocks) were limited to 64K
in size, no? Please double check zlib_deflate/deflate.c and
zlib_deflate/deftree.c.

Cheers,
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