BSD 4_3_Net_2 release

[unix-history] / usr / src / usr.sbin / kvm_mkdb / kvm_mkdb.c

/*-
* Copyright (c) 1990 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
char copyright[] =
"@(#) Copyright (c) 1990 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)kvm_mkdb.c  5.11 (Berkeley) 4/27/91";
#endif /* not lint */

#include <sys/param.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <db.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <paths.h>

char *tmp;
#define basename(cp)    ((tmp=rindex((cp), '/')) ? tmp+1 : (cp))

main(argc, argv)
       int argc;
       char **argv;
{
       extern int optind;
       DB *db;
       int ch;
       char *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN];

       while ((ch = getopt(argc, argv, "")) != EOF)
               switch((char)ch) {
               case '?':
               default:
                       usage();
               }
       argc -= optind;
       argv += optind;

       nlistpath = argc > 1 ? argv[0] : _PATH_UNIX;
       nlistname = basename(nlistpath);

       (void)sprintf(dbtemp, "%s/kvm_%s.tmp", _PATH_VARRUN, nlistname);
       (void)sprintf(dbname, "%s/kvm_%s.db", _PATH_VARRUN, nlistname);
       (void)umask(0);
       db = hash_open(dbtemp, O_CREAT|O_WRONLY|O_EXCL,
           S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, NULL);
       if (!db) {
               (void)fprintf(stderr,
                   "kvm_mkdb: %s: %s\n", dbtemp, strerror(errno));
               exit(1);
       }
       create_knlist(nlistpath, db);
       (void)(db->close)(db);
       if (rename(dbtemp, dbname)) {
               (void)fprintf(stderr, "kvm_mkdb: %s to %s: %s.\n",
                   dbtemp, dbname, strerror(errno));
               exit(1);
       }
       exit(0);
}

error(n)
       char *n;
{
       int sverr;

       sverr = errno;
       (void)fprintf(stderr, "kvm_mkdb: ");
       if (n)
               (void)fprintf(stderr, "%s: ", n);
       (void)fprintf(stderr, "%s\n", strerror(sverr));
       exit(1);
}

usage()
{
       (void)fprintf(stderr, "usage: kvm_mkdb [file]\n");
       exit(1);
}