mirror of
https://gitlab.isc.org/isc-projects/kea
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93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
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// Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC")
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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#include <dns/labelsequence.h>
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#include <exceptions/exceptions.h>
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// TODO: REMOVE
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#include <iostream>
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namespace isc {
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namespace dns {
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LabelSequence::LabelSequence(const Name& name) : name_(name),
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first_label_(0) {
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isc::util::OutputBuffer buf(0);
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name.toWire(buf);
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size_t buflen = buf.getLength();
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data_ = new char[buflen];
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memcpy(data_, buf.getData(), buflen);
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data_[buflen-1] = '\0';
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size_t label_count_ = name.getLabelCount();
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last_label_ = label_count_ - 1;
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offsets_ = new size_t[label_count_];
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offsets_[0] = 0;
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for (size_t i = 1; i < label_count_; ++i) {
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offsets_[i] = offsets_[i - 1] + data_[offsets_[i - 1]] + 1;
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}
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}
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LabelSequence::~LabelSequence() {
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delete[] data_;
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delete[] offsets_;
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}
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const char*
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LabelSequence::getData() const {
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return &data_[offsets_[first_label_]];
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}
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const char*
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LabelSequence::getData(size_t *len) const {
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std::cout << "[XX]" << std::endl;
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std::cout << "[XX] at: " << offsets_[first_label_] << std::endl;
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std::cout << "[XX] value: " << name_.at(offsets_[first_label_]) << std::endl;
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std::cout << "[XX] ptr: " << name_.at_p(offsets_[first_label_]) << std::endl;
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*len = offsets_[last_label_] - offsets_[first_label_];
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return name_.at_p(offsets_[first_label_]);
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}
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bool
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LabelSequence::equals(const LabelSequence& other, bool case_sensitive) const {
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if (case_sensitive) {
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return (strcasecmp(getData(), other.getData()) == 0);
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} else {
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return (strcmp(getData(), other.getData()) == 0);
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}
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}
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void
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LabelSequence::split(int i) {
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if (i > 0) {
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if (first_label_ + i > last_label_) {
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isc_throw(Exception, "split(" << i <<") but labelcount: " << getLabelCount());
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} else {
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first_label_ += i;
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}
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} else if (i < 0) {
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if (last_label_ + i < first_label_) {
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isc_throw(Exception, "split(" << i <<") but labelcount: " << getLabelCount());
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} else {
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last_label_ += i;
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data_[offsets_[last_label_]] = '\0';
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}
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}
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}
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} // end namespace dns
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} // end namespace isc
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