+static bool bind_to_address(connection_t *c) {
+ char *node;
+ struct addrinfo *ai_list;
+ struct addrinfo *ai_ptr;
+ struct addrinfo ai_hints;
+ int status;
+
+ assert(c != NULL);
+ assert(c->socket >= 0);
+
+ node = NULL;
+ if(!get_config_string(lookup_config(config_tree, "BindToAddress"),
+ &node))
+ return true;
+
+ assert(node != NULL);
+
+ memset(&ai_hints, 0, sizeof(ai_hints));
+ ai_hints.ai_family = c->address.sa.sa_family;
+ /* We're called from `do_outgoing_connection' only. */
+ ai_hints.ai_socktype = SOCK_STREAM;
+ ai_hints.ai_protocol = IPPROTO_TCP;
+
+ ai_list = NULL;
+
+ status = getaddrinfo(node, /* service = */ NULL,
+ &ai_hints, &ai_list);
+ if(status) {
+ free(node);
+ logger(LOG_WARNING, "Error looking up %s port %s: %s",
+ node, "any", gai_strerror(status));
+ return false;
+ }
+ assert(ai_list != NULL);
+
+ status = -1;
+ for(ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) {
+ status = bind(c->socket,
+ ai_list->ai_addr, ai_list->ai_addrlen);
+ if(!status)
+ break;
+ }
+
+
+ if(status) {
+ logger(LOG_ERR, "Can't bind to %s/tcp: %s", node, sockstrerror(sockerrno));
+ } else ifdebug(CONNECTIONS) {
+ logger(LOG_DEBUG, "Successfully bound outgoing "
+ "TCP socket to %s", node);
+ }
+
+ free(node);
+ freeaddrinfo(ai_list);
+
+ return status ? false : true;
+}
+
+int setup_listen_socket(const sockaddr_t *sa) {
+ int nfd;
+ char *addrstr;
+ int option;
+ char *iface;
+
+ nfd = socket(sa->sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
+
+ if(nfd < 0) {
+ ifdebug(STATUS) logger(LOG_ERR, "Creating metasocket failed: %s", sockstrerror(sockerrno));
+ return -1;
+ }
+
+ /* Optimize TCP settings */
+
+ option = 1;
+ setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, (void *)&option, sizeof option);
+
+#if defined(SOL_IPV6) && defined(IPV6_V6ONLY)
+ if(sa->sa.sa_family == AF_INET6)
+ setsockopt(nfd, SOL_IPV6, IPV6_V6ONLY, (void *)&option, sizeof option);