Temporary directory created before dropping privileges

[virtugon]

When running stenotype via stenographer with the option to drop privileges from root to another user we run into a problem. The temporary packet directory (/tmp/stenographer${NUMBER}/PKT0/${RANDOM}) is created on the filesystem before dropping the privileges, thereby setting the owner and group of the temporary packet directory to root:root. This causes the first attempt of the thread to write a packet to the temporary directory to fail and exit.

A work-around is to start the stenographer watchdog process as the same user, however a simple remedy would be to create the temporary packet directory after dropping the privileges or simply setting the owner and group of that directory to the user and group supplied in the options.