FreeTDS Development Group

[Brian Bruns <camber AT ais.org>]

Hi Eric,

We moved CVS to sourceforge a couple of weeks ago.  The faq on
http://www.freetds.org has the updated info.

Brian

On Mon, 29 Oct 2001, Eric Deutsch wrote:

>
> Hi Brian, I just downloaded the latest version from CVS, compiled it, tested
> it and I get the same problems.  I investigated a little and discovered that
> nothing has changed.  Am I pulling from the wrong CVS?  I did a fresh pull
> from CVS and nothing has changed since Sep 27:
>
> cvs -d :pserver:anon-cvs AT freetds.internetcds.com:/Repository checkout
> freetds
> ll `find . -mtime -40 -type f -print` | grep -v CVS
> -rw-r--r--    1 edeutsch isb          8695 Sep 27 05:09 ./ChangeLog
>
> Where can I find this latest code?
>
> thanks,
> Eric
>
>
> > -----Original Message-----
> > From: Brian Bruns
> >
> > Ok, finally setup the sql7 box and had a chance to look at this
> >
> > > From: "Eric Deutsch" <edeutsch AT systemsbiology.org>
> > > Subject: [freetds] Re: CORE DUMP - Linux - TDSVER=7.0
> > > Date: Fri, 10 Aug 2001 11:49:55 -0700
> > >
> > [stuff deleted]
> >
> > > I found the problems which caused the seg faults in login.c and applied
> > > the following hacks to prevent the seg faults.  This is not a
> > proper fix,
> > > but more or a hack.  I hope the principle authors of FreeTDS can figure
> > > out where the REAL problem lies and fix it there.  In poking around, it
> > > seemed a little like the pooling code already does a similar hack? so
> > > maybe these problems don't occur for those using pooled connections?  In
> > > any case, once the seg faults are prevented, the end result is:
> >
> > The initial hostname should be set in tds_alloc_config and it should be
> > the default of the actual hostname of the client (As returned by
> > gethostname()).  I've checked this bit in if you can try it.
> >
> > > Unknown marker: 0!!
> > >
> > > and a graceful termination of the program.  So, this patch doesn't cause
> > > the login and query to work, but at least there's no seg fault.  I'm out
> > > of time for now.  Does anyone have any ideas why the above error?
> >
> > Unknown marker 0 could be caused by the SQL Server terminating the
> > connection on us, where we aren't catching it.  I didn't have this
> > problem, so if you could pull the lastest copy out of CVS and give it a
> > try....
> >
> > > thanks,
> > > Eric
> > >
> > >
> > > commentary: first seg fault is caused because config->host_name never
> > > gets set, so when strlen() or any other function is called on it, seg
> > > fault occurs.  Where should login->host_name (and thus config->host_name
> > > get originally set?).  The second seg fault occurs when the login fails
> > > and the tds_free_config() can be called twice, the second time causing a
> > > seg fault.  I commented out the above tds_free_config() because
> > it appears
> > > to be guaranteed that it will be called again a few lines later.  An
> > > alternate fix might be to "return NULL" at the end of this if block..
> >
> > the duplicate call to tds_free_config() has been fixed for a long time.
> > The config change was a big one, and we've been bitten more than once on
> > it.
> >
> >
> > Brian
> >
> >
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