> with libarchive comes a complementary tar frontend.  [...]

If you're looking for other tars, I wrote one.  Of course, its feature
set is different from other tars, more or less depending on what you
compare it to, but it does some things I've never seen anywhere else,
such as support (using a private extension, of course) for archives
members bigger than 8GB.  I also threw the Zwicky tests at it, and
fixed things until it passed all the static tests and did as well as
could be expected on the dynamic tests; while that was years ago, I
don't *think* I've broken anything since then.
ftp.rodents.montreal.qc.ca:/mouse/misc/tar.c for them as wants.

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