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How to sublicense.

mikemizisys

New Member

Thanks: 3
Messages: 8

#1
Hi.

I am doing an experiment based on the FreeBSD code, and I want to know something:

The BSD license allows to convert a BSD (free software license) program into a proprietary (non-free software) program, so if BSD allows to become proprietary a program, I suppose that BSD also allows to become free, but using other license (sublicense).

How to convert a BSD program into GPL license (if it is possible)?

(If I write bad English, forgive me, I really attempt to write the better I can, I speak Spanish and my knowledge of English is very little).
 

kpa

Beastie's Twin

Thanks: 1,679
Messages: 6,084

#2
You can do pretty much what you want with BSD licensed code as long as you keep the original license text in the source code and recognize the original copyright in your (possibly closed source) product. However, you can't take away that freedom by placing restrictions along the lines of what the GPL license does. You can't add a restriction that requires the licensee to publish his/her modifications to the original source code. This means it's not possible to convert BSD licensed code to GPL license because they are in direct conflict in this regard.
 

bsdkeith

Active Member


Messages: 120

#3
BSD code is free - you can use it to do what you like - if you use it in a distributable piece of software, you must acknowledge that it is under the BSD licence & and supply the BSD copyright notice - you have no obligation to supply the source code.

GNU/Linux is also free to use - you can use it to do what you like - if you use it in a distributable piece of software, you are obliged to acknowledge the GPL licence & and supply a copy of it along with your software, & and you have to supply the source code if you are asked for it.
 

SirDice

Administrator
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#4
mikemizisys said:
The BSD license allows to convert a BSD (free software license) program into a proprietary (non-free software) program, so if BSD allows to become proprietary a program, I suppose that BSD also allows to become free, but using other license (sublicense).
Just because you can sell your program without releasing the source code doesn't mean you can re-license the code.

How to convert a BSD program into GPL license (if it is possible)?
That's not allowed.
 

mikemizisys

New Member

Thanks: 3
Messages: 8

#5
And about the MIT license:

The MIT License (MIT)

Copyright (c) <year> <copyright holders>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
In this license the term sublicense appears. So does this license allow to change the license? Is it possible to convert MIT to GPL? Can you change BSD to MIT or MIT to BSD? I have only used the GPL license, so I don't understand about non-copyleft free software licenses.
 

SirDice

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#6
You can't change or remove the license.

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 
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