SQL & PL/SQL

Hi folks;

How to get the name of the user who just miss his connection to the database in a "after serverror" trigger ?
The code of the trigger :

create or replace
TRIGGER TRG_LOGGON_FAILURES 
AFTER SERVERERROR ON DATABASE 
BEGIN
  IF (IS_SERVERERROR(1017)) THEN
  UPDATE utilisateur_ora SET UTO_STA='BLOQUE', UTO_DATE_STATUT=sysdate WHERE UTO_USR_GPL=<var_user>;
  COMMIT;
  END IF;
  
END;