dll/win32/sfc_os/sfc_os.c

   1 /*
   2  * System File Checker (Windows File Protection)
   3  *
   4  * Copyright 2008 Pierre Schweitzer
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "precomp.h"
  22 #include "debug.h"
  23
  24 HINSTANCE hLibModule;
  25
  26 typedef struct _PROTECTED_FILE_DATA
  27 {
  28     WCHAR FileName[MAX_PATH];
  29     DWORD FileNumber;
  30 } PROTECTED_FILE_DATA, *PPROTECTED_FILE_DATA;
  31
  32
  33 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  34 {
  35     switch (fdwReason)
  36     {
  37         case DLL_PROCESS_ATTACH:
  38         {
  39             DisableThreadLibraryCalls(hinstDLL);
  40             hLibModule = hinstDLL;
  41             break;
  42         }
  43         case DLL_PROCESS_DETACH:
  44         {
  45             break;
  46         }
  47     }
  48
  49     return TRUE;
  50 }
  51
  52
  53 /******************************************************************
  54  *              SfcIsFileProtected     [sfc_os.@]
  55  *
  56  * Check, if the given File is protected by the System
  57  *
  58  * PARAMS
  59  *  RpcHandle    [I] This must be NULL
  60  *  ProtFileName [I] Filename with Path to check
  61  *
  62  * RETURNS
  63  *  Failure: FALSE with GetLastError() != ERROR_FILE_NOT_FOUND
  64  *  Success: TRUE, when the File is Protected
  65  *           FALSE with GetLastError() == ERROR_FILE_NOT_FOUND,
  66  *           when the File is not Protected
  67  *
  68  *
  69  * BUGS
  70  *  We return always the Result for: "File is not Protected"
  71  *
  72  */
  73 BOOL WINAPI SfcIsFileProtected(HANDLE RpcHandle, LPCWSTR ProtFileName)
  74 {
  75     static BOOL reported = FALSE;
  76
  77     if (reported) {
  78         DPRINT("(%p, %S) stub\n", RpcHandle, ProtFileName);
  79     }
  80     else
  81     {
  82         DPRINT1("(%p, %S) stub\n", RpcHandle, ProtFileName);
  83         reported = TRUE;
  84     }
  85
  86     SetLastError(ERROR_FILE_NOT_FOUND);
  87     return FALSE;
  88 }
  89
  90 /******************************************************************
  91  *              SfcIsKeyProtected     [sfc_os.@]
  92  *
  93  * Check, if the given Registry Key is protected by the System
  94  *
  95  * PARAMS
  96  *  hKey          [I] Handle to the root registry key
  97  *  lpSubKey      [I] Name of the subkey to check
  98  *  samDesired    [I] The Registry View to Examine (32 or 64 bit)
  99  *
 100  * RETURNS
 101  *  Failure: FALSE with GetLastError() != ERROR_FILE_NOT_FOUND
 102  *  Success: TRUE, when the Key is Protected
 103  *           FALSE with GetLastError() == ERROR_FILE_NOT_FOUND,
 104  *           when the Key is not Protected
 105  *
 106  */
 107 BOOL WINAPI SfcIsKeyProtected(HKEY hKey, LPCWSTR lpSubKey, REGSAM samDesired)
 108 {
 109     static BOOL reported = FALSE;
 110
 111     if (reported) {
 112         DPRINT("(%p, %S) stub\n", hKey, lpSubKey);
 113     }
 114     else
 115     {
 116         DPRINT1("(%p, %S) stub\n", hKey, lpSubKey);
 117         reported = TRUE;
 118     }
 119
 120     if( !hKey ) {
 121         SetLastError(ERROR_INVALID_HANDLE);
 122         return FALSE;
 123     }
 124
 125     SetLastError(ERROR_FILE_NOT_FOUND);
 126     return FALSE;
 127 }
 128
 129 /******************************************************************
 130  *              SfcGetNextProtectedFile     [sfc_os.@]
 131  */
 132 BOOL WINAPI SfcGetNextProtectedFile(HANDLE RpcHandle, PPROTECTED_FILE_DATA ProtFileData)
 133 {
 134     if (!ProtFileData)
 135     {
 136         SetLastError(ERROR_INVALID_PARAMETER);
 137         return FALSE;
 138     }
 139
 140     UNIMPLEMENTED;
 141     SetLastError(ERROR_NO_MORE_FILES);
 142     return FALSE;
 143 }
 144