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wipeable_string: add hex_to_pod function

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moneromooo-monero 2018-08-27 08:43:56 +00:00
parent 91c7d68b2d
commit 07ec748c82
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4 changed files with 28 additions and 2 deletions
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19
contrib/epee/include/wipeable_string.h
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@ -28,10 +28,11 @@
#pragma once
#include <boost/optional/optional_fwd.hpp>
#include <boost/optional/optional.hpp>
#include <stddef.h>
#include <vector>
#include <string>
#include "memwipe.h"
#include "fnv1.h"
namespace epee
@ -65,6 +66,8 @@ namespace epee
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();
@ -79,6 +82,20 @@ namespace epee
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