2  * clocktime - compute the NTP date from a day of year, hour, minute
21  * change when we are already less than a half year from the receive
22  * time stamp.	Since the length of a year is variable we use a
35  * Take a time spec given as day-of-year, hour, minute and second as
37  * '*ts_ui'. The value will be in the range (rec_ui-0.5yrs) to
38  * (rec_ui+0.5yrs). A hint for the current start-of-year will be
42  * '*yearstart' will receive the associated start-of-year.
45  * (+/-4hrs) around the receive time by returning a non-zero value.
49  * 32-bit arithmetic.
53 	int	yday	 ,	/* day-of-year */  in clocktime()
59 	u_long *yearstart,	/* cached start-of-year, should be fixed to u_int32 */  in clocktime()
62 	u_int32 ystt[3];	/* year start */  in clocktime()
68 	 * Compute the offset into the year in seconds.	 Note that  in clocktime()
74 					  HRSPERDAY * ((int32)yday - 1))));  in clocktime()
76 	 * Based on the cached year start, do a first attempt. Be  in clocktime()
78 	 * the receive time stamp. Do this only if the cached year  in clocktime()
79 	 * start is not zero, which will not happen after 1900 for the  in clocktime()
83 		/* -- get time stamp of potential solution */  in clocktime()
85 		/* -- calc absolute difference to receive time */  in clocktime()
86 		diff[0] = test[0] - rec_ui;  in clocktime()
89 		/* -- can't get closer if diff < NEARTIME */  in clocktime()
99 	 * about the year to start with. This takes us on the spot  in clocktime()
100 	 * with a fuzz of +/-1 year.  in clocktime()
106 	y = ntp_to_year(rec_ui - tmp);  in clocktime()
108 		/* -- get year start of potential solution */  in clocktime()
109 		ystt[idx] = year_to_ntp(y + idx - 1);  in clocktime()
110 		/* -- get time stamp of potential solution */  in clocktime()
112 		/* -- calc absolute difference to receive time */  in clocktime()
113 		diff[idx] = test[idx] - rec_ui;  in clocktime()
117 	/* -*- assume current year fits best, then search best fit */  in clocktime()
121 	/* -*- store results and update year start */  in clocktime()
125 	/* -*- tell if we could get into CLOSETIME*/  in clocktime()
138 	s = ntpcal_split_eradays(s.hi + DAY_NTP_STARTS - 1, NULL);  in ntp_to_year()
144 	int32 year)  in year_to_ntp()  argument
147 	days = ntpcal_days_in_years(year-1) - DAY_NTP_STARTS + 1;  in year_to_ntp()