telnet

Documentation

Index

• Constants
• type TelnetClient
  • func (tc *TelnetClient) Close()
  • func (tc *TelnetClient) Dial() (err error)
  • func (tc *TelnetClient) Execute(name string, args ...string) (stdout []byte, err error)
  • func (tc *TelnetClient) ReadByte() (b byte, err error)
  • func (tc *TelnetClient) ReadUntil(data *[]byte, delim byte) (n int, err error)
  • func (tc *TelnetClient) ReadUntilBanner() (output []byte, err error)
  • func (tc *TelnetClient) ReadUntilPrompt(process func(data []byte) bool) (output []byte, err error)
  • func (tc *TelnetClient) SkipBytes(n int) error
  • func (tc *TelnetClient) Write(data []byte) (n int, err error)

Constants

const (
	// IAC interpret as command
	IAC = 255
	// SB is subnegotiation of the indicated option follows
	SB = 250
	// SE is end of subnegotiation parameters
	SE = 240
	// WILL indicates the desire to begin
	WILL = 251
	// WONT indicates the refusal to perform,
	// continue performing, the indicated option
	WONT = 252
	// DO indicates the request that the other
	// party perform, or confirmation that you are
	// expecting the other party to perform, the indicated option
	DO = 253
	// 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
	DONT = 254
)

Types

type TelnetClient

type TelnetClient struct {
	Login     string
	Password  string
	Address   string
	Port      string
	Timeout   time.Duration
	Verbose   bool
	LogWriter *bufio.Writer
	// contains filtered or unexported fields
}

TelnetClient is basic descriptor

func (*TelnetClient) Close

func (tc *TelnetClient) Close()

func (*TelnetClient) Dial

func (tc *TelnetClient) Dial() (err error)

Dial does open connect to telnet server

func (*TelnetClient) Execute

func (tc *TelnetClient) Execute(
	name string,
	args ...string,
) (stdout []byte, err error)

Execute sends command on remote server and returns whole output

func (*TelnetClient) ReadByte

func (tc *TelnetClient) ReadByte() (b byte, err error)

ReadByte receives byte from remote server, avoiding commands

func (*TelnetClient) ReadUntil

func (tc *TelnetClient) ReadUntil(data *[]byte, delim byte) (n int, err error)

ReadUntil reads bytes until a specific symbol. Delimiter character will be written to result buffer

func (*TelnetClient) ReadUntilBanner

func (tc *TelnetClient) ReadUntilBanner() (output []byte, err error)

ReadUntilBanner reads until banner, i.e. whole output from command

func (*TelnetClient) ReadUntilPrompt

func (tc *TelnetClient) ReadUntilPrompt(
	process func(data []byte) bool,
) (output []byte, err error)

ReadUntilPrompt reads data until process function stops. If process function returns true, reading will be stopped Process function give chunk of line i.e. from start of line to last white space or whole line, if next line delimiter is found

func (*TelnetClient) SkipBytes

func (tc *TelnetClient) SkipBytes(n int) error

SkipBytes skip a number of bytes (typically, sent command echo)

func (*TelnetClient) Write

func (tc *TelnetClient) Write(data []byte) (n int, err error)

Write sends raw data to remove telnet server