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From: Florian Weimer <fweimer@redhat.com>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: libc-alpha@gnu.org
Subject: Re: [PATCH 3/3] Merge tempname ASLR etc. patch from Gnulib
Date: Tue, 23 Aug 2022 09:19:26 +0200	[thread overview]
Message-ID: <875yij5sw1.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <20220822205834.563590-3-eggert@cs.ucla.edu> (Paul Eggert's message of "Mon, 22 Aug 2022 15:58:34 -0500")

* Paul Eggert:

> @@ -299,18 +325,16 @@ try_tempname_len (char *tmpl, int suffixlen, void *args,
>          {
>            if (vdigits == 0)
>              {
> -              do
> -                {
> -                  v = random_bits (v, use_getrandom);
> -                  use_getrandom = true;
> -                }
> -              while (unfair_min <= v);
> +              /* Worry about bias only if the bits are high quality.  */
> +              while (random_bits (&v, v) && biased_min <= v)
> +                continue;

Should glibc simply use arc4random_uniform here?

Thanks,
Florian


  reply	other threads:[~2022-08-23  7:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-22 20:58 [PATCH 1/3] Merge _GL_UNUSED C23 " Paul Eggert
2022-08-22 20:58 ` [PATCH 2/3] Merge getopt " Paul Eggert
2022-08-23  7:19   ` Florian Weimer
2022-08-22 20:58 ` [PATCH 3/3] Merge tempname ASLR etc. " Paul Eggert
2022-08-23  7:19   ` Florian Weimer [this message]
2022-08-24  4:15     ` Paul Eggert
2022-08-23  7:16 ` [PATCH 1/3] Merge _GL_UNUSED C23 " Florian Weimer

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