2437 lines
113 KiB
TeX
2437 lines
113 KiB
TeX
% license-texts.tex -*- LaTeX -*-
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% Tutorial Text for the Detailed Study and Analysis of GPL and LGPL course
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%
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% Copyright (C) 1989, 1991, 1999, 2002 Free Software Foundation, Inc.
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\part{Full Texts of the GNU GPL and Related Licenses}
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In this appendix, we include a full copy of GPLv2, GPLv3, LGPLv2.1,
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LGPLv3, and AGPLv3. These are the most commonly used licenses in the GPL
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family of licenses.
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\chapter{The GNU General Public License, version 2}
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\begin{center}
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{\parindent 0in
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Version 2, June 1991
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Copyright \copyright\ 1989, 1991 Free Software Foundation, Inc.
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\bigskip
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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\bigskip
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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}
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\end{center}
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\begin{center}
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{\bf\large Preamble}
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\end{center}
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The licenses for most software are designed to take away your freedom
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to share and change it. By contrast, the GNU General Public License is
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intended to guarantee your freedom to share and change Free
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Software---to make sure the software is free for all its users. This
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General Public License applies to most of the Free Software
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Foundation's software and to any other program whose authors commit to
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using it. (Some other Free Software Foundation software is covered by
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the GNU Library General Public License instead.) You can apply it to
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your programs, too.
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When we speak of Free Software, we are referring to freedom, not price.
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Our General Public Licenses are designed to make sure that you have the
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freedom to distribute copies of Free Software (and charge for this service
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if you wish), that you receive source code or can get it if you want it,
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that you can change the software or use pieces of it in new Free programs;
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and that you know you can do these things.
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To protect your rights, we need to make restrictions that forbid anyone to
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deny you these rights or to ask you to surrender the rights. These
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restrictions translate to certain responsibilities for you if you
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distribute copies of the software, or if you modify it.
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For example, if you distribute copies of such a program, whether gratis or
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for a fee, you must give the recipients all the rights that you have. You
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must make sure that they, too, receive or can get the source code. And
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you must show them these terms so they know their rights.
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We protect your rights with two steps: (1) copyright the software, and (2)
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offer you this license which gives you legal permission to copy,
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distribute and/or modify the software.
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Also, for each author's protection and ours, we want to make certain that
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everyone understands that there is no warranty for this Free Software. If
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the software is modified by someone else and passed on, we want its
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recipients to know that what they have is not the original, so that any
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problems introduced by others will not reflect on the original authors'
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reputations.
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Finally, any Free program is threatened constantly by software patents.
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We wish to avoid the danger that redistributors of a Free program will
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individually obtain patent licenses, in effect making the program
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proprietary. To prevent this, we have made it clear that any patent must
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be licensed for everyone's free use or not licensed at all.
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The precise terms and conditions for copying, distribution and
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modification follow.
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\begin{center}
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{\Large \sc Terms and Conditions For Copying, Distribution and
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Modification}
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\end{center}
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\begin{enumerate}
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\addtocounter{enumi}{-1}
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\item
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This License applies to any program or other work which contains a notice
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placed by the copyright holder saying it may be distributed under the
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terms of this General Public License. The ``Program,'' below, refers to
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any such program or work, and a ``work based on the Program'' means either
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the Program or any derivative work under copyright law: that is to say, a
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work containing the Program or a portion of it, either verbatim or with
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modifications and/or translated into another language. (Hereinafter,
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translation is included without limitation in the term ``modification.'')
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Each licensee is addressed as ``you.''
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Activities other than copying, distribution and modification are not
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covered by this License; they are outside its scope. The act of
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running the Program is not restricted, and the output from the Program
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is covered only if its contents constitute a work based on the
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Program (independent of having been made by running the Program).
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Whether that is true depends on what the Program does.
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\item You may copy and distribute verbatim copies of the Program's source
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code as you receive it, in any medium, provided that you conspicuously
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and appropriately publish on each copy an appropriate copyright notice
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and disclaimer of warranty; keep intact all the notices that refer to
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this License and to the absence of any warranty; and give any other
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recipients of the Program a copy of this License along with the Program.
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You may charge a fee for the physical act of transferring a copy, and you
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may at your option offer warranty protection in exchange for a fee.
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\item
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You may modify your copy or copies of the Program or any portion
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of it, thus forming a work based on the Program, and copy and
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distribute such modifications or work under the terms of Section 1
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above, provided that you also meet all of these conditions:
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\begin{enumerate}
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\item
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You must cause the modified files to carry prominent notices stating that
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you changed the files and the date of any change.
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\item
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You must cause any work that you distribute or publish, that in
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whole or in part contains or is derived from the Program or any
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part thereof, to be licensed as a whole at no charge to all third
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parties under the terms of this License.
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\item
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If the modified program normally reads commands interactively
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when run, you must cause it, when started running for such
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interactive use in the most ordinary way, to print or display an
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announcement including an appropriate copyright notice and a
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notice that there is no warranty (or else, saying that you provide
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a warranty) and that users may redistribute the program under
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these conditions, and telling the user how to view a copy of this
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License. (Exception: if the Program itself is interactive but
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does not normally print such an announcement, your work based on
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the Program is not required to print an announcement.)
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\end{enumerate}
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These requirements apply to the modified work as a whole. If
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identifiable sections of that work are not derived from the Program,
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and can be reasonably considered independent and separate works in
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themselves, then this License, and its terms, do not apply to those
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sections when you distribute them as separate works. But when you
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distribute the same sections as part of a whole which is a work based
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on the Program, the distribution of the whole must be on the terms of
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this License, whose permissions for other licensees extend to the
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entire whole, and thus to each and every part regardless of who wrote it.
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Thus, it is not the intent of this section to claim rights or contest
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your rights to work written entirely by you; rather, the intent is to
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exercise the right to control the distribution of derivative or
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collective works based on the Program.
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In addition, mere aggregation of another work not based on the Program
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with the Program (or with a work based on the Program) on a volume of
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a storage or distribution medium does not bring the other work under
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the scope of this License.
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\item
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You may copy and distribute the Program (or a work based on it,
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under Section 2) in object code or executable form under the terms of
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Sections 1 and 2 above provided that you also do one of the following:
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\begin{enumerate}
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\item
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Accompany it with the complete corresponding machine-readable
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source code, which must be distributed under the terms of Sections
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1 and 2 above on a medium customarily used for software interchange; or,
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\item
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Accompany it with a written offer, valid for at least three
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years, to give any third party, for a charge no more than your
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cost of physically performing source distribution, a complete
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machine-readable copy of the corresponding source code, to be
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distributed under the terms of Sections 1 and 2 above on a medium
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customarily used for software interchange; or,
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\item
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Accompany it with the information you received as to the offer
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to distribute corresponding source code. (This alternative is
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allowed only for noncommercial distribution and only if you
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received the program in object code or executable form with such
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an offer, in accord with Subsection b above.)
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\end{enumerate}
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The source code for a work means the preferred form of the work for
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making modifications to it. For an executable work, complete source
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code means all the source code for all modules it contains, plus any
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associated interface definition files, plus the scripts used to
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control compilation and installation of the executable. However, as a
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special exception, the source code distributed need not include
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anything that is normally distributed (in either source or binary
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form) with the major components (compiler, kernel, and so on) of the
|
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operating system on which the executable runs, unless that component
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itself accompanies the executable.
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If distribution of executable or object code is made by offering
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access to copy from a designated place, then offering equivalent
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access to copy the source code from the same place counts as
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distribution of the source code, even though third parties are not
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compelled to copy the source along with the object code.
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\item
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You may not copy, modify, sublicense, or distribute the Program
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except as expressly provided under this License. Any attempt
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otherwise to copy, modify, sublicense or distribute the Program is
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void, and will automatically terminate your rights under this License.
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However, parties who have received copies, or rights, from you under
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this License will not have their licenses terminated so long as such
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parties remain in full compliance.
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\item
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You are not required to accept this License, since you have not
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signed it. However, nothing else grants you permission to modify or
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distribute the Program or its derivative works. These actions are
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prohibited by law if you do not accept this License. Therefore, by
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modifying or distributing the Program (or any work based on the
|
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Program), you indicate your acceptance of this License to do so, and
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all its terms and conditions for copying, distributing or modifying
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the Program or works based on it.
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\item
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Each time you redistribute the Program (or any work based on the
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Program), the recipient automatically receives a license from the
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original licensor to copy, distribute or modify the Program subject to
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these terms and conditions. You may not impose any further
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restrictions on the recipients' exercise of the rights granted herein.
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You are not responsible for enforcing compliance by third parties to
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this License.
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\item
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If, as a consequence of a court judgment or allegation of patent
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infringement or for any other reason (not limited to patent issues),
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conditions are imposed on you (whether by court order, agreement or
|
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otherwise) that contradict the conditions of this License, they do not
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excuse you from the conditions of this License. If you cannot
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distribute so as to satisfy simultaneously your obligations under this
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License and any other pertinent obligations, then as a consequence you
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may not distribute the Program at all. For example, if a patent
|
|
license would not permit royalty-free redistribution of the Program by
|
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all those who receive copies directly or indirectly through you, then
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the only way you could satisfy both it and this License would be to
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refrain entirely from distribution of the Program.
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If any portion of this section is held invalid or unenforceable under
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any particular circumstance, the balance of the section is intended to
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apply and the section as a whole is intended to apply in other
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circumstances.
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It is not the purpose of this section to induce you to infringe any
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patents or other property right claims or to contest validity of any
|
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such claims; this section has the sole purpose of protecting the
|
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integrity of the Free Software distribution system, which is
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implemented by public license practices. Many people have made
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generous contributions to the wide range of software distributed
|
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through that system in reliance on consistent application of that
|
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system; it is up to the author/donor to decide if he or she is willing
|
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to distribute software through any other system and a licensee cannot
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impose that choice.
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This section is intended to make thoroughly clear what is believed to
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be a consequence of the rest of this License.
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\item
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If the distribution and/or use of the Program is restricted in
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certain countries either by patents or by copyrighted interfaces, the
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original copyright holder who places the Program under this License
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may add an explicit geographical distribution limitation excluding
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those countries, so that distribution is permitted only in or among
|
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countries not thus excluded. In such case, this License incorporates
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the limitation as if written in the body of this License.
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\item
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The Free Software Foundation may publish revised and/or new versions
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of the General Public License from time to time. Such new versions will
|
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be similar in spirit to the present version, but may differ in detail to
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address new problems or concerns.
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Each version is given a distinguishing version number. If the Program
|
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specifies a version number of this License which applies to it and ``any
|
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later version,'' you have the option of following the terms and conditions
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either of that version or of any later version published by the Free
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Software Foundation. If the Program does not specify a version number of
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this License, you may choose any version ever published by the Free Software
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Foundation.
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\item
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If you wish to incorporate parts of the Program into other free
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programs whose distribution conditions are different, write to the author
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to ask for permission. For software which is copyrighted by the Free
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Software Foundation, write to the Free Software Foundation; we sometimes
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make exceptions for this. Our decision will be guided by the two goals
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of preserving the free status of all derivatives of our Free Software and
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of promoting the sharing and reuse of software generally.
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\begin{center}
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{\Large\sc
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No Warranty
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}
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\end{center}
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\item
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{\sc Because the program is licensed free of charge, there is no warranty
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for the program, to the extent permitted by applicable law. Except when
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otherwise stated in writing the copyright holders and/or other parties
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provide the program ``as is'' without warranty of any kind, either expressed
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or implied, including, but not limited to, the implied warranties of
|
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merchantability and fitness for a particular purpose. The entire risk as
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to the quality and performance of the program is with you. Should the
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program prove defective, you assume the cost of all necessary servicing,
|
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repair or correction.}
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\item {\sc In no event unless required by applicable law or agreed to
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in writing will any copyright holder, or any other party who may
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modify and/or redistribute the program as permitted above, be
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liable to you for damages, including any general, special,
|
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incidental or consequential damages arising out of the use or
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inability to use the program (including but not limited to loss of
|
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data or data being rendered inaccurate or losses sustained by you
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or third parties or a failure of the program to operate with any
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other programs), even if such holder or other party has been
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advised of the possibility of such damages.}
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\end{enumerate}
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\begin{center}
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{\Large\sc End of Terms and Conditions}
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\end{center}
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\vfill
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\pagebreak[4]
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\section*{Appendix: How to Apply These Terms to Your New Programs}
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If you develop a new program, and you want it to be of the greatest
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possible use to the public, the best way to achieve this is to make it
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Free Software which everyone can redistribute and change under these
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terms.
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To do so, attach the following notices to the program. It is safest to
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attach them to the start of each source file to most effectively convey
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the exclusion of warranty; and each file should have at least the
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``copyright'' line and a pointer to where the full notice is found.
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\begin{quote}
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one line to give the program's name and a brief idea of what it does. \\
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Copyright (C) yyyy name of author \\
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This program is Free Software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
|
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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\end{quote}
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Also add information on how to contact you by electronic and paper mail.
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If the program is interactive, make it output a short notice like this
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when it starts in an interactive mode:
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\begin{quote}
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Gnomovision version 69, Copyright (C) yyyy name of author \\
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Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. \\
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This is Free Software, and you are welcome to redistribute it
|
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under certain conditions; type `show c' for details.
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\end{quote}
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The hypothetical commands {\tt show w} and {\tt show c} should show the
|
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appropriate parts of the General Public License. Of course, the commands
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you use may be called something other than {\tt show w} and {\tt show c};
|
|
they could even be mouse-clicks or menu items---whatever suits your
|
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program.
|
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You should also get your employer (if you work as a programmer) or your
|
|
school, if any, to sign a ``copyright disclaimer'' for the program, if
|
|
necessary. Here is a sample; alter the names:
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\begin{quote}
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program \\
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`Gnomovision' (which makes passes at compilers) written by James Hacker. \\
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signature of Ty Coon, 1 April 1989 \\
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Ty Coon, President of Vice
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\end{quote}
|
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|
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This General Public License does not permit incorporating your program
|
|
into proprietary programs. If your program is a subroutine library, you
|
|
may consider it more useful to permit linking proprietary applications
|
|
with the library. If this is what you want to do, use the GNU Library
|
|
General Public License instead of this License.
|
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\chapter{The GNU Lesser General Public License, version 2.1}
|
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|
\begin{center}
|
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{\parindent 0in
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|
|
Version 2.1, February 1999
|
|
|
|
Copyright \copyright\ 1991, 1999 Free Software Foundation, Inc.
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\bigskip
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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|
\bigskip
|
|
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|
Everyone is permitted to copy and distribute verbatim copies
|
|
of this license document, but changing it is not allowed.
|
|
|
|
\bigskip
|
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|
[This is the first released version of the Lesser GPL. It also counts
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|
as the successor of the GNU Library Public License version 2, hence
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the version number 2.1.]
|
|
}
|
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|
|
\end{center}
|
|
|
|
\begin{center}
|
|
{\bf\large Preamble}
|
|
\end{center}
|
|
|
|
The licenses for most software are designed to take away your freedom to
|
|
share and change it. By contrast, the GNU General Public Licenses are
|
|
intended to guarantee your freedom to share and change Free Software---to
|
|
make sure the software is free for all its users.
|
|
|
|
This license, the Lesser General Public License, applies to some specially
|
|
designated software packages---typically libraries---of the Free Software
|
|
Foundation and other authors who decide to use it. You can use it too,
|
|
but we suggest you first think carefully about whether this license or the
|
|
ordinary General Public License is the better strategy to use in any
|
|
particular case, based on the explanations below.
|
|
|
|
When we speak of Free Software, we are referring to freedom of use, 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
|
|
this service if you wish); that you receive source code or can get it if
|
|
you want it; that you can change the software and use pieces of it in new
|
|
Free programs; and that you are informed that you can do these things.
|
|
|
|
To protect your rights, we need to make restrictions that forbid
|
|
distributors to deny you these rights or to ask you to surrender these
|
|
rights. These restrictions translate to certain responsibilities for you
|
|
if you distribute copies of the library or if you modify it.
|
|
|
|
For example, if you distribute copies of the library, whether gratis or
|
|
for a fee, you must give the recipients all the rights that we gave you.
|
|
You must make sure that they, too, receive or can get the source code. If
|
|
you link other code with the library, you must provide complete object
|
|
files to the recipients, so that they can relink them with the library
|
|
after making changes to the library and recompiling it. And you must show
|
|
them these terms so they know their rights.
|
|
|
|
We protect your rights with a two-step method: (1) we copyright the
|
|
library, and (2) we offer you this license, which gives you legal
|
|
permission to copy, distribute and/or modify the library.
|
|
|
|
To protect each distributor, we want to make it very clear that there is
|
|
no warranty for the Free library. Also, if the library is modified by
|
|
someone else and passed on, the recipients should know that what they have
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Finally, software patents pose a constant threat to the existence of any
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Most GNU software, including some libraries, is covered by the ordinary
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When a program is linked with a library, whether statically or using a
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License therefore permits such linking only if the entire combination fits
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We call this license the ``Lesser'' General Public License because it does
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However, the Lesser license provides advantages in certain special
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For example, on rare occasions, there may be a special need to encourage
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In other cases, permission to use a particular library in non-Free
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as well as its variant, the GNU/Linux operating system.
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Although the Lesser General Public License is Less protective of the
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users' freedom, it does ensure that the user of a program that is linked
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with the library has the freedom and the wherewithal to run that program
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using a modified version of the library.
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The precise terms and conditions for copying, distribution and
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\begin{center}
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{\Large \sc GNU Lesser General Public License} \\
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{\Large \sc Terms and Conditions For Copying, Distribution and
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Modification}
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\end{center}
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\begin{enumerate}
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\addtocounter{enumi}{-1}
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\item
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This License Agreement applies to any software library or other program
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A ``library'' means a collection of software functions and/or data
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prepared so as to be conveniently linked with application programs (which
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The ``library,'' below, refers to any such software library or work which
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``Source code'' for a work means the preferred form of the work for making
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Activities other than copying, distribution and modification are not
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Whether that is true depends on what the library does and what the program
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\item
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You may copy and distribute verbatim copies of the library's complete
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You may charge a fee for the physical act of transferring a copy,
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\item
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You may modify your copy or copies of the library or any portion of it,
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\begin{enumerate}
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The modified work must itself be a software library.
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You must cause the files modified to carry prominent notices stating
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You must cause the whole of the work to be licensed at no charge to
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\item
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If a facility in the modified library refers to a function or a table
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of data to be supplied by an application program that uses the
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facility, other than as an argument passed when the facility is
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invoked, then you must make a good faith effort to ensure that, in the
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event an application does not supply such function or table, the
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facility still operates, and performs whatever part of its purpose
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remains meaningful.
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(For example, a function in a library to compute square roots has a
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purpose that is entirely well-defined independent of the application.
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Therefore, Subsection 2d requires that any application-supplied function
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or table used by this function must be optional: if the application does
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\end{enumerate}
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These requirements apply to the modified work as a whole. If identifiable
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sections of that work are not derived from the library, and can be
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reasonably considered independent and separate works in themselves, then
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this License, and its terms, do not apply to those sections when you
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distribute them as separate works. But when you distribute the same
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permissions for other licensees extend to the entire whole, and thus to
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each and every part regardless of who wrote it.
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Thus, it is not the intent of this section to claim rights or contest your
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the right to control the distribution of derivative or collective works
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based on the library.
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In addition, mere aggregation of another work not based on the library
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storage or distribution medium does not bring the other work under the
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scope of this License.
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\item
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You may opt to apply the terms of the ordinary GNU General Public License
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instead of this License to a given copy of the library. To do this, you
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must alter all the notices that refer to this License, so that they refer
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License. (If a newer version than version 2 of the ordinary GNU General
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Once this change is made in a given copy, it is irreversible for that
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copies and derivative works made from that copy.
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This option is useful when you wish to copy part of the code of the
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\item
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You may copy and distribute the library (or a portion or derivative of it,
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under Section 2) in object code or executable form under the terms of
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Sections 1 and 2 above provided that you accompany it with the complete
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under the terms of Sections 1 and 2 above on a medium customarily used for
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software interchange.
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If distribution of object code is made by offering access to copy from a
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designated place, then offering equivalent access to copy the source code
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with the object code.
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\item
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A program that contains no derivative of any portion of the library, but
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is designed to work with the library by being compiled or linked with it,
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is called a ``work that uses the library.'' Such a work, in isolation, is
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scope of this License.
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However, linking a ``work that uses the library'' with the library creates
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an executable that is a derivative of the library (because it contains
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portions of the library), rather than a ``work that uses the library.''
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The executable is therefore covered by this License. Section 6 states
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terms for distribution of such executables.
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When a ``work that uses the library'' uses material from a header file
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that is part of the library, the object code for the work may be a
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derivative work of the library even though the source code is not.
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Whether this is true is especially significant if the work can be linked
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without the library, or if the work is itself a library. The threshold
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for this to be true is not precisely defined by law.
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If such an object file uses only numerical parameters, data structure
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layouts and accessors, and small macros and small inline functions (ten
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regardless of whether it is legally a derivative work. (Executables
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Otherwise, if the work is a derivative of the library, you may distribute
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executables containing that work also fall under Section 6, whether or not
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they are linked directly with the library itself.
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\item
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As an exception to the Sections above, you may also combine or link a
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``work that uses the library'' with the library to produce a work
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containing portions of the library, and distribute that work under terms
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for the customer's own use and reverse engineering for debugging such
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modifications.
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You must give prominent notice with each copy of the work that the library
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is used in it and that the library and its use are covered by this
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License. You must supply a copy of this License. If the work during
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execution displays copyright notices, you must include the copyright
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notice for the library among them, as well as a reference directing the
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user to the copy of this License. Also, you must do one of these things:
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\begin{enumerate}
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\item
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Accompany the work with the complete corresponding machine-readable
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source code for the library including whatever changes were used in
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the work (which must be distributed under Sections 1 and 2 above);
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and, if the work is an executable linked with the library, with the
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complete machine-readable ``work that uses the library,'' as object
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then relink to produce a modified executable containing the modified
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library. (It is understood that the user who changes the contents of
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definitions files in the library will not necessarily be able to
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recompile the application to use the modified definitions.)
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\item
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Use a suitable shared library mechanism for linking with the library.
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A suitable mechanism is one that (1) uses at run time a copy of the
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library already present on the user's computer system, rather than
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copying library functions into the executable, and (2) will operate
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properly with a modified version of the library, if the user installs
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one, as long as the modified version is interface-compatible with the
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version that the work was made with.
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\item
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Accompany the work with a written offer, valid for at least three
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years, to give the same user the materials specified in Subsection 6a,
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above, for a charge no more than the cost of performing this
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distribution.
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\item
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If distribution of the work is made by offering access to copy from a
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designated place, offer equivalent access to copy the above specified
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materials from the same place.
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\item
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Verify that the user has already received a copy of these materials or
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that you have already sent this user a copy.
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\end{enumerate}
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For an executable, the required form of the ``work that uses the library''
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must include any data and utility programs needed for reproducing the
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executable from it. However, as a special exception, the materials to be
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distributed need not include anything that is normally distributed (in
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either source or binary form) with the major components (compiler, kernel,
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and so on) of the operating system on which the executable runs, unless
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that component itself accompanies the executable.
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It may happen that this requirement contradicts the license restrictions
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of other proprietary libraries that do not normally accompany the
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operating system. Such a contradiction means you cannot use both them and
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the library together in an executable that you distribute.
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\item
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You may place library facilities that are a work based on the library
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side-by-side in a single library together with other library facilities
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not covered by this License, and distribute such a combined library,
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provided that the separate distribution of the work based on the library
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and of the other library facilities is otherwise permitted, and provided
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that you do these two things:
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|
\begin{enumerate}
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|
|
|
\item
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|
|
Accompany the combined library with a copy of the same work based on
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the library, uncombined with any other library facilities. This must
|
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be distributed under the terms of the Sections above.
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|
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\item
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Give prominent notice with the combined library of the fact that part
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of it is a work based on the library, and explaining where to find
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the accompanying uncombined form of the same work.
|
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\end{enumerate}
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|
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\item
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|
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You may not copy, modify, sublicense, link with, or distribute the
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library except as expressly provided under this License. Any attempt
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otherwise to copy, modify, sublicense, link with, or distribute the
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library is void, and will automatically terminate your rights under this
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License. However, parties who have received copies, or rights, from you
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under this License will not have their licenses terminated so long as
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such parties remain in full compliance.
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\item
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You are not required to accept this License, since you have not signed
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it. However, nothing else grants you permission to modify or distribute
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the library or its derivative works. These actions are prohibited by
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law if you do not accept this License. Therefore, by modifying or
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distributing the library (or any work based on the library), you
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indicate your acceptance of this License to do so, and all its terms and
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conditions for copying, distributing or modifying the library or works
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based on it.
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\item
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Each time you redistribute the library (or any work based on the
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library), the recipient automatically receives a license from the
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original licensor to copy, distribute, link with or modify the library
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subject to these terms and conditions. You may not impose any further
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restrictions on the recipients' exercise of the rights granted herein.
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You are not responsible for enforcing compliance by third parties with
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this License.
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\item
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|
|
If, as a consequence of a court judgment or allegation of patent
|
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infringement or for any other reason (not limited to patent issues),
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conditions are imposed on you (whether by court order, agreement or
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otherwise) that contradict the conditions of this License, they do not
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excuse you from the conditions of this License. If you cannot
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distribute so as to satisfy simultaneously your obligations under this
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License and any other pertinent obligations, then as a consequence you
|
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may not distribute the library at all. For example, if a patent license
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would not permit royalty-free redistribution of the library by all those
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who receive copies directly or indirectly through you, then the only way
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you could satisfy both it and this License would be to refrain entirely
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from distribution of the library.
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|
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If any portion of this section is held invalid or unenforceable under
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any particular circumstance, the balance of the section is intended to
|
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apply, and the section as a whole is intended to apply in other
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circumstances.
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|
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It is not the purpose of this section to induce you to infringe any
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patents or other property right claims or to contest validity of any
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such claims; this section has the sole purpose of protecting the
|
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integrity of the Free Software distribution system which is implemented
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by public license practices. Many people have made generous
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contributions to the wide range of software distributed through that
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system in reliance on consistent application of that system; it is up to
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the author/donor to decide if he or she is willing to distribute
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software through any other system and a licensee cannot impose that
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choice.
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|
|
This section is intended to make thoroughly clear what is believed to be
|
|
a consequence of the rest of this License.
|
|
|
|
|
|
% \pagebreak[4]
|
|
|
|
|
|
\item
|
|
|
|
If the distribution and/or use of the library is restricted in certain
|
|
countries either by patents or by copyrighted interfaces, the original
|
|
copyright holder who places the library under this License may add an
|
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explicit geographical distribution limitation excluding those countries,
|
|
so that distribution is permitted only in or among countries not thus
|
|
excluded. In such case, this License incorporates the limitation as if
|
|
written in the body of this License.
|
|
|
|
\item
|
|
|
|
The Free Software Foundation may publish revised and/or new versions of
|
|
the Lesser General Public License from time to time. Such new versions
|
|
will be similar in spirit to the present version, but may differ in
|
|
detail to address new problems or concerns.
|
|
|
|
Each version is given a distinguishing version number. If the library
|
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specifies a version number of this License which applies to it and ``any
|
|
later version,'' you have the option of following the terms and
|
|
conditions either of that version or of any later version published by
|
|
the Free Software Foundation. If the library does not specify a license
|
|
version number, you may choose any version ever published by the Free
|
|
Software Foundation.
|
|
|
|
|
|
\item
|
|
|
|
|
|
If you wish to incorporate parts of the library into other Free programs
|
|
whose distribution conditions are incompatible with these, write to the
|
|
author to ask for permission. For software which is copyrighted by the
|
|
Free Software Foundation, write to the Free Software Foundation; we
|
|
sometimes make exceptions for this. Our decision will be guided by the
|
|
two goals of preserving the Free status of all derivatives of our Free
|
|
software and of promoting the sharing and reuse of software generally.
|
|
|
|
|
|
\begin{center}
|
|
{\Large\sc
|
|
No Warranty
|
|
}
|
|
\end{center}
|
|
|
|
\item
|
|
|
|
{\sc Because the library is licensed free of charge, there is no
|
|
warranty for the library, to the extent permitted by applicable law.
|
|
Except when otherwise stated in writing the copyright holders and/or
|
|
other parties provide the library ``as is'' without warranty of any
|
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kind, either expressed or implied, including, but not limited to, the
|
|
implied warranties of merchantability and fitness for a particular
|
|
purpose. The entire risk as to the quality and performance of the
|
|
library is with you. should the library prove defective, you assume
|
|
the cost of all necessary servicing, repair or correction.}
|
|
|
|
% \pagebreak[4]
|
|
|
|
\item
|
|
|
|
{\sc In no event unless required by applicable law or agreed to in writing
|
|
will any copyright holder, or any other party who may modify and/or
|
|
redistribute the library as permitted above, be liable to you for
|
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damages, including any general, special, incidental or consequential
|
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damages arising out of the use or inability to use the library
|
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(including but not limited to loss of data or data being rendered
|
|
inaccurate or losses sustained by you or third parties or a failure of
|
|
the library to operate with any other software), even if such holder or
|
|
other party has been advised of the possibility of such damages.}
|
|
|
|
\end{enumerate}
|
|
|
|
\begin{center}
|
|
{\Large\sc End of Terms and Conditions}
|
|
\end{center}
|
|
\vfill
|
|
|
|
\pagebreak[4]
|
|
|
|
\section*{How to Apply These Terms to Your New Libraries}
|
|
|
|
If you develop a new library, and you want it to be of the greatest
|
|
possible use to the public, we recommend making it Free Software that
|
|
everyone can redistribute and change. You can do so by permitting
|
|
redistribution under these terms (or, alternatively, under the terms of
|
|
the ordinary General Public License).
|
|
|
|
To apply these terms, attach the following notices to the library. It is
|
|
safest to attach them to the start of each source file to most effectively
|
|
convey the exclusion of warranty; and each file should have at least the
|
|
``copyright'' line and a pointer to where the full notice is found.
|
|
|
|
\begin{quote}
|
|
one line to give the library's name and a brief idea of what it does. \\
|
|
Copyright (C) year name of author \\
|
|
|
|
This library is Free Software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or (at
|
|
your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this library; if not, write to the Free Software Foundation,
|
|
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
\end{quote}
|
|
|
|
Also add information on how to contact you by electronic and paper mail.
|
|
|
|
You should also get your employer (if you work as a programmer) or your
|
|
school, if any, to sign a ``copyright disclaimer'' for the library, if
|
|
necessary. Here is a sample; alter the names:
|
|
|
|
\begin{quote}
|
|
Yoyodyne, Inc., hereby disclaims all copyright interest in the program \\
|
|
`Gnomovision' (which makes passes at compilers) written by James Hacker. \\
|
|
|
|
signature of Ty Coon, 1 April 1990 \\
|
|
Ty Coon, President of Vice
|
|
\end{quote}
|
|
|
|
\chapter{The GNU General Public License, version 3}
|
|
\begin{center}
|
|
{\parindent 0in
|
|
|
|
Version 3, 29 June 2007
|
|
|
|
Copyright \copyright\ 2007 Free Software Foundation, Inc. \texttt{http://fsf.org/}
|
|
|
|
\bigskip
|
|
Everyone is permitted to copy and distribute verbatim copies of this
|
|
|
|
license document, but changing it is not allowed.}
|
|
|
|
\end{center}
|
|
|
|
\begin{center}
|
|
{\bf\large Preamble}
|
|
\end{center}
|
|
|
|
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.
|
|
|
|
\begin{center}
|
|
{\Large \sc Terms and Conditions}
|
|
\end{center}
|
|
|
|
|
|
\begin{enumerate}
|
|
|
|
\addtocounter{enumi}{-1}
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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:
|
|
\begin{enumerate}
|
|
\item The work must carry prominent notices stating that you modified
|
|
it, and giving a relevant date.
|
|
|
|
\item 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''.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
\end{enumerate}
|
|
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.
|
|
|
|
\item 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:
|
|
\begin{enumerate}
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
\end{enumerate}
|
|
|
|
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 the
|
|
User Product is transferred to the recipient in perpetuity or for a
|
|
fixed term (regardless of how the transaction is characterized), the
|
|
Corresponding Source conveyed under this section must be accompanied
|
|
by the Installation Information. But this requirement does not apply
|
|
if neither you nor any third party retains the ability to install
|
|
modified object code on the User Product (for example, the work has
|
|
been installed in ROM).
|
|
|
|
The requirement to provide Installation Information does not include a
|
|
requirement to continue to provide support service, warranty, or updates
|
|
for a work that has been modified or installed by the recipient, or for
|
|
the User Product in which it has been modified or installed. Access to a
|
|
network may be denied when the modification itself materially and
|
|
adversely affects the operation of the network or violates the rules and
|
|
protocols for communication across the network.
|
|
|
|
Corresponding Source conveyed, and Installation Information provided,
|
|
in accord with this section must be in a format that is publicly
|
|
documented (and with an implementation available to the public in
|
|
source code form), and must require no special password or key for
|
|
unpacking, reading or copying.
|
|
|
|
\item Additional Terms.
|
|
|
|
``Additional permissions'' are terms that supplement the terms of this
|
|
License by making exceptions from one or more of its conditions.
|
|
Additional permissions that are applicable to the entire Program shall
|
|
be treated as though they were included in this License, to the extent
|
|
that they are valid under applicable law. If additional permissions
|
|
apply only to part of the Program, that part may be used separately
|
|
under those permissions, but the entire Program remains governed by
|
|
this License without regard to the additional permissions.
|
|
|
|
When you convey a copy of a covered work, you may at your option
|
|
remove any additional permissions from that copy, or from any part of
|
|
it. (Additional permissions may be written to require their own
|
|
removal in certain cases when you modify the work.) You may place
|
|
additional permissions on material, added by you to a covered work,
|
|
for which you have or can give appropriate copyright permission.
|
|
|
|
Notwithstanding any other provision of this License, for material you
|
|
add to a covered work, you may (if authorized by the copyright holders of
|
|
that material) supplement the terms of this License with terms:
|
|
\begin{enumerate}
|
|
\item Disclaiming warranty or limiting liability differently from the
|
|
terms of sections 15 and 16 of this License; or
|
|
|
|
\item Requiring preservation of specified reasonable legal notices or
|
|
author attributions in that material or in the Appropriate Legal
|
|
Notices displayed by works containing it; or
|
|
|
|
\item Prohibiting misrepresentation of the origin of that material, or
|
|
requiring that modified versions of such material be marked in
|
|
reasonable ways as different from the original version; or
|
|
|
|
\item Limiting the use for publicity purposes of names of licensors or
|
|
authors of the material; or
|
|
|
|
\item Declining to grant rights under trademark law for use of some
|
|
trade names, trademarks, or service marks; or
|
|
|
|
\item Requiring indemnification of licensors and authors of that
|
|
material by anyone who conveys the material (or modified versions of
|
|
it) with contractual assumptions of liability to the recipient, for
|
|
any liability that these contractual assumptions directly impose on
|
|
those licensors and authors.
|
|
\end{enumerate}
|
|
|
|
All other non-permissive additional terms are considered ``further
|
|
restrictions'' within the meaning of section 10. If the Program as you
|
|
received it, or any part of it, contains a notice stating that it is
|
|
governed by this License along with a term that is a further
|
|
restriction, you may remove that term. If a license document contains
|
|
a further restriction but permits relicensing or conveying under this
|
|
License, you may add to a covered work material governed by the terms
|
|
of that license document, provided that the further restriction does
|
|
not survive such relicensing or conveying.
|
|
|
|
If you add terms to a covered work in accord with this section, you
|
|
must place, in the relevant source files, a statement of the
|
|
additional terms that apply to those files, or a notice indicating
|
|
where to find the applicable terms.
|
|
|
|
Additional terms, permissive or non-permissive, may be stated in the
|
|
form of a separately written license, or stated as exceptions;
|
|
the above requirements apply either way.
|
|
|
|
\item Termination.
|
|
|
|
You may not propagate or modify a covered work except as expressly
|
|
provided under this License. Any attempt otherwise to propagate or
|
|
modify it is void, and will automatically terminate your rights under
|
|
this License (including any patent licenses granted under the third
|
|
paragraph of section 11).
|
|
|
|
However, if you cease all violation of this License, then your
|
|
license from a particular copyright holder is reinstated (a)
|
|
provisionally, unless and until the copyright holder explicitly and
|
|
finally terminates your license, and (b) permanently, if the copyright
|
|
holder fails to notify you of the violation by some reasonable means
|
|
prior to 60 days after the cessation.
|
|
|
|
Moreover, your license from a particular copyright holder is
|
|
reinstated permanently if the copyright holder notifies you of the
|
|
violation by some reasonable means, this is the first time you have
|
|
received notice of violation of this License (for any work) from that
|
|
copyright holder, and you cure the violation prior to 30 days after
|
|
your receipt of the notice.
|
|
|
|
Termination of your rights under this section does not terminate the
|
|
licenses of parties who have received copies or rights from you under
|
|
this License. If your rights have been terminated and not permanently
|
|
reinstated, you do not qualify to receive new licenses for the same
|
|
material under section 10.
|
|
|
|
\item Acceptance Not Required for Having Copies.
|
|
|
|
You are not required to accept this License in order to receive or
|
|
run a copy of the Program. Ancillary propagation of a covered work
|
|
occurring solely as a consequence of using peer-to-peer transmission
|
|
to receive a copy likewise does not require acceptance. However,
|
|
nothing other than this License grants you permission to propagate or
|
|
modify any covered work. These actions infringe copyright if you do
|
|
not accept this License. Therefore, by modifying or propagating a
|
|
covered work, you indicate your acceptance of this License to do so.
|
|
|
|
\item Automatic Licensing of Downstream Recipients.
|
|
|
|
Each time you convey a covered work, the recipient automatically
|
|
receives a license from the original licensors, to run, modify and
|
|
propagate that work, subject to this License. You are not responsible
|
|
for enforcing compliance by third parties with this License.
|
|
|
|
An ``entity transaction'' is a transaction transferring control of an
|
|
organization, or substantially all assets of one, or subdividing an
|
|
organization, or merging organizations. If propagation of a covered
|
|
work results from an entity transaction, each party to that
|
|
transaction who receives a copy of the work also receives whatever
|
|
licenses to the work the party's predecessor in interest had or could
|
|
give under the previous paragraph, plus a right to possession of the
|
|
Corresponding Source of the work from the predecessor in interest, if
|
|
the predecessor has it or can get it with reasonable efforts.
|
|
|
|
You may not impose any further restrictions on the exercise of the
|
|
rights granted or affirmed under this License. For example, you may
|
|
not impose a license fee, royalty, or other charge for exercise of
|
|
rights granted under this License, and you may not initiate litigation
|
|
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
|
any patent claim is infringed by making, using, selling, offering for
|
|
sale, or importing the Program or any portion of it.
|
|
|
|
\item Patents.
|
|
|
|
A ``contributor'' is a copyright holder who authorizes use under this
|
|
License of the Program or a work on which the Program is based. The
|
|
work thus licensed is called the contributor's ``contributor version''.
|
|
|
|
A contributor's ``essential patent claims'' are all patent claims
|
|
owned or controlled by the contributor, whether already acquired or
|
|
hereafter acquired, that would be infringed by some manner, permitted
|
|
by this License, of making, using, or selling its contributor version,
|
|
but do not include claims that would be infringed only as a
|
|
consequence of further modification of the contributor version. For
|
|
purposes of this definition, ``control'' includes the right to grant
|
|
patent sublicenses in a manner consistent with the requirements of
|
|
this License.
|
|
|
|
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
|
patent license under the contributor's essential patent claims, to
|
|
make, use, sell, offer for sale, import and otherwise run, modify and
|
|
propagate the contents of its contributor version.
|
|
|
|
In the following three paragraphs, a ``patent license'' is any express
|
|
agreement or commitment, however denominated, not to enforce a patent
|
|
(such as an express permission to practice a patent or covenant not to
|
|
sue for patent infringement). To ``grant'' such a patent license to a
|
|
party means to make such an agreement or commitment not to enforce a
|
|
patent against the party.
|
|
|
|
If you convey a covered work, knowingly relying on a patent license,
|
|
and the Corresponding Source of the work is not available for anyone
|
|
to copy, free of charge and under the terms of this License, through a
|
|
publicly available network server or other readily accessible means,
|
|
then you must either (1) cause the Corresponding Source to be so
|
|
available, or (2) arrange to deprive yourself of the benefit of the
|
|
patent license for this particular work, or (3) arrange, in a manner
|
|
consistent with the requirements of this License, to extend the patent
|
|
license to downstream recipients. ``Knowingly relying'' means you have
|
|
actual knowledge that, but for the patent license, your conveying the
|
|
covered work in a country, or your recipient's use of the covered work
|
|
in a country, would infringe one or more identifiable patents in that
|
|
country that you have reason to believe are valid.
|
|
|
|
If, pursuant to or in connection with a single transaction or
|
|
arrangement, you convey, or propagate by procuring conveyance of, a
|
|
covered work, and grant a patent license to some of the parties
|
|
receiving the covered work authorizing them to use, propagate, modify
|
|
or convey a specific copy of the covered work, then the patent license
|
|
you grant is automatically extended to all recipients of the covered
|
|
work and works based on it.
|
|
|
|
A patent license is ``discriminatory'' if it does not include within
|
|
the scope of its coverage, prohibits the exercise of, or is
|
|
conditioned on the non-exercise of one or more of the rights that are
|
|
specifically granted under this License. You may not convey a covered
|
|
work if you are a party to an arrangement with a third party that is
|
|
in the business of distributing software, under which you make payment
|
|
to the third party based on the extent of your activity of conveying
|
|
the work, and under which the third party grants, to any of the
|
|
parties who would receive the covered work from you, a discriminatory
|
|
patent license (a) in connection with copies of the covered work
|
|
conveyed by you (or copies made from those copies), or (b) primarily
|
|
for and in connection with specific products or compilations that
|
|
contain the covered work, unless you entered into that arrangement,
|
|
or that patent license was granted, prior to 28 March 2007.
|
|
|
|
Nothing in this License shall be construed as excluding or limiting
|
|
any implied license or other defenses to infringement that may
|
|
otherwise be available to you under applicable patent law.
|
|
|
|
\item No Surrender of Others' Freedom.
|
|
|
|
If conditions are imposed on you (whether by court order, agreement or
|
|
otherwise) that contradict the conditions of this License, they do not
|
|
excuse you from the conditions of this License. If you cannot convey a
|
|
covered work so as to satisfy simultaneously your obligations under this
|
|
License and any other pertinent obligations, then as a consequence you may
|
|
not convey it at all. For example, if you agree to terms that obligate you
|
|
to collect a royalty for further conveying from those to whom you convey
|
|
the Program, the only way you could satisfy both those terms and this
|
|
License would be to refrain entirely from conveying the Program.
|
|
|
|
\item Use with the GNU Affero General Public License.
|
|
|
|
Notwithstanding any other provision of this License, you have
|
|
permission to link or combine any covered work with a work licensed
|
|
under version 3 of the GNU Affero General Public License into a single
|
|
combined work, and to convey the resulting work. The terms of this
|
|
License will continue to apply to the part which is the covered work,
|
|
but the special requirements of the GNU Affero General Public License,
|
|
section 13, concerning interaction through a network will apply to the
|
|
combination as such.
|
|
|
|
\item Revised Versions of this License.
|
|
|
|
The Free Software Foundation may publish revised and/or new versions of
|
|
the GNU General Public License from time to time. Such new versions will
|
|
be similar in spirit to the present version, but may differ in detail to
|
|
address new problems or concerns.
|
|
|
|
Each version is given a distinguishing version number. If the
|
|
Program specifies that a certain numbered version of the GNU General
|
|
Public License ``or any later version'' applies to it, you have the
|
|
option of following the terms and conditions either of that numbered
|
|
version or of any later version published by the Free Software
|
|
Foundation. If the Program does not specify a version number of the
|
|
GNU General Public License, you may choose any version ever published
|
|
by the Free Software Foundation.
|
|
|
|
If the Program specifies that a proxy can decide which future
|
|
versions of the GNU General Public License can be used, that proxy's
|
|
public statement of acceptance of a version permanently authorizes you
|
|
to choose that version for the Program.
|
|
|
|
Later license versions may give you additional or different
|
|
permissions. However, no additional obligations are imposed on any
|
|
author or copyright holder as a result of your choosing to follow a
|
|
later version.
|
|
|
|
\item Disclaimer of Warranty.
|
|
|
|
\begin{sloppypar}
|
|
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
|
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
|
|
COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS''
|
|
WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
|
|
RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
|
|
SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
|
|
NECESSARY SERVICING, REPAIR OR CORRECTION.
|
|
\end{sloppypar}
|
|
|
|
\item Limitation of Liability.
|
|
|
|
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
|
|
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
|
|
AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
|
|
DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
|
|
DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM
|
|
(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
|
|
INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE
|
|
OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH
|
|
HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
DAMAGES.
|
|
|
|
\item Interpretation of Sections 15 and 16.
|
|
|
|
If the disclaimer of warranty and limitation of liability provided
|
|
above cannot be given local legal effect according to their terms,
|
|
reviewing courts shall apply local law that most closely approximates
|
|
an absolute waiver of all civil liability in connection with the
|
|
Program, unless a warranty or assumption of liability accompanies a
|
|
copy of the Program in return for a fee.
|
|
|
|
\begin{center}
|
|
{\Large\sc End of Terms and Conditions}
|
|
|
|
\bigskip
|
|
How to Apply These Terms to Your New Programs
|
|
\end{center}
|
|
|
|
If you develop a new program, and you want it to be of the greatest
|
|
possible use to the public, the best way to achieve this is to make it
|
|
free software which everyone can redistribute and change under these terms.
|
|
|
|
To do so, attach the following notices to the program. It is safest
|
|
to attach them to the start of each source file to most effectively
|
|
state the exclusion of warranty; and each file should have at least
|
|
the ``copyright'' line and a pointer to where the full notice is found.
|
|
|
|
{\footnotesize
|
|
\begin{verbatim}
|
|
<one line to give the program's name and a brief idea of what it does.>
|
|
|
|
Copyright (C) <textyear> <name of author>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
\end{verbatim}
|
|
}
|
|
|
|
Also add information on how to contact you by electronic and paper mail.
|
|
|
|
If the program does terminal interaction, make it output a short
|
|
notice like this when it starts in an interactive mode:
|
|
|
|
{\footnotesize
|
|
\begin{verbatim}
|
|
<program> Copyright (C) <year> <name of author>
|
|
|
|
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
|
This is free software, and you are welcome to redistribute it
|
|
under certain conditions; type `show c' for details.
|
|
\end{verbatim}
|
|
}
|
|
|
|
The hypothetical commands {\tt show w} and {\tt show c} should show
|
|
the appropriate
|
|
parts of the General Public License. Of course, your program's commands
|
|
might be different; for a GUI interface, you would use an ``about box''.
|
|
|
|
You should also get your employer (if you work as a programmer) or
|
|
school, if any, to sign a ``copyright disclaimer'' for the program, if
|
|
necessary. For more information on this, and how to apply and follow
|
|
the GNU GPL, see \texttt{http://www.gnu.org/licenses/}.
|
|
|
|
The GNU General Public License does not permit incorporating your
|
|
program into proprietary programs. If your program is a subroutine
|
|
library, you may consider it more useful to permit linking proprietary
|
|
applications with the library. If this is what you want to do, use
|
|
the GNU Lesser General Public License instead of this License. But
|
|
first, please read \texttt{http://www.gnu.org/philosophy/why-not-lgpl.html}.
|
|
|
|
\end{enumerate}
|
|
|
|
\chapter{The Affero General Public License, version 3}
|
|
|
|
|
|
\begin{center}
|
|
{\parindent 0in
|
|
|
|
Version 3, 19 November 2007
|
|
|
|
Copyright \copyright\ 2007 Free Software Foundation, Inc. \texttt{http://fsf.org/}
|
|
|
|
\bigskip
|
|
Everyone is permitted to copy and distribute verbatim copies of this
|
|
|
|
license document, but changing it is not allowed.}
|
|
|
|
\end{center}
|
|
|
|
\begin{center}
|
|
{\bf\large Preamble}
|
|
\end{center}
|
|
|
|
The GNU Affero General Public License is a free, copyleft license
|
|
for software and other kinds of works, specifically designed to ensure
|
|
cooperation with the community in the case of network server software.
|
|
|
|
The licenses for most software and other practical works are
|
|
designed to take away your freedom to share and change the works. By
|
|
contrast, our General Public Licenses are 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.
|
|
|
|
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.
|
|
|
|
Developers that use our General Public Licenses protect your rights
|
|
with two steps: (1) assert copyright on the software, and (2) offer
|
|
you this License which gives you legal permission to copy, distribute
|
|
and/or modify the software.
|
|
|
|
A secondary benefit of defending all users' freedom is that
|
|
improvements made in alternate versions of the program, if they
|
|
receive widespread use, become available for other developers to
|
|
incorporate. Many developers of free software are heartened and
|
|
encouraged by the resulting cooperation. However, in the case of
|
|
software used on network servers, this result may fail to come about.
|
|
The GNU General Public License permits making a modified version and
|
|
letting the public access it on a server without ever releasing its
|
|
source code to the public.
|
|
|
|
The GNU Affero General Public License is designed specifically to
|
|
ensure that, in such cases, the modified source code becomes available
|
|
to the community. It requires the operator of a network server to
|
|
provide the source code of the modified version running there to the
|
|
users of that server. Therefore, public use of a modified version, on
|
|
a publicly accessible server, gives the public access to the source
|
|
code of the modified version.
|
|
|
|
An older license, called the Affero General Public License and
|
|
published by Affero, was designed to accomplish similar goals. This is
|
|
a different license, not a version of the Affero GPL, but Affero has
|
|
released a new version of the Affero GPL which permits relicensing under
|
|
this license.
|
|
|
|
The precise terms and conditions for copying, distribution and
|
|
modification follow.
|
|
|
|
|
|
\begin{center}
|
|
{\Large \sc Terms and Conditions}
|
|
\end{center}
|
|
|
|
|
|
\begin{enumerate}
|
|
|
|
\addtocounter{enumi}{-1}
|
|
|
|
\item Definitions.
|
|
|
|
``This License'' refers to version 3 of the GNU Affero 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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:
|
|
\begin{enumerate}
|
|
\item The work must carry prominent notices stating that you modified
|
|
it, and giving a relevant date.
|
|
|
|
\item 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''.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
\end{enumerate}
|
|
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.
|
|
|
|
\item 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:
|
|
\begin{enumerate}
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
|
|
\item 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.
|
|
\end{enumerate}
|
|
|
|
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 the
|
|
User Product is transferred to the recipient in perpetuity or for a
|
|
fixed term (regardless of how the transaction is characterized), the
|
|
Corresponding Source conveyed under this section must be accompanied
|
|
by the Installation Information. But this requirement does not apply
|
|
if neither you nor any third party retains the ability to install
|
|
modified object code on the User Product (for example, the work has
|
|
been installed in ROM).
|
|
|
|
The requirement to provide Installation Information does not include a
|
|
requirement to continue to provide support service, warranty, or updates
|
|
for a work that has been modified or installed by the recipient, or for
|
|
the User Product in which it has been modified or installed. Access to a
|
|
network may be denied when the modification itself materially and
|
|
adversely affects the operation of the network or violates the rules and
|
|
protocols for communication across the network.
|
|
|
|
Corresponding Source conveyed, and Installation Information provided,
|
|
in accord with this section must be in a format that is publicly
|
|
documented (and with an implementation available to the public in
|
|
source code form), and must require no special password or key for
|
|
unpacking, reading or copying.
|
|
|
|
\item Additional Terms.
|
|
|
|
``Additional permissions'' are terms that supplement the terms of this
|
|
License by making exceptions from one or more of its conditions.
|
|
Additional permissions that are applicable to the entire Program shall
|
|
be treated as though they were included in this License, to the extent
|
|
that they are valid under applicable law. If additional permissions
|
|
apply only to part of the Program, that part may be used separately
|
|
under those permissions, but the entire Program remains governed by
|
|
this License without regard to the additional permissions.
|
|
|
|
When you convey a copy of a covered work, you may at your option
|
|
remove any additional permissions from that copy, or from any part of
|
|
it. (Additional permissions may be written to require their own
|
|
removal in certain cases when you modify the work.) You may place
|
|
additional permissions on material, added by you to a covered work,
|
|
for which you have or can give appropriate copyright permission.
|
|
|
|
Notwithstanding any other provision of this License, for material you
|
|
add to a covered work, you may (if authorized by the copyright holders of
|
|
that material) supplement the terms of this License with terms:
|
|
\begin{enumerate}
|
|
\item Disclaiming warranty or limiting liability differently from the
|
|
terms of sections 15 and 16 of this License; or
|
|
|
|
\item Requiring preservation of specified reasonable legal notices or
|
|
author attributions in that material or in the Appropriate Legal
|
|
Notices displayed by works containing it; or
|
|
|
|
\item Prohibiting misrepresentation of the origin of that material, or
|
|
requiring that modified versions of such material be marked in
|
|
reasonable ways as different from the original version; or
|
|
|
|
\item Limiting the use for publicity purposes of names of licensors or
|
|
authors of the material; or
|
|
|
|
\item Declining to grant rights under trademark law for use of some
|
|
trade names, trademarks, or service marks; or
|
|
|
|
\item Requiring indemnification of licensors and authors of that
|
|
material by anyone who conveys the material (or modified versions of
|
|
it) with contractual assumptions of liability to the recipient, for
|
|
any liability that these contractual assumptions directly impose on
|
|
those licensors and authors.
|
|
\end{enumerate}
|
|
|
|
All other non-permissive additional terms are considered ``further
|
|
restrictions'' within the meaning of section 10. If the Program as you
|
|
received it, or any part of it, contains a notice stating that it is
|
|
governed by this License along with a term that is a further
|
|
restriction, you may remove that term. If a license document contains
|
|
a further restriction but permits relicensing or conveying under this
|
|
License, you may add to a covered work material governed by the terms
|
|
of that license document, provided that the further restriction does
|
|
not survive such relicensing or conveying.
|
|
|
|
If you add terms to a covered work in accord with this section, you
|
|
must place, in the relevant source files, a statement of the
|
|
additional terms that apply to those files, or a notice indicating
|
|
where to find the applicable terms.
|
|
|
|
Additional terms, permissive or non-permissive, may be stated in the
|
|
form of a separately written license, or stated as exceptions;
|
|
the above requirements apply either way.
|
|
|
|
\item Termination.
|
|
|
|
You may not propagate or modify a covered work except as expressly
|
|
provided under this License. Any attempt otherwise to propagate or
|
|
modify it is void, and will automatically terminate your rights under
|
|
this License (including any patent licenses granted under the third
|
|
paragraph of section 11).
|
|
|
|
However, if you cease all violation of this License, then your
|
|
license from a particular copyright holder is reinstated (a)
|
|
provisionally, unless and until the copyright holder explicitly and
|
|
finally terminates your license, and (b) permanently, if the copyright
|
|
holder fails to notify you of the violation by some reasonable means
|
|
prior to 60 days after the cessation.
|
|
|
|
Moreover, your license from a particular copyright holder is
|
|
reinstated permanently if the copyright holder notifies you of the
|
|
violation by some reasonable means, this is the first time you have
|
|
received notice of violation of this License (for any work) from that
|
|
copyright holder, and you cure the violation prior to 30 days after
|
|
your receipt of the notice.
|
|
|
|
Termination of your rights under this section does not terminate the
|
|
licenses of parties who have received copies or rights from you under
|
|
this License. If your rights have been terminated and not permanently
|
|
reinstated, you do not qualify to receive new licenses for the same
|
|
material under section 10.
|
|
|
|
\item Acceptance Not Required for Having Copies.
|
|
|
|
You are not required to accept this License in order to receive or
|
|
run a copy of the Program. Ancillary propagation of a covered work
|
|
occurring solely as a consequence of using peer-to-peer transmission
|
|
to receive a copy likewise does not require acceptance. However,
|
|
nothing other than this License grants you permission to propagate or
|
|
modify any covered work. These actions infringe copyright if you do
|
|
not accept this License. Therefore, by modifying or propagating a
|
|
covered work, you indicate your acceptance of this License to do so.
|
|
|
|
\item Automatic Licensing of Downstream Recipients.
|
|
|
|
Each time you convey a covered work, the recipient automatically
|
|
receives a license from the original licensors, to run, modify and
|
|
propagate that work, subject to this License. You are not responsible
|
|
for enforcing compliance by third parties with this License.
|
|
|
|
An ``entity transaction'' is a transaction transferring control of an
|
|
organization, or substantially all assets of one, or subdividing an
|
|
organization, or merging organizations. If propagation of a covered
|
|
work results from an entity transaction, each party to that
|
|
transaction who receives a copy of the work also receives whatever
|
|
licenses to the work the party's predecessor in interest had or could
|
|
give under the previous paragraph, plus a right to possession of the
|
|
Corresponding Source of the work from the predecessor in interest, if
|
|
the predecessor has it or can get it with reasonable efforts.
|
|
|
|
You may not impose any further restrictions on the exercise of the
|
|
rights granted or affirmed under this License. For example, you may
|
|
not impose a license fee, royalty, or other charge for exercise of
|
|
rights granted under this License, and you may not initiate litigation
|
|
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
|
any patent claim is infringed by making, using, selling, offering for
|
|
sale, or importing the Program or any portion of it.
|
|
|
|
\item Patents.
|
|
|
|
A ``contributor'' is a copyright holder who authorizes use under this
|
|
License of the Program or a work on which the Program is based. The
|
|
work thus licensed is called the contributor's ``contributor version''.
|
|
|
|
A contributor's ``essential patent claims'' are all patent claims
|
|
owned or controlled by the contributor, whether already acquired or
|
|
hereafter acquired, that would be infringed by some manner, permitted
|
|
by this License, of making, using, or selling its contributor version,
|
|
but do not include claims that would be infringed only as a
|
|
consequence of further modification of the contributor version. For
|
|
purposes of this definition, ``control'' includes the right to grant
|
|
patent sublicenses in a manner consistent with the requirements of
|
|
this License.
|
|
|
|
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
|
patent license under the contributor's essential patent claims, to
|
|
make, use, sell, offer for sale, import and otherwise run, modify and
|
|
propagate the contents of its contributor version.
|
|
|
|
In the following three paragraphs, a ``patent license'' is any express
|
|
agreement or commitment, however denominated, not to enforce a patent
|
|
(such as an express permission to practice a patent or covenant not to
|
|
sue for patent infringement). To ``grant'' such a patent license to a
|
|
party means to make such an agreement or commitment not to enforce a
|
|
patent against the party.
|
|
|
|
If you convey a covered work, knowingly relying on a patent license,
|
|
and the Corresponding Source of the work is not available for anyone
|
|
to copy, free of charge and under the terms of this License, through a
|
|
publicly available network server or other readily accessible means,
|
|
then you must either (1) cause the Corresponding Source to be so
|
|
available, or (2) arrange to deprive yourself of the benefit of the
|
|
patent license for this particular work, or (3) arrange, in a manner
|
|
consistent with the requirements of this License, to extend the patent
|
|
license to downstream recipients. ``Knowingly relying'' means you have
|
|
actual knowledge that, but for the patent license, your conveying the
|
|
covered work in a country, or your recipient's use of the covered work
|
|
in a country, would infringe one or more identifiable patents in that
|
|
country that you have reason to believe are valid.
|
|
|
|
If, pursuant to or in connection with a single transaction or
|
|
arrangement, you convey, or propagate by procuring conveyance of, a
|
|
covered work, and grant a patent license to some of the parties
|
|
receiving the covered work authorizing them to use, propagate, modify
|
|
or convey a specific copy of the covered work, then the patent license
|
|
you grant is automatically extended to all recipients of the covered
|
|
work and works based on it.
|
|
|
|
A patent license is ``discriminatory'' if it does not include within
|
|
the scope of its coverage, prohibits the exercise of, or is
|
|
conditioned on the non-exercise of one or more of the rights that are
|
|
specifically granted under this License. You may not convey a covered
|
|
work if you are a party to an arrangement with a third party that is
|
|
in the business of distributing software, under which you make payment
|
|
to the third party based on the extent of your activity of conveying
|
|
the work, and under which the third party grants, to any of the
|
|
parties who would receive the covered work from you, a discriminatory
|
|
patent license (a) in connection with copies of the covered work
|
|
conveyed by you (or copies made from those copies), or (b) primarily
|
|
for and in connection with specific products or compilations that
|
|
contain the covered work, unless you entered into that arrangement,
|
|
or that patent license was granted, prior to 28 March 2007.
|
|
|
|
Nothing in this License shall be construed as excluding or limiting
|
|
any implied license or other defenses to infringement that may
|
|
otherwise be available to you under applicable patent law.
|
|
|
|
\item No Surrender of Others' Freedom.
|
|
|
|
If conditions are imposed on you (whether by court order, agreement or
|
|
otherwise) that contradict the conditions of this License, they do not
|
|
excuse you from the conditions of this License. If you cannot convey a
|
|
covered work so as to satisfy simultaneously your obligations under this
|
|
License and any other pertinent obligations, then as a consequence you may
|
|
not convey it at all. For example, if you agree to terms that obligate you
|
|
to collect a royalty for further conveying from those to whom you convey
|
|
the Program, the only way you could satisfy both those terms and this
|
|
License would be to refrain entirely from conveying the Program.
|
|
|
|
\item Remote Network Interaction; Use with the GNU General Public License.
|
|
|
|
Notwithstanding any other provision of this License, if you modify the
|
|
Program, your modified version must prominently offer all users interacting
|
|
with it remotely through a computer network (if your version supports such
|
|
interaction) an opportunity to receive the Corresponding Source of your
|
|
version by providing access to the Corresponding Source from a network
|
|
server at no charge, through some standard or customary means of
|
|
facilitating copying of software. This Corresponding Source shall include
|
|
the Corresponding Source for any work covered by version 3 of the GNU
|
|
General Public License that is incorporated pursuant to the following
|
|
paragraph.
|
|
|
|
Notwithstanding any other provision of this License, you have permission to
|
|
link or combine any covered work with a work licensed under version 3 of
|
|
the GNU General Public License into a single combined work, and to convey
|
|
the resulting work. The terms of this License will continue to apply to
|
|
the part which is the covered work, but the work with which it is combined
|
|
will remain governed by version 3 of the GNU General Public License.
|
|
|
|
\item Revised Versions of this License.
|
|
|
|
The Free Software Foundation may publish revised and/or new versions of
|
|
the GNU Affero General Public License from time to time. Such new versions will
|
|
be similar in spirit to the present version, but may differ in detail to
|
|
address new problems or concerns.
|
|
|
|
Each version is given a distinguishing version number. If the
|
|
Program specifies that a certain numbered version of the GNU Affero General
|
|
Public License ``or any later version'' applies to it, you have the
|
|
option of following the terms and conditions either of that numbered
|
|
version or of any later version published by the Free Software
|
|
Foundation. If the Program does not specify a version number of the
|
|
GNU Affero General Public License, you may choose any version ever published
|
|
by the Free Software Foundation.
|
|
|
|
If the Program specifies that a proxy can decide which future
|
|
versions of the GNU Affero General Public License can be used, that proxy's
|
|
public statement of acceptance of a version permanently authorizes you
|
|
to choose that version for the Program.
|
|
|
|
Later license versions may give you additional or different
|
|
permissions. However, no additional obligations are imposed on any
|
|
author or copyright holder as a result of your choosing to follow a
|
|
later version.
|
|
|
|
\item Disclaimer of Warranty.
|
|
|
|
\begin{sloppypar}
|
|
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
|
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
|
|
COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS''
|
|
WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
|
|
RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
|
|
SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
|
|
NECESSARY SERVICING, REPAIR OR CORRECTION.
|
|
\end{sloppypar}
|
|
|
|
\item Limitation of Liability.
|
|
|
|
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
|
|
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
|
|
AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
|
|
DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
|
|
DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM
|
|
(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
|
|
INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE
|
|
OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH
|
|
HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
DAMAGES.
|
|
|
|
\item Interpretation of Sections 15 and 16.
|
|
|
|
If the disclaimer of warranty and limitation of liability provided
|
|
above cannot be given local legal effect according to their terms,
|
|
reviewing courts shall apply local law that most closely approximates
|
|
an absolute waiver of all civil liability in connection with the
|
|
Program, unless a warranty or assumption of liability accompanies a
|
|
copy of the Program in return for a fee.
|
|
|
|
\begin{center}
|
|
{\Large\sc End of Terms and Conditions}
|
|
|
|
\bigskip
|
|
How to Apply These Terms to Your New Programs
|
|
\end{center}
|
|
|
|
If you develop a new program, and you want it to be of the greatest
|
|
possible use to the public, the best way to achieve this is to make it
|
|
free software which everyone can redistribute and change under these terms.
|
|
|
|
To do so, attach the following notices to the program. It is safest
|
|
to attach them to the start of each source file to most effectively
|
|
state the exclusion of warranty; and each file should have at least
|
|
the ``copyright'' line and a pointer to where the full notice is found.
|
|
|
|
{\footnotesize
|
|
\begin{verbatim}
|
|
<one line to give the program's name and a brief idea of what it does.>
|
|
|
|
Copyright (C) <textyear> <name of author>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
\end{verbatim}
|
|
}
|
|
|
|
Also add information on how to contact you by electronic and paper mail.
|
|
|
|
If your software can interact with users remotely through a computer
|
|
network, you should also make sure that it provides a way for users to
|
|
get its source. For example, if your program is a web application, its
|
|
interface could display a ``Source'' link that leads users to an archive
|
|
of the code. There are many ways you could offer source, and different
|
|
solutions will be better for different programs; see section 13 for the
|
|
specific requirements.
|
|
|
|
You should also get your employer (if you work as a programmer) or
|
|
school, if any, to sign a ``copyright disclaimer'' for the program, if
|
|
necessary. For more information on this, and how to apply and follow
|
|
the GNU AGPL, see \texttt{http://www.gnu.org/licenses/}.
|
|
|
|
\end{enumerate}
|