diff mbox series

[nft,v4,6/7] evaluate: allow for zero length ranges

Message ID 20220412144711.93354-7-pablo@netfilter.org
State Changes Requested
Delegated to: Pablo Neira
Headers show
Series [nft,v4,1/7] src: add EXPR_F_KERNEL to identify expression in the kernel | expand

Commit Message

Pablo Neira Ayuso April 12, 2022, 2:47 p.m. UTC 
Allow for ranges such as, eg. 30-30.

This is required by the new intervals.c code, which normalize constant,
prefix set elements to all ranges.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 src/evaluate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/src/evaluate.c b/src/evaluate.c
index 9951a8349249..c79f3429eb2a 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -1017,7 +1017,7 @@  static int expr_evaluate_range(struct eval_ctx *ctx, struct expr **expr)
 	left = range->left;
 	right = range->right;
 
-	if (mpz_cmp(left->value, right->value) >= 0)
+	if (mpz_cmp(left->value, right->value) > 0)
 		return expr_error(ctx->msgs, range,
 				  "Range has zero or negative size");
 	datatype_set(range, left->dtype);