1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Margo Seltzer.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef lint
34static char copyright[] =
35"@(#) Copyright (c) 1991, 1993\n\
36	The Regents of the University of California.  All rights reserved.\n";
37#endif /* not lint */
38
39#if defined(LIBC_SCCS) && !defined(lint)
40static char sccsid[] = "@(#)tdel.c	8.1 (Berkeley) 6/4/93";
41#endif /* LIBC_SCCS and not lint */
42#include <sys/cdefs.h>
43__FBSDID("$FreeBSD$");
44
45#include <sys/types.h>
46#include <sys/file.h>
47#include <db.h>
48#include <stdio.h>
49
50#define INITIAL	25000
51#define MAXWORDS    25000	       /* # of elements in search table */
52
53/* Usage: thash pagesize fillfactor file */
54char	wp1[8192];
55char	wp2[8192];
56main(argc, argv)
57char **argv;
58{
59	DBT item, key;
60	DB	*dbp;
61	HASHINFO ctl;
62	FILE *fp;
63	int	stat;
64
65	int i = 0;
66
67	argv++;
68	ctl.nelem = INITIAL;
69	ctl.hash = NULL;
70	ctl.bsize = atoi(*argv++);
71	ctl.ffactor = atoi(*argv++);
72	ctl.cachesize = 1024 * 1024;	/* 1 MEG */
73	ctl.lorder = 0;
74	argc -= 2;
75	if (!(dbp = dbopen( NULL, O_CREAT|O_RDWR, 0400, DB_HASH, &ctl))) {
76		/* create table */
77		fprintf(stderr, "cannot create: hash table size %d)\n",
78			INITIAL);
79		exit(1);
80	}
81
82	key.data = wp1;
83	item.data = wp2;
84	while ( fgets(wp1, 8192, stdin) &&
85		fgets(wp2, 8192, stdin) &&
86		i++ < MAXWORDS) {
87/*
88* put info in structure, and structure in the item
89*/
90		key.size = strlen(wp1);
91		item.size = strlen(wp2);
92
93/*
94 * enter key/data pair into the table
95 */
96		if ((dbp->put)(dbp, &key, &item, R_NOOVERWRITE) != NULL) {
97			fprintf(stderr, "cannot enter: key %s\n",
98				item.data);
99			exit(1);
100		}
101	}
102
103	if ( --argc ) {
104		fp = fopen ( argv[0], "r");
105		i = 0;
106		while ( fgets(wp1, 8192, fp) &&
107			fgets(wp2, 8192, fp) &&
108			i++ < MAXWORDS) {
109		    key.size = strlen(wp1);
110		    stat = (dbp->del)(dbp, &key, 0);
111		    if (stat) {
112			fprintf ( stderr, "Error retrieving %s\n", key.data );
113			exit(1);
114		    }
115		}
116		fclose(fp);
117	}
118	(dbp->close)(dbp);
119	exit(0);
120}
121