[NUT-devel] Incomplete description of checksum algorithm

[Rich Felker]

On Thu, Feb 16, 2006 at 07:47:49PM +0100, Michael Niedermayer wrote:
> > > personally i would simply include the forward ptr, so the all zero case would
> > > naturally be gone, if the others are against this then we must either use a 
> > 
> > Is there an all-zero case? As far as I can tell, there's no NUT packet
> > that's valid as all zeros, except possibly the very first
> > syncpoint/header pair in the file.
> 
> maybe, but having all zero packets with always matching checksum is risky, 
> we will have to check that no change we do might lead to legal all zero
> packets, and its also more tricky on the demuxer side (search for a packet 
> with matchig checksum vs. search for a packet we can parse with no errors 
> and which has a matching checksum)

Fine, IMO it's ok to include forward pointer, but what about
syncpoints? Do we really want to add another byte to them? :(

Rich