commit 97c9d73a8787e3d8e0a4a4b3445fc5d71f0eb222
author Pierre Imai <imaipi@google.com> Mon Apr 18 12:00:12 2016 +0900
committer Pierre Imai <imaipi@google.com> Thu Apr 21 10:07:26 2016 +0900
tree f7cbbc05cb74a82d714116ac921b9aa37a41282e
parent fff356786f8a3a98c5c29f12bb7e59e6d98076a9

Add new info functions to resolver for use by Netd.

android_net_res_stats_get_info_for_net returns the current name servers, search
domains, parameters and stats for the given network ID.

android_net_res_stats_aggregate provides statistics such as errors counts from
the raw stats data reported by android_net_res_stats_get_info_for_net.

android_net_res_stats_get_usable_servers uses the data returned by
android_net_res_stats_aggregate to determine which of the servers are
considered valid or broken by the resolver.

BUG: 25731675

Change-Id: I6059b68e5e8b809027a4d3135f6081588bee8a7d

libc/dns/resolv/res_send.c

diff --git a/libc/dns/resolv/res_send.c b/libc/dns/resolv/res_send.c
index bfc6e1a..0e30b28 100644
--- a/libc/dns/resolv/res_send.c
+++ b/libc/dns/resolv/res_send.c
@@ -492,7 +492,8 @@
 	    struct __res_params params;
 	    int revision_id = _resolv_cache_get_resolver_stats(statp->netid, &params, stats);
 	    bool usable_servers[MAXNS];
-	    _res_stats_get_usable_servers(&params, stats, statp->nscount, usable_servers);
+	    android_net_res_stats_get_usable_servers(&params, stats, statp->nscount,
+		    usable_servers);
 
 	    for (ns = 0; ns < statp->nscount; ns++) {
 		if (!usable_servers[ns]) continue;