From c0ba6a9f5392be82de6844ab57e13f3b42758503 Mon Sep 17 00:00:00 2001
From: Sean Gilligan <sean@msgilligan.com>
Date: Fri, 19 Aug 2022 03:21:25 -0700
Subject: [PATCH] PeerAddress: Add I2P hostname parsing (WIP)

Note: this is not verified as correct encoding yet.
---
 core/src/main/java/org/bitcoinj/core/PeerAddress.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/src/main/java/org/bitcoinj/core/PeerAddress.java b/core/src/main/java/org/bitcoinj/core/PeerAddress.java
index 03fbe829a..089d972ae 100644
--- a/core/src/main/java/org/bitcoinj/core/PeerAddress.java
+++ b/core/src/main/java/org/bitcoinj/core/PeerAddress.java
@@ -282,6 +282,11 @@ public class PeerAddress extends ChildMessage {
                         addr = null;
                         break;
                     case I2P:
+                        if (addrLen != 32)
+                            throw new ProtocolException("invalid length of I2P address: " + addrLen);
+                        hostname = BASE32.encode(addrBytes).replace("=","") + ".b32.i2p";
+                        addr = null;
+                        break;
                     case CJDNS:
                         // ignore unimplemented network IDs for now
                         addr = null;