ObjFW  Diff

	if (_stream == nil)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (_atEndOfStream)
		return 0;

	if (length > UINT64_MAX)
	if (sizeof(length) >= sizeof(uint64_t) && length > UINT64_MAX)
		@throw [OFOutOfRangeException exception];

	if ((uint64_t)length > _toRead)
		length = (size_t)_toRead;

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

	[super dealloc];
}

- (void)lowlevelWriteBuffer: (const void *)buffer
		     length: (size_t)length
{
	if ((sizeof(length) >= sizeof(int64_t) && length > INT64_MAX) ||
	if (length > INT64_MAX || INT64_MAX - _bytesWritten < (int64_t)length)
	    INT64_MAX - _bytesWritten < (int64_t)length)
		@throw [OFOutOfRangeException exception];

	[_stream writeBuffer: buffer
		      length: length];

	_bytesWritten += (int64_t)length;
	_CRC32 = of_crc32(_CRC32, buffer, length);