NetBSD/dist/ntp/libntp/gpstolfp.c

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/* $NetBSD: gpstolfp.c,v 1.2 2000/04/17 05:48:36 simonb Exp $ */
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/*
* /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 long)(2524953600UL) /* NTP origin - GPS origin in seconds */
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#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
*/