Example usage for org.apache.commons.net.ftp FTPCmd PORT

Introduction

In this page you can find the example usage for org.apache.commons.net.ftp FTPCmd PORT.

Prototype

FTPCmd PORT

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Usage

From source file:com.atomicleopard.thundr.ftp.commons.FTP.java

/***
 * A convenience method to send the FTP PORT command to the server,
 * receive the reply, and return the reply code.
 * <p>/*w  w  w.  ja  v  a  2  s . c  o m*/
 * @param host  The host owning the port.
 * @param port  The new port.
 * @return The reply code received from the server.
 * @exception FTPConnectionClosedException
 *      If the FTP server prematurely closes the connection as a result
 *      of the client being idle or some other reason causing the server
 *      to send FTP reply code 421.  This exception may be caught either
 *      as an IOException or independently as itself.
 * @exception IOException  If an I/O error occurs while either sending the
 *      command or receiving the server reply.
 ***/
public int port(InetAddress host, int port) throws IOException {
    int num;
    StringBuilder info = new StringBuilder(24);

    info.append(host.getHostAddress().replace('.', ','));
    num = port >>> 8;
    info.append(',');
    info.append(num);
    info.append(',');
    num = port & 0xff;
    info.append(num);

    return sendCommand(FTPCmd.PORT, info.toString());
}

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