44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/* $NetBSD: gpstolfp.c,v 1.2 2000/04/17 05:48:36 simonb Exp $ */
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/*
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* /src/NTP/ntp-4/libntp/gpstolfp.c,v 4.3 1999/02/28 11:42:44 kardel RELEASE_19990228_A
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*
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* Created: Sun Jun 28 16:30:38 1998
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*
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* Copyright (C) 1998 by Frank Kardel
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*/
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#include "ntp_fp.h"
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#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 */
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#define GPSWRAP 990 /* assume week count less than this in the previous epoch */
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void
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gpstolfp(
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int weeks,
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int days,
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unsigned long seconds,
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l_fp * lfp
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)
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{
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if (weeks < GPSWRAP)
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{
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weeks += 1024;
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}
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lfp->l_ui = weeks * SECSPERWEEK + days * 86400 + seconds + GPSORIGIN; /* convert to NTP time */
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lfp->l_uf = 0;
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}
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/*
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* gpstolfp.c,v
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* Revision 4.3 1999/02/28 11:42:44 kardel
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* (GPSWRAP): update GPS rollover to 990 weeks
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*
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* Revision 4.2 1998/07/11 10:05:25 kardel
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* Release 4.0.73d reconcilation
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*
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* Revision 4.1 1998/06/28 16:47:15 kardel
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* added gpstolfp() function
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*/
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