From 7803f863b4c364fa756ba93a86019ae41f789c9f Mon Sep 17 00:00:00 2001
From: markt <markt@13f79535-47bb-0310-9956-ffa450edef68>
Date: Wed, 18 Oct 2006 02:26:48 +0000
Subject: [PATCH] Port fix bug 40771. Correct doRead method so Filters and
 Valves can read POST data. patch provided by Michael Dufel.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk@465126 13f79535-47bb-0310-9956-ffa450edef68
---
 java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java b/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java
index 2fd2f6533..3b1517d46 100644
--- a/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java
+++ b/java/org/apache/coyote/http11/filters/SavedRequestInputFilter.java
@@ -55,6 +55,9 @@ public class SavedRequestInputFilter implements InputFilter {
         	writeLength = input.getLength();
         }
         
+        if(input.getOffset()>= input.getEnd())
+            return -1;
+        
         input.substract(chunk.getBuffer(), 0, writeLength);
         chunk.setOffset(0);
         chunk.setEnd(writeLength);
-- 
2.11.0