blob: 30b17cab358910fca9db7a3146c1d32a27e87a5e
| 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Mini whoami implementation for busybox |
| 4 | * |
| 5 | * Copyright (C) 2000 Edward Betts <edward@debian.org>. |
| 6 | * |
| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| 8 | */ |
| 9 | |
| 10 | /* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */ |
| 11 | |
| 12 | //usage:#define whoami_trivial_usage |
| 13 | //usage: "" |
| 14 | //usage:#define whoami_full_usage "\n\n" |
| 15 | //usage: "Print the user name associated with the current effective user id" |
| 16 | |
| 17 | #include "libbb.h" |
| 18 | |
| 19 | /* This is a NOFORK applet. Be very careful! */ |
| 20 | |
| 21 | int whoami_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| 22 | int whoami_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) |
| 23 | { |
| 24 | if (argv[1]) |
| 25 | bb_show_usage(); |
| 26 | |
| 27 | /* Will complain and die if username not found */ |
| 28 | puts(xuid2uname(geteuid())); |
| 29 | |
| 30 | return fflush_all(); |
| 31 | } |
| 32 |