IP Protocol support functions like DNS resolution. IP contains support functions for the Internet Protocl (IP). TCP/IP support is in different classes (see [StreamPeerTCP] and [TCP_Server]). IP provides DNS hostname resolution support, both blocking and threaded. Removes all of a "hostname"'s cached references. If no "hostname" is given then all cached IP addresses are removed. Removes a given item "id" from the queue. This should be used to free a queue after it has completed to enable more queries to happen. Returns all of the user's current IPv4 and IPv6 addresses as an array. Returns a queued hostname's IP address, given its queue "id". Returns an empty string on error or if resolution hasn't happened yet (see [method get_resolve_item_status]). Returns a queued hostname's status as a RESOLVER_STATUS_* constant, given its queue "id". Returns a given hostname's IPv4 or IPv6 address when resolved (blocking-type method). The address type returned depends on the TYPE_* constant given as "ip_type". Creates a queue item to resolve a hostname to an IPv4 or IPv6 address depending on the TYPE_* constant given as "ip_type". Returns the queue ID if successful, or RESOLVER_INVALID_ID on error. DNS hostname resolver status: No status. DNS hostname resolver status: Waiting. DNS hostname resolver status: Done. DNS hostname resolver status: Error. Maximum number of concurrent DNS resolver queries allowed, [code]RESOLVER_INVALID_ID[/code] is returned if exceeded. Invalid ID constant. Returned if [code]RESOLVER_MAX_QUERIES[/code] is exceeded. Address type: None. Address type: Internet protocol version 4 (IPv4). Address type: Internet protocol version 6 (IPv6). Address type: Any.