From: "Steve Graegert" <graegerts@gmail.com>
To: "Jørgen P. Tjernø" <jorgen@devsoft.no>
Cc: linux-c-programming@vger.kernel.org
Subject: Re: execve-type memory-based function, possible?
Date: Mon, 23 Oct 2006 13:33:32 +0200 [thread overview]
Message-ID: <6a00c8d50610230433t6f41b04dr13b57c0fd9e7cb99@mail.gmail.com> (raw)
In-Reply-To: <453C975C.1010402@devsoft.no>
On 10/23/06, "Jørgen P. Tjernø" <jorgen@devsoft.no> wrote:
> Jørgen P. Tjernø wrote:
> > [ .. a lot of stuff .. ]
>
> It might've been a bit unclear, so here goes:
>
> I'm thinking something like if you read the contents of the file
> "/bin/ls" into a buffer, and then want to execute that.
> Wouldn't that require that you allocate the memory, do relocation, set
> the correct memory page protection (to execute for code, etc), etcetera?
Jørgen,
(now I got it) Looks like you'd want to implement some kind of
userland exec. In this case the following archive will be useful:
http://www.graegert.com/code/ul_exec-v1.1.tar.gz. Although quite
dated it illustrates basic concepts.
If you have questions about the code or the general approach, feel
free to contact me privately.
\Steve
--
Steve Grägert <steve@graegert.com>
Jabber xmpp://graegerts@jabber.org
Internet http://eth0.graegert.com, http://blog.graegert.com
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prev parent reply other threads:[~2006-10-23 11:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-23 9:19 execve-type memory-based function, possible? "Jørgen P. Tjernø"
2006-10-23 10:20 ` "Jørgen P. Tjernø"
2006-10-23 11:33 ` Steve Graegert [this message]
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