Creates a new GLib::SocketConnectable for connecting to the given
- hostname: The hostname
- port: The port
- Returns: A new GLib::NetworkAddress
Creates a new GLib::NetworkAddress for connecting to the given hostname and port. May fail and raise an error, in case parsing host_and_port fails.
Host_and_port may be in any of a number of recognised formats: an IPv6 address, an IPv4 address, or a domain name (in which case a DNS lookup is performed). Quoting with  is supported for all address types. A port override may be specified in the usual way with a colon. Ports may be given as decimal numbers or symbolic names (in which case an
/etc/serviceslookup is performed).
If no port is specified in host_and_port then default_port will be used as the port number to connect to.
In general, host_and_port is expected to be provided by the user (allowing them to give the hostname, and a port overide if necessary) and default_port is expected to be provided by the application.
- host_and_port: The hostname and optionally a port
- default_port: The default port if not in host_and_port
- Returns: The new GLib::NetworkAddress