C++ Endpoint::get_address方法代码示例

void udp_server_task(void const *argument)
{
    DigitalOut indicator(LED1);
    UDPSocket server;

    server.bind(ECHO_SERVER_PORT);
    // printf("[udp_server_task] Start\r\n");

    Endpoint client;
    char buffer[BUFFER_SIZE] = { 0 };
    while (true) {
        //printf("[udp_server_task] Wait for packet...\r\n");
        int n = server.receiveFrom(client, buffer, sizeof(buffer));
        if (n > 0) {
            //printf("[udp_server_task] Received packet from: %s\r\n", client.get_address());
            const int buffer_string_end_index = n >= BUFFER_SIZE ? BUFFER_SIZE - 1 : n;
            buffer[buffer_string_end_index] = '\0';
            //printf("[udp_server_task] Server received: %s\r\n", buffer);
            if (host_port == 0) {
                strcpy(host_address, client.get_address());
                host_port = ECHO_SERVER_PORT + 1;
                //printf("[udp_server_task] Set host address and port: %s:%d\r\n", host_address, host_port);
            }
            // Dispatch data to client for sending to test HOST
            cli_serv_mutex.lock(); // LOCK
            // Push to datagram queue
            datagram_queue.push_front(std::string(buffer));
            max_queue_len = datagram_queue.size() > max_queue_len ? datagram_queue.size() : max_queue_len;
            received_packets++;
            cli_serv_mutex.unlock(); // LOCK
            indicator = !indicator;
        }
    }
}

int main (void) {
    EthernetInterface eth;
    eth.init(); //Use DHCP
    eth.connect();
    printf("IP Address is %s\n", eth.getIPAddress());
    
    UDPSocket server;
    server.bind(ECHO_SERVER_PORT);
    
    Endpoint client;
    char buffer[256];
    while (true) {
        printf("\nWait for packet...\n");
        int n = server.receiveFrom(client, buffer, sizeof(buffer));
        
        printf("Received packet from: %s\n", client.get_address());
        server.sendTo(client, buffer, n);
    }
}

int main() {
    bool result = false;
    EthernetInterface eth;
    eth.init(); //Use DHCP
    eth.connect();
    printf("UDP client IP Address is %s\n", eth.getIPAddress());

    UDPSocket sock;
    sock.init();

    Endpoint nist;
    nist.set_address(HTTP_SERVER_NAME, HTTP_SERVER_PORT);

    char out_buffer[] = "plop"; // Does not matter
    sock.sendTo(nist, out_buffer, sizeof(out_buffer));

    union {
        char in_buffer_tab[4];
        unsigned int in_buffer_uint;
    };

    const int n = sock.receiveFrom(nist, in_buffer_tab, sizeof(in_buffer_tab));
    if (n > 0) {
        result = true;
        const unsigned int timeRes = ntohl(in_buffer_uint);
        const float years = timeRes / 60.0 / 60.0 / 24.0 / 365;
        printf("UDP: Received %d bytes from server %s on port %d\r\n", n, nist.get_address(), nist.get_port());
        printf("UDP: %u seconds since 01/01/1900 00:00 GMT ... %s\r\n", timeRes, timeRes > 0 ? "[OK]" : "[FAIL]");
        printf("UDP: %.2f years since 01/01/1900 00:00 GMT ... %s\r\n", years, timeRes > YEARS_TO_PASS ? "[OK]" : "[FAIL]");

        if (years < YEARS_TO_PASS) {
            result = false;
        }
    }
    sock.close();
    eth.disconnect();
    notify_completion(result);
    return 0;
}

int main (void) {
    EthernetInterface eth;
    eth.init(); //Use DHCP
    eth.connect();
    printf("Server IP Address is %s:%d\n", eth.getIPAddress(), ECHO_SERVER_PORT);
    
    UDPSocket server;
    server.bind(ECHO_SERVER_PORT);
    
    Endpoint client;
    char buffer[BUFFER_SIZE] = {0};
    while (true) {
        printf("Wait for packet...\n");
        int n = server.receiveFrom(client, buffer, sizeof(buffer));
        if (n > 0) {
            printf("Received packet from: %s\n", client.get_address());
            const int buffer_string_end_index = n >= BUFFER_SIZE ? BUFFER_SIZE-1 : n;
            buffer[buffer_string_end_index] = '\0';
            printf("Server received: %s\n", buffer);
            server.sendTo(client, buffer, n);
        }
    }
}

bool UDPSocket::confEndpoint(Endpoint & ep)
{
    char * host;
    char cmd[30];
    if (!endpoint_configured) {
        host = ep.get_address();
        if (host[0] != '\0') {
            // set host
            sprintf(cmd, "set i h %s\r", host);
            if (!wifi->sendCommand(cmd, "AOK"))
                return false;
                
            // set remote port
            sprintf(cmd, "set i r %d\r", ep.get_port());
            if (!wifi->sendCommand(cmd, "AOK"))
                return false;
                
            wifi->exit();
            endpoint_configured = true;
            return true;
        }
    }
    return true;
}

NTPResult NTPClient::setTime(const char* host, uint16_t port, uint32_t timeout)
{
#ifdef __DEBUG__
  time_t ctTime;
  ctTime = time(NULL);
  DBG("Time is set to (UTC): %s", ctime(&ctTime));
#endif

  //Create & bind socket
  DBG("Binding socket");
  m_sock.bind(0); //Bind to a random port
  
  m_sock.set_blocking(false, timeout); //Set not blocking

  struct NTPPacket pkt;

  //Now ping the server and wait for response
  DBG("Ping");
  //Prepare NTP Packet:
  pkt.li = 0; //Leap Indicator : No warning
  pkt.vn = 4; //Version Number : 4
  pkt.mode = 3; //Client mode
  pkt.stratum = 0; //Not relevant here
  pkt.poll = 0; //Not significant as well
  pkt.precision = 0; //Neither this one is

  pkt.rootDelay = 0; //Or this one
  pkt.rootDispersion = 0; //Or that one
  pkt.refId = 0; //...

  pkt.refTm_s = 0;
  pkt.origTm_s = 0;
  pkt.rxTm_s = 0;
  pkt.txTm_s = htonl( NTP_TIMESTAMP_DELTA + time(NULL) ); //WARN: We are in LE format, network byte order is BE

  pkt.refTm_f = pkt.origTm_f = pkt.rxTm_f = pkt.txTm_f = 0;

  Endpoint outEndpoint;
  
  if( outEndpoint.set_address(host, port) < 0)
  {
    m_sock.close();
    return NTP_DNS;
  }
  
  //Set timeout, non-blocking and wait using select
  int ret = m_sock.sendTo( outEndpoint, (char*)&pkt, sizeof(NTPPacket) );
  if (ret < 0 )
  {
    ERR("Could not send packet");
    m_sock.close();
    return NTP_CONN;
  }

  //Read response
  Endpoint inEndpoint;

  DBG("Pong");
  do
  {
    ret = m_sock.receiveFrom( inEndpoint, (char*)&pkt, sizeof(NTPPacket) ); //FIXME need a DNS Resolver to actually compare the incoming address with the DNS name
    if(ret < 0)
    {
      ERR("Could not receive packet");
      m_sock.close();
      return NTP_CONN;
    }
  } while( strcmp(outEndpoint.get_address(), inEndpoint.get_address()) != 0 );

  if(ret < sizeof(NTPPacket)) //TODO: Accept chunks
  {
    ERR("Receive packet size does not match");
    m_sock.close();
    return NTP_PRTCL;
  }

  if( pkt.stratum == 0)  //Kiss of death message : Not good !
  {
    ERR("Kissed to death!");
    m_sock.close();
    return NTP_PRTCL;
  }

  //Correct Endianness
  pkt.refTm_s = ntohl( pkt.refTm_s );
  pkt.refTm_f = ntohl( pkt.refTm_f );
  pkt.origTm_s = ntohl( pkt.origTm_s );
  pkt.origTm_f = ntohl( pkt.origTm_f );
  pkt.rxTm_s = ntohl( pkt.rxTm_s );
  pkt.rxTm_f = ntohl( pkt.rxTm_f );
  pkt.txTm_s = ntohl( pkt.txTm_s );
  pkt.txTm_f = ntohl( pkt.txTm_f );

  //Compute offset, see RFC 4330 p.13
  uint32_t destTm_s = (NTP_TIMESTAMP_DELTA + time(NULL));
  int64_t offset = ( (int64_t)( pkt.rxTm_s - pkt.origTm_s ) + (int64_t) ( pkt.txTm_s - destTm_s ) ) / 2; //Avoid overflow
  DBG("Sent @%ul", pkt.txTm_s);
  DBG("Offset: %lld", offset);
  //Set time accordingly
  set_time( time(NULL) + offset );
//.........这里部分代码省略.........

int main()
{
    int result;

    lwm2m_object_t * objArray[4];

    printf("Start\n");
    ethSetup();

    printf("Initializing tinydtls\n");

    // fake loading of PSK..
    psk_id_length = strlen(PSK_DEFAULT_IDENTITY);
    psk_key_length = strlen(PSK_DEFAULT_KEY);
    memcpy(psk_id, PSK_DEFAULT_IDENTITY, psk_id_length);
    memcpy(psk_key, PSK_DEFAULT_KEY, psk_key_length);
    printf("Init\n");

    dtls_init();
    printf("New context\n");
    dtls_context = dtls_new_context(&lwm2mH);

    if (dtls_context == NULL) {
        printf("error creating the dtls context\n");
    }
    printf("Setting handlers\n");

    dtls_set_handler(dtls_context, &cb);

    if (!dtls_context) {
        printf("can't create dtls_context\n");
        exit(-1);
    }

    printf("Initialazing Wakaama\n");

    // create objects
    objArray[0] = get_security_object(123, "coaps://5.39.83.206:5684", false);
    securityObjP = objArray[0];

    objArray[1] = get_server_object(123, "U", 20, false);
    serverObject = objArray[1];
    objArray[2] = get_object_device();
    objArray[3] = get_object_firmware();

    /*
     * The liblwm2m library is now initialized with the functions that will be in
     * charge of communication
     */
    lwm2mH = lwm2m_init(prv_connect_server, prv_buffer_send, NULL);
    if (NULL == lwm2mH)
    {
        fprintf(stderr, "lwm2m_init() failed\r\n");
        return -1;
    }

    // configure the liblwm2m lib

    result = lwm2m_configure(lwm2mH, "julien", NULL, 4, objArray);

    if (result != 0)
    {
        printf("lwm2m_configure() failed: 0x%X\n", result);
        return -1;
    }

    // start

    result = lwm2m_start(lwm2mH);
    if (result != 0)
    {
        printf("lwm2m_start() failed: 0x%X\n", result);
        return -1;
    }

    // main loop

    while (true) {
        char buffer[1024];
        Endpoint server;

        printf("loop...\n");
        struct timeval timeout;
        timeout.tv_sec = 10;
        timeout.tv_usec = 0;

        result = lwm2m_step(lwm2mH, &timeout);
        if (result != 0)
        {
            printf("lwm2m_step error %d\n", result);
        }
        int n = udp.receiveFrom(server, buffer, sizeof(buffer));
        printf("Received packet from: %s of size %d\n", server.get_address(), n);
        if (n>0) {
            // TODO: find connection
            connection_t * connP = connList;
            while(connP != NULL) {
                if (strcmp(connP->host, server.get_address()) == 0)
                {

//.........这里部分代码省略.........