Re: [Lzip-bug] size of decompression buffer

[Antonio Diaz Diaz]

John Reiser wrote:
> Knowing the length of the uncompressed data output at the beginning
> of decompression is useful to bound the length of the decompression
> buffer, and for noticing output overrun immediately.

Knowing the size of the uncompressed data at the beginning of 
compression would solve all our problems but, as it is impossible for 
pipes and unreliable for files, I do not plan to store it in the header.

The only way I see of circumventing this problem is overriding the 
dictionary size stored in the file header with a command line option:
  lzip -d --force-dictionary-size 1MiB foo.lz

Of course, a forced size too small will provoke a decompression error.


Best regards,
Antonio.