我编写了一个使用c ++的wmi程序来查询不在我的域中且不属于任何域的远程PC。建立连接，查询成功运行。但是枚举中的Next方法返回S_FALSE和ureturn = 0.除了与win32_process和win32_perfFormattedData_PerfProc_Process等进程细节相关外，所有查询都能正常工作。
这是我的代码
#define _WIN32_DCOM
#include <iostream>
using namespace std;
#include <comdef.h>
#include <Wbemidl.h>
# pragma comment(lib, "wbemuuid.lib")
int main(int argc, char **argv)
{
HRESULT hres;
// Step 1: --------------------------------------------------
// Initialize COM. ------------------------------------------
hres = CoInitializeEx(0, COINIT_MULTITHREADED);
if (FAILED(hres))
{
cout << "Failed to initialize COM library. Error code = 0x"
<< hex << hres << endl;
return 1; // Program has failed.
}
// Step 2: --------------------------------------------------
// Set general COM security levels --------------------------
// Note: If you are using Windows 2000, you need to specify -
// the default authentication credentials for a user by using
// a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
// parameter of CoInitializeSecurity ------------------------
hres = CoInitializeSecurity(
NULL,
-1, // COM authentication
NULL, // Authentication services
NULL, // Reserved
RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication
RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
NULL, // Authentication info
EOAC_NONE, // Additional capabilities
NULL // Reserved
);
if (FAILED(hres))
{
cout << "Failed to initialize security. Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}
// Step 3: ---------------------------------------------------
// Obtain the initial locator to WMI -------------------------
IWbemLocator *pLoc = NULL;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *) &pLoc);
if (FAILED(hres))
{
cout << "Failed to create IWbemLocator object."
<< " Err code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}
// Step 4: -----------------------------------------------------
// Connect to WMI through the IWbemLocator::ConnectServer method
// Get the user name and password for the remote computer
//TCHAR pszName[100] = L"Administrator";
//TCHAR pszPwd[100] = L"magnaquest@02";
TCHAR pszName[100] = L"Ankit";
TCHAR pszPwd[100] = L"magnaquest@02";
// NOTE: The value for pszDom will depend whether you are
// using a domain credential or a local machine account.
// Specify the NETBIOS name of the domain if the credential
// is for a domain user. For local machine account, specify
// the NETBIOS name of the remote machine
TCHAR pszDom[100] = {0};
BOOL fSave;
DWORD dwErr;
// Connect to the remote root\cimv2 namespace
// and obtain pointer pSvc to make IWbemServices calls.
//---------------------------------------------------------
// change the computerName and domain
// strings below to the full computer name and domain
// of the remote computer
IWbemServices* pSvc = NULL;
hres = pLoc->ConnectServer(
//_bstr_t(L"\\\\WIN-F0E3MR4HILN\\root\\cimv2"),
_bstr_t(L"\\\\Ankit-PC\\root\\cimv2"),
_bstr_t(pszName), // User name
_bstr_t(pszPwd), // User password
_bstr_t(L"MS_409"), // Locale
NULL, // Security flags
_bstr_t(L"ntlmdomain:DomainOrMachine"), // Authority
0, // Context object
&pSvc // IWbemServices proxy
);
if (FAILED(hres))
{
cout << "Could not connect. Error code = 0x"
<< hex << hres << endl;
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
cout << "Connected to ROOT\\CIMV2 WMI namespace" << endl;
// Step 5: --------------------------------------------------
// Set security levels on a WMI connection ------------------
COAUTHIDENTITY cID;
cID.User = (USHORT*)&pszName;
cID.UserLength = lstrlen(pszName); //bstrUsername.length();
cID.Password = (USHORT*)&pszPwd;
cID.PasswordLength = lstrlen(pszPwd); //bstrPassword.length();
cID.Domain = (USHORT*)&pszDom;
cID.DomainLength = lstrlen(pszDom); // bstrDomain.length();
cID.Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
hres = CoSetProxyBlanket(
pSvc, // Indicates the proxy to set
RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx
RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
&cID, // client identity
EOAC_NONE // proxy capabilities
);
if (FAILED(hres))
{
cout << "Could not set proxy blanket. Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 6: --------------------------------------------------
// Use the IWbemServices pointer to make requests of WMI ----
// For example, get the name of the operating system
IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_Process WHERE IDProcess = '2472'"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
cout << "Query for Logical Disk failed."
<< " Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
//
// Must set the security on the enumerator interface as well
// or you will received an access denied error
//
hres = CoSetProxyBlanket(
pEnumerator, // Indicates the proxy to set
RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx
RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
&cID, // client identity
EOAC_NONE // proxy capabilities
);
if (FAILED(hres))
{
cout << "Could not set proxy blanket. Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// When you have finished using the credentials,
// erase them from memory.
SecureZeroMemory(pszName, sizeof(pszName));
SecureZeroMemory(pszPwd, sizeof(pszPwd));
SecureZeroMemory(pszDom, sizeof(pszDom));
// Step 7: -------------------------------------------------
// Get the data from the query in step 6 -------------------
IWbemClassObject *pclsObj;
ULONG uReturn = 0;
while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);
if(0 == uReturn)
{
break;
}
VARIANT vtProp;
// Get the value of the Name property
hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);
wcout << " Name : " << vtProp.bstrVal << endl;
VariantClear(&vtProp);
}
// Cleanup
// ========
pSvc->Release();
pLoc->Release();
pEnumerator->Release();
pclsObj->Release();
CoUninitialize();
getchar();
return 0; // Program successfully completed.
}