/*
 *  prepare.c
 *
 *  $Id$
 *
 *  Prepare a query
 *
 *  The iODBC driver manager.
 *
 *  Copyright (C) 1995 Ke Jin <kejin@empress.com>
 *  Copyright (C) 1996-2021 OpenLink Software <iodbc@openlinksw.com>
 *  All Rights Reserved.
 *
 *  This software is released under the terms of either of the following
 *  licenses:
 *
 *      - GNU Library General Public License (see LICENSE.LGPL)
 *      - The BSD License (see LICENSE.BSD).
 *
 *  Note that the only valid version of the LGPL license as far as this
 *  project is concerned is the original GNU Library General Public License
 *  Version 2, dated June 1991.
 *
 *  While not mandated by the BSD license, any patches you make to the
 *  iODBC source code may be contributed back into the iODBC project
 *  at your discretion. Contributions will benefit the Open Source and
 *  Data Access community as a whole. Submissions may be made at:
 *
 *      http://www.iodbc.org
 *
 *
 *  GNU Library Generic Public License Version 2
 *  ============================================
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; only
 *  Version 2 of the License dated June 1991.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public
 *  License along with this library; if not, write to the Free
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *
 *  The BSD License
 *  ===============
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *  3. Neither the name of OpenLink Software Inc. nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL OPENLINK OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


#include <iodbc.h>

#include <sql.h>
#include <sqlext.h>
#include <sqlucode.h>

#include "unicode.h"

#include "dlproc.h"

#include "herr.h"
#include "henv.h"
#include "hdbc.h"
#include "hstmt.h"

#include "itrace.h"

SQLRETURN SQL_API
SQLPrepare_Internal (
    SQLHSTMT hstmt,
    SQLPOINTER szSqlStr,
    SQLINTEGER cbSqlStr,
    SQLCHAR waMode)
{
  STMT (pstmt, hstmt);
  CONN (pdbc, pstmt->hdbc);
  ENVR (penv, pdbc->henv);
  HPROC hproc = SQL_NULL_HPROC;
  SQLRETURN retcode = SQL_SUCCESS;
  sqlstcode_t sqlstat = en_00000;
  void * _SqlStr = NULL;
  CONV_DIRECT conv_direct = CD_NONE;
  DM_CONV *conv = &pdbc->conv;

  /* check state */
  if (pstmt->asyn_on == en_NullProc)
    {
      /* not on asyn state */
      switch (pstmt->state)
	{
	case en_stmt_fetched:
	case en_stmt_xfetched:
	  sqlstat = en_24000;
	  break;

	case en_stmt_needdata:
	case en_stmt_mustput:
	case en_stmt_canput:
	  sqlstat = en_S1010;
	  break;

	default:
	  break;
	}
    }
  else if (pstmt->asyn_on != en_Prepare)
    {
      /* asyn on other */
      sqlstat = en_S1010;
    }

  if (sqlstat != en_00000)
    {
      PUSHSQLERR (pstmt->herr, sqlstat);

      return SQL_ERROR;
    }

  if (szSqlStr == NULL)
    {
      PUSHSQLERR (pstmt->herr, en_S1009);

      return SQL_ERROR;
    }

  if (cbSqlStr < 0 && cbSqlStr != SQL_NTS)
    {
      PUSHSQLERR (pstmt->herr, en_S1090);

      return SQL_ERROR;
    }

  if (penv->unicode_driver && waMode != 'W')
    conv_direct = CD_A2W;
  else if (!penv->unicode_driver && waMode == 'W')
    conv_direct = CD_W2A;
  else if (waMode == 'W' && conv->dm_cp!=conv->drv_cp)
    conv_direct = CD_W2W;

  if (conv_direct != CD_NONE)
    {
      /* sql text is stored as param with id=0 */
      _SqlStr = _iodbcdm_conv_var(pstmt, 0, szSqlStr, cbSqlStr, conv_direct);
      szSqlStr = _SqlStr;
      cbSqlStr = SQL_NTS;
    }

  CALL_UDRIVER(pstmt->hdbc, pstmt, retcode, hproc, penv->unicode_driver, 
    en_Prepare, (
       pstmt->dhstmt,
       szSqlStr,
       cbSqlStr));

  if (hproc == SQL_NULL_HPROC)
    {
      _iodbcdm_FreeStmtVars(pstmt);
      PUSHSQLERR (pstmt->herr, en_IM001);
      return SQL_ERROR;
    }

  if (retcode != SQL_STILL_EXECUTING)
    _iodbcdm_FreeStmtVars(pstmt);

  /* stmt state transition */
  if (pstmt->asyn_on == en_Prepare)
    {
      switch (retcode)
	{
	case SQL_SUCCESS:
	case SQL_SUCCESS_WITH_INFO:
	case SQL_ERROR:
	  pstmt->asyn_on = en_NullProc;
	   return retcode;

	case SQL_STILL_EXECUTING:
	default:
	   return retcode;
	}
    }

  switch (retcode)
    {
    case SQL_STILL_EXECUTING:
      pstmt->asyn_on = en_Prepare;
      break;

    case SQL_SUCCESS:
    case SQL_SUCCESS_WITH_INFO:
      pstmt->state = en_stmt_prepared;
      pstmt->prep_state = 1;
      break;

    case SQL_ERROR:
      switch (pstmt->state)
	{
	case en_stmt_prepared:
	case en_stmt_executed_with_info:
	case en_stmt_executed:
	  pstmt->state = en_stmt_allocated;
	  pstmt->prep_state = 0;
	  break;

	default:
	  break;
	}

    default:
      break;
    }

  return retcode;
}


SQLRETURN SQL_API
SQLPrepare (SQLHSTMT hstmt,
    SQLCHAR * szSqlStr,
    SQLINTEGER cbSqlStr)
{
  ENTER_STMT (hstmt,
    trace_SQLPrepare (TRACE_ENTER, hstmt, szSqlStr, cbSqlStr));

  retcode = SQLPrepare_Internal(hstmt, szSqlStr, cbSqlStr, 'A');

  LEAVE_STMT (hstmt,
    trace_SQLPrepare (TRACE_LEAVE, hstmt, szSqlStr, cbSqlStr));
}


#if ODBCVER >= 0x0300
SQLRETURN SQL_API
SQLPrepareA (SQLHSTMT hstmt,
    SQLCHAR * szSqlStr,
    SQLINTEGER cbSqlStr)
{
  ENTER_STMT (hstmt,
    trace_SQLPrepare (TRACE_ENTER, hstmt, szSqlStr, cbSqlStr));

  retcode = SQLPrepare_Internal(hstmt, szSqlStr, cbSqlStr, 'A');

  LEAVE_STMT (hstmt,
    trace_SQLPrepare (TRACE_LEAVE, hstmt, szSqlStr, cbSqlStr));
}


SQLRETURN SQL_API
SQLPrepareW (SQLHSTMT hstmt,
    SQLWCHAR * szSqlStr,
    SQLINTEGER cbSqlStr)
{
  ENTER_STMT (hstmt,
    trace_SQLPrepareW (TRACE_ENTER, hstmt, szSqlStr, cbSqlStr));

  retcode = SQLPrepare_Internal(hstmt, szSqlStr, cbSqlStr, 'W');

  LEAVE_STMT (hstmt,
    trace_SQLPrepareW (TRACE_LEAVE, hstmt, szSqlStr, cbSqlStr));
}
#endif


SQLRETURN SQL_API
SQLSetCursorName_Internal (
    SQLHSTMT hstmt,
    SQLPOINTER szCursor,
    SQLSMALLINT cbCursor,
    SQLCHAR waMode)
{
  STMT (pstmt, hstmt);
  CONN (pdbc, pstmt->hdbc);
  ENVR (penv, pdbc->henv);
  HPROC hproc = SQL_NULL_HPROC;
  SQLRETURN retcode = SQL_SUCCESS;
  sqlstcode_t sqlstat = en_00000;
  void * _Cursor = NULL;
  CONV_DIRECT conv_direct = CD_NONE;
  DM_CONV *conv = &pdbc->conv;

  if (szCursor == NULL)
    {
      PUSHSQLERR (pstmt->herr, en_S1009);

      return SQL_ERROR;
    }

  if (cbCursor < 0 && cbCursor != SQL_NTS)
    {
      PUSHSQLERR (pstmt->herr, en_S1090);

      return SQL_ERROR;
    }

  /* check state */
  if (pstmt->asyn_on != en_NullProc)
    {
      sqlstat = en_S1010;
    }
  else
    {
      switch (pstmt->state)
	{
	case en_stmt_executed_with_info:
	case en_stmt_executed:
	case en_stmt_cursoropen:
	case en_stmt_fetched:
	case en_stmt_xfetched:
	  sqlstat = en_24000;
	  break;

	case en_stmt_needdata:
	case en_stmt_mustput:
	case en_stmt_canput:
	  sqlstat = en_S1010;
	  break;

	default:
	  break;
	}
    }

  if (sqlstat != en_00000)
    {
      PUSHSQLERR (pstmt->herr, sqlstat);

      return SQL_ERROR;
    }

  if (penv->unicode_driver && waMode != 'W')
    conv_direct = CD_A2W;
  else if (!penv->unicode_driver && waMode == 'W')
    conv_direct = CD_W2A;
  else if (waMode == 'W' && conv->dm_cp!=conv->drv_cp)
    conv_direct = CD_W2W;

  if (conv_direct != CD_NONE)
    {
      _Cursor = conv_text_m2d (conv, szCursor, cbCursor, conv_direct);
      szCursor = _Cursor;
      cbCursor = SQL_NTS;
    }

  CALL_UDRIVER(pstmt->hdbc, pstmt, retcode, hproc, penv->unicode_driver, 
    en_SetCursorName, (
       pstmt->dhstmt,
       szCursor,
       cbCursor));

  MEM_FREE(_Cursor);

  if (hproc == SQL_NULL_HPROC)
    {
      PUSHSQLERR (pstmt->herr, en_IM001);

      return SQL_ERROR;
    }

  if (SQL_SUCCEEDED (retcode))
    {
      pstmt->cursor_state = en_stmt_cursor_named;
    }

  return retcode;
}


SQLRETURN SQL_API
SQLSetCursorName (
    SQLHSTMT		  hstmt,
    SQLCHAR		* szCursor,
    SQLSMALLINT		  cbCursor)
{
  ENTER_STMT (hstmt,
    trace_SQLSetCursorName (TRACE_ENTER, hstmt, szCursor, cbCursor));

  retcode = SQLSetCursorName_Internal(hstmt, szCursor, cbCursor, 'A');

  LEAVE_STMT (hstmt,
    trace_SQLSetCursorName (TRACE_LEAVE, hstmt, szCursor, cbCursor));
}


#if ODBCVER >= 0x0300
SQLRETURN SQL_API
SQLSetCursorNameA (
    SQLHSTMT		  hstmt,
    SQLCHAR		* szCursor,
    SQLSMALLINT		  cbCursor)
{
  ENTER_STMT (hstmt,
    trace_SQLSetCursorName (TRACE_ENTER, hstmt, szCursor, cbCursor));

  retcode = SQLSetCursorName_Internal(hstmt, szCursor, cbCursor, 'A');

  LEAVE_STMT (hstmt,
    trace_SQLSetCursorName (TRACE_LEAVE, hstmt, szCursor, cbCursor));
}


SQLRETURN SQL_API
SQLSetCursorNameW (
  SQLHSTMT		  hstmt,
  SQLWCHAR 		* szCursor,
  SQLSMALLINT		  cbCursor)
{
  ENTER_STMT (hstmt,
    trace_SQLSetCursorNameW (TRACE_ENTER, hstmt, szCursor, cbCursor));

  retcode = SQLSetCursorName_Internal(hstmt, szCursor, cbCursor, 'W');

  LEAVE_STMT (hstmt,
    trace_SQLSetCursorNameW (TRACE_LEAVE, hstmt, szCursor, cbCursor));
}
#endif


static SQLRETURN
SQLBindParameter_Internal (
    SQLHSTMT		  hstmt,
    SQLUSMALLINT	  ipar,
    SQLSMALLINT		  fParamType,
    SQLSMALLINT		  fCType,
    SQLSMALLINT		  fSqlType,
    SQLULEN		  cbColDef,
    SQLSMALLINT		  ibScale,
    SQLPOINTER		  rgbValue,
    SQLLEN		  cbValueMax,
    SQLLEN		* pcbValue)
{
  STMT (pstmt, hstmt);
  CONN (pdbc, pstmt->hdbc);
  ENVR (penv, pdbc->henv);
  HPROC hproc2 = SQL_NULL_HPROC;
  HPROC hproc3 = SQL_NULL_HPROC;
  SQLSMALLINT nCType;
  SQLSMALLINT nSqlType;
  sqlstcode_t sqlstat = en_00000;
  SQLRETURN retcode = SQL_SUCCESS;
  SQLUINTEGER odbc_ver = ((GENV_t *) pdbc->genv)->odbc_ver;
  SQLUINTEGER dodbc_ver = ((ENV_t *) pdbc->henv)->dodbc_ver;
  PPARM newparam;
  TPARM parm;
  int size = 0;

#if (ODBCVER >= 0x0300)
  if (0)
#else
  /* check param */
  if (fSqlType > SQL_TYPE_MAX ||
      (fSqlType < SQL_TYPE_MIN && fSqlType > SQL_TYPE_DRIVER_START))
    /* Note: SQL_TYPE_DRIVER_START is a negative number 
     * So, we use ">" */
#endif
    {
      sqlstat = en_S1004;
    }
  else if (ipar < 1)
    {
      sqlstat = en_S1093;
    }
  else if ((rgbValue == NULL && pcbValue == NULL)
      && fParamType != SQL_PARAM_OUTPUT)
    {
      sqlstat = en_S1009;
      /* This means, I allow output to nowhere
       * (i.e. * junk output result). But I can't  
       * allow input from nowhere. 
       */
    }
/**********
	else if( cbValueMax < 0L && cbValueMax != SQL_SETPARAM_VALUE_MAX )
	{
		sqlstat = en_S1090;
	}
**********/
  else if (fParamType != SQL_PARAM_INPUT
	&& fParamType != SQL_PARAM_OUTPUT
      && fParamType != SQL_PARAM_INPUT_OUTPUT)
    {
      sqlstat = en_S1105;
    }
  else
    {
      switch (fCType)
	{
	case SQL_C_DEFAULT:
	case SQL_C_BINARY:
	case SQL_C_BIT:
	case SQL_C_CHAR:
	case SQL_C_DATE:
	case SQL_C_DOUBLE:
	case SQL_C_FLOAT:
	case SQL_C_LONG:
	case SQL_C_SHORT:
	case SQL_C_SLONG:
	case SQL_C_SSHORT:
	case SQL_C_STINYINT:
	case SQL_C_TIME:
	case SQL_C_TIMESTAMP:
	case SQL_C_TINYINT:
	case SQL_C_ULONG:
	case SQL_C_USHORT:
	case SQL_C_UTINYINT:
#if (ODBCVER >= 0x0300)
	case SQL_C_GUID:
	case SQL_C_INTERVAL_DAY:
	case SQL_C_INTERVAL_DAY_TO_HOUR:
	case SQL_C_INTERVAL_DAY_TO_MINUTE:
	case SQL_C_INTERVAL_DAY_TO_SECOND:
	case SQL_C_INTERVAL_HOUR:
	case SQL_C_INTERVAL_HOUR_TO_MINUTE:
	case SQL_C_INTERVAL_HOUR_TO_SECOND:
	case SQL_C_INTERVAL_MINUTE:
	case SQL_C_INTERVAL_MINUTE_TO_SECOND:
	case SQL_C_INTERVAL_MONTH:
	case SQL_C_INTERVAL_SECOND:
	case SQL_C_INTERVAL_YEAR:
	case SQL_C_INTERVAL_YEAR_TO_MONTH:
	case SQL_C_NUMERIC:
	case SQL_C_SBIGINT:
	case SQL_C_TYPE_DATE:
	case SQL_C_TYPE_TIME:
	case SQL_C_TYPE_TIMESTAMP:
	case SQL_C_UBIGINT:
	case SQL_C_WCHAR:
#endif
	  break;

	default:
	  sqlstat = en_S1003;
	  break;
	}
    }

  if (sqlstat != en_00000)
    {
      PUSHSQLERR (pstmt->herr, sqlstat);

      return SQL_ERROR;
    }

  /* check state */
  if (pstmt->state >= en_stmt_needdata || pstmt->asyn_on != en_NullProc)
    {
      PUSHSQLERR (pstmt->herr, en_S1010);

      retcode = SQL_ERROR;
    }

  /*
   *  Convert C type to ODBC version of driver
   */
  nCType = _iodbcdm_map_c_type (fCType, penv->dodbc_ver);

  /*
   *  Convert SQL type to ODBC version of driver
   */
  nSqlType = _iodbcdm_map_sql_type (fSqlType, penv->dodbc_ver);

  hproc2 = _iodbcdm_getproc (pstmt->hdbc, en_BindParameter);
#if (ODBCVER >=0x0300)
  hproc3 = _iodbcdm_getproc (pstmt->hdbc, en_BindParam);
#endif

  parm.pm_par = ipar;
  parm.pm_c_type = nCType;
  parm.pm_c_type_orig = nCType;
  parm.pm_sql_type = fSqlType;
  parm.pm_precision = cbColDef;
  parm.pm_scale = ibScale;
  parm.pm_data = rgbValue;
  parm.pm_pOctetLength = pcbValue;
  parm.pm_pInd = pcbValue;
  parm.pm_size = size;
  parm.pm_usage = fParamType;
  parm.pm_cbValueMax = cbValueMax;
  parm.pm_tmp = NULL;
  parm.pm_tmp_Ind = NULL;
  parm.pm_conv_data = NULL;
  parm.pm_conv_pInd = NULL;
  parm.pm_conv_el_size = 0;
  parm.rebinded = FALSE;

#if (ODBCVER >=0x0300)
  if (fCType == SQL_C_WCHAR && !penv->unicode_driver
      && pcbValue && *pcbValue != SQL_DATA_AT_EXEC)
    nCType = SQL_C_CHAR;
#endif

  if (ipar < 1 || ipar > STMT_MAX_PARAM)
    {
      PUSHSQLERR (pstmt->herr, en_S1093);
      return SQL_ERROR;
    }

  if (ipar > pstmt->st_nparam)
    {
      size_t newsize = ipar + 10;
      if (newsize > STMT_MAX_PARAM)
        newsize = STMT_MAX_PARAM;
      if ((newparam = calloc (newsize, sizeof (TPARM))) == NULL)
	{
          PUSHSQLERR (pstmt->herr, en_S1001);
          return SQL_ERROR;
	}
      if (pstmt->st_pparam)
	{
	  memcpy (newparam, pstmt->st_pparam, pstmt->st_nparam * sizeof (TPARM));
	  free (pstmt->st_pparam);
	}
      pstmt->st_pparam = newparam;
      pstmt->st_nparam = (SQLUSMALLINT) newsize;
    }

  pstmt->st_pparam[ipar-1] = parm;


  if (odbc_ver == SQL_OV_ODBC2 && 
      (  dodbc_ver == SQL_OV_ODBC2
       || (dodbc_ver == SQL_OV_ODBC3 && hproc2 != SQL_NULL_HPROC)))
    hproc3 = SQL_NULL_HPROC;

#if (ODBCVER >=0x0300)
  if (fParamType == SQL_PARAM_INPUT && hproc2 == SQL_NULL_HPROC
      && hproc3 != SQL_NULL_HPROC)
    {
      CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc3,
	      (pstmt->dhstmt, ipar, nCType, nSqlType, cbColDef,
	      ibScale, rgbValue, pcbValue));
    }
  else
#endif
    {
      if (hproc2 == SQL_NULL_HPROC)
        {
          PUSHSQLERR (pstmt->herr, en_IM001);
          return SQL_ERROR;
        }
      CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc2,
          (pstmt->dhstmt, ipar, fParamType, nCType, nSqlType, cbColDef,
	  ibScale, rgbValue, cbValueMax, pcbValue));
    }

  return retcode;
}


SQLRETURN SQL_API
SQLBindParameter (
    SQLHSTMT		  hstmt,
    SQLUSMALLINT	  ipar,
    SQLSMALLINT		  fParamType,
    SQLSMALLINT		  fCType,
    SQLSMALLINT		  fSqlType,
    SQLULEN		  cbColDef,
    SQLSMALLINT		  ibScale,
    SQLPOINTER		  rgbValue,
    SQLLEN		  cbValueMax,
    SQLLEN		* pcbValue)
{
  ENTER_STMT (hstmt,
    trace_SQLBindParameter (TRACE_ENTER,
	hstmt, ipar, fParamType, fCType, fSqlType, cbColDef,
	ibScale, rgbValue, cbValueMax, pcbValue));

  retcode = SQLBindParameter_Internal (
	hstmt, ipar, fParamType, fCType, fSqlType, cbColDef,
	ibScale, rgbValue, cbValueMax, pcbValue);

  LEAVE_STMT (hstmt,
    trace_SQLBindParameter (TRACE_LEAVE,
	hstmt, ipar, fParamType, fCType, fSqlType, cbColDef,
	ibScale, rgbValue, cbValueMax, pcbValue));
}


static SQLRETURN 
SQLParamOptions_Internal (
  SQLHSTMT		  hstmt,
  SQLULEN		  crow,
  SQLULEN 		* pirow)
{
  STMT (pstmt, hstmt);
  HPROC hproc2 = SQL_NULL_HPROC;
  HPROC hproc3 = SQL_NULL_HPROC;
  SQLRETURN retcode;
  CONN (pdbc, pstmt->hdbc);
  SQLUINTEGER odbc_ver = ((GENV_t *) pdbc->genv)->odbc_ver;
  SQLUINTEGER dodbc_ver = ((ENV_t *) pdbc->henv)->dodbc_ver;

  if (crow == (SQLULEN) 0UL)
    {
      PUSHSQLERR (pstmt->herr, en_S1107);

      return SQL_ERROR;
    }

  if (pstmt->state >= en_stmt_needdata || pstmt->asyn_on != en_NullProc)
    {
      PUSHSQLERR (pstmt->herr, en_S1010);

      return SQL_ERROR;
    }


  hproc2 = _iodbcdm_getproc (pstmt->hdbc, en_ParamOptions);
#if (ODBCVER >= 0x0300)
  hproc3 = _iodbcdm_getproc (pstmt->hdbc, en_SetStmtAttr);
#endif

  if (odbc_ver == SQL_OV_ODBC2 && 
      (  dodbc_ver == SQL_OV_ODBC2
       || (dodbc_ver == SQL_OV_ODBC3 && hproc2 != SQL_NULL_HPROC)))
    hproc3 = SQL_NULL_HPROC;

#if (ODBCVER >= 0x0300)
  if (hproc3 != SQL_NULL_HPROC)
    {
      CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc3,
	  (pstmt->dhstmt, SQL_ATTR_PARAMSET_SIZE, crow, 0));
      if (SQL_SUCCEEDED (retcode))
	{
	  CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc3,
	      (pstmt->dhstmt, SQL_ATTR_PARAMS_PROCESSED_PTR, pirow, 0));
	}
    }
  else
#endif
    {
      if (hproc2 == SQL_NULL_HPROC)
	{
	  PUSHSQLERR (pstmt->herr, en_IM001);
	  return SQL_ERROR;
	}

      CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc2,
	  (pstmt->dhstmt, crow, pirow));
    }

  pstmt->paramset_size = crow;
  return retcode;
}


SQLRETURN SQL_API
SQLParamOptions(
  SQLHSTMT		  hstmt,
  SQLULEN		  crow,
  SQLULEN 		* pirow)
{
  ENTER_STMT (hstmt,
    trace_SQLParamOptions (TRACE_ENTER, hstmt, crow, pirow));

  retcode = SQLParamOptions_Internal (hstmt, crow, pirow);

  LEAVE_STMT (hstmt,
    trace_SQLParamOptions (TRACE_LEAVE, hstmt, crow, pirow));
}


static SQLRETURN
SQLSetScrollOptions_Internal (
  SQLHSTMT		  hstmt,
  SQLUSMALLINT		  fConcurrency,
  SQLLEN		  crowKeyset,
  SQLUSMALLINT		  crowRowset)
{
  STMT (pstmt, hstmt);
  CONN (pdbc, pstmt->hdbc);
  HPROC hproc = SQL_NULL_HPROC;
  sqlstcode_t sqlstat = en_00000;
  SQLRETURN retcode = SQL_SUCCESS;
  SQLUINTEGER odbc_ver = ((GENV_t *) pdbc->genv)->odbc_ver;
  SQLUINTEGER dodbc_ver = ((ENV_t *) pdbc->henv)->dodbc_ver;

  for (;;)
    {
      if (crowRowset == (UWORD) 0)
	{
	  sqlstat = en_S1107;
	  break;
	}

      if (crowKeyset > (SDWORD) 0L && crowKeyset < (SDWORD) crowRowset)
	{
	  sqlstat = en_S1107;
	  break;
	}

      if (crowKeyset < 1)
	{
	  if (crowKeyset != SQL_SCROLL_FORWARD_ONLY
	      && crowKeyset != SQL_SCROLL_STATIC
	      && crowKeyset != SQL_SCROLL_KEYSET_DRIVEN
	      && crowKeyset != SQL_SCROLL_DYNAMIC)
	    {
	      sqlstat = en_S1107;
	      break;
	    }
	}

      if (fConcurrency != SQL_CONCUR_READ_ONLY
	  && fConcurrency != SQL_CONCUR_LOCK
	  && fConcurrency != SQL_CONCUR_ROWVER
	  && fConcurrency != SQL_CONCUR_VALUES)
	{
	  sqlstat = en_S1108;
	  break;
	}

#if (ODBCVER < 0x0300)
      if (pstmt->state != en_stmt_allocated)
	{
	  sqlstat = en_S1010;
	  break;
	}
#endif

      hproc = _iodbcdm_getproc (pstmt->hdbc, en_SetScrollOptions);

      if (dodbc_ver == SQL_OV_ODBC3 &&  odbc_ver == SQL_OV_ODBC3)
        hproc = SQL_NULL_HPROC;

      if (hproc != SQL_NULL_HPROC)
        {
	  CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc,
	      (pstmt->dhstmt, fConcurrency, crowKeyset, crowRowset));
	}
      else
        {
#if (ODBCVER >= 0x0300)
	  SQLINTEGER InfoValue, InfoType, Value;
	  HPROC hproc1 = _iodbcdm_getproc (pstmt->hdbc, en_SetStmtAttr);
	  HPROC hproc2 = _iodbcdm_getproc (pstmt->hdbc, en_GetInfo);

	  if (hproc1 == SQL_NULL_HPROC || hproc2 == SQL_NULL_HPROC)
	    {
	      PUSHSQLERR (pstmt->herr, en_IM001);
	      return SQL_ERROR;
	    }

	  switch (crowKeyset)
	    {
	    case SQL_SCROLL_FORWARD_ONLY:
	      InfoType = SQL_FORWARD_ONLY_CURSOR_ATTRIBUTES2;
	      Value = SQL_CURSOR_FORWARD_ONLY;
	      break;

	    case SQL_SCROLL_STATIC:
	      InfoType = SQL_STATIC_CURSOR_ATTRIBUTES2;
	      Value = SQL_CURSOR_STATIC;
	      break;

	    case SQL_SCROLL_DYNAMIC:
	      InfoType = SQL_DYNAMIC_CURSOR_ATTRIBUTES2;
	      Value = SQL_CURSOR_DYNAMIC;
	      break;

	    case SQL_SCROLL_KEYSET_DRIVEN:
	    default:
	      InfoType = SQL_KEYSET_CURSOR_ATTRIBUTES2;
	      Value = SQL_CURSOR_KEYSET_DRIVEN;
	      break;
	    }

	  CALL_DRIVER (pstmt->hdbc, pdbc, retcode, hproc2,
	      (pdbc->dhdbc, InfoType, &InfoValue, 0, NULL));

	  if (retcode != SQL_SUCCESS)
	    {
	      return retcode;
	    }

	  switch (fConcurrency)
	    {
	    case SQL_CONCUR_READ_ONLY:
	      if (!(InfoValue & SQL_CA2_READ_ONLY_CONCURRENCY))
		{
		  PUSHSQLERR (pstmt->herr, en_S1C00);
		  return SQL_ERROR;
		}
	      break;

	    case SQL_CONCUR_LOCK:
	      if (!(InfoValue & SQL_CA2_LOCK_CONCURRENCY))
		{
		  PUSHSQLERR (pstmt->herr, en_S1C00);
		  return SQL_ERROR;
		}
	      break;

	    case SQL_CONCUR_ROWVER:
	      if (!(InfoValue & SQL_CA2_OPT_ROWVER_CONCURRENCY))
		{
		  PUSHSQLERR (pstmt->herr, en_S1C00);
		  return SQL_ERROR;
		}
	      break;

	    case SQL_CONCUR_VALUES:
	      if (!(InfoValue & SQL_CA2_OPT_VALUES_CONCURRENCY))
		{
		  PUSHSQLERR (pstmt->herr, en_S1C00);
		  return SQL_ERROR;
		}
	      break;
	    }

	  CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc1,
	      (pstmt->dhstmt, SQL_ATTR_CURSOR_TYPE, Value, 0));

	  if (retcode != SQL_SUCCESS)
	    return retcode;

	  CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc1,
	      (pstmt->dhstmt, SQL_ATTR_CONCURRENCY, fConcurrency, 0));

	  if (retcode != SQL_SUCCESS)
	    return retcode;

	  if (crowKeyset > 0)
	    {
	      CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc1,
		  (pstmt->dhstmt, SQL_ATTR_KEYSET_SIZE, crowKeyset, 0));

	      if (retcode != SQL_SUCCESS)
		return retcode;
	    }

	  CALL_DRIVER (pstmt->hdbc, pstmt, retcode, hproc1,
	      (pstmt->dhstmt, SQL_ROWSET_SIZE, crowRowset, 0));

	  if (retcode != SQL_SUCCESS)
	    return retcode;
#else
	  sqlstat = en_IM001;
	  break;
#endif
	}

      sqlstat = en_00000;
      if (1)			/* turn off solaris warning message */
	break;
    }

  if (sqlstat != en_00000)
    {
      PUSHSQLERR (pstmt->herr, sqlstat);

      return SQL_ERROR;
    }

  return retcode;
}


SQLRETURN SQL_API
SQLSetScrollOptions (
  SQLHSTMT		  hstmt,
  SQLUSMALLINT		  fConcurrency,
  SQLLEN		  crowKeyset,
  SQLUSMALLINT		  crowRowset)
{
  ENTER_STMT (hstmt,
    trace_SQLSetScrollOptions (TRACE_ENTER,
    	hstmt,
	fConcurrency,
	crowKeyset,
	crowRowset));

  retcode = SQLSetScrollOptions_Internal (
    	hstmt,
	fConcurrency,
	crowKeyset,
	crowRowset);

  LEAVE_STMT (hstmt,
    trace_SQLSetScrollOptions (TRACE_LEAVE,
    	hstmt,
	fConcurrency,
	crowKeyset,
	crowRowset));
}


SQLRETURN SQL_API
SQLSetParam (
  SQLHSTMT		  hstmt,
  SQLUSMALLINT		  ipar,
  SQLSMALLINT		  fCType,
  SQLSMALLINT		  fSqlType,
  SQLULEN		  cbColDef,
  SQLSMALLINT		  ibScale,
  SQLPOINTER		  rgbValue,
  SQLLEN 		* pcbValue)
{
  return SQLBindParameter (hstmt,
      ipar,
      (SWORD) SQL_PARAM_INPUT_OUTPUT,
      fCType,
      fSqlType,
      cbColDef,
      ibScale,
      rgbValue,
      SQL_SETPARAM_VALUE_MAX,
      pcbValue);
}
