From: Christian Grothoff <christian@grothoff.org>
Date: Wed, 25 Jan 2017 19:04:32 +0000 (+0100)
Subject: handle ACKs past client down
X-Git-Tag: taler-0.2.1~294
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=602249cc05e5817019e6cf9802dc00ec8fd1e7ce;p=oweals%2Fgnunet.git

handle ACKs past client down
---

diff --git a/src/cadet/gnunet-service-cadet-new_channel.c b/src/cadet/gnunet-service-cadet-new_channel.c
index 29ad732b0..83911f530 100644
--- a/src/cadet/gnunet-service-cadet-new_channel.c
+++ b/src/cadet/gnunet-service-cadet-new_channel.c
@@ -861,9 +861,16 @@ send_ack_to_client (struct CadetChannel *ch,
   struct GNUNET_CADET_LocalAck *ack;
   struct CadetChannelClient *ccc;
 
+  ccc = (GNUNET_YES == to_owner) ? ch->owner : ch->dest;
+  if (NULL == ccc)
+  {
+    /* This can happen if we are just getting ACKs after
+       our local client already disconnected. */
+    GNUNET_assert (GNUNET_YES == ch->destroy);
+    return;
+  }
   env = GNUNET_MQ_msg (ack,
                        GNUNET_MESSAGE_TYPE_CADET_LOCAL_ACK);
-  ccc = (GNUNET_YES == to_owner) ? ch->owner : ch->dest;
   ack->ccn = ccc->ccn;
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Sending CADET_LOCAL_ACK to %s (%s) at ccn %X (%u/%u pending)\n",
@@ -1432,6 +1439,7 @@ cmp_crm_by_next_retry (void *cls,
   return GNUNET_NO;
 }
 
+
 /**
  * Function called once the tunnel has sent one of our messages.
  * If the message is unreliable, simply frees the `crm`. If the