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From: micro18@cbis.ece.drexel.edu (A TechnoDiscordian)
Newsgroups: comp.os.386bsd.questions
Subject: trying to get MacLayers running on NetBSD
Message-ID: <1993Jul24.222832.9325@cbis.ece.drexel.edu>
Date: 24 Jul 93 22:28:32 GMT
Organization: Drexel University, College of Engineering, Philadelphia, PA
Lines: 47
As the title says, I'm trying to get MacLayers running under NetBSD.
(for those who don't know, maclayers is a two part system for multi-window
logins over 1 serial line. It consists of a special communications program
for the mac, and some code on the unix side to handle running several
ptys over the one serial line.)
Anyway, I compiled MacLayers unix side (I used the makefile's setting
'oldsun' which it says is good for BSD systems) got only one Warning (a simple
argument type mismatch on a pointer argument - not a problem) and ran it.
It actually runs (and much of it works) but during it's setup of the ptys
it does the following:
mypid = getpid ();
(void) setpgrp (0, mypid);
ioctl (DevTty, TIOCNOTTY, (char *)0);
if ((tf = open (TtyName, O_RDWR)) == -1)
{ SendErrorMsg ("Cannot open %s: %s", TtyName, sys_errlist[errno]);
exit (EXITABNORMAL);
}
DO DEBUG("Now in new process\n");
fflush(stdout);
fflush(stderr);
(void) dup2 (tf, 0);
(void) dup2 (tf, 1);
(void) dup2 (tf, 2);
for (f = getdtablesize () - 1; f > 2; f--)
close (f);
{/* MHK */
int retcode;/* MHK */
retcode = ioctl (0, TIOCSPGRP, &mypid);
DO DEBUG("ioctl 0,TIOCSPGRP retcode: %d\n",retcode);/* MHK */
if (retcode < 0)
DO DEBUG("ioctl 0,TIOCSPGRP errno: %s\n",strerror(errno));/* MHK */
}
The point of failure is when the ioctl (0, TIOCSPGRP, &mypid) is done. That
call returns -1, and leaves me logged into a pty where even 'more' can't run
because it can't make ioctl calls correctly. Any ideas as to which manual to
look in, or reasons as to why this doesn't work, I'd love to hear. I currently
can't really use layers correctly until this problem is fixed.
Any help will be greatly appreciated.
Michael Kohne
House of the Techno-Discordians, Automotive Amusements Division
<VROOOOOOOM>