how can i set server_name_indication extesion for my TLS connection ?

[Roberto Martelloni <roberto martelloni digint it>]

Hello, 

i'm trying to figure out how to use libsoup to write an https proxy. 

What i'm trying to search, without success, is how to handle TLS
extension SERVER_NAME_INDICATION with the libsoup library and then
handle all messages exchange with it. 

Is there in libsoup a set of functions call to do what i do with the
gnutls function "gnutls_server_name_set()" ? 

How can i force libsoup to set server_name_indication for my tls
connection ?

thanks.