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125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Margo Seltzer.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1991, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)tdel.c 8.1 (Berkeley) 6/4/93";
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#endif /* LIBC_SCCS and not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/file.h>
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#include <db.h>
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#include <stdio.h>
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#define INITIAL 25000
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#define MAXWORDS 25000 /* # of elements in search table */
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/* Usage: thash pagesize fillfactor file */
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char wp1[8192];
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char wp2[8192];
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main(argc, argv)
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char **argv;
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{
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DBT item, key;
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DB *dbp;
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HASHINFO ctl;
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FILE *fp;
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int stat;
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int i = 0;
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argv++;
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ctl.nelem = INITIAL;
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ctl.hash = NULL;
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ctl.bsize = atoi(*argv++);
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ctl.ffactor = atoi(*argv++);
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ctl.cachesize = 1024 * 1024; /* 1 MEG */
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ctl.lorder = 0;
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argc -= 2;
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if (!(dbp = dbopen( NULL, O_CREAT|O_RDWR, 0400, DB_HASH, &ctl))) {
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/* create table */
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fprintf(stderr, "cannot create: hash table size %d)\n",
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INITIAL);
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exit(1);
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}
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key.data = wp1;
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item.data = wp2;
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while ( fgets(wp1, 8192, stdin) &&
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fgets(wp2, 8192, stdin) &&
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i++ < MAXWORDS) {
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/*
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* put info in structure, and structure in the item
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*/
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key.size = strlen(wp1);
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item.size = strlen(wp2);
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/*
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* enter key/data pair into the table
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*/
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if ((dbp->put)(dbp, &key, &item, R_NOOVERWRITE) != NULL) {
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fprintf(stderr, "cannot enter: key %s\n",
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item.data);
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exit(1);
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}
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}
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if ( --argc ) {
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fp = fopen ( argv[0], "r");
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i = 0;
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while ( fgets(wp1, 8192, fp) &&
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fgets(wp2, 8192, fp) &&
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i++ < MAXWORDS) {
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key.size = strlen(wp1);
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stat = (dbp->del)(dbp, &key, 0);
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if (stat) {
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fprintf ( stderr, "Error retrieving %s\n", key.data );
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exit(1);
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}
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}
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fclose(fp);
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}
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(dbp->close)(dbp);
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exit(0);
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}
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