dll/shellext/zipfldr/zippidl.cpp

   1 /*
   2  * PROJECT:     ReactOS Zip Shell Extension
   3  * LICENSE:     GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
   4  * PURPOSE:     zip pidl handling
   5  * COPYRIGHT:   Copyright 2017 Mark Jansen (mark.jansen@reactos.org)
   6  */
   7
   8 #include "precomp.h"
   9
  10 LPITEMIDLIST _ILCreate(ZipPidlType Type, LPCSTR lpString, unz_file_info64& info)
  11 {
  12     int cbData = sizeof(ZipPidlEntry) + strlen(lpString);
  13     ZipPidlEntry* pidl = (ZipPidlEntry*)SHAlloc(cbData + sizeof(WORD));
  14     if (!pidl)
  15         return NULL;
  16
  17     ZeroMemory(pidl, cbData + sizeof(WORD));
  18
  19     pidl->cb = cbData;
  20     pidl->MagicType = 'z';
  21     pidl->ZipType = Type;
  22
  23     if (Type != ZIP_PIDL_DIRECTORY)
  24     {
  25         pidl->CompressedSize = info.compressed_size;
  26         pidl->UncompressedSize = info.uncompressed_size;
  27         pidl->DosDate = info.dosDate;
  28         pidl->Password = info.flag & 1;
  29     }
  30
  31     strcpy(pidl->Name, lpString);
  32     *(WORD*)((char*)pidl + cbData) = 0;
  33
  34     return (LPITEMIDLIST)pidl;
  35 }
  36
  37
  38 const ZipPidlEntry* _ZipFromIL(LPCITEMIDLIST pidl)
  39 {
  40     const ZipPidlEntry* zipPidl = (const ZipPidlEntry*)pidl;
  41     if (zipPidl->MagicType == 'z')
  42         return zipPidl;
  43     return NULL;
  44 }