Path: utzoo!attcan!uunet!super!udel!gatech!rutgers!ucsd!ames!elroy!aero!trwrb!cadovax!keithd
From: keithd@cadovax.UUCP (Keith Doyle)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Need help with ....
Message-ID: <2241@cadovax.UUCP>
Date: 8 Sep 88 23:46:40 GMT
References: <298@lexicon.UUCP> <6234@batcomputer.tn.cornell.edu>
Reply-To: keithd@cadovax.UUCP (Keith Doyle)
Organization: Contel Business Systems, Torrance, CA
Lines: 24

In article <6234@batcomputer.tn.cornell.edu> riley@tcgould.tn.cornell.edu (Daniel S. Riley) writes:
>>4)  Would like to find out the names for file system devices
>>currently running ("DF0:", "DH0:", "VD0:", etc.).  This is for

>You might look at the routine to show locks, written by Chuck McManis,
>or look in the browser code in mg.  The basic code, taken from Chuck's
>program, looks something like this:
>rn = (struct RootNode *) DOSBase->dl_root;
>di = (struct DosInfo *) BADDR(rn->rn_info);
>dl = (struct DeviceList *) BADDR(di->di_DevInfo);
>and the next one is
>dl = (struct DeviceList *) BADDR(dl->dl_next);
>The device name is in the DeviceList entry, along with info on the type
>of entry, etc...look in dos.h and dosextens.h for details.

I found that if you get to the DeviceList from a FileLock, it won't get 
you DF0: DF1: VD0: RAM: etc., you get the logical names of the disk that 
is in the drive, not the physical device names.  Haven't tried chasing it 
from the RootNode though, I guess it could be different.  How do you weed
out devices like SER: PAR: PIPE: etc?  Is it possible to determine the 
*device* name (not the disk name) from the FileLock in any way?

Keith Doyle
#  {ucbvax,decvax}!trwrb!cadovax!keithd  Contel Business Systems 213-323-8170