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

[Xin LI]

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hlwhyw at shtel.net.cn wrote:
| Hi, all
|
| Can I port 4.4BSD-Lite's TCP/IP protocol stack soure code to my own OS
kernel which is GPL Licence?
|
| I know that 4.4BSD-Lite is BSD Licenced. Is it legal to port BSD
Licenced code and change it to GPL licence?

I think this is a complex issue, you'd better ask a lawyer who is an
expert in copyright affairs.

For pure 4.4-BSD Lite, the license is 4-clause BSD license, and the
advertisement clause was removed exactly because FSF claims that it
would prevent people from being able to combine BSD licensed code with
GPL licensed ones, therefore, it is legal to combine 4.4-BSD Lite code
with GPL code.

However, it is illegal to change license, if you are not the sole
copyright holder of the code.  There is no point to do this anyway.  On
the other hand, why not just use some FreeBSD code for your product
instead?  Let us know if there is some limitation/lack of functionality?

Cheers,
- --
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!
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