FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

> From: Gene Dymarskiy
> Sent: Tuesday, November 02, 2004 5:42 PM
> 
> Some additional info.
> 
> TDSDUMPs for tsql and isql connections look different. 
> 
> Note: the name of the database I am connecting to is "needles".    The
> name is being passed with tsql but not with isql if I read the dumps
> properly.

tsql snippet:
> 13:04:39.519751 Connecting to 192.168.1.5 port 2638, TDS 5.0.
> Sending packet @ 13:04:39.560330
> ...
> 00b0 00 00 04 6e 65 65 64 6c-65 73 00 00 00 00 00 00 |...needl
es......|

isql snippet:
> pid: 9258:13:06:10.059606 Connecting to 192.168.1.5 port 2638, TDS
5.0.
> pid: 9258:Sending packet @ 13:06:10.372320
> ...
> 00b0 00 00 00 53 59 42 41 53-45 00 00 00 00 00 00 00 |...SYBAS
E.......|

Something's missing.  

As you say, the tsql connection is passing "needles" correctly, and the
isql one is not.    We're looking at offset 179 in the login packet,
which, according to http://www.freetds.org/tds.html#login, is the
Servername field.  

We know that there's nothing isql itself can do set that field; there's
no interface to that part of the login packet.  (At least that's true
for db-lib; I don't think there's one for ODBC, either.) That means
FreeTDS is inserting the 'SYBASE' string.  Why would it do that?  That's
the default last-ditch name, what it uses when it can't find any name.  

However, src/tds/config.c *did* do something right, because it correctly
looked up the ip address, port, and TDS version.  No chance you have a
[SYBASE] entry in freetds.conf, is there?  

I suggest you set TDSDUMPCONFIG, try both commands again, and compare
them.  Are they looking up the same name, and finding the same entries?


--jkl

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