Date: Tue, 7 Jun 2005 00:05:28 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Midnight Oil <jamie@gnulife.org> Cc: freebsd-questions@freebsd.org Subject: Re: Permissions on ps Message-ID: <20050607050528.GQ255@dan.emsphone.com> In-Reply-To: <20050606234735.D21034@floyd.gnulife.org> References: <20050606234735.D21034@floyd.gnulife.org>
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In the last episode (Jun 06), Midnight Oil said: > I'm having difficulty understanding just how it is a regular with > simple priviliges is able to run ps. > > ps accesses /dev/kmem to get a process list. No, ps uses the kvm_getprocs library function, which by default uses the sysctl kern.proc.all to get the process list. You can force it to use /dev/kmem with the -M and -N commandline flags, but those are usually used to debug crashdumps, not live systems. -- Dan Nelson dnelson@allantgroup.com
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