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New code to implement attaching

This commit is contained in:
Alain Magloire 2003-04-30 18:07:43 +00:00
parent 7c38a9e9c9
commit 411b66d335
6 changed files with 498 additions and 0 deletions

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// stdafx.cpp : source file that includes just the standard includes
// ProcList.pch will be the pre-compiled header
// stdafx.obj will contain the pre-compiled type information
#include "stdafx.h"
// TODO: reference any additional headers you need in STDAFX.H
// and not in this file

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// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//
#if !defined(AFX_STDAFX_H__CB3B970F_AA1A_4B59_9F98_DDBEA28470AF__INCLUDED_)
#define AFX_STDAFX_H__CB3B970F_AA1A_4B59_9F98_DDBEA28470AF__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// TODO: reference additional headers your program requires here
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_STDAFX_H__CB3B970F_AA1A_4B59_9F98_DDBEA28470AF__INCLUDED_)

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// ProcList.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "listtasks.h"
#include <tlhelp32.h>
#include <vdmdbg.h>
#include <iostream>
#include <iomanip>
using namespace std;
typedef struct
{
DWORD dwPID ;
PROCENUMPROC lpProc ;
DWORD lParam ;
BOOL bEnd ;
} EnumInfoStruct ;
BOOL WINAPI Enum16( DWORD dwThreadId, WORD hMod16, WORD hTask16,
PSZ pszModName, PSZ pszFileName, LPARAM lpUserDefined ) ;
BOOL CALLBACK OutProcInfo( DWORD pid, WORD, LPSTR procName, LPARAM ) ;
int main(int argc, char* argv[])
{
EnumProcs(OutProcInfo, 0);
return 0;
}
/*********************
EnumProc.cpp
*********************/
// The EnumProcs function takes a pointer to a callback function
// that will be called once per process in the system providing
// process EXE filename and process ID.
// Callback function definition:
// BOOL CALLBACK Proc( DWORD dw, LPCSTR lpstr, LPARAM lParam ) ;
//
// lpProc -- Address of callback routine.
//
// lParam -- A user-defined LPARAM value to be passed to
// the callback routine.
BOOL WINAPI EnumProcs( PROCENUMPROC lpProc, LPARAM lParam )
{
OSVERSIONINFO osver ;
HINSTANCE hInstLib ;
HINSTANCE hInstLib2 ;
HANDLE hSnapShot ;
PROCESSENTRY32 procentry ;
BOOL bFlag ;
LPDWORD lpdwPIDs ;
DWORD dwSize, dwSize2, dwIndex ;
HMODULE hMod ;
HANDLE hProcess ;
char szFileName[ MAX_PATH ] ;
EnumInfoStruct sInfo ;
// ToolHelp Function Pointers.
HANDLE (WINAPI *lpfCreateToolhelp32Snapshot)(DWORD,DWORD) ;
BOOL (WINAPI *lpfProcess32First)(HANDLE,LPPROCESSENTRY32) ;
BOOL (WINAPI *lpfProcess32Next)(HANDLE,LPPROCESSENTRY32) ;
// PSAPI Function Pointers.
BOOL (WINAPI *lpfEnumProcesses)( DWORD *, DWORD cb, DWORD * );
BOOL (WINAPI *lpfEnumProcessModules)( HANDLE, HMODULE *,
DWORD, LPDWORD );
DWORD (WINAPI *lpfGetModuleFileNameEx)( HANDLE, HMODULE,
LPTSTR, DWORD );
// VDMDBG Function Pointers.
INT (WINAPI *lpfVDMEnumTaskWOWEx)( DWORD,
TASKENUMPROCEX fp, LPARAM );
// Check to see if were running under Windows95 or
// Windows NT.
osver.dwOSVersionInfoSize = sizeof( osver ) ;
if( !GetVersionEx( &osver ) )
{
return FALSE ;
}
// If Windows NT:
if( osver.dwPlatformId == VER_PLATFORM_WIN32_NT )
{
// Load library and get the procedures explicitly. We do
// this so that we don't have to worry about modules using
// this code failing to load under Windows 95, because
// it can't resolve references to the PSAPI.DLL.
hInstLib = LoadLibraryA( "PSAPI.DLL" ) ;
if( hInstLib == NULL )
return FALSE ;
hInstLib2 = LoadLibraryA( "VDMDBG.DLL" ) ;
if( hInstLib2 == NULL )
return FALSE ;
// Get procedure addresses.
lpfEnumProcesses = (BOOL(WINAPI *)(DWORD *,DWORD,DWORD*))
GetProcAddress( hInstLib, "EnumProcesses" ) ;
lpfEnumProcessModules = (BOOL(WINAPI *)(HANDLE, HMODULE *,
DWORD, LPDWORD)) GetProcAddress( hInstLib,
"EnumProcessModules" ) ;
lpfGetModuleFileNameEx =(DWORD (WINAPI *)(HANDLE, HMODULE,
LPTSTR, DWORD )) GetProcAddress( hInstLib,
"GetModuleFileNameExA" ) ;
lpfVDMEnumTaskWOWEx =(INT(WINAPI *)( DWORD, TASKENUMPROCEX,
LPARAM))GetProcAddress( hInstLib2, "VDMEnumTaskWOWEx" );
if( lpfEnumProcesses == NULL ||
lpfEnumProcessModules == NULL ||
lpfGetModuleFileNameEx == NULL ||
lpfVDMEnumTaskWOWEx == NULL)
{
FreeLibrary( hInstLib ) ;
FreeLibrary( hInstLib2 ) ;
return FALSE ;
}
// Call the PSAPI function EnumProcesses to get all of the
// ProcID's currently in the system.
// NOTE: In the documentation, the third parameter of
// EnumProcesses is named cbNeeded, which implies that you
// can call the function once to find out how much space to
// allocate for a buffer and again to fill the buffer.
// This is not the case. The cbNeeded parameter returns
// the number of PIDs returned, so if your buffer size is
// zero cbNeeded returns zero.
// NOTE: The "HeapAlloc" loop here ensures that we
// actually allocate a buffer large enough for all the
// PIDs in the system.
dwSize2 = 256 * sizeof( DWORD ) ;
lpdwPIDs = NULL ;
do
{
if( lpdwPIDs )
{
HeapFree( GetProcessHeap(), 0, lpdwPIDs ) ;
dwSize2 *= 2 ;
}
lpdwPIDs = (LPDWORD)HeapAlloc( GetProcessHeap(), 0, dwSize2 );
if( lpdwPIDs == NULL )
{
FreeLibrary( hInstLib ) ;
FreeLibrary( hInstLib2 ) ;
return FALSE ;
}
if( !lpfEnumProcesses( lpdwPIDs, dwSize2, &dwSize ) )
{
HeapFree( GetProcessHeap(), 0, lpdwPIDs ) ;
FreeLibrary( hInstLib ) ;
FreeLibrary( hInstLib2 ) ;
return FALSE ;
}
}while( dwSize == dwSize2 ) ;
// How many ProcID's did we get?
dwSize /= sizeof( DWORD ) ;
// Loop through each ProcID.
for( dwIndex = 0 ; dwIndex < dwSize ; dwIndex++ )
{
szFileName[0] = 0 ;
// Open the process (if we can... security does not
// permit every process in the system).
hProcess = OpenProcess(
PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
FALSE, lpdwPIDs[ dwIndex ] ) ;
if( hProcess != NULL )
{
// Here we call EnumProcessModules to get only the
// first module in the process this is important,
// because this will be the .EXE module for which we
// will retrieve the full path name in a second.
if( lpfEnumProcessModules( hProcess, &hMod,
sizeof( hMod ), &dwSize2 ) )
{
// Get Full pathname:
if( !lpfGetModuleFileNameEx( hProcess, hMod,
szFileName, sizeof( szFileName ) ) )
{
szFileName[0] = 0 ;
}
}
CloseHandle( hProcess ) ;
}
// Regardless of OpenProcess success or failure, we
// still call the enum func with the ProcID.
if(!lpProc( lpdwPIDs[dwIndex], 0, szFileName, lParam))
break ;
// Did we just bump into an NTVDM?
if( _stricmp( szFileName+(strlen(szFileName)-9),
"NTVDM.EXE")==0)
{
// Fill in some info for the 16-bit enum proc.
sInfo.dwPID = lpdwPIDs[dwIndex] ;
sInfo.lpProc = lpProc ;
sInfo.lParam = lParam ;
sInfo.bEnd = FALSE ;
// Enum the 16-bit stuff.
lpfVDMEnumTaskWOWEx( lpdwPIDs[dwIndex],
(TASKENUMPROCEX) Enum16,
(LPARAM) &sInfo);
// Did our main enum func say quit?
if(sInfo.bEnd)
break ;
}
}
HeapFree( GetProcessHeap(), 0, lpdwPIDs ) ;
FreeLibrary( hInstLib2 ) ;
// If Windows 95:
}else if( osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS )
{
hInstLib = LoadLibraryA( "Kernel32.DLL" ) ;
if( hInstLib == NULL )
return FALSE ;
// Get procedure addresses.
// We are linking to these functions of Kernel32
// explicitly, because otherwise a module using
// this code would fail to load under Windows NT,
// which does not have the Toolhelp32
// functions in the Kernel 32.
lpfCreateToolhelp32Snapshot=
(HANDLE(WINAPI *)(DWORD,DWORD))
GetProcAddress( hInstLib,
"CreateToolhelp32Snapshot" ) ;
lpfProcess32First=
(BOOL(WINAPI *)(HANDLE,LPPROCESSENTRY32))
GetProcAddress( hInstLib, "Process32First" ) ;
lpfProcess32Next=
(BOOL(WINAPI *)(HANDLE,LPPROCESSENTRY32))
GetProcAddress( hInstLib, "Process32Next" ) ;
if( lpfProcess32Next == NULL ||
lpfProcess32First == NULL ||
lpfCreateToolhelp32Snapshot == NULL )
{
FreeLibrary( hInstLib ) ;
return FALSE ;
}
// Get a handle to a Toolhelp snapshot of the systems
// processes.
hSnapShot = lpfCreateToolhelp32Snapshot(
TH32CS_SNAPPROCESS, 0 ) ;
if( hSnapShot == INVALID_HANDLE_VALUE )
{
FreeLibrary( hInstLib ) ;
return FALSE ;
}
// Get the first process' information.
procentry.dwSize = sizeof(PROCESSENTRY32) ;
bFlag = lpfProcess32First( hSnapShot, &procentry ) ;
// While there are processes, keep looping.
while( bFlag )
{
// Call the enum func with the filename and ProcID.
if(lpProc( procentry.th32ProcessID, 0,
procentry.szExeFile, lParam ))
{
procentry.dwSize = sizeof(PROCESSENTRY32) ;
bFlag = lpfProcess32Next( hSnapShot, &procentry );
}else
bFlag = FALSE ;
}
}else
return FALSE ;
// Free the library.
FreeLibrary( hInstLib ) ;
return TRUE ;
}
BOOL WINAPI Enum16( DWORD dwThreadId, WORD hMod16, WORD hTask16,
PSZ pszModName, PSZ pszFileName, LPARAM lpUserDefined )
{
BOOL bRet ;
EnumInfoStruct *psInfo = (EnumInfoStruct *)lpUserDefined ;
bRet = psInfo->lpProc( psInfo->dwPID, hTask16, pszFileName,
psInfo->lParam ) ;
if(!bRet)
{
psInfo->bEnd = TRUE ;
}
return !bRet;
}
BOOL CALLBACK OutProcInfo( DWORD pid, WORD, LPSTR procName, LPARAM )
{
cout << setw(10) << pid << '\t' << procName << '\n';
return TRUE;
}

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#include <windows.h>
#ifndef __LISTTASKS_H
#define __LISTTASKS_H
typedef BOOL (CALLBACK *PROCENUMPROC)( DWORD, WORD, LPSTR,
LPARAM ) ;
BOOL WINAPI EnumProcs( PROCENUMPROC lpProc, LPARAM lParam ) ;
#endif