#undef static
#endif
-#include <limits.h>
#include <stdio.h>
#include <time.h>
#include <sys/types.h>
typedef int logical;
-/* True if TM_YEAR is a struct tm's tm_year value that is acceptable
- to asctime. Glibc asctime returns a useful string unless TM_YEAR
- is nearly INT_MAX, but the C Standard lets C libraries overrun a
- buffer if TM_YEAR needs more than 4 bytes. */
-#ifdef __GLIBC__
-# define TM_YEAR_IN_ASCTIME_RANGE(tm_year) ((tm_year) <= INT_MAX - 1900)
-#else
+#define TM_YEAR_BASE 1900
+
+/* Nonzero if TM_YEAR is a struct tm's tm_year value that causes
+ asctime to have well-defined behavior. */
+#ifndef TM_YEAR_IN_ASCTIME_RANGE
# define TM_YEAR_IN_ASCTIME_RANGE(tm_year) \
- (-999 - 1900 <= (tm_year) && (tm_year) <= 9999 - 1900)
+ (1000 - TM_YEAR_BASE <= (tm_year) && (tm_year) <= 9999 - TM_YEAR_BASE)
#endif
/*
Don't use 'ctime', as that might dump core if the hardware clock
is set to a bizarre value. */
tm = localtime (<oday);
- if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year)))
+ if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year)
+ && (today = asctime (tm))))
fatal ("current time is out of range");
- today = asctime (tm);
data.size = 200;
data.buffer = xnew (200, char);