rtbl
rtbl_t *rtbl;
if ((rtbl = rt_gettable(dst->sa_family)) == NULL)
if ((rt = rt_lookup(rtbl, dst, netmask)) == NULL)
if ((rt = rt_deladdr(rtbl, dst, netmask)) == NULL)
rc = rt_addaddr(rtbl, rt, netmask);
if ((rt = rt_lookup(rtbl, dst, netmask)) == NULL)
rtbl_t *rtbl;
rtbl = rt_gettable(dst->sa_family);
if (rtbl == NULL)
rt = rt_matchaddr(rtbl, dst);
struct rtbl;
typedef struct rtbl rtbl_t;