Settime_bypass problem ?

[Erminio Baranzini]

--- Ben Escoto <bescoto@stanford.edu> wrote:
> >>>>> "EB" == Erminio Baranzini <aredat@yahoo.com>
> >>>>> wrote the following on Mon, 29 Apr 2002
> 23:43:17 -0700 (PDT)
> 
>   EB> Yes, you are right, it works as root without
> the
>   EB> --change-source-perms option.
> 
>   EB> Still wondering why. Could this be checked
> starting the
>   EB> programm?
> 
> I'm not sure why either.  The error message said
> operation not
> permitted changing the time of /bin/rcp.  I'm not
> sure why you
> wouldn't be able to do that as root.  If you like,
> type in 'python'
> and then:
> 
> Python 2.2b2 (#1, Nov 28 2001, 12:53:18) 
> [GCC 2.96 20000731 (Red Hat Linux 7.1 2.96-101)] on
> linux2
> Type "help", "copyright", "credits" or "license" for
> more information.
> >>> import os
> >>> os.utime("/bin/rcp", (2,3))
> >>>
> 
> Note this should mess up the modification and access
> times on
> /bin/rcp, so don't do this if those are important to
> you.  Or maybe
> 
> cp -a /bin/rcp /tmp/rcp
> 
> first, and then
> 
> cp -a /tmp/rcp /bin/rcp
> 
> afterwards to set things as they were.  Anyway, if
> you get an error
> then we'll know it's something about the way your
> system deals with
> times.  I've never tried rdiff-backup on FreeBSD, so
> that is probably
> the issue.
> 
> 
> --
> Ben Escoto

I have tried it (seems without success):

# whoami
root
# ls -la /bin/rcp
-r-sr-xr-x  1 root  wheel  244872 Feb 17 13:51
/bin/rcp
# python
Python 2.2 (#1, Mar 20 2002, 13:17:06) 
[GCC 2.95.3 20010315 (release) [FreeBSD]] on freebsd4
Type "help", "copyright", "credits" or "license" for
more information.
>>> import os
>>> os.utime("/bin/rcp",(2,3))
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
OSError: [Errno 1] Operation not permitted: '/bin/rcp'
>>> 
#

The same as non-root user.

Thanks

Erminio


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