ObjFW  Check-in [94c326ab78]

 */
@property (readwrite, nonatomic)
    OFZIPArchiveEntryCompressionMethod compressionMethod;

/**
 * @brief The compressed size of the entry's file.
 */
@property (readwrite, nonatomic) unsigned long long compressedSize;

/**
 * @brief The uncompressed size of the entry's file.
 */
@property (readwrite, nonatomic) unsigned long long uncompressedSize;

/**
 * @brief The CRC32 checksum of the entry's file.
 */
@property (readwrite, nonatomic) uint32_t CRC32;

/**

- (void)setCompressionMethod:
    (OFZIPArchiveEntryCompressionMethod)compressionMethod
{
	_compressionMethod = compressionMethod;
}

- (void)setCompressedSize: (unsigned long long)compressedSize
{
	_compressedSize = compressedSize;
}

- (void)setUncompressedSize: (unsigned long long)uncompressedSize
{
	_uncompressedSize = uncompressedSize;
}

- (void)setCRC32: (uint32_t)CRC32
{
	_CRC32 = CRC32;

@end

OF_DIRECT_MEMBERS
@interface OFZIPArchiveFileReadStream: OFStream
{
	OFStream *_stream, *_decompressedStream;
	OFZIPArchiveEntry *_entry;
	unsigned long long _toRead;
	uint32_t _CRC32;
	bool _atEndOfStream;
}

- (instancetype)of_initWithStream: (OFStream *)stream
			    entry: (OFZIPArchiveEntry *)entry;
@end

OF_DIRECT_MEMBERS
@interface OFZIPArchiveFileWriteStream: OFStream
{
	OFStream *_stream;
	uint32_t _CRC32;
@public
	unsigned long long _bytesWritten;
	OFMutableZIPArchiveEntry *_entry;
}

- (instancetype)initWithStream: (OFStream *)stream
			 entry: (OFMutableZIPArchiveEntry *)entry;
@end

	if ((_mode == modeWrite || _mode == modeAppend) &&
	    [_lastReturnedStream isKindOfClass:
	    [OFZIPArchiveFileWriteStream class]]) {
		OFZIPArchiveFileWriteStream *stream =
		    (OFZIPArchiveFileWriteStream *)_lastReturnedStream;

		if (ULLONG_MAX - _offset < stream->_bytesWritten)
			@throw [OFOutOfRangeException exception];

		_offset += stream->_bytesWritten;

		if (stream->_entry != nil) {
			[_entries addObject: stream->_entry];
			[_pathToEntryMap setObject: stream->_entry

		@throw [OFTruncatedDataException exception];

#if SIZE_MAX >= UINT64_MAX
	if (length > UINT64_MAX)
		@throw [OFOutOfRangeException exception];
#endif

	if (length > _toRead)
		length = (size_t)_toRead;

	ret = [_decompressedStream readIntoBuffer: buffer length: length];

	_toRead -= ret;
	_CRC32 = OFCRC32(_CRC32, buffer, ret);

- (size_t)lowlevelWriteBuffer: (const void *)buffer length: (size_t)length
{
#if SIZE_MAX >= INT64_MAX
	if (length > INT64_MAX)
		@throw [OFOutOfRangeException exception];
#endif

	if (ULLONG_MAX - _bytesWritten < length)
		@throw [OFOutOfRangeException exception];

	@try {
		[_stream writeBuffer: buffer length: length];
	} @catch (OFWriteFailedException *e) {
		OFEnsure(e.bytesWritten <= length);

		_bytesWritten += e.bytesWritten;
		_CRC32 = OFCRC32(_CRC32, buffer, e.bytesWritten);

		if (e.errNo == EWOULDBLOCK || e.errNo == EAGAIN)
			return e.bytesWritten;

		@throw e;
	}

	_bytesWritten += length;
	_CRC32 = OFCRC32(_CRC32, buffer, length);

	return length;
}

- (void)close
{
	if (_stream == nil)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (_bytesWritten > UINT64_MAX)
		@throw [OFOutOfRangeException exception];

	[_stream writeLittleEndianInt32: 0x08074B50];
	[_stream writeLittleEndianInt32: _CRC32];
	[_stream writeLittleEndianInt64: (uint64_t)_bytesWritten];
	[_stream writeLittleEndianInt64: (uint64_t)_bytesWritten];

	[_stream release];
	_stream = nil;

	_entry.CRC32 = ~_CRC32;
	_entry.compressedSize = _bytesWritten;
	_entry.uncompressedSize = _bytesWritten;

{
	OFZIPArchiveEntryAttributeCompatibility _versionMadeBy;
	OFZIPArchiveEntryAttributeCompatibility _minVersionNeeded;
	uint16_t _generalPurposeBitFlag;
	OFZIPArchiveEntryCompressionMethod _compressionMethod;
	uint16_t _lastModifiedFileTime, _lastModifiedFileDate;
	uint32_t _CRC32;
	unsigned long long _compressedSize, _uncompressedSize;
	OFString *_fileName;
	OFData *_Nullable _extraField;
	OFString *_Nullable _fileComment;
	uint32_t _startDiskNumber;
	uint16_t _internalAttributes;
	uint32_t _versionSpecificAttributes;
	int64_t _localFileHeaderOffset;

 */
@property (readonly, nonatomic)
    OFZIPArchiveEntryCompressionMethod compressionMethod;

/**
 * @brief The compressed size of the entry's file.
 */
@property (readonly, nonatomic) unsigned long long compressedSize;

/**
 * @brief The uncompressed size of the entry's file.
 */
@property (readonly, nonatomic) unsigned long long uncompressedSize;

/**
 * @brief The CRC32 checksum of the entry's file.
 */
@property (readonly, nonatomic) uint32_t CRC32;

/**

}

- (OFZIPArchiveEntryCompressionMethod)compressionMethod
{
	return _compressionMethod;
}

- (unsigned long long)compressedSize
{
	return _compressedSize;
}

- (unsigned long long)uncompressedSize
{
	return _uncompressedSize;
}

- (uint32_t)CRC32
{
	return _CRC32;

	for (OFZIPArchiveEntry *entry in _archive.entries) {
		void *pool = objc_autoreleasePoolPush();
		OFString *fileName = entry.fileName;
		OFString *outFileName, *directory;
		OFStream *stream;
		OFFile *output;
		unsigned long long written = 0, size = entry.uncompressedSize;
		int8_t percent = -1, newPercent;

		if (!all && ![files containsObject: fileName])
			continue;

		[missing removeObject: fileName];

			[OFStdOut writeString: OF_LOCALIZED(@"adding_file",
			    @"Adding %[file]...",
			    @"file", fileName)];

		entry = [OFMutableZIPArchiveEntry entryWithFileName: fileName];

		size = (isDirectory ? 0 : attributes.fileSize);
		if (size < 0 || size > ULLONG_MAX)
			@throw [OFOutOfRangeException exception];

		entry.compressedSize = size;
		entry.uncompressedSize = size;

		entry.compressionMethod =
		    OFZIPArchiveEntryCompressionMethodNone;
		entry.modificationDate = attributes.fileModificationDate;

		[entry makeImmutable];