delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2012/11/09/04:18:38

X-Recipient: archive-cygwin AT delorie DOT com
X-Spam-Check-By: sourceware.org
Date: Fri, 9 Nov 2012 10:18:11 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Problem with setuid/execv on Cygwin/Windows 7
Message-ID: <20121109091811.GE7431@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <1352451558 DOT 7009 DOT YahooMailNeo AT web133201 DOT mail DOT ir2 DOT yahoo DOT com> <20121109090859 DOT GA31762 AT calimero DOT vinschen DOT de>
MIME-Version: 1.0
In-Reply-To: <20121109090859.GA31762@calimero.vinschen.de>
User-Agent: Mutt/1.5.21 (2010-09-15)
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On Nov  9 10:08, Corinna Vinschen wrote:
> On Nov  9 08:59, Laurent Cocault wrote:
> > Hi Cygwin community,
> > 
> > I am currently facing a problem with the combination of setuid/execv on a Cygwin/Windows 7.
> > [...]
> >     char* args[1];
> >     args[0] = NULL;
> >     status = execv("/bin/bash", args);
> 
> This is wrong.  You should at least set args[0] since that what becomes
> argv[0] in the child process:
> 
>       char* args[2];
>       args[1] = "bash";
>       args[2] = NULL;

Ouch.  ENOCOFFEE.  Make that

        args[0] = "bash";
        args[1] = NULL;

>       status = execv("/bin/bash", args);


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019