82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* $NetBSD: geom.c,v 1.9 2006/08/19 21:18:40 martin Exp $ */
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/*
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* Copyright (c) 1995, 1997 Jason R. Thorpe.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project
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* by Jason R. Thorpe.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* Modified by Philip A. Nelson for use in sysinst. */
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <util.h>
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#include <errno.h>
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#include "defs.h"
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static int
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get_label(const char *disk, struct disklabel *l, unsigned long cmd)
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{
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char diskpath[MAXPATHLEN];
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int fd;
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int sv_errno;
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/* Open the disk. */
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fd = opendisk(disk, O_RDONLY, diskpath, sizeof(diskpath), 0);
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if (fd < 0)
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return 0;
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if (ioctl(fd, cmd, l) < 0) {
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sv_errno = errno;
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(void)close(fd);
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errno = sv_errno;
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return 0;
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}
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(void)close(fd);
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return 1;
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}
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int
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get_geom(const char *disk, struct disklabel *l)
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{
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return get_label(disk, l, DIOCGDEFLABEL);
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}
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int
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get_real_geom(const char *disk, struct disklabel *l)
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{
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return get_label(disk, l, DIOCGDINFO);
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}
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