+ /* Because we're starting a new bind, any cached name and serv
+ * are now obsolete and need to be cleaned out.
+ * QUESTION: should this be done in acpt_close_socket() instead?
+ */
+ OPENSSL_free(c->cache_accepting_name);
+ c->cache_accepting_name = NULL;
+ OPENSSL_free(c->cache_accepting_serv);
+ c->cache_accepting_serv = NULL;
+ OPENSSL_free(c->cache_peer_name);
+ c->cache_peer_name = NULL;
+ OPENSSL_free(c->cache_peer_serv);
+ c->cache_peer_serv = NULL;
+
+ c->state = ACPT_S_GET_ADDR;
+ break;
+
+ case ACPT_S_GET_ADDR:
+ {
+ int family = AF_UNSPEC;
+ switch (c->accept_family) {
+ case BIO_FAMILY_IPV6:
+ if (1) { /* This is a trick we use to avoid bit rot.
+ * at least the "else" part will always be
+ * compiled.
+ */
+#ifdef AF_INET6
+ family = AF_INET6;
+ } else {
+#endif
+ BIOerr(BIO_F_ACPT_STATE, BIO_R_UNAVAILABLE_IP_FAMILY);
+ goto exit_loop;
+ }
+ break;
+ case BIO_FAMILY_IPV4:
+ family = AF_INET;
+ break;
+ case BIO_FAMILY_IPANY:
+ family = AF_UNSPEC;
+ break;
+ default:
+ BIOerr(BIO_F_ACPT_STATE, BIO_R_UNSUPPORTED_IP_FAMILY);
+ goto exit_loop;
+ }
+ if (BIO_lookup(c->param_addr, c->param_serv, BIO_LOOKUP_SERVER,
+ family, SOCK_STREAM, &c->addr_first) == 0)
+ goto exit_loop;
+ }
+ if (c->addr_first == NULL) {
+ BIOerr(BIO_F_ACPT_STATE, BIO_R_LOOKUP_RETURNED_NOTHING);
+ goto exit_loop;
+ }
+ /* We're currently not iterating, but set this as preparation
+ * for possible future development in that regard
+ */
+ c->addr_iter = c->addr_first;
+ c->state = ACPT_S_CREATE_SOCKET;
+ break;
+
+ case ACPT_S_CREATE_SOCKET:
+ ret = BIO_socket(BIO_ADDRINFO_family(c->addr_iter),
+ BIO_ADDRINFO_socktype(c->addr_iter),
+ BIO_ADDRINFO_protocol(c->addr_iter), 0);
+ if (ret == (int)INVALID_SOCKET) {
+ SYSerr(SYS_F_SOCKET, get_last_socket_error());
+ ERR_add_error_data(4,
+ "hostname=", c->param_addr,
+ " service=", c->param_serv);
+ BIOerr(BIO_F_ACPT_STATE, BIO_R_UNABLE_TO_CREATE_SOCKET);
+ goto exit_loop;
+ }
+ c->accept_sock = ret;
+ b->num = ret;
+ c->state = ACPT_S_LISTEN;
+ break;
+
+ case ACPT_S_LISTEN:
+ {
+ if (!BIO_listen(c->accept_sock,
+ BIO_ADDRINFO_address(c->addr_iter),
+ c->bind_mode)) {
+ BIO_closesocket(c->accept_sock);
+ goto exit_loop;
+ }
+ }