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// sm.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <Windows.h>
#include <WbemIdl.h>
#include <iostream>
using namespace std;
bool smbios();
#define MAX_DATA 0xFA00
#define NULL 0
struct rsd
{
unsigned char smbios_major_version;
unsigned char smbios_minor_version;
unsigned int length;
unsigned char smbios_table_data[MAX_DATA];
};
int _tmain(int argc, _TCHAR* argv[])
{
smbios();
return 0;
}
bool smbios()
{
rsd t;
memset(t.smbios_table_data,0,MAX_DATA);
HRESULT result,type;
result = CoInitializeEx(0,COINIT_MULTITHREADED);
if ( result < 0)
return false;
//Obtain an initial pointer to IWbemServices interface for WMI
IWbemLocator *locator = NULL;
result = CoCreateInstance(CLSID_WbemLocator,0,CLSCTX_INPROC_SERVER,IID_IWbemLocator,(LPVOID *)&locator);
if(result < 0)
{
CoUninitialize();
return false;
}
// Connecting and obtain pointer to make IWbemServices Calls
IWbemServices* service = NULL;
result = locator->ConnectServer(_T("ROOT\\WMI"),NULL,NULL,NULL,NULL,NULL,NULL,&service);
if(result < 0)
{
locator->Release();
CoUninitialize();
}
//set the IWbemServices proxy
result = CoSetProxyBlanket(service,RPC_C_AUTHN_WINNT,RPC_C_AUTHZ_NONE,NULL,RPC_C_AUTHN_LEVEL_CALL,RPC_C_IMP_LEVEL_IMPERSONATE,NULL,EOAC_NONE);
if(result < 0)
{
service->Release();
locator->Release();
CoUninitialize();
return false;
}
IEnumWbemClassObject* enume = NULL;
result = service->CreateInstanceEnum( _T("MSSMBios_RawSMBiosTables"), NULL, NULL, &enume);
if(result < 0)
{
service->Release();
locator->Release();
CoUninitialize();
return false;
} else {
do
{
IWbemClassObject* classobject = NULL;
ULONG counter = NULL;
result = enume->Next(WBEM_INFINITE,1,&classobject,&counter);
if (result >= 0)
{
VARIANT vbd;
VariantInit(&vbd);
long type;
result = classobject->Get(_T("SmbiosMajorVersion"),0,&vbd,&type,NULL);
if (result < 0)
{
VariantClear(&vbd);
} else {
t.smbios_major_version = (unsigned char)vbd.iVal;
result = classobject->Get(_T("SMbiosMinorVersion"),0,&vbd,&type,NULL);
if ( result < 0)
{
VariantClear(&vbd);
} else {
t.smbios_minor_version = (unsigned char)vbd.iVal;
VariantInit(&vbd);
result = classobject->Get(_T("SMBiosData"),0,&vbd,&type,NULL);
if(result >=0)
{
SAFEARRAY *sarray = NULL;
sarray = V_ARRAY(&vbd);
unsigned char *data = (unsigned char*)sarray->pvData;
t.length = sarray->rgsabound[0].cElements;
if(t.length >= MAX_DATA)
{
cout << "SMBios Data Table would over flow" << endl;
service->Release();
locator->Release();
CoUninitialize();
}
memcpy(t.smbios_table_data,data,t.length);
}
}
VariantClear(&vbd);
}
}
break;
}while(result = WBEM_S_NO_ERROR);
}
service->Release();
locator->Release();
CoUninitialize();
system("PAUSE");
return true;
}
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