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db_dump.h

/*
    db_dump.h - Routines for reading dBase III files
    Copyright (c) 1995,96,2003  Martin Schulze <joey@infodrom.org>

    This file is part of the dbview package, a viewer for dBase II files.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*/


/*
    Most of the code in this file comes from Greg Twaites anno 87. I
    only took the file and wrote a program around it. I enclude the
    whole header. I have obtained this file from a free software
    archive, namely nic.funet.fi.  It is supposed to be placed in the
    public domain.  Hence, adding GPL code around and distributinng
    the entire file under the GPL should be fine.

      ftp://nic.funet.fi/pub/msdos/languages/c/dbase.c
*/

/*
 * These functions are used to read dbase files.
 *
 * These functions are provided by Valour Software as a gift.
 *
 * The program is for test purposes only.  No warranty is expressed nor
 * implied. USE AT YOUR OWN RISK!
 *
 *
 */

#include <stdint.h>

#define DB_FL_BROWSE    0x01
#define DB_FL_INFO      0x02
#define DB_FL_DESCR     0x04
#define DB_FL_RESERVE   0x08
#define DB_FL_OMIT      0x10
#define DB_FL_TRIM      0x20
#define DB_FL_DELETED   0x40

00055 typedef struct dbase_head { 
    uint8_t version;          /* 03 for dbIII and 83 for dbIII w/memo file */
    uint8_t l_update[3];            /* yymmdd for last update*/
    uint32_t      count;                  /* number of records in file*/
    uint16_t      header;                 /* length of the header
                               * includes the \r at end
                               */
    uint16_t      lrecl;                  /* length of a record
                               * includes the delete
                               * byte
                               */
    uint8_t     reserv[20];
    } DBASE_HEAD;

#define DB_FLD_CHAR  'C'
#define DB_FLD_NUM   'N'
#define DB_FLD_LOGIC 'L'
#define DB_FLD_MEMO  'M'
#define DB_FLD_DATE  'D'
 
00075 typedef struct dbase_fld {
    uint8_t    name[11];                                  /*field name*/
    uint8_t    type;                                      /*field type*/
    /* A-T uses large data model but drop it for now */
    uint8_t   *data_ptr;                                  /*pointer into buffer*/
    uint8_t   length;                                     /*field length*/
    uint8_t   dec_point;                                  /*field decimal point*/
    uint8_t   fill[14];
    } DBASE_FIELD;
 
00085 typedef struct fld_list {
    struct fld_list *next;
    DBASE_FIELD     *fld;
    uint8_t         *data;
    } FLD_LIST;

int
db3_process(char*, int, char);

/******************************************************
                                         db3_read_dic()
This function is called with a file name to
read to create a record type to support the
dbase file
******************************************************/
 
int
db3_read_dic(int);
 
/******************************************************
                                        db3_print_recs()
Read records and print the data
******************************************************/
 
void
db3_print_recs(int, int, char);
 
/******************************************************
                                          db3_print()
Print a single record
******************************************************/
 
void
db3_print(int, char, char);
 
/******************************************************
                                         stack_field()
Add a field to the linked list of fields
******************************************************/
 
void
stack_field(DBASE_FIELD *);

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