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https://github.com/mfontanini/libtins
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fa85aa3f8b
* Remove option size memers on IP/TCP and instead calculate these when they're needed * Reorder members on IP/TCP so as to remove/decrease padding * Move most memory helpers impl into header file so they can be inlined * Make PDUOption's move ctor/assignment operator noexcept
86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
/*
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* Copyright (c) 2017, Matias Fontanini
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "memory_helpers.h"
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#include "ip_address.h"
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#include "ipv6_address.h"
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#include "hw_address.h"
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using std::vector;
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namespace Tins {
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namespace Memory {
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// InputMemoryStream
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void InputMemoryStream::read(vector<uint8_t>& value, size_t count) {
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if (!can_read(count)) {
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throw malformed_packet();
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}
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value.assign(pointer(), pointer() + count);
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skip(count);
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}
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void InputMemoryStream::read(HWAddress<6>& address) {
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if (!can_read(address.size())) {
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throw malformed_packet();
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}
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address = pointer();
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skip(address.size());
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}
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void InputMemoryStream::read(IPv4Address& address) {
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address = IPv4Address(read<uint32_t>());
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}
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void InputMemoryStream::read(IPv6Address& address) {
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if (!can_read(IPv6Address::address_size)) {
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throw malformed_packet();
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}
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address = pointer();
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skip(IPv6Address::address_size);
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}
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// OutputMemoryStream
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void OutputMemoryStream::write(const HWAddress<6>& address) {
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write(address.begin(), address.end());
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}
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void OutputMemoryStream::write(const IPv4Address& address) {
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write(static_cast<uint32_t>(address));
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}
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void OutputMemoryStream::write(const IPv6Address& address) {
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write(address.begin(), address.end());
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}
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} // Memory
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} // Tins
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