Class DarwinIfnetHook

source code

Walks the global list of interfaces.

The head of the list of network interfaces is a kernel global [1].
The struct we use [2] is just the public part of the data [3]. Addresses
are related to an interface in a N:1 relationship [4]. AF-specific data
is a normal sockaddr struct.

References:
  1:
  https://github.com/opensource-apple/xnu/blob/10.9/bsd/net/dlil.c#L254
  2:
  https://github.com/opensource-apple/xnu/blob/10.9/bsd/net/if_var.h#L528
  3:
  https://github.com/opensource-apple/xnu/blob/10.9/bsd/net/dlil.c#L188
  4:
  https://github.com/opensource-apple/xnu/blob/10.9/bsd/net/if_var.h#L816