The only correct answer is the one by @Grodriguez, and here's a code that he was too lazy to write:
#include <windows.h>
#include <iostream>
#include <bitset>
#include <vector>
using namespace std;
typedef struct _DISK_EXTENT {
DWORD DiskNumber;
LARGE_INTEGER StartingOffset;
LARGE_INTEGER ExtentLength;
} DISK_EXTENT, *PDISK_EXTENT;
typedef struct _VOLUME_DISK_EXTENTS {
DWORD NumberOfDiskExtents;
DISK_EXTENT Extents[ANYSIZE_ARRAY];
} VOLUME_DISK_EXTENTS, *PVOLUME_DISK_EXTENTS;
#define CTL_CODE(DeviceType, Function, Method, Access) \
(((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))
#define IOCTL_VOLUME_BASE ((DWORD)'V')
#define METHOD_BUFFERED 0
#define FILE_ANY_ACCESS 0x00000000
#define IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS CTL_CODE(IOCTL_VOLUME_BASE, 0, METHOD_BUFFERED, FILE_ANY_ACCESS)
int main() {
bitset<32> drives(GetLogicalDrives());
vector<char> goodDrives;
for (char c = 'A'; c <= 'Z'; ++c) {
if (drives[c - 'A']) {
if (GetDriveType((c + string(":\\")).c_str()) == DRIVE_FIXED) {
goodDrives.push_back(c);
}
}
}
for (auto & drive : goodDrives) {
string s = string("\\\\.\\") + drive + ":";
HANDLE h = CreateFileA(
s.c_str(), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_NO_BUFFERING | FILE_FLAG_RANDOM_ACCESS, NULL
);
if (h == INVALID_HANDLE_VALUE) {
cerr << "Drive " << drive << ":\\ cannot be opened";
continue;
}
DWORD bytesReturned;
VOLUME_DISK_EXTENTS vde;
if (!DeviceIoControl(
h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS,
NULL, 0, &vde, sizeof(vde), &bytesReturned, NULL
)) {
cerr << "Drive " << drive << ":\\ cannot be mapped into physical drive";
continue;
}
cout << "Drive " << drive << ":\\ is on the following physical drives: ";
for (int i = 0; i < vde.NumberOfDiskExtents; ++i) {
cout << vde.Extents[i].DiskNumber << ' ';
}
cout << endl;
}
}
I think that installation of Windows Driver Development Kit is quite a lengthy process, so I've included the declarations one needs to use DeviceIoControl for this task.