From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Subject: [PATCH 4/7] tools/blktap2: fix possible '\0' truncation
Date: Thu,  5 Apr 2018 03:50:52 +0200
Message-ID: <f40701572b6dba59bc80f96b2df59d81a3bd7cc8.1522893038.git-series.marmarek@invisiblethingslab.com>
References: <cover.c71341b28191a3808896e82914eb11c1472687b2.1522893038.git-series.marmarek@invisiblethingslab.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xenproject.org>
In-Reply-To: <cover.c71341b28191a3808896e82914eb11c1472687b2.1522893038.git-series.marmarek@invisiblethingslab.com>
In-Reply-To: <cover.c71341b28191a3808896e82914eb11c1472687b2.1522893038.git-series.marmarek@invisiblethingslab.com>
References: <cover.c71341b28191a3808896e82914eb11c1472687b2.1522893038.git-series.marmarek@invisiblethingslab.com>
List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xenproject.org>
List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help>
List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xenproject.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org>
To: xen-devel@lists.xen.org
Cc: Wei Liu <wei.liu2@citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?= <marmarek@invisiblethingslab.com>
List-Id: xen-devel@lists.xenproject.org
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