117 lines
2.4 KiB
C
117 lines
2.4 KiB
C
/*
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Copyright (c) 2020 Roger Light <roger@atchoo.org>
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License v1.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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http://www.eclipse.org/legal/epl-v10.html
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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Contributors:
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Roger Light - initial implementation and documentation.
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*/
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#include "config.h"
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#include <cJSON.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "mosquitto.h"
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int json_get_bool(cJSON *json, const char *name, bool *value, bool optional, bool default_value)
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{
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cJSON *jtmp;
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if(optional == true){
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*value = default_value;
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}
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jtmp = cJSON_GetObjectItem(json, name);
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if(jtmp){
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if(cJSON_IsBool(jtmp) == false){
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return MOSQ_ERR_INVAL;
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}
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*value = cJSON_IsTrue(jtmp);
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}else{
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if(optional == false){
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return MOSQ_ERR_INVAL;
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}
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}
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return MOSQ_ERR_SUCCESS;
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}
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int json_get_int(cJSON *json, const char *name, int *value, bool optional, int default_value)
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{
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cJSON *jtmp;
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if(optional == true){
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*value = default_value;
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}
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jtmp = cJSON_GetObjectItem(json, name);
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if(jtmp){
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if(cJSON_IsNumber(jtmp) == false){
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return MOSQ_ERR_INVAL;
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}
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*value = jtmp->valueint;
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}else{
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if(optional == false){
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return MOSQ_ERR_INVAL;
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}
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}
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return MOSQ_ERR_SUCCESS;
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}
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int json_get_string(cJSON *json, const char *name, char **value, bool optional)
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{
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cJSON *jtmp;
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*value = NULL;
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jtmp = cJSON_GetObjectItem(json, name);
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if(jtmp){
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if(cJSON_IsString(jtmp) == false){
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return MOSQ_ERR_INVAL;
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}
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*value = jtmp->valuestring;
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}else{
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if(optional == false){
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return MOSQ_ERR_INVAL;
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}
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}
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return MOSQ_ERR_SUCCESS;
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}
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/* Return a number as a number, or attempt to convert a string to a number, or a bool to a number */
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double json_get_as_number(const cJSON *json)
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{
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char *endptr = NULL;
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if(cJSON_IsNumber(json)){
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return json->valuedouble;
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}else if(cJSON_IsString(json)){
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return strtod(json->valuestring, &endptr);
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}else if(cJSON_IsBool(json)){
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return cJSON_IsTrue(json);
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}else{
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return 0.0;
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}
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}
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cJSON *cJSON_AddIntToObject(cJSON * const object, const char * const name, int number)
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{
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char buf[30];
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snprintf(buf, sizeof(buf), "%d", number);
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return cJSON_AddRawToObject(object, name, buf);
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}
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