Running Netbackup 5.1mp4  on solaris 9.

I need to get some start scripts to check things before my backup runs
on a particular host. I was going to do this with
bpstart_notify.<policyname> to check the status of a log file. If
successfully then continue.

Im wondering what to do if the status of the logfile means i dont want
the backup to run, and then how will this get passed to netbackup in an
exit code.  What can i put in bpstart so it doesnt launch the backup to
tape for that client and actually chucks some error code out through
netbackup to view on job monitor or my daily report?

Anyone tried this?

Cheers