org.apache.commons.net.chargen

## Class CharGenTCPClient

- java.lang.Object
- - org.apache.commons.net.SocketClient
  - - org.apache.commons.net.chargen.CharGenTCPClient

-     public final class CharGenTCPClient
      extends SocketClient

  The CharGenTCPClient class is a TCP implementation of a client for the character generator protocol described in RFC 864. It can also be used for Systat (RFC 866), Quote of the Day (RFC 865), and netstat (port 15). All of these protocols involve connecting to the appropriate port, and reading data from an input stream. The chargen protocol actually sends data until the receiving end closes the connection. All of the others send only a fixed amount of data and then close the connection.

  To use the CharGenTCPClient class, just establish a connection with `connect` and call `getInputStream()` to access the data. Don't close the input stream when you're done with it. Rather, call `disconnect` to clean up properly.

  See Also:
    `CharGenUDPClient`

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `CHARGEN_PORT` The character generator port value of 19 according to RFC 864.
    `static int` | `DEFAULT_PORT` The default chargen port.
    `static int` | `NETSTAT_PORT` The netstat port value of 19.
    `static int` | `QUOTE_OF_DAY_PORT` The quote of the day port value of 17 according to RFC 865.
    `static int` | `SYSTAT_PORT` The systat port value of 11 according to RFC 866.

    - ### Fields inherited from class org.apache.commons.net.SocketClient

      `_defaultPort_, _hostname_, _input_, _output_, _serverSocketFactory_, _socket_, _socketFactory_, _timeout_, connectTimeout, NETASCII_EOL`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `CharGenTCPClient()` The default constructor for CharGenTCPClient.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `InputStream` | `getInputStream()` Returns an InputStream from which the server generated data can be read.

    - ### Methods inherited from class org.apache.commons.net.SocketClient

      `_connectAction_, addProtocolCommandListener, applySocketAttributes, connect, connect, connect, connect, connect, connect, createCommandSupport, disconnect, fireCommandSent, fireReplyReceived, getCharset, getCharsetName, getCommandSupport, getConnectTimeout, getDefaultPort, getDefaultTimeout, getKeepAlive, getLocalAddress, getLocalPort, getProxy, getReceiveBufferSize, getRemoteAddress, getRemotePort, getSendBufferSize, getServerSocketFactory, getSoLinger, getSoTimeout, getTcpNoDelay, isAvailable, isConnected, removeProtocolCommandListener, setCharset, setConnectTimeout, setDefaultPort, setDefaultTimeout, setKeepAlive, setProxy, setReceiveBufferSize, setSendBufferSize, setServerSocketFactory, setSocketFactory, setSoLinger, setSoTimeout, setTcpNoDelay, verifyRemote`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### SYSTAT_PORT

          public static final int SYSTAT_PORT

      The systat port value of 11 according to RFC 866.
      See Also:
        Constant Field Values

    - #### NETSTAT_PORT

          public static final int NETSTAT_PORT

      The netstat port value of 19.
      See Also:
        Constant Field Values

    - #### QUOTE_OF_DAY_PORT

          public static final int QUOTE_OF_DAY_PORT

      The quote of the day port value of 17 according to RFC 865.
      See Also:
        Constant Field Values

    - #### CHARGEN_PORT

          public static final int CHARGEN_PORT

      The character generator port value of 19 according to RFC 864.
      See Also:
        Constant Field Values

    - #### DEFAULT_PORT

          public static final int DEFAULT_PORT

      The default chargen port. It is set to 19 according to RFC 864.
      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### CharGenTCPClient

          public CharGenTCPClient()

      The default constructor for CharGenTCPClient. It merely sets the default port to `DEFAULT_PORT` .

  - ### Method Detail

    - #### getInputStream

          public InputStream getInputStream()

      Returns an InputStream from which the server generated data can be read. You should NOT close the InputStream when you're finished reading from it. Rather, you should call `disconnect` to clean up properly.
      Returns:
        An InputStream from which the server generated data can be read.

Copyright © 2001–2021 The Apache Software Foundation. All rights reserved.