1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1990, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)kvm_mkdb.c 8.1 (Berkeley) 6/6/93";*/ 42 static char *rcsid = "$Id: kvm_mkdb.c,v 1.8 1994/08/29 23:17:00 mycroft Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 48 #include <db.h> 49 #include <err.h> 50 #include <errno.h> 51 #include <fcntl.h> 52 #include <paths.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 57 #include "extern.h" 58 59 static void usage __P((void)); 60 61 HASHINFO openinfo = { 62 4096, /* bsize */ 63 128, /* ffactor */ 64 1024, /* nelem */ 65 2048 * 1024, /* cachesize */ 66 NULL, /* hash() */ 67 0 /* lorder */ 68 }; 69 70 int 71 main(argc, argv) 72 int argc; 73 char *argv[]; 74 { 75 DB *db; 76 int ch; 77 char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN]; 78 79 while ((ch = getopt(argc, argv, "")) != EOF) 80 switch (ch) { 81 case '?': 82 default: 83 usage(); 84 } 85 argc -= optind; 86 argv += optind; 87 88 if (argc > 1) 89 usage(); 90 91 /* If the existing db file matches the currently running kernel, exit */ 92 if (testdb()) 93 exit(0); 94 95 #define basename(cp) ((p = rindex((cp), '/')) != NULL ? p + 1 : (cp)) 96 nlistpath = argc > 0 ? argv[0] : _PATH_UNIX; 97 nlistname = basename(nlistpath); 98 99 (void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp", 100 _PATH_VARDB, nlistname); 101 (void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db", 102 _PATH_VARDB, nlistname); 103 (void)umask(0); 104 db = dbopen(dbtemp, O_CREAT | O_EXLOCK | O_TRUNC | O_RDWR, 105 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, DB_HASH, &openinfo); 106 if (db == NULL) 107 err(1, "%s", dbtemp); 108 create_knlist(nlistpath, db); 109 if (db->close(db)) 110 err(1, "%s", dbtemp); 111 if (rename(dbtemp, dbname)) 112 err(1, "rename %s to %s", dbtemp, dbname); 113 exit(0); 114 } 115 116 void 117 usage() 118 { 119 (void)fprintf(stderr, "usage: kvm_mkdb [file]\n"); 120 exit(1); 121 } 122