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Move memory helpers implementation into a source file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| /* | ||
| * Copyright (c) 2017, Matias Fontanini | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are | ||
| * met: | ||
| * | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * * Redistributions in binary form must reproduce the above | ||
| * copyright notice, this list of conditions and the following disclaimer | ||
| * in the documentation and/or other materials provided with the | ||
| * distribution. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| * | ||
| */ | ||
|
|
||
| #include "memory_helpers.h" | ||
| #include "ip_address.h" | ||
| #include "ipv6_address.h" | ||
| #include "hw_address.h" | ||
|
|
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| using std::vector; | ||
|
|
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| namespace Tins { | ||
| namespace Memory { | ||
|
|
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| // InputMemoryStream | ||
|
|
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| InputMemoryStream::InputMemoryStream(const uint8_t* buffer, size_t total_sz) | ||
| : buffer_(buffer), size_(total_sz) { | ||
| } | ||
|
|
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| InputMemoryStream::InputMemoryStream(const vector<uint8_t>& data) | ||
| : buffer_(&data[0]), size_(data.size()) { | ||
| } | ||
|
|
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| void InputMemoryStream::skip(size_t size) { | ||
| if (TINS_UNLIKELY(size > size_)) { | ||
| throw malformed_packet(); | ||
| } | ||
| buffer_ += size; | ||
| size_ -= size; | ||
| } | ||
|
|
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| bool InputMemoryStream::can_read(size_t byte_count) const { | ||
| return TINS_LIKELY(size_ >= byte_count); | ||
| } | ||
|
|
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| void InputMemoryStream::read(vector<uint8_t>& value, size_t count) { | ||
| if (!can_read(count)) { | ||
| throw malformed_packet(); | ||
| } | ||
| value.assign(pointer(), pointer() + count); | ||
| skip(count); | ||
| } | ||
|
|
||
| void InputMemoryStream::read(HWAddress<6>& address) { | ||
| if (!can_read(address.size())) { | ||
| throw malformed_packet(); | ||
| } | ||
| address = pointer(); | ||
| skip(address.size()); | ||
| } | ||
|
|
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| void InputMemoryStream::read(IPv4Address& address) { | ||
| address = IPv4Address(read<uint32_t>()); | ||
| } | ||
|
|
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| void InputMemoryStream::read(IPv6Address& address) { | ||
| if (!can_read(IPv6Address::address_size)) { | ||
| throw malformed_packet(); | ||
| } | ||
| address = pointer(); | ||
| skip(IPv6Address::address_size); | ||
| } | ||
|
|
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| void InputMemoryStream::read(void* output_buffer, size_t output_buffer_size) { | ||
| if (!can_read(output_buffer_size)) { | ||
| throw malformed_packet(); | ||
| } | ||
| read_data(buffer_, (uint8_t*)output_buffer, output_buffer_size); | ||
| skip(output_buffer_size); | ||
| } | ||
|
|
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| const uint8_t* InputMemoryStream::pointer() const { | ||
| return buffer_; | ||
| } | ||
|
|
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| size_t InputMemoryStream::size() const { | ||
| return size_; | ||
| } | ||
|
|
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| void InputMemoryStream::size(size_t new_size) { | ||
| size_ = new_size; | ||
| } | ||
|
|
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| InputMemoryStream::operator bool() const { | ||
| return size_ > 0; | ||
| } | ||
|
|
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| // OutputMemoryStream | ||
|
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| OutputMemoryStream::OutputMemoryStream(uint8_t* buffer, size_t total_sz) | ||
| : buffer_(buffer), size_(total_sz) { | ||
| } | ||
|
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| OutputMemoryStream::OutputMemoryStream(vector<uint8_t>& buffer) | ||
| : buffer_(&buffer[0]), size_(buffer.size()) { | ||
| } | ||
|
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| void OutputMemoryStream::skip(size_t size) { | ||
| if (TINS_UNLIKELY(size > size_)) { | ||
| throw malformed_packet(); | ||
| } | ||
| buffer_ += size; | ||
| size_ -= size; | ||
| } | ||
|
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| void OutputMemoryStream::write(const uint8_t* ptr, size_t length) { | ||
| write(ptr, ptr + length); | ||
| } | ||
|
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| void OutputMemoryStream::write(const HWAddress<6>& address) { | ||
| write(address.begin(), address.end()); | ||
| } | ||
|
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| void OutputMemoryStream::write(const IPv4Address& address) { | ||
| write(static_cast<uint32_t>(address)); | ||
| } | ||
|
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| void OutputMemoryStream::write(const IPv6Address& address) { | ||
| write(address.begin(), address.end()); | ||
| } | ||
|
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| void OutputMemoryStream::fill(size_t size, uint8_t value) { | ||
| if (TINS_UNLIKELY(size_ < size)) { | ||
| throw serialization_error(); | ||
| } | ||
| std::memset(buffer_, value, size); | ||
| skip(size); | ||
| } | ||
|
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| uint8_t* OutputMemoryStream::pointer() { | ||
| return buffer_; | ||
| } | ||
|
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| size_t OutputMemoryStream::size() const { | ||
| return size_; | ||
| } | ||
|
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| } // Memory | ||
| } // Tins |