#ifndef _GETCH_H
#define _GETCH_H

#include <termios.h>
#include <unistd.h>

char getch()
{
  char buf = 0;
  struct termios old = {0};
  if (tcgetattr(0, &old) < 0)
    perror("tcsetattr()");
  old.c_lflag &= ~ICANON;
  old.c_lflag &= ~ECHO;
  old.c_cc[VMIN] = 1;
  old.c_cc[VTIME] = 0;
  if (tcsetattr(0, TCSANOW, &old) < 0)
    perror("tcsetattr ICANON");
  if (read(0, &buf, 1) < 0)
    perror ("read()");
  old.c_lflag |= ICANON;
  old.c_lflag |= ECHO;
  if (tcsetattr(0, TCSADRAIN, &old) < 0)
    perror ("tcsetattr ~ICANON");
  return (buf);
}

#endif