On Wed, Oct 16, 2019 at 07:26:25AM -0300, Alexandre Hamada wrote:
> Hi Tech,
> I would like to suggest to use UTC functions on all date/time convertions,
> to avoid some clock drift errors.

I came to the conclusion that more is needed in this function.
Converting time using ASN1_GENERALIZEDTIME_print(), strptime() and
whatever version of mktime() is not going to work well.
I think this code should be rewritten using X509_cmp_time() instead.
In libressl there is even ASN1_time_parse() but since this code still
needs openssl code for the CMS functions it is better to stick to
X509_cmp_time().

I put it on my list of things to look at in rpki-client.
 
> Kind regards,
> Alexandre Hamada
> 
> https://patch-diff.githubusercontent.com/raw/kristapsdz/rpki-client/pull/9.patch
> 
> From a463f8cb23375f15b74eff49a06e8934423e3dbf Mon Sep 17 00:00:00 2001
> From: dev-gto <43351700+dev-...@users.noreply.github.com>
> Date: Wed, 16 Oct 2019 07:22:46 -0300
> Subject: [PATCH] Avoid local time conversion
> 
> ---
>  mft.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/mft.c b/mft.c
> index f9176b4..738f3ff 100644
> --- a/mft.c
> +++ b/mft.c
> @@ -75,8 +75,8 @@ gentime2time(struct parse *p, const ASN1_GENERALIZEDTIME 
> *tp)
>       memset(&tm, 0, sizeof(struct tm));
>       if (strptime(buf, "%b %d %T %Y %Z", &tm) == NULL)
>               errx(EXIT_FAILURE, "%s: strptime", buf);
> -     if ((t = mktime(&tm)) == -1)
> -             errx(EXIT_FAILURE, "%s: mktime", buf);
> +     if ((t = timegm(&tm)) == -1)
> +             errx(EXIT_FAILURE, "%s: timegm", buf);
>       return t;
>  }
> 
> 

-- 
:wq Claudio

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