ccnx: small reorganization and extension

Change-Id: I231e1e7e390d19b8e951b9ca4cf52480e10916bc
diff --git a/ccnx/ccnx-charbuf.cc b/ccnx/ccnx-charbuf.cc
new file mode 100644
index 0000000..0ba328f
--- /dev/null
+++ b/ccnx/ccnx-charbuf.cc
@@ -0,0 +1,71 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "ccnx-charbuf.h"
+
+using namespace std;
+
+namespace Ccnx {
+
+void
+CcnxCharbuf::init(ccn_charbuf *buf)
+{
+  if (buf != NULL)
+  {
+    m_buf = ccn_charbuf_create();
+    ccn_charbuf_reserve(m_buf, buf->length);
+    memcpy(m_buf->buf, buf->buf, buf->length);
+    m_buf->length = buf->length;
+  }
+}
+
+CcnxCharbuf::CcnxCharbuf()
+            : m_buf(NULL)
+{
+  m_buf = ccn_charbuf_create();
+}
+
+CcnxCharbuf::CcnxCharbuf(ccn_charbuf *buf)
+            : m_buf(NULL)
+{
+  init(buf);
+}
+
+CcnxCharbuf::CcnxCharbuf(const CcnxCharbuf &other)
+            : m_buf (NULL)
+{
+  init(other.m_buf);
+}
+
+CcnxCharbuf::CcnxCharbuf(const void *buf, size_t length)
+{
+  m_buf = ccn_charbuf_create ();
+  ccn_charbuf_reserve (m_buf, length);
+  memcpy (m_buf->buf, buf, length);
+  m_buf->length = length;
+}
+
+CcnxCharbuf::~CcnxCharbuf()
+{
+  ccn_charbuf_destroy(&m_buf);
+}
+
+}