.Fn connect
multiple times to change their association.
Datagram sockets may dissolve the association
-by connecting to an invalid address, such as a null address.
+by connecting to an invalid address, such as a null address
+or an address with
+the address family set to AF_UNPSEC (the error
+EAFNOSUPPORT will be harmlessly returned).
.Sh RETURN VALUES
If the connection or binding succeeds, 0 is returned.
Otherwise a -1 is returned, and a more specific error