-handle mesh errors more gracefully

diff --git a/src/exit/gnunet-daemon-exit.c b/src/exit/gnunet-daemon-exit.c
index 514554b807d773facf3969bdf875521040797e3b..9e37c069628cbc8892849e05f5a7b5e556ed4311 100644 (file)
--- a/src/exit/gnunet-daemon-exit.c
+++ b/src/exit/gnunet-daemon-exit.c
@@ -523,6 +523,20 @@ send_to_peer_notify_callback (void *cls, size_t size, void *buf)
 
   s->th = NULL;
   tnq = s->head;
+  if (NULL == tnq)
+    return 0;
+  if (0 == size)
+  {
+    s->th = GNUNET_MESH_notify_transmit_ready (tunnel, 
+                                              GNUNET_NO /* corking */, 
+                                              0 /* priority */,
+                                              GNUNET_TIME_UNIT_FOREVER_REL,
+                                              NULL,
+                                              tnq->len,
+                                              &send_to_peer_notify_callback,
+                                              s);
+    return 0;
+  }
   GNUNET_assert (size >= tnq->len);
   memcpy (buf, tnq->payload, tnq->len);
   size = tnq->len;