Ensure symlinks cannot be used to breakout of unpack directory.
Evaluate absolute symlinks as scoped to unpack directory.
Allow symlinks which point outside the root to be created.
Scope all resolution of symlinks to the unpack directory.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Touching the file before hardlinking was covering up a bug in
how hard links are handled in tar. Without the touch the hardlink
should still be included and both files should hardlink after
the tar is applied.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Test deleting multiple files, directories, and creating
the equivalent of an opaque directory.
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
Removed unused requires root test function and updated
tar requires function to use lookup method.
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
Archive package handles generating and applying diff tar streams
based on the OCI diff tar specification.
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
