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- Tar extraction and compression has changed to be more efficent by making fewer read/write commands.

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git-svn-id: file:///svn/phpbb/trunk@5521 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
David M 2006-02-04 22:29:57 +00:00
parent db48dd0588
commit e64bee53ff
1 changed files with 5 additions and 18 deletions
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23
phpBB/includes/functions_compress.php
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@ -75,7 +75,7 @@ class compress
function add_custom_file($src, $filename)
{
$this->data($filename, implode('', file($src)), false, stat($src));
$this->data($filename, file_get_contents($src), false, stat($src));
return true;
}
@ -468,15 +468,7 @@ class compress_tar extends compress
@chmod("$dst$filename", 0777);
// Grab the file contents
$n = floor($filesize / 512);
for ($i = 0; $i < $n; $i++)
{
fwrite($fp, $fzread($this->fp, 512), 512);
}
if (($filesize % 512) > 0)
{
fwrite($fp, $fzread($this->fp, 512), ($filesize % 512));
}
fwrite($fp, $fzread($this->fp, $filesize + 512 - $filesize % 512), $filesize);
fclose($fp);
}
}
@ -525,10 +517,9 @@ class compress_tar extends compress
// Checksum
$checksum = 0;
for ($i = 0; $i < 512; $i++)
for ($i = 0; $i < 329; $i++)
{
$b = unpack("c1char", substr($header, $i, 1));
$checksum += $b['char'];
$checksum += ord(substr($header, $i, 1));
}
$header = substr_replace($header, pack("a8", sprintf("%07o", $checksum)), 148, 8);
@ -536,12 +527,8 @@ class compress_tar extends compress
if ($stat[7] !== 0 && !$is_dir)
{
$fzwrite($this->fp, $data);
$fzwrite($this->fp, pack('a'.($stat[7] + 512 - $stat[7] % 512), $data));
unset($data);
if ($stat[7] % 512 > 0)
{
$fzwrite($this->fp, str_repeat("\0", 512 - $stat[7] % 512));
}
}
}