Propagate yes/no/maybe a little farther forward.

svn:r1096

src/or/circuit.c

@@ -222,7 +222,7 @@ circuit_t *circuit_get_newest(connection_t *conn, int must_be_open) {
         exitrouter = router_get_by_addr_port(circ->cpath->prev->addr, circ->cpath->prev->port);
       else /* not open */
         exitrouter = router_get_by_nickname(circ->build_state->chosen_exit);
-      if(!exitrouter || connection_ap_can_use_exit(conn, exitrouter) < 0) {
+      if(!exitrouter || connection_ap_can_use_exit(conn, exitrouter) == ADDR_POLICY_REJECTED) {
         /* can't exit from this router */
         continue;
       }
@@ -305,7 +305,7 @@ int circuit_stream_is_being_handled(connection_t *conn) {
   for(circ=global_circuitlist;circ;circ = circ->next) {
     if(circ->cpath && circ->state != CIRCUIT_STATE_OPEN) {
       exitrouter = router_get_by_nickname(circ->build_state->chosen_exit);
-      if(exitrouter && connection_ap_can_use_exit(conn, exitrouter) >= 0)
+      if(exitrouter && connection_ap_can_use_exit(conn, exitrouter) != ADDR_POLICY_REJECTED)
         if(++num >= MIN_CIRCUITS_HANDLING_STREAM)
           return 1;
     }

src/or/connection_edge.c

@@ -861,7 +861,7 @@ static int connection_exit_begin_conn(cell_t *cell, circuit_t *circ) {
 void connection_exit_connect(connection_t *conn) {
   unsigned char connected_payload[4];
 
-  if(router_compare_to_my_exit_policy(conn) < 0) {
+  if(router_compare_to_my_exit_policy(conn) == ADDR_POLICY_REJECTED) {
     log_fn(LOG_INFO,"%s:%d failed exit policy. Closing.", conn->address, conn->port);
     if(connection_edge_end(conn, END_STREAM_REASON_EXITPOLICY, NULL) < 0)
       log_fn(LOG_WARN,"1: I called connection_edge_end redundantly.");

src/or/onion.c

@@ -269,12 +269,12 @@ static routerinfo_t *choose_good_exit_server(routerlist_t *dir)
         continue; /* Skip everything but APs in CIRCUIT_WAIT */
       switch (connection_ap_can_use_exit(carray[j], dir->routers[i]))
         {
-        case -1:
+        case ADDR_POLICY_REJECTED:
           log_fn(LOG_DEBUG,"%s (index %d) would reject this stream.",
                  dir->routers[i]->nickname, i);
           break; /* would be rejected; try next connection */
-        case 0:
-        case 1:
+        case ADDR_POLICY_ACCEPTED:
+        case ADDR_POLICY_UNKNOWN:
           ++n_supported[i];
           log_fn(LOG_DEBUG,"%s is supported. n_supported[%d] now %d.",
                  dir->routers[i]->nickname, i, n_supported[i]);

src/or/router.c

@@ -295,7 +295,7 @@ int router_compare_to_my_exit_policy(connection_t *conn) {
                          way we can't get a 'maybe' below. */
 
   return router_compare_addr_to_exit_policy(conn->addr, conn->port, 
-                   desc_routerinfo->exit_policy) == ADDR_POLICY_ACCEPTED;
+                   desc_routerinfo->exit_policy);
     
 }