Function check_printer_state

backend/ipp.c:2437–2492

 */

static ipp_pstate_t			/* O - Current printer-state */
check_printer_state(
    http_t      *http,			/* I - HTTP connection */
    const char  *uri,			/* I - Printer URI */
    const char  *resource,		/* I - Resource path */
    const char  *user,			/* I - Username, if any */
    int         version)		/* I - IPP version */
 {
  ipp_t		*request,		/* IPP request */
		*response;		/* IPP response */
  ipp_attribute_t *attr;		/* Attribute in response */
  ipp_pstate_t	printer_state = IPP_PSTATE_STOPPED;
					/* Current printer-state */


 /*
  * Send a Get-Printer-Attributes request and log the results...
  */

  request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES);
  ippSetVersion(request, version / 10, version % 10);

  ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
	       NULL, uri);

  if (user && user[0])
    ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
		 "requesting-user-name", NULL, user);

  ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
		"requested-attributes",
		(int)(sizeof(pattrs) / sizeof(pattrs[0])), NULL, pattrs);

  fprintf(stderr, "DEBUG: IPP/%d.%d %s #%d\n", version / 10, version % 10, ippOpString(ippGetOperation(request)), ippGetRequestId(request));
  debug_attributes(request);

  if ((response = cupsDoRequest(http, request, resource)) != NULL)
  {
    report_printer_state(response);

    if ((attr = ippFindAttribute(response, "printer-state",
				 IPP_TAG_ENUM)) != NULL)
      printer_state = (ipp_pstate_t)attr->values[0].integer;
  }

  fprintf(stderr, "DEBUG: Get-Printer-Attributes: %s (%s)\n",
	  ippErrorString(cupsLastError()), cupsLastErrorString());
  debug_attributes(response);
  ippDelete(response);

 /*
  * Return the printer-state value...
  */

  return (printer_state);
}