Date: Mon, 26 May 1997 09:29:40 -0700 From: Paul Traina <pst@shockwave.com> To: dg@root.com Cc: questions@FreeBSD.ORG Subject: Re: execve() and the actual name of the image executed Message-ID: <199705261629.JAA29924@precipice.shockwave.com> In-Reply-To: Your message of "Sat, 24 May 1997 17:53:05 PDT." <199705250053.RAA16879@implode.root.com>
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Thanks David, that hit the spot.
From: David Greenman <dg@root.com>
Subject: Re: execve() and the actual name of the image executed
>The parameters passed to execve include the filename that you wish
>to exec, followed by the argv and envp structures. A quick perusal
>of kern_exec.s shows the kernel copying the argv and envp structures
>to the new process area, but it appears as if the path to the
>executable is lost.
Yup.
>Is there any /absolutely guaranteed/ way to get a pointer to the/a path
>that was actually used to invoke an image from that image?
/proc/<pid>/file is one way. This only works on FreeBSD 2.2+, however.
-DG
David Greenman
Core-team/Principal Architect, The FreeBSD Project
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