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Re: Sofia SIP COPYRIGHTS



On Wednesday 21 June 2006 01:56, Nathanael Nerode wrote:
> George Danchev wrote:
> >        I believe that the reason to have that in Sofia-SIP's
> >libsofia-sip-ua/su/strtoull.c is that it comes that way from the original
> >contributors like University of California and Sun Microsystems. Whom
> > legal writer counsel do you suggest to talk to ? UCB & Sun's or the
> > Sofia-SIP upstream which code is licensed under LGPL ? I don't believe
> > that that clause makes it non-free as of DFSG, but if you think
> > otherwise, please express your points.
>
> The "restricted rights" thing is just fine and free as far as the DFSG,
> IMHO, and I've never heard anyone on debian-legal assert otherwise: the
> "restricted rights" clause simply asserts that the US Government doesn't
> get any more rights than anyone else.
>
> The "restricted rights" thing might possibly be a GPL compatibility issue,
> but I'd ask the FSF (www.gnu.org) what they think about that.  I would
> guess not, but what do I know.

I see. This appears to be fine. Thanks for contacting FSF for me , though.

> ----
> Unfortunately, there are DFSG-freeness issues in the package.
>
> >From COPYRIGHTS:
> >The package also contains code derived from RFC 3174 (SHA1). The code is
> >distributed with the following copyright notice by the Internet Society:
> >
> >Partly copyright (C) The Internet Society (2001).  All Rights Reserved.
> >
> >This document [RFC3174] and translations of it may be copied and furnished
> >to others, and derivative works that comment on or otherwise explain it or
> >assist in its implementation may be prepared, copied, published and
>
> ...
>
> This is a notorious problem.  This is the RFC license, and it's non-free. 
> It's non-free because it only grants permission to make derivative works
> which "comment on or otherwise explain it or assist in its implementation".
>  To be DFSG-free, it must grant permission to make derivative works in
> general, even if they are for other purposes.  In fact it explicitly
> prohibits other modifications.  :-(
>
> (In addition, the "Internet Society" copyright statement may well be false,
> if the RFC was written in the US by authors not employed by the Internet
> Society. The RFCs are unfortunately a nest of copyright incompetence.)
>
> Perhaps the usage is small enough that the code is not really a derivative
> work of RFC3174.  If you're lucky.  If not, there's probably an alternate
> SHA1 implementation somewhere which doesn't use the RFC sample code, which
> could be substituted; the actual cipher almost certainly qualifies as an
> uncopyrightable "fact".
> ----

Aha, these are the files:
libsofia-sip-ua/ipt/sofia-sip/sha1.h
libsofia-sip-ua/ipt/sha1.c

> All the other licenses are fine.

Good.

> Joe Smith noted two without an explicit right to sell, but the IBM one
> grants the right to "use in any way he or she deems fit", which I think is
> pretty definite permission.
>
> The other says "unrestricted use", which *probably* implies the right
> to sell; I would contact Pekka Pessi and ask if that includes the right to
> sell. If he says "yes", then I'd say it's fine.

This applies to libsofia-sip-ua/ipt/rc4.c, and libsofia-sip-ua/su/getopt.c was 
incorrectly mentioned in the COPYRIGHTS, since it does not exist.

Thanks for your help and clarifications!

-- 
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