Read the wmic or GUID

[patrocle]

Hello all coders,

I'm trying to add a way to read wmic or GUID and then use it as a string like that http://prntscr.com/nhk98b
The goal is to identify players using multiple accounts.

I found a sample but i can't compile it, i need some lib

Code

	FILE*  CommandResult = _popen("wmic csproduct get uuid", "rt"); //send the command to the cmd and return a pointer to the command result
	char   line[256]; //a buffer to read from the file
	while(fgets(line, 256, CommandResult)) printf(line); //read and print all lines one by one
	_pclose(CommandResult);

Can someone help me with a working  CB sample? Please

[hidefromkgb]

Although this is not related to C::B, I`ll try directing you to an answer.
If I get your problem right, you need to ensure only one instance of your app is running on the target machine. This is how it`s done.

Bear in mind though that this is not in any way a panacea, for sophicticated players may use additional PCs, virtual machines, diassemblers, and lots of other cool things to overcome the restriction you are trying to impose.

[patrocle]

Thank you for the reply!

If I get your problem right, you need to ensure only one instance of your app is running on the target machine. This is how it`s done.

No, its only about a UUID , nothing to do with multiple instances. About "virtual machines, diassemblers, and lots of other cool things" is fine, i don't have hackers players.

A sample will really help.

[hidefromkgb]

Okay, digging a little bit further into your code snippet I realized that your task is to uniquely identify a Windows PC.
You could`ve stated that earlier =)

Well, getting a unique Windows installation GUID can be done as follows:

Code

HKEY hKey;
WCHAR *MachineGUID[128];
DWORD dwBufferSize = sizeof(MachineGUID);
ULONG nError;

RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Cryptography", 0, KEY_READ, &hKey);
nError = RegQueryValueExW(hKey, L"MachineGuid", 0, NULL, (LPBYTE)MachineGUID, &dwBufferSize);
RegCloseKey(hkey);

if (nError == ERROR_SUCCESS) {

   /// do something with MachineGUID...

}

[patrocle]

thanks again, compiled!

now, how could i have a string with uuid?
somthing like that:

Code

string GetUUID()
{
	HKEY hKey;
	WCHAR *MachineGUID[128];
	DWORD dwBufferSize = sizeof(MachineGUID);
	ULONG nError;

	RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Cryptography", 0, KEY_READ, &hKey);
	nError = RegQueryValueExW(hKey, L"MachineGuid", 0, NULL, (LPBYTE)MachineGUID, &dwBufferSize);
	RegCloseKey(hKey);

	if (nError == ERROR_SUCCESS) {

       //do something with MachineGUID...
       //return hKey;
	}

}


// here i will use the uuid
m_RemoteSocket->PutBytes( m_GPSProtocol->SEND_GPSC_INIT3( 2, GetUUID() ) ); // verify the  uuid

[hidefromkgb]

Code

ULONG GetUUID(WCHAR *MachineGUID, DWORD *dwBufferSize) {
	HKEY hKey;
	ULONG nError;

	RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Cryptography", 0, KEY_READ, &hKey);
	nError = RegQueryValueExW(hKey, L"MachineGuid", 0, NULL, (LPBYTE)MachineGUID, dwBufferSize);
	RegCloseKey(hKey);
	return nError;
}

WCHAR MachineGUID[512];
DWORD dwBufferSize = sizeof(MachineGUID);

if (GetUUID(MachineGUID, &dwBufferSize) == ERROR_SUCCESS) {

	// convert MachineGUID from WCHAR* to string
	...

	m_RemoteSocket->PutBytes( m_GPSProtocol->SEND_GPSC_INIT3( 2, stringMachineGUID ) );
}

[patrocle]

added your code: http://prntscr.com/nhxvs9 


and i got this error: http://prntscr.com/nhxvgi

[stahta01]

Please read this FAQ and this website rules.
http://wiki.codeblocks.org/index.php?title=FAQ-Compiling_%28general%29#Q:_How_do_I_report_a_compilation_problem_on_the_forums.3F
http://forums.codeblocks.org/index.php/topic,9996.0.html

Tim S.

[hidefromkgb]

and i got this error: http://prntscr.com/nhxvgi

Of course, that`s because I don`t know which data type that SEND_GPSC_INIT3() function accepts, so I considered it to be up to you to convert…

[patrocle]

but the

Code

stringMachineGUID

is not declarated and i dont think is a string, look to be a char.

[hidefromkgb]

It`s undeclared for one simple reason: I do not know what data type SEND_GPSC_INIT3() accepts.
It is up to you to declare stringMachineGUID and give it a value converted from MachineGUID`s *WCHAR.

[patrocle]

accept string, that't i ask for string output.  *WCHAR is not accepted and the guid result is empty I give up

Thanks for your help mate.

[hidefromkgb]

Damn it. That was the first google result.

Code

std::wstring wtmp(MachineGUID);
std::string stringMachineGUID(wtmp.begin(), wtmp.end());

[patrocle]

now a real problem, guid is empty 

[stahta01]

Please read this FAQ and this website rules.
http://wiki.codeblocks.org/index.php?title=FAQ-Compiling_%28general%29#Q:_How_do_I_report_a_compilation_problem_on_the_forums.3F
http://forums.codeblocks.org/index.php/topic,9996.0.html

Tim S.