const struct GNUNET_MessageHeader *hello;
hello = plugin->env->get_our_hello ();
+ if (NULL == hello)
+ return 0;
hello_size = GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) hello);
msg_size = hello_size + sizeof (struct UDP_Beacon_Message);
sent = 0;
baddr = plugin->ipv4_broadcast_head;
/* just IPv4 */
- while ((baddr != NULL) && (baddr->addrlen == sizeof (struct sockaddr_in)))
+ while ((msg_size > 0) && (baddr != NULL) && (baddr->addrlen == sizeof (struct sockaddr_in)))
{
struct sockaddr_in *addr = (struct sockaddr_in *) baddr->addr;
(const struct sockaddr *) addr,
baddr->addrlen);
if (sent == GNUNET_SYSERR)
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ {
+ if ((ENETUNREACH == errno) || (ENETDOWN == errno))
+ {
+ /* "Network unreachable" or "Network down"
+ *
+ * This indicates that we just do not have network connectivity
+ */
+ GNUNET_log (GNUNET_ERROR_TYPE_BULK | GNUNET_ERROR_TYPE_WARNING,
+ "Network connectivity is down, cannot send beacon!\n");
+ }
+ else
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ }
else
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
&plugin->ipv6_multicast_address,
sizeof (struct sockaddr_in6));
if (sent == GNUNET_SYSERR)
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ {
+ if ((ENETUNREACH == errno) || (ENETDOWN == errno))
+ {
+ /* "Network unreachable" or "Network down"
+ *
+ * This indicates that this system is IPv6 enabled, but does not
+ * have a valid global IPv6 address assigned
+ */
+ GNUNET_log (GNUNET_ERROR_TYPE_BULK | GNUNET_ERROR_TYPE_WARNING,
+ "Network connectivity is down, cannot send beacon!\n");
+ }
+ else
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ }
else
{
LOG (GNUNET_ERROR_TYPE_DEBUG,