[Samba] Re: Samba and NUL characters

Andrew Bartlett abartlet at samba.org
Thu Dec 29 01:05:56 GMT 2005

On Wed, 2005-12-28 at 10:00 -0500, Matteo D'Amato wrote:
> Hi,
> 	We have a Windows NT 4 SP5 sharing a read-only share of logs
> that are constantly being written to and a Linux box running CentOS
> release 4.2 (Final) that mounts this share. The share in mounted using
> the following command:
> smbmount //cdn-mtl-ms/Logs /mnt/logs -o
> sockopt=SO_KEEPALIVE,username=user,password=pass,ro,uid=503,gid=503
> smbmount -v shows --> Version 3.0.10-1.4E.2

The critical thing is the kernel version, not the smbmount version.  

> We notice a problem when we try do a tail -f on a file through the
> share. It seems that part of the lines gets replaced by ^@ or NUL
> characters. We only see this when we redirect that tail -f output to a
> file since NUL in non printable, the terminal just shows truncated
> lines. This is working perfectly on another Linux box running Red Hat
> Enterprise Linux AS release 3 (Taroon Update 3) with version 3.0.6-2.3E
> of samba. Does anyone have any ideas on how to fix this issue. Thanks

You should look into the CIFS VFS, which is a maintained filesystem, and
provides better semantics to servers such as NT.

Andrew Bartlett

Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org
Student Network Administrator, Hawker College  http://hawkerc.net
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