SQLPutData bug ?

Your name : Mika Mäntylä
Your email address : mmantyla(at)soberit(dot)hut(dot)fi

System Configuration
---------------------
Architecture (example: Intel Pentium) : AMD Athlon

Operating System (example: Linux 2.0.26 ELF) : RH 7.1

PostgreSQL version (example: PostgreSQL-7.1.3): PostgreSQL-7.1.3

Compiler used (example: gcc 2.95.2) : gcc-2.96-97.1 (Used
pre-build binaries)

FULL description of your problem:
------------------------------------------------
We have ODBC application that is currently running on top of commercial
Solid and Sybase databases.With some fixes I got this application to
also work on PSQL on top of W2K. Now I'm trying to get the app to work
in Linux with libiodbc-3.0.5-1 and postgresql-odbc-7.1.3

However there seems to be problem with SQLPutData call. This was already
a problem in W2k with PSQL (ODBC 07_01_0006), and you can see the ugly
fix I made in the code. In Linux the same fix causes the program to get
segmentation fault in st.ParamData call. If I remove the fix the final
st.PutData call in the loop fails.

I think this could be problem related to odbc somehow, but I really
don't know.

-------------------------------------------------------
/**** Code with the problem **************************
else
{
char buf[256];
int got;
pos = 0;
do
{
// This copies data to buffer buf nothing more
got = data->GetData( pos, buf, sizeof(buf) );

#ifdef PSQL
#ifdef WIN32
if (got == 0)
break;
#endif //WIN32
#endif //PSQL

st.PutData( buf, got );
pos += got;
} while( got > 0 );
}
rc = st.ParamData( &pos );

-----------------------------------------------------
/**** PutData call ************************/
void
DBStmt::PutData( void *buf, int bufsize )
{
t_usec = 0;
do
{
rc = SQLPutData( hstmt, buf, bufsize );
} while( rc==SQL_STILL_EXECUTING && SocketOK() );

if( rc!=SQL_SUCCESS )
throw SQLExc( "SQLPutData failed", rc, hdbc, hstmt );
}
-----------------------------------------------------
/**** ParamData call ************************/
int
DBStmt::ParamData( long *val )
{
t_usec = 0;
do
{
rc = SQLParamData( hstmt, (void**)&val );
} while( rc==SQL_STILL_EXECUTING && SocketOK() );

if( rc!=SQL_SUCCESS && rc!=SQL_NEED_DATA )
throw SQLExc( "SQLParamData failed", rc, hdbc, hstmt );

return rc;
}

--
Mika Mäntylä || SoberIT
09-451 6001 || Spektri Kvartti 3330a