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Re: Output format improvment for ifconfig(8)

On Oct 31, 2012, at 7:56 PM, Paul Goyette <> wrote:

> Some time ago, I created the snprintb_m(3) to print bit field values across 
> multiple output lines, rather than on a single, potentially very long line, 
> and cpuctl(8) (for i386/amd64) was modified to use this for the multiple CPU 
> features lines.
> I'd like to make similar changes to ifconfig(8) for the capabilities, 
> enabled, and flags field.
> The following diffs shows how the output would change.  (I am certain that my 
> mailer will screw up the presentation of the long lines, so I have also 
> attached the diffs!)  The code changes are also attached.
> Any objections or suggestions?

ifconfig is one of those commands that shows up in scripts a lot;
I wonder if that would break things for some people.

                --Steve Bellovin,

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