time/bug-asctime_r.c

   1 #include <errno.h>
   2 #include <limits.h>
   3 #include <stdio.h>
   4 #include <time.h>
   5
   6
   7 static int
   8 do_test (void)
   9 {
  10   int result = 0;
  11   time_t t = time (NULL);
  12   struct tm *tp = localtime (&t);
  13   tp->tm_year = 10000 - 1900;
  14   char buf[1000];
  15   errno = 0;
  16   buf[26] = '\xff';
  17   char *s = asctime_r (tp, buf);
  18   if (s != NULL || errno != EOVERFLOW)
  19     {
  20       puts ("asctime_r did not fail correctly");
  21       result = 1;
  22     }
  23   if (buf[26] != '\xff')
  24     {
  25       puts ("asctime_r overwrote 27th byte in buffer");
  26       result = 1;
  27     }
  28   return result;
  29 }
  30
  31 #define TEST_FUNCTION do_test ()
  32 #include "../test-skeleton.c"