public static IEnumerable <LoggedOnUserInfo> Get_NetLoggedon(Args_Get_NetLoggedon args = null)
{
if (args == null)
{
args = new Args_Get_NetLoggedon();
}
var LogonToken = IntPtr.Zero;
if (args.Credential != null)
{
LogonToken = InvokeUserImpersonation.Invoke_UserImpersonation(new Args_Invoke_UserImpersonation
{
Credential = args.Credential
});
}
var LoggedOns = new List <LoggedOnUserInfo>();
foreach (var Computer in args.ComputerName)
{
// declare the reference variables
var QueryLevel = 1;
var PtrInfo = IntPtr.Zero;
var EntriesRead = 0;
var TotalRead = 0;
var ResumeHandle = 0;
// get logged on user information
var Result = NativeMethods.NetWkstaUserEnum(Computer, QueryLevel, out PtrInfo, -1, out EntriesRead, out TotalRead, ref ResumeHandle);
// locate the offset of the initial intPtr
var Offset = PtrInfo.ToInt64();
// 0 = success
if ((Result == 0) && (Offset > 0))
{
// work out how much to increment the pointer by finding out the size of the structure
var Increment = Marshal.SizeOf(typeof(WKSTA_USER_INFO_1));
// parse all the result structures
for (var i = 0; (i < EntriesRead); i++)
{
// create a new int ptr at the given offset and cast the pointer as our result structure
var NewIntPtr = new System.IntPtr(Offset);
var Info = (WKSTA_USER_INFO_1)Marshal.PtrToStructure(NewIntPtr, typeof(WKSTA_USER_INFO_1));
// return all the sections of the structure - have to do it this way for V2
LoggedOns.Add(new LoggedOnUserInfo
{
UserName = Info.wkui1_username,
LogonDomain = Info.wkui1_logon_domain,
AuthDomains = Info.wkui1_oth_domains,
LogonServer = Info.wkui1_logon_server,
ComputerName = Computer
});
Offset = NewIntPtr.ToInt64();
Offset += Increment;
}
// free up the result buffer
NativeMethods.NetApiBufferFree(PtrInfo);
}
else
{
Logger.Write_Verbose($@"[Get-NetLoggedon] Error: {new System.ComponentModel.Win32Exception((int)Result).Message}");
}
}
if (LogonToken != IntPtr.Zero)
{
InvokeRevertToSelf.Invoke_RevertToSelf(LogonToken);
}
return(LoggedOns);
}
public static IEnumerable <LoggedOnUserInfo> Get_NetLoggedon(Args_Get_NetLoggedon args = null)
{
return(GetNetLoggedon.Get_NetLoggedon(args));
}
