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/* $OpenBSD: dn11.c,v 1.9 2006/03/17 19:17:13 moritz Exp $ */
/* $NetBSD: dn11.c,v 1.4 1995/10/29 00:49:53 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.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)dn11.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] = "$OpenBSD: dn11.c,v 1.9 2006/03/17 19:17:13 moritz Exp $";
#endif /* not lint */
/*
* Routines for dialing up on DN-11
*/
#include "tip.h"
static jmp_buf jmpbuf;
static pid_t child = -1, dn;
static void alarmtr(int);
int
dn_dialer(char *num, char *acu)
{
int lt, nw;
int timelim;
struct termios cntrl;
if (boolean(value(VERBOSE)))
printf("\nstarting call...");
if ((dn = open(acu, 1)) < 0) {
if (errno == EBUSY)
printf("line busy...");
else
printf("acu open error...");
return (0);
}
if (setjmp(jmpbuf)) {
kill(child, SIGKILL);
close(dn);
return (0);
}
signal(SIGALRM, alarmtr);
timelim = 5 * strlen(num);
alarm(timelim < 30 ? 30 : timelim);
if ((child = fork()) == 0) {
/*
* ignore this stuff for aborts
*/
signal(SIGALRM, SIG_IGN);
signal(SIGINT, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
sleep(2);
nw = write(dn, num, lt = strlen(num));
exit(nw != lt);
}
/*
* open line - will return on carrier
*/
if ((FD = open(DV, 2)) < 0) {
if (errno == EIO)
printf("lost carrier...");
else
printf("dialup line open failed...");
alarm(0);
kill(child, SIGKILL);
close(dn);
return (0);
}
alarm(0);
tcgetattr(dn, &cntrl);
cntrl.c_cflag |= HUPCL;
tcsetattr(dn, TCSANOW, &cntrl);
signal(SIGALRM, SIG_DFL);
while ((nw = wait(<)) != child && nw != -1)
;
fflush(stdout);
close(dn);
if (lt != 0) {
close(FD);
return (0);
}
return (1);
}
/*ARGSUSED*/
static void
alarmtr(int signo)
{
alarm(0);
longjmp(jmpbuf, 1);
}
/*
* Insurance, for some reason we don't seem to be
* hanging up...
*/
void
dn_disconnect(void)
{
sleep(2);
if (FD > 0)
ioctl(FD, TIOCCDTR, 0);
close(FD);
}
void
dn_abort(void)
{
sleep(2);
if (child > 0)
kill(child, SIGKILL);
if (dn > 0)
close(dn);
if (FD > 0)
ioctl(FD, TIOCCDTR, 0);
close(FD);
}
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