Hello,
I finally was able to track down the bug that occasionally happened when
UseServerSidePrepare was enabled: the driver is writing past allocated memory.
The bug is in ResolveOneParam(). At one point this function writes directly
into the allocated buffer <qb->query_statement> _without_ checking the
allocated size by calling enlarge_query_statement().
I have added the ENLARGE_NEWSTATEMENT() call which should take care of this
bug (see attached patch).
Rainer
Index: convert.c
===================================================================
RCS file: /cvsroot/psqlodbc/psqlodbc/convert.c,v
retrieving revision 1.161
diff -u -r1.161 convert.c
--- convert.c 4 Jun 2007 10:24:49 -0000 1.161
+++ convert.c 16 Jul 2007 09:52:51 -0000
@@ -3459,6 +3472,7 @@
} */
if (req_bind)
{
+ ENLARGE_NEWSTATEMENT( qb, (qb->npos+4) );
npos = qb->npos;
qb->npos += 4;
}