DHCP_MAX_OPT_SIZE
char mfg[DHCP_MAX_OPT_SIZE + 1], cbuf[DHCP_MAX_OPT_SIZE + 1];
if ((len + 2) < DHCP_MAX_OPT_SIZE) {
char scratch[DHCP_MAX_OPT_SIZE + 1];
if (len > DHCP_MAX_OPT_SIZE)
len = DHCP_MAX_OPT_SIZE;
static uint8_t dhcp_classid[DHCP_MAX_OPT_SIZE + 3];
char scratch[DHCP_MAX_OPT_SIZE + 1];
uint8_t dt_cid[DHCP_MAX_OPT_SIZE];
uint8_t opt_len, mtype, cid[DHCP_MAX_OPT_SIZE], cid_len;
bzero(cid, DHCP_MAX_OPT_SIZE);