/*
* Fork a program with:
* 0 <-> remote tty in
* 1 <-> remote tty out
* 2 <-> local tty out
*/
int
consh(int c)
{
char buf[256];
putchar(c);
if (prompt("Local command? ", buf, sizeof(buf)))
return;
tiplink (buf, TL_SIGNAL_TIPOUT | TL_VERBOSE);
return 0;
}
void
finish(void)
{
char *abortmsg = NULL, *dismsg;
if (LO != NULL && tiplink (LO, TL_SIGNAL_TIPOUT) != 0) {
abortmsg = "logout failed";
}
if ((dismsg = value(DISCONNECT)) != NULL) {
write(FD, dismsg, strlen(dismsg));
sleep (2);
}
tipabort(abortmsg);
}
int
main(int argc, char *argv[])
{
char *system = NULL;
int i;
char *p;
char sbuf[12];
gid = getgid();
egid = getegid();
uid = getuid();
euid = geteuid();
#if INCLUDE_CU_INTERFACE
if (equal(sname(argv[0]), "cu")) {
cumode = 1;
cumain(argc, argv);
goto cucommon;
}
#endif /* INCLUDE_CU_INTERFACE */
if (argc > 4)
usage();
if (!isatty(0))
errx(1, "must be interactive");
for (; argc > 1; argv++, argc--) {
if (argv[1][0] != '-')
system = argv[1];
else switch (argv[1][1]) {
case 'v':
vflag++;
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
BR = atoi(&argv[1][1]);
break;
default:
warnx("%s, unknown option", argv[1]);
break;
}
}
if (system == NULL)
goto notnumber;
if (isalpha(*system))
goto notnumber;
/*
* System name is really a phone number...
* Copy the number then stomp on the original (in case the number
* is private, we don't want 'ps' or 'w' to find it).
*/
if (strlen(system) > sizeof(PNbuf) - 1)
errx(1, "phone number too long (max = %zd bytes)", sizeof PNbuf - 1);
strncpy(PNbuf, system, sizeof(PNbuf) - 1);
for (p = system; *p; p++)
*p = '\0';
PN = PNbuf;
(void)snprintf(sbuf, sizeof(sbuf), "tip%ld", BR);
system = sbuf;
notnumber:
(void)signal(SIGINT, cleanup);
(void)signal(SIGQUIT, cleanup);
(void)signal(SIGHUP, cleanup);
(void)signal(SIGTERM, cleanup);
(void)signal(SIGUSR1, tipdone);
if ((i = hunt(system)) == 0) {
printf("all ports busy\n");
exit(3);
}
if (i == -1) {
printf("link down\n");
(void)uu_unlock(uucplock);
exit(3);
}
setbuf(stdout, NULL);
loginit();
/*
* Kludge, their's no easy way to get the initialization
* in the right order, so force it here
*/
if ((PH = getenv("PHONES")) == NULL)
PH = _PATH_PHONES;
vinit(); /* init variables */
setparity("even"); /* set the parity table */
if ((i = speed(number(value(BAUDRATE)))) == 0) {
printf("tip: bad baud rate %d\n", number(value(BAUDRATE)));
(void)uu_unlock(uucplock);
exit(3);
}
/*
* Now that we have the logfile and the ACU open
* return to the real uid and gid. These things will
* be closed on exit. Swap real and effective uid's
* so we can get the original permissions back
* for removing the uucp lock.
*/
user_uid();
/*
* Hardwired connections require the
* line speed set before they make any transmissions
* (this is particularly true of things like a DF03-AC)
*/
if (HW)
ttysetup(i);
if ((p = connect())) {
printf("\07%s\n[EOT]\n", p);
daemon_uid();
(void)uu_unlock(uucplock);
exit(1);
}
if (!HW)
ttysetup(i);
cucommon:
/*
* From here down the code is shared with
* the "cu" version of tip.
*/
#if HAVE_TERMIOS
tcgetattr (0, &otermios);
ctermios = otermios;
#ifndef _POSIX_SOURCE
ctermios.c_iflag = (IMAXBEL|IXANY|ISTRIP|IXON|BRKINT);
ctermios.c_lflag = (PENDIN|IEXTEN|ISIG|ECHOCTL|ECHOE|ECHOKE);
#else
ctermios.c_iflag = (ISTRIP|IXON|BRKINT);
ctermios.c_lflag = (PENDIN|IEXTEN|ISIG|ECHOE);
#endif
ctermios.c_cflag = (CLOCAL|HUPCL|CREAD|CS8);
ctermios.c_cc[VINTR] = ctermios.c_cc[VQUIT] = -1;
ctermios.c_cc[VSUSP] = ctermios.c_cc[VDSUSP] = ctermios.c_cc[VDISCARD] =
ctermios.c_cc[VLNEXT] = -1;
#else /* HAVE_TERMIOS */
ioctl(0, TIOCGETP, (char *)&defarg);
ioctl(0, TIOCGETC, (char *)&defchars);
ioctl(0, TIOCGLTC, (char *)&deflchars);
ioctl(0, TIOCGETD, (char *)&odisc);
arg = defarg;
arg.sg_flags = ANYP | CBREAK;
tchars = defchars;
tchars.t_intrc = tchars.t_quitc = -1;
ltchars = deflchars;
ltchars.t_suspc = ltchars.t_dsuspc = ltchars.t_flushc
= ltchars.t_lnextc = -1;
#endif /* HAVE_TERMIOS */
raw();
pipe(fildes); pipe(repdes);
(void)signal(SIGALRM, timeoutfunc);
/*
* Everything's set up now:
* connection established (hardwired or dialup)
* line conditioned (baud rate, mode, etc.)
* internal data structures (variables)
* so, fork one process for local side and one for remote.
*/
printf(cumode ? "Connected\r\n" : "\07connected\r\n");
if (LI != NULL && tiplink (LI, 0) != 0) {
tipabort ("login failed");
}
if ((pid = fork()))
tipin();
else
tipout();
/*NOTREACHED*/
}