PAC_CLIENT_INFO
ret = k5_pac_locate_buffer(context, pac, PAC_CLIENT_INFO, &client_info);
if (k5_pac_locate_buffer(context, pac, PAC_CLIENT_INFO, &client_info) == 0) {
ret = k5_pac_add_buffer(context, pac, PAC_CLIENT_INFO, &client_info, TRUE, &client_info);