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authorMaxim Prohorov <prohorov.max@gmail.com>2012-03-13 22:52:39 +0100
committerDaniel Stenberg <daniel@haxx.se>2012-03-13 22:52:39 +0100
commit97386c3c84251ca6a185916b28e61c100a901c1a (patch)
tree4036916a1b22d327b39ee9c222e20e4935bb70d9 /lib
parente25590a2b38e1a2a653c3905cce67545da66c8c3 (diff)
resolve with c-ares: don't resolve IPv6 when not working
If the Curl_ipv6works() function says no, there is no reason to try AAAA names even if libcurl was built with IPv6 support enabled. Bug: http://curl.haxx.se/mail/lib-2012-03/0045.html
Diffstat (limited to 'lib')
-rw-r--r--lib/asyn-ares.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/lib/asyn-ares.c b/lib/asyn-ares.c
index 9f16e39f1..5b760128e 100644
--- a/lib/asyn-ares.c
+++ b/lib/asyn-ares.c
@@ -582,13 +582,22 @@ Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
res->last_status = ARES_ENOTFOUND;
#ifdef ENABLE_IPV6 /* CURLRES_IPV6 */
if(family == PF_UNSPEC) {
- res->num_pending = 2;
+ if(Curl_ipv6works()) {
+ res->num_pending = 2;
+
+ /* areschannel is already setup in the Curl_open() function */
+ ares_gethostbyname((ares_channel)data->state.resolver, hostname,
+ PF_INET, query_completed_cb, conn);
+ ares_gethostbyname((ares_channel)data->state.resolver, hostname,
+ PF_INET6, query_completed_cb, conn);
+ }
+ else {
+ res->num_pending = 1;
- /* areschannel is already setup in the Curl_open() function */
- ares_gethostbyname((ares_channel)data->state.resolver, hostname,
- PF_INET, query_completed_cb, conn);
- ares_gethostbyname((ares_channel)data->state.resolver, hostname,
- PF_INET6, query_completed_cb, conn);
+ /* areschannel is already setup in the Curl_open() function */
+ ares_gethostbyname((ares_channel)data->state.resolver, hostname,
+ PF_INET, query_completed_cb, conn);
+ }
}
else
#endif /* CURLRES_IPV6 */