Re: [Lzip-bug] How to reset a LZ_Decoder

[Antonio Diaz Diaz]

Jacob Rief wrote:
> > Resetting the internal flags to a state equivalent to a decoder just after
> > creation can't work. Suppose the next header has not been yet fed to
> > LZ_decompress_write. You'll have to switch to a "search" state, then write
> > data until the header is found.
>
> I assumed that the API client already forwarded its steam to the
> beginning of the next member, which means that the first bytes written
> using LZ_decompress_write(decoder, ...) are 'LZIP...'. That's the way
> I did it for now.

This would unnecessarily skip a whole member if the next header has been 
already written with LZ_decompress_write and the error happens before 
the decoder reads the header from the internal buffer.

Same if the header has been partially written with LZ_decompress_write.

It seems to me that switching to a "search" state, writing data, and 
letting the decoder find the header is the safest approach.


Regards,
Antonio.