commit 2392290c1887b732fd2309e57ce04ab71b9b4e69 Author: Nick Mathewson nickm@torproject.org Date: Thu Oct 21 11:08:15 2010 -0400

Fix a remaining bug in Robert's bug1859 fix.

When intro->extend_info is created for an introduction point, it only starts out with a nickname, not necessarily an identity digest. Thus, doing router_get_by_digest isn't necessarily safe. --- src/or/rendclient.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/src/or/rendclient.c b/src/or/rendclient.c index ca3f213..1f253c1 100644 --- a/src/or/rendclient.c +++ b/src/or/rendclient.c @@ -810,7 +810,10 @@ rend_client_get_random_intro(const rend_data_t *rend_query) intro = smartlist_get(entry->parsed->intro_nodes, i); /* Do we need to look up the router or is the extend info complete? */ if (!intro->extend_info->onion_key) { - router = router_get_by_digest(intro->extend_info->identity_digest); + if (tor_digest_is_zero(intro->extend_info->identity_digest)) + router = router_get_by_hexdigest(intro->extend_info->nickname); + else + router = router_get_by_digest(intro->extend_info->identity_digest); if (!router) { log_info(LD_REND, "Unknown router with nickname '%s'; trying another.", intro->extend_info->nickname);