Combine entry_port_cfg_t fields in listener_connection_t

Also, revise the code using these options with this cocci script:

@@
listener_connection_t *conn;
@@
 conn->
+entry_cfg.
\(
 isolation_flags
\|
 session_group
\|
 socks_prefer_no_auth
\|
 ipv4_traffic
\|
 ipv6_traffic
\|
 prefer_ipv6
\|
 cache_ipv4_answers
\|
 cache_ipv6_answers
\|
 use_cached_ipv4_answers
\|
 use_cached_ipv6_answers
\|
 prefer_ipv6_virtaddr
\)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/or/dnsserv.c b/src/or/dnsserv.c
index 7b5068199b..d5039f28b4 100644
--- a/src/or/dnsserv.c
+++ b/src/or/dnsserv.c
@@ -155,8 +155,8 @@ evdns_server_callback(struct evdns_server_request *req, void *data_)
 
   entry_conn->socks_request->listener_type = listener->base_.type;
   entry_conn->dns_server_request = req;
-  entry_conn->isolation_flags = listener->isolation_flags;
-  entry_conn->session_group = listener->session_group;
+  entry_conn->isolation_flags = listener->entry_cfg.isolation_flags;
+  entry_conn->session_group = listener->entry_cfg.session_group;
   entry_conn->nym_epoch = get_signewnym_epoch();
 
   if (connection_add(ENTRY_TO_CONN(entry_conn)) < 0) {