reactos/dll/shellext/shellbtrfs/iconoverlay.cpp
Vincent Franchomme 3cfd8ab775 [BTRFS][UBTRFS][SHELLBTRFS] Upgrade to 1.7.8 (#4417)
v1.7.8.1 (2021-06-13):

- Fixed bug preventing new directories from appearing in listings
- Fixed Release version of driver still not working on XP

v1.7.8 (2021-06-09):

- ~~Upgraded zstd to version 1.5.0~~ Not in ReactOS as it introduces deprecated code
- Fixed regression stopping driver from working under XP
- Fixed compilation on clang
- Fixed corruption issue when Linux mount option inode_cache had been used
- Fixed recursion issue involving virtual directory \$Root
2022-05-03 17:30:11 +02:00

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C++

/* Copyright (c) Mark Harmstone 2016-17
*
* This file is part of WinBtrfs.
*
* WinBtrfs is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public Licence as published by
* the Free Software Foundation, either version 3 of the Licence, or
* (at your option) any later version.
*
* WinBtrfs is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public Licence for more details.
*
* You should have received a copy of the GNU Lesser General Public Licence
* along with WinBtrfs. If not, see <http://www.gnu.org/licenses/>. */
#include "shellext.h"
#ifndef __REACTOS__
#include <windows.h>
#include <winternl.h>
#else
#define WIN32_NO_STATUS
#include <windef.h>
#include <winbase.h>
#include <ndk/iofuncs.h>
#endif
#include "iconoverlay.h"
#ifndef __REACTOS__
#include "../btrfsioctl.h"
#else
#include "btrfsioctl.h"
#endif
HRESULT __stdcall BtrfsIconOverlay::QueryInterface(REFIID riid, void **ppObj) {
if (riid == IID_IUnknown || riid == IID_IShellIconOverlayIdentifier) {
*ppObj = static_cast<IShellIconOverlayIdentifier*>(this);
AddRef();
return S_OK;
}
*ppObj = nullptr;
return E_NOINTERFACE;
}
HRESULT __stdcall BtrfsIconOverlay::GetOverlayInfo(PWSTR pwszIconFile, int cchMax, int* pIndex, DWORD* pdwFlags) noexcept {
if (GetModuleFileNameW(module, pwszIconFile, cchMax) == 0)
return E_FAIL;
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
return E_FAIL;
if (!pIndex)
return E_INVALIDARG;
if (!pdwFlags)
return E_INVALIDARG;
*pIndex = 0;
*pdwFlags = ISIOI_ICONFILE | ISIOI_ICONINDEX;
return S_OK;
}
HRESULT __stdcall BtrfsIconOverlay::GetPriority(int *pPriority) noexcept {
if (!pPriority)
return E_INVALIDARG;
*pPriority = 0;
return S_OK;
}
HRESULT __stdcall BtrfsIconOverlay::IsMemberOf(PCWSTR pwszPath, DWORD dwAttrib) noexcept {
win_handle h;
NTSTATUS Status;
IO_STATUS_BLOCK iosb;
btrfs_get_file_ids bgfi;
h = CreateFileW(pwszPath, 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, nullptr);
if (h == INVALID_HANDLE_VALUE)
return S_FALSE;
Status = NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_GET_FILE_IDS, nullptr, 0, &bgfi, sizeof(btrfs_get_file_ids));
if (!NT_SUCCESS(Status))
return S_FALSE;
return (bgfi.inode == 0x100 && !bgfi.top) ? S_OK : S_FALSE;
}