1 /* whoami -- print effective userid
2 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
18 /* Equivalent to `id -un'. */
19 /* Written by Richard Mlynarik. */
22 #include <sys/types.h>
31 register struct passwd *pw;
36 fprintf (stderr, "Usage: %s\n", argv[0]);
47 fprintf (stderr,"%s: cannot find username for UID %u\n", argv[0], uid);