#include <sys/types.h>
#include <assert.h>
#include <dirent.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv)
{
	ssize_t len;
	off_t d_off, r;
	struct dirent *de;
	int dirfd;
	char buf[8192];
	char *bufp;

	d_off = atol(argv[1]);
	dirfd = open(".", O_RDONLY);
	assert(dirfd >= 0);

	r = lseek(dirfd, d_off, SEEK_SET);
	assert(r >= 0);

	len = getdirentries(dirfd, buf, 8192, NULL);
	assert(len >= 0);
	printf("len=%ld\n", len);
	bufp = &buf[0];

	while (len > 0) {
		de = (struct dirent*)(bufp);
		printf("name=%s d_reclen=%hu d_off=%ld\n",
			de->d_name, de->d_reclen, de->d_off);
		len -= de->d_reclen;
		bufp += de->d_reclen;
	}
	return (0);
}