Date: Mon, 21 Jul 2003 13:23:21 -0400 From: Leo Bicknell <bicknell@ufp.org> To: hackers@freebsd.org Cc: Tim Kientzle <kientzle@acm.org> Subject: Re: Correct way to call execve? Message-ID: <20030721172321.GA57666@ussenterprise.ufp.org> In-Reply-To: <20030721171538.GA21656@colnta.acns.ab.ca> References: <3F1B0610.90803@acm.org> <20030720225041.GA26277@ussenterprise.ufp.org> <3F1C0C91.6050203@acm.org> <20030721165735.GA56766@ussenterprise.ufp.org> <20030721171538.GA21656@colnta.acns.ab.ca>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --]
In a message written on Mon, Jul 21, 2003 at 11:15:38AM -0600, Chad David wrote:
> Try cc -Wwrite-strings -Wcast-qual exec.c.
>
> You cannot simply cast away a const.
Grumble, will someone give me all the warnings you want turned on so I
can work around all of them? :)
% cat exec.c
#include <unistd.h>
#include <paths.h>
#include <string.h>
int main(int argc, char *const argv[], char *const envp[]) {
char *const execargv[] = { strdup(_PATH_BSHELL), strdup(NULL) };
execve(_PATH_BSHELL,execargv,envp);
return 0;
}
% cc -Wwrite-strings -Wcast-qual exec.c
% cc -Wall exec.c
--
Leo Bicknell - bicknell@ufp.org - CCIE 3440
PGP keys at http://www.ufp.org/~bicknell/
Read TMBG List - tmbg-list-request@tmbg.org, www.tmbg.org
[-- Attachment #2 --]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.1 (FreeBSD)
iD8DBQE/HCGJNh6mMG5yMTYRAnNgAJ42vjyWK9d5qM3Krjm2fMIK3YY36gCdHADI
OhuQhy6x/6VlYLWh0C2ZrHQ=
=MSyT
-----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030721172321.GA57666>