static void chap_respond(struct chap_client_state *cs, int id,
unsigned char *pkt, int len);
static void chap_handle_status(struct chap_client_state *cs, int code, int id,
static void chap_respond(struct chap_client_state *cs, int id,
unsigned char *pkt, int len);
static void chap_handle_status(struct chap_client_state *cs, int code, int id,