mirror of https://github.com/Icinga/icinga2.git
245 lines
7.7 KiB
C++
245 lines
7.7 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include <windows.h>
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#include <Shlwapi.h>
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#include <iostream>
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#include <wuapi.h>
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#include <wuerror.h>
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#include "thresholds.h"
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#include "boost/program_options.hpp"
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#define VERSION 1.0
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#define CRITERIA L"(IsInstalled = 0 and CategoryIDs contains '0fa1201d-4330-4fa8-8ae9-b877473b6441') or (IsInstalled = 0 and CategoryIDs contains 'E6CF1350-C01B-414D-A61F-263D14D133B4')"
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namespace po = boost::program_options;
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using std::wcout; using std::endl;
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using std::wstring; using std::cout;
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struct printInfoStruct
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{
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BOOL warn, crit;
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LONG numUpdates;
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BOOL important, reboot, careForCanRequest;
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};
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static int parseArguments(int, wchar_t **, po::variables_map&, printInfoStruct&);
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static int printOutput(const printInfoStruct&);
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static int check_update(printInfoStruct&);
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int main(int argc, wchar_t **argv)
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{
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po::variables_map vm;
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printInfoStruct printInfo = { FALSE, FALSE, 0, FALSE, FALSE, FALSE };
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int ret = parseArguments(argc, argv, vm, printInfo);
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if (ret != -1)
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return ret;
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ret = check_update(printInfo);
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if (ret != -1)
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return ret;
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return printOutput(printInfo);
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}
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int printOutput(const printInfoStruct& printInfo)
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{
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state state = OK;
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wstring output = L"UPDATE ";
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if (printInfo.important)
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state = WARNING;
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if (printInfo.reboot)
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state = CRITICAL;
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switch (state) {
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case OK:
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output.append(L"OK ");
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break;
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case WARNING:
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output.append(L"WARNING ");
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break;
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case CRITICAL:
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output.append(L"CRITICAL ");
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break;
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}
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wcout << output << printInfo.numUpdates << L"|update=" << printInfo.numUpdates << L";"
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<< printInfo.warn << L";" << printInfo.crit << L";0" << endl;
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return state;
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}
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int parseArguments(int ac, wchar_t **av, po::variables_map& vm, printInfoStruct& printInfo)
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{
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wchar_t namePath[MAX_PATH];
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GetModuleFileName(NULL, namePath, MAX_PATH);
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wchar_t *progName = PathFindFileName(namePath);
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po::options_description desc;
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desc.add_options()
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(",h", "print help message and exit")
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("help", "print verbose help and exit")
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("version,v", "print version and exit")
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("warning,w", "warn if there are important updates available")
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("critical,c", "critical if there are important updates that require a reboot")
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("possible-reboot", "treat \"update may need to reboot\" as \"update needs to reboot\"")
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;
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po::basic_command_line_parser<wchar_t> parser(ac, av);
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try {
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po::store(
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parser
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.options(desc)
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.style(
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po::command_line_style::unix_style |
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po::command_line_style::allow_long_disguise)
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.run(),
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vm);
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vm.notify();
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} catch (std::exception& e) {
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cout << e.what() << endl << desc << endl;
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return 3;
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}
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if (vm.count("h")) {
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cout << desc << endl;
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return 0;
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}
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if (vm.count("help")) {
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wcout << progName << " Help\n\tVersion: " << VERSION << endl;
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wprintf(
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L"%s is a simple program to check a machines required updates.\n"
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L"You can use the following options to define its behaviour:\n\n", progName);
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cout << desc;
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wprintf(
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L"\nAfter some time, it will then output a string like this one:\n\n"
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L"\tUPDATE WARNING 8|updates=8;1;1;0\n\n"
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L"\"UPDATE\" being the type of the check, \"WARNING\" the returned status\n"
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L"and \"8\" is the number of important updates updates.\n"
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L"The performance data is found behind the \"|\", in order:\n"
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L"returned value, warning threshold, critical threshold, minimal value and,\n"
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L"if applicable, the maximal value. Performance data will only be displayed when\n"
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L"you set at least one threshold\n\n"
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L"An update counts as important when it is part of the Security- or\n"
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L"CriticalUpdates group.\n"
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L"Consult the msdn on WSUS Classification GUIDs for more information.\n"
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L"%s' exit codes denote the following:\n"
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L" 0\tOK,\n\tNo Thresholds were broken or the programs check part was not executed\n"
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L" 1\tWARNING,\n\tThe warning, but not the critical threshold was broken\n"
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L" 2\tCRITICAL,\n\tThe critical threshold was broken\n"
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L" 3\tUNKNOWN, \n\tThe program experienced an internal or input error\n\n"
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L"%s works different from other plugins in that you do not set thresholds\n"
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L"but only activate them. Using \"-w\" triggers warning state if there are not\n"
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L"installed and non-optional updates. \"-c\" triggers critical if there are\n"
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L"non-optional updates that require a reboot.\n"
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L"The \"possible-reboot\" option is not recommended since this true for nearly\n"
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L"every update."
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, progName, progName);
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cout << endl;
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return 0;
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} if (vm.count("version")) {
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cout << "Version: " << VERSION << endl;
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return 0;
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}
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if (vm.count("warning"))
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printInfo.warn = TRUE;
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if (vm.count("critical"))
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printInfo.crit = TRUE;
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if (vm.count("possible-reboot"))
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printInfo.careForCanRequest = TRUE;
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return -1;
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}
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int check_update(printInfoStruct& printInfo)
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{
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CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
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ISearchResult *pResult;
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IUpdateSession *pSession;
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IUpdateSearcher *pSearcher;
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CoCreateInstance(CLSID_UpdateSession, NULL, CLSCTX_INPROC_SERVER, IID_IUpdateSession, (LPVOID*)&pSession);
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pSession->CreateUpdateSearcher(&pSearcher);
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/*
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IsInstalled = 0: All updates, including languagepacks and features
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BrowseOnly = 0: No features or languagepacks, security and unnamed
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BrowseOnly = 1: Nothing, broken
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RebootRequired = 1: Reboot required
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*/
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BSTR criteria = SysAllocString(CRITERIA);
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// http://msdn.microsoft.com/en-us/library/windows/desktop/aa386526%28v=vs.85%29.aspx
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// http://msdn.microsoft.com/en-us/library/ff357803%28v=vs.85%29.aspx
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if (pSearcher->Search(criteria, &pResult) != S_OK)
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goto die;
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SysFreeString(criteria);
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IUpdateCollection *pCollection;
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IUpdate *pUpdate;
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LONG updateSize;
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pResult->get_Updates(&pCollection);
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pCollection->get_Count(&updateSize);
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if (updateSize == 0)
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return -1;
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printInfo.numUpdates = updateSize;
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printInfo.important = printInfo.warn;
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if (!printInfo.crit)
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return -1;
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IInstallationBehavior *pIbehav;
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InstallationRebootBehavior updateReboot;
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for (LONG i = 0; i < updateSize; i++) {
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pCollection->get_Item(i, &pUpdate);
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pUpdate->get_InstallationBehavior(&pIbehav);
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pIbehav->get_RebootBehavior(&updateReboot);
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if (updateReboot == irbAlwaysRequiresReboot) {
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printInfo.reboot = TRUE;
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continue;
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}
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if (printInfo.careForCanRequest && updateReboot == irbCanRequestReboot)
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printInfo.reboot = TRUE;
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}
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return 0;
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die:
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if (criteria)
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SysFreeString(criteria);
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return 3;
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} |