excuse me for arguing a few of these...
On Wed, Nov 19, 2008 at 8:11 PM, David Rees <[EMAIL PROTECTED]> wrote:
> On Wed, Nov 19, 2008 at 6:34 PM, dan <[EMAIL PROTECTED]> wrote:
> > the rync algorythm is actually part of the GPL code released by Andrew
> > Tridgell.
>
> Yes, it is, but you can not Copyright algorithms, and you can't
> protect them from reverse engineering. You can patent an algorithm,
> but I know of no such patents on the algorithms used by rsync (not
> that I've looked).
I believe this is somewhat of a grey area. You will find many references of
this going either way on google.
>
>
> > Like I said, GPL is viral. Tridgell released this algorythm as a part of
> > rsync undel GPL so use of the exact algorythm requires a GPL license.
>
> Please stop using the term viral, as the GPL is not viral. Google it.
> The terms of which GPLed software is licensed are quite clear to
> those who wish to read the license.
I suppose the term viral implies evil or bad which is not what I meant to
say. What I mean is that GPL code will require derivative code to also be
GPL. This is clear and one of the few real issues that man companies have
and partly why BSD licenses and other non-GPL open source licenses have
gained some popularity. As many people here will agree, the GPL has a lot
of good qualities and I am a supporter.
>
>
> > You may reverse engineer the functionality but you cannot use the
> algoryth,
> > just a work-alike.
>
> This is not true.
this is really just an extension of the previous point. It can go either
way.
>
>
> > If you have even looked at the code for rsync, you will likely be
> infringing
> > on the GPL if you license this anything but GPL.
>
> This coud be true which is why I bought up my concern. That is why if
> there is any doubt, one should always perform a clean-room reverse
> engineering effort to produce compatible works.
a clean room easily clears you from GPL violation. Additionally you might
get
>
>
> > I am not some GPL nazi, I am just making this point.
>
> > You might run into some other problems if using GPL code in a C#
> environment
> > if you are using shared libraries that are not GPL.
>
> Another myth. Please stop spreading FUD.
>
> -Dave
>
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