blob: e4baf54f2dc39abc53ca49b13a0232e8699a94ae [file] [log] [blame]
Alexander Afanasyev8b379052011-08-21 16:58:20 -07001/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
2/*
3 * Copyright (c) 2011 University of California, Los Angeles
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation;
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
19 */
20
21#include "ccnb-parser-attr.h"
Alexander Afanasyeve709f3d2011-08-21 17:55:45 -070022#include "ns3/ccnb-parser-common.h"
Alexander Afanasyev8b379052011-08-21 16:58:20 -070023
24namespace ns3 {
25namespace CcnbParser {
26
27// length length in octets of UTF-8 encoding of tag name - 1 (minimum tag name length is 1)
28Attr::Attr (Buffer::Iterator &start, uint32_t length)
29{
30 m_attr.reserve (length+2); // extra byte for potential \0 at the end
Alexander Afanasyev85a3bca2011-08-31 16:51:03 -070031 uint32_t i = 0;
32 for (; !start.IsEnd () && i < (length+1); i++)
Alexander Afanasyev8b379052011-08-21 16:58:20 -070033 {
34 m_attr.push_back (start.ReadU8 ());
35 }
Alexander Afanasyev85a3bca2011-08-31 16:51:03 -070036 if (i < (length+1) && start.IsEnd ())
37 throw CcnbDecodingException ();
Alexander Afanasyev8b379052011-08-21 16:58:20 -070038 m_value = DynamicCast<Udata> (Block::ParseBlock (start));
39 if (m_value == 0)
Alexander Afanasyeve709f3d2011-08-21 17:55:45 -070040 throw CcnbDecodingException (); // "ATTR must be followed by UDATA field"
Alexander Afanasyev8b379052011-08-21 16:58:20 -070041}
42
43}
44}