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Crash!

Started by Zeblar Nagrim May 5, 2003 at 2:39 PM 14 replies 650+ views

Original Post

May 5, 2003 at 2:39 PM

This code crash the computer on windows XP:

  

#include <windows.h>

int main()
{
	HKEY hKey;
	if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\HATEREG\\", 0,
					KEY_ALL_ACCESS, &hKey) != ERROR_SUCCESS)
	RegCloseKey(hKey);

	DWORD ub;
	RegCreateKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\HATEREG\\",
		0,TEXT(""),REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, 
		NULL,&hKey,&ub); 

	return 0;
}

Why? Thanks.

Zeblar Nagrim

Author

Zeblar Nagrim

May 5, 2003 at 2:48 PM

I have written this code. It works on my computer (win2000)
but not on a friends computer (winXP).

cowsarenotevil

478

cowsarenotevil

May 5, 2003 at 2:57 PM

What is it supposed to do?

-~-The Cow of Darkness-~-

Zeblar Nagrim

Author

Zeblar Nagrim

May 5, 2003 at 3:10 PM

Nothing, just a test! Try to open a key "named "SOFTWARE\\HATEREG\\" in HKEY_LOCAL_MACHINE, then close that key and create it again.

stu_pb

May 5, 2003 at 3:13 PM

what line does it crash on.

Why do you need to call RegCloseKey if the key failed to be opened, I would assume that no memory was allocated for the hkey variable so closing it should be unnecessary. I could be wrong though, I don''t know anything about these registry functions.

Zeblar Nagrim

Author

Zeblar Nagrim

May 5, 2003 at 3:19 PM

Like I said. It''s only a example ripped from another project! What I don''t get is why this CRASH the os. Can this happen?

My friend have only executed the exe file, he have not access to the code so he can not track the error to a line.

Thanks.

stu_pb

May 5, 2003 at 3:42 PM

try creating the key manually first and then run the program again. If is doesn''t crash then the call to RegCloseKey is causing the crash since the variable hKey is NULL.