Swap 2nd and 3rd arg to Fread/Fwrite to preserve read/write type return.

Swap 2nd and 3rd arg to Fread/Fwrite to preserve read/write type return.
Use Fstrerror to retrieve fd->syserrno.
Make ftpFileDoneNeeded per-fd rather than per-url.
Make data fd unique rather than per-url.
Use appropriate protocol commands for ufdio writing.

CVS patchset: 3421
CVS date: 1999/11/10 22:09:49