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      1 /*	$NetBSD: openraw.c,v 1.3 2009/03/14 21:04:06 dsl Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Julian Coleman, Waldi Ravens and Leo Weppelman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include "privahdi.h"
     33 #include <fcntl.h>
     34 #include <paths.h>
     35 #include <stdio.h>
     36 #include <machine/disklabel.h>
     37 
     38 /*
     39  * Open raw disk partition.
     40  */
     41 int
     42 openraw (const char *name, int flags)
     43 {
     44 	char	buf[MAXPATHLEN];
     45 	int	f;
     46 
     47 	if ((f = open (name, flags)) != -1)
     48 		return (f);
     49 
     50 	snprintf (buf, MAXPATHLEN, "r%s%c", name, RAW_PART + 'a');
     51 	if ((f = open (buf, flags)) != -1)
     52 		return (f);
     53 
     54 	snprintf (buf, MAXPATHLEN, "%sr%s%c", _PATH_DEV, name, RAW_PART + 'a');
     55 	if ((f = open (buf, flags)) != -1)
     56 		return (f);
     57 
     58 	return (0);
     59 }
     60