tree 54db1c2e6bb2a280567ad2bce35a19bb49bbf890
parent ea8b5eaa671cace08203fbf7b32b739970c23eec
author Mike Yu <yumike@google.com> 1541503207 +0800
committer Mike Yu <yumike@google.com> 1542009628 +0800

Unify DNS error codes reporting to the metrics

gethostbyname and getaddrinfo have their own error codes. Unify
these error codes to be POSIX EAI_*. This change is for better
and even more detailed DNS metrics, and will not impact on
applications.

Also clean up no-op code:
  - res_put_state

Bug: 113916551
Test: system/netd/tests/runtests.sh passed
Change-Id: Id4bbabc8d4dd5f2fdc8fabd38dab753cbb07d691