':             value = nc_atoi(optarg, strlen(optarg));             if (value < 0) {                 log_stderr("nutcracker: option -s requires a number");                 return NC_ERROR;             }             if (!nc_valid_port(value)) {                 log_stderr("nutcracker: option -s value %d is not a valid "                            "port", value);                 return NC_ERROR;             }              nci->stats_port = (uint00_t)value;             break;          case '