lookupRecords
Synchronously performs a DNS record lookup for the given @rrname and returns a list of records as #GVariant tuples. See #GResolverRecordType for information on what the records contain for each @record_type.
If the DNS resolution fails, @error (if non-null) will be set to a value from #GResolverError and null will be returned.
If @cancellable is non-null, it can be used to cancel the operation, in which case @error (if non-null) will be set to %G_IO_ERROR_CANCELLED.
Return
a non-empty #GList of #GVariant, or null on error. You must free each of the records and the list when you are done with it. (You can use g_list_free_full() with g_variant_unref() to do this.)
Since
2.34
Parameters
the DNS name to look up the record for
the type of DNS record to look up
a #GCancellable, or null