#include "apue.h"#include <termios.h>intmain(void){	struct termios	term;	long			vdisable;	if (isatty(STDIN_FILENO) == 0)		err_quit("standard input is not a terminal device");	if ((vdisable = fpathconf(STDIN_FILENO, _PC_VDISABLE)) < 0)		err_quit("fpathconf error or _POSIX_VDISABLE not in effect");	if (tcgetattr(STDIN_FILENO, &term) < 0)	/* fetch tty state */		err_sys("tcgetattr error");	term.c_cc[VINTR] = vdisable;	/* disable INTR character */	term.c_cc[VEOF]  = 2;			/* EOF is Control-B */	if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &term) < 0)		err_sys("tcsetattr error");	exit(0);}