int MyDoGet(int sock, PSTR url, PSTR rxBuffer)
{
  if (strlen(url))
  {
    if(httpstricmp(url,"IMAGE.GIF"))
    {/* Browser is asking for GIF image */
      GraphData gd;
      SizeData sd;
      GetData(gd,sd,url);
      SendGifHeader(sock);
      DrawGraph(sock,sd.xsize,sd.ysize,gd.MinD,gd.MaxD,gd.MinT,gd.MaxT);
      return 1;
    }
    else
    if(httpstricmp(url,"RESET"))
    {/* Browser is asking us to reset limit values */
      char buffer[80];
      char * cp=url;
      while ((*cp) &&( *cp!='?')) cp++;
      sprintf(buffer,"INDEX.HTM%s",cp);
      /* Decide what kind of reset request it was */
      if(httpstricmp(url,"RESETMAX.HTM"))
      {
        gMaxMeasured=-9999;
      }
      else
      if(httpstricmp(url,"RESETMIN.HTM"))
      {
        gMinMeasured=9999;
      }
      else
      if(httpstricmp(url,"RESETBUF.HTM"))
      {
        gNextPosition=0;
      }
      RedirectResponse(sock,buffer);
      return 1;
    }
  }
  return (* oldhand)(sock,url,rxBuffer); /*Use old handler */
}

Listing 7—The MyDoGet code looks at the document URL and performs different actions depending on the document name 
                  part of the URL. If it is IMAGE.GIF, the request is sent to the image-rendering system. If it contains 
                  RESET, it processes one of several actions and redirects the browser to a new web page.