api to set host name, port

[Narahari 'n' Savitha]

Friends,

I am embedding an ftp server in our code.  I have used BaseUser to set user
configuration.  I am unable to find docs where I can tell ftp server to
listen on

a given hostname (ip has been given host name)

a given port say for example 5000 instead of the default 21.

-Narahari

PS:  I am presuming BaseUser.setHomeDirectory() to be used to determine
where to put the file.