From ddba6ae1a607ac2a7bc5487b65d695dd34bb49ad Mon Sep 17 00:00:00 2001
From: emanuele-f <black.silver@hotmail.it>
Date: Wed, 20 May 2026 22:41:07 +0200
Subject: [PATCH] Fix IPv6 addresses rejected in Android 9 and below

Due to this bug, IPv6 could not be used for rules or in the
intent-based API
---
 app/src/main/java/com/emanuelef/remote_capture/Utils.java | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/app/src/main/java/com/emanuelef/remote_capture/Utils.java b/app/src/main/java/com/emanuelef/remote_capture/Utils.java
index 24050db3..c8362c73 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/Utils.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/Utils.java
@@ -1636,7 +1636,7 @@ public class Utils {
 
     // from bouncycastle
     private static boolean isValidIPv6(String address) {
-        if (address.length() == 0)
+        if (address.isEmpty())
             return false;
 
         char firstChar = address.charAt(0);
@@ -1712,10 +1712,8 @@ public class Utils {
     public static boolean validateIpAddress(String value) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
             return (InetAddresses.isNumericAddress(value));
-        else {
-            Matcher matcher = Patterns.IP_ADDRESS.matcher(value);
-            return(matcher.matches());
-        }
+        else
+            return validateIpv4Address(value) || isValidIPv6(value);
     }
 
     public static boolean validateHostOrIp(String value) {