43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#include <windows.h>
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#include <winioctl.h>
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#include <ntddsnap.h>
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#include <stdio.h>
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void __cdecl
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main(
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int argc,
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char** argv
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)
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{
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WCHAR driveName[10];
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HANDLE handle;
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BOOL b;
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DWORD bytes;
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if (argc != 2) {
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printf("usage: %s drive:\n", argv[0]);
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return;
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}
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swprintf(driveName, L"\\\\?\\%c:", toupper(argv[1][0]));
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handle = CreateFile(driveName, GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
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INVALID_HANDLE_VALUE);
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if (handle == INVALID_HANDLE_VALUE) {
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printf("Could not open the given volume %d\n", GetLastError());
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return;
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}
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b = DeviceIoControl(handle, IOCTL_VOLSNAP_CLEAR_DIFF_AREA,
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NULL, 0, NULL, 0, &bytes, NULL);
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if (!b) {
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printf("Clear diff area failed with %d\n", GetLastError());
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return;
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}
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printf("Diff Area Cleared.\n");
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}
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