From f7acbfb3b6ccd7ca1bd93950eebaa0eecfc36924 Mon Sep 17 00:00:00 2001
From: 5aaee9 <7685264+5aaee9@users.noreply.github.com>
Date: Tue, 21 May 2024 18:03:49 +0800
Subject: [PATCH] fix(tun/darwin): calculate correct tunIndex

---
 listener/sing_tun/server.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/listener/sing_tun/server.go b/listener/sing_tun/server.go
index 2dc6524e..b1be5dfb 100644
--- a/listener/sing_tun/server.go
+++ b/listener/sing_tun/server.go
@@ -59,12 +59,14 @@ func CalculateInterfaceName(name string) (tunName string) {
 	if err != nil {
 		return
 	}
-	var tunIndex int
+	var tunIndex int = 0
 	for _, netInterface := range interfaces {
 		if strings.HasPrefix(netInterface.Name, tunName) {
 			index, parseErr := strconv.ParseInt(netInterface.Name[len(tunName):], 10, 16)
 			if parseErr == nil {
-				tunIndex = int(index) + 1
+				if int(index)+1 > tunIndex {
+					tunIndex = int(index) + 1
+				}
 			}
 		}
 	}