#ifdef __MSDOS__

#include <conio.h>

#else

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

#include <platon/misc/kbhit.h>

int kbhit(void)
{
	char c;
	static struct termios new_term;
	static struct termios old_term;
	static int handle;
	static int init = 0;

	fflush(stdout);

	if (! init) {
		init = 1;
		if ((handle = open("/dev/tty", O_RDWR|O_SYNC)) == -1) {
#if 0
			fputs("kbhit() ERROR: Cannot read from terminal!\n",stderr);
#endif
			return -1;
		}
		else {
			tcgetattr(handle, &old_term);
			new_term = old_term;
			new_term.c_lflag &= ~ICANON;
			new_term.c_lflag &= ~ECHO;
			new_term.c_cc[VMIN] = 0;
			new_term.c_cc[VTIME] = 1;
		}
	}

	tcsetattr(handle, TCSANOW, &new_term);

	if (read(handle, &c, 1) <= 0)
		c = 0;
	else
		ungetc(c, stdin);

	tcsetattr(handle, TCSANOW, &old_term);

	return c;
}

#endif

#if defined(SELF) || defined(SELFTEST) || defined(SELF_KBHIT)

int main(void)
{
	int c;

	while (1) {
		putchar('<');

		if (kbhit() != 0) {
			c = getchar();
			printf("\nPressed key ('z' to quit): %d [%c]\n", c, c);

			if (c == 'z')
				break;
		}
	}

	putchar('>');

	return 0;
}

#endif