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1   Copyright (C) 1997, 2002, 2005 Free Software Foundation, Inc.
2 * Copyright (C) 2005 Jens Axboe <axboe@suse.de>
3 * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
4 * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk>
5 * Copyright (C) 2006. Bob Jenkins (bob_jenkins@burtleburtle.net)
6 * Copyright (C) 2009 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
7 * Copyright IBM Corp. 2008
8# Copyright (c) 2005 SUSE LINUX Products GmbH, Nuernberg, Germany.
9# Copyright (c) 2005 Silicon Graphics, Inc.
10		    GNU GENERAL PUBLIC LICENSE
11		       Version 2, June 1991
12
13 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
14                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
15 Everyone is permitted to copy and distribute verbatim copies
16 of this license document, but changing it is not allowed.
17
18			    Preamble
19
20  The licenses for most software are designed to take away your
21freedom to share and change it.  By contrast, the GNU General Public
22License is intended to guarantee your freedom to share and change free
23software--to make sure the software is free for all its users.  This
24General Public License applies to most of the Free Software
25Foundation's software and to any other program whose authors commit to
26using it.  (Some other Free Software Foundation software is covered by
27the GNU Library General Public License instead.)  You can apply it to
28your programs, too.
29
30  When we speak of free software, we are referring to freedom, not
31price.  Our General Public Licenses are designed to make sure that you
32have the freedom to distribute copies of free software (and charge for
33this service if you wish), that you receive source code or can get it
34if you want it, that you can change the software or use pieces of it
35in new free programs; and that you know you can do these things.
36
37  To protect your rights, we need to make restrictions that forbid
38anyone to deny you these rights or to ask you to surrender the rights.
39These restrictions translate to certain responsibilities for you if you
40distribute copies of the software, or if you modify it.
41
42  For example, if you distribute copies of such a program, whether
43gratis or for a fee, you must give the recipients all the rights that
44you have.  You must make sure that they, too, receive or can get the
45source code.  And you must show them these terms so they know their
46rights.
47
48  We protect your rights with two steps: (1) copyright the software, and
49(2) offer you this license which gives you legal permission to copy,
50distribute and/or modify the software.
51
52  Also, for each author's protection and ours, we want to make certain
53that everyone understands that there is no warranty for this free
54software.  If the software is modified by someone else and passed on, we
55want its recipients to know that what they have is not the original, so
56that any problems introduced by others will not reflect on the original
57authors' reputations.
58
59  Finally, any free program is threatened constantly by software
60patents.  We wish to avoid the danger that redistributors of a free
61program will individually obtain patent licenses, in effect making the
62program proprietary.  To prevent this, we have made it clear that any
63patent must be licensed for everyone's free use or not licensed at all.
64
65  The precise terms and conditions for copying, distribution and
66modification follow.
67
68		    GNU GENERAL PUBLIC LICENSE
69   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
70
71  0. This License applies to any program or other work which contains
72a notice placed by the copyright holder saying it may be distributed
73under the terms of this General Public License.  The "Program", below,
74refers to any such program or work, and a "work based on the Program"
75means either the Program or any derivative work under copyright law:
76that is to say, a work containing the Program or a portion of it,
77either verbatim or with modifications and/or translated into another
78language.  (Hereinafter, translation is included without limitation in
79the term "modification".)  Each licensee is addressed as "you".
80
81Activities other than copying, distribution and modification are not
82covered by this License; they are outside its scope.  The act of
83running the Program is not restricted, and the output from the Program
84is covered only if its contents constitute a work based on the
85Program (independent of having been made by running the Program).
86Whether that is true depends on what the Program does.
87
88  1. You may copy and distribute verbatim copies of the Program's
89source code as you receive it, in any medium, provided that you
90conspicuously and appropriately publish on each copy an appropriate
91copyright notice and disclaimer of warranty; keep intact all the
92notices that refer to this License and to the absence of any warranty;
93and give any other recipients of the Program a copy of this License
94along with the Program.
95
96You may charge a fee for the physical act of transferring a copy, and
97you may at your option offer warranty protection in exchange for a fee.
98
99  2. You may modify your copy or copies of the Program or any portion
100of it, thus forming a work based on the Program, and copy and
101distribute such modifications or work under the terms of Section 1
102above, provided that you also meet all of these conditions:
103
104    a) You must cause the modified files to carry prominent notices
105    stating that you changed the files and the date of any change.
106
107    b) You must cause any work that you distribute or publish, that in
108    whole or in part contains or is derived from the Program or any
109    part thereof, to be licensed as a whole at no charge to all third
110    parties under the terms of this License.
111
112    c) If the modified program normally reads commands interactively
113    when run, you must cause it, when started running for such
114    interactive use in the most ordinary way, to print or display an
115    announcement including an appropriate copyright notice and a
116    notice that there is no warranty (or else, saying that you provide
117    a warranty) and that users may redistribute the program under
118    these conditions, and telling the user how to view a copy of this
119    License.  (Exception: if the Program itself is interactive but
120    does not normally print such an announcement, your work based on
121    the Program is not required to print an announcement.)
122
123These requirements apply to the modified work as a whole.  If
124identifiable sections of that work are not derived from the Program,
125and can be reasonably considered independent and separate works in
126themselves, then this License, and its terms, do not apply to those
127sections when you distribute them as separate works.  But when you
128distribute the same sections as part of a whole which is a work based
129on the Program, the distribution of the whole must be on the terms of
130this License, whose permissions for other licensees extend to the
131entire whole, and thus to each and every part regardless of who wrote it.
132
133Thus, it is not the intent of this section to claim rights or contest
134your rights to work written entirely by you; rather, the intent is to
135exercise the right to control the distribution of derivative or
136collective works based on the Program.
137
138In addition, mere aggregation of another work not based on the Program
139with the Program (or with a work based on the Program) on a volume of
140a storage or distribution medium does not bring the other work under
141the scope of this License.
142
143  3. You may copy and distribute the Program (or a work based on it,
144under Section 2) in object code or executable form under the terms of
145Sections 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
164The source code for a work means the preferred form of the work for
165making modifications to it.  For an executable work, complete source
166code means all the source code for all modules it contains, plus any
167associated interface definition files, plus the scripts used to
168control compilation and installation of the executable.  However, as a
169special exception, the source code distributed need not include
170anything that is normally distributed (in either source or binary
171form) with the major components (compiler, kernel, and so on) of the
172operating system on which the executable runs, unless that component
173itself accompanies the executable.
174
175If distribution of executable or object code is made by offering
176access to copy from a designated place, then offering equivalent
177access to copy the source code from the same place counts as
178distribution of the source code, even though third parties are not
179compelled to copy the source along with the object code.
180
181  4. You may not copy, modify, sublicense, or distribute the Program
182except as expressly provided under this License.  Any attempt
183otherwise to copy, modify, sublicense or distribute the Program is
184void, and will automatically terminate your rights under this License.
185However, parties who have received copies, or rights, from you under
186this License will not have their licenses terminated so long as such
187parties remain in full compliance.
188
189  5. You are not required to accept this License, since you have not
190signed it.  However, nothing else grants you permission to modify or
191distribute the Program or its derivative works.  These actions are
192prohibited by law if you do not accept this License.  Therefore, by
193modifying or distributing the Program (or any work based on the
194Program), you indicate your acceptance of this License to do so, and
195all its terms and conditions for copying, distributing or modifying
196the Program or works based on it.
197
198  6. Each time you redistribute the Program (or any work based on the
199Program), the recipient automatically receives a license from the
200original licensor to copy, distribute or modify the Program subject to
201these terms and conditions.  You may not impose any further
202restrictions on the recipients' exercise of the rights granted herein.
203You are not responsible for enforcing compliance by third parties to
204this License.
205
206  7. If, as a consequence of a court judgment or allegation of patent
207infringement or for any other reason (not limited to patent issues),
208conditions are imposed on you (whether by court order, agreement or
209otherwise) that contradict the conditions of this License, they do not
210excuse you from the conditions of this License.  If you cannot
211distribute so as to satisfy simultaneously your obligations under this
212License and any other pertinent obligations, then as a consequence you
213may not distribute the Program at all.  For example, if a patent
214license would not permit royalty-free redistribution of the Program by
215all those who receive copies directly or indirectly through you, then
216the only way you could satisfy both it and this License would be to
217refrain entirely from distribution of the Program.
218
219If any portion of this section is held invalid or unenforceable under
220any particular circumstance, the balance of the section is intended to
221apply and the section as a whole is intended to apply in other
222circumstances.
223
224It is not the purpose of this section to induce you to infringe any
225patents or other property right claims or to contest validity of any
226such claims; this section has the sole purpose of protecting the
227integrity of the free software distribution system, which is
228implemented by public license practices.  Many people have made
229generous contributions to the wide range of software distributed
230through that system in reliance on consistent application of that
231system; it is up to the author/donor to decide if he or she is willing
232to distribute software through any other system and a licensee cannot
233impose that choice.
234
235This section is intended to make thoroughly clear what is believed to
236be a consequence of the rest of this License.
237
238  8. If the distribution and/or use of the Program is restricted in
239certain countries either by patents or by copyrighted interfaces, the
240original copyright holder who places the Program under this License
241may add an explicit geographical distribution limitation excluding
242those countries, so that distribution is permitted only in or among
243countries not thus excluded.  In such case, this License incorporates
244the limitation as if written in the body of this License.
245
246  9. The Free Software Foundation may publish revised and/or new versions
247of the General Public License from time to time.  Such new versions will
248be similar in spirit to the present version, but may differ in detail to
249address new problems or concerns.
250
251Each version is given a distinguishing version number.  If the Program
252specifies a version number of this License which applies to it and "any
253later version", you have the option of following the terms and conditions
254either of that version or of any later version published by the Free
255Software Foundation.  If the Program does not specify a version number of
256this License, you may choose any version ever published by the Free Software
257Foundation.
258
259  10. If you wish to incorporate parts of the Program into other free
260programs whose distribution conditions are different, write to the author
261to ask for permission.  For software which is copyrighted by the Free
262Software Foundation, write to the Free Software Foundation; we sometimes
263make exceptions for this.  Our decision will be guided by the two goals
264of preserving the free status of all derivatives of our free software and
265of promoting the sharing and reuse of software generally.
266
267			    NO WARRANTY
268
269  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
270FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
271OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
272PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
273OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
274MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
275TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
276PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
277REPAIR OR CORRECTION.
278
279  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
280WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
281REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
282INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
283OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
284TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
285YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
286PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
287POSSIBILITY OF SUCH DAMAGES.
288
289		     END OF TERMS AND CONDITIONS
290
291	    How to Apply These Terms to Your New Programs
292
293  If you develop a new program, and you want it to be of the greatest
294possible use to the public, the best way to achieve this is to make it
295free software which everyone can redistribute and change under these terms.
296
297  To do so, attach the following notices to the program.  It is safest
298to attach them to the start of each source file to most effectively
299convey the exclusion of warranty; and each file should have at least
300the "copyright" line and a pointer to where the full notice is found.
301
302    <one line to give the program's name and a brief idea of what it does.>
303    Copyright (C) <year>  <name of author>
304
305    This program is free software; you can redistribute it and/or modify
306    it under the terms of the GNU General Public License as published by
307    the Free Software Foundation; either version 2 of the License, or
308    (at your option) any later version.
309
310    This program is distributed in the hope that it will be useful,
311    but WITHOUT ANY WARRANTY; without even the implied warranty of
312    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
313    GNU General Public License for more details.
314
315    You should have received a copy of the GNU General Public License
316    along with this program; if not, write to the Free Software
317    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
318
319
320Also add information on how to contact you by electronic and paper mail.
321
322If the program is interactive, make it output a short notice like this
323when it starts in an interactive mode:
324
325    Gnomovision version 69, Copyright (C) year name of author
326    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
327    This is free software, and you are welcome to redistribute it
328    under certain conditions; type `show c' for details.
329
330The hypothetical commands `show w' and `show c' should show the appropriate
331parts of the General Public License.  Of course, the commands you use may
332be called something other than `show w' and `show c'; they could even be
333mouse-clicks or menu items--whatever suits your program.
334
335You should also get your employer (if you work as a programmer) or your
336school, if any, to sign a "copyright disclaimer" for the program, if
337necessary.  Here is a sample; alter the names:
338
339  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
340  `Gnomovision' (which makes passes at compilers) written by James Hacker.
341
342  <signature of Ty Coon>, 1 April 1989
343  Ty Coon, President of Vice
344
345This General Public License does not permit incorporating your program into
346proprietary programs.  If your program is a subroutine library, you may
347consider it more useful to permit linking proprietary applications with the
348library.  If this is what you want to do, use the GNU Library General
349Public License instead of this License.
350