release/src/router/busybox/coreutils/whoami.c

   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 #include "libbb.h"
  13
  14 /* This is a NOFORK applet. Be very careful! */
  15
  16 int whoami_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  17 int whoami_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
  18 {
  19         if (argv[1])
  20                 bb_show_usage();
  21
  22         /* Will complain and die if username not found */
  23         puts(xuid2uname(geteuid()));
  24
  25         return fflush_all();
  26 }