org.apache.commons.net.telnet
Class TelnetCommand

java.lang.Object
  org.apache.commons.net.telnet.TelnetCommand

public final class TelnetCommand
extends Object

The TelnetCommand class cannot be instantiated and only serves as a storehouse for telnet command constants.

Author:

Daniel F. Savarese

See Also:

Telnet, TelnetClient

Field Summary

static int	ABORT Abort code.
static int	AO Abort Output code.
static int	AYT Are You There code.
static int	BREAK Break code.
static int	DM Data mark code.
static int	DO Request to use option code.
static int	DONT Don't use option code.
static int	EC Erase Character code.
static int	EL Erase Line code.
static int	EOF End of file code.
static int	EOR End of record code.
static int	GA Go Ahead code.
static int	IAC Interpret As Command code.
static int	IP Interrupt Process code.
static int	MAX_COMMAND_VALUE The maximum value a command code can have.
static int	NOP No Operation code.
static int	SB Start subnegotiation code.
static int	SE End subnegotiation code.
static int	SUSP Suspend process code.
static int	SYNCH Synchronize code.
static int	WILL Agree to use option code.
static int	WONT Refuse to use option code.

Method Summary

static String	getCommand(int code) Returns the string representation of the telnet protocol command corresponding to the given command code.
static boolean	isValidCommand(int code) Determines if a given command code is valid.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX_COMMAND_VALUE

public static final int MAX_COMMAND_VALUE

The maximum value a command code can have. This value is 255.

See Also:

Constant Field Values

IAC

public static final int IAC

Interpret As Command code. Value is 255 according to RFC 854.

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Constant Field Values

DONT

public static final int DONT

Don't use option code. Value is 254 according to RFC 854.

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Constant Field Values

DO

public static final int DO

Request to use option code. Value is 253 according to RFC 854.

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Constant Field Values

WONT

public static final int WONT

Refuse to use option code. Value is 252 according to RFC 854.

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Constant Field Values

WILL

public static final int WILL

Agree to use option code. Value is 251 according to RFC 854.

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Constant Field Values

SB

public static final int SB

Start subnegotiation code. Value is 250 according to RFC 854.

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Constant Field Values

GA

public static final int GA

Go Ahead code. Value is 249 according to RFC 854.

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Constant Field Values

EL

public static final int EL

Erase Line code. Value is 248 according to RFC 854.

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Constant Field Values

EC

public static final int EC

Erase Character code. Value is 247 according to RFC 854.

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Constant Field Values

AYT

public static final int AYT

Are You There code. Value is 246 according to RFC 854.

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Constant Field Values

AO

public static final int AO

Abort Output code. Value is 245 according to RFC 854.

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Constant Field Values

IP

public static final int IP

Interrupt Process code. Value is 244 according to RFC 854.

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Constant Field Values

BREAK

public static final int BREAK

Break code. Value is 243 according to RFC 854.

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Constant Field Values

DM

public static final int DM

Data mark code. Value is 242 according to RFC 854.

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Constant Field Values

NOP

public static final int NOP

No Operation code. Value is 241 according to RFC 854.

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Constant Field Values

SE

public static final int SE

End subnegotiation code. Value is 240 according to RFC 854.

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Constant Field Values

EOR

public static final int EOR

End of record code. Value is 239.

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Constant Field Values

ABORT

public static final int ABORT

Abort code. Value is 238.

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Constant Field Values

SUSP

public static final int SUSP

Suspend process code. Value is 237.

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Constant Field Values

EOF

public static final int EOF

End of file code. Value is 236.

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Constant Field Values

SYNCH

public static final int SYNCH

Synchronize code. Value is 242.

See Also:

Constant Field Values

Method Detail

getCommand

public static final String getCommand(int code)

Returns the string representation of the telnet protocol command corresponding to the given command code.

Parameters:

code - The command code of the telnet protocol command.

Returns:

The string representation of the telnet protocol command.

isValidCommand

public static final boolean isValidCommand(int code)

Determines if a given command code is valid. Returns true if valid, false if not.

Parameters:

code - The command code to test.

Returns:

True if the command code is valid, false if not.