Re: date in core utils

[Rene de Zwart]

On Wed, Mar 30, 2005 at 11:43:24PM -0500, Paul Eggert wrote:
> Rene de Zwart <address@hidden> writes:
> 
> > I debbuged date from coreutils 5.3.0 and got
> >   get_date (&when, datestr, NULL);
> >   with datestr="19370701"
> >  returned invalid date
> >
> >  So it is at a different level than date.
> 
> But get_date is shipped as part of coreutils 5.3.0, so if it is
> a bug in get_date then it is a bug in coreutils 5.3.0.
> 
> Can you investigate why get_date is failing on your host?
> (It doesn't fail on mine.)
Well I did and and I came out to the lines lib/getdate.c
1302

        tm0 = tm;
        Start = mktime (&tm);
        if (! mktime_ok (&tm0, &tm, Start))
/* mktime changes tm and causes mktime_ok to fail because
         tm.tm_sec
         tm.tm_min
         tm.tm_hour
         are changed but that only happens for 19370701
         other dates work ok. The problem seems to be in mktime
 */



I can get it to work by doing 
TZ=GMT0 date --date="19370701" +"%Y%m%d"
but what fails to me is that I did this for

date --date="19011216" +"%Y%m%d %u %V"
date --date="19011217" +"%Y%m%d %u %V"
...
...
...
date --date="20040226" +"%Y%m%d %u %V"
date --date="20040227" +"%Y%m%d %u %V"
date --date="20040228" +"%Y%m%d %u %V"
date --date="20040229" +"%Y%m%d %u %V"

Out of 37331 dates only --date="19370701" +"%Y%m%d %u %V"
gave this weird answer 9370630 3 26
I don't know what to think of it.
I'll ask on a gentoo forum if they see the same thing.

Thanks for your time