On Tue, Dec 02, 2008 at 05:21:24PM +0800, wk wrote:
>
> 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.
Your best bet is "sudo" or better look at the pairs of tools like:
/usr/bin/system-config-bind
/usr/sbin/system-config-bind
They take advantage of "consolehelper" and the commone case that
/usr/sbin is not in the search path of commmon users but /usr/bin is.
Note well, From the man page:
consolehelper requires that a PAM configuration for every managed pro-
gram exist. So to make /sbin/foo or /usr/sbin/foo managed, you need to
create a link from /usr/bin/foo to /usr/bin/consolehelper and create
the file /etc/pam.d/foo, normally using the pam_console(8) PAM module.
--
T o m M i t c h e l l
Found me a new hat, now what?
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