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c++ - 如何获取 Windows 安装的更新

转载 作者:可可西里 更新时间:2023-11-01 09:19:21 32 4
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我需要在 Windows 机器上获取所有已安装的更新。我尝试了 WUA API,但结果与我在控制面板 - 已安装的更新中看到的不同。我的代码返回 321 更新,而在控制面板中我看到 508。这是我的代码:

IUpdateSearcher* updateSearcher = NULL;
IUpdateSession* updateSession = NULL;
IUpdateCollection* updateList = NULL;
ISearchResult* results = NULL;
IUpdate* updateItem = NULL;
BSTR criteria = NULL;
LONG updateSize = 0;
HRESULT hr;

if ((hr = CoInitialize(NULL)) != S_OK)
{
return -1;
}
if ((hr = CoCreateInstance(CLSID_UpdateSession, NULL, CLSCTX_INPROC_SERVER, IID_IUpdateSession, (LPVOID*)&updateSession)) != S_OK)
{
return -1;
}
if ((hr = updateSession->CreateUpdateSearcher(&updateSearcher)) != S_OK)
{
return -1;
}
if ((hr = updateSearcher->put_ServerSelection(ssWindowsUpdate)) != S_OK)
{
return -1;
}

criteria = SysAllocString(L"IsInstalled=1 or IsInstalled=0 or IsHidden=1 or IsPresent=1");
if ((hr = updateSearcher->Search(criteria, &results)) == S_OK)
{
std::wcout << L"[*]Successfully completed search for updates on this host" << std::endl;
}
else
{
std::wcout << L"[-]Failed to search for updates" << std::endl;
return -1;
}

results->get_Updates(&updateList);
updateList->get_Count(&updateSize);
if (updateSize == 0)
{
std::wcout << L"[-]No updates available for this host" << std::endl;
CoUninitialize();
return 0;
}
std::set<std::wstring> KBs;
for (LONG i = 0; i < updateSize; i++)
{
IStringCollection *KBCollection;
LONG KBsSize = 0;
updateList->get_Item(i, &updateItem);
updateItem->get_KBArticleIDs(&KBCollection);
KBCollection->get_Count(&KBsSize);

for (LONG i = 0; i < KBsSize; i++)
{
BSTR KBValue;
KBCollection->get_Item(i, &KBValue);
std::wstring ws(KBValue, SysStringLen(KBValue));
KBs.insert(ws);
}
}


if ((hr = updateSearcher->put_ServerSelection(ssOthers)) != S_OK)
{
return -1;
}
BSTR serviceID = SysAllocString(L"7971f918-a847-4430-9279-4a52d1efe18d");

if ((hr = updateSearcher->put_ServiceID(serviceID)) != S_OK)
{
return -1;
}

hr = updateSearcher->Search(criteria, &results);
if ((hr = updateSearcher->Search(criteria, &results)) == S_OK)
{
std::wcout << L"[*]Successfully completed search for updates on this host" << std::endl;
}
else
{
std::wcout << L"[-]Failed to search for updates" << std::endl;
}

results->get_Updates(&updateList);
updateList->get_Count(&updateSize);
if (updateSize == 0)
{
std::wcout << L"[-]No updates available for this host" << std::endl;
CoUninitialize();
return 0;
}
for (LONG i = 0; i < updateSize; i++)
{
IStringCollection *KBCollection;
LONG KBsSize = 0;
updateList->get_Item(i, &updateItem);
updateItem->get_KBArticleIDs(&KBCollection);
KBCollection->get_Count(&KBsSize);

for (LONG i = 0; i < KBsSize; i++)
{
BSTR KBValue;
KBCollection->get_Item(i, &KBValue);
KBs.insert(KBValue);
}
}

SysFreeString(criteria);
SysFreeString(serviceID);

CoUninitialize();

std::wcout << KBs.size() << std::endl;

谁能解释一下我怎样才能获得所有更新?

最佳答案

WUA API 仅列出通过 Windows 更新服务安装的更新。

要列出其他类型的更新,您可以使用 Windows Installer API ,具体来说:

关于c++ - 如何获取 Windows 安装的更新,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44183716/

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