dnsdist: As suggested by Miod's, add the new payload size to the initial value of zero

rgacogne · miodvallat · web-flow · commit adafc96e491e · 2025-05-07T14:56:23.000+02:00
Co-authored-by: Miod Vallat &lt;miod.vallat@powerdns.com&gt;
diff --git a/pdns/dnsdistdist/dnsdist.cc b/pdns/dnsdistdist/dnsdist.cc
@@ -1725,7 +1725,7 @@ bool assignOutgoingUDPQueryToBackend(std::shared_ptr<DownstreamState>& downstrea
     try {
       size_t proxyProtocolPayloadSize = 0;
       if (addProxyProtocol(dnsQuestion, &proxyProtocolPayloadSize)) {
-        dnsQuestion.ids.d_proxyProtocolPayloadSize = proxyProtocolPayloadSize;
+        dnsQuestion.ids.d_proxyProtocolPayloadSize += proxyProtocolPayloadSize;
       }
     }
     catch (const std::exception& e) {

Original file line number	Diff line number	Diff line change
`@@ -1725,7 +1725,7 @@ bool assignOutgoingUDPQueryToBackend(std::shared_ptr<DownstreamState>& downstrea`
`1725`	`1725`	`try {`
`1726`	`1726`	`size_t proxyProtocolPayloadSize = 0;`
`1727`	`1727`	`if (addProxyProtocol(dnsQuestion, &proxyProtocolPayloadSize)) {`
`1728`		`- dnsQuestion.ids.d_proxyProtocolPayloadSize = proxyProtocolPayloadSize;`
	`1728`	`+ dnsQuestion.ids.d_proxyProtocolPayloadSize += proxyProtocolPayloadSize;`
`1729`	`1729`	`}`
`1730`	`1730`	`}`
`1731`	`1731`	`catch (const std::exception& e) {`