mirror of
https://github.com/reactos/wine.git
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340 lines
8.1 KiB
C
340 lines
8.1 KiB
C
/*
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* SHRegOpenStream
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*
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* Copyright 1999 Juergen Schmied
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <string.h>
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#include "winerror.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "shlobj.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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typedef struct
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{ ICOM_VFIELD(IStream);
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DWORD ref;
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HKEY hKey;
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LPBYTE pbBuffer;
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DWORD dwLength;
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DWORD dwPos;
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} ISHRegStream;
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static struct ICOM_VTABLE(IStream) rstvt;
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/**************************************************************************
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* IStream_ConstructorA [internal]
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*/
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static IStream *IStream_ConstructorA(HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue, DWORD grfMode)
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{
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ISHRegStream* rstr;
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DWORD dwType;
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rstr = (ISHRegStream*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(ISHRegStream));
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ICOM_VTBL(rstr)=&rstvt;
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rstr->ref = 1;
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if (!(RegOpenKeyExA (hKey, pszSubKey, 0, KEY_READ, &(rstr->hKey))))
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{
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if (!(RegQueryValueExA(rstr->hKey, pszValue,0,0,0,&(rstr->dwLength))))
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{
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/* read the binary data into the buffer */
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if((rstr->pbBuffer = HeapAlloc(GetProcessHeap(),0,rstr->dwLength)))
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{
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if (!(RegQueryValueExA(rstr->hKey, pszValue,0,&dwType,rstr->pbBuffer,&(rstr->dwLength))))
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{
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if (dwType == REG_BINARY )
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{
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TRACE ("%p\n", rstr);
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return (IStream*)rstr;
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}
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}
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HeapFree (GetProcessHeap(),0,rstr->pbBuffer);
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}
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}
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RegCloseKey(rstr->hKey);
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}
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HeapFree (GetProcessHeap(),0,rstr);
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return NULL;
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}
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/**************************************************************************
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* IStream_ConstructorW [internal]
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*/
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static IStream *IStream_ConstructorW(HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue, DWORD grfMode)
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{
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ISHRegStream* rstr;
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DWORD dwType;
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rstr = (ISHRegStream*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(ISHRegStream));
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ICOM_VTBL(rstr)=&rstvt;
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rstr->ref = 1;
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if (!(RegOpenKeyExW (hKey, pszSubKey, 0, KEY_READ, &(rstr->hKey))))
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{
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if (!(RegQueryValueExW(rstr->hKey, pszValue,0,0,0,&(rstr->dwLength))))
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{
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/* read the binary data into the buffer */
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if((rstr->pbBuffer = HeapAlloc(GetProcessHeap(),0,rstr->dwLength)))
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{
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if (!(RegQueryValueExW(rstr->hKey, pszValue,0,&dwType,rstr->pbBuffer,&(rstr->dwLength))))
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{
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if (dwType == REG_BINARY )
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{
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TRACE ("%p\n", rstr);
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return (IStream*)rstr;
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}
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}
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HeapFree (GetProcessHeap(),0,rstr->pbBuffer);
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}
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}
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RegCloseKey(rstr->hKey);
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}
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HeapFree (GetProcessHeap(),0,rstr);
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return NULL;
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}
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/**************************************************************************
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* IStream_fnQueryInterface
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*/
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static HRESULT WINAPI IStream_fnQueryInterface(IStream *iface, REFIID riid, LPVOID *ppvObj)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
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*ppvObj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
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{ *ppvObj = This;
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}
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else if(IsEqualIID(riid, &IID_IStream)) /*IStream*/
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{ *ppvObj = This;
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}
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if(*ppvObj)
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{
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IStream_AddRef((IStream*)*ppvObj);
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TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
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return S_OK;
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}
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TRACE("-- Interface: E_NOINTERFACE\n");
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return E_NOINTERFACE;
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}
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/**************************************************************************
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* IStream_fnAddRef
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*/
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static ULONG WINAPI IStream_fnAddRef(IStream *iface)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)->(count=%lu)\n",This, This->ref);
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return ++(This->ref);
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}
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/**************************************************************************
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* IStream_fnRelease
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*/
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static ULONG WINAPI IStream_fnRelease(IStream *iface)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)->()\n",This);
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if (!--(This->ref))
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{ TRACE(" destroying SHReg IStream (%p)\n",This);
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if (This->pbBuffer)
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HeapFree(GetProcessHeap(),0,This->pbBuffer);
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if (This->hKey)
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RegCloseKey(This->hKey);
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HeapFree(GetProcessHeap(),0,This);
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return 0;
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}
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return This->ref;
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}
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static HRESULT WINAPI IStream_fnRead (IStream * iface, void* pv, ULONG cb, ULONG* pcbRead)
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{
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ICOM_THIS(ISHRegStream, iface);
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DWORD dwBytesToRead, dwBytesLeft;
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TRACE("(%p)->(%p,0x%08lx,%p)\n",This, pv, cb, pcbRead);
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if ( !pv )
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return STG_E_INVALIDPOINTER;
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dwBytesLeft = This->dwLength - This->dwPos;
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if ( 0 >= dwBytesLeft ) /* end of buffer */
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return S_FALSE;
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dwBytesToRead = ( cb > dwBytesLeft) ? dwBytesLeft : cb;
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memmove ( pv, (This->pbBuffer) + (This->dwPos), dwBytesToRead);
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This->dwPos += dwBytesToRead; /* adjust pointer */
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if (pcbRead)
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*pcbRead = dwBytesToRead;
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return S_OK;
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}
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static HRESULT WINAPI IStream_fnWrite (IStream * iface, const void* pv, ULONG cb, ULONG* pcbWritten)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnSeek (IStream * iface, LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER* plibNewPosition)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnSetSize (IStream * iface, ULARGE_INTEGER libNewSize)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnCopyTo (IStream * iface, IStream* pstm, ULARGE_INTEGER cb, ULARGE_INTEGER* pcbRead, ULARGE_INTEGER* pcbWritten)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnCommit (IStream * iface, DWORD grfCommitFlags)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnRevert (IStream * iface)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnLockRegion (IStream * iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnUnlockRegion (IStream * iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnStat (IStream * iface, STATSTG* pstatstg, DWORD grfStatFlag)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IStream_fnClone (IStream * iface, IStream** ppstm)
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{
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ICOM_THIS(ISHRegStream, iface);
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TRACE("(%p)\n",This);
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return E_NOTIMPL;
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}
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static struct ICOM_VTABLE(IStream) rstvt =
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{
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ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
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IStream_fnQueryInterface,
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IStream_fnAddRef,
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IStream_fnRelease,
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IStream_fnRead,
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IStream_fnWrite,
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IStream_fnSeek,
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IStream_fnSetSize,
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IStream_fnCopyTo,
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IStream_fnCommit,
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IStream_fnRevert,
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IStream_fnLockRegion,
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IStream_fnUnlockRegion,
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IStream_fnStat,
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IStream_fnClone
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};
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/*************************************************************************
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* SHOpenRegStreamA [SHLWAPI.@]
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* SHOpenRegStream2A [SHLWAPI.@]
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*/
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IStream * WINAPI SHOpenRegStreamA(
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HKEY hkey,
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LPCSTR pszSubkey,
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LPCSTR pszValue,
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DWORD grfMode)
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{
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TRACE("(0x%08x,%s,%s,0x%08lx)\n",
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hkey, pszSubkey, pszValue, grfMode);
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return IStream_ConstructorA(hkey, pszSubkey, pszValue, grfMode);
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}
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/*************************************************************************
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* SHOpenRegStreamW [SHLWAPI.@]
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* SHOpenRegStream2W [SHLWAPI.@]
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*/
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IStream * WINAPI SHOpenRegStreamW(
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HKEY hkey,
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LPCWSTR pszSubkey,
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LPCWSTR pszValue,
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DWORD grfMode)
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{
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TRACE("(0x%08x,%s,%s,0x%08lx)\n",
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hkey, debugstr_w(pszSubkey), debugstr_w(pszValue), grfMode);
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return IStream_ConstructorW(hkey, pszSubkey, pszValue, grfMode);
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}
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