2 type {struct if_nameindex}
4 element {struct if_nameindex} {unsigned int} if_index
5 element {struct if_nameindex} {char*} if_name
9 function {unsigned int} if_nametoindex (const char*)
10 function {char*} if_indextoname (unsigned int, char*)
11 function {struct if_nameindex*} if_nameindex (void)
12 function void if_freenameindex (struct if_nameindex*)