Bug#739411: udpkg: Support for data.tar, control.tar and control.tar.xz

[Guillem Jover <guillem@debian.org>]

Package: udpkg
Version: 1.16
Severity: wishlist
Tags: patch
X-Debbugs-CC: Philipp Kern <pkern@debian.org>

Hi!

Here's a patch series adding data.tar, control.tar and control.tar.xz
support, the uncompressed member support just out of completeness. To
create a deb package with a different control.tar compression you can
use «dpkg-deb --uniform-compression pkg/» for example.

Note I've only tested «udpkg -c» and «udpkg -f», the changes in unpacking
are pretty obvious, but testing them would be nice. I've also used cat
for the uncompressed members as I didn't think further optimization there
was worth it(?). I've also tried to use the prevailing coding-style,
which in some cases conflicted with the immediate surrounding code.

Thanks,
Guillem