From: DervishD <raul@pleyades.net>
To: jw schultz <jw@pegasys.ws>, Linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Changing argv[0] under Linux.
Date: Wed, 15 Jan 2003 12:41:30 +0100 [thread overview]
Message-ID: <20030115114130.GD66@DervishD> (raw)
In-Reply-To: <20030115082527.GA22689@pegasys.ws>
Hi JW :)
> > > right after your envp. So, writing more info there would blow away
> > > your stack.
> > I can smell the next hack... memmove() the stack down to make room... :-)
> No need. You can memcpy the environment. See setenv(3),
> putenv(3) and related library routines.
I'm afraid that the best solution, well, the one which involves
less code and less problems (no need to relocate the environment or
things like that) is to write to argv[0] a shorter string that the
existing one, and overwrite with nulls the rest of arguments, just in
case the stack layout is not what expected.
Really, I'm thinking seriously about not rewritting argv[0] at
all. The problem is that may confuse the user when issuing 'ps' or
looking at /proc :((
Raúl
next prev parent reply other threads:[~2003-01-15 11:38 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-14 18:59 Changing argv[0] under Linux DervishD
2003-01-14 19:10 ` Richard B. Johnson
2003-01-14 19:14 ` DervishD
2003-01-14 19:43 ` Richard B. Johnson
2003-01-14 19:50 ` DervishD
2003-01-14 19:56 ` Richard B. Johnson
2003-01-14 20:23 ` Mark Mielke
2003-01-14 20:28 ` Richard B. Johnson
2003-01-14 21:21 ` Mark Mielke
2003-01-15 14:00 ` Richard B. Johnson
2003-01-15 16:43 ` Richard B. Johnson
2003-01-15 16:57 ` DervishD
2003-01-14 22:00 ` DervishD
2003-01-21 14:16 ` Bill Davidsen
2003-01-21 15:33 ` DervishD
2003-01-14 20:25 ` Philippe Troin
2003-01-14 20:56 ` Richard B. Johnson
2003-01-14 22:04 ` DervishD
2003-01-14 23:04 ` Bob Miller
2003-01-14 23:11 ` Bob Miller
2003-01-15 4:46 ` Mark Mielke
2003-01-15 8:25 ` jw schultz
2003-01-15 11:41 ` DervishD [this message]
2003-01-15 13:16 ` Jakob Oestergaard
2003-01-15 16:22 ` DervishD
2003-01-15 16:47 ` Jakob Oestergaard
2003-01-15 17:10 ` DervishD
2003-01-15 17:36 ` Changing argv[0] under Linux. This MUST work DervishD
2003-01-15 21:26 ` Changing argv[0] under Linux Andreas Schwab
2003-01-15 21:36 ` Jesse Pollard
2003-01-15 22:03 ` DervishD
2003-01-16 9:19 ` Dorin Lazar
2003-01-15 11:35 ` DervishD
2003-01-14 21:55 ` Miquel van Smoorenburg
2003-01-14 22:04 ` Valdis.Kletnieks
2003-01-15 11:28 ` DervishD
2003-01-27 7:47 ` Anuradha Ratnaweera
[not found] <122203493@toto.iv>
2003-01-14 22:55 ` Peter Chubb
2003-01-16 10:12 Jon Burgess
2003-01-16 10:32 ` DervishD
2003-01-16 11:31 Jon Burgess
2003-01-16 12:58 ` DervishD
[not found] <20030116130013.GE1358@DervishD>
[not found] ` <200301161315.h0GDFLM27487@isengard.accucard.com>
2003-01-17 10:08 ` DervishD
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