[sane-devel] Canon Scanner P-208 II

Thomas Geier ziggystar at gmx.de
Sat Sep 24 07:41:22 UTC 2016

But they link their code against SANE, and SANE is GPL licensed. So 
doesn't this enforce their code to be GPL licensed, independent of what 
they say?

On 24.09.2016 09:23, Olaf Meeuwissen wrote:
> Hi Oliver,
> Oliver Jan Krylow writes:
>> http://www.canon.de/support/consumer_products/products/scanners/others/imageformula_p-208ii.aspx?type=drivers&language=&os=#disclaimer
> While I do understand a fair bit of German, I wouldn't want to agree to
> any license agreement written in it ;-)
> Here's a link that gives an English version for the 32-bit Linux
> driver.  There is no 64-bit driver.
>    http://www.canon.co.uk/support/consumer_products/products/scanners/others/imageformula_p-208ii.aspx?type=drivers&language=EN&os=Linux%20%2832-bit%29
> Everyone should read the whole license themselves, but it has:
>    You are not permitted to: (1) [...] convey, transfer, copy, modify,
>    adapt, merge, translate, convert to another programming language,
>    reverse-engineer, decompile, modify, alter, disassemble or create
>    derivative works based on the whole or any part of the Software [...];
>    (2) reproduce or deal in the Software or any part thereof, or allow
>    any third party to reproduce or deal in the Software or any part
>    thereof, in any way, except as expressly permitted by this Agreement
>    [...].
> That looks extremely bleak.  But, near the end, it also says:
>    Other license terms: When you install the software you may be required
>    to accept another end user license agreement which corresponds to the
>    specific software you are installing. [...] In the event of any
>    contradiction or inconsistency between the terms of such end user
>    license agreement and these license terms, in respect of the software
>    you are installing, the terms of such end user license agreement shall
>    prevail.
> So I decided to have a look.  The source tarball and debian package in
> the zip archive (didn't look at the rpm but assume it to be the same)
> contain a LICENSE-p208II-1.00E.txt file that says, amongst a pile of
> other things you really should read yourself:
>    [...] You may modify the Software only for your own use and reverse
>    engineer the same for debugging such modifications.  [...]
>    Except as expressly granted or permitted herein, you shall not use,
>    assign, sublicense, sell, rent, lease, loan, convey or transfer to any
>    third party the Software.
>    [...]
>    This product "Canon ImageFOMULA Scanner Driver for Linux vx.xx"
>    ("Product") of Canon Electronics Inc. ("Canon") contains the free
>    software components as listed in Schedule 2 of Exhibit attached
>    hereto, and which are licensed under GNU General Public License
>    version 2 published by the Free Software Foundation ("GPL").
>    Such free software components are free software; you can redistribute
>    them and/or modify them under the terms of GPL.
>    [...]
>    Schedule 2
>    canondr_com_usb.1.1.0
>    libsane-canondr.so.1.0.0
>    canondr.conf
> OK, so those parts are GPL.  Let's have a look then.
> I only took a quick look but libsane-canondr.so.1.0.0 basically just
> gets the list of supported options from a configuration file and uses
> SANE's network protocol to "outsource" all of to a stripped binary by
> the name of canondr_backendp208II.
> This binary is execl()d from libsane-canondr.so.1.0.0, just as the
> canondr_com_usb.1.1.0 USB communication utility.  canondr_backendp208II
> is handed file descriptors that enable it to use canondr_com_usb.1.1.0.
> Source code for libsane-canondr.so.1.0.0 as canondr_com_usb.1.1.0 does
> not contain anything that might be of interest.
> Nothing useful for the SANE project but hope this helps anyway,

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