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 #ifndef lint 44 static char sccsid[] = "@(#)tdel.c 8.1 (Berkeley) 6/4/93"; 45 #endif /* not lint */ 46 47 #include <sys/types.h> 48 #include <sys/file.h> 49 #include <db.h> 50 #include <stdio.h> 51 52 #define INITIAL 25000 53 #define MAXWORDS 25000 /* # of elements in search table */ 54 55 /* Usage: thash pagesize fillfactor file */ 56 char wp1[8192]; 57 char wp2[8192]; 58 main(argc, argv) 59 char **argv; 60 { 61 DBT item, key; 62 DB *dbp; 63 HASHINFO ctl; 64 FILE *fp; 65 int stat; 66 67 int i = 0; 68 69 argv++; 70 ctl.nelem = INITIAL; 71 ctl.hash = NULL; 72 ctl.bsize = atoi(*argv++); 73 ctl.ffactor = atoi(*argv++); 74 ctl.cachesize = 1024 * 1024; /* 1 MEG */ 75 ctl.lorder = 0; 76 argc -= 2; 77 if (!(dbp = dbopen( NULL, O_CREAT|O_RDWR, 0400, DB_HASH, &ctl))) { 78 /* create table */ 79 fprintf(stderr, "cannot create: hash table size %d)\n", 80 INITIAL); 81 exit(1); 82 } 83 84 key.data = wp1; 85 item.data = wp2; 86 while ( fgets(wp1, 8192, stdin) && 87 fgets(wp2, 8192, stdin) && 88 i++ < MAXWORDS) { 89 /* 90 * put info in structure, and structure in the item 91 */ 92 key.size = strlen(wp1); 93 item.size = strlen(wp2); 94 95 /* 96 * enter key/data pair into the table 97 */ 98 if ((dbp->put)(dbp, &key, &item, R_NOOVERWRITE) != NULL) { 99 fprintf(stderr, "cannot enter: key %s\n", 100 item.data); 101 exit(1); 102 } 103 } 104 105 if ( --argc ) { 106 fp = fopen ( argv[0], "r"); 107 i = 0; 108 while ( fgets(wp1, 8192, fp) && 109 fgets(wp2, 8192, fp) && 110 i++ < MAXWORDS) { 111 key.size = strlen(wp1); 112 stat = (dbp->del)(dbp, &key, 0); 113 if (stat) { 114 fprintf ( stderr, "Error retrieving %s\n", key.data ); 115 exit(1); 116 } 117 } 118 fclose(fp); 119 } 120 (dbp->close)(dbp); 121 exit(0); 122 } 123