From 8edae3dfd3f594ca1b24c8365561f1f8c059440e Mon Sep 17 00:00:00 2001
From: Nick Pelly <npelly@google.com>
Date: Thu, 18 Jun 2009 16:23:15 -0700
Subject: [PATCH] Fix bug in BluetoothInputStream.read().

InputStream.read() must return values in range [0, 255]. But the previous code
would sign extend when casting to int so return [-128, 127]. Bitwise AND with
0xff to remove sign extension.
---
 core/java/android/bluetooth/BluetoothInputStream.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/java/android/bluetooth/BluetoothInputStream.java b/core/java/android/bluetooth/BluetoothInputStream.java
index e6f501c9b69f0..c060f3263eeb6 100644
--- a/core/java/android/bluetooth/BluetoothInputStream.java
+++ b/core/java/android/bluetooth/BluetoothInputStream.java
@@ -59,7 +59,7 @@ import java.io.InputStream;
         byte b[] = new byte[1];
         int ret = mSocket.readNative(b, 0, 1);
         if (ret == 1) {
-            return (int)b[0];
+            return (int)b[0] & 0xff;
         } else {
             return -1;
         }