file/hole.c

#include "apue.h"#include <fcntl.h>char	buf1[] = "abcdefghij";char	buf2[] = "ABCDEFGHIJ";intmain(void){	int		fd;	if ((fd = creat("file.hole", FILE_MODE)) < 0)		err_sys("creat error");	if (write(fd, buf1, 10) != 10)		err_sys("buf1 write error");	/* offset now = 10 */	if (lseek(fd, 16384, SEEK_SET) == -1)		err_sys("lseek error");	/* offset now = 16384 */	if (write(fd, buf2, 10) != 10)		err_sys("buf2 write error");	/* offset now = 16394 */	exit(0);}