//**********************************************************************
//
// FUNCTION: GetCurrentUserAndDomain - This function looks up
// the user name and domain name for the user account
// associated with the calling thread.
//
// PARAMETERS: szUser - a buffer that receives the user name
// pcchUser - the size, in characters, of szUser
// szDomain - a buffer that receives the domain name
// pcchDomain - the size, in characters, of szDomain
//
// RETURN VALUE: TRUE if the function succeeds. Otherwise, FALSE and
// GetLastError() will return the failure reason.
//
// If either of the supplied buffers are too small,
// GetLastError() will return ERROR_INSUFFICIENT_BUFFER
// and pcchUser and pcchDomain will be adjusted to
// reflect the required buffer sizes.
//
//**********************************************************************
BOOL GetCurrentUserAndDomain(PTSTR szUser, PDWORD pcchUser,
PTSTR szDomain, PDWORD pcchDomain) {
BOOL fSuccess = FALSE;
HANDLE hToken = NULL;
PTOKEN_USER ptiUser = NULL;
DWORD cbti = 0;
SID_NAME_USE snu;
__try {
// Get the calling thread's access token.
if (!OpenThreadToken(GetCurrentThread(), TOKEN_QUERY, TRUE,
&hToken)) {
if (GetLastError() != ERROR_NO_TOKEN)
__leave;
// Retry against process token if no thread token exists.
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY,
&hToken))
__leave;
}
// Obtain the size of the user information in the token.
if (GetTokenInformation(hToken, TokenUser, NULL, 0, &cbti)) {
// Call should have failed due to zero-length buffer.
__leave;
} else {
// Call should have failed due to zero-length buffer.
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
__leave;
}
// Allocate buffer for user information in the token.
ptiUser = (PTOKEN_USER) HeapAlloc(GetProcessHeap(), 0, cbti);
if (!ptiUser)
__leave;
// Retrieve the user information from the token.
if (!GetTokenInformation(hToken, TokenUser, ptiUser, cbti, &cbti))
__leave;
// Retrieve user name and domain name based on user's SID.
if (!LookupAccountSid(NULL, ptiUser->User.Sid, szUser, pcchUser,
szDomain, pcchDomain, &snu))
__leave;
fSuccess = TRUE;
} __finally {
// Free resources.
if (hToken)
CloseHandle(hToken);
if (ptiUser)
HeapFree(GetProcessHeap(), 0, ptiUser);
}
return fSuccess;
}
Hab des Api dings hier grad gefunden, kann man vielleicht damit was anfangen.
MfG Jonny F.