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Extraction of .tar, .tar.gz and .tar.bz2

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git-svn-id: file:///svn/phpbb/trunk@4308 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Paul S. Owen 2003-07-21 17:32:42 +00:00
parent 760bf9dbb2
commit 71cc8e79b3
1 changed files with 44 additions and 0 deletions
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44
phpBB/includes/functions_compress.php
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@ -241,6 +241,49 @@ class compress_tar extends compress
function extract($dst)
{
$fzread = ($this->isbz && function_exists('bzread')) ? 'bzread' : (($this->isgz && extension_loaded('zlib')) ? 'gzread' : 'fread');
$header = $data = '';
$size = 0;
while ($buffer = $fzread($this->fp, 512))
{
$tmp = unpack("A6magic", substr($buffer, 257, 6));
if (trim($tmp['magic']) == 'ustar')
{
$tmp = unpack("A100name", $buffer);
$filename = trim($tmp['name']);
$tmp = unpack("Atype", substr($buffer, 156, 1));
$filetype = (int) trim($tmp['type']);
if ($filetype == 5)
{
mkdir($dst . $filename);
continue;
}
else
{
$tmp = unpack("A12size", substr($buffer, 124, 12));
$filesize = octdec((int) trim($tmp['size']));
if (!($fp = fopen($dst . $filename, 'wb')))
{
trigger_error('Could not open file for output');
}
$size = 0;
continue;
}
}
$size += 512;
$length = ($size > $filesize) ? 512 - ($size - $filesize) : 512;
$tmp = unpack("A512data", $buffer);
fwrite($fp, (string) $tmp['data'], $length);
unset($buffer);
}
}
function close()
@ -290,6 +333,7 @@ class compress_tar extends compress
$fzwrite($this->fp, pack("a512", $buffer));
$i += 512;
}
unset($data);
}
}