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      1 EXT2ED is hereby placed under the terms of the GNU General Public License.
      2 Follows the GNU license.
      3 
      4 Gadi Oxman, August 1995
      5 
      6 ---------------------------------------------------------------------------
      7 
      8 		    GNU GENERAL PUBLIC LICENSE
      9 		       Version 2, June 1991
     10 
     11  Copyright (C) 1989, 1991 Free Software Foundation, Inc.
     12                           675 Mass Ave, Cambridge, MA 02139, USA
     13  Everyone is permitted to copy and distribute verbatim copies
     14  of this license document, but changing it is not allowed.
     15 
     16 			    Preamble
     17 
     18   The licenses for most software are designed to take away your
     19 freedom to share and change it.  By contrast, the GNU General Public
     20 License is intended to guarantee your freedom to share and change free
     21 software--to make sure the software is free for all its users.  This
     22 General Public License applies to most of the Free Software
     23 Foundation's software and to any other program whose authors commit to
     24 using it.  (Some other Free Software Foundation software is covered by
     25 the GNU Library General Public License instead.)  You can apply it to
     26 your programs, too.
     27 
     28   When we speak of free software, we are referring to freedom, not
     29 price.  Our General Public Licenses are designed to make sure that you
     30 have the freedom to distribute copies of free software (and charge for
     31 this service if you wish), that you receive source code or can get it
     32 if you want it, that you can change the software or use pieces of it
     33 in new free programs; and that you know you can do these things.
     34 
     35   To protect your rights, we need to make restrictions that forbid
     36 anyone to deny you these rights or to ask you to surrender the rights.
     37 These restrictions translate to certain responsibilities for you if you
     38 distribute copies of the software, or if you modify it.
     39 
     40   For example, if you distribute copies of such a program, whether
     41 gratis or for a fee, you must give the recipients all the rights that
     42 you have.  You must make sure that they, too, receive or can get the
     43 source code.  And you must show them these terms so they know their
     44 rights.
     45 
     46   We protect your rights with two steps: (1) copyright the software, and
     47 (2) offer you this license which gives you legal permission to copy,
     48 distribute and/or modify the software.
     49 
     50   Also, for each author's protection and ours, we want to make certain
     51 that everyone understands that there is no warranty for this free
     52 software.  If the software is modified by someone else and passed on, we
     53 want its recipients to know that what they have is not the original, so
     54 that any problems introduced by others will not reflect on the original
     55 authors' reputations.
     56 
     57   Finally, any free program is threatened constantly by software
     58 patents.  We wish to avoid the danger that redistributors of a free
     59 program will individually obtain patent licenses, in effect making the
     60 program proprietary.  To prevent this, we have made it clear that any
     61 patent must be licensed for everyone's free use or not licensed at all.
     62 
     63   The precise terms and conditions for copying, distribution and
     64 modification follow.
     65 
     67 		    GNU GENERAL PUBLIC LICENSE
     68    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
     69 
     70   0. This License applies to any program or other work which contains
     71 a notice placed by the copyright holder saying it may be distributed
     72 under the terms of this General Public License.  The "Program", below,
     73 refers to any such program or work, and a "work based on the Program"
     74 means either the Program or any derivative work under copyright law:
     75 that is to say, a work containing the Program or a portion of it,
     76 either verbatim or with modifications and/or translated into another
     77 language.  (Hereinafter, translation is included without limitation in
     78 the term "modification".)  Each licensee is addressed as "you".
     79 
     80 Activities other than copying, distribution and modification are not
     81 covered by this License; they are outside its scope.  The act of
     82 running the Program is not restricted, and the output from the Program
     83 is covered only if its contents constitute a work based on the
     84 Program (independent of having been made by running the Program).
     85 Whether that is true depends on what the Program does.
     86 
     87   1. You may copy and distribute verbatim copies of the Program's
     88 source code as you receive it, in any medium, provided that you
     89 conspicuously and appropriately publish on each copy an appropriate
     90 copyright notice and disclaimer of warranty; keep intact all the
     91 notices that refer to this License and to the absence of any warranty;
     92 and give any other recipients of the Program a copy of this License
     93 along with the Program.
     94 
     95 You may charge a fee for the physical act of transferring a copy, and
     96 you may at your option offer warranty protection in exchange for a fee.
     97 
     98   2. You may modify your copy or copies of the Program or any portion
     99 of it, thus forming a work based on the Program, and copy and
    100 distribute such modifications or work under the terms of Section 1
    101 above, provided that you also meet all of these conditions:
    102 
    103     a) You must cause the modified files to carry prominent notices
    104     stating that you changed the files and the date of any change.
    105 
    106     b) You must cause any work that you distribute or publish, that in
    107     whole or in part contains or is derived from the Program or any
    108     part thereof, to be licensed as a whole at no charge to all third
    109     parties under the terms of this License.
    110 
    111     c) If the modified program normally reads commands interactively
    112     when run, you must cause it, when started running for such
    113     interactive use in the most ordinary way, to print or display an
    114     announcement including an appropriate copyright notice and a
    115     notice that there is no warranty (or else, saying that you provide
    116     a warranty) and that users may redistribute the program under
    117     these conditions, and telling the user how to view a copy of this
    118     License.  (Exception: if the Program itself is interactive but
    119     does not normally print such an announcement, your work based on
    120     the Program is not required to print an announcement.)
    121 
    123 These requirements apply to the modified work as a whole.  If
    124 identifiable sections of that work are not derived from the Program,
    125 and can be reasonably considered independent and separate works in
    126 themselves, then this License, and its terms, do not apply to those
    127 sections when you distribute them as separate works.  But when you
    128 distribute the same sections as part of a whole which is a work based
    129 on the Program, the distribution of the whole must be on the terms of
    130 this License, whose permissions for other licensees extend to the
    131 entire whole, and thus to each and every part regardless of who wrote it.
    132 
    133 Thus, it is not the intent of this section to claim rights or contest
    134 your rights to work written entirely by you; rather, the intent is to
    135 exercise the right to control the distribution of derivative or
    136 collective works based on the Program.
    137 
    138 In addition, mere aggregation of another work not based on the Program
    139 with the Program (or with a work based on the Program) on a volume of
    140 a storage or distribution medium does not bring the other work under
    141 the scope of this License.
    142 
    143   3. You may copy and distribute the Program (or a work based on it,
    144 under Section 2) in object code or executable form under the terms of
    145 Sections 1 and 2 above provided that you also do one of the following:
    146 
    147     a) Accompany it with the complete corresponding machine-readable
    148     source code, which must be distributed under the terms of Sections
    149     1 and 2 above on a medium customarily used for software interchange; or,
    150 
    151     b) Accompany it with a written offer, valid for at least three
    152     years, to give any third party, for a charge no more than your
    153     cost of physically performing source distribution, a complete
    154     machine-readable copy of the corresponding source code, to be
    155     distributed under the terms of Sections 1 and 2 above on a medium
    156     customarily used for software interchange; or,
    157 
    158     c) Accompany it with the information you received as to the offer
    159     to distribute corresponding source code.  (This alternative is
    160     allowed only for noncommercial distribution and only if you
    161     received the program in object code or executable form with such
    162     an offer, in accord with Subsection b above.)
    163 
    164 The source code for a work means the preferred form of the work for
    165 making modifications to it.  For an executable work, complete source
    166 code means all the source code for all modules it contains, plus any
    167 associated interface definition files, plus the scripts used to
    168 control compilation and installation of the executable.  However, as a
    169 special exception, the source code distributed need not include
    170 anything that is normally distributed (in either source or binary
    171 form) with the major components (compiler, kernel, and so on) of the
    172 operating system on which the executable runs, unless that component
    173 itself accompanies the executable.
    174 
    175 If distribution of executable or object code is made by offering
    176 access to copy from a designated place, then offering equivalent
    177 access to copy the source code from the same place counts as
    178 distribution of the source code, even though third parties are not
    179 compelled to copy the source along with the object code.
    180 
    182   4. You may not copy, modify, sublicense, or distribute the Program
    183 except as expressly provided under this License.  Any attempt
    184 otherwise to copy, modify, sublicense or distribute the Program is
    185 void, and will automatically terminate your rights under this License.
    186 However, parties who have received copies, or rights, from you under
    187 this License will not have their licenses terminated so long as such
    188 parties remain in full compliance.
    189 
    190   5. You are not required to accept this License, since you have not
    191 signed it.  However, nothing else grants you permission to modify or
    192 distribute the Program or its derivative works.  These actions are
    193 prohibited by law if you do not accept this License.  Therefore, by
    194 modifying or distributing the Program (or any work based on the
    195 Program), you indicate your acceptance of this License to do so, and
    196 all its terms and conditions for copying, distributing or modifying
    197 the Program or works based on it.
    198 
    199   6. Each time you redistribute the Program (or any work based on the
    200 Program), the recipient automatically receives a license from the
    201 original licensor to copy, distribute or modify the Program subject to
    202 these terms and conditions.  You may not impose any further
    203 restrictions on the recipients' exercise of the rights granted herein.
    204 You are not responsible for enforcing compliance by third parties to
    205 this License.
    206 
    207   7. If, as a consequence of a court judgment or allegation of patent
    208 infringement or for any other reason (not limited to patent issues),
    209 conditions are imposed on you (whether by court order, agreement or
    210 otherwise) that contradict the conditions of this License, they do not
    211 excuse you from the conditions of this License.  If you cannot
    212 distribute so as to satisfy simultaneously your obligations under this
    213 License and any other pertinent obligations, then as a consequence you
    214 may not distribute the Program at all.  For example, if a patent
    215 license would not permit royalty-free redistribution of the Program by
    216 all those who receive copies directly or indirectly through you, then
    217 the only way you could satisfy both it and this License would be to
    218 refrain entirely from distribution of the Program.
    219 
    220 If any portion of this section is held invalid or unenforceable under
    221 any particular circumstance, the balance of the section is intended to
    222 apply and the section as a whole is intended to apply in other
    223 circumstances.
    224 
    225 It is not the purpose of this section to induce you to infringe any
    226 patents or other property right claims or to contest validity of any
    227 such claims; this section has the sole purpose of protecting the
    228 integrity of the free software distribution system, which is
    229 implemented by public license practices.  Many people have made
    230 generous contributions to the wide range of software distributed
    231 through that system in reliance on consistent application of that
    232 system; it is up to the author/donor to decide if he or she is willing
    233 to distribute software through any other system and a licensee cannot
    234 impose that choice.
    235 
    236 This section is intended to make thoroughly clear what is believed to
    237 be a consequence of the rest of this License.
    238 
    240   8. If the distribution and/or use of the Program is restricted in
    241 certain countries either by patents or by copyrighted interfaces, the
    242 original copyright holder who places the Program under this License
    243 may add an explicit geographical distribution limitation excluding
    244 those countries, so that distribution is permitted only in or among
    245 countries not thus excluded.  In such case, this License incorporates
    246 the limitation as if written in the body of this License.
    247 
    248   9. The Free Software Foundation may publish revised and/or new versions
    249 of the General Public License from time to time.  Such new versions will
    250 be similar in spirit to the present version, but may differ in detail to
    251 address new problems or concerns.
    252 
    253 Each version is given a distinguishing version number.  If the Program
    254 specifies a version number of this License which applies to it and "any
    255 later version", you have the option of following the terms and conditions
    256 either of that version or of any later version published by the Free
    257 Software Foundation.  If the Program does not specify a version number of
    258 this License, you may choose any version ever published by the Free Software
    259 Foundation.
    260 
    261   10. If you wish to incorporate parts of the Program into other free
    262 programs whose distribution conditions are different, write to the author
    263 to ask for permission.  For software which is copyrighted by the Free
    264 Software Foundation, write to the Free Software Foundation; we sometimes
    265 make exceptions for this.  Our decision will be guided by the two goals
    266 of preserving the free status of all derivatives of our free software and
    267 of promoting the sharing and reuse of software generally.
    268 
    269 			    NO WARRANTY
    270 
    271   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
    272 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
    273 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
    274 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
    275 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    276 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
    277 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
    278 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
    279 REPAIR OR CORRECTION.
    280 
    281   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
    282 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
    283 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
    284 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
    285 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
    286 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
    287 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
    288 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
    289 POSSIBILITY OF SUCH DAMAGES.
    290 
    291 		     END OF TERMS AND CONDITIONS
    292 
    294 	Appendix: How to Apply These Terms to Your New Programs
    295 
    296   If you develop a new program, and you want it to be of the greatest
    297 possible use to the public, the best way to achieve this is to make it
    298 free software which everyone can redistribute and change under these terms.
    299 
    300   To do so, attach the following notices to the program.  It is safest
    301 to attach them to the start of each source file to most effectively
    302 convey the exclusion of warranty; and each file should have at least
    303 the "copyright" line and a pointer to where the full notice is found.
    304 
    305     <one line to give the program's name and a brief idea of what it does.>
    306     Copyright (C) 19yy  <name of author>
    307 
    308     This program is free software; you can redistribute it and/or modify
    309     it under the terms of the GNU General Public License as published by
    310     the Free Software Foundation; either version 2 of the License, or
    311     (at your option) any later version.
    312 
    313     This program is distributed in the hope that it will be useful,
    314     but WITHOUT ANY WARRANTY; without even the implied warranty of
    315     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    316     GNU General Public License for more details.
    317 
    318     You should have received a copy of the GNU General Public License
    319     along with this program; if not, write to the Free Software
    320     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    321 
    322 Also add information on how to contact you by electronic and paper mail.
    323 
    324 If the program is interactive, make it output a short notice like this
    325 when it starts in an interactive mode:
    326 
    327     Gnomovision version 69, Copyright (C) 19yy name of author
    328     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    329     This is free software, and you are welcome to redistribute it
    330     under certain conditions; type `show c' for details.
    331 
    332 The hypothetical commands `show w' and `show c' should show the appropriate
    333 parts of the General Public License.  Of course, the commands you use may
    334 be called something other than `show w' and `show c'; they could even be
    335 mouse-clicks or menu items--whatever suits your program.
    336 
    337 You should also get your employer (if you work as a programmer) or your
    338 school, if any, to sign a "copyright disclaimer" for the program, if
    339 necessary.  Here is a sample; alter the names:
    340 
    341   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
    342   `Gnomovision' (which makes passes at compilers) written by James Hacker.
    343 
    344   <signature of Ty Coon>, 1 April 1989
    345   Ty Coon, President of Vice
    346 
    347 This General Public License does not permit incorporating your program into
    348 proprietary programs.  If your program is a subroutine library, you may
    349 consider it more useful to permit linking proprietary applications with the
    350 library.  If this is what you want to do, use the GNU Library General
    351 Public License instead of this License.
    352