From d4e0ec8fb0c5d7bb713e69dfac6ab2fe3e2bbb7d Mon Sep 17 00:00:00 2001
From: Feng Yu <abcfy2@163.com>
Date: Sun, 5 Jul 2026 21:31:44 +0800
Subject: [PATCH] =?UTF-8?q?fix(ecs):=20singbox=20=E5=88=86=E6=94=AF?=
 =?UTF-8?q?=E8=A1=A5=E9=BD=90=20ecs=5Faddress=20=E5=88=A4=E7=A9=BA,?=
 =?UTF-8?q?=E5=A4=B1=E8=B4=A5=E6=97=B6=E7=BB=88=E7=AB=AF=E5=91=8A=E8=AD=A6?=
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singbox_modify.sh 之前 ecs_address 为空时仍写入 client_subnet:""，
导致 sing-box 启动时 netip.ParsePrefix("") 报 'no /' FATAL，
服务无法启动。根因是 get_ecsip.sh 在部分环境(如梅林 resolv.conf
无 # Interface wan 标记、members.3322.org 被限流)下拿不到公网 IP。

- singbox_modify.sh: 与 mihomo 分支对齐,加 [ -n ecs_address ] 判空,
  失败时不写字段并 logger 告警
- clash_modify.sh: logger 补颜色码 33(黄色),使告警同样打印到终端,
  原来无颜色码只写日志文件用户无感知
---
 scripts/starts/clash_modify.sh   | 2 +-
 scripts/starts/singbox_modify.sh | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/scripts/starts/clash_modify.sh b/scripts/starts/clash_modify.sh
index 8e539fa7..0424b35e 100644
--- a/scripts/starts/clash_modify.sh
+++ b/scripts/starts/clash_modify.sh
@@ -21,7 +21,7 @@ prepare_clash_base_config() {
             if [ -n "$ecs_address" ];then
                 dns_fallback=$(echo "$dns_fallback, " | sed "s|, |#ecs-override=true\&ecs=$ecs_address, |g" | sed 's|, $||')
             else
-                logger "自动获取ecs网段失败！"
+                logger "自动获取ecs网段失败！" 33
             fi
         }
     }
diff --git a/scripts/starts/singbox_modify.sh b/scripts/starts/singbox_modify.sh
index ebd19c3a..b430ec95 100644
--- a/scripts/starts/singbox_modify.sh
+++ b/scripts/starts/singbox_modify.sh
@@ -113,7 +113,11 @@ prepare_dns_config() {
     #ecs优化
     [ "$ecs_subnet" = ON ] && {
         . "$CRASHDIR"/libs/get_ecsip.sh
-        client_subnet='"client_subnet": "'"$ecs_address"'",'
+        if [ -n "$ecs_address" ]; then
+            client_subnet='"client_subnet": "'"$ecs_address"'",'
+        else
+            logger "自动获取ecs网段失败！" 33
+        fi
     }
     #根据dns模式生成
     [ "$dns_mod" = "redir_host" ] && {