//
//This code is free to modify, use, abuse, or whatever you like. It'd be interesting though to hear what you are using it for, so shoot me an email if you use this snippet.
//These values are pulled straight from winbase.h from the platform sdk
define("LOGON32_LOGON_INTERACTIVE", 2);
define("LOGON32_LOGON_NETWORK", 3);
define("LOGON32_LOGON_BATCH", 4);
define("LOGON32_LOGON_SERVICE", 5);
define("LOGON32_PROVIDER_DEFAULT", 0);
define("LOGON32_PROVIDER_WINNT35", 1);
define("LOGON32_PROVIDER_WINNT40", 2);
define("LOGON32_PROVIDER_WINNT50", 3);
//These aren't actually in winbase.h but are accurate
define("LOGON32_DOMAIN_LOCAL", ".");
define("LOGON32_DOMAIN_ALL", 0);
if(!extension_loaded('win32api')) {
if (!dl('win32api')) {
die("Couldn't load win32api!");
}
}
function NT_Validate_User($user, $domain, $pass)
{
w32api_register_function("kernel32.dll", "LocalAlloc", "long");
w32api_register_function("kernel32.dll", "LocalFree", "long");
w32api_register_function("kernel32.dll", "CloseHandle", "bool");
w32api_register_function("advapi32.dll", "LogonUserA", "bool");
$cleanup = w32api_register_function("deref.dll", "deref", "long");
$pHandle = LocalAlloc(0, 4); //Pointer to a HANDLE
$test = LogonUserA($user,
$domain,
$pass,
LOGON32_LOGON_NETWORK,
LOGON32_PROVIDER_DEFAULT,
$pHandle);
if($test != 0)
{
return 1;
if($cleanup)
{
$handle = deref($pHandle);
CloseHandle($handle);
}
LocalFree($pHandle);
} else {
return 0;
}
}
?>
deref.dll is the following C:
__declspec(dllexport) void *deref(void **a)
{
return *a;
}