From 58da9034724f16b10478b4598c9c0cb43b190930 Mon Sep 17 00:00:00 2001
From: Charles-Henri Bruyand <charles-henri.bruyand@open-xchange.com>
Date: Tue, 27 Mar 2018 22:41:18 +0200
Subject: [PATCH] rec: allow to bind on udp port 1024

---
 pdns/pdns_recursor.cc               | 8 ++++----
 pdns/recursordist/docs/settings.rst | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/pdns/pdns_recursor.cc b/pdns/pdns_recursor.cc
index 302d2863bf..4957393c93 100644
--- a/pdns/pdns_recursor.cc
+++ b/pdns/pdns_recursor.cc
@@ -3237,13 +3237,13 @@ static int serviceMain(int argc, char*argv[])
   }
 
   int port = ::arg().asNum("udp-source-port-min");
-  if(port < 1025 || port > 65535){
+  if(port < 1024 || port > 65535){
     L<<Logger::Error<<"Unable to launch, udp-source-port-min is not a valid port number"<<endl;
     exit(99); // this isn't going to fix itself either
   }
   s_minUdpSourcePort = port;
   port = ::arg().asNum("udp-source-port-max");
-  if(port < 1025 || port > 65535 || port < s_minUdpSourcePort){
+  if(port < 1024 || port > 65535 || port < s_minUdpSourcePort){
     L<<Logger::Error<<"Unable to launch, udp-source-port-max is not a valid port number or is smaller than udp-source-port-min"<<endl;
     exit(99); // this isn't going to fix itself either
   }
@@ -3253,7 +3253,7 @@ static int serviceMain(int argc, char*argv[])
   for (const auto &part : parts)
   {
     port = std::stoi(part);
-    if(port < 1025 || port > 65535){
+    if(port < 1024 || port > 65535){
       L<<Logger::Error<<"Unable to launch, udp-source-port-avoid contains an invalid port number: "<<part<<endl;
       exit(99); // this isn't going to fix itself either
     }
@@ -3577,7 +3577,7 @@ int main(int argc, char **argv)
     ::arg().set("xpf-allow-from","XPF information is only processed from these subnets")="";
     ::arg().set("xpf-rr-code","XPF option code to use")="0";
 
-    ::arg().set("udp-source-port-min", "Minimum UDP port to bind on")="1025";
+    ::arg().set("udp-source-port-min", "Minimum UDP port to bind on")="1024";
     ::arg().set("udp-source-port-max", "Maximum UDP port to bind on")="65535";
     ::arg().set("udp-source-port-avoid", "List of comma separated UDP port number to avoid")="11211";
 
diff --git a/pdns/recursordist/docs/settings.rst b/pdns/recursordist/docs/settings.rst
index cb5348ccd0..dbcb127a56 100644
--- a/pdns/recursordist/docs/settings.rst
+++ b/pdns/recursordist/docs/settings.rst
@@ -1074,7 +1074,7 @@ May destroy performance under load.
 .. versionadded:: 4.2.0
 
 -  Integer
--  Default: 1025
+-  Default: 1024
 
 This option sets the low limit of UDP port number to bind on.
 
-- 
2.47.2