Date: Fri, 17 May 2013 19:49:32 -0400 From: Clifford Yapp <cliffyapp@gmail.com> To: freebsd-questions@freebsd.org Cc: des@freebsd.org Subject: License on the original BSD diff Message-ID: <CAHsgyAT0EoLJYD7RvhFReShPezGyN4VN8nMRfQ58jUU5XBmm3Q@mail.gmail.com>
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Looking at the original code for diff: http://svnweb.freebsd.org/csrg/usr.bin/diff/ The licensing that applies to it seems to be simply that of the standard BSD license: http://www.freebsd.org/copyright/license.html Is that correct? If so, what's the relationship between that code and the diff code currently in openbsd: http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/diff/ The original commit in the openbsd tree by deraadt seems to indicate that the Caldera license is what made the code usable, but if the diffreg.c file was in the original BSD 4.4 lite release (diffing the original openBSD diffreg.c upload with the copy in csrg shows only the BSD header and one other line as differences) wouldn't the code already have been usable from the get-go without Caldera's say-so? The diffreg.c file in csrg shows a copyright of the Regents of the University of California, and doesn't mention Caldera at all. The issue is of some interest because the wiki page documenting candidates to replace GPL software in base list the OpenBSD copies of the diff tools: https://wiki.freebsd.org/GPLinBase The 4 clause BSD license that comes with the Caldera copyright is a problem when it comes to mixing and matching with (L)GPL code, which is one of my possible use cases, so I'm interested in whether the original diff in csrg can be regarded as licensed with the standard 3 clause license? If that is the case, is there a possibility that the changes made to OpenBSD's version could be re-applied starting with the 4.4BSD-lite copy as a base rather than the Caldera version to create a "modern" 3-clause BSD licensed diff? Apologies if this has been covered before in the process of the SoC projects, but if it was I haven't turned it up yet - any help appreciated. Thanks, CY
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