114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
#include "dfeject.h"
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#include <stdio.h>
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#include <winioctl.h>
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#include "drvfull.h"
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#include "dfioctl.h"
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#include "dferr.h"
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#include "dfhlprs.h"
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HRESULT _IOCTLEject(DWORD dwFlags[], LPTSTR pszArg, DWORD cchIndent)
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{
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HRESULT hres = S_OK;
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HANDLE hDevice;
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DWORD dwDesiredAccess;
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_StartClock();
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switch(GetDriveType(pszArg + 4))
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{
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case DRIVE_REMOVABLE:
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dwDesiredAccess = GENERIC_READ | GENERIC_WRITE;
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break;
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case DRIVE_CDROM:
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dwDesiredAccess = GENERIC_READ;
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break;
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default:
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hres = E_INVALIDARG;
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}
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if (SUCCEEDED(hres))
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{
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DWORD dwDummy;
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BOOL b;
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hDevice = _GetDeviceHandle(pszArg, dwDesiredAccess);
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if (INVALID_HANDLE_VALUE != hDevice)
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{
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// Lock the volume
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b = DeviceIoControl(hDevice,
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FSCTL_LOCK_VOLUME,
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NULL, 0,
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NULL, 0,
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&dwDummy,
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NULL);
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if (b)
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{
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// Dismount the volume
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b = DeviceIoControl(hDevice,
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FSCTL_DISMOUNT_VOLUME,
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NULL, 0,
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NULL, 0,
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&dwDummy,
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NULL);
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if (b)
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{
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b = DeviceIoControl(hDevice,
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IOCTL_STORAGE_EJECT_MEDIA, // dwIoControlCode operation to perform
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NULL, // lpInBuffer; must be NULL
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0, // nInBufferSize; must be zero
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NULL, // pointer to output buffer
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0, // size of output buffer
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&dwDummy, // receives number of bytes returned
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NULL);
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_StopClock();
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_PrintIndent(cchIndent);
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if (b)
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{
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wprintf(TEXT("Device ejected\n"));
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hres = S_OK;
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}
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else
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{
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wprintf(TEXT("Cannot lock device\n"));
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hres = E_FAIL;
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}
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}
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else
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{
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_PrintIndent(cchIndent);
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wprintf(TEXT("Cannot lock device\n"));
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hres = E_FAIL;
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}
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}
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else
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{
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_PrintIndent(cchIndent);
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wprintf(TEXT("Cannot lock device\n"));
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hres = E_FAIL;
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}
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CloseHandle(hDevice);
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}
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else
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{
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_PrintIndent(cchIndent);
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wprintf(TEXT("Cannot open device\n"));
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_PrintGetLastError(cchIndent);
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hres = E_DF_CANNOTOPENDEVICE;
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}
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}
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return hres;
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}
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