for(node = node_tree->head; node; node = node->next) {
n = node->data;
- if(n == myself || !digest_active(&n->indigest))
+ if(n == myself || !n->status.reachable || !digest_active(&n->indigest))
continue;
if(try_mac(n, pkt)) {
sockaddr_t from;
socklen_t fromlen = sizeof from;
node_t *n;
+ int len;
- pkt.len = recvfrom(sock, (char *) &pkt.seqno, MAXSIZE, 0, &from.sa, &fromlen);
+ len = recvfrom(sock, (char *) &pkt.seqno, MAXSIZE, 0, &from.sa, &fromlen);
- if(pkt.len < 0) {
+ if(len <= 0 || len > MAXSIZE) {
if(!sockwouldblock(sockerrno))
logger(LOG_ERR, "Receiving packet failed: %s", sockstrerror(sockerrno));
return;
}
+ pkt.len = len;
+
sockaddrunmap(&from); /* Some braindead IPv6 implementations do stupid things. */
n = lookup_node_udp(&from);