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0001 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 0002 "http://www.w3.org/TR/html40/strict.dtd"> 0003 <HTML LANG="en-US"> 0004 <HEAD> 0005 <TITLE>GNU General Public License</TITLE> 0006 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> 0007 <META HTTP-EQUIV="Content-Language" CONTENT="en-US"> 0008 <META NAME="description" CONTENT="GNU general public license (for inclusion in distributions)"> 0009 <META NAME="keywords" CONTENT="gnu, Gnu, GNU, license, licence, software, free software, software license, software licence, GNU general public license, GNU General Public License"> 0010 <META NAME="robots" CONTENT="none"> 0011 <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> 0012 <LINK REL="stylesheet" HREF="kde-default.css" TYPE="text/css"> 0013 </HEAD> 0014 <BODY CLASS="license"> 0015 <H1>GNU General Public License</H1> 0016 <P>Version 2, June 1991</P> 0017 0018 <P>Copyright (C) 1989, 1991 Free Software Foundation, Inc. 0019 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA<BR> 0020 Everyone is permitted to copy and distribute verbatim copies 0021 of this license document, but changing it is not allowed.</P> 0022 0023 <H2>Preamble</H2> 0024 0025 <P>The licenses for most software are designed to take away your 0026 freedom to share and change it. By contrast, the GNU General Public 0027 License is intended to guarantee your freedom to share and change free 0028 software--to make sure the software is free for all its users. This 0029 General Public License applies to most of the Free Software 0030 Foundation's software and to any other program whose authors commit to 0031 using it. (Some other Free Software Foundation software is covered by 0032 the GNU Library General Public License instead.) You can apply it to 0033 your programs, too.</P> 0034 0035 <P>When we speak of free software, we are referring to freedom, not 0036 price. Our General Public Licenses are designed to make sure that you 0037 have the freedom to distribute copies of free software (and charge for 0038 this service if you wish), that you receive source code or can get it 0039 if you want it, that you can change the software or use pieces of it 0040 in new free programs; and that you know you can do these things.</P> 0041 0042 <P>To protect your rights, we need to make restrictions that forbid 0043 anyone to deny you these rights or to ask you to surrender the rights. 0044 These restrictions translate to certain responsibilities for you if you 0045 distribute copies of the software, or if you modify it.</P> 0046 0047 <P>For example, if you distribute copies of such a program, whether 0048 gratis or for a fee, you must give the recipients all the rights that 0049 you have. You must make sure that they, too, receive or can get the 0050 source code. And you must show them these terms so they know their 0051 rights.</P> 0052 0053 <P>We protect your rights with two steps: (1) copyright the software, and 0054 (2) offer you this license which gives you legal permission to copy, 0055 distribute and/or modify the software.</P> 0056 0057 <P>Also, for each author's protection and ours, we want to make certain 0058 that everyone understands that there is no warranty for this free 0059 software. If the software is modified by someone else and passed on, we 0060 want its recipients to know that what they have is not the original, so 0061 that any problems introduced by others will not reflect on the original 0062 authors' reputations.</P> 0063 0064 <P>Finally, any free program is threatened constantly by software 0065 patents. We wish to avoid the danger that redistributors of a free 0066 program will individually obtain patent licenses, in effect making the 0067 program proprietary. To prevent this, we have made it clear that any 0068 patent must be licensed for everyone's free use or not licensed at all.</P> 0069 0070 <P>The precise terms and conditions for copying, distribution and 0071 modification follow.</P> 0072 0073 <H2><A NAME="show-c">GNU General Public License<BR> 0074 Terms And Conditions For Copying, Distribution And Modification</A></H2> 0075 0076 <P>0. This License applies to any program or other work which contains 0077 a notice placed by the copyright holder saying it may be distributed 0078 under the terms of this General Public License. The "Program", below, 0079 refers to any such program or work, and a "work based on the Program" 0080 means either the Program or any derivative work under copyright law: 0081 that is to say, a work containing the Program or a portion of it, 0082 either verbatim or with modifications and/or translated into another 0083 language. (Hereinafter, translation is included without limitation in 0084 the term "modification".) Each licensee is addressed as "you".</P> 0085 0086 <P>Activities other than copying, distribution and modification are not 0087 covered by this License; they are outside its scope. The act of 0088 running the Program is not restricted, and the output from the Program 0089 is covered only if its contents constitute a work based on the 0090 Program (independent of having been made by running the Program). 0091 Whether that is true depends on what the Program does.</P> 0092 0093 <P>1. You may copy and distribute verbatim copies of the Program's 0094 source code as you receive it, in any medium, provided that you 0095 conspicuously and appropriately publish on each copy an appropriate 0096 copyright notice and disclaimer of warranty; keep intact all the 0097 notices that refer to this License and to the absence of any warranty; 0098 and give any other recipients of the Program a copy of this License 0099 along with the Program.</P> 0100 0101 <P>You may charge a fee for the physical act of transferring a copy, and 0102 you may at your option offer warranty protection in exchange for a fee.</P> 0103 0104 <P>2. You may modify your copy or copies of the Program or any portion 0105 of it, thus forming a work based on the Program, and copy and 0106 distribute such modifications or work under the terms of Section 1 0107 above, provided that you also meet all of these conditions:</P> 0108 0109 <OL STYLE="list-style-type: lower-alpha;"> 0110 <LI> 0111 <P>You must cause the modified files to carry prominent notices 0112 stating that you changed the files and the date of any change.</P> 0113 </LI> 0114 0115 <LI> 0116 <P>You must cause any work that you distribute or publish, that in 0117 whole or in part contains or is derived from the Program or any 0118 part thereof, to be licensed as a whole at no charge to all third 0119 parties under the terms of this License.</P> 0120 </LI> 0121 0122 <LI> 0123 <P>If the modified program normally reads commands interactively 0124 when run, you must cause it, when started running for such 0125 interactive use in the most ordinary way, to print or display an 0126 announcement including an appropriate copyright notice and a 0127 notice that there is no warranty (or else, saying that you provide 0128 a warranty) and that users may redistribute the program under 0129 these conditions, and telling the user how to view a copy of this 0130 License. (Exception: if the Program itself is interactive but 0131 does not normally print such an announcement, your work based on 0132 the Program is not required to print an announcement.)</P> 0133 </LI> 0134 </OL> 0135 0136 <P>These requirements apply to the modified work as a whole. If 0137 identifiable sections of that work are not derived from the Program, 0138 and can be reasonably considered independent and separate works in 0139 themselves, then this License, and its terms, do not apply to those 0140 sections when you distribute them as separate works. But when you 0141 distribute the same sections as part of a whole which is a work based 0142 on the Program, the distribution of the whole must be on the terms of 0143 this License, whose permissions for other licensees extend to the 0144 entire whole, and thus to each and every part regardless of who wrote it.</P> 0145 0146 <P>Thus, it is not the intent of this section to claim rights or contest 0147 your rights to work written entirely by you; rather, the intent is to 0148 exercise the right to control the distribution of derivative or 0149 collective works based on the Program.</P> 0150 0151 <P>In addition, mere aggregation of another work not based on the Program 0152 with the Program (or with a work based on the Program) on a volume of 0153 a storage or distribution medium does not bring the other work under 0154 the scope of this License.</P> 0155 0156 <P>3. You may copy and distribute the Program (or a work based on it, 0157 under Section 2) in object code or executable form under the terms of 0158 Sections 1 and 2 above provided that you also do one of the following:</P> 0159 0160 <OL STYLE="list-style-type: lower-alpha;"> 0161 <LI> 0162 <P>Accompany it with the complete corresponding machine-readable 0163 source code, which must be distributed under the terms of Sections 0164 1 and 2 above on a medium customarily used for software interchange; or,</P> 0165 </LI> 0166 0167 <LI> 0168 <P>Accompany it with a written offer, valid for at least three 0169 years, to give any third party, for a charge no more than your 0170 cost of physically performing source distribution, a complete 0171 machine-readable copy of the corresponding source code, to be 0172 distributed under the terms of Sections 1 and 2 above on a medium 0173 customarily used for software interchange; or,</P> 0174 </LI> 0175 0176 <LI> 0177 <P>Accompany it with the information you received as to the offer 0178 to distribute corresponding source code. (This alternative is 0179 allowed only for noncommercial distribution and only if you 0180 received the program in object code or executable form with such 0181 an offer, in accord with Subsection b above.)</P> 0182 </LI> 0183 </OL> 0184 0185 <P>The source code for a work means the preferred form of the work for 0186 making modifications to it. For an executable work, complete source 0187 code means all the source code for all modules it contains, plus any 0188 associated interface definition files, plus the scripts used to 0189 control compilation and installation of the executable. However, as a 0190 special exception, the source code distributed need not include 0191 anything that is normally distributed (in either source or binary 0192 form) with the major components (compiler, kernel, and so on) of the 0193 operating system on which the executable runs, unless that component 0194 itself accompanies the executable.</P> 0195 0196 <P>If distribution of executable or object code is made by offering 0197 access to copy from a designated place, then offering equivalent 0198 access to copy the source code from the same place counts as 0199 distribution of the source code, even though third parties are not 0200 compelled to copy the source along with the object code.</P> 0201 0202 <P>4. You may not copy, modify, sublicense, or distribute the Program 0203 except as expressly provided under this License. Any attempt 0204 otherwise to copy, modify, sublicense or distribute the Program is 0205 void, and will automatically terminate your rights under this License. 0206 However, parties who have received copies, or rights, from you under 0207 this License will not have their licenses terminated so long as such 0208 parties remain in full compliance.</P> 0209 0210 <P>5. You are not required to accept this License, since you have not 0211 signed it. However, nothing else grants you permission to modify or 0212 distribute the Program or its derivative works. These actions are 0213 prohibited by law if you do not accept this License. Therefore, by 0214 modifying or distributing the Program (or any work based on the 0215 Program), you indicate your acceptance of this License to do so, and 0216 all its terms and conditions for copying, distributing or modifying 0217 the Program or works based on it.</P> 0218 0219 <P>6. Each time you redistribute the Program (or any work based on the 0220 Program), the recipient automatically receives a license from the 0221 original licensor to copy, distribute or modify the Program subject to 0222 these terms and conditions. You may not impose any further 0223 restrictions on the recipients' exercise of the rights granted herein. 0224 You are not responsible for enforcing compliance by third parties to 0225 this License.</P> 0226 0227 <P>7. If, as a consequence of a court judgment or allegation of patent 0228 infringement or for any other reason (not limited to patent issues), 0229 conditions are imposed on you (whether by court order, agreement or 0230 otherwise) that contradict the conditions of this License, they do not 0231 excuse you from the conditions of this License. If you cannot 0232 distribute so as to satisfy simultaneously your obligations under this 0233 License and any other pertinent obligations, then as a consequence you 0234 may not distribute the Program at all. For example, if a patent 0235 license would not permit royalty-free redistribution of the Program by 0236 all those who receive copies directly or indirectly through you, then 0237 the only way you could satisfy both it and this License would be to 0238 refrain entirely from distribution of the Program.</P> 0239 0240 <P>If any portion of this section is held invalid or unenforceable under 0241 any particular circumstance, the balance of the section is intended to 0242 apply and the section as a whole is intended to apply in other 0243 circumstances.</P> 0244 0245 <P>It is not the purpose of this section to induce you to infringe any 0246 patents or other property right claims or to contest validity of any 0247 such claims; this section has the sole purpose of protecting the 0248 integrity of the free software distribution system, which is 0249 implemented by public license practices. Many people have made 0250 generous contributions to the wide range of software distributed 0251 through that system in reliance on consistent application of that 0252 system; it is up to the author/donor to decide if he or she is willing 0253 to distribute software through any other system and a licensee cannot 0254 impose that choice.</P> 0255 0256 <P>This section is intended to make thoroughly clear what is believed to 0257 be a consequence of the rest of this License.</P> 0258 0259 <P>8. If the distribution and/or use of the Program is restricted in 0260 certain countries either by patents or by copyrighted interfaces, the 0261 original copyright holder who places the Program under this License 0262 may add an explicit geographical distribution limitation excluding 0263 those countries, so that distribution is permitted only in or among 0264 countries not thus excluded. In such case, this License incorporates 0265 the limitation as if written in the body of this License.</P> 0266 0267 <P>9. The Free Software Foundation may publish revised and/or new versions 0268 of the General Public License from time to time. Such new versions will 0269 be similar in spirit to the present version, but may differ in detail to 0270 address new problems or concerns.</P> 0271 0272 <P>Each version is given a distinguishing version number. If the Program 0273 specifies a version number of this License which applies to it and "any 0274 later version", you have the option of following the terms and conditions 0275 either of that version or of any later version published by the Free 0276 Software Foundation. If the Program does not specify a version number of 0277 this License, you may choose any version ever published by the Free Software 0278 Foundation.</P> 0279 0280 <P>10. If you wish to incorporate parts of the Program into other free 0281 programs whose distribution conditions are different, write to the author 0282 to ask for permission. For software which is copyrighted by the Free 0283 Software Foundation, write to the Free Software Foundation; we sometimes 0284 make exceptions for this. Our decision will be guided by the two goals 0285 of preserving the free status of all derivatives of our free software and 0286 of promoting the sharing and reuse of software generally.</P> 0287 0288 <H2><A NAME="show-w">No Warranty</A></H2> 0289 0290 <P>11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 0291 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 0292 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 0293 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 0294 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 0295 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 0296 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 0297 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 0298 REPAIR OR CORRECTION.</P> 0299 0300 <P>12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 0301 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 0302 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 0303 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 0304 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 0305 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 0306 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 0307 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 0308 POSSIBILITY OF SUCH DAMAGES.</P> 0309 0310 <DIV STYLE="text-align: center;">END OF TERMS AND CONDITIONS</DIV> 0311 0312 <hr> 0313 0314 <h2>How to Apply These Terms to Your New Programs</h2> 0315 0316 <p>If you develop a new program, and you want it to be of the greatest 0317 possible use to the public, the best way to achieve this is to make it 0318 free software which everyone can redistribute and change under these 0319 terms.</p> 0320 0321 0322 <p>To do so, attach the following notices to the program. It is 0323 safest to attach them to the start of each source file to most 0324 effectively convey the exclusion of warranty; and each file should 0325 have at least the "copyright" line and a pointer to where the full 0326 notice is found.</p> 0327 0328 0329 <pre> <one line to give the program's name and a brief idea of what it does.> 0330 Copyright (C) 19yy <name of author> 0331 0332 This program is free software; you can redistribute it and/or modify 0333 it under the terms of the GNU General Public License as published by 0334 the Free Software Foundation; either version 2 of the License, or 0335 (at your option) any later version. 0336 0337 This program is distributed in the hope that it will be useful, 0338 but WITHOUT ANY WARRANTY; without even the implied warranty of 0339 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0340 GNU General Public License for more details. 0341 0342 You should have received a copy of the GNU General Public License 0343 along with this program; if not, write to the Free Software 0344 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</pre> 0345 0346 <p>Also add information on how to contact you by electronic and paper 0347 mail.</p> 0348 0349 <p>If the program is interactive, make it output a short notice like this 0350 when it starts in an interactive mode:</p> 0351 0352 <pre> Gnomovision version 69, Copyright (C) 19yy name of author 0353 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 0354 This is free software, and you are welcome to redistribute it 0355 under certain conditions; type `show c' for details.</pre> 0356 0357 <p>The hypothetical commands "show w" and "show c" should show the appropriate 0358 parts of the General Public License. Of course, the commands you use may 0359 be called something other than "show w" and "show c"; they could even be 0360 mouse-clicks or menu items--whatever suits your program.</p> 0361 0362 <p>You should also get your employer (if you work as a programmer) or your 0363 school, if any, to sign a "copyright disclaimer" for the program, if 0364 necessary. Here is a sample; alter the names:</p> 0365 0366 <pre> Yoyodyne, Inc., hereby disclaims all copyright interest in the program 0367 `Gnomovision' (which makes passes at compilers) written by James Hacker. 0368 0369 <signature of Ty Coon>, 1 April 1989 0370 Ty Coon, President of Vice</pre> 0371 0372 <p>This General Public License does not permit incorporating your program into 0373 proprietary programs. If your program is a subroutine library, you may 0374 consider it more useful to permit linking proprietary applications with the 0375 library. If this is what you want to do, use the GNU Library General 0376 Public License instead of this License.</p> 0377 0378 0379 0380 </BODY> 0381 </HTML>