(Fwd) Re: DOSFS bug fixes, IDE drivers and sample released

Thomas Doerfler Thomas.Doerfler at imd-systems.de
Thu Apr 24 11:13:37 UTC 2003


sorry for the LATE reply.

Yes now I am sure that DOSFS (in the current version) properly 
translates filenames into upper case. This is done in the 
function "msdos_format_name" in msdos_misc.c.

So Filenames are stored in uppercase on disk, and they are 
converted to upper case before getting compared.


> Thomas Doerfler wrote:
> > 
> > I am glad things are working for you now. The upper case 
> > matter is a bit strange. Per definition, DOS filenames are 
> > case insensitive. They are stored in upercase in the dorectory 
> > but I am sure I open my files with a lowercase filename given 
> > and the functions definitively find the right file and open 
> > and read/write it.
> Are you sure ?
> My reading of the FAT code in cpukit/libfs/src/dosfs/msdos_misc.c is the file name 
> tests are using strncmp so are case sensitive.
> It also looks like long file names are not support. Is this true ?
> -- 
>   Chris Johns, cjohns at cybertec.com.au

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