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+// Copyright (C) 2011-2015 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include <config.h>
+
+#include <string>
+#include <sstream>
+
+#include <util/buffer.h>
+
+#include <dns/messagerenderer.h>
+#include <dns/name.h>
+#include <dns/rdata.h>
+#include <dns/rdataclass.h>
+#include <dns/rdata/generic/detail/lexer_util.h>
+
+using namespace std;
+using namespace isc::dns;
+using namespace isc::util;
+using isc::dns::rdata::generic::detail::createNameFromLexer;
+
+// BEGIN_ISC_NAMESPACE
+// BEGIN_RDATA_NAMESPACE
+
+/// \brief Constructor from string.
+///
+/// \c minfo_str must be formatted as follows:
+/// \code <rmailbox name> <emailbox name>
+/// \endcode
+/// where both fields must represent a valid domain name.
+///
+/// An example of valid string is:
+/// \code "rmail.example.com. email.example.com." \endcode
+///
+/// \throw InvalidRdataText The number of RDATA fields (must be 2) is
+/// incorrect.
+/// \throw std::bad_alloc Memory allocation for names fails.
+/// \throw Other The constructor of the \c Name class will throw if the
+/// names in the string is invalid.
+MINFO::MINFO(const std::string& minfo_str) :
+ // We cannot construct both names in the initialization list due to the
+ // necessary text processing, so we have to initialize them with a dummy
+ // name and replace them later.
+ rmailbox_(Name::ROOT_NAME()), emailbox_(Name::ROOT_NAME())
+{
+ try {
+ std::istringstream ss(minfo_str);
+ MasterLexer lexer;
+ lexer.pushSource(ss);
+
+ rmailbox_ = createNameFromLexer(lexer, NULL);
+ emailbox_ = createNameFromLexer(lexer, NULL);
+
+ if (lexer.getNextToken().getType() != MasterToken::END_OF_FILE) {
+ isc_throw(InvalidRdataText, "extra input text for MINFO: "
+ << minfo_str);
+ }
+ } catch (const MasterLexer::LexerError& ex) {
+ isc_throw(InvalidRdataText, "Failed to construct MINFO from '" <<
+ minfo_str << "': " << ex.what());
+ }
+}
+
+/// \brief Constructor with a context of MasterLexer.
+///
+/// The \c lexer should point to the beginning of valid textual representation
+/// of an MINFO RDATA. The RMAILBOX and EMAILBOX fields can be non-absolute
+/// if \c origin is non-NULL, in which case \c origin is used to make them
+/// absolute.
+///
+/// \throw MasterLexer::LexerError General parsing error such as missing field.
+/// \throw Other Exceptions from the Name and constructors if construction of
+/// textual fields as these objects fail.
+///
+/// \param lexer A \c MasterLexer object parsing a master file for the
+/// RDATA to be created
+/// \param origin If non NULL, specifies the origin of SERVER when it
+/// is non-absolute.
+MINFO::MINFO(MasterLexer& lexer, const Name* origin,
+ MasterLoader::Options, MasterLoaderCallbacks&) :
+ rmailbox_(createNameFromLexer(lexer, origin)),
+ emailbox_(createNameFromLexer(lexer, origin))
+{
+}
+
+/// \brief Constructor from wire-format data.
+///
+/// This constructor doesn't check the validity of the second parameter (rdata
+/// length) for parsing.
+/// If necessary, the caller will check consistency.
+///
+/// \throw std::bad_alloc Memory allocation for names fails.
+/// \throw Other The constructor of the \c Name class will throw if the
+/// names in the wire is invalid.
+MINFO::MINFO(InputBuffer& buffer, size_t) :
+ rmailbox_(buffer), emailbox_(buffer)
+{}
+
+/// \brief Copy constructor.
+///
+/// \throw std::bad_alloc Memory allocation fails in copying internal
+/// member variables (this should be very rare).
+MINFO::MINFO(const MINFO& other) :
+ Rdata(), rmailbox_(other.rmailbox_), emailbox_(other.emailbox_)
+{}
+
+/// \brief Convert the \c MINFO to a string.
+///
+/// The output of this method is formatted as described in the "from string"
+/// constructor (\c MINFO(const std::string&))).
+///
+/// \throw std::bad_alloc Internal resource allocation fails.
+///
+/// \return A \c string object that represents the \c MINFO object.
+std::string
+MINFO::toText() const {
+ return (rmailbox_.toText() + " " + emailbox_.toText());
+}
+
+/// \brief Render the \c MINFO in the wire format without name compression.
+///
+/// \throw std::bad_alloc Internal resource allocation fails.
+///
+/// \param buffer An output buffer to store the wire data.
+void
+MINFO::toWire(OutputBuffer& buffer) const {
+ rmailbox_.toWire(buffer);
+ emailbox_.toWire(buffer);
+}
+
+MINFO&
+MINFO::operator=(const MINFO& source) {
+ rmailbox_ = source.rmailbox_;
+ emailbox_ = source.emailbox_;
+
+ return (*this);
+}
+
+/// \brief Render the \c MINFO in the wire format with taking into account
+/// compression.
+///
+/// As specified in RFC3597, TYPE MINFO is "well-known", the rmailbox and
+/// emailbox fields (domain names) will be compressed.
+///
+/// \throw std::bad_alloc Internal resource allocation fails.
+///
+/// \param renderer DNS message rendering context that encapsulates the
+/// output buffer and name compression information.
+void
+MINFO::toWire(AbstractMessageRenderer& renderer) const {
+ renderer.writeName(rmailbox_);
+ renderer.writeName(emailbox_);
+}
+
+/// \brief Compare two instances of \c MINFO RDATA.
+///
+/// See documentation in \c Rdata.
+int
+MINFO::compare(const Rdata& other) const {
+ const MINFO& other_minfo = dynamic_cast<const MINFO&>(other);
+
+ const int cmp = compareNames(rmailbox_, other_minfo.rmailbox_);
+ if (cmp != 0) {
+ return (cmp);
+ }
+ return (compareNames(emailbox_, other_minfo.emailbox_));
+}
+
+// END_RDATA_NAMESPACE
+// END_ISC_NAMESPACE