#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <termios.h>
#include <string.h>
#include <fcntl.h>
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>

int kbhit1( int stdfd );

int main()
{
	char c;
	int stdfd;
	struct termios oldtio, newtio;
	stdfd = fileno(stdin);
	printf("----\n");

	while(1)
	{
		printf( "%x", c = kbhit1( stdfd ) );
		//printf( "%x", c = getchar() );
	}

	return 0;
}


int kbhit1( int stdfd )
{
	fd_set readfs;
	struct timeval Timeout;
	unsigned char rv;
	int res;
	while(1)
	{
		printf(" loop working \n");
		FD_SET(stdfd, &readfs);
		Timeout.tv_sec = 3;
		printf( "select:%d", res = select(stdfd + 1, &readfs, NULL, NULL, &Timeout));
		if ( res < 0 ) 
		{	perror(" Error on the select");
			return -1;	}
		else if ( res > 0 )
		{	if ( FD_ISSET(stdfd,&readfs) )
			{	if ( read(stdfd,&rv,1) < 0 ) 
				{	perror( "Error on read" );
					return -1;	}
				return rv;	}
			else
				return 0;	
		}
	}
}