dblib.h

/* FreeTDS - Library of routines accessing Sybase and Microsoft databases
 * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005  Brian Bruns
 *
 * 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; either
 * version 2 of the License, or (at your option) any later version.
 *
 * 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 Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
#ifndef _dblib_h_
#define _dblib_h_
 
#include <freetds/pushvis.h>
 
#ifdef __cplusplus
extern "C"
{
#if 0
}
#endif
#endif
 
typedef enum
{
      _DB_RES_INIT
    , _DB_RES_RESULTSET_EMPTY
    , _DB_RES_RESULTSET_ROWS
    , _DB_RES_NEXT_RESULT
    , _DB_RES_NO_MORE_RESULTS
    , _DB_RES_SUCCEED
} DB_RESULT_STATE;
 
struct tds_dblib_loginrec
{
    TDSLOGIN *tds_login;
    bool network_auth;
};
 
struct dblib_buffer_row;
 
typedef struct
{
    int received;       /* how many rows have been received for this result set */
    int head;       /* queue insertion point */
    int tail;       /* oldest item in queue */
    int current;        /* dbnextrow() reads this row */
    int capacity;       /* how many elements the queue can hold  */
    struct dblib_buffer_row *rows;      /* pointer to the row storage */
} DBPROC_ROWBUF;
 
typedef struct
{
    int host_column;
    TDS_SERVER_TYPE datatype;
    int prefix_len;
    DBINT column_len;
    BYTE *terminator;
    int term_len;
    int tab_colnum;
    int column_error;
} BCP_HOSTCOLINFO;
 
typedef struct
{
    TDS_CHAR *hostfile;
    TDS_CHAR *errorfile;
    FILE *bcp_errfileptr;
    TDS_INT host_colcount;
    BCP_HOSTCOLINFO **host_columns;
    TDS_INT firstrow;
    TDS_INT lastrow;
    TDS_INT maxerrs;
    TDS_INT batch;
} BCP_HOSTFILEINFO;
 
/* linked list of rpc parameters */
 
typedef struct DBREMOTE_PROC_PARAM
{
    struct DBREMOTE_PROC_PARAM *next;
 
    char *name;
    BYTE status;
    TDS_SERVER_TYPE type;
    DBINT maxlen;
    DBINT datalen;
    BYTE *value;
} DBREMOTE_PROC_PARAM;
 
typedef struct DBREMOTE_PROC
{
    struct DBREMOTE_PROC *next;
 
    char *name;
    DBSMALLINT options;
    DBREMOTE_PROC_PARAM *param_list;
} DBREMOTE_PROC;
 
typedef struct dboption
{
    const char *text;
    DBSTRING *param;
    DBBOOL factive;
} DBOPTION;
 
typedef struct
{
    const BYTE *bindval;
    size_t len;
} NULLREP;
 
struct tds_dblib_dbprocess
{
    TDSSOCKET *tds_socket;
 
    STATUS row_type;
    DBPROC_ROWBUF row_buf;
 
    int noautofree;
    int more_results;   /* boolean.  Are we expecting results? */
    DB_RESULT_STATE dbresults_state;
    int dbresults_retcode;
    BYTE *user_data;    /* see dbsetuserdata() and dbgetuserdata() */
    unsigned char *dbbuf;   /* is dynamic!                   */
    int dbbufsz;
    int command_state;
    TDS_INT text_size;
    TDS_INT text_sent;
    DBTYPEINFO typeinfo;
    unsigned char avail_flag;
    DBOPTION *dbopts;
    DBSTRING *dboptcmd;
    BCP_HOSTFILEINFO *hostfileinfo;
    TDSBCPINFO *bcpinfo;
    DBREMOTE_PROC *rpc;
    DBUSMALLINT envchange_rcv;
    char dbcurdb[DBMAXNAME + 1];
    char servcharset[DBMAXNAME + 1];
    FILE *ftos;
    DB_DBCHKINTR_FUNC chkintr;
    DB_DBHNDLINTR_FUNC hndlintr;
 
    int msdblib;
 
    int ntimeouts;
 
    NULLREP     nullreps[MAXBINDTYPES];
};
 
enum {
#if MSDBLIB
    dblib_msdblib = 1
#else
    dblib_msdblib = 0
#endif
};
 
/*
 * internal prototypes
 */
RETCODE dbgetnull(DBPROCESS *dbproc, int bindtype, int varlen, BYTE* varaddr);
void copy_data_to_host_var(DBPROCESS * dbproc, TDS_SERVER_TYPE srctype, const BYTE * src, DBINT srclen,
               BYTE * dest, DBINT destlen,
               int bindtype, DBINT *indicator);
 
int dbperror (DBPROCESS *dbproc, DBINT msgno, long errnum, ...);
int _dblib_handle_info_message(const TDSCONTEXT * ctxptr, TDSSOCKET * tdsptr, TDSMESSAGE* msgptr);
int _dblib_handle_err_message(const TDSCONTEXT * ctxptr, TDSSOCKET * tdsptr, TDSMESSAGE* msgptr);
int _dblib_check_and_handle_interrupt(void * vdbproc);
 
void _dblib_setTDS_version(TDSLOGIN * tds_login, DBINT version);
void _dblib_convert_err(DBPROCESS * dbproc, TDS_INT len);
 
DBINT _convert_char(int srctype, BYTE * src, int destype, BYTE * dest, DBINT destlen);
DBINT _convert_intn(int srctype, BYTE * src, int destype, BYTE * dest, DBINT destlen);
 
RETCODE _bcp_clear_storage(DBPROCESS * dbproc);
RETCODE _bcp_get_prog_data(DBPROCESS * dbproc);
 
extern MHANDLEFUNC _dblib_msg_handler;
extern EHANDLEFUNC _dblib_err_handler;
 
#define CHECK_PARAMETER(x, msg, ret)    if (!(x)) { dbperror(dbproc, (msg), 0); return ret; }
#define CHECK_NULP(x, func, param_num, ret) if (!(x)) { dbperror(dbproc, SYBENULP, 0, func, (int) param_num); return ret; }
#define CHECK_PARAMETER_NOPROC(x, msg)  if (!(x)) { dbperror(NULL, (msg), 0); return FAIL; }
#define DBPERROR_RETURN(x, msg) if (x) { dbperror(dbproc, (msg), 0); return FAIL; }
#define DBPERROR_RETURN3(x, msg, a, b, c)   if (x) { dbperror(dbproc, (msg), 0, a, b, c); return FAIL; }
#define CHECK_CONN(ret) do { CHECK_PARAMETER(dbproc, SYBENULL, (ret)); \
    if (IS_TDSDEAD(dbproc->tds_socket)) { dbperror(dbproc, SYBEDDNE, 0); return (ret); } } while(0)
 
 
#ifdef __cplusplus
#if 0
{
#endif
}
#endif
 
#include <freetds/popvis.h>
 
#endif