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