From:	ad354 AT FreeNet DOT Carleton DOT CA (James Owens)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: InfoZIP vol label: force it, but please advise
Date:	9 Nov 2000 14:58:39 GMT
Organization:	The National Capital FreeNet
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"Eli Zaretskii" (eliz AT is DOT elta DOT co DOT il) writes:
>> From: ad354 AT FreeNet DOT Carleton DOT CA (James Owens)

>> I compiled the unmodified source under Win98 and I get different
>> behaviour. It will label the diskette without truncating, but only if the
>> diskette is not already labelled (that gets "error setting volume label".)
> 
> This is a different problem, it comes out of the code that actually
> puts the label on the floppy.  I suggest to solve one problem at a
> time; if you want to solve this one first, post here the code which
> labels the disk.

Here are what seem to be the relevant bits of volumelabel():

/*---------------------------------------------------------------------------
    If not previously labelled, write a new label.  Otherwise just rename,
    since MS-DOS 2.x has a bug that damages the FAT when the old label is
    deleted.
---------------------------------------------------------------------------*/
        regs.h.ah = 0x17;                 /* FCB rename */

        F_intdosx(&regs, &regs, &sregs);
        if (regs.h.al) {
            Trace((stderr, "Unable to change volume name (AL = %x)\n",
              regs.h.al));
            retv = 1;


F_intdosx is defined thus (for non-Watcom compilers):

#  define F_intdosx(ir,or,sr) intdosx(ir, or, sr)


--

                                     James Owens  ad354 AT Freenet DOT carleton DOT ca
                                     Ottawa, Ontario, Canada

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