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22 KiB
Plaintext
420 lines
22 KiB
Plaintext
Valid-License-Identifier: GPL-2.0-only
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Valid-License-Identifier: GPL-2.0
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Valid-License-Identifier: GPL-2.0-or-later
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Valid-License-Identifier: GPL-2.0+
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SPDX-URL: https://spdx.org/licenses/GPL-2.0.html
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Usage-Guide:
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To use this license in source code, put one of the following SPDX
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tag/value pairs into a comment according to the placement
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guidelines in the licensing rules documentation.
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For 'GNU General Public License (GPL) version 2 only' use:
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SPDX-License-Identifier: GPL-2.0-only
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For 'GNU General Public License (GPL) version 2 or any later version' use:
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SPDX-License-Identifier: GPL-2.0-or-later
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License-Text:
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GNU GENERAL PUBLIC LICENSE
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Version 2, June 1991
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Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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The licenses for most software are designed to take away your
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freedom to share and change it. By contrast, the GNU General Public
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License is intended to guarantee your freedom to share and change free
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software--to make sure the software is free for all its users. This
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General Public License applies to most of the Free Software
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Foundation's software and to any other program whose authors commit to
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using it. (Some other Free Software Foundation software is covered by
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the GNU Library General Public License instead.) You can apply it to
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your programs, too.
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When we speak of free software, we are referring to freedom, not
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price. Our General Public Licenses are designed to make sure that you
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have the freedom to distribute copies of free software (and charge for
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them if you wish), that you receive source code or can get it if you
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want it, that you can change the software or use pieces of it in new
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free programs, and that you know you can do these things.
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To protect your rights, we need to prevent others from denying you
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these rights or asking you to surrender the rights. Therefore, you have
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certain responsibilities if you distribute copies of the software, or if
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you modify it: responsibilities to respect the freedom of others.
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For example, if you distribute copies of such a program, whether
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gratis or for a fee, you must pass on to the recipients the same
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freedoms that you received. You must make sure that they, too, receive
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or can get the source code. And you must show them these terms so they
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know their rights.
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Developers that use the GNU GPL protect your rights with two steps:
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(1) assert copyright on the software, and (2) offer you this License
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giving you legal permission to copy, distribute and/or modify it.
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For the developers' and authors' protection, the GPL clearly explains
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that there is no warranty for this free software. For both users' and
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authors' sake, the GPL requires that modified versions be marked as
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changed, so that their problems will not be attributed erroneously to
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authors of previous versions.
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Some devices are designed to deny users access to install or run
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modified versions of the software inside them, although the manufacturer
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can do so. This is fundamentally incompatible with the aim of
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protecting users' freedom to change the software. The systematic
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pattern of such abuse occurs in the area of products for individuals to
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use, which is precisely where it is most unacceptable. Therefore, we
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have designed this version of the GPL to prohibit the practice for those
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products. If such problems arise substantially in other domains, we
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stand ready to extend this provision to those domains in future versions
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of the GPL, as needed to protect the freedom of users.
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Finally, every program is threatened constantly by software patents.
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States should not allow patents to restrict development and use of
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software on general-purpose computers, but in those that do, we wish to
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avoid the special danger that patents applied to a free program could
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make it effectively proprietary. To prevent this, the GPL assures that
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patents cannot be used to render the program non-free.
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The precise terms and conditions for copying, distribution and
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modification follow.
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GNU GENERAL PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. This License applies to any program or other work which contains
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a notice placed by the copyright holder saying it may be distributed
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under the terms of this General Public License. The "Program", below,
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refers to any such program or work, and a "work based on the Program"
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means either the Program or any derivative work under copyright law:
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that is to say, a work containing the Program or a portion of it,
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either verbatim or with modifications and/or translated into another
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language. (Hereinafter, translation is included without limitation in
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the term "modification".) Each licensee is addressed as "you".
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Activities other than copying, distribution and modification are not
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covered by this License; they are outside its scope. The act of
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running the Program is not restricted, and the output from the Program
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is covered only if its contents constitute a work based on the
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Program (independent of having been made by running the Program).
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Whether that is true depends on what the Program does.
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1. You may copy and distribute verbatim copies of the Program's
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source code as you receive it, in any medium, provided that you
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conspicuously and appropriately publish on each copy an appropriate
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copyright notice and disclaimer of warranty; keep intact all the
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notices that refer to this License and to the absence of any warranty;
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and give any other recipients of the Program a copy of this License
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along with the Program.
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You may charge a fee for the physical act of transferring a copy, and
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you may at your option offer warranty protection in exchange for a fee.
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2. You may modify your copy or copies of the Program or any portion
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of it, thus forming a work based on the Program, and copy and
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distribute such modifications or work under the terms of Section 1
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above, provided that you also meet all of these conditions:
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a) You must cause the modified files to carry prominent notices
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stating that you changed the files and the date of any change.
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b) You must cause any work that you distribute or publish, that in
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whole or in part contains or is derived from the Program or any
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part thereof, to be licensed as a whole at no charge to all third
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parties under the terms of this License.
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c) If the modified program normally reads commands interactively
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when run, you must cause it, when started running for such
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interactive use in the most ordinary way, to print or display an
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announcement including an appropriate copyright notice and a
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notice that there is no warranty (or else, saying that you provide
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a warranty) and that users may redistribute the program under
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||
these conditions, and telling the user how to view a copy of this
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||
License. (Exception: if the Program itself is interactive but
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does not normally print such an announcement, your work based on
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the Program is not required to print an announcement.)
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These requirements apply to the modified work as a whole. If
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identifiable sections of that work are not derived from the Program,
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and can be reasonably considered independent and separate works in
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themselves, then this License, and its terms, do not apply to those
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sections when you distribute them as separate works. But when you
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distribute the same sections as part of a whole which is a work based
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on the Program, the distribution of the whole must be on the terms of
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this License, whose permissions for other licensees extend to the
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entire whole, and thus to each and every part regardless of who wrote it.
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Thus, it is not the intent of this section to claim rights or contest
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your rights to work written entirely by you; rather, the intent is to
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exercise the right to control the distribution of derivative or
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collective works based on the Program.
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In addition, mere aggregation of another work not based on the Program
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with the Program (or with a work based on the Program) on a volume of
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a storage or distribution medium does not bring the other work under
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the scope of this License.
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3. You may copy and distribute the Program (or a work based on it,
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under Section 2) in object code or executable form under the terms of
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Sections 1 and 2 above provided that you also do one of the following:
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a) Accompany it with the complete corresponding machine-readable
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source code, which must be distributed under the terms of Sections
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1 and 2 above on a medium customarily used for software interchange; or,
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b) Accompany it with a written offer, valid for at least three
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||
years, to give any third party, for a charge no more than your
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cost of physically performing source distribution, a complete
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machine-readable copy of the corresponding source code, to be
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distributed under the terms of Sections 1 and 2 above on a medium
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customarily used for software interchange; or,
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c) Accompany it with the information you received as to the offer
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to distribute corresponding source code. (This alternative is
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||
allowed only for noncommercial distribution and only if you
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received the program in object code or executable form with such
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an offer, in accord with Subsection b above.)
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||
The source code for a work means the preferred form of the work for
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making modifications to it. For an executable work, complete source
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code means all the source code for all modules it contains, plus any
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associated interface definition files, plus the scripts used to
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control compilation and installation of the executable. However, as a
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special exception, the source code distributed need not include
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anything that is normally distributed (in either source or binary
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form) with the major components (compiler, kernel, and so on) of the
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operating system on which the executable runs, unless that component
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itself accompanies the executable.
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If distribution of executable or object code is made by offering
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access to copy from a designated place, then offering equivalent
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access to copy the source code from the same place counts as
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distribution of the source code, even though third parties are not
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compelled to copy the source along with the object code.
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4. You may not copy, modify, sublicense, or distribute the Program
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except as expressly provided under this License. Any attempt
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otherwise to copy, modify, sublicense or distribute the Program is
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void, and will automatically terminate your rights under this License.
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However, parties who have received copies, or rights, from you under
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this License will not have their licenses terminated so long as such
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parties remain in full compliance.
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5. You are not required to accept this License, since you have not
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signed it. However, nothing else grants you permission to modify or
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distribute the Program or its derivative works. These actions are
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prohibited by law if you do not accept this License. Therefore, by
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modifying or distributing the Program (or any work based on the
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Program), you indicate your acceptance of this License to do so, and
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all its terms and conditions for copying, distributing or modifying
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the Program or works based on it.
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6. Each time you redistribute the Program (or any work based on the
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Program), the recipient automatically receives a license from the
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original licensor to copy, distribute or modify the Program subject to
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these terms and conditions. You may not impose any further
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restrictions on the recipients' exercise of the rights granted herein.
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You are not responsible for enforcing compliance by third parties to
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this License.
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Each contributor grants you a non-exclusive, worldwide, royalty-free
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patent license under the contributor's essential patent claims, to
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make, use, sell, offer for sale, import and otherwise run, modify and
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propagate the contents of its contributor version.
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In the following three paragraphs, a "patent license" is any express
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agreement or commitment, however denominated, not to enforce a patent
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(such as an express permission to practice a patent or covenant not to
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sue for patent infringement). To "grant" such a patent license to a
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party means to make such an agreement or commitment not to enforce a
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patent against the party.
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If you convey a covered work, knowingly relying on a patent license,
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and the Corresponding Source of the work is not available for anyone
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to copy, free of charge and under the terms of this License, through a
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publicly available network server or other readily accessible means,
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then you must either (1) cause the Corresponding Source to be so
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available, or (2) arrange to deprive yourself of the benefit of the
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patent license for this particular work, or (3) arrange, in a manner
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consistent with the requirements of this License, to extend the patent
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license to downstream recipients. "Knowingly relying" means you have
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actual knowledge that, but for the patent license, your conveying the
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covered work in a country, or your recipient's use of the covered work
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in a country, would infringe one or more identifiable patents in that
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country that you have reason to believe are valid.
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||
If, pursuant to or in connection with a single transaction or
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arrangement, you convey, or propagate by procuring conveyance of, a
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covered work, and grant a patent license to some of the parties
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receiving the covered work authorizing them to use, propagate, modify
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or convey a specific copy of the covered work, then the patent license
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you grant is automatically extended to all recipients of the covered
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work and works based on it.
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||
A patent license is "discriminatory" if it does not include within
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the scope of its coverage, prohibits the exercise of, or is
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conditioned on the non-exercise of one or more of the rights that are
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specifically granted under this License. You may not convey a covered
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work if you are a party to an arrangement with a third party that is
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in the business of distributing software, under which you make payment
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to the third party based on the extent of your activity of conveying
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the work, and under which the third party grants, to any of the
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parties who would receive the covered work from you, a discriminatory
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patent license (a) in connection with copies of the covered work
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conveyed by you (or copies made from those copies), or (b) primarily
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for and in connection with specific products or compilations that
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contain the covered work, unless you entered into that arrangement,
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or that patent license was granted, prior to 28 March 2007.
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Nothing in this License shall be construed as excluding or limiting
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any implied license or other defenses to infringement that may
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otherwise be available to you under applicable patent law.
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12. No Surrender of Others' Freedom.
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If conditions are imposed on you (whether by court order, agreement or
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||
otherwise) that contradict the conditions of this License, they do not
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||
excuse you from the conditions of this License. If you cannot
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||
distribute so as to satisfy simultaneously your obligations under this
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||
License and any other pertinent obligations, then as a consequence you
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||
may not distribute the Program at all. For example, if a patent
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||
license would not permit royalty-free redistribution of the Program by
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all those who receive copies directly or indirectly through you, then
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||
the only way you could satisfy both it and this License would be to
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||
refrain entirely from distribution of the Program.
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If any portion of this section is held invalid or unenforceable under
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||
any particular circumstance, the balance of the section is intended to
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||
apply and the section as a whole is intended to apply in other
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||
circumstances.
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It is not the purpose of this section to induce you to infringe any
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patents or other property right claims or to contest validity of any
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such claims; this section has the sole purpose of protecting the
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||
integrity of the free software distribution system, which is
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implemented by public license practices. Many people have made
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||
generous contributions to the wide range of software distributed
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||
through that system in reliance on consistent application of that
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||
system; it is up to the author/donor to decide if he or she is willing
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||
to distribute software through any other system and a licensee cannot
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impose that choice.
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This section is intended to make thoroughly clear what is believed to
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||
be a consequence of the rest of this License.
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8. If the distribution and/or use of the Program is restricted in
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||
certain countries either by patents or by copyrighted interfaces, the
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original copyright holder who places the Program under this License
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||
may add an explicit geographical distribution limitation excluding
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||
those countries, so that distribution is permitted only in or among
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countries not thus excluded. In such case, this License incorporates
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the limitation as if written in the body of this License.
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9. The Free Software Foundation may publish revised and/or new versions
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of the General Public License from time to time. Such new versions will
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||
be similar in spirit to the present version, but may differ in detail to
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||
address new problems or concerns.
|
||
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||
Each version is given a distinguishing version number. If the Program
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||
specifies a version number of this License which applies to it and "any
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||
later version", you have the option of following the terms and conditions
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||
either of that version or of any later version published by the Free
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||
Software Foundation. If the Program does not specify a version number of
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||
this License, you may choose any version ever published by the Free Software
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Foundation.
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10. If you wish to incorporate parts of the Program into other free
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programs whose distribution conditions are different, write to the author
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||
to ask for permission. For software which is copyrighted by the Free
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||
Software Foundation, write to the Free Software Foundation; we sometimes
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||
make exceptions for this. Our decision will be guided by the two goals
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||
of preserving the free status of all derivatives of our free software and
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||
of promoting the sharing and reuse of software generally.
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NO WARRANTY
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11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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||
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
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||
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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||
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
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||
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
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||
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
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PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
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||
REPAIR OR CORRECTION.
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12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
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||
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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||
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
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||
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
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||
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||
POSSIBILITY OF SUCH DAMAGES.
|
||
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END OF TERMS AND CONDITIONS
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||
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||
How to Apply These Terms to Your New Programs
|
||
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||
If you develop a new program, and you want it to be of the greatest
|
||
possible use to the public, the best way to achieve this is to make it
|
||
free software which everyone can redistribute and change under these terms.
|
||
|
||
To do so, attach the following notices to the program. It is safest
|
||
to attach them to the start of each source file to most effectively
|
||
state the exclusion of warranty; and each file should have at least
|
||
the "copyright" line and a pointer to where the full notice is found.
|
||
|
||
<one line to give the program's name and a brief idea of what it does.>
|
||
Copyright (C) <year> <name of author>
|
||
|
||
This program is free software: you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation, either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
||
|
||
Also add information on how to contact you by electronic and paper mail.
|
||
|
||
If the program does terminal interaction, make it output a short
|
||
notice like this when it starts in an interactive mode:
|
||
|
||
<program> Copyright (C) <year> <name of author>
|
||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||
This is free software, and you are welcome to redistribute it
|
||
under certain conditions; type `show c' for details.
|
||
|
||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||
parts of the General Public License. Of course, the commands you use may
|
||
be called something other than `show w' and `show c'; they could even be
|
||
mouse-clicks or menu items--whatever suits your program.
|
||
|
||
You should also get your employer (if you work as a programmer) or your
|
||
school, if any, to sign a "copyright disclaimer" for the program, if
|
||
necessary. Here is a sample; alter the names:
|
||
|
||
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||
|
||
<signature of Ty Coon>, 1 April 1989
|
||
Ty Coon, President of Vice
|
||
|
||
This General Public License does not permit incorporating your program into
|
||
proprietary programs. If your program is a subroutine library, you may
|
||
consider it more useful to permit linking proprietary applications with the
|
||
library. If this is what you want to do, use the GNU Library General
|
||
Public License instead of this License.
|