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#ifndef PROTOCOLTELNET_H
#define PROTOCOLTELNET_H
#include "protocol.h"
#include "flexbuf.h"
#define ESC "\x1B" /**< A telnet escape code. */
/** Handles all specialized protocol actions related to the telnet protocol.
* This includes setting modes, non-scrollable regions, and so on.
*@author Mike Buland
*/
class ProtocolTelnet : public Protocol
{
public:
ProtocolTelnet();
virtual ~ProtocolTelnet();
bool onNewData();
bool onNewConnection();
char *getLine( bool bFullOnly = true );
char *peekLine( bool bFullOnly = true );
void setEcho( bool bEchoOn = true );
enum
{
termUnInited,
termRaw,
termUnknown,
termVT220,
termXTerm
};
enum
{
SE = 240, // SE: End of subnegotiation parameters.
NOP = 241, // NOP: No operation
DM = 242, // DM: Data mark. Indicates the position of a Synch event within the data stream. This should always be accompanied by a TCP urgent notification.
BRK = 243, // BRK: Break. Indicates that the "break" or "attention" key was hit.
IP = 244, // IP: Suspend, interrupt or abort the process to which the NVT is connected.
AO = 245, // AO: Abort output. Allows the current process to run to completion but do not send its output to the user.
AYT = 246, // AYT: Are you there. Send back to the NVT some visible evidence that the AYT was received.
EC = 247, // EC: Erase character. The receiver should delete the last preceding undeleted character from the data stream.
EL = 248, // EL: Erase line. Delete characters from the data stream back to but not including the previous CRLF.
GA = 249, // GA: Go ahead. Used, under certain circumstances, to tell the other end that it can transmit.
SB = 250, // SB: Subnegotiation of the indicated option follows.
WILL = 251, // WILL: Indicates the desire to begin performing, or confirmation that you are now performing, the indicated option.
WONT = 252, // WONT: Indicates the refusal to perform, or continue performing, the indicated option.
DO = 253, // DO: Indicates the request that the other party perform, or confirmation that you are expecting the other party to perform, the indicated option.
DONT = 254, // DONT: Indicates the demand that the other party stop performing, or confirmation that you are no longer expecting the other party to perform, the indicated option.
IAC = 255 // IAC: Interpret as command
};
enum
{
ECHO = 1, // Explain who'll echo
SUPPRESSGA = 3, // Suppress Go Ahead
TERMTYPE = 24, // Terminal Type
NAWS = 31, // Window size
TERMSPEED = 32, // Terminal Speed
LINEMODE = 34 // Linemode
};
private:
int nTermType;
int nTermWidth;
int nTermHeight;
FlexBuf fbEdited;
bool bEchoOn;
};
#endif
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