[ILUG] hard disk space in C

[Matt Rudge]

Carlos Luna wrote:
> Hi folks!
> 
> What's the best way to get the available amount of hard disk space for a
> given partition in C?
> 
> Thanks!
> Carlos
> 

Trawling back through my old sample C programs produced this......

int diskfree(int drive, struct FREESPACE *df)
{
union REGS regs;

    regs.x.dx = drive;
    regs.x.ax = 0x3600;
    intdos(&regs,&regs);
    if (regs.h.al == 0xFF)
       return 1;
    df->secs_cluster = regs.x.ax;
    df->avail_clusters = regs.x.bx;
    df->sec_size = regs.x.cx;
    df->num_clusters = regs.x.dx;
    return 0;
}

Usual disclaimers apply - and may also be completely useless and not 
what you're looking for at all :)

Actually it looks like it doesn't do partition level, but it might be 
enough to point you in the right direction.  If not, it's in your 
braincells now, so you're stuck with it ;)

Regards

-- 
Matt Rudge
Technical Director
http://www.hcs.ie