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 modifications or
work under the terms of Section 1 above, provided that
you also meet all of these conditions :
a) You must cause the modified files to carry prominent
notices stating that you changed the files 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 thereof, to be licensed as a whole
at no charge to all third parties under the terms of this
License.
c) If the modified 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 modified work as a whole.
If identifiable 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 third party, for a charge no more than
your cost of physically performing source distribution, a
complete machinereadable 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 modifications
to it. For an executable work, complete source code
means all the source code for all modules it contains,
plus any associated interface definition files, 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 License. If you cannot distribute so
as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a
consequence you may not distribute the Program at all.
For example, if a patent license would not permit royaltyfree
redistribution of the Program by all those who receive copies
directly or indirectly through you, then the only way you could
satisfy both it and this License would be to refrain entirely
from distribution of the Program.
If any portion of this section is held invalid or unenforceable
under any particular circumstance, the balance of the section
is intended to apply and the section as a whole is intended
to apply in other circumstances. It is not the purpose of
this section to induce you to infringe any patents or other
property right claims or to contest validity of any such
claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have
made generous contributions to the wide range of software
distributed through that system in reliance on consistent
