From e145a621c74c7d96674355891b3a7465d97c6f01 Mon Sep 17 00:00:00 2001
From: cketti <cketti@gmail.com>
Date: Mon, 28 Nov 2011 01:10:41 +0100
Subject: [PATCH] FixedLengthInputStream - increment mCount only when read()
 succeeds

Patch by andrewgaul
---
 src/com/fsck/k9/mail/filter/FixedLengthInputStream.java | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/com/fsck/k9/mail/filter/FixedLengthInputStream.java b/src/com/fsck/k9/mail/filter/FixedLengthInputStream.java
index f1cc21d90..612b877ee 100644
--- a/src/com/fsck/k9/mail/filter/FixedLengthInputStream.java
+++ b/src/com/fsck/k9/mail/filter/FixedLengthInputStream.java
@@ -27,8 +27,11 @@ public class FixedLengthInputStream extends InputStream {
     @Override
     public int read() throws IOException {
         if (mCount < mLength) {
-            mCount++;
-            return mIn.read();
+            int d = mIn.read();
+            if (d != -1) {
+                mCount++;
+            }
+            return d;
         } else {
             return -1;
         }