CONF_NAK
case CONF_NAK:
ctype = type == CP_RCR_NAK ? CONF_NAK : CONF_REJ;
case CONF_NAK:
int ctype = type == CP_RCR_REJ ? CONF_REJ : CONF_NAK;
CONF_REJ : CONF_NAK;
case CONF_NAK: return "conf-nak";
case CONF_NAK: