Add public_server_mode function.

src/or/or.h

@@ -4239,6 +4239,7 @@ int authdir_mode_tests_reachability(or_options_t *options);
 int authdir_mode_bridge(or_options_t *options);
 
 int server_mode(or_options_t *options);
+int public_server_mode(or_options_t *options);
 int advertised_server_mode(void);
 int proxy_mode(or_options_t *options);
 void consider_publishable_server(int force);

src/or/router.c

@@ -954,6 +954,15 @@ server_mode(or_options_t *options)
   return (options->ORPort != 0 || options->ORListenAddress);
 }
 
+/** Return true iff we are trying to be a non-bridge server.
+ */
+int
+public_server_mode(or_options_t *options)
+{
+  if (!server_mode(options)) return 0;
+  return (!options->BridgeRelay);
+}
+
 /** Remember if we've advertised ourselves to the dirservers. */
 static int server_is_advertised=0;