src: replace compound_expr_add() by type safe concat_expr_add()

Replace compound_expr_add by concat_expr_add() to validate type.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/expression.h b/include/expression.h
index 4dc6c192..0d9e10d7 100644
--- a/include/expression.h
+++ b/include/expression.h
@@ -531,6 +531,7 @@ extern void list_expr_sort(struct list_head *head);
 extern void list_splice_sorted(struct list_head *list, struct list_head *head);
 
 extern struct expr *concat_expr_alloc(const struct location *loc);
+void concat_expr_add(struct expr *concat, struct expr *item);
 
 extern struct expr *list_expr_alloc(const struct location *loc);
 struct expr *list_expr_to_binop(struct expr *expr);