function _setstat($filename, $attr, $recursive)
{
if (!($this->bitmap & SSH2::MASK_LOGIN)) {
return false;
}
$filename = $this->_realpath($filename);
if ($filename === false) {
return false;
}
$this->_remove_from_stat_cache($filename);
if ($recursive) {
$i = 0;
$result = $this->_setstat_recursive($filename, $attr, $i);
$this->_read_put_responses($i);
return $result;
}
// SFTPv4+ has an additional byte field - type - that would need to be sent, as well. setting it to
// SSH_FILEXFER_TYPE_UNKNOWN might work. if not, we'd have to do an SSH_FXP_STAT before doing an SSH_FXP_SETSTAT.
if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($filename), $filename, $attr))) {
return false;
}
/*
"Because some systems must use separate system calls to set various attributes, it is possible that a failure
response will be returned, but yet some of the attributes may be have been successfully modified. If possible,
servers SHOULD avoid this situation; however, clients MUST be aware that this is possible."
-- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.6
*/
$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;
}