From: Wouter Wijngaards <wouter@nlnetlabs.nl>
Date: Tue, 2 Jan 2018 13:36:17 +0000 (+0000)
Subject: fix oneoff
X-Git-Tag: release-1.7.0rc1~125
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=21d1989e0588a2da6dc1d60c89d9e0941fa9ded8;p=thirdparty%2Funbound.git

fix oneoff


git-svn-id: file:///svn/unbound/trunk@4433 be551aaa-1e26-0410-a405-d3ace91eadb9
---

diff --git a/validator/val_sigcrypt.c b/validator/val_sigcrypt.c
index 951d79edb..2d52f0f5f 100644
--- a/validator/val_sigcrypt.c
+++ b/validator/val_sigcrypt.c
@@ -1236,7 +1236,7 @@ subtract_1918(uint32_t a, uint32_t b)
 		return b-a;
 	}
 	if(a > b && a - b > cutoff) {
-		return ((uint32_t)0xffffffff) - (a-b);
+		return ((uint32_t)0xffffffff) - (a-b-1);
 	}
 	/* wrong case, b smaller than a */
 	return 0;