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* [9fans] p9f licensing question (u9fs)
@ 2021-04-11 16:46 Giacomo Tesio
  2021-04-11 18:55 ` David du Colombier
  0 siblings, 1 reply; 4+ messages in thread
From: Giacomo Tesio @ 2021-04-11 16:46 UTC (permalink / raw)
  To: 9fans

Hello 9fans,

browsing the 9p.io's sources of plan9 I have noticed that u9fs have a
specific LICENSE file that is not MIT, while the page header says
"Distributed under the MIT License".

What's the actual license under which u9fs is distributed by the
Plan 9 Foundation?


Giacomo

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* Re: [9fans] p9f licensing question (u9fs)
  2021-04-11 16:46 [9fans] p9f licensing question (u9fs) Giacomo Tesio
@ 2021-04-11 18:55 ` David du Colombier
  2021-04-12  6:53   ` Giacomo Tesio
  0 siblings, 1 reply; 4+ messages in thread
From: David du Colombier @ 2021-04-11 18:55 UTC (permalink / raw)
  To: 9fans

> browsing the 9p.io's sources of plan9 I have noticed that u9fs have a
> specific LICENSE file that is not MIT, while the page header says
> "Distributed under the MIT License".
> 
> What's the actual license under which u9fs is distributed by the
> Plan 9 Foundation?

I suppose you are referring to this:

https://9p.io/sources/plan9/sys/src/cmd/unix/u9fs/LICENSE

This is an old license that was used by Lucent to share software
such as AWK, sam, u9fs, etc. as part of the Netlib collection.

This license was quite permissive and similar to the MIT license.

You can ignore this file and consider u9fs is distributed under MIT.

-- 
David du Colombier

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* Re: [9fans] p9f licensing question (u9fs)
  2021-04-11 18:55 ` David du Colombier
@ 2021-04-12  6:53   ` Giacomo Tesio
  2021-04-12  7:40     ` hiro
  0 siblings, 1 reply; 4+ messages in thread
From: Giacomo Tesio @ 2021-04-12  6:53 UTC (permalink / raw)
  To: 9fans

Thanks David,

On Sun, 11 Apr 2021 20:55:33 +0200 David du Colombier wrote:

> > browsing the 9p.io's sources of plan9 I have noticed that u9fs have
> > a specific LICENSE file that is not MIT, while the page header says
> > "Distributed under the MIT License".
> > 
> > What's the actual license under which u9fs is distributed by the
> > Plan 9 Foundation?  
> 
> I suppose you are referring to this:
> 
> https://9p.io/sources/plan9/sys/src/cmd/unix/u9fs/LICENSE

Yes I am.
Sorry, I should have liked the page. 

> This is an old license that was used by Lucent to share software
> such as AWK, sam, u9fs, etc. as part of the Netlib collection.
> 
> This license was quite permissive and similar to the MIT license.

It looks so, but the wording is wierd (to my untrained eye):

```
Permission to use, copy, modify, and distribute this software for any
purpose without fee is hereby granted, ...
```

the fact is that "without fee" comes before "is hereby granted", not
after, so that it looks as a condition to the distribution grant.

Indeed the canonical MIT license does not mention fees and the "free of
charges" is clearly referred to the permission:
https://opensource.org/licenses/MIT

> You can ignore this file and consider u9fs is distributed under MIT.

Thanks!

But I think that to avoid future issues, the Plan 9 Foundation should
either remove the file or complement it with an explicit statement
about the new MIT licensing.


Giacomo

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* Re: [9fans] p9f licensing question (u9fs)
  2021-04-12  6:53   ` Giacomo Tesio
@ 2021-04-12  7:40     ` hiro
  0 siblings, 0 replies; 4+ messages in thread
From: hiro @ 2021-04-12  7:40 UTC (permalink / raw)
  To: 9fans

can we please move this nit-picking bureaucratic philosophing to the courts?

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end of thread, other threads:[~2021-04-12  7:42 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-11 16:46 [9fans] p9f licensing question (u9fs) Giacomo Tesio
2021-04-11 18:55 ` David du Colombier
2021-04-12  6:53   ` Giacomo Tesio
2021-04-12  7:40     ` hiro

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