513 lines
16 KiB
C++
513 lines
16 KiB
C++
#if !defined(OS_WEB)
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#include <hex/helpers/logger.hpp>
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#include "content/providers/disk_provider.hpp"
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#include <hex/api/localization.hpp>
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#include <hex/helpers/fmt.hpp>
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#include <hex/helpers/utils.hpp>
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#include <hex/ui/imgui_imhex_extensions.h>
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#include <wolv/utils/string.hpp>
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#include <bitset>
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#include <filesystem>
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#include <imgui.h>
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#if defined(OS_WINDOWS)
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#include <winioctl.h>
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#include <setupapi.h>
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#include <cfgmgr32.h>
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#elif defined(OS_LINUX)
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#include <fcntl.h>
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#include <unistd.h>
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#include <linux/fs.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#elif defined(OS_MACOS)
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/disk.h>
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#endif
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#if defined(OS_LINUX)
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#define lseek lseek64
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#endif
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namespace hex::plugin::builtin {
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DiskProvider::DiskProvider() : Provider() {
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}
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bool DiskProvider::isAvailable() const {
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#if defined(OS_WINDOWS)
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return this->m_diskHandle != INVALID_HANDLE_VALUE;
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#else
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return this->m_diskHandle != -1;
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#endif
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}
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bool DiskProvider::isReadable() const {
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return this->m_readable;
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}
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bool DiskProvider::isWritable() const {
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return this->m_writable;
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}
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bool DiskProvider::isResizable() const {
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return false;
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}
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bool DiskProvider::isSavable() const {
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return false;
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}
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void DiskProvider::setPath(const std::fs::path &path) {
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this->m_path = path;
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}
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#if defined (OS_LINUX)
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#ifdef BLKSSZGET
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int blkdev_get_sector_size(int fd, int *sector_size) {
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if (ioctl(fd, BLKSSZGET, sector_size) < 0)
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return -1;
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return 0;
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}
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#else
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int blkdev_get_sector_size(int fd, int *sector_size) {
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(void)fd;
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*sector_size = DEFAULT_SECTOR_SIZE;
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return 0;
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}
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#endif
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#ifdef BLKGETSIZE64
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int blkdev_get_size(int fd, u64 *bytes) {
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if (ioctl(fd, BLKGETSIZE64, bytes) < 0)
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return -1;
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return 0;
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}
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#else
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int blkdev_get_size(int fd, u64 *bytes) {
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struct stat st;
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if (fstat(fd, &st) < 0)
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return -1;
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if (st.st_size == 0) {
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// Try BLKGETSIZE
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unsigned long long bytes64;
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if (ioctl(fd, BLKGETSIZE, &bytes64) >= 0) {
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*bytes = bytes64;
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return 0;
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}
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}
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*bytes = st.st_size;
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return 0;
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}
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#endif
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#elif defined(OS_MACOS)
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int blkdev_get_sector_size(int fd, int *sector_size) {
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if (ioctl(fd, DKIOCGETBLOCKSIZE, sector_size) >= 0)
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return 0;
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return -1;
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}
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int blkdev_get_size(int fd, u64 *bytes) {
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int sectorSize = 0;
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if (blkdev_get_sector_size(fd, §orSize) < 0)
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return -1;
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if (ioctl(fd, DKIOCGETBLOCKCOUNT, bytes) < 0)
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return -1;
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*bytes *= sectorSize;
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return 0;
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}
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#endif
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bool DiskProvider::open() {
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this->m_readable = true;
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this->m_writable = true;
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#if defined(OS_WINDOWS)
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const auto &path = this->m_path.native();
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this->m_diskHandle = reinterpret_cast<HANDLE>(CreateFileW(path.c_str(), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr));
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if (this->m_diskHandle == INVALID_HANDLE_VALUE) {
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this->m_diskHandle = reinterpret_cast<HANDLE>(CreateFileW(path.c_str(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr));
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this->m_writable = false;
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if (this->m_diskHandle == INVALID_HANDLE_VALUE)
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return false;
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}
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{
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DISK_GEOMETRY_EX diskGeometry = { };
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DWORD bytesRead = 0;
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if (DeviceIoControl(
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this->m_diskHandle,
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IOCTL_DISK_GET_DRIVE_GEOMETRY_EX,
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nullptr,
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0,
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&diskGeometry,
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sizeof(DISK_GEOMETRY_EX),
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&bytesRead,
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nullptr)) {
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this->m_diskSize = diskGeometry.DiskSize.QuadPart;
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this->m_sectorSize = diskGeometry.Geometry.BytesPerSector;
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this->m_sectorBuffer.resize(this->m_sectorSize);
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}
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}
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if (this->m_diskHandle == nullptr || this->m_diskHandle == INVALID_HANDLE_VALUE) {
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this->m_readable = false;
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this->m_diskHandle = nullptr;
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CloseHandle(this->m_diskHandle);
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return false;
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}
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#else
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const auto &path = this->m_path.native();
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this->m_diskHandle = ::open(path.c_str(), O_RDWR);
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if (this->m_diskHandle == -1) {
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this->setErrorMessage(hex::format("hex.builtin.provider.disk.error.read_rw"_lang, path, ::strerror(errno)));
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log::warn(this->getErrorMessage());
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this->m_diskHandle = ::open(path.c_str(), O_RDONLY);
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this->m_writable = false;
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}
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if (this->m_diskHandle == -1) {
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this->setErrorMessage(hex::format("hex.builtin.provider.disk.error.read_ro"_lang, path, ::strerror(errno)));
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log::warn(this->getErrorMessage());
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this->m_readable = false;
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return false;
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}
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u64 diskSize = 0;
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blkdev_get_size(this->m_diskHandle, &diskSize);
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this->m_diskSize = diskSize;
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blkdev_get_sector_size(this->m_diskHandle, reinterpret_cast<int *>(&this->m_sectorSize));
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this->m_sectorBuffer.resize(this->m_sectorSize);
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#endif
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return true;
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}
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void DiskProvider::close() {
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#if defined(OS_WINDOWS)
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if (this->m_diskHandle != INVALID_HANDLE_VALUE)
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::CloseHandle(this->m_diskHandle);
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this->m_diskHandle = INVALID_HANDLE_VALUE;
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#else
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if (this->m_diskHandle != -1)
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::close(this->m_diskHandle);
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this->m_diskHandle = -1;
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#endif
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}
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void DiskProvider::readRaw(u64 offset, void *buffer, size_t size) {
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#if defined(OS_WINDOWS)
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DWORD bytesRead = 0;
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u64 startOffset = offset;
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while (size > 0) {
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LARGE_INTEGER seekPosition;
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seekPosition.LowPart = (offset & 0xFFFF'FFFF) - (offset % this->m_sectorSize);
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seekPosition.HighPart = offset >> 32;
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if (this->m_sectorBufferAddress != static_cast<u64>(seekPosition.QuadPart)) {
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::SetFilePointer(this->m_diskHandle, seekPosition.LowPart, &seekPosition.HighPart, FILE_BEGIN);
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::ReadFile(this->m_diskHandle, this->m_sectorBuffer.data(), this->m_sectorBuffer.size(), &bytesRead, nullptr);
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this->m_sectorBufferAddress = seekPosition.QuadPart;
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}
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std::memcpy(reinterpret_cast<u8 *>(buffer) + (offset - startOffset), this->m_sectorBuffer.data() + (offset & (this->m_sectorSize - 1)), std::min(this->m_sectorSize, size));
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size = std::max<ssize_t>(static_cast<ssize_t>(size) - this->m_sectorSize, 0);
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offset += this->m_sectorSize;
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}
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#else
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u64 startOffset = offset;
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while (size > 0) {
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u64 seekPosition = offset - (offset % this->m_sectorSize);
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if (this->m_sectorBufferAddress != seekPosition || this->m_sectorBufferAddress == 0) {
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::lseek(this->m_diskHandle, seekPosition, SEEK_SET);
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if (::read(this->m_diskHandle, this->m_sectorBuffer.data(), this->m_sectorBuffer.size()) == -1)
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break;
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this->m_sectorBufferAddress = seekPosition;
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}
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std::memcpy(reinterpret_cast<u8 *>(buffer) + (offset - startOffset),
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this->m_sectorBuffer.data() + (offset & (this->m_sectorSize - 1)),
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std::min(this->m_sectorSize, size));
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size = std::max<ssize_t>(static_cast<ssize_t>(size) - this->m_sectorSize, 0);
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offset += this->m_sectorSize;
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}
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#endif
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}
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void DiskProvider::writeRaw(u64 offset, const void *buffer, size_t size) {
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#if defined(OS_WINDOWS)
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DWORD bytesWritten = 0;
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u64 startOffset = offset;
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std::vector<u8> modifiedSectorBuffer;
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modifiedSectorBuffer.resize(this->m_sectorSize);
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while (size > 0) {
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u64 sectorBase = offset - (offset % this->m_sectorSize);
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size_t currSize = std::min(size, this->m_sectorSize);
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this->readRaw(sectorBase, modifiedSectorBuffer.data(), modifiedSectorBuffer.size());
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std::memcpy(modifiedSectorBuffer.data() + ((offset - sectorBase) % this->m_sectorSize), reinterpret_cast<const u8 *>(buffer) + (startOffset - offset), currSize);
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LARGE_INTEGER seekPosition;
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seekPosition.LowPart = (offset & 0xFFFF'FFFF) - (offset % this->m_sectorSize);
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seekPosition.HighPart = offset >> 32;
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::SetFilePointer(this->m_diskHandle, seekPosition.LowPart, &seekPosition.HighPart, FILE_BEGIN);
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::WriteFile(this->m_diskHandle, modifiedSectorBuffer.data(), modifiedSectorBuffer.size(), &bytesWritten, nullptr);
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offset += currSize;
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size -= currSize;
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}
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#else
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u64 startOffset = offset;
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std::vector<u8> modifiedSectorBuffer;
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modifiedSectorBuffer.resize(this->m_sectorSize);
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while (size > 0) {
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u64 sectorBase = offset - (offset % this->m_sectorSize);
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size_t currSize = std::min(size, this->m_sectorSize);
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this->readRaw(sectorBase, modifiedSectorBuffer.data(), modifiedSectorBuffer.size());
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std::memcpy(modifiedSectorBuffer.data() + ((offset - sectorBase) % this->m_sectorSize), reinterpret_cast<const u8 *>(buffer) + (startOffset - offset), currSize);
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::lseek(this->m_diskHandle, sectorBase, SEEK_SET);
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if (::write(this->m_diskHandle, modifiedSectorBuffer.data(), modifiedSectorBuffer.size()) < 0)
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break;
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offset += currSize;
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size -= currSize;
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}
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#endif
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}
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size_t DiskProvider::getActualSize() const {
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return this->m_diskSize;
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}
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std::string DiskProvider::getName() const {
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if (this->m_friendlyName.empty())
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return wolv::util::toUTF8String(this->m_path);
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else
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return this->m_friendlyName;
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}
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std::vector<DiskProvider::Description> DiskProvider::getDataDescription() const {
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return {
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{ "hex.builtin.provider.disk.selected_disk"_lang, wolv::util::toUTF8String(this->m_path) },
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{ "hex.builtin.provider.disk.disk_size"_lang, hex::toByteString(this->m_diskSize) },
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{ "hex.builtin.provider.disk.sector_size"_lang, hex::toByteString(this->m_sectorSize) }
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};
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}
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void DiskProvider::reloadDrives() {
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#if defined(OS_WINDOWS)
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this->m_availableDrives.clear();
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std::array<TCHAR, MAX_DEVICE_ID_LEN> deviceInstanceID = {};
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std::array<TCHAR, 1024> description = {};
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const GUID hddClass = GUID_DEVINTERFACE_DISK;
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HDEVINFO hDevInfo = SetupDiGetClassDevs(&hddClass, nullptr, nullptr, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
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if (hDevInfo == INVALID_HANDLE_VALUE)
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return;
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// Add all physical drives
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for (u32 i = 0; ; i++) {
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SP_DEVINFO_DATA deviceInfoData;
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deviceInfoData.cbSize = sizeof(deviceInfoData);
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if (SetupDiEnumDeviceInfo(hDevInfo, i, &deviceInfoData) == FALSE)
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break;
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SP_DEVICE_INTERFACE_DATA interfaceData;
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interfaceData.cbSize = sizeof(SP_INTERFACE_DEVICE_DATA);
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if (!SetupDiEnumInterfaceDevice(hDevInfo, nullptr, &hddClass, i, &interfaceData))
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break;
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if (CM_Get_Device_ID(deviceInfoData.DevInst, deviceInstanceID.data(), MAX_PATH, 0) != CR_SUCCESS)
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continue;
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// Get the required size of the device path
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DWORD requiredSize = 0;
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SetupDiGetDeviceInterfaceDetail(hDevInfo, &interfaceData, nullptr, 0, &requiredSize, nullptr);
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// Query the device path
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std::vector<u8> dataBuffer(requiredSize);
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auto data = reinterpret_cast<SP_INTERFACE_DEVICE_DETAIL_DATA*>(dataBuffer.data());
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data->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);
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if (!SetupDiGetDeviceInterfaceDetail(hDevInfo, &interfaceData, data, requiredSize, nullptr, nullptr))
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continue;
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auto path = data->DevicePath;
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// Query the friendly name of the device
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DWORD size = 0;
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DWORD propertyRegDataType = SPDRP_PHYSICAL_DEVICE_OBJECT_NAME;
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SetupDiGetDeviceRegistryProperty(hDevInfo, &deviceInfoData, SPDRP_FRIENDLYNAME,
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&propertyRegDataType, (BYTE*)description.data(),
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sizeof(description),
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&size);
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auto friendlyName = description.data();
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this->m_availableDrives.insert({ path, friendlyName });
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}
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// Add all logical drives
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std::bitset<32> drives = ::GetLogicalDrives();
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for (char i = 0; i < 26; i++) {
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if (drives[i]) {
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char letter = 'A' + i;
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this->m_availableDrives.insert({ hex::format(R"(\\.\{:c}:)", letter), hex::format(R"({:c}:/)", letter) });
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}
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}
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#endif
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}
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bool DiskProvider::drawLoadInterface() {
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#if defined(OS_WINDOWS)
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if (this->m_availableDrives.empty())
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this->reloadDrives();
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ImGui::PushItemWidth(300_scaled);
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if (ImGui::BeginListBox("hex.builtin.provider.disk.selected_disk"_lang)) {
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ImGui::PushID(1);
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for (const auto &[path, friendlyName] : this->m_availableDrives) {
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if (ImGui::Selectable(friendlyName.c_str(), this->m_path == path)) {
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this->m_path = path;
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this->m_friendlyName = friendlyName;
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}
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ImGui::InfoTooltip(path.c_str());
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}
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ImGui::PopID();
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ImGui::EndListBox();
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}
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ImGui::PopItemWidth();
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ImGui::SameLine();
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if (ImGui::Button("hex.builtin.provider.disk.reload"_lang)) {
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this->reloadDrives();
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}
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#else
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if (ImGui::InputText("hex.builtin.provider.disk.selected_disk"_lang, this->m_pathBuffer.data(), this->m_pathBuffer.size(), ImGuiInputTextFlags_CallbackResize, ImGui::UpdateStringSizeCallback, &this->m_pathBuffer)) {
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this->m_path = this->m_pathBuffer;
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this->m_friendlyName = this->m_pathBuffer;
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}
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#endif
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return !this->m_path.empty();
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}
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nlohmann::json DiskProvider::storeSettings(nlohmann::json settings) const {
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settings["path"] = wolv::util::toUTF8String(this->m_path);
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settings["friendly_name"] = this->m_friendlyName;
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return Provider::storeSettings(settings);
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}
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void DiskProvider::loadSettings(const nlohmann::json &settings) {
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Provider::loadSettings(settings);
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auto path = settings.at("path").get<std::string>();
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if (settings.contains("friendly_name"))
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this->m_friendlyName = settings.at("friendly_name").get<std::string>();
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this->setPath(std::u8string(path.begin(), path.end()));
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this->reloadDrives();
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}
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std::pair<Region, bool> DiskProvider::getRegionValidity(u64 address) const {
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address -= this->getBaseAddress();
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if (address < this->getActualSize())
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return { Region { this->getBaseAddress() + address, this->getActualSize() - address }, true };
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else
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return { Region::Invalid(), false };
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}
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std::variant<std::string, i128> DiskProvider::queryInformation(const std::string &category, const std::string &argument) {
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if (category == "file_path")
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return wolv::util::toUTF8String(this->m_path);
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else if (category == "sector_size")
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return this->m_sectorSize;
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else if (category == "friendly_name")
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return this->m_friendlyName;
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else
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return Provider::queryInformation(category, argument);
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}
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}
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#endif |