Author: markt
Date: Mon Jul 11 22:27:06 2011
New Revision: 1145383

URL: http://svn.apache.org/viewvc?rev=1145383&view=rev
Log:
Protect against infinite loops in the HTTP NIO connector if sendfile is 
configured to send more data than is available in the file. (markt)
Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java
    tomcat/trunk/webapps/docs/changelog.xml

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java
URL: 
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java?rev=1145383&r1=1145382&r2=1145383&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java (original)
+++ tomcat/trunk/java/org/apache/tomcat/util/net/NioEndpoint.java Mon Jul 11 
22:27:06 2011
@@ -1240,6 +1240,13 @@ public class NioEndpoint extends Abstrac
                         sd.pos += written;
                         sd.length -= written;
                         attachment.access();
+                    } else {
+                        // Unusual not to be unable to transfer any bytes
+                        // Check the length was set correctly
+                        if (sd.fchannel.size() <= sd.pos) {
+                            throw new IOException("Sendfile configured to " +
+                                    "send more data than was available");
+                        }
                     }
                 }
                 if ( sd.length <= 0 && sc.getOutboundRemaining()<=0) {

Modified: tomcat/trunk/webapps/docs/changelog.xml
URL: 
http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1145383&r1=1145382&r2=1145383&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Mon Jul 11 22:27:06 2011
@@ -120,6 +120,10 @@
         Add missing thread name in RequestProcessor when Servlet 3 Async
         is used. Fixes null thread name in access log and JMX MBean. (rjung)
       </fix>
+      <fix>
+        Protect against infinite loops in the HTTP NIO connector if sendfile is
+        configured to send more data than is available in the file. (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Cluster">



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