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|
#ifndef CKILLPROCESSUNI_CPP
#define CKILLPROCESSUNI_CPP
#include <windows.h>
#include <tlhelp32.h>
//
// Some definitions from NTDDK and other sources
//
typedef LONG NTSTATUS;
typedef LONG KPRIORITY;
#define NT_SUCCESS(Status) ((NTSTATUS)(Status) >= 0)
#define STATUS_INFO_LENGTH_MISMATCH ((NTSTATUS)0xC0000004L)
#define SystemProcessesAndThreadsInformation 5
typedef struct _CLIENT_ID {
DWORD UniqueProcess;
DWORD UniqueThread;
} CLIENT_ID;
typedef struct _UNICODE_STRING {
USHORT Length;
USHORT MaximumLength;
PWSTR Buffer;
} UNICODE_STRING;
typedef struct _VM_COUNTERS {
SIZE_T PeakVirtualSize;
SIZE_T VirtualSize;
ULONG PageFaultCount;
SIZE_T PeakWorkingSetSize;
SIZE_T WorkingSetSize;
SIZE_T QuotaPeakPagedPoolUsage;
SIZE_T QuotaPagedPoolUsage;
SIZE_T QuotaPeakNonPagedPoolUsage;
SIZE_T QuotaNonPagedPoolUsage;
SIZE_T PagefileUsage;
SIZE_T PeakPagefileUsage;
} VM_COUNTERS;
typedef struct _SYSTEM_THREADS {
LARGE_INTEGER KernelTime;
LARGE_INTEGER UserTime;
LARGE_INTEGER CreateTime;
ULONG WaitTime;
PVOID StartAddress;
CLIENT_ID ClientId;
KPRIORITY Priority;
KPRIORITY BasePriority;
ULONG ContextSwitchCount;
LONG State;
LONG WaitReason;
} SYSTEM_THREADS, * PSYSTEM_THREADS;
// Note that the size of the SYSTEM_PROCESSES structure is
// different on NT 4 and Win2K, but we don't care about it,
// since we don't access neither IoCounters member nor
//Threads array
typedef struct _SYSTEM_PROCESSES {
ULONG NextEntryDelta;
ULONG ThreadCount;
ULONG Reserved1[6];
LARGE_INTEGER CreateTime;
LARGE_INTEGER UserTime;
LARGE_INTEGER KernelTime;
UNICODE_STRING ProcessName;
KPRIORITY BasePriority;
ULONG ProcessId;
ULONG InheritedFromProcessId;
ULONG HandleCount;
ULONG Reserved2[2];
VM_COUNTERS VmCounters;
#if _WIN32_WINNT >= 0x500
IO_COUNTERS IoCounters;
#endif
SYSTEM_THREADS Threads[1];
} SYSTEM_PROCESSES, * PSYSTEM_PROCESSES;
class CKillProcess
{
private:
//Functions loaded from Kernel32
typedef HANDLE (WINAPI *PFCreateToolhelp32Snapshot)(
DWORD dwFlags,
DWORD th32ProcessID
);
typedef BOOL (WINAPI *PFProcess32First)(
HANDLE hSnapshot,
LPPROCESSENTRY32 lppe
);
typedef BOOL (WINAPI *PFProcess32Next)(
HANDLE hSnapshot,
LPPROCESSENTRY32 lppe
);
// Native NT API Definitions
typedef NTSTATUS (WINAPI * PFZwQuerySystemInformation)
(UINT, PVOID, ULONG, PULONG);
typedef HANDLE (WINAPI* PFGetProcessHeap)(VOID);
typedef LPVOID (WINAPI* PFHeapAlloc)
(HANDLE,DWORD,SIZE_T);
typedef BOOL (WINAPI* PFHeapFree)(HANDLE,DWORD,LPVOID);
public:
CKillProcess() : FCreateToolhelp32Snapshot(NULL),
FProcess32First(NULL), FProcess32Next(NULL),
m_hKernelLib(NULL),
m_hNTLib(NULL)
{
m_hKernelLib = ::LoadLibraryA("Kernel32");
if (m_hKernelLib)
{
// Find ToolHelp functions
FCreateToolhelp32Snapshot =
(PFCreateToolhelp32Snapshot)
::GetProcAddress(m_hKernelLib,
__TEXT("CreateToolhelp32Snapshot"));
FProcess32First = (PFProcess32First)
::GetProcAddress(m_hKernelLib,
__TEXT("Process32First"));
FProcess32Next = (PFProcess32Next)
::GetProcAddress(m_hKernelLib,
__TEXT("Process32Next"));
}
if(!FCreateToolhelp32Snapshot ||
!FProcess32First || !FProcess32Next)
{ // i.e. we couldn't find the ToolHelp functions,
//so we must be on NT4. Let's load the
// undocumented one instead.
if(!m_hKernelLib)
return; // can't do anything at all without
//the kernel.
m_hNTLib = ::LoadLibraryA("ntdll.dll");
if(m_hNTLib)
{
FQuerySysInfo =
(PFZwQuerySystemInformation)
::GetProcAddress(m_hNTLib,
__TEXT("ZwQuerySystemInformation"));
// load some support funcs from the kernel
FGetProcessHeap = (PFGetProcessHeap)
::GetProcAddress(m_hKernelLib,
__TEXT("GetProcessHeap"));
FHeapAlloc = (PFHeapAlloc)
::GetProcAddress(m_hKernelLib,
__TEXT("HeapAlloc"));
FHeapFree = (PFHeapFree)
::GetProcAddress(m_hKernelLib,
__TEXT("HeapFree"));
}
}
}
~CKillProcess()
{
if(m_hKernelLib)
FreeLibrary(m_hKernelLib);
if(m_hNTLib)
FreeLibrary(m_hNTLib);
}
bool KillProcess(IN const char* pstrProcessName)
{
DWORD dwId;
HANDLE hProcess = FindProcess(pstrProcessName,
dwId);
BOOL bResult;
if(!hProcess)
return false;
// TerminateAppEnum() posts WM_CLOSE to all windows whose PID
// matches your process's.
::EnumWindows((WNDENUMPROC)
CKillProcess::TerminateAppEnum,
(LPARAM) dwId);
// Wait on the handle. If it signals, great.
//If it times out, then you kill it.
if(WaitForSingleObject(hProcess, 5000)
!=WAIT_OBJECT_0)
bResult = TerminateProcess(hProcess,0);
else
bResult = TRUE;
CloseHandle(hProcess);
return bResult == TRUE;
}
private:
HANDLE FindProcess(IN const char* pstrProcessName,
OUT DWORD& dwId)
{
if(!m_hKernelLib)
return NULL;
if(FCreateToolhelp32Snapshot && FProcess32First &&
FProcess32Next) // use toolhelpapi
return THFindProcess(pstrProcessName, dwId);
if(FQuerySysInfo && FHeapAlloc &&
FGetProcessHeap && FHeapFree) // use NT api
return NTFindProcess(pstrProcessName, dwId);
// neither one got loaded. Strange.
return NULL;
}
HANDLE THFindProcess(IN const char* pstrProcessName,
OUT DWORD& dwId)
{
HANDLE hSnapShot=NULL;
HANDLE hResult = NULL;
PROCESSENTRY32 processInfo;
char* pstrExeName;
bool bFirst = true;
::ZeroMemory(&processInfo, sizeof(PROCESSENTRY32));
processInfo.dwSize = sizeof(PROCESSENTRY32);
hSnapShot = FCreateToolhelp32Snapshot(
TH32CS_SNAPPROCESS, 0);
if(hSnapShot == INVALID_HANDLE_VALUE)
return NULL;
// ok now let's iterate with Process32Next until we
// match up the name of our process
while((bFirst ? FProcess32First(hSnapShot,
&processInfo) : FProcess32Next(hSnapShot,
&processInfo)))
{
bFirst = false;
// we need to check for path... and extract
// just the exe name
pstrExeName = strrchr(processInfo.szExeFile,
'\\');
if(!pstrExeName)
pstrExeName = processInfo.szExeFile;
else
pstrExeName++; // skip the \
// ok now compare against our process name
if(stricmp(pstrExeName, pstrProcessName) == 0)
// wee weee we found it
{
// let's get a HANDLE on it
hResult=OpenProcess(
SYNCHRONIZE|PROCESS_TERMINATE, TRUE,
processInfo.th32ProcessID);
dwId = processInfo.th32ProcessID;
break;
}
} // while(Process32Next(hSnapShot, &processInfo){
if(hSnapShot)
CloseHandle(hSnapShot);
return hResult;
}
HANDLE NTFindProcess(IN const char* pstrProcessName,
OUT DWORD& dwId)
{
HANDLE hHeap = FGetProcessHeap();
NTSTATUS Status;
ULONG cbBuffer = 0x8000;
PVOID pBuffer = NULL;
HANDLE hResult = NULL;
// it is difficult to say a priory which size of
// the buffer will be enough to retrieve all
// information, so we startwith 32K buffer and
// increase its size until we get the
// information successfully
do
{
pBuffer = HeapAlloc(hHeap, 0, cbBuffer);
if (pBuffer == NULL) {
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return NULL;
}
Status = FQuerySysInfo(
SystemProcessesAndThreadsInformation,
pBuffer, cbBuffer, NULL);
if (Status == STATUS_INFO_LENGTH_MISMATCH)
{
HeapFree(hHeap, 0, pBuffer);
cbBuffer *= 2;
}
else if (!NT_SUCCESS(Status))
{
HeapFree(hHeap, 0, pBuffer);
SetLastError(Status);
return NULL;
}
}
while (Status == STATUS_INFO_LENGTH_MISMATCH);
PSYSTEM_PROCESSES pProcesses =
(PSYSTEM_PROCESSES)pBuffer;
for (;;)
{
PCWSTR pszProcessName =
pProcesses->ProcessName.Buffer;
if (pszProcessName == NULL)
pszProcessName = L"Idle";
CHAR szProcessName[MAX_PATH];
WideCharToMultiByte(CP_ACP, 0, pszProcessName,
-1,szProcessName, MAX_PATH, NULL, NULL);
if(stricmp(szProcessName, pstrProcessName)
== 0) // found it
{
hResult=OpenProcess(
SYNCHRONIZE|PROCESS_TERMINATE, TRUE,
pProcesses->ProcessId);
dwId = pProcesses->ProcessId;
break;
}
if (pProcesses->NextEntryDelta == 0)
break;
// find the address of the next process
// structure
pProcesses = (PSYSTEM_PROCESSES)(
((LPBYTE)pProcesses)
+ pProcesses->NextEntryDelta);
}
HeapFree(hHeap, 0, pBuffer);
return hResult;
}
// callback function for window enumeration
static BOOL CALLBACK TerminateAppEnum( HWND hwnd,
LPARAM lParam )
{
DWORD dwID ;
GetWindowThreadProcessId(hwnd, &dwID) ;
if(dwID == (DWORD)lParam)
{
PostMessage(hwnd, WM_CLOSE, 0, 0) ;
}
return TRUE ;
}
HMODULE m_hNTLib;
HMODULE m_hKernelLib;
// ToolHelp related functions
PFCreateToolhelp32Snapshot FCreateToolhelp32Snapshot;
PFProcess32First FProcess32First;
PFProcess32Next FProcess32Next;
// native NT api functions
PFZwQuerySystemInformation FQuerySysInfo;
PFGetProcessHeap FGetProcessHeap;
PFHeapAlloc FHeapAlloc;
PFHeapFree FHeapFree;
};
#endif |
