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Date:      Thu, 21 Mar 2024 20:13:52 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 277863] Possible regression in mktime(3)
Message-ID:  <bug-277863-227-jihHEww0vx@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-277863-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-277863-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D277863

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 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 conve=
rt
cleanly to a 32 bit year number when using 32 bit intermediate variables.  =
In
this code y =3D -109624180.

        if (ckd_add(&tmp->tm_year, y, -TM_YEAR_BASE)) {
          errno =3D EOVERFLOW;
          return NULL;
        }

--=20
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