connie@psych.Stanford.EDU (Constance Stillinger) (03/29/90)
Since a zillion people have asked me for this info, I am posting it.
Comments and corrections are most welcome!
Here's what I finally did in order to dial out from my ds3100 with a
2400 bps hayes-compatible modem. The section of the manual that tells
you what to do is (obviously...??) "Guide to the UUCP Utility" (in
System Management vol. 3).
>>>> I just don't have the faintest idea how to configure things
to enable dial-INS, however. Anyone who has been able to do this,
pleeeeze email me! <<<<
1. Bought cable and adaptor from DEC (cable BC16E-10 -- the "10"
signifies the length in feet -- and adaptor H8571-C). The adaptor has
a pair of superfluous attachment posts that I snapped off easily with
a pair of pliers (otherwise it wouldn't plug in to the modem).
2. With the "Guide to UUCP" in my lap, I then ran "uucpsetup," which
evidently moved /dev/tty00 to /dev/ttyd1 and created a line in
/etc/ttys, which I had to edit further to read:
ttyd1 "/etc/getty S2400" dialup off modem shared # oldname=tty00,hayes
This supposedly (a) tells init to do a getty on ttyd1 searching for
the S2400 entry [2400-baud rotary] in /etc/gettytab, (b) says the
terminal attached to it is a vt100 [maybe unnecessary], (c) disables
logins [when I set the line to "on" instead, I got an "all ports busy"
message when I tried to dial out], (d) enables modem control [maybe
unnecessary], and (d) says the line can be used for both incoming and
outgoing calls (?).
(after you make these changes, you have to do kill -1 1 in order to
rescan the ttys file)
3. chmod 666 /etc/ttyd1 (uucpsetup probably already did this for me)
4. Checked /var/uucp/L-devices to verify that it contained the
following line:
ACU ttyd1 ttyd1 2400 hayes
5. In /etc/remote, I created an entry that looks like this:
con2400|my 2400 baud:\
:dv=/dev/ttyd1:br#2400:at=hayes
This entry is used by tip (which you will use to actually dial out),
telling it that (a) the modem device is at /dev/ttyd1, (b) the baud
rate is 2400, and (c) to look in /etc/acucap for capabilities of the
hayes modem. I did not change the hayes entry in /etc/acucap.
6. Then back at csh prompt, "tip con2400", which should respond with
"connected (/dev/ttyd1)", whereupon you can type AT commands to
the modem.
Connie
Constance Stillinger
connie@psych.stanford.edu (Now of Northwestern Univ., Evanston, IL)
-------jtkohl@MIT.EDU (John T Kohl) (03/29/90)
In article <1079@psych.stanford.edu> connie@psych.Stanford.EDU (Constance Stillinger) writes: > >>>> I just don't have the faintest idea how to configure things > to enable dial-INS, however. Anyone who has been able to do this, > pleeeeze email me! <<<< I have a modem (Telebit Trailblazer +) set up for dial in/out on my machine. For dial-out, I use kermit, with some mods I added to do the line sharing properly (attached are patches to ckutio.c, from C-Kermit, 4D(061) 8 Sep 86). Just do set line /dev/ttyd0 set baud xxxx connect and dial away. For dial-in, I modified /etc/gettytab to make an appropriate baud-rate loop for autobauding incoming connections, but it sometimes doesn't work quite right. I usually dial in at 9600bps, so it's usually not a problem. >>> WARNING: make sure your modem is silent (non-echoing, no ring indication, etc), otherwise the getty process and the modem will have a nice long chat, eating up CPU time. My /etc/ttys line for the dialin/out is this: ttyd0 "/etc/getty D9600" network on shared secure # modem line (D9600 is my new entry in /etc/gettytab) and the kermit patches (again, relative to C-Kermit 4D(061) 8 Sep 86) *** /tmp/,RCSt1000726 Thu Mar 29 09:36:50 1990 --- ckutio.c Wed Sep 20 15:42:53 1989 *************** *** 377,389 **** #ifdef NEWUUCP acucntrl("disable",ttname); /* Open getty on line (4.3BSD) */ #endif ! #ifdef UXIII /* if modem connection, don't wait for carrier */ ttyfd = open(ttname,O_RDWR | (modem ? O_NDELAY : 0) ); #else ttyfd = open(ttname,2); /* Try to open for read/write */ #endif ! if (ttyfd < 0) { /* If couldn't open, fail. */ perror(ttname); return(-1); --- 377,393 ---- #ifdef NEWUUCP acucntrl("disable",ttname); /* Open getty on line (4.3BSD) */ #endif ! #ifdef ultrix /* if modem connection, don't wait for carrier */ + ttyfd = open(ttname,O_RDWR | O_BLKINUSE, 0 ); + #else + #ifdef O_NDELAY + /* if modem connection, don't wait for carrier */ ttyfd = open(ttname,O_RDWR | (modem ? O_NDELAY : 0) ); #else ttyfd = open(ttname,2); /* Try to open for read/write */ #endif ! #endif /* ultrix */ if (ttyfd < 0) { /* If couldn't open, fail. */ perror(ttname); return(-1); *************** *** 452,457 **** --- 456,465 ---- /* Request exclusive access on systems that allow it. */ + #ifdef ultrix + if (ioctl(ttyfd, TIOCSINUSE, 0) < 0) + fprintf(stderr,"Warning, problem getting inuse access\n"); + #endif #ifndef XENIX /* Xenix exclusive access prevents open(close(...)) from working... */ #ifdef TIOCEXCL *************** *** 489,494 **** --- 497,506 ---- } ttres(); /* Reset modes. */ /* Relinquish exclusive access if we might have had it... */ + #ifdef ultrix + if (ioctl(ttyfd, TIOCCINUSE, 0) < 0) + fprintf(stderr,"Warning, problem relinquishing inuse access\n"); + #endif #ifndef XENIX #ifdef TIOCEXCL #ifdef TIOCNXCL -- John Kohl <jtkohl@ATHENA.MIT.EDU> or <jtkohl@Kolvir.Brookline.MA.US> Digital Equipment Corporation/Project Athena (The above opinions are MINE. Don't put my words in somebody else's mouth!)