#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>

int main(int argc, char *argv[])
{
	int fd;
	int ret;
	DIR *dir;
	struct dirent *ptr;

	if (argc != 2)
		errx(1, "Please specify a directory");

	dir = opendir(argv[1]);
	if (!dir)
		err(1, "Failed to open directory %s", argv[1]);

	fd = dirfd(dir);
	if (fd < 0)
		err(1, "Failed to get dirfd");

	ret = fork();
	if (ret == 0) {
		char buf[100];

		while (1)
			read(fd, buf, 100);
	} else {
		int ret2;

		while (1) {
			ret2 = lseek(fd, 0, SEEK_SET);
			if (ret2 < -1)
				err(1, "seek failed");

			while (ptr = readdir(dir))
				;
		}
	}	

	closedir(dir);
	return 0;
}