GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS
FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which
contains a notice placed by the copyright holder saying it may
be distributed under the terms of this General Public License.
The "Program", below, refers to any such program or work, and
a "work based on the Program" means either the Program or
any derivative work under copyright law: that is to say, a work
containing the Program or a portion of it, either verbatim or with
modifi cations and/or translated into another language. (Hereinafter,
translation is included without limitation in the term "modifi cation".)
Each licensee is addressed as "you".
Activities other than copying, distribution and modifi cation are
not covered by this License;they are outside its scope. The act
of running the Program is not restricted, and the output from the
Program is covered only if its contents constitute a work based
on the Program (independent of having been made by running
the Program). Whether that is true depends on what the Program
does.
1.You may copy and distribute 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 and disclaimer of warranty; keep
intact all the notices that refer to this License and to the absence
of any warranty; and give any other recipients of the Program a
copy of this License along with the Program.
You may charge a fee for the physical act of transferring a copy,
and you may at your option offer warranty protection in exchange
for a fee.
2.You may modify your copy or copies of the Program or any
portion of it, thus forming a work based on the Program, and
copy and distribute such modifi cations or work under the terms
of Section 1 above, provided that you also meet all of these
conditions:
a) You must cause the modifi ed fi les to carry prominent
notices stating that you changed the fi les and the date of
any change.
b) You must cause any work that you distribute or publish,
that in whole or in part contains or is derived from the
Program or any part there of, to be licensed as a whole
at no charge to all third parties under the terms of this
License.
c) If the modifi ed program normally reads commands
interactively when run, you must cause it, when started
running for such interactive use in the most ordinary
way, to print or display an announcement including an
appropriate copyright notice and a notice that there is
no warranty (or else, saying that you provide a warranty)
and that users may redistribute the program under these
conditions, and telling the user how to view a copy of this
License.
(Exception: if the Program itself is interactive but does not
normally print such an announcement, your work based
on the Program is not required to print an announcement.)
These requirements apply to the modifi ed work as a whole.
If identifi able sections of that work are not derived from the
Program,and can be reasonably considered independent and
separate works in themselves, then this License, and its terms, do
not apply to those sections when you distribute them as separate
works. But when you distribute the same sections as part of a
whole which is a work based on the Program, the distribution
of the whole must be on the terms of this License, whose
permissions for other licensees extend to the entire whole, and
thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is
to exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the
Program with the Program (or with a work based on the Program)
on a volume of a storage or distribution medium does not bring
the other work under the scope of this License.
3.You may copy and distribute the Program (or a work based
on it, under Section 2) in object code or executable form under
the terms of Sections 1 and 2 above provided that you also do
one of the following:
a) Accompany it with the complete corresponding machine-
readable source code,which must be distributed under the
terms of Sections 1 and 2 above on a medium customarily
used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any thirdparty, for a charge no more than
your cost of physically performing source distribution, a
complete machine-readable copy of the corresponding
source code, to be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software
interchange;or,
c) Accompany it with the information you received as to
the offer to distribute corresponding source code. (This
alternative is allowed only for noncommercial distribution
and only if you received the program in object code
or executable form with such an offer, in accord with
Subsection b above.)
The source code for a work means the preferred form of the work
for making modifi cations to it. For an executable work, complete
source code means all the source code for all modules it contains,
plus any associated interface defi nition fi les, plus the scripts used
to control compilation and installation of the executable. However,
as a special exception, the source code distributed need not
include anything that is normally distributed (in either source or
binary form) with the major components (compiler, kernel, and so
on) of the operating system on which the executable runs, unless
that component itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4.You may not copy, modify, sublicense, or distribute the
Program except as expressly provided under this License. Any
attempt otherwise to copy, modify, sublicense or distribute the
Program is void, and will automatically terminate your rights
under this License. However, parties who have received copies,
or rights, from you under this License will not have their licenses
terminated so long as such parties remain in full compliance.
5.You are not required to accept this License, since you have
not signed it. However, nothing else grants you permission to
modify or distribute the Program or its derivative works. These
actions are prohibited by law if you do not accept this License.
Therefore, by modifying or distributing the Program (or any work
based on the Program), you indicate your acceptance of this
License to do so, and all its terms and conditions for copying,
distributing or modifying the Program or works based on it.
6.Each time you redistribute the Program (or any work based
on the Program), the recipient automatically receives a license
from the original licensor to copy, distribute or modify the Program
subject to these terms and conditions. You may not impose any
further restrictions on the recipients' exercise of the rights granted
herein. You are not responsible for enforcing compliance by third
parties to this License.
7.If as a consequence of a court judgment or allegation of
patent infringement or for any other reason (not limited to patent
issues), 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
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