SPARE_INC
ptrsize = (rt->rt_num_spares + SPARE_INC) *
SPARE_INC * sizeof (struct rt_spare));
rt->rt_num_spares += SPARE_INC;
for (rts = rts0, i = SPARE_INC;
ptrsize = (rt->rt_num_spares + SPARE_INC) *
(SPARE_INC * sizeof (struct rt_spare)));
rt->rt_num_spares += SPARE_INC;
for (tmprts = rts, j = SPARE_INC;
ptrsize = (rt->rt_num_spares + SPARE_INC) *
(void) memset(rts, 0, (SPARE_INC *
rt->rt_num_spares += SPARE_INC;
for (tmprts = rts, i = SPARE_INC;
rt->rt_spares = rtmalloc(SPARE_INC * sizeof (struct rt_spare),
rt->rt_num_spares = SPARE_INC;
(void) memset(rt->rt_spares, 0, SPARE_INC * sizeof (struct rt_spare));