[Bug 277863] Possible regression in mktime(3)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277863

John F. Carr <jfc@mit.edu> changed:

           What    |Removed                     |Added
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                 CC|                            |jfc@mit.edu

--- Comment #4 from John F. Carr <jfc@mit.edu> ---
Stepping through mktime, I see a binary search in the range INT_MIN to INT_MAX
seconds that fails because time -4611686018427387904 seconds does not convert
cleanly to a 32 bit year number when using 32 bit intermediate variables.  In
this code y = -109624180.

        if (ckd_add(&tmp->tm_year, y, -TM_YEAR_BASE)) {
          errno = EOVERFLOW;
          return NULL;
        }

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