src/Biz/Util/Phpsec/Net/SFTP.php

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<?php

/**
 * Pure-PHP implementation of SFTP.
 *
 * PHP version 5
 *
 * Currently only supports SFTPv2 and v3, which, according to wikipedia.org, "is the most widely used version,
 * implemented by the popular OpenSSH SFTP server".  If you want SFTPv4/5/6 support, provide me with access
 * to an SFTPv4/5/6 server.
 *
 * The API for this library is modeled after the API from PHP's {@link http://php.net/book.ftp FTP extension}.
 *
 * Here's a short example of how to use this library:
 * <code>
 * <?php
 *    include 'vendor/autoload.php';
 *
 *    $sftp = new \Biz\Util\Phpsec\Net\SFTP('www.domain.tld');
 *    if (!$sftp->login('username', 'password')) {
 *        exit('Login Failed');
 *    }
 *
 *    echo $sftp->pwd() . "\r\n";
 *    $sftp->put('filename.ext', 'hello, world!');
 *    print_r($sftp->nlist());
 * ?>
 * </code>
 *
 * @category  Net
 *
 * @author    Jim Wigginton <terrafrost@php.net>
 * @copyright 2009 Jim Wigginton
 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
 *
 * @see      http://phpseclib.sourceforge.net
 */

namespace Biz\Util\Phpsec\Net;

/**
 * Pure-PHP implementations of SFTP.
 *
 *
 * @author  Jim Wigginton <terrafrost@php.net>
 */
class SFTP extends SSH2
{
    /**
     * SFTP channel constant.
     *
     * \Biz\Util\Phpsec\Net\SSH2::exec() uses 0 and \Biz\Util\Phpsec\Net\SSH2::read() / \Biz\Util\Phpsec\Net\SSH2::write() use 1.
     *
     * @see \Biz\Util\Phpsec\Net\SSH2::_send_channel_packet()
     * @see \Biz\Util\Phpsec\Net\SSH2::_get_channel_packet()
     */
    const CHANNEL = 0x100;

    /**#@+
     * @access public