Function cupsGetDefault2

cups/util.c:323–376

 */

const char *				/* O - Default printer or @code NULL@ */
cupsGetDefault2(http_t *http)		/* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
{
  ipp_t		*request,		/* IPP Request */
		*response;		/* IPP Response */
  ipp_attribute_t *attr;		/* Current attribute */
  _cups_globals_t *cg = _cupsGlobals();	/* Pointer to library globals */


 /*
  * See if we have a user default printer set...
  */

  if (_cupsUserDefault(cg->def_printer, sizeof(cg->def_printer)))
    return (cg->def_printer);

 /*
  * Connect to the server as needed...
  */

  if (!http)
    if ((http = _cupsConnect()) == NULL)
      return (NULL);

 /*
  * Build a CUPS_GET_DEFAULT request, which requires the following
  * attributes:
  *
  *    attributes-charset
  *    attributes-natural-language
  */

  request = ippNewRequest(IPP_OP_CUPS_GET_DEFAULT);

 /*
  * Do the request and get back a response...
  */

  if ((response = cupsDoRequest(http, request, "/")) != NULL)
  {
    if ((attr = ippFindAttribute(response, "printer-name",
                                 IPP_TAG_NAME)) != NULL)
    {
      strlcpy(cg->def_printer, attr->values[0].string.text,
              sizeof(cg->def_printer));
      ippDelete(response);
      return (cg->def_printer);
    }

    ippDelete(response);
  }

  return (NULL);
}


/*