1 /* ========================================================================

2 * Copyright 1988-2006 University of Washington

3 *

4 * Licensed under the Apache License, Version 2.0 (the "License");

5 * you may not use this file except in compliance with the License.

6 * You may obtain a copy of the License at

7 *

8 * http://www.apache.org/licenses/LICENSE-2.0

9 *

10 *

11 * ========================================================================

12 */

13

14 /*

15 * Program: Cygwin login

16 *

17 * Author: Mark Crispin

18 * Networks and Distributed Computing

19 * Computing & Communications

20 * University of Washington

21 * Administration Building, AG-44

22 * Seattle, WA 98195

23 * Internet: MRC@CAC.Washington.EDU

24 *

25 * Date: 1 August 1988

26 * Last Edited: 30 August 2006

27 */

28 

29 /* Log in

30 * Accepts: login passwd struct

31 * argument count

32 * argument vector

33 * Returns: T if success, NIL otherwise

34 */

35

36 long loginpw (struct passwd *pw,int argc,char *argv[])

37 {

38 uid_t uid = pw->pw_uid;

39 /* must be same user name as last checkpw() */

40 if (!(cyg_user && !strcmp (pw->pw_name,cyg_user))) return NIL;

41 /* do the ImpersonateLoggedOnUser() */

42 cygwin_set_impersonation_token (cyg_hdl);

43

44 return !(setgid (pw->pw_gid) || initgroups (cyg_user,pw->pw_gid) ||

45 setuid (uid));

46 }