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/* testdbm.c - Driver program to test the dbm interface routines. */
/* 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>
#include <sys/types.h>
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#include <sys/stat.h>
#define TRUE 1
#define FALSE 0
typedef struct {
char *dptr;
int dsize;
} datum;
extern datum fetch ();
extern datum firstkey ();
extern datum nextkey ();
/* The test program allows one to call all the routines plus the hash function.
The commands are single letter commands. The user is prompted for all other
information. The commands are q (quit), f (fetch), s (store), d (delete),
1 (firstkey), n (nextkey) and h (hash function). */
int
main (argc, argv)
int argc;
char *argv[];
{
char cmd_ch;
datum key_data;
datum data_data;
datum return_data;
char key_line[500];
char data_line[1000];
char done = FALSE;
char sys[255];
char *file_name;
/* Argument checking. */
if (argc > 2)
{
printf ("Usage: %s [dbm-file] \n",argv[0]);
exit (2);
}
if (argc > 1)
{
file_name = argv[1];
}
else
{
file_name = "junkdbm";
}
/* Initialize */
data_data.dptr = data_line;
if (dbminit (file_name) != 0)
{
sprintf (sys,"touch %s.pag %s.dir", file_name, file_name);
system (sys);
if (dbminit (file_name) != 0)
{
printf ("dbminit failed.\n");
exit (2);
}
}
/* Welcome message. */
printf ("\nWelcome to the dbm test program. Type ? for help.\n\n");
while (!done)
{
printf ("com -> ");
cmd_ch = getchar ();
while (getchar () != '\n') /* Do nothing. */;
switch (cmd_ch)
{
case 'q':
done = TRUE;
break;
case 'f':
printf ("key -> ");
gets (key_line);
key_data.dptr = key_line;
key_data.dsize = strlen (key_line)+1;
return_data = fetch (key_data);
if (return_data.dptr != NULL)
printf ("data is ->%s\n\n", return_data.dptr);
else
printf ("No such item found.\n\n");
break;
case 's':
printf ("key -> ");
gets (key_line);
key_data.dptr = key_line;
key_data.dsize = strlen (key_line)+1;
printf ("data -> ");
gets (data_line);
data_data.dsize = strlen (data_line)+1;
if (store (key_data, data_data) != 0)
printf ("Item not inserted. \n");
printf ("\n");
break;
case 'd':
printf ("key -> ");
gets (key_line);
key_data.dptr = key_line;
key_data.dsize = strlen (key_line)+1;
if (delete (key_data) != 0)
printf ("Item not found or deleted\n");
printf ("\n");
break;
case '1':
key_data = firstkey ();
if (key_data.dptr != NULL)
{
return_data = fetch (key_data);
printf ("key is ->%s\n", key_data.dptr);
printf ("data is ->%s\n\n", return_data.dptr);
}
else
printf ("No such item found.\n\n");
break;
case '2':
key_data = nextkey (key_data);
if (key_data.dptr != NULL)
{
return_data = fetch (key_data);
printf ("key is ->%s\n", key_data.dptr);
printf ("data is ->%s\n\n", return_data.dptr);
}
else
printf ("No such item found.\n\n");
break;
case 'c':
{
int temp;
temp = 0;
return_data = firstkey ();
while (return_data.dptr != NULL)
{
temp++;
return_data = nextkey (return_data);
}
printf ("There are %d items in the database.\n\n", temp);
}
break;
case '?':
printf ("c - count elements\n");
printf ("d - delete\n");
printf ("f - fetch\n");
printf ("q - quit\n");
printf ("s - store\n");
printf ("1 - firstkey\n");
printf ("2 - nextkey on last return value\n\n");
break;
default:
printf ("What? \n\n");
break;
}
}
/* Quit normally. */
exit (0);
}
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