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/* $OpenBSD: df.c,v 1.10 2009/10/27 23:59:45 deraadt Exp $ */
/* $NetBSD: df.c,v 1.4 1995/10/29 00:49:51 pk 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.
*/
/*
* Dial the DF02-AC or DF03-AC
*/
#include "tip.h"
static jmp_buf Sjbuf;
static int df_dialer(char *, char *, int);
static void alrm_timeout(int);
int
df02_dialer(char *num, char *acu)
{
return (df_dialer(num, acu, 0));
}
int
df03_dialer(char *num, char *acu)
{
return (df_dialer(num, acu, 1));
}
static int
df_dialer(char *num, char *acu, int df03)
{
int f = FD;
struct termios cntrl;
int speed = 0;
char c = '\0';
tcgetattr(f, &cntrl);
cntrl.c_cflag |= HUPCL;
tcsetattr(f, TCSANOW, &cntrl);
if (setjmp(Sjbuf)) {
printf("connection timed out\r\n");
df_disconnect();
return (0);
}
if (boolean(value(VERBOSE)))
printf("\ndialing...");
fflush(stdout);
#ifdef TIOCMSET
if (df03) {
int st = TIOCM_ST; /* secondary Transmit flag */
tcgetattr(f, &cntrl);
speed = cfgetospeed(&cntrl);
if (speed != B1200) { /* must dial at 1200 baud */
cfsetospeed(&cntrl, B1200);
cfsetispeed(&cntrl, B1200);
tcsetattr(f, TCSAFLUSH, &cntrl);
ioctl(f, TIOCMBIC, &st); /* clear ST for 300 baud */
} else
ioctl(f, TIOCMBIS, &st); /* set ST for 1200 baud */
}
#endif
signal(SIGALRM, alrm_timeout);
alarm(5 * strlen(num) + 10);
tcflush(f, TCIOFLUSH);
write(f, "\001", 1);
sleep(1);
write(f, "\002", 1);
write(f, num, strlen(num));
read(f, &c, 1);
#ifdef TIOCMSET
if (df03 && speed != B1200) {
cfsetospeed(&cntrl, speed);
cfsetispeed(&cntrl, speed);
tcsetattr(f, TCSAFLUSH, &cntrl);
}
#endif
return (c == 'A');
}
void
df_disconnect(void)
{
write(FD, "\001", 1);
sleep(1);
tcflush(FD, TCIOFLUSH);
}
void
df_abort(void)
{
df_disconnect();
}
/*ARGSUSED*/
static void
alrm_timeout(int signo)
{
longjmp(Sjbuf, 1);
}
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