#include <termio.h>
#include <signal.h>
#include <stdio.h>
#include <sys/ioctl.h>

static struct termio back;

static void KeyInit()
{   
    struct termio term = back;
    
    /* Disable linebuffer and echoing */
    term.c_lflag &= ~(ICANON|ECHO);  
    /* Disable signals generated by ^C, ^Z and ^] (int,stop,quit)
     *term.c_lflag &= ~(ISIG);
     */
         
    /* Disable special handling of ^S and ^Q
     *term.c_iflag &= ~(IXON);
     */
                              
    term.c_cc[VMIN] = 1; /* 0=no block, 1=do block */
    ioctl(0, TCSETA, &term);

    /* Another way to make nonblocking:
     *  fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
     */
}

static void Resume(int c) 
{
    c=c;
    KeyInit();
}

int main(void)
{
    /* Make this signal handler so that suspending and  */
    /* resuming the program does not break the terminal */
    ioctl(0, TCGETA, &back);
    signal(SIGCONT, Resume);
    KeyInit();              
            
    printf("q lopettaa.\n");
    for(;;)
    {
        int c = getchar();
        if(c == EOF)break;
        
        printf("Nappi: '%c'\n", c);
        if(c == 'q')break;
    }
    
    ioctl(0, TCSETA, &back);
    return 0;
}