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      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