From 3ae8db972e13745934134d71fa1557b4cc3acd34 Mon Sep 17 00:00:00 2001
From: 2dust <31833384+2dust@users.noreply.github.com>
Date: Sun, 2 Aug 2026 14:53:57 +0800
Subject: [PATCH] Fix ipv6 hosts

https://github.com/2dust/v2rayNG/issues/5965
---
 .../main/java/com/v2ray/ang/core/CoreConfigManager.kt | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreConfigManager.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreConfigManager.kt
index 7e08f7be..4cc21c6b 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreConfigManager.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreConfigManager.kt
@@ -915,9 +915,14 @@ object CoreConfigManager {
         val userHosts = MmkvManager.decodeSettingsString(AppConfig.PREF_DNS_HOSTS)
         if (userHosts.isNotNullEmpty()) {
             val userHostsMap = userHosts?.split(",").orEmpty()
-                .filter { it.isNotEmpty() }
-                .filter { it.contains(":") }
-                .associate { it.split(":").let { (k, v) -> k to v } }
+                .filter { it.isNotBlank() && it.contains(":") }
+                .associate {
+                    // Use limit = 2 to split only at the first colon.
+                    // This ensures that IPv6 addresses (which contain multiple colons)
+                    // are preserved entirely in the second part.
+                    val parts = it.split(":", limit = 2)
+                    parts[0].trim() to parts[1].trim()
+                }
             hosts.putAll(userHostsMap)
         }