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slirp: update COPYRIGHT to use full 3-Clause BSD License 

According to commit 2f5f899631 ("Remove
the advertising clause from the slirp license"), Danny Gasparovski
gave permission to license slirp code under 3-clause BSD license:

    Subject: RE: Slirp license
    Date: Thu, 8 Jan 2009 10:51:00 +1100
    From: "Gasparovski, Daniel" <Daniel.Gasparovski@ato.gov.au>
    To: "Richard Fontana" <rfontana@redhat.com>

    I have no objection to having Slirp code in QEMU be licensed under
    the 3-clause BSD license.

slirp/COPYRIGHT's initial version in 2004 (commit 5fafdf24) listed
only 3 clauses BUT used the poisonous advertising clause for clause 3
which is the controversial clause of non-free 4-clause (that is, it
appears that the BSD-4 license was copied, and then the WRONG clause
was deleted, when creating COPYRIGHT.  Perhaps explained as an easy
mistake to make since 3-clause was created by removing clause 3 of the
4-clause, where you sometimes see the three-clause version with
clauses 1, 2, 4; but more commonly see a renumbered version with
clauses 1, 2, 3 to close the gap. If you pay attention only to clause
numbers instead of content, it can be easy to confuse which clause to
delete to go from 4-clause to 3-clause).

Commit 2f5f89963 removed the poisonous wrong clause on
the grounds of moving from 4-clause to 3-clause; but did not add the
missing clause, which makes it LOOK like the 2-clause version.  But I
think we have a decent enough trail showing the intent for 3-clause.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Marc-André Lureau 2019-03-14 12:51:28 +01:00
parent d97a39d903
commit 772c712731
1 changed files with 3 additions and 0 deletions
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@ -25,6 +25,9 @@ The copyright terms and conditions:
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY