Re: Run-Time Check Failure #2

From:

Ashutosh Bhawasinka <discussion@ashutosh.in>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 31 Jul 2008 18:02:38 +0530

Message-ID:

<uiunJmw8IHA.1180@TK2MSFTNGP03.phx.gbl>

change
TOKEN_PRIVILEGES tokenPrev = {0};
to
TOKEN_PRIVILEGES *tokenPrev = NULL;

Manoj wrote:

Hi I am getting this error

Run-Time Check Failure #2 - Stack around the variable 'tokenPrev' was
corrupted.

I am also paste the my code can anyone tell me how can I fix this
problem ?
//---------------------------------------------------------------------------------------------

BOOL CnewAppDlg::OnInitDialog()
{
    HANDLE hToken = NULL;
    DWORD hTokenLength = 0;
     TOKEN_PRIVILEGES tokenPrev = {0};
     if(OpenProcessToken(GetCurrentProcess(),TOKEN_QUERY,&hToken))
     {

if(!GetTokenInformation(hToken,TokenPrivileges,NULL,0,&hTokenLength))
          {

GetTokenInformation(hToken,TokenPrivileges,(LPVOID)&tokenPrev,hTokenLength,&hTokenLength);

               for(int nCount = 0; nCount < tokenPrev.PrivilegeCount;
nCount++)
               {
                    TCHAR szPath[_MAX_PATH] = _T("");
                    DWORD len = _MAX_PATH;

LookupPrivilegeName(NULL,&tokenPrev.Privileges[nCount].Luid,szPath,&len);
                    TRACE(szPath);
               }
          }
       }
     CloseHandle(hToken);
   }
   return TRUE; // return TRUE unless you set the focus to a control
}
//---------------------------------------------------------------------------------------------

Regards

Manoj Jangid