Date: Mon, 16 Jun 2003 15:08:03 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Steve Coile <scoile@nandomedia.com> Cc: freebsd-questions@freebsd.org Subject: Re: "truss man" doesn't show *anything* Message-ID: <20030616140803.GA31859@happy-idiot-talk.infracaninophile.co.uk> In-Reply-To: <Pine.LNX.4.44.0306160456450.18836-100000@localhost.localdomain> References: <Pine.LNX.4.44.0306160456450.18836-100000@localhost.localdomain>
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On Mon, Jun 16, 2003 at 04:59:11AM -0400, Steve Coile wrote:
> I've just installed a new software package that includes manual pages.
> When I try to read the pages with "man -M <path> <page>", I'm told the
> manual page doesn't exist. When I use "truss man -M <path> <page>",
> truss generates *NO* output. Is that normal?
man(1) is a SUID executable:
% ls -la /usr/bin/man=20
-r-sr-xr-x 1 man wheel 29752 May 23 21:59 /usr/bin/man*
Hence truss(1) and other process tracing software like gdb(1) will
refuse to show you it's inner workings on the grounds of system
security.
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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