mirror of
https://github.com/stargieg/bacnet-stack
synced 2025-10-26 23:35:52 +08:00
update to r3056 from https://sourceforge.net/p/bacnet/code/3056/tree/trunk/bacnet-stack/ add ipv6 and schedule support
This commit is contained in:
281
ports/xplained/bname.c
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281
ports/xplained/bname.c
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/**************************************************************************
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*
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* Copyright (C) 2011 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include "bacdef.h"
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#include "bacdcode.h"
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#include "bacstr.h"
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#include "nvmdata.h"
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#include "device.h"
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#include "bname.h"
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/*************************************************************************
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* DESCRIPTION: Test the BACnet CharacterString for validity
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* RETURN: true if valid
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* NOTES: none
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**************************************************************************/
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static bool bacnet_name_isvalid(uint8_t encoding,
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uint8_t length,
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char *str)
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{
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bool valid = false;
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if ((encoding < MAX_CHARACTER_STRING_ENCODING) &&
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(length <= NVM_NAME_SIZE)) {
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if (encoding == CHARACTER_UTF8) {
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valid = utf8_isvalid(str, length);
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} else {
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valid = true;
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}
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}
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return valid;
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}
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/*************************************************************************
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* DESCRIPTION: Copy the name from non-volatile memory at offset
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* RETURN: number of bytes read, or -1 on error
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* NOTES: none
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**************************************************************************/
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int bacnet_name_copy(
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uint16_t offset,
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uint8_t *dest,
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uint8_t dest_len)
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{
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uint8_t encoding = 0;
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uint8_t length = 0;
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char name[NVM_NAME_SIZE + 1] = "";
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unsigned i = 0;
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int bytes_read = -1;
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nvm_read(NVM_NAME_ENCODING(offset), &encoding, 1);
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nvm_read(NVM_NAME_LENGTH(offset), &length, 1);
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nvm_read(NVM_NAME_STRING(offset),
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(uint8_t *) & name, NVM_NAME_SIZE);
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if (bacnet_name_isvalid(encoding, length, name)) {
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if (dest_len > NVM_NAME_SIZE) {
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dest_len = NVM_NAME_SIZE;
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}
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bytes_read = dest_len;
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for (i = 0; i < dest_len; i++) {
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if (i < length) {
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dest[i] = name[i];
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} else {
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dest[i] = 0;
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}
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}
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} else {
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for (i = 0; i < dest_len; i++) {
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dest[i] = 0;
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}
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}
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return bytes_read;
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}
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/*************************************************************************
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* DESCRIPTION: Encode the name in a buffer in the sequence stored in EEPROM.
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* RETURN: number of bytes in buffer, or 0 if too big to fit.
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* NOTES: none
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**************************************************************************/
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uint8_t bacnet_name_encode(
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uint8_t *buffer,
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uint8_t buffer_len,
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uint8_t encoding,
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char *str,
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uint8_t str_len)
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{
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unsigned len = 0;
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unsigned i = 0;
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if (str_len < (255-2)) {
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len = 1 + 1 + str_len;
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if (len <= buffer_len) {
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buffer[NVM_NAME_LENGTH(0)] = str_len;
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buffer[NVM_NAME_ENCODING(0)] = encoding;
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for (i = 0; i < str_len; i++) {
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buffer[NVM_NAME_STRING(0)+i] = str[i];
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}
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} else {
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len = 0;
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}
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}
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return len;
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}
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/*************************************************************************
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* DESCRIPTION: Store the name to non-volatile memory at offset
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* RETURN: true if name is a valid set of characters
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* NOTES: none
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**************************************************************************/
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bool bacnet_name_save(
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uint16_t offset,
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uint8_t encoding,
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char *str,
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uint8_t str_len)
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{
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uint8_t buffer[NVM_NAME_SIZE] = { 0 };
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uint8_t length = 0;
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if (bacnet_name_isvalid(encoding, str_len, str)) {
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length = bacnet_name_encode(
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buffer,
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sizeof(buffer),
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encoding,
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str,
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str_len);
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if (length) {
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nvm_write(
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offset,
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&buffer[0],length);
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return true;
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}
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}
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return false;
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}
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bool bacnet_name_set(uint16_t offset,
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BACNET_CHARACTER_STRING * char_string)
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{
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uint8_t encoding = 0;
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uint8_t length = 0;
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char *str = NULL;
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length = characterstring_length(char_string);
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encoding = characterstring_encoding(char_string);
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str = characterstring_value(char_string);
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return bacnet_name_save(offset, encoding, str, length);
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}
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bool bacnet_name_write_unique(uint16_t offset,
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int object_type,
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uint32_t object_instance,
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BACNET_CHARACTER_STRING * char_string,
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BACNET_ERROR_CLASS * error_class,
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BACNET_ERROR_CODE * error_code)
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{
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bool status = false;
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size_t length = 0;
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uint8_t encoding = 0;
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int duplicate_type = 0;
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uint32_t duplicate_instance = 0;
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length = characterstring_length(char_string);
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if (length < 1) {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
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} else if (length <= NVM_NAME_SIZE) {
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encoding = characterstring_encoding(char_string);
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if (encoding < MAX_CHARACTER_STRING_ENCODING) {
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if (Device_Valid_Object_Name(char_string, &duplicate_type,
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&duplicate_instance)) {
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if ((duplicate_type == object_type) &&
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(duplicate_instance == object_instance)) {
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/* writing same name to same object */
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status = true;
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} else {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_DUPLICATE_NAME;
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}
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} else {
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status = bacnet_name_set(offset, char_string);
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if (status) {
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Device_Inc_Database_Revision();
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} else {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
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}
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}
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} else {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
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}
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} else {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
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}
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return status;
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}
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/* no required minumum length or duplicate checking */
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bool bacnet_name_write(uint16_t offset,
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BACNET_CHARACTER_STRING * char_string,
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BACNET_ERROR_CLASS * error_class,
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BACNET_ERROR_CODE * error_code)
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{
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bool status = false;
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size_t length = 0;
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uint8_t encoding = 0;
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length = characterstring_length(char_string);
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if (length <= NVM_NAME_SIZE) {
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encoding = characterstring_encoding(char_string);
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if (encoding < MAX_CHARACTER_STRING_ENCODING) {
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status = bacnet_name_set(offset, char_string);
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if (!status) {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
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}
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} else {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
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}
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} else {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
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}
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return status;
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}
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void bacnet_name_init(uint16_t offset,
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char *default_string)
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{
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(void) bacnet_name_save(offset, CHARACTER_UTF8, default_string,
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strlen(default_string));
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}
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void bacnet_name(uint16_t offset,
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BACNET_CHARACTER_STRING * char_string,
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char *default_string)
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{
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uint8_t encoding = 0;
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uint8_t length = 0;
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char name[NVM_NAME_SIZE + 1] = "";
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nvm_read(NVM_NAME_ENCODING(offset), &encoding, 1);
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nvm_read(NVM_NAME_LENGTH(offset), &length, 1);
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nvm_read(NVM_NAME_STRING(offset), (uint8_t *) & name[0], NVM_NAME_SIZE);
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if (bacnet_name_isvalid(encoding, length, name)) {
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characterstring_init(char_string, encoding, &name[0], length);
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} else if (default_string) {
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characterstring_init_ansi(char_string, default_string);
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}
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}
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