From daeac68c1542b3c3479b046626d75fc1f9ba0039 Mon Sep 17 00:00:00 2001
From: pankcuf <rastacake@gmail.com>
Date: Fri, 14 Jul 2023 18:30:19 +0700
Subject: [PATCH] fix: limit protocol version support with upper bound

---
 DashSync/shared/Models/Network/DSPeer.m | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/DashSync/shared/Models/Network/DSPeer.m b/DashSync/shared/Models/Network/DSPeer.m
index fd975ff07..caee03c48 100644
--- a/DashSync/shared/Models/Network/DSPeer.m
+++ b/DashSync/shared/Models/Network/DSPeer.m
@@ -855,9 +855,9 @@ - (void)acceptVersionMessage:(NSData *)message {
     }
     _lastBlockHeight = [message UInt32AtOffset:80 + l.unsignedIntegerValue];
 
-    if (self.version < self.chain.minProtocolVersion) {
+    if (self.version < self.chain.minProtocolVersion || self.version > self.chain.protocolVersion) {
 #if MESSAGE_LOGGING
-        DSLog(@"%@:%u protocol version %u not supported, useragent:\"%@\"", self.host, self.port, self.version, self.useragent);
+        DSLog(@"%@:%u protocol version %u not supported, valid versions are: [%u, %u], useragent:\"%@\", ", self.host, self.port, self.version, self.chain.minProtocolVersion, self.chain.protocolVersion, self.useragent);
 #endif
         [self error:@"protocol version %u not supported", self.version];
         return;