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  • From: Brian Bruns <camber AT ais.org>
  • To: TDS Development Group <freetds AT franklin.metalab.unc.edu>
  • Subject: RE: dbdata() call inconsistent...
  • Date: Wed, 11 Sep 2002 07:22:34 -0400 (EDT)



What's your platform again? Solaris? I'm wondering if we don't have an
alignment bug. Can you provide a backtrace?

Brian

On Wed, 11 Sep 2002, Shivakumar, Pravinkumar (ODC - Satyam) wrote:

> This is what is happenning...
>
> When I use dbdata to get only on int from each row it works coool,but the
> moment I use dbdata with 2 int's from the same row it core dumps,and this
> seems to happen only with INT's cos it works coool with varchar's calling
> dbdata for multiple varchars in the same row...
>
> The problem seems to be with MSSQL,it work perfect with sybase...
>
>
>
> ** CODE SNIPPET**
>
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <assert.h>
> #include <stdio.h>
> #include <sqlfront.h>
> #include <sqldb.h>
>
> int main(int argc, char *argv[])
> {
> LOGINREC *login;
> DBPROCESS *dbproc;
>
> dbinit();
> login = dblogin();
> DBSETLPWD(login,***");
> DBSETLUSER(login,***);
> DBSETLAPP(login,***);
>
> dbproc = dbopen(login,***);
> dbuse(dbproc,****);
> dbcmd(dbproc,"select col1 col2 from tab1"); //here col1 and col2 r
> of type INT
> dbsqlexec(dbproc);
> dbresults(dbproc);
>
> while (dbnextrow(dbproc) != NO_MORE_ROWS)
> {
>
> BYTE * tem1 = dbdata(dbproc,1);
> BYTE * tem2 = dbdata(dbproc,2);
>
> int temp1 = *((int *) tem1);
> int temp2 = *((int *) tem2);
>
> printf(" First INT value : %d\n",temp1);
> printf("Second INT value : %d\n",temp2);
>
> }
>
> dbclose(dbproc);
> dbexit();
> }
>
> Am I missing anything,
> Thanks,
> Pravin Kumar S
>
>
> > ----------
> > From: Marc Spoorendonk[SMTP:Marc.spoorendonk AT Globalocity.com]
> > Reply To: TDS Development Group
> > Sent: Tuesday, September 10, 2002 12:10 PM
> > To: TDS Development Group
> > Subject: [freetds] RE: dbdata() call inconsistent...
> >
> > please post your code snippet to the mailing list. I've used the dbdata()
> > successfully...
> >
> > I'm not sure what level of C knowledge you have, but you understand that
> > an
> > int function argument that needs to be filled should be passed as a
> > pointer
> > to int (by reference) and not as an int value (by value), right?
> >
> > > -----Original Message-----
> > > From: Shivakumar, Pravinkumar (ODC - Satyam)
> > > [mailto:PShivakumar AT Satyam.odc.ml.com]
> > > Sent: Tuesday, September 10, 2002 00:52
> > > To: TDS Development Group
> > > Subject: dbdata() call inconsistent...
> > >
> > > Hi All,
> > >
> > > R there any known issues with dbdata() function call present in the file
> > > dblib.c.
> > > I get a core dump when I invoke it with an int and the behaviour is
> > > inconsistent.
> > > I am currently using FreeTDS 0.53 on SUN SOLARIS 5.6.
> > >
> > > -Pravin Kumar S << File: footer >>
> > >
> > >
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