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https://github.com/reactos/reactos.git
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449 lines
13 KiB
C
449 lines
13 KiB
C
/*
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* StdRegProv implementation
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*
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* Copyright 2012 Hans Leidekker for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wbemcli.h"
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#include "wine/debug.h"
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#include "wbemprox_private.h"
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#ifdef __REACTOS__
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#include <winreg.h>
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#endif
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WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
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static HRESULT to_bstr_array( BSTR *strings, DWORD count, VARIANT *var )
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{
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SAFEARRAY *sa;
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HRESULT hr;
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LONG i;
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if (!(sa = SafeArrayCreateVector( VT_BSTR, 0, count ))) return E_OUTOFMEMORY;
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for (i = 0; i < count; i++)
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{
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if ((hr = SafeArrayPutElement( sa, &i, strings[i] )) != S_OK)
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{
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SafeArrayDestroy( sa );
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return hr;
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}
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}
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set_variant( VT_BSTR|VT_ARRAY, 0, sa, var );
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return S_OK;
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}
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static void free_bstr_array( BSTR *strings, DWORD count )
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{
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while (count--)
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SysFreeString( *(strings++) );
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}
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static HRESULT to_i4_array( DWORD *values, DWORD count, VARIANT *var )
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{
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SAFEARRAY *sa;
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HRESULT hr;
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LONG i;
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if (!(sa = SafeArrayCreateVector( VT_I4, 0, count ))) return E_OUTOFMEMORY;
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for (i = 0; i < count; i++)
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{
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if ((hr = SafeArrayPutElement( sa, &i, &values[i] )) != S_OK)
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{
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SafeArrayDestroy( sa );
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return hr;
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}
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}
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set_variant( VT_I4|VT_ARRAY, 0, sa, var );
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return S_OK;
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}
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static HRESULT create_key( HKEY root, const WCHAR *subkey, VARIANT *retval )
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{
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LONG res;
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HKEY hkey;
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TRACE("%p, %s\n", root, debugstr_w(subkey));
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res = RegCreateKeyExW( root, subkey, 0, NULL, 0, 0, NULL, &hkey, NULL );
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set_variant( VT_UI4, res, NULL, retval );
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if (!res)
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{
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RegCloseKey( hkey );
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return S_OK;
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}
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return HRESULT_FROM_WIN32( res );
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}
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HRESULT reg_create_key( IWbemClassObject *obj, IWbemClassObject *in, IWbemClassObject **out )
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{
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VARIANT defkey, subkey, retval;
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IWbemClassObject *sig, *out_params = NULL;
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HRESULT hr;
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TRACE("%p, %p\n", in, out);
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hr = IWbemClassObject_Get( in, param_defkeyW, 0, &defkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = IWbemClassObject_Get( in, param_subkeynameW, 0, &subkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = create_signature( class_stdregprovW, method_createkeyW, PARAM_OUT, &sig );
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if (hr != S_OK)
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{
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VariantClear( &subkey );
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return hr;
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}
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if (out)
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{
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hr = IWbemClassObject_SpawnInstance( sig, 0, &out_params );
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if (hr != S_OK)
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{
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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return hr;
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}
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}
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hr = create_key( (HKEY)(INT_PTR)V_I4(&defkey), V_BSTR(&subkey), &retval );
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if (hr == S_OK && out_params)
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hr = IWbemClassObject_Put( out_params, param_returnvalueW, 0, &retval, CIM_UINT32 );
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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if (hr == S_OK && out)
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{
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*out = out_params;
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IWbemClassObject_AddRef( out_params );
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}
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if (out_params) IWbemClassObject_Release( out_params );
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return hr;
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}
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static HRESULT enum_key( HKEY root, const WCHAR *subkey, VARIANT *names, VARIANT *retval )
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{
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HKEY hkey;
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HRESULT hr = S_OK;
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WCHAR buf[256];
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BSTR *strings, *tmp;
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DWORD count = 2, len = ARRAY_SIZE( buf );
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LONG res, i = 0;
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TRACE("%p, %s\n", root, debugstr_w(subkey));
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if (!(strings = heap_alloc( count * sizeof(BSTR) ))) return E_OUTOFMEMORY;
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if ((res = RegOpenKeyExW( root, subkey, 0, KEY_ENUMERATE_SUB_KEYS, &hkey )))
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{
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set_variant( VT_UI4, res, NULL, retval );
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heap_free( strings );
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return S_OK;
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}
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for (;;)
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{
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if (i >= count)
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{
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count *= 2;
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if (!(tmp = heap_realloc( strings, count * sizeof(BSTR) )))
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{
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RegCloseKey( hkey );
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return E_OUTOFMEMORY;
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}
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strings = tmp;
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}
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if ((res = RegEnumKeyW( hkey, i, buf, len )) == ERROR_NO_MORE_ITEMS)
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{
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if (i) res = ERROR_SUCCESS;
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break;
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}
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if (res) break;
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if (!(strings[i] = SysAllocString( buf )))
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{
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for (i--; i >= 0; i--) SysFreeString( strings[i] );
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hr = E_OUTOFMEMORY;
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break;
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}
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i++;
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}
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if (hr == S_OK && !res)
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{
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hr = to_bstr_array( strings, i, names );
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free_bstr_array( strings, i );
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}
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set_variant( VT_UI4, res, NULL, retval );
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RegCloseKey( hkey );
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heap_free( strings );
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return hr;
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}
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HRESULT reg_enum_key( IWbemClassObject *obj, IWbemClassObject *in, IWbemClassObject **out )
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{
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VARIANT defkey, subkey, names, retval;
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IWbemClassObject *sig, *out_params = NULL;
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HRESULT hr;
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TRACE("%p, %p\n", in, out);
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hr = IWbemClassObject_Get( in, param_defkeyW, 0, &defkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = IWbemClassObject_Get( in, param_subkeynameW, 0, &subkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = create_signature( class_stdregprovW, method_enumkeyW, PARAM_OUT, &sig );
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if (hr != S_OK)
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{
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VariantClear( &subkey );
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return hr;
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}
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if (out)
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{
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hr = IWbemClassObject_SpawnInstance( sig, 0, &out_params );
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if (hr != S_OK)
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{
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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return hr;
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}
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}
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VariantInit( &names );
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hr = enum_key( (HKEY)(INT_PTR)V_I4(&defkey), V_BSTR(&subkey), &names, &retval );
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if (hr != S_OK) goto done;
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if (out_params)
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{
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if (!V_UI4( &retval ))
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{
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hr = IWbemClassObject_Put( out_params, param_namesW, 0, &names, CIM_STRING|CIM_FLAG_ARRAY );
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if (hr != S_OK) goto done;
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}
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hr = IWbemClassObject_Put( out_params, param_returnvalueW, 0, &retval, CIM_UINT32 );
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}
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done:
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VariantClear( &names );
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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if (hr == S_OK && out)
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{
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*out = out_params;
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IWbemClassObject_AddRef( out_params );
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}
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if (out_params) IWbemClassObject_Release( out_params );
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return hr;
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}
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static HRESULT enum_values( HKEY root, const WCHAR *subkey, VARIANT *names, VARIANT *types, VARIANT *retval )
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{
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HKEY hkey = NULL;
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HRESULT hr = S_OK;
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BSTR *value_names = NULL;
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DWORD count, buflen, len, *value_types = NULL;
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LONG res, i = 0;
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WCHAR *buf = NULL;
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TRACE("%p, %s\n", root, debugstr_w(subkey));
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if ((res = RegOpenKeyExW( root, subkey, 0, KEY_QUERY_VALUE, &hkey ))) goto done;
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if ((res = RegQueryInfoKeyW( hkey, NULL, NULL, NULL, NULL, NULL, NULL, &count, &buflen, NULL, NULL, NULL )))
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goto done;
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hr = E_OUTOFMEMORY;
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if (!(buf = heap_alloc( (buflen + 1) * sizeof(WCHAR) ))) goto done;
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if (!(value_names = heap_alloc( count * sizeof(BSTR) ))) goto done;
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if (!(value_types = heap_alloc( count * sizeof(DWORD) ))) goto done;
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hr = S_OK;
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for (;;)
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{
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len = buflen + 1;
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res = RegEnumValueW( hkey, i, buf, &len, NULL, &value_types[i], NULL, NULL );
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if (res == ERROR_NO_MORE_ITEMS)
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{
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if (i) res = ERROR_SUCCESS;
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break;
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}
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if (res) break;
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if (!(value_names[i] = SysAllocString( buf )))
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{
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for (i--; i >= 0; i--) SysFreeString( value_names[i] );
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hr = E_OUTOFMEMORY;
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break;
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}
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i++;
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}
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if (hr == S_OK && !res)
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{
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hr = to_bstr_array( value_names, i, names );
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free_bstr_array( value_names, i );
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if (hr == S_OK) hr = to_i4_array( value_types, i, types );
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}
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done:
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set_variant( VT_UI4, res, NULL, retval );
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RegCloseKey( hkey );
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heap_free( value_names );
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heap_free( value_types );
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heap_free( buf );
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return hr;
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}
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HRESULT reg_enum_values( IWbemClassObject *obj, IWbemClassObject *in, IWbemClassObject **out )
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{
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VARIANT defkey, subkey, names, types, retval;
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IWbemClassObject *sig, *out_params = NULL;
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HRESULT hr;
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TRACE("%p, %p\n", in, out);
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hr = IWbemClassObject_Get( in, param_defkeyW, 0, &defkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = IWbemClassObject_Get( in, param_subkeynameW, 0, &subkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = create_signature( class_stdregprovW, method_enumvaluesW, PARAM_OUT, &sig );
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if (hr != S_OK)
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{
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VariantClear( &subkey );
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return hr;
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}
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if (out)
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{
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hr = IWbemClassObject_SpawnInstance( sig, 0, &out_params );
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if (hr != S_OK)
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{
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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return hr;
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}
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}
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VariantInit( &names );
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VariantInit( &types );
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hr = enum_values( (HKEY)(INT_PTR)V_I4(&defkey), V_BSTR(&subkey), &names, &types, &retval );
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if (hr != S_OK) goto done;
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if (out_params)
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{
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if (!V_UI4( &retval ))
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{
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hr = IWbemClassObject_Put( out_params, param_namesW, 0, &names, CIM_STRING|CIM_FLAG_ARRAY );
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if (hr != S_OK) goto done;
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hr = IWbemClassObject_Put( out_params, param_typesW, 0, &types, CIM_SINT32|CIM_FLAG_ARRAY );
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if (hr != S_OK) goto done;
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}
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hr = IWbemClassObject_Put( out_params, param_returnvalueW, 0, &retval, CIM_UINT32 );
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}
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done:
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VariantClear( &types );
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VariantClear( &names );
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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if (hr == S_OK && out)
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{
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*out = out_params;
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IWbemClassObject_AddRef( out_params );
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}
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if (out_params) IWbemClassObject_Release( out_params );
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return hr;
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}
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static HRESULT get_stringvalue( HKEY root, const WCHAR *subkey, const WCHAR *name, VARIANT *value, VARIANT *retval )
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{
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HRESULT hr = S_OK;
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BSTR str = NULL;
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DWORD size;
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LONG res;
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TRACE("%p, %s, %s\n", root, debugstr_w(subkey), debugstr_w(name));
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if ((res = RegGetValueW( root, subkey, name, RRF_RT_REG_SZ, NULL, NULL, &size ))) goto done;
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if (!(str = SysAllocStringLen( NULL, size / sizeof(WCHAR) - 1 )))
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{
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hr = E_OUTOFMEMORY;
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goto done;
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}
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if (!(res = RegGetValueW( root, subkey, name, RRF_RT_REG_SZ, NULL, str, &size )))
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set_variant( VT_BSTR, 0, str, value );
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done:
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set_variant( VT_UI4, res, NULL, retval );
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if (res) SysFreeString( str );
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return hr;
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}
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HRESULT reg_get_stringvalue( IWbemClassObject *obj, IWbemClassObject *in, IWbemClassObject **out )
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{
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VARIANT defkey, subkey, name, value, retval;
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IWbemClassObject *sig, *out_params = NULL;
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HRESULT hr;
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TRACE("%p, %p\n", in, out);
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hr = IWbemClassObject_Get( in, param_defkeyW, 0, &defkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = IWbemClassObject_Get( in, param_subkeynameW, 0, &subkey, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = IWbemClassObject_Get( in, param_valuenameW, 0, &name, NULL, NULL );
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if (hr != S_OK) return hr;
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hr = create_signature( class_stdregprovW, method_getstringvalueW, PARAM_OUT, &sig );
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if (hr != S_OK)
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{
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VariantClear( &name );
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VariantClear( &subkey );
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return hr;
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}
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if (out)
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{
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hr = IWbemClassObject_SpawnInstance( sig, 0, &out_params );
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if (hr != S_OK)
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{
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VariantClear( &name );
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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return hr;
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}
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}
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VariantInit( &value );
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hr = get_stringvalue( (HKEY)(INT_PTR)V_I4(&defkey), V_BSTR(&subkey), V_BSTR(&name), &value, &retval );
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if (hr != S_OK) goto done;
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if (out_params)
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{
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if (!V_UI4( &retval ))
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{
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hr = IWbemClassObject_Put( out_params, param_valueW, 0, &value, CIM_STRING );
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if (hr != S_OK) goto done;
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}
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hr = IWbemClassObject_Put( out_params, param_returnvalueW, 0, &retval, CIM_UINT32 );
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}
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done:
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VariantClear( &name );
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VariantClear( &subkey );
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IWbemClassObject_Release( sig );
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if (hr == S_OK && out)
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{
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*out = out_params;
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IWbemClassObject_AddRef( out_params );
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}
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if (out_params) IWbemClassObject_Release( out_params );
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return hr;
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}
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