[jdev] Re: JabberD 1.4.* license question

Peter Saint-Andre stpeter at jabber.org
Tue Dec 21 12:04:09 CST 2004

In article <41C83ED8.5060700 at erlang-fr.org>,
 Mickael Remond <mickael.remond at erlang-fr.org> wrote:

> Wojtek wrote:
> > Hi,
> > 
> > 
> > As I found JabberD 1.4.* is licensed under GNU GPL.
> > 
> > If i will make an external component (jabber:component:accept one  
> > according to JEP-0114) for logging messages does it fall into 
> > "derivative  work" category of GPL?  If so, the component should be 
> > opened source under  GPL (or other OSI compatible license).  Am I wrong?
> In my opinion, it depend of the nature of your module. This is true if 
> your module is strongly linked (library bound to the code). If the 
> module is communicating through a network socket using the XML protocol, 
> I think you can provide a proprietary implementation.

This is correct. External components can have any license you want.

> > Another question.  Can commercial apllications communicate through 
> > JabberD  1.4.* without any license restrictions?
> Yes. If it were not the case, you would not be able to use 
> infrastructure software through the network and would have a problem 
> with GPL STMP server (you could not send mail with Outlook for exemple) 
> or with FTP server (You could not use a proprietary software to upload 
> files).
> So, I think there is no problem.



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