/* vi: set sw=4 ts=4: */ /* * rdev - print device node associated with a filesystem * * Copyright (c) 2008 Nuovation System Designs, LLC * Grant Erickson <gerickson@nuovations.com> * * Licensed under GPLv2, see file LICENSE in this source tree. * */ //usage:#define rdev_trivial_usage //usage: "" //usage:#define rdev_full_usage "\n\n" //usage: "Print the device node associated with the filesystem mounted at '/'" //usage: //usage:#define rdev_example_usage //usage: "$ rdev\n" //usage: "/dev/mtdblock9 /\n" #include "libbb.h" int rdev_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int rdev_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) { const char *root_device = find_block_device("/"); if (root_device) { printf("%s /\n", root_device); return EXIT_SUCCESS; } return EXIT_FAILURE; }