Refactor addressmap_match_superdomains and representation of wildcards

In this new representation for wildcarded addresses, there are no
longer any 'magic addresses': rather, "a.b c.d", "*.a.b c.d" and
"*.a.b *.c.d" are all represented by a mapping from "a.b" to "c.d". we
now distinguish them by setting bits in the addressmap_entry_t
structure, where src_wildcard is set if the source address had a
wildcard, and dst_wildcard is set if the target address had a
wildcard.

This lets the case where "*.a.b *.c.d" or "*.a.b c.d" remap the
address "a.b" get handled trivially, and lets us simplify and improve
the addressmap_match_superdomains implementation: we can now have it
run in O(parts of address) rather than O(entries in addressmap).

1 files changed, 1 insertions, 1 deletions

diff --git a/src/or/control.c b/src/or/control.c
index f852659983..ce37aca5a6 100644
--- a/src/or/control.c
+++ b/src/or/control.c
@@ -1331,7 +1331,7 @@ handle_control_mapaddress(control_connection_t *conn, uint32_t len,
           smartlist_add(reply, ans);
         }
       } else {
-        addressmap_register(from, tor_strdup(to), 1, ADDRMAPSRC_CONTROLLER);
+        addressmap_register(from, tor_strdup(to), 1, ADDRMAPSRC_CONTROLLER,0,0);
         tor_snprintf(ans, anslen, "250-%s", line);
         smartlist_add(reply, ans);
       }