Re: wrong modes in gnome-games

[Martin Baulig <martin home-of-linux org>]

On 17 Jul 1998, Dirk Luetjens wrote:

> To: Todd Graham Lewis <tlewis@mindspring.net>
> Subject: Re: wrong modes in gnome-games
> From: Dirk Luetjens <dirk@luedi.oche.de>
> 
> Hi,
> 
> Todd Graham Lewis <tlewis@mindspring.net> writes:
> 
> > On Thu, 16 Jul 1998, Dirk Luetjens wrote:
> > 
> > > why are the most gnome-games set to mode 2111:
> > 
> > Almost certainly so that they can update the scores file securely.
> 
> Yes, but shouldn´t they have at least read permissions?
> 
> Or why am I getting these strange errors:
> 
> > dirk@hobbes[~]> ls -l gnomine
> > ---x--s--x   1 dirk     games      333605 Jul 16 15:48 /opt/gnome/bin/gnomine*
> > dirk@hobbes[~]> gnomine
> > gnomine: error in loading shared libraries
> > libgnomeui.so.0: cannot open shared object file: No such file or directory
> > dirk@hobbes[~]> chmod a+r /opt/gnome/bin/gnomine
> > dirk@hobbes[~]> ldd /opt/gnome/bin/gnomine 
> >        libgnomeui.so.0 => not found
> ...
> >        libgnome.so.0 => not found
> >        libgnomesupport.so.0 => not found
> ...
> > dirk@hobbes[~]> chmod 755 /opt/gnome/bin/gnomine 
> > dirk@hobbes[~]> ls -l /opt/gnome/bin/gnomine 
> > -rwxr-xr-x   1 dirk     games      333605 Jul 16 15:48 /opt/gnome/bin/gnomine*
> > dirk@hobbes[~]> gnomine
> ---> gnomine is running

Well, those errors are not so strange at all. How does your mode 755
gnomine get the libraries ? Are they listed in /etc/ld.so.conf or do you
have LD_LIBRARY_PATH set ? You need to listen the directories containing
the libraries in /etc/ld.so.conf 'cause LD_LIBRARY_PATH is ignored for
suid and sgid programs. This is true at least under Linux, but AFAIK also
under every other system 'cause it would be a big security hole otherwise
(imagine someone could use his own /lib/libcrypt.so for /bin/su ...)

Martin

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