Function krb5_sys::krb5_pac_sign

pub unsafe extern fn krb5_pac_sign(context: krb5_context,
                                   pac: krb5_pac,
                                   authtime: krb5_timestamp,
                                   principal: krb5_const_principal,
                                   server_key: *const krb5_keyblock,
                                   privsvr_key: *const krb5_keyblock,
                                   data: *mut krb5_data)
                                   -> krb5_error_code