Just a Question Regarding unix and PHP today.

What I am doing on my PHP is using the Unix system to untar a tarred file.

exec("tar -xzf foo.tar.gz");

Generally everything works fine until I run into this particular foo.tar.gz, which has a file system as follows:

Applications/
Library/
Systems/

After running the tar command, it seems that the file permissions get changed to 644 (instead of 755).

This causes Permission denied (errno 13) and therefore disabling most of my code. (I'm guessing from lack of privileges)

Any way I can stop this tar command completely ruining my permissions?

Thanks.

Oh and this seems to only happen when I have a foo.tar.gz file that Has this particular file system. Anything else and I'm good.