#include  <stdio.h>
#include  <unistd.h>
#include  <sys/ioctl.h>
#ifndef USE_OLD_TTY
#include  <sys/tty.h>
#endif


static struct termios org_tbuf;
static struct termios set_tbuf;
#ifdef USE_OLD_TTY
static struct sgttyb org_tbuf;
static struct sgttyb set_tbuf;
#endif
static int call_flag;


int init_getch(void)
{
	if(call_flag != 0){
		return 0;
	}
	else{
		call_flag = 1;
	}


	if(ioctl(0, TIOCGETA, &org_tbuf) == -1){
		fprintf(stderr, "ioctl error!\n");
		exit(0);
	}
	if(ioctl(0, TIOCGETA, &set_tbuf) == -1){
		fprintf(stderr, "ioctl error!\n");
		exit(0);
	}

	set_tbuf.c_lflag = (set_tbuf.c_lflag & ~ICANON);

	if(ioctl(0, TIOCSETA, &set_tbuf) == -1){
		fprintf(stderr, "ioctl error!\n");
		exit(0);
	}

	return 1;

}

int getch(void)
{
/*	char buf;

	if(read(0, &buf, 1) == -1){
		return -1;
	}
	else{
		return (int)buf;
	}  */

	return getc(stdin);

}


int close_getch(void)
{
	if(call_flag == 0){
		return 0;
	}
	else{
		call_flag = 0;
	}


	if(ioctl(0, TIOCSETA, &org_tbuf) == -1){
		fprintf(stderr, "ioctl error!\n");
		exit(0);
	}
	
	return 1;

}