57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
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#include "mbed.h"
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#include "EthernetInterface.h"
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#include "test_env.h"
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namespace {
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const char *HTTP_SERVER_NAME = "utcnist.colorado.edu";
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const int HTTP_SERVER_PORT = 37;
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const float YEARS_TO_PASS = 114.0;
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}
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int main() {
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MBED_HOSTTEST_TIMEOUT(20);
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MBED_HOSTTEST_SELECT(default_auto);
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MBED_HOSTTEST_DESCRIPTION(NIST Internet Time Service);
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MBED_HOSTTEST_START("NET_2");
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bool result = false;
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EthernetInterface eth;
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eth.init(); //Use DHCP
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eth.connect();
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printf("UDP client IP Address is %s\n", eth.getIPAddress());
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UDPSocket sock;
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sock.init();
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Endpoint nist;
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nist.set_address(HTTP_SERVER_NAME, HTTP_SERVER_PORT);
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char out_buffer[] = "plop"; // Does not matter
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sock.sendTo(nist, out_buffer, sizeof(out_buffer));
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union {
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char in_buffer_tab[4];
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unsigned int in_buffer_uint;
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};
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const int n = sock.receiveFrom(nist, in_buffer_tab, sizeof(in_buffer_tab));
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if (n > 0) {
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result = true;
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const unsigned int timeRes = ntohl(in_buffer_uint);
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const float years = timeRes / 60.0 / 60.0 / 24.0 / 365.0;
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const float days = timeRes / 24.0 / 60.0 / 60.0;
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printf("UDP: Received %d bytes from server %s on port %d\r\n", n, nist.get_address(), nist.get_port());
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printf("UDP: %u seconds since 01/01/1900 00:00 GMT ... %s\r\n", timeRes, timeRes > 0 ? "[OK]" : "[FAIL]");
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printf("UDP: %.2f days since 01/01/1900 00:00 GMT ... %s\r\n", days, timeRes > 0 ? "[OK]" : "[FAIL]");
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printf("UDP: %.2f years since 01/01/1900 00:00 GMT ... %s\r\n", years, timeRes > YEARS_TO_PASS ? "[OK]" : "[FAIL]");
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if (years < YEARS_TO_PASS) {
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result = false;
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}
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}
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sock.close();
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eth.disconnect();
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MBED_HOSTTEST_RESULT(result);
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}
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