Commit 58d7fda0 authored by Dima Volodin's avatar Dima Volodin
Browse files

Merge branch 'trac1138'

parents 5c6391cc 9d3e78f0
......@@ -63,6 +63,8 @@ EXTRA_DIST += rdata/in_1/a_1.cc
EXTRA_DIST += rdata/in_1/a_1.h
EXTRA_DIST += rdata/in_1/aaaa_28.cc
EXTRA_DIST += rdata/in_1/aaaa_28.h
EXTRA_DIST += rdata/in_1/dhcid_49.cc
EXTRA_DIST += rdata/in_1/dhcid_49.h
EXTRA_DIST += rdata/in_1/srv_33.cc
EXTRA_DIST += rdata/in_1/srv_33.h
#EXTRA_DIST += rdata/template.cc
......
// Copyright (C) 2010 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
#include <stdint.h>
#include <string.h>
#include <string>
#include <exceptions/exceptions.h>
#include <util/buffer.h>
#include <util/encode/hex.h>
#include <dns/exceptions.h>
#include <dns/messagerenderer.h>
#include <dns/rdata.h>
#include <dns/rdataclass.h>
using namespace std;
using namespace isc::util;
// BEGIN_ISC_NAMESPACE
// BEGIN_RDATA_NAMESPACE
/// \brief Constructor from string.
///
/// \param dhcid_str A base-64 representation of the DHCID binary data.
/// The data is considered to be opaque, but a sanity check is performed.
///
/// <b>Exceptions</b>
///
/// \c dhcid_str must be a valid BASE-64 string, otherwise an exception
/// of class \c isc::BadValue will be thrown;
/// the binary data should consist of at leat of 3 octets as per RFC4701:
/// < 2 octets > Identifier type code
/// < 1 octet > Digest type code
/// < n octets > Digest (length depends on digest type)
/// If the data is less than 3 octets (i.e. it cannot contain id type code and
/// digest type code), an exception of class \c InvalidRdataLength is thrown.
DHCID::DHCID(const string& dhcid_str) {
istringstream iss(dhcid_str);
stringbuf digestbuf;
iss >> &digestbuf;
isc::util::encode::decodeHex(digestbuf.str(), digest_);
// RFC4701 states DNS software should consider the RDATA section to
// be opaque, but there must be at least three bytes in the data:
// < 2 octets > Identifier type code
// < 1 octet > Digest type code
if (digest_.size() < 3) {
isc_throw(InvalidRdataLength, "DHCID length " << digest_.size() <<
" too short, need at least 3 bytes");
}
}
/// \brief Constructor from wire-format data.
///
/// \param buffer A buffer storing the wire format data.
/// \param rdata_len The length of the RDATA in bytes
///
/// <b>Exceptions</b>
/// \c InvalidRdataLength is thrown if \c rdata_len is than minimum of 3 octets
DHCID::DHCID(InputBuffer& buffer, size_t rdata_len) {
if (rdata_len < 3) {
isc_throw(InvalidRdataLength, "DHCID length " << rdata_len <<
" too short, need at least 3 bytes");
}
digest_.resize(rdata_len);
buffer.readData(&digest_[0], rdata_len);
}
/// \brief The copy constructor.
///
/// This trivial copy constructor never throws an exception.
DHCID::DHCID(const DHCID& other) : Rdata(), digest_(other.digest_)
{}
/// \brief Render the \c DHCID in the wire format.
///
/// \param buffer An output buffer to store the wire data.
void
DHCID::toWire(OutputBuffer& buffer) const {
buffer.writeData(&digest_[0], digest_.size());
}
/// \brief Render the \c DHCID in the wire format into a
/// \c MessageRenderer object.
///
/// \param renderer DNS message rendering context that encapsulates the
/// output buffer in which the \c DHCID is to be stored.
void
DHCID::toWire(AbstractMessageRenderer& renderer) const {
renderer.writeData(&digest_[0], digest_.size());
}
/// \brief Convert the \c DHCID to a string.
///
/// This method returns a \c std::string object representing the \c DHCID.
///
/// \return A string representation of \c DHCID.
string
DHCID::toText() const {
return (isc::util::encode::encodeHex(digest_));
}
/// \brief Compare two instances of \c DHCID RDATA.
///
/// See documentation in \c Rdata.
int
DHCID::compare(const Rdata& other) const {
const DHCID& other_dhcid = dynamic_cast<const DHCID&>(other);
size_t this_len = digest_.size();
size_t other_len = other_dhcid.digest_.size();
size_t cmplen = min(this_len, other_len);
int cmp = memcmp(&digest_[0], &other_dhcid.digest_[0], cmplen);
if (cmp != 0) {
return (cmp);
} else {
return ((this_len == other_len) ? 0 : (this_len < other_len) ? -1 : 1);
}
}
/// \brief Accessor method to get the DHCID digest
///
/// \return A reference to the binary DHCID data
const std::vector<uint8_t>&
DHCID::getDigest() const {
return (digest_);
}
// END_RDATA_NAMESPACE
// END_ISC_NAMESPACE
// Copyright (C) 2010 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
// BEGIN_HEADER_GUARD
#include <string>
#include <vector>
#include <dns/rdata.h>
// BEGIN_ISC_NAMESPACE
// BEGIN_COMMON_DECLARATIONS
// END_COMMON_DECLARATIONS
// BEGIN_RDATA_NAMESPACE
/// \brief \c rdata::DHCID class represents the DHCID RDATA as defined %in
/// RFC4701.
///
/// This class implements the basic interfaces inherited from the abstract
/// \c rdata::Rdata class, and provides trivial accessors specific to the
/// DHCID RDATA.
class DHCID : public Rdata {
public:
// BEGIN_COMMON_MEMBERS
// END_COMMON_MEMBERS
/// \brief Return the digest.
///
/// This method never throws an exception.
const std::vector<uint8_t>& getDigest() const;
private:
/// \brief Private data representation
///
/// Opaque data at least 3 octets long as per RFC4701.
///
std::vector<uint8_t> digest_;
};
// END_RDATA_NAMESPACE
// END_ISC_NAMESPACE
// END_HEADER_GUARD
// Local Variables:
// mode: c++
// End:
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