fix SIGSEGV if dns was slow to start up

1 files changed, 4 insertions, 1 deletions

diff --git a/src/vpn/gnunet-daemon-vpn-dns.c b/src/vpn/gnunet-daemon-vpn-dns.c
index 7d0b38d8c..07e2d6059 100644
--- a/src/vpn/gnunet-daemon-vpn-dns.c
+++ b/src/vpn/gnunet-daemon-vpn-dns.c
@@ -117,9 +117,12 @@ connect_to_service_dns (void *cls,
     GNUNET_assert (dns_connection == NULL);
     dns_connection = GNUNET_CLIENT_connect ("dns", cfg);
     /* This would most likely be a misconfiguration */
-    GNUNET_assert(dns_connection != NULL);
+    GNUNET_assert(NULL != dns_connection);
     GNUNET_CLIENT_receive(dns_connection, &dns_answer_handler, NULL, GNUNET_TIME_UNIT_FOREVER_REL);
 
+    /* We might not yet be connected. Yay, mps. */
+    if (NULL == dns_connection) return;
+
     /* If a packet is already in the list, schedule to send it */
     if (head != NULL)
       GNUNET_CLIENT_notify_transmit_ready(dns_connection,