From f9123570dbe81fdea4e38e7be9775cf926ed1eb3 Mon Sep 17 00:00:00 2001
From: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Tue, 14 Feb 2017 18:01:17 +0000
Subject: Set padding bytes to 0 in WriteToClient

 commit bed610fcae41ddfe21fa9acde599b17d1d15f5d1
 Author: Alan Coopersmith <alan.coopersmith@oracle.com>
 Date:   Mon Jul 9 19:12:44 2012 -0700

    Set padding bytes to 0 in WriteToClient

    Clear them out when needed instead of leaving whatever values were
    present in previously sent messages.

    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
    Reviewed-by: Keith Packard <keithp@keithp.com>
    Tested-by: Daniel Stone <daniel@fooishbar.org>

 Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
---
 nx-X11/programs/Xserver/os/io.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/nx-X11/programs/Xserver/os/io.c b/nx-X11/programs/Xserver/os/io.c
index 78f450b63..075eb677c 100644
--- a/nx-X11/programs/Xserver/os/io.c
+++ b/nx-X11/programs/Xserver/os/io.c
@@ -1003,7 +1003,11 @@ WriteToClient (ClientPtr who, int count, const void *__buf)
     NewOutputPending = TRUE;
     FD_SET(oc->fd, &OutputPending);
     memmove((char *)oco->buf + oco->count, buf, count);
-    oco->count += count + padBytes;
+    oco->count += count;
+    if (padBytes) {
+	memset(oco->buf + oco->count, '\0', padBytes);
+	oco->count += padBytes;
+    }
     return(count);
 }
 
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