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| author | Erik Andersen <andersen@codepoet.org> | 2000-01-15 22:28:50 +0000 |
|---|---|---|
| committer | Erik Andersen <andersen@codepoet.org> | 2000-01-15 22:28:50 +0000 |
| commit | 3163821967821518cfa4c4315f775ec5301bb023 (patch) | |
| tree | fe0c764cb41cc3ea86c3dcd270e48fa6a1abebcd /whoami.c | |
| parent | b7cc49d992ed9a5a59261096012e0b4a811bb7f4 (diff) | |
| download | busybox-w32-3163821967821518cfa4c4315f775ec5301bb023.tar.gz busybox-w32-3163821967821518cfa4c4315f775ec5301bb023.tar.bz2 busybox-w32-3163821967821518cfa4c4315f775ec5301bb023.zip | |
Sync up busybox with the latest and greatest. This is not stuff for
the Embedix release.
-Erik
Diffstat (limited to 'whoami.c')
| -rw-r--r-- | whoami.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/whoami.c b/whoami.c new file mode 100644 index 000000000..7fd5d01b2 --- /dev/null +++ b/whoami.c | |||
| @@ -0,0 +1,44 @@ | |||
| 1 | /* | ||
| 2 | * Mini whoami implementation for busybox | ||
| 3 | * | ||
| 4 | * Copyright (C) 2000 Edward Betts <edward@debian.org>. | ||
| 5 | * | ||
| 6 | * This program is free software; you can redistribute it and/or modify | ||
| 7 | * it under the terms of the GNU General Public License as published by | ||
| 8 | * the Free Software Foundation; either version 2 of the License, or | ||
| 9 | * (at your option) any later version. | ||
| 10 | * | ||
| 11 | * This program is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU General Public License | ||
| 17 | * along with this program; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 19 | * | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "internal.h" | ||
| 23 | #include <stdio.h> | ||
| 24 | #include <pwd.h> | ||
| 25 | |||
| 26 | static const char whoami_usage[] = "whoami\n\n" | ||
| 27 | "Print the user name associated with the current effective user id.\n" | ||
| 28 | "Same as id -un.\n"; | ||
| 29 | |||
| 30 | extern int whoami_main(int argc, char **argv) { | ||
| 31 | struct passwd *pw; | ||
| 32 | uid_t uid; | ||
| 33 | |||
| 34 | if (argc > 1) usage (whoami_usage); | ||
| 35 | |||
| 36 | uid = geteuid (); | ||
| 37 | pw = getpwuid (uid); | ||
| 38 | if (pw) { | ||
| 39 | puts (pw->pw_name); | ||
| 40 | exit (TRUE); | ||
| 41 | } | ||
| 42 | fprintf (stderr, "%s: cannot find username for UID %u\n", argv[0], (unsigned) uid); | ||
| 43 | exit (FALSE); | ||
| 44 | } | ||