#define _XOPEN_SOURCE 500
#include <ftw.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>

static int
display_info(const char *fpath, const struct stat *sb,
             int tflag, struct FTW *ftwbuf)
{
    printf("%s\n", fpath);
    return 0;
}

int
main(int argc, char *argv[])
{
    int flags = FTW_PHYS;
    if (nftw((argc < 2) ? "." : argv[1], display_info, 20, flags) == -1) {
        perror("nftw");
        exit(EXIT_FAILURE);
    }
    exit(EXIT_SUCCESS);
}