183 lines
4.3 KiB
C
183 lines
4.3 KiB
C
/* $NetBSD: biz22.c,v 1.13 2006/12/14 17:09:43 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1983, 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)biz22.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
__RCSID("$NetBSD: biz22.c,v 1.13 2006/12/14 17:09:43 christos Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include "tip.h"
|
|
|
|
#define DISCONNECT_CMD "\20\04" /* disconnection string */
|
|
|
|
static int btimeout = 0;
|
|
static jmp_buf timeoutbuf;
|
|
|
|
static int biz_dialer(char *, const char *);
|
|
static int cmd(const char *);
|
|
static int detect(const char *);
|
|
static void sigALRM(int);
|
|
|
|
/*
|
|
* Dial up on a BIZCOMP Model 1022 with either
|
|
* tone dialing (mod = "V")
|
|
* pulse dialing (mod = "W")
|
|
*/
|
|
static int
|
|
biz_dialer(char *num, const char *mod)
|
|
{
|
|
int connected = 0;
|
|
char cbuf[40];
|
|
|
|
if (boolean(value(VERBOSE)))
|
|
(void)printf("\nstarting call...");
|
|
/*
|
|
* Disable auto-answer and configure for tone/pulse
|
|
* dialing
|
|
*/
|
|
if (cmd("\02K\r")) {
|
|
(void)printf("can't initialize bizcomp...");
|
|
return (0);
|
|
}
|
|
(void)strncpy(cbuf, "\02.\r", sizeof(cbuf) - 1);
|
|
cbuf[1] = *mod;
|
|
if (cmd(cbuf)) {
|
|
(void)printf("can't set dialing mode...");
|
|
return (0);
|
|
}
|
|
(void)snprintf(cbuf, sizeof cbuf, "\02D%s\r", num);
|
|
(void)write(FD, cbuf, strlen(cbuf));
|
|
if (!detect("7\r")) {
|
|
(void)printf("can't get dial tone...");
|
|
return (0);
|
|
}
|
|
if (boolean(value(VERBOSE)))
|
|
(void)printf("ringing...");
|
|
/*
|
|
* The reply from the BIZCOMP should be:
|
|
* 2 \r or 7 \r failure
|
|
* 1 \r success
|
|
*/
|
|
connected = detect("1\r");
|
|
if (btimeout)
|
|
biz22_disconnect(); /* insurance */
|
|
return (connected);
|
|
}
|
|
|
|
int
|
|
/*ARGSUSED*/
|
|
biz22w_dialer(char *num, char *acu __unused)
|
|
{
|
|
|
|
return (biz_dialer(num, "W"));
|
|
}
|
|
|
|
int
|
|
/*ARGSUSED*/
|
|
biz22f_dialer(char *num, char *acu __unused)
|
|
{
|
|
|
|
return (biz_dialer(num, "V"));
|
|
}
|
|
|
|
void
|
|
biz22_disconnect(void)
|
|
{
|
|
|
|
(void)write(FD, DISCONNECT_CMD, 4);
|
|
(void)sleep(2);
|
|
(void)tcflush(FD, TCIOFLUSH);
|
|
}
|
|
|
|
void
|
|
biz22_abort(void)
|
|
{
|
|
|
|
(void)write(FD, "\02", 1);
|
|
}
|
|
|
|
static void
|
|
/*ARGSUSED*/
|
|
sigALRM(int dummy __unused)
|
|
{
|
|
|
|
btimeout = 1;
|
|
longjmp(timeoutbuf, 1);
|
|
}
|
|
|
|
static int
|
|
cmd(const char *s)
|
|
{
|
|
sig_t f;
|
|
char c;
|
|
|
|
(void)write(FD, s, strlen(s));
|
|
f = signal(SIGALRM, sigALRM);
|
|
if (setjmp(timeoutbuf)) {
|
|
biz22_abort();
|
|
(void)signal(SIGALRM, f);
|
|
return (1);
|
|
}
|
|
(void)alarm((unsigned)number(value(DIALTIMEOUT)));
|
|
(void)read(FD, &c, 1);
|
|
(void)alarm(0);
|
|
(void)signal(SIGALRM, f);
|
|
c &= 0177;
|
|
return (c != '\r');
|
|
}
|
|
|
|
static int
|
|
detect(const char * volatile s)
|
|
{
|
|
sig_t f;
|
|
char c;
|
|
|
|
f = signal(SIGALRM, sigALRM);
|
|
btimeout = 0;
|
|
while (*s) {
|
|
if (setjmp(timeoutbuf)) {
|
|
biz22_abort();
|
|
break;
|
|
}
|
|
(void)alarm((unsigned)number(value(DIALTIMEOUT)));
|
|
(void)read(FD, &c, 1);
|
|
(void)alarm(0);
|
|
c &= 0177;
|
|
if (c != *s++)
|
|
return (0);
|
|
}
|
|
(void)signal(SIGALRM, f);
|
|
return (btimeout == 0);
|
|
}
|