[Bug 17109] LookupAccountName regression prevents Galactic Civilizations II to start

http://bugs.winehq.org/show_bug.cgi?id=17109

--- Comment #4 from Juan Lang   2009-01-24 11:48:48 ---
Created an attachment (id=18958)
 --> (http://bugs.winehq.org/attachment.cgi?id=18958)
Test case in C

I'm attaching a C version of your testcase, as not everyone will be using
Pascal.

Someone will no doubt ask for a regression test:
http://wiki.winehq.org/RegressionTesting

LookupAccountName is a stub, so it's not a real surprise it fails.  The code
path you're running into is in dlls/advapi32/security.c, lines 2620-2626:
    ret = GetUserNameW(userName, &nameLen);

if (ret && strcmpW(lpAccountName, userName) != 0)
    {
        SetLastError(ERROR_NONE_MAPPED);
        ret = FALSE;
    }

That is, the account name you're looking up isn't the user name.  Probably what
you're doing is also valid:  looking up the machine name should produce some
SID as well.  A test case demonstrating this on Windows would help.

As a workaround, you could change your machine name to match your username.
> From reading dlls/kernel32/computername.c, you ought to be able to change the

registry value ComputerName in the key
HKLM\Machine\System\CurrentControlSet\Control\ComputerName\ActiveComputerName
to match your username.