#include <telnet.h>
Inheritance diagram for PTelnetSocket:
Public Types | |
enum | Command { IAC = 255, DONT = 254, DO = 253, WONT = 252, WILL = 251, SB = 250, GoAhead = 249, EraseLine = 248, EraseChar = 247, AreYouThere = 246, AbortOutput = 245, InterruptProcess = 244, Break = 243, DataMark = 242, NOP = 241, SE = 240, EndOfReccord = 239, AbortProcess = 238, SuspendProcess = 237, EndOfFile = 236 } |
enum | Options { TransmitBinary = 0, EchoOption = 1, ReconnectOption = 2, SuppressGoAhead = 3, MessageSizeOption = 4, StatusOption = 5, TimingMark = 6, RCTEOption = 7, OutputLineWidth = 8, OutputPageSize = 9, CRDisposition = 10, HorizontalTabsStops = 11, HorizTabDisposition = 12, FormFeedDisposition = 13, VerticalTabStops = 14, VertTabDisposition = 15, LineFeedDisposition = 16, ExtendedASCII = 17, ForceLogout = 18, ByteMacroOption = 19, DataEntryTerminal = 20, SupDupProtocol = 21, SupDupOutput = 22, SendLocation = 23, TerminalType = 24, EndOfRecordOption = 25, TACACSUID = 26, OutputMark = 27, TerminalLocation = 28, Use3270RegimeOption = 29, UseX3PADOption = 30, WindowSize = 31, TerminalSpeed = 32, FlowControl = 33, LineModeOption = 34, XDisplayLocation = 35, EnvironmentOption = 36, AuthenticateOption = 37, EncriptionOption = 38, EncryptionOption = 38, ExtendedOptionsList = 255, MaxOptions } |
enum | SubOptionCodes { SubOptionIs = 0, SubOptionSend = 1 } |
Public Member Functions | |
PTelnetSocket () | |
PTelnetSocket (const PString &address) | |
BOOL | Read (void *buf, PINDEX len) |
BOOL | Write (const void *buf, PINDEX len) |
virtual BOOL | Connect (const PString &address) |
virtual BOOL | Accept (PSocket &socket) |
virtual void | OnOutOfBand (const void *buf, PINDEX len) |
BOOL | SendCommand (Command cmd, int opt=0) |
virtual BOOL | SendDo (BYTE option) |
virtual BOOL | SendDont (BYTE option) |
virtual BOOL | SendWill (BYTE option) |
virtual BOOL | SendWont (BYTE option) |
BOOL | SendSubOption (BYTE code, const BYTE *info, PINDEX len, int subCode=-1) |
void | SetOurOption (BYTE code, BOOL state=TRUE) |
void | SetTheirOption (BYTE code, BOOL state=TRUE) |
BOOL | IsOurOption (BYTE code) const |
BOOL | IsTheirOption (BYTE code) const |
void | SetTerminalType (const PString &newType) |
const PString & | GetTerminalType () const |
void | SetWindowSize (WORD width, WORD height) |
void | GetWindowSize (WORD &width, WORD &height) const |
Protected Member Functions | |
void | Construct () |
virtual void | OnDo (BYTE option) |
virtual void | OnDont (BYTE option) |
virtual void | OnWill (BYTE option) |
virtual void | OnWont (BYTE option) |
virtual void | OnSubOption (BYTE code, const BYTE *info, PINDEX len) |
virtual BOOL | OnCommand (BYTE code) |
Protected Attributes | |
OptionInfo | option [MaxOptions] |
PString | terminalType |
WORD | windowWidth |
WORD | windowHeight |
BOOL | debug |
Classes | |
struct | OptionInfo |
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Open a socket to a remote host on the specified port number. This is an "accepting" socket. When a "listening" socket has a pending connection to make, this will accept a connection made by the "connecting" socket created to establish a link.
The port that the socket uses is the one used in the Listen() command of the Note that this function will block until a remote system connects to the port number specified in the "listening" socket.
Reimplemented from PTCPSocket. |
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Connect a socket to a remote host on the specified port number. This is typically used by the client or initiator of a communications channel. This connects to a "listening" socket at the other end of the communications channel. The port number as defined by the object instance construction or the PIPSocket::SetPort() function.
Reimplemented from PIPSocket. |
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Reimplemented from PChannel. |
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Determine if the option on our side is enabled.
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Determine if the option on their side is enabled.
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This callback function is called by the system when it receives an telnet command that it does not do anything with.
The default action displays a message to the PError stream (when
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This callback function is called by the system when it receives a DO request from the remote system. The default action is to send a WILL for options that are understood by the standard TELNET class and a WONT for all others.
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This callback function is called by the system when it receives a DONT request from the remote system. The default action is to disable options that are understood by the standard TELNET class. All others are ignored.
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This is callback function called by the system whenever out of band data from the TCP/IP stream is received. A descendent class may interpret this data according to the semantics of the high level protocol. The TELNET socket uses this for sychronisation.
Reimplemented from PTCPSocket. |
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This callback function is called by the system when it receives a sub-option command from the remote system.
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This callback function is called by the system when it receives a WILL request from the remote system. The default action is to send a DO for options that are understood by the standard TELNET class and a DONT for all others.
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This callback function is called by the system when it receives a WONT request from the remote system. The default action is to disable options that are understood by the standard TELNET class. All others are ignored.
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Low level read from the channel. This function may block until the requested number of characters were read or the read timeout was reached. The GetLastReadCount() function returns the actual number of bytes read. The GetErrorCode() function should be consulted after Read() returns FALSE to determine what caused the failure. The TELNET channel intercepts and escapes commands in the data stream to implement the TELNET protocol.
Reimplemented from PTCPSocket. |
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Send an escaped IAC command. The
Synchronises the TELNET streams, inserts the data mark into outgoing data stream and sends an out of band data to the remote to flush all data in the stream up until the syncronisation command.
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Send DO request.
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Send DONT command.
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Send a sub-option with the information given.
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Send WILL request.
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Send WONT command.
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Set if the option on our side is possible, this does not mean it is set it only means that in response to a DO we WILL rather than WONT.
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Set if the option on their side is desired, this does not mean it is set it only means that in response to a WILL we DO rather than DONT.
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Low level write to the channel. This function will block until the requested number of characters are written or the write timeout is reached. The GetLastWriteCount() function returns the actual number of bytes written. The GetErrorCode() function should be consulted after Write() returns FALSE to determine what caused the failure. The TELNET channel intercepts and escapes commands in the data stream to implement the TELNET protocol. Returns TRUE if at least len bytes were written to the channel.
Reimplemented from PTCPSocket. |
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