There's a race condition with the umask() execution in multi-threaded
use of the libarchive.
It's the users responsibility to mutex archive_write_disk_header()
call.
Signed-off-by: Peter Kaestle <peter.kaestle@nokia.com>
Zstandard support is not yet available in 7-Zip, though it is planned
for a future release:
https://sourceforge.net/p/sevenzip/feature-requests/1580/
The compression ID used here (4F71101) is copied from a popular 7-Zip
fork, which added ZSTD support back in 2017, and is mentioned in the
upstream 7-Zip ticket linked above:
https://github.com/mcmilk/7-Zip-zstd.git
Note that this does not add write support for Zstandard compression
in 7z archives.
Relates to #1656.
Tobias Stoeckmann
Adrian Vovk
Peter Kaestle
Kai
Mostyn Bramley-Moore
Christian Hesse
Tom Ivar Helbekkmo
Terrell Russell
Martin Matuska
Tim Kientzle
NamedKitten