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advapi32: Added implementation of RegDeleteTreeA/W.

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This commit is contained in:
Stefan Leichter 2007-05-25 18:15:54 +02:00 committed by Alexandre Julliard
parent 9aaaafa774
commit 88b6bc4f7c
3 changed files with 93 additions and 0 deletions
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2
dlls/advapi32/advapi32.spec
View File

@ -473,6 +473,8 @@
@ stdcall RegCreateKeyW(long wstr ptr)
@ stdcall RegDeleteKeyA(long str)
@ stdcall RegDeleteKeyW(long wstr)
@ stdcall RegDeleteTreeA(long str)
@ stdcall RegDeleteTreeW(long wstr)
@ stdcall RegDeleteValueA(long str)
@ stdcall RegDeleteValueW(long wstr)
@ stdcall RegDisablePredefinedCache()

88
dlls/advapi32/registry.c
View File

@ -2615,3 +2615,91 @@ LONG WINAPI RegDisablePredefinedCache(void)
return ERROR_SUCCESS;
}
/******************************************************************************
* RegDeleteTreeW [ADVAPI32.@]
*
*/
LONG WINAPI RegDeleteTreeW(HKEY hKey, LPCWSTR lpszSubKey)
{
LONG ret;
DWORD dwMaxSubkeyLen, dwMaxValueLen;
DWORD dwMaxLen, dwSize;
WCHAR szNameBuf[MAX_PATH], *lpszName = szNameBuf;
HKEY hSubKey = hKey;
TRACE("(hkey=%p,%p %s)\n", hKey, lpszSubKey, debugstr_w(lpszSubKey));
if(lpszSubKey)
{
ret = RegOpenKeyExW(hKey, lpszSubKey, 0, KEY_READ, &hSubKey);
if (ret) return ret;
}
/* Get highest length for keys, values */
ret = RegQueryInfoKeyW(hSubKey, NULL, NULL, NULL, NULL,
&dwMaxSubkeyLen, NULL, NULL, &dwMaxValueLen, NULL, NULL, NULL);
if (ret) goto cleanup;
dwMaxSubkeyLen++;
dwMaxValueLen++;
dwMaxLen = max(dwMaxSubkeyLen, dwMaxValueLen);
if (dwMaxLen > sizeof(szNameBuf)/sizeof(WCHAR))
{
/* Name too big: alloc a buffer for it */
if (!(lpszName = HeapAlloc( GetProcessHeap(), 0, dwMaxLen*sizeof(WCHAR))))
{
ret = ERROR_NOT_ENOUGH_MEMORY;
goto cleanup;
}
}
/* Recursively delete all the subkeys */
while (TRUE)
{
dwSize = dwMaxLen;
if (RegEnumKeyExW(hSubKey, 0, lpszName, &dwSize, NULL,
NULL, NULL, NULL)) break;
ret = RegDeleteTreeW(hSubKey, lpszName);
if (ret) goto cleanup;
}
if (lpszSubKey)
ret = RegDeleteKeyW(hKey, lpszSubKey);
else
while (TRUE)
{
dwSize = dwMaxLen;
if (RegEnumValueW(hKey, 0, lpszName, &dwSize,
NULL, NULL, NULL, NULL)) break;
ret = RegDeleteValueW(hKey, lpszName);
if (ret) goto cleanup;
}
cleanup:
/* Free buffer if allocated */
if (lpszName != szNameBuf)
HeapFree( GetProcessHeap(), 0, lpszName);
if(lpszSubKey)
RegCloseKey(hSubKey);
return ret;
}
/******************************************************************************
* RegDeleteTreeA [ADVAPI32.@]
*
*/
LONG WINAPI RegDeleteTreeA(HKEY hKey, LPCSTR lpszSubKey)
{
LONG ret;
UNICODE_STRING lpszSubKeyW;
if (lpszSubKey) RtlCreateUnicodeStringFromAsciiz( &lpszSubKeyW, lpszSubKey);
else lpszSubKeyW.Buffer = NULL;
ret = RegDeleteTreeW( hKey, lpszSubKeyW.Buffer);
RtlFreeUnicodeString( &lpszSubKeyW );
return ret;
}

3
include/winreg.h
View File

@ -154,6 +154,9 @@ LONG WINAPI RegCreateKeyW(HKEY,LPCWSTR,PHKEY);
LONG WINAPI RegDeleteKeyA(HKEY,LPCSTR);
LONG WINAPI RegDeleteKeyW(HKEY,LPCWSTR);
#define RegDeleteKey WINELIB_NAME_AW(RegDeleteKey)
LONG WINAPI RegDeleteTreeA(HKEY,LPCSTR);
LONG WINAPI RegDeleteTreeW(HKEY,LPCWSTR);
#define RegDeleteTree WINELIB_NAME_AW(RegDeleteTree)
LONG WINAPI RegDeleteValueA(HKEY,LPCSTR);
LONG WINAPI RegDeleteValueW(HKEY,LPCWSTR);
#define RegDeleteValue WINELIB_NAME_AW(RegDeleteValue)