MAX_UNITS
for (n = 0; n < 4 && ndrive < MAX_UNITS; n++) {
return (unit >= 0 && unit < MAX_UNITS) ? &ldisk[unit] : NULL;
static struct disk ldisk[MAX_UNITS];
argv = alloc(MAX_UNITS * (sizeof(char *) + blen));
bname = (char *)(argv + MAX_UNITS);
for (i = 0; i < MAX_UNITS; i++) {