upd_ospf_hdr
if (upd_ospf_hdr(buf, nbr->iface))
if (upd_ospf_hdr(buf, iface))
if (upd_ospf_hdr(buf, iface)) {
if (upd_ospf_hdr(buf, nbr->iface))
if (upd_ospf_hdr(buf, iface))
int upd_ospf_hdr(struct ibuf *, struct iface *);