1 files changed, 364 insertions, 0 deletions
diff --git a/usr.bin/tip/libacu/t3000.c b/usr.bin/tip/libacu/t3000.c
new file mode 100644
index 000000000000..9341430787da
--- /dev/null
+++ b/usr.bin/tip/libacu/t3000.c
@@ -0,0 +1,364 @@
+/*	$OpenBSD: t3000.c,v 1.14 2006/03/17 19:17:13 moritz Exp $	*/
+/*	$NetBSD: t3000.c,v 1.5 1997/02/11 09:24:18 mrg Exp $	*/
+
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * 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. 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.
+ */
+
+/*
+ * Routines for calling up on a Telebit T3000 modem.
+ * Derived from Courier driver.
+ */
+#include "tip.h"
+
+#include <sys/ioctl.h>
+#include <stdio.h>
+
+#define	MAXRETRY	5
+
+static	int dialtimeout = 0;
+static	int connected = 0;
+static	jmp_buf timeoutbuf;
+
+static void	sigALRM(int);
+static int	t3000_swallow(char *);
+static int	t3000_connect(void);
+static int	t3000_sync(void);
+static void	t3000_write(int, char *, int);
+static void	t3000_nap(void);
+#ifdef DEBUG
+static void	t3000_verbose_read(void);
+#endif
+
+int
+t3000_dialer(char *num, char *acu)
+{
+	char *cp;
+	struct termios cntrl;
+#ifdef ACULOG
+	char line[80];
+#endif
+
+	if (boolean(value(VERBOSE)))
+		printf("Using \"%s\"\n", acu);
+
+	tcgetattr(FD, &cntrl);
+	cntrl.c_cflag |= HUPCL;
+	tcsetattr(FD, TCSANOW, &cntrl);
+	/*
+	 * 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
+	tcflush(FD, TCIOFLUSH);
+	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 (dialtimeout) {
+		(void)snprintf(line, sizeof line, "%ld second dial timeout",
+			number(value(DIALTIMEOUT)));
+		logent(value(HOST), num, "t3000", line);
+	}
+#endif
+	if (dialtimeout)
+		t3000_disconnect();
+	return (connected);
+}
+
+void
+t3000_disconnect(void)
+{
+	 /* first hang up the modem*/
+	ioctl(FD, TIOCCDTR, 0);
+	sleep(1);
+	ioctl(FD, TIOCSDTR, 0);
+	t3000_sync();				/* reset */
+	close(FD);
+}
+
+void
+t3000_abort(void)
+{
+	t3000_write(FD, "\r", 1);	/* send anything to abort the call */
+	t3000_disconnect();
+}
+
+/*ARGSUSED*/
+static void
+sigALRM(int signo)
+{
+	printf("\07timeout waiting for reply\n");
+	dialtimeout = 1;
+	longjmp(timeoutbuf, 1);
+}
+
+static int
+t3000_swallow(char *match)
+{
+	sig_t f;
+	char c;
+
+	f = signal(SIGALRM, sigALRM);
+	dialtimeout = 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(void)
+{
+	char c;
+	int nc, nl, n;
+	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));
+	dialtimeout = 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) {
+					struct termios	cntrl;
+
+					tcgetattr(FD, &cntrl);
+					cfsetospeed(&cntrl, bm->baud);
+					cfsetispeed(&cntrl, bm->baud);
+					tcsetattr(FD, TCSAFLUSH, &cntrl);
+					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
+	}
+	printf("%s\r\n", dialer_buf);
+	signal(SIGALRM, f);
+	return (0);
+}
+
+/*
+ * This convoluted piece of code attempts to get
+ * the t3000 in sync.
+ */
+static int
+t3000_sync(void)
+{
+	int already = 0;
+	int len;
+	char buf[40];
+
+	while (already++ < MAXRETRY) {
+		tcflush(FD, TCIOFLUSH);
+		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 (strchr(buf, '0') || 
+		   	   (strchr(buf, 'O') && strchr(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);
+}
+
+static void
+t3000_write(int fd, char *cp, int n)
+{
+#ifdef notdef
+	if (boolean(value(VERBOSE)))
+		write(1, cp, n);
+#endif
+	tcdrain(fd);
+	t3000_nap();
+	for ( ; n-- ; cp++) {
+		write(fd, cp, 1);
+		tcdrain(fd);
+		t3000_nap();
+	}
+}
+
+#ifdef DEBUG
+static void
+t3000_verbose_read(void)
+{
+	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
+
+/* Give the t3000 50 milliseconds between characters */
+static void
+t3000_nap(void)
+{
+	struct timespec ts;
+
+	ts.tv_sec = 0;
+	ts.tv_nsec = 50 * 1000000;
+
+	nanosleep(&ts, NULL);
+}