struct prefix	*p; struct bgpd_addr addr;
struct pt_entry	*pte;
prefix_get(struct rde_aspath *asp, struct bgpd_addr *prefix, int prefixlen){	struct prefix	*p;	struct bgpd_addr addr;	LIST_FOREACH(p, &asp->prefix_h, path_l) {		ENSURE(p->prefix != NULL);		if (p->prefix->prefixlen != prefixlen)			continue;		pt_getaddr(p->prefix, &addr);		if (!prefix_compare(&addr, prefix, prefixlen)) {			ENSURE(p->aspath == asp);			return p;		}	}	return NULL;}