Re: [INTERFACES] BUG in PgODBC found/fixed (win32) - Mailing list pgsql-interfaces

Sam,

Good job!  I'd forgot about that hack ;)

I put it in the cvs source tree and it will be in my next build.

Byron

Sam O'Connor wrote:
> 
> The lo id is currently stored in the parameter EXEC_buffer pointer
> with a cast, and is pulled out again later when it is needed.
> Bit of a hack but it works.
> Later on if EXEC_buffer is not NULL it is freed. Opps.
> The fix is just to check for type SQL_LONGVARBINARY before
> doing the deallocation.
> 
> I'm not sure who the current maintainer is, I've just been happily using
> the stuff recently without having to do any work on it. Yey :)
> Should I just be putting fixes like this straight into CVS?
> If so where can I get access.
> 
> - Sam
> 
> BTW. Is anyone else using postgres large objects through ODBC in
> windows?
> 
> Here are some diffs:
> 
> diff -c -r pgodbc_vendor/bind.c pgodbc/bind.c
> *** pgodbc_vendor/bind.c        Fri Jan 08 10:32:46 1999
> --- pgodbc/bind.c       Sat Oct 23 13:08:50 1999
> ***************
> *** 123,131 ****
>                 stmt->parameters[ipar].EXEC_used = NULL;
>         }
> 
> !       if (stmt->parameters[ipar].EXEC_buffer) {
> !               free(stmt->parameters[ipar].EXEC_buffer);
>                 stmt->parameters[ipar].EXEC_buffer = NULL;
>         }
> 
>         /*      Data at exec macro only valid for C char/binary data */
> --- 123,135 ----
>                 stmt->parameters[ipar].EXEC_used = NULL;
>         }
> 
> !       if ( stmt->parameters[ipar].SQLType == SQL_LONGVARBINARY) {
>                 stmt->parameters[ipar].EXEC_buffer = NULL;
> +       } else {
> +               if (stmt->parameters[ipar].EXEC_buffer) {
> +                       free(stmt->parameters[ipar].EXEC_buffer);
> +                       stmt->parameters[ipar].EXEC_buffer = NULL;
> +               }
>         }
> 
>         /*      Data at exec macro only valid for C char/binary data */
> diff -c -r pgodbc_vendor/statement.c pgodbc/statement.c
> *** pgodbc_vendor/statement.c   Thu Sep 02 22:08:04 1999
> --- pgodbc/statement.c  Sat Oct 23 13:07:24 1999
> ***************
> *** 326,334 ****
>                                 self->parameters[i].EXEC_used = NULL;
>                         }
> 
> !                       if (self->parameters[i].EXEC_buffer) {
> !                               free(self->parameters[i].EXEC_buffer);
>                                 self->parameters[i].EXEC_buffer = NULL;
>                         }
>                 }
>         }
> --- 326,338 ----
>                                 self->parameters[i].EXEC_used = NULL;
>                         }
> 
> !                       if ( self->parameters[i].SQLType == SQL_LONGVARBINARY) {
>                                 self->parameters[i].EXEC_buffer = NULL;
> +                       } else {
> +                               if (self->parameters[i].EXEC_buffer) {
> +                                       free(self->parameters[i].EXEC_buffer);
> +                                       self->parameters[i].EXEC_buffer = NULL;
> +                               }
>                         }
>                 }
>         }
> 
> ************