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 <stdarg.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winreg.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  32
  33 DWORD (WINAPI *pRegCloseKey)(HKEY);
  34 DWORD (WINAPI *pRegCreateKeyA)(HKEY,LPCSTR,PHKEY);
  35 DWORD (WINAPI *pRegDeleteKeyA)(HKEY,LPCSTR);
  36 DWORD (WINAPI *pRegDeleteValueA)(HKEY,LPCSTR);
  37 DWORD (WINAPI *pRegEnumKeyA)(HKEY,DWORD,LPSTR,DWORD);
  38 DWORD (WINAPI *pRegEnumValueA)(HKEY,DWORD,LPSTR,LPDWORD,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
  39 DWORD (WINAPI *pRegFlushKey)(HKEY);
  40 DWORD (WINAPI *pRegOpenKeyA)(HKEY,LPCSTR,PHKEY);
  41 DWORD (WINAPI *pRegQueryValueA)(HKEY,LPCSTR,LPSTR,LPLONG);
  42 DWORD (WINAPI *pRegQueryValueExA)(HKEY,LPCSTR,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
  43 DWORD (WINAPI *pRegSetValueA)(HKEY,LPCSTR,DWORD,LPCSTR,DWORD);
  44 DWORD (WINAPI *pRegSetValueExA)(HKEY,LPCSTR,DWORD,DWORD,CONST BYTE*,DWORD);
  45
  46 static HMODULE advapi32;
  47
  48
  49 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
  50  * some programs. Do not remove those cases. -MM
  51  */
  52 static inline void fix_win16_hkey( HKEY *hkey )
  53 {
  54     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
  55 }
  56
  57 static void init_func_ptrs(void)
  58 {
  59     advapi32 = LoadLibraryA("advapi32.dll");
  60     if (!advapi32)
  61     {
  62         ERR( "Unable to load advapi32.dll\n" );
  63         ExitProcess(1);
  64     }
  65 #define GET_PTR(name)  p##name = (void *)GetProcAddress(advapi32,#name);
  66     GET_PTR( RegCloseKey );
  67     GET_PTR( RegCreateKeyA );
  68     GET_PTR( RegDeleteKeyA );
  69     GET_PTR( RegDeleteValueA );
  70     GET_PTR( RegEnumKeyA );
  71     GET_PTR( RegEnumValueA );
  72     GET_PTR( RegFlushKey );
  73     GET_PTR( RegOpenKeyA );
  74     GET_PTR( RegQueryValueA );
  75     GET_PTR( RegQueryValueExA );
  76     GET_PTR( RegSetValueA );
  77     GET_PTR( RegSetValueExA );
  78 #undef GET_PTR
  79 }
  80
  81 /******************************************************************************
  82  *           RegEnumKey   [KERNEL.216]
  83  */
  84 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
  85 {
  86     if (!advapi32) init_func_ptrs();
  87     fix_win16_hkey( &hkey );
  88     return pRegEnumKeyA( hkey, index, name, name_len );
  89 }
  90
  91 /******************************************************************************
  92  *           RegOpenKey   [KERNEL.217]
  93  */
  94 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
  95 {
  96     if (!advapi32) init_func_ptrs();
  97     fix_win16_hkey( &hkey );
  98     return pRegOpenKeyA( hkey, name, retkey );
  99 }
 100
 101 /******************************************************************************
 102  *           RegCreateKey   [KERNEL.218]
 103  */
 104 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 105 {
 106     if (!advapi32) init_func_ptrs();
 107     fix_win16_hkey( &hkey );
 108     return pRegCreateKeyA( hkey, name, retkey );
 109 }
 110
 111 /******************************************************************************
 112  *           RegDeleteKey   [KERNEL.219]
 113  */
 114 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 115 {
 116     if (!advapi32) init_func_ptrs();
 117     fix_win16_hkey( &hkey );
 118     return pRegDeleteKeyA( hkey, name );
 119 }
 120
 121 /******************************************************************************
 122  *           RegCloseKey   [KERNEL.220]
 123  */
 124 DWORD WINAPI RegCloseKey16( HKEY hkey )
 125 {
 126     if (!advapi32) init_func_ptrs();
 127     fix_win16_hkey( &hkey );
 128     return pRegCloseKey( hkey );
 129 }
 130
 131 /******************************************************************************
 132  *           RegSetValue   [KERNEL.221]
 133  */
 134 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 135 {
 136     if (!advapi32) init_func_ptrs();
 137     fix_win16_hkey( &hkey );
 138     return pRegSetValueA( hkey, name, type, data, count );
 139 }
 140
 141 /******************************************************************************
 142  *           RegDeleteValue  [KERNEL.222]
 143  */
 144 DWORD WINAPI RegDeleteValue16( HKEY hkey, LPSTR name )
 145 {
 146     if (!advapi32) init_func_ptrs();
 147     fix_win16_hkey( &hkey );
 148     return pRegDeleteValueA( hkey, name );
 149 }
 150
 151 /******************************************************************************
 152  *           RegEnumValue   [KERNEL.223]
 153  */
 154 DWORD WINAPI RegEnumValue16( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
 155                              LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
 156 {
 157     if (!advapi32) init_func_ptrs();
 158     fix_win16_hkey( &hkey );
 159     return pRegEnumValueA( hkey, index, value, val_count, reserved, type, data, count );
 160 }
 161
 162 /******************************************************************************
 163  *           RegQueryValue   [KERNEL.224]
 164  *
 165  * NOTES
 166  *    Is this HACK still applicable?
 167  *
 168  * HACK
 169  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 170  *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 171  *    Aldus FH4)
 172  */
 173 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count )
 174 {
 175     if (!advapi32) init_func_ptrs();
 176     fix_win16_hkey( &hkey );
 177     if (count) *count &= 0xffff;
 178     return pRegQueryValueA( hkey, name, data, count );
 179 }
 180
 181 /******************************************************************************
 182  *           RegQueryValueEx   [KERNEL.225]
 183  */
 184 DWORD WINAPI RegQueryValueEx16( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
 185                                 LPBYTE data, LPDWORD count )
 186 {
 187     if (!advapi32) init_func_ptrs();
 188     fix_win16_hkey( &hkey );
 189     return pRegQueryValueExA( hkey, name, reserved, type, data, count );
 190 }
 191
 192 /******************************************************************************
 193  *           RegSetValueEx   [KERNEL.226]
 194  */
 195 DWORD WINAPI RegSetValueEx16( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
 196                               CONST BYTE *data, DWORD count )
 197 {
 198     if (!advapi32) init_func_ptrs();
 199     fix_win16_hkey( &hkey );
 200     if (!count && (type==REG_SZ)) count = strlen(data);
 201     return pRegSetValueExA( hkey, name, reserved, type, data, count );
 202 }
 203
 204 /******************************************************************************
 205  *           RegFlushKey   [KERNEL.227]
 206  */
 207 DWORD WINAPI RegFlushKey16( HKEY hkey )
 208 {
 209     if (!advapi32) init_func_ptrs();
 210     fix_win16_hkey( &hkey );
 211     return pRegFlushKey( hkey );
 212 }