gpl.h

00001                     GNU GENERAL PUBLIC LICENSE
00002                        Version 3, 29 June 2007
00003 
00004  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
00005  Everyone is permitted to copy and distribute verbatim copies
00006  of this license document, but changing it is not allowed.
00007 
00008                             Preamble
00009 
00010   The GNU General Public License is a free, copyleft license for
00011 software and other kinds of works.
00012 
00013   The licenses for most software and other practical works are designed
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00070 
00071                        TERMS AND CONDITIONS
00072 
00073   0. Definitions.
00074 
00075   "This License" refers to version 3 of the GNU General Public License.
00076 
00077   "Copyright" also means copyright-like laws that apply to other kinds of
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00154   2. Basic Permissions.
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00156   All rights granted under this License are granted for the term of
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00180 
00181   No covered work shall be deemed part of an effective technological
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00195   4. Conveying Verbatim Copies.
00196 
00197   You may convey verbatim copies of the Program's source code as you
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00205   You may charge any price or no price for each copy that you convey,
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00208   5. Conveying Modified Source Versions.
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00210   You may convey a work based on the Program, or the modifications to
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00214     a) The work must carry prominent notices stating that you modified
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00216 
00217     b) The work must carry prominent notices stating that it is
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00221 
00222     c) You must license the entire work, as a whole, under this
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00229 
00230     d) If the work has interactive user interfaces, each must display
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00235   A compilation of a covered work with other separate and independent
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00239 "aggregate" if the compilation and its resulting copyright are not
00240 used to limit the access or legal rights of the compilation's users
00241 beyond what the individual works permit.  Inclusion of a covered work
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00244 
00245   6. Conveying Non-Source Forms.
00246 
00247   You may convey a covered work in object code form under the terms
00248 of sections 4 and 5, provided that you also convey the
00249 machine-readable Corresponding Source under the terms of this License,
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00251 
00252     a) Convey the object code in, or embodied in, a physical product
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00254     Corresponding Source fixed on a durable physical medium
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00256 
00257     b) Convey the object code in, or embodied in, a physical product
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00259     written offer, valid for at least three years and valid for as
00260     long as you offer spare parts or customer support for that product
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00264     medium customarily used for software interchange, for a price no
00265     more than your reasonable cost of physically performing this
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00269     c) Convey individual copies of the object code with a copy of the
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00274 
00275     d) Convey the object code by offering access from a designated
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00280     copy the object code is a network server, the Corresponding Source
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00287 
00288     e) Convey the object code using peer-to-peer transmission, provided
00289     you inform other peers where the object code and Corresponding
00290     Source of the work are being offered to the general public at no
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00292 
00293   A separable portion of the object code, whose source code is excluded
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00295 included in conveying the object code work.
00296 
00297   A "User Product" is either (1) a "consumer product", which means any
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00299 or household purposes, or (2) anything designed or sold for incorporation
00300 into a dwelling.  In determining whether a product is a consumer product,
00301 doubtful cases shall be resolved in favor of coverage.  For a particular
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00303 typical or common use of that class of product, regardless of the status
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00309 
00310   "Installation Information" for a User Product means any methods,
00311 procedures, authorization keys, or other information required to install
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00318   If you convey an object code work under this section in, or with, or
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00325 if neither you nor any third party retains the ability to install
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00328 
00329   The requirement to provide Installation Information does not include a
00330 requirement to continue to provide support service, warranty, or updates
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00332 the User Product in which it has been modified or installed.  Access to a
00333 network may be denied when the modification itself materially and
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00336 
00337   Corresponding Source conveyed, and Installation Information provided,
00338 in accord with this section must be in a format that is publicly
00339 documented (and with an implementation available to the public in
00340 source code form), and must require no special password or key for
00341 unpacking, reading or copying.
00342 
00343   7. Additional Terms.
00344 
00345   "Additional permissions" are terms that supplement the terms of this
00346 License by making exceptions from one or more of its conditions.
00347 Additional permissions that are applicable to the entire Program shall
00348 be treated as though they were included in this License, to the extent
00349 that they are valid under applicable law.  If additional permissions
00350 apply only to part of the Program, that part may be used separately
00351 under those permissions, but the entire Program remains governed by
00352 this License without regard to the additional permissions.
00353 
00354   When you convey a copy of a covered work, you may at your option
00355 remove any additional permissions from that copy, or from any part of
00356 it.  (Additional permissions may be written to require their own
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00360 
00361   Notwithstanding any other provision of this License, for material you
00362 add to a covered work, you may (if authorized by the copyright holders of
00363 that material) supplement the terms of this License with terms:
00364 
00365     a) Disclaiming warranty or limiting liability differently from the
00366     terms of sections 15 and 16 of this License; or
00367 
00368     b) Requiring preservation of specified reasonable legal notices or
00369     author attributions in that material or in the Appropriate Legal
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00388   All other non-permissive additional terms are considered "further
00389 restrictions" within the meaning of section 10.  If the Program as you
00390 received it, or any part of it, contains a notice stating that it is
00391 governed by this License along with a term that is a further
00392 restriction, you may remove that term.  If a license document contains
00393 a further restriction but permits relicensing or conveying under this
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00398   If you add terms to a covered work in accord with this section, you
00399 must place, in the relevant source files, a statement of the
00400 additional terms that apply to those files, or a notice indicating
00401 where to find the applicable terms.
00402 
00403   Additional terms, permissive or non-permissive, may be stated in the
00404 form of a separately written license, or stated as exceptions;
00405 the above requirements apply either way.
00406 
00407   8. Termination.
00408 
00409   You may not propagate or modify a covered work except as expressly
00410 provided under this License.  Any attempt otherwise to propagate or
00411 modify it is void, and will automatically terminate your rights under
00412 this License (including any patent licenses granted under the third
00413 paragraph of section 11).
00414 
00415   However, if you cease all violation of this License, then your
00416 license from a particular copyright holder is reinstated (a)
00417 provisionally, unless and until the copyright holder explicitly and
00418 finally terminates your license, and (b) permanently, if the copyright
00419 holder fails to notify you of the violation by some reasonable means
00420 prior to 60 days after the cessation.
00421 
00422   Moreover, your license from a particular copyright holder is
00423 reinstated permanently if the copyright holder notifies you of the
00424 violation by some reasonable means, this is the first time you have
00425 received notice of violation of this License (for any work) from that
00426 copyright holder, and you cure the violation prior to 30 days after
00427 your receipt of the notice.
00428 
00429   Termination of your rights under this section does not terminate the
00430 licenses of parties who have received copies or rights from you under
00431 this License.  If your rights have been terminated and not permanently
00432 reinstated, you do not qualify to receive new licenses for the same
00433 material under section 10.
00434 
00435   9. Acceptance Not Required for Having Copies.
00436 
00437   You are not required to accept this License in order to receive or
00438 run a copy of the Program.  Ancillary propagation of a covered work
00439 occurring solely as a consequence of using peer-to-peer transmission
00440 to receive a copy likewise does not require acceptance.  However,
00441 nothing other than this License grants you permission to propagate or
00442 modify any covered work.  These actions infringe copyright if you do
00443 not accept this License.  Therefore, by modifying or propagating a
00444 covered work, you indicate your acceptance of this License to do so.
00445 
00446   10. Automatic Licensing of Downstream Recipients.
00447 
00448   Each time you convey a covered work, the recipient automatically
00449 receives a license from the original licensors, to run, modify and
00450 propagate that work, subject to this License.  You are not responsible
00451 for enforcing compliance by third parties with this License.
00452 
00453   An "entity transaction" is a transaction transferring control of an
00454 organization, or substantially all assets of one, or subdividing an
00455 organization, or merging organizations.  If propagation of a covered
00456 work results from an entity transaction, each party to that
00457 transaction who receives a copy of the work also receives whatever
00458 licenses to the work the party's predecessor in interest had or could
00459 give under the previous paragraph, plus a right to possession of the
00460 Corresponding Source of the work from the predecessor in interest, if
00461 the predecessor has it or can get it with reasonable efforts.
00462 
00463   You may not impose any further restrictions on the exercise of the
00464 rights granted or affirmed under this License.  For example, you may
00465 not impose a license fee, royalty, or other charge for exercise of
00466 rights granted under this License, and you may not initiate litigation
00467 (including a cross-claim or counterclaim in a lawsuit) alleging that
00468 any patent claim is infringed by making, using, selling, offering for
00469 sale, or importing the Program or any portion of it.
00470 
00471   11. Patents.
00472 
00473   A "contributor" is a copyright holder who authorizes use under this
00474 License of the Program or a work on which the Program is based.  The
00475 work thus licensed is called the contributor's "contributor version".
00476 
00477   A contributor's "essential patent claims" are all patent claims
00478 owned or controlled by the contributor, whether already acquired or
00479 hereafter acquired, that would be infringed by some manner, permitted
00480 by this License, of making, using, or selling its contributor version,
00481 but do not include claims that would be infringed only as a
00482 consequence of further modification of the contributor version.  For
00483 purposes of this definition, "control" includes the right to grant
00484 patent sublicenses in a manner consistent with the requirements of
00485 this License.
00486 
00487   Each contributor grants you a non-exclusive, worldwide, royalty-free
00488 patent license under the contributor's essential patent claims, to
00489 make, use, sell, offer for sale, import and otherwise run, modify and
00490 propagate the contents of its contributor version.
00491 
00492   In the following three paragraphs, a "patent license" is any express
00493 agreement or commitment, however denominated, not to enforce a patent
00494 (such as an express permission to practice a patent or covenant not to
00495 sue for patent infringement).  To "grant" such a patent license to a
00496 party means to make such an agreement or commitment not to enforce a
00497 patent against the party.
00498 
00499   If you convey a covered work, knowingly relying on a patent license,
00500 and the Corresponding Source of the work is not available for anyone
00501 to copy, free of charge and under the terms of this License, through a
00502 publicly available network server or other readily accessible means,
00503 then you must either (1) cause the Corresponding Source to be so
00504 available, or (2) arrange to deprive yourself of the benefit of the
00505 patent license for this particular work, or (3) arrange, in a manner
00506 consistent with the requirements of this License, to extend the patent
00507 license to downstream recipients.  "Knowingly relying" means you have
00508 actual knowledge that, but for the patent license, your conveying the
00509 covered work in a country, or your recipient's use of the covered work
00510 in a country, would infringe one or more identifiable patents in that
00511 country that you have reason to believe are valid.
00512 
00513   If, pursuant to or in connection with a single transaction or
00514 arrangement, you convey, or propagate by procuring conveyance of, a
00515 covered work, and grant a patent license to some of the parties
00516 receiving the covered work authorizing them to use, propagate, modify
00517 or convey a specific copy of the covered work, then the patent license
00518 you grant is automatically extended to all recipients of the covered
00519 work and works based on it.
00520 
00521   A patent license is "discriminatory" if it does not include within
00522 the scope of its coverage, prohibits the exercise of, or is
00523 conditioned on the non-exercise of one or more of the rights that are
00524 specifically granted under this License.  You may not convey a covered
00525 work if you are a party to an arrangement with a third party that is
00526 in the business of distributing software, under which you make payment
00527 to the third party based on the extent of your activity of conveying
00528 the work, and under which the third party grants, to any of the
00529 parties who would receive the covered work from you, a discriminatory
00530 patent license (a) in connection with copies of the covered work
00531 conveyed by you (or copies made from those copies), or (b) primarily
00532 for and in connection with specific products or compilations that
00533 contain the covered work, unless you entered into that arrangement,
00534 or that patent license was granted, prior to 28 March 2007.
00535 
00536   Nothing in this License shall be construed as excluding or limiting
00537 any implied license or other defenses to infringement that may
00538 otherwise be available to you under applicable patent law.
00539 
00540   12. No Surrender of Others' Freedom.
00541 
00542   If conditions are imposed on you (whether by court order, agreement or
00543 otherwise) that contradict the conditions of this License, they do not
00544 excuse you from the conditions of this License.  If you cannot convey a
00545 covered work so as to satisfy simultaneously your obligations under this
00546 License and any other pertinent obligations, then as a consequence you may
00547 not convey it at all.  For example, if you agree to terms that obligate you
00548 to collect a royalty for further conveying from those to whom you convey
00549 the Program, the only way you could satisfy both those terms and this
00550 License would be to refrain entirely from conveying the Program.
00551 
00552   13. Use with the GNU Affero General Public License.
00553 
00554   Notwithstanding any other provision of this License, you have
00555 permission to link or combine any covered work with a work licensed
00556 under version 3 of the GNU Affero General Public License into a single
00557 combined work, and to convey the resulting work.  The terms of this
00558 License will continue to apply to the part which is the covered work,
00559 but the special requirements of the GNU Affero General Public License,
00560 section 13, concerning interaction through a network will apply to the
00561 combination as such.
00562 
00563   14. Revised Versions of this License.
00564 
00565   The Free Software Foundation may publish revised and/or new versions of
00566 the GNU General Public License from time to time.  Such new versions will
00567 be similar in spirit to the present version, but may differ in detail to
00568 address new problems or concerns.
00569 
00570   Each version is given a distinguishing version number.  If the
00571 Program specifies that a certain numbered version of the GNU General
00572 Public License "or any later version" applies to it, you have the
00573 option of following the terms and conditions either of that numbered
00574 version or of any later version published by the Free Software
00575 Foundation.  If the Program does not specify a version number of the
00576 GNU General Public License, you may choose any version ever published
00577 by the Free Software Foundation.
00578 
00579   If the Program specifies that a proxy can decide which future
00580 versions of the GNU General Public License can be used, that proxy's
00581 public statement of acceptance of a version permanently authorizes you
00582 to choose that version for the Program.
00583 
00584   Later license versions may give you additional or different
00585 permissions.  However, no additional obligations are imposed on any
00586 author or copyright holder as a result of your choosing to follow a
00587 later version.
00588 
00589   15. Disclaimer of Warranty.
00590 
00591   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
00592 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
00593 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
00594 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
00595 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00596 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
00597 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
00598 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
00599 
00600   16. Limitation of Liability.
00601 
00602   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
00603 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
00604 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
00605 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
00606 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
00607 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
00608 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
00609 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
00610 SUCH DAMAGES.
00611 
00612   17. Interpretation of Sections 15 and 16.
00613 
00614   If the disclaimer of warranty and limitation of liability provided
00615 above cannot be given local legal effect according to their terms,
00616 reviewing courts shall apply local law that most closely approximates
00617 an absolute waiver of all civil liability in connection with the
00618 Program, unless a warranty or assumption of liability accompanies a
00619 copy of the Program in return for a fee.
00620 
00621                      END OF TERMS AND CONDITIONS
00622 
00623             How to Apply These Terms to Your New Programs
00624 
00625   If you develop a new program, and you want it to be of the greatest
00626 possible use to the public, the best way to achieve this is to make it
00627 free software which everyone can redistribute and change under these terms.
00628 
00629   To do so, attach the following notices to the program.  It is safest
00630 to attach them to the start of each source file to most effectively
00631 state the exclusion of warranty; and each file should have at least
00632 the "copyright" line and a pointer to where the full notice is found.
00633 
00634     <one line to give the program's name and a brief idea of what it does.>
00635     Copyright (C) <year>  <name of author>
00636 
00637     This program is free software: you can redistribute it and/or modify
00638     it under the terms of the GNU General Public License as published by
00639     the Free Software Foundation, either version 3 of the License, or
00640     (at your option) any later version.
00641 
00642     This program is distributed in the hope that it will be useful,
00643     but WITHOUT ANY WARRANTY; without even the implied warranty of
00644     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00645     GNU General Public License for more details.
00646 
00647     You should have received a copy of the GNU General Public License
00648     along with this program.  If not, see <http://www.gnu.org/licenses/>.
00649 
00650 Also add information on how to contact you by electronic and paper mail.
00651 
00652   If the program does terminal interaction, make it output a short
00653 notice like this when it starts in an interactive mode:
00654 
00655     <program>  Copyright (C) <year>  <name of author>
00656     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
00657     This is free software, and you are welcome to redistribute it
00658     under certain conditions; type `show c' for details.
00659 
00660 The hypothetical commands `show w' and `show c' should show the appropriate
00661 parts of the General Public License.  Of course, your program's commands
00662 might be different; for a GUI interface, you would use an "about box".
00663 
00664   You should also get your employer (if you work as a programmer) or school,
00665 if any, to sign a "copyright disclaimer" for the program, if necessary.
00666 For more information on this, and how to apply and follow the GNU GPL, see
00667 <http://www.gnu.org/licenses/>.
00668 
00669   The GNU General Public License does not permit incorporating your program
00670 into proprietary programs.  If your program is a subroutine library, you
00671 may consider it more useful to permit linking proprietary applications with
00672 the library.  If this is what you want to do, use the GNU Lesser General
00673 Public License instead of this License.  But first, please read
00674 <http://www.gnu.org/philosophy/why-not-lgpl.html>.