xref: /netbsd/sbin/newfs_lfs/misc.c (revision 6550d01e)
1 /*	$NetBSD: misc.c,v 1.7 2007/01/17 21:59:49 hubertf Exp $	*/
2 
3 /*-
4  * Copyright (c) 1991, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 6/5/93";
36 #else
37 __RCSID("$NetBSD: misc.c,v 1.7 2007/01/17 21:59:49 hubertf Exp $");
38 #endif
39 #endif /* not lint */
40 
41 #include <sys/types.h>
42 #include <sys/disk.h>
43 #include <stdarg.h>
44 #include <stdlib.h>
45 #include <stdio.h>
46 #include "extern.h"
47 
48 u_int
49 lfs_log2(u_int num)
50 {
51         u_int i, limit;
52 
53         limit = 1;
54         for (i = 0; limit < num; limit = limit << 1, i++);
55         return (i);
56 }
57 
58 void
59 fatal(const char *fmt, ...)
60 {
61 	va_list ap;
62 
63 	va_start(ap, fmt);
64 	(void)fprintf(stderr, "%s: ", progname);
65 	(void)vfprintf(stderr, fmt, ap);
66 	va_end(ap);
67 	(void)fprintf(stderr, "\n");
68 	exit(1);
69 	/* NOTREACHED */
70 }
71