Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini whoami implementation for busybox |
| 4 | * |
| 5 | * Copyright (C) 2000 Edward Betts <edward@debian.org>. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | */ |
| 22 | |
Eric Andersen | 3570a34 | 2000-09-25 21:45:58 +0000 | [diff] [blame] | 23 | #include "busybox.h" |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 24 | #include <stdio.h> |
| 25 | #include <pwd.h> |
| 26 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 27 | extern int whoami_main(int argc, char **argv) |
| 28 | { |
Eric Andersen | bd193a4 | 2000-12-13 01:52:39 +0000 | [diff] [blame^] | 29 | char user[9]; |
Erik Andersen | 5afc864 | 2000-05-02 00:07:56 +0000 | [diff] [blame] | 30 | uid_t uid = geteuid(); |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 31 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 32 | if (argc > 1) |
| 33 | usage(whoami_usage); |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 34 | |
Erik Andersen | 5afc864 | 2000-05-02 00:07:56 +0000 | [diff] [blame] | 35 | my_getpwuid(user, uid); |
Eric Andersen | bd193a4 | 2000-12-13 01:52:39 +0000 | [diff] [blame^] | 36 | if (*user) { |
Erik Andersen | 5afc864 | 2000-05-02 00:07:56 +0000 | [diff] [blame] | 37 | puts(user); |
Matt Kraai | e8c55f4 | 2000-10-25 19:09:03 +0000 | [diff] [blame] | 38 | return EXIT_SUCCESS; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 39 | } |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 40 | error_msg_and_die("cannot find username for UID %u\n", (unsigned) uid); |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 41 | } |