MAP_NAME_MAX_LEN
ret = snprintf(cmd, MAP_NAME_MAX_LEN, "cat %s", iter_pin_path);
char map_handle[MAP_NAME_MAX_LEN];
ret = snprintf(map_handle, MAP_NAME_MAX_LEN, "pinned %s",
ret = snprintf(map_handle, MAP_NAME_MAX_LEN, "name %s",