mirror of
https://github.com/reactos/reactos.git
synced 2026-06-01 17:00:51 +08:00
446b17f531
JIRA issue: CORE-17311 - Minor refactoring. - Use PostMessageW for WM_SETTINGCHANGE and WM_FONTCHANGE notification instead of SendMessageTimeoutW. - Delete IDS_COL_ATTR_LETTERS resource string.
108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/*
|
|
* PROJECT: ReactOS Font Shell Extension
|
|
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
|
|
* PURPOSE: pidl handling
|
|
* COPYRIGHT: Copyright 2019,2020 Mark Jansen <mark.jansen@reactos.org>
|
|
* Copyright 2026 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
|
|
*/
|
|
|
|
#include "precomp.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(fontext);
|
|
|
|
#define FONTPIDL_MAGIC 0x7066 // 'fp'
|
|
#define ALIGN_DWORD(size) (((size) + 3) & ~3)
|
|
|
|
PITEMID_CHILD _ILCreate(LPCWSTR lpName, LPCWSTR lpFileName)
|
|
{
|
|
ATLASSERT(lpName);
|
|
ATLASSERT(lpFileName);
|
|
|
|
if (!lpName[0] || !lpFileName[0])
|
|
{
|
|
ERR("Invalid parameters: lpName '%S', lpFileName '%S'\n", lpName, lpFileName);
|
|
return NULL;
|
|
}
|
|
|
|
HRESULT hr;
|
|
size_t cbName, cbFileName;
|
|
hr = StringCbLengthW(lpName, min(MAXWORD - 1, STRSAFE_MAX_CCH) * sizeof(WCHAR), &cbName);
|
|
if (FAILED_UNEXPECTEDLY(hr))
|
|
return NULL;
|
|
hr = StringCbLengthW(lpFileName, min(MAXWORD - 1, STRSAFE_MAX_CCH) * sizeof(WCHAR), &cbFileName);
|
|
if (FAILED_UNEXPECTEDLY(hr))
|
|
return NULL;
|
|
cbName += sizeof(UNICODE_NULL);
|
|
cbFileName += sizeof(UNICODE_NULL);
|
|
|
|
size_t ibName = ALIGN_DWORD(sizeof(FontPidlEntry));
|
|
size_t ibFileName = ALIGN_DWORD(ibName + cbName);
|
|
size_t cbData = ibFileName + cbFileName;
|
|
if (cbData > MAXWORD - sizeof(WORD))
|
|
{
|
|
ATLASSERT(FALSE);
|
|
return NULL;
|
|
}
|
|
|
|
FontPidlEntry* pidl = (FontPidlEntry*)CoTaskMemAlloc(cbData + sizeof(WORD));
|
|
if (!pidl)
|
|
{
|
|
ERR("Out of memory\n");
|
|
return NULL;
|
|
}
|
|
|
|
ZeroMemory(pidl, cbData + sizeof(WORD));
|
|
pidl->cb = (WORD)cbData;
|
|
pidl->Magic = FONTPIDL_MAGIC;
|
|
pidl->ibName = (WORD)ibName;
|
|
pidl->ibFileName = (WORD)ibFileName;
|
|
|
|
hr = StringCbCopyW(pidl->Name(), cbName, lpName);
|
|
if (FAILED_UNEXPECTEDLY(hr))
|
|
{
|
|
CoTaskMemFree(pidl);
|
|
return NULL;
|
|
}
|
|
hr = StringCbCopyW(pidl->FileName(), cbFileName, lpFileName);
|
|
if (FAILED_UNEXPECTEDLY(hr))
|
|
{
|
|
CoTaskMemFree(pidl);
|
|
return NULL;
|
|
}
|
|
|
|
*(PWORD)((PBYTE)pidl + cbData) = UNICODE_NULL;
|
|
|
|
ATLASSERT(_FontFromIL((PITEMID_CHILD)pidl));
|
|
|
|
return (PITEMID_CHILD)pidl;
|
|
}
|
|
|
|
const FontPidlEntry* _FontFromIL(PCITEMID_CHILD pidl)
|
|
{
|
|
if (!pidl || pidl->mkid.cb < sizeof(FontPidlEntry))
|
|
return NULL;
|
|
|
|
const FontPidlEntry* fontEntry = (const FontPidlEntry*)pidl;
|
|
if (fontEntry->Magic != FONTPIDL_MAGIC)
|
|
return NULL;
|
|
|
|
// The function gets an arbitrary PIDL here. Security is important.
|
|
if (fontEntry->ibName < sizeof(FontPidlEntry) || fontEntry->ibFileName < sizeof(FontPidlEntry) ||
|
|
fontEntry->ibName >= fontEntry->cb || fontEntry->ibFileName >= fontEntry->cb ||
|
|
fontEntry->ibName % sizeof(WCHAR) != 0 || fontEntry->ibFileName % sizeof(WCHAR) != 0)
|
|
{
|
|
ERR("Invalid fontEntry %p (ibName %d, ibFileName %d, cb %d)\n", fontEntry,
|
|
fontEntry->ibName, fontEntry->ibFileName, fontEntry->cb);
|
|
return NULL;
|
|
}
|
|
|
|
size_t cbName, cbNameMax = fontEntry->cb - fontEntry->ibName;
|
|
if (FAILED_UNEXPECTEDLY(StringCbLengthW(fontEntry->Name(), cbNameMax, &cbName)))
|
|
return NULL;
|
|
size_t cbFileName, cbFileNameMax = fontEntry->cb - fontEntry->ibFileName;
|
|
if (FAILED_UNEXPECTEDLY(StringCbLengthW(fontEntry->FileName(), cbFileNameMax, &cbFileName)))
|
|
return NULL;
|
|
|
|
return fontEntry;
|
|
}
|