void
t_new (void)
{
int i = 0, j = 0;
struct tcpclient *x = NULL;
for (j = 0; j < MAXTCP; ++j)
if (!t[j].active)
break;
if (j >= MAXTCP)
{
j = 0;
for (i = 1; i < MAXTCP; ++i)
if (taia_less (&t[i].start, &t[j].start))
j = i;
errno = error_timeout;
if (t[j].state == 0)
t_drop (j);
else
t_close (j);
}
x = t + j;
taia_now (&x->start);
x->tcp = socket_accept4 (tcp53, x->ip, &x->port);
if (x->tcp == -1)
return;
if (x->port < 1024 && x->port != 53)
{
close (x->tcp);
return;
}
if (!okclient (x->ip))
{
close (x->tcp);
return;
}
if (ndelay_on (x->tcp) == -1)
{
close(x->tcp);
return;
} /* Linux bug */
x->active = 1;
++tactive;
x->state = 1;
t_timeout (j);
if (debug_level > 2)
log_tcpopen (x->ip, x->port);
}
SrvResolver::SrvResolver(QObject *parent)
:QObject(parent)
{
d = new Private;
d->qdns = 0;
#ifndef NO_NDNS
connect(&d->ndns, SIGNAL(resultsReady()), SLOT(ndns_done()));
#endif
connect(&d->t, SIGNAL(timeout()), SLOT(t_timeout()));
stop();
}
SrvResolver::SrvResolver(QObject *parent)
:QObject(parent)
{
d = new Private(this);
d->nndns_busy = false;
connect(&d->nndns, SIGNAL(resultsReady(const QList<XMPP::NameRecord> &)), SLOT(nndns_resultsReady(const QList<XMPP::NameRecord> &)));
connect(&d->nndns, SIGNAL(error(XMPP::NameResolver::Error)), SLOT(nndns_error(XMPP::NameResolver::Error)));
#ifndef NO_NDNS
connect(&d->ndns, SIGNAL(resultsReady()), SLOT(ndns_done()));
#endif
connect(&d->t, SIGNAL(timeout()), SLOT(t_timeout()));
stop();
}
static void
doit (void)
{
struct taia stamp;
struct taia deadline;
int j = 0, r = 0, iolen = 0;
for (;;)
{
taia_now (&stamp);
taia_uint (&deadline, 120);
taia_add (&deadline, &deadline, &stamp);
iolen = 0;
udp53io = io + iolen++;
udp53io->fd = udp53;
udp53io->events = IOPAUSE_READ;
tcp53io = io + iolen++;
tcp53io->fd = tcp53;
tcp53io->events = IOPAUSE_READ;
for (j = 0; j < MAXUDP; ++j)
{
if (u[j].active)
{
u[j].io = io + iolen++;
query_io (&u[j].q, u[j].io, &deadline);
}
}
for (j = 0; j < MAXTCP; ++j)
{
if (t[j].active)
{
t[j].io = io + iolen++;
if (t[j].state == 0)
query_io (&t[j].q, t[j].io, &deadline);
else
{
if (taia_less (&t[j].timeout, &deadline))
deadline = t[j].timeout;
t[j].io->fd = t[j].tcp;
t[j].io->events = (t[j].state > 0) ?
IOPAUSE_READ : IOPAUSE_WRITE;
}
}
}
iopause (io, iolen, &deadline, &stamp);
for (j = 0; j < MAXUDP; ++j)
{
if (u[j].active)
{
r = query_get (&u[j].q, u[j].io, &stamp);
if (r == -1)
u_drop (j);
if (r == 1)
u_respond (j);
}
}
for (j = 0; j < MAXTCP; ++j)
{
if (t[j].active)
{
if (t[j].io->revents)
t_timeout (j);
if (t[j].state == 0)
{
r = query_get (&t[j].q, t[j].io, &stamp);
if (r == -1)
t_drop (j);
if (r == 1)
t_respond (j);
}
else
if (t[j].io->revents || taia_less (&t[j].timeout, &stamp))
t_rw (j);
}
}
if (udp53io && udp53io->revents)
u_new();
if (tcp53io && tcp53io->revents)
t_new();
}
}
