45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
#define LINESIZE 256 /* Length of local editing buffer */
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/* Telnet command characters */
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#define IAC 255 /* Interpret as command */
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#define WILL 251
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#define WONT 252
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#define DO 253
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#define DONT 254
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/* Telnet options */
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#define TN_TRANSMIT_BINARY 0
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#define TN_ECHO 1
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#define TN_SUPPRESS_GA 3
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#define TN_STATUS 5
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#define TN_TIMING_MARK 6
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#define NOPTIONS 6
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/* Telnet protocol control block */
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struct telnet {
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struct tcb *tcb;
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char state;
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#define TS_DATA 0 /* Normal data state */
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#define TS_IAC 1 /* Received IAC */
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#define TS_WILL 2 /* Received IAC-WILL */
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#define TS_WONT 3 /* Received IAC-WONT */
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#define TS_DO 4 /* Received IAC-DO */
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#define TS_DONT 5 /* Received IAC-DONT */
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char local[NOPTIONS]; /* Local option settings */
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char remote[NOPTIONS]; /* Remote option settings */
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#ifdef UNIX
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struct mbuf *inbuf; /* ptr to buffer holding excess rcvd chars */
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struct mbuf *outbuf; /* ptr to buffer holding excess to-send chars */
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int fd; /* file descriptor of pty */
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#endif
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struct session *session; /* Pointer to session structure */
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};
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#define NULLTN (struct telnet *)0
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extern int refuse_echo;
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struct telnet *open_telnet();
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int send_tel();
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