On Tue, Jun 06, 2017 at 07:15:01AM -0700, L A Walsh wrote:
> Karel Zak wrote:
> > ruid = getuid();
> > euid = geteuid();
> >
> > cxt->restricted = (uid_t) 0 == ruid && ruid == euid ? 0 : 1;
> >
> > in your case geteuid() returns 5013.
> ----
> But my EUID isn't 5013 ("LOGINUID" is). That's the complaint/bug.
The code it pretty simple, it just get euid from kernel and print
it. The error message is independent on another code and libmount.
I don't see any room for bug there. Your euid is 5013.
You can also try "strace -o log mount --types xxx /dev/foo /mnt/bar"
and see the "log" file where will be geteuid()...
This code is without relevant changes since 2011-01-10.
Karel
static void __attribute__((__noreturn__)) exit_non_root(const char *option)
{
const uid_t ruid = getuid();
const uid_t euid = geteuid();
if (ruid == 0 && euid != 0) {
/* user is root, but setuid to non-root */
if (option)
errx(MNT_EX_USAGE, _("only root can use \"--%s\" option "
"(effective UID is %u)"),
option, euid);
errx(MNT_EX_USAGE, _("only root can do that "
"(effective UID is %u)"), euid);
}
if (option)
errx(MNT_EX_USAGE, _("only root can use \"--%s\" option"), option);
errx(MNT_EX_USAGE, _("only root can do that"));
}
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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