1 /*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * %sccs.include.redist.c%
6 */
7
8 #ifndef lint
9 static char copyright[] =
10 "@(#) Copyright (c) 1990, 1993\n\
11 The Regents of the University of California. All rights reserved.\n";
12 #endif /* not lint */
13
14 #ifndef lint
15 static char sccsid[] = "@(#)kvm_mkdb.c 8.3 (Berkeley) 05/04/95";
16 #endif /* not lint */
17
18 #include <sys/param.h>
19 #include <sys/stat.h>
20
21 #include <db.h>
22 #include <err.h>
23 #include <errno.h>
24 #include <fcntl.h>
25 #include <paths.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29 #include <unistd.h>
30
31 #include "extern.h"
32
33 static void usage __P((void));
34
35 HASHINFO openinfo = {
36 4096, /* bsize */
37 128, /* ffactor */
38 1024, /* nelem */
39 2048 * 1024, /* cachesize */
40 NULL, /* hash() */
41 0 /* lorder */
42 };
43
44 int
main(argc,argv)45 main(argc, argv)
46 int argc;
47 char *argv[];
48 {
49 DB *db;
50 int ch;
51 char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN];
52
53 while ((ch = getopt(argc, argv, "")) != EOF)
54 switch (ch) {
55 case '?':
56 default:
57 usage();
58 }
59 argc -= optind;
60 argv += optind;
61
62 if (argc > 1)
63 usage();
64
65 /* If the existing db file matches the currently running kernel, exit */
66 if (testdb())
67 exit(0);
68
69 #define basename(cp) ((p = rindex((cp), '/')) != NULL ? p + 1 : (cp))
70 nlistpath = argc > 0 ? argv[0] : _PATH_UNIX;
71 nlistname = basename(nlistpath);
72
73 (void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp",
74 _PATH_VARDB, nlistname);
75 (void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db",
76 _PATH_VARDB, nlistname);
77 (void)umask(0);
78 db = dbopen(dbtemp, O_CREAT | O_EXLOCK | O_TRUNC | O_RDWR,
79 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, DB_HASH, &openinfo);
80 if (db == NULL)
81 err(1, "%s", dbtemp);
82 create_knlist(nlistpath, db);
83 if (db->close(db))
84 err(1, "%s", dbtemp);
85 if (rename(dbtemp, dbname))
86 err(1, "rename %s to %s", dbtemp, dbname);
87 exit(0);
88 }
89
90 void
usage()91 usage()
92 {
93 (void)fprintf(stderr, "usage: kvm_mkdb [file]\n");
94 exit(1);
95 }
96