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<?php
declare(strict_types=1);
namespace ZipStream\Zip64;
use ZipStream\PackField;
/**
* @internal
*/
abstract class EndOfCentralDirectory
{
private const SIGNATURE = 0x06064b50;
public static function generate(
int $versionMadeBy,
int $versionNeededToExtract,
int $numberOfThisDisk,
int $numberOfTheDiskWithCentralDirectoryStart,
int $numberOfCentralDirectoryEntriesOnThisDisk,
int $numberOfCentralDirectoryEntries,
int $sizeOfCentralDirectory,
int $centralDirectoryStartOffsetOnDisk,
string $extensibleDataSector,
): string {
$recordSize = 44 + strlen($extensibleDataSector); // (length of block - 12) = 44;
/** @psalm-suppress MixedArgument */
return PackField::pack(
new PackField(format: 'V', value: static::SIGNATURE),
new PackField(format: 'P', value: $recordSize),
new PackField(format: 'v', value: $versionMadeBy),
new PackField(format: 'v', value: $versionNeededToExtract),
new PackField(format: 'V', value: $numberOfThisDisk),
new PackField(format: 'V', value: $numberOfTheDiskWithCentralDirectoryStart),
new PackField(format: 'P', value: $numberOfCentralDirectoryEntriesOnThisDisk),
new PackField(format: 'P', value: $numberOfCentralDirectoryEntries),
new PackField(format: 'P', value: $sizeOfCentralDirectory),
new PackField(format: 'P', value: $centralDirectoryStartOffsetOnDisk),
) . $extensibleDataSector;
}
}
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