From 977dd0bd93ede3b7528503a9e9ac9b9d9bdb6b9f Mon Sep 17 00:00:00 2001
From: Graham <gpe@openrs2.dev>
Date: Sat, 12 Sep 2020 14:56:56 +0100
Subject: [PATCH] Check that we read exactly uncompressedLen bytes

Signed-off-by: Graham <gpe@openrs2.dev>
---
 cache/src/main/java/dev/openrs2/cache/Js5Compression.kt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cache/src/main/java/dev/openrs2/cache/Js5Compression.kt b/cache/src/main/java/dev/openrs2/cache/Js5Compression.kt
index 206018f4..c0bd93e0 100644
--- a/cache/src/main/java/dev/openrs2/cache/Js5Compression.kt
+++ b/cache/src/main/java/dev/openrs2/cache/Js5Compression.kt
@@ -152,6 +152,10 @@ public object Js5Compression {
                         }
                         remaining -= n
                     }
+
+                    if (inputStream.read() != -1) {
+                        throw IOException("Uncompressed data overflow")
+                    }
                 }
 
                 return output.retain()