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
#define	AX25TNC	3
	char *name;	/* Name of remote host */
	union {
		struct ftp *ftp;
		struct telnet *telnet;
		struct ax25_cb *ax25_cb;
	} cb;
	int (*parse)();		/* Where to hand typed input when conversing */
	FILE *record;		/* Receive record file */
	char *rfile;		/* Record file name */
	FILE *upload;		/* Send file */
	char *ufile;		/* Upload file name */
	char noecho;		/* Echo flag */
};
#define	NULLSESSION	(struct session *)0
extern unsigned nsessions;
extern struct session *sessions;
extern struct session *current;
struct session *newsession();

extern int16 lport;