138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/* $OpenBSD: df.c,v 1.9 2006/03/17 19:17:13 moritz Exp $ */
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/* $NetBSD: df.c,v 1.4 1995/10/29 00:49:51 pk Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)df.c 8.1 (Berkeley) 6/6/93";
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static const char rcsid[] = "$OpenBSD: df.c,v 1.9 2006/03/17 19:17:13 moritz Exp $";
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#endif
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#endif /* not lint */
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/*
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* Dial the DF02-AC or DF03-AC
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*/
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#include "tip.h"
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static jmp_buf Sjbuf;
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static int df_dialer(char *, char *, int);
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static void alrm_timeout(int);
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int
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df02_dialer(char *num, char *acu)
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{
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return (df_dialer(num, acu, 0));
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}
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int
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df03_dialer(char *num, char *acu)
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{
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return (df_dialer(num, acu, 1));
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}
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static int
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df_dialer(char *num, char *acu, int df03)
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{
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int f = FD;
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struct termios cntrl;
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int speed = 0;
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char c = '\0';
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tcgetattr(f, &cntrl);
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cntrl.c_cflag |= HUPCL;
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tcsetattr(f, TCSANOW, &cntrl);
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if (setjmp(Sjbuf)) {
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printf("connection timed out\r\n");
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df_disconnect();
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return (0);
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}
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if (boolean(value(VERBOSE)))
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printf("\ndialing...");
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fflush(stdout);
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#ifdef TIOCMSET
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if (df03) {
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int st = TIOCM_ST; /* secondary Transmit flag */
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tcgetattr(f, &cntrl);
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speed = cfgetospeed(&cntrl);
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if (speed != B1200) { /* must dial at 1200 baud */
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cfsetospeed(&cntrl, B1200);
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cfsetispeed(&cntrl, B1200);
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tcsetattr(f, TCSAFLUSH, &cntrl);
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ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */
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} else
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ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */
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}
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#endif
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signal(SIGALRM, alrm_timeout);
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alarm(5 * strlen(num) + 10);
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tcflush(f, TCIOFLUSH);
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write(f, "\001", 1);
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sleep(1);
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write(f, "\002", 1);
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write(f, num, strlen(num));
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read(f, &c, 1);
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#ifdef TIOCMSET
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if (df03 && speed != B1200) {
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cfsetospeed(&cntrl, speed);
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cfsetispeed(&cntrl, speed);
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tcsetattr(f, TCSAFLUSH, &cntrl);
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}
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#endif
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return (c == 'A');
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}
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void
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df_disconnect(void)
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{
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write(FD, "\001", 1);
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sleep(1);
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tcflush(FD, TCIOFLUSH);
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}
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void
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df_abort(void)
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{
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df_disconnect();
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}
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/*ARGSUSED*/
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static void
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alrm_timeout(int signo)
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{
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longjmp(Sjbuf, 1);
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}
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