dissect: import code from ndn-cxx repository
Code is copied from ndn-cxx:commit:6f7cfd02d250721567dbe88cf64f24867ba32262,
with minor changes for changing include paths.
refs #2848
Change-Id: I240346d351123ff1284598d95839a2cfa79254f6
diff --git a/tools/dissect/ndn-dissect.cpp b/tools/dissect/ndn-dissect.cpp
new file mode 100644
index 0000000..c9d8ece
--- /dev/null
+++ b/tools/dissect/ndn-dissect.cpp
@@ -0,0 +1,186 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2014 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ *
+ * @author Alexander Afanasyev <http://lasr.cs.ucla.edu/afanasyev/index.html>
+ */
+
+#include <ndn-cxx/face.hpp>
+#include <ndn-cxx/encoding/block.hpp>
+
+#include <iomanip>
+#include <fstream>
+#include <map>
+
+namespace ndn {
+
+std::map<uint32_t, std::string> TLV_DICT = {
+ {tlv::Interest , "Interest"},
+ {tlv::Data , "Data"},
+ {tlv::Name , "Name"},
+ {tlv::NameComponent , "NameComponent"},
+ {tlv::ImplicitSha256DigestComponent, "ImplicitSha256DigestComponent"},
+ {tlv::Selectors , "Selectors"},
+ {tlv::Nonce , "Nonce"},
+ {tlv::InterestLifetime , "InterestLifetime"},
+ {tlv::MinSuffixComponents , "MinSuffixComponents"},
+ {tlv::MaxSuffixComponents , "MaxSuffixComponents"},
+ {tlv::PublisherPublicKeyLocator , "PublisherPublicKeyLocator"},
+ {tlv::Exclude , "Exclude"},
+ {tlv::ChildSelector , "ChildSelector"},
+ {tlv::MustBeFresh , "MustBeFresh"},
+ {tlv::Any , "Any"},
+ {tlv::MetaInfo , "MetaInfo"},
+ {tlv::Content , "Content"},
+ {tlv::SignatureInfo , "SignatureInfo"},
+ {tlv::SignatureValue , "SignatureValue"},
+ {tlv::ContentType , "ContentType"},
+ {tlv::FreshnessPeriod , "FreshnessPeriod"},
+ {tlv::FinalBlockId , "FinalBlockId"},
+ {tlv::SignatureType , "SignatureType"},
+ {tlv::KeyLocator , "KeyLocator"},
+ {tlv::KeyDigest , "KeyDigest"},
+};
+
+void
+printTypeInfo(uint32_t type)
+{
+ std::cout << type << " (";
+
+ if (TLV_DICT.count(type) != 0) {
+ std::cout << TLV_DICT[type];
+ }
+ else if (type < tlv::AppPrivateBlock1) {
+ std::cout << "RESERVED_1";
+ }
+ else if (tlv::AppPrivateBlock1 <= type && type < 253) {
+ std::cout << "APP_TAG_1";
+ }
+ else if (253 <= type && type < tlv::AppPrivateBlock2) {
+ std::cout << "RESERVED_3";
+ }
+ else {
+ std::cout << "APP_TAG_3";
+ }
+ std::cout << ")";
+}
+
+
+void
+BlockPrinter(const Block& block, const std::string& indent = "")
+{
+ std::cout << indent;
+ printTypeInfo(block.type());
+ std::cout << " (size: " << block.value_size() << ")";
+
+ try {
+ // if (block.type() != tlv::Content && block.type() != tlv::SignatureValue)
+ block.parse();
+ }
+ catch (tlv::Error& e) {
+ // pass (e.g., leaf block reached)
+
+ // @todo: Figure how to deterministically figure out that value is not recursive TLV block
+ }
+
+ if (block.elements().empty())
+ {
+ std::cout << " [[";
+ name::Component(block.value(), block.value_size()).toUri(std::cout);
+ std::cout<< "]]";
+ }
+ std::cout << std::endl;
+
+ for (Block::element_const_iterator i = block.elements_begin();
+ i != block.elements_end();
+ ++i)
+ {
+ BlockPrinter(*i, indent+" ");
+ }
+}
+
+void
+HexPrinter(const Block& block, const std::string& indent = "")
+{
+ std::cout << indent;
+ for (Buffer::const_iterator i = block.begin (); i != block.value_begin(); ++i)
+ {
+ std::cout << "0x";
+ std::cout << std::noshowbase << std::hex << std::setw(2) <<
+ std::setfill('0') << static_cast<int>(*i);
+ std::cout << ", ";
+ }
+ std::cout << "\n";
+
+ if (block.elements_size() == 0 && block.value_size() > 0)
+ {
+ std::cout << indent << " ";
+ for (Buffer::const_iterator i = block.value_begin (); i != block.value_end(); ++i)
+ {
+ std::cout << "0x";
+ std::cout << std::noshowbase << std::hex << std::setw(2) <<
+ std::setfill('0') << static_cast<int>(*i);
+ std::cout << ", ";
+ }
+ std::cout << "\n";
+ }
+ else
+ {
+ for (Block::element_const_iterator i = block.elements_begin();
+ i != block.elements_end();
+ ++i)
+ {
+ HexPrinter(*i, indent+" ");
+ }
+ }
+}
+
+void
+parseBlocksFromStream(std::istream& is)
+{
+ while (is.peek() != std::char_traits<char>::eof()) {
+ try {
+ Block block = Block::fromStream(is);
+ BlockPrinter(block, "");
+ // HexPrinter(block, "");
+ }
+ catch (std::exception& e) {
+ std::cerr << "ERROR: " << e.what() << std::endl;
+ }
+ }
+
+}
+
+} // namespace ndn
+
+int main(int argc, const char *argv[])
+{
+ if (argc == 1 ||
+ (argc == 2 && std::string(argv[1]) == "-"))
+ {
+ ndn::parseBlocksFromStream(std::cin);
+ }
+ else
+ {
+ std::ifstream file(argv[1]);
+ ndn::parseBlocksFromStream(file);
+ }
+
+ return 0;
+}