optimize: add binop expression support

Do recursive call using left expression in the binop expression tree to
search for the primary expression.

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

diff --git a/src/optimize.c b/src/optimize.c
index 2063761a503af7e19c24448077f24a5e1858648f..54dde948876f4f57e5e88f1516eb8171783b433f 100644 (file)
--- a/src/optimize.c
+++ b/src/optimize.c
@@ -99,6 +99,8 @@ static bool __expr_cmp(const struct expr *expr_a, const struct expr *expr_b)
                if (expr_a->fib.result != expr_b->fib.result)
                        return false;
                break;
+       case EXPR_BINOP:
+               return __expr_cmp(expr_a->left, expr_b->left);
        default:
                return false;
        }