47
Appendices RT-N12 B1
Also, for each author’s protection and ours, we want to make certain that everyone
understands that there is no warranty for this free software. If the software is
modied by someone else and passed on, we want its recipients to know that what
they have is not the original, so that any problems introduced by others will not
reect on the original authors’ reputations.
Finally, any free program is threatened constantly by software patents. We wish to
avoid the danger that redistributors of a free program will individually obtain patent
licenses, in effect making the program proprietary. To prevent this, we have made it
clear that any patent must be licensed for everyone’s free use or not licensed at all.
The precise terms and conditions for copying, distribution and modication follow.
Terms & conditions for copying, distribution, & modication
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 modications and/or
translated into another language. (Hereinafter, translation is included without
limitation in the term “modication”.) Each licensee is addressed as “you”.
Activities other than copying, distribution and modication 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
modications or work under the terms of Section 1 above, provided that you
also meet all of these conditions:
a) You must cause the modied les to carry prominent notices stating that
you changed the 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 thereof, to be licensed
as a whole at no charge to all third parties under the terms of this License.
c) If the modied program normally reads commands interactively when run,