gistfile1.txt

 char *work_unit_name_path = malloc(snprintf(NULL, 0, "%s%s", "/", cluster_config->work_unit_name) + 1);
  sprintf(work_unit_name_path, "%s%s", "/", cluster_config->work_unit_name);

  int work_unit_ret_val = zoo_wget_children(zh, work_unit_name_path,
      verify_integrity_watcher, NULL,
      (struct String_vector *) malloc(sizeof(struct String_vector)));

  free(work_unit_name_path);