[16455] | 1 | /* conv2gdbm.c - This is a program to convert dbm files to gdbm files. */
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| 2 |
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| 3 | /* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.
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| 4 | Copyright (C) 1990, 1991, 1993 Free Software Foundation, Inc.
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| 5 |
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| 6 | GDBM is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 2, or (at your option)
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| 9 | any later version.
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| 10 |
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| 11 | GDBM is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with GDBM; see the file COPYING. If not, write to
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| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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| 19 |
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| 20 | You may contact the author by:
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| 21 | e-mail: [email protected]
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| 22 | us-mail: Philip A. Nelson
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| 23 | Computer Science Department
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| 24 | Western Washington University
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| 25 | Bellingham, WA 98226
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| 26 |
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| 27 | *************************************************************************/
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| 28 |
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| 29 |
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| 30 | /* include system configuration before all else. */
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| 31 | #include "autoconf.h"
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| 32 |
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| 33 | #include <stdio.h>
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| 34 | #if HAVE_STDLIB_H
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| 35 | #include <stdlib.h>
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| 36 | #endif
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| 37 | #include "gdbm.h"
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| 38 |
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| 39 | #include "getopt.h"
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| 40 |
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| 41 | extern int dbminit ();
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| 42 | extern datum fetch ();
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| 43 | extern datum firstkey ();
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| 44 | extern datum nextkey ();
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| 45 |
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| 46 | static void usage();
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| 47 |
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| 48 | /* Boolean Constants */
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| 49 | #define TRUE 1
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| 50 | #define FALSE 0
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| 51 |
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| 52 | int
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| 53 | main (argc, argv)
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| 54 | int argc;
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| 55 | char *argv[];
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| 56 | {
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| 57 | GDBM_FILE gfile; /* The gdbm file. */
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| 58 | datum key; /* Key and data pairs retrieved. */
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| 59 | datum data;
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| 60 | int errors; /* error count. */
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| 61 | int num; /* insert count. */
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| 62 | int block_size; /* gdbm block size. */
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| 63 | char quiet; /* Do work Quietly? */
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| 64 | char option_char; /* The option character. */
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| 65 |
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| 66 | char *dbm_file, *gdbm_file; /* pointers to the file names. */
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| 67 |
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| 68 | /* Initialize things. */
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| 69 | quiet = FALSE;
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| 70 | block_size = 0;
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| 71 |
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| 72 | /* Check for proper arguments. */
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| 73 |
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| 74 | if (argc < 2)
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| 75 | usage (argv[0]);
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| 76 |
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| 77 | /* Check for the options. */
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| 78 | while ( (option_char = getopt (argc, argv, "b:q")) != EOF)
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| 79 | {
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| 80 | switch (option_char)
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| 81 | {
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| 82 | case 'b':
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| 83 | block_size = atoi (optarg);
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| 84 | break;
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| 85 |
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| 86 | case 'q':
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| 87 | quiet = TRUE;
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| 88 | break;
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| 89 |
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| 90 | default:
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| 91 | usage (argv[0]);
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| 92 | }
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| 93 | }
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| 94 |
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| 95 | /* The required dbm file name. */
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| 96 | if (argc <= optind)
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| 97 | {
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| 98 | usage (argv[0]);
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| 99 | }
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| 100 | else
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| 101 | {
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| 102 | dbm_file = argv[optind];
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| 103 | gdbm_file = argv[optind];
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| 104 | optind += 1;
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| 105 | }
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| 106 |
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| 107 | /* The optional gdbm file name. */
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| 108 | if (argc > optind)
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| 109 | {
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| 110 | gdbm_file = argv[optind];
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| 111 | optind += 1;
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| 112 | }
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| 113 |
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| 114 | /* No more arguments are legal. */
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| 115 | if (argc > optind) usage (argv[0]);
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| 116 |
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| 117 | /* Open the dbm file. */
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| 118 | if (dbminit (dbm_file) != 0)
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| 119 | {
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| 120 | printf ("%s: dbm file not opened\n", argv[0]);
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| 121 | exit (2);
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| 122 | }
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| 123 |
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| 124 | /* Open the gdbm file. Since the dbm files have .pag and .dir we
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| 125 | will use the file name without any extension. */
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| 126 | gfile = gdbm_open (gdbm_file, block_size, GDBM_WRCREAT, 00664, NULL);
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| 127 | if (gfile == NULL)
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| 128 | {
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| 129 | printf ("%s: gdbm file not opened\n", argv[0]);
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| 130 | exit (2);
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| 131 | }
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| 132 |
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| 133 |
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| 134 | /* Do the conversion. */
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| 135 | errors = 0;
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| 136 | num = 0;
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| 137 |
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| 138 | if (!quiet)
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| 139 | printf ("%s: Converting %s.pag and %s.dir to %s.\n", argv[0], dbm_file,
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| 140 | dbm_file, gdbm_file);
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| 141 |
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| 142 | /* The convert loop - read a key/data pair from the dbm file and insert
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| 143 | it into the gdbm file. */
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| 144 |
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| 145 | for (key = firstkey (); key.dptr != NULL; key = nextkey (key))
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| 146 | {
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| 147 | data = fetch (key);
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| 148 | if (gdbm_store (gfile, key, data, GDBM_INSERT) != 0)
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| 149 | {
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| 150 | errors++;
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| 151 | }
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| 152 | else
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| 153 | {
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| 154 | num++;
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| 155 | if ( !quiet && ((num % 100) == 0))
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| 156 | {
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| 157 | printf (".");
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| 158 | if ( (num % 7000) == 0)
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| 159 | printf ("\n");
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| 160 | }
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| 161 | }
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| 162 | }
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| 163 |
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| 164 | gdbm_close (gfile);
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| 165 |
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| 166 | if (!quiet)
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| 167 | {
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| 168 | /* Final reporting. */
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| 169 | if (errors)
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| 170 | printf ("%s: %d items not inserted into %s.\n", argv[0],
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| 171 | errors, gdbm_file);
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| 172 |
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| 173 | printf ("%s: %d items inserted into %s.\n", argv[0], num, gdbm_file);
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| 174 | }
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| 175 | exit(0);
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| 176 | /* NOTREACHED */
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| 177 | }
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| 178 |
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| 179 | static void usage (name)
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| 180 | char *name;
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| 181 | {
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| 182 | printf ("usage: %s [-q] [-b block_size] dbmfile [gdbmfile]\n", name);
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| 183 | exit (2);
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| 184 | }
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