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 #include "wine/winbase16.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  33
  34 DWORD (WINAPI *pRegCloseKey)(HKEY);
  35 DWORD (WINAPI *pRegCreateKeyA)(HKEY,LPCSTR,PHKEY);
  36 DWORD (WINAPI *pRegDeleteKeyA)(HKEY,LPCSTR);
  37 DWORD (WINAPI *pRegDeleteValueA)(HKEY,LPCSTR);
  38 DWORD (WINAPI *pRegEnumKeyA)(HKEY,DWORD,LPSTR,DWORD);
  39 DWORD (WINAPI *pRegEnumValueA)(HKEY,DWORD,LPSTR,LPDWORD,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
  40 DWORD (WINAPI *pRegFlushKey)(HKEY);
  41 DWORD (WINAPI *pRegOpenKeyA)(HKEY,LPCSTR,PHKEY);
  42 DWORD (WINAPI *pRegQueryValueA)(HKEY,LPCSTR,LPSTR,LPLONG);
  43 DWORD (WINAPI *pRegQueryValueExA)(HKEY,LPCSTR,LPDWORD,LPDWORD,LPBYTE,LPDWORD);
  44 DWORD (WINAPI *pRegSetValueA)(HKEY,LPCSTR,DWORD,LPCSTR,DWORD);
  45 DWORD (WINAPI *pRegSetValueExA)(HKEY,LPCSTR,DWORD,DWORD,CONST BYTE*,DWORD);
  46
  47 static HMODULE advapi32;
  48
  49
  50 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
  51  * some programs. Do not remove those cases. -MM
  52  */
  53 static inline void fix_win16_hkey( HKEY *hkey )
  54 {
  55     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
  56 }
  57
  58 static void init_func_ptrs(void)
  59 {
  60     advapi32 = LoadLibraryA("advapi32.dll");
  61     if (!advapi32)
  62     {
  63         ERR( "Unable to load advapi32.dll\n" );
  64         ExitProcess(1);
  65     }
  66 #define GET_PTR(name)  p##name = (void *)GetProcAddress(advapi32,#name);
  67     GET_PTR( RegCloseKey );
  68     GET_PTR( RegCreateKeyA );
  69     GET_PTR( RegDeleteKeyA );
  70     GET_PTR( RegDeleteValueA );
  71     GET_PTR( RegEnumKeyA );
  72     GET_PTR( RegEnumValueA );
  73     GET_PTR( RegFlushKey );
  74     GET_PTR( RegOpenKeyA );
  75     GET_PTR( RegQueryValueA );
  76     GET_PTR( RegQueryValueExA );
  77     GET_PTR( RegSetValueA );
  78     GET_PTR( RegSetValueExA );
  79 #undef GET_PTR
  80 }
  81
  82 /******************************************************************************
  83  *           RegEnumKey   [KERNEL.216]
  84  */
  85 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
  86 {
  87     if (!advapi32) init_func_ptrs();
  88     fix_win16_hkey( &hkey );
  89     return pRegEnumKeyA( hkey, index, name, name_len );
  90 }
  91
  92 /******************************************************************************
  93  *           RegOpenKey   [KERNEL.217]
  94  */
  95 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
  96 {
  97     if (!advapi32) init_func_ptrs();
  98     fix_win16_hkey( &hkey );
  99     return pRegOpenKeyA( hkey, name, retkey );
 100 }
 101
 102 /******************************************************************************
 103  *           RegCreateKey   [KERNEL.218]
 104  */
 105 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 106 {
 107     if (!advapi32) init_func_ptrs();
 108     fix_win16_hkey( &hkey );
 109     return pRegCreateKeyA( hkey, name, retkey );
 110 }
 111
 112 /******************************************************************************
 113  *           RegDeleteKey   [KERNEL.219]
 114  */
 115 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 116 {
 117     if (!advapi32) init_func_ptrs();
 118     fix_win16_hkey( &hkey );
 119     return pRegDeleteKeyA( hkey, name );
 120 }
 121
 122 /******************************************************************************
 123  *           RegCloseKey   [KERNEL.220]
 124  */
 125 DWORD WINAPI RegCloseKey16( HKEY hkey )
 126 {
 127     if (!advapi32) init_func_ptrs();
 128     fix_win16_hkey( &hkey );
 129     return pRegCloseKey( hkey );
 130 }
 131
 132 /******************************************************************************
 133  *           RegSetValue   [KERNEL.221]
 134  */
 135 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 136 {
 137     if (!advapi32) init_func_ptrs();
 138     fix_win16_hkey( &hkey );
 139     return pRegSetValueA( hkey, name, type, data, count );
 140 }
 141
 142 /******************************************************************************
 143  *           RegDeleteValue  [KERNEL.222]
 144  */
 145 DWORD WINAPI RegDeleteValue16( HKEY hkey, LPSTR name )
 146 {
 147     if (!advapi32) init_func_ptrs();
 148     fix_win16_hkey( &hkey );
 149     return pRegDeleteValueA( hkey, name );
 150 }
 151
 152 /******************************************************************************
 153  *           RegEnumValue   [KERNEL.223]
 154  */
 155 DWORD WINAPI RegEnumValue16( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
 156                              LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
 157 {
 158     if (!advapi32) init_func_ptrs();
 159     fix_win16_hkey( &hkey );
 160     return pRegEnumValueA( hkey, index, value, val_count, reserved, type, data, count );
 161 }
 162
 163 /******************************************************************************
 164  *           RegQueryValue   [KERNEL.224]
 165  *
 166  * NOTES
 167  *    Is this HACK still applicable?
 168  *
 169  * HACK
 170  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 171  *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 172  *    Aldus FH4)
 173  */
 174 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count )
 175 {
 176     if (!advapi32) init_func_ptrs();
 177     fix_win16_hkey( &hkey );
 178     if (count) *count &= 0xffff;
 179     return pRegQueryValueA( hkey, name, data, count );
 180 }
 181
 182 /******************************************************************************
 183  *           RegQueryValueEx   [KERNEL.225]
 184  */
 185 DWORD WINAPI RegQueryValueEx16( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
 186                                 LPBYTE data, LPDWORD count )
 187 {
 188     if (!advapi32) init_func_ptrs();
 189     fix_win16_hkey( &hkey );
 190     return pRegQueryValueExA( hkey, name, reserved, type, data, count );
 191 }
 192
 193 /******************************************************************************
 194  *           RegSetValueEx   [KERNEL.226]
 195  */
 196 DWORD WINAPI RegSetValueEx16( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
 197                               CONST BYTE *data, DWORD count )
 198 {
 199     if (!advapi32) init_func_ptrs();
 200     fix_win16_hkey( &hkey );
 201     if (!count && (type==REG_SZ)) count = strlen(data);
 202     return pRegSetValueExA( hkey, name, reserved, type, data, count );
 203 }
 204
 205 /******************************************************************************
 206  *           RegFlushKey   [KERNEL.227]
 207  */
 208 DWORD WINAPI RegFlushKey16( HKEY hkey )
 209 {
 210     if (!advapi32) init_func_ptrs();
 211     fix_win16_hkey( &hkey );
 212     return pRegFlushKey( hkey );
 213 }