DTLS1_COOKIE_LENGTH
cookie, DTLS1_COOKIE_LENGTH, cookie_len)
unsigned char cookie[DTLS1_COOKIE_LENGTH];
unsigned char cookie[DTLS1_COOKIE_LENGTH];
unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH];
|| cookie_leni > DTLS1_COOKIE_LENGTH) {
DTLS1_COOKIE_LENGTH,