From: DervishD <raul@pleyades.net>
To: Miquel van Smoorenburg <miquels@cistron.nl>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Changing argv[0] under Linux.
Date: Wed, 15 Jan 2003 12:28:31 +0100 [thread overview]
Message-ID: <20030115112831.GB66@DervishD> (raw)
In-Reply-To: <b020vm$bpm$1@ncc1701.cistron.net>
Hi Miquel :))
> >Last time I checked argv[0] was 512 bytes. Many daemons overwrite
> >it with no problem.
> No cigar. This stuff is all set up by the kernel on the stack;
Thanks a lot for your help :)) FYI, this question is related to
the virtual-console-only init clone that I wrote some time ago (I
used sysvinit for inspiration and good advice), I think I wrote you
about this. Anyway, you are in the acknowledgement list doubly, now
;))) I'm going to release this init in a week or so, after having
using it for more than a year at home without problems.
> If you want to modify argv[0] etc, loop over argv[], count howmuch
> space there is (strlen(argv[0] + 1 + strlen(argv[1] + 1 ... etc)
> and make sure you do NOT write a string longer than that. Also
> make sure that you end the string with a double \0
How about portability? Not that worries me, since this code will
go to a Linux-only program, just curiosity. Other OSes do the same
stack layout?
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
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 [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030115112831.GB66@DervishD \
--to=raul@pleyades.net \
--cc=linux-kernel@vger.kernel.org \
--cc=miquels@cistron.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).