* Copyright (c) 1986 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
static char sccsid
[] = "@(#)courier.c 5.1 (Berkeley) %G%";
* Routines for calling up on a Hayes Smartmodem
static jmp_buf timeoutbuf
, intbuf
;
register int connected
= 0;
if (boolean(value(VERBOSE
)))
printf("Using \"%s\"\n", acu
);
printf("can't synchronize with courier\n");
logent(value(HOST
), num
, "courier", "can't synch up");
for (cp
= num
; *cp
; cp
++)
write(FD
, num
, strlen(num
));
connected
= cour_connect();
sprintf(line
, "%d second dial timeout",
number(value(DIALTIMEOUT
)));
logent(value(HOST
), num
, "cour", line
);
write(FD
, "\rAT Z\r", 6);
printf("\07timeout waiting for reply\n");
f
= signal(SIGALRM
, sigALRM
);
if (setjmp(timeoutbuf
)) {
alarm(number(value(DIALTIMEOUT
)));
if (boolean(value(VERBOSE
)))
if (boolean(value(VERBOSE
)))
signal(SIGALRM
, SIG_DFL
);
if (cour_swallow("\r\n") == 0)
f
= signal(SIGALRM
, sigALRM
);
nc
= 0; nl
= sizeof(dialer_buf
)-1;
bzero(dialer_buf
, sizeof(dialer_buf
));
for (nc
= 0, nl
= sizeof(dialer_buf
)-1 ; nl
> 0 ; nc
++, nl
--) {
alarm(number(value(DIALTIMEOUT
)));
if (cour_swallow("\n") == 0)
if (strcmp(dialer_buf
, "RINGING") == 0) {
printf("%s\r\n", dialer_buf
);
if (strncmp(dialer_buf
, "CONNECT",
sizeof("CONNECT")-1) != 0)
for (bm
= baud_msg
; bm
; bm
++)
dialer_buf
+sizeof("CONNECT")-1) == 0) {
if (ioctl(FD
, TIOCGETP
, &sb
) < 0) {
sb
.sg_ispeed
= sb
.sg_ospeed
= bm
->baud
;
if (ioctl(FD
, TIOCSETP
, &sb
) < 0) {
if (boolean(value(VERBOSE
)))
printf("%s\r\n", dialer_buf
);
if (boolean(value(VERBOSE
)))
printf("%s\r\n", dialer_buf
);
* This convoluted piece of code attempts to get
* the courier in sync. If you don't have FIONREAD
* there are gory ways to simulate this.
* Toggle DTR to force anyone off that might have left
* the modem connected, and insure a consistent state
* If you don't have the ioctl calls to diddle directly
* with DTR, you can always try setting the baud rate to 0.
while (already
++ < MAXRETRY
) {
ioctl(FD
, TIOCFLUSH
, 0); /* flush any clutter */
write(FD
, "\rAT Z\r", 6); /* reset modem */
write(FD
, "AT E0\r", 6); /* turn off echoing */
ioctl(FD
, TIOCFLUSH
, 0); /* flush any clutter */
write(FD
, "AT C1 E0 H0 Q0 X6 V1\r", 21);
if (cour_swallow("\r\nOK\r\n")) {
write(FD
, "\rAT Z\r", 6);
if (boolean(value(VERBOSE
)))
ioctl(fd
, TIOCGETP
, &sb
);
ioctl(fd
, TIOCSETP
, &sb
);
ioctl(fd
, TIOCGETP
, &sb
);
ioctl(fd
, TIOCSETP
, &sb
);
if (!boolean(value(VERBOSE
)))
if (ioctl(FD
, FIONREAD
, &n
) < 0)
if (read(FD
, buf
, n
) != n
)
* Code stolen from /usr/src/lib/libc/gen/sleep.c
#define mask(s) (1<<((s)-1))
vec.sv_handler = a; vec.sv_mask = vec.sv_onstack = 0
static napms
= 50; /* Give the courier 50 milliseconds between characters */
struct itimerval itv
, oitv
;
register struct itimerval
*itp
= &itv
;
timerclear(&itp
->it_interval
);
timerclear(&itp
->it_value
);
if (setitimer(ITIMER_REAL
, itp
, &oitv
) < 0)
omask
= sigblock(mask(SIGALRM
));
itp
->it_value
.tv_sec
= napms
/1000;
itp
->it_value
.tv_usec
= ((napms
%1000)*1000);
(void) sigvec(SIGALRM
, &vec
, &ovec
);
(void) setitimer(ITIMER_REAL
, itp
, (struct itimerval
*)0);
sigpause(omask
&~ mask(SIGALRM
));
(void) sigvec(SIGALRM
, &ovec
, (struct sigvec
*)0);
(void) setitimer(ITIMER_REAL
, &oitv
, (struct itimerval
*)0);
(void) sigsetmask(omask
);