blob: f79b3c8ff9093452cd71d08c79f7f62026dab7b9 [file] [log] [blame]
/* A program which sets a readable fd to have a timeout, and therefore
needs --weird-hacks=ioctl-VTIME in order to run without
blocking.
[Nb: no longer true, since the ioctl-VTIME weird hack no longer exists]
*/
#include <stdio.h>
#include <sys/ioctl.h>
#include <termio.h>
int main ( void )
{
int c, i;
int res;
struct termio tty, oldtty;
/**
** Save the old tty settings, and get rid of echo
** for the new tty settings
**/
ioctl(0, TCGETA, &oldtty);
tty = oldtty;
tty.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL);
tty.c_cc[VMIN] = 0;
tty.c_cc[VTIME] = 5;
res = ioctl(0, TCSETA, &tty);
printf("first ioctl returned %d\n", res);
/**
** Now do whatever stuff you want non-echoed
**/
i = 0;
while (i++ < 50) {
c = getchar();
printf("got %d\n", c);
}
/**
** Now reset the old settings
**/
res = ioctl(0, TCSETA, &oldtty);
printf("second ioctl returned %d\n", res);
return 0;
}