get r11842 closer to what i want

svn:r11851

src/or/dirserv.c

@@ -1852,7 +1852,7 @@ get_possible_sybil_list(const smartlist_t *routers)
         last_addr = ri->addr;
         addr_count = 1;
       } else if (++addr_count > MAX_WITH_SAME_ADDR) {
-        if (!router_digest_is_trusted_dir(ri->cache_info.identity_digest) ||
+        if (!router_addr_is_trusted_dir(ri->addr) ||
             addr_count > MAX_WITH_SAME_ADDR_ON_AUTHORITY)
           digestmap_set(omit_as_sybil, ri->cache_info.identity_digest, ri);
       }

src/or/or.h

@@ -3555,6 +3555,7 @@ int router_digest_is_trusted_dir_type(const char *digest,
                                       authority_type_t type);
 #define router_digest_is_trusted_dir(d) \
   router_digest_is_trusted_dir_type((d), 0)
+int router_addr_is_trusted_dir(uint32_t addr);
 routerlist_t *router_get_routerlist(void);
 void routerlist_reset_warnings(void);
 void routerlist_free(routerlist_t *routerlist);

src/or/routerlist.c

@@ -1783,6 +1783,20 @@ router_digest_is_trusted_dir_type(const char *digest, authority_type_t type)
   return 0;
 }
 
+/** Return true iff <b>addr</b> is the address of one of our trusted
+ * directory authorities. */
+int
+router_addr_is_trusted_dir(uint32_t addr)
+{
+  if (!trusted_dir_servers)
+    return 0;
+  SMARTLIST_FOREACH(trusted_dir_servers, trusted_dir_server_t *, ent,
+    if (ent->addr == addr)
+      return 1;
+    );
+  return 0;
+}
+
 /** If hexdigest is correctly formed, base16_decode it into
  * digest, which must have DIGEST_LEN space in it.
  * Return 0 on success, -1 on failure.