ZyXEL Communications NSA310 User Manual page 439

Appendix E Open Source Licences
Library. 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 Library or any portion of it, thus forming a work based
on the Library, 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) The modified work must itself be a
software library. b) You must cause the files modified to carry prominent notices stating that you
changed the files and the date of any change. c) You must cause the whole of the work to be
licensed at no charge to all third parties under the terms of this License. d) If a facility in the
modified Library refers to a function or a table of data to be supplied by an application program that
uses the facility, other than as an argument passed when the facility is invoked, then you must
make a good faith effort to ensure that, in the event an application does not supply such function or
table, the facility still operates, and performs whatever part of its purpose remains meaningful. (For
example, a function in a library to compute square roots has a purpose that is entirely well-defined
independent of the application. Therefore, Subsection 2d requires that any application-supplied
function or table used by this function must be optional: if the application does not supply it, the
square root function must still compute square roots.) These requirements apply to the modified
work as a whole. If identifiable sections of that work are not derived from the Library, 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 Library, 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 Library. In addition, mere aggregation of another work not based on
the Library with the Library (or with a work based on the Library) on a volume of a storage or
distribution medium does not bring the other work under the scope of this License.
3. You may opt to apply the terms of the ordinary GNU General Public License instead of this
License to a given copy of the Library. To do this, you must alter all the notices that refer to this
License, so that they refer to the ordinary GNU General Public License, version 2, instead of to this
License. (If a newer version than version 2 of the ordinary GNU General Public License has
appeared, then you can specify that version instead if you wish.) Do not make any other change in
these notices. Once this change is made in a given copy, it is irreversible for that copy, so the
ordinary GNU General Public License applies to all subsequent copies and derivative works made
from that copy. This option is useful when you wish to copy part of the code of the Library into a
program that is not a library.
4. You may copy and distribute the Library (or a portion or derivative of it, under Section 2) in
object code or executable form under the terms of Sections 1 and 2 above provided that you
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. If distribution of 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 satisfies the
requirement to distribute the source code, even though third parties are not
compelled to copy the source along with the object code.
5. A program that contains no derivative of any portion of the Library, but is designed to work with
the Library by being compiled or linked with it, is called a "work that uses the Library". Such a work,
in isolation, is not a derivative work of the Library, and therefore falls outside the scope of this
License.
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Media Server User's Guide