The ebuild currently has LICENSE="as-is" which most likely is wrong. There is no license included in the tarball. Also I cannot find any info about distribution terms on the package's HOMEPAGE.
There's this comment in the ebuild: # Email sent to author on 2012-01-18 querying about license @vapier: Was there any reply?
i did at one point, but it was more of a "i'll fix it" response rather than "the license is XXX". that was the last i heard.
(In reply to SpanKY from comment #2) > i did at one point, but it was more of a "i'll fix it" response rather than > "the license is XXX". that was the last i heard. If we don't get anything better from upstream, I suggest LICENSE="all-rights-reserved" plus mirror restriction.
I've asked upstream again.
(In reply to Ulrich Müller from comment #4) > I've asked upstream again. No reply. We must assume all-rights-reserved then. 24 Apr 2014; Ulrich Müller <ulm@gentoo.org> smdk-dltool-0.20-r3.ebuild, smdk-dltool-0.20-r4.ebuild: Fix LICENSE, add mirror and bindist restrictions, bug 446160.