[pygtk] running pygtk application with root privileges

[Miki]

Hi again,
I wrote a simple C program:

#define PYTHON "/home/mikib/t.py"
main(argc, argv)
char **argv;
{
  setreuid(0,0);
  setregid(0,0);
  execvp(PYTHON, argv);
}


But after I compiled the C program and run it the Pyton program did not run
as 'root' user, and I'm getting this error:

Traceback (most recent call last):
  File "/home/mikib/t.py", line 5, in ?
    tt =3D file("/opt/ttt/1.txt","a")
IOError: [Errno 13] Permission denied: '/opt/ttt/1.txt'

I'm running Linux UBUNTU 6.10 :)

all I need is to write to some files that the users does not have a
permissions to those files like /etc/hosts.
Any idea how in Python I can open a file for write mode with privileges?

Thanks for any help,
Miki


On 3/12/07, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
> >
> > Miki wrote:
> >
> > > How can I run pygtk application in root (setuid) mode
> >
> > It would be very dangerous to run the whole application
> > setuid, since what a Python program does depends a lot
> > on the environment (via PYTHONPATH, etc).
> >
> > The usual advice in situations like this is to write
> > a small C program that does just the parts that really
> > need privilege, make that setuid, and control it from
> > the main application.
> >
> > > or how can I ask the user to enter the root password
> >
> > If the user needs to know the root password, then this
> > is a very different situation from "any user" being
> > able to run it! The sudo mechanism is better for this,
> > since it allows specific users to be given specific
> > abilities without having to give them the root password.
> >
> > --
> > Greg
> >
>
>
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