496 lines
12 KiB
C++
496 lines
12 KiB
C++
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//
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// Copyright (c) 1997-2001 Microsoft Corporation, All Rights Reserved
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//
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#include "precomp.h"
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const WCHAR QueryConvertor::wchAND = L'&';
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const WCHAR QueryConvertor::wchOR = L'|';
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const WCHAR QueryConvertor::wchNOT = L'!';
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const WCHAR QueryConvertor::wchSTAR = L'*';
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const WCHAR QueryConvertor::wchEQUAL = L'=';
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const WCHAR QueryConvertor::wchLEFT_BRACKET = L'(';
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const WCHAR QueryConvertor::wchRIGHT_BRACKET = L')';
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const WCHAR QueryConvertor::wchBACK_SLASH = L'\\';
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LPCWSTR QueryConvertor::pszGE = L">=";
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LPCWSTR QueryConvertor::pszLE = L"<=";
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int Stack::s_iMax = 100;
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// This assumes that enough memory has been allocated to the resulting query
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BOOLEAN QueryConvertor::ConvertQueryToLDAP(SQL_LEVEL_1_RPN_EXPRESSION *pExp, LPWSTR pszLDAPQuery)
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{
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Stack t_stack;
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int iCurrentOperator = 0, idwNumOperandsLeft = 0;
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int iOutputIndex = 0;
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if(pExp->nNumTokens == 0)
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return TRUE;
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int iCurrentToken = pExp->nNumTokens -1;
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SQL_LEVEL_1_TOKEN *pNextToken = pExp->pArrayOfTokens + iCurrentToken;
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BOOLEAN retVal = FALSE, done = FALSE;
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// Write a '(' at the head of the LDAP Query
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pszLDAPQuery[iOutputIndex ++] = wchLEFT_BRACKET;
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while (!done && iCurrentToken >= 0)
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{
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switch(pNextToken->nTokenType)
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{
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case SQL_LEVEL_1_TOKEN::OP_EXPRESSION:
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{
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// Try to tranlsate expression to LDAP
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if(TranslateExpression(pszLDAPQuery, &iOutputIndex, pNextToken->nOperator, pNextToken->pPropertyName, &pNextToken->vConstValue))
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{
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// If we've finished all the operands for the current operator, get the next one
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idwNumOperandsLeft --;
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while(idwNumOperandsLeft == 0)
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{
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pszLDAPQuery[iOutputIndex ++] = wchRIGHT_BRACKET;
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if(!t_stack.Pop(&iCurrentOperator, &idwNumOperandsLeft))
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done = TRUE;
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idwNumOperandsLeft --;
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}
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iCurrentToken --;
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}
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else
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done = TRUE;
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pNextToken --;
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break;
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}
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case SQL_LEVEL_1_TOKEN::TOKEN_AND:
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{
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if(iCurrentOperator)
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{
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if(!t_stack.Push(iCurrentOperator, idwNumOperandsLeft))
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done = TRUE;
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iCurrentOperator = SQL_LEVEL_1_TOKEN::TOKEN_AND;
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idwNumOperandsLeft = 2;
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pszLDAPQuery[iOutputIndex ++] = wchLEFT_BRACKET;
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pszLDAPQuery[iOutputIndex ++] = wchAND;
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}
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else
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{
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pszLDAPQuery[iOutputIndex ++] = wchLEFT_BRACKET;
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pszLDAPQuery[iOutputIndex ++] = wchAND;
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iCurrentOperator = SQL_LEVEL_1_TOKEN::TOKEN_AND;
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idwNumOperandsLeft = 2;
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}
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iCurrentToken --;
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pNextToken --;
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break;
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}
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case SQL_LEVEL_1_TOKEN::TOKEN_OR:
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{
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if(iCurrentOperator)
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{
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if(!t_stack.Push(iCurrentOperator, idwNumOperandsLeft))
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done = TRUE;
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iCurrentOperator = SQL_LEVEL_1_TOKEN::TOKEN_OR;
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idwNumOperandsLeft = 2;
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pszLDAPQuery[iOutputIndex ++] = wchLEFT_BRACKET;
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pszLDAPQuery[iOutputIndex ++] = wchOR;
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}
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else
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{
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pszLDAPQuery[iOutputIndex ++] = wchLEFT_BRACKET;
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pszLDAPQuery[iOutputIndex ++] = wchOR;
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iCurrentOperator = SQL_LEVEL_1_TOKEN::TOKEN_OR;
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idwNumOperandsLeft = 2;
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}
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iCurrentToken --;
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pNextToken --;
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break;
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}
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case SQL_LEVEL_1_TOKEN::TOKEN_NOT:
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{
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if(iCurrentOperator)
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{
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if(!t_stack.Push(iCurrentOperator, idwNumOperandsLeft))
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done = TRUE;
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iCurrentOperator = SQL_LEVEL_1_TOKEN::TOKEN_NOT;
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idwNumOperandsLeft = 1;
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pszLDAPQuery[iOutputIndex ++] = wchLEFT_BRACKET;
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pszLDAPQuery[iOutputIndex ++] = wchNOT;
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}
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else
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{
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pszLDAPQuery[iOutputIndex ++] = wchLEFT_BRACKET;
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pszLDAPQuery[iOutputIndex ++] = wchNOT;
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iCurrentOperator = SQL_LEVEL_1_TOKEN::TOKEN_NOT;
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idwNumOperandsLeft = 1;
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}
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iCurrentToken --;
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pNextToken --;
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break;
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}
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default:
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done = TRUE;
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break;
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}
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}
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// Check if we used up all the tokens
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if(iCurrentToken == -1)
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retVal = TRUE;
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// Write a ')' at the end of the LDAP Query
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pszLDAPQuery[iOutputIndex ++] = wchRIGHT_BRACKET;
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pszLDAPQuery[iOutputIndex ++] = NULL;
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return retVal;
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}
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BOOLEAN QueryConvertor::TranslateExpression(LPWSTR pszLDAPQuery, int *piOutputIndex,
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int iOperator, LPCWSTR pszPropertyName, VARIANT *pValue)
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{
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// If it is a CIMOM System property, then dont attempt to map it to LDAP
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if(pszPropertyName[0] == L'_' &&
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pszPropertyName[1] == L'_' )
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return TRUE;
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// If it is ADSIPath, convert it to distinguishedName attribute
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if(_wcsicmp(pszPropertyName, ADSI_PATH_ATTR) == 0 )
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{
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if(pValue== NULL || pValue->vt == VT_NULL)
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{
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if(iOperator == SQL_LEVEL_1_TOKEN::OP_NOT_EQUAL)
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{
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// Put the property name as DistiguishedName
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wcscpy(pszLDAPQuery + *piOutputIndex, DISTINGUISHED_NAME_ATTR);
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*piOutputIndex += wcslen(DISTINGUISHED_NAME_ATTR);
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*(pszLDAPQuery + *piOutputIndex) = wchEQUAL;
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(*piOutputIndex) ++;
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*(pszLDAPQuery + *piOutputIndex) = wchSTAR;
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(*piOutputIndex) ++;
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return TRUE;
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}
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else
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{
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// The '!'
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*(pszLDAPQuery + *piOutputIndex) = wchNOT;
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(*piOutputIndex) ++;
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// The '('
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*(pszLDAPQuery + *piOutputIndex) = wchLEFT_BRACKET;
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(*piOutputIndex) ++;
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if(TranslateExpression(pszLDAPQuery, piOutputIndex, SQL_LEVEL_1_TOKEN::OP_NOT_EQUAL, pszPropertyName, NULL))
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{
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// The ')'
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*(pszLDAPQuery + *piOutputIndex) = wchRIGHT_BRACKET;
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(*piOutputIndex) ++;
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return TRUE;
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}
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else
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return FALSE;
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}
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}
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// TODO - WinMgmt should not allow this. It should check that the property type matches the property value
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// As soon as Winmgmt has fixed this bug, the next 2 lines may be deleted
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if(pValue->vt != VT_BSTR)
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return FALSE;
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// Get the parentADSI path and RDN from the ADSI Path
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IADsPathname *pADsPathName = NULL;
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BSTR strADSIPath = SysAllocString(pValue->bstrVal);
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BSTR strDN = NULL;
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BOOLEAN bRetVal = FALSE;
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HRESULT result = E_FAIL;
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if(SUCCEEDED(result = CoCreateInstance(CLSID_Pathname, NULL, CLSCTX_ALL, IID_IADsPathname, (LPVOID *)&pADsPathName)))
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{
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if(SUCCEEDED(result = pADsPathName->Set(strADSIPath, ADS_SETTYPE_FULL)))
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{
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// This gives the DN
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if(SUCCEEDED(result = pADsPathName->Retrieve(ADS_FORMAT_X500_DN, &strDN)))
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{
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// Put the property name as DistiguishedName
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wcscpy(pszLDAPQuery + *piOutputIndex, DISTINGUISHED_NAME_ATTR);
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*piOutputIndex += wcslen(DISTINGUISHED_NAME_ATTR);
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// Put the LDAP Operator
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if(iOperator == SQL_LEVEL_1_TOKEN::OP_EQUAL)
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{
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*(pszLDAPQuery + *piOutputIndex) = wchEQUAL;
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(*piOutputIndex) ++;
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}
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else
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{
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// The '!'
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*(pszLDAPQuery + *piOutputIndex) = wchNOT;
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(*piOutputIndex) ++;
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*(pszLDAPQuery + *piOutputIndex) = wchEQUAL;
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(*piOutputIndex) ++;
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}
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// Look for the special characters ( ) * and \ and escape them with a \
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LPWSTR pszEscapedValue = EscapeStringValue(strDN);
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wcscpy(pszLDAPQuery + *piOutputIndex, pszEscapedValue);
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(*piOutputIndex) += wcslen(pszEscapedValue);
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delete [] pszEscapedValue;
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SysFreeString(strDN);
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bRetVal = TRUE;
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}
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}
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pADsPathName->Release();
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}
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SysFreeString(strADSIPath);
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return bRetVal;
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}
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// Write a '('
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pszLDAPQuery[(*piOutputIndex) ++] = wchLEFT_BRACKET;
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switch(iOperator)
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{
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case SQL_LEVEL_1_TOKEN::OP_EQUAL:
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{
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// Special case where we use '*' LDAP operator
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// is NULL translates to !( x=*)
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if(pValue->vt == VT_NULL)
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{
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// The '!'
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*(pszLDAPQuery + *piOutputIndex) = wchNOT;
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(*piOutputIndex) ++;
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// The '('
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*(pszLDAPQuery + *piOutputIndex) = wchLEFT_BRACKET;
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(*piOutputIndex) ++;
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if(!TranslateExpression(pszLDAPQuery, piOutputIndex, SQL_LEVEL_1_TOKEN::OP_NOT_EQUAL, pszPropertyName, NULL))
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return FALSE;
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// The ')'
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*(pszLDAPQuery + *piOutputIndex) = wchRIGHT_BRACKET;
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(*piOutputIndex) ++;
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break;
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}
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else
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{
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// Followthru
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}
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}
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case SQL_LEVEL_1_TOKEN::OP_EQUALorGREATERTHAN:
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case SQL_LEVEL_1_TOKEN::OP_EQUALorLESSTHAN:
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{
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// Get the LDAP name of the property
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LPWSTR pszLDAPName = CLDAPHelper::UnmangleWBEMNameToLDAP(pszPropertyName);
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wcscpy(pszLDAPQuery + *piOutputIndex, pszLDAPName);
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*piOutputIndex += wcslen(pszLDAPName);
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delete [] pszLDAPName;
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// Put the LDAP Operator
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if(iOperator == SQL_LEVEL_1_TOKEN::OP_EQUAL)
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{
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*(pszLDAPQuery + *piOutputIndex) = wchEQUAL;
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(*piOutputIndex) ++;
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}
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else if(iOperator == SQL_LEVEL_1_TOKEN::OP_EQUALorGREATERTHAN)
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{
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wcscpy(pszLDAPQuery + *piOutputIndex, pszGE);
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*piOutputIndex += 2;
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}
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else
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{
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wcscpy(pszLDAPQuery + *piOutputIndex, pszLE);
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*piOutputIndex += 2;
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}
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// Put the value of the property
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if(!TranslateValueToLDAP(pszLDAPQuery, piOutputIndex, pValue))
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return FALSE;
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}
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break;
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case SQL_LEVEL_1_TOKEN::OP_NOT_EQUAL:
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{
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// Special case for use of '*'
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if(pValue == NULL || pValue->vt == VT_NULL)
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{
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// Get the LDAP name of the property
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LPWSTR pszLDAPName = CLDAPHelper::UnmangleWBEMNameToLDAP(pszPropertyName);
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wcscpy(pszLDAPQuery + *piOutputIndex, pszLDAPName);
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*piOutputIndex += wcslen(pszLDAPName);
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delete [] pszLDAPName;
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*(pszLDAPQuery + *piOutputIndex) = wchEQUAL;
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(*piOutputIndex) ++;
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*(pszLDAPQuery + *piOutputIndex) = wchSTAR;
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(*piOutputIndex) ++;
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}
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else
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{
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// The '!'
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*(pszLDAPQuery + *piOutputIndex) = wchNOT;
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(*piOutputIndex) ++;
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// The '('
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*(pszLDAPQuery + *piOutputIndex) = wchLEFT_BRACKET;
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(*piOutputIndex) ++;
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if(TranslateExpression(pszLDAPQuery, piOutputIndex, SQL_LEVEL_1_TOKEN::OP_EQUAL, pszPropertyName, pValue))
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{
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// The ')'
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*(pszLDAPQuery + *piOutputIndex) = wchRIGHT_BRACKET;
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(*piOutputIndex) ++;
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}
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else
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return FALSE;
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}
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}
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break;
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case SQL_LEVEL_1_TOKEN::OP_LESSTHAN:
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{
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// The '!'
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*(pszLDAPQuery + *piOutputIndex) = wchNOT;
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(*piOutputIndex) ++;
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// The '('
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*(pszLDAPQuery + *piOutputIndex) = wchLEFT_BRACKET;
|
||
|
|
(*piOutputIndex) ++;
|
||
|
|
|
||
|
|
if(TranslateExpression(pszLDAPQuery, piOutputIndex, SQL_LEVEL_1_TOKEN::OP_EQUALorGREATERTHAN, pszPropertyName, pValue))
|
||
|
|
{
|
||
|
|
// The ')'
|
||
|
|
*(pszLDAPQuery + *piOutputIndex) = wchRIGHT_BRACKET;
|
||
|
|
(*piOutputIndex) ++;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case SQL_LEVEL_1_TOKEN::OP_GREATERTHAN:
|
||
|
|
{
|
||
|
|
// The '!'
|
||
|
|
*(pszLDAPQuery + *piOutputIndex) = wchNOT;
|
||
|
|
(*piOutputIndex) ++;
|
||
|
|
|
||
|
|
// The '('
|
||
|
|
*(pszLDAPQuery + *piOutputIndex) = wchLEFT_BRACKET;
|
||
|
|
(*piOutputIndex) ++;
|
||
|
|
|
||
|
|
if(TranslateExpression(pszLDAPQuery, piOutputIndex, SQL_LEVEL_1_TOKEN::OP_EQUALorLESSTHAN, pszPropertyName, pValue))
|
||
|
|
{
|
||
|
|
// The ')'
|
||
|
|
*(pszLDAPQuery + *piOutputIndex) = wchRIGHT_BRACKET;
|
||
|
|
(*piOutputIndex) ++;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Write a ')'
|
||
|
|
pszLDAPQuery[(*piOutputIndex) ++] = wchRIGHT_BRACKET;
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOLEAN QueryConvertor::TranslateValueToLDAP(LPWSTR pszLDAPQuery, int *piOutputIndex, VARIANT *pValue)
|
||
|
|
{
|
||
|
|
switch(pValue->vt)
|
||
|
|
{
|
||
|
|
case VT_BSTR:
|
||
|
|
{
|
||
|
|
// Look for the special characters ( ) * and \ and escape them with a \
|
||
|
|
LPWSTR pszEscapedValue = EscapeStringValue(pValue->bstrVal);
|
||
|
|
wcscpy(pszLDAPQuery + *piOutputIndex, pszEscapedValue);
|
||
|
|
(*piOutputIndex) += wcslen(pszEscapedValue);
|
||
|
|
delete [] pszEscapedValue;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case VT_I4:
|
||
|
|
{
|
||
|
|
WCHAR temp[18];
|
||
|
|
swprintf(temp, L"%d", pValue->lVal);
|
||
|
|
wcscpy(pszLDAPQuery + *piOutputIndex, temp);
|
||
|
|
(*piOutputIndex) += wcslen(temp);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case VT_BOOL:
|
||
|
|
{
|
||
|
|
if(pValue->boolVal == VARIANT_TRUE)
|
||
|
|
{
|
||
|
|
wcscpy(pszLDAPQuery + *piOutputIndex, L"TRUE");
|
||
|
|
(*piOutputIndex) += wcslen(L"TRUE");
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
wcscpy(pszLDAPQuery + *piOutputIndex, L"FALSE");
|
||
|
|
(*piOutputIndex) += wcslen(L"FALSE");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
LPWSTR QueryConvertor::EscapeStringValue(LPCWSTR pszValue)
|
||
|
|
{
|
||
|
|
// Escape the special characters in a string value in a query
|
||
|
|
LPWSTR pszRetValue = new WCHAR [wcslen(pszValue)*2 + 1];
|
||
|
|
DWORD j=0;
|
||
|
|
for(DWORD i=0; i<wcslen(pszValue); i++)
|
||
|
|
{
|
||
|
|
switch(pszValue[i])
|
||
|
|
{
|
||
|
|
case wchLEFT_BRACKET:
|
||
|
|
pszRetValue[j++] = wchBACK_SLASH;
|
||
|
|
pszRetValue[j++] = '2';
|
||
|
|
pszRetValue[j++] = '8';
|
||
|
|
break;
|
||
|
|
case wchRIGHT_BRACKET:
|
||
|
|
pszRetValue[j++] = wchBACK_SLASH;
|
||
|
|
pszRetValue[j++] = '2';
|
||
|
|
pszRetValue[j++] = '9';
|
||
|
|
break;
|
||
|
|
case wchSTAR:
|
||
|
|
pszRetValue[j++] = wchBACK_SLASH;
|
||
|
|
pszRetValue[j++] = '2';
|
||
|
|
pszRetValue[j++] = 'a';
|
||
|
|
break;
|
||
|
|
case wchBACK_SLASH:
|
||
|
|
pszRetValue[j++] = wchBACK_SLASH;
|
||
|
|
pszRetValue[j++] = '5';
|
||
|
|
pszRetValue[j++] = 'c';
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
pszRetValue[j++] = pszValue[i];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
pszRetValue[j] = NULL;
|
||
|
|
return pszRetValue;
|
||
|
|
}
|