connections are accepted in the stopped state. For a client process,
no input is received in the stopped state.
-???
*** New function network-interface-list.
This function returns a list of network interface names and their
current network addresses.
-???
*** New function get-network-interface-info.
This function returns the network address, hardware address, current
status, and other information about a specific network interface.
-
+++
** New function copy-tree.