File content as of revision 2:a325d3d7d2a0:

#include "mbed.h"
#include "EthernetInterface.h"
#include "HTTPClient.h"

#define SHARED_LINK "https://www.dropbox.com/s/m856g2irwzb68uv/test.txt?dl=0"

extern HTTPResult dropbox_get(const char *url, char *buff, int size) ;

EthernetInterface eth;
HTTPClient http;
char recvBuff[1024*20];

int main()
{
    HTTPResult ret ;

    eth.init(); //Use DHCP
    printf("Dropbox Shared Link, Starting,...\n") ;

    while(1) {
        if(eth.connect() == 0)break ;
        printf("Retry\n") ;
    }
    printf("HTTP Client, IP Address is %s\n", eth.getIPAddress());

    printf("Shared Link: %s\n", SHARED_LINK);
    memset(recvBuff, '\0', sizeof(recvBuff)) ;
    ret = dropbox_get(SHARED_LINK, recvBuff, sizeof(recvBuff));
    if (ret == HTTP_OK) {
        printf("Result: %s\n", recvBuff);
    } else {
        printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());
    }

    eth.disconnect();

    while(1) {
    }
}