sysrc bug

[Fas Xmut]

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, June 1, 2021 9:22 PM, Miklós Quartus via freebsd-security <freebsd-security at freebsd.org> wrote:

> On 6/1/21 5:54 AM, Gordon Tetlow via freebsd-security wrote:
>
> > Surprised this old myth is still being repeated. Having used various
> >
> > > root shells in FreeBSD and other Unux/Linux systems for decades I have to
> > > ask specifically what said reasons are, particularly considering
> > > /usr/sbin/sysrc starts with "#!/bin/sh" (as does and should every system
> > > shell script).
> > > It’s likely due to the quoting behavior of newlines passed as the argument when he ran the script, which varies between shell implementations. As I said, I’m not surprised something broke because many utilities are not tested with different shell behaviors.
> >
> > I also believe if we have a reproducible test case, we should go ahead and fix it.
> > Gordon
>
> I have Bash shell in my root terminal (did not change the default shell,
> just type 'bash -l' from the default csh) and I could not reproduce this
> error on 13.0-RELEASE . The rc.conf remains fine showing just the
> expected changes.
>
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Regards,
> Miklós
> GPG fingerprint: 3C4B 1364 A379 7366 7FED 260A 2208 F2CE 3FCE A0D3





I think I didnt express clearly. You have to do two commands to reproduce it:



First:

sysrc something_enable="NO"



Then:

sysrc something_enable="YES
"



(Suppose you forget to type " at the end and just type enter, so I type " at the following line)







---