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From: guido@mcvax.UUCP (Guido van Rossum)
Newsgroups: net.micro.pc
Subject: Re: Lattice C Library vs. DOS 2.0 Query
Message-ID: <5944@mcvax.UUCP>
Date: Mon, 27-Aug-84 14:30:07 EDT
Article-I.D.: mcvax.5944
Posted: Mon Aug 27 14:30:07 1984
Date-Received: Thu, 30-Aug-84 20:30:17 EDT
References: <12489@sri-arpa.UUCP>
Reply-To: guido@mcvax.UUCP (Guido van Rossum)
Organization: "Stamp Out BASIC" Committee, CWI, Amsterdam
Lines: 14

Careful reading of the files stdio.h, ios1.h and main.c, provided with
the Lattice distribution (2.04), show that (for DOS 2.0) there is a table,
to be declared as
	struct UFB _ufbs[];
which is indexed with the "unix" file handle (the number returned
by fileno(f)).  Each entry contains a field named ufbfh which contains
the DOS file handle, as I understand it (I never tried this out).
So the following would give the DOS file handle of f, declared as FILE *f:
	_ufbs[fileno(f)].ufbfh
You must #include <stdio.h> and <ios1.h> (and <dos.h>?)

--
	Guido van Rossum, "Stamp Out BASIC" Committee, CWI, Amsterdam
	guido @ mcvax