Remove __P macros from src/usr.bin and src/usr.sbin.
[dragonfly.git] / usr.sbin / dev_mkdb / dev_mkdb.c
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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.
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32 *
33 * @(#) Copyright (c) 1990, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)dev_mkdb.c 8.1 (Berkeley) 6/6/93
35 * $FreeBSD: src/usr.sbin/dev_mkdb/dev_mkdb.c,v 1.4.2.1 2001/11/25 18:34:09 iedowse Exp $
2d8a3be7 36 * $DragonFly: src/usr.sbin/dev_mkdb/dev_mkdb.c,v 1.3 2003/11/03 19:31:36 eirikn Exp $
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37 */
38
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39#include <sys/param.h>
40#include <sys/stat.h>
41
42#include <db.h>
43#include <dirent.h>
44#include <err.h>
45#include <fcntl.h>
46#include <kvm.h>
47#include <nlist.h>
48#include <paths.h>
49#include <stdio.h>
50#include <stdlib.h>
51#include <string.h>
52#include <unistd.h>
53
2d8a3be7 54static void usage(void);
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55
56int
57main(argc, argv)
58 int argc;
59 char *argv[];
60{
61 register DIR *dirp;
62 register struct dirent *dp;
63 struct stat sb;
64 struct {
65 mode_t type;
66 dev_t dev;
67 } bkey;
68 DB *db;
69 DBT data, key;
70 int ch, fflag;
71 u_char buf[MAXNAMLEN + 1];
72 char dbtmp[MAXPATHLEN + 1], dbname[MAXPATHLEN + 1];
73 const char *dirname;
74
75 fflag = 0;
76 while ((ch = getopt(argc, argv, "f:")) != -1)
77 switch((char)ch) {
78 case 'f':
79 strlcpy(dbname, optarg, sizeof(dbname));
80 fflag = 1;
81 break;
82 case '?':
83 default:
84 usage();
85 }
86 argc -= optind;
87 argv += optind;
88
89 if (argc > 1)
90 usage();
91 if (argc == 1)
92 dirname = argv[0];
93 else
94 dirname = _PATH_DEV;
95
96 if (!fflag) {
97 (void)snprintf(dbname, sizeof(dbtmp), "%sdev.db", _PATH_VARRUN);
98 (void)snprintf(dbtmp, sizeof(dbtmp), "%sdev.tmp", _PATH_VARRUN);
99 } else
100 (void)snprintf(dbtmp, sizeof(dbtmp), "%s.tmp", dbname);
101
102 if (chdir(dirname))
103 err(1, "%s", dirname);
104
105 dirp = opendir(".");
106
107 db = dbopen(dbtmp, O_CREAT|O_EXLOCK|O_RDWR|O_TRUNC,
108 S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, DB_HASH, NULL);
109 if (db == NULL)
110 err(1, "%s", dbtmp);
111
112 /*
113 * Keys are a mode_t followed by a dev_t. The former is the type of
114 * the file (mode & S_IFMT), the latter is the st_rdev field. Note
115 * that the structure may contain padding, so we have to clear it
116 * out here.
117 */
118 bzero(&bkey, sizeof(bkey));
119 key.data = &bkey;
120 key.size = sizeof(bkey);
121 data.data = buf;
122 while ((dp = readdir(dirp))) {
123 if (lstat(dp->d_name, &sb)) {
124 warn("%s", dp->d_name);
125 continue;
126 }
127
128 /* Create the key. */
129 if (S_ISCHR(sb.st_mode))
130 bkey.type = S_IFCHR;
131 else if (S_ISBLK(sb.st_mode))
132 bkey.type = S_IFBLK;
133 else
134 continue;
135 bkey.dev = sb.st_rdev;
136
137 /*
138 * Create the data; nul terminate the name so caller doesn't
139 * have to.
140 */
141 bcopy(dp->d_name, buf, dp->d_namlen);
142 buf[dp->d_namlen] = '\0';
143 data.size = dp->d_namlen + 1;
144 if ((db->put)(db, &key, &data, 0))
145 err(1, "dbput %s", dbtmp);
146 }
147 (void)(db->close)(db);
148 if (rename(dbtmp, dbname))
149 err(1, "rename %s to %s", dbtmp, dbname);
150 exit(0);
151}
152
153static void
154usage()
155{
156 (void)fprintf(stderr, "usage: dev_mkdb [-f file] [directory]\n");
157 exit(1);
158}