[Solved]Is it possible for a console program, to detect if being run
as 'su'?!?
lazarus / 32-Linux

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cdbc · 2024-08-21 11:24

Hi
Is there any way, a console program can detect if it's being run as
'superuser'?
If so, how?
This question is mainly about Linux, but could be interesting to about
winders too...
Regards Benny

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Zvoni · 2024-08-21 11:28

Maybe here?
https://serverfault.com/questions/568627/can-a-program-tell-it-is-
being-run-under-sudo

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cdbc · 2024-08-21 11:50

Hi
Thanks @Zvoni 
...and the answer is: Code: Pascal  [Select][+][-]window.onload =
function(){var x1 = document.getElementById("main_content_section");
if (x1) { var x = document.getElementsByClassName("geshi");for (var i
= 0; i uses ..., baseunix;  ...  IsRoot:= (FpGetuid = 0);  
... Regards Benny

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myisjwj · 2024-09-14 01:26

https://www.cnblogs.com/jwjss/p/17914594.html

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Thaddy · 2024-09-14 04:53

Windows is a bit more cumbersome:Code: Pascal
 [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i {$mode
objfpc}uses windows; function IsRunningAsAdmin: Boolean;var  hToken:
THandle = 0;  pElevation: TOKEN_ELEVATION;  dwSize: DWORD =
SizeOf(TOKEN_ELEVATION);begin  Result := False;  if
OpenProcessToken(GetCurrentProcess, TOKEN_QUERY, hToken) then    if
GetTokenInformation(hToken, TokenElevation, @pElevation, dwSize,
dwSize) then    begin        Result := pElevation.TokenIsElevated <>
0;      CloseHandle(hToken);    end;end;begin 
writeln(isrunningasadmin);end.

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marcov · 2024-09-14 09:05

Quote from: Thaddy on September 14, 2024, 06:53:44 amWindows is a bit
more cumbersome:Code: Pascal  [Select][+][-]window.onload =
function(){var x1 = document.getElementById("main_content_section");
if (x1) { var x = document.getElementsByClassName("geshi");for (var i
= 0; i [/quote] No it is not. [code=pascal]uses winutils; begin 
result:=IsWindowsAdmin();end;

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Thaddy · 2024-09-14 09:32

Maybe, but my code is much more concise than the convoluted code in
winutils.
Has also less dependencies.
It is also a straight port from C on msdn.

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Kays · 2024-09-14 09:38

You should not “detect” whether your console program is su’d, but
simply access the resources that require elevated privileges.
Specifically Linux has capabilities(7) that allow non‑root users to
perform certain administrative tasks, so testing for a zero UID may
give false negatives. Or it just may happen that the file permissions
mode is very liberal, so being root isn’t required at all.