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#include "mbed.h"
#include "EthernetInterface.h"
#include "test_env.h"
namespace {
const char *HTTP_SERVER_NAME = "utcnist.colorado.edu";
const int HTTP_SERVER_PORT = 37;
const float YEARS_TO_PASS = 114.0;
}
int main() {
MBED_HOSTTEST_TIMEOUT(20);
MBED_HOSTTEST_SELECT(default_auto);
MBED_HOSTTEST_DESCRIPTION(NIST Internet Time Service);
MBED_HOSTTEST_START("NET_2");
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 / 365.0;
const float days = timeRes / 24.0 / 60.0 / 60.0;
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 days since 01/01/1900 00:00 GMT ... %s\r\n", days, 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();
MBED_HOSTTEST_RESULT(result);
}
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