DLADM_OVERLAY_PROP_SIZEMAX
uint8_t sho_value[DLADM_OVERLAY_PROP_SIZEMAX];
uint8_t buf[DLADM_OVERLAY_PROP_SIZEMAX];
if (*sizep < DLADM_OVERLAY_PROP_SIZEMAX)
bcopy(oip.oip_value, buf, DLADM_OVERLAY_PROP_SIZEMAX);
uint8_t buf[DLADM_OVERLAY_PROP_SIZEMAX];