 /*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * 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.
 */
#include <string.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include<fcntl.h>
#include<sys/stat.h>
#include<sys/types.h>
#include<unistd.h>
#include <assert.h>
#include <log/log.h>
#include <vendor-ril/telephony/ril.h>
#include <string>
#include <mutex>
#include <vector>
#include <cutils/properties.h>

#include "Radio_capability_switch_util.h"
#include "common.h"
#include "Phone_utils.h"
#include "utils.h"
#include "data.h"
#include "cc.h"

#undef LOG_TAG
#define LOG_TAG "MULTI_USER_COMMON"

typedef enum {
    STATE_IN_SERVICE        =0,
    STATE_OUT_OF_SERVICE    =1,
    STATE_EMERGENCY_ONLY    =2,
    STATE_POWER_OFF         =3
} Service_State;

RfDesenseTxTest* m_RfDesense;
static RIL_CardStatus_v6* cur_CardS_Status[2] = {NULL, NULL};
static RIL_RadioCapability radio_capability[2];

static int cur_voice_radio_tech[2] = {RADIO_TECH_UNKNOWN, RADIO_TECH_UNKNOWN};

static int reg_voice_service_state[2] = {0, 0};
static int reg_data_service_state[2] = {0, 0};
static int reg_data_radio_tech[2] = {RADIO_TECH_UNKNOWN, RADIO_TECH_UNKNOWN};
static int reg_voice_radio_tech[2] = {RADIO_TECH_UNKNOWN, RADIO_TECH_UNKNOWN};
static int preferred_network_type[2]  = {Phone_utils::PREFERRED_NETWORK_MODE, Phone_utils::PREFERRED_NETWORK_MODE};
static int radio_status[2] = {RADIO_STATE_UNAVAILABLE, RADIO_STATE_UNAVAILABLE};
static std::vector<int> call_state[2];

static int default_sim_all = RIL_SOCKET_1;
static int default_sim_all_except_data =  RIL_SOCKET_1;
static int default_sim_voice = RIL_SOCKET_1;
static int default_sim_data = RIL_SOCKET_1;
static int default_sim_sms = RIL_SOCKET_1;
static bool isNeedReconnect = false;

static std::int32_t token = 0;
static std::mutex g_mutex;

static int regCodeToRadioTechnology(int request, int code, int slot);

void update_call_state(void *response, size_t responselen, int slot) {
    int num = responselen / sizeof(RIL_Call *);
    if(num == 0) {
        call_state[slot].clear();
        RLOGD("[SIM%d]clear call state", slot);
    } else {
        call_state[slot].clear();
        for (int i = 0 ; i < num ; i++) {
            RIL_Call *p_cur = ((RIL_Call **) response)[i];
            /* each call info */
            call_state[slot].push_back(p_cur->state);
            RLOGD("[SIM%d][id:%d]update_call_state: %d", slot,p_cur->index, p_cur->state);
            if(p_cur->isMT) {
                resetMute();
            }
        }
    }
}

int is_call_state_idle(int slot) {
    bool is_idle = true;
    if(!call_state[slot].empty()) {
        is_idle = false;
    }
    RLOGD("[SIM%d]is_call_state_idle: %d", slot, is_idle);
    return is_idle;
}

void update_preferred_network_type(int type, int slot) {
    RLOGD("[SIM%d]update_preferred_network_type: %d", slot, type);
    preferred_network_type[slot] = type;
}

int get_preferred_network_type(int slot) {
    return preferred_network_type[slot];
}

static int needBlockReq(int request)
{
#ifdef ENABLE_BLOCK_FEATURE
    return 1;
#endif

    switch (request){
        case RIL_REQUEST_RADIO_POWER: return 1;
        case RIL_REQUEST_SET_IMS_ENABLE: return 1;
        //case RIL_REQUEST_DATA_REGISTRATION_STATE: return 1;
        default: return 0;
    }
    return 0;
}

static int setupToken(int token, int mode, int block)
{
    switch (mode){
    case INIT:
        token |= INIT_TOKEN_MARK;
        break;
    case UDP:
        token |= RIL_TOKEN_MARK;
        break;
    case ATCI:
        token |= ATCI_TOKEN_MARK;
        break;
    case RSPD:
        token |= RSP_DISP_TOKEN_MARK;
        break;
    case OTHER:
        token |= OTHER_TOKEN_MARK;
        break;
    default:
        break;
    }

    if(block)
        token |= BLOCK_MARK;

    return token;
}

bool isDataConnectEnable(int slot) {
    char value[PROPERTY_VALUE_MAX] = {0};
    utils::getMSimProperty(slot,PROP_DEFAULT_DATA_SIM_STATUS, value);
    if(atoi(value) == 1)  {
        return true;
    }
    return false;
}

void updataDataConnectState(int slot, bool state) {
    utils::setMSimProperty(slot,PROP_DEFAULT_DATA_SIM_STATUS, const_cast<char*>(state ? "1":"0"));
}

std::int32_t GenerateToken(int mode, int request) {
    g_mutex.lock();
    if (token +1 == TOKEN_MODE) {
        token = 1;
    } else {
        token++;
    }
    std::int32_t t= 0;
    t = setupToken(token,mode,needBlockReq(request));
    g_mutex.unlock();
    return t;
}

RequestInfo* creatRILInfoAndInit(int request, int mode, RIL_SOCKET_ID soc_id)
{
    RequestInfo *pRI  = (RequestInfo *)calloc(1, sizeof(RequestInfo));
    if(pRI ==NULL){
        RLOGE("%s,memory alloc error!",__func__);
        return NULL;
    }
    android::initRequestInfo(pRI,request,mode, soc_id);
    return pRI;
}

void set_default_sim_all_except_data(int slot_id) {
    RLOGD("set_default_sim_all excpet data: %d", slot_id);
    default_sim_all_except_data =  slot_id;
    set_default_sim_voice(slot_id);
    set_default_sim_sms(slot_id);
}

int get_default_sim_all_except_data() {
    return default_sim_all_except_data;
}

void set_default_sim_all(int slot_id){
    RLOGD("set_default_sim_all: %d", slot_id);
    default_sim_all =  slot_id;
    set_default_sim_all_except_data(slot_id);
    set_default_sim_data(slot_id);
}

int get_default_sim_all(){
    return default_sim_all;
}

void set_default_sim_voice(int slot_id){
    RLOGD("set_default_sim_voice: %d", slot_id);
    default_sim_voice = slot_id;
}

int get_default_sim_voice(){
    return default_sim_voice;
}

void set_default_sim_data(int slot) {
    if(get_default_sim_data() != slot) {
        if(isDataConnectEnable(get_default_sim_data())) {
            isNeedReconnect = true;
            deactivateDataCall(0,NULL,(RIL_SOCKET_ID)0,NULL);
        }
        default_sim_data = slot;
        utils::mtk_property_set(PROP_DEFAULT_DATA_SIM, std::to_string(default_sim_data + 1).c_str());
        while(!isRadioAvailable(RIL_SOCKET_ID(slot))) {
            sleep(1);
            RLOGD("[SIM%d]set_default_sim_data(RIL_REQUEST_SET_RADIO_CAPABILITY): wait radio available", slot);
        }
        syncDataSettings(RIL_SOCKET_ID(slot));
        if(utils::is_support_dsds()) {
            Radio_capability_switch_util::sendRadioCapabilityRequest(slot);
        }
    }
}

bool isNeedConnect() {
    return isNeedReconnect;
}

void resetConnect() {
    isNeedReconnect = false;
}
int get_default_sim_data_for_switch() {
    return default_sim_data;
}

int get_default_sim_data(){
    default_sim_data = utils::mtk_property_get_int32(PROP_DEFAULT_DATA_SIM, 1) -1;
    return default_sim_data;
}

void set_default_sim_sms(int slot_id){
    RLOGD("set_default_sim_sms: %d", slot_id);
    default_sim_sms = slot_id;
}

int get_default_sim_sms() {
    return default_sim_sms;
}

static int regCodeToServiceState(int request,int code, int slot);

const char * radioStateToString(RIL_RadioState s) {
    switch (s) {
    case RADIO_STATE_OFF:
        return "RADIO_OFF";
    case RADIO_STATE_UNAVAILABLE:
        return "RADIO_UNAVAILABLE";
    case RADIO_STATE_SIM_NOT_READY:
        return "RADIO_SIM_NOT_READY";
    case RADIO_STATE_SIM_LOCKED_OR_ABSENT:
        return "RADIO_SIM_LOCKED_OR_ABSENT";
    case RADIO_STATE_SIM_READY:
        return "RADIO_SIM_READY";
    case RADIO_STATE_RUIM_NOT_READY:
        return "RADIO_RUIM_NOT_READY";
    case RADIO_STATE_RUIM_READY:
        return "RADIO_RUIM_READY";
    case RADIO_STATE_RUIM_LOCKED_OR_ABSENT:
        return "RADIO_RUIM_LOCKED_OR_ABSENT";
    case RADIO_STATE_NV_NOT_READY:
        return "RADIO_NV_NOT_READY";
    case RADIO_STATE_NV_READY:
        return "RADIO_NV_READY";
    case RADIO_STATE_ON:
        return "RADIO_ON";
    default:
        return "<unknown state>";
    }
}

const char *rilSocketIdToString(RIL_SOCKET_ID socket_id) {
    switch (socket_id) {
    case RIL_SOCKET_1:
        return "RIL_SOCKET_1";
#if (SIM_COUNT >= 2)
    case RIL_SOCKET_2:
        return "RIL_SOCKET_2";
#endif
#if (SIM_COUNT >= 3)
        case RIL_SOCKET_3:
        return "RIL_SOCKET_3";
#endif
#if (SIM_COUNT >= 4)
        case RIL_SOCKET_4:
        return "RIL_SOCKET_4";
#endif
    default:
        return "not a valid RIL";
    }
}

void update_radio_capa(RIL_RadioCapability* cap, int slot) {
    memset(&radio_capability[slot], 0, sizeof(RIL_RadioCapability));
    if(cap != NULL) {
        strcpy(radio_capability[slot].logicalModemUuid,cap->logicalModemUuid);
        radio_capability[slot].phase = cap->phase;
        radio_capability[slot].rat = cap->rat;
        radio_capability[slot].session = cap->session;
        radio_capability[slot].status = cap->status;
        radio_capability[slot].version = cap->version;
    }
}

RIL_RadioCapability get_radio_capa(int slot) {
    return radio_capability[slot];
}

void update_voice_radio_tech(int code, int slot) {
    cur_voice_radio_tech[slot] = code;
}

int get_voice_radio_tech(int slot){
    return cur_voice_radio_tech[slot];
}

void updateCardStatusV6(RIL_CardStatus_v6 *card_status,int slot)
{
    if(cur_CardS_Status[slot] != NULL) {
        RLOGD("[slot%d]updateCardStatusV6", slot);
        for(int i = 0; i < cur_CardS_Status[slot]->num_applications; i++) {
        free(cur_CardS_Status[slot]->applications[i].aid_ptr);
        cur_CardS_Status[slot]->applications[i].aid_ptr = NULL;
        free(cur_CardS_Status[slot]->applications[i].app_label_ptr);
        cur_CardS_Status[slot]->applications[i].app_label_ptr = NULL;
        }
        free(cur_CardS_Status[slot]);
        cur_CardS_Status[slot] = NULL;
    }
    cur_CardS_Status[slot] = (RIL_CardStatus_v6 *)calloc(1, sizeof(RIL_CardStatus_v6));
    memset(cur_CardS_Status[slot], 0, sizeof(RIL_CardStatus_v6));
    cur_CardS_Status[slot]->card_state = card_status->card_state;
    cur_CardS_Status[slot]->cdma_subscription_app_index = card_status->cdma_subscription_app_index;
    cur_CardS_Status[slot]->gsm_umts_subscription_app_index = card_status->gsm_umts_subscription_app_index;
    cur_CardS_Status[slot]->ims_subscription_app_index = card_status->ims_subscription_app_index;
    cur_CardS_Status[slot]->num_applications = card_status->num_applications;
    cur_CardS_Status[slot]->universal_pin_state = card_status->universal_pin_state;
    RLOGD("[slot%d]updateCardStatusV6 card_state: %d, cdma_index: %d, gsm_index: %d, "
            "ims_index: %d, num_applications: %d, universal_pin_state: %d",
            slot,
            cur_CardS_Status[slot]->card_state,
            cur_CardS_Status[slot]->cdma_subscription_app_index,
            cur_CardS_Status[slot]->gsm_umts_subscription_app_index,
            cur_CardS_Status[slot]->ims_subscription_app_index,
            cur_CardS_Status[slot]->num_applications,
            cur_CardS_Status[slot]->universal_pin_state);
    if(card_status)
    {
        for(int i = 0; i < card_status->num_applications; i++) {
            cur_CardS_Status[slot]->applications[i].app_state       = card_status->applications[i].app_state;
            cur_CardS_Status[slot]->applications[i].app_type        = card_status->applications[i].app_type;
            cur_CardS_Status[slot]->applications[i].perso_substate  = card_status->applications[i].perso_substate;
            cur_CardS_Status[slot]->applications[i].pin1            = card_status->applications[i].pin1;
            cur_CardS_Status[slot]->applications[i].pin1_replaced   = card_status->applications[i].pin1_replaced;
            cur_CardS_Status[slot]->applications[i].pin2            = card_status->applications[i].pin2;
            cur_CardS_Status[slot]->applications[i].aid_ptr = strdup(card_status->applications[i].aid_ptr);
            cur_CardS_Status[slot]->applications[i].app_label_ptr = strdup(card_status->applications[i].app_label_ptr);
        }
    } else {
        RLOGD("[slot%d]updateCardStatusV6: sim card message is null", slot);
    }
}

char* getAid(int slot)
{
    char* aid = "";
    int index = -1;
    if(cur_CardS_Status[slot] != NULL){
        if(Phone_utils::get_phone_type(slot) == Phone_utils::PHONE_TYPE_CDMA) {
            index = cur_CardS_Status[slot]->cdma_subscription_app_index;
        } else {
            index = cur_CardS_Status[slot]->gsm_umts_subscription_app_index;
        }
        if(index >= 0 && index < cur_CardS_Status[slot]->num_applications) {
            aid =  cur_CardS_Status[slot]->applications[index].aid_ptr;
        }
    }
    RLOGD("[slot%d] index: %d, getAid: %s", slot, index, aid);
    return aid;
}

void update_reg_voice_service_state(int request, char *code, int slot, int32_t token)
{
    if((reg_voice_service_state[slot] != atoi(code)) || ((token&RIL_TOKEN_MARK) == RIL_TOKEN_MARK)) {
        reg_voice_service_state[slot] = atoi(code);
        regCodeToServiceState(request, atoi(code), slot);
    }
}

void update_reg_voice_radio_tech(int request, int code, int slot, int32_t token) {
    if((reg_voice_radio_tech[slot] != code) || ((token&RIL_TOKEN_MARK) == RIL_TOKEN_MARK)){
        reg_voice_radio_tech[slot] = code;
        regCodeToRadioTechnology(request, code, slot);
    }
}

void update_reg_data_service_state(int request, char *code,int slot, int32_t token)
{
    if((reg_data_service_state[slot] != atoi(code)) || ((token&RIL_TOKEN_MARK) == RIL_TOKEN_MARK)) {
        reg_data_service_state[slot] = atoi(code);
        regCodeToServiceState(request, atoi(code), slot);
    }
}

void update_reg_data_radio_tech(int request, int code, int slot, int32_t token){
    if((reg_data_radio_tech[slot] != code) || ((token&RIL_TOKEN_MARK) == RIL_TOKEN_MARK)) {
        reg_data_radio_tech[slot] = code;
        regCodeToRadioTechnology(request, code, slot);
    }
}

void registerRadioOn(RfDesenseTxTest* rf){
    if(!m_RfDesense) {
        m_RfDesense = rf;
    }
}

void unregisterRadioOn() {
    if(m_RfDesense) {
        m_RfDesense == NULL;
    }
}

void registerRadioOffOrNotAvailable(RfDesenseTxTest* rf){
    if(!m_RfDesense) {
        m_RfDesense = rf;
    }
}

void unregisterRadioOffOrNotAvailable() {
    if(m_RfDesense) {
        m_RfDesense == NULL;
    }
}

void registerOnUnsolOemHookRaw(RfDesenseTxTest* rf){
    if(!m_RfDesense) {
        m_RfDesense = rf;
    }
}

void unregisterOnUnsolOemHookRaw(){
    if(m_RfDesense) {
        m_RfDesense == NULL;
    }
}

void register_response_oem_hook_raw(RfDesenseTxTest* rf){
    if(!m_RfDesense) {
        m_RfDesense = rf;
    }
}

void unregister_response_oem_hook_raw(){
    if(m_RfDesense) {
        m_RfDesense == NULL;
    }
}

void updateRadioStatus(int newValue ,RIL_SOCKET_ID soc_id)
{
    RLOGD("updateRadioStatus oldState: %d, newState: %d", radio_status[soc_id], newValue);
    bool newOn = (newValue == RADIO_STATE_ON);
    bool oldOn = (radio_status[soc_id] == RADIO_STATE_ON);
    bool newAvaiable = (newValue != RADIO_STATE_UNAVAILABLE);
    bool oldAvaiable = (radio_status[soc_id] != RADIO_STATE_UNAVAILABLE);
    if (newOn && !oldOn) {
        RLOGD("RadioStateOn");
        //printf("[SIM%d] radio on\n",soc_id +1);
        if(m_RfDesense){
            m_RfDesense->emRadioStateOn();
        }
    }

    if ((!newOn || !newAvaiable) && !((!oldOn || !oldAvaiable))) {
        RLOGD("RadioStateOfforNotAvailable");
        //printf("[SIM%d] radio off or not available\n",soc_id +1);
        if(m_RfDesense){
            m_RfDesense->emRadioStateOfforNotAvailable();
        }
    }
    if(newValue != radio_status[soc_id]) {
        radio_status[soc_id] = newValue;
    }
}

bool isRadioOn(RIL_SOCKET_ID soc_id)
{
    return radio_status[soc_id] == RADIO_STATE_ON;
}

bool isRadioAvailable(RIL_SOCKET_ID soc_id)
{
    return radio_status[soc_id] != RADIO_STATE_UNAVAILABLE;
}

static int regCodeToServiceState(int request,int code, int slot)
{
    RLOGD("[slot%d]regCodeToServiceState %d, request: %s",slot, code, android::requestToString(request));
    switch (code)
    {
        case 0:
        case 2: // 2 is "searching"
        case 3: // 3 is "registration denied"
        case 4: // 4 is "unknown" no vaild in current baseband
        case 10:// same as 0, but indicates that emergency call is possible.
        case 12:// same as 2, but indicates that emergency call is possible.
        case 13:// same as 3, but indicates that emergency call is possible.
        case 14:// same as 4, but indicates that emergency call is possible.
        {
            if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
                printf("[Muser:%d][VOICE REG_STATUS][SIM%d] The current service state is OUT OF SERVICE\n", getpid(), slot);
            } else {
                printf("[Muser:%d][DATA  REG_STATUS][SIM%d] The current service state is OUT OF SERVICE\n", getpid(), slot);
            }
            return STATE_OUT_OF_SERVICE;
        }

        case 1:
        case 5:
        {
            if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
                printf("[Muser:%d][VOICE REG_STATUS][SIM%d] The current service state is IN SERVICE\n",getpid(), slot);
            } else {
                printf("[Muser:%d][DATA  REG_STATUS][SIM%d] The current service state is IN SERVICE\n", getpid(),slot);
            }
            return STATE_IN_SERVICE;
        }

        default:
        {
            if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
                printf("[Muser:%d][VOICE REG_STATUS][SIM%d] Unexpected service state %d\n", getpid(), slot, code);
            } else {
                printf("[Muser:%d][DATA  REG_STATUS][SIM%d] Unexpected service state %d\n", getpid(), slot, code);
            }
            RLOGW("[SIM%d]regCodeToServiceState: unexpected service state %d", slot, code);
            return STATE_OUT_OF_SERVICE;
        }
    }
}

static int regCodeToRadioTechnology(int request, int code, int slot) {
    RLOGD("[slot%d]regCodeToRadioTechnology %d, request: %s",slot, code, android::requestToString(request));
    switch(code) {
    case RADIO_TECH_LTE:
    {
        if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
            printf("[Muser:%d][VOICE REG_STATUS][SIM%d] The registered radio technology is 4G\n", getpid(), slot);
        } else {
            printf("[Muser:%d][DATA  REG_STATUS][SIM%d] The registered radio technology is 4G\n", getpid(), slot);
        }
        break;
    }
    case RADIO_TECH_GSM:
    case RADIO_TECH_GPRS:
    case RADIO_TECH_EDGE:
    case RADIO_TECH_IS95A:
    case RADIO_TECH_IS95B:
    case RADIO_TECH_1xRTT:
    {
        if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
            printf("[Muser:%d][VOICE REG_STATUS][SIM%d] The registered radio technology is 2G\n", getpid(), slot);
        } else {
            printf("[Muser:%d][DATA  REG_STATUS][SIM%d] The registered radio technology is 2G\n", getpid(), slot);
        }
        break;
    }
    case RADIO_TECH_UMTS:
    case RADIO_TECH_HSDPA:
    case RADIO_TECH_HSUPA:
    case RADIO_TECH_HSPA:
    case RADIO_TECH_EHRPD:
    case RADIO_TECH_HSPAP:
    case RADIO_TECH_TD_SCDMA:
    case RADIO_TECH_EVDO_0:
    case RADIO_TECH_EVDO_A:
    case RADIO_TECH_EVDO_B:
    {
        if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
            printf("[Muser:%d][VOICE REG_STATUS][SIM%d] The registered radio technology is 3G\n", getpid(), slot);
        } else {
            printf("[Muser:%d][DATA  REG_STATUS][SIM%d] The registered radio technology is 3G\n", getpid(), slot);
        }
        break;
    }
    case RADIO_TECH_UNKNOWN:
    {
        if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
            printf("[Muser:%d][VOICE REG_STATUS][SIM%d] The registered radio technology is unknown\n", getpid(), slot);
        } else {
            printf("[Muser:%d][DATA  REG_STATUS][SIM%d] The registered radio technology is unknown\n", getpid(), slot);
        }
        break;
    }
    default:
    {
        if(request == RIL_REQUEST_VOICE_REGISTRATION_STATE) {
            printf("[Muser:%d][VOICE REG_STATUS][SIM%d] %d is unexpected value\n",getpid(), slot, code);
        } else {
            printf("[Muser:%d][DATA  REG_STATUS][SIM%d] %d is unexpected value\n",getpid(), slot, code);
        }
    }
    }
    return 0;
}

int get_reg_data_radio_tech(int slot) {
    return reg_data_radio_tech[slot];
}

int get_reg_voice_radio_tech(int slot) {
    return reg_voice_radio_tech[slot];
}

#ifdef ECALL_SUPPORT
void ConvertMsd(const char *msdChar, unsigned char *msd) {
  unsigned int n, x;

  for (n = 0; n < MSD_MAX_LENGTH; n++) {
    if (sscanf(&msdChar[n<<1], "%2x", &x) == 1) {
        msd[n] = x;
    } else {
        RLOGE("invalid MSD characters");
        break;
    }
  }
}
#endif /*ECALL_SUPPORT*/

bool isFinalResponseErrorEx(char* str) {
    AtLine atline(str, NULL);
    return (atline.isFinalResponseErrorEx(0) == 1 ? true : false);
}

int get_atci_sim(){
    return utils::mtk_property_get_int32(ATCI_SIM, 0);
}

static char *findNextChar(char *p, char c, int length)
{
    char *ptr = p;
    int i = 0;
    while (i++ < length)
    {
        if (*ptr++ == c)
            return ptr;
    }
    return NULL;
}

static int getGMTval(char *pdata)
{
    char *ptr;
    ptr = findNextChar(pdata, '+', strlen(pdata));
    if (ptr == NULL)
    {
        ptr = findNextChar(pdata, '-', strlen(pdata));
        if (ptr == NULL)
        {
            return 0;
        }
    }
    return atoi(ptr);
}

static void adjustGMT2LocalTime(struct tm *src, int dGMTval)
{
    time_t t1, t2;
    struct tm * ptm;
    char buf[255];
    int dShiftSec;

    dShiftSec = dGMTval * 15 * 60;
    t1 = mktime(src);
    t2 = (time_t)(t1 + dShiftSec);
    ptm = gmtime(&t2);

    memcpy(src, ptm, sizeof(struct tm));
}

void updateSystemTime(const void *data, int datalen)
{
    char strTime[32];
    struct tm tm;
    time_t t;
    int dGMTval;

    if (data == NULL || datalen <= 0)
        return;

    memset(strTime, 0, sizeof(strTime));
    strcat(strTime, "20");
    strcat(strTime, (const char *)data);

    dGMTval = getGMTval(strTime);
    memset(&tm, 0, sizeof(struct tm));
    strptime(strTime, "%Y/%m/%d,%H:%M:%S", &tm);

    adjustGMT2LocalTime(&tm, dGMTval);

    t = mktime(&tm);
    stime(&t);

    return;
}