[Gambas-user] Possible Error In EXEC and SHELL cmd: kdesu vs gksu

[Steven James Drinnan]

This is the example very simple, but it only works 10% of the time.

Benoît, can you see if there is a problem.

I know about using Input Output instead of Read write. But this example
only works sometimes. Very strange.

It when it fails it does not wait for a password entry.

I have even used the console example and changed the EXEC line to INPUT
OUTPUT. And it produces the same error. 

Any thoughts.

Steven.



On Wed, 2009-05-20 at 11:10 +0800, Steven James Drinnan wrote:
> For me I would use neither, it would rely on those packages being
> available. In Fedora it uses its own graphical system - sorry can tell
> you the name its linked directly to the authentication system. As such
> those packages are nowhere to be seen.
> 
> Instead let your package do the checking using shell. 
> 
> There some examples around. If you need I can give you one that you can
> add in to the sample given by Jose J. Rodriguez.
> 
> Steven.
> 
> 
> 
> On Tue, 2009-05-19 at 22:00 +0200, Jesus Guardon wrote:
> > Thanks, Jose
> > 
> > This is a good approach, too. But also not perfect, ;-) ... A friend of 
> > mine tells that in his Debian testing (KDE), no kdesu is available. 
> > Instead it have 'kdesudo', so in this case your code (and David's too) 
> > might fail. We must check for this, too.
> > 
> > Another issue is that I want to start, is a daemon process and a bit 
> > later, another process that connects to this daemon. So, to clarify:
> > 
> > 1st) I start a daemon with shell "gksu -u root 'some process'"
> > 
> > 2nd) Meanwhile (we type the passwd), the other process has started, but 
> > no host to connect to, because this process has started before the 1st 
> > one, which is the host. So my client process fails misserably.
> > 
> > I'm not be able to use WAIT in the first shell statement, because a 
> > daemon never stops running, so I need to insert a 'WAIT n' in between, 
> > not very elegant...
> > 
> > Sorry for the brick
> > 
> > Best regards
> > 
> > Jesus
> > 
> > Jose J. Rodriguez escribió:
> > > On 5/18/09, Jesus Guardon <jguardon at ...2035...> wrote:
> > >> Yes, I know it may be a little off-topic, but the question is:
> > >>
> > >>  I need to launch a process with root privileges from SHELL command in
> > >>  Gambas. Users of my application can have Gnome or KDE, so I don't know
> > >>  which command I must issue to get it to work.
> > >>
> > >>  Is there a way to choose between either gksu o kdesu commands at runtime?
> > >>  I've figured it out if it could be something like:
> > >>
> > >>   SHELL "gksu | kdesu -u root 'some_command'"
> > >>
> > >>  or
> > >>
> > >>  SHELL "gksu -u root 'some_command' | kdesu -u root 'some_command'"
> > >>
> > > 
> > > Here's what I do in the vl-hot-config utility:
> > > 
> > > *******************************************************
> > > ' Gambas module file
> > > 
> > > PUBLIC SUB Main()
> > > DIM MyProc AS Process
> > > DIM Ret AS String
> > > 
> > > IF System.User.Id <> 0 THEN
> > >    EXEC ["which", "kdesu"] TO Ret
> > >    IF InStr(Ret, "kdesu") THEN
> > >       EXEC ["kdesu", Application.Path &/ "vl-hot-config.gambas"]
> > >    ELSE
> > >       EXEC ["which", "gksu"] TO Ret
> > >       IF InStr(Ret, "gksu") THEN
> > >          EXEC ["gksu", Application.Path &/ "vl-hot-config.gambas"]
> > >       ELSE
> > >          PRINT "No kdesu or gksu available (vl-hot-config needs to run
> > > as root)..."
> > >       ENDIF
> > >    ENDIF
> > >    QUIT
> > > ENDIF
> > > 
> > > FMain.Show
> > > 
> > > END
> > > *******************************************************
> > > 
> > > Regards,
> > > Joe1962
> > > 
> > > ------------------------------------------------------------------------------
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> > > 
> > 
> > 
> > ------------------------------------------------------------------------------
> > Crystal Reports - New Free Runtime and 30 Day Trial
> > Check out the new simplified licensing option that enables 
> > unlimited royalty-free distribution of the report engine 
> > for externally facing server and web deployment. 
> > http://p.sf.net/sfu/businessobjects
> > _______________________________________________
> > Gambas-user mailing list
> > Gambas-user at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/gambas-user
> > 
> 
> 
> ------------------------------------------------------------------------------
> Crystal Reports - New Free Runtime and 30 Day Trial
> Check out the new simplified licensing option that enables 
> unlimited royalty-free distribution of the report engine 
> for externally facing server and web deployment. 
> http://p.sf.net/sfu/businessobjects
> _______________________________________________
> Gambas-user mailing list
> Gambas-user at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gambas-user
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