ntp/ntpd/refclock_nmea.c

141  * DATE/TIME are standard date/time strings in UTC time scale
144  * date spec.
155 #define	DATE_HOLD	16	/* seconds to hold on provided GPS date */
156 #define	DATE_HLIM	4	/* when do we take ANY date format */
175 #define NMEA_GPZDA	3	/* date/time */
212 /* date formats we support */
218 /* date type */
253 	TNtpDatum	last_gpsdate;	/* last processed split date/time */
255 	u_short		type_gpsdate;	/* date info type for above */
262 		u_int malformed;  /* Bad checksum, invalid date or time */
631  * + it parses the time and date data from the NMEA data string and
632  *   augments the missing bits. (century in date, whole date, ...)
656 	TCivilDate	date;	/* to keep & convert the time stamp */
660 	/* results of sentence/date/time parsing */
663 	int		warp;		/* warp to GPS base date */
673 	ZERO(date);
804 		rc_time	 = parse_time(&date, &tofs, &rdata, 1);
807 			rc_date	= parse_date(&date, &rdata, 9, DATE_1_DDMMYY);
816 		rc_time	 = parse_time(&date, &tofs, &rdata, 1);
824 		rc_time	 = parse_time(&date, &tofs, &rdata, 5);
831 		/* No quality.	Assume best, fetch time & full date */
832 		rc_time	= parse_time(&date, &tofs, &rdata, 1);
834 			rc_date	= parse_date(&date, &rdata, 2, DATE_3_DDMMYYYY);
840 		/* Check quality byte, fetch time & full date */
841 		rc_time	 = parse_time(&date, &tofs, &rdata, 1);
845 			rc_date	= parse_date(&date, &rdata, 2, DATE_3_DDMMYYYY);
852 		rc_time = parse_time(&date, &tofs, &rdata, 4);
866 		rc_time = parse_time(&date, &tofs, &rdata, 2);
888 	/* Check sanity of date. */
889 	else if (rc_date == 0) {	/* no date or conversion error? */
916 	/* set the GPS base date, if possible */
919 		DPRINTF(1, ("%s saving date, type=%hu\n",
932 				&date, tofs, warp);
941 			&date, tofs, &up->last_gpsdate, warp);
944 			&date, tofs, rd_timestamp, warp);
949 		gpsntp_to_calendar(&date, &dntp);
953 			    ntpcal_iso8601std(NULL, 0, &date),
958 			    ntpcal_iso8601std(NULL, 0, &date)));
1555 /* /[[:digit:]]{6}/ --> civil date
1575 		DPRINTF(1, ("nmea: invalid date code: '%.*s'\n",
1581 /* /[[:digit:]]+,[[:digit:]]+,[[:digit:]]+/ --> civil date
1582  * parses three successive numeric fields as date: day,month,year
1603 		DPRINTF(1, ("nmea: invalid date code: '%.*s'\n",
1659  * Parse a date string from an NMEA sentence. This could either be a
1660  * partial date in DDMMYY format in one field, or DD,MM,YYYY full date
1662  * checking to make sure the date string was consistent.