134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
/*
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* Copyright (c) 1983 The Regents of the University of California.
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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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#ifndef lint
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/*static char sccsid[] = "from: @(#)df.c 5.4 (Berkeley) 3/2/91";*/
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static char rcsid[] = "$Id: df.c,v 1.2 1993/08/01 18:06:59 mycroft Exp $";
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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 void timeout();
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df02_dialer(num, acu)
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char *num, *acu;
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{
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return (df_dialer(num, acu, 0));
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}
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df03_dialer(num, acu)
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char *num, *acu;
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{
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return (df_dialer(num, acu, 1));
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}
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df_dialer(num, acu, df03)
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char *num, *acu;
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int df03;
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{
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register int f = FD;
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struct sgttyb buf;
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int speed = 0, rw = 2;
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char c = '\0';
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ioctl(f, TIOCHPCL, 0); /* make sure it hangs up when done */
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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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ioctl(f, TIOCGETP, &buf);
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if (buf.sg_ospeed != B1200) { /* must dial at 1200 baud */
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speed = buf.sg_ospeed;
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buf.sg_ospeed = buf.sg_ispeed = B1200;
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ioctl(f, TIOCSETP, &buf);
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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, timeout);
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alarm(5 * strlen(num) + 10);
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ioctl(f, TIOCFLUSH, &rw);
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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) {
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buf.sg_ispeed = buf.sg_ospeed = speed;
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ioctl(f, TIOCSETP, &buf);
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}
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#endif
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return (c == 'A');
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}
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df_disconnect()
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{
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int rw = 2;
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write(FD, "\001", 1);
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sleep(1);
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ioctl(FD, TIOCFLUSH, &rw);
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}
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df_abort()
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{
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df_disconnect();
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}
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static void
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timeout()
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{
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longjmp(Sjbuf, 1);
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}
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