From ce86c1c5e560809a158596f0128e11c09637d71a Mon Sep 17 00:00:00 2001
From: hotyue <52734432+hotyue@users.noreply.github.com>
Date: Thu, 4 Jun 2026 06:28:14 +0000
Subject: [PATCH] =?UTF-8?q?fix(master):=20=E4=BF=AE=E5=A4=8D=E4=B8=AD?=
 =?UTF-8?q?=E6=9E=A2=E5=88=AB=E5=90=8D(MASTER=5FNODE=5FNAME)=E7=9A=84?=
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---
 install/master_setup.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/install/master_setup.sh b/install/master_setup.sh
index 075884f9..abaea5bb 100755
--- a/install/master_setup.sh
+++ b/install/master_setup.sh
@@ -149,7 +149,10 @@ do_master_config() {
         read -p "请输入中枢展示别名 (如'美西主控机', 回车使用默认): " CUSTOM_MASTER_ALIAS
 
         if [ -n "$CUSTOM_MASTER_ALIAS" ]; then
-            MASTER_NODE_NAME=$(echo "$CUSTOM_MASTER_ALIAS" | tr -d '"'\''\`\$\|&;<>\n\r' | cut -c 1-20)
+            # 强制声明 UTF-8 环境，丢弃危险的 cut -c 字节切分，改用 Bash 原生字符切片防御中文乱码
+            export LC_ALL=C.UTF-8 2>/dev/null || export LC_ALL=en_US.UTF-8 2>/dev/null || true
+            CLEAN_ALIAS=$(echo "$CUSTOM_MASTER_ALIAS" | tr -d '"'\''\`\$\|&;<>\n\r')
+            MASTER_NODE_NAME="${CLEAN_ALIAS:0:20}"
             [ -z "$MASTER_NODE_NAME" ] && MASTER_NODE_NAME="$MASTER_NODE"
         else
             MASTER_NODE_NAME="$MASTER_NODE"