mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-20 07:13:56 -07:00
8a52113e60
please note: format strings must be %hs for char* arguments and %ls for wchar_t* This was SVN commit r7161.
126 lines
3.1 KiB
C++
126 lines
3.1 KiB
C++
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* wrapper for Windows Management Instrumentation
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*/
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#include "precompiled.h"
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#include "wmi.h"
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#include <wbemidl.h>
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#include "lib/module_init.h"
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#pragma comment(lib, "wbemuuid.lib")
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static IWbemServices* pSvc;
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_COM_SMARTPTR_TYPEDEF(IWbemLocator, __uuidof(IWbemLocator));
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_COM_SMARTPTR_TYPEDEF(IWbemClassObject, __uuidof(IWbemClassObject));
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_COM_SMARTPTR_TYPEDEF(IEnumWbemClassObject, __uuidof(IEnumWbemClassObject));
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static ModuleInitState initState;
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static LibError Init()
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{
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if(!ModuleShouldInitialize(&initState))
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return INFO::SKIPPED;
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HRESULT hr;
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hr = CoInitializeEx(0, COINIT_MULTITHREADED);
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if(FAILED(hr))
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WARN_RETURN(ERR::_1);
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hr = CoInitializeSecurity(0, -1, 0, 0, RPC_C_AUTHN_LEVEL_DEFAULT, RPC_C_IMP_LEVEL_IMPERSONATE, 0, EOAC_NONE, 0);
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if(FAILED(hr))
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WARN_RETURN(ERR::_2);
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{
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IWbemLocatorPtr pLoc = 0;
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hr = CoCreateInstance(CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (void**)&pLoc);
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if(FAILED(hr))
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WARN_RETURN(ERR::_3);
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hr = pLoc->ConnectServer(_bstr_t(L"ROOT\\CIMV2"), 0, 0, 0, 0, 0, 0, &pSvc);
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if(FAILED(hr))
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return ERR::_4; // NOWARN (happens if WMI service is disabled)
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}
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hr = CoSetProxyBlanket(pSvc, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, 0, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, 0, EOAC_NONE);
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if(FAILED(hr))
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WARN_RETURN(ERR::_5);
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return INFO::OK;
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}
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void wmi_Shutdown()
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{
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if(!ModuleShouldShutdown(&initState))
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return;
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pSvc->Release();
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// note: don't shut down COM because other modules may still be using it.
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//CoUninitialize();
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}
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LibError wmi_GetClass(const wchar_t* className, WmiMap& wmiMap)
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{
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RETURN_ERR(Init());
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IEnumWbemClassObjectPtr pEnum = 0;
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wchar_t query[200];
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swprintf_s(query, ARRAY_SIZE(query), L"SELECT * FROM %ls", className);
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HRESULT hr = pSvc->ExecQuery(L"WQL", _bstr_t(query), WBEM_FLAG_FORWARD_ONLY|WBEM_FLAG_RETURN_IMMEDIATELY, 0, &pEnum);
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if(FAILED(hr))
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WARN_RETURN(ERR::FAIL);
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debug_assert(pEnum);
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for(;;)
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{
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IWbemClassObjectPtr pObj = 0;
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ULONG numReturned = 0;
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hr = pEnum->Next((LONG)WBEM_INFINITE, 1, &pObj, &numReturned);
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if(FAILED(hr))
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WARN_RETURN(ERR::FAIL);
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if(numReturned == 0)
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break;
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debug_assert(pEnum);
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pObj->BeginEnumeration(WBEM_FLAG_NONSYSTEM_ONLY);
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for(;;)
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{
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BSTR name;
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VARIANT value;
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VariantInit(&value);
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if(pObj->Next(0, &name, &value, 0, 0) != WBEM_S_NO_ERROR)
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{
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SysFreeString(name);
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break;
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}
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wmiMap[name] = value;
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SysFreeString(name);
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}
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}
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return INFO::OK;
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}
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