samba - Jul 2003 - Tar Failures Using smbclient from Samba 3.0.0beta2

I was trying to improve the performance of BackupPC 
http://backuppc.sourceforge.net/, which uses smbclient to connect to 
Windows systems to backup Windows desktop systems. I'm currently 
running Samba 2.2.8a on a fairly beefy Solaris 9 system and only 
getting 200-700 KB/sec from the Windows clients. The 700 KB/sec is when 
I connect to a dual-Athalon 2600+ Win2K system attached to the network 
with Gigabit Ethernet. To make a long story short, I set the system up 
to use smbclient 3.0.0beta2 and now get a syntax error when BackupPC 
starts the backups. Here is the command syntax it is using:

smbclient \\\\client1\\C\$ -I 192.168.1.1 -U backuppc -E -N -d 1 -c 
tarmode\ full -Tc -

it appears as though BackupPC loads the user password into the PASSWD 
environment variable to login without password prompts. When I switch 
smbclient from 2.2.8a to 3.0.0beta2, I get the following error message 
in the BackupPC logs:

==========================Error opening local file \\client1\C$ - Permission
denied
Usage: [-?EVNk] [--usage] [-R NAME-RESOLVE-ORDER] [-M HOST] [-I IP] [-L 
HOST]
         [-t CODE] [-m LEVEL] [-T <c|x>IXFqgbNan] [-D DIR] [-c ARG] [-b 
BYTES]
         [-p PORT] [-d DEBUGLEVEL] [-s CONFIGFILE] [-l LOGFILEBASE]
         [-O SOCKETOPTIONS] [-n NETBIOSNAME] [-W WORKGROUP] [-i SCOPE]
         [-U USERNAME] [-A FILE] service <password>
==========================
The man page for smbclient 3.0.0beta2 appears to be unchanged from the 
2.x releases, so I'm a little at a loss as to what to do. I tried 
rearranging the arguments a little:

==========================smbclient -I 192.168.1.1 -U backuppc -E -N -d 1
\\\\client1\\C\$

gets me connected to the Windows system and left at the "smb: \>"
prompt
==========================
==========================smbclient -I 192.168.1.1 -U backuppc -E -N -d 1 -c
tarmode\ full
\\\\client1\\C\$

spits out "tarmode is now full, system, hidden, noreset, verbose" and 
then exits
==========================
==========================smbclient -I 192.168.1.1 -U backuppc -E -N -d 1 -c
tarmode\ inc -Tc -
\\\\client1\\C\$

spits out:
tarmode is now full, system, hidden, noreset, verbose
NT_STATUS_NO_SUCH_FILE listing \192.168.1.1
NT_STATUS_NO_SUCH_FILE listing \-U
NT_STATUS_NO_SUCH_FILE listing \backuppc
NT_STATUS_NO_SUCH_FILE listing \-E
NT_STATUS_NO_SUCH_FILE listing \-N
NT_STATUS_NO_SUCH_FILE listing \-d
NT_STATUS_NO_SUCH_FILE listing \1
NT_STATUS_NO_SUCH_FILE listing \-c
NT_STATUS_NO_SUCH_FILE listing \tarmode inc
NT_STATUS_NO_SUCH_FILE listing \-Tc
NT_STATUS_OBJECT_NAME_NOT_FOUND listing \client1\C$
tar: dumped 0 files and directories
Total bytes written: 0
==========================
It appears as though smbclient has broken argument parsing, as well as 
having an out of date man page. Any ideas on what I should try?

Steve