On 07/30/2013 03:27 AM, Lennart Poettering wrote:
The same component that creates the temporary directory?
In pseudo code:
char temp[] = "/tmp/krb.XXXXXX", link[PATH_MAX];
char *machine_id, *home;
mkdtemp(temp);
machine_id = get_file_contents("/etc/machine_id");
*strchrnul(machined_id, '\n') = 0;
home = getenv("HOME);
snprintf(link, "%s/.krb-%s", home, machine_id);
symlink(temp, link);
Of course, you should skip this if the symlink already exists and points
to a valid directory...
I'm not sure if this is a supported use case, but the above breaks if
/home is mounted on multiple machines.
--
Florian Weimer / Red Hat Product Security Team
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