From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Tue, 10 Oct 2023 08:32:03 +0000 (+0200)
Subject: dnsdist: Prevent a warning about pointer arithmetic use
X-Git-Tag: dnsdist-1.9.0-alpha2~4^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F13347%2Fhead;p=thirdparty%2Fpdns.git

dnsdist: Prevent a warning about pointer arithmetic use
---

diff --git a/pdns/dnsdist.cc b/pdns/dnsdist.cc
index 8ceb242346..8e2eee70c1 100644
--- a/pdns/dnsdist.cc
+++ b/pdns/dnsdist.cc
@@ -1572,7 +1572,7 @@ bool assignOutgoingUDPQueryToBackend(std::shared_ptr<DownstreamState>& ds, uint1
     auto proxyProtocolPayloadSize = dq.ids.d_proxyProtocolPayloadSize;
     auto idOffset = ds->saveState(std::move(dq.ids));
     /* set the correct ID */
-    memcpy(query.data() + proxyProtocolPayloadSize, &idOffset, sizeof(idOffset));
+    memcpy(&query.at(proxyProtocolPayloadSize), &idOffset, sizeof(idOffset));
 
     /* you can't touch ids or du after this line, unless the call returned a non-negative value,
        because it might already have been freed */