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1*c993ae02SXianjun Jiao                    GNU AFFERO GENERAL PUBLIC LICENSE
2*c993ae02SXianjun Jiao                       Version 3, 19 November 2007
3*c993ae02SXianjun Jiao
4*c993ae02SXianjun Jiao Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
5*c993ae02SXianjun Jiao Everyone is permitted to copy and distribute verbatim copies
6*c993ae02SXianjun Jiao of this license document, but changing it is not allowed.
7*c993ae02SXianjun Jiao
8*c993ae02SXianjun Jiao                            Preamble
9*c993ae02SXianjun Jiao
10*c993ae02SXianjun Jiao  The GNU Affero General Public License is a free, copyleft license for
11*c993ae02SXianjun Jiaosoftware and other kinds of works, specifically designed to ensure
12*c993ae02SXianjun Jiaocooperation with the community in the case of network server software.
13*c993ae02SXianjun Jiao
14*c993ae02SXianjun Jiao  The licenses for most software and other practical works are designed
15*c993ae02SXianjun Jiaoto take away your freedom to share and change the works.  By contrast,
16*c993ae02SXianjun Jiaoour General Public Licenses are intended to guarantee your freedom to
17*c993ae02SXianjun Jiaoshare and change all versions of a program--to make sure it remains free
18*c993ae02SXianjun Jiaosoftware for all its users.
19*c993ae02SXianjun Jiao
20*c993ae02SXianjun Jiao  When we speak of free software, we are referring to freedom, not
21*c993ae02SXianjun Jiaoprice.  Our General Public Licenses are designed to make sure that you
22*c993ae02SXianjun Jiaohave the freedom to distribute copies of free software (and charge for
23*c993ae02SXianjun Jiaothem if you wish), that you receive source code or can get it if you
24*c993ae02SXianjun Jiaowant it, that you can change the software or use pieces of it in new
25*c993ae02SXianjun Jiaofree programs, and that you know you can do these things.
26*c993ae02SXianjun Jiao
27*c993ae02SXianjun Jiao  Developers that use our General Public Licenses protect your rights
28*c993ae02SXianjun Jiaowith two steps: (1) assert copyright on the software, and (2) offer
29*c993ae02SXianjun Jiaoyou this License which gives you legal permission to copy, distribute
30*c993ae02SXianjun Jiaoand/or modify the software.
31*c993ae02SXianjun Jiao
32*c993ae02SXianjun Jiao  A secondary benefit of defending all users' freedom is that
33*c993ae02SXianjun Jiaoimprovements made in alternate versions of the program, if they
34*c993ae02SXianjun Jiaoreceive widespread use, become available for other developers to
35*c993ae02SXianjun Jiaoincorporate.  Many developers of free software are heartened and
36*c993ae02SXianjun Jiaoencouraged by the resulting cooperation.  However, in the case of
37*c993ae02SXianjun Jiaosoftware used on network servers, this result may fail to come about.
38*c993ae02SXianjun JiaoThe GNU General Public License permits making a modified version and
39*c993ae02SXianjun Jiaoletting the public access it on a server without ever releasing its
40*c993ae02SXianjun Jiaosource code to the public.
41*c993ae02SXianjun Jiao
42*c993ae02SXianjun Jiao  The GNU Affero General Public License is designed specifically to
43*c993ae02SXianjun Jiaoensure that, in such cases, the modified source code becomes available
44*c993ae02SXianjun Jiaoto the community.  It requires the operator of a network server to
45*c993ae02SXianjun Jiaoprovide the source code of the modified version running there to the
46*c993ae02SXianjun Jiaousers of that server.  Therefore, public use of a modified version, on
47*c993ae02SXianjun Jiaoa publicly accessible server, gives the public access to the source
48*c993ae02SXianjun Jiaocode of the modified version.
49*c993ae02SXianjun Jiao
50*c993ae02SXianjun Jiao  An older license, called the Affero General Public License and
51*c993ae02SXianjun Jiaopublished by Affero, was designed to accomplish similar goals.  This is
52*c993ae02SXianjun Jiaoa different license, not a version of the Affero GPL, but Affero has
53*c993ae02SXianjun Jiaoreleased a new version of the Affero GPL which permits relicensing under
54*c993ae02SXianjun Jiaothis license.
55*c993ae02SXianjun Jiao
56*c993ae02SXianjun Jiao  The precise terms and conditions for copying, distribution and
57*c993ae02SXianjun Jiaomodification follow.
58*c993ae02SXianjun Jiao
59*c993ae02SXianjun Jiao                       TERMS AND CONDITIONS
60*c993ae02SXianjun Jiao
61*c993ae02SXianjun Jiao  0. Definitions.
62*c993ae02SXianjun Jiao
63*c993ae02SXianjun Jiao  "This License" refers to version 3 of the GNU Affero General Public License.
64*c993ae02SXianjun Jiao
65*c993ae02SXianjun Jiao  "Copyright" also means copyright-like laws that apply to other kinds of
66*c993ae02SXianjun Jiaoworks, such as semiconductor masks.
67*c993ae02SXianjun Jiao
68*c993ae02SXianjun Jiao  "The Program" refers to any copyrightable work licensed under this
69*c993ae02SXianjun JiaoLicense.  Each licensee is addressed as "you".  "Licensees" and
70*c993ae02SXianjun Jiao"recipients" may be individuals or organizations.
71*c993ae02SXianjun Jiao
72*c993ae02SXianjun Jiao  To "modify" a work means to copy from or adapt all or part of the work
73*c993ae02SXianjun Jiaoin a fashion requiring copyright permission, other than the making of an
74*c993ae02SXianjun Jiaoexact copy.  The resulting work is called a "modified version" of the
75*c993ae02SXianjun Jiaoearlier work or a work "based on" the earlier work.
76*c993ae02SXianjun Jiao
77*c993ae02SXianjun Jiao  A "covered work" means either the unmodified Program or a work based
78*c993ae02SXianjun Jiaoon the Program.
79*c993ae02SXianjun Jiao
80*c993ae02SXianjun Jiao  To "propagate" a work means to do anything with it that, without
81*c993ae02SXianjun Jiaopermission, would make you directly or secondarily liable for
82*c993ae02SXianjun Jiaoinfringement under applicable copyright law, except executing it on a
83*c993ae02SXianjun Jiaocomputer or modifying a private copy.  Propagation includes copying,
84*c993ae02SXianjun Jiaodistribution (with or without modification), making available to the
85*c993ae02SXianjun Jiaopublic, and in some countries other activities as well.
86*c993ae02SXianjun Jiao
87*c993ae02SXianjun Jiao  To "convey" a work means any kind of propagation that enables other
88*c993ae02SXianjun Jiaoparties to make or receive copies.  Mere interaction with a user through
89*c993ae02SXianjun Jiaoa computer network, with no transfer of a copy, is not conveying.
90*c993ae02SXianjun Jiao
91*c993ae02SXianjun Jiao  An interactive user interface displays "Appropriate Legal Notices"
92*c993ae02SXianjun Jiaoto the extent that it includes a convenient and prominently visible
93*c993ae02SXianjun Jiaofeature that (1) displays an appropriate copyright notice, and (2)
94*c993ae02SXianjun Jiaotells the user that there is no warranty for the work (except to the
95*c993ae02SXianjun Jiaoextent that warranties are provided), that licensees may convey the
96*c993ae02SXianjun Jiaowork under this License, and how to view a copy of this License.  If
97*c993ae02SXianjun Jiaothe interface presents a list of user commands or options, such as a
98*c993ae02SXianjun Jiaomenu, a prominent item in the list meets this criterion.
99*c993ae02SXianjun Jiao
100*c993ae02SXianjun Jiao  1. Source Code.
101*c993ae02SXianjun Jiao
102*c993ae02SXianjun Jiao  The "source code" for a work means the preferred form of the work
103*c993ae02SXianjun Jiaofor making modifications to it.  "Object code" means any non-source
104*c993ae02SXianjun Jiaoform of a work.
105*c993ae02SXianjun Jiao
106*c993ae02SXianjun Jiao  A "Standard Interface" means an interface that either is an official
107*c993ae02SXianjun Jiaostandard defined by a recognized standards body, or, in the case of
108*c993ae02SXianjun Jiaointerfaces specified for a particular programming language, one that
109*c993ae02SXianjun Jiaois widely used among developers working in that language.
110*c993ae02SXianjun Jiao
111*c993ae02SXianjun Jiao  The "System Libraries" of an executable work include anything, other
112*c993ae02SXianjun Jiaothan the work as a whole, that (a) is included in the normal form of
113*c993ae02SXianjun Jiaopackaging a Major Component, but which is not part of that Major
114*c993ae02SXianjun JiaoComponent, and (b) serves only to enable use of the work with that
115*c993ae02SXianjun JiaoMajor Component, or to implement a Standard Interface for which an
116*c993ae02SXianjun Jiaoimplementation is available to the public in source code form.  A
117*c993ae02SXianjun Jiao"Major Component", in this context, means a major essential component
118*c993ae02SXianjun Jiao(kernel, window system, and so on) of the specific operating system
119*c993ae02SXianjun Jiao(if any) on which the executable work runs, or a compiler used to
120*c993ae02SXianjun Jiaoproduce the work, or an object code interpreter used to run it.
121*c993ae02SXianjun Jiao
122*c993ae02SXianjun Jiao  The "Corresponding Source" for a work in object code form means all
123*c993ae02SXianjun Jiaothe source code needed to generate, install, and (for an executable
124*c993ae02SXianjun Jiaowork) run the object code and to modify the work, including scripts to
125*c993ae02SXianjun Jiaocontrol those activities.  However, it does not include the work's
126*c993ae02SXianjun JiaoSystem Libraries, or general-purpose tools or generally available free
127*c993ae02SXianjun Jiaoprograms which are used unmodified in performing those activities but
128*c993ae02SXianjun Jiaowhich are not part of the work.  For example, Corresponding Source
129*c993ae02SXianjun Jiaoincludes interface definition files associated with source files for
130*c993ae02SXianjun Jiaothe work, and the source code for shared libraries and dynamically
131*c993ae02SXianjun Jiaolinked subprograms that the work is specifically designed to require,
132*c993ae02SXianjun Jiaosuch as by intimate data communication or control flow between those
133*c993ae02SXianjun Jiaosubprograms and other parts of the work.
134*c993ae02SXianjun Jiao
135*c993ae02SXianjun Jiao  The Corresponding Source need not include anything that users
136*c993ae02SXianjun Jiaocan regenerate automatically from other parts of the Corresponding
137*c993ae02SXianjun JiaoSource.
138*c993ae02SXianjun Jiao
139*c993ae02SXianjun Jiao  The Corresponding Source for a work in source code form is that
140*c993ae02SXianjun Jiaosame work.
141*c993ae02SXianjun Jiao
142*c993ae02SXianjun Jiao  2. Basic Permissions.
143*c993ae02SXianjun Jiao
144*c993ae02SXianjun Jiao  All rights granted under this License are granted for the term of
145*c993ae02SXianjun Jiaocopyright on the Program, and are irrevocable provided the stated
146*c993ae02SXianjun Jiaoconditions are met.  This License explicitly affirms your unlimited
147*c993ae02SXianjun Jiaopermission to run the unmodified Program.  The output from running a
148*c993ae02SXianjun Jiaocovered work is covered by this License only if the output, given its
149*c993ae02SXianjun Jiaocontent, constitutes a covered work.  This License acknowledges your
150*c993ae02SXianjun Jiaorights of fair use or other equivalent, as provided by copyright law.
151*c993ae02SXianjun Jiao
152*c993ae02SXianjun Jiao  You may make, run and propagate covered works that you do not
153*c993ae02SXianjun Jiaoconvey, without conditions so long as your license otherwise remains
154*c993ae02SXianjun Jiaoin force.  You may convey covered works to others for the sole purpose
155*c993ae02SXianjun Jiaoof having them make modifications exclusively for you, or provide you
156*c993ae02SXianjun Jiaowith facilities for running those works, provided that you comply with
157*c993ae02SXianjun Jiaothe terms of this License in conveying all material for which you do
158*c993ae02SXianjun Jiaonot control copyright.  Those thus making or running the covered works
159*c993ae02SXianjun Jiaofor you must do so exclusively on your behalf, under your direction
160*c993ae02SXianjun Jiaoand control, on terms that prohibit them from making any copies of
161*c993ae02SXianjun Jiaoyour copyrighted material outside their relationship with you.
162*c993ae02SXianjun Jiao
163*c993ae02SXianjun Jiao  Conveying under any other circumstances is permitted solely under
164*c993ae02SXianjun Jiaothe conditions stated below.  Sublicensing is not allowed; section 10
165*c993ae02SXianjun Jiaomakes it unnecessary.
166*c993ae02SXianjun Jiao
167*c993ae02SXianjun Jiao  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
168*c993ae02SXianjun Jiao
169*c993ae02SXianjun Jiao  No covered work shall be deemed part of an effective technological
170*c993ae02SXianjun Jiaomeasure under any applicable law fulfilling obligations under article
171*c993ae02SXianjun Jiao11 of the WIPO copyright treaty adopted on 20 December 1996, or
172*c993ae02SXianjun Jiaosimilar laws prohibiting or restricting circumvention of such
173*c993ae02SXianjun Jiaomeasures.
174*c993ae02SXianjun Jiao
175*c993ae02SXianjun Jiao  When you convey a covered work, you waive any legal power to forbid
176*c993ae02SXianjun Jiaocircumvention of technological measures to the extent such circumvention
177*c993ae02SXianjun Jiaois effected by exercising rights under this License with respect to
178*c993ae02SXianjun Jiaothe covered work, and you disclaim any intention to limit operation or
179*c993ae02SXianjun Jiaomodification of the work as a means of enforcing, against the work's
180*c993ae02SXianjun Jiaousers, your or third parties' legal rights to forbid circumvention of
181*c993ae02SXianjun Jiaotechnological measures.
182*c993ae02SXianjun Jiao
183*c993ae02SXianjun Jiao  4. Conveying Verbatim Copies.
184*c993ae02SXianjun Jiao
185*c993ae02SXianjun Jiao  You may convey verbatim copies of the Program's source code as you
186*c993ae02SXianjun Jiaoreceive it, in any medium, provided that you conspicuously and
187*c993ae02SXianjun Jiaoappropriately publish on each copy an appropriate copyright notice;
188*c993ae02SXianjun Jiaokeep intact all notices stating that this License and any
189*c993ae02SXianjun Jiaonon-permissive terms added in accord with section 7 apply to the code;
190*c993ae02SXianjun Jiaokeep intact all notices of the absence of any warranty; and give all
191*c993ae02SXianjun Jiaorecipients a copy of this License along with the Program.
192*c993ae02SXianjun Jiao
193*c993ae02SXianjun Jiao  You may charge any price or no price for each copy that you convey,
194*c993ae02SXianjun Jiaoand you may offer support or warranty protection for a fee.
195*c993ae02SXianjun Jiao
196*c993ae02SXianjun Jiao  5. Conveying Modified Source Versions.
197*c993ae02SXianjun Jiao
198*c993ae02SXianjun Jiao  You may convey a work based on the Program, or the modifications to
199*c993ae02SXianjun Jiaoproduce it from the Program, in the form of source code under the
200*c993ae02SXianjun Jiaoterms of section 4, provided that you also meet all of these conditions:
201*c993ae02SXianjun Jiao
202*c993ae02SXianjun Jiao    a) The work must carry prominent notices stating that you modified
203*c993ae02SXianjun Jiao    it, and giving a relevant date.
204*c993ae02SXianjun Jiao
205*c993ae02SXianjun Jiao    b) The work must carry prominent notices stating that it is
206*c993ae02SXianjun Jiao    released under this License and any conditions added under section
207*c993ae02SXianjun Jiao    7.  This requirement modifies the requirement in section 4 to
208*c993ae02SXianjun Jiao    "keep intact all notices".
209*c993ae02SXianjun Jiao
210*c993ae02SXianjun Jiao    c) You must license the entire work, as a whole, under this
211*c993ae02SXianjun Jiao    License to anyone who comes into possession of a copy.  This
212*c993ae02SXianjun Jiao    License will therefore apply, along with any applicable section 7
213*c993ae02SXianjun Jiao    additional terms, to the whole of the work, and all its parts,
214*c993ae02SXianjun Jiao    regardless of how they are packaged.  This License gives no
215*c993ae02SXianjun Jiao    permission to license the work in any other way, but it does not
216*c993ae02SXianjun Jiao    invalidate such permission if you have separately received it.
217*c993ae02SXianjun Jiao
218*c993ae02SXianjun Jiao    d) If the work has interactive user interfaces, each must display
219*c993ae02SXianjun Jiao    Appropriate Legal Notices; however, if the Program has interactive
220*c993ae02SXianjun Jiao    interfaces that do not display Appropriate Legal Notices, your
221*c993ae02SXianjun Jiao    work need not make them do so.
222*c993ae02SXianjun Jiao
223*c993ae02SXianjun Jiao  A compilation of a covered work with other separate and independent
224*c993ae02SXianjun Jiaoworks, which are not by their nature extensions of the covered work,
225*c993ae02SXianjun Jiaoand which are not combined with it such as to form a larger program,
226*c993ae02SXianjun Jiaoin or on a volume of a storage or distribution medium, is called an
227*c993ae02SXianjun Jiao"aggregate" if the compilation and its resulting copyright are not
228*c993ae02SXianjun Jiaoused to limit the access or legal rights of the compilation's users
229*c993ae02SXianjun Jiaobeyond what the individual works permit.  Inclusion of a covered work
230*c993ae02SXianjun Jiaoin an aggregate does not cause this License to apply to the other
231*c993ae02SXianjun Jiaoparts of the aggregate.
232*c993ae02SXianjun Jiao
233*c993ae02SXianjun Jiao  6. Conveying Non-Source Forms.
234*c993ae02SXianjun Jiao
235*c993ae02SXianjun Jiao  You may convey a covered work in object code form under the terms
236*c993ae02SXianjun Jiaoof sections 4 and 5, provided that you also convey the
237*c993ae02SXianjun Jiaomachine-readable Corresponding Source under the terms of this License,
238*c993ae02SXianjun Jiaoin one of these ways:
239*c993ae02SXianjun Jiao
240*c993ae02SXianjun Jiao    a) Convey the object code in, or embodied in, a physical product
241*c993ae02SXianjun Jiao    (including a physical distribution medium), accompanied by the
242*c993ae02SXianjun Jiao    Corresponding Source fixed on a durable physical medium
243*c993ae02SXianjun Jiao    customarily used for software interchange.
244*c993ae02SXianjun Jiao
245*c993ae02SXianjun Jiao    b) Convey the object code in, or embodied in, a physical product
246*c993ae02SXianjun Jiao    (including a physical distribution medium), accompanied by a
247*c993ae02SXianjun Jiao    written offer, valid for at least three years and valid for as
248*c993ae02SXianjun Jiao    long as you offer spare parts or customer support for that product
249*c993ae02SXianjun Jiao    model, to give anyone who possesses the object code either (1) a
250*c993ae02SXianjun Jiao    copy of the Corresponding Source for all the software in the
251*c993ae02SXianjun Jiao    product that is covered by this License, on a durable physical
252*c993ae02SXianjun Jiao    medium customarily used for software interchange, for a price no
253*c993ae02SXianjun Jiao    more than your reasonable cost of physically performing this
254*c993ae02SXianjun Jiao    conveying of source, or (2) access to copy the
255*c993ae02SXianjun Jiao    Corresponding Source from a network server at no charge.
256*c993ae02SXianjun Jiao
257*c993ae02SXianjun Jiao    c) Convey individual copies of the object code with a copy of the
258*c993ae02SXianjun Jiao    written offer to provide the Corresponding Source.  This
259*c993ae02SXianjun Jiao    alternative is allowed only occasionally and noncommercially, and
260*c993ae02SXianjun Jiao    only if you received the object code with such an offer, in accord
261*c993ae02SXianjun Jiao    with subsection 6b.
262*c993ae02SXianjun Jiao
263*c993ae02SXianjun Jiao    d) Convey the object code by offering access from a designated
264*c993ae02SXianjun Jiao    place (gratis or for a charge), and offer equivalent access to the
265*c993ae02SXianjun Jiao    Corresponding Source in the same way through the same place at no
266*c993ae02SXianjun Jiao    further charge.  You need not require recipients to copy the
267*c993ae02SXianjun Jiao    Corresponding Source along with the object code.  If the place to
268*c993ae02SXianjun Jiao    copy the object code is a network server, the Corresponding Source
269*c993ae02SXianjun Jiao    may be on a different server (operated by you or a third party)
270*c993ae02SXianjun Jiao    that supports equivalent copying facilities, provided you maintain
271*c993ae02SXianjun Jiao    clear directions next to the object code saying where to find the
272*c993ae02SXianjun Jiao    Corresponding Source.  Regardless of what server hosts the
273*c993ae02SXianjun Jiao    Corresponding Source, you remain obligated to ensure that it is
274*c993ae02SXianjun Jiao    available for as long as needed to satisfy these requirements.
275*c993ae02SXianjun Jiao
276*c993ae02SXianjun Jiao    e) Convey the object code using peer-to-peer transmission, provided
277*c993ae02SXianjun Jiao    you inform other peers where the object code and Corresponding
278*c993ae02SXianjun Jiao    Source of the work are being offered to the general public at no
279*c993ae02SXianjun Jiao    charge under subsection 6d.
280*c993ae02SXianjun Jiao
281*c993ae02SXianjun Jiao  A separable portion of the object code, whose source code is excluded
282*c993ae02SXianjun Jiaofrom the Corresponding Source as a System Library, need not be
283*c993ae02SXianjun Jiaoincluded in conveying the object code work.
284*c993ae02SXianjun Jiao
285*c993ae02SXianjun Jiao  A "User Product" is either (1) a "consumer product", which means any
286*c993ae02SXianjun Jiaotangible personal property which is normally used for personal, family,
287*c993ae02SXianjun Jiaoor household purposes, or (2) anything designed or sold for incorporation
288*c993ae02SXianjun Jiaointo a dwelling.  In determining whether a product is a consumer product,
289*c993ae02SXianjun Jiaodoubtful cases shall be resolved in favor of coverage.  For a particular
290*c993ae02SXianjun Jiaoproduct received by a particular user, "normally used" refers to a
291*c993ae02SXianjun Jiaotypical or common use of that class of product, regardless of the status
292*c993ae02SXianjun Jiaoof the particular user or of the way in which the particular user
293*c993ae02SXianjun Jiaoactually uses, or expects or is expected to use, the product.  A product
294*c993ae02SXianjun Jiaois a consumer product regardless of whether the product has substantial
295*c993ae02SXianjun Jiaocommercial, industrial or non-consumer uses, unless such uses represent
296*c993ae02SXianjun Jiaothe only significant mode of use of the product.
297*c993ae02SXianjun Jiao
298*c993ae02SXianjun Jiao  "Installation Information" for a User Product means any methods,
299*c993ae02SXianjun Jiaoprocedures, authorization keys, or other information required to install
300*c993ae02SXianjun Jiaoand execute modified versions of a covered work in that User Product from
301*c993ae02SXianjun Jiaoa modified version of its Corresponding Source.  The information must
302*c993ae02SXianjun Jiaosuffice to ensure that the continued functioning of the modified object
303*c993ae02SXianjun Jiaocode is in no case prevented or interfered with solely because
304*c993ae02SXianjun Jiaomodification has been made.
305*c993ae02SXianjun Jiao
306*c993ae02SXianjun Jiao  If you convey an object code work under this section in, or with, or
307*c993ae02SXianjun Jiaospecifically for use in, a User Product, and the conveying occurs as
308*c993ae02SXianjun Jiaopart of a transaction in which the right of possession and use of the
309*c993ae02SXianjun JiaoUser Product is transferred to the recipient in perpetuity or for a
310*c993ae02SXianjun Jiaofixed term (regardless of how the transaction is characterized), the
311*c993ae02SXianjun JiaoCorresponding Source conveyed under this section must be accompanied
312*c993ae02SXianjun Jiaoby the Installation Information.  But this requirement does not apply
313*c993ae02SXianjun Jiaoif neither you nor any third party retains the ability to install
314*c993ae02SXianjun Jiaomodified object code on the User Product (for example, the work has
315*c993ae02SXianjun Jiaobeen installed in ROM).
316*c993ae02SXianjun Jiao
317*c993ae02SXianjun Jiao  The requirement to provide Installation Information does not include a
318*c993ae02SXianjun Jiaorequirement to continue to provide support service, warranty, or updates
319*c993ae02SXianjun Jiaofor a work that has been modified or installed by the recipient, or for
320*c993ae02SXianjun Jiaothe User Product in which it has been modified or installed.  Access to a
321*c993ae02SXianjun Jiaonetwork may be denied when the modification itself materially and
322*c993ae02SXianjun Jiaoadversely affects the operation of the network or violates the rules and
323*c993ae02SXianjun Jiaoprotocols for communication across the network.
324*c993ae02SXianjun Jiao
325*c993ae02SXianjun Jiao  Corresponding Source conveyed, and Installation Information provided,
326*c993ae02SXianjun Jiaoin accord with this section must be in a format that is publicly
327*c993ae02SXianjun Jiaodocumented (and with an implementation available to the public in
328*c993ae02SXianjun Jiaosource code form), and must require no special password or key for
329*c993ae02SXianjun Jiaounpacking, reading or copying.
330*c993ae02SXianjun Jiao
331*c993ae02SXianjun Jiao  7. Additional Terms.
332*c993ae02SXianjun Jiao
333*c993ae02SXianjun Jiao  "Additional permissions" are terms that supplement the terms of this
334*c993ae02SXianjun JiaoLicense by making exceptions from one or more of its conditions.
335*c993ae02SXianjun JiaoAdditional permissions that are applicable to the entire Program shall
336*c993ae02SXianjun Jiaobe treated as though they were included in this License, to the extent
337*c993ae02SXianjun Jiaothat they are valid under applicable law.  If additional permissions
338*c993ae02SXianjun Jiaoapply only to part of the Program, that part may be used separately
339*c993ae02SXianjun Jiaounder those permissions, but the entire Program remains governed by
340*c993ae02SXianjun Jiaothis License without regard to the additional permissions.
341*c993ae02SXianjun Jiao
342*c993ae02SXianjun Jiao  When you convey a copy of a covered work, you may at your option
343*c993ae02SXianjun Jiaoremove any additional permissions from that copy, or from any part of
344*c993ae02SXianjun Jiaoit.  (Additional permissions may be written to require their own
345*c993ae02SXianjun Jiaoremoval in certain cases when you modify the work.)  You may place
346*c993ae02SXianjun Jiaoadditional permissions on material, added by you to a covered work,
347*c993ae02SXianjun Jiaofor which you have or can give appropriate copyright permission.
348*c993ae02SXianjun Jiao
349*c993ae02SXianjun Jiao  Notwithstanding any other provision of this License, for material you
350*c993ae02SXianjun Jiaoadd to a covered work, you may (if authorized by the copyright holders of
351*c993ae02SXianjun Jiaothat material) supplement the terms of this License with terms:
352*c993ae02SXianjun Jiao
353*c993ae02SXianjun Jiao    a) Disclaiming warranty or limiting liability differently from the
354*c993ae02SXianjun Jiao    terms of sections 15 and 16 of this License; or
355*c993ae02SXianjun Jiao
356*c993ae02SXianjun Jiao    b) Requiring preservation of specified reasonable legal notices or
357*c993ae02SXianjun Jiao    author attributions in that material or in the Appropriate Legal
358*c993ae02SXianjun Jiao    Notices displayed by works containing it; or
359*c993ae02SXianjun Jiao
360*c993ae02SXianjun Jiao    c) Prohibiting misrepresentation of the origin of that material, or
361*c993ae02SXianjun Jiao    requiring that modified versions of such material be marked in
362*c993ae02SXianjun Jiao    reasonable ways as different from the original version; or
363*c993ae02SXianjun Jiao
364*c993ae02SXianjun Jiao    d) Limiting the use for publicity purposes of names of licensors or
365*c993ae02SXianjun Jiao    authors of the material; or
366*c993ae02SXianjun Jiao
367*c993ae02SXianjun Jiao    e) Declining to grant rights under trademark law for use of some
368*c993ae02SXianjun Jiao    trade names, trademarks, or service marks; or
369*c993ae02SXianjun Jiao
370*c993ae02SXianjun Jiao    f) Requiring indemnification of licensors and authors of that
371*c993ae02SXianjun Jiao    material by anyone who conveys the material (or modified versions of
372*c993ae02SXianjun Jiao    it) with contractual assumptions of liability to the recipient, for
373*c993ae02SXianjun Jiao    any liability that these contractual assumptions directly impose on
374*c993ae02SXianjun Jiao    those licensors and authors.
375*c993ae02SXianjun Jiao
376*c993ae02SXianjun Jiao  All other non-permissive additional terms are considered "further
377*c993ae02SXianjun Jiaorestrictions" within the meaning of section 10.  If the Program as you
378*c993ae02SXianjun Jiaoreceived it, or any part of it, contains a notice stating that it is
379*c993ae02SXianjun Jiaogoverned by this License along with a term that is a further
380*c993ae02SXianjun Jiaorestriction, you may remove that term.  If a license document contains
381*c993ae02SXianjun Jiaoa further restriction but permits relicensing or conveying under this
382*c993ae02SXianjun JiaoLicense, you may add to a covered work material governed by the terms
383*c993ae02SXianjun Jiaoof that license document, provided that the further restriction does
384*c993ae02SXianjun Jiaonot survive such relicensing or conveying.
385*c993ae02SXianjun Jiao
386*c993ae02SXianjun Jiao  If you add terms to a covered work in accord with this section, you
387*c993ae02SXianjun Jiaomust place, in the relevant source files, a statement of the
388*c993ae02SXianjun Jiaoadditional terms that apply to those files, or a notice indicating
389*c993ae02SXianjun Jiaowhere to find the applicable terms.
390*c993ae02SXianjun Jiao
391*c993ae02SXianjun Jiao  Additional terms, permissive or non-permissive, may be stated in the
392*c993ae02SXianjun Jiaoform of a separately written license, or stated as exceptions;
393*c993ae02SXianjun Jiaothe above requirements apply either way.
394*c993ae02SXianjun Jiao
395*c993ae02SXianjun Jiao  8. Termination.
396*c993ae02SXianjun Jiao
397*c993ae02SXianjun Jiao  You may not propagate or modify a covered work except as expressly
398*c993ae02SXianjun Jiaoprovided under this License.  Any attempt otherwise to propagate or
399*c993ae02SXianjun Jiaomodify it is void, and will automatically terminate your rights under
400*c993ae02SXianjun Jiaothis License (including any patent licenses granted under the third
401*c993ae02SXianjun Jiaoparagraph of section 11).
402*c993ae02SXianjun Jiao
403*c993ae02SXianjun Jiao  However, if you cease all violation of this License, then your
404*c993ae02SXianjun Jiaolicense from a particular copyright holder is reinstated (a)
405*c993ae02SXianjun Jiaoprovisionally, unless and until the copyright holder explicitly and
406*c993ae02SXianjun Jiaofinally terminates your license, and (b) permanently, if the copyright
407*c993ae02SXianjun Jiaoholder fails to notify you of the violation by some reasonable means
408*c993ae02SXianjun Jiaoprior to 60 days after the cessation.
409*c993ae02SXianjun Jiao
410*c993ae02SXianjun Jiao  Moreover, your license from a particular copyright holder is
411*c993ae02SXianjun Jiaoreinstated permanently if the copyright holder notifies you of the
412*c993ae02SXianjun Jiaoviolation by some reasonable means, this is the first time you have
413*c993ae02SXianjun Jiaoreceived notice of violation of this License (for any work) from that
414*c993ae02SXianjun Jiaocopyright holder, and you cure the violation prior to 30 days after
415*c993ae02SXianjun Jiaoyour receipt of the notice.
416*c993ae02SXianjun Jiao
417*c993ae02SXianjun Jiao  Termination of your rights under this section does not terminate the
418*c993ae02SXianjun Jiaolicenses of parties who have received copies or rights from you under
419*c993ae02SXianjun Jiaothis License.  If your rights have been terminated and not permanently
420*c993ae02SXianjun Jiaoreinstated, you do not qualify to receive new licenses for the same
421*c993ae02SXianjun Jiaomaterial under section 10.
422*c993ae02SXianjun Jiao
423*c993ae02SXianjun Jiao  9. Acceptance Not Required for Having Copies.
424*c993ae02SXianjun Jiao
425*c993ae02SXianjun Jiao  You are not required to accept this License in order to receive or
426*c993ae02SXianjun Jiaorun a copy of the Program.  Ancillary propagation of a covered work
427*c993ae02SXianjun Jiaooccurring solely as a consequence of using peer-to-peer transmission
428*c993ae02SXianjun Jiaoto receive a copy likewise does not require acceptance.  However,
429*c993ae02SXianjun Jiaonothing other than this License grants you permission to propagate or
430*c993ae02SXianjun Jiaomodify any covered work.  These actions infringe copyright if you do
431*c993ae02SXianjun Jiaonot accept this License.  Therefore, by modifying or propagating a
432*c993ae02SXianjun Jiaocovered work, you indicate your acceptance of this License to do so.
433*c993ae02SXianjun Jiao
434*c993ae02SXianjun Jiao  10. Automatic Licensing of Downstream Recipients.
435*c993ae02SXianjun Jiao
436*c993ae02SXianjun Jiao  Each time you convey a covered work, the recipient automatically
437*c993ae02SXianjun Jiaoreceives a license from the original licensors, to run, modify and
438*c993ae02SXianjun Jiaopropagate that work, subject to this License.  You are not responsible
439*c993ae02SXianjun Jiaofor enforcing compliance by third parties with this License.
440*c993ae02SXianjun Jiao
441*c993ae02SXianjun Jiao  An "entity transaction" is a transaction transferring control of an
442*c993ae02SXianjun Jiaoorganization, or substantially all assets of one, or subdividing an
443*c993ae02SXianjun Jiaoorganization, or merging organizations.  If propagation of a covered
444*c993ae02SXianjun Jiaowork results from an entity transaction, each party to that
445*c993ae02SXianjun Jiaotransaction who receives a copy of the work also receives whatever
446*c993ae02SXianjun Jiaolicenses to the work the party's predecessor in interest had or could
447*c993ae02SXianjun Jiaogive under the previous paragraph, plus a right to possession of the
448*c993ae02SXianjun JiaoCorresponding Source of the work from the predecessor in interest, if
449*c993ae02SXianjun Jiaothe predecessor has it or can get it with reasonable efforts.
450*c993ae02SXianjun Jiao
451*c993ae02SXianjun Jiao  You may not impose any further restrictions on the exercise of the
452*c993ae02SXianjun Jiaorights granted or affirmed under this License.  For example, you may
453*c993ae02SXianjun Jiaonot impose a license fee, royalty, or other charge for exercise of
454*c993ae02SXianjun Jiaorights granted under this License, and you may not initiate litigation
455*c993ae02SXianjun Jiao(including a cross-claim or counterclaim in a lawsuit) alleging that
456*c993ae02SXianjun Jiaoany patent claim is infringed by making, using, selling, offering for
457*c993ae02SXianjun Jiaosale, or importing the Program or any portion of it.
458*c993ae02SXianjun Jiao
459*c993ae02SXianjun Jiao  11. Patents.
460*c993ae02SXianjun Jiao
461*c993ae02SXianjun Jiao  A "contributor" is a copyright holder who authorizes use under this
462*c993ae02SXianjun JiaoLicense of the Program or a work on which the Program is based.  The
463*c993ae02SXianjun Jiaowork thus licensed is called the contributor's "contributor version".
464*c993ae02SXianjun Jiao
465*c993ae02SXianjun Jiao  A contributor's "essential patent claims" are all patent claims
466*c993ae02SXianjun Jiaoowned or controlled by the contributor, whether already acquired or
467*c993ae02SXianjun Jiaohereafter acquired, that would be infringed by some manner, permitted
468*c993ae02SXianjun Jiaoby this License, of making, using, or selling its contributor version,
469*c993ae02SXianjun Jiaobut do not include claims that would be infringed only as a
470*c993ae02SXianjun Jiaoconsequence of further modification of the contributor version.  For
471*c993ae02SXianjun Jiaopurposes of this definition, "control" includes the right to grant
472*c993ae02SXianjun Jiaopatent sublicenses in a manner consistent with the requirements of
473*c993ae02SXianjun Jiaothis License.
474*c993ae02SXianjun Jiao
475*c993ae02SXianjun Jiao  Each contributor grants you a non-exclusive, worldwide, royalty-free
476*c993ae02SXianjun Jiaopatent license under the contributor's essential patent claims, to
477*c993ae02SXianjun Jiaomake, use, sell, offer for sale, import and otherwise run, modify and
478*c993ae02SXianjun Jiaopropagate the contents of its contributor version.
479*c993ae02SXianjun Jiao
480*c993ae02SXianjun Jiao  In the following three paragraphs, a "patent license" is any express
481*c993ae02SXianjun Jiaoagreement or commitment, however denominated, not to enforce a patent
482*c993ae02SXianjun Jiao(such as an express permission to practice a patent or covenant not to
483*c993ae02SXianjun Jiaosue for patent infringement).  To "grant" such a patent license to a
484*c993ae02SXianjun Jiaoparty means to make such an agreement or commitment not to enforce a
485*c993ae02SXianjun Jiaopatent against the party.
486*c993ae02SXianjun Jiao
487*c993ae02SXianjun Jiao  If you convey a covered work, knowingly relying on a patent license,
488*c993ae02SXianjun Jiaoand the Corresponding Source of the work is not available for anyone
489*c993ae02SXianjun Jiaoto copy, free of charge and under the terms of this License, through a
490*c993ae02SXianjun Jiaopublicly available network server or other readily accessible means,
491*c993ae02SXianjun Jiaothen you must either (1) cause the Corresponding Source to be so
492*c993ae02SXianjun Jiaoavailable, or (2) arrange to deprive yourself of the benefit of the
493*c993ae02SXianjun Jiaopatent license for this particular work, or (3) arrange, in a manner
494*c993ae02SXianjun Jiaoconsistent with the requirements of this License, to extend the patent
495*c993ae02SXianjun Jiaolicense to downstream recipients.  "Knowingly relying" means you have
496*c993ae02SXianjun Jiaoactual knowledge that, but for the patent license, your conveying the
497*c993ae02SXianjun Jiaocovered work in a country, or your recipient's use of the covered work
498*c993ae02SXianjun Jiaoin a country, would infringe one or more identifiable patents in that
499*c993ae02SXianjun Jiaocountry that you have reason to believe are valid.
500*c993ae02SXianjun Jiao
501*c993ae02SXianjun Jiao  If, pursuant to or in connection with a single transaction or
502*c993ae02SXianjun Jiaoarrangement, you convey, or propagate by procuring conveyance of, a
503*c993ae02SXianjun Jiaocovered work, and grant a patent license to some of the parties
504*c993ae02SXianjun Jiaoreceiving the covered work authorizing them to use, propagate, modify
505*c993ae02SXianjun Jiaoor convey a specific copy of the covered work, then the patent license
506*c993ae02SXianjun Jiaoyou grant is automatically extended to all recipients of the covered
507*c993ae02SXianjun Jiaowork and works based on it.
508*c993ae02SXianjun Jiao
509*c993ae02SXianjun Jiao  A patent license is "discriminatory" if it does not include within
510*c993ae02SXianjun Jiaothe scope of its coverage, prohibits the exercise of, or is
511*c993ae02SXianjun Jiaoconditioned on the non-exercise of one or more of the rights that are
512*c993ae02SXianjun Jiaospecifically granted under this License.  You may not convey a covered
513*c993ae02SXianjun Jiaowork if you are a party to an arrangement with a third party that is
514*c993ae02SXianjun Jiaoin the business of distributing software, under which you make payment
515*c993ae02SXianjun Jiaoto the third party based on the extent of your activity of conveying
516*c993ae02SXianjun Jiaothe work, and under which the third party grants, to any of the
517*c993ae02SXianjun Jiaoparties who would receive the covered work from you, a discriminatory
518*c993ae02SXianjun Jiaopatent license (a) in connection with copies of the covered work
519*c993ae02SXianjun Jiaoconveyed by you (or copies made from those copies), or (b) primarily
520*c993ae02SXianjun Jiaofor and in connection with specific products or compilations that
521*c993ae02SXianjun Jiaocontain the covered work, unless you entered into that arrangement,
522*c993ae02SXianjun Jiaoor that patent license was granted, prior to 28 March 2007.
523*c993ae02SXianjun Jiao
524*c993ae02SXianjun Jiao  Nothing in this License shall be construed as excluding or limiting
525*c993ae02SXianjun Jiaoany implied license or other defenses to infringement that may
526*c993ae02SXianjun Jiaootherwise be available to you under applicable patent law.
527*c993ae02SXianjun Jiao
528*c993ae02SXianjun Jiao  12. No Surrender of Others' Freedom.
529*c993ae02SXianjun Jiao
530*c993ae02SXianjun Jiao  If conditions are imposed on you (whether by court order, agreement or
531*c993ae02SXianjun Jiaootherwise) that contradict the conditions of this License, they do not
532*c993ae02SXianjun Jiaoexcuse you from the conditions of this License.  If you cannot convey a
533*c993ae02SXianjun Jiaocovered work so as to satisfy simultaneously your obligations under this
534*c993ae02SXianjun JiaoLicense and any other pertinent obligations, then as a consequence you may
535*c993ae02SXianjun Jiaonot convey it at all.  For example, if you agree to terms that obligate you
536*c993ae02SXianjun Jiaoto collect a royalty for further conveying from those to whom you convey
537*c993ae02SXianjun Jiaothe Program, the only way you could satisfy both those terms and this
538*c993ae02SXianjun JiaoLicense would be to refrain entirely from conveying the Program.
539*c993ae02SXianjun Jiao
540*c993ae02SXianjun Jiao  13. Remote Network Interaction; Use with the GNU General Public License.
541*c993ae02SXianjun Jiao
542*c993ae02SXianjun Jiao  Notwithstanding any other provision of this License, if you modify the
543*c993ae02SXianjun JiaoProgram, your modified version must prominently offer all users
544*c993ae02SXianjun Jiaointeracting with it remotely through a computer network (if your version
545*c993ae02SXianjun Jiaosupports such interaction) an opportunity to receive the Corresponding
546*c993ae02SXianjun JiaoSource of your version by providing access to the Corresponding Source
547*c993ae02SXianjun Jiaofrom a network server at no charge, through some standard or customary
548*c993ae02SXianjun Jiaomeans of facilitating copying of software.  This Corresponding Source
549*c993ae02SXianjun Jiaoshall include the Corresponding Source for any work covered by version 3
550*c993ae02SXianjun Jiaoof the GNU General Public License that is incorporated pursuant to the
551*c993ae02SXianjun Jiaofollowing paragraph.
552*c993ae02SXianjun Jiao
553*c993ae02SXianjun Jiao  Notwithstanding any other provision of this License, you have
554*c993ae02SXianjun Jiaopermission to link or combine any covered work with a work licensed
555*c993ae02SXianjun Jiaounder version 3 of the GNU General Public License into a single
556*c993ae02SXianjun Jiaocombined work, and to convey the resulting work.  The terms of this
557*c993ae02SXianjun JiaoLicense will continue to apply to the part which is the covered work,
558*c993ae02SXianjun Jiaobut the work with which it is combined will remain governed by version
559*c993ae02SXianjun Jiao3 of the GNU General Public License.
560*c993ae02SXianjun Jiao
561*c993ae02SXianjun Jiao  14. Revised Versions of this License.
562*c993ae02SXianjun Jiao
563*c993ae02SXianjun Jiao  The Free Software Foundation may publish revised and/or new versions of
564*c993ae02SXianjun Jiaothe GNU Affero General Public License from time to time.  Such new versions
565*c993ae02SXianjun Jiaowill be similar in spirit to the present version, but may differ in detail to
566*c993ae02SXianjun Jiaoaddress new problems or concerns.
567*c993ae02SXianjun Jiao
568*c993ae02SXianjun Jiao  Each version is given a distinguishing version number.  If the
569*c993ae02SXianjun JiaoProgram specifies that a certain numbered version of the GNU Affero General
570*c993ae02SXianjun JiaoPublic License "or any later version" applies to it, you have the
571*c993ae02SXianjun Jiaooption of following the terms and conditions either of that numbered
572*c993ae02SXianjun Jiaoversion or of any later version published by the Free Software
573*c993ae02SXianjun JiaoFoundation.  If the Program does not specify a version number of the
574*c993ae02SXianjun JiaoGNU Affero General Public License, you may choose any version ever published
575*c993ae02SXianjun Jiaoby the Free Software Foundation.
576*c993ae02SXianjun Jiao
577*c993ae02SXianjun Jiao  If the Program specifies that a proxy can decide which future
578*c993ae02SXianjun Jiaoversions of the GNU Affero General Public License can be used, that proxy's
579*c993ae02SXianjun Jiaopublic statement of acceptance of a version permanently authorizes you
580*c993ae02SXianjun Jiaoto choose that version for the Program.
581*c993ae02SXianjun Jiao
582*c993ae02SXianjun Jiao  Later license versions may give you additional or different
583*c993ae02SXianjun Jiaopermissions.  However, no additional obligations are imposed on any
584*c993ae02SXianjun Jiaoauthor or copyright holder as a result of your choosing to follow a
585*c993ae02SXianjun Jiaolater version.
586*c993ae02SXianjun Jiao
587*c993ae02SXianjun Jiao  15. Disclaimer of Warranty.
588*c993ae02SXianjun Jiao
589*c993ae02SXianjun Jiao  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
590*c993ae02SXianjun JiaoAPPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
591*c993ae02SXianjun JiaoHOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
592*c993ae02SXianjun JiaoOF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
593*c993ae02SXianjun JiaoTHE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
594*c993ae02SXianjun JiaoPURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
595*c993ae02SXianjun JiaoIS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
596*c993ae02SXianjun JiaoALL NECESSARY SERVICING, REPAIR OR CORRECTION.
597*c993ae02SXianjun Jiao
598*c993ae02SXianjun Jiao  16. Limitation of Liability.
599*c993ae02SXianjun Jiao
600*c993ae02SXianjun Jiao  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
601*c993ae02SXianjun JiaoWILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
602*c993ae02SXianjun JiaoTHE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
603*c993ae02SXianjun JiaoGENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
604*c993ae02SXianjun JiaoUSE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
605*c993ae02SXianjun JiaoDATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
606*c993ae02SXianjun JiaoPARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
607*c993ae02SXianjun JiaoEVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
608*c993ae02SXianjun JiaoSUCH DAMAGES.
609*c993ae02SXianjun Jiao
610*c993ae02SXianjun Jiao  17. Interpretation of Sections 15 and 16.
611*c993ae02SXianjun Jiao
612*c993ae02SXianjun Jiao  If the disclaimer of warranty and limitation of liability provided
613*c993ae02SXianjun Jiaoabove cannot be given local legal effect according to their terms,
614*c993ae02SXianjun Jiaoreviewing courts shall apply local law that most closely approximates
615*c993ae02SXianjun Jiaoan absolute waiver of all civil liability in connection with the
616*c993ae02SXianjun JiaoProgram, unless a warranty or assumption of liability accompanies a
617*c993ae02SXianjun Jiaocopy of the Program in return for a fee.
618*c993ae02SXianjun Jiao
619*c993ae02SXianjun Jiao                     END OF TERMS AND CONDITIONS
620*c993ae02SXianjun Jiao
621*c993ae02SXianjun Jiao            How to Apply These Terms to Your New Programs
622*c993ae02SXianjun Jiao
623*c993ae02SXianjun Jiao  If you develop a new program, and you want it to be of the greatest
624*c993ae02SXianjun Jiaopossible use to the public, the best way to achieve this is to make it
625*c993ae02SXianjun Jiaofree software which everyone can redistribute and change under these terms.
626*c993ae02SXianjun Jiao
627*c993ae02SXianjun Jiao  To do so, attach the following notices to the program.  It is safest
628*c993ae02SXianjun Jiaoto attach them to the start of each source file to most effectively
629*c993ae02SXianjun Jiaostate the exclusion of warranty; and each file should have at least
630*c993ae02SXianjun Jiaothe "copyright" line and a pointer to where the full notice is found.
631*c993ae02SXianjun Jiao
632*c993ae02SXianjun Jiao    <one line to give the program's name and a brief idea of what it does.>
633*c993ae02SXianjun Jiao    Copyright (C) <year>  <name of author>
634*c993ae02SXianjun Jiao
635*c993ae02SXianjun Jiao    This program is free software: you can redistribute it and/or modify
636*c993ae02SXianjun Jiao    it under the terms of the GNU Affero General Public License as published by
637*c993ae02SXianjun Jiao    the Free Software Foundation, either version 3 of the License, or
638*c993ae02SXianjun Jiao    (at your option) any later version.
639*c993ae02SXianjun Jiao
640*c993ae02SXianjun Jiao    This program is distributed in the hope that it will be useful,
641*c993ae02SXianjun Jiao    but WITHOUT ANY WARRANTY; without even the implied warranty of
642*c993ae02SXianjun Jiao    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
643*c993ae02SXianjun Jiao    GNU Affero General Public License for more details.
644*c993ae02SXianjun Jiao
645*c993ae02SXianjun Jiao    You should have received a copy of the GNU Affero General Public License
646*c993ae02SXianjun Jiao    along with this program.  If not, see <http://www.gnu.org/licenses/>.
647*c993ae02SXianjun Jiao
648*c993ae02SXianjun JiaoAlso add information on how to contact you by electronic and paper mail.
649*c993ae02SXianjun Jiao
650*c993ae02SXianjun Jiao  If your software can interact with users remotely through a computer
651*c993ae02SXianjun Jiaonetwork, you should also make sure that it provides a way for users to
652*c993ae02SXianjun Jiaoget its source.  For example, if your program is a web application, its
653*c993ae02SXianjun Jiaointerface could display a "Source" link that leads users to an archive
654*c993ae02SXianjun Jiaoof the code.  There are many ways you could offer source, and different
655*c993ae02SXianjun Jiaosolutions will be better for different programs; see section 13 for the
656*c993ae02SXianjun Jiaospecific requirements.
657*c993ae02SXianjun Jiao
658*c993ae02SXianjun Jiao  You should also get your employer (if you work as a programmer) or school,
659*c993ae02SXianjun Jiaoif any, to sign a "copyright disclaimer" for the program, if necessary.
660*c993ae02SXianjun JiaoFor more information on this, and how to apply and follow the GNU AGPL, see
661*c993ae02SXianjun Jiao<http://www.gnu.org/licenses/>.
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