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-
- Visopsys
- Copyright (C) 1998-2007 J. Andrew McLaughlin
-
- 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 2 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.
-
-
- The verbatim text of the GNU General Public License follows. You can obtain
- the 'official' version from the Free Software Foundation website at:
- http://www.gnu.org/copyleft/gpl.html
-
-
- 8<------------------------------ Cut here --------------------------------->8
-
- Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
-
- Everyone is permitted to copy and distribute verbatim copies of this license
- document, but changing it is not allowed.
-
- PREAMBLE
-
- The licenses for most software are designed to take away your freedom to
- share and change it. By contrast, the GNU General Public License is intended
- to guarantee your freedom to share and change free software--to make sure
- the software is free for all its users. This General Public License applies
- to most of the Free Software Foundation's software and to any other program
- whose authors commit to using it. (Some other Free Software Foundation
- software is covered by the GNU Library General Public License instead.)
- You can apply it to your programs, too.
-
- When we speak of free software, we are referring to freedom, not price. Our
- General Public Licenses are designed to make sure that you have the freedom
- to distribute copies of free software (and charge for this service if you
- wish), that you receive source code or can get it if you want it, that you
- can change the software or use pieces of it in new free programs; and that
- you know you can do these things.
-
- To protect your rights, we need to make restrictions that forbid anyone to
- deny you these rights or to ask you to surrender the rights. These
- restrictions translate to certain responsibilities for you if you distribute
- copies of the software, or if you modify it.
-
- For example, if you distribute copies of such a program, whether gratis or
- for a fee, you must give the recipients all the rights that you have. You
- must make sure that they, too, receive or can get the source code. And you
- must show them these terms so they know their rights.
-
- We protect your rights with two steps: (1) copyright the software, and (2)
- offer you this license which gives you legal permission to copy, distribute
- and/or modify the software.
-
- Also, for each author's protection and ours, we want to make certain that
- everyone understands that there is no warranty for this free software. If
- the software is modified by someone else and passed on, we want its
- recipients to know that what they have is not the original, so that any
- problems introduced by others will not reflect on the original authors'
- reputations.
-
- Finally, any free program is threatened constantly by software patents. We
- wish to avoid the danger that redistributors of a free program will
- individually obtain patent licenses, in effect making the program
- proprietary. To prevent this, we have made it clear that any patent must be
- licensed for everyone's free use or not licensed at all.
-
- The precise terms and conditions for copying, distribution and modification
- follow.
-
- TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
- 0. This License applies to any program or other work which contains a notice
- placed by the copyright holder saying it may be distributed under the terms
- of this General Public License. The "Program", below, refers to any such
- program or work, and a "work based on the Program" means either the Program
- or any derivative work under copyright law: that is to say, a work containing
- the Program or a portion of it, either verbatim or with modifications and/or
- translated into another language. (Hereinafter, translation is included
- without limitation in the term "modification".) Each licensee is addressed
- as "you".
-
- Activities other than copying, distribution and modification are not covered
- by this License; they are outside its scope. The act of running the Program
- is not restricted, and the output from the Program is covered only if its
- contents constitute a work based on the Program (independent of having been
- made by running the Program). Whether that is true depends on what the
- Program does.
-
- 1. You may copy and distribute verbatim copies of the Program's source code
- as you receive it, in any medium, provided that you conspicuously and
- appropriately publish on each copy an appropriate copyright notice and
- disclaimer of warranty; keep intact all the notices that refer to this
- License and to the absence of any warranty; and give any other recipients of
- the Program a copy of this License along with the Program.
-
- You may charge a fee for the physical act of transferring a copy, and you may
- at your option offer warranty protection in exchange for a fee.
-
- 2. You may modify your copy or copies of the Program or any portion of it,
- thus forming a work based on the Program, and copy and distribute such
- modifications or work under the terms of Section 1 above, provided that you
- also meet all of these conditions:
-
- a) You must cause the modified files to carry prominent notices
- stating that you changed the files and the date of any change.
-
- b) You must cause any work that you distribute or publish, that in
- whole or in part contains or is derived from the Program or any part
- thereof, to be licensed as a whole at no charge to all third parties
- under the terms of this License.
-
- c) If the modified program normally reads commands interactively
- when run, you must cause it, when started running for such
- interactive use in the most ordinary way, to print or display an
- announcement including an appropriate copyright notice and a notice
- that there is no warranty (or else, saying that you provide a
- warranty) and that users may redistribute the program under these
- conditions, and telling the user how to view a copy of this License.
- (Exception: if the Program itself is interactive but does not
- normally print such an announcement, your work based on the Program
- is not required to print an announcement.)
-
- These requirements apply to the modified work as a whole. If
- identifiable sections of that work are not derived from the Program,
- and can be reasonably considered independent and separate works in
- themselves, then this License, and its terms, do not apply to those
- sections when you distribute them as separate works. But when you
- distribute the same sections as part of a whole which is a work
- based on the Program, the distribution of the whole must be on the
- terms of this License, whose permissions for other licensees extend
- to the entire whole, and thus to each and every part regardless of
- who wrote it.
-
- Thus, it is not the intent of this section to claim rights or
- contest your rights to work written entirely by you; rather, the
- intent is to exercise the right to control the distribution of
- derivative or collective works based on the Program.
-
- In addition, mere aggregation of another work not based on the
- Program with the Program (or with a work based on the Program) on a
- volume of a storage or distribution medium does not bring the other
- work under the scope of this License.
-
- 3. You may copy and distribute the Program (or a work based on it, under
- Section 2) in object code or executable form under the terms of Sections 1
- and 2 above provided that you also do one of the following:
-
- a) Accompany it with the complete corresponding machine-readable
- source code, which must be distributed under the terms of Sections
- 1 and 2 above on a medium customarily used for software interchange;
- or,
-
- b) Accompany it with a written offer, valid for at least three
- years, to give any third party, for a charge no more than your cost
- of physically performing source distribution, a complete
- machine-readable copy of the corresponding source code, to be
- distributed under the terms of Sections 1 and 2 above on a medium
- customarily used for software interchange; or,
-
- c) Accompany it with the information you received as to the offer to
- distribute corresponding source code. (This alternative is allowed
- only for noncommercial distribution and only if you received the
- program in object code or executable form with such an offer, in
- accord with Subsection b above.)
-
- The source code for a work means the preferred form of the work for
- making modifications to it. For an executable work, complete source
- code means all the source code for all modules it contains, plus any
- associated interface definition files, plus the scripts used to
- control compilation and installation of the executable. However, as
- a special exception, the source code distributed need not include
- anything that is normally distributed (in either source or binary
- form) with the major components (compiler, kernel, and so on) of the
- operating system on which the executable runs, unless that component
- itself accompanies the executable.
-
- If distribution of executable or object code is made by offering
- access to copy from a designated place, then offering equivalent
- access to copy the source code from the same place counts as
- distribution of the source code, even though third parties are not
- compelled to copy the source along with the object code.
-
- 4. You may not copy, modify, sublicense, or distribute the Program except
- as expressly provided under this License. Any attempt otherwise to copy,
- modify, sublicense or distribute the Program is void, and will automatically
- terminate your rights under this License. However, parties who have received
- copies, or rights, from you under this License will not have their licenses
- terminated so long as such parties remain in full compliance.
-
- 5. You are not required to accept this License, since you have not signed
- it. However, nothing else grants you permission to modify or distribute the
- Program or its derivative works. These actions are prohibited by law if you
- do not accept this License. Therefore, by modifying or distributing the
- Program (or any work based on the Program), you indicate your acceptance of
- this License to do so, and all its terms and conditions for copying,
- distributing or modifying the Program or works based on it.
-
- 6. Each time you redistribute the Program (or any work based on the Program),
- the recipient automatically receives a license from the original licensor to
- copy, distribute or modify the Program subject to these terms and conditions.
- You may not impose any further restrictions on the recipients' exercise of
- the rights granted herein. You are not responsible for enforcing compliance
- by third parties to this License.
-
- 7. If, as a consequence of a court judgment or allegation of patent
- infringement or for any other reason (not limited to patent issues),
- 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 distribute so as to
- satisfy simultaneously your obligations under this License and any other
- pertinent obligations, then as a consequence you may not distribute the
- Program at all. For example, if a patent license would not permit
- royalty-free redistribution of the Program by all those who receive copies
- directly or indirectly through you, then the only way you could satisfy both
- it and this License would be to refrain entirely from distribution of the
- Program.
-
- If any portion of this section is held invalid or unenforceable under any
- particular circumstance, the balance of the section is intended to apply and
- the section as a whole is intended to apply in other circumstances.
-
- It is not the purpose of this section to induce you to infringe any patents
- or other property right claims or to contest validity of any such claims;
- this section has the sole purpose of protecting the integrity of the free
- software distribution system, which is implemented by public license
- practices. Many people have made generous contributions to the wide range
- of software distributed through that system in reliance on consistent
- application of that system; it is up to the author/donor to decide if he or
- she is willing to distribute software through any other system and a licensee
- cannot impose that choice.
-
- This section is intended to make thoroughly clear what is believed to be a
- consequence of the rest of this License.
-
- 8. If the distribution and/or use of the Program is restricted in certain
- countries either by patents or by copyrighted interfaces, the original
- copyright holder who places the Program under this License may add an
- explicit geographical distribution limitation excluding those countries, so
- that distribution is permitted only in or among countries not thus excluded.
- In such case, this License incorporates the limitation as if written in the
- body of this License.
-
- 9. The Free Software Foundation may publish revised and/or new versions of
- the 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 a version number of this License which applies to it and "any later
- version", you have the option of following the terms and conditions either
- of that version or of any later version published by the Free Software
- Foundation. If the Program does not specify a version number of this License,
- you may choose any version ever published by the Free Software Foundation.
-
- 10. If you wish to incorporate parts of the Program into other free programs
- whose distribution conditions are different, write to the author to ask for
- permission. For software which is copyrighted by the Free Software
- Foundation, write to the Free Software Foundation; we sometimes make
- exceptions for this. Our decision will be guided by the two goals of
- preserving the free status of all derivatives of our free software and of
- promoting the sharing and reuse of software generally.
-
- NO WARRANTY
-
- 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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.
-
- 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL
- ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
- 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.
-
- 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 convey 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 an idea of what it does.
- Copyright (C) yyyy 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 2 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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- Also add information on how to contact you by electronic and paper mail.
-
- If the program is interactive, make it output a short notice like this when
- it starts in an interactive mode:
-
- Gnomovision version 69, Copyright (C) year name of author
- Gnomovision 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, the commands you use may be
- called something other than `show w' and `show c'; they could even be
- mouse-clicks or menu items--whatever suits your program.
-
- You should also get your employer (if you work as a programmer) or your
- school, if any, to sign a "copyright disclaimer" for the program, if
- necessary. Here is a sample; alter the names:
-
- Yoyodyne, Inc., hereby disclaims all copyright interest in the
- program `Gnomovision' (which makes passes at compilers)
- written by James Hacker.
-
- signature of Ty Coon, 1 April 1989
- Ty Coon, President of Vice
-
- This 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 Library General Public
- License instead of this License.
-