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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 static char copyright[] = 39 "@(#) Copyright (c) 1991, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #if defined(LIBC_SCCS) && !defined(lint) 44 static char sccsid[] = "@(#)tdel.c 8.1 (Berkeley) 6/4/93"; 45 #endif /* LIBC_SCCS and not lint */ 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 #include <sys/types.h> 50 #include <sys/file.h> 51 #include <db.h> 52 #include <stdio.h> 53 54 #define INITIAL 25000 55 #define MAXWORDS 25000 /* # of elements in search table */ 56 57 /* Usage: thash pagesize fillfactor file */ 58 char wp1[8192]; 59 char wp2[8192]; 60 main(argc, argv) 61 char **argv; 62 { 63 DBT item, key; 64 DB *dbp; 65 HASHINFO ctl; 66 FILE *fp; 67 int stat; 68 69 int i = 0; 70 71 argv++; 72 ctl.nelem = INITIAL; 73 ctl.hash = NULL; 74 ctl.bsize = atoi(*argv++); 75 ctl.ffactor = atoi(*argv++); 76 ctl.cachesize = 1024 * 1024; /* 1 MEG */ 77 ctl.lorder = 0; 78 argc -= 2; 79 if (!(dbp = dbopen( NULL, O_CREAT|O_RDWR, 0400, DB_HASH, &ctl))) { 80 /* create table */ 81 fprintf(stderr, "cannot create: hash table size %d)\n", 82 INITIAL); 83 exit(1); 84 } 85 86 key.data = wp1; 87 item.data = wp2; 88 while ( fgets(wp1, 8192, stdin) && 89 fgets(wp2, 8192, stdin) && 90 i++ < MAXWORDS) { 91 /* 92 * put info in structure, and structure in the item 93 */ 94 key.size = strlen(wp1); 95 item.size = strlen(wp2); 96 97 /* 98 * enter key/data pair into the table 99 */ 100 if ((dbp->put)(dbp, &key, &item, R_NOOVERWRITE) != NULL) { 101 fprintf(stderr, "cannot enter: key %s\n", 102 item.data); 103 exit(1); 104 } 105 } 106 107 if ( --argc ) { 108 fp = fopen ( argv[0], "r"); 109 i = 0; 110 while ( fgets(wp1, 8192, fp) && 111 fgets(wp2, 8192, fp) && 112 i++ < MAXWORDS) { 113 key.size = strlen(wp1); 114 stat = (dbp->del)(dbp, &key, 0); 115 if (stat) { 116 fprintf ( stderr, "Error retrieving %s\n", key.data ); 117 exit(1); 118 } 119 } 120 fclose(fp); 121 } 122 (dbp->close)(dbp); 123 exit(0); 124 } 125