mirror of
https://git.FreeBSD.org/src.git
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bb04461ba0
nonsense to use a mmap'ed file instead and told the DB/hash what we are up to. dev_mkdb could maybe benefit from the same treatment.
120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1990, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)kvm_mkdb.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <db.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "extern.h"
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static void usage __P((void));
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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DB *db;
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int ch;
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char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN];
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HASHINFO hdefault;
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while ((ch = getopt(argc, argv, "")) != EOF)
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switch (ch) {
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc > 1)
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usage();
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/* If the existing db file matches the currently running kernel, exit */
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if (testdb())
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exit(0);
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#define basename(cp) ((p = rindex((cp), '/')) != NULL ? p + 1 : (cp))
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nlistpath = argc > 0 ? argv[0] : (char *)getbootfile();
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nlistname = basename(nlistpath);
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(void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp",
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_PATH_VARDB, nlistname);
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(void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db",
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_PATH_VARDB, nlistname);
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(void)umask(0);
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/* don't handicap db/hash by using the defaults... */
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memset(&hdefault,0,sizeof hdefault);
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hdefault.bsize = NBPG;
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hdefault.cachesize = 50*NBPG;
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hdefault.nelem = 1000;
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db = dbopen(dbtemp, O_CREAT | O_EXLOCK | O_TRUNC | O_RDWR,
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S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, DB_HASH, &hdefault);
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if (db == NULL)
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err(1, "%s", dbtemp);
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create_knlist(nlistpath, db);
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if (db->close(db))
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err(1, "%s", dbtemp);
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if (rename(dbtemp, dbname))
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err(1, "rename %s to %s", dbtemp, dbname);
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exit(0);
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}
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void
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usage()
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{
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(void)fprintf(stderr, "usage: kvm_mkdb [file]\n");
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exit(1);
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}
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