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85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/* Utilities - Windows NT specific utilities (not in Win95)
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Copyright (C) 1994, 1995, 1996 the Free Software Foundation.
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Written 1996 by Juan Grigera<grigera@isis.unlp.edu.ar>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <windows.h>
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#include "util_win32.h"
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#include "trace_nt.h"
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/* int winnt_IsAdministrator() - Determines whether user has Administrator (root)
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priviledges.
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Return: 1 if administrator
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0 if not
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Note: Code taken from MSKbase Number: Q118626.
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To determine whether or not a user is an administrator, you need to examine
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the user's access token with GetTokenInformation(). The access token
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represents the user's privileges and the groups to which the user belongs.
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*/
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int winnt_IsAdministrator()
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{
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HANDLE hAccessToken;
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UCHAR InfoBuffer[1024];
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PTOKEN_GROUPS ptgGroups = (PTOKEN_GROUPS)InfoBuffer;
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DWORD dwInfoBufferSize;
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PSID psidAdministrators;
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SID_IDENTIFIER_AUTHORITY siaNtAuthority = SECURITY_NT_AUTHORITY;
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UINT x;
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BOOL bSuccess;
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if(!OpenProcessToken(GetCurrentProcess(),TOKEN_READ,&hAccessToken))
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return 0;
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bSuccess = GetTokenInformation(hAccessToken,TokenGroups,InfoBuffer,
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1024, &dwInfoBufferSize);
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CloseHandle(hAccessToken);
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if( !bSuccess )
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return 0;
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if(!AllocateAndInitializeSid(&siaNtAuthority, 2,
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SECURITY_BUILTIN_DOMAIN_RID,
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DOMAIN_ALIAS_RID_ADMINS,
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0, 0, 0, 0, 0, 0,
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&psidAdministrators))
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return 0;
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bSuccess = 0;
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for(x=0;x<ptgGroups->GroupCount;x++) {
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if( EqualSid(psidAdministrators, ptgGroups->Groups[x].Sid) ) {
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bSuccess = 1;
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break;
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}
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}
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FreeSid(psidAdministrators);
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return bSuccess;
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}
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int geteuid ()
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{
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if (winnt_IsAdministrator())
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return 0;
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return 1;
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}
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