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/* conv2gdbm.c - This is a program to convert dbm files to gdbm files. */
/* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.
Copyright (C) 1990, 1991, 1993 Free Software Foundation, Inc.
GDBM 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, or (at your option)
any later version.
GDBM 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 GDBM; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
You may contact the author by:
e-mail: phil@cs.wwu.edu
us-mail: Philip A. Nelson
Computer Science Department
Western Washington University
Bellingham, WA 98226
*************************************************************************/
/* include system configuration before all else. */
#include "autoconf.h"
#include <stdio.h>
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include "gdbm.h"
#include "getopt.h"
extern int dbminit ();
extern datum fetch ();
extern datum firstkey ();
extern datum nextkey ();
static void usage();
/* Boolean Constants */
#define TRUE 1
#define FALSE 0
int
main (argc, argv)
int argc;
char *argv[];
{
GDBM_FILE gfile; /* The gdbm file. */
datum key; /* Key and data pairs retrieved. */
datum data;
int errors; /* error count. */
int num; /* insert count. */
int block_size; /* gdbm block size. */
char quiet; /* Do work Quietly? */
char option_char; /* The option character. */
char *dbm_file, *gdbm_file; /* pointers to the file names. */
/* Initialize things. */
quiet = FALSE;
block_size = 0;
/* Check for proper arguments. */
if (argc < 2)
usage (argv[0]);
/* Check for the options. */
while ( (option_char = getopt (argc, argv, "b:q")) != EOF)
{
switch (option_char)
{
case 'b':
block_size = atoi (optarg);
break;
case 'q':
quiet = TRUE;
break;
default:
usage (argv[0]);
}
}
/* The required dbm file name. */
if (argc <= optind)
{
usage (argv[0]);
}
else
{
dbm_file = argv[optind];
gdbm_file = argv[optind];
optind += 1;
}
/* The optional gdbm file name. */
if (argc > optind)
{
gdbm_file = argv[optind];
optind += 1;
}
/* No more arguments are legal. */
if (argc > optind) usage (argv[0]);
/* Open the dbm file. */
if (dbminit (dbm_file) != 0)
{
printf ("%s: dbm file not opened\n", argv[0]);
exit (2);
}
/* Open the gdbm file. Since the dbm files have .pag and .dir we
will use the file name without any extension. */
gfile = gdbm_open (gdbm_file, block_size, GDBM_WRCREAT, 00664, NULL);
if (gfile == NULL)
{
printf ("%s: gdbm file not opened\n", argv[0]);
exit (2);
}
/* Do the conversion. */
errors = 0;
num = 0;
if (!quiet)
printf ("%s: Converting %s.pag and %s.dir to %s.\n", argv[0], dbm_file,
dbm_file, gdbm_file);
/* The convert loop - read a key/data pair from the dbm file and insert
it into the gdbm file. */
for (key = firstkey (); key.dptr != NULL; key = nextkey (key))
{
data = fetch (key);
if (gdbm_store (gfile, key, data, GDBM_INSERT) != 0)
{
errors++;
}
else
{
num++;
if ( !quiet && ((num % 100) == 0))
{
printf (".");
if ( (num % 7000) == 0)
printf ("\n");
}
}
}
gdbm_close (gfile);
if (!quiet)
{
/* Final reporting. */
if (errors)
printf ("%s: %d items not inserted into %s.\n", argv[0],
errors, gdbm_file);
printf ("%s: %d items inserted into %s.\n", argv[0], num, gdbm_file);
}
exit(0);
/* NOTREACHED */
}
static void usage (name)
char *name;
{
printf ("usage: %s [-q] [-b block_size] dbmfile [gdbmfile]\n", name);
exit (2);
}
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