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Changes between Initial Version and Version 1 of License


Ignore:
Timestamp:
2015-01-02T11:22:55Z (6 years ago)
Author:
Jakub Jermář
Comment:

Bring over the licensing page from our web.

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  • License

    v1 v1  
     1= License =
     2
     3HelenOS project comprises of several pieces of software. Most of the pieces were originally written by the HelenOS project developers themselves. These include the build system, the boot infrastructure, the kernel and the userpace servers, drivers, libraries and applications. However, there are also some parts that were imported from other free software/open source projects. Those are namely GRUB, SILO and Yaboot boot loaders, and the BSD Tetris.
     4
     5See the list below for precise information about licensing terms of each particular component of the HelenOS operating system.
     6
     7== Original code ==
     8
     9This is a file-based license. Consult the file in question for specific copyright holder and year.
     10
     11{{{
     12Copyright (C) <year> <author>
     13All rights reserved.
     14
     15Redistribution and use in source and binary forms, with or without
     16modification, are permitted provided that the following conditions
     17are met:
     18 
     19 - Redistributions of source code must retain the above copyright
     20   notice, this list of conditions and the following disclaimer.
     21 - Redistributions in binary form must reproduce the above copyright
     22   notice, this list of conditions and the following disclaimer in the
     23   documentation and/or other materials provided with the distribution.
     24 - The name of the author may not be used to endorse or promote products
     25   derived from this software without specific prior written permission.
     26
     27 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     28 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     29 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     30 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     31 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     32 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     36 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     37}}}
     38
     39== Third party software: GRUB, SILO and Yaboot (unmodified binaries) ==
     40
     41{{{
     42                    GNU GENERAL PUBLIC LICENSE
     43                       Version 2, June 1991
     44
     45 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
     46     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     47 Everyone is permitted to copy and distribute verbatim copies
     48 of this license document, but changing it is not allowed.
     49
     50                            Preamble
     51
     52  The licenses for most software are designed to take away your
     53freedom to share and change it.  By contrast, the GNU General Public
     54License is intended to guarantee your freedom to share and change free
     55software--to make sure the software is free for all its users.  This
     56General Public License applies to most of the Free Software
     57Foundation's software and to any other program whose authors commit to
     58using it.  (Some other Free Software Foundation software is covered by
     59the GNU Library General Public License instead.)  You can apply it to
     60your programs, too.
     61
     62  When we speak of free software, we are referring to freedom, not
     63price.  Our General Public Licenses are designed to make sure that you
     64have the freedom to distribute copies of free software (and charge for
     65this service if you wish), that you receive source code or can get it
     66if you want it, that you can change the software or use pieces of it
     67in new free programs; and that you know you can do these things.
     68
     69  To protect your rights, we need to make restrictions that forbid
     70anyone to deny you these rights or to ask you to surrender the rights.
     71These restrictions translate to certain responsibilities for you if you
     72distribute copies of the software, or if you modify it.
     73
     74  For example, if you distribute copies of such a program, whether
     75gratis or for a fee, you must give the recipients all the rights that
     76you have.  You must make sure that they, too, receive or can get the
     77source code.  And you must show them these terms so they know their
     78rights.
     79
     80  We protect your rights with two steps: (1) copyright the software, and
     81(2) offer you this license which gives you legal permission to copy,
     82distribute and/or modify the software.
     83
     84  Also, for each author's protection and ours, we want to make certain
     85that everyone understands that there is no warranty for this free
     86software.  If the software is modified by someone else and passed on, we
     87want its recipients to know that what they have is not the original, so
     88that any problems introduced by others will not reflect on the original
     89authors' reputations.
     90
     91  Finally, any free program is threatened constantly by software
     92patents.  We wish to avoid the danger that redistributors of a free
     93program will individually obtain patent licenses, in effect making the
     94program proprietary.  To prevent this, we have made it clear that any
     95patent must be licensed for everyone's free use or not licensed at all.
     96
     97  The precise terms and conditions for copying, distribution and
     98modification follow.
     99
     100                    GNU GENERAL PUBLIC LICENSE
     101   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
     102
     103  0. This License applies to any program or other work which contains
     104a notice placed by the copyright holder saying it may be distributed
     105under the terms of this General Public License.  The "Program", below,
     106refers to any such program or work, and a "work based on the Program"
     107means either the Program or any derivative work under copyright law:
     108that is to say, a work containing the Program or a portion of it,
     109either verbatim or with modifications and/or translated into another
     110language.  (Hereinafter, translation is included without limitation in
     111the term "modification".)  Each licensee is addressed as "you".
     112
     113Activities other than copying, distribution and modification are not
     114covered by this License; they are outside its scope.  The act of
     115running the Program is not restricted, and the output from the Program
     116is covered only if its contents constitute a work based on the
     117Program (independent of having been made by running the Program).
     118Whether that is true depends on what the Program does.
     119
     120  1. You may copy and distribute verbatim copies of the Program's
     121source code as you receive it, in any medium, provided that you
     122conspicuously and appropriately publish on each copy an appropriate
     123copyright notice and disclaimer of warranty; keep intact all the
     124notices that refer to this License and to the absence of any warranty;
     125and give any other recipients of the Program a copy of this License
     126along with the Program.
     127
     128You may charge a fee for the physical act of transferring a copy, and
     129you may at your option offer warranty protection in exchange for a fee.
     130
     131  2. You may modify your copy or copies of the Program or any portion
     132of it, thus forming a work based on the Program, and copy and
     133distribute such modifications or work under the terms of Section 1
     134above, provided that you also meet all of these conditions:
     135
     136    a) You must cause the modified files to carry prominent notices
     137    stating that you changed the files and the date of any change.
     138
     139    b) You must cause any work that you distribute or publish, that in
     140    whole or in part contains or is derived from the Program or any
     141    part thereof, to be licensed as a whole at no charge to all third
     142    parties under the terms of this License.
     143
     144    c) If the modified program normally reads commands interactively
     145    when run, you must cause it, when started running for such
     146    interactive use in the most ordinary way, to print or display an
     147    announcement including an appropriate copyright notice and a
     148    notice that there is no warranty (or else, saying that you provide
     149    a warranty) and that users may redistribute the program under
     150    these conditions, and telling the user how to view a copy of this
     151    License.  (Exception: if the Program itself is interactive but
     152    does not normally print such an announcement, your work based on
     153    the Program is not required to print an announcement.)
     154
     155These requirements apply to the modified work as a whole.  If
     156identifiable sections of that work are not derived from the Program,
     157and can be reasonably considered independent and separate works in
     158themselves, then this License, and its terms, do not apply to those
     159sections when you distribute them as separate works.  But when you
     160distribute the same sections as part of a whole which is a work based
     161on the Program, the distribution of the whole must be on the terms of
     162this License, whose permissions for other licensees extend to the
     163entire whole, and thus to each and every part regardless of who wrote it.
     164
     165Thus, it is not the intent of this section to claim rights or contest
     166your rights to work written entirely by you; rather, the intent is to
     167exercise the right to control the distribution of derivative or
     168collective works based on the Program.
     169
     170In addition, mere aggregation of another work not based on the Program
     171with the Program (or with a work based on the Program) on a volume of
     172a storage or distribution medium does not bring the other work under
     173the scope of this License.
     174
     175  3. You may copy and distribute the Program (or a work based on it,
     176under Section 2) in object code or executable form under the terms of
     177Sections 1 and 2 above provided that you also do one of the following:
     178
     179    a) Accompany it with the complete corresponding machine-readable
     180    source code, which must be distributed under the terms of Sections
     181    1 and 2 above on a medium customarily used for software interchange; or,
     182
     183    b) Accompany it with a written offer, valid for at least three
     184    years, to give any third party, for a charge no more than your
     185    cost of physically performing source distribution, a complete
     186    machine-readable copy of the corresponding source code, to be
     187    distributed under the terms of Sections 1 and 2 above on a medium
     188    customarily used for software interchange; or,
     189
     190    c) Accompany it with the information you received as to the offer
     191    to distribute corresponding source code.  (This alternative is
     192    allowed only for noncommercial distribution and only if you
     193    received the program in object code or executable form with such
     194    an offer, in accord with Subsection b above.)
     195
     196The source code for a work means the preferred form of the work for
     197making modifications to it.  For an executable work, complete source
     198code means all the source code for all modules it contains, plus any
     199associated interface definition files, plus the scripts used to
     200control compilation and installation of the executable.  However, as a
     201special exception, the source code distributed need not include
     202anything that is normally distributed (in either source or binary
     203form) with the major components (compiler, kernel, and so on) of the
     204operating system on which the executable runs, unless that component
     205itself accompanies the executable.
     206
     207If distribution of executable or object code is made by offering
     208access to copy from a designated place, then offering equivalent
     209access to copy the source code from the same place counts as
     210distribution of the source code, even though third parties are not
     211compelled to copy the source along with the object code.
     212
     213  4. You may not copy, modify, sublicense, or distribute the Program
     214except as expressly provided under this License.  Any attempt
     215otherwise to copy, modify, sublicense or distribute the Program is
     216void, and will automatically terminate your rights under this License.
     217However, parties who have received copies, or rights, from you under
     218this License will not have their licenses terminated so long as such
     219parties remain in full compliance.
     220
     221  5. You are not required to accept this License, since you have not
     222signed it.  However, nothing else grants you permission to modify or
     223distribute the Program or its derivative works.  These actions are
     224prohibited by law if you do not accept this License.  Therefore, by
     225modifying or distributing the Program (or any work based on the
     226Program), you indicate your acceptance of this License to do so, and
     227all its terms and conditions for copying, distributing or modifying
     228the Program or works based on it.
     229
     230  6. Each time you redistribute the Program (or any work based on the
     231Program), the recipient automatically receives a license from the
     232original licensor to copy, distribute or modify the Program subject to
     233these terms and conditions.  You may not impose any further
     234restrictions on the recipients' exercise of the rights granted herein.
     235You are not responsible for enforcing compliance by third parties to
     236this License.
     237
     238  7. If, as a consequence of a court judgment or allegation of patent
     239infringement or for any other reason (not limited to patent issues),
     240conditions are imposed on you (whether by court order, agreement or
     241otherwise) that contradict the conditions of this License, they do not
     242excuse you from the conditions of this License.  If you cannot
     243distribute so as to satisfy simultaneously your obligations under this
     244License and any other pertinent obligations, then as a consequence you
     245may not distribute the Program at all.  For example, if a patent
     246license would not permit royalty-free redistribution of the Program by
     247all those who receive copies directly or indirectly through you, then
     248the only way you could satisfy both it and this License would be to
     249refrain entirely from distribution of the Program.
     250
     251If any portion of this section is held invalid or unenforceable under
     252any particular circumstance, the balance of the section is intended to
     253apply and the section as a whole is intended to apply in other
     254circumstances.
     255
     256It is not the purpose of this section to induce you to infringe any
     257patents or other property right claims or to contest validity of any
     258such claims; this section has the sole purpose of protecting the
     259integrity of the free software distribution system, which is
     260implemented by public license practices.  Many people have made
     261generous contributions to the wide range of software distributed
     262through that system in reliance on consistent application of that
     263system; it is up to the author/donor to decide if he or she is willing
     264to distribute software through any other system and a licensee cannot
     265impose that choice.
     266
     267This section is intended to make thoroughly clear what is believed to
     268be a consequence of the rest of this License.
     269
     270  8. If the distribution and/or use of the Program is restricted in
     271certain countries either by patents or by copyrighted interfaces, the
     272original copyright holder who places the Program under this License
     273may add an explicit geographical distribution limitation excluding
     274those countries, so that distribution is permitted only in or among
     275countries not thus excluded.  In such case, this License incorporates
     276the limitation as if written in the body of this License.
     277
     278  9. The Free Software Foundation may publish revised and/or new versions
     279of the General Public License from time to time.  Such new versions will
     280be similar in spirit to the present version, but may differ in detail to
     281address new problems or concerns.
     282
     283Each version is given a distinguishing version number.  If the Program
     284specifies a version number of this License which applies to it and "any
     285later version", you have the option of following the terms and conditions
     286either of that version or of any later version published by the Free
     287Software Foundation.  If the Program does not specify a version number of
     288this License, you may choose any version ever published by the Free Software
     289Foundation.
     290
     291  10. If you wish to incorporate parts of the Program into other free
     292programs whose distribution conditions are different, write to the author
     293to ask for permission.  For software which is copyrighted by the Free
     294Software Foundation, write to the Free Software Foundation; we sometimes
     295make exceptions for this.  Our decision will be guided by the two goals
     296of preserving the free status of all derivatives of our free software and
     297of promoting the sharing and reuse of software generally.
     298
     299                            NO WARRANTY
     300
     301  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
     302FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
     303OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
     304PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
     305OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     306MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
     307TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
     308PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
     309REPAIR OR CORRECTION.
     310
     311  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
     312WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
     313REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
     314INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
     315OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
     316TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
     317YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
     318PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
     319POSSIBILITY OF SUCH DAMAGES.
     320
     321                     END OF TERMS AND CONDITIONS
     322
     323            How to Apply These Terms to Your New Programs
     324
     325  If you develop a new program, and you want it to be of the greatest
     326possible use to the public, the best way to achieve this is to make it
     327free software which everyone can redistribute and change under these terms.
     328
     329  To do so, attach the following notices to the program.  It is safest
     330to attach them to the start of each source file to most effectively
     331convey the exclusion of warranty; and each file should have at least
     332the "copyright" line and a pointer to where the full notice is found.
     333
     334    <one line to give the program's name and a brief idea of what it does.>
     335    Copyright (C) <year>  <name of author>
     336
     337    This program is free software; you can redistribute it and/or modify
     338    it under the terms of the GNU General Public License as published by
     339    the Free Software Foundation; either version 2 of the License, or
     340    (at your option) any later version.
     341
     342    This program is distributed in the hope that it will be useful,
     343    but WITHOUT ANY WARRANTY; without even the implied warranty of
     344    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     345    GNU General Public License for more details.
     346
     347    You should have received a copy of the GNU General Public License
     348    along with this program; if not, write to the Free Software
     349    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     350
     351
     352Also add information on how to contact you by electronic and paper mail.
     353
     354If the program is interactive, make it output a short notice like this
     355when it starts in an interactive mode:
     356
     357    Gnomovision version 69, Copyright (C) year  name of author
     358    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
     359    This is free software, and you are welcome to redistribute it
     360    under certain conditions; type `show c' for details.
     361
     362The hypothetical commands `show w' and `show c' should show the appropriate
     363parts of the General Public License.  Of course, the commands you use may
     364be called something other than `show w' and `show c'; they could even be
     365mouse-clicks or menu items--whatever suits your program.
     366
     367You should also get your employer (if you work as a programmer) or your
     368school, if any, to sign a "copyright disclaimer" for the program, if
     369necessary.  Here is a sample; alter the names:
     370
     371  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
     372  `Gnomovision' (which makes passes at compilers) written by James Hacker.
     373
     374  <signature of Ty Coon>, 1 April 1989
     375  Ty Coon, President of Vice
     376
     377This General Public License does not permit incorporating your program into
     378proprietary programs.  If your program is a subroutine library, you may
     379consider it more useful to permit linking proprietary applications with the
     380library.  If this is what you want to do, use the GNU Library General
     381Public License instead of this License.
     382}}}