*
*/
+//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;
}