1 files changed, 41 insertions, 0 deletions
diff --git a/contrib/ntp/libntp/gpstolfp.c b/contrib/ntp/libntp/gpstolfp.c
new file mode 100644
index 0000000..cf7b80c
--- /dev/null
+++ b/contrib/ntp/libntp/gpstolfp.c
@@ -0,0 +1,41 @@
+/*
+ * /src/NTP/ntp-4/libntp/gpstolfp.c,v 4.3 1999/02/28 11:42:44 kardel RELEASE_19990228_A
+ *
+ * $Created: Sun Jun 28 16:30:38 1998 $
+ *
+ * Copyright (C) 1998 by Frank Kardel
+ */
+#include "ntp_fp.h"
+
+#define GPSORIGIN	(unsigned)(2524953600L)  /* NTP origin - GPS origin in seconds */
+#define SECSPERWEEK	(unsigned)(604800)	/* seconds per week - GPS tells us about weeks */
+#define GPSWRAP		990	/* assume week count less than this in the previous epoch */
+
+void
+gpstolfp(
+	 int weeks,
+	 int days,
+	 unsigned long  seconds,
+	 l_fp * lfp
+	 )
+{
+  if (weeks < GPSWRAP)
+    {
+      weeks += 1024;
+    }
+
+  lfp->l_ui = weeks * SECSPERWEEK + days * 86400 + seconds + GPSORIGIN; /* convert to NTP time */
+  lfp->l_uf = 0;
+}
+
+/*
+ * gpstolfp.c,v
+ * Revision 4.3  1999/02/28 11:42:44  kardel
+ * (GPSWRAP): update GPS rollover to 990 weeks
+ *
+ * Revision 4.2  1998/07/11 10:05:25  kardel
+ * Release 4.0.73d reconcilation
+ *
+ * Revision 4.1  1998/06/28 16:47:15  kardel
+ * added gpstolfp() function
+ */