From: Nick Mathewson <nickm@torproject.org>
Date: Mon, 12 Nov 2007 15:46:38 +0000 (+0000)
Subject:  r16654@catbus:  nickm | 2007-11-12 10:43:45 -0500
X-Git-Tag: tor-0.2.0.11-alpha~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6deca312a7720c5fa7c9679cd93f90b9536ea8f4;p=thirdparty%2Ftor.git

 r16654@catbus:  nickm | 2007-11-12 10:43:45 -0500
 Add explanatory comment.  Does not fix bug 548.


svn:r12484
---

diff --git a/src/or/routerlist.c b/src/or/routerlist.c
index ad50c2ebda..dbf0bbd3ff 100644
--- a/src/or/routerlist.c
+++ b/src/or/routerlist.c
@@ -3783,6 +3783,10 @@ update_consensus_router_descriptor_downloads(time_t now)
         if (!(ri = router_get_by_digest(rs->identity_digest)) ||
             memcmp(ri->cache_info.signed_descriptor_digest,
                    sd->signed_descriptor_digest, DIGEST_LEN)) {
+          /* We have a descriptor with this digest, but either there is no
+           * entry in routerlist with the same ID (!ri), or there is one,
+           * but the identity digest differs (memcmp).
+           */
           smartlist_add(no_longer_old, sd);
           ++n_in_oldrouters; /* We have it in old_routers. */
         }