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: @(#)dev_mkdb.c 8.1 (Berkeley) 6/6/93";*/ 42 static char rcsid[] = "$Id: dev_mkdb.c,v 1.5 1995/01/30 21:12:44 mycroft Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 48 #include <db.h> 49 #include <dirent.h> 50 #include <err.h> 51 #include <errno.h> 52 #include <fcntl.h> 53 #include <kvm.h> 54 #include <nlist.h> 55 #include <paths.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 61 void usage __P((void)); 62 63 int 64 main(argc, argv) 65 int argc; 66 char *argv[]; 67 { 68 register DIR *dirp; 69 register struct dirent *dp; 70 struct stat sb; 71 struct { 72 mode_t type; 73 dev_t dev; 74 } bkey; 75 DB *db; 76 DBT data, key; 77 int ch; 78 u_char buf[MAXNAMLEN + 1]; 79 char dbtmp[MAXPATHLEN + 1], dbname[MAXPATHLEN + 1]; 80 81 while ((ch = getopt(argc, argv, "")) != EOF) 82 switch((char)ch) { 83 case '?': 84 default: 85 usage(); 86 } 87 argc -= optind; 88 argv += optind; 89 90 if (argc > 0) 91 usage(); 92 93 if (chdir(_PATH_DEV)) 94 err(1, "%s", _PATH_DEV); 95 96 dirp = opendir("."); 97 98 (void)snprintf(dbtmp, sizeof(dbtmp), "%sdev.tmp", _PATH_VARRUN); 99 (void)snprintf(dbname, sizeof(dbtmp), "%sdev.db", _PATH_VARRUN); 100 db = dbopen(dbtmp, O_CREAT|O_EXLOCK|O_RDWR|O_TRUNC, 101 S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, DB_HASH, NULL); 102 if (db == NULL) 103 err(1, "%s", dbtmp); 104 105 /* 106 * Keys are a mode_t followed by a dev_t. The former is the type of 107 * the file (mode & S_IFMT), the latter is the st_rdev field. Note 108 * that the structure may contain padding, so we have to clear it 109 * out here. 110 */ 111 bzero(&bkey, sizeof(bkey)); 112 key.data = &bkey; 113 key.size = sizeof(bkey); 114 data.data = buf; 115 while (dp = readdir(dirp)) { 116 if (lstat(dp->d_name, &sb)) { 117 warn("%s", dp->d_name); 118 continue; 119 } 120 121 /* Create the key. */ 122 if (S_ISCHR(sb.st_mode)) 123 bkey.type = S_IFCHR; 124 else if (S_ISBLK(sb.st_mode)) 125 bkey.type = S_IFBLK; 126 else 127 continue; 128 bkey.dev = sb.st_rdev; 129 130 /* 131 * Create the data; nul terminate the name so caller doesn't 132 * have to. 133 */ 134 bcopy(dp->d_name, buf, dp->d_namlen); 135 buf[dp->d_namlen] = '\0'; 136 data.size = dp->d_namlen + 1; 137 if ((db->put)(db, &key, &data, 0)) 138 err(1, "dbput %s", dbtmp); 139 } 140 (void)(db->close)(db); 141 if (rename(dbtmp, dbname)) 142 err(1, "rename %s to %s", dbtmp, dbname); 143 exit(0); 144 } 145 146 void 147 usage() 148 { 149 150 (void)fprintf(stderr, "usage: dev_mkdb\n"); 151 exit(1); 152 } 153