How would you connect to Oracle as SYS using PL/SQL commands?

For example, as a normal user the statement would appear in my *.pc file as:

EXEC SQL CONNECT :user IDENTIFIED BY assword USING :server_location;

(where I supply the information for :user, assword, and :server_location).

In Oracle 9, I need to make this connection "AS SYSDBA."

How can I do this in my application?