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/* $OpenBSD: kvm_mkdb.c,v 1.2 1997/01/15 22:08:15 millert Exp $ */
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1990, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "from: @(#)kvm_mkdb.c 8.1 (Berkeley) 6/6/93";
#else
static char *rcsid = "$OpenBSD: kvm_mkdb.c,v 1.2 1997/01/15 22:08:15 millert Exp $";
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/stat.h>
#include <db.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "extern.h"
static void usage __P((void));
HASHINFO openinfo = {
4096, /* bsize */
128, /* ffactor */
1024, /* nelem */
2048 * 1024, /* cachesize */
NULL, /* hash() */
0 /* lorder */
};
int
main(argc, argv)
int argc;
char *argv[];
{
DB *db;
int ch;
char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN];
while ((ch = getopt(argc, argv, "")) != -1)
switch (ch) {
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc > 1)
usage();
/* If the existing db file matches the currently running kernel, exit */
if (testdb())
exit(0);
#define basename(cp) ((p = strrchr((cp), '/')) != NULL ? p + 1 : (cp))
nlistpath = argc > 0 ? argv[0] : _PATH_UNIX;
nlistname = basename(nlistpath);
(void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp",
_PATH_VARDB, nlistname);
(void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db",
_PATH_VARDB, nlistname);
(void)umask(0);
db = dbopen(dbtemp, O_CREAT | O_EXLOCK | O_TRUNC | O_RDWR,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, DB_HASH, &openinfo);
if (db == NULL)
err(1, "%s", dbtemp);
create_knlist(nlistpath, db);
if (db->close(db))
err(1, "%s", dbtemp);
if (rename(dbtemp, dbname))
err(1, "rename %s to %s", dbtemp, dbname);
exit(0);
}
void
usage()
{
(void)fprintf(stderr, "usage: kvm_mkdb [file]\n");
exit(1);
}
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