/* $NetBSD: kvm_mkdb.c,v 1.21 2018/01/23 21:06:25 sevan 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. 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.
*/
/*-
* Copyright (c) 1996 Christopher G. Demetriou. 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1990, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "from: @(#)kvm_mkdb.c 8.3 (Berkeley) 5/4/95";
#else
__RCSID("$NetBSD: kvm_mkdb.c,v 1.21 2018/01/23 21:06:25 sevan 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 <unistd.h>
#include "extern.h"
static void usage(void) __dead;
HASHINFO openinfo = {
4096, /* bsize */
128, /* ffactor */
1024, /* nelem */
2048 * 1024, /* cachesize */
NULL, /* hash() */
0 /* lorder */
};
static DB *db;
static char *dbname = NULL;
static char dbtemp[MAXPATHLEN];
int
main(int argc, char *argv[])
{
int ch;
char *nlistpath;
int docheck = 0;
int fd;
while ((ch = getopt(argc, argv, "o:")) != -1)
switch (ch) {
case 'o':
dbname = optarg;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc > 1)
usage();
if (dbname == NULL) {
dbname = _PATH_KVMDB;
docheck = 1;
} else if (strncmp(_PATH_KVMDB, dbname, sizeof(_PATH_KVMDB)) == 0) {
docheck = 1;
}
if (docheck) {
/*
* If the existing db file matches the currently running
* kernel, exit
*/
if (testdb())
exit(0);
}
if (argc <= 0) {
/*
* Check for useability of _PATH_KSYMS, if not
* then fallback to _PATH_UNIX.
* Should we complain if failure?
*/
if ((fd = open(_PATH_KSYMS, O_RDONLY)) >= 0) {
close(fd);
nlistpath = _PATH_KSYMS;
} else
nlistpath = _PATH_UNIX;
} else
nlistpath = argv[0];
(void)snprintf(dbtemp, sizeof(dbtemp), "%s.tmp", dbname);
(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)) {
warn("%s", dbtemp);
db = NULL;
punt();
}
db = NULL;
if (rename(dbtemp, dbname)) {
warn("rename %s to %s", dbtemp, dbname);
punt();
}
exit(0);
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: kvm_mkdb [-o database] [file]\n");
exit(1);
}
void
punt()
{
if (db != NULL)
db->close(db);
unlink(dbtemp);
exit(1);
}
