From 03590d3c915f0821852e45f981b5c65d64c0c7c3 Mon Sep 17 00:00:00 2001
From: Ming-Hung Tsai <mingnus@gmail.com>
Date: Fri, 27 Nov 2015 23:38:27 +0800
Subject: [PATCH] Fix bug in superblock UUID string copy

---
 thin-provisioning/restore_emitter.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/thin-provisioning/restore_emitter.cc b/thin-provisioning/restore_emitter.cc
index 5fae879..fd83f56 100644
--- a/thin-provisioning/restore_emitter.cc
+++ b/thin-provisioning/restore_emitter.cc
@@ -50,7 +50,8 @@ namespace {
 			in_superblock_ = true;
 			nr_data_blocks_ = nr_data_blocks;
 			superblock &sb = md_->sb_;
-			memcpy(&sb.uuid_, &uuid, sizeof(sb.uuid_));
+			memset(&sb.uuid_, 0, sizeof(sb.uuid_));
+			memcpy(&sb.uuid_, uuid.c_str(), std::min(sizeof(sb.uuid_), uuid.length()));
 			sb.time_ = time;
 			sb.trans_id_ = trans_id;
 			sb.data_block_size_ = data_block_size;