From: Nicolas George <nicolas.george@ens.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] calling telnet from a caml program
Date: Wed, 6 Nov 2002 18:39:14 +0100 [thread overview]
Message-ID: <20021106173914.GA2260@clipper.ens.fr> (raw)
In-Reply-To: <Pine.LNX.4.44.0211061910030.1661-100000@no.spam.ee>
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Le sextidi 16 brumaire, an CCXI, Andrei Errapart a écrit :
> If it is possible in C, then it is possible in OCaml, too. Most
> probably some termios(3) calls are needed, but not much more.
It is More Complicated Than That(tm). On modern Unix, the steps to do
that are:
- master = open(/dev/ptmx)
- grantpt(master)
- unlockpt(master)
- fork
- setsid
- slave = open(ptsname(master))
- ioctl(slave, I_PUSH, "ptem")
- ioctl(slave, I_PUSH, "ldterm")
- ioctl(slave, I_PUSH, "ttcompat")
On BSD, this is more painful, since you must find among /dev/pty*
someone that can be opened, and change ownership of the corresponding
/dev/tty* (so you must be root). The only common step is the
fork/setsid.
There is nothing impossible, but there are horripilating portability
problems here.
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next prev parent reply other threads:[~2002-11-06 17:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-06 16:11 Alan Schmitt
2002-11-06 16:26 ` Andrei Errapart
2002-11-06 16:34 ` Alan Schmitt
2002-11-06 17:20 ` Andrei Errapart
2002-11-06 17:39 ` Nicolas George [this message]
2002-11-06 19:51 ` David Brown
2002-11-06 20:56 ` Gerd Stolpmann
2002-11-06 21:07 ` Alan Schmitt
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