/usr/share/php/Horde/Compress/Tar.php is in php-horde-compress 2.0.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* This class allows tar files to be read.
*
* Copyright 2002-2013 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @author Michael Cochrane <mike@graftonhall.co.nz>
* @author Michael Slusarz <slusarz@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Compress
*/
class Horde_Compress_Tar extends Horde_Compress_Base
{
/**
*/
public $canDecompress = true;
/**
* Tar file types.
*
* @var array
*/
protected $_types = array(
0x0 => 'Unix file',
0x30 => 'File',
0x31 => 'Link',
0x32 => 'Symbolic link',
0x33 => 'Character special file',
0x34 => 'Block special file',
0x35 => 'Directory',
0x36 => 'FIFO special file',
0x37 => 'Contiguous file'
);
/**
* Tar file flags.
*
* @var array
*/
protected $_flags = array(
'FTEXT' => 0x01,
'FHCRC' => 0x02,
'FEXTRA' => 0x04,
'FNAME' => 0x08,
'FCOMMENT' => 0x10
);
/**
* @return array Tar file data:
* <pre>
* KEY: Position in the array
* VALUES:
* attr - File attributes
* data - Raw file contents
* date - File modification time
* name - Filename
* size - Original file size
* type - File type
* </pre>
*
* @throws Horde_Compress_Exception
*/
public function decompress($data, array $params = array())
{
$data_len = strlen($data);
$position = 0;
$return_array = array();
while ($position < $data_len) {
if (version_compare(PHP_VERSION, '5.5.0-dev', '>=')) {
$info = @unpack('Z100filename/Z8mode/Z8uid/Z8gid/Z12size/Z12mtime/Z8checksum/Ctypeflag/Z100link/Z6magic/Z2version/Z32uname/Z32gname/Z8devmajor/Z8devminor', substr($data, $position));
} else {
$info = @unpack('a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/a8checksum/Ctypeflag/a100link/a6magic/a2version/a32uname/a32gname/a8devmajor/a8devminor', substr($data, $position));
}
if (!$info) {
throw new Horde_Compress_Exception(Horde_Compress_Translation::t("Unable to decompress data."));
}
$position += 512;
$contents = substr($data, $position, octdec($info['size']));
$position += ceil(octdec($info['size']) / 512) * 512;
if ($info['filename']) {
$file = array(
'attr' => null,
'data' => null,
'date' => octdec($info['mtime']),
'name' => trim($info['filename']),
'size' => octdec($info['size']),
'type' => isset($this->_types[$info['typeflag']]) ? $this->_types[$info['typeflag']] : null
);
if (($info['typeflag'] == 0) ||
($info['typeflag'] == 0x30) ||
($info['typeflag'] == 0x35)) {
/* File or folder. */
$file['data'] = $contents;
$mode = hexdec(substr($info['mode'], 4, 3));
$file['attr'] =
(($info['typeflag'] == 0x35) ? 'd' : '-') .
(($mode & 0x400) ? 'r' : '-') .
(($mode & 0x200) ? 'w' : '-') .
(($mode & 0x100) ? 'x' : '-') .
(($mode & 0x040) ? 'r' : '-') .
(($mode & 0x020) ? 'w' : '-') .
(($mode & 0x010) ? 'x' : '-') .
(($mode & 0x004) ? 'r' : '-') .
(($mode & 0x002) ? 'w' : '-') .
(($mode & 0x001) ? 'x' : '-');
}
$return_array[] = $file;
}
}
return $return_array;
}
}
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