1 files changed, 77 insertions, 0 deletions
diff --git a/libparse/gpstolfp.c b/libparse/gpstolfp.c
new file mode 100644
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--- /dev/null
+++ b/libparse/gpstolfp.c
@@ -0,0 +1,77 @@
+/*
+ * /src/NTP/ntp4-dev/libntp/gpstolfp.c,v 4.8 2005/04/16 17:32:10 kardel RELEASE_20050508_A
+ *
+ * gpstolfp.c,v 4.8 2005/04/16 17:32:10 kardel RELEASE_20050508_A
+ *
+ * $Created: Sun Jun 28 16:30:38 1998 $
+ *
+ * Copyright (c) 1998-2005 by Frank Kardel <kardel <AT> ntp.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#include <config.h>
+#include "ntp_fp.h"
+
+#define GPSORIGIN	2524953600UL	/* 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;
+}
+
+/*
+ * History:
+ *
+ * gpstolfp.c,v
+ * Revision 4.8  2005/04/16 17:32:10  kardel
+ * update copyright
+ *
+ * Revision 4.7  2004/11/14 15:29:41  kardel
+ * support PPSAPI, upgrade Copyright to Berkeley style
+ *
+ * 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
+ */