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b91735af136e7a24c81efa7d4083486b05d4d2f7
bacnet_stack/src/bacnet/basic/object/ms-input.c
T
Steve Karg b91735af13 Bugfix/code clean using gcc warnings (#371) 
* Enable extra GCC warnings to discover subtle bugs

* convert c++ comments to c comments

* cleanup pedantic compiler warnings

* Compile apps with GNU89 GNU99 GNU11 and GNU17

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
2022-12-25 21:43:51 -06:00

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/**************************************************************************
*
* Copyright (C) 2009 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
/* Multi-state Input Objects */
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "bacnet/bacdef.h"
#include "bacnet/bacdcode.h"
#include "bacnet/bacenum.h"
#include "bacnet/bacapp.h"
#include "bacnet/config.h" /* the custom stuff */
#include "bacnet/rp.h"
#include "bacnet/wp.h"
#include "bacnet/basic/object/device.h"
#include "bacnet/basic/object/ms-input.h"
#include "bacnet/basic/services.h"
/* number of demo objects */
#ifndef MAX_MULTISTATE_INPUTS
#define MAX_MULTISTATE_INPUTS 4
#endif
/* how many states? 1 to 254 states - 0 is not allowed. */
#ifndef MULTISTATE_NUMBER_OF_STATES
#define MULTISTATE_NUMBER_OF_STATES (254)
#endif
/* Here is our Present Value */
static uint8_t Present_Value[MAX_MULTISTATE_INPUTS];
/* Writable out-of-service allows others to manipulate our Present Value */
static bool Out_Of_Service[MAX_MULTISTATE_INPUTS];
static char Object_Name[MAX_MULTISTATE_INPUTS][64];
static char Object_Description[MAX_MULTISTATE_INPUTS][64];
static char State_Text[MAX_MULTISTATE_INPUTS][MULTISTATE_NUMBER_OF_STATES][64];
/* These three arrays are used by the ReadPropertyMultiple handler */
static const int Properties_Required[] = { PROP_OBJECT_IDENTIFIER,
PROP_OBJECT_NAME, PROP_OBJECT_TYPE, PROP_PRESENT_VALUE, PROP_STATUS_FLAGS,
PROP_EVENT_STATE, PROP_OUT_OF_SERVICE, PROP_NUMBER_OF_STATES, -1 };
static const int Properties_Optional[] = { PROP_DESCRIPTION, PROP_STATE_TEXT,
-1 };
static const int Properties_Proprietary[] = { -1 };
void Multistate_Input_Property_Lists(
const int **pRequired, const int **pOptional, const int **pProprietary)
{
if (pRequired) {
*pRequired = Properties_Required;
}
if (pOptional) {
*pOptional = Properties_Optional;
}
if (pProprietary) {
*pProprietary = Properties_Proprietary;
}
return;
}
void Multistate_Input_Init(void)
{
unsigned i;
/* initialize all the analog output priority arrays to NULL */
for (i = 0; i < MAX_MULTISTATE_INPUTS; i++) {
Present_Value[i] = 1;
sprintf(&Object_Name[i][0], "MULTISTATE INPUT %u", i);
sprintf(&Object_Description[i][0], "MULTISTATE INPUT %u", i);
}
return;
}
/* we simply have 0-n object instances. Yours might be */
/* more complex, and then you need to return the index */
/* that correlates to the correct instance number */
unsigned Multistate_Input_Instance_To_Index(uint32_t object_instance)
{
unsigned index = MAX_MULTISTATE_INPUTS;
if (object_instance < MAX_MULTISTATE_INPUTS) {
index = object_instance;
}
return index;
}
/* we simply have 0-n object instances. Yours might be */
/* more complex, and then you need to return the instance */
/* that correlates to the correct index */
uint32_t Multistate_Input_Index_To_Instance(unsigned index)
{
return index;
}
/* we simply have 0-n object instances. Yours might be */
/* more complex, and then count how many you have */
unsigned Multistate_Input_Count(void)
{
return MAX_MULTISTATE_INPUTS;
}
bool Multistate_Input_Valid_Instance(uint32_t object_instance)
{
unsigned index = 0; /* offset from instance lookup */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
return true;
}
return false;
}
static uint32_t Multistate_Input_Max_States(uint32_t instance)
{
(void)instance;
return MULTISTATE_NUMBER_OF_STATES;
}
uint32_t Multistate_Input_Present_Value(uint32_t object_instance)
{
uint32_t value = 1;
unsigned index = 0; /* offset from instance lookup */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
value = Present_Value[index];
}
return value;
}
bool Multistate_Input_Present_Value_Set(
uint32_t object_instance, uint32_t value)
{
bool status = false;
unsigned index = 0; /* offset from instance lookup */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
if ((value > 0) && (value <= MULTISTATE_NUMBER_OF_STATES)) {
Present_Value[index] = (uint8_t)value;
status = true;
}
}
return status;
}
bool Multistate_Input_Out_Of_Service(uint32_t object_instance)
{
bool value = false;
unsigned index = 0;
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
value = Out_Of_Service[index];
}
return value;
}
void Multistate_Input_Out_Of_Service_Set(uint32_t object_instance, bool value)
{
unsigned index = 0;
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
Out_Of_Service[index] = value;
}
return;
}
char *Multistate_Input_Description(uint32_t object_instance)
{
unsigned index = 0; /* offset from instance lookup */
char *pName = NULL; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
pName = Object_Description[index];
}
return pName;
}
bool Multistate_Input_Description_Set(uint32_t object_instance, char *new_name)
{
unsigned index = 0; /* offset from instance lookup */
size_t i = 0; /* loop counter */
bool status = false; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
status = true;
if (new_name) {
for (i = 0; i < sizeof(Object_Description[index]); i++) {
Object_Description[index][i] = new_name[i];
if (new_name[i] == 0) {
break;
}
}
} else {
for (i = 0; i < sizeof(Object_Description[index]); i++) {
Object_Description[index][i] = 0;
}
}
}
return status;
}
static bool Multistate_Input_Description_Write(uint32_t object_instance,
BACNET_CHARACTER_STRING *char_string,
BACNET_ERROR_CLASS *error_class,
BACNET_ERROR_CODE *error_code)
{
unsigned index = 0; /* offset from instance lookup */
size_t length = 0;
uint8_t encoding = 0;
bool status = false; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
length = characterstring_length(char_string);
if (length <= sizeof(Object_Description[index])) {
encoding = characterstring_encoding(char_string);
if (encoding == CHARACTER_UTF8) {
status = characterstring_ansi_copy(Object_Description[index],
sizeof(Object_Description[index]), char_string);
if (!status) {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
}
}
return status;
}
bool Multistate_Input_Object_Name(
uint32_t object_instance, BACNET_CHARACTER_STRING *object_name)
{
unsigned index = 0; /* offset from instance lookup */
bool status = false;
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
status = characterstring_init_ansi(object_name, Object_Name[index]);
}
return status;
}
/* note: the object name must be unique within this device */
bool Multistate_Input_Name_Set(uint32_t object_instance, char *new_name)
{
unsigned index = 0; /* offset from instance lookup */
size_t i = 0; /* loop counter */
bool status = false; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
status = true;
/* FIXME: check to see if there is a matching name */
if (new_name) {
for (i = 0; i < sizeof(Object_Name[index]); i++) {
Object_Name[index][i] = new_name[i];
if (new_name[i] == 0) {
break;
}
}
} else {
for (i = 0; i < sizeof(Object_Name[index]); i++) {
Object_Name[index][i] = 0;
}
}
}
return status;
}
static bool Multistate_Input_Object_Name_Write(uint32_t object_instance,
BACNET_CHARACTER_STRING *char_string,
BACNET_ERROR_CLASS *error_class,
BACNET_ERROR_CODE *error_code)
{
unsigned index = 0; /* offset from instance lookup */
size_t length = 0;
uint8_t encoding = 0;
bool status = false; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if (index < MAX_MULTISTATE_INPUTS) {
length = characterstring_length(char_string);
if (length <= sizeof(Object_Name[index])) {
encoding = characterstring_encoding(char_string);
if (encoding == CHARACTER_UTF8) {
status = characterstring_ansi_copy(Object_Name[index],
sizeof(Object_Name[index]), char_string);
if (!status) {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
}
}
return status;
}
char *Multistate_Input_State_Text(
uint32_t object_instance, uint32_t state_index)
{
unsigned index = 0; /* offset from instance lookup */
char *pName = NULL; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if ((index < MAX_MULTISTATE_INPUTS) && (state_index > 0) &&
(state_index <= MULTISTATE_NUMBER_OF_STATES)) {
state_index--;
pName = State_Text[index][state_index];
}
return pName;
}
/* note: the object name must be unique within this device */
bool Multistate_Input_State_Text_Set(
uint32_t object_instance, uint32_t state_index, char *new_name)
{
unsigned index = 0; /* offset from instance lookup */
size_t i = 0; /* loop counter */
bool status = false; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if ((index < MAX_MULTISTATE_INPUTS) && (state_index > 0) &&
(state_index <= MULTISTATE_NUMBER_OF_STATES)) {
state_index--;
status = true;
if (new_name) {
for (i = 0; i < sizeof(State_Text[index][state_index]); i++) {
State_Text[index][state_index][i] = new_name[i];
if (new_name[i] == 0) {
break;
}
}
} else {
for (i = 0; i < sizeof(State_Text[index][state_index]); i++) {
State_Text[index][state_index][i] = 0;
}
}
}
return status;
;
}
static bool Multistate_Input_State_Text_Write(uint32_t object_instance,
uint32_t state_index,
BACNET_CHARACTER_STRING *char_string,
BACNET_ERROR_CLASS *error_class,
BACNET_ERROR_CODE *error_code)
{
unsigned index = 0; /* offset from instance lookup */
size_t length = 0;
uint8_t encoding = 0;
bool status = false; /* return value */
index = Multistate_Input_Instance_To_Index(object_instance);
if ((index < MAX_MULTISTATE_INPUTS) && (state_index > 0) &&
(state_index <= Multistate_Input_Max_States(object_instance))) {
state_index--;
length = characterstring_length(char_string);
if (length <= sizeof(State_Text[index][state_index])) {
encoding = characterstring_encoding(char_string);
if (encoding == CHARACTER_UTF8) {
status =
characterstring_ansi_copy(State_Text[index][state_index],
sizeof(State_Text[index][state_index]), char_string);
if (!status) {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
return status;
}
/* return apdu len, or BACNET_STATUS_ERROR on error */
int Multistate_Input_Read_Property(BACNET_READ_PROPERTY_DATA *rpdata)
{
int len = 0;
int apdu_len = 0; /* return value */
BACNET_BIT_STRING bit_string;
BACNET_CHARACTER_STRING char_string;
uint32_t present_value = 0;
unsigned i = 0;
uint32_t max_states = 0;
bool state = false;
uint8_t *apdu = NULL;
if ((rpdata == NULL) || (rpdata->application_data == NULL) ||
(rpdata->application_data_len == 0)) {
return 0;
}
apdu = rpdata->application_data;
switch (rpdata->object_property) {
case PROP_OBJECT_IDENTIFIER:
apdu_len = encode_application_object_id(
&apdu[0], OBJECT_MULTI_STATE_INPUT, rpdata->object_instance);
break;
/* note: Name and Description don't have to be the same.
You could make Description writable and different */
case PROP_OBJECT_NAME:
Multistate_Input_Object_Name(rpdata->object_instance, &char_string);
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_DESCRIPTION:
characterstring_init_ansi(&char_string,
Multistate_Input_Description(rpdata->object_instance));
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_OBJECT_TYPE:
apdu_len = encode_application_enumerated(
&apdu[0], OBJECT_MULTI_STATE_INPUT);
break;
case PROP_PRESENT_VALUE:
present_value =
Multistate_Input_Present_Value(rpdata->object_instance);
apdu_len = encode_application_unsigned(&apdu[0], present_value);
break;
case PROP_STATUS_FLAGS:
/* note: see the details in the standard on how to use these */
bitstring_init(&bit_string);
bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, false);
bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false);
if (Multistate_Input_Out_Of_Service(rpdata->object_instance)) {
bitstring_set_bit(
&bit_string, STATUS_FLAG_OUT_OF_SERVICE, true);
} else {
bitstring_set_bit(
&bit_string, STATUS_FLAG_OUT_OF_SERVICE, false);
}
apdu_len = encode_application_bitstring(&apdu[0], &bit_string);
break;
case PROP_EVENT_STATE:
/* note: see the details in the standard on how to use this */
apdu_len =
encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL);
break;
case PROP_OUT_OF_SERVICE:
state = Multistate_Input_Out_Of_Service(rpdata->object_instance);
apdu_len = encode_application_boolean(&apdu[0], state);
break;
case PROP_NUMBER_OF_STATES:
apdu_len = encode_application_unsigned(&apdu[apdu_len],
Multistate_Input_Max_States(rpdata->object_instance));
break;
case PROP_STATE_TEXT:
if (rpdata->array_index == 0) {
/* Array element zero is the number of elements in the array */
apdu_len = encode_application_unsigned(&apdu[0],
Multistate_Input_Max_States(rpdata->object_instance));
} else if (rpdata->array_index == BACNET_ARRAY_ALL) {
/* if no index was specified, then try to encode the entire list
*/
/* into one packet. */
max_states =
Multistate_Input_Max_States(rpdata->object_instance);
for (i = 1; i <= max_states; i++) {
characterstring_init_ansi(&char_string,
Multistate_Input_State_Text(
rpdata->object_instance, i));
/* FIXME: this might go beyond MAX_APDU length! */
len = encode_application_character_string(
&apdu[apdu_len], &char_string);
/* add it if we have room */
if ((apdu_len + len) < MAX_APDU) {
apdu_len += len;
} else {
rpdata->error_code =
ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
apdu_len = BACNET_STATUS_ABORT;
break;
}
}
} else {
max_states =
Multistate_Input_Max_States(rpdata->object_instance);
if (rpdata->array_index <= max_states) {
characterstring_init_ansi(&char_string,
Multistate_Input_State_Text(
rpdata->object_instance, rpdata->array_index));
apdu_len = encode_application_character_string(
&apdu[0], &char_string);
} else {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
apdu_len = BACNET_STATUS_ERROR;
}
}
break;
default:
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
apdu_len = BACNET_STATUS_ERROR;
break;
}
/* only array properties can have array options */
if ((apdu_len >= 0) && (rpdata->object_property != PROP_STATE_TEXT) &&
(rpdata->array_index != BACNET_ARRAY_ALL)) {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
apdu_len = BACNET_STATUS_ERROR;
}
return apdu_len;
}
/* returns true if successful */
bool Multistate_Input_Write_Property(BACNET_WRITE_PROPERTY_DATA *wp_data)
{
bool status = false; /* return value */
int len = 0;
int element_len = 0;
BACNET_APPLICATION_DATA_VALUE value;
uint32_t max_states = 0;
uint32_t array_index = 0;
BACNET_OBJECT_TYPE object_type = OBJECT_NONE;
uint32_t object_instance = 0;
/* decode the first chunk of the request */
len = bacapp_decode_application_data(
wp_data->application_data, wp_data->application_data_len, &value);
/* len < application_data_len: extra data for arrays only */
if (len < 0) {
/* error while decoding - a value larger than we can handle */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
return false;
}
if ((wp_data->object_property != PROP_STATE_TEXT) &&
(wp_data->array_index != BACNET_ARRAY_ALL)) {
/* only array properties can have array options */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
return false;
}
switch (wp_data->object_property) {
case PROP_OBJECT_NAME:
status = write_property_type_valid(
wp_data, &value, BACNET_APPLICATION_TAG_CHARACTER_STRING);
if (status) {
/* All the object names in a device must be unique */
if (Device_Valid_Object_Name(&value.type.Character_String,
&object_type, &object_instance)) {
if ((object_type == wp_data->object_type) &&
(object_instance == wp_data->object_instance)) {
/* writing same name to same object */
status = true;
} else {
status = false;
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_DUPLICATE_NAME;
}
} else {
status = Multistate_Input_Object_Name_Write(
wp_data->object_instance, &value.type.Character_String,
&wp_data->error_class, &wp_data->error_code);
}
}
break;
case PROP_DESCRIPTION:
status = write_property_type_valid(
wp_data, &value, BACNET_APPLICATION_TAG_CHARACTER_STRING);
if (status) {
status = Multistate_Input_Description_Write(
wp_data->object_instance, &value.type.Character_String,
&wp_data->error_class, &wp_data->error_code);
}
break;
case PROP_PRESENT_VALUE:
status = write_property_type_valid(
wp_data, &value, BACNET_APPLICATION_TAG_UNSIGNED_INT);
if (status) {
status = Multistate_Input_Present_Value_Set(
wp_data->object_instance, value.type.Unsigned_Int);
if (!status) {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
}
break;
case PROP_OUT_OF_SERVICE:
status = write_property_type_valid(
wp_data, &value, BACNET_APPLICATION_TAG_BOOLEAN);
if (status) {
Multistate_Input_Out_Of_Service_Set(
wp_data->object_instance, value.type.Boolean);
}
break;
case PROP_STATE_TEXT:
if (wp_data->array_index == 0) {
/* Array element zero is the number of
elements in the array. We have a fixed
size array, so we are read-only. */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
} else if (wp_data->array_index == BACNET_ARRAY_ALL) {
max_states =
Multistate_Input_Max_States(wp_data->object_instance);
array_index = 1;
element_len = len;
do {
status = write_property_type_valid(wp_data, &value,
BACNET_APPLICATION_TAG_CHARACTER_STRING);
if (!status) {
break;
}
if (element_len) {
status = Multistate_Input_State_Text_Write(
wp_data->object_instance, array_index,
&value.type.Character_String, &wp_data->error_class,
&wp_data->error_code);
}
max_states--;
array_index++;
if (max_states) {
element_len = bacapp_decode_application_data(
&wp_data->application_data[len],
wp_data->application_data_len - len, &value);
if (element_len < 0) {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
break;
}
len += element_len;
}
} while (max_states);
} else {
max_states =
Multistate_Input_Max_States(wp_data->object_instance);
if (wp_data->array_index <= max_states) {
status = write_property_type_valid(wp_data, &value,
BACNET_APPLICATION_TAG_CHARACTER_STRING);
if (status) {
status = Multistate_Input_State_Text_Write(
wp_data->object_instance, wp_data->array_index,
&value.type.Character_String, &wp_data->error_class,
&wp_data->error_code);
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
}
break;
case PROP_OBJECT_IDENTIFIER:
case PROP_OBJECT_TYPE:
case PROP_STATUS_FLAGS:
case PROP_EVENT_STATE:
case PROP_NUMBER_OF_STATES:
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
break;
default:
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
break;
}
return status;
}
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