ntp/ntpd/check_y2k.c

110 Days ( int Year )		/* return number of days since year "0" */
126 static int  year0 = 1900;	/* sarting year for NTP time */
127 static int  yearend;		/* ending year we test for NTP time.
129 				      **year in which NTP time overflows.
138 #define Error(year) if ( (year)>=2036 && LocalTime.tm_year < 110 ) \
146     int  year;
155     year = ( sizeof( u_long ) > 4 ) 	/* save max span using year as temp */
162 			 * fail ONLY beyond year 2036 you may ignore such
164     yearend = year0 + year;
173 		(int)year0, (int)yearend, (int)year );
180     save_year = LocalTime.tm_year;	/* save current year */
182     year = 1980;
183     LocalTime.tm_year = year - 1900;
185     Error(year);		/* should increment Fatals */
190 	    (int)year, __FILE__, __LINE__, (int)Fatals, (int)Warnings );
194     year = 2100;		/* test year > limit but CURRENT year < limit */
196     Error(year);		/* should increment Fatals */
201 	    (int)year, __FILE__, __LINE__, (int)Fatals, (int)Warnings );
205     LocalTime.tm_year = year - 1900;	/* everything > limit */
211 	    (int)year, __FILE__, __LINE__, (int)Fatals, (int)Warnings );
218     days = 365+1;		/* days in year 0 + 1 more day */
219     for ( year = 1; year <= 2500; year++ )
222 	Test = Days( year );
226 		year, (long)days, (long)Test );
230 	Test = julian0(year);		/* compare with julian0() macro */
234 		year, (long)days, (long)Test );
239 	if ( isleap_4(year) ) days++;
270     for ( year = 1400; year <= 2200; year++ )
275 	LeapSw = GoodLeap(year);
276 	IsLeapSw = isleap_4(year);
280 	    Error(year);
282 		"  %4d %2d %3d *** ERROR\n", year, LeapSw, IsLeapSw );
286 	IsLeapSw = isleap_tm(year-1900);
290 	    Error(year);
292 		"  %4d %2d %3d *** ERROR\n", year, LeapSw, IsLeapSw );
304     for ( year = 1400; year <= 2200; year++ )
308 	LeapSw = GoodLeap(year);
310 	if ( !(!LeapSw) != !(!is_leapyear(year)) )
312 	    Error(year);
314 		"  %4d %2d *** ERROR\n", year, LeapSw );
327        int   year;
335     for ( year = 1400; year <= 2200; year++ )
340 	LeapSw = GoodLeap(year);
341 	DayCnt = (int)days_per_year(year);
345 	    Error(year);
348 		    year, LeapSw, DayCnt );
357     for ( year = 1970; year < yearend; year++ )
362 	clock_time->year = year;
367 	     * over a period of time, including for year 2000. True, it
372         t =  (clock_time->year - 1970) * 365;
373         t += (clock_time->year >> 2) - (1970 >> 2);
374         t -= clock_time->year / 100 - 1970 / 100;
375         t += clock_time->year / 400 - 1970 / 400;
382 	t = julian0(year) - julian0(1970);
386 	DaysYear = Days( year );	/* get days to this year */
389 	    Error(year);
392 		  year,      (long)Days1970,
393 				 year,
403     for ( year = 1970; year < yearend; year++ )
414 	ct.year = year;
422 	if ( ct.year != year )
425 	       "%04d: parse_to_unixtime(,%d) CORRUPTED ct.year: was %d\n",
426 	       (int)year, (int)Flag, (int)ct.year );
427 	    Error(year);
430 	t = julian0(year) - julian0(1970);	/* Julian day from 1970 */
436 	       year, (int)Flag,
439 	    Error(year);
443 	if ( year >= YEAR_PIVOT+1900 )
445 	    /* check year % 100 code we put into parse_to_unixtime() */
447 	    ct.year = year % 100;
456 		   year, (int)ct.year, (int)Flag,
459 		Error(year);
463 	    /* check year - 1900 code we put into parse_to_unixtime() */
465 	    ct.year = year - 1900;
474 		   year, (int)ct.year, (int)Flag,
477 		Error(year);
493     year = year0;		/* calculate the basic year */
494     printf( "  starting year %04d\n", (int)year0 );
495     printf( "  ending year   %04d\n", (int)yearend );
504 	Error(year);
512     for ( ; year < yearend; year++ )
515 	/* 01-01 for the current year */
516 	ntp_time = Days( year ) - Days( year0 );  /* days into NTP time */
519 	if ( ot.year  != year
523 	    Error(year);
526 			year,
527 			(int)ot.year, (int)ot.month, (int)ot.monthday );
533 	if ( ot.year  != year
537 	    Error(year);
540 			year,
541 			(int)ot.year, (int)ot.month, (int)ot.monthday );
549 	m = isleap_4(year) ?  2 : 3;
550 	d = isleap_4(year) ? 29 : 1;
554 	if ( ot.year  != year
558 	    Error(year);
561 			year, m, d,
562 			(int)ot.year, (int)ot.month, (int)ot.monthday );
575     year = year0;		/* calculate the basic year */
576     printf( "  starting year %04d\n", (int)year0 );
577     printf( "  ending year   %04d\n", (int)yearend );
580     for ( ; year < yearend; year++ )
584 	/* 01-01 for the current year */
585 	ot.year = year;
590 	ntp_time = Days( year ) - Days( year0 );  /* days into NTP time */
595 	    Error(year);
597 			(int)year,
606 	if ( ot.year  != year
610 	    Error(year);
613 			year,
614 			(int)ot.year, (int)ot.month, (int)ot.monthday );