static void
unidialer_disconnect(void)
{
int okay, retries;
acu_flush (); /* flush any clutter */
unidialer_tty_clocal (TRUE);
/* first hang up the modem*/
ioctl (FD, TIOCCDTR, 0);
acu_nap (250);
ioctl (FD, TIOCSDTR, 0);
/*
* If AT&D2, then dropping DTR *should* just hangup the modem. But
* some modems reset anyway; also, the modem may be programmed to reset
* anyway with AT&D3. Play it safe and wait for the full reset time before
* proceeding.
*/
acu_nap (reset_delay);
if (!unidialer_waitfor_modem_ready (reset_delay))
{
#ifdef DEBUG
printf ("unidialer_disconnect: warning CTS low.\r\n");
#endif
}
/*
* If not strapped for DTR control, try to get command mode.
*/
for (retries = okay = 0; retries < MAXRETRY && !okay; retries++)
{
int timeout_value;
/* flush any clutter */
if (!acu_flush ())
{
#ifdef DEBUG
printf ("unidialer_disconnect: warning flush failed.\r\n");
#endif
}
timeout_value = escape_guard_time;
timeout_value += (timeout_value * retries / MAXRETRY);
acu_nap (timeout_value);
acu_flush (); /* flush any clutter */
unidialer_modem_cmd (FD, escape_sequence);
acu_nap (timeout_value);
unidialer_modem_cmd (FD, hangup_command);
okay = unidialer_get_okay (reset_delay);
}
if (!okay)
{
logent(value(HOST), "", modem_name, "can't hang up modem");
if (boolean(value(VERBOSE)))
printf("hang up failed\n");
}
(void) acu_flush ();
close (FD);
}
static int
unidialer_dialer(char *num, char *acu)
{
char *cp;
char dial_string [80];
#if ACULOG
char line [80];
#endif
#ifdef DEBUG
dumpmodemparms (modem_name);
#endif
if (lock_baud) {
int i;
if ((i = speed(number(value(BAUDRATE)))) == 0)
return 0;
ttysetup (i);
}
if (boolean(value(VERBOSE)))
printf("Using \"%s\"\n", acu);
acu_hupcl ();
/*
* Get in synch.
*/
if (!unidialersync()) {
badsynch:
printf("tip: can't synchronize with %s\n", modem_name);
#if ACULOG
logent(value(HOST), num, modem_name, "can't synch up");
#endif
return (0);
}
unidialer_modem_cmd (FD, echo_off_command); /* turn off echoing */
sleep(1);
#ifdef DEBUG
if (boolean(value(VERBOSE)))
unidialer_verbose_read();
#endif
acu_flush (); /* flush any clutter */
unidialer_modem_cmd (FD, init_string);
if (!unidialer_get_okay (reset_delay))
goto badsynch;
fflush (stdout);
for (cp = num; *cp; cp++)
if (*cp == '=')
*cp = ',';
(void) sprintf (dial_string, dial_command, num);
unidialer_modem_cmd (FD, dial_string);
connected = unidialer_connect ();
if (connected && hw_flow_control) {
acu_hw_flow_control (hw_flow_control);
}
#if ACULOG
if (timeout) {
sprintf(line, "%d second dial timeout",
number(value(DIALTIMEOUT)));
logent(value(HOST), num, modem_name, line);
}
#endif
if (timeout)
unidialer_disconnect ();
return (connected);
}