How to call kadm5_create_principal

[Gerd Pokorra]

                        Hello,

  I want to add a user-principal with the function kadm5_create_principal.
  How I have to call the function kadm5_create_principal and how is the
  way to create the principal, that I want to add.
  (I get the connection to the KDC (Admin-Server). By calling the function
  kadm5_create_principal I get the error message: Invalid field mask for
  operation)

  Gerd Pokorra
  E-Mail: pokorra at hrz.uni-siegen.de