*
* Copyright (C) 2000 Edward Betts <edward@debian.org>.
*
- * 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
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#include "internal.h"
-#include <stdio.h>
-#include <pwd.h>
+/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
-static const char whoami_usage[] = "whoami\n\n"
- "Print the user name associated with the current effective user id.\n"
+#include "libbb.h"
- "Same as id -un.\n";
+/* This is a NOFORK applet. Be very careful! */
-extern int whoami_main(int argc, char **argv)
+int whoami_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int whoami_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
- struct passwd *pw;
- uid_t uid;
+ if (argv[1])
+ bb_show_usage();
- if (argc > 1)
- usage(whoami_usage);
+ /* Will complain and die if username not found */
+ puts(xuid2uname(geteuid()));
- 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);
+ return fflush_all();
}