function _mkdir_helper($dir, $attr)
{
if (!$this->_send_sftp_packet(NET_SFTP_MKDIR, pack('Na*a*', strlen($dir), $dir, $attr))) {
return false;
}
$response = $this->_get_sftp_packet();
if ($this->packet_type != NET_SFTP_STATUS) {
throw new \UnexpectedValueException('Expected SSH_FXP_STATUS');
}
if (strlen($response) < 4) {
return false;
}
extract(unpack('Nstatus', Strings::shift($response, 4)));
if ($status != NET_SFTP_STATUS_OK) {
$this->_logError($response, $status);
return false;
}
return true;
}