Question about FFS extension blocks on floppy disks

[ncafferkey]

Assuming 512-byte blocks, and FFS rather than OFS, this C code should give it:

extblocks = (filesize / 512 - 1) / 72;

[ncafferkey]

So I guess that with OFS and 488 byte blocks, the following would then be true:

extblocks = (filesize / 488 - 1) / 66;

I think it would still be 72 rather than 66. The 488 vs 512 bytes issue only applies to data blocks AFAIK.