Description:add unsupport api print
Team: OTHERS
Feature or Bugfix:Feature
Binary Source:No
PrivateCode(Yes/No):No

Change-Id: If54639f876c6c6d546f36f65a83e3d4ae94a58f0
Reviewed-on: http://mgit-tm.rnd.huawei.com/10522043Tested-by: Npublic jenkins <public_jenkins@notesmail.huawei.com>
Reviewed-by: Ncaoruihong 00546070 <crh.cao@huawei.com>
Reviewed-by: Nshenwei 00579521 <denny.shenwei@huawei.com>

the previous implementations had several deficiencies, the most severe
of which was the inability to report unconfigured interfaces or
interfaces without ipv4 addresses. among the options discussed for
fixing this, using netlink turned out to be the one with the least
cost and most additional advantages. other improvements include:

if_nameindex now avoids duplicates in the list it produces, but still
includes legacy-style interface aliases if any are in use.

getifaddrs now reports hardware addresses and includes the scope_id
for link-local ipv6 addresses in the resulting address.