From 57f6dbb3032b934a39c15cd1980b345f477ce1e6 Mon Sep 17 00:00:00 2001
From: Robert Morell <rmorell@nvidia.com>
Date: Thu, 9 May 2013 13:09:02 -0700
Subject: [PATCH 03/35] os: Reset input buffer's 'ignoreBytes' field

If a client sends a request larger than maxBigRequestSize, the server is
supposed to ignore it.

Before commit cf88363d, the server would simply disconnect the client.  After
that commit, it attempts to gracefully ignore the request by remembering how
long the client specified the request to be, and ignoring that many bytes.
However, if a client sends a BigReq header with a large size and disconnects
before actually sending the rest of the specified request, the server will
reuse the ConnectionInput buffer without resetting the ignoreBytes field.  This
makes the server ignore new X clients' requests.

This fixes that behavior by resetting the ignoreBytes field when putting the
ConnectionInput buffer back on the FreeInputs list.

Signed-off-by: Robert Morell <rmorell@nvidia.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 67c66606c760c263d7a4c2d1bba43ed6225a4e7c)
---
 os/io.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/os/io.c b/os/io.c
index 2f091c4..0d980ab 100644
--- a/os/io.c
+++ b/os/io.c
@@ -1063,6 +1063,7 @@ FreeOsBuffers(OsCommPtr oc)
             oci->bufptr = oci->buffer;
             oci->bufcnt = 0;
             oci->lenLastReq = 0;
+            oci->ignoreBytes = 0;
         }
     }
     if ((oco = oc->output)) {
-- 
1.8.2.1