 [nondet]host_address(+HostName, 
-Address, +Options)
[nondet]host_address(+HostName, 
-Address, +Options)inet or inet6 to limit the results to 
the given family.stream or dgram.true (default false), return the canonical 
host name in the frist answerIn mode (+,-,+) Address is unified to a dict with the following keys:
inet or inet6. The underlying getaddrinfo() 
calls this family. We use domain for 
consistency with
socket_create/2.stream or dgram.canonname(true) is specified on the first 
returned address. Holds the official canonical host name.