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The license preamble for Snort 3.0 provides some pretty concrete examples of what we consider to be derivative works. While it's not an exhaustive list and I don't think an exhaustive list is possible - the preamble and Marty's public comments provide pretty clear guidance that if you're modifying and/or redistributing Snort you should be adhering to the terms of the GPL and licensing that project/product under GPL.
If you'd like to contact me either on the snort-users list or off list and provide the specific scenario like David did, I'm happy to discuss it and weigh in on the specifics. If I can't answer the question I'll get the answer.
I will make the same promise to anyone else who has questions about integrating Snort or ClamAV.
My contact information is:
Direct - (410)423-1930
Ace Nimrod wrote:
> It would be very much appreciated if this could get answered. I've asked
> for clarification on what Sourcefire constitutes a derivative of Snort as
> even the Snort 3.0 license doesn't really clarify this.
> I'm sure others would appreciate the answer as well. Sourcefire is the only
> one who can tell us what they think constitutes a derivative that would
> prompt legal action. And getting this information out in the open could
> prevent wasted time for Sourcefire as well as Snort and ClamAV integrators.
> Thank you.
> On 8/17/07, Mike Guiterman <firstname.lastname@example.org> wrote:
>> David, >> >> Here is the part where I tell everyone that I am not a lawyer and do not >> play one on TV. Which means that IMHO unfortunately does not count. I >> am happy to get the right person to answer your question and respond. >> >> You're right that ensuring everyone's copyright is respected is >> critical. Tomasz or another member of the team is probably in a better >> position to answer that one. >> >> David F. Skoll wrote: >>> Mike Guiterman wrote: >>> >>>> Commercial Licensing: Today ClamAv is used in a number of commercial >>>> solutions. ClamAV will continue to be licensed under GPL to vendors >>>> that distribute the derivative products under the GPL. >>> OK, sounds good. Question: We ship ClamAV (plus source as required by >> GPL) >>> with a commercial (non-GPL) product. We make use of ClamAV only >>> through the clamdscan interface over a socket. Do you consider that >>> to be a "derivative product"? I do not, but I'd like to know where you >>> stand. >>> >>>> The intention is to make ClamAV available under a commercial license as >> well. >>> How will you be sure you have removed all contributed code whose >> copyright >>> is not owned by Sourcefire? >>> >>> Regards, >>> >>> David. >>> _______________________________________________ >>> Help us build a comprehensive ClamAV guide: visit http://wiki.clamav.net >>> http://lurker.clamav.net/list/clamav-users.html >> -- >> Mike Guiterman >> >> Snort Community Manager >> >> Sourcefire, Inc. >> >> email@example.com >> >> (410)423-1930 >> >> _______________________________________________ >> Help us build a comprehensive ClamAV guide: visit http://wiki.clamav.net >> http://lurker.clamav.net/list/clamav-users.html >> >>
> Help us build a comprehensive ClamAV guide: visit http://wiki.clamav.net
-- Mike Guiterman Snort Community Manager Sourcefire, Inc. firstname.lastname@example.org (410)423-1930 _______________________________________________ Help us build a comprehensive ClamAV guide: visit http://wiki.clamav.net http://lurker.clamav.net/list/clamav-users.html