int cil_gen_common(struct cil_db *db, struct cil_tree_node *parse_current, struct cil_tree_node *ast_node)
{
	enum cil_syntax syntax[] = {
		CIL_SYN_STRING,
		CIL_SYN_STRING,
		CIL_SYN_LIST,
		CIL_SYN_END
	};
	int syntax_len = sizeof(syntax)/sizeof(*syntax);
	char *key = NULL;
	struct cil_class *common = NULL;
	int rc = SEPOL_ERR;

	if (db == NULL || parse_current == NULL || ast_node == NULL) {
		goto exit;
	}

	rc = __cil_verify_syntax(parse_current, syntax, syntax_len);
	if (rc != SEPOL_OK) {
		goto exit;
	}

	cil_class_init(&common);

	key = parse_current->next->data;

	rc = cil_gen_node(db, ast_node, (struct cil_symtab_datum*)common, (hashtab_key_t)key, CIL_SYM_COMMONS, CIL_COMMON);
	if (rc != SEPOL_OK) {
		goto exit;
	}

	rc = cil_gen_perm_nodes(db, parse_current->next->next->cl_head, ast_node, CIL_PERM, &common->num_perms);
	if (rc != SEPOL_OK) {
		goto exit;
	}
	if (common->num_perms > CIL_PERMS_PER_CLASS) {
		cil_tree_log(parse_current, CIL_ERR, "Too many permissions in common '%s'", common->datum.name);
		goto exit;
	}

	return SEPOL_OK;

exit:
	cil_tree_log(parse_current, CIL_ERR, "Bad common declaration");
	cil_destroy_class(common);
	cil_clear_node(ast_node);
	return rc;

}
int cil_gen_common(struct cil_db *db, struct cil_tree_node *parse_current, struct cil_tree_node *ast_node)
{
	enum cil_syntax syntax[] = {
		CIL_SYN_STRING,
		CIL_SYN_STRING,
		CIL_SYN_LIST,
		CIL_SYN_END
	};
	int syntax_len = sizeof(syntax)/sizeof(*syntax);
	char *key = NULL;
	struct cil_class *common = NULL;
	int rc = SEPOL_ERR;

	if (db == NULL || parse_current == NULL || ast_node == NULL) {
		goto exit;
	}

	rc = __cil_verify_syntax(parse_current, syntax, syntax_len);
	if (rc != SEPOL_OK) {
		goto exit;
	}

	cil_class_init(&common);

	key = parse_current->next->data;

	rc = cil_gen_node(db, ast_node, (struct cil_symtab_datum*)common, (hashtab_key_t)key, CIL_SYM_COMMONS, CIL_COMMON);
	if (rc != SEPOL_OK) {
		goto exit;
	}

	rc = cil_gen_perm_nodes(db, parse_current->next->next->cl_head, ast_node, CIL_PERM, &common->num_perms);
	if (rc != SEPOL_OK) {
		goto exit;
	}
	if (common->num_perms > CIL_PERMS_PER_CLASS) {
		cil_tree_log(parse_current, CIL_ERR, "Too many permissions in common '%s'", common->datum.name);
		goto exit;
	}

	return SEPOL_OK;

exit:
	cil_tree_log(parse_current, CIL_ERR, "Bad common declaration");
	cil_destroy_class(common);
	cil_clear_node(ast_node);
	return rc;

}