X25_MAX_FAC_LEN
unsigned char facilities[X25_MAX_FAC_LEN];
len += 1 + X25_ADDR_LEN + X25_MAX_FAC_LEN + X25_MAX_CUD_LEN;
len += 1 + X25_MAX_FAC_LEN + X25_MAX_CUD_LEN;
len += 1 + X25_MAX_FAC_LEN;