BSD lizentziak

BSD lizentziak nagusiki BSD (Berkeley Software Distribution) sistemetan erabiltzen den software libre lizentzia-multzoa da. Izena lizentzia ematen duen UNIX-moduko sistema eragilearen izenetik datorkio.

Berau, Berkeleyko Californiako Unibertsitatean idatzi zein lehenengoz eta zenbait berrikuspen izan ditu ordutik hona, lizentzia eratorri horiek BSD lizentzia aldatua izena dute.

Lizentzia hauek, murriztapen gutxiago dituzte beste software libre lizentzia batzurekin alderatuz gero (esaterako, GPL). Hau da, BSD lizentzia bat esleiturik duten lanak, domeinu publikotik hurbilago daude, beste lizentzia batzuk esleituta dituzten lanak baino.

BSDn erabilitako jatorrizko lizentziaz gain, badaude zenbait lizentzia eratorri, zeinei maiz "BSD lizentzia" modura egiten zaien erreferentzia. Gaur egun, ohiko BSD lizentzia 3 klausulatako bertsioa da, 4 klausulatako bertsio jatorrizkoaren eratorria dena.

Jatorrizko BSD lizentziak, hurrengo bertsioetan aurkitzen ez den klausula bat zuen, "publizitate klausula" bezala ezaguna. Azkenean eztabaida sortu zuen klausula izan zen hau, BSD lizentzia pean lizentziaturiko lan jakin baten lan eratorri ororen publizitatean, jatorrizko iturburu-kodearen autoreen izenak jartzera behartzen baitzuen. Jatorrizko lizentzian, klausula hau 3. zen.

Copyright (c) <urtea>, <copyright jabea(k)>
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 <erakundea>.
4. Neither the name of the <erakundea> 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 JABEA(K)> ''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 <CCOPYRIGHT JABEA(K)> 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. klausula horrek, gero eta publizitate eskakizun gehiago betetzea ekarri zuen, bereziki aplikazioak batera konbinatzen zirenean software banaketa batean, lizentzia beradun autore desberdin bakoitzeko, erreferentzia desberdin bana egitera behartzen baitzuen. Gainera lizentziak, BSD lizentziadun softwarea GPLpean birbanatzerako orduan traba legalak jartzen zituen, publizitate klausula hori ez baita bateragarria GPLrekin, azken honek ez baitu jartzen dituen mugak baino gehiago onartzen.

Gaur egun, jatorrizko lizentzia hau "BSD-zaharra" edo "4 klausulatako BSD" modura da ezaguna.

Publizitate klausula, BSD ofizialetik 1999ko urriaren 22an kendu zuen William Hoskins-ek, Berkeleyko teknologia-lizentzien bulegoko zuzendariak.

Jatorrizko lizentziari batzuetan BSD zaharra deitzen zaion bitartean, 3 klausulatako bertsio hau BSD berria moduan da ezaguna. Izatez, bertsio hau "BSD lizentzia berria" deritzo OSIren arabera.

Bertsio honek, mugagabeko birbanaketa baimentzen du, edozein xederekin, copyright oharra eta garantiari dagozkion lizentziaren oharrak mantentzen diren bitartean. Lizentziak, lan eratorri batek jatorrizko kodearen egileen onespena duela zabaltzea eragozten duen klausula bat ere badu -baldin eta baimen zehatzik ez badute horretarako-.

Copyright (c) <urtea>, <copyright jabea(k)>
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * 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.
    * Neither the name of the <erakundea> 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 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 <COPYRIGHT JABEA(K)> 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.

Oraindik gehiago sinplifikaturiko bertsio bat ere erabiltzen da, FreeBSD sistema eragilean erabiltzen delako ezaguna batik bat. 3 klausulatako bertsioa eta azken bertsio honen artean dagoen desberdintasunik handiena, onespen-klausularen omisioa da. Softwarean adierazitako iritzi eta ikuspegiei buruzko oharra ere gehitzen zaio bukaeran bertsio berriari. Bertsio honi, OSIk "BSD lizentzia sinplifikatua" deritzo.

Copyright <urtea> <copyright jabea(k)>. 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 <COPYRIGHT JABEA(K)> ``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> 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.

The views and conclusions contained in the software and documentation are those of the
authors and should not be interpreted as representing official policies, either expressed
or implied, of <copyright jabea(k)>.

BSD lizentziak, jabedun erabilpena baimentzen du, baita lizentzia honen pean askaturiko softwarea produktu jabedunetan txertatzea ere. Material horretan oinarrituriko lanak lizentzia jabedun baten pean kaleratu daiteke. Hau da produktu jabedunetan BSD kode zatien erabilpen handiaren arrazoia, esate baterako, Mac OS Xen kasuan.

Posiblea da produktu bati BSD lizentzia bat eta beste lizentziaren bat esleitzea.