commit 70da41603ee0dc5ab547c778003b3ed03ce3e6a1
author Yi Kong <yikong@google.com> Tue Jan 05 15:45:07 2016 +0000
committer Yi Kong <yikong@google.com> Wed Jan 06 16:07:56 2016 +0000
tree 2848a30807e7126676fd05674c77b5daef5c40f9
parent 2aa6bea6085f20ea90e6e7e5f31b08a62d9fe240

Fix NetworkInterface cannot discover down links

by refractoring to use getifaddrs to enumerate all network interfaces
and their associated network addresses.

The OpenJDK implementation is incorrect since it does not return all
the interfaces on the machine, rather only interfaces with either IPv4
or IPv6 addresses associated with them. This fix restores the libcore
behaviour.

Note: The patch only fixes the Linux target.

Bug: 26238832
Change-Id: Ia5b2145199a0b1f46b9252f6466e07b104148bf8