dlls/kernel/registry16.c

   1 /*
   2  * 16-bit registry functions
   3  *
   4  * Copyright 1996 Marcus Meissner
   5  * Copyright 1998 Matthew Becker
   6  * Copyright 1999 Sylvain St-Germain
   7  * Copyright 2002 Alexandre Julliard
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #include "winbase.h"
  25 #include "winreg.h"
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  29
  30 DWORD (WINAPI *pRegCloseKey)(HKEY);
  31 DWORD (WINAPI *pRegCreateKeyA)(HKEY,LPCSTR,LPHKEY);
  32 DWORD (WINAPI *pRegDeleteKeyA)(HKEY,LPCSTR);
  33 DWORD (WINAPI *pRegDeleteValueA)(HKEY,LPCSTR);
  34 DWORD (WINAPI *pRegEnumKeyA)(HKEY,DWORD,LPSTR,DWORD);
  35 DWORD (WINAPI *pRegEnumValueA)(HKEY,DWORD,LPSTR,LPDWORD,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
  36 DWORD (WINAPI *pRegFlushKey)(HKEY);
  37 DWORD (WINAPI *pRegOpenKeyA)(HKEY,LPCSTR,LPHKEY);
  38 DWORD (WINAPI *pRegQueryValueA)(HKEY,LPCSTR,LPSTR,LPLONG);
  39 DWORD (WINAPI *pRegQueryValueExA)(HKEY,LPCSTR,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
  40 DWORD (WINAPI *pRegSetValueA)(HKEY,LPCSTR,DWORD,LPCSTR,DWORD);
  41 DWORD (WINAPI *pRegSetValueExA)(HKEY,LPCSTR,DWORD,DWORD,CONST BYTE*,DWORD);
  42
  43 static HMODULE advapi32;
  44
  45
  46 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
  47  * some programs. Do not remove those cases. -MM
  48  */
  49 static inline void fix_win16_hkey( HKEY *hkey )
  50 {
  51     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
  52 }
  53
  54 static void init_func_ptrs(void)
  55 {
  56     advapi32 = LoadLibraryA("advapi32.dll");
  57     if (!advapi32)
  58     {
  59         ERR( "Unable to load advapi32.dll\n" );
  60         ExitProcess(1);
  61     }
  62 #define GET_PTR(name)  p##name = (void *)GetProcAddress(advapi32,#name);
  63     GET_PTR( RegCloseKey );
  64     GET_PTR( RegCreateKeyA );
  65     GET_PTR( RegDeleteKeyA );
  66     GET_PTR( RegDeleteValueA );
  67     GET_PTR( RegEnumKeyA );
  68     GET_PTR( RegEnumValueA );
  69     GET_PTR( RegFlushKey );
  70     GET_PTR( RegOpenKeyA );
  71     GET_PTR( RegQueryValueA );
  72     GET_PTR( RegQueryValueExA );
  73     GET_PTR( RegSetValueA );
  74     GET_PTR( RegSetValueExA );
  75 #undef GET_PTR
  76 }
  77
  78 /******************************************************************************
  79  *           RegEnumKey   [KERNEL.216]
  80  */
  81 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
  82 {
  83     if (!advapi32) init_func_ptrs();
  84     fix_win16_hkey( &hkey );
  85     return pRegEnumKeyA( hkey, index, name, name_len );
  86 }
  87
  88 /******************************************************************************
  89  *           RegOpenKey   [KERNEL.217]
  90  */
  91 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, LPHKEY retkey )
  92 {
  93     if (!advapi32) init_func_ptrs();
  94     fix_win16_hkey( &hkey );
  95     return pRegOpenKeyA( hkey, name, retkey );
  96 }
  97
  98 /******************************************************************************
  99  *           RegCreateKey   [KERNEL.218]
 100  */
 101 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, LPHKEY retkey )
 102 {
 103     if (!advapi32) init_func_ptrs();
 104     fix_win16_hkey( &hkey );
 105     return pRegCreateKeyA( hkey, name, retkey );
 106 }
 107
 108 /******************************************************************************
 109  *           RegDeleteKey   [KERNEL.219]
 110  */
 111 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 112 {
 113     if (!advapi32) init_func_ptrs();
 114     fix_win16_hkey( &hkey );
 115     return pRegDeleteKeyA( hkey, name );
 116 }
 117
 118 /******************************************************************************
 119  *           RegCloseKey   [KERNEL.220]
 120  */
 121 DWORD WINAPI RegCloseKey16( HKEY hkey )
 122 {
 123     if (!advapi32) init_func_ptrs();
 124     fix_win16_hkey( &hkey );
 125     return pRegCloseKey( hkey );
 126 }
 127
 128 /******************************************************************************
 129  *           RegSetValue   [KERNEL.221]
 130  */
 131 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 132 {
 133     if (!advapi32) init_func_ptrs();
 134     fix_win16_hkey( &hkey );
 135     return pRegSetValueA( hkey, name, type, data, count );
 136 }
 137
 138 /******************************************************************************
 139  *           RegDeleteValue  [KERNEL.222]
 140  */
 141 DWORD WINAPI RegDeleteValue16( HKEY hkey, LPSTR name )
 142 {
 143     if (!advapi32) init_func_ptrs();
 144     fix_win16_hkey( &hkey );
 145     return pRegDeleteValueA( hkey, name );
 146 }
 147
 148 /******************************************************************************
 149  *           RegEnumValue   [KERNEL.223]
 150  */
 151 DWORD WINAPI RegEnumValue16( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
 152                              LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
 153 {
 154     if (!advapi32) init_func_ptrs();
 155     fix_win16_hkey( &hkey );
 156     return pRegEnumValueA( hkey, index, value, val_count, reserved, type, data, count );
 157 }
 158
 159 /******************************************************************************
 160  *           RegQueryValue   [KERNEL.224]
 161  *
 162  * NOTES
 163  *    Is this HACK still applicable?
 164  *
 165  * HACK
 166  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 167  *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 168  *    Aldus FH4)
 169  */
 170 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count )
 171 {
 172     if (!advapi32) init_func_ptrs();
 173     fix_win16_hkey( &hkey );
 174     if (count) *count &= 0xffff;
 175     return pRegQueryValueA( hkey, name, data, count );
 176 }
 177
 178 /******************************************************************************
 179  *           RegQueryValueEx   [KERNEL.225]
 180  */
 181 DWORD WINAPI RegQueryValueEx16( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
 182                                 LPBYTE data, LPDWORD count )
 183 {
 184     if (!advapi32) init_func_ptrs();
 185     fix_win16_hkey( &hkey );
 186     return pRegQueryValueExA( hkey, name, reserved, type, data, count );
 187 }
 188
 189 /******************************************************************************
 190  *           RegSetValueEx   [KERNEL.226]
 191  */
 192 DWORD WINAPI RegSetValueEx16( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
 193                               CONST BYTE *data, DWORD count )
 194 {
 195     if (!advapi32) init_func_ptrs();
 196     fix_win16_hkey( &hkey );
 197     if (!count && (type==REG_SZ)) count = strlen(data);
 198     return pRegSetValueExA( hkey, name, reserved, type, data, count );
 199 }
 200
 201 /******************************************************************************
 202  *           RegFlushKey   [KERNEL.227]
 203  */
 204 DWORD WINAPI RegFlushKey16( HKEY hkey )
 205 {
 206     if (!advapi32) init_func_ptrs();
 207     fix_win16_hkey( &hkey );
 208     return pRegFlushKey( hkey );
 209 }