+ return k;
+}
+
+static int enumerate_dir_d(Hashmap *top, Hashmap *bottom, Hashmap *drops, const char *toppath, const char *drop) {
+ _cleanup_free_ char *unit = NULL;
+ _cleanup_free_ char *path = NULL;
+ _cleanup_strv_free_ char **list = NULL;
+ char **file;
+ char *c;
+ int r;
+
+ assert(!endswith(drop, "/"));
+
+ path = strjoin(toppath, "/", drop, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ log_debug("Looking at %s", path);
+
+ unit = strdup(drop);
+ if (!unit)
+ return -ENOMEM;
+
+ c = strrchr(unit, '.');
+ if (!c)
+ return -EINVAL;
+ *c = 0;
+
+ r = get_files_in_directory(path, &list);
+ if (r < 0){
+ log_error("Failed to enumerate %s: %s", path, strerror(-r));
+ return r;
+ }
+
+ STRV_FOREACH(file, list) {
+ Hashmap *h;
+ int k;
+ char *p;
+ char *d;
+
+ if (!endswith(*file, ".conf"))
+ continue;
+
+ p = strjoin(path, "/", *file, NULL);
+ if (!p)
+ return -ENOMEM;
+ d = p + strlen(toppath) + 1;
+
+ log_debug("Adding at top: %s %s %s", d, draw_special_char(DRAW_ARROW), p);
+ k = hashmap_put(top, d, p);
+ if (k >= 0) {
+ p = strdup(p);
+ if (!p)
+ return -ENOMEM;
+ d = p + strlen(toppath) + 1;
+ } else if (k != -EEXIST) {
+ free(p);
+ return k;
+ }
+
+ log_debug("Adding at bottom: %s %s %s", d, draw_special_char(DRAW_ARROW), p);
+ free(hashmap_remove(bottom, d));
+ k = hashmap_put(bottom, d, p);
+ if (k < 0) {
+ free(p);
+ return k;
+ }