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304 lines
6.0 KiB
304 lines
6.0 KiB
/*******************************************************************
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*
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* File : dnsexts.cxx
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* Author : Eyal Schwartz
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* Copyrights : Microsoft Corp (C) 1996
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* Date : 7/14/1998
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* Description : dnsext.dll debugger extension.
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*
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* Revisions : <date> <name> <description>
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*******************************************************************/
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#ifndef DNSEXTS_CXX
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#define DNSEXTS_CXX
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// include //
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// #include <dns.h>
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#include "common.h"
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#include "dump.hxx"
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#include "util.hxx"
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#include <ntverp.h>
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#include <string.h>
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// defines //
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// types //
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// global variables //
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PNTSD_EXTENSION_APIS glpExtensionApis=NULL;
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LPSTR glpArgumentString=NULL;
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HANDLE ghCurrentProcess=NULL;
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LPVOID gCurrentAllocation=NULL;
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// prototypes //
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INT GetDumpTableIndex(LPSTR szName);
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DWORD ExceptionHandler(DWORD dwException);
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// functions //
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/*+++
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Function : DllAttach
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Description: initializes the library upon attach
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Parameters : none.
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Return :
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Remarks : none.
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---*/
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BOOL DllAttach(void)
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{
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INT i=0;
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BOOL bRet=TRUE;
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//
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// Nothing to do yet
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//
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return bRet;
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}
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/*+++
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Function : DllDetach
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Description: initializes the library upon attach
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Parameters : none.
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Return :
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Remarks : none.
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---*/
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BOOL DllDetach(void)
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{
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BOOL bRet=TRUE;
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//
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// Nothing to do yet
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//
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return bRet;
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}
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/*+++
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Function : ExceptionHandler
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Description:
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Parameters :
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Return :
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Remarks : none.
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---*/
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DWORD ExceptionHandler(DWORD dwException){
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Printf("Exception 0x%x: dnsexts exception failure\n", dwException);
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CleanMemory();
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return EXCEPTION_EXECUTE_HANDLER;
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}
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/*+++
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Function : help
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Description: dump usage
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Parameters : as specified in ntdsexts.h
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Return :
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Remarks : none.
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---*/
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PNTSD_EXTENSION_ROUTINE (help)(
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HANDLE hCurrentProcess,
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HANDLE hCurrentThread,
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DWORD dwCurrentPc,
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PNTSD_EXTENSION_APIS lpExtensionApis,
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LPSTR lpArgumentString
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)
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{
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ASSIGN_NTSDEXTS_GLOBAL(lpExtensionApis, lpArgumentString, hCurrentProcess);
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Printf("dnsexts usage (version %s):\n", VER_PRODUCTVERSION_STR);
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Printf(" help: this help screen.\n");
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Printf(" dump <DATATYPE> <ADDRESS>: dumps structure at <address> in <DATATYPE> format.\n");
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Printf("---\n");
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return 0;
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}
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/*+++
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Function : GetDumpTableIndex
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Description: Get index into dump table if the entry by that name exist
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Parameters : szName: function name to find
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Return : -1 if failed, otherwise index value
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Remarks : none.
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---*/
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INT GetDumpTableIndex(LPSTR szName)
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{
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INT i=0;
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for(i=0;i<gcbDumpTable; i++){
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if(!_stricmp(szName,gfDumpTable[i].szName)){
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return i;
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}
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}
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return -1;
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}
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/*+++
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Function : dump
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Description: dumps give data structure
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Parameters : as specified in ntdsexts.h
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Return :
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Remarks : command line gives structure name & hex value
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---*/
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PNTSD_EXTENSION_ROUTINE (dump)(
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HANDLE hCurrentProcess,
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HANDLE hCurrentThread,
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DWORD dwCurrentPc,
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PNTSD_EXTENSION_APIS lpExtensionApis,
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LPSTR lpArgumentString
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)
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{
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__try{
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INT i=0; // generic index
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//
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// make interface availabe globally
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//
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ASSIGN_NTSDEXTS_GLOBAL(lpExtensionApis, lpArgumentString, hCurrentProcess);
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DEBUG1("DEBUG: Argstring=[%s]\n", lpArgumentString);
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//
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// process argument string
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//
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//
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// Format: DATATYPE ADDRESS
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//
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LPVOID lpVoid=0x0;
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const LPSTR cDelimiters=" \t";
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LPSTR szDataType = NULL, szAddress=NULL;
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if(NULL != (szDataType = strtok(lpArgumentString, cDelimiters)) &&
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NULL != (szAddress = strtok(NULL, cDelimiters)) &&
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NULL == strtok(NULL, cDelimiters) ||
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((szDataType != NULL && szAddress == NULL && !_stricmp(szDataType,"HELP")))){
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//
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// Got all arguments
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//
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if(szAddress != NULL){
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lpVoid = (LPVOID)GetExpr(szAddress);
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}
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//
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// BUGBUG: DEBUG!
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//
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DEBUG1("DEBUG: szDataType=[%s]\n", szDataType);
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DEBUG1("DEBUG: szAddress=[%s]\n", szAddress);
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DEBUG1("DEBUG: lpVoid =[%p]\n", lpVoid);
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//
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// find in function table & call function
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//
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if(0 > (i = GetDumpTableIndex(szDataType))){
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Printf("Usage error: Cannot find function %s. Type dnsexts.dump help.\n", szDataType);
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}
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else{
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//
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// call function
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//
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BOOL bRet=TRUE;
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bRet = gfDumpTable[i].function(lpVoid);
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if(!bRet){
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Printf("Error: function %s failed\n", szDataType);
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}
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}
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}
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else{
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//
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// error
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//
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Printf("Usage error (2). Type dnsexts.dump help.\n");
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}
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} // try-except
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__except(ExceptionHandler(GetExceptionCode())){
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Printf("Aborting dump funtion\n");
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}
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return 0;
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}
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////////////////////// ENTRY POINT //////////////////////
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/*+++
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Function : DllMain
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Description: <<<DLL entry point>>>
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Parameters : standard DllMain
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Return : init success bool
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Remarks : none.
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---*/
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BOOL APIENTRY DllMain(HANDLE hModule,
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DWORD ul_reason_for_call,
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LPVOID lpReserved)
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{
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BOOL bRet = TRUE;
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switch( ul_reason_for_call ) {
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case DLL_PROCESS_ATTACH:
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bRet = DllAttach();
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break;
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case DLL_THREAD_ATTACH:
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break;
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case DLL_THREAD_DETACH:
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break;
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case DLL_PROCESS_DETACH:
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bRet = DllDetach();
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break;
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}
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return bRet;
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}
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#endif
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/******************* EOF *********************/
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