[FR] Support zeroconf for FTP

[bharatvaj]

Hello, thanks for developing this wonderful piece of software!

As Android is essentially a mobile device, the current workflow of entering the IP address in "FTP client" is a little cumbersome, since static IP provisioning is problematic.

Zeroconf provides a way to discover services in the network. This can be utilized to broadcast the FTP service, which makes the "pairing" operation easier.

If this is implemented, after starting the FTP server in Android, compatible clients will present to the user, the devices that are broadcasted, which they can comfortably access.

In a nut shell, the work will be multicasting _ftp._tcp.local in the network after starting the ftp server, so other devices can discover it.

I really believe this will be useful addition to the software. Please share your thoughts on it.

[zhanghai]

Sounds interesting, but not sure how to do this on Android and don't have time to look into it yet.