From ed16d4b7deb767f10db80ba57fca3721ac814c92 Mon Sep 17 00:00:00 2001
From: Wei Huang <weih@google.com>
Date: Thu, 24 Sep 2009 15:04:01 -0700
Subject: [PATCH] Fix bug#2144742: guard against 0 length encoded string when
 attaching a 'from' address for MMS.

Change-Id: I0aad5b3d2834695b44cbb63e40c43a2159b723d9
---
 core/java/com/google/android/mms/pdu/PduComposer.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/java/com/google/android/mms/pdu/PduComposer.java b/core/java/com/google/android/mms/pdu/PduComposer.java
index 8b31936f609e5..2aa5e48f507ee 100644
--- a/core/java/com/google/android/mms/pdu/PduComposer.java
+++ b/core/java/com/google/android/mms/pdu/PduComposer.java
@@ -19,6 +19,8 @@ package com.google.android.mms.pdu;
 
 import android.content.ContentResolver;
 import android.content.Context;
+import android.util.Log;
+import android.text.TextUtils;
 
 import java.io.ByteArrayOutputStream;
 import java.io.FileNotFoundException;
@@ -528,6 +530,7 @@ public class PduComposer {
 
                 EncodedStringValue from = mPduHeader.getEncodedStringValue(field);
                 if ((from == null)
+                        || TextUtils.isEmpty(from.getString())
                         || new String(from.getTextString()).equals(
                                 PduHeaders.FROM_INSERT_ADDRESS_TOKEN_STR)) {
                     // Length of from = 1