Date: Mon, 27 Oct 2003 11:50:23 -0800 From: Wes Peters <wes@softweyr.com> To: "Dan Langille" <dan@langille.org>, freebsd-hackers@freebsd.org Subject: Re: non-root process and PID files Message-ID: <200310271150.23193.wes@softweyr.com> In-Reply-To: <3F9CF3F6.8307.ABC1250@localhost> References: <3F9CF3F6.8307.ABC1250@localhost>
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On Monday 27 October 2003 07:31 am, Dan Langille wrote:
> If a process starts up and does a setuid, should it be writing the
> PID file before or after the setuid?
>
> Two methods exists AFAIK:
>
> 1 - write your PID immediately, and the file is chown root:wheel
> 2 - write your PID to /var/run/myapp/myapp.pid where /var/run/myapp/
> is chown myapp:myapp
>
> Of the two, I think #1 is cleaner as it does not require another
> directory with special permissions.
>
> Any suggestions?
Create the pid file while still root, and if you are going to change the
user or group id, chown(2) or chgrp(2) the file just before setuid(2) /
setgid(2) calls.
--
Where am I, and what am I doing in this handbasket?
Wes Peters wes@softweyr.com
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