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/*
* @copyright Copyright (c) 2016-2019 TOYOTA MOTOR CORPORATION.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* ====================================================================== */
/**
* @file VP_GetEnv.c
* @brief API to get vehicle parameter environment variable
*/
/* ====================================================================== */
#include <stdlib.h>
#include <string.h>
#include <other_service/VP_GetEnv.h>
/* ====================================================================== */
/**
* @fn
* void VP_GetEnv(char *pEnvStr, char *pEnvBuff )
* @breaf Get Environment Variable
* @param[in] (pEnvStr) Pointer to the string of the environment variable name to be gotten
* @param[out] (pEnvBuff) Start address of the area to store the gotten value of the environment variable
* @return None
* @detail Read the value (string) of the environment variable specified by the argument and stores it in the specified address.
*/
/* ====================================================================== */
void VP_GetEnv(const char *pEnvStr, char *pEnvBuff )
{
char *env_string;
size_t length;
if ((pEnvStr != NULL) && (pEnvBuff != NULL)) {
env_string = getenv(pEnvStr);
if (env_string == NULL) {
*pEnvBuff = '\0';
} else {
length = strlen( env_string );
if (length < VP_MAX_LENGTH) {
(void)strcpy(pEnvBuff, env_string);
} else {
(void)strncpy(pEnvBuff, env_string, (VP_MAX_LENGTH - 1));
pEnvBuff[ VP_MAX_LENGTH - 1 ] = '\0';
}
}
} else {
if(pEnvBuff != NULL) {
*pEnvBuff = '\0';
}
}
}
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