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Revision 1.11 by root, Wed Jun 18 20:40:51 2014 UTC

1This program is released under the GPLv3 with the additional exemption that
2compiling, linking, and/or using OpenSSL is allowed. You may provide
3binary packages linked to the OpenSSL libraries, provided that all other
4requirements of the GPL are met.
5
6Some files in this package are licensed with different, but hopefully
7compatible, licenses.
8
9-----------------------------------------------------------------------------
10
11 GNU GENERAL PUBLIC LICENSE 1 GNU GENERAL PUBLIC LICENSE
12 Version 3, 29 June 2007 2 Version 2, June 1991
13 3
14 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> 4 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
5 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15 Everyone is permitted to copy and distribute verbatim copies 6 Everyone is permitted to copy and distribute verbatim copies
16 of this license document, but changing it is not allowed. 7 of this license document, but changing it is not allowed.
17 8
18 Preamble 9 Preamble
19 10
20 The GNU General Public License is a free, copyleft license for 11 The licenses for most software are designed to take away your
21software and other kinds of works. 12freedom to share and change it. By contrast, the GNU General Public
22 13License is intended to guarantee your freedom to share and change free
23 The licenses for most software and other practical works are designed 14software--to make sure the software is free for all its users. This
24to take away your freedom to share and change the works. By contrast, 15General Public License applies to most of the Free Software
25the GNU General Public License is intended to guarantee your freedom to 16Foundation's software and to any other program whose authors commit to
26share and change all versions of a program--to make sure it remains free 17using it. (Some other Free Software Foundation software is covered by
27software for all its users. We, the Free Software Foundation, use the 18the GNU Library General Public License instead.) You can apply it to
28GNU General Public License for most of our software; it applies also to
29any other work released this way by its authors. You can apply it to
30your programs, too. 19your programs, too.
31 20
32 When we speak of free software, we are referring to freedom, not 21 When we speak of free software, we are referring to freedom, not
33price. Our General Public Licenses are designed to make sure that you 22price. Our General Public Licenses are designed to make sure that you
34have the freedom to distribute copies of free software (and charge for 23have the freedom to distribute copies of free software (and charge for
35them if you wish), that you receive source code or can get it if you 24this service if you wish), that you receive source code or can get it
36want it, that you can change the software or use pieces of it in new 25if you want it, that you can change the software or use pieces of it
37free programs, and that you know you can do these things. 26in new free programs; and that you know you can do these things.
38 27
39 To protect your rights, we need to prevent others from denying you 28 To protect your rights, we need to make restrictions that forbid
40these rights or asking you to surrender the rights. Therefore, you have 29anyone to deny you these rights or to ask you to surrender the rights.
41certain responsibilities if you distribute copies of the software, or if 30These restrictions translate to certain responsibilities for you if you
42you modify it: responsibilities to respect the freedom of others. 31distribute copies of the software, or if you modify it.
43 32
44 For example, if you distribute copies of such a program, whether 33 For example, if you distribute copies of such a program, whether
45gratis or for a fee, you must pass on to the recipients the same 34gratis or for a fee, you must give the recipients all the rights that
46freedoms that you received. You must make sure that they, too, receive 35you have. You must make sure that they, too, receive or can get the
47or can get the source code. And you must show them these terms so they 36source code. And you must show them these terms so they know their
48know their rights. 37rights.
49 38
50 Developers that use the GNU GPL protect your rights with two steps: 39 We protect your rights with two steps: (1) copyright the software, and
51(1) assert copyright on the software, and (2) offer you this License 40(2) offer you this license which gives you legal permission to copy,
52giving you legal permission to copy, distribute and/or modify it. 41distribute and/or modify the software.
53 42
54 For the developers' and authors' protection, the GPL clearly explains 43 Also, for each author's protection and ours, we want to make certain
55that there is no warranty for this free software. For both users' and 44that everyone understands that there is no warranty for this free
56authors' sake, the GPL requires that modified versions be marked as 45software. If the software is modified by someone else and passed on, we
57changed, so that their problems will not be attributed erroneously to 46want its recipients to know that what they have is not the original, so
58authors of previous versions. 47that any problems introduced by others will not reflect on the original
48authors' reputations.
59 49
60 Some devices are designed to deny users access to install or run
61modified versions of the software inside them, although the manufacturer
62can do so. This is fundamentally incompatible with the aim of
63protecting users' freedom to change the software. The systematic
64pattern of such abuse occurs in the area of products for individuals to
65use, which is precisely where it is most unacceptable. Therefore, we
66have designed this version of the GPL to prohibit the practice for those
67products. If such problems arise substantially in other domains, we
68stand ready to extend this provision to those domains in future versions
69of the GPL, as needed to protect the freedom of users.
70
71 Finally, every program is threatened constantly by software patents. 50 Finally, any free program is threatened constantly by software
72States should not allow patents to restrict development and use of 51patents. We wish to avoid the danger that redistributors of a free
73software on general-purpose computers, but in those that do, we wish to 52program will individually obtain patent licenses, in effect making the
74avoid the special danger that patents applied to a free program could 53program proprietary. To prevent this, we have made it clear that any
75make it effectively proprietary. To prevent this, the GPL assures that 54patent must be licensed for everyone's free use or not licensed at all.
76patents cannot be used to render the program non-free.
77 55
78 The precise terms and conditions for copying, distribution and 56 The precise terms and conditions for copying, distribution and
79modification follow. 57modification follow.
58
59 GNU GENERAL PUBLIC LICENSE
60 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
80 61
81 TERMS AND CONDITIONS 62 0. This License applies to any program or other work which contains
63a notice placed by the copyright holder saying it may be distributed
64under the terms of this General Public License. The "Program", below,
65refers to any such program or work, and a "work based on the Program"
66means either the Program or any derivative work under copyright law:
67that is to say, a work containing the Program or a portion of it,
68either verbatim or with modifications and/or translated into another
69language. (Hereinafter, translation is included without limitation in
70the term "modification".) Each licensee is addressed as "you".
82 71
83 0. Definitions. 72Activities other than copying, distribution and modification are not
73covered by this License; they are outside its scope. The act of
74running the Program is not restricted, and the output from the Program
75is covered only if its contents constitute a work based on the
76Program (independent of having been made by running the Program).
77Whether that is true depends on what the Program does.
84 78
85 "This License" refers to version 3 of the GNU General Public License. 79 1. You may copy and distribute verbatim copies of the Program's
86 80source code as you receive it, in any medium, provided that you
87 "Copyright" also means copyright-like laws that apply to other kinds of 81conspicuously and appropriately publish on each copy an appropriate
88works, such as semiconductor masks. 82copyright notice and disclaimer of warranty; keep intact all the
89 83notices that refer to this License and to the absence of any warranty;
90 "The Program" refers to any copyrightable work licensed under this 84and give any other recipients of the Program a copy of this License
91License. Each licensee is addressed as "you". "Licensees" and
92"recipients" may be individuals or organizations.
93
94 To "modify" a work means to copy from or adapt all or part of the work
95in a fashion requiring copyright permission, other than the making of an
96exact copy. The resulting work is called a "modified version" of the
97earlier work or a work "based on" the earlier work.
98
99 A "covered work" means either the unmodified Program or a work based
100on the Program. 85along with the Program.
101 86
102 To "propagate" a work means to do anything with it that, without 87You may charge a fee for the physical act of transferring a copy, and
103permission, would make you directly or secondarily liable for 88you may at your option offer warranty protection in exchange for a fee.
104infringement under applicable copyright law, except executing it on a
105computer or modifying a private copy. Propagation includes copying,
106distribution (with or without modification), making available to the
107public, and in some countries other activities as well.
108 89
109 To "convey" a work means any kind of propagation that enables other 90 2. You may modify your copy or copies of the Program or any portion
110parties to make or receive copies. Mere interaction with a user through 91of it, thus forming a work based on the Program, and copy and
111a computer network, with no transfer of a copy, is not conveying. 92distribute such modifications or work under the terms of Section 1
93above, provided that you also meet all of these conditions:
112 94
113 An interactive user interface displays "Appropriate Legal Notices" 95 a) You must cause the modified files to carry prominent notices
114to the extent that it includes a convenient and prominently visible 96 stating that you changed the files and the date of any change.
115feature that (1) displays an appropriate copyright notice, and (2)
116tells the user that there is no warranty for the work (except to the
117extent that warranties are provided), that licensees may convey the
118work under this License, and how to view a copy of this License. If
119the interface presents a list of user commands or options, such as a
120menu, a prominent item in the list meets this criterion.
121 97
122 1. Source Code. 98 b) You must cause any work that you distribute or publish, that in
99 whole or in part contains or is derived from the Program or any
100 part thereof, to be licensed as a whole at no charge to all third
101 parties under the terms of this License.
123 102
103 c) If the modified program normally reads commands interactively
104 when run, you must cause it, when started running for such
105 interactive use in the most ordinary way, to print or display an
106 announcement including an appropriate copyright notice and a
107 notice that there is no warranty (or else, saying that you provide
108 a warranty) and that users may redistribute the program under
109 these conditions, and telling the user how to view a copy of this
110 License. (Exception: if the Program itself is interactive but
111 does not normally print such an announcement, your work based on
112 the Program is not required to print an announcement.)
113
114These requirements apply to the modified work as a whole. If
115identifiable sections of that work are not derived from the Program,
116and can be reasonably considered independent and separate works in
117themselves, then this License, and its terms, do not apply to those
118sections when you distribute them as separate works. But when you
119distribute the same sections as part of a whole which is a work based
120on the Program, the distribution of the whole must be on the terms of
121this License, whose permissions for other licensees extend to the
122entire whole, and thus to each and every part regardless of who wrote it.
123
124Thus, it is not the intent of this section to claim rights or contest
125your rights to work written entirely by you; rather, the intent is to
126exercise the right to control the distribution of derivative or
127collective works based on the Program.
128
129In addition, mere aggregation of another work not based on the Program
130with the Program (or with a work based on the Program) on a volume of
131a storage or distribution medium does not bring the other work under
132the scope of this License.
133
134 3. You may copy and distribute the Program (or a work based on it,
135under Section 2) in object code or executable form under the terms of
136Sections 1 and 2 above provided that you also do one of the following:
137
138 a) Accompany it with the complete corresponding machine-readable
139 source code, which must be distributed under the terms of Sections
140 1 and 2 above on a medium customarily used for software interchange; or,
141
142 b) Accompany it with a written offer, valid for at least three
143 years, to give any third party, for a charge no more than your
144 cost of physically performing source distribution, a complete
145 machine-readable copy of the corresponding source code, to be
146 distributed under the terms of Sections 1 and 2 above on a medium
147 customarily used for software interchange; or,
148
149 c) Accompany it with the information you received as to the offer
150 to distribute corresponding source code. (This alternative is
151 allowed only for noncommercial distribution and only if you
152 received the program in object code or executable form with such
153 an offer, in accord with Subsection b above.)
154
124 The "source code" for a work means the preferred form of the work 155The source code for a work means the preferred form of the work for
125for making modifications to it. "Object code" means any non-source 156making modifications to it. For an executable work, complete source
126form of a work. 157code means all the source code for all modules it contains, plus any
158associated interface definition files, plus the scripts used to
159control compilation and installation of the executable. However, as a
160special exception, the source code distributed need not include
161anything that is normally distributed (in either source or binary
162form) with the major components (compiler, kernel, and so on) of the
163operating system on which the executable runs, unless that component
164itself accompanies the executable.
127 165
128 A "Standard Interface" means an interface that either is an official 166If distribution of executable or object code is made by offering
129standard defined by a recognized standards body, or, in the case of 167access to copy from a designated place, then offering equivalent
130interfaces specified for a particular programming language, one that 168access to copy the source code from the same place counts as
131is widely used among developers working in that language. 169distribution of the source code, even though third parties are not
132 170compelled to copy the source along with the object code.
133 The "System Libraries" of an executable work include anything, other 171
134than the work as a whole, that (a) is included in the normal form of 172 4. You may not copy, modify, sublicense, or distribute the Program
135packaging a Major Component, but which is not part of that Major 173except as expressly provided under this License. Any attempt
136Component, and (b) serves only to enable use of the work with that 174otherwise to copy, modify, sublicense or distribute the Program is
137Major Component, or to implement a Standard Interface for which an
138implementation is available to the public in source code form. A
139"Major Component", in this context, means a major essential component
140(kernel, window system, and so on) of the specific operating system
141(if any) on which the executable work runs, or a compiler used to
142produce the work, or an object code interpreter used to run it.
143
144 The "Corresponding Source" for a work in object code form means all
145the source code needed to generate, install, and (for an executable
146work) run the object code and to modify the work, including scripts to
147control those activities. However, it does not include the work's
148System Libraries, or general-purpose tools or generally available free
149programs which are used unmodified in performing those activities but
150which are not part of the work. For example, Corresponding Source
151includes interface definition files associated with source files for
152the work, and the source code for shared libraries and dynamically
153linked subprograms that the work is specifically designed to require,
154such as by intimate data communication or control flow between those
155subprograms and other parts of the work.
156
157 The Corresponding Source need not include anything that users
158can regenerate automatically from other parts of the Corresponding
159Source.
160
161 The Corresponding Source for a work in source code form is that
162same work.
163
164 2. Basic Permissions.
165
166 All rights granted under this License are granted for the term of
167copyright on the Program, and are irrevocable provided the stated
168conditions are met. This License explicitly affirms your unlimited
169permission to run the unmodified Program. The output from running a
170covered work is covered by this License only if the output, given its
171content, constitutes a covered work. This License acknowledges your
172rights of fair use or other equivalent, as provided by copyright law.
173
174 You may make, run and propagate covered works that you do not
175convey, without conditions so long as your license otherwise remains
176in force. You may convey covered works to others for the sole purpose
177of having them make modifications exclusively for you, or provide you
178with facilities for running those works, provided that you comply with
179the terms of this License in conveying all material for which you do
180not control copyright. Those thus making or running the covered works
181for you must do so exclusively on your behalf, under your direction
182and control, on terms that prohibit them from making any copies of
183your copyrighted material outside their relationship with you.
184
185 Conveying under any other circumstances is permitted solely under
186the conditions stated below. Sublicensing is not allowed; section 10
187makes it unnecessary.
188
189 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
190
191 No covered work shall be deemed part of an effective technological
192measure under any applicable law fulfilling obligations under article
19311 of the WIPO copyright treaty adopted on 20 December 1996, or
194similar laws prohibiting or restricting circumvention of such
195measures.
196
197 When you convey a covered work, you waive any legal power to forbid
198circumvention of technological measures to the extent such circumvention
199is effected by exercising rights under this License with respect to
200the covered work, and you disclaim any intention to limit operation or
201modification of the work as a means of enforcing, against the work's
202users, your or third parties' legal rights to forbid circumvention of
203technological measures.
204
205 4. Conveying Verbatim Copies.
206
207 You may convey verbatim copies of the Program's source code as you
208receive it, in any medium, provided that you conspicuously and
209appropriately publish on each copy an appropriate copyright notice;
210keep intact all notices stating that this License and any
211non-permissive terms added in accord with section 7 apply to the code;
212keep intact all notices of the absence of any warranty; and give all
213recipients a copy of this License along with the Program.
214
215 You may charge any price or no price for each copy that you convey,
216and you may offer support or warranty protection for a fee.
217
218 5. Conveying Modified Source Versions.
219
220 You may convey a work based on the Program, or the modifications to
221produce it from the Program, in the form of source code under the
222terms of section 4, provided that you also meet all of these conditions:
223
224 a) The work must carry prominent notices stating that you modified
225 it, and giving a relevant date.
226
227 b) The work must carry prominent notices stating that it is
228 released under this License and any conditions added under section
229 7. This requirement modifies the requirement in section 4 to
230 "keep intact all notices".
231
232 c) You must license the entire work, as a whole, under this
233 License to anyone who comes into possession of a copy. This
234 License will therefore apply, along with any applicable section 7
235 additional terms, to the whole of the work, and all its parts,
236 regardless of how they are packaged. This License gives no
237 permission to license the work in any other way, but it does not
238 invalidate such permission if you have separately received it.
239
240 d) If the work has interactive user interfaces, each must display
241 Appropriate Legal Notices; however, if the Program has interactive
242 interfaces that do not display Appropriate Legal Notices, your
243 work need not make them do so.
244
245 A compilation of a covered work with other separate and independent
246works, which are not by their nature extensions of the covered work,
247and which are not combined with it such as to form a larger program,
248in or on a volume of a storage or distribution medium, is called an
249"aggregate" if the compilation and its resulting copyright are not
250used to limit the access or legal rights of the compilation's users
251beyond what the individual works permit. Inclusion of a covered work
252in an aggregate does not cause this License to apply to the other
253parts of the aggregate.
254
255 6. Conveying Non-Source Forms.
256
257 You may convey a covered work in object code form under the terms
258of sections 4 and 5, provided that you also convey the
259machine-readable Corresponding Source under the terms of this License,
260in one of these ways:
261
262 a) Convey the object code in, or embodied in, a physical product
263 (including a physical distribution medium), accompanied by the
264 Corresponding Source fixed on a durable physical medium
265 customarily used for software interchange.
266
267 b) Convey the object code in, or embodied in, a physical product
268 (including a physical distribution medium), accompanied by a
269 written offer, valid for at least three years and valid for as
270 long as you offer spare parts or customer support for that product
271 model, to give anyone who possesses the object code either (1) a
272 copy of the Corresponding Source for all the software in the
273 product that is covered by this License, on a durable physical
274 medium customarily used for software interchange, for a price no
275 more than your reasonable cost of physically performing this
276 conveying of source, or (2) access to copy the
277 Corresponding Source from a network server at no charge.
278
279 c) Convey individual copies of the object code with a copy of the
280 written offer to provide the Corresponding Source. This
281 alternative is allowed only occasionally and noncommercially, and
282 only if you received the object code with such an offer, in accord
283 with subsection 6b.
284
285 d) Convey the object code by offering access from a designated
286 place (gratis or for a charge), and offer equivalent access to the
287 Corresponding Source in the same way through the same place at no
288 further charge. You need not require recipients to copy the
289 Corresponding Source along with the object code. If the place to
290 copy the object code is a network server, the Corresponding Source
291 may be on a different server (operated by you or a third party)
292 that supports equivalent copying facilities, provided you maintain
293 clear directions next to the object code saying where to find the
294 Corresponding Source. Regardless of what server hosts the
295 Corresponding Source, you remain obligated to ensure that it is
296 available for as long as needed to satisfy these requirements.
297
298 e) Convey the object code using peer-to-peer transmission, provided
299 you inform other peers where the object code and Corresponding
300 Source of the work are being offered to the general public at no
301 charge under subsection 6d.
302
303 A separable portion of the object code, whose source code is excluded
304from the Corresponding Source as a System Library, need not be
305included in conveying the object code work.
306
307 A "User Product" is either (1) a "consumer product", which means any
308tangible personal property which is normally used for personal, family,
309or household purposes, or (2) anything designed or sold for incorporation
310into a dwelling. In determining whether a product is a consumer product,
311doubtful cases shall be resolved in favor of coverage. For a particular
312product received by a particular user, "normally used" refers to a
313typical or common use of that class of product, regardless of the status
314of the particular user or of the way in which the particular user
315actually uses, or expects or is expected to use, the product. A product
316is a consumer product regardless of whether the product has substantial
317commercial, industrial or non-consumer uses, unless such uses represent
318the only significant mode of use of the product.
319
320 "Installation Information" for a User Product means any methods,
321procedures, authorization keys, or other information required to install
322and execute modified versions of a covered work in that User Product from
323a modified version of its Corresponding Source. The information must
324suffice to ensure that the continued functioning of the modified object
325code is in no case prevented or interfered with solely because
326modification has been made.
327
328 If you convey an object code work under this section in, or with, or
329specifically for use in, a User Product, and the conveying occurs as
330part of a transaction in which the right of possession and use of the
331User Product is transferred to the recipient in perpetuity or for a
332fixed term (regardless of how the transaction is characterized), the
333Corresponding Source conveyed under this section must be accompanied
334by the Installation Information. But this requirement does not apply
335if neither you nor any third party retains the ability to install
336modified object code on the User Product (for example, the work has
337been installed in ROM).
338
339 The requirement to provide Installation Information does not include a
340requirement to continue to provide support service, warranty, or updates
341for a work that has been modified or installed by the recipient, or for
342the User Product in which it has been modified or installed. Access to a
343network may be denied when the modification itself materially and
344adversely affects the operation of the network or violates the rules and
345protocols for communication across the network.
346
347 Corresponding Source conveyed, and Installation Information provided,
348in accord with this section must be in a format that is publicly
349documented (and with an implementation available to the public in
350source code form), and must require no special password or key for
351unpacking, reading or copying.
352
353 7. Additional Terms.
354
355 "Additional permissions" are terms that supplement the terms of this
356License by making exceptions from one or more of its conditions.
357Additional permissions that are applicable to the entire Program shall
358be treated as though they were included in this License, to the extent
359that they are valid under applicable law. If additional permissions
360apply only to part of the Program, that part may be used separately
361under those permissions, but the entire Program remains governed by
362this License without regard to the additional permissions.
363
364 When you convey a copy of a covered work, you may at your option
365remove any additional permissions from that copy, or from any part of
366it. (Additional permissions may be written to require their own
367removal in certain cases when you modify the work.) You may place
368additional permissions on material, added by you to a covered work,
369for which you have or can give appropriate copyright permission.
370
371 Notwithstanding any other provision of this License, for material you
372add to a covered work, you may (if authorized by the copyright holders of
373that material) supplement the terms of this License with terms:
374
375 a) Disclaiming warranty or limiting liability differently from the
376 terms of sections 15 and 16 of this License; or
377
378 b) Requiring preservation of specified reasonable legal notices or
379 author attributions in that material or in the Appropriate Legal
380 Notices displayed by works containing it; or
381
382 c) Prohibiting misrepresentation of the origin of that material, or
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386 d) Limiting the use for publicity purposes of names of licensors or
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392 f) Requiring indemnification of licensors and authors of that
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397
398 All other non-permissive additional terms are considered "further
399restrictions" within the meaning of section 10. If the Program as you
400received it, or any part of it, contains a notice stating that it is
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403a further restriction but permits relicensing or conveying under this
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407
408 If you add terms to a covered work in accord with this section, you
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411where to find the applicable terms.
412
413 Additional terms, permissive or non-permissive, may be stated in the
414form of a separately written license, or stated as exceptions;
415the above requirements apply either way.
416
417 8. Termination.
418
419 You may not propagate or modify a covered work except as expressly
420provided under this License. Any attempt otherwise to propagate or
421modify it is void, and will automatically terminate your rights under 175void, and will automatically terminate your rights under this License.
422this License (including any patent licenses granted under the third
423paragraph of section 11).
424
425 However, if you cease all violation of this License, then your
426license from a particular copyright holder is reinstated (a)
427provisionally, unless and until the copyright holder explicitly and
428finally terminates your license, and (b) permanently, if the copyright
429holder fails to notify you of the violation by some reasonable means
430prior to 60 days after the cessation.
431
432 Moreover, your license from a particular copyright holder is
433reinstated permanently if the copyright holder notifies you of the
434violation by some reasonable means, this is the first time you have
435received notice of violation of this License (for any work) from that
436copyright holder, and you cure the violation prior to 30 days after
437your receipt of the notice.
438
439 Termination of your rights under this section does not terminate the
440licenses of parties who have received copies or rights from you under 176However, parties who have received copies, or rights, from you under
441this License. If your rights have been terminated and not permanently 177this License will not have their licenses terminated so long as such
442reinstated, you do not qualify to receive new licenses for the same 178parties remain in full compliance.
443material under section 10.
444 179
445 9. Acceptance Not Required for Having Copies.
446
447 You are not required to accept this License in order to receive or 180 5. You are not required to accept this License, since you have not
448run a copy of the Program. Ancillary propagation of a covered work 181signed it. However, nothing else grants you permission to modify or
449occurring solely as a consequence of using peer-to-peer transmission 182distribute the Program or its derivative works. These actions are
450to receive a copy likewise does not require acceptance. However, 183prohibited by law if you do not accept this License. Therefore, by
451nothing other than this License grants you permission to propagate or 184modifying or distributing the Program (or any work based on the
452modify any covered work. These actions infringe copyright if you do
453not accept this License. Therefore, by modifying or propagating a
454covered work, you indicate your acceptance of this License to do so. 185Program), you indicate your acceptance of this License to do so, and
186all its terms and conditions for copying, distributing or modifying
187the Program or works based on it.
455 188
456 10. Automatic Licensing of Downstream Recipients. 189 6. Each time you redistribute the Program (or any work based on the
457 190Program), the recipient automatically receives a license from the
458 Each time you convey a covered work, the recipient automatically 191original licensor to copy, distribute or modify the Program subject to
459receives a license from the original licensors, to run, modify and 192these terms and conditions. You may not impose any further
460propagate that work, subject to this License. You are not responsible 193restrictions on the recipients' exercise of the rights granted herein.
461for enforcing compliance by third parties with this License. 194You are not responsible for enforcing compliance by third parties to
462
463 An "entity transaction" is a transaction transferring control of an
464organization, or substantially all assets of one, or subdividing an
465organization, or merging organizations. If propagation of a covered
466work results from an entity transaction, each party to that
467transaction who receives a copy of the work also receives whatever
468licenses to the work the party's predecessor in interest had or could
469give under the previous paragraph, plus a right to possession of the
470Corresponding Source of the work from the predecessor in interest, if
471the predecessor has it or can get it with reasonable efforts.
472
473 You may not impose any further restrictions on the exercise of the
474rights granted or affirmed under this License. For example, you may
475not impose a license fee, royalty, or other charge for exercise of
476rights granted under this License, and you may not initiate litigation
477(including a cross-claim or counterclaim in a lawsuit) alleging that
478any patent claim is infringed by making, using, selling, offering for
479sale, or importing the Program or any portion of it.
480
481 11. Patents.
482
483 A "contributor" is a copyright holder who authorizes use under this
484License of the Program or a work on which the Program is based. The
485work thus licensed is called the contributor's "contributor version".
486
487 A contributor's "essential patent claims" are all patent claims
488owned or controlled by the contributor, whether already acquired or
489hereafter acquired, that would be infringed by some manner, permitted
490by this License, of making, using, or selling its contributor version,
491but do not include claims that would be infringed only as a
492consequence of further modification of the contributor version. For
493purposes of this definition, "control" includes the right to grant
494patent sublicenses in a manner consistent with the requirements of
495this License. 195this License.
496 196
497 Each contributor grants you a non-exclusive, worldwide, royalty-free 197 7. If, as a consequence of a court judgment or allegation of patent
498patent license under the contributor's essential patent claims, to 198infringement or for any other reason (not limited to patent issues),
499make, use, sell, offer for sale, import and otherwise run, modify and
500propagate the contents of its contributor version.
501
502 In the following three paragraphs, a "patent license" is any express
503agreement or commitment, however denominated, not to enforce a patent
504(such as an express permission to practice a patent or covenant not to
505sue for patent infringement). To "grant" such a patent license to a
506party means to make such an agreement or commitment not to enforce a
507patent against the party.
508
509 If you convey a covered work, knowingly relying on a patent license,
510and the Corresponding Source of the work is not available for anyone
511to copy, free of charge and under the terms of this License, through a
512publicly available network server or other readily accessible means,
513then you must either (1) cause the Corresponding Source to be so
514available, or (2) arrange to deprive yourself of the benefit of the
515patent license for this particular work, or (3) arrange, in a manner
516consistent with the requirements of this License, to extend the patent
517license to downstream recipients. "Knowingly relying" means you have
518actual knowledge that, but for the patent license, your conveying the
519covered work in a country, or your recipient's use of the covered work
520in a country, would infringe one or more identifiable patents in that
521country that you have reason to believe are valid.
522
523 If, pursuant to or in connection with a single transaction or
524arrangement, you convey, or propagate by procuring conveyance of, a
525covered work, and grant a patent license to some of the parties
526receiving the covered work authorizing them to use, propagate, modify
527or convey a specific copy of the covered work, then the patent license
528you grant is automatically extended to all recipients of the covered
529work and works based on it.
530
531 A patent license is "discriminatory" if it does not include within
532the scope of its coverage, prohibits the exercise of, or is
533conditioned on the non-exercise of one or more of the rights that are
534specifically granted under this License. You may not convey a covered
535work if you are a party to an arrangement with a third party that is
536in the business of distributing software, under which you make payment
537to the third party based on the extent of your activity of conveying
538the work, and under which the third party grants, to any of the
539parties who would receive the covered work from you, a discriminatory
540patent license (a) in connection with copies of the covered work
541conveyed by you (or copies made from those copies), or (b) primarily
542for and in connection with specific products or compilations that
543contain the covered work, unless you entered into that arrangement,
544or that patent license was granted, prior to 28 March 2007.
545
546 Nothing in this License shall be construed as excluding or limiting
547any implied license or other defenses to infringement that may
548otherwise be available to you under applicable patent law.
549
550 12. No Surrender of Others' Freedom.
551
552 If conditions are imposed on you (whether by court order, agreement or 199conditions are imposed on you (whether by court order, agreement or
553otherwise) that contradict the conditions of this License, they do not 200otherwise) that contradict the conditions of this License, they do not
554excuse you from the conditions of this License. If you cannot convey a 201excuse you from the conditions of this License. If you cannot
555covered work so as to satisfy simultaneously your obligations under this 202distribute so as to satisfy simultaneously your obligations under this
556License and any other pertinent obligations, then as a consequence you may 203License and any other pertinent obligations, then as a consequence you
557not convey it at all. For example, if you agree to terms that obligate you 204may not distribute the Program at all. For example, if a patent
558to collect a royalty for further conveying from those to whom you convey 205license would not permit royalty-free redistribution of the Program by
559the Program, the only way you could satisfy both those terms and this 206all those who receive copies directly or indirectly through you, then
560License would be to refrain entirely from conveying the Program. 207the only way you could satisfy both it and this License would be to
208refrain entirely from distribution of the Program.
561 209
562 13. Use with the GNU Affero General Public License. 210If any portion of this section is held invalid or unenforceable under
211any particular circumstance, the balance of the section is intended to
212apply and the section as a whole is intended to apply in other
213circumstances.
563 214
564 Notwithstanding any other provision of this License, you have 215It is not the purpose of this section to induce you to infringe any
565permission to link or combine any covered work with a work licensed 216patents or other property right claims or to contest validity of any
566under version 3 of the GNU Affero General Public License into a single 217such claims; this section has the sole purpose of protecting the
567combined work, and to convey the resulting work. The terms of this 218integrity of the free software distribution system, which is
568License will continue to apply to the part which is the covered work, 219implemented by public license practices. Many people have made
569but the special requirements of the GNU Affero General Public License, 220generous contributions to the wide range of software distributed
570section 13, concerning interaction through a network will apply to the 221through that system in reliance on consistent application of that
571combination as such. 222system; it is up to the author/donor to decide if he or she is willing
223to distribute software through any other system and a licensee cannot
224impose that choice.
572 225
573 14. Revised Versions of this License. 226This section is intended to make thoroughly clear what is believed to
227be a consequence of the rest of this License.
228
229 8. If the distribution and/or use of the Program is restricted in
230certain countries either by patents or by copyrighted interfaces, the
231original copyright holder who places the Program under this License
232may add an explicit geographical distribution limitation excluding
233those countries, so that distribution is permitted only in or among
234countries not thus excluded. In such case, this License incorporates
235the limitation as if written in the body of this License.
574 236
575 The Free Software Foundation may publish revised and/or new versions of 237 9. The Free Software Foundation may publish revised and/or new versions
576the GNU General Public License from time to time. Such new versions will 238of the General Public License from time to time. Such new versions will
577be similar in spirit to the present version, but may differ in detail to 239be similar in spirit to the present version, but may differ in detail to
578address new problems or concerns. 240address new problems or concerns.
579 241
580 Each version is given a distinguishing version number. If the 242Each version is given a distinguishing version number. If the Program
581Program specifies that a certain numbered version of the GNU General 243specifies a version number of this License which applies to it and "any
582Public License "or any later version" applies to it, you have the 244later version", you have the option of following the terms and conditions
583option of following the terms and conditions either of that numbered
584version or of any later version published by the Free Software 245either of that version or of any later version published by the Free
585Foundation. If the Program does not specify a version number of the 246Software Foundation. If the Program does not specify a version number of
586GNU General Public License, you may choose any version ever published 247this License, you may choose any version ever published by the Free Software
587by the Free Software Foundation. 248Foundation.
588 249
589 If the Program specifies that a proxy can decide which future 250 10. If you wish to incorporate parts of the Program into other free
590versions of the GNU General Public License can be used, that proxy's 251programs whose distribution conditions are different, write to the author
591public statement of acceptance of a version permanently authorizes you 252to ask for permission. For software which is copyrighted by the Free
592to choose that version for the Program. 253Software Foundation, write to the Free Software Foundation; we sometimes
254make exceptions for this. Our decision will be guided by the two goals
255of preserving the free status of all derivatives of our free software and
256of promoting the sharing and reuse of software generally.
593 257
594 Later license versions may give you additional or different 258 NO WARRANTY
595permissions. However, no additional obligations are imposed on any
596author or copyright holder as a result of your choosing to follow a
597later version.
598 259
599 15. Disclaimer of Warranty. 260 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
262OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
263PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
264OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
265MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
266TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
267PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
268REPAIR OR CORRECTION.
600 269
601 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
602APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
603HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
604OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
605THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
606PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
607IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
608ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
609
610 16. Limitation of Liability.
611
612 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 270 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
613WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 271WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
614THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 272REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
615GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 273INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
616USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 274OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
617DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 275TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
618PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 276YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
619EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 277PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
620SUCH DAMAGES. 278POSSIBILITY OF SUCH DAMAGES.
621 279
622 17. Interpretation of Sections 15 and 16.
623
624 If the disclaimer of warranty and limitation of liability provided
625above cannot be given local legal effect according to their terms,
626reviewing courts shall apply local law that most closely approximates
627an absolute waiver of all civil liability in connection with the
628Program, unless a warranty or assumption of liability accompanies a
629copy of the Program in return for a fee.
630
631 END OF TERMS AND CONDITIONS 280 END OF TERMS AND CONDITIONS
632 281
633 How to Apply These Terms to Your New Programs 282 How to Apply These Terms to Your New Programs
634 283
635 If you develop a new program, and you want it to be of the greatest 284 If you develop a new program, and you want it to be of the greatest
636possible use to the public, the best way to achieve this is to make it 285possible use to the public, the best way to achieve this is to make it
637free software which everyone can redistribute and change under these terms. 286free software which everyone can redistribute and change under these terms.
638 287
639 To do so, attach the following notices to the program. It is safest 288 To do so, attach the following notices to the program. It is safest
640to attach them to the start of each source file to most effectively 289to attach them to the start of each source file to most effectively
641state the exclusion of warranty; and each file should have at least 290convey the exclusion of warranty; and each file should have at least
642the "copyright" line and a pointer to where the full notice is found. 291the "copyright" line and a pointer to where the full notice is found.
643 292
644 <one line to give the program's name and a brief idea of what it does.> 293 <one line to give the program's name and a brief idea of what it does.>
645 Copyright (C) <year> <name of author> 294 Copyright (C) <year> <name of author>
646 295
647 This program is free software: you can redistribute it and/or modify 296 This program is free software; you can redistribute it and/or modify
648 it under the terms of the GNU General Public License as published by 297 it under the terms of the GNU General Public License as published by
649 the Free Software Foundation, either version 3 of the License, or 298 the Free Software Foundation; either version 2 of the License, or
650 (at your option) any later version. 299 (at your option) any later version.
651 300
652 This program is distributed in the hope that it will be useful, 301 This program is distributed in the hope that it will be useful,
653 but WITHOUT ANY WARRANTY; without even the implied warranty of 302 but WITHOUT ANY WARRANTY; without even the implied warranty of
654 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 303 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
655 GNU General Public License for more details. 304 GNU General Public License for more details.
656 305
657 You should have received a copy of the GNU General Public License 306 You should have received a copy of the GNU General Public License
658 along with this program. If not, see <http://www.gnu.org/licenses/>. 307 along with this program; if not, write to the Free Software
308 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
309
659 310
660Also add information on how to contact you by electronic and paper mail. 311Also add information on how to contact you by electronic and paper mail.
661 312
662 If the program does terminal interaction, make it output a short 313If the program is interactive, make it output a short notice like this
663notice like this when it starts in an interactive mode: 314when it starts in an interactive mode:
664 315
665 <program> Copyright (C) <year> <name of author> 316 Gnomovision version 69, Copyright (C) year name of author
666 This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
667 This is free software, and you are welcome to redistribute it 318 This is free software, and you are welcome to redistribute it
668 under certain conditions; type `show c' for details. 319 under certain conditions; type `show c' for details.
669 320
670The hypothetical commands `show w' and `show c' should show the appropriate 321The hypothetical commands `show w' and `show c' should show the appropriate
671parts of the General Public License. Of course, your program's commands 322parts of the General Public License. Of course, the commands you use may
672might be different; for a GUI interface, you would use an "about box". 323be called something other than `show w' and `show c'; they could even be
324mouse-clicks or menu items--whatever suits your program.
673 325
674 You should also get your employer (if you work as a programmer) or school, 326You should also get your employer (if you work as a programmer) or your
675if any, to sign a "copyright disclaimer" for the program, if necessary. 327school, if any, to sign a "copyright disclaimer" for the program, if
676For more information on this, and how to apply and follow the GNU GPL, see 328necessary. Here is a sample; alter the names:
677<http://www.gnu.org/licenses/>.
678 329
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
679 The GNU General Public License does not permit incorporating your program 336This General Public License does not permit incorporating your program into
680into proprietary programs. If your program is a subroutine library, you 337proprietary programs. If your program is a subroutine library, you may
681may consider it more useful to permit linking proprietary applications with 338consider it more useful to permit linking proprietary applications with the
682the library. If this is what you want to do, use the GNU Lesser General 339library. If this is what you want to do, use the GNU Library General
683Public License instead of this License. But first, please read 340Public License instead of this License.
684<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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