Date: Wed, 7 Apr 1999 15:58:31 +1000 From: Bruce Evans <bde@zeta.org.au> To: brian@Awfulhak.org, peter@netplex.com.au Cc: cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org Subject: Re: cvs commit: src/usr.sbin/cron/cron popen.c Message-ID: <199904070558.PAA18555@godzilla.zeta.org.au>
next in thread | raw e-mail | index | archive | help
>What I'd like to know though, is why a fd to /dev/console gets revoked
>when something does a revoke("/dev/ttyv0") - they have different minor/major
>numbers and you can see the difference between the two via ps. I'd have
>thought that fd's to /dev/console should never be revoked...
/dev/console doesn't get revoked here. My test:
# cat >/dev/console
1
2
3
4
[above shows up correctly on /dev/ttyv0]
^Z
# revoke /dev/console # use my handy revoke utility
[login on /dev/ttyv0 gets killed correctly]
%
1
2
3
4
[above still shows up on /dev/ttyv0]
A getty directly on /dev/console may cause more mysterious behaviour.
This is simpler for syscons vtys than for serial consoles. The syscons
/dev/console has an extra layer of aliasing (which was once necessary
to avoid problems with revoked consoles but shouldn't be necessary now).
Bruce
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199904070558.PAA18555>