/*******************************************************************************
**                                                                        
** Source File Name = native.c  1.3                                      
**                                                                        
** Licensed Materials - Property of IBM                                   
**                                                                        
** (C) COPYRIGHT International Business Machines Corp. 1995, 1999
** All Rights Reserved.                                                   
**                                                                        
** US Government Users Restricted Rights - Use, duplication or            
** disclosure restricted by GSA ADP Schedule Contract with IBM Corp.      
**                                                                        
**                                                                        
**    PURPOSE :                                                           
**     Example using SQLNativeSql and SQLNumParams.
**     This sample prompts for an SQL statement, prepares it and then
**     calls SQLNativeSql and SQLNumParams and displays the results, the
**     statement is NOT executed.
**     To get meaningful output, a statement containing parameter markers,
**     and/or Vendor Escape Clauses should be entered.
**                                                                        
** For more information about these samples see the README file.
**
** For more information on programming in CLI see the:
**     - "Building CLI Applications" section of the Application Building Guide, and the
**     - CLI Guide and Reference.
**
** For more information on the SQL language see the SQL Reference.
**
*******************************************************************************/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlcli1.h>
#include "samputil.h"          /* Header file for CLI sample code */

/* For the Macintosh environment when generating 68K applications */
#ifdef DB268K
   /* Need to include ASLM for 68K applications */
   #include <LibraryManager.h>
#endif

#define MAX_STMT_LEN 255

/*
 Global Variables for user id and password.
 To keep samples simple, not a recommended practice.
*/
extern SQLCHAR server[SQL_MAX_DSN_LENGTH + 1] ;
extern SQLCHAR uid[MAX_UID_LENGTH + 1] ;
extern SQLCHAR pwd[MAX_PWD_LENGTH + 1] ;

/*******************************************************************
** main
*******************************************************************/

int main( int argc, char * argv[] ) {

    SQLHANDLE henv, hdbc, hstmt ;
    SQLRETURN rc ;
/*--> SQLL1X46.SCRIPT */
    SQLCHAR in_stmt[1024], out_stmt[1024] ;
    SQLSMALLINT pcPar ;
    SQLINTEGER indicator ;
/*<-- */

/* For the Macintosh environment when generating 68K applications */
#ifdef DB268K
   /* Before making any API calls for 68K environment, need to initialize the
      Library Manager */
   InitLibraryManager(0,kCurrentZone,kNormalMemory);
   atexit(CleanupLibraryManager);
#endif

    /* macro to initalize server, uid and pwd */
    INIT_UID_PWD ;

    /* allocate an environment handle */
    rc = SQLAllocHandle( SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv ) ;
    if ( rc != SQL_SUCCESS ) return( terminate( henv, rc ) ) ;

    /* allocate a connect handle, and connect */
    rc = DBconnect( henv, &hdbc ) ;
    if ( rc != SQL_SUCCESS ) return( terminate( henv, rc ) ) ;

    rc = SQLAllocHandle( SQL_HANDLE_STMT, hdbc, &hstmt ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

/*--> */
    /* Prompt for a statement to prepare */
    printf("Enter an SQL statement: \n");
    gets((char *)in_stmt);
   
    /* prepare the statement */
    rc = SQLPrepare(hstmt, in_stmt, SQL_NTS);
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

    SQLNumParams(hstmt, &pcPar);
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

    SQLNativeSql(hstmt, in_stmt, SQL_NTS, out_stmt, 1024, &indicator);
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

    if ( indicator == SQL_NULL_DATA ) printf( "Invalid statement\n" ) ;
    else {
       printf( "Input Statement: \n %s \n", in_stmt ) ;
       printf( "Output Statement: \n %s \n", in_stmt ) ;
       printf( "Number of Parameter Markers = %d\n", pcPar ) ;
    }

    rc = SQLFreeHandle( SQL_HANDLE_STMT, hstmt ) ;
    CHECK_HANDLE( SQL_HANDLE_STMT, hstmt, rc ) ;

/*<-- */

    rc = SQLEndTran( SQL_HANDLE_DBC, hdbc, SQL_COMMIT ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

    printf( "\n>Disconnecting .....\n" ) ;
    rc = SQLDisconnect( hdbc ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

    rc = SQLFreeHandle( SQL_HANDLE_DBC, hdbc ) ;
    CHECK_HANDLE( SQL_HANDLE_DBC, hdbc, rc ) ;

    rc = SQLFreeHandle( SQL_HANDLE_ENV,  henv ) ;
    if ( rc != SQL_SUCCESS ) return( terminate( henv, rc ) ) ;

    return( SQL_SUCCESS ) ;

}                                 /* end main */