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GNU GENERAL PUBLIC LICENSE |
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Version 3, 29 June 2007 |
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Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/> |
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Everyone is permitted to copy and distribute verbatim copies of this license |
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document, but changing it is not allowed. |
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Preamble |
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The GNU General Public License is a free, copyleft license for software and |
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other kinds of works. |
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The licenses for most software and other practical works are designed to take |
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away your freedom to share and change the works. By contrast, the GNU General |
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Public License is intended to guarantee your freedom to share and change all |
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versions of a program--to make sure it remains free software for all its users. |
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We, the Free Software Foundation, use the GNU General Public License for most |
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of our software; it applies also to any other work released this way by its |
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authors. You can apply it to your programs, too. |
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When we speak of free software, we are referring to freedom, not price. Our |
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General Public Licenses are designed to make sure that you have the freedom |
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to distribute copies of free software (and charge for them if you wish), that |
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you receive source code or can get it if you want it, that you can change |
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the software or use pieces of it in new free programs, and that you know you |
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can do these things. |
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To protect your rights, we need to prevent others from denying you these rights |
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or asking you to surrender the rights. Therefore, you have certain responsibilities |
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if you distribute copies of the software, or if you modify it: responsibilities |
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to respect the freedom of others. |
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For example, if you distribute copies of such a program, whether gratis or |
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You must make sure that they, too, receive or can get the source code. And |
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you must show them these terms so they know their rights. |
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Developers that use the GNU GPL protect your rights with two steps: (1) assert |
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For the developers' and authors' protection, the GPL clearly explains that |
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Some devices are designed to deny users access to install or run modified |
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This is fundamentally incompatible with the aim of protecting users' freedom |
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versions of the GPL, as needed to protect the freedom of users. |
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Finally, every program is threatened constantly by software patents. States |
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The precise terms and conditions for copying, distribution and modification |
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TERMS AND CONDITIONS |
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0. Definitions. |
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"This License" refers to version 3 of the GNU General Public License. |
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"Copyright" also means copyright-like laws that apply to other kinds of works, |
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such as semiconductor masks. |
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"The Program" refers to any copyrightable work licensed under this License. |
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To "modify" a work means to copy from or adapt all or part of the work in |
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A "covered work" means either the unmodified Program or a work based on the |
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To "propagate" a work means to do anything with it that, without permission, |
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Propagation includes copying, distribution (with or without modification), |
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To "convey" a work means any kind of propagation that enables other parties |
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The "System Libraries" of an executable work include anything, other than |
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The Corresponding Source need not include anything that users can regenerate |
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The Corresponding Source for a work in source code form is that same work. |
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All rights granted under this License are granted for the term of copyright |
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This License explicitly affirms your unlimited permission to run the unmodified |
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You may make, run and propagate covered works that you do not convey, without |
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Conveying under any other circumstances is permitted solely under the conditions |
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No covered work shall be deemed part of an effective technological measure |
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When you convey a covered work, you waive any legal power to forbid circumvention |
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You may convey verbatim copies of the Program's source code as you receive |
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You may convey a work based on the Program, or the modifications to produce |
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c) You must license the entire work, as a whole, under this License to anyone |
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d) If the work has interactive user interfaces, each must display Appropriate |
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A compilation of a covered work with other separate and independent works, |
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You may convey a covered work in object code form under the terms of sections |
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a) Convey the object code in, or embodied in, a physical product (including |
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b) Convey the object code in, or embodied in, a physical product (including |
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d) Convey the object code by offering access from a designated place (gratis |
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e) Convey the object code using peer-to-peer transmission, provided you inform |
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A separable portion of the object code, whose source code is excluded from |
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A "User Product" is either (1) a "consumer product", which means any tangible |
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In determining whether a product is a consumer product, doubtful cases shall |
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"Installation Information" for a User Product means any methods, procedures, |
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If you convey an object code work under this section in, or with, or specifically |
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The requirement to provide Installation Information does not include a requirement |
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to continue to provide support service, warranty, or updates for a work that |
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Corresponding Source conveyed, and Installation Information provided, in accord |
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no special password or key for unpacking, reading or copying. |
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7. Additional Terms. |
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"Additional permissions" are terms that supplement the terms of this License |
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by making exceptions from one or more of its conditions. Additional permissions |
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that are applicable to the entire Program shall be treated as though they |
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were included in this License, to the extent that they are valid under applicable |
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law. If additional permissions apply only to part of the Program, that part |
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governed by this License without regard to the additional permissions. |
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When you convey a copy of a covered work, you may at your option remove any |
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permissions may be written to require their own removal in certain cases when |
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you modify the work.) You may place additional permissions on material, added |
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by you to a covered work, for which you have or can give appropriate copyright |
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permission. |
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Notwithstanding any other provision of this License, for material you add |
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to a covered work, you may (if authorized by the copyright holders of that |
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material) supplement the terms of this License with terms: |
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a) Disclaiming warranty or limiting liability differently from the terms of |
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sections 15 and 16 of this License; or |
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b) Requiring preservation of specified reasonable legal notices or author |
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attributions in that material or in the Appropriate Legal Notices displayed |
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All other non-permissive additional terms are considered "further restrictions" |
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within the meaning of section 10. If the Program as you received it, or any |
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along with a term that is a further restriction, you may remove that term. |
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If a license document contains a further restriction but permits relicensing |
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or conveying under this License, you may add to a covered work material governed |
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If you add terms to a covered work in accord with this section, you must place, |
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Additional terms, permissive or non-permissive, may be stated in the form |
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apply either way. |
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8. Termination. |
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You may not propagate or modify a covered work except as expressly provided |
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under this License. Any attempt otherwise to propagate or modify it is void, |
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and will automatically terminate your rights under this License (including |
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any patent licenses granted under the third paragraph of section 11). |
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However, if you cease all violation of this License, then your license from |
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until the copyright holder explicitly and finally terminates your license, |
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and (b) permanently, if the copyright holder fails to notify you of the violation |
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by some reasonable means prior to 60 days after the cessation. |
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Moreover, your license from a particular copyright holder is reinstated permanently |
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if the copyright holder notifies you of the violation by some reasonable means, |
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this is the first time you have received notice of violation of this License |
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(for any work) from that copyright holder, and you cure the violation prior |
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to 30 days after your receipt of the notice. |
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Termination of your rights under this section does not terminate the licenses |
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of parties who have received copies or rights from you under this License. |
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If your rights have been terminated and not permanently reinstated, you do |
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not qualify to receive new licenses for the same material under section 10. |
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9. Acceptance Not Required for Having Copies. |
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You are not required to accept this License in order to receive or run a copy |
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of the Program. Ancillary propagation of a covered work occurring solely as |
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a consequence of using peer-to-peer transmission to receive a copy likewise |
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does not require acceptance. However, nothing other than this License grants |
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you permission to propagate or modify any covered work. These actions infringe |
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copyright if you do not accept this License. Therefore, by modifying or propagating |
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10. Automatic Licensing of Downstream Recipients. |
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Each time you convey a covered work, the recipient automatically receives |
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An "entity transaction" is a transaction transferring control of an organization, |
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Source of the work from the predecessor in interest, if the predecessor has |
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it or can get it with reasonable efforts. |
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You may not impose any further restrictions on the exercise of the rights |
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license fee, royalty, or other charge for exercise of rights granted under |
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or counterclaim in a lawsuit) alleging that any patent claim is infringed |
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by making, using, selling, offering for sale, or importing the Program or |
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any portion of it. |
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11. Patents. |
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||||
A "contributor" is a copyright holder who authorizes use under this License |
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of the Program or a work on which the Program is based. The work thus licensed |
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is called the contributor's "contributor version". |
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A contributor's "essential patent claims" are all patent claims owned or controlled |
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be infringed by some manner, permitted by this License, of making, using, |
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infringed only as a consequence of further modification of the contributor |
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grant patent sublicenses in a manner consistent with the requirements of this |
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Each contributor grants you a non-exclusive, worldwide, royalty-free patent |
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license under the contributor's essential patent claims, to make, use, sell, |
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offer for sale, import and otherwise run, modify and propagate the contents |
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In the following three paragraphs, a "patent license" is any express agreement |
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or commitment, however denominated, not to enforce a patent (such as an express |
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To "grant" such a patent license to a party means to make such an agreement |
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or commitment not to enforce a patent against the party. |
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If you convey a covered work, knowingly relying on a patent license, and the |
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Corresponding Source of the work is not available for anyone to copy, free |
||||
of charge and under the terms of this License, through a publicly available |
||||
network server or other readily accessible means, then you must either (1) |
||||
cause the Corresponding Source to be so available, or (2) arrange to deprive |
||||
yourself of the benefit of the patent license for this particular work, or |
||||
(3) arrange, in a manner consistent with the requirements of this License, |
||||
to extend the patent license to downstream recipients. "Knowingly relying" |
||||
means you have actual knowledge that, but for the patent license, your conveying |
||||
the covered work in a country, or your recipient's use of the covered work |
||||
in a country, would infringe one or more identifiable patents in that country |
||||
that you have reason to believe are valid. |
||||
|
||||
If, pursuant to or in connection with a single transaction or arrangement, |
||||
you convey, or propagate by procuring conveyance of, a covered work, and grant |
||||
a patent license to some of the parties receiving the covered work authorizing |
||||
them to use, propagate, modify or convey a specific copy of the covered work, |
||||
then the patent license you grant is automatically extended to all recipients |
||||
of the covered work and works based on it. |
||||
|
||||
A patent license is "discriminatory" if it does not include within the scope |
||||
of its coverage, prohibits the exercise of, or is conditioned on the non-exercise |
||||
of one or more of the rights that are specifically granted under this License. |
||||
You may not convey a covered work if you are a party to an arrangement with |
||||
a third party that is in the business of distributing software, under which |
||||
you make payment to the third party based on the extent of your activity of |
||||
conveying the work, and under which the third party grants, to any of the |
||||
parties who would receive the covered work from you, a discriminatory patent |
||||
license (a) in connection with copies of the covered work conveyed by you |
||||
(or copies made from those copies), or (b) primarily for and in connection |
||||
with specific products or compilations that contain the covered work, unless |
||||
you entered into that arrangement, or that patent license was granted, prior |
||||
to 28 March 2007. |
||||
|
||||
Nothing in this License shall be construed as excluding or limiting any implied |
||||
license or other defenses to infringement that may otherwise be available |
||||
to you under applicable patent law. |
||||
|
||||
12. No Surrender of Others' Freedom. |
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or otherwise) |
||||
that contradict the conditions of this License, they do not excuse you from |
||||
the conditions of this License. If you cannot convey a covered work so as |
||||
to satisfy simultaneously your obligations under this License and any other |
||||
pertinent obligations, then as a consequence you may not convey it at all. |
||||
For example, if you agree to terms that obligate you to collect a royalty |
||||
for further conveying from those to whom you convey the Program, the only |
||||
way you could satisfy both those terms and this License would be to refrain |
||||
entirely from conveying the Program. |
||||
|
||||
13. Use with the GNU Affero General Public License. |
||||
|
||||
Notwithstanding any other provision of this License, you have permission to |
||||
link or combine any covered work with a work licensed under version 3 of the |
||||
GNU Affero General Public License into a single combined work, and to convey |
||||
the resulting work. The terms of this License will continue to apply to the |
||||
part which is the covered work, but the special requirements of the GNU Affero |
||||
General Public License, section 13, concerning interaction through a network |
||||
will apply to the combination as such. |
||||
|
||||
14. Revised Versions of this License. |
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of the |
||||
GNU General Public License from time to time. Such new versions will be similar |
||||
in spirit to the present version, but may differ in detail to address new |
||||
problems or concerns. |
||||
|
||||
Each version is given a distinguishing version number. If the Program specifies |
||||
that a certain numbered version of the GNU General Public License "or any |
||||
later version" applies to it, you have the option of following the terms and |
||||
conditions either of that numbered version or of any later version published |
||||
by the Free Software Foundation. If the Program does not specify a version |
||||
number of the GNU General Public License, you may choose any version ever |
||||
published by the Free Software Foundation. |
||||
|
||||
If the Program specifies that a proxy can decide which future versions of |
||||
the GNU General Public License can be used, that proxy's public statement |
||||
of acceptance of a version permanently authorizes you to choose that version |
||||
for the Program. |
||||
|
||||
Later license versions may give you additional or different permissions. However, |
||||
no additional obligations are imposed on any author or copyright holder as |
||||
a result of your choosing to follow a later version. |
||||
|
||||
15. Disclaimer of Warranty. |
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE |
||||
LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR |
||||
OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER |
||||
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||||
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS |
||||
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM |
||||
PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR |
||||
CORRECTION. |
||||
|
||||
16. Limitation of Liability. |
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL |
||||
ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM |
||||
AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, |
||||
INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO |
||||
USE THE PROGRAM (INCLUDING BUT NOT LIMITED 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 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER |
||||
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
||||
|
||||
17. Interpretation of Sections 15 and 16. |
||||
|
||||
If the disclaimer of warranty and limitation of liability provided above cannot |
||||
be given local legal effect according to their terms, reviewing courts shall |
||||
apply local law that most closely approximates an absolute waiver of all civil |
||||
liability in connection with the Program, unless a warranty or assumption |
||||
of liability accompanies a copy of the Program in return for a fee. END OF |
||||
TERMS AND CONDITIONS |
||||
|
||||
How to Apply These Terms to Your New Programs |
||||
|
||||
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, see <https://www.gnu.org/licenses/>. |
||||
|
||||
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, your program's commands might |
||||
be different; for a GUI interface, you would use an "about box". |
||||
|
||||
You should also get your employer (if you work as a programmer) or school, |
||||
if any, to sign a "copyright disclaimer" for the program, if necessary. For |
||||
more information on this, and how to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>. |
||||
|
||||
The GNU 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 Lesser General Public |
||||
License instead of this License. But first, please read <https://www.gnu.org/ |
||||
licenses /why-not-lgpl.html>. |
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Reference in new issue