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kvm_mkdb.c revision 1.4 
      1 /*-
      2  * Copyright (c) 1990 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 char copyright[] =
     36 "@(#) Copyright (c) 1990 The Regents of the University of California.\n\
     37  All rights reserved.\n";
     38 #endif /* not lint */
     39 
     40 #ifndef lint
     41 /*static char sccsid[] = "from: @(#)kvm_mkdb.c	5.11 (Berkeley) 4/27/91";*/
     42 static char rcsid[] = "$Id: kvm_mkdb.c,v 1.4 1993/08/01 17:59:21 mycroft Exp $";
     43 #endif /* not lint */
     44 
     45 #include <sys/param.h>
     46 #include <sys/stat.h>
     47 #include <fcntl.h>
     48 #include <db.h>
     49 #include <errno.h>
     50 #include <stdio.h>
     51 #include <string.h>
     52 #include <paths.h>
     53 
     54 char *tmp;
     55 #define basename(cp)	((tmp=rindex((cp), '/')) ? tmp+1 : (cp))
     56 
     57 main(argc, argv)
     58 	int argc;
     59 	char **argv;
     60 {
     61 	extern int optind;
     62 	DB *db;
     63 	int ch;
     64 	char *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN];
     65 
     66 	while ((ch = getopt(argc, argv, "")) != EOF)
     67 		switch((char)ch) {
     68 		case '?':
     69 		default:
     70 			usage();
     71 		}
     72 	argc -= optind;
     73 	argv += optind;
     74 
     75 	nlistpath = argc > 0 ? argv[0] : _PATH_UNIX;
     76 	nlistname = basename(nlistpath);
     77 
     78 	(void)sprintf(dbtemp, "%s/kvm_%s.tmp", _PATH_VARRUN, nlistname);
     79 	(void)sprintf(dbname, "%s/kvm_%s.db", _PATH_VARRUN, nlistname);
     80 	(void)umask(0);
     81 	db = dbopen(dbtemp, O_CREAT|O_RDWR|O_EXCL,
     82 	    S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, DB_HASH, NULL);
     83 	if (!db) {
     84 		(void)fprintf(stderr,
     85 		    "kvm_mkdb: %s: %s\n", dbtemp, strerror(errno));
     86 		exit(1);
     87 	}
     88 	create_knlist(nlistpath, db);
     89 	(void)(db->close)(db);
     90 	if (rename(dbtemp, dbname)) {
     91 		(void)fprintf(stderr, "kvm_mkdb: %s to %s: %s.\n",
     92 		    dbtemp, dbname, strerror(errno));
     93 		exit(1);
     94 	}
     95 	exit(0);
     96 }
     97 
     98 error(n)
     99 	char *n;
    100 {
    101 	int sverr;
    102 
    103 	sverr = errno;
    104 	(void)fprintf(stderr, "kvm_mkdb: ");
    105 	if (n)
    106 		(void)fprintf(stderr, "%s: ", n);
    107 	(void)fprintf(stderr, "%s\n", strerror(sverr));
    108 	exit(1);
    109 }
    110 
    111 usage()
    112 {
    113 	(void)fprintf(stderr, "usage: kvm_mkdb [file]\n");
    114 	exit(1);
    115 }
    116