mirror of
https://github.com/monero-project/monero.git
synced 2024-12-21 04:24:18 -05:00
111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
// Copyright (c) 2017-2023, The Monero Project
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. 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.
|
|
//
|
|
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
|
// used to endorse or promote products derived from this software without specific
|
|
// prior written permission.
|
|
//
|
|
// 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 HOLDER 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.
|
|
|
|
#pragma once
|
|
|
|
#include <boost/optional/optional.hpp>
|
|
#include <stddef.h>
|
|
#include <vector>
|
|
#include <string>
|
|
#include "memwipe.h"
|
|
#include "fnv1.h"
|
|
|
|
namespace epee
|
|
{
|
|
class wipeable_string
|
|
{
|
|
public:
|
|
typedef char value_type;
|
|
|
|
wipeable_string() {}
|
|
wipeable_string(const wipeable_string &other);
|
|
wipeable_string(wipeable_string &&other);
|
|
wipeable_string(const std::string &other);
|
|
wipeable_string(std::string &&other);
|
|
wipeable_string(const char *s);
|
|
wipeable_string(const char *s, size_t len);
|
|
~wipeable_string();
|
|
void wipe();
|
|
void push_back(char c);
|
|
void operator+=(char c);
|
|
void operator+=(const std::string &s);
|
|
void operator+=(const epee::wipeable_string &s);
|
|
void operator+=(const char *s);
|
|
void append(const char *ptr, size_t len);
|
|
char pop_back();
|
|
const char *data() const noexcept { return buffer.data(); }
|
|
char *data() noexcept { return buffer.data(); }
|
|
size_t size() const noexcept { return buffer.size(); }
|
|
size_t length() const noexcept { return buffer.size(); }
|
|
bool empty() const noexcept { return buffer.empty(); }
|
|
void trim();
|
|
void split(std::vector<wipeable_string> &fields) const;
|
|
boost::optional<wipeable_string> parse_hexstr() const;
|
|
template<typename T> inline bool hex_to_pod(T &pod) const;
|
|
template<typename T> inline bool hex_to_pod(tools::scrubbed<T> &pod) const { return hex_to_pod(unwrap(pod)); }
|
|
void resize(size_t sz);
|
|
void reserve(size_t sz);
|
|
void clear();
|
|
bool operator==(const wipeable_string &other) const noexcept { return buffer == other.buffer; }
|
|
bool operator!=(const wipeable_string &other) const noexcept { return buffer != other.buffer; }
|
|
wipeable_string &operator=(wipeable_string &&other);
|
|
wipeable_string &operator=(const wipeable_string &other);
|
|
|
|
private:
|
|
void grow(size_t sz, size_t reserved = 0);
|
|
|
|
private:
|
|
std::vector<char> buffer;
|
|
};
|
|
|
|
template<typename T> inline bool wipeable_string::hex_to_pod(T &pod) const
|
|
{
|
|
static_assert(std::is_pod<T>::value, "expected pod type");
|
|
if (size() != sizeof(T) * 2)
|
|
return false;
|
|
boost::optional<epee::wipeable_string> blob = parse_hexstr();
|
|
if (!blob)
|
|
return false;
|
|
if (blob->size() != sizeof(T))
|
|
return false;
|
|
pod = *(const T*)blob->data();
|
|
return true;
|
|
}
|
|
}
|
|
|
|
namespace std
|
|
{
|
|
template<> struct hash<epee::wipeable_string>
|
|
{
|
|
size_t operator()(const epee::wipeable_string &s) const
|
|
{
|
|
return epee::fnv::FNV1a(s.data(), s.size());
|
|
}
|
|
};
|
|
}
|