mirror of
https://github.com/libretro/RetroArch
synced 2025-01-16 16:29:28 +00:00
133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2012 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "iosupport.h"
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#include "undocumented.h"
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#include <stdio.h>
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#define CTLCODE(DeviceType, Function, Method, Access) ( ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) )
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#define FSCTL_DISMOUNT_VOLUME CTLCODE( FILE_DEVICE_FILE_SYSTEM, 0x08, METHOD_BUFFERED, FILE_ANY_ACCESS )
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HRESULT xbox_io_mount(char *szDrive, char *szDevice)
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{
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char szSourceDevice[48];
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char szDestinationDrive[16];
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snprintf(szSourceDevice, sizeof(szSourceDevice), "\\Device\\%s", szDevice);
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snprintf(szDestinationDrive, sizeof(szDestinationDrive), "\\??\\%s", szDrive);
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RARCH_LOG("xbox_io_mount() - source device: %s.\n", szSourceDevice);
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RARCH_LOG("xbox_io_mount() - destination drive: %s.\n", szDestinationDrive);
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STRING DeviceName =
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{
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strlen(szSourceDevice),
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strlen(szSourceDevice) + 1,
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szSourceDevice
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};
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STRING LinkName =
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{
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strlen(szDestinationDrive),
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strlen(szDestinationDrive) + 1,
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szDestinationDrive
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};
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IoCreateSymbolicLink(&LinkName, &DeviceName);
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return S_OK;
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}
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HRESULT xbox_io_unmount(char *szDrive)
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{
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char szDestinationDrive[16];
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snprintf(szDestinationDrive, sizeof(szDestinationDrive), "\\??\\%s", szDrive);
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STRING LinkName =
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{
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strlen(szDestinationDrive),
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strlen(szDestinationDrive) + 1,
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szDestinationDrive
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};
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IoDeleteSymbolicLink(&LinkName);
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return S_OK;
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}
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HRESULT xbox_io_remount(char *szDrive, char *szDevice)
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{
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char szSourceDevice[48];
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snprintf(szSourceDevice, sizeof(szSourceDevice), "\\Device\\%s", szDevice);
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xbox_io_unmount(szDrive);
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ANSI_STRING filename;
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OBJECT_ATTRIBUTES attributes;
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IO_STATUS_BLOCK status;
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HANDLE hDevice;
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NTSTATUS error;
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DWORD dummy;
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RtlInitAnsiString(&filename, szSourceDevice);
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InitializeObjectAttributes(&attributes, &filename, OBJ_CASE_INSENSITIVE, NULL);
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if (!NT_SUCCESS(error = NtCreateFile(&hDevice, GENERIC_READ |
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SYNCHRONIZE | FILE_READ_ATTRIBUTES, &attributes, &status, NULL, 0,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, FILE_OPEN,
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FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT)))
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{
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return E_FAIL;
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}
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if (!DeviceIoControl(hDevice, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0, &dummy, NULL))
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{
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CloseHandle(hDevice);
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return E_FAIL;
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}
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CloseHandle(hDevice);
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xbox_io_mount(szDrive, szDevice);
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return S_OK;
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}
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HRESULT xbox_io_remap(char *szMapping)
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{
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char szMap[32];
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strlcpy(szMap, szMapping, sizeof(szMap));
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char *pComma = strstr(szMap, ",");
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if (pComma)
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{
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*pComma = 0;
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// map device to drive letter
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xbox_io_unmount(szMap);
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xbox_io_mount(szMap, &pComma[1]);
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return S_OK;
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}
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return E_FAIL;
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}
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HRESULT xbox_io_shutdown(void)
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{
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HalInitiateShutdown();
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return S_OK;
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}
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