INFORMIX-ESQL/C CGI Library

Hi all, Does anyone have information on or a pointer to information on how to access the environment variable cgi_env.remote_user? I'm using the Informix Webkit which has the cgi_env structure defined with the field remote_user among other fields. I can access some of the other fields but can't get to the remote_user field. I believe the field is not getting populated even though it should be. Any help is greatly appreciated. Thanks in advance, Chuck