From 3163821967821518cfa4c4315f775ec5301bb023 Mon Sep 17 00:00:00 2001 From: Erik Andersen Date: Sat, 15 Jan 2000 22:28:50 +0000 Subject: Sync up busybox with the latest and greatest. This is not stuff for the Embedix release. -Erik --- whoami.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 whoami.c (limited to 'whoami.c') diff --git a/whoami.c b/whoami.c new file mode 100644 index 0000000..7fd5d01 --- /dev/null +++ b/whoami.c @@ -0,0 +1,44 @@ +/* + * Mini whoami implementation for busybox + * + * Copyright (C) 2000 Edward Betts . + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "internal.h" +#include +#include + +static const char whoami_usage[] = "whoami\n\n" +"Print the user name associated with the current effective user id.\n" +"Same as id -un.\n"; + +extern int whoami_main(int argc, char **argv) { + struct passwd *pw; + uid_t uid; + + if (argc > 1) usage (whoami_usage); + + uid = geteuid (); + pw = getpwuid (uid); + if (pw) { + puts (pw->pw_name); + exit (TRUE); + } + fprintf (stderr, "%s: cannot find username for UID %u\n", argv[0], (unsigned) uid); + exit (FALSE); +} -- cgit v1.1