complain early if we get an unrecognized nickname from

bob's rend service descriptor


svn:r1482

src/or/connection_edge.c

@@ -777,12 +777,16 @@ circuit_get_open_circ_or_launch(connection_t *conn,
 
     if(desired_circuit_purpose == CIRCUIT_PURPOSE_C_INTRODUCING) {
       /* need to pick an intro point */
-      exitname = rend_get_random_intro(conn->rend_query);
+      exitname = rend_client_get_random_intro(conn->rend_query);
       if(!exitname) {
         log_fn(LOG_WARN,"Couldn't get an intro point for '%s'. Closing conn.",
                conn->rend_query);
         return -1;
       }
+      if(!router_get_by_nickname(exitname)) {
+        log_fn(LOG_WARN,"Advertised intro point '%s' is not known. Closing.", exitname);
+        return -1;
+      }
       log_fn(LOG_INFO,"Chose %s as intro point for %s.", exitname, conn->rend_query);
     }
 

src/or/or.h

@@ -1046,7 +1046,7 @@ int rend_client_receive_rendezvous(circuit_t *circ, const char *request, int req
 void rend_client_desc_fetched(char *query, int success);
 
 int rend_cmp_service_ids(char *one, char *two);
-char *rend_get_random_intro(char *query);
+char *rend_client_get_random_intro(char *query);
 int rend_parse_rendezvous_address(char *address);
 
 int rend_client_send_establish_rendezvous(circuit_t *circ);

src/or/rendclient.c

@@ -208,7 +208,7 @@ int rend_cmp_service_ids(char *one, char *two) {
 /* return a pointer to a nickname for a random introduction
  * point of query. return NULL if error.
  */
-char *rend_get_random_intro(char *query) {
+char *rend_client_get_random_intro(char *query) {
   const char *descp;
   int desc_len;
   int i;