ObjFW  Diff

#include "config.h"

#import "OFTarArchive.h"
#import "OFTarArchiveEntry.h"
#import "OFTarArchiveEntry+Private.h"
#import "OFStream.h"
#import "OFSeekableStream.h"
#import "OFDate.h"
#ifdef OF_HAVE_FILES
# import "OFFile.h"
#endif

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFNotOpenException.h"
#import "OFOutOfRangeException.h"
#import "OFTruncatedDataException.h"
#import "OFWriteFailedException.h"

@interface OFTarArchive_FileReadStream: OFStream
{
	OFTarArchiveEntry *_entry;
	OFStream *_stream;
	OF_KINDOF(OFStream *) _stream;
	uint64_t _toRead;
	bool _atEndOfStream;
}

- initWithStream: (OFStream *)stream
	   entry: (OFTarArchiveEntry *)entry;
- (void)of_skip;

	_stream = nil;

	[super close];
}

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

		[_stream seekToOffset: (of_offset_t)_toRead
			       whence: SEEK_CUR];

		_toRead = 0;

		size = [_entry size];

		if (size % 512 != 0)
			[_stream seekToOffset: 512 - (size % 512)
				       whence: SEEK_CUR];
	} else {
	char buffer[512];
	uint64_t size;
		char buffer[512];
		uint64_t size;

	while (_toRead >= 512) {
		[_stream readIntoBuffer: buffer
			    exactLength: 512];
		_toRead -= 512;
	}
		while (_toRead >= 512) {
			[_stream readIntoBuffer: buffer
				    exactLength: 512];
			_toRead -= 512;
		}

	if (_toRead > 0) {
		[_stream readIntoBuffer: buffer
			    exactLength: (size_t)_toRead];
		_toRead = 0;
	}
		if (_toRead > 0) {
			[_stream readIntoBuffer: buffer
				    exactLength: (size_t)_toRead];
			_toRead = 0;
		}

	size = [_entry size];
		size = [_entry size];

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

@implementation OFTarArchive_FileWriteStream
- initWithStream: (OFStream *)stream
	   entry: (OFTarArchiveEntry *)entry
{