FreeTDS Development Group

[Robert Benjamin <freetds228 AT lewenberg.com>]

I installed the development version of freetds and am still getting the 
same error. I re-compiled PHP with --enable-debug and this is what it 
tells me:


[Sat Nov  5 11:26:07 2005]  Script:  '/www-s/testfreetds.php'
---------------------------------------
/root/tmp/php-4.4.1/ext/mssql/php_mssql.c(191) : Block 0x093CA2E0 status:
/root/tmp/php-4.4.1/Zend/zend_variables.c(44) : Actual location 
(location was relayed)
Beginning:      OK (allocated on 
/root/tmp/php-4.4.1/ext/mssql/php_mssql.c:904, 19 bytes)
      End:      Overflown (magic=0x31383A34 instead of 0x2A8FCC84)
                At least 4 bytes overflown
---------------------------------------



Frediano Ziglio wrote:
> Il giorno sab, 05/11/2005 alle 10.55 -0500, James K. Lowden ha scritto:
>
> > Robert Benjamin wrote:
> >
> > > I am using freetds 0.63 with php 4.4.1. I have a simple script which 
> > > executes the query
> > >
> > > "SELECT [DateModified] FROM PEOPLE WHERE LastName LIKE '%Smith%'
> > >
> > >
> > > When fetching the data with the code
> > >
> > > while ($row = $rs->fetchRow(DB_FETCHMODE_ASSOC))
> > > {
> > >   print "Date modified is " . $row["DateModified"] . "\n" ;
> > > }
> > >
> > > if the DateModified is _not_ NULL, I get a segmentation fault. 
> >
> > The form of the default datetime->character conversion has been carefully
> > set to mimic that of the vendors' libraries. I think if you get a
> > backtrace in gdb for your simple script, you'll find the culprit is
> > somewhere in the PHP code.  
> >
> > FreeTDS transports your datetime field in its native format, and PHP
> > converts it to a character string.  The conversion may be implicit
> > (dbbind) or explicit (dbconvert); I don't know.  Regardless, it's
> > certainly an opportunity to fail to allocate enough memory for the
> > conversion, which is certainly one route to a segmentation fault.  
> >
> > HTH.  
> >
> > --jkl
>
>
> Try also post 0.63 patch from
> http://freetds.sourceforge.net/post63.diff.gz
>
> Fri Jul 22 13:38:26 CET 2005    Frediano Ziglio <freddy77 AT angelfire.com>
>         * src/tds/convert.c: fix possible core calling strftime
>
> freddy77
>
>
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