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1Copyright (c) 2003 Greenstone Digital Libraries, University of Waikato
2
3Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, and distribute copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the GPL and the following conditions (where not in conflict with the GPL):
4
5The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software, as will all other notices contained in the copyrights directory.
6
7THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDER (Greenstone Digital Libraries, University of Waikato), OR THEIR STAFF BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
8
9In addition, as a special exception, the copyright holders give permission to link the code of portions
10of this program with the OpenSSL library. You must obey the GNU General Public License in all respects
11for all of the code used other than OpenSSL. If you modify file(s) with this exception, you may extend
12this exception to your version of the file(s), but you are not obligated to do so. If you do not wish to
13do so, delete this exception statement from your version. If you delete this exception statement from all
14source files in the program, then also delete it here.
15
16Except as contained in this notice, the name of Greenstone Digital Libraries, University of Waikato shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the Greenstone Digital Libraries, University of Waikato.
17
18Distributed under GPL, as follows:
19
20
21            GNU GENERAL PUBLIC LICENSE
22               Version 2, June 1991
23
24 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
25                          675 Mass Ave, Cambridge, MA 02139, USA
26 Everyone is permitted to copy and distribute verbatim copies
27 of this license document, but changing it is not allowed.
28
29                Preamble
30
31  The licenses for most software are designed to take away your
32freedom to share and change it.  By contrast, the GNU General Public
33License is intended to guarantee your freedom to share and change free
34software--to make sure the software is free for all its users.  This
35General Public License applies to most of the Free Software
36Foundation's software and to any other program whose authors commit to
37using it.  (Some other Free Software Foundation software is covered by
38the GNU Library General Public License instead.)  You can apply it to
39your programs, too.
40
41  When we speak of free software, we are referring to freedom, not
42price.  Our General Public Licenses are designed to make sure that you
43have the freedom to distribute copies of free software (and charge for
44this service if you wish), that you receive source code or can get it
45if you want it, that you can change the software or use pieces of it
46in new free programs; and that you know you can do these things.
47
48  To protect your rights, we need to make restrictions that forbid
49anyone to deny you these rights or to ask you to surrender the rights.
50These restrictions translate to certain responsibilities for you if you
51distribute copies of the software, or if you modify it.
52
53  For example, if you distribute copies of such a program, whether
54gratis or for a fee, you must give the recipients all the rights that
55you have.  You must make sure that they, too, receive or can get the
56source code.  And you must show them these terms so they know their
57rights.
58
59  We protect your rights with two steps: (1) copyright the software, and
60(2) offer you this license which gives you legal permission to copy,
61distribute and/or modify the software.
62
63  Also, for each author's protection and ours, we want to make certain
64that everyone understands that there is no warranty for this free
65software.  If the software is modified by someone else and passed on, we
66want its recipients to know that what they have is not the original, so
67that any problems introduced by others will not reflect on the original
68authors' reputations.
69
70  Finally, any free program is threatened constantly by software
71patents.  We wish to avoid the danger that redistributors of a free
72program will individually obtain patent licenses, in effect making the
73program proprietary.  To prevent this, we have made it clear that any
74patent must be licensed for everyone's free use or not licensed at all.
75
76  The precise terms and conditions for copying, distribution and
77modification follow.
78
79            GNU GENERAL PUBLIC LICENSE
80   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
81
82  0. This License applies to any program or other work which contains
83a notice placed by the copyright holder saying it may be distributed
84under the terms of this General Public License.  The "Program", below,
85refers to any such program or work, and a "work based on the Program"
86means either the Program or any derivative work under copyright law:
87that is to say, a work containing the Program or a portion of it,
88either verbatim or with modifications and/or translated into another
89language.  (Hereinafter, translation is included without limitation in
90the term "modification".)  Each licensee is addressed as "you".
91
92Activities other than copying, distribution and modification are not
93covered by this License; they are outside its scope.  The act of
94running the Program is not restricted, and the output from the Program
95is covered only if its contents constitute a work based on the
96Program (independent of having been made by running the Program).
97Whether that is true depends on what the Program does.
98
99  1. You may copy and distribute verbatim copies of the Program's
100source code as you receive it, in any medium, provided that you
101conspicuously and appropriately publish on each copy an appropriate
102copyright notice and disclaimer of warranty; keep intact all the
103notices that refer to this License and to the absence of any warranty;
104and give any other recipients of the Program a copy of this License
105along with the Program.
106
107You may charge a fee for the physical act of transferring a copy, and
108you may at your option offer warranty protection in exchange for a fee.
109
110  2. You may modify your copy or copies of the Program or any portion
111of it, thus forming a work based on the Program, and copy and
112distribute such modifications or work under the terms of Section 1
113above, provided that you also meet all of these conditions:
114
115    a) You must cause the modified files to carry prominent notices
116    stating that you changed the files and the date of any change.
117
118    b) You must cause any work that you distribute or publish, that in
119    whole or in part contains or is derived from the Program or any
120    part thereof, to be licensed as a whole at no charge to all third
121    parties under the terms of this License.
122
123    c) If the modified program normally reads commands interactively
124    when run, you must cause it, when started running for such
125    interactive use in the most ordinary way, to print or display an
126    announcement including an appropriate copyright notice and a
127    notice that there is no warranty (or else, saying that you provide
128    a warranty) and that users may redistribute the program under
129    these conditions, and telling the user how to view a copy of this
130    License.  (Exception: if the Program itself is interactive but
131    does not normally print such an announcement, your work based on
132    the Program is not required to print an announcement.)
133
134These requirements apply to the modified work as a whole.  If
135identifiable sections of that work are not derived from the Program,
136and can be reasonably considered independent and separate works in
137themselves, then this License, and its terms, do not apply to those
138sections when you distribute them as separate works.  But when you
139distribute the same sections as part of a whole which is a work based
140on the Program, the distribution of the whole must be on the terms of
141this License, whose permissions for other licensees extend to the
142entire whole, and thus to each and every part regardless of who wrote it.
143
144Thus, it is not the intent of this section to claim rights or contest
145your rights to work written entirely by you; rather, the intent is to
146exercise the right to control the distribution of derivative or
147collective works based on the Program.
148
149In addition, mere aggregation of another work not based on the Program
150with the Program (or with a work based on the Program) on a volume of
151a storage or distribution medium does not bring the other work under
152the scope of this License.
153
154  3. You may copy and distribute the Program (or a work based on it,
155under Section 2) in object code or executable form under the terms of
156Sections 1 and 2 above provided that you also do one of the following:
157
158    a) Accompany it with the complete corresponding machine-readable
159    source code, which must be distributed under the terms of Sections
160    1 and 2 above on a medium customarily used for software interchange; or,
161
162    b) Accompany it with a written offer, valid for at least three
163    years, to give any third party, for a charge no more than your
164    cost of physically performing source distribution, a complete
165    machine-readable copy of the corresponding source code, to be
166    distributed under the terms of Sections 1 and 2 above on a medium
167    customarily used for software interchange; or,
168
169    c) Accompany it with the information you received as to the offer
170    to distribute corresponding source code.  (This alternative is
171    allowed only for noncommercial distribution and only if you
172    received the program in object code or executable form with such
173    an offer, in accord with Subsection b above.)
174
175The source code for a work means the preferred form of the work for
176making modifications to it.  For an executable work, complete source
177code means all the source code for all modules it contains, plus any
178associated interface definition files, plus the scripts used to
179control compilation and installation of the executable.  However, as a
180special exception, the source code distributed need not include
181anything that is normally distributed (in either source or binary
182form) with the major components (compiler, kernel, and so on) of the
183operating system on which the executable runs, unless that component
184itself accompanies the executable.
185
186If distribution of executable or object code is made by offering
187access to copy from a designated place, then offering equivalent
188access to copy the source code from the same place counts as
189distribution of the source code, even though third parties are not
190compelled to copy the source along with the object code.
191
192  4. You may not copy, modify, sublicense, or distribute the Program
193except as expressly provided under this License.  Any attempt
194otherwise to copy, modify, sublicense or distribute the Program is
195void, and will automatically terminate your rights under this License.
196However, parties who have received copies, or rights, from you under
197this License will not have their licenses terminated so long as such
198parties remain in full compliance.
199
200  5. You are not required to accept this License, since you have not
201signed it.  However, nothing else grants you permission to modify or
202distribute the Program or its derivative works.  These actions are
203prohibited by law if you do not accept this License.  Therefore, by
204modifying or distributing the Program (or any work based on the
205Program), you indicate your acceptance of this License to do so, and
206all its terms and conditions for copying, distributing or modifying
207the Program or works based on it.
208
209  6. Each time you redistribute the Program (or any work based on the
210Program), the recipient automatically receives a license from the
211original licensor to copy, distribute or modify the Program subject to
212these terms and conditions.  You may not impose any further
213restrictions on the recipients' exercise of the rights granted herein.
214You are not responsible for enforcing compliance by third parties to
215this License.
216
217  7. If, as a consequence of a court judgment or allegation of patent
218infringement or for any other reason (not limited to patent issues),
219conditions are imposed on you (whether by court order, agreement or
220otherwise) that contradict the conditions of this License, they do not
221excuse you from the conditions of this License.  If you cannot
222distribute so as to satisfy simultaneously your obligations under this
223License and any other pertinent obligations, then as a consequence you
224may not distribute the Program at all.  For example, if a patent
225license would not permit royalty-free redistribution of the Program by
226all those who receive copies directly or indirectly through you, then
227the only way you could satisfy both it and this License would be to
228refrain entirely from distribution of the Program.
229
230If any portion of this section is held invalid or unenforceable under
231any particular circumstance, the balance of the section is intended to
232apply and the section as a whole is intended to apply in other
233circumstances.
234
235It is not the purpose of this section to induce you to infringe any
236patents or other property right claims or to contest validity of any
237such claims; this section has the sole purpose of protecting the
238integrity of the free software distribution system, which is
239implemented by public license practices.  Many people have made
240generous contributions to the wide range of software distributed
241through that system in reliance on consistent application of that
242system; it is up to the author/donor to decide if he or she is willing
243to distribute software through any other system and a licensee cannot
244impose that choice.
245
246This section is intended to make thoroughly clear what is believed to
247be a consequence of the rest of this License.
248
249  8. If the distribution and/or use of the Program is restricted in
250certain countries either by patents or by copyrighted interfaces, the
251original copyright holder who places the Program under this License
252may add an explicit geographical distribution limitation excluding
253those countries, so that distribution is permitted only in or among
254countries not thus excluded.  In such case, this License incorporates
255the limitation as if written in the body of this License.
256
257  9. The Free Software Foundation may publish revised and/or new versions
258of the General Public License from time to time.  Such new versions will
259be similar in spirit to the present version, but may differ in detail to
260address new problems or concerns.
261
262Each version is given a distinguishing version number.  If the Program
263specifies a version number of this License which applies to it and "any
264later version", you have the option of following the terms and conditions
265either of that version or of any later version published by the Free
266Software Foundation.  If the Program does not specify a version number of
267this License, you may choose any version ever published by the Free Software
268Foundation.
269
270  10. If you wish to incorporate parts of the Program into other free
271programs whose distribution conditions are different, write to the author
272to ask for permission.  For software which is copyrighted by the Free
273Software Foundation, write to the Free Software Foundation; we sometimes
274make exceptions for this.  Our decision will be guided by the two goals
275of preserving the free status of all derivatives of our free software and
276of promoting the sharing and reuse of software generally.
277
278                NO WARRANTY
279
280  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
281FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
282OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
283PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
284OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
285MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
286TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
287PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
288REPAIR OR CORRECTION.
289
290  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
291WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
292REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
293INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
294OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
295TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
296YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
297PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
298POSSIBILITY OF SUCH DAMAGES.
299
300             END OF TERMS AND CONDITIONS
301
302        How to Apply These Terms to Your New Programs
303
304  If you develop a new program, and you want it to be of the greatest
305possible use to the public, the best way to achieve this is to make it
306free software which everyone can redistribute and change under these terms.
307
308  To do so, attach the following notices to the program.  It is safest
309to attach them to the start of each source file to most effectively
310convey the exclusion of warranty; and each file should have at least
311the "copyright" line and a pointer to where the full notice is found.
312
313    <one line to give the program's name and a brief idea of what it does.>
314    Copyright (C) 19yy  <name of author>
315
316    This program is free software; you can redistribute it and/or modify
317    it under the terms of the GNU General Public License as published by
318    the Free Software Foundation; either version 2 of the License, or
319    (at your option) any later version.
320
321    This program is distributed in the hope that it will be useful,
322    but WITHOUT ANY WARRANTY; without even the implied warranty of
323    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
324    GNU General Public License for more details.
325
326    You should have received a copy of the GNU General Public License
327    along with this program; if not, write to the Free Software
328    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
329
330Also add information on how to contact you by electronic and paper mail.
331
332If the program is interactive, make it output a short notice like this
333when it starts in an interactive mode:
334
335    Gnomovision version 69, Copyright (C) 19yy name of author
336    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
337    This is free software, and you are welcome to redistribute it
338    under certain conditions; type `show c' for details.
339
340The hypothetical commands `show w' and `show c' should show the appropriate
341parts of the General Public License.  Of course, the commands you use may
342be called something other than `show w' and `show c'; they could even be
343mouse-clicks or menu items--whatever suits your program.
344
345You should also get your employer (if you work as a programmer) or your
346school, if any, to sign a "copyright disclaimer" for the program, if
347necessary.  Here is a sample; alter the names:
348
349  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
350  `Gnomovision' (which makes passes at compilers) written by James Hacker.
351
352  <signature of Ty Coon>, 1 April 1989
353  Ty Coon, President of Vice
354
355This General Public License does not permit incorporating your program into
356proprietary programs.  If your program is a subroutine library, you may
357consider it more useful to permit linking proprietary applications with the
358library.  If this is what you want to do, use the GNU Library General
359Public License instead of this License.
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