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2 | GNU GENERAL PUBLIC LICENSE | |
3 | Version 1, February 1989 | |
4 | ||
5 | Copyright (C) 1989 Free Software Foundation, Inc. | |
6 | 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
7 | ||
8 | Everyone is permitted to copy and distribute verbatim copies | |
9 | of this license document, but changing it is not allowed. | |
10 | ||
11 | Preamble | |
12 | ||
13 | The license agreements of most software companies try to keep users | |
14 | at the mercy of those companies. By contrast, our General Public | |
15 | License is intended to guarantee your freedom to share and change free | |
16 | software--to make sure the software is free for all its users. The | |
17 | General Public License applies to the Free Software Foundation's | |
18 | software and to any other program whose authors commit to using it. | |
19 | You can use it for your programs, too. | |
20 | ||
21 | When we speak of free software, we are referring to freedom, not | |
22 | price. Specifically, the General Public License is designed to make | |
23 | sure that you have the freedom to give away or sell copies of free | |
24 | software, that you receive source code or can get it if you want it, | |
25 | that you can change the software or use pieces of it in new free | |
26 | programs; and that you know you can do these things. | |
27 | ||
28 | To protect your rights, we need to make restrictions that forbid | |
29 | anyone to deny you these rights or to ask you to surrender the rights. | |
30 | These restrictions translate to certain responsibilities for you if you | |
31 | distribute copies of the software, or if you modify it. | |
32 | ||
33 | For example, if you distribute copies of a such a program, whether | |
34 | gratis or for a fee, you must give the recipients all the rights that | |
35 | you have. You must make sure that they, too, receive or can get the | |
36 | source code. And you must tell them their rights. | |
37 | ||
38 | We protect your rights with two steps: (1) copyright the software, and | |
39 | (2) offer you this license which gives you legal permission to copy, | |
40 | distribute and/or modify the software. | |
41 | ||
42 | Also, for each author's protection and ours, we want to make certain | |
43 | that everyone understands that there is no warranty for this free | |
44 | software. If the software is modified by someone else and passed on, we | |
45 | want its recipients to know that what they have is not the original, so | |
46 | that any problems introduced by others will not reflect on the original | |
47 | authors' reputations. | |
48 | ||
49 | The precise terms and conditions for copying, distribution and | |
50 | modification follow. | |
51 | \f | |
52 | GNU GENERAL PUBLIC LICENSE | |
53 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
54 | ||
55 | 0. This License Agreement applies to any program or other work which | |
56 | contains a notice placed by the copyright holder saying it may be | |
57 | distributed under the terms of this General Public License. The | |
58 | "Program", below, refers to any such program or work, and a "work based | |
59 | on the Program" means either the Program or any work containing the | |
60 | Program or a portion of it, either verbatim or with modifications. Each | |
61 | licensee is addressed as "you". | |
62 | ||
63 | 1. You may copy and distribute verbatim copies of the Program's source | |
64 | code as you receive it, in any medium, provided that you conspicuously and | |
65 | appropriately publish on each copy an appropriate copyright notice and | |
66 | disclaimer of warranty; keep intact all the notices that refer to this | |
67 | General Public License and to the absence of any warranty; and give any | |
68 | other recipients of the Program a copy of this General Public License | |
69 | along with the Program. You may charge a fee for the physical act of | |
70 | transferring a copy. | |
71 | ||
72 | 2. You may modify your copy or copies of the Program or any portion of | |
73 | it, and copy and distribute such modifications under the terms of Paragraph | |
74 | 1 above, provided that you also do the following: | |
75 | ||
76 | a) cause the modified files to carry prominent notices stating that | |
77 | you changed the files and the date of any change; and | |
78 | ||
79 | b) cause the whole of any work that you distribute or publish, that | |
80 | in whole or in part contains the Program or any part thereof, either | |
81 | with or without modifications, to be licensed at no charge to all | |
82 | third parties under the terms of this General Public License (except | |
83 | that you may choose to grant warranty protection to some or all | |
84 | third parties, at your option). | |
85 | ||
86 | c) If the modified program normally reads commands interactively when | |
87 | run, you must cause it, when started running for such interactive use | |
88 | in the simplest and most usual way, to print or display an | |
89 | announcement including an appropriate copyright notice and a notice | |
90 | that there is no warranty (or else, saying that you provide a | |
91 | warranty) and that users may redistribute the program under these | |
92 | conditions, and telling the user how to view a copy of this General | |
93 | Public License. | |
94 | ||
95 | d) You may charge a fee for the physical act of transferring a | |
96 | copy, and you may at your option offer warranty protection in | |
97 | exchange for a fee. | |
98 | ||
99 | Mere aggregation of another independent work with the Program (or its | |
100 | derivative) on a volume of a storage or distribution medium does not bring | |
101 | the other work under the scope of these terms. | |
102 | \f | |
103 | 3. You may copy and distribute the Program (or a portion or derivative of | |
104 | it, under Paragraph 2) in object code or executable form under the terms of | |
105 | Paragraphs 1 and 2 above provided that you also do one of the following: | |
106 | ||
107 | a) accompany it with the complete corresponding machine-readable | |
108 | source code, which must be distributed under the terms of | |
109 | Paragraphs 1 and 2 above; or, | |
110 | ||
111 | b) accompany it with a written offer, valid for at least three | |
112 | years, to give any third party free (except for a nominal charge | |
113 | for the cost of distribution) a complete machine-readable copy of the | |
114 | corresponding source code, to be distributed under the terms of | |
115 | Paragraphs 1 and 2 above; or, | |
116 | ||
117 | c) accompany it with the information you received as to where the | |
118 | corresponding source code may be obtained. (This alternative is | |
119 | allowed only for noncommercial distribution and only if you | |
120 | received the program in object code or executable form alone.) | |
121 | ||
122 | Source code for a work means the preferred form of the work for making | |
123 | modifications to it. For an executable file, complete source code means | |
124 | all the source code for all modules it contains; but, as a special | |
125 | exception, it need not include source code for modules which are standard | |
126 | libraries that accompany the operating system on which the executable | |
127 | file runs, or for standard header files or definitions files that | |
128 | accompany that operating system. | |
129 | ||
130 | 4. You may not copy, modify, sublicense, distribute or transfer the | |
131 | Program except as expressly provided under this General Public License. | |
132 | Any attempt otherwise to copy, modify, sublicense, distribute or transfer | |
133 | the Program is void, and will automatically terminate your rights to use | |
134 | the Program under this License. However, parties who have received | |
135 | copies, or rights to use copies, from you under this General Public | |
136 | License will not have their licenses terminated so long as such parties | |
137 | remain in full compliance. | |
138 | ||
139 | 5. By copying, distributing or modifying the Program (or any work based | |
140 | on the Program) you indicate your acceptance of this license to do so, | |
141 | and all its terms and conditions. | |
142 | ||
143 | 6. Each time you redistribute the Program (or any work based on the | |
144 | Program), the recipient automatically receives a license from the original | |
145 | licensor to copy, distribute or modify the Program subject to these | |
146 | terms and conditions. You may not impose any further restrictions on the | |
147 | recipients' exercise of the rights granted herein. | |
148 | \f | |
149 | 7. The Free Software Foundation may publish revised and/or new versions | |
150 | of the General Public License from time to time. Such new versions will | |
151 | be similar in spirit to the present version, but may differ in detail to | |
152 | address new problems or concerns. | |
153 | ||
154 | Each version is given a distinguishing version number. If the Program | |
155 | specifies a version number of the license which applies to it and "any | |
156 | later version", you have the option of following the terms and conditions | |
157 | either of that version or of any later version published by the Free | |
158 | Software Foundation. If the Program does not specify a version number of | |
159 | the license, you may choose any version ever published by the Free Software | |
160 | Foundation. | |
161 | ||
162 | 8. If you wish to incorporate parts of the Program into other free | |
163 | programs whose distribution conditions are different, write to the author | |
164 | to ask for permission. For software which is copyrighted by the Free | |
165 | Software Foundation, write to the Free Software Foundation; we sometimes | |
166 | make exceptions for this. Our decision will be guided by the two goals | |
167 | of preserving the free status of all derivatives of our free software and | |
168 | of promoting the sharing and reuse of software generally. | |
169 | ||
170 | NO WARRANTY | |
171 | ||
172 | 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY | |
173 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN | |
174 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES | |
175 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED | |
176 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
177 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS | |
178 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE | |
179 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, | |
180 | REPAIR OR CORRECTION. | |
181 | ||
182 | 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING | |
183 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR | |
184 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, | |
185 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING | |
186 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED | |
187 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY | |
188 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER | |
189 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE | |
190 | POSSIBILITY OF SUCH DAMAGES. | |
191 | ||
192 | END OF TERMS AND CONDITIONS | |
193 | \f | |
194 | Appendix: How to Apply These Terms to Your New Programs | |
195 | ||
196 | If you develop a new program, and you want it to be of the greatest | |
197 | possible use to humanity, the best way to achieve this is to make it | |
198 | free software which everyone can redistribute and change under these | |
199 | terms. | |
200 | ||
201 | To do so, attach the following notices to the program. It is safest to | |
202 | attach them to the start of each source file to most effectively convey | |
203 | the exclusion of warranty; and each file should have at least the | |
204 | "copyright" line and a pointer to where the full notice is found. | |
205 | ||
206 | <one line to give the program's name and a brief idea of what it does.> | |
207 | Copyright (C) 19yy <name of author> | |
208 | ||
209 | This program is free software; you can redistribute it and/or modify | |
210 | it under the terms of the GNU General Public License as published by | |
211 | the Free Software Foundation; either version 1, or (at your option) | |
212 | any later version. | |
213 | ||
214 | This program is distributed in the hope that it will be useful, | |
215 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
216 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
217 | GNU General Public License for more details. | |
218 | ||
219 | You should have received a copy of the GNU General Public License | |
220 | along with this program; if not, write to the Free Software | |
221 | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA | |
222 | ||
223 | ||
224 | Also add information on how to contact you by electronic and paper mail. | |
225 | ||
226 | If the program is interactive, make it output a short notice like this | |
227 | when it starts in an interactive mode: | |
228 | ||
229 | Gnomovision version 69, Copyright (C) 19xx name of author | |
230 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. | |
231 | This is free software, and you are welcome to redistribute it | |
232 | under certain conditions; type `show c' for details. | |
233 | ||
234 | The hypothetical commands `show w' and `show c' should show the | |
235 | appropriate parts of the General Public License. Of course, the | |
236 | commands you use may be called something other than `show w' and `show | |
237 | c'; they could even be mouse-clicks or menu items--whatever suits your | |
238 | program. | |
239 | ||
240 | You should also get your employer (if you work as a programmer) or your | |
241 | school, if any, to sign a "copyright disclaimer" for the program, if | |
242 | necessary. Here a sample; alter the names: | |
243 | ||
244 | Yoyodyne, Inc., hereby disclaims all copyright interest in the | |
245 | program `Gnomovision' (a program to direct compilers to make passes | |
246 | at assemblers) written by James Hacker. | |
247 | ||
248 | <signature of Ty Coon>, 1 April 1989 | |
249 | Ty Coon, President of Vice | |
250 | ||
251 | That's all there is to it! |