From b0fc5832f4bac39e879495a7e2f8c0268fb83cdb Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Tue, 9 Feb 2021 13:07:37 +0100
Subject: [PATCH] ntp: require port match in address update

In NSR_UpdateSourceNtpAddress() and other updates of the address require
that the old port matches the current source's port.
---
 ntp_sources.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ntp_sources.c b/ntp_sources.c
index 63e16de..537f651 100644
--- a/ntp_sources.c
+++ b/ntp_sources.c
@@ -370,7 +370,7 @@ change_source_address(NTP_Remote_Address *old_addr, NTP_Remote_Address *new_addr
   char *name;
 
   found = find_slot2(old_addr, &slot1);
-  if (found == 0)
+  if (found != 2)
     return NSR_NoSuchSource;
 
   /* Make sure there is no other source using the new address (with the same