oops, you're right! Just tried it and it worked fine!
I didn't test it, I assumed it wouldn't work...
thnx
Now I only would like to have a better version (without the libstdc++.so.5 nagging) so I don't have to upload the file every minute... But it works for now!
EDIT:
If nobody is logged in to the TSS (well, it happens sometimes), the program returns a segmentation-fault. So there's always one (the last person who logged out) mentioned in the whoisints.php-file.