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