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/circuituse.c b/src/or/circuituse.c
index f7f080db13..fc252c9b18 100644
--- a/src/or/circuituse.c
+++ b/src/or/circuituse.c
@@ -1676,7 +1676,7 @@ consider_recording_trackhost(const entry_connection_t *conn,
 
   addressmap_register(conn->socks_request->address, new_address,
                       time(NULL) + options->TrackHostExitsExpire,
-                      ADDRMAPSRC_TRACKEXIT);
+                      ADDRMAPSRC_TRACKEXIT,0,0);
 }
 
 /** Attempt to attach the connection <b>conn</b> to <b>circ</b>, and send a