root/main/trunk/greenstone2/common-src/src/gdbmedit/db2txt/db2txt.cpp @ 22039

Revision 22039, 2.8 KB (checked in by davidb, 10 years ago)

Improved error reporting to GDBMedit utils

  • Property svn:executable set to *
  • Property svn:keywords set to Author Date Id Revision
Line 
1/**********************************************************************
2 *
3 * db2txt.cpp --
4 * Copyright (C) 1999  The New Zealand Digital Library Project
5 *
6 * A component of the Greenstone digital library software
7 * from the New Zealand Digital Library Project at the
8 * University of Waikato, New Zealand.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 *********************************************************************/
25
26#ifdef __WIN32__
27#include "autoconf.h"
28#include "systems.h"
29#include "gdbmconst.h"
30#include "gdbm.h"
31
32#else
33#include <gdbm.h>
34#endif
35
36#include "gsdlconf.h"
37#include <stdlib.h>
38
39#if defined(GSDL_USE_OBJECTSPACE)
40#include <ospace\std\iostream>
41#elif defined(GSDL_USE_IOS_H)
42#include <iostream.h>
43#else
44#include <iostream>
45#endif
46
47// use the standard namespace
48#if !defined (GSDL_NAMESPACE_BROKEN)
49#if defined(GSDL_USE_OBJECTSPACE)
50using namespace ospace::std;
51#else
52using namespace std;
53#endif
54#endif
55
56void print_usage (char *program_name) {
57  cerr << "usage: " << program_name << " database-name" << endl << endl;
58}
59
60
61int main (int argc, char *argv[]) {
62  int block_size = 0, i;
63  GDBM_FILE dbf;
64  datum key, value, nextkey;
65     
66  // sanity check
67  if (argc != 2) {
68    print_usage (argv[0]);
69    exit (0);
70  }
71 
72  // open the database
73#ifdef __WIN32__
74  dbf = gdbm_open (argv[1], block_size, GDBM_READER, 00664, NULL, 0);
75#else
76  dbf = gdbm_open  (argv[1], block_size, GDBM_READER, 00664, NULL);
77#endif
78  if (dbf == NULL) {
79    cerr << argv[0] << ": couldn't open " << argv[1] << endl;
80    exit (0);
81  }
82
83  key = gdbm_firstkey (dbf);
84  while (key.dptr != NULL) {
85    cout << "[";
86    for (i = 0; i < key.dsize; ++i)
87      cout << key.dptr[i];
88    cout << "]" << endl;
89    value = gdbm_fetch (dbf, key);
90    for (i = 0; i < value.dsize; ++i)
91      cout << value.dptr[i];
92    cout << endl << "----------------------------------------------------------------------" << endl;
93    free(value.dptr);
94
95    /* get next key */
96    nextkey = gdbm_nextkey (dbf, key);
97
98    /* free old key's dptr, otherwise causes memory leak */
99    free(key.dptr);
100   
101    /* can now safely copy content of nextkey into key */
102    key = nextkey;
103  }
104 
105  gdbm_close (dbf);
106  return 0;
107}
Note: See TracBrowser for help on using the browser.