Re: New procps release soon

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On Mon, 30 Sept 2024 at 19:21, Dr. Werner Fink <[email protected]> wrote:

> but AFAICR the line above
>
>     char [...] tty[5 + UT_LINESIZE + 1] = "/dev/";
>
> does cause gcc to fill the all after /dev/ with \0
>
So it does!
(gdb) p tty
$1 = "/dev/", '\000' <repeats 32 times>
That's a GCC being clever thing? I would have thought the default behaviour
would be /dev/\0(random stuff).

It always breaks before UT_LINESIZE so its always going to have that \0 at
the end.
You can't have a line longer than the maximum so theres no issue of tty
being reused through the loop either.

 - Craig

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<div dir=3D"ltr"><div dir=3D"ltr">On Mon, 30 Sept 2024 at 19:21, Dr. Werner=
 Fink &lt;<a href=3D"mailto:[email protected]">[email protected]</a>&gt; wrote:</=
div><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">but AFAICR the line above<br>
<br>
=C2=A0 =C2=A0 char [...] tty[5 + UT_LINESIZE + 1] =3D &quot;/dev/&quot;;<br=
>
<br>
does cause gcc to fill the all after /dev/ with \0<br></blockquote><div>So =
it does!</div><div>(gdb) p tty<br>$1 =3D &quot;/dev/&quot;, &#39;\000&#39; =
&lt;repeats 32 times&gt;</div><div>That&#39;s a GCC being clever thing? I w=
ould have thought the default behaviour would be /dev/\0(random stuff).<br>=
</div><div><br></div><div>It always breaks before UT_LINESIZE so its always=
 going to have that \0 at the end.</div><div>You can&#39;t have a line long=
er than the maximum so theres no issue of tty being reused through the loop=
 either.</div><div><br></div><div>=C2=A0- Craig</div><br></div></div>

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