static int exist_dir(char *dname)
{
	int i;
	int num_entries;
	cs1550_directory_entry **entries;

	num_entries = get_dirs(entries);

	for (i = 0; i< num_entries; i++) {
		if (entries[i]->dname == dname) {
			free_dirs(entries, num_entries);
			return 1;
		}
	}

	free_dirs(entries, num_entries);
	return 0;
}