The WDCInterface is is a drop-in replacement for an EthernetInterface class that allows the user to connect to the Internet with a Wistron NeWeb Corporation (WNC) M14A2A Series data module using the standard network Socket API's. This interface class is used in the AT&T Cellular IoT Starter Kit which is sold by Avnet (http://cloudconnectkits.org/product/att-cellular-iot-starter-kit).

Dependencies:   WncControllerK64F

Dependents:   WNCProximityMqtt Pubnub_ATT_IoT_SK_WNC_sync BluemixDemo BluemixQS ... more

See the WNCInterface README in the Wiki tab for detailed information on this library.

Socket/WncEndpoint.cpp

Committer:
JMF
Date:
2017-03-24
Revision:
29:b278b745fb4f
Parent:
27:2dc9461c04dc

File content as of revision 29:b278b745fb4f:

/* =====================================================================
   Copyright © 2016, Avnet (R)

   Contributors:
     * James M Flynn, www.em.avnet.com 
 
   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          WNCInterface.cpp
    @version       1.0
    @date          Sept 2016

======================================================================== */

#include "../WNCInterface.h"
#include "WncSocket.h"
#include "WncEndpoint.h"

WncEndpoint::WncEndpoint()  {
    reset_address();
}

WncEndpoint::~WncEndpoint() {}

void WncEndpoint::reset_address(void) {
    std::memset(&_epAddr, 0, sizeof(struct EndPointAddr));
}

//
// It is possible to call set_address with either a URL or
// an IP address.  So try each in-turn and set the end point
// address.
//

int WncEndpoint::set_address(const char* host, const int port) {
     // IP Address
    char address[5];
    int rslt;

   CHK_WNCFE(( WNCInterface::_pwnc->getWncStatus() == FATAL_FLAG ), fail);

   reset_address();
    _epAddr.port = port;  //go ahead and save the port 
    
    // Dot-decimal notation?
    rslt = std::sscanf(host, "%3u.%3u.%3u.%3u",
            (unsigned int*)&address[0], (unsigned int*)&address[1],
            (unsigned int*)&address[2], (unsigned int*)&address[3]);

    M_LOCK;
    if (rslt != 4)    // No, need to resolve address with DNS
        WNCInterface::_pwnc->resolveUrl(0,host);
    else
        WNCInterface::_pwnc->setIpAddr(0,host);
    
    rslt = WNCInterface::_pwnc->getIpAddr(0,_epAddr.IP);
    M_ULOCK;
    return rslt;
}

char* WncEndpoint::get_address() {
    return _epAddr.IP;
}

int   WncEndpoint::get_port() {
    return _epAddr.port;
}