ObjFW  Check-in [75a8f74494]

	unsigned char *buffer;

	if (_lastHeaderOffset == 0)
		return;

	offset = [_stream seekToOffset: 0 whence: OFSeekCurrent];

	if (offset < 0 || offset > UINT32_MAX || _lastHeaderLength < 56)
	if (offset < 0 || (unsigned long long)offset > UINT32_MAX)
		@throw [OFOutOfRangeException exception];

	OFEnsure(_lastHeaderLength >= 56);

	[_stream seekToOffset: _lastHeaderOffset whence: OFSeekSet];
	buffer = OFAllocMemory(1, _lastHeaderLength);
	@try {
		uint16_t tmp16;
		uint32_t tmp32;

	_entry.uncompressedSize = _bytesWritten;
	_entry.compressedSize = _bytesWritten;
	_entry.CRC16 = _CRC16;

	offset = [_stream seekToOffset: 0 whence: OFSeekCurrent];

	if (offset > UINT32_MAX)
	if ((unsigned long long)offset > UINT32_MAX)
		@throw [OFOutOfRangeException exception];

	[_stream seekToOffset: *_lastHeaderOffset whence: OFSeekSet];
	_entry->_dataOffset = (uint32_t)offset;

	OFEnsure([_entry of_writeToStream: _stream
				 encoding: _encoding] == *_lastHeaderLength);