VFC File truncated when copied from VMS to Linux via smbfs

[COLLOT Jean-Yves]

The problem is that specific file mixes text(ASCII) records, and binary
records (in fact big records filled with binary zeroes).

In this particular case, the Samba/VMS method for computing the size of the
file (as if it was a stream file) does not work properly : all the zeroes
are forgotten.

This is not too much a problem when the client is Windows/Wordpad or
Notepad. It becomes a bigger problem when the client is from Linux (vi, cp,
etc...), because such clients first asks the server for the size of the
file, then processes the file according to the server's answer. As far at
that answer was not correct, the file was truncated.

You now have a fixed version of Samba available on the usual location
(http://www.pi-net.dyndns.org/anonymous/jyc/).

In addition, this new version also fixes a small bug that made the NMBD
process to slowly grow its virtual memory consumption. After some time
(several weeks or even months), NMBD started to act curiously, because it
sometimes failed to get memory.

JY

-----Message d'origine-----
De : Ben Armstrong [mailto:BArmstrong at dymaxion.ca] 
Envoyé : mardi 20 juillet 2004 19:51
À : samba-vms at samba.org
Objet : VFC File truncated when copied from VMS to Linux via smbfs

I have a pair of log files of similar size and format that always are
truncated somewhere at around the 16000'th out of 19000+ lines when I
copy them from a Samba 2.2.8 VMS system to a Linux system running Samba
3.0.4 and smbfs (Linux 2.6.7).  A "dir/full" of one of the files is as
follows:

SYNEDT_P.BG;1                 File ID:  (259952,18,0)         
Size:         1950/2001       Owner:    [DV,BG]
Created:    20-JUL-2004 13:33:36.00
Revised:    20-JUL-2004 13:33:36.00 (7)
Expires:    20-JUL-2014 13:50:42.06
Backup:     <No backup recorded>
Effective:  <None specified>
Recording:  <None specified>
Accessed:   <None specified>
Attributes: <None specified>
Modified:   <None specified>
Linkcount:  1
File organization:  Sequential
Shelved state:      Online 
Caching attribute:  Writethrough
File attributes:    Allocation: 2001, Extend: 0, Global buffer count: 0
                    Version limit: 1
Record format:      VFC, 2 byte header, maximum 0 bytes, longest 3828
bytes
Record attributes:  Print file carriage control
RMS attributes:     None
Journaling enabled: None
File protection:    System:RWED, Owner:RWED, Group:RWED, World:
Access Cntrl List:  None
Client attributes:  None

If I convert the file using this stream.fdl and then copy the file, it
is no longer truncated by the copy:

FILE
        ORGANIZATION            sequential
RECORD
        BLOCK_SPAN              yes
        CARRIAGE_CONTROL        carriage_return
        FORMAT                  stream_lf

I cannot reproduce the truncation when I copy the file from the VMS
system to a Win2K system.  Nor can I reproduce the truncation when I use
GNOME nautilus to copy the file.

Any idea what might be going wrong, here?

Ben
-- 
      Ben Armstrong                -.       Medianet Development Group,
      BArmstrong at dymaxion.ca         `-.    Dymaxion Research Limited
      <URL: http://www.dymaxion.ca/>    `-  Halifax, Nova Scotia, Canada
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