188 lines
4.2 KiB
C
188 lines
4.2 KiB
C
/*
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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. 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[] = "@(#)biz22.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#include "tip.h"
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#define DISCONNECT_CMD "\20\04" /* disconnection string */
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static void sigALRM();
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static int timeout = 0;
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static jmp_buf timeoutbuf;
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/*
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* Dial up on a BIZCOMP Model 1022 with either
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* tone dialing (mod = "V")
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* pulse dialing (mod = "W")
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*/
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static int
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biz_dialer(num, mod)
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char *num, *mod;
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{
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register int connected = 0;
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char cbuf[40];
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static int cmd(), detect();
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if (boolean(value(VERBOSE)))
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printf("\nstarting call...");
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/*
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* Disable auto-answer and configure for tone/pulse
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* dialing
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*/
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if (cmd("\02K\r")) {
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printf("can't initialize bizcomp...");
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return (0);
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}
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strcpy(cbuf, "\02.\r");
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cbuf[1] = *mod;
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if (cmd(cbuf)) {
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printf("can't set dialing mode...");
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return (0);
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}
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strcpy(cbuf, "\02D");
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strcat(cbuf, num);
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strcat(cbuf, "\r");
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write(FD, cbuf, strlen(cbuf));
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if (!detect("7\r")) {
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printf("can't get dial tone...");
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return (0);
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}
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if (boolean(value(VERBOSE)))
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printf("ringing...");
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/*
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* The reply from the BIZCOMP should be:
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* 2 \r or 7 \r failure
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* 1 \r success
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*/
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connected = detect("1\r");
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#ifdef ACULOG
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if (timeout) {
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char line[80];
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sprintf(line, "%d second dial timeout",
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number(value(DIALTIMEOUT)));
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logent(value(HOST), num, "biz1022", line);
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}
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#endif
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if (timeout)
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biz22_disconnect(); /* insurance */
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return (connected);
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}
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biz22w_dialer(num, acu)
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char *num, *acu;
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{
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return (biz_dialer(num, "W"));
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}
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biz22f_dialer(num, acu)
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char *num, *acu;
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{
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return (biz_dialer(num, "V"));
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}
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biz22_disconnect()
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{
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int rw = 2;
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write(FD, DISCONNECT_CMD, 4);
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sleep(2);
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ioctl(FD, TIOCFLUSH, &rw);
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}
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biz22_abort()
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{
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write(FD, "\02", 1);
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}
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static void
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sigALRM()
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{
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timeout = 1;
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longjmp(timeoutbuf, 1);
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}
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static int
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cmd(s)
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register char *s;
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{
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sig_t f;
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char c;
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write(FD, s, strlen(s));
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f = signal(SIGALRM, sigALRM);
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if (setjmp(timeoutbuf)) {
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biz22_abort();
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signal(SIGALRM, f);
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return (1);
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}
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alarm(number(value(DIALTIMEOUT)));
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read(FD, &c, 1);
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alarm(0);
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signal(SIGALRM, f);
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c &= 0177;
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return (c != '\r');
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}
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static int
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detect(s)
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register char *s;
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{
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sig_t f;
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char c;
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f = signal(SIGALRM, sigALRM);
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timeout = 0;
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while (*s) {
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if (setjmp(timeoutbuf)) {
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biz22_abort();
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break;
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}
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alarm(number(value(DIALTIMEOUT)));
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read(FD, &c, 1);
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alarm(0);
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c &= 0177;
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if (c != *s++)
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return (0);
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}
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signal(SIGALRM, f);
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return (timeout == 0);
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}
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