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/*
* The Sleuth Kit
*
* Brian Carrier [carrier <at> sleuthkit [dot] org]
* Copyright (c) 2019-2020 Brian Carrier. All Rights reserved
* Copyright (c) 2018-2019 BlackBag Technologies. All Rights reserved
*
* This software is distributed under the Common Public License 1.0
*/
/** \@file C -> C++ compatability layer */
#pragma once
#include "tsk_pool.hpp"
#include <type_traits>
template <typename T,
typename = std::enable_if_t<std::is_base_of<TSKPool, T>::value>>
class TSKPoolCompat : public T {
protected:
TSK_POOL_INFO _info{};
// disable copying so we don't mess with the C API
TSKPoolCompat(const TSKPoolCompat &) = delete;
TSKPoolCompat &operator=(const TSKPoolCompat &) = delete;
// disable moving so we don't mess with the C API
TSKPoolCompat(TSKPoolCompat &&) noexcept = delete;
TSKPoolCompat &operator=(TSKPoolCompat &&) noexcept = delete;
public:
template <typename... Args>
TSKPoolCompat(TSK_POOL_TYPE_ENUM type, Args &&... args) noexcept(
std::is_nothrow_constructible<T, Args...>::value)
: T(std::forward<Args>(args)...) {
///< \internal the C info structure
_info.tag = TSK_POOL_INFO_TAG;
_info.ctype = type;
_info.block_size = this->block_size();
_info.num_blocks = this->num_blocks();
_info.img_offset = this->first_img_offset();
_info.num_vols = this->num_vols();
_info.vol_list = nullptr;
_info.close = [](const TSK_POOL_INFO *pool) {
delete static_cast<TSKPoolCompat *>(pool->impl);
};
_info.poolstat = [](const TSK_POOL_INFO *pool, FILE *hFile) {
return static_cast<TSKPoolCompat *>(pool->impl)->poolstat(hFile);
};
_info.get_img_info = [](const TSK_POOL_INFO *pool, TSK_DADDR_T pvol_block) {
return static_cast<TSKPoolCompat *>(pool->impl)->getImageInfo(pool, pvol_block);
};
_info.impl = this;
}
inline const TSK_POOL_INFO &pool_info() const noexcept { return _info; }
virtual ~TSKPoolCompat() {
if (_info.vol_list != nullptr) {
for (auto vol = _info.vol_list; vol != nullptr; vol = vol->next) {
delete[] vol->desc;
}
delete[] _info.vol_list;
_info.vol_list = nullptr;
}
}
virtual uint8_t poolstat(FILE *) const noexcept = 0;
virtual TSK_IMG_INFO * getImageInfo(const TSK_POOL_INFO *pool_info, TSK_DADDR_T pvol_block) = 0;
};
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