? on triggers and accessing env. variables

Informix community, We want to use triggers to implement audit trails of database changes. Our problem is that some applications run as a database "superuser" instead of the actual user, therefore the USER variable available within the trigger grammar contains the db superuser name instead of the name of the real user. As anyone come up with a way to insert into an audit table the value of a shell environment variable? Thanks, Ken Evilsizor CIS 4000 Executive Park Dr. Cincinnati, OH 45241