Return to copyleft.txt CVS log

Up to [PGP] / pgp

Annotation of pgp/copyleft.txt, revision 1.1

1.1     ! root        1:                    GNU GENERAL PUBLIC LICENSE
        !             2:                     Version 1, February 1989
        !             3: 
        !             4:  Copyright (C) 1989 Free Software Foundation, Inc.
        !             5:                     675 Mass Ave, Cambridge, MA 02139, USA
        !             6:  Everyone is permitted to copy and distribute verbatim copies
        !             7:  of this license document, but changing it is not allowed.
        !             8: 
        !             9:                            Preamble
        !            10: 
        !            11:   The license agreements of most software companies try to keep users
        !            12: at the mercy of those companies.  By contrast, our General Public
        !            13: License is intended to guarantee your freedom to share and change free
        !            14: software--to make sure the software is free for all its users.  The
        !            15: General Public License applies to the Free Software Foundation's
        !            16: software and to any other program whose authors commit to using it.
        !            17: You can use it for your programs, too.
        !            18: 
        !            19:   When we speak of free software, we are referring to freedom, not
        !            20: price.  Specifically, the General Public License is designed to make
        !            21: sure that you have the freedom to give away or sell copies of free
        !            22: software, that you receive source code or can get it if you want it,
        !            23: that you can change the software or use pieces of it in new free
        !            24: programs; and that you know you can do these things.
        !            25: 
        !            26:   To protect your rights, we need to make restrictions that forbid
        !            27: anyone to deny you these rights or to ask you to surrender the rights.
        !            28: These restrictions translate to certain responsibilities for you if you
        !            29: distribute copies of the software, or if you modify it.
        !            30: 
        !            31:   For example, if you distribute copies of a such a program, whether
        !            32: gratis or for a fee, you must give the recipients all the rights that
        !            33: you have.  You must make sure that they, too, receive or can get the
        !            34: source code.  And you must tell them their rights.
        !            35: 
        !            36:   We protect your rights with two steps: (1) copyright the software, and
        !            37: (2) offer you this license which gives you legal permission to copy,
        !            38: distribute and/or modify the software.
        !            39: 
        !            40:   Also, for each author's protection and ours, we want to make certain
        !            41: that everyone understands that there is no warranty for this free
        !            42: software.  If the software is modified by someone else and passed on, we
        !            43: want its recipients to know that what they have is not the original, so
        !            44: that any problems introduced by others will not reflect on the original
        !            45: authors' reputations.
        !            46: 
        !            47:   The precise terms and conditions for copying, distribution and
        !            48: modification follow.
        !            49: 
        !            50:                    GNU GENERAL PUBLIC LICENSE
        !            51:    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
        !            52: 
        !            53:   0. This License Agreement applies to any program or other work which
        !            54: contains a notice placed by the copyright holder saying it may be
        !            55: distributed under the terms of this General Public License.  The
        !            56: "Program", below, refers to any such program or work, and a "work based
        !            57: on the Program" means either the Program or any work containing the
        !            58: Program or a portion of it, either verbatim or with modifications.  Each
        !            59: licensee is addressed as "you".
        !            60: 
        !            61:   1. You may copy and distribute verbatim copies of the Program's source
        !            62: code as you receive it, in any medium, provided that you conspicuously and
        !            63: appropriately publish on each copy an appropriate copyright notice and
        !            64: disclaimer of warranty; keep intact all the notices that refer to this
        !            65: General Public License and to the absence of any warranty; and give any
        !            66: other recipients of the Program a copy of this General Public License
        !            67: along with the Program.  You may charge a fee for the physical act of
        !            68: transferring a copy.
        !            69: 
        !            70:   2. You may modify your copy or copies of the Program or any portion of
        !            71: it, and copy and distribute such modifications under the terms of Paragraph
        !            72: 1 above, provided that you also do the following:
        !            73: 
        !            74:     a) cause the modified files to carry prominent notices stating that
        !            75:     you changed the files and the date of any change; and
        !            76: 
        !            77:     b) cause the whole of any work that you distribute or publish, that
        !            78:     in whole or in part contains the Program or any part thereof, either
        !            79:     with or without modifications, to be licensed at no charge to all
        !            80:     third parties under the terms of this General Public License (except
        !            81:     that you may choose to grant warranty protection to some or all
        !            82:     third parties, at your option).
        !            83: 
        !            84:     c) If the modified program normally reads commands interactively when
        !            85:     run, you must cause it, when started running for such interactive use
        !            86:     in the simplest and most usual way, to print or display an
        !            87:     announcement including an appropriate copyright notice and a notice
        !            88:     that there is no warranty (or else, saying that you provide a
        !            89:     warranty) and that users may redistribute the program under these
        !            90:     conditions, and telling the user how to view a copy of this General
        !            91:     Public License.
        !            92: 
        !            93:     d) You may charge a fee for the physical act of transferring a
        !            94:     copy, and you may at your option offer warranty protection in
        !            95:     exchange for a fee.
        !            96: 
        !            97: Mere aggregation of another independent work with the Program (or its
        !            98: derivative) on a volume of a storage or distribution medium does not bring
        !            99: the other work under the scope of these terms.
        !           100: 
        !           101:   3. You may copy and distribute the Program (or a portion or derivative of
        !           102: it, under Paragraph 2) in object code or executable form under the terms of
        !           103: Paragraphs 1 and 2 above provided that you also do one of the following:
        !           104: 
        !           105:     a) accompany it with the complete corresponding machine-readable
        !           106:     source code, which must be distributed under the terms of
        !           107:     Paragraphs 1 and 2 above; or,
        !           108: 
        !           109:     b) accompany it with a written offer, valid for at least three
        !           110:     years, to give any third party free (except for a nominal charge
        !           111:     for the cost of distribution) a complete machine-readable copy of the
        !           112:     corresponding source code, to be distributed under the terms of
        !           113:     Paragraphs 1 and 2 above; or,
        !           114: 
        !           115:     c) accompany it with the information you received as to where the
        !           116:     corresponding source code may be obtained.  (This alternative is
        !           117:     allowed only for noncommercial distribution and only if you
        !           118:     received the program in object code or executable form alone.)
        !           119: 
        !           120: Source code for a work means the preferred form of the work for making
        !           121: modifications to it.  For an executable file, complete source code means
        !           122: all the source code for all modules it contains; but, as a special
        !           123: exception, it need not include source code for modules which are standard
        !           124: libraries that accompany the operating system on which the executable
        !           125: file runs, or for standard header files or definitions files that
        !           126: accompany that operating system.
        !           127: 
        !           128:   4. You may not copy, modify, sublicense, distribute or transfer the
        !           129: Program except as expressly provided under this General Public License.
        !           130: Any attempt otherwise to copy, modify, sublicense, distribute or transfer
        !           131: the Program is void, and will automatically terminate your rights to use
        !           132: the Program under this License.  However, parties who have received
        !           133: copies, or rights to use copies, from you under this General Public
        !           134: License will not have their licenses terminated so long as such parties
        !           135: remain in full compliance.
        !           136: 
        !           137:   5. By copying, distributing or modifying the Program (or any work based
        !           138: on the Program) you indicate your acceptance of this license to do so,
        !           139: and all its terms and conditions.
        !           140: 
        !           141:   6. Each time you redistribute the Program (or any work based on the
        !           142: Program), the recipient automatically receives a license from the original
        !           143: licensor to copy, distribute or modify the Program subject to these
        !           144: terms and conditions.  You may not impose any further restrictions on the
        !           145: recipients' exercise of the rights granted herein.
        !           146: 
        !           147:   7. The Free Software Foundation may publish revised and/or new versions
        !           148: of the General Public License from time to time.  Such new versions will
        !           149: be similar in spirit to the present version, but may differ in detail to
        !           150: address new problems or concerns.
        !           151: 
        !           152: Each version is given a distinguishing version number.  If the Program
        !           153: specifies a version number of the license which applies to it and "any
        !           154: later version", you have the option of following the terms and conditions
        !           155: either of that version or of any later version published by the Free
        !           156: Software Foundation.  If the Program does not specify a version number of
        !           157: the license, you may choose any version ever published by the Free Software
        !           158: Foundation.
        !           159: 
        !           160:   8. If you wish to incorporate parts of the Program into other free
        !           161: programs whose distribution conditions are different, write to the author
        !           162: to ask for permission.  For software which is copyrighted by the Free
        !           163: Software Foundation, write to the Free Software Foundation; we sometimes
        !           164: make exceptions for this.  Our decision will be guided by the two goals
        !           165: of preserving the free status of all derivatives of our free software and
        !           166: of promoting the sharing and reuse of software generally.
        !           167: 
        !           168:                            NO WARRANTY
        !           169: 
        !           170:   9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
        !           171: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
        !           172: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
        !           173: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
        !           174: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
        !           175: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
        !           176: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
        !           177: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
        !           178: REPAIR OR CORRECTION.
        !           179: 
        !           180:   10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
        !           181: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
        !           182: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
        !           183: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
        !           184: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
        !           185: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
        !           186: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
        !           187: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
        !           188: POSSIBILITY OF SUCH DAMAGES.
        !           189: 
        !           190:                     END OF TERMS AND CONDITIONS
        !           191: 
        !           192:        Appendix: How to Apply These Terms to Your New Programs
        !           193: 
        !           194:   If you develop a new program, and you want it to be of the greatest
        !           195: possible use to humanity, the best way to achieve this is to make it
        !           196: free software which everyone can redistribute and change under these
        !           197: terms.
        !           198: 
        !           199:   To do so, attach the following notices to the program.  It is safest to
        !           200: attach them to the start of each source file to most effectively convey
        !           201: the exclusion of warranty; and each file should have at least the
        !           202: "copyright" line and a pointer to where the full notice is found.
        !           203: 
        !           204:     <one line to give the program's name and a brief idea of what it does.>
        !           205:     Copyright (C) 19yy  <name of author>
        !           206: 
        !           207:     This program is free software; you can redistribute it and/or modify
        !           208:     it under the terms of the GNU General Public License as published by
        !           209:     the Free Software Foundation; either version 1, or (at your option)
        !           210:     any later version.
        !           211: 
        !           212:     This program is distributed in the hope that it will be useful,
        !           213:     but WITHOUT ANY WARRANTY; without even the implied warranty of
        !           214:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !           215:     GNU General Public License for more details.
        !           216: 
        !           217:     You should have received a copy of the GNU General Public License
        !           218:     along with this program; if not, write to the Free Software
        !           219:     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
        !           220: 
        !           221: Also add information on how to contact you by electronic and paper mail.
        !           222: 
        !           223: If the program is interactive, make it output a short notice like this
        !           224: when it starts in an interactive mode:
        !           225: 
        !           226:     Gnomovision version 69, Copyright (C) 19xx name of author
        !           227:     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
        !           228:     This is free software, and you are welcome to redistribute it
        !           229:     under certain conditions; type `show c' for details.
        !           230: 
        !           231: The hypothetical commands `show w' and `show c' should show the
        !           232: appropriate parts of the General Public License.  Of course, the
        !           233: commands you use may be called something other than `show w' and `show
        !           234: c'; they could even be mouse-clicks or menu items--whatever suits your
        !           235: program.
        !           236: 
        !           237: You should also get your employer (if you work as a programmer) or your
        !           238: school, if any, to sign a "copyright disclaimer" for the program, if
        !           239: necessary.  Here a sample; alter the names:
        !           240: 
        !           241:   Yoyodyne, Inc., hereby disclaims all copyright interest in the
        !           242:   program `Gnomovision' (a program to direct compilers to make passes
        !           243:   at assemblers) written by James Hacker.
        !           244: 
        !           245:   <signature of Ty Coon>, 1 April 1989
        !           246:   Ty Coon, President of Vice
        !           247: 
        !           248: That's all there is to it!

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.