public static extern IntPtr krb5_get_init_creds_keytab(IntPtr ctx, ref KRB5API.krb5_creds creds, KRB5API.krb5_principal client_principal, IntPtr keytab, int start_time, [MarshalAs(UnmanagedType.LPWStr)] string in_tkt_service, IntPtr options);
public static extern IntPtr krb5_cc_store_cred(IntPtr ctx, IntPtr cc, KRB5API.krb5_creds creds);
public static extern IntPtr krb5_parse_name(IntPtr ctx, [MarshalAs(UnmanagedType.LPWStr)] string szUserName, out KRB5API.krb5_principal client_principal);