k5_preauth_note_failed
code = k5_preauth_note_failed(ctx, ctx->selected_preauth_type);
k5_preauth_note_failed(krb5_init_creds_context ctx, krb5_preauthtype pa_type);
ret = k5_preauth_note_failed(ctx, pa->pa_type);
k5_preauth_note_failed(ctx, pa_type);