I am trying to determine if I'm encountering a bug or expected behavior with Archive::Tar.
I've noticed that if I archive a directory such as /usr/include/sys/*.h that permissions are retained only for files underneath the sys directory.
The permissions for /usr/include/sys change to the user that is extracting the files, including root.
If the directory(/usr/include/sys) is owned by someone other than root it is not retained even if root does the extraction.
If I use tar standalone to archive the directory then the permissions are retained for all directories.
Is this to be expected?
Additionally I've noticed that I cannot archive named pipes at all. The process will attempt to open the pipe and remain hung waiting on a response.
This is the basic code I am using.
$tar = Archive::Tar->new();
$tar->add_files(<"/usr/include/sys/*.h">) or die("Failed $!\n");
$tar->write("files.tar") or die("Failed $!\n");
These are the permissions on the original directories:
ls -ld /usr
drwxr-xr-x 54 root sys 69 Apr 9 2018 /usr
ls -ld /usr/include
drwxr-xr-x 117 root bin 436 Sep 25 22:10 /usr/include
ls -ld /usr/include/sys
drwxr-xr-x 25 root bin 628 Sep 25 22:09 /usr/include/sys
When I extract the archive(as root) generated from my code I see these permissions:
ls -ld usr
drwxr-xr-x 3 root root 512 Jan 20 13:06 usr
ls -ld usr/include
drwxr-xr-x 3 root root 512 Jan 20 13:06 usr/include
ls -ld usr/include/sys
drwxr-xr-x 2 root root 11776 Jan 20 13:07 usr/include/sys
Thank you for any assistance!