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-rw-r--r--usr.bin/tip/aculib/t3000.c408
1 files changed, 408 insertions, 0 deletions
diff --git a/usr.bin/tip/aculib/t3000.c b/usr.bin/tip/aculib/t3000.c
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+++ b/usr.bin/tip/aculib/t3000.c
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+/*
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)t3000.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ * Routines for calling up on a Telebit T3000 modem.
+ * Derived from Courier driver.
+ */
+#include "tip.h"
+#include <stdio.h>
+
+#define MAXRETRY 5
+
+static void sigALRM();
+static int timeout = 0;
+static int connected = 0;
+static jmp_buf timeoutbuf, intbuf;
+static int t3000_sync();
+
+t3000_dialer(num, acu)
+ register char *num;
+ char *acu;
+{
+ register char *cp;
+#ifdef ACULOG
+ char line[80];
+#endif
+ static int t3000_connect(), t3000_swallow();
+
+ if (boolean(value(VERBOSE)))
+ printf("Using \"%s\"\n", acu);
+
+ ioctl(FD, TIOCHPCL, 0);
+ /*
+ * Get in synch.
+ */
+ if (!t3000_sync()) {
+badsynch:
+ printf("can't synchronize with t3000\n");
+#ifdef ACULOG
+ logent(value(HOST), num, "t3000", "can't synch up");
+#endif
+ return (0);
+ }
+ t3000_write(FD, "AT E0\r", 6); /* turn off echoing */
+ sleep(1);
+#ifdef DEBUG
+ if (boolean(value(VERBOSE)))
+ t3000_verbose_read();
+#endif
+ ioctl(FD, TIOCFLUSH, 0); /* flush any clutter */
+ t3000_write(FD, "AT E0 H0 Q0 X4 V1\r", 18);
+ if (!t3000_swallow("\r\nOK\r\n"))
+ goto badsynch;
+ fflush(stdout);
+ t3000_write(FD, "AT D", 4);
+ for (cp = num; *cp; cp++)
+ if (*cp == '=')
+ *cp = ',';
+ t3000_write(FD, num, strlen(num));
+ t3000_write(FD, "\r", 1);
+ connected = t3000_connect();
+#ifdef ACULOG
+ if (timeout) {
+ sprintf(line, "%d second dial timeout",
+ number(value(DIALTIMEOUT)));
+ logent(value(HOST), num, "t3000", line);
+ }
+#endif
+ if (timeout)
+ t3000_disconnect();
+ return (connected);
+}
+
+t3000_disconnect()
+{
+ /* first hang up the modem*/
+ ioctl(FD, TIOCCDTR, 0);
+ sleep(1);
+ ioctl(FD, TIOCSDTR, 0);
+ t3000_sync(); /* reset */
+ close(FD);
+}
+
+t3000_abort()
+{
+ t3000_write(FD, "\r", 1); /* send anything to abort the call */
+ t3000_disconnect();
+}
+
+static void
+sigALRM()
+{
+ printf("\07timeout waiting for reply\n");
+ timeout = 1;
+ longjmp(timeoutbuf, 1);
+}
+
+static int
+t3000_swallow(match)
+ register char *match;
+ {
+ sig_t f;
+ char c;
+
+ f = signal(SIGALRM, sigALRM);
+ timeout = 0;
+ do {
+ if (*match =='\0') {
+ signal(SIGALRM, f);
+ return (1);
+ }
+ if (setjmp(timeoutbuf)) {
+ signal(SIGALRM, f);
+ return (0);
+ }
+ alarm(number(value(DIALTIMEOUT)));
+ read(FD, &c, 1);
+ alarm(0);
+ c &= 0177;
+#ifdef DEBUG
+ if (boolean(value(VERBOSE)))
+ putchar(c);
+#endif
+ } while (c == *match++);
+#ifdef DEBUG
+ if (boolean(value(VERBOSE)))
+ fflush(stdout);
+#endif
+ signal(SIGALRM, SIG_DFL);
+ return (0);
+}
+
+#ifndef B19200 /* XXX */
+#define B19200 EXTA
+#define B38400 EXTB
+#endif
+
+struct tbaud_msg {
+ char *msg;
+ int baud;
+ int baud2;
+} tbaud_msg[] = {
+ "", B300, 0,
+ " 1200", B1200, 0,
+ " 2400", B2400, 0,
+ " 4800", B4800, 0,
+ " 9600", B9600, 0,
+ " 14400", B19200, B9600,
+ " 19200", B19200, B9600,
+ " 38400", B38400, B9600,
+ " 57600", B38400, B9600,
+ " 7512", B9600, 0,
+ " 1275", B2400, 0,
+ " 7200", B9600, 0,
+ " 12000", B19200, B9600,
+ 0, 0, 0,
+};
+
+static int
+t3000_connect()
+{
+ char c;
+ int nc, nl, n;
+ struct sgttyb sb;
+ char dialer_buf[64];
+ struct tbaud_msg *bm;
+ sig_t f;
+
+ if (t3000_swallow("\r\n") == 0)
+ return (0);
+ f = signal(SIGALRM, sigALRM);
+again:
+ nc = 0; nl = sizeof(dialer_buf)-1;
+ bzero(dialer_buf, sizeof(dialer_buf));
+ timeout = 0;
+ for (nc = 0, nl = sizeof(dialer_buf)-1 ; nl > 0 ; nc++, nl--) {
+ if (setjmp(timeoutbuf))
+ break;
+ alarm(number(value(DIALTIMEOUT)));
+ n = read(FD, &c, 1);
+ alarm(0);
+ if (n <= 0)
+ break;
+ c &= 0x7f;
+ if (c == '\r') {
+ if (t3000_swallow("\n") == 0)
+ break;
+ if (!dialer_buf[0])
+ goto again;
+ if (strcmp(dialer_buf, "RINGING") == 0 &&
+ boolean(value(VERBOSE))) {
+#ifdef DEBUG
+ printf("%s\r\n", dialer_buf);
+#endif
+ goto again;
+ }
+ if (strncmp(dialer_buf, "CONNECT",
+ sizeof("CONNECT")-1) != 0)
+ break;
+ for (bm = tbaud_msg ; bm->msg ; bm++)
+ if (strcmp(bm->msg,
+ dialer_buf+sizeof("CONNECT")-1) == 0) {
+ if (ioctl(FD, TIOCGETP, &sb) < 0) {
+ perror("TIOCGETP");
+ goto error;
+ }
+ sb.sg_ispeed = sb.sg_ospeed = bm->baud;
+ if (ioctl(FD, TIOCSETP, &sb) < 0) {
+ if (bm->baud2) {
+ sb.sg_ispeed =
+ sb.sg_ospeed =
+ bm->baud2;
+ if (ioctl(FD,
+ TIOCSETP,
+ &sb) >= 0)
+ goto isok;
+ }
+ perror("TIOCSETP");
+ goto error;
+ }
+isok:
+ signal(SIGALRM, f);
+#ifdef DEBUG
+ if (boolean(value(VERBOSE)))
+ printf("%s\r\n", dialer_buf);
+#endif
+ return (1);
+ }
+ break;
+ }
+ dialer_buf[nc] = c;
+#ifdef notdef
+ if (boolean(value(VERBOSE)))
+ putchar(c);
+#endif
+ }
+error1:
+ printf("%s\r\n", dialer_buf);
+error:
+ signal(SIGALRM, f);
+ return (0);
+}
+
+/*
+ * This convoluted piece of code attempts to get
+ * the t3000 in sync.
+ */
+static int
+t3000_sync()
+{
+ int already = 0;
+ int len;
+ char buf[40];
+
+ while (already++ < MAXRETRY) {
+ ioctl(FD, TIOCFLUSH, 0); /* flush any clutter */
+ t3000_write(FD, "\rAT Z\r", 6); /* reset modem */
+ bzero(buf, sizeof(buf));
+ sleep(2);
+ ioctl(FD, FIONREAD, &len);
+#if 1
+if (len == 0) len = 1;
+#endif
+ if (len) {
+ len = read(FD, buf, sizeof(buf));
+#ifdef DEBUG
+ buf[len] = '\0';
+ printf("t3000_sync: (\"%s\")\n\r", buf);
+#endif
+ if (index(buf, '0') ||
+ (index(buf, 'O') && index(buf, 'K')))
+ return(1);
+ }
+ /*
+ * If not strapped for DTR control,
+ * try to get command mode.
+ */
+ sleep(1);
+ t3000_write(FD, "+++", 3);
+ sleep(1);
+ /*
+ * Toggle DTR to force anyone off that might have left
+ * the modem connected.
+ */
+ ioctl(FD, TIOCCDTR, 0);
+ sleep(1);
+ ioctl(FD, TIOCSDTR, 0);
+ }
+ t3000_write(FD, "\rAT Z\r", 6);
+ return (0);
+}
+
+t3000_write(fd, cp, n)
+int fd;
+char *cp;
+int n;
+{
+ struct sgttyb sb;
+
+#ifdef notdef
+ if (boolean(value(VERBOSE)))
+ write(1, cp, n);
+#endif
+ ioctl(fd, TIOCGETP, &sb);
+ ioctl(fd, TIOCSETP, &sb);
+ t3000_nap();
+ for ( ; n-- ; cp++) {
+ write(fd, cp, 1);
+ ioctl(fd, TIOCGETP, &sb);
+ ioctl(fd, TIOCSETP, &sb);
+ t3000_nap();
+ }
+}
+
+#ifdef DEBUG
+t3000_verbose_read()
+{
+ int n = 0;
+ char buf[BUFSIZ];
+
+ if (ioctl(FD, FIONREAD, &n) < 0)
+ return;
+ if (n <= 0)
+ return;
+ if (read(FD, buf, n) != n)
+ return;
+ write(1, buf, n);
+}
+#endif
+
+/*
+ * Code stolen from /usr/src/lib/libc/gen/sleep.c
+ */
+#define mask(s) (1<<((s)-1))
+#define setvec(vec, a) \
+ vec.sv_handler = a; vec.sv_mask = vec.sv_onstack = 0
+
+static napms = 50; /* Give the t3000 50 milliseconds between characters */
+
+static int ringring;
+
+t3000_nap()
+{
+
+ static void t3000_napx();
+ int omask;
+ struct itimerval itv, oitv;
+ register struct itimerval *itp = &itv;
+ struct sigvec vec, ovec;
+
+ timerclear(&itp->it_interval);
+ timerclear(&itp->it_value);
+ if (setitimer(ITIMER_REAL, itp, &oitv) < 0)
+ return;
+ setvec(ovec, SIG_DFL);
+ omask = sigblock(mask(SIGALRM));
+ itp->it_value.tv_sec = napms/1000;
+ itp->it_value.tv_usec = ((napms%1000)*1000);
+ setvec(vec, t3000_napx);
+ ringring = 0;
+ (void) sigvec(SIGALRM, &vec, &ovec);
+ (void) setitimer(ITIMER_REAL, itp, (struct itimerval *)0);
+ while (!ringring)
+ sigpause(omask &~ mask(SIGALRM));
+ (void) sigvec(SIGALRM, &ovec, (struct sigvec *)0);
+ (void) setitimer(ITIMER_REAL, &oitv, (struct itimerval *)0);
+ (void) sigsetmask(omask);
+}
+
+static void
+t3000_napx()
+{
+ ringring = 1;
+}
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