Re: ??:Re: Can I port 4.4BSD-Lite's TCP/IP protocol stack soure code to my own OS kernel which is GPL Licence?

#1 (**permalink**) 05-07-2008, 10:14 AM

2008/5/5 <hlwhyw@shtel.net.cn>:
> ----- T-SJ<~ -----
> 4S: Jacob Meuser <jakemsr@sdf.lonestar.org>
> HUFZ: PGFZR;, NeTB 5HU, 2008 OBNg3:15
> VwLb: Re: ??:Re: Can I port 4.4BSD-Lite's TCP/IP
>
> protocol stack soure code to my own OS kernel
> which is GPL Licence?
>
>
>
> > On Mon, May 05, 2008 at 10:45:28AM +0800,
> hlwhyw@shtel.net.cn wrote:
> > > I mean that I reserve the original BSD
> licence.
> > > Except that I append a GPL licence at the end
> of
> > > BSD licence in source code.
> > > It looks like that:
> > > /*
> > > Copyright 1994-2008 The FreeBSD Project. All
> > > rights reserved.
> > >
> > > Redistribution and use in source and binary
> forms,
> > > with or without modification, are permitted
> > > provided that the following conditions are
> met:
> > >
> > > 1. Redistributions of source code must
> retain
> > > the above copyright notice, this list of
> > > conditions and the following disclaimer.
> > > 2. Redistributions in binary form must
> > > reproduce the above copyright notice, this
> list of
> > > conditions and the following disclaimer in the
> > > documentation and/or other materials provided
> with
> > > the distribution.
> > >
> > > THIS SOFTWARE IS PROVIDED BY THE FREEBSD
> PROJECT
> > > ``AS IS'' AND ANY EXPRESS OR IMPLIED
> WARRANTIES,
> > > INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
> > > WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> A
> > > PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
> > > SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE
> > > LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> > > SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> > > (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
> > > SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA,
> > > OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
> > > CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
> IN
> > > CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
> > > NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> OUT OF
> > > THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
> THE
> > > POSSIBILITY OF SUCH DAMAGE.
> > >
> > > This program is free software; you can
> > > redistribute it and/or
> > > modify it under the terms of the GNU General
> > > Public License as published by the Free
> Software
> > > Foundation; either version 2 of the License,
> or
> > > (at your option) any later version.
> > > */
> > >
> > > Is that OK?
> >
>
> > curious, why are you asking about this on
> tech@openbsd.org? your
> > questions have nothing to do with OpenBSD.
> >
>
> > anyway, the SFLC has a "guideline" for
> using "permissive-licensed"
> > codein GPL projects:
> >
> >
>
> http://www.softwarefreedom.org/resou...7/gpl-non-gpl-
> > collaboration.html
> > even though it comes from the SFLC, it seems
> mostly reasonable.
> >
> I want to reuse the source code of BSD's. But I am
> not sure whether it is legal. Yes it has nothing
> to do with OpenBSD. But I think you BSDers in this
> mail list kown the answer to my question. If I can
> not reuse the BSD's souce code. I will have to
> rewrite a new one from scratch(I do not want to
> reuse Linux's TCP/IP source code for some reason).
> Anyway, thanks for your information about SFLC.
>
>
> >
> > > ----- T-SJ<~ -----
> > > 4S: Theo de Raadt <deraadt@cvs.openbsd.org>
> > > HUFZ: PGFZR;, NeTB 5HU, 2008 IONg10:49
> > > VwLb: Re: Can I port 4.4BSD-Lite's TCP/IP
> protocol
> > > stack soure code to my own OS kernel which is
> GPL
> > > Licence?
> > >
> > > > >Can I port 4.4BSD-Lite's TCP/IP protocol
> stack
> > > > >soure code to my own OS kernel which is GPL
> > > > >Licence?
> > > >
> > > > Yes, you can port it.
> > > >
> > > > >I know that 4.4BSD-Lite is BSD Licenced. Is
> it
> > > > >legal to port BSD Licenced code and change
> it
> > > to
> > > > >GPL licence?
> > > >
> > > > No. You may never "change" the licence text
> > > that another author put
> > > > on their work. If it were legal and right
> to do
> > > so, don't you think
> > > > some people would immediately delete the GPL
> > > from other pieces of
> > > > software?
> > >
> >
> > --
> > jakemsr@sdf.lonestar.org
> > SDF Public Access UNIX System -
> http://sdf.lonestar.org
>
>

But it seems for you that if you can't make it GPL you can't reuse it?
Why not just port it and keep it as BSD-licenced? It is as easy as
that. Why make it harder?

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