release/src/router/busybox/util-linux/rdev.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * rdev - print device node associated with a filesystem
   4  *
   5  * Copyright (c) 2008 Nuovation System Designs, LLC
   6  *   Grant Erickson <gerickson@nuovations.com>
   7  *
   8  * Licensed under GPLv2, see file LICENSE in this source tree.
   9  *
  10  */
  11
  12 #include "libbb.h"
  13
  14 int rdev_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  15 int rdev_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
  16 {
  17         char const * const root_device = find_block_device("/");
  18
  19         if (root_device != NULL) {
  20                 printf("%s /\n", root_device);
  21                 return EXIT_SUCCESS;
  22         }
  23         return EXIT_FAILURE;
  24 }