mrt_extract_prefix
if (mrt_extract_prefix(msg, AID_INET, &r->prefix,
if (mrt_extract_prefix(msg, AID_INET6, &r->prefix,
if (mrt_extract_prefix(msg, aid, &r->prefix,
int mrt_extract_prefix(struct ibuf *, uint8_t, struct bgpd_addr *,
if (mrt_extract_prefix(msg, aid, &r->prefix, &r->prefixlen,