ObjFW  Diff

#import "OFWriteFailedException.h"

@interface OFTarArchive_FileReadStream: OFStream <OFReadyForReadingObserving>
{
	OFTarArchiveEntry *_entry;
	OF_KINDOF(OFStream *) _stream;
	uint64_t _toRead;
	bool _atEndOfStream;
	bool _atEndOfStream, _skipped;
}

- (instancetype)of_initWithStream: (OFStream *)stream
			    entry: (OFTarArchiveEntry *)entry;
- (void)of_skip;
@end

	_stream = nil;

	[super close];
}

- (void)of_skip
{
	if (_stream == nil || _toRead == 0)
	if (_stream == nil || _skipped)
		return;

	if ([_stream isKindOfClass: [OFSeekableStream class]] &&
	    _toRead <= INT64_MAX && (of_offset_t)_toRead == (int64_t)_toRead) {
		uint64_t size;

		[_stream seekToOffset: (of_offset_t)_toRead

		size = [_entry size];

		if (size % 512 != 0)
			[_stream readIntoBuffer: buffer
				    exactLength: (size_t)(512 - (size % 512))];
	}

	_skipped = true;
}
@end

@implementation OFTarArchive_FileWriteStream
- (instancetype)of_initWithStream: (OF_KINDOF(OFStream *))stream
			    entry: (OFTarArchiveEntry *)entry
{