ObjFW  Diff

	bool _hasDataDescriptor;
	uint64_t _size;
	uint32_t _CRC32;
	bool _atEndOfStream;
}

- initWithArchiveFile: (OFString*)path
	       offset: (of_offset_t)offset
      localFileHeader: (OFZIPArchive_LocalFileHeader*)localFileHeader;
@end

uint32_t
of_zip_archive_read_field32(uint8_t **data, uint16_t *size)
{
	uint32_t field = 0;

	[super dealloc];
}

- (void)OF_readZIPInfo
{
	void *pool = objc_autoreleasePoolPush();
	uint16_t commentLength;
	of_offset_t offset = -22;
	bool valid = false;

	do {
		@try {
			[_file seekToOffset: offset
				     whence: SEEK_END];
		} @catch (OFSeekFailedException *e) {

		/*
		 * FIXME: Handle number of the disk containing ZIP64 end of
		 * central directory record.
		 */
		[_file readLittleEndianInt32];
		offset64 = [_file readLittleEndianInt64];

		if ((of_offset_t)offset64 != offset64)
			@throw [OFOutOfRangeException exception];

		[_file seekToOffset: (of_offset_t)offset64
			     whence: SEEK_SET];

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

		size = [_file readLittleEndianInt64];
		if (size < 44)

		_diskNumber = [_file readLittleEndianInt32];
		_centralDirectoryDisk = [_file readLittleEndianInt32];
		_centralDirectoryEntriesInDisk = [_file readLittleEndianInt64];
		_centralDirectoryEntries = [_file readLittleEndianInt64];
		_centralDirectorySize = [_file readLittleEndianInt64];
		_centralDirectoryOffset = [_file readLittleEndianInt64];

		if ((of_offset_t)_centralDirectoryOffset !=
		    _centralDirectoryOffset)
			@throw [OFOutOfRangeException exception];
	}

	objc_autoreleasePoolPop(pool);
}

- (void)OF_readEntries
{
	void *pool = objc_autoreleasePoolPush();
	size_t i;

	if ((of_offset_t)_centralDirectoryOffset != _centralDirectoryOffset)
		@throw [OFOutOfRangeException exception];

	[_file seekToOffset: (of_offset_t)_centralDirectoryOffset
		     whence: SEEK_SET];

	_entries = [[OFMutableArray alloc] init];
	_pathToEntryMap = [[OFMutableDictionary alloc] init];

	for (i = 0; i < _centralDirectoryEntries; i++) {
		OFZIPArchiveEntry *entry = [[[OFZIPArchiveEntry alloc]

- (OFStream*)streamForReadingFile: (OFString*)path
{
	OFStream *ret;
	void *pool = objc_autoreleasePoolPush();
	OFZIPArchiveEntry *entry = [_pathToEntryMap objectForKey: path];
	OFZIPArchive_LocalFileHeader *localFileHeader;
	uint64_t offset64;

	if (entry == nil) {
		errno = ENOENT;
		@throw [OFOpenFileFailedException exceptionWithPath: path
							       mode: @"rb"];
	}

	offset64 = [entry OF_localFileHeaderOffset];
	if ((of_offset_t)offset64 != offset64)
		@throw [OFOutOfRangeException exception];

	[_file seekToOffset: (of_offset_t)offset64
		     whence: SEEK_SET];
	localFileHeader = [[[OFZIPArchive_LocalFileHeader alloc]
	    initWithFile: _file] autorelease];

	if (![localFileHeader matchesEntry: entry])
		@throw [OFInvalidFormatException exception];

	return true;
}
@end

@implementation OFZIPArchive_FileStream
- initWithArchiveFile: (OFString*)path
	       offset: (of_offset_t)offset
      localFileHeader: (OFZIPArchive_LocalFileHeader*)localFileHeader
{
	self = [super init];

	@try {
		_file = [[OFFile alloc] initWithPath: path
						mode: @"rb"];