File content as of revision 26:4242277cf9c7:

/* NetworkSocketAPI Example Program
 * Copyright (c) 2015 ARM Limited
 *
 * 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 "mbed.h"
#include "ESP8266Interface.h"

DigitalOut myled(LED1);
void flash(){myled = !myled;}

ESP8266Interface wifi(D1, D0);

int main()
{
    Ticker t;
    t.attach(flash, 0.4f);
    printf("NetworkSocketAPI Example\r\n");

    wifi.init();
    wifi.connect("Lakehouse", "Sandcastle");
    
    char* ip = wifi.getIPAddress();
    printf("IP Address is: %s\n", (ip) ? ip : "No IP");
    char host_ip[50];
    wifi.getHostByName("time-a.nist.gov", host_ip);
    printf("time-a.nist.gov resolved to: %s\n", host_ip);

    SocketInterface* mySocket = wifi.allocateSocket(SOCK_TCP);
    char recieved[100] = {0};
    int recv_amnt = 0;
    
    //Sending and receiving from echo server 
    //mySocket->setAddressPort("129.6.15.28", 37);
    mySocket->setAddressPort(host_ip, 37);
    mySocket->open();
    //mySocket->send("xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx", 50, 10000);
    recv_amnt = mySocket->recv(recieved, sizeof(recieved), 10000);
    mySocket->close();
    wifi.disconnect();
    
    printf("Recieved: %d bytes, %02x%02x%02x%02x\n", recv_amnt, recieved[0], recieved[1], recieved[2], recieved[3]);
    printf("NetworkSocketAPI Example Finished\r\n");
    while(1);
}