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  1. <?php
  2.  
  3. /**
  4.  * ReadBytes trait
  5.  *
  6.  * PHP version 5
  7.  *
  8.  * @category  System
  9.  * @package   SSH
  10.  * @author    Jim Wigginton <terrafrost@php.net>
  11.  * @copyright 2015 Jim Wigginton
  12.  * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
  13.  * @link      http://phpseclib.sourceforge.net
  14.  */
  15.  
  16. namespace phpseclib3\System\SSH\Common\Traits;
  17.  
  18. /**
  19.  * ReadBytes trait
  20.  *
  21.  * @package SSH
  22.  * @author  Jim Wigginton <terrafrost@php.net>
  23.  * @access  public
  24.  */
  25. trait ReadBytes
  26. {
  27.     /**
  28.      * Read data
  29.      *
  30.      * @param int $length
  31.      * @throws \RuntimeException on connection errors
  32.      * @access public
  33.      */
  34.     public function readBytes($length)
  35.     {
  36.         $temp = fread($this->fsock, $length);
  37.         if (strlen($temp) != $length) {
  38.             throw new \RuntimeException("Expected $length bytes; got " . strlen($temp));
  39.         }
  40.         return $temp;
  41.     }
  42. }
  43.