HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
{
UInt64 endPos = 0;
{
RINOK(stream->Seek(0, STREAM_SEEK_END, &endPos));
RINOK(stream->Seek(0, STREAM_SEEK_SET, NULL));
}
_phySizeDefined = true;
bool utf8_OK = true;
if (!_forceCodePage)
{
if (!utf8_OK)
_curCodePage = k_DefaultCodePage;
}
for (;;)
{
CItemEx item;
bool filled;
RINOK(ReadItem2(stream, filled, item));
if (!filled)
break;
_isArc = true;
_items.Add(item);
if (!_forceCodePage)
{
if (utf8_OK) utf8_OK = CheckUTF8(item.Name, item.NameCouldBeReduced);
if (utf8_OK) utf8_OK = CheckUTF8(item.LinkName, item.LinkNameCouldBeReduced);
if (utf8_OK) utf8_OK = CheckUTF8(item.User);
if (utf8_OK) utf8_OK = CheckUTF8(item.Group);
}
RINOK(stream->Seek(item.GetPackSizeAligned(), STREAM_SEEK_CUR, &_phySize));
if (_phySize > endPos)
{
_error = k_ErrorType_UnexpectedEnd;
break;
}
/*
if (_phySize == endPos)
{
_errorMessage = "There are no trailing zero-filled records";
break;
}
*/
if (callback)
{
if (_items.Size() == 1)
{
RINOK(callback->SetTotal(NULL, &endPos));
}
if ((_items.Size() & 0x3FF) == 0)
{
UInt64 numFiles = _items.Size();
RINOK(callback->SetCompleted(&numFiles, &_phySize));
}
}
}
if (!_forceCodePage)
{
if (!utf8_OK)
_curCodePage = k_DefaultCodePage;
}
_openCodePage = _curCodePage;
if (_items.Size() == 0)
{
if (_error != k_ErrorType_OK)
{
_isArc = false;
return S_FALSE;
}
CMyComPtr<IArchiveOpenVolumeCallback> openVolumeCallback;
if (!callback)
return S_FALSE;
callback->QueryInterface(IID_IArchiveOpenVolumeCallback, (void **)&openVolumeCallback);
if (!openVolumeCallback)
return S_FALSE;
NCOM::CPropVariant prop;
if (openVolumeCallback->GetProperty(kpidName, &prop) != S_OK)
return S_FALSE;
if (prop.vt != VT_BSTR)
return S_FALSE;
unsigned len = MyStringLen(prop.bstrVal);
if (len < 4 || MyStringCompareNoCase(prop.bstrVal + len - 4, L".tar") != 0)
return S_FALSE;
}
_isArc = true;
return S_OK;
}
HRESULT CHandler::Open2(IInStream *stream, IArchiveOpenCallback *callback)
{
UInt64 endPos = 0;
{
RINOK(stream->Seek(0, STREAM_SEEK_END, &endPos));
RINOK(stream->Seek(0, STREAM_SEEK_SET, NULL));
}
_phySizeDefined = true;
for (;;)
{
CItemEx item;
bool filled;
RINOK(ReadItem2(stream, filled, item));
if (!filled)
break;
_items.Add(item);
RINOK(stream->Seek(item.GetPackSizeAligned(), STREAM_SEEK_CUR, &_phySize));
if (_phySize > endPos)
{
_errorMessage = kUnexpectedEnd;
break;
}
/*
if (_phySize == endPos)
{
_errorMessage = "There are no trailing zero-filled records";
break;
}
*/
if (callback != NULL)
{
if (_items.Size() == 1)
{
RINOK(callback->SetTotal(NULL, &endPos));
}
if (_items.Size() % 100 == 0)
{
UInt64 numFiles = _items.Size();
RINOK(callback->SetCompleted(&numFiles, &_phySize));
}
}
}
if (_items.Size() == 0)
{
CMyComPtr<IArchiveOpenVolumeCallback> openVolumeCallback;
if (!callback)
return S_FALSE;
callback->QueryInterface(IID_IArchiveOpenVolumeCallback, (void **)&openVolumeCallback);
if (!openVolumeCallback)
return S_FALSE;
NCOM::CPropVariant prop;
if (openVolumeCallback->GetProperty(kpidName, &prop) != S_OK)
return S_FALSE;
if (prop.vt != VT_BSTR)
return S_FALSE;
UString baseName = prop.bstrVal;
baseName = baseName.Right(4);
if (baseName.CompareNoCase(L".tar") != 0)
return S_FALSE;
}
return S_OK;
}
