int main(int argc, char *argv[])
{
char *path;
gid_t gids[] = { TEST_SGID };
diod_log_init (argv[0]);
assert (geteuid () == 0);
/* clear supplemental groups */
_setgroups (0, NULL);
msg ("supplemental groups cleared");
assert (geteuid () == 0);
path = create_file (0, TEST_SGID, 0440);
change_fsid (0, 0, TEST_UID, TEST_GID);
assert (!read_file (path));
change_fsid (TEST_UID, TEST_GID, TEST_UID, TEST_SGID);
assert (read_file (path));
change_fsid (TEST_UID, TEST_SGID, TEST_UID, TEST_GID);
assert (!read_file (path));
/* set TEST_SGID in supplemental groups */
_setgroups (1, gids);
msg ("%d added to supplemental groups", gids[0]);
assert (read_file (path));
/* clear supplemental groups */
_setgroups (0, NULL);
msg ("supplemental groups cleared");
assert (!read_file (path));
/* clean up */
change_fsid (TEST_UID, TEST_GID, 0, 0);
_unlink (path);
msg ("test complete");
exit (0);
}
static void *proc2 (void *a)
{
gid_t g[] = { TEST_GID };
wait_state (S1);
show_groups ("task2");
msg ("task2: setgroups %d", TEST_GID);
_setgroups (1, g);
show_groups ("task2");
change_state (S2);
wait_state (S3);
show_groups ("task2");
change_state (S4);
return NULL;
}
int main(int argc, char *argv[])
{
pthread_t t1, t2;
diod_log_init (argv[0]);
assert (geteuid () == 0);
msg ("task0: setgroups (NULL)");
_setgroups (0, NULL);
show_groups ("task0");
_create (&t1, proc1, NULL);
_create (&t2, proc2, NULL);
_join (t2, NULL);
_join (t1, NULL);
show_groups ("task0");
exit (0);
}
