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Date:      Wed, 24 Nov 1999 00:54:15 +0100
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Brian Somers <brian@Awfulhak.org>
Cc:        Dan Nelson <dnelson@emsphone.com>, Forrest Aldrich <forrie@forrie.com>, freebsd-current@FreeBSD.ORG, security@FreeBSD.ORG
Subject:   Re: ps on 4.0-current 
Message-ID:  <31375.943401255@critter.freebsd.dk>
In-Reply-To: Your message of "Tue, 23 Nov 1999 23:52:49 GMT." <199911232352.XAA01547@hak.lan.Awfulhak.org> 

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In message <199911232352.XAA01547@hak.lan.Awfulhak.org>, Brian Somers writes:
>> In the last episode (Nov 23), Brian Somers said:
>> > $ ps jtva
>> > USER   PID  PPID  PGID   SESS JOBC STAT  TT       TIME COMMAND
>> > root   222     1   222 9dac40    0 Is+   va    0:00.01  (getty)
>> > $ sudo ps jtva
>> > USER   PID  PPID  PGID   SESS JOBC STAT  TT       TIME COMMAND
>> > root   222     1   222 9dac40    0 Is+   va    0:00.01 /usr/libexec/getty Pc tt
>> > $ head -1 /etc/motd
>> > FreeBSD 4.0-CURRENT (HAK) #9: Mon Nov 22 01:09:55 GMT 1999
>> > 
>> > This looks a bit wrong....
>> 
>> Now that does look weird.  After a bit more investigation, it looks
>> like you can only get the full commandline of your own processes.  Root
>> can see all commandlines.

>Any comments Poul ?  Is this anything to do with the recent command 
>line buffering ?

Yes, I changed it to this behaviour at warners asking (I think he had
the security-meister hard-hat on at the time).

I'm personally leaning towards the opinion that the argv is public
property and should be visible, but then again, I can see the point
in hiding it in some circumstances.

I'll stick a sysctl in there which defaults to the "open" position
and people who need to hide it can set it to "close" to do so.

Will this satisfy everybody ?

Warner ?

--
Poul-Henning Kamp             FreeBSD coreteam member
phk@FreeBSD.ORG               "Real hackers run -current on their laptop."
FreeBSD -- It will take a long time before progress goes too far!


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