ydb/contrib/libs/libevent/patches/2387435-http-ipv6.patch

commit e6bd3e8b0ad99208c704b8e999dee9fd60267214
author: dldmitry
date: 2016-07-04T12:23:34+03:00
revision: 2387435

    libevent: use ipv6 if possible in http client
    __BYPASS_CHECKS__

--- libevent/bufferevent_sock.c	(index)
+++ libevent/bufferevent_sock.c	(working tree)
@@ -482,8 +482,12 @@ bufferevent_connect_getaddrinfo_cb(int result, struct evutil_addrinfo *ai,
 	}

 	/* XXX use the other addrinfos? */
-	bufferevent_socket_set_conn_address_(bev, ai->ai_addr, (int)ai->ai_addrlen);
-	r = bufferevent_socket_connect(bev, ai->ai_addr, (int)ai->ai_addrlen);
+	struct evutil_addrinfo *found_ai = ai;
+	while (found_ai->ai_addr->sa_family != AF_INET6 && found_ai->ai_next != NULL) {
+	    found_ai = found_ai->ai_next;
+	}
+	bufferevent_socket_set_conn_address_(bev, found_ai->ai_addr, (int)found_ai->ai_addrlen);
+	r = bufferevent_socket_connect(bev, found_ai->ai_addr, (int)found_ai->ai_addrlen);
 	if (r < 0)
 		bufferevent_run_eventcb_(bev, BEV_EVENT_ERROR, 0);
 	bufferevent_decref_and_unlock_(bev);