/*
**    Name: DescCol.c
**
**    Date: Sun Jan 20 16:41:12 2002
**
*/

#include "ODBCLib.h"
#include "isql.h"
#include "isqlext.h"
#include "kernel.h"

SQLRETURN  SQLDescribeCol(
    SQLHSTMT StatementHandle,
    SQLUSMALLINT ColumnNumber,
    SQLCHAR * ColumnName,
    SQLSMALLINT BufferLength,
    SQLSMALLINT * NameLength,
    SQLSMALLINT * DataType,
    SQLUINTEGER * ColumnSize,
    SQLSMALLINT * DecimalDigits,
    SQLSMALLINT * Nullable)
    {
    _kernel_swi_regs regs;

    int block[3];

/* Wait for ready status */

    if (ODBCLibWait(ODBC_STATE_READY))
        {
        return SQL_ERROR;
        }

/* Store parameters */

    regs.r[0] = SQL_DescribeCol;
    regs.r[1] = (int)StatementHandle;
    regs.r[2] = (int)ColumnNumber;
    regs.r[3] = (int)ColumnName;
    regs.r[4] = (int)BufferLength;
    regs.r[5] = (int)NameLength;
    regs.r[6] = (int)DataType;

    block[0] = (int)ColumnSize;
    block[1] = (int)DecimalDigits;
    block[2] = (int)Nullable;

    regs.r[7] = (int)block;

    _kernel_swi(SQL_ResultInfoP,&regs,&regs);

/* Wait for completion */

    if (ODBCLibWait(ODBC_STATE_COMPLETE))
        {
        return SQL_ERROR;
        }

/* Get results */

    regs.r[0] = SQL_DescribeCol;
    regs.r[1] = (int)StatementHandle;
    regs.r[2] = (int)ColumnNumber;
    regs.r[3] = (int)ColumnName;
    regs.r[4] = (int)BufferLength;
    regs.r[5] = (int)NameLength;
    regs.r[6] = (int)DataType;

    block[0] = (int)ColumnSize;
    block[1] = (int)DecimalDigits;
    block[2] = (int)Nullable;

    regs.r[7] = (int)block;

    _kernel_swi(SQL_ResultInfo,&regs,&regs);

    return (SQLRETURN)ODBCLibFinished();
    }
