[PATCH nft 1/2] evaluate: replace variable expression by the value expression

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The variable expression provides the binding between the variable
dereference and the value expression. Replace the variable expression by
the real value expression after the evaluation.

Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
 src/evaluate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/evaluate.c b/src/evaluate.c
index 4ec91a1ce771..5111dce55eb6 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -2013,10 +2013,13 @@ static int expr_evaluate_variable(struct eval_ctx *ctx, struct expr **exprp)
 {
 	struct expr *new = expr_clone((*exprp)->sym->expr);
 
+	if (expr_evaluate(ctx, &new) < 0)
+		return -1;
+
 	expr_free(*exprp);
 	*exprp = new;
 
-	return expr_evaluate(ctx, exprp);
+	return 0;
 }
 
 static int expr_evaluate_xfrm(struct eval_ctx *ctx, struct expr **exprp)
-- 
2.20.1




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