extern int mode;
#define	CMD_MODE	1	/* Command mode */
#define	CONV_MODE	2	/* Converse mode */

/* Session control structure; only one entry is used at a time */
struct session {
	int type;
#define	FREE	0
#define	TELNET	1
#define	FTP	2
	union {
		struct ftp *ftp;
		struct telnet *telnet;
	} cb;
	int (*parse)();	/* Where to hand typed input when conversing */
};
#define	NULLSESSION	(struct session *)NULL
extern struct session sessions[];

extern struct session *current;
extern int16 lport;