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The Datafile PD-CD 3
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PDCD_3.iso
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internet
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netlite
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NET
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h
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TELNET
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1993-04-01
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1KB
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49 lines
#define LINESIZE 256 /* Length of local editing buffer */
/* Telnet command characters */
#define IAC 255 /* Interpret as command */
#define WILL 251
#define WONT 252
#define DO 253
#define DONT 254
/* Telnet options */
#define TN_TRANSMIT_BINARY 0
#define TN_ECHO 1
#define TN_SUPPRESS_GA 3
#define TN_STATUS 5
#define TN_TIMING_MARK 6
#define NOPTIONS 6
/* Telnet protocol control block */
struct telnet {
struct tcb *tcb;
char state;
#define TS_DATA 0 /* Normal data state */
#define TS_IAC 1 /* Received IAC */
#define TS_WILL 2 /* Received IAC-WILL */
#define TS_WONT 3 /* Received IAC-WONT */
#define TS_DO 4 /* Received IAC-DO */
#define TS_DONT 5 /* Received IAC-DONT */
char local[NOPTIONS]; /* Local option settings */
char remote[NOPTIONS]; /* Remote option settings */
struct session *session; /* Pointer to session structure */
};
#define NULLTN (struct telnet *)0
extern int refuse_echo;
/* In TELNET */
void start_telnet(void);
void unix_send_tel(struct session *, char *, int16);
void send_tel(struct session *, char *, int16);
void tel_input(struct telnet *, struct mbuf *);
void rcv_char(struct tcb *, int16);
void tn_tx(struct tcb *, int16);
void t_state(struct tcb *, char, char);