On Wed, Jan 29, 2003 at 05:30:16PM +0100, roberto.vigone@xxxxxxxxxx wrote:
> As author I am realizing on behalf of R&R Editore (Jackson Libri) the
> course to issues "Hacker@tack" (30,000 copies for issue).
>
> We would want to distribute the version to freeware software of:
>
> 1) Ethereal Network Analyzer 0.99 (free version)
You mean "0.9.9", not "0.99".
> for MS Windows on the Cd-rom attached number 03 to the course.
> (we have supplied to unload from the site: http://ethereal.ntop.org)
Presumably you specified that site because that's the closest mirror for
Italian users.
> It possible to have the authorization?
Yes - although that authorization comes with some conditions, i.e. you
have to distribute the source code as well.
To get the authorization, download the Ethereal source code; the
authorization is found in the file "COPYING" in the top-level directory.
I.e., Ethereal is licensed under the "GNU GENERAL PUBLIC LICENSE", which
forbids *us*, the Ethereal developers, from *preventing* people from
giving it away!
However, you also have to make the source available to anybody to whom
you give the binary; to quote clause 3 of the GPL:
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
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 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.
You should probably put a copy of the source code onto the CD-ROM as
well, if it'll fit. (You don't have to write a document explaining how
to use the source code, you only have to put the source code on the
CD-ROM.)
