Unable to obtain mac address without network connection.Os.networkInterfaces will not return the network card information when there is no network

```
// address.mac
interfaceName = interfaceName || getInterfaceName();
```
```
// getInterfaceName
var item = address.interface('IPv4', interfaceName);
var interfaces = os.networkInterfaces();
```

When there is no network, the network card information will not be returned