tree 85acbd556d21ef44361b56b4b117b734412c8e21
parent b82532d11a301370c14f77f2e56dee11f8bfa971
author Lorenzo Colitti <lorenzo@google.com> 1317264458 -0700
committer Lorenzo Colitti <lorenzo@google.com> 1317274688 -0700

Send both A and AAAA queries if all probes fail.

AI_ADDRCONFIG is currently implemented by trying to connect
to well-known addresses in order to see if IPv4 and/or IPv6
connectivity is available.

In some cases (e.g., walled gardens with no global
connectivity) both probes can fail. If this happens,
query for both IPv4 and IPv6 addresses instead of doing
nothing and failing the query.

Bug: 5284168
Change-Id: I4e3a69ea86fb6d839a6bd31236b98da81e5cbf45