1 Valid-License-Identifier: GPL-1.0+
2 SPDX-URL: https://spdx.org/licenses/GPL-1.0.html
4 The GNU General Public License (GPL) version 1 should not be used in new
5 code. For existing kernel code the 'or any later version' option is
6 required to be compatible with the general license of the project: GPLv2.
7 To use the license in source code, put the following SPDX tag/value pair
8 into a comment according to the placement guidelines in the licensing
10 SPDX-License-Identifier: GPL-1.0+
13 GNU GENERAL PUBLIC LICENSE
14 Version 1, February 1989
16 Copyright (C) 1989 Free Software Foundation, Inc.
17 675 Mass Ave, Cambridge, MA 02139, USA
18 Everyone is permitted to copy and distribute verbatim copies
19 of this license document, but changing it is not allowed.
23 The license agreements of most software companies try to keep users
24 at the mercy of those companies. By contrast, our General Public
25 License is intended to guarantee your freedom to share and change free
26 software--to make sure the software is free for all its users. The
27 General Public License applies to the Free Software Foundation's
28 software and to any other program whose authors commit to using it.
29 You can use it for your programs, too.
31 When we speak of free software, we are referring to freedom, not
32 price. Specifically, the General Public License is designed to make
33 sure that you have the freedom to give away or sell copies of free
34 software, that you receive source code or can get it if you want it,
35 that you can change the software or use pieces of it in new free
36 programs; and that you know you can do these things.
38 To protect your rights, we need to make restrictions that forbid
39 anyone to deny you these rights or to ask you to surrender the rights.
40 These restrictions translate to certain responsibilities for you if you
41 distribute copies of the software, or if you modify it.
43 For example, if you distribute copies of a such a program, whether
44 gratis or for a fee, you must give the recipients all the rights that
45 you have. You must make sure that they, too, receive or can get the
46 source code. And you must tell them their rights.
48 We protect your rights with two steps: (1) copyright the software, and
49 (2) offer you this license which gives you legal permission to copy,
50 distribute and/or modify the software.
52 Also, for each author's protection and ours, we want to make certain
53 that everyone understands that there is no warranty for this free
54 software. If the software is modified by someone else and passed on, we
55 want its recipients to know that what they have is not the original, so
56 that any problems introduced by others will not reflect on the original
59 The precise terms and conditions for copying, distribution and
62 GNU GENERAL PUBLIC LICENSE
63 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
65 0. This License Agreement applies to any program or other work which
66 contains a notice placed by the copyright holder saying it may be
67 distributed under the terms of this General Public License. The
68 "Program", below, refers to any such program or work, and a "work based
69 on the Program" means either the Program or any work containing the
70 Program or a portion of it, either verbatim or with modifications. Each
71 licensee is addressed as "you".
73 1. You may copy and distribute verbatim copies of the Program's source
74 code as you receive it, in any medium, provided that you conspicuously and
75 appropriately publish on each copy an appropriate copyright notice and
76 disclaimer of warranty; keep intact all the notices that refer to this
77 General Public License and to the absence of any warranty; and give any
78 other recipients of the Program a copy of this General Public License
79 along with the Program. You may charge a fee for the physical act of
82 2. You may modify your copy or copies of the Program or any portion of
83 it, and copy and distribute such modifications under the terms of Paragraph
84 1 above, provided that you also do the following:
86 a) cause the modified files to carry prominent notices stating that
87 you changed the files and the date of any change; and
89 b) cause the whole of any work that you distribute or publish, that
90 in whole or in part contains the Program or any part thereof, either
91 with or without modifications, to be licensed at no charge to all
92 third parties under the terms of this General Public License (except
93 that you may choose to grant warranty protection to some or all
94 third parties, at your option).
96 c) If the modified program normally reads commands interactively when
97 run, you must cause it, when started running for such interactive use
98 in the simplest and most usual way, to print or display an
99 announcement including an appropriate copyright notice and a notice
100 that there is no warranty (or else, saying that you provide a
101 warranty) and that users may redistribute the program under these
102 conditions, and telling the user how to view a copy of this General
105 d) You may charge a fee for the physical act of transferring a
106 copy, and you may at your option offer warranty protection in
109 Mere aggregation of another independent work with the Program (or its
110 derivative) on a volume of a storage or distribution medium does not bring
111 the other work under the scope of these terms.
113 3. You may copy and distribute the Program (or a portion or derivative of
114 it, under Paragraph 2) in object code or executable form under the terms of
115 Paragraphs 1 and 2 above provided that you also do one of the following:
117 a) accompany it with the complete corresponding machine-readable
118 source code, which must be distributed under the terms of
119 Paragraphs 1 and 2 above; or,
121 b) accompany it with a written offer, valid for at least three
122 years, to give any third party free (except for a nominal charge
123 for the cost of distribution) a complete machine-readable copy of the
124 corresponding source code, to be distributed under the terms of
125 Paragraphs 1 and 2 above; or,
127 c) accompany it with the information you received as to where the
128 corresponding source code may be obtained. (This alternative is
129 allowed only for noncommercial distribution and only if you
130 received the program in object code or executable form alone.)
132 Source code for a work means the preferred form of the work for making
133 modifications to it. For an executable file, complete source code means
134 all the source code for all modules it contains; but, as a special
135 exception, it need not include source code for modules which are standard
136 libraries that accompany the operating system on which the executable
137 file runs, or for standard header files or definitions files that
138 accompany that operating system.
140 4. You may not copy, modify, sublicense, distribute or transfer the
141 Program except as expressly provided under this General Public License.
142 Any attempt otherwise to copy, modify, sublicense, distribute or transfer
143 the Program is void, and will automatically terminate your rights to use
144 the Program under this License. However, parties who have received
145 copies, or rights to use copies, from you under this General Public
146 License will not have their licenses terminated so long as such parties
147 remain in full compliance.
149 5. By copying, distributing or modifying the Program (or any work based
150 on the Program) you indicate your acceptance of this license to do so,
151 and all its terms and conditions.
153 6. Each time you redistribute the Program (or any work based on the
154 Program), the recipient automatically receives a license from the original
155 licensor to copy, distribute or modify the Program subject to these
156 terms and conditions. You may not impose any further restrictions on the
157 recipients' exercise of the rights granted herein.
159 7. The Free Software Foundation may publish revised and/or new versions
160 of the General Public License from time to time. Such new versions will
161 be similar in spirit to the present version, but may differ in detail to
162 address new problems or concerns.
164 Each version is given a distinguishing version number. If the Program
165 specifies a version number of the license which applies to it and "any
166 later version", you have the option of following the terms and conditions
167 either of that version or of any later version published by the Free
168 Software Foundation. If the Program does not specify a version number of
169 the license, you may choose any version ever published by the Free Software
172 8. If you wish to incorporate parts of the Program into other free
173 programs whose distribution conditions are different, write to the author
174 to ask for permission. For software which is copyrighted by the Free
175 Software Foundation, write to the Free Software Foundation; we sometimes
176 make exceptions for this. Our decision will be guided by the two goals
177 of preserving the free status of all derivatives of our free software and
178 of promoting the sharing and reuse of software generally.
182 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
183 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
184 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
185 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
186 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
187 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
188 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
189 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
190 REPAIR OR CORRECTION.
192 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
193 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
194 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
195 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
196 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
197 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
198 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
199 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
200 POSSIBILITY OF SUCH DAMAGES.
202 END OF TERMS AND CONDITIONS
204 Appendix: How to Apply These Terms to Your New Programs
206 If you develop a new program, and you want it to be of the greatest
207 possible use to humanity, the best way to achieve this is to make it
208 free software which everyone can redistribute and change under these
211 To do so, attach the following notices to the program. It is safest to
212 attach them to the start of each source file to most effectively convey
213 the exclusion of warranty; and each file should have at least the
214 "copyright" line and a pointer to where the full notice is found.
216 <one line to give the program's name and a brief idea of what it does.>
217 Copyright (C) 19yy <name of author>
219 This program is free software; you can redistribute it and/or modify
220 it under the terms of the GNU General Public License as published by
221 the Free Software Foundation; either version 1, or (at your option)
224 This program is distributed in the hope that it will be useful,
225 but WITHOUT ANY WARRANTY; without even the implied warranty of
226 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
227 GNU General Public License for more details.
229 You should have received a copy of the GNU General Public License
230 along with this program; if not, write to the Free Software
231 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
233 Also add information on how to contact you by electronic and paper mail.
235 If the program is interactive, make it output a short notice like this
236 when it starts in an interactive mode:
238 Gnomovision version 69, Copyright (C) 19xx name of author
239 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
240 This is free software, and you are welcome to redistribute it
241 under certain conditions; type `show c' for details.
243 The hypothetical commands `show w' and `show c' should show the
244 appropriate parts of the General Public License. Of course, the
245 commands you use may be called something other than `show w' and `show
246 c'; they could even be mouse-clicks or menu items--whatever suits your
249 You should also get your employer (if you work as a programmer) or your
250 school, if any, to sign a "copyright disclaimer" for the program, if
251 necessary. Here a sample; alter the names:
253 Yoyodyne, Inc., hereby disclaims all copyright interest in the
254 program `Gnomovision' (a program to direct compilers to make passes
255 at assemblers) written by James Hacker.
257 <signature of Ty Coon>, 1 April 1989
258 Ty Coon, President of Vice
260 That's all there is to it!