INT wmain(INT argc, WCHAR **argv)
{
po::variables_map vm;
- printInfoStruct printInfo = { false, 0, L"" };
+ printInfoStruct printInfo;
INT ret = parseArguments(argc, argv, vm, printInfo);
if (ret != -1)
return ret;
+ if (vm.count("description"));
+ printInfo.service = GetServiceByDescription(vm["service"].as<std::wstring>());
+
+ if (printInfo.service.empty()) {
+ std::wcout << "Could not find service matching description\n";
+ return 3;
+ }
+
printInfo.ServiceState = ServiceStatus(printInfo);
if (printInfo.ServiceState == -1)
return 3;
return printOutput(printInfo);
}
-INT parseArguments(INT ac, WCHAR **av, po::variables_map& vm, printInfoStruct& printInfo)
+INT parseArguments(INT ac, WCHAR **av, po::variables_map& vm, printInfoStruct& printInfo)
{
WCHAR namePath[MAX_PATH];
GetModuleFileName(NULL, namePath, MAX_PATH);
desc.add_options()
("help,h", "Print help message and exit")
("version,V", "Print version and exit")
- ("debug,d", "Verbose/Debug output")
- ("service,s", po::wvalue<std::wstring>(), "Service to check (required)")
+ ("D", "Verbose/Debug output")
+ ("service,s", po::wvalue<std::wstring>(), "Service name to check")
+ ("description,d", "Use \"service\" to match on description")
("warn,w", "Return warning (1) instead of critical (2),\n when service is not running")
;
.run(),
vm);
vm.notify();
- } catch (std::exception& e) {
+ }
+ catch (std::exception& e) {
std::cout << e.what() << '\n' << desc << '\n';
return 3;
}
return 0;
}
- if (vm.count("version")) {
+ if (vm.count("version")) {
std::cout << "Version: " << VERSION << '\n';
return 0;
- }
+ }
if (!vm.count("service")) {
- std::cout << "Missing argument: service" << '\n' << desc << '\n';
+ std::cout << "Argument \"service\" is required.\n" << desc << '\n';
return 3;
}
- if (vm.count("warn"))
- printInfo.warn = true;
-
printInfo.service = vm["service"].as<std::wstring>();
- if (vm.count("debug"))
+ if (vm.count("warn")) {
+ printInfo.warn = true;
+ }
+
+ if (vm.count("D"))
debug = TRUE;
return -1;
switch (state) {
case OK:
- std::wcout << L"SERVICE OK RUNNING | service=4;;;1;7" << '\n';
+ std::wcout << L"SERVICE \"" << printInfo.service << "\" OK RUNNING | service=4;;;1;7" << '\n';
break;
case WARNING:
- std::wcout << L"SERVICE WARNING NOT RUNNING | service=" << printInfo.ServiceState << ";;;1;7" << '\n';
+ std::wcout << L"SERVICE \"" << printInfo.service << "\"WARNING NOT RUNNING | service=" << printInfo.ServiceState << ";;;1;7" << '\n';
break;
case CRITICAL:
- std::wcout << L"SERVICE CRITICAL NOT RUNNING | service=" << printInfo.ServiceState << ";;;1;7" << '\n';
+ std::wcout << L"SERVICE \"" << printInfo.service << "\"CRITICAL NOT RUNNING | service=" << printInfo.ServiceState << ";;;1;7" << '\n';
break;
}
return state;
}
+std::wstring GetServiceByDescription(CONST std::wstring& description) {
+ SC_HANDLE hSCM = NULL;
+ LPBYTE lpBuf = NULL;
+ DWORD cbBufSize = 0;
+ DWORD lpServicesReturned = 0;
+ DWORD pcbBytesNeeded = 0;
+ DWORD lpResumeHandle = 0;;
+
+ if (debug)
+ std::wcout << L"Opening SC Manager" << '\n';
+
+ hSCM = OpenSCManager(NULL, NULL, GENERIC_READ);
+ if (hSCM == NULL)
+ goto die;
+
+ if (debug)
+ std::wcout << L"Determining initially required memory" << '\n';
+
+ EnumServicesStatus(hSCM, SERVICE_WIN32 | SERVICE_DRIVER, SERVICE_STATE_ALL, NULL, 0,
+ &pcbBytesNeeded, &lpServicesReturned, &lpResumeHandle);
+
+ /* This should always be ERROR_INSUFFICIENT_BUFFER... But for some reason it is sometimes ERROR_MORE_DATA
+ * See the MSDN on EnumServiceStatus for a glimpse of despair
+ */
+
+ if (GetLastError() != ERROR_INSUFFICIENT_BUFFER && GetLastError() != ERROR_MORE_DATA)
+ goto die;
+
+ LPENUM_SERVICE_STATUSW lpServices = reinterpret_cast<LPENUM_SERVICE_STATUSW>(new BYTE[pcbBytesNeeded]);
+
+ if (debug)
+ std::wcout << L"Requesting Service Information. Entry point: " << lpResumeHandle << '\n';
+
+ EnumServicesStatus(hSCM, SERVICE_WIN32 | SERVICE_DRIVER, SERVICE_STATE_ALL, lpServices, pcbBytesNeeded,
+ &pcbBytesNeeded, &lpServicesReturned, &lpResumeHandle);
+
+ for (int index = 0; index < lpServicesReturned; index++) {
+ LPWSTR lpCurrent = lpServices[index].lpServiceName;
+
+ if (debug) {
+ std::wcout << L"Opening Service \"" << lpServices[index].lpServiceName << L"\"\n";
+ }
+
+ SC_HANDLE hService = OpenService(hSCM, lpCurrent, SERVICE_QUERY_CONFIG);
+ if (hService == NULL)
+ goto die;
+
+ DWORD dwBytesNeeded = 0;
+ if (debug)
+ std::wcout << "Accessing config\n";
+
+ if (!QueryServiceConfig2(hService, SERVICE_CONFIG_DESCRIPTION, NULL, 0, &dwBytesNeeded) && GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+ continue;
+
+ LPSERVICE_DESCRIPTION lpsd = reinterpret_cast<LPSERVICE_DESCRIPTION>(new BYTE[dwBytesNeeded]);
+
+ if (!QueryServiceConfig2(hService, SERVICE_CONFIG_DESCRIPTION, (LPBYTE)lpsd, dwBytesNeeded, &dwBytesNeeded))
+ continue;
+
+ if (lpsd->lpDescription != NULL && lstrcmp(lpsd->lpDescription, L"") != 0) {
+ std::wstring desc(lpsd->lpDescription);
+ if (debug)
+ std::wcout << "Got description:\n" << desc << '\n';
+ size_t p = desc.find(description);
+ if (desc.find(description) != desc.npos)
+ return lpCurrent;
+ }
+ else if (debug)
+ std::wcout << "No description found\n";
+ }
+
+ CloseServiceHandle(hSCM);
+ delete[] lpServices;
+ return L"";
+
+die:
+ die();
+ if (hSCM)
+ CloseServiceHandle(hSCM);
+ if (lpServices)
+ delete[] lpServices;
+ return L"";
+}
+
DWORD ServiceStatus(CONST printInfoStruct& printInfo)
{
SC_HANDLE hSCM;
SC_HANDLE hService;
- DWORD cbBufSize;
+ DWORD cbBufSize, lpServicesReturned, pcbBytesNeeded;
+ DWORD lpResumeHandle = 0;
LPBYTE lpBuf = NULL;
if (debug)
if (hSCM == NULL)
goto die;
- if (debug)
- std::wcout << L"Getting Service Information" << '\n';
-
hService = OpenService(hSCM, printInfo.service.c_str(), SERVICE_QUERY_STATUS);
if (hService == NULL)
goto die;
return pInfo->dwCurrentState;
}
-
die:
die();
if (hSCM)
CloseServiceHandle(hSCM);
if (hService)
CloseServiceHandle(hService);
- delete [] lpBuf;
+ if (lpBuf)
+ delete [] lpBuf;
return -1;
}