sqlfront.h

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/* $Id: sqlfront.h,v 1.3 1998/12/28 09:43:57 sas Exp $ */

#ifndef _INC_SQLFRONT
#define _INC_SQLFRONT

#ifdef DBNTWIN32
	#ifndef _WINDOWS_
		#pragma message (__FILE__ " : db-library error: windows.h must be included before sqlfront.h.")
	#endif
#endif

#ifdef __cplusplus
	extern "C" {
#endif

/*****************************************************************************
*                                                                            *
*     SQLFRONT.H - DB-Library header file for the Microsoft SQL Server.      *
*                                                                            *
*     Copyright (c) 1989 - 1995 by Microsoft Corp.  All rights reserved.     *
*                                                                            *
* All constant and macro definitions for DB-Library applications programming *
* are contained in this file.  This file must be included before SQLDB.H and *
* one of the following #defines must be made, depending on the operating     *
* system: DBMSDOS, DBMSWIN or DBNTWIN32.                                     *
*                                                                            *
*****************************************************************************/


/*****************************************************************************
* Datatype definitions                                                       *
*****************************************************************************/

// Note this has changed because Windows 3.1 defines API as 'pascal far'

#if !defined(M_I86SM) && !defined(DBNTWIN32)
#define SQLAPI cdecl far
#else
#define SQLAPI _cdecl
#endif

#ifndef  API
#define  API  SQLAPI
#endif

#ifndef DOUBLE
typedef double DOUBLE;
#endif


/*****************************************************************************
* DBPROCESS, LOGINREC and DBCURSOR                                           *
*****************************************************************************/

#define DBPROCESS void   // dbprocess structure type
#define LOGINREC  void   // login record type
#define DBCURSOR  void   // cursor record type
#define DBHANDLE  void   // generic handle

// DOS Specific
#ifdef DBMSDOS
typedef DBPROCESS * PDBPROCESS;
typedef LOGINREC  * PLOGINREC;
typedef DBCURSOR  * PDBCURSOR;
typedef DBHANDLE  * PDBHANDLE;
#define PTR *
#endif


// WIN 3.x Specific.  The handle pointers are near for Windows 3.x
#ifdef DBMSWIN
typedef DBPROCESS near * PDBPROCESS;
typedef LOGINREC  near * PLOGINREC;
typedef DBCURSOR  near * PDBCURSOR;
typedef DBHANDLE  near * PDBHANDLE;
#define PTR far *
#endif


// Windows NT Specific
#ifdef DBNTWIN32
typedef DBPROCESS * PDBPROCESS;
typedef LOGINREC  * PLOGINREC;
typedef DBCURSOR  * PDBCURSOR;
typedef DBHANDLE  * PDBHANDLE;
#define PTR *
typedef int (SQLAPI *SQLFARPROC)();
#else
typedef long (far pascal *LGFARPROC)();  // Windows loadable driver fp
#endif


/*****************************************************************************
* Win32 compatibility datatype definitions                                   *
* Note: The following datatypes are provided for Win32 compatibility.        *
* Since some of the datatypes are already defined in unrelated include files *
* there may definition duplication.  Every attempt has been made to check    *
* for such problems.                                                         *
*****************************************************************************/

#ifndef DBNTWIN32

#ifndef SHORT
typedef short SHORT;
#endif

#ifndef INT
typedef int INT;
#endif

#ifndef UINT
typedef unsigned int UINT;
#endif

#ifndef USHORT
typedef unsigned short USHORT;
#endif

#ifndef ULONG
typedef unsigned long ULONG;
#endif

#ifndef CHAR
typedef char CHAR;
#endif

#ifndef LPINT
typedef INT PTR LPINT;
#endif

typedef unsigned char BYTE;

typedef       CHAR PTR LPSTR;
typedef       BYTE PTR LPBYTE;
typedef       void PTR LPVOID;	
typedef const CHAR PTR LPCSTR;

typedef int BOOL;

#endif


/*****************************************************************************
* DB-Library datatype definitions                                            *
*****************************************************************************/

#define DBMAXCHAR 256 // Max length of DBVARBINARY and DBVARCHAR, etc.

#ifndef DBTYPEDEFS    // srv.h (Open Server include) not already included

#define DBTYPEDEFS

#define RETCODE INT
#define STATUS INT

// DB-Library datatypes
typedef char            DBCHAR;
typedef unsigned char   DBBINARY;
typedef unsigned char   DBTINYINT;
typedef short           DBSMALLINT;
typedef unsigned short  DBUSMALLINT;
typedef long            DBINT;
typedef double          DBFLT8;
typedef unsigned char   DBBIT;
typedef unsigned char   DBBOOL;
typedef float           DBFLT4;
typedef long            DBMONEY4;

typedef DBFLT4 DBREAL;
typedef UINT   DBUBOOL;

typedef struct dbdatetime4
{
	USHORT numdays;        // No of days since Jan-1-1900
	USHORT nummins;        // No. of minutes since midnight
} DBDATETIM4;


typedef struct dbvarychar
{
	DBSMALLINT  len;
	DBCHAR      str[DBMAXCHAR];
} DBVARYCHAR;

typedef struct dbvarybin
{
	DBSMALLINT  len;
	BYTE        array[DBMAXCHAR];
} DBVARYBIN;

typedef struct dbmoney
{
	DBINT mnyhigh;
	ULONG mnylow;
} DBMONEY;

typedef struct dbdatetime
{
	DBINT dtdays;
	ULONG dttime;
} DBDATETIME;

// DBDATEREC structure used by dbdatecrack
typedef struct dbdaterec
{
	INT     year;         // 1753 - 9999
	INT     quarter;      // 1 - 4
	INT     month;        // 1 - 12
	INT     dayofyear;    // 1 - 366
	INT     day;          // 1 - 31
	INT     week;         // 1 - 54 (for leap years)
	INT     weekday;      // 1 - 7  (Mon - Sun)
	INT     hour;         // 0 - 23
	INT     minute;       // 0 - 59
	INT     second;       // 0 - 59
	INT     millisecond;  // 0 - 999
} DBDATEREC;

#define MAXNUMERICLEN 16
#define MAXNUMERICDIG 38

#define DEFAULTPRECISION 18
#define DEFAULTSCALE     0

typedef struct dbnumeric
{
	BYTE precision;
	BYTE scale;
	BYTE sign; // 1 = Positive, 0 = Negative
	BYTE val[MAXNUMERICLEN];
} DBNUMERIC;

typedef DBNUMERIC DBDECIMAL;


// Pack the following structures on a word boundary
#ifdef __BORLANDC__
#pragma option -a+
#else
	#ifndef DBLIB_SKIP_PRAGMA_PACK   // Define this if your compiler does not support #pragma pack()
	#pragma pack(2)
	#endif
#endif

#define MAXCOLNAMELEN 30
#define MAXTABLENAME  30

typedef struct
{
	DBINT SizeOfStruct;
	CHAR  Name[MAXCOLNAMELEN+1];
	CHAR  ActualName[MAXCOLNAMELEN+1];
	CHAR  TableName[MAXTABLENAME+1];
	SHORT Type;
	DBINT UserType;
	DBINT MaxLength;
	BYTE  Precision;
	BYTE  Scale;
	BOOL  VarLength;     // TRUE, FALSE
	BYTE  Null;          // TRUE, FALSE or DBUNKNOWN
	BYTE  CaseSensitive; // TRUE, FALSE or DBUNKNOWN
	BYTE  Updatable;     // TRUE, FALSE or DBUNKNOWN
	BOOL  Identity;      // TRUE, FALSE
} DBCOL, PTR LPDBCOL;


#define MAXSERVERNAME 30
#define MAXNETLIBNAME 255
#define MAXNETLIBCONNSTR 255

typedef struct
{
	DBINT  SizeOfStruct;
	BYTE   ServerType;
	USHORT ServerMajor;
	USHORT ServerMinor;
	USHORT ServerRevision;
	CHAR   ServerName[MAXSERVERNAME+1];
	CHAR   NetLibName[MAXNETLIBNAME+1];
	CHAR   NetLibConnStr[MAXNETLIBCONNSTR+1];
} DBPROCINFO, PTR LPDBPROCINFO;

typedef struct
{
	DBINT SizeOfStruct;   // Use sizeof(DBCURSORINFO)
	ULONG TotCols;        // Total Columns in cursor
	ULONG TotRows;        // Total Rows in cursor
	ULONG CurRow;         // Current actual row in server
	ULONG TotRowsFetched; // Total rows actually fetched
	ULONG Type;           // See CU_...
	ULONG Status;         // See CU_...
} DBCURSORINFO, PTR LPDBCURSORINFO;

#define INVALID_UROWNUM ((ULONG)(-1))

// Reset default alignment
#ifdef __BORLANDC__
#pragma option -a-
#else
	#ifndef DBLIB_SKIP_PRAGMA_PACK   // Define this if your compiler does not support #pragma pack()
	#pragma pack()
	#endif
#endif


#endif // End DBTYPEDEFS


/*****************************************************************************
* Pointer Datatypes                                                          *
*****************************************************************************/

typedef const LPINT          LPCINT;
typedef const LPBYTE         LPCBYTE ;
typedef       USHORT PTR     LPUSHORT;
typedef const LPUSHORT       LPCUSHORT;
typedef       DBINT PTR      LPDBINT;
typedef const LPDBINT        LPCDBINT;
typedef       DBBINARY PTR   LPDBBINARY;
typedef const LPDBBINARY     LPCDBBINARY;
typedef       DBDATEREC PTR  LPDBDATEREC;
typedef const LPDBDATEREC    LPCDBDATEREC;
typedef       DBDATETIME PTR LPDBDATETIME;
typedef const LPDBDATETIME   LPCDBDATETIME;


/*****************************************************************************
* General #defines                                                           *
*****************************************************************************/

#define TIMEOUT_IGNORE (ULONG)-1
#define TIMEOUT_INFINITE (ULONG)0
#define TIMEOUT_MAXIMUM (ULONG)1200 // 20 minutes maximum timeout value

// Used for ServerType in dbgetprocinfo
#define SERVTYPE_UNKNOWN   0
#define SERVTYPE_MICROSOFT 1

// Used by dbcolinfo
enum CI_TYPES { CI_REGULAR=1, CI_ALTERNATE=2, CI_CURSOR=3 };

// Bulk Copy Definitions (bcp)
#define DB_IN	1         // Transfer from client to server
#define DB_OUT	2         // Transfer from server to client

#define BCPMAXERRS   1    // bcp_control parameter
#define BCPFIRST     2    // bcp_control parameter
#define BCPLAST      3    // bcp_control parameter
#define BCPBATCH     4    // bcp_control parameter
#define BCPKEEPNULLS 5    // bcp_control parameter
#define BCPABORT     6    // bcp_control parameter

#ifndef TRUE
#define TRUE 1
#endif

#ifndef FALSE
#define FALSE 0
#endif

#define TINYBIND         1
#define SMALLBIND        2
#define INTBIND          3
#define CHARBIND         4
#define BINARYBIND       5
#define BITBIND          6
#define DATETIMEBIND     7
#define MONEYBIND        8
#define FLT8BIND         9
#define STRINGBIND      10
#define NTBSTRINGBIND   11
#define VARYCHARBIND    12
#define VARYBINBIND     13
#define FLT4BIND        14
#define SMALLMONEYBIND  15
#define SMALLDATETIBIND 16
#define DECIMALBIND     17
#define NUMERICBIND     18
#define SRCDECIMALBIND  19
#define SRCNUMERICBIND  20
#define MAXBIND         SRCNUMERICBIND

#define DBSAVE          1
#define DBNOSAVE        0

#define DBNOERR         -1
#define DBFINDONE       0x04  // Definately done
#define DBMORE          0x10  // Maybe more commands waiting
#define DBMORE_ROWS     0x20  // This command returned rows

#define MAXNAME         31


#define DBTXTSLEN       8     // Timestamp length

#define DBTXPLEN        16    // Text pointer length

// Error code returns
#define INT_EXIT        0