src/libcaptive/cm/rtlfunc.c

   1 /* $Id$
   2  * reactos registry handling functions emulation of libcaptive
   3  * Copyright (C) 2002 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "reactos/ddk/kefuncs.h"        /* self */
  23 #include <glib/gmessages.h>
  24 #include "captive/unicode.h"
  25
  26
  27 /**
  28  * RtlQueryRegistryValues:
  29  * @RelativeTo: Basedir type constant of relative @Path; ignored by libcaptive.
  30  * @Path: String path or handle to retrieve; ignored by libcaptive.
  31  * @QueryTable: Table of entries to retrieve; ignored by libcaptive.
  32  * %NULL value is forbidden.
  33  * @Context: Userdata to pass to QueryRoutine() (of @QueryTable); ignored by libcaptive.
  34  * @Environment: Environment variable to use for key expansion; optional; ignored by libcaptive.
  35  *
  36  * Retrieves specified key from the system registry database.
  37  * libcaptive currently always returns %STATUS_OBJECT_NAME_NOT_FOUND
  38  * except #ULONG value 1 for the key "\captive\filesystem\Parameters\WritingSupport"
  39  * (for ext2fsd.sys V0.10A).
  40  *
  41  * Returns: %STATUS_OBJECT_NAME_NOT_FOUND or %STATUS_SUCCESS if some result returned.
  42  */
  43 NTSTATUS RtlQueryRegistryValues
  44                 (IN ULONG RelativeTo,IN PCWSTR Path,IN PRTL_QUERY_REGISTRY_TABLE QueryTable,IN PVOID Context,IN PVOID Environment)
  45 {
  46 const WCHAR *Path__captive_filesystem_Parameters_ucs2=
  47                 captive_utf8_to_UnicodeString_alloca("\\captive\\filesystem\\Parameters")->Buffer;
  48 const WCHAR *QueryTable_WritingSupport_Name_ucs2=
  49                 captive_utf8_to_UnicodeString_alloca("WritingSupport")->Buffer;
  50
  51         g_return_val_if_fail(Path!=NULL,STATUS_INVALID_PARAMETER);
  52         g_return_val_if_fail(QueryTable!=NULL,STATUS_INVALID_PARAMETER);
  53
  54         if (RelativeTo==RTL_REGISTRY_ABSOLUTE
  55                         && captive_ucs2_compare(Path,Path__captive_filesystem_Parameters_ucs2)
  56                         && QueryTable[0].Name!=NULL
  57                                         && captive_ucs2_compare(QueryTable[0].Name,QueryTable_WritingSupport_Name_ucs2)
  58                         && QueryTable[0].Flags==(RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_REQUIRED)
  59                         && QueryTable[0].EntryContext!=NULL
  60                         && QueryTable[1].Name==NULL) {
  61                 *(ULONG *)QueryTable[0].EntryContext=1; /* => 'EXT2_SUPPORT_WRITING' */
  62                 return STATUS_SUCCESS;
  63                 }
  64
  65         return STATUS_OBJECT_NAME_NOT_FOUND;
  66 }