static int
_sun_get_led_sdr_callback (ipmi_sdr_ctx_t sdr_ctx,
			   uint8_t record_type,
			   const void *sdr_record,
			   unsigned int sdr_record_len,
			   void *arg)
{
  struct ipmi_oem_sun_get_led_sdr_callback *sdr_callback_arg;
  ipmi_oem_state_data_t *state_data;
  uint8_t bytes_rq[IPMI_OEM_MAX_BYTES];
  uint8_t bytes_rs[IPMI_OEM_MAX_BYTES];
  int rs_len;
  uint16_t record_id;
  char fmt[IPMI_OEM_FMT_BUFLEN + 1];
  char device_id_string[IPMI_SDR_MAX_DEVICE_ID_STRING_LENGTH + 1];
  char sensor_name_buf[IPMI_SDR_MAX_SENSOR_NAME_LENGTH + 1];
  char *sensor_name = NULL;
  uint8_t entity_instance_type;
  uint8_t led_mode;
  char *led_mode_str = NULL;

  assert (sdr_ctx);
  assert (sdr_record);
  assert (sdr_record_len);
  assert (arg);

  sdr_callback_arg = (struct ipmi_oem_sun_get_led_sdr_callback *)arg;
  state_data = sdr_callback_arg->state_data;

  /* Sun OEM
   *
   * From Ipmitool (http://ipmitool.sourceforge.net/)
   *
   * Get Led Request
   *
   * 0x2E - OEM network function (is IPMI_NET_FN_OEM_GROUP_RQ)
   * 0x21 - OEM cmd
   * 0x?? - Device Slave Address (in General Device Locator Record)
   *      - Note that the IPMI command requires the entire
   *        byte of the slave address.
   * 0x?? - LED Type (see below [1])
   *      - 0 - ok2rm
   *      - 1 - service
   *      - 2 - activity
   *      - 3 - locate 
   * 0x?? - Controller Address / Device Access Address (in General Device Locator Record)
   *      - 0x20 if the LED is local
   *      - Note that the IPMI command requires the entire
   *        byte of the access address.
   * 0x?? - HW Info (OEM field in General Device Locator Record)
   * 0x?? - Force
   *      - 0 - Go thru controller
   *      - 1 - Directly access device
   *
   * An alternate format is described in the ipmitool comments for Sun
   * Blade Moduler Systems.
   *
   * 0x2E - OEM network function (is IPMI_NET_FN_OEM_GROUP_RQ)
   * 0x21 - OEM cmd
   * 0x?? - Device Slave Address (in General Device Locator Record)
   * 0x?? - LED Type
   * 0x?? - Controller Address / Device Access Address (in General Device Locator Record)
   * 0x?? - HW Info (OEM field in General Device Locator Record)
   * 0x?? - Entity ID
   * 0x?? - Entity Instance
   *      - 7 bit version
   * 0x?? - Force
   *      - 0 - Go thru controller
   *      - 1 - Directly access device
   *
   * Get Led Response
   *
   * 0x21 - OEM cmd
   * 0x?? - Completion Code
   * 0x?? - LED mode
   *
   * achu notes: 
   *
   * [1] - As far as I can tell, the LED type field is useless.  My
   * assumption is that on older Sun systems, or other motherboards I
   * don't have access to, one can specify an LED type, which allows
   * you to enable/disable a particular LED amongst many.  On my Sun
   * Fire 4140, it appears to do nothing and affect nothing.  I will
   * add in a new option later if it becomes necessary for the user to
   * specify an LED type.  In the meantime, I will copy the code use
   * in ipmitool and set this field to the OEM field.
   */

  if (record_type != IPMI_SDR_FORMAT_GENERIC_DEVICE_LOCATOR_RECORD)
    return (0);

  if (ipmi_sdr_parse_entity_id_instance_type (state_data->sdr_ctx,
					      sdr_record,
					      sdr_record_len,
					      NULL,
					      NULL,
					      &entity_instance_type) < 0)
    {
      pstdout_fprintf (state_data->pstate,
		       stderr,
		       "ipmi_sdr_parse_entity_id_and_instance: %s\n",
		       ipmi_sdr_ctx_errormsg (state_data->sdr_ctx));
      return (-1);
    }
      
  /* if it isn't a physical instance, don't continue on */

  if (entity_instance_type == IPMI_SDR_LOGICAL_CONTAINER_ENTITY)
    return (0);
          
  if (ipmi_sdr_parse_record_id_and_type (state_data->sdr_ctx,
					 sdr_record,
					 sdr_record_len,
					 &record_id,
					 NULL) < 0)
    {
      pstdout_fprintf (state_data->pstate,
		       stderr,
		       "ipmi_sdr_parse_record_id_and_type: %s\n",
		       ipmi_sdr_ctx_errormsg (state_data->sdr_ctx));
      return (-1);
    }

  /* achu: the sun oem commands want the full byte, not just the
   * sub-field, so use indexes instead of sdr-parse lib.
   */

  bytes_rq[0] = IPMI_CMD_OEM_SUN_GET_LED;
  bytes_rq[1] = ((uint8_t *)sdr_record)[IPMI_SDR_RECORD_GENERIC_DEVICE_LOCATOR_DEVICE_SLAVE_ADDRESS_INDEX];
  bytes_rq[2] = ((uint8_t *)sdr_record)[IPMI_SDR_RECORD_GENERIC_DEVICE_LOCATOR_OEM_INDEX];
  bytes_rq[3] = ((uint8_t *)sdr_record)[IPMI_SDR_RECORD_GENERIC_DEVICE_LOCATOR_DEVICE_ACCESS_ADDRESS_INDEX];
  bytes_rq[4] = ((uint8_t *)sdr_record)[IPMI_SDR_RECORD_GENERIC_DEVICE_LOCATOR_OEM_INDEX];
  bytes_rq[5] = IPMI_OEM_SUN_LED_FORCE_GO_THRU_CONTROLLER;

  if ((rs_len = ipmi_cmd_raw (state_data->ipmi_ctx,
			      0, /* lun */
			      IPMI_NET_FN_OEM_GROUP_RQ, /* network function */
			      bytes_rq, /* data */
			      6, /* num bytes */
			      bytes_rs,
			      IPMI_OEM_MAX_BYTES)) < 0)
    {
      pstdout_fprintf (state_data->pstate,
		       stderr,
		       "ipmi_cmd_raw: %s\n",
		       ipmi_ctx_errormsg (state_data->ipmi_ctx));
      return (-1);
    }
  
  /* achu: there are probably 1 or 2 completion codes that are
   * acceptable to ignore and continue on, but who knows what they
   * are.
   */

  if (ipmi_oem_check_response_and_completion_code (state_data,
						   bytes_rs,
						   rs_len,
						   3,
						   IPMI_CMD_OEM_SUN_GET_LED,
						   IPMI_NET_FN_OEM_GROUP_RS,
						   NULL) < 0)
    return (-1);
  
  if (!sdr_callback_arg->header_output_flag)
    {
      memset (fmt, '\0', IPMI_OEM_FMT_BUFLEN + 1);
      
      snprintf (fmt,
		IPMI_OEM_FMT_BUFLEN,
		"%%-%ds | %%-%ds | LED Mode\n",
		sdr_callback_arg->column_width->record_id,
		sdr_callback_arg->column_width->sensor_name);
      
      pstdout_printf (state_data->pstate,
		      fmt,
		      SENSORS_HEADER_RECORD_ID_STR,
		      SENSORS_HEADER_NAME_STR);
          
      sdr_callback_arg->header_output_flag++;
    }
      
  led_mode = bytes_rs[2];
      
  if (state_data->prog_data->args->verbose_count)
    {
      memset (sensor_name_buf, '\0', IPMI_SDR_MAX_SENSOR_NAME_LENGTH + 1);
      
      if (ipmi_sdr_parse_entity_sensor_name (state_data->sdr_ctx,
					     NULL,
					     0,
					     0, /* sensor number */
					     IPMI_SDR_SENSOR_NAME_FLAGS_IGNORE_SHARED_SENSORS, /* flags */
					     sensor_name_buf,
					     IPMI_SDR_MAX_SENSOR_NAME_LENGTH) < 0)
	{
	  pstdout_fprintf (state_data->pstate,
			   stderr,
			   "ipmi_sdr_parse_entity_sensor_name: %s\n",
			   ipmi_sdr_ctx_errormsg (state_data->sdr_ctx));
	  return (-1);
	}
          
      sensor_name = sensor_name_buf;
    }
  else
    {
      memset (device_id_string, '\0', IPMI_SDR_MAX_DEVICE_ID_STRING_LENGTH + 1);
      
      if (ipmi_sdr_parse_device_id_string (state_data->sdr_ctx,
					   sdr_record,
					   sdr_record_len,
					   device_id_string,
					   IPMI_SDR_MAX_DEVICE_ID_STRING_LENGTH) < 0)
	{
	  pstdout_fprintf (state_data->pstate,
			   stderr,
			   "ipmi_sdr_parse_device_id_string: %s\n",
			   ipmi_sdr_ctx_errormsg (state_data->sdr_ctx));
	  return (-1);
	}
      
      sensor_name = device_id_string;
    }
      
  switch (led_mode)
    {
    case IPMI_OEM_SUN_LED_MODE_OFF:
      led_mode_str = "Off";
      break;
    case IPMI_OEM_SUN_LED_MODE_ON:
      led_mode_str = "On";
      break;
    case IPMI_OEM_SUN_LED_MODE_STANDBY:
      led_mode_str = "Standby";
      break;
    case IPMI_OEM_SUN_LED_MODE_SLOW:
      led_mode_str = "Slow";
      break;
    case IPMI_OEM_SUN_LED_MODE_FAST:
      led_mode_str = "Fast";
      break;
    default:
      led_mode_str = "Unknown";
    }
  
  snprintf (fmt,
	    IPMI_OEM_FMT_BUFLEN,
	    "%%-%du | %%-%ds | %s\n",
	    sdr_callback_arg->column_width->record_id,
	    sdr_callback_arg->column_width->sensor_name,
	    led_mode_str);
      
  pstdout_printf (state_data->pstate,
		  fmt,
		  record_id,
		  sensor_name);

  return (0);
}
static int
_simple_output_header (ipmi_sensors_state_data_t *state_data,
                       uint16_t record_id,
                       uint8_t sensor_number,
                       int event_message_output_type,
                       uint16_t sensor_event_bitmask)
{
  char fmt[IPMI_SENSORS_FMT_BUFLEN + 1];
  char sensor_name[IPMI_SDR_MAX_SENSOR_NAME_LENGTH + 1];
  unsigned int sensor_name_flags = 0;
  const char *sensor_type_string;
  uint8_t event_reading_type_code;

  assert (state_data);
  assert (IPMI_SENSORS_EVENT_VALID (event_message_output_type));

  memset (sensor_name, '\0', IPMI_SDR_MAX_SENSOR_NAME_LENGTH + 1);
      
  if (!state_data->prog_data->args->shared_sensors)
    sensor_name_flags |= IPMI_SDR_SENSOR_NAME_FLAGS_IGNORE_SHARED_SENSORS;

  if (state_data->prog_data->args->entity_sensor_names)
    {
      if (ipmi_sdr_parse_entity_sensor_name (state_data->sdr_ctx,
                                             NULL,
                                             0,
                                             sensor_number,
                                             sensor_name_flags,
                                             sensor_name,
                                             IPMI_SDR_MAX_SENSOR_NAME_LENGTH) < 0)
        {
          pstdout_fprintf (state_data->pstate,
                           stderr,
                           "ipmi_sdr_parse_entity_sensor_name: %s\n",
                           ipmi_sdr_ctx_errormsg (state_data->sdr_ctx));
          return (-1);
        }
    }
  else
    {
      if (ipmi_sdr_parse_sensor_name (state_data->sdr_ctx,
                                      NULL,
                                      0,
                                      sensor_number,
                                      sensor_name_flags,
                                      sensor_name,
                                      IPMI_SDR_MAX_SENSOR_NAME_LENGTH) < 0)
        {
          pstdout_fprintf (state_data->pstate,
                           stderr,
                           "ipmi_sdr_parse_sensor_name: %s\n",
                           ipmi_sdr_ctx_errormsg (state_data->sdr_ctx));
          return (-1);
        }
    }
  
  memset (fmt, '\0', IPMI_SENSORS_FMT_BUFLEN + 1);
  if (state_data->prog_data->args->no_sensor_type_output)
    {
      if (state_data->prog_data->args->comma_separated_output)
        snprintf (fmt,
                  IPMI_SENSORS_FMT_BUFLEN,
                  "%%u,%%s");
      else
        snprintf (fmt,
                  IPMI_SENSORS_FMT_BUFLEN,
                  "%%-%du | %%-%ds",
                  state_data->column_width.record_id,
                  state_data->column_width.sensor_name);
      
      pstdout_printf (state_data->pstate,
                      fmt,
                      record_id,
                      sensor_name);
    }
  else
    {     
      uint8_t sensor_type;

      if (ipmi_sdr_parse_sensor_type (state_data->sdr_ctx,
                                      NULL,
                                      0,
                                      &sensor_type) < 0)
        {
          pstdout_fprintf (state_data->pstate,
                           stderr,
                           "ipmi_sdr_parse_sensor_type: %s\n",
                           ipmi_sdr_ctx_errormsg (state_data->sdr_ctx));
          return (-1);
        }
      
      if (state_data->prog_data->args->comma_separated_output)
        snprintf (fmt,
                  IPMI_SENSORS_FMT_BUFLEN,
                  "%%u,%%s,%%s");
      else
        snprintf (fmt,
                  IPMI_SENSORS_FMT_BUFLEN,
                  "%%-%du | %%-%ds | %%-%ds",
                  state_data->column_width.record_id,
                  state_data->column_width.sensor_name,
                  state_data->column_width.sensor_type);
      
      if ((state_data->prog_data->args->interpret_oem_data)
          && (ipmi_sdr_parse_event_reading_type_code (state_data->sdr_ctx,
                                                      NULL,
                                                      0,
                                                      &event_reading_type_code) >= 0))
        sensor_type_string = get_oem_sensor_type_output_string (sensor_type,
                                                                event_reading_type_code,
                                                                state_data->oem_data.manufacturer_id,
                                                                state_data->oem_data.product_id);
      else 
        sensor_type_string = get_sensor_type_output_string (sensor_type);
      
      pstdout_printf (state_data->pstate,
                      fmt,
                      record_id,
                      sensor_name,
                      sensor_type_string);
    }

  if (state_data->prog_data->args->output_sensor_state)
    {
      char *sensor_state_str = NULL;

      if (ipmi_sensors_get_sensor_state (state_data,
                                         event_message_output_type,
                                         sensor_event_bitmask,
                                         &sensor_state_str) < 0)
        return (-1);

      if (state_data->prog_data->args->comma_separated_output)
        snprintf (fmt,
                  IPMI_SENSORS_FMT_BUFLEN,
                  ",%%s");
      else
        snprintf (fmt,
                  IPMI_SENSORS_FMT_BUFLEN,
                  " | %%-8s");

      pstdout_printf (state_data->pstate,
                      fmt,
                      sensor_state_str);
    }
      
  return (0);
}