[AGENT++] Memory corruptions with MibComplexEntry subclass get_next_request

[Reetesh Ranjan]

I have done a simple derivation MibComplexEntry and following is the
derived get_next_request function (as per suggestion by Frank in
another thread from me).

void SDCFsMibHandler::get_next_request(Request * request, int ind)
{
    uint8 lResponse[] = { 1, 2, 3, 4, 5, 6, 7, 8 };

    Vbx vb(request->get_oid(ind));

    vb.set_value(lResponse, sizeof lResponse);

    request->finish(ind, vb);
}

This code is leading to memory corruption. Dmalloc finds an error 67
after function exits (but I am not sure whether because of local vars
destructed or somewhere later in the flow). When I replace the local
variable vb with an allocated one, then similar error comes for heap.
I am trying to do a simple operation of providing a value in the
get-next response.

Here are the class definition and all methods implemented/derived:

class SDCFsMibHandler : public MibComplexEntry
{
public:
    // constructor
    SDCFsMibHandler();

    // destructor
    virtual
    ~SDCFsMibHandler() { }

   // Needed to implement pure virtual functions (but are dummy)
  virtual MibEntry * clone() { return NULL; }

  virtual OidxPtr max_key(void) { return NULL; }

  virtual void get_request(Request *, int) { /* no-op */ }

  virtual int prepare_set_request(Request*, int&) { return SNMP_ERROR_SUCCESS; }

  virtual int undo_set_request(Request*, int&) { return SNMP_ERROR_SUCCESS; }

  virtual void cleanup_set_request(Request*, int&) { }

  // Important derived functions
  virtual void
  get_next_request(Request*, int);

  virtual Oidx find_succ(const Oidx & a, Request * req=NULL);

  virtual int commit_set_request(Request*, int);
}

SDCFsMibHandler::SDCFsMibHandler()
    : MibComplexEntry("1.3.1.4.1.108.1.200.1", READWRITE)
{ }

Oidx SDCFsMibHandler::find_succ(const Oidx & a, Request * req)
{
    Oidx l = a.next_peer();
    return(l);
}

My snmp processing code is lifted from the examples. Could you please
help me with any information on this?

Thanks,
Reetesh