NG_VERSION
binary->header.version = NG_VERSION;
msg.header.version = NG_VERSION;
if (rep->header.version != NG_VERSION) {
(long)rep->header.version, (long)NG_VERSION);
SYSCTL_INT(_net_graph, OID_AUTO, msg_version, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_VERSION, "");
(msg)->header.version = NG_VERSION; \
(rsp)->header.version = NG_VERSION; \
(copy)->header.version = NG_VERSION; \
if (msg->header.version != NG_VERSION) {
if (rep->header.version != NG_VERSION) {
(long)rep->header.version, (long)NG_VERSION);