hxplugin.cpp
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上传日期:2013-07-19
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxplugin.cpp,v 1.1.2.1 2004/07/09 02:07:27 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxtypes.h"
- #include "hxresult.h"
- #include "hxassert.h"
- #include "hxcom.h"
- #include "hxcomm.h"
- #include "hxstring.h"
- #include "hxccf.h" // IHXCommonClassFactory
- #include "ihxpckts.h" // IHXBuffer
- #include "hxplugn.h" //IHXComponentPlugin
- #include "hxformt.h" //IHXFileFormatObject
- #include "hxfwrtr.h" //IHXFileWriter
- #include "hxfiles.h" //IHXFileSystemObject
- #include "hxrendr.h" //IHXRenderer
- #include "hxdtcvt.h" //IHXDataRevert
- #include "hxsdesc.h" //IHXStreamDescription
- #include "hxplgns.h" //IHXPluginProperties
- #include "hxmeta1.h" //IHXMetaFileFormatObject
- #include "chxpckts.h" //CHXHeader
- #include "hxpluginarchive.h"
- #include "hxstrutl.h" //SafeStrCat
- #include "dllacces.h"
- #include "dllpath.h"
- #include "debug.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- #if defined(_STATICALLY_LINKED)
- #include "staticff.h"
- #endif
- #include "hxplugindll.h"
- #include "hxplugin.h"
- BEGIN_INTERFACE_LIST_NOCREATE(HXPlugin)
- END_INTERFACE_LIST
- const char* const k_pszValueSeperator = "|";
- HXPlugin::HXPlugin(IUnknown* pContext)
- : m_pValues(0)
- , m_pDll(0)
- , m_pContext(pContext)
- , m_idxPlugin(0)
- , m_pClassFactory(NULL)
- {
- HX_ASSERT(m_pContext);
- m_pContext->AddRef();
- m_pContext->QueryInterface(IID_IHXCommonClassFactory, (void**)&m_pClassFactory);
- HX_ASSERT(m_pClassFactory);
- m_pClassFactory->CreateInstance(CLSID_IHXValues,(void**)&m_pValues);
- }
- // deserializing constructor
- HXPlugin::HXPlugin(IUnknown* pContext, HXPluginArchiveReader& ar)
- : m_pValues(0)
- , m_pDll(0)
- , m_pContext(pContext)
- , m_idxPlugin(0)
- , m_pClassFactory(NULL)
- {
- m_pContext->AddRef();
- m_pContext->QueryInterface(IID_IHXCommonClassFactory, (void**)&m_pClassFactory);
- ar.Read(m_pValues);
- }
- // serialize object
- void HXPlugin::Archive(HXPluginArchiveWriter& ar)
- {
- ar.Write(m_pValues);
- }
- HXPlugin::~HXPlugin()
- {
- HX_RELEASE(m_pValues);
- //HX_RELEASE(m_pDll); weak ref
- HX_RELEASE(m_pClassFactory);
- HX_RELEASE(m_pContext);
- }
- void HXPlugin::SetPluginProperty(const char* pszPluginType)
- {
- DPRINTF(D_INFO, ("HXPlugin()::SetPluginProperty(): type = %sn", pszPluginType));
- IHXBuffer* pBuffer = NULL;
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pBuffer);
- HX_ASSERT(pBuffer);
- pBuffer->Set((UCHAR*)pszPluginType, strlen(pszPluginType)+1);
- m_pValues->SetPropertyCString(PLUGIN_CLASS, pBuffer);
- pBuffer->Release();
- }
- BOOL HXPlugin::DoesMatch(IHXValues* pValues)
- {
- CHXSimpleList PossibleValues1;
- CHXSimpleList PossibleValues2;
- const char* pPropName = NULL;
- ULONG32 nInValue;
- ULONG32 nOutValue;
- IHXBuffer* pInBuffer = NULL;
- IHXBuffer* pOutBuffer = NULL;
- // Check ULONGS 1st
- if (HXR_OK == pValues->GetFirstPropertyULONG32(pPropName, nInValue))
- {
- if (HXR_OK==m_pValues->GetPropertyULONG32(pPropName, nOutValue))
- {
- if (nInValue != nOutValue)
- {
- goto notFoundexit;
- }
- }
- else
- {
- goto notFoundexit;
- }
- while (HXR_OK == pValues->GetNextPropertyULONG32(pPropName, nInValue))
- {
- if (HXR_OK == m_pValues->GetPropertyULONG32(pPropName, nOutValue))
- {
- if (nInValue != nOutValue)
- {
- goto notFoundexit;
- }
- }
- else
- {
- goto notFoundexit;
- }
- }
- }
- // Check String Props.
- if (HXR_OK == pValues->GetFirstPropertyCString(pPropName, pInBuffer))
- {
- if (HXR_OK == m_pValues->GetPropertyCString(pPropName, pOutBuffer))
- {
- if (!AreBufferEqual(pOutBuffer, pInBuffer))
- {
- goto notFoundexit;
- }
- }
- else
- {
- goto notFoundexit;
- }
- HX_RELEASE(pInBuffer);
- HX_RELEASE(pOutBuffer);
- while (HXR_OK == pValues->GetNextPropertyCString(pPropName, pInBuffer))
- {
- if (HXR_OK == m_pValues->GetPropertyCString(pPropName, pOutBuffer))
- {
- if ( !AreBufferEqual(pOutBuffer, pInBuffer))
- {
- goto notFoundexit;
- }
- }
- else
- {
- goto notFoundexit;
- }
- HX_RELEASE(pInBuffer);
- HX_RELEASE(pOutBuffer);
- }
- }
- // Check Buffer Properties
- if (HXR_OK == pValues->GetFirstPropertyBuffer(pPropName, pInBuffer))
- {
- // XXXND Make some utility functions for doing this...
- if (HXR_OK == m_pValues->GetPropertyBuffer(pPropName, pOutBuffer))
- {
- if( pOutBuffer->GetSize() == pInBuffer->GetSize() )
- {
- if( ::memcmp( pOutBuffer->GetBuffer(), pInBuffer->GetBuffer(), pOutBuffer->GetSize() ) )
- {
- goto notFoundexit;
- }
- }
- }
- else
- {
- goto notFoundexit;
- }
- HX_RELEASE(pInBuffer);
- HX_RELEASE(pOutBuffer);
- while (HXR_OK == pValues->GetNextPropertyBuffer(pPropName, pInBuffer))
- {
- if (HXR_OK == m_pValues->GetPropertyBuffer(pPropName, pOutBuffer))
- {
- // XXXND Make some utility functions for doing this...
- if( pOutBuffer->GetSize() == pInBuffer->GetSize() )
- {
- if( ::memcmp( pOutBuffer->GetBuffer(), pInBuffer->GetBuffer(), pOutBuffer->GetSize() ) )
- {
- goto notFoundexit;
- }
- }
- }
- else
- {
- goto notFoundexit;
- }
- HX_RELEASE(pInBuffer);
- HX_RELEASE(pOutBuffer);
- }
- }
- return TRUE; // we made it!
- notFoundexit:
- HX_RELEASE(pInBuffer);
- HX_RELEASE(pOutBuffer);
- return FALSE;
- }
- HX_RESULT HXPlugin::Init(HXPluginDLL* pDll, UINT16 idxPlugin)
- {
- HX_ASSERT(!m_pDll);
- HX_ASSERT(pDll);
- m_pDll = pDll; // weak ref
- m_idxPlugin = idxPlugin;
- m_pValues->SetPropertyULONG32(PLUGIN_INDEX, idxPlugin);
-
- IHXBuffer* pBuff = HXBufferUtil::CreateBuffer(m_pClassFactory, m_pDll->GetFileName());
- m_pValues->SetPropertyCString(PLUGIN_FILENAME, pBuff);
- HX_RELEASE(pBuff);
-
- return HXR_OK;
- }
- BOOL HXPlugin::AreBufferEqual(IHXBuffer* pBigBuff,
- IHXBuffer* pSmallBuff)
- {
- char* pTemp;
- BOOL bRetVal = FALSE;
- pTemp = new char[pBigBuff->GetSize()];
- strcpy(pTemp, (char*)pBigBuff->GetBuffer()); /* Flawfinder: ignore */
- char* token;
- token = strtok(pTemp, k_pszValueSeperator);
- while (token)
- {
- CHXString tokenCHXstring;
- CHXString smallCHXstring;
- tokenCHXstring = token;
- smallCHXstring = (char*)pSmallBuff->GetBuffer();
- tokenCHXstring.TrimLeft();
- tokenCHXstring.TrimRight();
- smallCHXstring.TrimLeft();
- smallCHXstring.TrimRight();
- if (!strcasecmp(tokenCHXstring, smallCHXstring))
- {
- bRetVal = TRUE;
- break;
- }
- token = strtok(NULL, k_pszValueSeperator);
- }
- delete[] pTemp;
- return bRetVal;
- }
- HX_RESULT HXPlugin::GetValuesFromDLL(IHXPlugin* pHXPlugin)
- {
- HX_RESULT hr = GetBasicValues(pHXPlugin);
- if(SUCCEEDED(hr))
- {
- hr = GetExtendedValues(pHXPlugin);
- }
- return hr;
- }
- HX_RESULT HXPlugin::GetPlugin(IUnknown*& pUnknown )
- {
- pUnknown = NULL;
- HX_RESULT hr = HXR_FAIL;
- HX_ASSERT(m_pDll);
- if (m_pDll)
- {
- // load DLL if not loaded
- if (!m_pDll->IsLoaded())
- {
- hr = m_pDll->Load();
- }
-
- if(m_pDll->IsLoaded())
- {
- hr = m_pDll->CreateInstance(&pUnknown, m_idxPlugin);
- }
- }
- return hr;
- }
- HX_RESULT HXPlugin::GetInstance(IUnknown*& pUnknown, IUnknown* pIUnkOuter )
- {
- // Initialize out parameter
- pUnknown = NULL;
- IUnknown* pUnkPlugin = NULL;
- HX_RESULT hr = GetPlugin( pUnkPlugin );
- if( SUCCEEDED(hr) )
- {
- hr = HXR_FAIL;
- IHXComponentPlugin* pComponentPlugin = NULL;
- if( SUCCEEDED( pUnkPlugin->QueryInterface( IID_IHXComponentPlugin, (void**) &pComponentPlugin ) ) )
- {
- // Ask for the correct object by CLSID
- IHXBuffer* pCLSID = NULL;
- if( SUCCEEDED( m_pValues->GetPropertyBuffer( PLUGIN_COMPONENT_CLSID, pCLSID ) ) )
- {
- hr = pComponentPlugin->CreateComponentInstance( *(GUID*) pCLSID->GetBuffer(), pUnknown, pIUnkOuter );
- HX_RELEASE( pCLSID );
- }
- else
- {
- // component plugins must have CLSID
- HX_ASSERT(false);
- }
- HX_RELEASE( pComponentPlugin );
- HX_RELEASE( pUnkPlugin );
- }
- else
- {
- if( !pIUnkOuter )
- {
- pUnknown = pUnkPlugin;
- pUnknown->AddRef();
- hr = HXR_OK;
- }
- else
- {
- // we can't aggregate anything because this is not a component plugin
- HX_ASSERT(false);
- }
- HX_RELEASE( pUnkPlugin );
- }
- }
- return hr;
- }
- HX_RESULT HXPlugin::GetPluginInfo(IHXValues*& pVals)
- {
- if (m_pValues)
- {
- pVals = m_pValues;
- pVals->AddRef();
- return HXR_OK;
- }
- pVals = NULL;
- return HXR_FAIL;
- }
- HX_RESULT
- HXPlugin::GetBasicValues(IHXPlugin* pHXPlugin)
- {
- DPRINTF(D_INFO, ("HXPlugin()::GetBasicValues(): returning nothingn"));
- return HXR_OK;
- #if(0)
- const char* pszDescription = NULL;
- const char* pszCopyright = NULL;
- const char* pszMoreInfoUrl = NULL;
- ULONG32 ulVersionNumber = 0;
- BOOL nload_multiple = 0;
- if (HXR_OK != pHXPlugin->GetPluginInfo(nload_multiple, pszDescription,
- pszCopyright, pszMoreInfoUrl, ulVersionNumber))
- {
- return HXR_FAIL;
- }
- IHXBuffer* pBuffer = NULL;
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pBuffer);
- if (pszDescription)
- {
- pBuffer->Set((UCHAR*)pszDescription, strlen(pszDescription)+1);
- }
- m_pValues->SetPropertyCString(PLUGIN_DESCRIPTION2, pBuffer);
- pBuffer->Release();
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pBuffer);
- if (pszCopyright)
- {
- pBuffer->Set((UCHAR*)pszCopyright, strlen(pszCopyright)+1);
- }
- m_pValues->SetPropertyCString(PLUGIN_COPYRIGHT2, pBuffer);
- pBuffer->Release();
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pBuffer);
- if (pszMoreInfoUrl)
- {
- pBuffer->Set((UCHAR*)pszMoreInfoUrl, strlen(pszMoreInfoUrl)+1);
- }
- m_pValues->SetPropertyCString(PLUGIN_COPYRIGHT, pBuffer);
- pBuffer->Release();
- m_pValues->SetPropertyULONG32(PLUGIN_LOADMULTIPLE, nload_multiple);
- m_pValues->SetPropertyULONG32(PLUGIN_VERSION, ulVersionNumber);
- return HXR_OK;
- #endif
- }
- HX_RESULT
- HXPlugin::GetExtendedValues(IHXPlugin* pHXPlugin)
- {
- IHXFileFormatObject* pFileFormat = NULL;
- IHXFileWriter* pFileWriter = NULL;
- IHXFileSystemObject* pFileSystem = NULL;
- IHXRenderer* pRenderer = NULL;
- IHXDataRevert* pDataRevert = NULL;
- IHXStreamDescription* pStreamDescription = NULL;
- IHXCommonClassFactory* pClassFactory = NULL;
- IHXPluginProperties* pIHXPluginPropertiesThis = NULL;
- UINT32 nCountInterfaces = 0;
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues():n"));
- // file system
- if (HXR_OK == pHXPlugin->QueryInterface(IID_IHXFileSystemObject, (void**) &pFileSystem))
- {
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues(): file system object...n"));
- const char* pszShortName;
- const char* pszProtocol;
- if (HXR_OK != pFileSystem->GetFileSystemInfo(pszShortName, pszProtocol))
- {
- HX_RELEASE (pFileSystem);
- return HXR_FAIL;
- }
- SetPluginProperty(PLUGIN_FILESYSTEM_TYPE);
- IHXBuffer* pBuffer = NULL;
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pBuffer);
- if (pszShortName)
- {
- pBuffer->Set((UCHAR*)pszShortName, strlen(pszShortName)+1);
- }
- m_pValues->SetPropertyCString(PLUGIN_FILESYSTEMSHORT, pBuffer);
- pBuffer->Release();
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pBuffer);
- if (pszProtocol)
- {
- pBuffer->Set((UCHAR*)pszProtocol, strlen(pszProtocol)+1);
- }
- m_pValues->SetPropertyCString(PLUGIN_FILESYSTEMPROTOCOL, pBuffer);
- pBuffer->Release();
- pFileSystem->Release();
- nCountInterfaces++;
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues(): fs proto = '%s'n", pszProtocol));
- }
- // file format
- if (HXR_OK == pHXPlugin->QueryInterface(IID_IHXFileFormatObject, (void**)&pFileFormat) ||
- HXR_OK == pHXPlugin->QueryInterface(IID_IHXMetaFileFormatObject, (void**)&pFileFormat) ||
- HXR_OK == pHXPlugin->QueryInterface(IID_IHXFileWriter, (void**)&pFileWriter))
- {
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues(): file format...n"));
- // fine we are in now we will get the correct type.
- if (pFileFormat)
- {
- pFileFormat->Release();
- }
- else
- {
- pFileWriter->Release();
- }
- IHXMetaFileFormatObject* pMetaFileFormat;
- const char** ppszMimeTypes = NULL;
- const char** ppszExtensions = NULL;
- const char** ppszOpenNames = NULL;
- if (HXR_OK == pHXPlugin->QueryInterface(IID_IHXFileFormatObject, (void**)&pFileFormat))
- {
- pFileFormat->GetFileFormatInfo( ppszMimeTypes,
- ppszExtensions,
- ppszOpenNames);
- pFileFormat->Release();
- SetPluginProperty(PLUGIN_FILEFORMAT_TYPE);
- }
- if (HXR_OK == pHXPlugin->QueryInterface(IID_IHXMetaFileFormatObject, (void**)&pMetaFileFormat))
- {
- pMetaFileFormat->GetMetaFileFormatInfo( ppszMimeTypes,
- ppszExtensions,
- ppszOpenNames);
- pMetaFileFormat->Release();
- SetPluginProperty(PLUGIN_METAFILEFORMAT_TYPE);
- }
- if (HXR_OK == pHXPlugin->QueryInterface(IID_IHXFileWriter, (void**)&pFileWriter))
- {
- pFileWriter->GetFileFormatInfo( ppszMimeTypes,
- ppszExtensions,
- ppszOpenNames);
- pFileWriter->Release();
- SetPluginProperty(PLUGIN_FILEWRITER_TYPE);
- }
- IHXBuffer* pBuffer = NULL;
- if (ppszMimeTypes)
- {
- CatStrings((char**)ppszMimeTypes, pBuffer); //XXXAH this had better be const in reality!
- m_pValues->SetPropertyCString(PLUGIN_FILEMIMETYPES, pBuffer);
- pBuffer->Release();
- }
- if (ppszExtensions)
- {
- CatStrings((char**)ppszExtensions, pBuffer); //XXXAH this had better be const in reality!
- m_pValues->SetPropertyCString(PLUGIN_FILEEXTENSIONS, pBuffer);
- pBuffer->Release();
- }
- if (ppszOpenNames)
- {
- CatStrings((char**)ppszOpenNames, pBuffer); //XXXAH this had better be const in reality!
- m_pValues->SetPropertyCString(PLUGIN_FILEOPENNAMES, pBuffer);
- pBuffer->Release();
- }
- nCountInterfaces++;
- }
- // renderer
- if (HXR_OK == pHXPlugin->QueryInterface(IID_IHXRenderer, (void**)&pRenderer))
- {
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues(): renderer...n"));
- char** ppszMimeTypes;
- UINT32 initial_granularity = 0;
- // get the basic info
- if (HXR_OK == pRenderer->GetRendererInfo((const char**&)ppszMimeTypes, initial_granularity))
- {
- IHXBuffer* pBuffer;
- if (ppszMimeTypes)
- {
- CatStrings(ppszMimeTypes, pBuffer);
- }
- m_pValues->SetPropertyCString(PLUGIN_RENDERER_MIME, pBuffer);
- pBuffer->Release();
- m_pValues->SetPropertyULONG32(PLUGIN_RENDERER_GRANULARITY, initial_granularity);
- SetPluginProperty(PLUGIN_RENDERER_TYPE);
- }
- HX_RELEASE(pRenderer);
- nCountInterfaces++;
- }
- // stream description
- if (HXR_OK == pHXPlugin->QueryInterface(IID_IHXStreamDescription, (void**)&pStreamDescription))
- {
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues(): stream description...n"));
- const char* pszMimeType;
- IHXBuffer* pBuffer;
- if (HXR_OK != pStreamDescription->GetStreamDescriptionInfo(pszMimeType))
- {
- HX_RELEASE (pStreamDescription);
- return HXR_FAIL;
- }
- pStreamDescription->Release();
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pBuffer);
- if (pszMimeType)
- {
- pBuffer->Set((UCHAR*)pszMimeType, strlen(pszMimeType)+1);
- }
- m_pValues->SetPropertyCString(PLUGIN_STREAMDESCRIPTION, pBuffer);
- pBuffer->Release();
- SetPluginProperty(PLUGIN_STREAM_DESC_TYPE);
- nCountInterfaces++;
- }
- // common class factory
- if(HXR_OK == pHXPlugin->QueryInterface(IID_IHXCommonClassFactory,
- (void**)&pClassFactory))
- {
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues(): class factory plugin...n"));
- SetPluginProperty(PLUGIN_CLASS_FACTORY_TYPE);
- HX_RELEASE (pClassFactory);
- nCountInterfaces++;
- }
- if( SUCCEEDED( pHXPlugin->QueryInterface( IID_IHXPluginProperties, (void**)&pIHXPluginPropertiesThis ) ) )
- {
- DPRINTF(D_INFO, ("HXPlugin()::GetExtendedValues(): plugin properties interface...n"));
- IHXValues* pIHXValuesProperties = NULL;
- pHXPlugin->InitPlugin(m_pContext);
- if( SUCCEEDED( pIHXPluginPropertiesThis->GetProperties( pIHXValuesProperties ) ) && pIHXValuesProperties )
- {
- CHXHeader::mergeHeaders( m_pValues, pIHXValuesProperties );
- }
- HX_RELEASE(pIHXValuesProperties);
- }
- HX_RELEASE(pIHXPluginPropertiesThis);
- HX_ASSERT(nCountInterfaces<2);
- return HXR_OK;
- }
- HX_RESULT HXPlugin::AddComponentInfo( IHXValues* pVal )
- {
- CHXHeader::mergeHeaders(m_pValues, pVal);
- return HXR_OK; // no way to know if above succeeded or not
- }
- HX_RESULT HXPlugin::CatStrings(char** pInStrings,
- IHXBuffer*& pOutBuffer)
- {
- ULONG32 nAllocedSpace = 100;
- char* ptemp = new char[nAllocedSpace];
- char* ptemp2 = NULL;
- ULONG32 nStrLen = 0;
- ULONG32 nNewStrLen = 0;
- *ptemp = 0;
- pOutBuffer = 0;
- for(; *pInStrings; pInStrings++)
- {
- nNewStrLen = strlen(*pInStrings);
- if (nNewStrLen+ nStrLen >= nAllocedSpace)
- {
- // double if the new string is less than the new space
- // or add double what it required.
- if (nNewStrLen< nAllocedSpace)
- {
- nAllocedSpace*=2;
- }
- else
- {
- nAllocedSpace+=nNewStrLen*2;
- }
- ptemp2 = new char[nAllocedSpace];
- memcpy(ptemp2, ptemp, nStrLen+1); /* Flawfinder: ignore */
- delete [] ptemp;
- ptemp = ptemp2;
- }
- // XXXAH I must trim the strings before I add them to this string.
- // the find function DEPENDS UPON THIS.
- SafeStrCat(ptemp, *pInStrings, nAllocedSpace);
- if (*(pInStrings+1))
- {
- SafeStrCat(ptemp, k_pszValueSeperator, nAllocedSpace); // XXXAH Perhaps a define?
- }
- nStrLen+=nNewStrLen+1;
- }
- m_pClassFactory->CreateInstance(CLSID_IHXBuffer,(void**)&pOutBuffer);
- pOutBuffer->Set((UCHAR*)ptemp, strlen(ptemp)+1);
- delete[] ptemp;
- return HXR_OK;
- }