1 /* Copyright (c) 1995-1998 Joe Rumsey (mrogre@mediaone.net) */ 2 3 /* 4 5 GNU GENERAL PUBLIC LICENSE 6 Version 2, June 1991 7 8 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 9 675 Mass Ave, Cambridge, MA 02139, USA 10 Everyone is permitted to copy and distribute verbatim copies 11 of this license document, but changing it is not allowed. 12 13 Preamble 14 15 The licenses for most software are designed to take away your 16 freedom to share and change it. By contrast, the GNU General Public 17 License is intended to guarantee your freedom to share and change free 18 software--to make sure the software is free for all its users. This 19 General Public License applies to most of the Free Software 20 Foundation's software and to any other program whose authors commit to 21 using it. (Some other Free Software Foundation software is covered by 22 the GNU Library General Public License instead.) You can apply it to 23 your programs, too. 24 25 When we speak of free software, we are referring to freedom, not 26 price. Our General Public Licenses are designed to make sure that you 27 have the freedom to distribute copies of free software (and charge for 28 this service if you wish), that you receive source code or can get it 29 if you want it, that you can change the software or use pieces of it 30 in new free programs; and that you know you can do these things. 31 32 To protect your rights, we need to make restrictions that forbid 33 anyone to deny you these rights or to ask you to surrender the rights. 34 These restrictions translate to certain responsibilities for you if you 35 distribute copies of the software, or if you modify it. 36 37 For example, if you distribute copies of such a program, whether 38 gratis or for a fee, you must give the recipients all the rights that 39 you have. You must make sure that they, too, receive or can get the 40 source code. And you must show them these terms so they know their 41 rights. 42 43 We protect your rights with two steps: (1) copyright the software, and 44 (2) offer you this license which gives you legal permission to copy, 45 distribute and/or modify the software. 46 47 Also, for each author's protection and ours, we want to make certain 48 that everyone understands that there is no warranty for this free 49 software. If the software is modified by someone else and passed on, we 50 want its recipients to know that what they have is not the original, so 51 that any problems introduced by others will not reflect on the original 52 authors' reputations. 53 54 Finally, any free program is threatened constantly by software 55 patents. We wish to avoid the danger that redistributors of a free 56 program will individually obtain patent licenses, in effect making the 57 program proprietary. To prevent this, we have made it clear that any 58 patent must be licensed for everyone's free use or not licensed at all. 59 60 The precise terms and conditions for copying, distribution and 61 modification follow. 62 63 GNU GENERAL PUBLIC LICENSE 64 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 65 66 0. This License applies to any program or other work which contains 67 a notice placed by the copyright holder saying it may be distributed 68 under the terms of this General Public License. The "Program", below, 69 refers to any such program or work, and a "work based on the Program" 70 means either the Program or any derivative work under copyright law: 71 that is to say, a work containing the Program or a portion of it, 72 either verbatim or with modifications and/or translated into another 73 language. (Hereinafter, translation is included without limitation in 74 the term "modification".) Each licensee is addressed as "you". 75 76 Activities other than copying, distribution and modification are not 77 covered by this License; they are outside its scope. The act of 78 running the Program is not restricted, and the output from the Program 79 is covered only if its contents constitute a work based on the 80 Program (independent of having been made by running the Program). 81 Whether that is true depends on what the Program does. 82 83 1. You may copy and distribute verbatim copies of the Program's 84 source code as you receive it, in any medium, provided that you 85 conspicuously and appropriately publish on each copy an appropriate 86 copyright notice and disclaimer of warranty; keep intact all the 87 notices that refer to this License and to the absence of any warranty; 88 and give any other recipients of the Program a copy of this License 89 along with the Program. 90 91 You may charge a fee for the physical act of transferring a copy, and 92 you may at your option offer warranty protection in exchange for a fee. 93 94 2. You may modify your copy or copies of the Program or any portion 95 of it, thus forming a work based on the Program, and copy and 96 distribute such modifications or work under the terms of Section 1 97 above, provided that you also meet all of these conditions: 98 99 a) You must cause the modified files to carry prominent notices 100 stating that you changed the files and the date of any change. 101 102 b) You must cause any work that you distribute or publish, that in 103 whole or in part contains or is derived from the Program or any 104 part thereof, to be licensed as a whole at no charge to all third 105 parties under the terms of this License. 106 107 c) If the modified program normally reads commands interactively 108 when run, you must cause it, when started running for such 109 interactive use in the most ordinary way, to print or display an 110 announcement including an appropriate copyright notice and a 111 notice that there is no warranty (or else, saying that you provide 112 a warranty) and that users may redistribute the program under 113 these conditions, and telling the user how to view a copy of this 114 License. (Exception: if the Program itself is interactive but 115 does not normally print such an announcement, your work based on 116 the Program is not required to print an announcement.) 117 118 These requirements apply to the modified work as a whole. If 119 identifiable sections of that work are not derived from the Program, 120 and can be reasonably considered independent and separate works in 121 themselves, then this License, and its terms, do not apply to those 122 sections when you distribute them as separate works. But when you 123 distribute the same sections as part of a whole which is a work based 124 on the Program, the distribution of the whole must be on the terms of 125 this License, whose permissions for other licensees extend to the 126 entire whole, and thus to each and every part regardless of who wrote it. 127 128 Thus, it is not the intent of this section to claim rights or contest 129 your rights to work written entirely by you; rather, the intent is to 130 exercise the right to control the distribution of derivative or 131 collective works based on the Program. 132 133 In addition, mere aggregation of another work not based on the Program 134 with the Program (or with a work based on the Program) on a volume of 135 a storage or distribution medium does not bring the other work under 136 the scope of this License. 137 138 3. You may copy and distribute the Program (or a work based on it, 139 under Section 2) in object code or executable form under the terms of 140 Sections 1 and 2 above provided that you also do one of the following: 141 142 a) Accompany it with the complete corresponding machine-readable 143 source code, which must be distributed under the terms of Sections 144 1 and 2 above on a medium customarily used for software interchange; or, 145 146 b) Accompany it with a written offer, valid for at least three 147 years, to give any third party, for a charge no more than your 148 cost of physically performing source distribution, a complete 149 machine-readable copy of the corresponding source code, to be 150 distributed under the terms of Sections 1 and 2 above on a medium 151 customarily used for software interchange; or, 152 153 c) Accompany it with the information you received as to the offer 154 to distribute corresponding source code. (This alternative is 155 allowed only for noncommercial distribution and only if you 156 received the program in object code or executable form with such 157 an offer, in accord with Subsection b above.) 158 159 The source code for a work means the preferred form of the work for 160 making modifications to it. For an executable work, complete source 161 code means all the source code for all modules it contains, plus any 162 associated interface definition files, plus the scripts used to 163 control compilation and installation of the executable. However, as a 164 special exception, the source code distributed need not include 165 anything that is normally distributed (in either source or binary 166 form) with the major components (compiler, kernel, and so on) of the 167 operating system on which the executable runs, unless that component 168 itself accompanies the executable. 169 170 If distribution of executable or object code is made by offering 171 access to copy from a designated place, then offering equivalent 172 access to copy the source code from the same place counts as 173 distribution of the source code, even though third parties are not 174 compelled to copy the source along with the object code. 175 176 4. You may not copy, modify, sublicense, or distribute the Program 177 except as expressly provided under this License. Any attempt 178 otherwise to copy, modify, sublicense or distribute the Program is 179 void, and will automatically terminate your rights under this License. 180 However, parties who have received copies, or rights, from you under 181 this License will not have their licenses terminated so long as such 182 parties remain in full compliance. 183 184 5. You are not required to accept this License, since you have not 185 signed it. However, nothing else grants you permission to modify or 186 distribute the Program or its derivative works. These actions are 187 prohibited by law if you do not accept this License. Therefore, by 188 modifying or distributing the Program (or any work based on the 189 Program), you indicate your acceptance of this License to do so, and 190 all its terms and conditions for copying, distributing or modifying 191 the Program or works based on it. 192 193 6. Each time you redistribute the Program (or any work based on the 194 Program), the recipient automatically receives a license from the 195 original licensor to copy, distribute or modify the Program subject to 196 these terms and conditions. You may not impose any further 197 restrictions on the recipients' exercise of the rights granted herein. 198 You are not responsible for enforcing compliance by third parties to 199 this License. 200 201 7. If, as a consequence of a court judgment or allegation of patent 202 infringement or for any other reason (not limited to patent issues), 203 conditions are imposed on you (whether by court order, agreement or 204 otherwise) that contradict the conditions of this License, they do not 205 excuse you from the conditions of this License. If you cannot 206 distribute so as to satisfy simultaneously your obligations under this 207 License and any other pertinent obligations, then as a consequence you 208 may not distribute the Program at all. For example, if a patent 209 license would not permit royalty-free redistribution of the Program by 210 all those who receive copies directly or indirectly through you, then 211 the only way you could satisfy both it and this License would be to 212 refrain entirely from distribution of the Program. 213 214 If any portion of this section is held invalid or unenforceable under 215 any particular circumstance, the balance of the section is intended to 216 apply and the section as a whole is intended to apply in other 217 circumstances. 218 219 It is not the purpose of this section to induce you to infringe any 220 patents or other property right claims or to contest validity of any 221 such claims; this section has the sole purpose of protecting the 222 integrity of the free software distribution system, which is 223 implemented by public license practices. Many people have made 224 generous contributions to the wide range of software distributed 225 through that system in reliance on consistent application of that 226 system; it is up to the author/donor to decide if he or she is willing 227 to distribute software through any other system and a licensee cannot 228 impose that choice. 229 230 This section is intended to make thoroughly clear what is believed to 231 be a consequence of the rest of this License. 232 233 8. If the distribution and/or use of the Program is restricted in 234 certain countries either by patents or by copyrighted interfaces, the 235 original copyright holder who places the Program under this License 236 may add an explicit geographical distribution limitation excluding 237 those countries, so that distribution is permitted only in or among 238 countries not thus excluded. In such case, this License incorporates 239 the limitation as if written in the body of this License. 240 241 9. The Free Software Foundation may publish revised and/or new versions 242 of the General Public License from time to time. Such new versions will 243 be similar in spirit to the present version, but may differ in detail to 244 address new problems or concerns. 245 246 Each version is given a distinguishing version number. If the Program 247 specifies a version number of this License which applies to it and "any 248 later version", you have the option of following the terms and conditions 249 either of that version or of any later version published by the Free 250 Software Foundation. If the Program does not specify a version number of 251 this License, you may choose any version ever published by the Free Software 252 Foundation. 253 254 10. If you wish to incorporate parts of the Program into other free 255 programs whose distribution conditions are different, write to the author 256 to ask for permission. For software which is copyrighted by the Free 257 Software Foundation, write to the Free Software Foundation; we sometimes 258 make exceptions for this. Our decision will be guided by the two goals 259 of preserving the free status of all derivatives of our free software and 260 of promoting the sharing and reuse of software generally. 261 262 NO WARRANTY 263 264 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 265 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 266 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 267 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 268 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 269 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 270 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 271 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 272 REPAIR OR CORRECTION. 273 274 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 275 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 276 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 277 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 278 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 279 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 280 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 281 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 282 POSSIBILITY OF SUCH DAMAGES. 283 284 END OF TERMS AND CONDITIONS 285 286 Appendix: How to Apply These Terms to Your New Programs 287 288 If you develop a new program, and you want it to be of the greatest 289 possible use to the public, the best way to achieve this is to make it 290 free software which everyone can redistribute and change under these terms. 291 292 To do so, attach the following notices to the program. It is safest 293 to attach them to the start of each source file to most effectively 294 convey the exclusion of warranty; and each file should have at least 295 the "copyright" line and a pointer to where the full notice is found. 296 297 <one line to give the program's name and a brief idea of what it does.> 298 Copyright (C) 19yy <name of author> 299 300 This program is free software; you can redistribute it and/or modify 301 it under the terms of the GNU General Public License as published by 302 the Free Software Foundation; either version 2 of the License, or 303 (at your option) any later version. 304 305 This program is distributed in the hope that it will be useful, 306 but WITHOUT ANY WARRANTY; without even the implied warranty of 307 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 308 GNU General Public License for more details. 309 310 You should have received a copy of the GNU General Public License 311 along with this program; if not, write to the Free Software 312 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 313 314 Also add information on how to contact you by electronic and paper mail. 315 316 If the program is interactive, make it output a short notice like this 317 when it starts in an interactive mode: 318 319 Gnomovision version 69, Copyright (C) 19yy name of author 320 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 321 This is free software, and you are welcome to redistribute it 322 under certain conditions; type `show c' for details. 323 324 The hypothetical commands `show w' and `show c' should show the appropriate 325 parts of the General Public License. Of course, the commands you use may 326 be called something other than `show w' and `show c'; they could even be 327 mouse-clicks or menu items--whatever suits your program. 328 329 You should also get your employer (if you work as a programmer) or your 330 school, if any, to sign a "copyright disclaimer" for the program, if 331 necessary. Here is a sample; alter the names: 332 333 Yoyodyne, Inc., hereby disclaims all copyright interest in the program 334 `Gnomovision' (which makes passes at compilers) written by James Hacker. 335 336 <signature of Ty Coon>, 1 April 1989 337 Ty Coon, President of Vice 338 339 This General Public License does not permit incorporating your program into 340 proprietary programs. If your program is a subroutine library, you may 341 consider it more useful to permit linking proprietary applications with the 342 library. If this is what you want to do, use the GNU Library General 343 Public License instead of this License. 344 345 */ 346