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To: Andrew Gallatin <gallatin@isds.duke.edu>
cc: hackers@freebsd.org
Subject: Re: Linux emulator and Mathematica 
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                              dated today at 22:13.
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Date: Mon, 01 Apr 1996 10:02:57 +0100
From: Colman Reilly <creilly@maths.tcd.ie>
Message-ID:  <9604011003.aa25264@salmon.maths.tcd.ie>
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     Hi,
     
     I just did a search of the FreeBSD mailing lists & found your reports
     of success in running Mathematica for Linux under FreeBSD 2.1R after
     adding the sigreturn call from -current into the 2.1R version of the
     linux emulator.
     
     I'm attempting to run Mathematica 2.2.4 under 2.1R and/or 2.2-current
     using the network licensing scheme and running into some problems.  I
     was wondering what version you managed to make work & if you're using
     the network or one-off licensing scheme.
     
The network. To make the network run, you have to emulate the SIOCHWADDR call
from linux. This returns the ethernet address of your machine.

Um. Horrible code segment follows.

Insert into linux_ioctl, in linux_ioctl.c, inside the first switch.

  case 0x8927:
        hwaddr[0]=0x00;
        hwaddr[1]=0x00;
        hwaddr[2]=0xc0;
        hwaddr[3]=0x27;
        hwaddr[4]=0xe5;
        hwaddr[5]=0x66;
        return copyout((caddr_t)hwaddr, (caddr_t)args->arg,6);


The 6 numbers need to be your ethernet address in hex. I'm sorry, this is a 
disgusting hack, but I still haven't had time to fix it

Colman