User`s guide

15
The freeaddrinfo() function frees one or more addrinfo
structures returned by getaddrinfo(), along with any
additional storage associated with those structures.
The getipnodebyname() and getipnodebyaddr() functions
are for node name to address and address to node name
translations for a given address family type.
The getaddrinfo(), getnameinfo(), getipnodebyname()
and getipnodebyaddr() functions are thread-safe.
The freehostent() function frees the memory occupied by the
hostent structure that was obtained by a call to
getipnodebyname() or getipnodebyaddr().
The if_indextoname() function maps an interface index to its
corresponding name.
The if_nametoindex() function maps an interface name to its
corresponding index.
The if_nameindex() function returns all interface names and
indexes.
The if_freenameindex() function frees memory allocated by
if_nameindex().