reactos/base/applications/cmdutils/fsutil/volume.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS FS utility tool
* FILE: base/applications/cmdutils/volume.c
* PURPOSE: FSutil volumes management
* PROGRAMMERS: Pierre Schweitzer <pierre@reactos.org>
*/
#include "fsutil.h"
/* Add handlers here for subcommands */
static HandlerProc DismountMain;
static HandlerProc DiskFreeMain;
static HandlerItem HandlersList[] =
{
/* Proc, name, help */
{ DismountMain, _T("dismount"), _T("Dismounts a volume") },
{ DiskFreeMain, _T("diskfree"), _T("Prints free space on a volume") },
};
static int
LockOrUnlockVolume(HANDLE Volume, BOOLEAN Lock)
{
DWORD Operation;
ULONG BytesRead;
Operation = (Lock ? FSCTL_LOCK_VOLUME : FSCTL_UNLOCK_VOLUME);
if (DeviceIoControl(Volume, Operation, NULL, 0, NULL, 0,
&BytesRead, NULL) == FALSE)
{
PrintErrorMessage(GetLastError());
return 1;
}
return 0;
}
static int
DismountMain(int argc, const TCHAR *argv[])
{
HANDLE Volume;
ULONG BytesRead;
/* We need a volume (letter or GUID) */
if (argc < 2)
{
_ftprintf(stderr, _T("Usage: fsutil volume dismount <volume>\n"));
_ftprintf(stderr, _T("\tFor example: fsutil volume dismount d:\n"));
return 1;
}
/* Get a handle for the volume */
Volume = OpenVolume(argv[1], FALSE, FALSE);
if (Volume == INVALID_HANDLE_VALUE)
{
return 1;
}
/* Attempt to lock the volume */
if (LockOrUnlockVolume(Volume, TRUE))
{
CloseHandle(Volume);
return 1;
}
/* Issue the dismount command */
if (DeviceIoControl(Volume, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL,
0, &BytesRead, NULL) == FALSE)
{
PrintErrorMessage(GetLastError());
LockOrUnlockVolume(Volume, FALSE);
CloseHandle(Volume);
return 1;
}
/* Unlock and quit */
LockOrUnlockVolume(Volume, FALSE);
CloseHandle(Volume);
_ftprintf(stdout, _T("The %s volume has been dismounted\n"), argv[1]);
return 0;
}
static int
DiskFreeMain(int argc, const TCHAR *argv[])
{
ULARGE_INTEGER FreeAvail, TotalNumber, TotalNumberFree;
/* We need a path */
if (argc < 2)
{
_ftprintf(stderr, _T("Usage: fsutil volume diskfree <volume path>\n"));
_ftprintf(stderr, _T("\tFor example: fsutil volume diskfree c:\n"));
return 1;
}
if (!GetDiskFreeSpaceEx(argv[1], &FreeAvail, &TotalNumber, &TotalNumberFree))
{
PrintErrorMessage(GetLastError());
return 1;
}
_ftprintf(stdout, _T("Total free bytes\t\t: %I64i\n"), TotalNumberFree.QuadPart);
_ftprintf(stdout, _T("Total bytes\t\t\t: %I64i\n"), TotalNumber.QuadPart);
_ftprintf(stdout, _T("Total free available bytes\t: %I64i\n"), FreeAvail.QuadPart);
return 0;
}
static void
PrintUsage(const TCHAR * Command)
{
PrintDefaultUsage(_T(" VOLUME "), Command, (HandlerItem *)&HandlersList,
(sizeof(HandlersList) / sizeof(HandlersList[0])));
}
int
VolumeMain(int argc, const TCHAR *argv[])
{
return FindHandler(argc, argv, (HandlerItem *)&HandlersList,
(sizeof(HandlersList) / sizeof(HandlersList[0])),
PrintUsage);
}