/*
* Send IAC GA.
*/
static void
telnet_send_ga(telnet_t *tp)
{
nqueue_t *nq;
nq = tp->t_outq;
nq_putc(nq, IAC);
nq_putc(nq, GA);
telnet_enabw(tp);
}
/*
* Send IAC DONT <option>.
*/
static void
telnet_send_dont(telnet_t *tp, u_char opt)
{
nqueue_t *nq;
nq = tp->t_outq;
nq_putc(nq, IAC);
nq_putc(nq, DONT);
nq_putc(nq, opt);
telnet_enabw(tp);
}
/*
* Send IAC WILL <option>.
*/
static void
telnet_send_will(telnet_t *tp, u_char opt)
{
nqueue_t *nq;
nq = tp->t_outq;
nq_putc(nq, IAC);
nq_putc(nq, WILL);
nq_putc(nq, opt);
telnet_enabw(tp);
}
/*
* Send the contents of the canonical queue to the interactive object.
*/
static void
telnet_eol(telnet_t *tp)
{
char *cp;
if (tp->t_flags & TF_SYNCH)
return;
if (nq_full(tp->t_canq))
{
tp->t_flags &= ~TF_OVFLCANQ;
cp = "";
}
else
{
nq_putc(tp->t_canq, '\0');
cp = (char *)nq_rptr(tp->t_canq);
}
if (tp->t_flags & TF_ATTACH)
interactive_input(tp->t_ip, cp);
nq_init(tp->t_canq);
tp->t_flags &= ~TF_GA;
}
/*
* Append a character to the option queue.
*/
static void
telnet_optq_putc(telnet_t *tp, u_char c)
{
if (tp->t_flags & TF_OVFLOPTQ)
return;
if (!nq_full(tp->t_optq))
nq_putc(tp->t_optq, c);
else
tp->t_flags |= TF_OVFLOPTQ;
}
/*
* Append a character to the canonical queue.
*/
static void
telnet_canq_putc(telnet_t *tp, u_char c)
{
if (tp->t_flags & (TF_OVFLCANQ | TF_SYNCH))
return;
if (!nq_full(tp->t_canq))
{
nq_putc(tp->t_canq, c);
}
else
{
tp->t_flags |= TF_OVFLCANQ;
if (nq_avail(tp->t_outq) > 0)
{
nq_putc(tp->t_outq, BEL);
telnet_enabw(tp);
}
}
}
/*
* Send the contents of the canonical queue to the interactive object.
*/
static void
telnet_eol(telnet_t *tp)
{
if (tp->t_flags & TF_SYNCH)
return;
if (nq_full(tp->t_canq))
{
tp->t_flags &= ~TF_OVFLCANQ;
}
else
{
nq_putc(tp->t_canq, '\0');
}
tp->t_flags |= TF_INPUT;
}
