tnbr_find
tnbr = tnbr_find(leconf, af, src);
tnbr = tnbr_find(leconf, pw->af, &pw->addr);
tnbr = tnbr_find(leconf, pw->af, &pw->addr);
if ((xt = tnbr_find(xconf, tnbr->af, &tnbr->addr)) == NULL) {
if ((tnbr = tnbr_find(conf, xt->af, &xt->addr)) == NULL) {
struct tnbr *tnbr_find(struct ldpd_conf *, int, union ldpd_addr *);
t = tnbr_find(conf, af, addr);