Squashed 'tmk_core/' changes from 7967731..b9e0ea0

b9e0ea0 Merge commit '7fa9d8bdea3773d1195b04d98fcf27cf48ddd81d' as 'tool/mbed/mbed-sdk'
7fa9d8b Squashed 'tool/mbed/mbed-sdk/' content from commit 7c21ce5

git-subtree-dir: tmk_core
git-subtree-split: b9e0ea08cb940de20b3610ecdda18e9d8cd7c552

tool/mbed/mbed-sdk/libraries/tests/net/helloworld/udpclient/main.cpp

@@ -0,0 +1,56 @@
+#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);
+}