321 行
16 KiB
Plaintext
321 行
16 KiB
Plaintext
# GNU GENERAL PUBLIC LICENSE
|
|
|
|
Version 3, 29 June 2007
|
|
|
|
Copyright (C) 2007 Free Software Foundation, Inc.
|
|
<https://fsf.org/>
|
|
|
|
Everyone is permitted to copy and distribute verbatim copies of this
|
|
license document, but changing it is not allowed.
|
|
|
|
## Preamble
|
|
|
|
The GNU General Public License is a free, copyleft license for
|
|
software and other kinds of works.
|
|
|
|
The licenses for most software and other practical works are designed
|
|
to take away your freedom to share and change the works. By contrast,
|
|
the GNU General Public License is intended to guarantee your freedom
|
|
to share and change all versions of a program--to make sure it remains
|
|
free software for all its users. We, the Free Software Foundation, use
|
|
the GNU General Public License for most of our software; it applies
|
|
also to any other work released this way by its authors. You can apply
|
|
it to your programs, too.
|
|
|
|
When we speak of free software, we are referring to freedom, not
|
|
price. Our General Public Licenses are designed to make sure that you
|
|
have the freedom to distribute copies of free software (and charge for
|
|
them if you wish), that you receive source code or can get it if you
|
|
want it, that you can change the software or use pieces of it in new
|
|
free programs, and that you know you can do these things.
|
|
|
|
To protect your rights, we need to prevent others from denying you
|
|
these rights or asking you to surrender the rights. Therefore, you
|
|
have certain responsibilities if you distribute copies of the
|
|
software, or if you modify it: responsibilities to respect the freedom
|
|
of others.
|
|
|
|
For example, if you distribute copies of such a program, whether
|
|
gratis or for a fee, you must pass on to the recipients the same
|
|
freedoms that you received. You must make sure that they, too, receive
|
|
or can get the source code. And you must show them these terms so they
|
|
know their rights.
|
|
|
|
Developers that use the GNU GPL protect your rights with two steps:
|
|
(1) assert copyright on the software, and (2) offer you this License
|
|
giving you legal permission to copy, distribute and/or modify it.
|
|
|
|
For the developers' and authors' protection, the GPL clearly explains
|
|
that there is no warranty for this free software. For both users' and
|
|
authors' sake, the GPL requires that modified versions be marked as
|
|
changed, so that their problems will not be attributed erroneously to
|
|
authors of previous versions.
|
|
|
|
Some devices are designed to deny users access to install or run
|
|
modified versions of the software inside them, although the
|
|
manufacturer can do so. This is fundamentally incompatible with the
|
|
aim of protecting users' freedom to change the software. The
|
|
systematic pattern of such abuse occurs in the area of products for
|
|
individuals to use, which is precisely where it is most unacceptable.
|
|
Therefore, we have designed this version of the GPL to prohibit the
|
|
practice for those products. If such problems arise substantially in
|
|
other domains, we stand ready to extend this provision to those
|
|
domains in future versions of the GPL, as needed to protect the
|
|
freedom of users.
|
|
|
|
Finally, every program is threatened constantly by software patents.
|
|
States should not allow patents to restrict development and use of
|
|
software on general-purpose computers, but in those that do, we wish
|
|
to avoid the special danger that patents applied to a free program
|
|
could make it effectively proprietary. To prevent this, the GPL
|
|
assures that patents cannot be used to render the program non-free.
|
|
|
|
The precise terms and conditions for copying, distribution and
|
|
modification follow.
|
|
|
|
## TERMS AND CONDITIONS
|
|
|
|
### 0. Definitions
|
|
|
|
"This License" refers to version 3 of the GNU General Public License.
|
|
|
|
"Copyright" also means copyright-like laws that apply to other kinds
|
|
of works, such as semiconductor masks.
|
|
|
|
"The Program" refers to any copyrightable work licensed under this
|
|
License. Each licensee is addressed as "you". "Licensees" and
|
|
"recipients" may be individuals or organizations.
|
|
|
|
To "modify" a work means to copy from or adapt all or part of the work
|
|
in a fashion requiring copyright permission, other than the making of
|
|
an exact copy. The resulting work is called a "modified version" of
|
|
the earlier work or a work "based on" the earlier work.
|
|
|
|
A "covered work" means either the unmodified Program or a work based
|
|
on the Program.
|
|
|
|
To "propagate" a work means to do anything with it that, without
|
|
permission, would make you directly or secondarily liable for
|
|
infringement under applicable copyright law, except executing it on a
|
|
computer or modifying a private copy. Propagation includes copying,
|
|
distribution (with or without modification), making available to the
|
|
public, and in some countries other activities as well.
|
|
|
|
To "convey" a work means any kind of propagation that enables other
|
|
parties to make or receive copies. Mere interaction with a user
|
|
through a computer network, with no transfer of a copy, is not
|
|
conveying.
|
|
|
|
An interactive user interface displays "Appropriate Legal Notices" to
|
|
the extent that it includes a convenient and prominently visible
|
|
feature that (1) displays an appropriate copyright notice, and (2)
|
|
tells the user that there is no warranty for the work (except to the
|
|
extent that warranties are provided), that licensees may convey the
|
|
work under this License, and how to view a copy of this License. If
|
|
the interface presents a list of user commands or options, such as a
|
|
menu, a prominent item in the list meets this criterion.
|
|
|
|
### 1. Source Code
|
|
|
|
The "source code" for a work means the preferred form of the work for
|
|
making modifications to it. "Object code" means any non-source form of
|
|
a work.
|
|
|
|
A "Standard Interface" means an interface that either is an official
|
|
standard defined by a recognized standards body, or, in the case of
|
|
interfaces specified for a particular programming language, one that
|
|
is widely used among developers working in that language.
|
|
|
|
The "System Libraries" of an executable work include anything, other
|
|
than the work as a whole, that (a) is included in the normal form of
|
|
packaging a Major Component, but which is not part of that Major
|
|
Component, and (b) serves only to enable use of the work with that
|
|
Major Component, or to implement a Standard Interface for which an
|
|
implementation is available to the public in source code form. A
|
|
"Major Component", in this context, means a major essential component
|
|
(kernel, window system, and so on) of the specific operating system
|
|
(if any) on which the executable work runs, or a compiler used to
|
|
produce the work, or an object code interpreter used to run it.
|
|
|
|
The "Corresponding Source" for a work in object code form means all
|
|
the source code needed to generate, install, and (for an executable
|
|
work) run the object code and to modify the work, including scripts to
|
|
control those activities. However, it does not include the work's
|
|
System Libraries, or general-purpose tools or generally available free
|
|
programs which are used unmodified in performing those activities but
|
|
which are not part of the work. For example, Corresponding Source
|
|
includes interface definition files associated with source files for
|
|
the work, and the source code for shared libraries and dynamically
|
|
linked subprograms that the work is specifically designed to require,
|
|
such as by intimate data communication or control flow between those
|
|
subprograms and other parts of the work.
|
|
|
|
The Corresponding Source need not include anything that users can
|
|
regenerate automatically from other parts of the Corresponding Source.
|
|
|
|
The Corresponding Source for a work in source code form is that same
|
|
work.
|
|
|
|
### 2. Basic Permissions
|
|
|
|
All rights granted under this License are granted for the term of
|
|
copyright on the Program, and are irrevocable provided the stated
|
|
conditions are met. This License explicitly affirms your unlimited
|
|
permission to run the unmodified Program. The output from running a
|
|
covered work is covered by this License only if the output, given its
|
|
content, constitutes a covered work. This License acknowledges your
|
|
rights of fair use or other equivalent, as provided by copyright law.
|
|
|
|
You may make, run and propagate covered works that you do not convey,
|
|
without conditions so long as your license otherwise remains in force.
|
|
You may convey covered works to others for the sole purpose of having
|
|
them make modifications exclusively for you, or provide you with
|
|
facilities for running those works, provided that you comply with the
|
|
terms of this License in conveying all material for which you do not
|
|
control copyright. Those thus making or running the covered works for
|
|
you must do so exclusively on your behalf, under your direction and
|
|
control, on terms that prohibit them from making any copies of your
|
|
copyrighted material outside their relationship with you.
|
|
|
|
Conveying under any other circumstances is permitted solely under the
|
|
conditions stated below. Sublicensing is not allowed; section 10 makes
|
|
it unnecessary.
|
|
|
|
### 3. Protecting Users' Legal Rights From Anti-Circumvention Law
|
|
|
|
No covered work shall be deemed part of an effective technological
|
|
measure under any applicable law fulfilling obligations under article
|
|
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
|
similar laws prohibiting or restricting circumvention of such
|
|
measures.
|
|
|
|
When you convey a covered work, you waive any legal power to forbid
|
|
circumvention of technological measures to the extent such
|
|
circumvention is effected by exercising rights under this License with
|
|
respect to the covered work, and you disclaim any intention to limit
|
|
operation or modification of the work as a means of enforcing, against
|
|
the work's users, your or third parties' legal rights to forbid
|
|
circumvention of technological measures.
|
|
|
|
### 4. Conveying Verbatim Copies
|
|
|
|
You may convey verbatim copies of the Program's source code as you
|
|
receive it, in any medium, provided that you conspicuously and
|
|
appropriately publish on each copy an appropriate copyright notice;
|
|
keep intact all notices stating that this License and any
|
|
non-permissive terms added in accord with section 7 apply to the code;
|
|
keep intact all notices of the absence of any warranty; and give all
|
|
recipients a copy of this License along with the Program.
|
|
|
|
You may charge any price or no price for each copy that you convey,
|
|
and you may offer support or warranty protection for a fee.
|
|
|
|
### 5. Conveying Modified Source Versions
|
|
|
|
You may convey a work based on the Program, or the modifications to
|
|
produce it from the Program, in the form of source code under the
|
|
terms of section 4, provided that you also meet all of these
|
|
conditions:
|
|
|
|
- a) The work must carry prominent notices stating that you modified
|
|
it, and giving a relevant date.
|
|
- b) The work must carry prominent notices stating that it is
|
|
released under this License and any conditions added under
|
|
section 7. This requirement modifies the requirement in section 4
|
|
to "keep intact all notices".
|
|
- c) You must license the entire work, as a whole, under this
|
|
License to anyone who comes into possession of a copy. This
|
|
License will therefore apply, along with any applicable section 7
|
|
additional terms, to the whole of the work, and all its parts,
|
|
regardless of how they are packaged. This License gives no
|
|
permission to license the work in any other way, but it does not
|
|
invalidate such permission if you have separately received it.
|
|
- d) If the work has interactive user interfaces, each must display
|
|
Appropriate Legal Notices; however, if the Program has interactive
|
|
interfaces that do not display Appropriate Legal Notices, your
|
|
work need not make them do so.
|
|
|
|
A compilation of a covered work with other separate and independent
|
|
works, which are not by their nature extensions of the covered work,
|
|
and which are not combined with it such as to form a larger program,
|
|
in or on a volume of a storage or distribution medium, is called an
|
|
"aggregate" if the compilation and its resulting copyright are not
|
|
used to limit the access or legal rights of the compilation's users
|
|
beyond what the individual works permit. Inclusion of a covered work
|
|
in an aggregate does not cause this License to apply to the other
|
|
parts of the aggregate.
|
|
|
|
### 6. Conveying Non-Source Forms
|
|
|
|
You may convey a covered work in object code form under the terms of
|
|
sections 4 and 5, provided that you also convey the machine-readable
|
|
Corresponding Source under the terms of this License, in one of these
|
|
ways:
|
|
|
|
- a) Convey the object code in, or embodied in, a physical product
|
|
(including a physical distribution medium), accompanied by the
|
|
Corresponding Source fixed on a durable physical medium
|
|
customarily used for software interchange.
|
|
- b) Convey the object code in, or embodied in, a physical product
|
|
(including a physical distribution medium), accompanied by a
|
|
written offer, valid for at least three years and valid for as
|
|
long as you offer spare parts or customer support for that product
|
|
model, to give anyone who possesses the object code either (1) a
|
|
copy of the Corresponding Source for all the software in the
|
|
product that is covered by this License, on a durable physical
|
|
medium customarily used for software interchange, for a price no
|
|
more than your reasonable cost of physically performing this
|
|
conveying of source, or (2) access to copy the Corresponding
|
|
Source from a network server at no charge.
|
|
- c) Convey individual copies of the object code with a copy of the
|
|
written offer to provide the Corresponding Source. This
|
|
alternative is allowed only occasionally and noncommercially, and
|
|
only if you received the object code with such an offer, in accord
|
|
with subsection 6b.
|
|
- d) Convey the object code by offering access from a designated
|
|
place (gratis or for a charge), and offer equivalent access to the
|
|
Corresponding Source in the same way through the same place at no
|
|
further charge. You need not require recipients to copy the
|
|
Corresponding Source along with the object code. If the place to
|
|
copy the object code is a network server, the Corresponding Source
|
|
may be on a different server (operated by you or a third party)
|
|
that supports equivalent copying facilities, provided you maintain
|
|
clear directions next to the object code saying where to find the
|
|
Corresponding Source. Regardless of what server hosts the
|
|
Corresponding Source, you remain obligated to ensure that it is
|
|
available for as long as needed to satisfy these requirements.
|
|
- e) Convey the object code using peer-to-peer transmission,
|
|
provided you inform other peers where the object code and
|
|
Corresponding Source of the work are being offered to the general
|
|
public at no charge under subsection 6d.
|
|
|
|
A separable portion of the object code, whose source code is excluded
|
|
from the Corresponding Source as a System Library, need not be
|
|
included in conveying the object code work.
|
|
|
|
A "User Product" is either (1) a "consumer product", which means any
|
|
tangible personal property which is normally used for personal,
|
|
family, or household purposes, or (2) anything designed or sold for
|
|
incorporation into a dwelling. In determining whether a product is a
|
|
consumer product, doubtful cases shall be resolved in favor of
|
|
coverage. For a particular product received by a particular user,
|
|
"normally used" refers to a typical or common use of that class of
|
|
product, regardless of the status of the particular user or of the way
|
|
in which the particular user actually uses, or expects or is expected
|
|
to use, the product. A product is a consumer product regardless of
|
|
whether the product has substantial commercial, industrial or
|
|
non-consumer uses, unless such uses represent the only significant
|
|
mode of use of the product.
|
|
|
|
"Installation Information" for a User Product means any methods,
|
|
procedures, authorization keys, or other information required to
|
|
install and execute modified versions of a covered work in that User
|
|
Product from a modified version of its Corresponding Source. The
|
|
information must suffice to ensure that the continued functioning of
|
|
the modified object code is in no case prevented or interfered with
|
|
solely because modification has been made.
|
|
|
|
If you convey an object code work under this section in, or with, or
|
|
specifically for use in, a User Product, and the conveying occurs as
|
|
part of a transaction in which the right of possession and use of
|