The potential risk of shape.importfromwkt()

[wangxiya]

OLE2A(str) has limit of length of str, it is 4k, when I import a multipolygon from wkt, Sometime the length of wkt will break 4k。

code：
STDMETHODIMP CShape::ImportFromWKT(BSTR Serialized, VARIANT_BOOL *retVal)
{
AFX_MANAGE_STATE(AfxGetStaticModuleState())
*retVal = VARIANT_FALSE;

USES_CONVERSION;
CString ser = OLE2A(Serialized);

OGRGeometry* oGeom = NULL;
char* buffer = ser.GetBuffer();

suggest：
char* pBuf = _com_util::ConvertBSTRToString(Serialized);

char *pszBuffBack = pBuf;

OGRGeometry* oGeom = NULL;
OGRErr err = OGRGeometryFactory::createFromWkt(&pBuf, NULL, &oGeom);
delete[] pszBuffBack;	

[pmeems]

Thanks for taking the time to report this.

You can make a pull request against the develop branch.
We will investigate it and merge it.