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-rw-r--r--src/or/rendclient.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/src/or/rendclient.c b/src/or/rendclient.c
index 1038378de1..79714f958e 100644
--- a/src/or/rendclient.c
+++ b/src/or/rendclient.c
@@ -1048,6 +1048,7 @@ rend_client_get_random_intro_impl(const rend_cache_entry_t *entry,
/* Do we need to look up the router or is the extend info complete? */
if (!intro->extend_info->onion_key) {
const node_t *node;
+ extend_info_t *new_extend_info;
if (tor_digest_is_zero(intro->extend_info->identity_digest))
node = node_get_by_hex_id(intro->extend_info->nickname);
else
@@ -1058,8 +1059,18 @@ rend_client_get_random_intro_impl(const rend_cache_entry_t *entry,
smartlist_del(usable_nodes, i);
goto again;
}
- extend_info_free(intro->extend_info);
- intro->extend_info = extend_info_from_node(node);
+ new_extend_info = extend_info_from_node(node);
+ if (!new_extend_info) {
+ log_info(LD_REND, "We don't have a descriptor for the intro-point relay "
+ "'%s'; trying another.",
+ extend_info_describe(intro->extend_info));
+ smartlist_del(usable_nodes, i);
+ goto again;
+ } else {
+ extend_info_free(intro->extend_info);
+ intro->extend_info = new_extend_info;
+ }
+ tor_assert(intro->extend_info != NULL);
}
/* Check if we should refuse to talk to this router. */
if (strict &&