ObjFW  Diff

/*
 * Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

		/*
		 * FIXME: Handle number of the disk containing ZIP64 end of
		 * central directory record.
		 */
		diskNumber = [_stream readLittleEndianInt32];
		offset64 = [_stream readLittleEndianInt64];
		_lastDiskNumber = [_stream readLittleEndianInt32];
		if (_lastDiskNumber == 0)
			@throw [OFInvalidFormatException exception];
		_lastDiskNumber--;

		if (offset64 < 0 || (OFStreamOffset)offset64 != offset64)
			@throw [OFOutOfRangeException exception];

		seekOrThrowInvalidFormat(self, &diskNumber,
		    (OFStreamOffset)offset64, OFSeekSet);

		if ([_stream readLittleEndianInt32] != 0x06064B50)
			@throw [OFInvalidFormatException exception];

		size = [_stream readLittleEndianInt64];
		if (size < 44)
			@throw [OFInvalidFormatException exception];

		/* version made by */
		[_stream readLittleEndianInt16];
		/* version needed to extract */
		[_stream readLittleEndianInt16];

		if ([_stream readLittleEndianInt32] != _diskNumber)

			@throw [OFInvalidFormatException exception];

		_centralDirectoryDisk = [_stream readLittleEndianInt32];
		_centralDirectoryEntriesInDisk =
		    [_stream readLittleEndianInt64];
		_centralDirectoryEntries = [_stream readLittleEndianInt64];
		_centralDirectorySize = [_stream readLittleEndianInt64];

	entry.versionMadeBy = (entry.versionMadeBy & 0xFF00) | 45;
	entry.minVersionNeeded = (entry.minVersionNeeded & 0xFF00) | 45;
	entry.compressedSize = 0;
	entry.uncompressedSize = 0;
	entry.CRC32 = 0;
	entry.generalPurposeBitFlag |= (seekable ? 0 : (1u << 3)) | (1u << 11);

	entry.of_localFileHeaderOffset = _offset;

	[_stream writeLittleEndianInt32: 0x04034B50];
	[_stream writeLittleEndianInt16: entry.minVersionNeeded];
	[_stream writeLittleEndianInt16: entry.generalPurposeBitFlag];
	[_stream writeLittleEndianInt16: entry.compressionMethod];
	[_stream writeLittleEndianInt16: entry.of_lastModifiedFileTime];

	[_stream writeLittleEndianInt64: _centralDirectoryOffset];

	/* ZIP64 end of central directory locator */
	[_stream writeLittleEndianInt32: 0x07064B50];
	[_stream writeLittleEndianInt32: _diskNumber];
	[_stream writeLittleEndianInt64:
	    _centralDirectoryOffset + _centralDirectorySize];
	[_stream writeLittleEndianInt32: 1];	/* Total number of disks */

	/* End of central directory */
	[_stream writeLittleEndianInt32: 0x06054B50];
	[_stream writeLittleEndianInt16: 0xFFFF];	/* Disk number */
	[_stream writeLittleEndianInt16: 0xFFFF];	/* CD disk */
	[_stream writeLittleEndianInt16: 0xFFFF];	/* CD entries in disk */
	[_stream writeLittleEndianInt16: 0xFFFF];	/* CD entries */