From 8c221d48e95e8d99d99a6e04b9af8de5efedbe12 Mon Sep 17 00:00:00 2001
From: Mygod <contact-git@mygod.be>
Date: Wed, 4 Nov 2020 08:47:21 +0800
Subject: [PATCH] Check networkPrefixLength on stupid devices

---
 mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt b/mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt
index 57847a4a..6aff14f7 100644
--- a/mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt
+++ b/mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt
@@ -135,7 +135,7 @@ class Routing(private val caller: Any, private val downstream: String) : IpNeigh
 
     private val hostAddress = try {
         val iface = NetworkInterface.getByName(downstream) ?: error("iface not found")
-        val addresses = iface.interfaceAddresses!!.filter { it.address is Inet4Address }
+        val addresses = iface.interfaceAddresses!!.filter { it.address is Inet4Address && it.networkPrefixLength <= 32 }
         if (addresses.size > 1) error("More than one addresses was found: $addresses")
         addresses.first()
     } catch (e: Exception) {