ntp/ntpd/check_y2k.c

111 Days ( int Year )		/* return number of days since year "0" */
127 static int  year0 = 1900;	/* sarting year for NTP time */
128 static int  yearend;		/* ending year we test for NTP time.
130 				      **year in which NTP time overflows.
139 #define Error(year) if ( (year)>=2036 && LocalTime.tm_year < 110 ) \
147     int  year;
156     year = ( sizeof( u_long ) > 4 ) 	/* save max span using year as temp */
163 			 * fail ONLY beyond year 2036 you may ignore such
165     yearend = year0 + year;
174 		(int)year0, (int)yearend, (int)year );
181     save_year = LocalTime.tm_year;	/* save current year */
183     year = 1980;
184     LocalTime.tm_year = year - 1900;
186     Error(year);		/* should increment Fatals */
191 	    (int)year, __FILE__, __LINE__, (int)Fatals, (int)Warnings );
195     year = 2100;		/* test year > limit but CURRENT year < limit */
197     Error(year);		/* should increment Fatals */
202 	    (int)year, __FILE__, __LINE__, (int)Fatals, (int)Warnings );
206     LocalTime.tm_year = year - 1900;	/* everything > limit */
212 	    (int)year, __FILE__, __LINE__, (int)Fatals, (int)Warnings );
219     days = 365+1;		/* days in year 0 + 1 more day */
220     for ( year = 1; year <= 2500; year++ )
223 	Test = Days( year );
227 		year, (long)days, (long)Test );
231 	Test = julian0(year);		/* compare with julian0() macro */
235 		year, (long)days, (long)Test );
240 	if ( isleap_4(year) ) days++;
271     for ( year = 1400; year <= 2200; year++ )
276 	LeapSw = GoodLeap(year);
277 	IsLeapSw = isleap_4(year);
281 	    Error(year);
283 		"  %4d %2d %3d *** ERROR\n", year, LeapSw, IsLeapSw );
287 	IsLeapSw = isleap_tm(year-1900);
291 	    Error(year);
293 		"  %4d %2d %3d *** ERROR\n", year, LeapSw, IsLeapSw );
305     for ( year = 1400; year <= 2200; year++ )
309 	LeapSw = GoodLeap(year);
311 	if ( !(!LeapSw) != !(!is_leapyear(year)) )
313 	    Error(year);
315 		"  %4d %2d *** ERROR\n", year, LeapSw );
328        int   year;
336     for ( year = 1400; year <= 2200; year++ )
341 	LeapSw = GoodLeap(year);
342 	DayCnt = (int)days_per_year(year);
346 	    Error(year);
349 		    year, LeapSw, DayCnt );
358     for ( year = 1970; year < yearend; year++ )
363 	clock_time->year = year;
368 	     * over a period of time, including for year 2000. True, it
373         t =  (clock_time->year - 1970) * 365;
374         t += (clock_time->year >> 2) - (1970 >> 2);
375         t -= clock_time->year / 100 - 1970 / 100;
376         t += clock_time->year / 400 - 1970 / 400;
383 	t = julian0(year) - julian0(1970);
387 	DaysYear = Days( year );	/* get days to this year */
390 	    Error(year);
393 		  year,      (long)Days1970,
394 				 year,
404     for ( year = 1970; year < yearend; year++ )
415 	ct.year = year;
423 	if ( ct.year != year )
426 	       "%04d: parse_to_unixtime(,%d) CORRUPTED ct.year: was %d\n",
427 	       (int)year, (int)Flag, (int)ct.year );
428 	    Error(year);
431 	t = julian0(year) - julian0(1970);	/* Julian day from 1970 */
437 	       year, (int)Flag,
440 	    Error(year);
444 	if ( year >= YEAR_PIVOT+1900 )
446 	    /* check year % 100 code we put into parse_to_unixtime() */
448 	    ct.year = year % 100;
457 		   year, (int)ct.year, (int)Flag,
460 		Error(year);
464 	    /* check year - 1900 code we put into parse_to_unixtime() */
466 	    ct.year = year - 1900;
475 		   year, (int)ct.year, (int)Flag,
478 		Error(year);
494     year = year0;		/* calculate the basic year */
495     printf( "  starting year %04d\n", (int)year0 );
496     printf( "  ending year   %04d\n", (int)yearend );
505 	Error(year);
513     for ( ; year < yearend; year++ )
516 	/* 01-01 for the current year */
517 	ntp_time = Days( year ) - Days( year0 );  /* days into NTP time */
520 	if ( ot.year  != year
524 	    Error(year);
527 			year,
528 			(int)ot.year, (int)ot.month, (int)ot.monthday );
534 	if ( ot.year  != year
538 	    Error(year);
541 			year,
542 			(int)ot.year, (int)ot.month, (int)ot.monthday );
550 	m = isleap_4(year) ?  2 : 3;
551 	d = isleap_4(year) ? 29 : 1;
555 	if ( ot.year  != year
559 	    Error(year);
562 			year, m, d,
563 			(int)ot.year, (int)ot.month, (int)ot.monthday );
576     year = year0;		/* calculate the basic year */
577     printf( "  starting year %04d\n", (int)year0 );
578     printf( "  ending year   %04d\n", (int)yearend );
581     for ( ; year < yearend; year++ )
585 	/* 01-01 for the current year */
586 	ot.year = year;
591 	ntp_time = Days( year ) - Days( year0 );  /* days into NTP time */
596 	    Error(year);
598 			(int)year,
607 	if ( ot.year  != year
611 	    Error(year);
614 			year,
615 			(int)ot.year, (int)ot.month, (int)ot.monthday );