Merge branch 'maint-0.3.3'

2 files changed, 10 insertions, 3 deletions

diff --git a/src/or/directory.c b/src/or/directory.c
index 3e8d5ae9cf..c7da804909 100644
--- a/src/or/directory.c
+++ b/src/or/directory.c
@@ -1815,9 +1815,10 @@ directory_send_command(dir_connection_t *conn,
       tor_assert(payload);
       httpcommand = "POST";
       url = tor_strdup("/tor/");
-      if (why) {
-        smartlist_add_asprintf(headers, "X-Desc-Gen-Reason: %s\r\n", why);
+      if (!why) {
+        why = "for no reason at all";
       }
+      smartlist_add_asprintf(headers, "X-Desc-Gen-Reason: %s\r\n", why);
       break;
     }
     case DIR_PURPOSE_UPLOAD_VOTE:
diff --git a/src/or/router.c b/src/or/router.c
index ea65977882..3879863e82 100644
--- a/src/or/router.c
+++ b/src/or/router.c
@@ -1931,7 +1931,7 @@ static routerinfo_t *desc_routerinfo = NULL;
 static extrainfo_t *desc_extrainfo = NULL;
 /** Why did we most recently decide to regenerate our descriptor?  Used to
  * tell the authorities why we're sending it to them. */
-static const char *desc_gen_reason = NULL;
+static const char *desc_gen_reason = "uninitialized reason";
 /** Since when has our descriptor been "clean"?  0 if we need to regenerate it
  * now. */
 static time_t desc_clean_since = 0;
@@ -2555,6 +2555,9 @@ router_rebuild_descriptor(int force)
   desc_clean_since = time(NULL);
   desc_needs_upload = 1;
   desc_gen_reason = desc_dirty_reason;
+  if (BUG(desc_gen_reason == NULL)) {
+    desc_gen_reason = "descriptor was marked dirty earlier, for no reason.";
+  }
   desc_dirty_reason = NULL;
   control_event_my_descriptor_changed();
   return 0;
@@ -2611,6 +2614,9 @@ void
 mark_my_descriptor_dirty(const char *reason)
 {
   const or_options_t *options = get_options();
+  if (BUG(reason == NULL)) {
+    reason = "marked descriptor dirty for unspecified reason";
+  }
   if (server_mode(options) && options->PublishServerDescriptor_)
     log_info(LD_OR, "Decided to publish new relay descriptor: %s", reason);
   desc_clean_since = 0;