reactos/dll/shellext/zipfldr/zippidl.cpp

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/*
* PROJECT: ReactOS Zip Shell Extension
* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
* PURPOSE: zip pidl handling
* COPYRIGHT: Copyright 2017-2019 Mark Jansen (mark.jansen@reactos.org)
* Copyright 2023 Katayama Hirofumi MZ (katayama.hirofumi.mz@gmail.com)
*/
#include "precomp.h"
LPITEMIDLIST _ILCreate(ZipPidlType Type, PCWSTR lpString, unz_file_info64& info)
{
size_t cbData = sizeof(ZipPidlEntry) + wcslen(lpString) * sizeof(WCHAR);
if (cbData > MAXWORD)
return NULL;
ZipPidlEntry* pidl = (ZipPidlEntry*)SHAlloc(cbData + sizeof(WORD));
if (!pidl)
return NULL;
ZeroMemory(pidl, cbData + sizeof(WORD));
pidl->cb = (WORD)cbData;
pidl->MagicType = 'z';
pidl->ZipType = Type;
if (Type != ZIP_PIDL_DIRECTORY)
{
pidl->CompressedSize = info.compressed_size;
pidl->UncompressedSize = info.uncompressed_size;
pidl->DosDate = info.dosDate;
pidl->Password = info.flag & MINIZIP_PASSWORD_FLAG;
}
wcscpy(pidl->Name, lpString);
*(WORD*)((char*)pidl + cbData) = 0; // The end of an ITEMIDLIST
return (LPITEMIDLIST)pidl;
}
const ZipPidlEntry* _ZipFromIL(LPCITEMIDLIST pidl)
{
const ZipPidlEntry* zipPidl = (const ZipPidlEntry*)pidl;
if (zipPidl->MagicType == 'z')
return zipPidl;
return NULL;
}