* Grant Erickson <gerickson@nuovations.com>
*
* Licensed under GPLv2, see file LICENSE in this source tree.
- *
*/
+//config:config RDEV
+//config: bool "rdev (1.4 kb)"
+//config: default y
+//config: help
+//config: Print the device node associated with the filesystem mounted at '/'.
+
+//applet:IF_RDEV(APPLET_NOEXEC(rdev, rdev, BB_DIR_USR_SBIN, BB_SUID_DROP, rdev))
+
+//kbuild:lib-$(CONFIG_RDEV) += rdev.o
+
+//usage:#define rdev_trivial_usage
+//usage: ""
+//usage:#define rdev_full_usage "\n\n"
+//usage: "Print the device node associated with the filesystem mounted at '/'"
+//usage:
+//usage:#define rdev_example_usage
+//usage: "$ 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)
{
- char const * const root_device = find_block_device("/");
+ const char *root_device = find_block_device("/");
- if (root_device != NULL) {
+ if (root_device) {
printf("%s /\n", root_device);
return EXIT_SUCCESS;
}