Re: Redhat 7.3 time manipulation bug - Mailing list pgsql-hackers

From Manuel Sugawara
Subject Re: Redhat 7.3 time manipulation bug
Date
Msg-id m3vg9hlfws.fsf@conexa.fciencias.unam.mx
Whole thread Raw
In response to Re: Redhat 7.3 time manipulation bug  (Lamar Owen <lamar.owen@wgcr.org>)
Responses Re: Redhat 7.3 time manipulation bug  (Lamar Owen <lamar.owen@wgcr.org>)
List pgsql-hackers
Lamar Owen <lamar.owen@wgcr.org> writes:

> On Monday 20 May 2002 08:08 pm, Manuel Sugawara wrote:
> > > Where would we go to ferret out the source of this bug?  More to the
> > > point: we need a test case in C that could expose this as a glibc
> > > bug.
> 
> > Seems like mktime(3) is having problems with dates before the
> > epoch. Attached is the a program to test this. The glibc source is now
> > downloading I will try to hunt down this bug but not until the next
> > week.
> 
> It's not a bug.  At least not according to the ISO C standard.  See
> http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap04.html#tag_04_14
> for the definition of 'Seconds Since the Epoch', then
> cross-reference to the man page of mktime.

I see. This behavior is consistent with the fact that mktime is
supposed to return -1 on error, but then is broken in every other Unix
implementation that I know.

Any other workaround than downgrade or install FreeBSD?

Regards,
Manuel.


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