lookup_by_address

Synchronously reverse-resolves address to determine its associated hostname.

If the DNS resolution fails, throws (if non-null) will be set to a value from ResolverError.

If cancellable is non-null, it can be used to cancel the operation, in which case throws (if non-null) will be set to g_io_error_cancelled.

Example: Resolver, lookup by address, sync:

public static int main () {
	try {
		// Output: ``wikipedia-lb.pmtpa.wikimedia.org`` (Wed Oct 24, 20012)
		InetAddress address = new InetAddress.from_string ("208.80.152.201");
		Resolver resolver = Resolver.get_default ();
		string hostname = resolver.lookup_by_address (address, null);
		print ("host: %s\n", hostname);
	} catch (Error e) {
		print ("Error: %s\n", e.message);
	}

	return 0;
}

valac --pkg gio-2.0 GLib.Resolver.lookup_by_address.vala

Parameters:

this	a Resolver
address	the address to reverse-resolve
cancellable	a Cancellable, or null

Returns:

a hostname (either ASCII-only, or in ASCII-encoded form), or null on error.