代码绑定mac地址

#define CMD_RESULT_BUF_SIZE 100

int ExecuteCMD(const char *cmd, char *result)
{
    int iRet = -1;
    char buf_ps[CMD_RESULT_BUF_SIZE];
    char ps[CMD_RESULT_BUF_SIZE] = {0};
    FILE *ptr;
    std::strcpy(ps, cmd);
    if((ptr = popen(ps, "r")) != NULL)
    {
        while(fgets(buf_ps, sizeof(buf_ps), ptr) != NULL)
        {
           strcat(result, buf_ps);
           if(strlen(result) > CMD_RESULT_BUF_SIZE)
           {
               break;
           }
        }
        pclose(ptr);
        ptr = NULL;
        iRet = 0;  // 处理成功
    }
    else
    {
        // printf("popen %s error\n", ps);
        iRet = -1; // 处理失败
    }
    return iRet;
}






	

int main(int argc, char **argv)
{
    //获取mac地址对比
	char result[CMD_RESULT_BUF_SIZE]={0};
	std::string str1 = "cat /sys/class/net/enp4s0/address"; //78:d0:04:2e:db:d6
	const char *command1 = str1.c_str();
	ExecuteCMD(command1, result);
	std::string findMac = result;
	if(findMac.length() > 17)
	{
		std::string macAddress = "78:d0:04:2e:db:d6";
		if(strcmp(findMac.substr(0,17).c_str(),macAddress.c_str())==0){
            // if(1){
            ROS_INFO ("==============");
            ROS_INFO("Mac address correct!");
        }
        else{
            ROS_INFO ("!!!!!!!!!!!==============");
            ROS_INFO("Mac address incorrect!");
            ros::shutdown();
            return 0;
        }
	}
	else
	{
		ROS_INFO("Can not find mac address!");
		ros::shutdown();
		return 0;
	}
}