Bug 6953 - Sun RPC implementation license non-free
Summary: Sun RPC implementation license non-free
Status: RESOLVED FIXED
Alias: None
Product: glibc
Classification: Unclassified
Component: nis (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: ---
Assignee: Thorsten Kukuk
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-10-09 01:14 UTC by Ben Finney
Modified: 2014-07-02 07:39 UTC (History)
2 users (show)

See Also:
Host:
Target:
Build:
Last reconfirmed:
fweimer: security-


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Description Ben Finney 2008-10-09 01:14:31 UTC
GNU libc currently contains an implementation of RPC (in the ‘sunrpc/’ 
directory) under the following copyright and license:

    Copyright (C) 1984, Sun Microsystems, Inc.

    Sun RPC is a product of Sun Microsystems, Inc. and is provided for
    unrestricted use provided that this legend is included on all tape media
    and as a part of the software program in whole or part.  Users may copy
    or modify Sun RPC without charge, but are not authorized to license or
    distribute it to anyone else except as part of a product or program
    developed by the user.

    SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
    WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
    PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.

    Sun RPC is provided with no support and without any obligation on the
    part of Sun Microsystems, Inc. to assist in its use, correction,
    modification or enhancement.

    SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
    INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
    OR ANY PART THEREOF.

    In no event will Sun Microsystems, Inc. be liable for any lost revenue
    or profits or other special, indirect and consequential damages, even if
    Sun has been advised of the possibility of such damages.

The clause granting redistribution,

    Users may copy or modify Sun RPC without charge, but are not
    authorized to license or distribute it to anyone else except as
    part of a product or program developed by the user.

does not seem to meet the Free Software Definition. It forbids 
redistribution except “as part of a product or program developed by 
the user”. So recipients who have not developed the “program or 
product” may not redistribute the work under this license.

Perhaps the simplest resolution for this would be for the GNU libc 
maintainers to receive a different, free license for this code from 
Sun, like the GNU GPLv2 or GPLv3.
Comment 1 Ben Finney 2008-10-09 03:03:42 UTC
> receive a different, free license for this code from Sun, like the GNU GPLv2
or GPLv3

The above licenses may be incompatible with releasing the glibc work as a whole
under the LGPL.

Receiving the RPC code from Sun under a compatible license (ideally, the same
license terms as the bulk of glibc itself) would be best.
Comment 2 Ulrich Drepper 2008-10-31 15:30:22 UTC
Suspended until some legal people picks this up.
Comment 3 Aurelien Jarno 2009-05-21 14:55:04 UTC
This has been fixed in the git tree. Marking the bug as fixed.
Comment 4 Ben Finney 2014-07-02 07:07:01 UTC
> This has been fixed in the git tree.

I'm glad to know that. Can you please put a link to the specific change in the tree which fixes this bug?
Comment 5 Allan McRae 2014-07-02 07:26:09 UTC
This looks like git commit 9bbd0ddc:
https://sourceware.org/git/?p=glibc.git;a=commit;h=9bbd0ddc
Comment 6 Ben Finney 2014-07-02 07:39:38 UTC
(In reply to Allan McRae from comment #5)
> This looks like git commit 9bbd0ddc:
> https://sourceware.org/git/?p=glibc.git;a=commit;h=9bbd0ddc

Great. So the license terms for Sun RPC are now a BSD-style 3-clause (attribution, no-endorsement) license, which meets the free software definition.

Thank you to everyone involved in getting this software under free-software terms!