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 #ifndef lint 36 static char copyright[] = 37 "@(#) Copyright (c) 1991, 1993\n\ 38 The Regents of the University of California. All rights reserved.\n"; 39 #endif /* not lint */ 40 41 #if defined(LIBC_SCCS) && !defined(lint) 42 static char sccsid[] = "@(#)tdel.c 8.1 (Berkeley) 6/4/93"; 43 #endif /* LIBC_SCCS and not lint */ 44 #include <sys/cdefs.h> 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 */ 54 char wp1[8192]; 55 char wp2[8192]; 56 main(argc, argv) 57 char **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