sys/arch/atari/stand/ahdilabel/openraw.c

   1 /*      $NetBSD: openraw.c,v 1.2 2008/04/28 20:23:15 martin 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 }