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#include "mac.h" 

// ##################################################################
// Getting MAC Address via popen() within C++-program in Windows 2000
// ##################################################################

#define MAC_ADDRESS_SIZE   17
const char  must_be_deleted = '\r';


// =====================================
vector<vector<string> > get_mac_via_popen ()
{
const string   command_line = "ipconfig /all";
const string   delim_str (": ");
const string   str_physical_address ("Physical Address");
vector<string> out_result;
vector<string> err_result;
vector<string> physical_address_result;
vector<vector<string> > ret_value;

bool    ret_bool_code = popen_cplusplus_wrapper (command_line, out_result, err_result);

  if (!ret_bool_code)      return vector<vector<string> >();
  if (!err_result.empty ())   return vector<vector<string> >();
  if (out_result.empty ()) return vector<vector<string> >();

string tmp_string;
  for (unsigned int i = 0; i < out_result.size(); i++)
  {
    if (!(
      (out_result[i][0] == ' ')
      ||
      (out_result[i][0] == '\t')
      ||
      (out_result[i][0] == '\r')
      ||
      (out_result[i][0] == '\0')
    )
       )
    {
      tmp_string = out_result[i];
      if ((*tmp_string.rbegin()) == '\r')
      {
        tmp_string = tmp_string.substr (0, tmp_string.size() - 1);
      }
    }

    if (!(out_result[i].find (str_physical_address) == string::npos))
    {
      ret_value.push_back (vector<string> ());

      string tmp2_string (out_result[i]);
      const string::size_type find_index = tmp2_string.find_last_of (delim_str);

      if (find_index == string::npos)  continue;

      // ---------------------
      tmp2_string = tmp2_string.substr(find_index + delim_str.size() - 1, MAC_ADDRESS_SIZE);
      assert (tmp2_string.size() == MAC_ADDRESS_SIZE);

      ret_value.rbegin()->push_back (tmp2_string);
      assert (ret_value.rbegin()->rbegin()->size() > 0);

      ret_value.rbegin()->push_back (tmp_string);
      tmp_string.clear();
      assert (tmp_string.empty());
      assert (ret_value.rbegin()->rbegin()->size() > 0);
    }
  }

  return ret_value;

} // get_mac_via_popen