Okay so I'm considering writing a script to use suidperl (yes yes I know, but setuid on a script usually doesn't work, and I have valid reasons, I'm writing crontab(1)). Okay so, when you run the program the program is run as root. So how do you know how invoked you? I'm thinking getlogin, but that can return null so you need a full back and clearly falling back to the example $< does no good and $ENV{USER} is unsafe. So what's my fallback? I was thinking along the lines of discovering the owner of the parent process. But I can only get halfway there (getppid)...

BTW this should ideally rely upon no external programs or modules and be platform indpendent ;-).

--
perl -p -e "s/(?:\w);([st])/'\$1/mg"

In reply to Process owner by belg4mit

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