case SD_BUS_TYPE_STRUCT_BEGIN:
case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
- char t[n-1];
-
- memcpy(t, p + 1, n - 2);
- t[n - 2] = 0;
-
- r = bus_gvariant_get_size(t);
- if (r < 0)
- return r;
+ if (n == 2) {
+ /* unary type () has fixed size of 1 */
+ r = 1;
+ } else {
+ char t[n-1];
+
+ memcpy(t, p + 1, n - 2);
+ t[n - 2] = 0;
+
+ r = bus_gvariant_get_size(t);
+ if (r < 0)
+ return r;
+ }
sum += r;
break;