1 files changed, 34 insertions, 0 deletions
diff --git a/ports/winnt/libntp/SetSystemTime.c b/ports/winnt/libntp/SetSystemTime.c
new file mode 100644
index 000000000000..8cb43173f22e
--- /dev/null
+++ b/ports/winnt/libntp/SetSystemTime.c
@@ -0,0 +1,34 @@
+
+#include <config.h>
+
+#include "clockstuff.h"
+#include "ntp_stdlib.h"
+#include "ntp_unixtime.h"
+
+pset_tod_using		set_tod_using = NULL;
+
+int
+ntp_set_tod(
+	struct timeval *tv,
+	void *tzp
+	)
+{
+	SYSTEMTIME st;
+	union {
+		FILETIME ft;
+		ULONGLONG ull;
+	} t;
+
+	UNUSED_ARG(tzp);
+
+	t.ull = FILETIME_1970 +
+		(ULONGLONG)tv->tv_sec * 10 * 1000 * 1000 +
+		(ULONGLONG)tv->tv_usec * 10;
+
+	if (!FileTimeToSystemTime(&t.ft, &st) || !SetSystemTime(&st)) {
+		msyslog(LOG_ERR, "SetSystemTime failed: %m");
+		return -1;
+	}
+
+	return 0;
+}