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am e5477f83: Fail queries fast if no DNS servers are configured.

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* commit 'e5477f83b0a639b86d8cbe710f25d9808a8f72af':
  Fail queries fast if no DNS servers are configured.
This commit is contained in:
Lorenzo Colitti 2014-12-02 07:00:47 +00:00 committed by Android Git Automerger
commit 8a94b864bf
1 changed files with 4 additions and 0 deletions
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4
libc/dns/resolv/res_send.c
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@ -402,6 +402,10 @@ res_nsend(res_state statp,
} }
if (statp->nscount == 0) { if (statp->nscount == 0) {
// We have no nameservers configured, so there's no point trying.
// Tell the cache the query failed, or any retries and anyone else asking the same
// question will block for PENDING_REQUEST_TIMEOUT seconds instead of failing fast.
_resolv_cache_query_failed(statp->netid, buf, buflen);
errno = ESRCH; errno = ESRCH;
return (-1); return (-1);
} }