#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

main(int argc, char *argv[])
{
	int numseats, i = 0, fd;

	fd = open("seatfile", O_RDWR);
	if (fd < 0) {
		perror("cannot open seatfile");
		exit(2);
	}


	while(read(fd, &numseats, sizeof(int)) > 0)
		printf("flight%4d: %4d seats available\n", i++, numseats);
	close(fd);
	exit(0);
}