xfreecd

Audio CD player for X
git clone https://www.brianlane.com/git/xfreecd
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COPYING (17983B)


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