public function ArchiveTar::_writeLongHeader in Zircon Profile 8
Same name and namespace in other branches
- 8.0 core/lib/Drupal/Core/Archiver/ArchiveTar.php \Drupal\Core\Archiver\ArchiveTar::_writeLongHeader()
Parameters
string $p_filename:
Return value
bool
2 calls to ArchiveTar::_writeLongHeader()
- ArchiveTar::_writeHeader in core/
lib/ Drupal/ Core/ Archiver/ ArchiveTar.php - ArchiveTar::_writeHeaderBlock in core/
lib/ Drupal/ Core/ Archiver/ ArchiveTar.php
File
- core/
lib/ Drupal/ Core/ Archiver/ ArchiveTar.php, line 1615
Class
Namespace
Drupal\Core\ArchiverCode
public function _writeLongHeader($p_filename) {
$v_size = sprintf("%11s ", DecOct(strlen($p_filename)));
$v_typeflag = 'L';
$v_linkname = '';
$v_magic = '';
$v_version = '';
$v_uname = '';
$v_gname = '';
$v_devmajor = '';
$v_devminor = '';
$v_prefix = '';
$v_binary_data_first = pack("a100a8a8a8a12a12", '././@LongLink', 0, 0, 0, $v_size, 0);
$v_binary_data_last = pack("a1a100a6a2a32a32a8a8a155a12", $v_typeflag, $v_linkname, $v_magic, $v_version, $v_uname, $v_gname, $v_devmajor, $v_devminor, $v_prefix, '');
// ----- Calculate the checksum
$v_checksum = 0;
// ..... First part of the header
for ($i = 0; $i < 148; $i++) {
$v_checksum += ord(substr($v_binary_data_first, $i, 1));
}
// ..... Ignore the checksum value and replace it by ' ' (space)
for ($i = 148; $i < 156; $i++) {
$v_checksum += ord(' ');
}
// ..... Last part of the header
for ($i = 156, $j = 0; $i < 512; $i++, $j++) {
$v_checksum += ord(substr($v_binary_data_last, $j, 1));
}
// ----- Write the first 148 bytes of the header in the archive
$this
->_writeBlock($v_binary_data_first, 148);
// ----- Write the calculated checksum
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
$v_binary_data = pack("a8", $v_checksum);
$this
->_writeBlock($v_binary_data, 8);
// ----- Write the last 356 bytes of the header in the archive
$this
->_writeBlock($v_binary_data_last, 356);
// ----- Write the filename as content of the block
$i = 0;
while (($v_buffer = substr($p_filename, $i++ * 512, 512)) != '') {
$v_binary_data = pack("a512", "{$v_buffer}");
$this
->_writeBlock($v_binary_data);
}
return true;
}