[PATCH RFC/testing] Upgrade the zlib_inflate library code to a recent version

[Jörn Engel]

On Tue, 4 April 2006 16:56:51 +0100, Richard Purdie wrote:
> On Tue, 2006-04-04 at 17:33 +0200, Jörn Engel wrote:
> > On Tue, 4 April 2006 16:18:08 +0100, Richard Purdie wrote: 
> > > Upgrade the zlib_inflate implementation in the kernel from a patched
> > > version 1.1.3 to a patched 1.2.3. 
> > 
> > s/1.1.3/1.1.4/
> >
> > I once pulled all the bugfixes between the versions into the kernel.
> 
> That's not what the header says :)

Well, the complete patch from 1.1.3 to 1.1.4 was rather big.  Every
single copyright line got updated to a current date, without any other
changes in those files.  I found it rather silly and took the bugfixes
only. ;)

> > > +#if 0
> > > +int zlib_inflatePrime(z_streamp strm, int bits, int value)
> > 
> > Was this code dead in 1.2.3 as well?
> 
> This code was commented out in the kernel by Adrian Bunk as it has no
> users and I just followed that example when updating  I'm sure if
> someone needed it, it could be enabled.

My thinking was rather that we could remove it.  #if 0 has an
advantage in case you made a mistake - easy to revert.  But after a
while...

> > > +#ifndef PKZIP_BUG_WORKAROUND
> > 
> > For the kernel, we can remove compat code against DOS compilers, etc.
> > In this particular case, I believe we can just consider data
> > compressed with PKZIP to be illegal and throw an error.
> 
> Agreed, there are places it can be tidied up a bit further. I was trying
> not to make too many changes so any future updates against zlib are
> easier.

Fair enough.

Jörn

-- 
Data expands to fill the space available for storage.
-- Parkinson's Law