Hi Alan,
By any chance did you test this change with /dev/kmem and kernel
addresses ("negative" off_t values)?
Thanks,
Conrad
On Fri, Aug 25, 2017 at 8:31 AM, Alan Somers <asom...@freebsd.org> wrote:
> Author: asomers
> Date: Fri Aug 25 15:31:55 2017
> New Revision: 322893
> URL: https://svnweb.freebsd.org/changeset/base/322893
>
> Log:
> dd(1): Incorrect casting of arguments
>
> dd(1) casts many of its numeric arguments from uintmax_t to intmax_t and
> back again to detect whether or not the original arguments were negative.
> This is not correct, and causes problems with boundary cases, for example
> when count is SSIZE_MAX-1.
>
> PR: 191263
> Submitted by: w...@worrbase.com
> Reviewed by: pi, asomers
> MFC after: 3 weeks
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