How can i call a function which is usually used by root?
Fred Silsbee
fredsilsbee at yahoo.com
Tue Dec 2 17:42:31 UTC 2008
--- On Tue, 12/2/08, bruce <bedouglas at earthlink.net> wrote:
> From: bruce <bedouglas at earthlink.net>
> Subject: RE: How can i call a function which is usually used by root?
> To: "'Community assistance, encouragement, and advice for using Fedora.'" <fedora-list at redhat.com>
> Date: Tuesday, December 2, 2008, 4:04 PM
> hi...
>
> check out how to handle/setup a superuser group (sudo)
> which allows a normal
> user to assume the role/privs of the root/superuser for a
> specifically
> defined task.
>
> should handle your issue, if i understand what you're
> attempting. there
> should be examples on the 'net as well..
>
>
> -----Original Message-----
> From: fedora-list-bounces at redhat.com
> [mailto:fedora-list-bounces at redhat.com]On Behalf Of wk
> Sent: Tuesday, December 02, 2008 1:21 AM
> To: fedora-list
> Subject: How can i call a function which is usually used by
> root?
>
>
> I want write a c program.And a common user(not in root
> group) will run this
> program.
> In this program,I call fread(/dev/sdc...) and
> fwrite(/dev/sdc),but this call
> will return "permission no allow".If I use the
> root user,will be ok.
> How to change to the authority to root's?
>
> I know the root's password.
>
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study the following... s bit is what you want:
consider the function passwd...allows the user to alter a file owned by root
How does one set the sticky bit and set UID bits with chmod?
octal digit> 1 2 3 4
octal value
4 set UID r r r
2 set GID w w w
1 sticky bit x x x
r read
w write
x execute
s set UID or set GID
t set sticky bit
chmod u+st filename
chmod -R does down the tree
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