Used for my blog entry to describe PEiD vulnerability

peid_vul1.c

// getting the exact size of the section
int getMinSectionSize()
{
   int size = min(VirtualSize, SizeOfRawData)

   // ** if PointerToRawData is negative, overflow will happen here.
   int bound = file_size - PointerToRawData               

   if (size <= bound)      return size;
   else                    size = bound;
   return size;
}