assert(cgroup);
assert(unit);
+#if 0 /// elogind has a different naming: <controller>:/<session id>. So prefix is always len < 3
n = strcspn(cgroup, "/");
if (n < 3)
return -ENXIO;
+#else
+ n = strspn(cgroup, "/") + 1;
+#endif // 0
c = strndupa(cgroup, n);
c = cg_unescape(c);
+#if 0 /// elogind session ids are never valid unit names.
if (!unit_name_is_valid(c, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE))
return -ENXIO;
+#endif // 0
s = strdup(c);
if (!s)