Description

   If the standard OpenVMS autologin functionality applies, the
   callback routine returns the user name to the site program using
   the standard argument vector so that the autologin process may
   continue.

   The autologin determination is made before the site prompts for
   the user passwords. The callback routine is applicable only for
   interactive character-cell logins.

                                  NOTE

      Standard OpenVMS policy uses autologin only on directly
      connected or LAT connected character-cell terminals. The
      LGI$ICB_AUTOLOGIN callback routine checks the automatic
      login file (ALF) SYS$SYSTEM:SYSALF.DAT to make the
      determination.

      A DECwindows callout can include a method for doing a
      DECwindows autologin. In that case, the callout routine
      should set the autologin flag to true before returning
      control to LOGINOUT.