#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
	int fd;

	fd = open(argv[1], O_RDONLY);
	if (fd < 0) {
		perror("open()");
		exit(1);
	}

	close(fd);

	return 0;
}