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| author | Lorenzo Colitti <lorenzo@google.com> | 2014-11-28 20:03:23 +0900 |
|---|---|---|
| committer | Lorenzo Colitti <lorenzo@google.com> | 2014-12-01 20:03:25 +0000 |
| commit | e5477f83b0a639b86d8cbe710f25d9808a8f72af (patch) | |
| tree | 5928315c3044dd857e1c30c435135d5bb6d3309b /libc/stdio/stdio_ext.cpp | |
| parent | 432f645887466ed7099addb20fa8915c8a29fcab (diff) | |
Fail queries fast if no DNS servers are configured.
When no DNS servers are configured (and thus there is no chance
that the DNS query will suceed), res_nsend returns early, but
it does not tell the cache that the query has failed.
Therefore, if the caller retries the query, it will block for
PENDING_REQUEST_TIMEOUT (= 20 seconds) waiting for the "existing
query" (which isn't actually doing anything) to complete.
Bug: 18240188
Bug: 18327075
Change-Id: I0df13ff4a17ee65e640be96695a3af31b020963a
Diffstat (limited to 'libc/stdio/stdio_ext.cpp')
0 files changed, 0 insertions, 0 deletions