plugins/org.eclipse.epp.installer.core/library/sys.c

#include "os.h"

#ifdef _WIN32
#include <windows.h>
#endif /* _WIN32 */


#ifndef NO_SystemReboot
JNIEXPORT jboolean JNICALL OS_NATIVE(SystemReboot)
	(JNIEnv *env, jclass that )
{
#ifdef _WIN32
	HANDLE hToken; 
	TOKEN_PRIVILEGES tkp; 
  
	if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) 
		return FALSE;
 
	LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid); 
	tkp.PrivilegeCount = 1;  // one privilege to set    
	tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 
	
	AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0); 
	// Cannot test the return value of AdjustTokenPrivileges. 
	if (GetLastError() != ERROR_SUCCESS)
		return FALSE;
		
	SetProcessShutdownParameters(0x100/*Application reserved last shutdown range*/,0);		
	return ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0);
	
#else /* _WIN32 */

	return FALSE;
	
#endif /* _WIN32 */

}
#endif

JNIEXPORT jboolean JNICALL OS_NATIVE(IsUserAdmin)
		(JNIEnv *env, jclass that )
{
#ifdef _WIN32
		/*++ 
Routine Description: This routine returns TRUE if the caller's process 
is a member of the Administrators local group. Caller is NOT expected 
to be impersonating anyone and is expected to be able to open its own 
process and process token. 
Arguments: None. 
Return Value: 
   TRUE - Caller has Administrators local group. 
   FALSE - Caller does not have Administrators local group. --
*/ 
BOOL b;
SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
PSID AdministratorsGroup; 
b = AllocateAndInitializeSid(
    &NtAuthority,
    2,
    SECURITY_BUILTIN_DOMAIN_RID,
    DOMAIN_ALIAS_RID_ADMINS,
    0, 0, 0, 0, 0, 0,
    &AdministratorsGroup); 
if(b) 
{
    if (!CheckTokenMembership( NULL, AdministratorsGroup, &b)) 
    {
         b = FALSE;
    } 
    FreeSid(AdministratorsGroup); 
}

return b;

#else
	return TRUE;
#endif

}