How to list dos file system directory?

[David wu]

hi all,
  I can open ,read,write ,close a dos file ,but how
can i list all the files in a dir.
  BTW,maybe i find a bug in
cpukit/libcsupport/src/open.c
the function open() shound return file descriptor(a
int value) ....but in fact return a address-address (
return iop - rtems_libio_iops;)
maybe a bug....

                                   David

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