Difference between revisions of "BSD license"

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(→‎4-clause license (original "BSD License"))
(→‎SEGGER example)
 
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=== 4-clause license (original "BSD License") ===
  
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== 4-clause license (original "BSD License") ==
   
 
The original BSD license contained 4 clauses:
  
The original BSD license contained 4 clauses:
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</nowiki></pre>
  
</nowiki></pre>
   
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==3-clause license==
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This clause was objected to on the grounds that as people changed the license to reflect their name or organization it led to escalating advertising requirements when programs were combined together in a software distribution: every occurrence of the license with a different name required a separate acknowledgment. In arguing against it, [[Richard Stallman]] has stated that he counted 75 such acknowledgments in a 1997 version of [[NetBSD]].<ref name="GNU" /> In addition, the clause presented a legal problem for those wishing to publish BSD-licensed software which relies upon separate programs using the [[GNU General Public License|GNU GPL]]: the advertising clause is [[License compatibility|incompatible]] with the GPL, which does not allow the addition of restrictions beyond those it already imposes; because of this, the GPL's publisher, the [[Free Software Foundation]], recommends developers not use the license, though it states there is no reason not to use software already using it.<ref name="FSF-OriginalBSD" />
  
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The 3-clause license is identical to the 4-clause license, except that clause no. 3 (the advertising clause) has been removed. Accordingly, clause 4 became clause 3.
   
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<pre><nowiki>
−
Today, this original license is now sometimes called "''BSD-old''" or "''4-clause BSD''".
  
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Copyright (c) &lt;year&gt;, &lt;copyright holder&gt;
  +
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.
  +
3. Neither the name of the &lt;organization&gt; nor the
  +
names of its contributors may be used to endorse or promote products
  +
derived from this software without specific prior written permission.
  +
  +
THIS SOFTWARE IS PROVIDED BY &lt;COPYRIGHT HOLDER&gt; ''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 &lt;COPYRIGHT HOLDER&gt; 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.
  +
</nowiki></pre>
  +
  +
== Single-clause license ==
  +
The single-clause license is identical to the 3-clause license, except that clauses no. 2, 3 have been removed.
  +
  +
Code, licensed under the single-clause license can basically be freely used for product development. It does not impose any restrictions on the created product. No copyright notice has to be included in the documentation.
  +
  +
This license is used by freely available software, such as SEGGER's RTT Code.
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  +
=== Generic template ===
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  +
<pre><nowiki>
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Copyright (c) &lt;year&gt;, &lt;copyright holder&gt;
  +
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.
  +
  +
THIS SOFTWARE IS PROVIDED BY &lt;COPYRIGHT HOLDER&gt; ''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 &lt;COPYRIGHT HOLDER&gt; 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.
  +
</nowiki></pre>
  +
  +
=== SEGGER example ===
  +
The following example is the license for SEGGER's RTT target code.
  +
  +
<pre><nowiki>
  +
/*********************************************************************
  +
* SEGGER Microcontroller GmbH *
  +
* The Embedded Experts *
  +
**********************************************************************
  +
* *
  +
* (c) 2014 - 2019 SEGGER Microcontroller GmbH *
  +
* *
  +
* www.segger.com Support: support@segger.com *
  +
* *
  +
**********************************************************************
  +
* *
  +
* SEGGER RTT * Real Time Transfer for embedded targets *
  +
* *
  +
**********************************************************************
  +
* *
  +
* All rights reserved. *
  +
* *
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* SEGGER strongly recommends to not make any changes *
  +
* to or modify the source code of this software in order to stay *
  +
* compatible with the RTT protocol and J-Link. *
  +
* *
  +
* Redistribution and use in source and binary forms, with or *
  +
* without modification, are permitted provided that the following *
  +
* condition is met: *
  +
* *
  +
* o Redistributions of source code must retain the above copyright *
  +
* notice, this condition and the following disclaimer. *
  +
* *
  +
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
  +
* CONTRIBUTORS "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 SEGGER Microcontroller 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. *
  +
* *
  +
**********************************************************************
  +
</nowiki></pre>

Latest revision as of 17:51, 22 July 2019


4-clause license (original "BSD License")

The original BSD license contained 4 clauses: 

Copyright (c) <year>, <copyright holder>
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.
3. All advertising materials mentioning features or use of this software
   must display the following acknowledgement:
   This product includes software developed by the <organization>.
4. Neither the name of the <organization> nor the
   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ''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 <COPYRIGHT HOLDER> 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.

3-clause license

The 3-clause license is identical to the 4-clause license, except that clause no. 3 (the advertising clause) has been removed. Accordingly, clause 4 became clause 3. 

Copyright (c) <year>, <copyright holder>
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.
3. Neither the name of the <organization> nor the
   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ''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 <COPYRIGHT HOLDER> 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.

Single-clause license

The single-clause license is identical to the 3-clause license, except that clauses no. 2, 3 have been removed.

Code, licensed under the single-clause license can basically be freely used for product development. It does not impose any restrictions on the created product. No copyright notice has to be included in the documentation.

This license is used by freely available software, such as SEGGER's RTT Code.

Generic template

Copyright (c) <year>, <copyright holder>
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.

THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ''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 <COPYRIGHT HOLDER> 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.

SEGGER example

The following example is the license for SEGGER's RTT target code. 

/*********************************************************************
*                    SEGGER Microcontroller GmbH                     *
*                        The Embedded Experts                        *
**********************************************************************
*                                                                    *
*            (c) 2014 - 2019 SEGGER Microcontroller GmbH             *
*                                                                    *
*       www.segger.com     Support: support@segger.com               *
*                                                                    *
**********************************************************************
*                                                                    *
*       SEGGER RTT * Real Time Transfer for embedded targets         *
*                                                                    *
**********************************************************************
*                                                                    *
* All rights reserved.                                               *
*                                                                    *
* SEGGER strongly recommends to not make any changes                 *
* to or modify the source code of this software in order to stay     *
* compatible with the RTT protocol and J-Link.                       *
*                                                                    *
* Redistribution and use in source and binary forms, with or         *
* without modification, are permitted provided that the following    *
* condition is met:                                                  *
*                                                                    *
* o Redistributions of source code must retain the above copyright   *
*   notice, this condition and the following disclaimer.             *
*                                                                    *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND             *
* CONTRIBUTORS "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 SEGGER Microcontroller 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.                                                            *
*                                                                    *
**********************************************************************
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